Wireshark: epan/dissectors/packet-nas_5gs.c

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Member "wireshark-4.0.8/epan/dissectors/packet-nas_5gs.c" (23 Aug 2023, 496886 Bytes) of package /linux/misc/wireshark-4.0.8.tar.xz:

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1 /* packet-nas_5gs.c 2 * Routines for Non-Access-Stratum (NAS) protocol for 5G System (5GS) dissection 3 * 4 * Copyright 2018-2022, Anders Broman <anders.broman@ericsson.com> 5 * 6 * Wireshark - Network traffic analyzer 7 * By Gerald Combs <gerald@wireshark.org> 8 * Copyright 1998 Gerald Combs 9 * 10 * SPDX-License-Identifier: GPL-2.0-or-later 11 * 12 * References: 3GPP TS 24.501 16.8.0 13 */ 14 15 #include "config.h" 16 17 #include <epan/packet.h> 18 #include <epan/expert.h> 19 #include <epan/proto_data.h> 20 #include <epan/ipproto.h> 21 #include <epan/etypes.h> 22 #include <epan/exceptions.h> 23 #include <epan/show_exception.h> 24 #include <epan/to_str.h> 25 26 #include <wsutil/pow2.h> 27 #include <wsutil/pint.h> 28 #include <wsutil/wsjson.h> 29 30 #include "packet-gsm_a_common.h" 31 #include "packet-e212.h" 32 #include "packet-http.h" 33 #include "packet-tcp.h" 34 35 void proto_register_nas_5gs(void); 36 void proto_reg_handoff_nas_5gs(void); 37 38 static gboolean g_nas_5gs_null_decipher = FALSE; 39 enum { 40 DECODE_USER_DATA_AS_NONE, 41 DECODE_USER_DATA_AS_IP, 42 DECODE_USER_DATA_AS_NON_IP, 43 DECODE_USER_DATA_AS_ETHERNET 44 }; 45 static const enum_val_t nas_5gs_user_data_container_as_vals[] = { 46 {"none", "None", DECODE_USER_DATA_AS_NONE}, 47 {"ip", "IP", DECODE_USER_DATA_AS_IP}, 48 {"non_ip","Non IP", DECODE_USER_DATA_AS_NON_IP}, 49 {"ethernet","Ethernet", DECODE_USER_DATA_AS_ETHERNET}, 50 {NULL, NULL, -1} 51 }; 52 static gint g_nas_5gs_decode_user_data_container_as = DECODE_USER_DATA_AS_NONE; 53 static const gchar *g_nas_5gs_non_ip_data_dissector = ""; 54 55 56 static int dissect_nas_5gs_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, void* data); 57 static int dissect_nas_5gs(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data); 58 static guint16 de_nas_5gs_cmn_dnn(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, guint32 offset, guint len, gchar *add_string _U_, int string_len _U_); 59 static guint16 de_nas_5gs_mm_pdu_ses_id_2(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_); 60 static guint16 de_nas_5gs_cmn_add_inf(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, guint32 offset, guint len, gchar *add_string _U_, int string_len _U_); 61 static void nas_5gs_mm_5gmm_status(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, guint32 offset, guint len); 62 static guint16 de_nas_5gs_mm_req_type(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_); 63 64 static dissector_handle_t nas_5gs_handle; 65 static dissector_handle_t eap_handle; 66 static dissector_handle_t nas_eps_handle; 67 static dissector_handle_t nas_eps_plain_handle; 68 static dissector_handle_t lpp_handle; 69 static dissector_handle_t gsm_a_dtap_handle; 70 static dissector_handle_t ipv4_handle; 71 static dissector_handle_t ipv6_handle; 72 static dissector_handle_t non_ip_data_handle; 73 static dissector_handle_t ethernet_handle; 74 75 #define PNAME "Non-Access-Stratum 5GS (NAS)PDU" 76 #define PSNAME "NAS-5GS" 77 #define PFNAME "nas-5gs" 78 79 static int proto_json = -1; 80 81 static int proto_nas_5gs = -1; 82 83 int hf_nas_5gs_common_elem_id = -1; 84 int hf_nas_5gs_mm_elem_id = -1; 85 int hf_nas_5gs_sm_elem_id = -1; 86 int hf_nas_5gs_updp_elem_id = -1; 87 88 static int hf_nas_5gs_epd = -1; 89 static int hf_nas_5gs_spare_bits = -1; 90 static int hf_nas_5gs_spare_b7 = -1; 91 static int hf_nas_5gs_spare_b6 = -1; 92 static int hf_nas_5gs_spare_b5 = -1; 93 static int hf_nas_5gs_spare_b4 = -1; 94 static int hf_nas_5gs_spare_b3 = -1; 95 static int hf_nas_5gs_spare_b2 = -1; 96 static int hf_nas_5gs_spare_b1 = -1; 97 static int hf_nas_5gs_spare_b0 = -1; 98 static int hf_nas_5gs_rfu_b2; 99 static int hf_nas_5gs_rfu_b1; 100 static int hf_nas_5gs_rfu_b0; 101 static int hf_nas_5gs_security_header_type = -1; 102 static int hf_nas_5gs_msg_auth_code = -1; 103 static int hf_nas_5gs_seq_no = -1; 104 static int hf_nas_5gs_mm_msg_type = -1; 105 static int hf_nas_5gs_sm_msg_type = -1; 106 static int hf_nas_5gs_updp_msg_type = -1; 107 static int hf_nas_5gs_proc_trans_id = -1; 108 static int hf_nas_5gs_spare_half_octet = -1; 109 static int hf_nas_5gs_spare_octet = -1; 110 static int hf_nas_5gs_pdu_session_id = -1; 111 static int hf_nas_5gs_msg_elems = -1; 112 static int hf_nas_5gs_mm_for = -1; 113 static int hf_nas_5gs_cmn_add_info = -1; 114 static int hf_nas_5gs_cmn_acc_type = -1; 115 static int hf_nas_5gs_cmn_dnn = -1; 116 static int hf_nas_5gs_mm_sms_requested = -1; 117 static int hf_nas_5gs_mm_ng_ran_rcu = -1; 118 static int hf_nas_5gs_mm_5gs_pnb_ciot = -1; 119 static int hf_nas_5gs_mm_eps_pnb_ciot = -1; 120 static int hf_nas_5gs_mm_5gs_reg_type = -1; 121 static int hf_nas_5gs_mm_tsc = -1; 122 static int hf_nas_5gs_mm_nas_key_set_id = -1; 123 static int hf_nas_5gs_mm_tsc_h1 = -1; 124 static int hf_nas_5gs_mm_nas_key_set_id_h1 = -1; 125 static int hf_nas_5gs_mm_5gmm_cause = -1; 126 static int hf_nas_5gs_mm_pld_cont_type = -1; 127 static int hf_nas_5gs_mm_sst = -1; 128 static int hf_nas_5gs_mm_sd = -1; 129 static int hf_nas_5gs_mm_mapped_hplmn_sst = -1; 130 static int hf_nas_5gs_mm_mapped_hplmn_ssd = -1; 131 static int hf_nas_5gs_mm_switch_off = -1; 132 static int hf_nas_5gs_mm_re_reg_req = -1; 133 static int hf_nas_5gs_mm_acc_type = -1; 134 static int hf_nas_5gs_mm_raai_b0 = -1; 135 static int hf_nas_5gs_mm_sprti_b1 = -1; 136 static int hf_nas_5gs_mm_ma_pdu_session_info_value = -1; 137 static int hf_nas_5gs_mm_len_of_mapped_s_nssai = -1; 138 static int hf_nas_5gs_mm_conf_upd_ind_ack_b0 = -1; 139 static int hf_nas_5gs_mm_conf_upd_ind_red_b1 = -1; 140 static int hf_nas_5gs_mm_cag_info_entry_len = -1; 141 static int hf_nas_5gs_mm_cag_info_entry_cag_only = -1; 142 static int hf_nas_5gs_mm_cag_info_entry_cag_id = -1; 143 static int hf_nas_5gs_mm_ciot_small_data_cont_data_type = -1; 144 static int hf_nas_5gs_mm_ciot_small_data_cont_ddx = -1; 145 static int hf_nas_5gs_mm_ciot_small_data_cont_pdu_session_id = -1; 146 static int hf_nas_5gs_mm_ciot_small_data_cont_add_info_len = -1; 147 static int hf_nas_5gs_mm_ciot_small_data_cont_add_info = -1; 148 static int hf_nas_5gs_mm_ciot_small_data_cont_data_contents = -1; 149 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_1 = -1; 150 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_2 = -1; 151 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_3 = -1; 152 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_4 = -1; 153 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_5 = -1; 154 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_6 = -1; 155 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_7 = -1; 156 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_8 = -1; 157 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_1 = -1; 158 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_2 = -1; 159 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_3 = -1; 160 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_4 = -1; 161 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_5 = -1; 162 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_6 = -1; 163 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_7 = -1; 164 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_8 = -1; 165 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_9 = -1; 166 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_10 = -1; 167 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_11 = -1; 168 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_12 = -1; 169 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_13 = -1; 170 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_14 = -1; 171 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_15 = -1; 172 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_16 = -1; 173 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_17 = -1; 174 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_18 = -1; 175 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_19 = -1; 176 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_20 = -1; 177 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_21 = -1; 178 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_22 = -1; 179 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_23 = -1; 180 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_24 = -1; 181 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_25 = -1; 182 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_3_1 = -1; 183 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_4_1 = -1; 184 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_5_1 = -1; 185 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_1 = -1; 186 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_2 = -1; 187 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_3 = -1; 188 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_4 = -1; 189 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_5 = -1; 190 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_6 = -1; 191 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_7 = -1; 192 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_8 = -1; 193 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_1 = -1; 194 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_2 = -1; 195 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_3 = -1; 196 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_4 = -1; 197 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_5 = -1; 198 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_6 = -1; 199 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_7 = -1; 200 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_8 = -1; 201 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_9 = -1; 202 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_10 = -1; 203 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_11 = -1; 204 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_12 = -1; 205 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_13 = -1; 206 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_14 = -1; 207 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_15 = -1; 208 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_16 = -1; 209 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_17 = -1; 210 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_18 = -1; 211 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_19 = -1; 212 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_20 = -1; 213 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_21 = -1; 214 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_22 = -1; 215 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_23 = -1; 216 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_3_1 = -1; 217 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_4_1 = -1; 218 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_5_1 = -1; 219 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_6_1 = -1; 220 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_6_2 = -1; 221 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_6_3 = -1; 222 static int hf_nas_5gs_mm_ciph_key_data_ciphering_set_id = -1; 223 static int hf_nas_5gs_mm_ciph_key_data_ciphering_key = -1; 224 static int hf_nas_5gs_mm_ciph_key_data_c0_len = -1; 225 static int hf_nas_5gs_mm_ciph_key_data_c0 = -1; 226 static int hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_len = -1; 227 static int hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_len = -1; 228 static int hf_nas_5gs_mm_ciph_key_data_validity_start_time = -1; 229 static int hf_nas_5gs_mm_ciph_key_data_validity_duration = -1; 230 static int hf_nas_5gs_mm_ciph_key_data_tais_list_len = -1; 231 static int hf_nas_5gs_mm_ctrl_plane_serv_type = -1; 232 static int hf_nas_5gs_mm_nas_sec_algo_enc = -1; 233 static int hf_nas_5gs_mm_nas_sec_algo_ip = -1; 234 static int hf_nas_5gs_mm_s1_mode_b0 = -1; 235 static int hf_nas_5gs_mm_ho_attach_b1 = -1; 236 static int hf_nas_5gs_mm_lpp_cap_b2 = -1; 237 static int hf_nas_5gs_mm_restrict_ec_b3 = -1; 238 static int hf_nas_5gs_mm_5g_cp_ciot_b4 = -1; 239 static int hf_nas_5gs_mm_n3_data_b5 = -1; 240 static int hf_nas_5gs_mm_5g_iphc_cp_ciot_b6 = -1; 241 static int hf_nas_5gs_mm_sgc_b7 = -1; 242 static int hf_nas_5gs_mm_5g_srvcc_b0 = -1; 243 static int hf_nas_5gs_mm_5g_up_ciot_b1 = -1; 244 static int hf_nas_5gs_mm_v2x_b2 = -1; 245 static int hf_nas_5gs_mm_v2xcepc5_b3 = -1; 246 static int hf_nas_5gs_mm_v2xcnpc5_b4 = -1; 247 static int hf_nas_5gs_mm_5g_lcs_b5 = -1; 248 static int hf_nas_5gs_mm_nssaa_b6 = -1; 249 static int hf_nas_5gs_mm_racs_b7 = -1; 250 static int hf_nas_5gs_mm_cag_b0 = -1; 251 static int hf_nas_5gs_mm_wsusa_b1 = -1; 252 static int hf_nas_5gs_mm_multiple_up_b2 = -1; 253 static int hf_nas_5gs_mm_5g_ehc_cp_ciot_b3 = -1; 254 static int hf_nas_5gs_mm_type_id = -1; 255 static int hf_nas_5gs_mm_odd_even = -1; 256 static int hf_nas_5gs_mm_length = -1; 257 static int hf_nas_5gs_mm_pld_cont = -1; 258 static int hf_nas_5gs_mm_pld_cont_nb_entries = -1; 259 static int hf_nas_5gs_mm_pld_cont_pld_cont_len = -1; 260 static int hf_nas_5gs_mm_pld_cont_nb_opt_ies = -1; 261 static int hf_nas_5gs_mm_pld_cont_pld_cont_type = -1; 262 static int hf_nas_5gs_mm_pld_cont_opt_ie_type = -1; 263 static int hf_nas_5gs_mm_pld_cont_opt_ie_len = -1; 264 static int hf_nas_5gs_mm_pld_cont_opt_ie_val = -1; 265 static int hf_nas_5gs_mm_req_type = -1; 266 static int hf_nas_5gs_mm_serv_type = -1; 267 static int hf_nas_5gs_mm_5g_ea0 = -1; 268 static int hf_nas_5gs_mm_128_5g_ea1 = -1; 269 static int hf_nas_5gs_mm_128_5g_ea2 = -1; 270 static int hf_nas_5gs_mm_128_5g_ea3 = -1; 271 static int hf_nas_5gs_mm_5g_ea4 = -1; 272 static int hf_nas_5gs_mm_5g_ea5 = -1; 273 static int hf_nas_5gs_mm_5g_ea6 = -1; 274 static int hf_nas_5gs_mm_5g_ea7 = -1; 275 static int hf_nas_5gs_mm_5g_ia0 = -1; 276 static int hf_nas_5gs_mm_5g_128_ia1 = -1; 277 static int hf_nas_5gs_mm_5g_128_ia2 = -1; 278 static int hf_nas_5gs_mm_5g_128_ia3 = -1; 279 static int hf_nas_5gs_mm_5g_ia4 = -1; 280 static int hf_nas_5gs_mm_5g_ia5 = -1; 281 static int hf_nas_5gs_mm_5g_ia6 = -1; 282 static int hf_nas_5gs_mm_5g_ia7 = -1; 283 static int hf_nas_5gs_mm_eea0 = -1; 284 static int hf_nas_5gs_mm_128eea1 = -1; 285 static int hf_nas_5gs_mm_128eea2 = -1; 286 static int hf_nas_5gs_mm_eea3 = -1; 287 static int hf_nas_5gs_mm_eea4 = -1; 288 static int hf_nas_5gs_mm_eea5 = -1; 289 static int hf_nas_5gs_mm_eea6 = -1; 290 static int hf_nas_5gs_mm_eea7 = -1; 291 static int hf_nas_5gs_mm_eia0 = -1; 292 static int hf_nas_5gs_mm_128eia1 = -1; 293 static int hf_nas_5gs_mm_128eia2 = -1; 294 static int hf_nas_5gs_mm_eia3 = -1; 295 static int hf_nas_5gs_mm_eia4 = -1; 296 static int hf_nas_5gs_mm_eia5 = -1; 297 static int hf_nas_5gs_mm_eia6 = -1; 298 static int hf_nas_5gs_mm_eia7 = -1; 299 static int hf_nas_5gs_mm_n1_mode_reg_b1 = -1; 300 static int hf_nas_5gs_mm_s1_mode_reg_b0 = -1; 301 302 static int hf_nas_5gs_mm_sal_al_t = -1; 303 static int hf_nas_5gs_mm_sal_t_li = -1; 304 static int hf_nas_5gs_mm_sal_num_e = -1; 305 306 static int hf_nas_5gs_pdu_ses_sts_psi_7_b7 = -1; 307 static int hf_nas_5gs_pdu_ses_sts_psi_6_b6 = -1; 308 static int hf_nas_5gs_pdu_ses_sts_psi_5_b5 = -1; 309 static int hf_nas_5gs_pdu_ses_sts_psi_4_b4 = -1; 310 static int hf_nas_5gs_pdu_ses_sts_psi_3_b3 = -1; 311 static int hf_nas_5gs_pdu_ses_sts_psi_2_b2 = -1; 312 static int hf_nas_5gs_pdu_ses_sts_psi_1_b1 = -1; 313 static int hf_nas_5gs_pdu_ses_sts_psi_0_b0 = -1; 314 315 static int hf_nas_5gs_pdu_ses_sts_psi_15_b7 = -1; 316 static int hf_nas_5gs_pdu_ses_sts_psi_14_b6 = -1; 317 static int hf_nas_5gs_pdu_ses_sts_psi_13_b5 = -1; 318 static int hf_nas_5gs_pdu_ses_sts_psi_12_b4 = -1; 319 static int hf_nas_5gs_pdu_ses_sts_psi_11_b3 = -1; 320 static int hf_nas_5gs_pdu_ses_sts_psi_10_b2 = -1; 321 static int hf_nas_5gs_pdu_ses_sts_psi_9_b1 = -1; 322 static int hf_nas_5gs_pdu_ses_sts_psi_8_b0 = -1; 323 324 static int hf_nas_5gs_pdu_ses_rect_res_psi_7_b7 = -1; 325 static int hf_nas_5gs_pdu_ses_rect_res_psi_6_b6 = -1; 326 static int hf_nas_5gs_pdu_ses_rect_res_psi_5_b5 = -1; 327 static int hf_nas_5gs_pdu_ses_rect_res_psi_4_b4 = -1; 328 static int hf_nas_5gs_pdu_ses_rect_res_psi_3_b3 = -1; 329 static int hf_nas_5gs_pdu_ses_rect_res_psi_2_b2 = -1; 330 static int hf_nas_5gs_pdu_ses_rect_res_psi_1_b1 = -1; 331 static int hf_nas_5gs_pdu_ses_rect_res_psi_0_b0 = -1; 332 333 static int hf_nas_5gs_pdu_ses_rect_res_psi_15_b7 = -1; 334 static int hf_nas_5gs_pdu_ses_rect_res_psi_14_b6 = -1; 335 static int hf_nas_5gs_pdu_ses_rect_res_psi_13_b5 = -1; 336 static int hf_nas_5gs_pdu_ses_rect_res_psi_12_b4 = -1; 337 static int hf_nas_5gs_pdu_ses_rect_res_psi_11_b3 = -1; 338 static int hf_nas_5gs_pdu_ses_rect_res_psi_10_b2 = -1; 339 static int hf_nas_5gs_pdu_ses_rect_res_psi_9_b1 = -1; 340 static int hf_nas_5gs_pdu_ses_rect_res_psi_8_b0 = -1; 341 342 static int hf_nas_5gs_ul_data_sts_psi_7_b7 = -1; 343 static int hf_nas_5gs_ul_data_sts_psi_6_b6 = -1; 344 static int hf_nas_5gs_ul_data_sts_psi_5_b5 = -1; 345 static int hf_nas_5gs_ul_data_sts_psi_4_b4 = -1; 346 static int hf_nas_5gs_ul_data_sts_psi_3_b3 = -1; 347 static int hf_nas_5gs_ul_data_sts_psi_2_b2 = -1; 348 static int hf_nas_5gs_ul_data_sts_psi_1_b1 = -1; 349 static int hf_nas_5gs_ul_data_sts_psi_0_b0 = -1; 350 351 static int hf_nas_5gs_ul_data_sts_psi_15_b7 = -1; 352 static int hf_nas_5gs_ul_data_sts_psi_14_b6 = -1; 353 static int hf_nas_5gs_ul_data_sts_psi_13_b5 = -1; 354 static int hf_nas_5gs_ul_data_sts_psi_12_b4 = -1; 355 static int hf_nas_5gs_ul_data_sts_psi_11_b3 = -1; 356 static int hf_nas_5gs_ul_data_sts_psi_10_b2 = -1; 357 static int hf_nas_5gs_ul_data_sts_psi_9_b1 = -1; 358 static int hf_nas_5gs_ul_data_sts_psi_8_b0 = -1; 359 360 static int hf_nas_5gs_allow_pdu_ses_sts_psi_7_b7 = -1; 361 static int hf_nas_5gs_allow_pdu_ses_sts_psi_6_b6 = -1; 362 static int hf_nas_5gs_allow_pdu_ses_sts_psi_5_b5 = -1; 363 static int hf_nas_5gs_allow_pdu_ses_sts_psi_4_b4 = -1; 364 static int hf_nas_5gs_allow_pdu_ses_sts_psi_3_b3 = -1; 365 static int hf_nas_5gs_allow_pdu_ses_sts_psi_2_b2 = -1; 366 static int hf_nas_5gs_allow_pdu_ses_sts_psi_1_b1 = -1; 367 static int hf_nas_5gs_allow_pdu_ses_sts_psi_0_b0 = -1; 368 369 static int hf_nas_5gs_allow_pdu_ses_sts_psi_15_b7 = -1; 370 static int hf_nas_5gs_allow_pdu_ses_sts_psi_14_b6 = -1; 371 static int hf_nas_5gs_allow_pdu_ses_sts_psi_13_b5 = -1; 372 static int hf_nas_5gs_allow_pdu_ses_sts_psi_12_b4 = -1; 373 static int hf_nas_5gs_allow_pdu_ses_sts_psi_11_b3 = -1; 374 static int hf_nas_5gs_allow_pdu_ses_sts_psi_10_b2 = -1; 375 static int hf_nas_5gs_allow_pdu_ses_sts_psi_9_b1 = -1; 376 static int hf_nas_5gs_allow_pdu_ses_sts_psi_8_b0 = -1; 377 378 static int hf_nas_5gs_sm_pdu_session_type = -1; 379 static int hf_nas_5gs_sm_sc_mode = -1; 380 static int hf_nas_5gs_sm_eplmnc = -1; 381 static int hf_nas_5gs_sm_ratc = -1; 382 static int hf_nas_5gs_sm_ept_s1 = -1; 383 static int hf_nas_5gs_sm_abo = -1; 384 static int hf_nas_5gs_sm_atsss_cont = -1; 385 static int hf_nas_5gs_sm_cpoi = -1; 386 static int hf_nas_5gs_sm_ip_hdr_comp_config_p0104 = -1; 387 static int hf_nas_5gs_sm_ip_hdr_comp_config_p0103 = -1; 388 static int hf_nas_5gs_sm_ip_hdr_comp_config_p0102 = -1; 389 static int hf_nas_5gs_sm_ip_hdr_comp_config_p0006 = -1; 390 static int hf_nas_5gs_sm_ip_hdr_comp_config_p0004 = -1; 391 static int hf_nas_5gs_sm_ip_hdr_comp_config_p0003 = -1; 392 static int hf_nas_5gs_sm_ip_hdr_comp_config_p0002 = -1; 393 static int hf_nas_5gs_sm_ip_hdr_comp_config_max_cid = -1; 394 static int hf_nas_5gs_sm_ip_hdr_comp_config_add_ip_hdr_compr_cxt_setup_params_type = -1; 395 static int hf_nas_5gs_sm_ip_hdr_comp_config_add_ip_hdr_compr_cxt_setup_params_cont = -1; 396 static int hf_nas_5gs_sm_ds_tt_eth_port_mac_addr = -1; 397 static int hf_nas_5gs_sm_ue_ds_tt_residence_time = -1; 398 static int hf_nas_5gs_sm_port_mgmt_info_cont = -1; 399 static int hf_nas_5gs_sm_eth_hdr_comp_config_cid_len = -1; 400 static int hf_nas_5gs_sm_sel_sc_mode = -1; 401 static int hf_nas_5gs_sm_tpmic_b7 = -1; 402 static int hf_nas_5gs_sm_atsss_st_b3_b6 = -1; 403 static int hf_nas_5gs_sm_ept_s1_b2 = -1; 404 static int hf_nas_5gs_sm_mh6_pdu_b1 = -1; 405 static int hf_nas_5gs_sm_rqos_b0 = -1; 406 static int hf_nas_5gs_sm_5gsm_cause = -1; 407 static int hf_nas_5gs_sm_apsi = -1; 408 static int hf_nas_5gs_sm_apsr = -1; 409 static int hf_nas_5gs_sm_int_prot_max_data_rate_ul = -1; 410 static int hf_nas_5gs_sm_int_prot_max_data_rate_dl = -1; 411 static int hf_nas_5gs_sm_si6lla = -1; 412 static int hf_nas_5gs_sm_pdu_ses_type = -1; 413 static int hf_nas_5gs_sm_pdu_addr_inf_ipv4 = -1; 414 static int hf_nas_5gs_sm_pdu_addr_inf_ipv6 = -1; 415 static int hf_nas_5gs_sm_smf_ipv6_lla = -1; 416 static int hf_nas_5gs_sm_qos_rule_id = -1; 417 static int hf_nas_5gs_sm_length = -1; 418 static int hf_nas_5gs_sm_rop = -1; 419 static int hf_nas_5gs_sm_dqr = -1; 420 static int hf_nas_5gs_sm_nof_pkt_filters = -1; 421 static int hf_nas_5gs_sm_pkt_flt_id = -1; 422 static int hf_nas_5gs_sm_pkt_flt_dir = -1; 423 static int hf_nas_5gs_sm_pf_len = -1; 424 static int hf_nas_5gs_sm_pf_type = -1; 425 static int hf_nas_5gs_sm_e = -1; 426 static int hf_nas_5gs_sm_nof_params = -1; 427 static int hf_nas_5gs_sm_param_id = -1; 428 static int hf_nas_5gs_sm_param_len = -1; 429 static int hf_nas_5gs_sm_qos_rule_precedence = -1; 430 static int hf_nas_5gs_sm_segregation = -1; 431 static int hf_nas_5gs_sm_param_cont = -1; 432 static int hf_nas_5gs_sm_5qi = -1; 433 static int hf_nas_5gs_sm_unit_for_gfbr_ul = -1; 434 static int hf_nas_5gs_sm_gfbr_ul = -1; 435 static int hf_nas_5gs_sm_unit_for_gfbr_dl = -1; 436 static int hf_nas_5gs_sm_gfbr_dl = -1; 437 static int hf_nas_5gs_sm_unit_for_mfbr_ul = -1; 438 static int hf_nas_5gs_sm_mfbr_ul = -1; 439 static int hf_nas_5gs_sm_unit_for_mfbr_dl = -1; 440 static int hf_nas_5gs_sm_mfbr_dl = -1; 441 static int hf_nas_5gs_sm_averaging_window = -1; 442 static int hf_nas_5gs_sm_eps_bearer_id = -1; 443 static int hf_nas_5gs_sm_qfi = -1; 444 static int hf_nas_5gs_sm_mapd_eps_b_cont_id = -1; 445 static int hf_nas_5gs_sm_mapd_eps_b_cont_opt_code = -1; 446 static int hf_nas_5gs_sm_qos_des_flow_opt_code = -1; 447 static int hf_nas_5gs_sm_mapd_eps_b_cont_E = -1; 448 static int hf_nas_5gs_sm_mapd_eps_b_cont_num_eps_parms = -1; 449 static int hf_nas_5gs_sm_mapd_eps_b_cont_E_mod = -1; 450 static int hf_nas_5gs_sm_mapd_eps_b_cont_param_id = -1; 451 452 static int hf_nas_5gs_sm_unit_for_session_ambr_dl = -1; 453 static int hf_nas_5gs_sm_session_ambr_dl = -1; 454 static int hf_nas_5gs_sm_unit_for_session_ambr_ul = -1; 455 static int hf_nas_5gs_sm_session_ambr_ul = -1; 456 static int hf_nas_5gs_sm_dm_spec_id = -1; 457 static int hf_nas_5gs_sm_all_ssc_mode_b0 = -1; 458 static int hf_nas_5gs_sm_all_ssc_mode_b1 = -1; 459 static int hf_nas_5gs_sm_all_ssc_mode_b2 = -1; 460 static int hf_nas_5gs_addr_mask_ipv4 = -1; 461 static int hf_nas_5gs_ipv6 = -1; 462 static int hf_nas_5gs_ipv6_prefix_len = -1; 463 static int hf_nas_5gs_protocol_identifier_or_next_hd = -1; 464 static int hf_nas_5gs_mm_rinmr = -1; 465 static int hf_nas_5gs_mm_hdp = -1; 466 static int hf_nas_5gs_mm_cipher_key = -1; 467 static int hf_nas_5gs_mm_dcni = -1; 468 static int hf_nas_5gs_mm_nssci = -1; 469 static int hf_nas_5gs_mm_nssai_inc_mode = -1; 470 static int hf_nas_5gs_mm_ue_usage_setting = -1; 471 static int hf_nas_5gs_mm_5gs_drx_param = -1; 472 static int hf_nas_5gs_sup_andsp = -1; 473 474 static int ett_nas_5gs = -1; 475 static int ett_nas_5gs_mm_nssai = -1; 476 static int ett_nas_5gs_mm_pdu_ses_id = -1; 477 static int ett_nas_5gs_sm_qos_rules = -1; 478 static int ett_nas_5gs_sm_qos_params = -1; 479 static int ett_nas_5gs_plain = -1; 480 static int ett_nas_5gs_sec = -1; 481 static int ett_nas_5gs_mm_part_sal = -1; 482 static int ett_nas_5gs_mm_part_tal = -1; 483 static int ett_nas_5gs_sm_mapd_eps_b_cont = -1; 484 static int ett_nas_5gs_sm_mapd_eps_b_cont_params_list = -1; 485 static int ett_nas_5gs_enc = -1; 486 static int ett_nas_5gs_mm_ladn_indic = -1; 487 static int ett_nas_5gs_mm_sor = -1; 488 static int ett_nas_5gs_sm_pkt_filter_components = -1; 489 static int ett_nas_5gs_updp_ue_policy_section_mgm_lst = -1; 490 static int ett_nas_5gs_updp_ue_policy_section_mgm_sublst = -1; 491 static int ett_nas_5gs_ue_policies_ursp = -1; 492 static int ett_nas_5gs_ursp_traff_desc = -1; 493 static int ett_nas_5gs_ursp_r_sel_desc_cont = -1; 494 static int ett_nas_5gs_updp_upsi_list = -1; 495 static int ett_nas_5gs_mm_rej_nssai = -1; 496 static int ett_nas_5gs_mm_scheme_output = -1; 497 static int ett_nas_5gs_mm_pld_cont_pld_entry = -1; 498 static int ett_nas_5gs_mm_pld_cont_opt_ie = -1; 499 static int ett_nas_5gs_mm_cag_info_entry = -1; 500 static int ett_nas_5gs_ciot_small_data_cont_data_contents = -1; 501 static int ett_nas_5gs_user_data_cont = -1; 502 static int ett_nas_5gs_ciph_data_set = -1; 503 static int ett_nas_5gs_mm_mapped_nssai = -1; 504 static int ett_nas_5gs_mm_partial_extended_rejected_nssai_list = -1; 505 static int ett_nas_5gs_mm_ext_rej_nssai = -1; 506 static int ett_nas_5gs_mm_op_def_acc_cat_def = -1; 507 static int ett_nas_5gs_mm_op_def_acc_cat_criteria_component = -1; 508 static int ett_nas_5gs_mm_op_def_acc_cat_criteria = -1; 509 510 static int hf_nas_5gs_mm_abba = -1; 511 static int hf_nas_5gs_mm_supi_fmt = -1; 512 static int hf_nas_5gs_mm_routing_indicator = -1; 513 static int hf_nas_5gs_mm_prot_scheme_id = -1; 514 static int hf_nas_5gs_mm_pki = -1; 515 static int hf_nas_5gs_mm_suci_msin = -1; 516 static int hf_nas_5gs_mm_scheme_output = -1; 517 static int hf_nas_5gs_mm_scheme_output_ecc_public_key = -1; 518 static int hf_nas_5gs_mm_scheme_output_ciphertext = -1; 519 static int hf_nas_5gs_mm_scheme_output_mac_tag = -1; 520 static int hf_nas_5gs_mm_suci_nai = -1; 521 static int hf_nas_5gs_mm_imei = -1; 522 static int hf_nas_5gs_mm_imeisv = -1; 523 static int hf_nas_5gs_mm_mauri = -1; 524 static int hf_nas_5gs_mm_mac_addr = -1; 525 static int hf_nas_5gs_mm_eui_64 = -1; 526 static int hf_nas_5gs_mm_reg_res_res = -1; 527 static int hf_nas_5gs_mm_reg_res_sms_allowed = -1; 528 static int hf_nas_5gs_mm_reg_res_nssaa_perf = -1; 529 static int hf_nas_5gs_mm_reg_res_emergency_reg = -1; 530 static int hf_nas_5gs_amf_region_id = -1; 531 static int hf_nas_5gs_amf_set_id = -1; 532 static int hf_nas_5gs_amf_pointer = -1; 533 static int hf_nas_5gs_5g_tmsi = -1; 534 static int hf_nas_5gs_mm_op_def_access_cat_len = -1; 535 static int hf_nas_5gs_mm_op_def_access_cat_precedence = -1; 536 static int hf_nas_5gs_mm_op_def_access_cat_psac = -1; 537 static int hf_nas_5gs_mm_op_def_access_cat_number = -1; 538 static int hf_nas_5gs_mm_op_def_access_cat_criteria_length = -1; 539 static int hf_nas_5gs_mm_op_def_access_cat_criteria_type = -1; 540 static int hf_nas_5gs_mm_op_def_access_cat_criteria_dnn_count = -1; 541 static int hf_nas_5gs_mm_op_def_access_cat_criteria_dnn_len = -1; 542 static int hf_nas_5gs_mm_op_def_access_cat_criteria_os_id_os_app_id_count = -1; 543 static int hf_nas_5gs_mm_op_def_access_cat_criteria_os_id = -1; 544 static int hf_nas_5gs_mm_op_def_access_cat_criteria_os_app_id_len = -1; 545 static int hf_nas_5gs_mm_op_def_access_cat_criteria_os_app_id = -1; 546 static int hf_nas_5gs_mm_op_def_access_cat_criteria_s_nssai_count = -1; 547 static int hf_nas_5gs_mm_op_def_access_cat_criteria_s_nssai_len = -1; 548 static int hf_nas_5gs_mm_op_def_access_cat_standardized_number = -1; 549 static int hf_nas_5gs_mm_sms_indic_sai = -1; 550 551 static int hf_nas_5gs_nw_feat_sup_mpsi_b7 = -1; 552 static int hf_nas_5gs_nw_feat_sup_ims_iwk_n26_b6 = -1; 553 static int hf_nas_5gs_nw_feat_sup_ims_emf_b5b4 = -1; 554 static int hf_nas_5gs_nw_feat_sup_ims_emc_b3b2 = -1; 555 static int hf_nas_5gs_nw_feat_sup_ims_vops_3gpp = -1; 556 static int hf_nas_5gs_nw_feat_sup_ims_vops_n3gpp = -1; 557 static int hf_nas_5gs_nw_feat_sup_emcn3 = -1; 558 static int hf_nas_5gs_nw_feat_sup_mcsi = -1; 559 static int hf_nas_5gs_nw_feat_sup_restrict_ec = -1; 560 static int hf_nas_5gs_nw_feat_sup_5g_cp_ciot = -1; 561 static int hf_nas_5gs_nw_feat_sup_n3_data = -1; 562 static int hf_nas_5gs_nw_feat_sup_5g_iphc_cp_ciot = -1; 563 static int hf_nas_5gs_nw_feat_sup_5g_ciot_up = -1; 564 static int hf_nas_5gs_nw_feat_sup_5g_lcs = -1; 565 static int hf_nas_5gs_nw_feat_sup_ats_ind = -1; 566 static int hf_nas_5gs_nw_feat_sup_5g_ehc_cp_ciot = -1; 567 568 static int hf_nas_5gs_tac = -1; 569 570 static int hf_nas_5gs_mm_tal_t_li = -1; 571 static int hf_nas_5gs_mm_tal_num_e = -1; 572 static int hf_nas_5gs_sm_mapd_eps_b_cont_eps_param_cont = -1; 573 574 static int hf_nas_5gs_sm_max_nb_sup_pkt_flt_nb = -1; 575 static int hf_nas_5gs_sm_max_nb_sup_pkt_flt_spare = -1; 576 577 static int hf_nas_5gs_kacf = -1; 578 static int hf_nas_5gs_ncc = -1; 579 580 static int hf_nas_5gs_sor_hdr0_ack = -1; 581 static int hf_nas_5gs_sor_hdr0_list_type = -1; 582 static int hf_nas_5gs_sor_hdr0_list_ind = -1; 583 static int hf_nas_5gs_sor_hdr0_sor_data_type = -1; 584 static int hf_nas_5gs_sor_mac_iue = -1; 585 static int hf_nas_5gs_sor_mac_iausf = -1; 586 static int hf_nas_5gs_counter_sor = -1; 587 static int hf_nas_5gs_sor_sec_pkt = -1; 588 589 static int hf_nas_5gs_access_tech_o1_b7 = -1; 590 static int hf_nas_5gs_access_tech_o1_b6 = -1; 591 static int hf_nas_5gs_access_tech_o1_b5 = -1; 592 static int hf_nas_5gs_access_tech_o1_b4 = -1; 593 static int hf_nas_5gs_access_tech_o1_b3 = -1; 594 static int hf_nas_5gs_access_tech_o2_b7 = -1; 595 static int hf_nas_5gs_access_tech_o2_b6 = -1; 596 static int hf_nas_5gs_access_tech_o2_b5 = -1; 597 static int hf_nas_5gs_access_tech_o2_b4 = -1; 598 static int hf_nas_5gs_access_tech_o2_b3 = -1; 599 static int hf_nas_5gs_access_tech_o2_b2 = -1; 600 static int hf_nas_5gs_single_port_type = -1; 601 static int hf_nas_5gs_port_range_type_low = -1; 602 static int hf_nas_5gs_port_range_type_high = -1; 603 static int hf_nas_5gs_sec_param_idx = -1; 604 static int hf_nas_5gs_tos_tc_val = -1; 605 static int hf_nas_5gs_tos_tc_mask = -1; 606 static int hf_nas_5gs_flow_label = -1; 607 static int hf_nas_5gs_mac_addr = -1; 608 static int hf_nas_5gs_vlan_tag_vid = -1; 609 static int hf_nas_5gs_vlan_tag_pcp = -1; 610 static int hf_nas_5gs_vlan_tag_dei = -1; 611 static int hf_nas_5gs_ethertype = -1; 612 static int hf_nas_5gs_updp_ue_pol_sect_sublst_len = -1; 613 static int hf_nas_5gs_updp_ue_pol_sect_subresult_len = -1; 614 static int hf_nas_5gs_updp_instr_len = -1; 615 static int hf_nas_5gs_updp_upsc = -1; 616 static int hf_nas_5gs_updp_failed_instruction_order = -1; 617 static int hf_nas_5gs_updp_policy_len = -1; 618 static int hf_nas_5gs_updp_ue_policy_part_type = -1; 619 static int hf_nas_5gs_updp_ue_policy_part_cont = -1; 620 static int hf_nas_5gs_ursp_rule_len = -1; 621 static int hf_nas_5gs_ursp_rule_prec = -1; 622 static int hf_nas_5gs_ursp_traff_desc_lst_len = -1; 623 static int hf_nas_5gs_ursp_traff_desc = -1; 624 static int hf_nas_5gs_ursp_r_sel_desc_lst_len = -1; 625 static int hf_nas_5gs_ursp_r_sel_desc_lst = -1; 626 static int hf_nas_5gs_ursp_traff_desc_ipv4 = -1; 627 static int hf_nas_5gs_ursp_traff_desc_ipv4_mask = -1; 628 static int hf_nas_5gs_ursp_traff_desc_next_hdr = -1; 629 static int hf_nas_5gs_ursp_traff_desc_len = -1; 630 static int hf_nas_5gs_ursp_r_sel_des_prec = -1; 631 static int hf_nas_5gs_ursp_r_sel_des_cont_len = -1; 632 static int hf_nas_5gs_ursp_ursp_r_sel_desc_comp_type = -1; 633 static int hf_nas_5gs_dnn_len = -1; 634 static int hf_nas_5gs_upsi_sublist_len = -1; 635 static int hf_nas_5gs_upsc = -1; 636 static int hf_nas_5gs_os_id = -1; 637 static int hf_nas_5gs_os_id_len = -1; 638 static int hf_nas_5gs_upds_cause = -1; 639 static int hf_nas_5gs_v2xuui = -1; 640 static int hf_nas_5gs_v2xpc5i = -1; 641 static int hf_nas_5gs_os_app_id_len = -1; 642 static int hf_nas_5gs_os_app_id = -1; 643 static int hf_nas_5gs_mm_len_of_rej_s_nssai = -1; 644 static int hf_nas_5gs_mm_rej_s_nssai_cause = -1; 645 static int hf_nas_5gs_mm_ue_radio_cap_id = -1; 646 static int hf_nas_5gs_mm_ue_radio_cap_id_del_req = -1; 647 static int hf_nas_5gs_mm_trunc_amf_set_id = -1; 648 static int hf_nas_5gs_mm_trunc_amf_pointer = -1; 649 static int hf_nas_5gs_mm_n5gcreg_b0 = -1; 650 static int hf_nas_5gs_mm_nb_n1_drx_value = -1; 651 static int hf_nas_5gs_mm_scmr = -1; 652 static int hf_nas_5gs_mm_extended_rejected_s_nssai_number_of_element = -1; 653 static int hf_nas_5gs_mm_extended_rejected_s_nssai_type_of_list = -1; 654 static int hf_nas_5gs_mm_extended_rejected_s_nssai_spare = -1; 655 static int hf_nas_5gs_mm_extended_rejected_s_nssai_back_off_timer = -1; 656 static int hf_nas_5gs_mm_len_of_rejected_s_nssai = -1; 657 static int hf_nas_5gs_mm_rejected_s_nssai_cause_value = -1; 658 659 static expert_field ei_nas_5gs_extraneous_data = EI_INIT; 660 static expert_field ei_nas_5gs_unknown_pd = EI_INIT; 661 static expert_field ei_nas_5gs_mm_unknown_msg_type = EI_INIT; 662 static expert_field ei_nas_5gs_sm_unknown_msg_type = EI_INIT; 663 static expert_field ei_nas_5gs_updp_unknown_msg_type = EI_INIT; 664 static expert_field ei_nas_5gs_msg_not_dis = EI_INIT; 665 static expert_field ei_nas_5gs_ie_not_dis = EI_INIT; 666 static expert_field ei_nas_5gs_missing_mandatory_element = EI_INIT; 667 static expert_field ei_nas_5gs_dnn_too_long = EI_INIT; 668 static expert_field ei_nas_5gs_unknown_value = EI_INIT; 669 static expert_field ei_nas_5gs_num_pkt_flt = EI_INIT; 670 static expert_field ei_nas_5gs_not_diss = EI_INIT; 671 672 #define NAS_5GS_PLAIN_NAS_MSG 0 673 #define NAS_5GS_INTEG_NAS_MSG 1 674 #define NAS_5GS_INTEG_CIPH_NAS_MSG 2 675 #define NAS_5GS_INTEG_NEW_NAS_MSG 3 676 #define NAS_5GS_INTEG_CIPH_NEW_NAS_MSG 4 677 678 static void dissect_nas_5gs_updp(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree, int offset); 679 680 static const value_string nas_5gs_security_header_type_vals[] = { 681 { NAS_5GS_PLAIN_NAS_MSG, "Plain NAS message, not security protected"}, 682 { NAS_5GS_INTEG_NAS_MSG, "Integrity protected"}, 683 { NAS_5GS_INTEG_CIPH_NAS_MSG, "Integrity protected and ciphered"}, 684 { NAS_5GS_INTEG_NEW_NAS_MSG, "Integrity protected with new 5GS security context"}, 685 { NAS_5GS_INTEG_CIPH_NEW_NAS_MSG, "Integrity protected and ciphered with new 5GS security context"}, 686 { 0, NULL } 687 }; 688 689 #define N1_SMINFO_FROM_UE "n1SmInfoFromUe" 690 #define N1_SMINFO_TO_UE "n1SmInfoToUe" 691 #define UNKNOWN_N1_SMINFO "unknownN1SmInfo" 692 693 #define TGPP_PD_5GMM 0x7e 694 #define TGPP_PD_5GSM 0x2e 695 696 static const value_string nas_5gs_epd_vals[] = { 697 { 0x00, "Group call control" }, 698 { 0x01, "Broadcast call control" }, 699 { 0x02, "EPS session management messages" }, 700 { 0x03, "Call Control; call related SS messages" }, 701 { 0x04, "GPRS Transparent Transport Protocol (GTTP)" }, 702 { 0x05, "Mobility Management messages" }, 703 { 0x06, "Radio Resources Management messages" }, 704 { 0x07, "EPS mobility management messages" }, 705 { 0x08, "GPRS mobility management messages" }, 706 { 0x09, "SMS messages" }, 707 { 0x0a, "GPRS session management messages" }, 708 { 0x0b, "Non call related SS messages" }, 709 { 0x0c, "Location services specified in 3GPP TS 44.071" }, 710 { 0x0d, "Unknown" }, 711 /*{0x0e, "Reserved for extension of the PD to one octet length "},*/ 712 { 0x0f, "Tests procedures described in 3GPP TS 44.014, 3GPP TS 34.109 and 3GPP TS 36.509" }, 713 { TGPP_PD_5GSM, "5G session management messages" }, 714 { TGPP_PD_5GMM, "5G mobility management messages" }, 715 { 0, NULL } 716 }; 717 718 struct nas5gs_private_data { 719 guint32 payload_container_type; 720 }; 721 722 static struct nas5gs_private_data* 723 nas5gs_get_private_data(packet_info *pinfo) 724 { 725 struct nas5gs_private_data *nas5gs_data = (struct nas5gs_private_data*)p_get_proto_data(pinfo->pool, pinfo, proto_nas_5gs, pinfo->curr_layer_num); 726 if (!nas5gs_data) { 727 nas5gs_data = wmem_new0(pinfo->pool, struct nas5gs_private_data); 728 p_add_proto_data(pinfo->pool, pinfo, proto_nas_5gs, pinfo->curr_layer_num, nas5gs_data); 729 } 730 return nas5gs_data; 731 } 732 733 static guint32 734 get_ext_ambr_unit(guint32 unit, const char **unit_str) 735 { 736 guint32 mult; 737 738 if (unit == 0) { 739 mult = 1; 740 *unit_str = "Unit value 0, Illegal"; 741 return mult; 742 } 743 744 if (unit <= 0x05) { 745 mult = pow4(guint32, unit - 0x01); 746 *unit_str = "Kbps"; 747 } else if (unit <= 0x0a) { 748 mult = pow4(guint32, unit - 0x06); 749 *unit_str = "Mbps"; 750 } else if (unit <= 0x0f) { 751 mult = pow4(guint32, unit - 0x0b); 752 *unit_str = "Gbps"; 753 } else if (unit <= 0x14) { 754 mult = pow4(guint32, unit - 0x10); 755 *unit_str = "Tbps"; 756 } else if (unit <= 0x19) { 757 mult = pow4(guint32, unit - 0x15); 758 *unit_str = "Pbps"; 759 } else { 760 mult = 256; 761 *unit_str = "Pbps"; 762 } 763 return mult; 764 } 765 766 /* 767 * 9.11.3 5GS mobility management (5GMM) information elements 768 */ 769 770 /* 771 * 9.11.3.1 5GMM capability 772 */ 773 static guint16 774 de_nas_5gs_mm_5gmm_cap(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 775 guint32 offset, guint len, 776 gchar *add_string _U_, int string_len _U_) 777 { 778 guint32 curr_offset; 779 780 static int * const flags1[] = { 781 &hf_nas_5gs_mm_sgc_b7, 782 &hf_nas_5gs_mm_5g_iphc_cp_ciot_b6, 783 &hf_nas_5gs_mm_n3_data_b5, 784 &hf_nas_5gs_mm_5g_cp_ciot_b4, 785 &hf_nas_5gs_mm_restrict_ec_b3, 786 &hf_nas_5gs_mm_lpp_cap_b2, 787 &hf_nas_5gs_mm_ho_attach_b1, 788 &hf_nas_5gs_mm_s1_mode_b0, 789 NULL 790 }; 791 792 static int * const flags2[] = { 793 &hf_nas_5gs_mm_racs_b7, 794 &hf_nas_5gs_mm_nssaa_b6, 795 &hf_nas_5gs_mm_5g_lcs_b5, 796 &hf_nas_5gs_mm_v2xcnpc5_b4, 797 &hf_nas_5gs_mm_v2xcepc5_b3, 798 &hf_nas_5gs_mm_v2x_b2, 799 &hf_nas_5gs_mm_5g_up_ciot_b1, 800 &hf_nas_5gs_mm_5g_srvcc_b0, 801 NULL 802 }; 803 804 static int * const flags3[] = { 805 &hf_nas_5gs_spare_b7, 806 &hf_nas_5gs_spare_b6, 807 &hf_nas_5gs_spare_b5, 808 &hf_nas_5gs_spare_b4, 809 &hf_nas_5gs_mm_5g_ehc_cp_ciot_b3, 810 &hf_nas_5gs_mm_multiple_up_b2, 811 &hf_nas_5gs_mm_wsusa_b1, 812 &hf_nas_5gs_mm_cag_b0, 813 NULL 814 }; 815 curr_offset = offset; 816 817 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, flags1, ENC_BIG_ENDIAN); 818 curr_offset++; 819 820 if ((curr_offset - offset) >= len) 821 return (len); 822 823 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, flags2, ENC_BIG_ENDIAN); 824 curr_offset++; 825 826 if ((curr_offset - offset) >= len) 827 return (len); 828 829 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, flags3, ENC_BIG_ENDIAN); 830 curr_offset++; 831 832 EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_nas_5gs_extraneous_data); 833 834 return (curr_offset - offset); 835 } 836 837 /* 838 * 9.11.3.2 5GMM cause 839 */ 840 841 static const value_string nas_5gs_mm_cause_vals[] = { 842 { 0x03, "Illegal UE" }, 843 { 0x05, "PEI not accepted" }, 844 { 0x06, "Illegal ME" }, 845 { 0x07, "5GS services not allowed" }, 846 { 0x09, "UE identity cannot be derived by the network" }, 847 { 0x0a, "Implicitly deregistered" }, 848 { 0x0b, "PLMN not allowed" }, 849 { 0x0c, "Tracking area not allowed" }, 850 { 0x0d, "Roaming not allowed in this tracking area" }, 851 { 0x0f, "No suitable cells in tracking area" }, 852 { 0x14, "MAC failure" }, 853 { 0x15, "Synch failure" }, 854 { 0x16, "Congestion" }, 855 { 0x17, "UE security capabilities mismatch" }, 856 { 0x18, "Security mode rejected, unspecified" }, 857 { 0x1a, "Non-5G authentication unacceptable" }, 858 { 0x1b, "N1 mode not allowed" }, 859 { 0x1c, "Restricted service area" }, 860 { 0x1f, "Redirection to EPC required" }, 861 { 0x2b, "LADN not available" }, 862 { 0x3e, "No network slices available" }, 863 { 0x41, "Maximum number of PDU sessions reached" }, 864 { 0x43, "Insufficient resources for specific slice and DNN" }, 865 { 0x45, "Insufficient resources for specific slice" }, 866 { 0x47, "ngKSI already in use" }, 867 { 0x48, "Non-3GPP access to 5GCN not allowed" }, 868 { 0x49, "Serving network not authorized" }, 869 { 0x4a, "Temporarily not authorized for this SNPN" }, 870 { 0x4b, "Permanently not authorized for this SNPN" }, 871 { 0x4c, "Not authorized for this CAG or authorized for CAG cells only" }, 872 { 0x4d, "Wireline access area not allowed" }, 873 { 0x5a, "Payload was not forwarded" }, 874 { 0x5b, "DNN not supported or not subscribed in the slice" }, 875 { 0x5c, "Insufficient user-plane resources for the PDU session" }, 876 { 0x5f, "Semantically incorrect message" }, 877 { 0x60, "Invalid mandatory information" }, 878 { 0x61, "Message type non-existent or not implemented" }, 879 { 0x62, "Message type not compatible with the protocol state" }, 880 { 0x63, "Information element non-existent or not implemented" }, 881 { 0x64, "Conditional IE error" }, 882 { 0x65, "Message not compatible with the protocol state" }, 883 { 0x6f, "Protocol error, unspecified" }, 884 { 0, NULL } 885 }; 886 887 static guint16 888 de_nas_5gs_mm_5gmm_cause(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 889 guint32 offset, guint len _U_, 890 gchar *add_string _U_, int string_len _U_) 891 { 892 guint32 cause; 893 894 proto_tree_add_item_ret_uint(tree, hf_nas_5gs_mm_5gmm_cause, tvb, offset, 1, ENC_BIG_ENDIAN, &cause); 895 896 col_append_fstr(pinfo->cinfo, COL_INFO, " (%s)", 897 val_to_str_const(cause, nas_5gs_mm_cause_vals, "Unknown")); 898 899 900 return 1; 901 } 902 903 904 static const value_string nas_5gs_mm_drx_vals[] = { 905 { 0x0, "DRX value not specified" }, 906 { 0x1, "DRX cycle parameter T = 32" }, 907 { 0x2, "DRX cycle parameter T = 64" }, 908 { 0x3, "DRX cycle parameter T = 128" }, 909 { 0x4, "DRX cycle parameter T = 256" }, 910 { 0, NULL } 911 }; 912 913 914 /* 9.11.3.2A 5GS DRX parameters*/ 915 static guint16 916 de_nas_5gs_mm_5gs_drx_param(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 917 guint32 offset, guint len _U_, 918 gchar *add_string _U_, int string_len _U_) 919 { 920 921 proto_tree_add_item(tree, hf_nas_5gs_mm_5gs_drx_param, tvb, offset, 1, ENC_BIG_ENDIAN); 922 923 return 1; 924 } 925 926 /* 927 * 9.11.3.3 5GS identity type 928 */ 929 static guint16 930 de_nas_5gs_mm_5gs_identity_type(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 931 guint32 offset, guint len _U_, 932 gchar *add_string _U_, int string_len _U_) 933 { 934 935 proto_tree_add_item(tree, hf_nas_5gs_mm_type_id, tvb, offset, 1, ENC_BIG_ENDIAN); 936 937 return 1; 938 } 939 940 /* 941 * 9.11.3.4 5GS mobile identity 942 */ 943 static const value_string nas_5gs_mm_type_id_vals[] = { 944 { 0x0, "No identity" }, 945 { 0x1, "SUCI" }, 946 { 0x2, "5G-GUTI" }, 947 { 0x3, "IMEI" }, 948 { 0x4, "5G-S-TMSI" }, 949 { 0x5, "IMEISV" }, 950 { 0x6, "MAC address" }, 951 { 0x7, "EUI-64" }, 952 { 0, NULL } 953 }; 954 955 static true_false_string nas_5gs_odd_even_tfs = { 956 "Odd number of identity digits", 957 "Even number of identity digits" 958 }; 959 960 static const value_string nas_5gs_mm_supi_fmt_vals[] = { 961 { 0x0, "IMSI" }, 962 { 0x1, "Network Specific Identifier" }, 963 { 0x2, "GCI" }, 964 { 0x3, "GLI" }, 965 { 0, NULL } 966 }; 967 968 static const value_string nas_5gs_mm_prot_scheme_id_vals[] = { 969 { 0x0, "NULL scheme" }, 970 { 0x1, "ECIES scheme profile A" }, 971 { 0x2, "ECIES scheme profile B" }, 972 { 0, NULL } 973 }; 974 975 static true_false_string nas_5gs_mauri_tfs = { 976 "MAC address is not usable as an equipment identifier", 977 "No restrictions" 978 }; 979 980 static guint16 981 de_nas_5gs_mm_5gs_mobile_id(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 982 guint32 offset, guint len, 983 gchar *add_string _U_, int string_len _U_) 984 { 985 guint8 oct, type_id, supi_fmt; 986 guint32 scheme_id, fiveg_tmsi; 987 tvbuff_t * new_tvb; 988 const char *route_id_str; 989 proto_item* ti; 990 991 static int * const flags_spare_tid[] = { 992 &hf_nas_5gs_spare_b7, 993 &hf_nas_5gs_spare_b6, 994 &hf_nas_5gs_spare_b5, 995 &hf_nas_5gs_spare_b4, 996 &hf_nas_5gs_spare_b3, 997 &hf_nas_5gs_mm_type_id, 998 NULL 999 }; 1000 1001 static int * const flags_supi_fmt_tid[] = { 1002 &hf_nas_5gs_spare_b7, 1003 &hf_nas_5gs_mm_supi_fmt, 1004 &hf_nas_5gs_spare_b3, 1005 &hf_nas_5gs_mm_type_id, 1006 NULL 1007 }; 1008 1009 static int * const flags_odd_even_tid[] = { 1010 &hf_nas_5gs_mm_odd_even, 1011 &hf_nas_5gs_mm_type_id, 1012 NULL 1013 }; 1014 1015 static int * const flags_mauri_tid[] = { 1016 &hf_nas_5gs_spare_b7, 1017 &hf_nas_5gs_spare_b6, 1018 &hf_nas_5gs_spare_b5, 1019 &hf_nas_5gs_spare_b4, 1020 &hf_nas_5gs_mm_mauri, 1021 &hf_nas_5gs_mm_type_id, 1022 NULL 1023 }; 1024 1025 oct = tvb_get_guint8(tvb, offset); 1026 type_id = oct & 0x07; 1027 1028 switch (type_id) { 1029 case 0: 1030 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags_spare_tid, ENC_BIG_ENDIAN); 1031 break; 1032 case 1: 1033 /* SUCI */ 1034 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags_supi_fmt_tid, ENC_BIG_ENDIAN); 1035 offset++; 1036 1037 supi_fmt = (oct & 0x70) >> 4; 1038 if (supi_fmt == 0) { 1039 /* IMSI */ 1040 1041 /* MCC digit 2 MCC digit 1 1042 * MNC digit 3 MCC digit 3 1043 * MNC digit 2 MNC digit 1 1044 */ 1045 offset = dissect_e212_mcc_mnc(tvb, pinfo, tree, offset, E212_NONE, TRUE); 1046 /* Routing indicator octet 8-9 */ 1047 new_tvb = tvb_new_subset_length(tvb, offset, 2); 1048 route_id_str = tvb_bcd_dig_to_str(pinfo->pool, new_tvb, 0, (tvb_get_guint8(new_tvb, 1) == 0xff) ? 1 : 2, NULL, FALSE); 1049 proto_tree_add_string(tree, hf_nas_5gs_mm_routing_indicator, new_tvb, 0, -1, route_id_str); 1050 offset += 2; 1051 /* Protection scheme id octet 10 */ 1052 proto_tree_add_item_ret_uint(tree, hf_nas_5gs_mm_prot_scheme_id, tvb, offset, 1, ENC_BIG_ENDIAN, &scheme_id); 1053 offset += 1; 1054 /* Home network public key identifier octet 11 */ 1055 proto_tree_add_item(tree, hf_nas_5gs_mm_pki, tvb, offset, 1, ENC_BIG_ENDIAN); 1056 offset += 1; 1057 /* Scheme output octet 12-x */ 1058 if (scheme_id == 0) { 1059 new_tvb = tvb_new_subset_length(tvb, offset, len - 8); 1060 proto_tree_add_item(tree, hf_nas_5gs_mm_suci_msin, new_tvb, 0, -1, ENC_BCD_DIGITS_0_9); 1061 } else { 1062 proto_item *pi = proto_tree_add_item(tree, hf_nas_5gs_mm_scheme_output, tvb, offset, len - 8, ENC_NA); 1063 if ((scheme_id == 1 && len >= 49) || (scheme_id == 2 && len >= 50)) { 1064 guint32 public_key_len; 1065 proto_tree *subtree = proto_item_add_subtree(pi, ett_nas_5gs_mm_scheme_output); 1066 if (scheme_id == 1) { 1067 public_key_len = 32; 1068 } else { 1069 public_key_len = 33; 1070 } 1071 proto_tree_add_item(subtree, hf_nas_5gs_mm_scheme_output_ecc_public_key, tvb, offset, public_key_len, ENC_NA); 1072 offset += public_key_len; 1073 proto_tree_add_item(subtree, hf_nas_5gs_mm_scheme_output_ciphertext, tvb, offset, len - public_key_len - 16, ENC_NA); 1074 offset += len - public_key_len - 16; 1075 proto_tree_add_item(subtree, hf_nas_5gs_mm_scheme_output_mac_tag, tvb, offset, 8, ENC_BIG_ENDIAN); 1076 } 1077 } 1078 } else if (supi_fmt == 1 ||supi_fmt == 2 ||supi_fmt == 3) { 1079 /* NAI */ 1080 proto_tree_add_item(tree, hf_nas_5gs_mm_suci_nai, tvb, offset, len - 1, ENC_UTF_8 | ENC_NA); 1081 } else { 1082 proto_tree_add_expert(tree, pinfo, &ei_nas_5gs_unknown_value, tvb, offset, len - 1); 1083 } 1084 break; 1085 case 2: 1086 /* 5G-GUTI*/ 1087 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags_spare_tid, ENC_BIG_ENDIAN); 1088 offset++; 1089 /* MCC digit 2 MCC digit 1 1090 * MNC digit 3 MCC digit 3 1091 * MNC digit 2 MNC digit 1 1092 */ 1093 offset = dissect_e212_mcc_mnc(tvb, pinfo, tree, offset, E212_GUAMI, TRUE); 1094 /* AMF Region ID octet 7 */ 1095 proto_tree_add_item(tree, hf_nas_5gs_amf_region_id, tvb, offset, 1, ENC_BIG_ENDIAN); 1096 offset += 1; 1097 /* AMF Set ID octet 8 */ 1098 proto_tree_add_item(tree, hf_nas_5gs_amf_set_id, tvb, offset, 2, ENC_BIG_ENDIAN); 1099 offset++; 1100 /* AMF AMF Pointer AMF Set ID (continued) */ 1101 proto_tree_add_item(tree, hf_nas_5gs_amf_pointer, tvb, offset, 1, ENC_BIG_ENDIAN); 1102 offset++; 1103 proto_tree_add_item_ret_uint(tree, hf_nas_5gs_5g_tmsi, tvb, offset, 4, ENC_BIG_ENDIAN, &fiveg_tmsi); 1104 ti = proto_tree_add_uint(tree, hf_3gpp_tmsi, tvb, offset, 4, fiveg_tmsi); 1105 proto_item_set_hidden(ti); 1106 break; 1107 case 3: 1108 /* IMEI */ 1109 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags_odd_even_tid, ENC_BIG_ENDIAN); 1110 proto_tree_add_item(tree, hf_nas_5gs_mm_imei, tvb, offset, len, ENC_BCD_DIGITS_0_9 | ENC_BCD_SKIP_FIRST); 1111 break; 1112 case 4: 1113 /*5G-S-TMSI*/ 1114 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags_odd_even_tid, ENC_BIG_ENDIAN); 1115 offset++; 1116 /* AMF Set ID */ 1117 proto_tree_add_item(tree, hf_nas_5gs_amf_set_id, tvb, offset, 2, ENC_BIG_ENDIAN); 1118 offset++; 1119 /* AMF Pointer AMF Set ID (continued) */ 1120 proto_tree_add_item(tree, hf_nas_5gs_amf_pointer, tvb, offset, 1, ENC_BIG_ENDIAN); 1121 offset++; 1122 proto_tree_add_item_ret_uint(tree, hf_nas_5gs_5g_tmsi, tvb, offset, 4, ENC_BIG_ENDIAN, &fiveg_tmsi); 1123 ti = proto_tree_add_uint(tree, hf_3gpp_tmsi, tvb, offset, 4, fiveg_tmsi); 1124 proto_item_set_hidden(ti); 1125 break; 1126 case 5: 1127 /* IMEISV */ 1128 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags_odd_even_tid, ENC_BIG_ENDIAN); 1129 /* XXXX Do we need the odd/even bit?*/ 1130 proto_tree_add_item(tree, hf_nas_5gs_mm_imeisv, tvb, offset, len, ENC_BCD_DIGITS_0_9 | ENC_BCD_SKIP_FIRST); 1131 break; 1132 case 6: 1133 /* MAC address */ 1134 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags_mauri_tid, ENC_BIG_ENDIAN); 1135 offset++; 1136 proto_tree_add_item(tree, hf_nas_5gs_mm_mac_addr, tvb, offset, 6, ENC_NA); 1137 break; 1138 case 7: 1139 /* EUI-64 */ 1140 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags_spare_tid, ENC_BIG_ENDIAN); 1141 offset++; 1142 proto_tree_add_item(tree, hf_nas_5gs_mm_eui_64, tvb, offset, 8, ENC_NA); 1143 break; 1144 1145 default: 1146 proto_tree_add_item(tree, hf_nas_5gs_mm_type_id, tvb, offset, 1, ENC_BIG_ENDIAN); 1147 proto_tree_add_expert(tree, pinfo, &ei_nas_5gs_unknown_value, tvb, offset, len); 1148 break; 1149 } 1150 1151 return len; 1152 } 1153 1154 /* 1155 * 9.11.3.5 5GS network feature support 1156 */ 1157 1158 static const value_string nas_5gs_nw_feat_sup_emc_values[] = { 1159 { 0x0, "Emergency services not supported" }, 1160 { 0x1, "Emergency services supported in NR connected to 5GCN only" }, 1161 { 0x2, "Emergency services supported in E-UTRA connected to 5GCN only" }, 1162 { 0x3, "Emergency services supported in NR connected to 5GCN and E-UTRA connected to 5GCN" }, 1163 { 0, NULL } 1164 }; 1165 1166 static const value_string nas_5gs_nw_feat_sup_emf_values[] = { 1167 { 0x0, "Emergency services fallback not supported" }, 1168 { 0x1, "Emergency services fallback supported in NR connected to 5GCN only" }, 1169 { 0x2, "Emergency services fallback supported in E-UTRA connected to 5GCN only" }, 1170 { 0x3, "Emergency services fallback supported in NR connected to 5GCN and E-UTRA connected to 5GCN" }, 1171 { 0, NULL } 1172 }; 1173 1174 static const true_false_string tfs_nas_5gs_nw_feat_sup_mpsi = { 1175 "Access identity 1 valid in RPLMN or equivalent PLMN", 1176 "Access identity 1 not valid in RPLMN or equivalent PLMN" 1177 }; 1178 1179 static const true_false_string tfs_nas_5gs_nw_feat_sup_mcsi = { 1180 "Access identity 2 valid", 1181 "Access identity 2 not valid" 1182 }; 1183 1184 static const value_string nas_5gs_nw_feat_sup_restrict_ec_values[] = { 1185 { 0x0, "WB-N1: Both CE mode A and CE mode B are not restricted / NB-N1: Use of enhanced coverage is not restricted" }, 1186 { 0x1, "WB-N1: Both CE mode A and CE mode B are restricted / NB-N1: Use of enhanced coverage is restricted" }, 1187 { 0x2, "WB-N1: CE mode B is restricted / NB-N1: Restricted" }, 1188 { 0x3, "Restricted" }, 1189 { 0, NULL } 1190 }; 1191 1192 static guint16 1193 de_nas_5gs_mm_5gs_nw_feat_sup(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 1194 guint32 offset, guint len, 1195 gchar *add_string _U_, int string_len _U_) 1196 { 1197 guint32 curr_offset = offset; 1198 1199 static int * const flags_oct3[] = { 1200 &hf_nas_5gs_nw_feat_sup_mpsi_b7, 1201 &hf_nas_5gs_nw_feat_sup_ims_iwk_n26_b6, 1202 &hf_nas_5gs_nw_feat_sup_ims_emf_b5b4, 1203 &hf_nas_5gs_nw_feat_sup_ims_emc_b3b2, 1204 &hf_nas_5gs_nw_feat_sup_ims_vops_n3gpp, 1205 &hf_nas_5gs_nw_feat_sup_ims_vops_3gpp, 1206 NULL 1207 }; 1208 1209 static int * const flags_oct4[] = { 1210 &hf_nas_5gs_nw_feat_sup_5g_ciot_up, 1211 &hf_nas_5gs_nw_feat_sup_5g_iphc_cp_ciot, 1212 &hf_nas_5gs_nw_feat_sup_n3_data, 1213 &hf_nas_5gs_nw_feat_sup_5g_cp_ciot, 1214 &hf_nas_5gs_nw_feat_sup_restrict_ec, 1215 &hf_nas_5gs_nw_feat_sup_mcsi, 1216 &hf_nas_5gs_nw_feat_sup_emcn3, 1217 NULL 1218 }; 1219 1220 static int * const flags_oct5[] = { 1221 &hf_nas_5gs_spare_b7, 1222 &hf_nas_5gs_spare_b6, 1223 &hf_nas_5gs_spare_b5, 1224 &hf_nas_5gs_spare_b4, 1225 &hf_nas_5gs_spare_b3, 1226 &hf_nas_5gs_nw_feat_sup_5g_ehc_cp_ciot, 1227 &hf_nas_5gs_nw_feat_sup_ats_ind, 1228 &hf_nas_5gs_nw_feat_sup_5g_lcs, 1229 NULL 1230 }; 1231 1232 /* MPSI IWK N26 EMF EMC IMS VoPS octet 3*/ 1233 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, flags_oct3, ENC_BIG_ENDIAN); 1234 curr_offset++; 1235 1236 if (len == 1) { 1237 return len; 1238 } 1239 1240 /* 5G-UP CIoT 5G-IPHC-CP CIoT N3 data 5G-CP CIoT RestrictEC MCSI EMCN3 octet 4*/ 1241 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, flags_oct4, ENC_BIG_ENDIAN); 1242 curr_offset++; 1243 1244 if (len == 2) { 1245 return len; 1246 } 1247 1248 /* spare spare spare spare spare 5G-EHC-CP CIoT ATS-IND 5G-LCS octet 5*/ 1249 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, flags_oct5, ENC_BIG_ENDIAN); 1250 curr_offset++; 1251 1252 EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_nas_5gs_extraneous_data); 1253 1254 return len; 1255 } 1256 1257 /* 1258 * 9.11.3.6 5GS registration result 1259 */ 1260 1261 static const value_string nas_5gs_mm_reg_res_values[] = { 1262 { 0x1, "3GPP access" }, 1263 { 0x2, "Non-3GPP access" }, 1264 { 0x3, "3GPP access and non-3GPP access" }, 1265 { 0, NULL } 1266 }; 1267 1268 static true_false_string tfs_nas_5gs_mm_reg_res_nssaa_perf = { 1269 "Network slice-specific authentication and authorization is to be performed", 1270 "Network slice-specific authentication and authorization is not to be performed" 1271 }; 1272 1273 static true_false_string tfs_nas_5gs_mm_reg_res_emergency_reg = { 1274 "Registered for emergency services", 1275 "Not registered for emergency services" 1276 }; 1277 1278 static guint16 1279 de_nas_5gs_mm_5gs_reg_res(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 1280 guint32 offset, guint len _U_, 1281 gchar *add_string _U_, int string_len _U_) 1282 { 1283 1284 static int* const flags[] = { 1285 &hf_nas_5gs_mm_reg_res_emergency_reg, 1286 &hf_nas_5gs_mm_reg_res_nssaa_perf, 1287 &hf_nas_5gs_mm_reg_res_sms_allowed, 1288 &hf_nas_5gs_mm_reg_res_res, 1289 NULL 1290 }; 1291 1292 /* 0 Spare 0 Spare 0 Spare NSSAA Performed SMS allowed 5GS registration result value */ 1293 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 1294 1295 return 1; 1296 } 1297 1298 /* 1299 * 9.11.3.7 5GS registration type 1300 */ 1301 1302 static const value_string nas_5gs_registration_type_values[] = { 1303 { 0x1, "initial registration" }, 1304 { 0x2, "mobility registration updating" }, 1305 { 0x3, "periodic registration updating" }, 1306 { 0x4, "emergency registration" }, 1307 { 0x7, "reserved" }, 1308 { 0, NULL } 1309 }; 1310 1311 static true_false_string nas_5gs_for_tfs = { 1312 "Follow-on request pending", 1313 "No follow-on request pending" 1314 }; 1315 1316 static int * const nas_5gs_registration_type_flags[] = { 1317 &hf_nas_5gs_mm_for, 1318 &hf_nas_5gs_mm_5gs_reg_type, 1319 NULL 1320 }; 1321 1322 static guint16 1323 de_nas_5gs_mm_5gs_reg_type(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 1324 guint32 offset, guint len _U_, 1325 gchar *add_string _U_, int string_len _U_) 1326 { 1327 1328 1329 1330 /* FOR SMS requested 5GS registration type value octet 3*/ 1331 proto_tree_add_bitmask_list(tree, tvb, offset, 1, nas_5gs_registration_type_flags, ENC_BIG_ENDIAN); 1332 1333 return 1; 1334 } 1335 1336 /* 1337 * 9.11.3.8 5GS tracking area identity 1338 */ 1339 static guint16 1340 de_nas_5gs_mm_5gs_ta_id(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 1341 guint32 offset, guint len _U_, 1342 gchar *add_string _U_, int string_len _U_) 1343 { 1344 /* MCC digit 2 MCC digit 1 Octet 2*/ 1345 /* MNC digit 3 MCC digit 3 Octet 3*/ 1346 /* MNC digit 2 MNC digit 1 Octet 4*/ 1347 /* TAC Octet 5 - 7 */ 1348 guint32 curr_offset; 1349 1350 curr_offset = offset; 1351 1352 curr_offset = dissect_e212_mcc_mnc(tvb, pinfo, tree, curr_offset, E212_5GSTAI, TRUE); 1353 proto_tree_add_item(tree, hf_nas_5gs_tac, tvb, curr_offset, 3, ENC_BIG_ENDIAN); 1354 curr_offset += 3; 1355 1356 return(curr_offset - offset); 1357 } 1358 1359 /* 1360 * 9.11.3.9 5GS tracking area identity list 1361 */ 1362 static const value_string nas_5gs_mm_tal_t_li_values[] = { 1363 { 0x00, "list of TACs belonging to one PLMN or SNPN, with non-consecutive TAC values" }, 1364 { 0x01, "list of TACs belonging to one PLMN or SNPN, with consecutive TAC values" }, 1365 { 0x02, "list of TAIs belonging to different PLMNs" }, 1366 { 0, NULL } }; 1367 1368 static const value_string nas_5gs_mm_tal_num_e[] = { 1369 { 0x00, "1 element" }, 1370 { 0x01, "2 elements" }, 1371 { 0x02, "3 elements" }, 1372 { 0x03, "4 elements" }, 1373 { 0x04, "5 elements" }, 1374 { 0x05, "6 elements" }, 1375 { 0x06, "7 elements" }, 1376 { 0x07, "8 elements" }, 1377 { 0x08, "9 elements" }, 1378 { 0x09, "10 elements" }, 1379 { 0x0a, "11 elements" }, 1380 { 0x0b, "12 elements" }, 1381 { 0x0c, "13 elements" }, 1382 { 0x0d, "14 elements" }, 1383 { 0x0e, "15 elements" }, 1384 { 0x0f, "16 elements" }, 1385 { 0, NULL } 1386 }; 1387 1388 static guint16 1389 de_nas_5gs_mm_5gs_ta_id_list(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 1390 guint32 offset, guint len, 1391 gchar *add_string _U_, int string_len _U_) 1392 { 1393 proto_tree *sub_tree; 1394 proto_item *item; 1395 1396 static int * const flags[] = { 1397 &hf_nas_5gs_mm_tal_t_li, 1398 &hf_nas_5gs_mm_tal_num_e, 1399 NULL 1400 }; 1401 1402 guint num_par_tal = 1; 1403 guint32 curr_offset = offset; 1404 guint32 start_offset; 1405 guint8 tal_head, tal_t_li, tal_num_e; 1406 1407 /*Partial tracking area list*/ 1408 while ((curr_offset - offset) < len) { 1409 start_offset = curr_offset; 1410 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, -1, ett_nas_5gs_mm_part_tal, &item, "Partial tracking area list %u", num_par_tal); 1411 /*Head of Partial tracking area list*/ 1412 /* Type of list Number of elements octet 1 */ 1413 tal_head = tvb_get_guint8(tvb, curr_offset); 1414 tal_t_li = (tal_head & 0x60) >> 5; 1415 tal_num_e = (tal_head & 0x1f) + 1; 1416 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset, 1, flags, ENC_BIG_ENDIAN); 1417 curr_offset++; 1418 switch (tal_t_li) { 1419 case 0: 1420 /*octet 2 MCC digit2 MCC digit1*/ 1421 /*octet 3 MNC digit3 MCC digit3*/ 1422 /*octet 4 MNC digit2 MNC digit1*/ 1423 dissect_e212_mcc_mnc(tvb, pinfo, sub_tree, curr_offset, E212_5GSTAI, TRUE); 1424 curr_offset += 3; 1425 while (tal_num_e > 0) { 1426 proto_tree_add_item(sub_tree, hf_nas_5gs_tac, tvb, curr_offset, 3, ENC_BIG_ENDIAN); 1427 curr_offset += 3; 1428 tal_num_e--; 1429 } 1430 break; 1431 case 1: 1432 /*octet 2 MCC digit2 MCC digit1*/ 1433 /*octet 3 MNC digit3 MCC digit3*/ 1434 /*octet 4 MNC digit2 MNC digit1*/ 1435 dissect_e212_mcc_mnc(tvb, pinfo, sub_tree, curr_offset, E212_5GSTAI, TRUE); 1436 curr_offset += 3; 1437 1438 /*octet 5 TAC 1*/ 1439 proto_tree_add_item(sub_tree, hf_nas_5gs_tac, tvb, curr_offset, 3, ENC_BIG_ENDIAN); 1440 curr_offset+=3; 1441 break; 1442 case 2: 1443 while (tal_num_e > 0) { 1444 /*octet 2 MCC digit2 MCC digit1*/ 1445 /*octet 3 MNC digit3 MCC digit3*/ 1446 /*octet 4 MNC digit2 MNC digit1*/ 1447 dissect_e212_mcc_mnc(tvb, pinfo, sub_tree, curr_offset, E212_5GSTAI, TRUE); 1448 curr_offset += 3; 1449 1450 /*octet 5 TAC 1*/ 1451 proto_tree_add_item(sub_tree, hf_nas_5gs_tac, tvb, curr_offset, 3, ENC_BIG_ENDIAN); 1452 curr_offset += 3; 1453 1454 tal_num_e--; 1455 } 1456 break; 1457 case 3: 1458 dissect_e212_mcc_mnc(tvb, pinfo, sub_tree, curr_offset, E212_5GSTAI, TRUE); 1459 curr_offset += 3; 1460 break; 1461 default: 1462 proto_tree_add_expert(sub_tree, pinfo, &ei_nas_5gs_unknown_value, tvb, curr_offset, len - 1); 1463 } 1464 1465 /*calculate the length of IE?*/ 1466 proto_item_set_len(item, curr_offset - start_offset); 1467 /*calculate the number of Partial tracking area list*/ 1468 num_par_tal++; 1469 } 1470 1471 return len; 1472 } 1473 1474 /* 1475 * 9.11.3.9A 5GS update type 1476 */ 1477 static const value_string nas_5gs_mm_5gs_pnb_ciot_values[] = { 1478 { 0x0, "no additional information" }, 1479 { 0x1, "control plane CIoT 5GS optimization" }, 1480 { 0x2, "user plane CIoT 5GS optimization" }, 1481 { 0x3, "reserved" }, 1482 { 0, NULL } 1483 }; 1484 1485 static const value_string nas_5gs_mm_eps_pnb_ciot_values[] = { 1486 { 0x0, "no additional information" }, 1487 { 0x1, "control plane CIoT EPS optimization" }, 1488 { 0x2, "user plane CIoT EPS optimization" }, 1489 { 0x3, "reserved" }, 1490 { 0, NULL } 1491 }; 1492 1493 static guint16 1494 de_nas_5gs_mm_update_type(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 1495 guint32 offset, guint len _U_, 1496 gchar *add_string _U_, int string_len _U_) 1497 { 1498 static int * const flags[] = { 1499 &hf_nas_5gs_spare_b7, 1500 &hf_nas_5gs_spare_b6, 1501 &hf_nas_5gs_mm_eps_pnb_ciot, 1502 &hf_nas_5gs_mm_5gs_pnb_ciot, 1503 &hf_nas_5gs_mm_ng_ran_rcu, 1504 &hf_nas_5gs_mm_sms_requested, 1505 NULL 1506 }; 1507 1508 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 1509 1510 return 1; 1511 1512 } 1513 1514 /* 1515 * 9.11.3.10 ABBA 1516 */ 1517 static guint16 1518 de_nas_5gs_mm_abba(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 1519 guint32 offset, guint len, 1520 gchar *add_string _U_, int string_len _U_) 1521 { 1522 proto_tree_add_item(tree, hf_nas_5gs_mm_abba, tvb, offset, len, ENC_NA); 1523 1524 return len; 1525 } 1526 1527 /* 1528 * 9.11.3.11 Void 1529 */ 1530 1531 /* 1532 * 9.11.3.12 Additional 5G security information 1533 */ 1534 static guint16 1535 de_nas_5gs_mm_add_5g_sec_inf(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 1536 guint32 offset, guint len _U_, 1537 gchar *add_string _U_, int string_len _U_) 1538 { 1539 static int * const flags[] = { 1540 &hf_nas_5gs_spare_b7, 1541 &hf_nas_5gs_spare_b6, 1542 &hf_nas_5gs_spare_b5, 1543 &hf_nas_5gs_spare_b4, 1544 &hf_nas_5gs_spare_b3, 1545 &hf_nas_5gs_spare_b2, 1546 &hf_nas_5gs_mm_rinmr, 1547 &hf_nas_5gs_mm_hdp, 1548 NULL 1549 }; 1550 1551 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 1552 1553 return 1; 1554 } 1555 1556 /* 1557 * 9.11.3.12A Additional information requested 1558 */ 1559 static guint16 1560 de_nas_5gs_mm_add_inf_req(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 1561 guint32 offset, guint len _U_, 1562 gchar* add_string _U_, int string_len _U_) 1563 { 1564 static int* const flags[] = { 1565 &hf_nas_5gs_spare_b7, 1566 &hf_nas_5gs_spare_b6, 1567 &hf_nas_5gs_spare_b5, 1568 &hf_nas_5gs_spare_b4, 1569 &hf_nas_5gs_spare_b3, 1570 &hf_nas_5gs_spare_b2, 1571 &hf_nas_5gs_spare_b1, 1572 &hf_nas_5gs_mm_cipher_key, 1573 NULL 1574 }; 1575 1576 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 1577 1578 return 1; 1579 } 1580 1581 /* 1582 * 9.11.3.13 Allowed PDU session status 1583 */ 1584 static true_false_string tfs_nas_5gs_allow_pdu_ses_sts_psi = { 1585 "user-plane resources of corresponding PDU session can be re-established over 3GPP access", 1586 "user-plane resources of corresponding PDU session is not allowed to be re-established over 3GPP access" 1587 }; 1588 1589 static guint16 1590 de_nas_5gs_mm_allow_pdu_ses_sts(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 1591 guint32 offset, guint len, 1592 gchar *add_string _U_, int string_len _U_) 1593 1594 { 1595 int curr_offset; 1596 1597 static int * const psi_0_7_flags[] = { 1598 &hf_nas_5gs_allow_pdu_ses_sts_psi_7_b7, 1599 &hf_nas_5gs_allow_pdu_ses_sts_psi_6_b6, 1600 &hf_nas_5gs_allow_pdu_ses_sts_psi_5_b5, 1601 &hf_nas_5gs_allow_pdu_ses_sts_psi_4_b4, 1602 &hf_nas_5gs_allow_pdu_ses_sts_psi_3_b3, 1603 &hf_nas_5gs_allow_pdu_ses_sts_psi_2_b2, 1604 &hf_nas_5gs_allow_pdu_ses_sts_psi_1_b1, 1605 &hf_nas_5gs_allow_pdu_ses_sts_psi_0_b0, 1606 NULL 1607 }; 1608 1609 static int * const psi_8_15_flags[] = { 1610 &hf_nas_5gs_allow_pdu_ses_sts_psi_15_b7, 1611 &hf_nas_5gs_allow_pdu_ses_sts_psi_14_b6, 1612 &hf_nas_5gs_allow_pdu_ses_sts_psi_13_b5, 1613 &hf_nas_5gs_allow_pdu_ses_sts_psi_12_b4, 1614 &hf_nas_5gs_allow_pdu_ses_sts_psi_11_b3, 1615 &hf_nas_5gs_allow_pdu_ses_sts_psi_10_b2, 1616 &hf_nas_5gs_allow_pdu_ses_sts_psi_9_b1, 1617 &hf_nas_5gs_allow_pdu_ses_sts_psi_8_b0, 1618 NULL 1619 }; 1620 1621 curr_offset = offset; 1622 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, psi_0_7_flags, ENC_BIG_ENDIAN); 1623 curr_offset++; 1624 1625 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, psi_8_15_flags, ENC_BIG_ENDIAN); 1626 curr_offset++; 1627 1628 EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_nas_5gs_extraneous_data); 1629 1630 return (curr_offset - offset); 1631 } 1632 1633 /* 1634 * 9.11.3.14 Authentication failure parameter 1635 */ 1636 /* See subclause 10.5.3.2.2 in 3GPP TS 24.008 */ 1637 1638 /* 1639 * 9.11.3.15 Authentication parameter AUTN 1640 */ 1641 /* See subclause 10.5.3.1 in 3GPP TS 24.008 */ 1642 1643 /* 1644 * 9.11.3.16 Authentication parameter RAND 1645 */ 1646 1647 /* See subclause 10.5.3.1 in 3GPP TS 24.008 */ 1648 1649 /* 1650 * 9.11.3.17 Authentication response parameter 1651 */ 1652 /* See subclause 9.9.3.4 in 3GPP TS 24.301 */ 1653 1654 /* 1655 * 9.11.3.18 Configuration update indication 1656 */ 1657 static guint16 1658 de_nas_5gs_mm_conf_upd_ind(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 1659 guint32 offset, guint len _U_, 1660 gchar *add_string _U_, int string_len _U_) 1661 { 1662 1663 static int * const flags[] = { 1664 &hf_nas_5gs_spare_b3, 1665 &hf_nas_5gs_spare_b2, 1666 &hf_nas_5gs_mm_conf_upd_ind_red_b1, 1667 &hf_nas_5gs_mm_conf_upd_ind_ack_b0, 1668 NULL 1669 }; 1670 1671 1672 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 1673 1674 return 1; 1675 } 1676 1677 /* 1678 * 9.11.3.18A CAG information list 1679 */ 1680 static true_false_string tfs_5gs_mm_cag_info_entry_cag_only = { 1681 "the UE is not allowed to access 5GS via non-CAG cells", 1682 "the UE is allowed to access 5GS via non-CAG cells" 1683 }; 1684 1685 static guint16 1686 de_nas_5gs_mm_cag_information_list(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo, 1687 guint32 offset, guint len, 1688 gchar* add_string _U_, int string_len _U_) 1689 { 1690 proto_tree *sub_tree; 1691 proto_item *item; 1692 guint num_entry = 1; 1693 guint32 curr_offset = offset; 1694 guint32 start_offset, entry_len; 1695 1696 while ((curr_offset - offset) < len) { 1697 start_offset = curr_offset; 1698 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, -1, ett_nas_5gs_mm_cag_info_entry, 1699 &item, "CAG information entry %u", num_entry); 1700 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_mm_cag_info_entry_len, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &entry_len); 1701 curr_offset++; 1702 dissect_e212_mcc_mnc(tvb, pinfo, sub_tree, curr_offset, E212_NONE, TRUE); 1703 curr_offset += 3; 1704 proto_tree_add_bits_item(sub_tree, hf_nas_5gs_spare_bits, tvb, (curr_offset << 3), 7, ENC_BIG_ENDIAN); 1705 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_cag_info_entry_cag_only, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 1706 curr_offset++; 1707 while ((curr_offset - start_offset) < entry_len) { 1708 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_cag_info_entry_cag_id, tvb, curr_offset, 4, ENC_BIG_ENDIAN); 1709 curr_offset += 4; 1710 } 1711 proto_item_set_len(item, curr_offset - start_offset); 1712 num_entry++; 1713 } 1714 1715 return len; 1716 } 1717 1718 /* 1719 * 9.11.3.18B CIoT small data container 1720 */ 1721 static void 1722 nas_5gs_decode_user_data_cont(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo, 1723 guint32 offset, guint len, int hfindex) 1724 { 1725 proto_item *item; 1726 1727 item = proto_tree_add_item(tree, hfindex, tvb, offset, len, ENC_NA); 1728 if (g_nas_5gs_decode_user_data_container_as != DECODE_USER_DATA_AS_NONE) { 1729 tvbuff_t *user_data_cont_tvb; 1730 volatile dissector_handle_t handle; 1731 1732 user_data_cont_tvb = tvb_new_subset_length(tvb, offset, len); 1733 if (g_nas_5gs_decode_user_data_container_as == DECODE_USER_DATA_AS_IP) { 1734 guint8 first_byte = tvb_get_guint8(user_data_cont_tvb, 0); 1735 if (first_byte >= 0x45 && first_byte <= 0x4f && len > 20) 1736 handle = ipv4_handle; 1737 else if ((first_byte & 0xf0) == 0x60 && len > 40) 1738 handle = ipv6_handle; 1739 else 1740 handle = NULL; 1741 } else if (g_nas_5gs_decode_user_data_container_as == DECODE_USER_DATA_AS_NON_IP) { 1742 handle = non_ip_data_handle; 1743 } else { 1744 handle = ethernet_handle; 1745 } 1746 if (handle) { 1747 col_append_str(pinfo->cinfo, COL_PROTOCOL, "/"); 1748 col_set_fence(pinfo->cinfo, COL_PROTOCOL); 1749 col_append_str(pinfo->cinfo, COL_INFO, ", "); 1750 col_set_fence(pinfo->cinfo, COL_INFO); 1751 TRY { 1752 proto_tree *toptree = proto_tree_get_root(tree); 1753 call_dissector_only(handle, user_data_cont_tvb, pinfo, toptree, NULL); 1754 } CATCH_BOUNDS_ERRORS { 1755 /* Dissection exception: message was probably non IP and heuristic was too weak */ 1756 proto_tree *subtree = proto_item_add_subtree(item, ett_nas_5gs_user_data_cont); 1757 show_exception(user_data_cont_tvb, pinfo, subtree, EXCEPT_CODE, GET_MESSAGE); 1758 } ENDTRY 1759 } 1760 } 1761 } 1762 1763 static const value_string nas_5gs_mm_ciot_small_data_cont_data_type_values[] = { 1764 { 0x00, "Control plane user data" }, 1765 { 0x01, "SMS" }, 1766 { 0x02, "Location services message container" }, 1767 { 0, NULL } 1768 }; 1769 1770 static const value_string nas_5gs_mm_ciot_small_data_cont_ddx_values[] = { 1771 { 0x00, "No information available" }, 1772 { 0x01, "No further uplink and no further downlink data transmission subsequent to the uplink data transmission is expected" }, 1773 { 0x02, "Only a single downlink data transmission and no further uplink data transmission subsequent to the uplink data transmission is expected" }, 1774 { 0x03, "Reserved" }, 1775 { 0, NULL } 1776 }; 1777 1778 static guint16 1779 de_nas_5gs_mm_ciot_small_data_cont(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo, 1780 guint32 offset, guint len, 1781 gchar* add_string _U_, int string_len _U_) 1782 { 1783 guint32 curr_offset = offset; 1784 guint32 data_type, add_info_len; 1785 proto_tree *sub_tree; 1786 proto_item *item; 1787 1788 proto_tree_add_item_ret_uint(tree, hf_nas_5gs_mm_ciot_small_data_cont_data_type, 1789 tvb, curr_offset, 1, ENC_BIG_ENDIAN, &data_type); 1790 switch (data_type) { 1791 case 0: 1792 proto_tree_add_item(tree, hf_nas_5gs_mm_ciot_small_data_cont_ddx, 1793 tvb, curr_offset, 1, ENC_BIG_ENDIAN); 1794 proto_tree_add_item(tree, hf_nas_5gs_mm_ciot_small_data_cont_pdu_session_id, 1795 tvb, curr_offset, 1, ENC_BIG_ENDIAN); 1796 curr_offset++; 1797 nas_5gs_decode_user_data_cont(tvb, tree, pinfo, curr_offset, len - curr_offset, 1798 hf_nas_5gs_mm_ciot_small_data_cont_data_contents); 1799 break; 1800 case 1: 1801 proto_tree_add_bits_item(tree, hf_nas_5gs_spare_bits, tvb, 1802 (curr_offset << 3) + 3, 5, ENC_BIG_ENDIAN); 1803 curr_offset++; 1804 item = proto_tree_add_item(tree, hf_nas_5gs_mm_ciot_small_data_cont_data_contents, 1805 tvb, curr_offset, len - curr_offset, ENC_NA); 1806 if (gsm_a_dtap_handle) { 1807 sub_tree = proto_item_add_subtree(item, ett_nas_5gs_ciot_small_data_cont_data_contents); 1808 call_dissector(gsm_a_dtap_handle, tvb_new_subset_length(tvb, curr_offset, curr_offset - len), pinfo, sub_tree); 1809 } 1810 break; 1811 case 2: 1812 proto_tree_add_item(tree, hf_nas_5gs_mm_ciot_small_data_cont_ddx, 1813 tvb, curr_offset, 1, ENC_BIG_ENDIAN); 1814 proto_tree_add_bits_item(tree, hf_nas_5gs_spare_bits, tvb, 1815 (curr_offset << 3) + 5, 3, ENC_BIG_ENDIAN); 1816 curr_offset++; 1817 proto_tree_add_item_ret_uint(tree, hf_nas_5gs_mm_ciot_small_data_cont_add_info_len, 1818 tvb, curr_offset, 1, ENC_BIG_ENDIAN, &add_info_len); 1819 curr_offset++; 1820 if (add_info_len > 0) { 1821 proto_tree_add_item(tree, hf_nas_5gs_mm_ciot_small_data_cont_add_info, 1822 tvb, curr_offset, add_info_len, ENC_NA); 1823 curr_offset += add_info_len; 1824 } 1825 proto_tree_add_item(tree, hf_nas_5gs_mm_ciot_small_data_cont_data_contents, 1826 tvb, curr_offset, len - curr_offset, ENC_NA); 1827 break; 1828 default: 1829 proto_tree_add_expert(tree, pinfo, &ei_nas_5gs_unknown_value, tvb, curr_offset, len); 1830 break; 1831 } 1832 1833 return len; 1834 } 1835 1836 /* 1837 * 9.11.3.18C Ciphering key data 1838 */ 1839 static const true_false_string nas_5gs_applicable_not_applicable = { 1840 "Applicable", 1841 "Not applicable" 1842 }; 1843 1844 static guint16 1845 de_nas_5gs_mm_ciphering_key_data(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo, 1846 guint32 offset, guint len, 1847 gchar* add_string _U_, int string_len _U_) 1848 { 1849 guint32 saved_offset, curr_offset = offset, c0_len, pos_sib_len, tai_len, i = 1; 1850 guint8 oct; 1851 struct tm tm; 1852 nstime_t tv; 1853 proto_item *pi; 1854 proto_tree *sub_tree; 1855 1856 while ((curr_offset - offset) < len) { 1857 static int * const eutra_flags1[] = { 1858 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_1, 1859 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_2, 1860 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_3, 1861 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_4, 1862 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_5, 1863 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_6, 1864 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_7, 1865 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_1_8, 1866 NULL 1867 }; 1868 static int * const eutra_flags2[] = { 1869 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_1, 1870 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_2, 1871 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_3, 1872 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_4, 1873 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_5, 1874 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_6, 1875 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_7, 1876 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_8, 1877 NULL 1878 }; 1879 static int * const eutra_flags3[] = { 1880 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_9, 1881 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_10, 1882 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_11, 1883 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_12, 1884 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_13, 1885 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_14, 1886 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_15, 1887 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_16, 1888 NULL 1889 }; 1890 static int * const eutra_flags4[] = { 1891 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_17, 1892 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_18, 1893 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_19, 1894 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_20, 1895 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_21, 1896 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_22, 1897 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_23, 1898 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_24, 1899 NULL 1900 }; 1901 static int * const eutra_flags5[] = { 1902 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_2_25, 1903 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_3_1, 1904 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_4_1, 1905 &hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_type_5_1, 1906 &hf_nas_5gs_spare_b3, 1907 &hf_nas_5gs_spare_b2, 1908 &hf_nas_5gs_spare_b1, 1909 &hf_nas_5gs_spare_b0, 1910 NULL 1911 }; 1912 static int * const nr_flags1[] = { 1913 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_1, 1914 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_2, 1915 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_3, 1916 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_4, 1917 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_5, 1918 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_6, 1919 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_7, 1920 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_1_8, 1921 NULL 1922 }; 1923 static int * const nr_flags2[] = { 1924 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_1, 1925 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_2, 1926 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_3, 1927 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_4, 1928 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_5, 1929 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_6, 1930 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_7, 1931 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_8, 1932 NULL 1933 }; 1934 static int * const nr_flags3[] = { 1935 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_9, 1936 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_10, 1937 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_11, 1938 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_12, 1939 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_13, 1940 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_14, 1941 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_15, 1942 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_16, 1943 NULL 1944 }; 1945 static int * const nr_flags4[] = { 1946 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_17, 1947 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_18, 1948 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_19, 1949 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_20, 1950 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_21, 1951 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_22, 1952 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_2_23, 1953 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_3_1, 1954 NULL 1955 }; 1956 static int * const nr_flags5[] = { 1957 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_4_1, 1958 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_5_1, 1959 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_6_1, 1960 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_6_2, 1961 &hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_type_6_3, 1962 &hf_nas_5gs_spare_b2, 1963 &hf_nas_5gs_spare_b1, 1964 &hf_nas_5gs_spare_b0, 1965 NULL 1966 }; 1967 1968 saved_offset = curr_offset; 1969 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, -1, ett_nas_5gs_ciph_data_set, 1970 &pi, "Ciphering data set #%u", i++); 1971 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_ciph_key_data_ciphering_set_id, tvb, curr_offset, 2, ENC_BIG_ENDIAN); 1972 curr_offset += 2; 1973 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_ciph_key_data_ciphering_key, tvb, curr_offset, 16, ENC_NA); 1974 curr_offset += 16; 1975 proto_tree_add_bits_item(sub_tree, hf_nas_5gs_spare_bits, tvb, offset<<3, 3, ENC_BIG_ENDIAN); 1976 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_mm_ciph_key_data_c0_len, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &c0_len); 1977 curr_offset++; 1978 if (c0_len) { 1979 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_ciph_key_data_c0, tvb, curr_offset, c0_len, ENC_NA); 1980 curr_offset += c0_len; 1981 } 1982 proto_tree_add_bits_item(sub_tree, hf_nas_5gs_spare_bits, tvb, offset<<3, 4, ENC_BIG_ENDIAN); 1983 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_mm_ciph_key_data_eutra_pos_sib_len, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &pos_sib_len); 1984 curr_offset++; 1985 if (pos_sib_len > 0) { 1986 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset, 1, eutra_flags1, ENC_NA); 1987 if (pos_sib_len >= 2) 1988 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset + 1, 1, eutra_flags2, ENC_NA); 1989 if (pos_sib_len >= 3) 1990 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset + 2, 1, eutra_flags3, ENC_NA); 1991 if (pos_sib_len >= 4) 1992 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset + 3, 1, eutra_flags4, ENC_NA); 1993 if (pos_sib_len >= 5) 1994 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset + 4, 1, eutra_flags5, ENC_NA); 1995 curr_offset += pos_sib_len; 1996 } 1997 proto_tree_add_bits_item(sub_tree, hf_nas_5gs_spare_bits, tvb, offset<<3, 4, ENC_BIG_ENDIAN); 1998 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_mm_ciph_key_data_nr_pos_sib_len, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &pos_sib_len); 1999 curr_offset++; 2000 if (pos_sib_len > 0) { 2001 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset, 1, nr_flags1, ENC_NA); 2002 if (pos_sib_len >= 2) 2003 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset + 1, 1, nr_flags2, ENC_NA); 2004 if (pos_sib_len >= 3) 2005 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset + 2, 1, nr_flags3, ENC_NA); 2006 if (pos_sib_len >= 4) 2007 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset + 3, 1, nr_flags4, ENC_NA); 2008 if (pos_sib_len >= 5) 2009 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset + 4, 1, nr_flags5, ENC_NA); 2010 curr_offset += pos_sib_len; 2011 } 2012 tm.tm_wday = 0; 2013 tm.tm_yday = 0; 2014 tm.tm_isdst = -1; 2015 oct = tvb_get_guint8(tvb, curr_offset); 2016 tm.tm_year = (oct & 0x0f)*10 + ((oct & 0xf0) >> 4) + 100; 2017 oct = tvb_get_guint8(tvb, curr_offset+1); 2018 tm.tm_mon = (oct & 0x0f)*10 + ((oct & 0xf0) >> 4) - 1; 2019 oct = tvb_get_guint8(tvb, curr_offset+2); 2020 tm.tm_mday = (oct & 0x0f)*10 + ((oct & 0xf0) >> 4); 2021 oct = tvb_get_guint8(tvb, curr_offset+3); 2022 tm.tm_hour = (oct & 0x0f)*10 + ((oct & 0xf0) >> 4); 2023 oct = tvb_get_guint8(tvb, curr_offset+4); 2024 tm.tm_min = (oct & 0x0f)*10 + ((oct & 0xf0) >> 4); 2025 tm.tm_sec = 0; 2026 tv.secs = mktime(&tm); 2027 tv.nsecs = 0; 2028 proto_tree_add_time_format_value(sub_tree, hf_nas_5gs_mm_ciph_key_data_validity_start_time, tvb, curr_offset, 5, &tv, 2029 "%s", abs_time_to_str(pinfo->pool, &tv, ABSOLUTE_TIME_LOCAL, FALSE)); 2030 curr_offset += 5; 2031 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_ciph_key_data_validity_duration, tvb, curr_offset, 2, ENC_BIG_ENDIAN); 2032 curr_offset += 2; 2033 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_mm_ciph_key_data_tais_list_len, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &tai_len); 2034 curr_offset++; 2035 if (tai_len) { 2036 de_nas_5gs_mm_5gs_ta_id_list(tvb, sub_tree, pinfo, curr_offset, tai_len, NULL, 0); 2037 curr_offset += tai_len; 2038 } 2039 proto_item_set_len(pi, curr_offset - saved_offset); 2040 } 2041 2042 return len; 2043 } 2044 2045 /* 2046 * 9.11.3.18D Control plane service type 2047 */ 2048 static const value_string nas_5gs_mm_ctrl_plane_serv_type_values[] = { 2049 { 0x00, "mobile originating request" }, 2050 { 0x01, "mobile terminating request" }, 2051 { 0x02, "emergency services" }, 2052 { 0x03, "emergency services fallback" }, 2053 { 0, NULL } 2054 }; 2055 2056 static guint16 2057 de_nas_5gs_mm_ctrl_plane_service_type(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 2058 guint32 offset, guint len, 2059 gchar* add_string _U_, int string_len _U_) 2060 { 2061 static int * const flags[] = { 2062 &hf_nas_5gs_spare_b3, 2063 &hf_nas_5gs_mm_ctrl_plane_serv_type, 2064 NULL 2065 }; 2066 2067 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_NA); 2068 2069 return len; 2070 } 2071 2072 /* 2073 * 9.11.3.19 Daylight saving time 2074 */ 2075 /* See subclause 10.5.3.12 in 3GPP TS 24.008 */ 2076 2077 /* 2078 * 9.11.3.20 De-registration type 2079 */ 2080 static const true_false_string nas_5gs_mm_switch_off_tfs = { 2081 "Switch off", 2082 "Normal de-registration" 2083 }; 2084 2085 static const true_false_string nas_5gs_mm_re_reg_req_tfs = { 2086 "re-registration required", 2087 "re-registration not required" 2088 }; 2089 2090 static const value_string nas_5gs_mm_acc_type_vals[] = { 2091 { 0x1, "3GPP access"}, 2092 { 0x2, "Non-3GPP access"}, 2093 { 0x3, "3GPP access and non-3GPP access"}, 2094 { 0, NULL } 2095 }; 2096 2097 static guint16 2098 de_nas_5gs_mm_de_reg_type(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 2099 guint32 offset, guint len _U_, 2100 gchar *add_string _U_, int string_len _U_) 2101 { 2102 /* Switch off Re-registration required Access type */ 2103 proto_tree_add_item(tree, hf_nas_5gs_mm_switch_off, tvb, offset, 1, ENC_BIG_ENDIAN); 2104 proto_tree_add_item(tree, hf_nas_5gs_mm_re_reg_req, tvb, offset, 1, ENC_BIG_ENDIAN); 2105 proto_tree_add_item(tree, hf_nas_5gs_mm_acc_type, tvb, offset, 1, ENC_BIG_ENDIAN); 2106 2107 return 1; 2108 } 2109 2110 /* 9.11.3.21 Void*/ 2111 /* 9.11.3.22 Void*/ 2112 2113 /* 2114 * 9.11.3.23 Emergency number list 2115 */ 2116 /* See subclause 10.5.3.13 in 3GPP TS 24.008 */ 2117 2118 /* 2119 * 9.11.3.24 EPS NAS message container 2120 */ 2121 static guint16 2122 de_nas_5gs_mm_eps_nas_msg_cont(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 2123 guint32 offset, guint len, 2124 gchar *add_string _U_, int string_len _U_) 2125 { 2126 /* an EPS NAS message as specified in 3GPP TS 24.301 */ 2127 if (nas_eps_handle) { 2128 col_append_str(pinfo->cinfo, COL_PROTOCOL, "/"); 2129 col_set_fence(pinfo->cinfo, COL_PROTOCOL); 2130 call_dissector(nas_eps_handle, tvb_new_subset_length(tvb, offset, len), pinfo, tree); 2131 } 2132 2133 return len; 2134 } 2135 2136 /* 2137 * 9.11.3.25 EPS NAS security algorithms 2138 */ 2139 /* See subclause 9.9.3.23 in 3GPP TS 24.301 */ 2140 2141 /* 2142 * 9.11.3.26 Extended emergency number list 2143 */ 2144 /* See subclause 9.9.3.37A in 3GPP TS 24.301 */ 2145 2146 /* 2147 * 9.11.3.26A Extended DRX parameters 2148 */ 2149 /* See subclause 10.5.5.32 in 3GPP TS 24.008 */ 2150 2151 /* 9.11.3.27 Void*/ 2152 2153 /* 2154 * 9.11.3.28 IMEISV request 2155 */ 2156 /* See subclause 10.5.5.10 in 3GPP TS 24.008 */ 2157 2158 /* 2159 * 9.11.3.29 LADN indication 2160 */ 2161 2162 static guint16 2163 de_nas_5gs_mm_ladn_indic(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 2164 guint32 offset, guint len, 2165 gchar *add_string _U_, int string_len _U_) 2166 { 2167 proto_tree *sub_tree; 2168 proto_item *item; 2169 int i = 1; 2170 guint32 length; 2171 guint32 curr_offset; 2172 2173 curr_offset = offset; 2174 2175 while ((curr_offset - offset) < len) { 2176 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, 2, ett_nas_5gs_mm_ladn_indic, &item, "LADN DNN value %u", i); 2177 /*LADN DNN value is coded as the length and value part of DNN information element as specified in subclause 9.11.2.1B starting with the second octet*/ 2178 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_mm_length, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &length); 2179 curr_offset++; 2180 curr_offset += de_nas_5gs_cmn_dnn(tvb, sub_tree, pinfo, curr_offset, length, NULL, 0); 2181 proto_item_set_len(item, length + 1); 2182 2183 i++; 2184 2185 } 2186 2187 return len; 2188 } 2189 2190 /* 2191 * 9.11.3.30 LADN information 2192 */ 2193 2194 static guint16 2195 de_nas_5gs_mm_ladn_inf(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 2196 guint32 offset, guint len, 2197 gchar *add_string _U_, int string_len _U_) 2198 { 2199 proto_tree *sub_tree; 2200 proto_item *item; 2201 int i = 1; 2202 guint32 length; 2203 guint32 curr_offset; 2204 2205 curr_offset = offset; 2206 2207 while ((curr_offset - offset) < len) { 2208 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, 2, ett_nas_5gs_mm_ladn_indic, &item, "LADN %u", i); 2209 /* DNN value (octet 5 to octet m): 2210 * LADN DNN value is coded as the length and value part of DNN information element as specified in 2211 * subclause 9.11.2.1B starting with the second octet 2212 */ 2213 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_mm_length, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &length); 2214 curr_offset++; 2215 curr_offset += de_nas_5gs_cmn_dnn(tvb, sub_tree, pinfo, curr_offset, length, NULL, 0); 2216 /* 5GS tracking area identity list (octet m+1 to octet a): 2217 * 5GS tracking area identity list field is coded as the length and the value part of the 2218 * 5GS Tracking area identity list information element as specified in subclause 9.11.3.9 2219 * starting with the second octet 2220 */ 2221 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_mm_length, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &length); 2222 curr_offset++; 2223 curr_offset += de_nas_5gs_mm_5gs_ta_id_list(tvb, sub_tree, pinfo, curr_offset, length, NULL, 0); 2224 2225 proto_item_set_len(item, curr_offset - offset); 2226 2227 i++; 2228 2229 } 2230 2231 return len; 2232 } 2233 2234 /* 2235 * 9.11.3.31 MICO indication 2236 */ 2237 static const true_false_string tfs_nas_5gs_raai = { 2238 "all PLMN registration area allocated", 2239 "all PLMN registration area not allocated" 2240 }; 2241 2242 static guint16 2243 de_nas_5gs_mm_mico_ind(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 2244 guint32 offset, guint len _U_, 2245 gchar *add_string _U_, int string_len _U_) 2246 { 2247 static int * const flags[] = { 2248 &hf_nas_5gs_spare_b3, 2249 &hf_nas_5gs_spare_b2, 2250 &hf_nas_5gs_mm_sprti_b1, 2251 &hf_nas_5gs_mm_raai_b0, 2252 NULL 2253 }; 2254 2255 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 2256 2257 return 1; 2258 } 2259 2260 /* 2261 * 9.11.3.31A MA PDU session information 2262 */ 2263 static const value_string nas_5gs_mm_ma_pdu_session_info_vals[] = { 2264 { 0x1, "MA PDU session network upgrade is allowed"}, 2265 { 0, NULL } 2266 }; 2267 2268 static guint16 2269 de_nas_5gs_mm_ma_pdu_ses_inf(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 2270 guint32 offset, guint len, 2271 gchar* add_string _U_, int string_len _U_) 2272 { 2273 proto_tree_add_item(tree, hf_nas_5gs_mm_ma_pdu_session_info_value, tvb, offset, 1, ENC_BIG_ENDIAN); 2274 2275 return len; 2276 } 2277 2278 /* 2279 * 9.11.3.31B Mapped NSSAI 2280 */ 2281 static const value_string nas_5gs_mm_sst_vals[] = { 2282 { 0x1, "eMBB"}, 2283 { 0x2, "URLLC"}, 2284 { 0x3, "MIoT"}, 2285 { 0x4, "V2X"}, 2286 { 0, NULL } 2287 }; 2288 2289 static guint16 2290 de_nas_5gs_mm_mapped_nssai(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 2291 guint32 offset, guint len, 2292 gchar* add_string _U_, int string_len _U_) 2293 { 2294 proto_tree* sub_tree; 2295 proto_item* item; 2296 guint num_items = 1; 2297 guint32 curr_offset = offset; 2298 guint32 start_offset, nssai_len; 2299 2300 /* Rejected NSSAI */ 2301 while ((curr_offset - offset) < len) { 2302 start_offset = curr_offset; 2303 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, -1, ett_nas_5gs_mm_mapped_nssai, 2304 &item, "Mapped S-NSSAI content %u", num_items); 2305 2306 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_mm_len_of_mapped_s_nssai, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &nssai_len); 2307 curr_offset++; 2308 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_sst, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 2309 curr_offset++; 2310 if (nssai_len > 1) { 2311 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_sd, tvb, curr_offset, 3, ENC_BIG_ENDIAN); 2312 curr_offset += 3; 2313 } 2314 proto_item_set_len(item, curr_offset - start_offset); 2315 } 2316 2317 return len; 2318 } 2319 2320 /* 2321 * 9.11.3.31C Mobile station classmark 2 2322 */ 2323 /* See subclause 10.5.1.6 in 3GPP TS 24.008 */ 2324 2325 /* 2326 * 9.11.3.32 NAS key set identifier 2327 */ 2328 static const true_false_string nas_5gs_mm_tsc_tfs = { 2329 "Mapped security context (for KSIASME)", 2330 "Native security context (for KSIAMF)" 2331 }; 2332 2333 static guint16 2334 de_nas_5gs_mm_nas_key_set_id(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 2335 guint32 offset, guint len _U_, 2336 gchar *add_string _U_, int string_len _U_) 2337 { 2338 static int * const flags[] = { 2339 &hf_nas_5gs_mm_tsc, 2340 &hf_nas_5gs_mm_nas_key_set_id, 2341 NULL 2342 }; 2343 2344 /* NAS key set identifier IEI TSC NAS key set identifier */ 2345 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 2346 2347 return 1; 2348 } 2349 2350 /* High nibble version (LEFT_NIBBLE) */ 2351 static guint16 2352 de_nas_5gs_mm_nas_key_set_id_h1(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 2353 guint32 offset, guint len _U_, 2354 gchar* add_string _U_, int string_len _U_) 2355 { 2356 static int* const flags[] = { 2357 &hf_nas_5gs_mm_tsc_h1, 2358 &hf_nas_5gs_mm_nas_key_set_id_h1, 2359 NULL 2360 }; 2361 2362 /* NAS key set identifier IEI TSC NAS key set identifier */ 2363 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 2364 2365 return 1; 2366 } 2367 2368 2369 /* 2370 * 9.11.3.33 NAS message container 2371 */ 2372 static guint16 2373 de_nas_5gs_mm_nas_msg_cont(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 2374 guint32 offset, guint len, 2375 gchar *add_string _U_, int string_len _U_) 2376 { 2377 /* The purpose of the NAS message container IE is to encapsulate a plain 5GS NAS message. */ 2378 /* a NAS message without NAS security heade */ 2379 2380 dissect_nas_5gs(tvb_new_subset_length(tvb, offset, len), pinfo, tree, NULL); 2381 2382 return len; 2383 } 2384 2385 /* 2386 * 9.11.3.34 NAS security algorithms 2387 */ 2388 2389 static const value_string nas_5gs_mm_type_of_ip_algo_vals[] = { 2390 { 0x0, "5G-IA0 (null integrity protection algorithm)"}, 2391 { 0x1, "128-5G-IA1"}, 2392 { 0x2, "128-5G-IA2"}, 2393 { 0x3, "128-5G-IA3"}, 2394 { 0x4, "5G-IA4"}, 2395 { 0x5, "5G-IA5"}, 2396 { 0x6, "5G-IA6"}, 2397 { 0x7, "5G-IA7"}, 2398 { 0, NULL } 2399 }; 2400 2401 static const value_string nas_5gs_mm_type_of_enc_algo_vals[] = { 2402 { 0x0, "5G-EA0 (null ciphering algorithm)"}, 2403 { 0x1, "128-5G-EA1"}, 2404 { 0x2, "128-5G-EA2"}, 2405 { 0x3, "128-5G-EA3"}, 2406 { 0x4, "5G-EA4"}, 2407 { 0x5, "5G-EA5"}, 2408 { 0x6, "5G-EA6"}, 2409 { 0x7, "5G-EA7"}, 2410 { 0, NULL } 2411 }; 2412 2413 static guint16 2414 de_nas_5gs_mm_nas_sec_algo(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 2415 guint32 offset, guint len _U_, 2416 gchar *add_string _U_, int string_len _U_) 2417 { 2418 2419 static int * const flags[] = { 2420 &hf_nas_5gs_mm_nas_sec_algo_enc, 2421 &hf_nas_5gs_mm_nas_sec_algo_ip, 2422 NULL 2423 }; 2424 2425 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 2426 2427 return 1; 2428 } 2429 2430 2431 /* 2432 * 9.11.3.35 Network name 2433 */ 2434 /* See subclause 10.5.3.5a in 3GPP TS 24.008 */ 2435 2436 2437 /* 2438 * 9.11.3.36 Network slicing indication 2439 */ 2440 2441 static const true_false_string nas_5gs_mm_dcni_tfs = { 2442 "Requested NSSAI created from default configured NSSAI", 2443 "Requested NSSAI not created from default configured NSSAI" 2444 }; 2445 2446 static guint16 2447 de_nas_5gs_mm_nw_slicing_ind(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 2448 guint32 offset, guint len, 2449 gchar *add_string _U_, int string_len _U_) 2450 { 2451 static int * const flags[] = { 2452 &hf_nas_5gs_spare_b3, 2453 &hf_nas_5gs_spare_b2, 2454 &hf_nas_5gs_mm_dcni, 2455 &hf_nas_5gs_mm_nssci, 2456 NULL 2457 }; 2458 2459 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 2460 2461 return len; 2462 } 2463 2464 /* 2465 * 9.11.3.37 NSSAI 2466 */ 2467 static guint16 2468 de_nas_5gs_mm_nssai(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 2469 guint32 offset, guint len, 2470 gchar *add_string _U_, int string_len _U_) 2471 { 2472 proto_tree *sub_tree; 2473 proto_item *item; 2474 int i = 1; 2475 guint32 length; 2476 guint32 curr_offset; 2477 2478 curr_offset = offset; 2479 2480 while ((curr_offset - offset) < len) { 2481 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, 2, ett_nas_5gs_mm_nssai, &item, "S-NSSAI %u", i); 2482 2483 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_mm_length, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &length); 2484 curr_offset++; 2485 curr_offset += de_nas_5gs_cmn_s_nssai(tvb, sub_tree, pinfo, curr_offset, length, NULL, 0); 2486 proto_item_set_len(item, length + 1); 2487 i++; 2488 2489 } 2490 2491 return len; 2492 } 2493 2494 /* 2495 * 9.11.3.37A NSSAI inclusion mode 2496 */ 2497 2498 2499 static const value_string nas_5gs_mm_nssai_inc_mode_vals[] = { 2500 { 0x00, "A" }, 2501 { 0x01, "B" }, 2502 { 0x02, "C" }, 2503 { 0x03, "D" }, 2504 { 0, NULL } }; 2505 2506 static guint16 2507 de_nas_5gs_mm_nssai_inc_mode(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 2508 guint32 offset, guint len, 2509 gchar *add_string _U_, int string_len _U_) 2510 { 2511 static int * const flags[] = { 2512 &hf_nas_5gs_spare_b3, 2513 &hf_nas_5gs_spare_b2, 2514 &hf_nas_5gs_mm_nssai_inc_mode, 2515 NULL 2516 }; 2517 2518 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 2519 2520 return len; 2521 } 2522 2523 /* 2524 * 9.11.3.38 Operator-defined access category definitions 2525 */ 2526 2527 static void 2528 nas_5gs_mm_access_cat_number(gchar *s, guint32 val) 2529 { 2530 snprintf(s, ITEM_LABEL_LENGTH, "%u (%u)", 32+val, val); 2531 } 2532 2533 static void 2534 nas_5gs_mm_access_standardized_cat_number(gchar *s, guint32 val) 2535 { 2536 if (val <= 7) 2537 snprintf(s, ITEM_LABEL_LENGTH, "%u", val); 2538 else 2539 snprintf(s, ITEM_LABEL_LENGTH, "Reserved (%u)", val); 2540 } 2541 2542 static const value_string nas_5gs_mm_op_def_access_cat_criteria_type_vals[] = { 2543 { 0, "DNN" }, 2544 { 1, "OS Id + OS App Id" }, 2545 { 2, "S-NSSAI" }, 2546 { 0, NULL } 2547 }; 2548 2549 static guint16 2550 de_nas_5gs_mm_op_def_acc_cat_def(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 2551 guint32 offset, guint len, 2552 gchar *add_string _U_, int string_len _U_) 2553 { 2554 proto_tree *sub_tree, *sub_tree2, *sub_tree3; 2555 proto_item *item, *item2, *item3; 2556 guint32 i = 1, j, k; 2557 guint32 length, criteria_length, criteria_type, criteria_count; 2558 guint32 curr_offset, saved_offset, saved_offset2, saved_offset3, criteria_offset; 2559 gboolean psac; 2560 2561 curr_offset = offset; 2562 2563 while ((curr_offset - offset) < len) { 2564 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, 4, ett_nas_5gs_mm_op_def_acc_cat_def, 2565 &item, "Operator-defined access category definition %u", i); 2566 2567 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_mm_op_def_access_cat_len, tvb, 2568 curr_offset, 1, ENC_BIG_ENDIAN, &length); 2569 curr_offset++; 2570 saved_offset = curr_offset; 2571 /* Precedence value */ 2572 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_op_def_access_cat_precedence, 2573 tvb, curr_offset, 1, ENC_BIG_ENDIAN); 2574 curr_offset++; 2575 /* PSAC 0 Spare 0 Spare Operator-defined access category number */ 2576 proto_tree_add_item_ret_boolean(sub_tree, hf_nas_5gs_mm_op_def_access_cat_psac, 2577 tvb, curr_offset, 1, ENC_BIG_ENDIAN, &psac); 2578 proto_tree_add_bits_item(sub_tree, hf_nas_5gs_spare_bits, tvb, 2579 (curr_offset << 3)+1, 2, ENC_BIG_ENDIAN); 2580 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_op_def_access_cat_number, 2581 tvb, curr_offset, 1, ENC_BIG_ENDIAN); 2582 curr_offset++; 2583 /* Length of criteria */ 2584 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_mm_op_def_access_cat_criteria_length, 2585 tvb, curr_offset, 1, ENC_BIG_ENDIAN, &criteria_length); 2586 curr_offset++; 2587 criteria_offset = curr_offset; 2588 j = 1; 2589 while ((curr_offset - criteria_offset) < criteria_length) { 2590 saved_offset2 = curr_offset; 2591 sub_tree2 = proto_tree_add_subtree_format(sub_tree, tvb, curr_offset, 1, ett_nas_5gs_mm_op_def_acc_cat_criteria_component, 2592 &item2, "Criteria component %u", j++); 2593 /* Criteria */ 2594 proto_tree_add_item_ret_uint(sub_tree2, hf_nas_5gs_mm_op_def_access_cat_criteria_type, 2595 tvb, curr_offset, 1, ENC_BIG_ENDIAN, &criteria_type); 2596 curr_offset++; 2597 switch (criteria_type) { 2598 case 0: 2599 proto_tree_add_item_ret_uint(sub_tree2, hf_nas_5gs_mm_op_def_access_cat_criteria_dnn_count, 2600 tvb, curr_offset, 1, ENC_BIG_ENDIAN, &criteria_count); 2601 curr_offset++; 2602 for (k = 1; k <= criteria_count; k++) { 2603 guint32 dnn_len; 2604 saved_offset3 = curr_offset; 2605 sub_tree3 = proto_tree_add_subtree_format(sub_tree2, tvb, curr_offset, -1, 2606 ett_nas_5gs_mm_op_def_acc_cat_criteria, &item3, "DNN %u", k); 2607 proto_tree_add_item_ret_uint(sub_tree3, hf_nas_5gs_mm_op_def_access_cat_criteria_dnn_len, 2608 tvb, curr_offset, 1, ENC_BIG_ENDIAN, &dnn_len); 2609 curr_offset++; 2610 de_nas_5gs_cmn_dnn(tvb, sub_tree3, pinfo, curr_offset, dnn_len, NULL, 0); 2611 curr_offset += dnn_len; 2612 proto_item_set_len(item3, curr_offset - saved_offset3); 2613 } 2614 break; 2615 case 1: 2616 proto_tree_add_item_ret_uint(sub_tree2, hf_nas_5gs_mm_op_def_access_cat_criteria_os_id_os_app_id_count, 2617 tvb, curr_offset, 1, ENC_BIG_ENDIAN, &criteria_count); 2618 curr_offset++; 2619 for (k = 1; k <= criteria_count; k++) { 2620 guint32 os_app_id_len; 2621 saved_offset3 = curr_offset; 2622 sub_tree3 = proto_tree_add_subtree_format(sub_tree2, tvb, curr_offset, -1, ett_nas_5gs_mm_op_def_acc_cat_criteria, 2623 &item3, "OS Id + Os App Id %u", k); 2624 proto_tree_add_item(sub_tree3, hf_nas_5gs_mm_op_def_access_cat_criteria_os_id, 2625 tvb, curr_offset, 16, ENC_NA); 2626 curr_offset += 16; 2627 proto_tree_add_item_ret_uint(sub_tree3, hf_nas_5gs_mm_op_def_access_cat_criteria_os_app_id_len, 2628 tvb, curr_offset, 1, ENC_BIG_ENDIAN, &os_app_id_len); 2629 curr_offset++; 2630 proto_tree_add_item(sub_tree3, hf_nas_5gs_mm_op_def_access_cat_criteria_os_app_id, 2631 tvb, curr_offset, os_app_id_len, ENC_NA); 2632 curr_offset += os_app_id_len; 2633 proto_item_set_len(item3, curr_offset - saved_offset3); 2634 } 2635 break; 2636 case 2: 2637 proto_tree_add_item_ret_uint(sub_tree2, hf_nas_5gs_mm_op_def_access_cat_criteria_s_nssai_count, 2638 tvb, curr_offset, 1, ENC_BIG_ENDIAN, &criteria_count); 2639 curr_offset++; 2640 for (k = 1; k <= criteria_count; k++) { 2641 guint32 s_nssai_len; 2642 saved_offset3 = curr_offset; 2643 sub_tree3 = proto_tree_add_subtree_format(sub_tree2, tvb, curr_offset, -1, 2644 ett_nas_5gs_mm_op_def_acc_cat_criteria, &item3, "S-NSSAI %u", k); 2645 proto_tree_add_item_ret_uint(sub_tree3, hf_nas_5gs_mm_op_def_access_cat_criteria_s_nssai_len, 2646 tvb, curr_offset, 1, ENC_BIG_ENDIAN, &s_nssai_len); 2647 curr_offset++; 2648 curr_offset += de_nas_5gs_cmn_s_nssai(tvb, sub_tree3, pinfo, curr_offset, s_nssai_len, NULL, 0); 2649 proto_item_set_len(item3, curr_offset - saved_offset3); 2650 } 2651 break; 2652 default: 2653 break; 2654 } 2655 proto_item_set_len(item2, curr_offset - saved_offset2); 2656 } 2657 if (psac) { 2658 /* 0 Spare 0 Spare 0 Spare Standardized access category */ 2659 proto_tree_add_bits_item(sub_tree, hf_nas_5gs_spare_bits, tvb, 2660 (curr_offset << 3), 3, ENC_BIG_ENDIAN); 2661 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_op_def_access_cat_standardized_number, 2662 tvb, curr_offset, 1, ENC_BIG_ENDIAN); 2663 } 2664 curr_offset = saved_offset + length; 2665 proto_item_set_len(item, length + 1); 2666 i++; 2667 } 2668 2669 return len; 2670 } 2671 2672 static const value_string nas_5gs_mm_pld_cont_opt_ie_type_vals[] = { 2673 { 0x12, "PDU session ID" }, 2674 { 0x22, "S-NSSAI" }, 2675 { 0x24, "Additional information" }, 2676 { 0x25, "DNN" }, 2677 { 0x37, "Back-off timer value" }, 2678 { 0x58, "5GMM cause" }, 2679 { 0x59, "Old PDU session ID" }, 2680 { 0x80, "Request type" }, 2681 { 0xa0, "MA PDU session information" }, 2682 { 0xf0, "Release assistance indication" }, 2683 { 0, NULL } 2684 }; 2685 2686 /* 2687 * 9.11.3.39 Payload container 2688 */ 2689 static guint16 2690 de_nas_5gs_mm_pld_cont(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 2691 guint32 offset, guint len, 2692 gchar *add_string _U_, int string_len _U_) 2693 { 2694 struct nas5gs_private_data *nas5gs_data = nas5gs_get_private_data(pinfo); 2695 2696 switch (nas5gs_data->payload_container_type) { 2697 case 1: /* N1 SM information */ 2698 dissect_nas_5gs_common(tvb_new_subset_length(tvb, offset, len), pinfo, tree, 0, NULL); 2699 break; 2700 case 2: /* SMS */ 2701 if (gsm_a_dtap_handle) { 2702 call_dissector(gsm_a_dtap_handle, tvb_new_subset_length(tvb, offset, len), pinfo, tree); 2703 } else { 2704 proto_tree_add_item(tree, hf_nas_5gs_mm_pld_cont, tvb, offset, len, ENC_NA); 2705 } 2706 break; 2707 case 3: /* LPP */ 2708 if (lpp_handle) { 2709 call_dissector(lpp_handle, tvb_new_subset_length(tvb, offset, len), pinfo, tree); 2710 } else { 2711 proto_tree_add_item(tree, hf_nas_5gs_mm_pld_cont, tvb, offset, len, ENC_NA); 2712 } 2713 break; 2714 case 5: /* UE policy container */ 2715 dissect_nas_5gs_updp(tvb_new_subset_length(tvb, offset, len), pinfo, tree, 0); 2716 break; 2717 case 8: /* CIoT user data container */ 2718 nas_5gs_decode_user_data_cont(tvb, tree, pinfo, offset, len, hf_nas_5gs_mm_pld_cont); 2719 break; 2720 case 15: /* multiple payloads */ 2721 { 2722 guint32 curr_offset, entry_offset, payloads_count, payload_len, opt_ies_count, payload_type; 2723 guint32 opt_ie_type, opt_ie_len, type_backup; 2724 guint i, j; 2725 2726 curr_offset = offset; 2727 proto_tree_add_item_ret_uint(tree, hf_nas_5gs_mm_pld_cont_nb_entries, tvb, curr_offset, 1, ENC_NA, &payloads_count); 2728 curr_offset++; 2729 for (i = 0; i < payloads_count; i++) { 2730 proto_item *item; 2731 proto_tree *subtree, *subtree2; 2732 2733 entry_offset = curr_offset; 2734 subtree = proto_tree_add_subtree_format(tree, tvb, curr_offset, -1, ett_nas_5gs_mm_pld_cont_pld_entry, &item, "Payload container entry %d", i + 1); 2735 proto_tree_add_item_ret_uint(subtree, hf_nas_5gs_mm_pld_cont_pld_cont_len, tvb, curr_offset, 2, ENC_BIG_ENDIAN, &payload_len); 2736 proto_item_set_len(item, payload_len + 2); 2737 curr_offset += 2; 2738 proto_tree_add_item_ret_uint(subtree, hf_nas_5gs_mm_pld_cont_nb_opt_ies, tvb, curr_offset, 1, ENC_NA, &opt_ies_count); 2739 proto_tree_add_item_ret_uint(subtree, hf_nas_5gs_mm_pld_cont_pld_cont_type, tvb, curr_offset, 1, ENC_NA, &payload_type); 2740 curr_offset++; 2741 for (j = 0; j < opt_ies_count; j++) { 2742 item = proto_tree_add_item_ret_uint(subtree, hf_nas_5gs_mm_pld_cont_opt_ie_type, tvb, curr_offset, 1, ENC_NA, &opt_ie_type); 2743 curr_offset++; 2744 subtree2 = proto_item_add_subtree(item, ett_nas_5gs_mm_pld_cont_opt_ie); 2745 proto_tree_add_item_ret_uint(subtree2, hf_nas_5gs_mm_pld_cont_opt_ie_len, tvb, curr_offset, 1, ENC_NA, &opt_ie_len); 2746 curr_offset++; 2747 switch (opt_ie_type) { 2748 case 0x12: 2749 de_nas_5gs_mm_pdu_ses_id_2(tvb, subtree2, pinfo, curr_offset, opt_ie_len, NULL, 0); 2750 break; 2751 case 0x22: 2752 de_nas_5gs_cmn_s_nssai(tvb, subtree2, pinfo, curr_offset, opt_ie_len, NULL, 0); 2753 break; 2754 case 0x24: 2755 de_nas_5gs_cmn_add_inf(tvb, subtree2, pinfo, curr_offset, opt_ie_len, NULL, 0); 2756 break; 2757 case 0x25: 2758 de_nas_5gs_cmn_dnn(tvb, subtree2, pinfo, curr_offset, opt_ie_len, NULL, 0); 2759 break; 2760 case 0x37: 2761 de_gc_timer3(tvb, subtree2, pinfo, curr_offset, opt_ie_len, NULL, 0); 2762 break; 2763 case 0x58: 2764 nas_5gs_mm_5gmm_status(tvb, subtree2, pinfo, curr_offset, opt_ie_len); 2765 break; 2766 case 0x59: 2767 de_nas_5gs_mm_pdu_ses_id_2(tvb, subtree2, pinfo, curr_offset, opt_ie_len, NULL, 0); 2768 break; 2769 case 0x80: 2770 de_nas_5gs_mm_req_type(tvb, subtree2, pinfo, curr_offset, opt_ie_len, NULL, 0); 2771 break; 2772 case 0xa0: 2773 de_nas_5gs_mm_ma_pdu_ses_inf(tvb, subtree2, pinfo, curr_offset, opt_ie_len, NULL, 0); 2774 break; 2775 case 0xf0: 2776 de_esm_rel_assist_ind(tvb, subtree2, pinfo, curr_offset, opt_ie_len, NULL, 0); 2777 break; 2778 default: 2779 proto_tree_add_item(subtree2, hf_nas_5gs_mm_pld_cont_opt_ie_val, tvb, curr_offset, opt_ie_len, ENC_NA); 2780 break; 2781 } 2782 curr_offset += opt_ie_len; 2783 } 2784 type_backup = nas5gs_data->payload_container_type; 2785 nas5gs_data->payload_container_type = payload_type; 2786 /* N.B. this recursive call can overwrite nas5gs_data->payload_container_type */ 2787 de_nas_5gs_mm_pld_cont(tvb, subtree, pinfo, curr_offset, payload_len - (curr_offset - entry_offset), NULL, 0); 2788 curr_offset = entry_offset + payload_len + 2; 2789 nas5gs_data->payload_container_type = type_backup; 2790 } 2791 } 2792 break; 2793 default: 2794 proto_tree_add_item(tree, hf_nas_5gs_mm_pld_cont, tvb, offset, len, ENC_NA); 2795 break; 2796 } 2797 2798 return len; 2799 } 2800 2801 /* 2802 * 9.11.3.40 Payload container type 2803 */ 2804 static const value_string nas_5gs_mm_pld_cont_type_vals[] = { 2805 { 0x01, "N1 SM information" }, 2806 { 0x02, "SMS" }, 2807 { 0x03, "LTE Positioning Protocol (LPP) message container" }, 2808 { 0x04, "SOR transparent container" }, 2809 { 0x05, "UE policy container" }, 2810 { 0x06, "UE parameters update transparent container" }, 2811 { 0x07, "Location services message container" }, 2812 { 0x08, "CIoT user data container" }, 2813 { 0x0f, "Multiple payloads" }, 2814 { 0, NULL } }; 2815 2816 static guint16 2817 de_nas_5gs_mm_pld_cont_type(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 2818 guint32 offset, guint len _U_, 2819 gchar *add_string _U_, int string_len _U_) 2820 { 2821 struct nas5gs_private_data *nas5gs_data = nas5gs_get_private_data(pinfo); 2822 2823 proto_tree_add_item_ret_uint(tree, hf_nas_5gs_mm_pld_cont_type, tvb, offset, 1, ENC_BIG_ENDIAN, &nas5gs_data->payload_container_type); 2824 2825 return 1; 2826 } 2827 2828 /* 2829 * 9.11.3.41 PDU session identity 2 2830 */ 2831 static guint16 2832 de_nas_5gs_mm_pdu_ses_id_2(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 2833 guint32 offset, guint len _U_, 2834 gchar *add_string _U_, int string_len _U_) 2835 { 2836 proto_tree_add_item(tree, hf_nas_5gs_pdu_session_id, tvb, offset, 1, ENC_BIG_ENDIAN); 2837 2838 return 1; 2839 } 2840 2841 /* 2842 * 9.11.3.42 PDU session reactivation result 2843 */ 2844 2845 2846 static true_false_string tfs_nas_5gs_pdu_ses_rect_res_psi = { 2847 "1", 2848 "0" 2849 }; 2850 2851 static guint16 2852 de_nas_5gs_mm_pdu_ses_react_res(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 2853 guint32 offset, guint len, 2854 gchar *add_string _U_, int string_len _U_) 2855 { 2856 int curr_offset; 2857 2858 static int * const psi_0_7_flags[] = { 2859 &hf_nas_5gs_pdu_ses_rect_res_psi_7_b7, 2860 &hf_nas_5gs_pdu_ses_rect_res_psi_6_b6, 2861 &hf_nas_5gs_pdu_ses_rect_res_psi_5_b5, 2862 &hf_nas_5gs_pdu_ses_rect_res_psi_4_b4, 2863 &hf_nas_5gs_pdu_ses_rect_res_psi_3_b3, 2864 &hf_nas_5gs_pdu_ses_rect_res_psi_2_b2, 2865 &hf_nas_5gs_pdu_ses_rect_res_psi_1_b1, 2866 &hf_nas_5gs_pdu_ses_rect_res_psi_0_b0, 2867 NULL 2868 }; 2869 2870 static int * const psi_8_15_flags[] = { 2871 &hf_nas_5gs_pdu_ses_rect_res_psi_15_b7, 2872 &hf_nas_5gs_pdu_ses_rect_res_psi_14_b6, 2873 &hf_nas_5gs_pdu_ses_rect_res_psi_13_b5, 2874 &hf_nas_5gs_pdu_ses_rect_res_psi_12_b4, 2875 &hf_nas_5gs_pdu_ses_rect_res_psi_11_b3, 2876 &hf_nas_5gs_pdu_ses_rect_res_psi_10_b2, 2877 &hf_nas_5gs_pdu_ses_rect_res_psi_9_b1, 2878 &hf_nas_5gs_pdu_ses_rect_res_psi_8_b0, 2879 NULL 2880 }; 2881 2882 curr_offset = offset; 2883 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, psi_0_7_flags, ENC_BIG_ENDIAN); 2884 curr_offset++; 2885 2886 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, psi_8_15_flags, ENC_BIG_ENDIAN); 2887 curr_offset++; 2888 2889 EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_nas_5gs_extraneous_data); 2890 2891 return (curr_offset - offset); 2892 2893 } 2894 2895 /* 2896 * 9.11.3.43 PDU session reactivation result error cause 2897 */ 2898 static guint16 2899 de_nas_5gs_mm_pdu_ses_react_res_err_c(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 2900 guint32 offset, guint len, 2901 gchar *add_string _U_, int string_len _U_) 2902 { 2903 guint32 curr_offset = offset; 2904 2905 /*Partial service area list*/ 2906 while ((curr_offset - offset) < len) { 2907 proto_tree_add_item(tree, hf_nas_5gs_pdu_session_id, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 2908 curr_offset++; 2909 proto_tree_add_item(tree, hf_nas_5gs_mm_5gmm_cause, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 2910 curr_offset++; 2911 } 2912 2913 return len; 2914 } 2915 2916 /* 2917 * 9.11.3.44 PDU session status 2918 */ 2919 2920 static true_false_string tfs_nas_5gs_pdu_ses_sts_psi = { 2921 "Not PDU SESSION INACTIVE", 2922 "PDU SESSION INACTIVE" 2923 }; 2924 2925 static guint16 2926 de_nas_5gs_mm_pdu_ses_status(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 2927 guint32 offset, guint len, 2928 gchar *add_string _U_, int string_len _U_) 2929 { 2930 int curr_offset; 2931 2932 static int * const psi_0_7_flags[] = { 2933 &hf_nas_5gs_pdu_ses_sts_psi_7_b7, 2934 &hf_nas_5gs_pdu_ses_sts_psi_6_b6, 2935 &hf_nas_5gs_pdu_ses_sts_psi_5_b5, 2936 &hf_nas_5gs_pdu_ses_sts_psi_4_b4, 2937 &hf_nas_5gs_pdu_ses_sts_psi_3_b3, 2938 &hf_nas_5gs_pdu_ses_sts_psi_2_b2, 2939 &hf_nas_5gs_pdu_ses_sts_psi_1_b1, 2940 &hf_nas_5gs_pdu_ses_sts_psi_0_b0, 2941 NULL 2942 }; 2943 2944 static int * const psi_8_15_flags[] = { 2945 &hf_nas_5gs_pdu_ses_sts_psi_15_b7, 2946 &hf_nas_5gs_pdu_ses_sts_psi_14_b6, 2947 &hf_nas_5gs_pdu_ses_sts_psi_13_b5, 2948 &hf_nas_5gs_pdu_ses_sts_psi_12_b4, 2949 &hf_nas_5gs_pdu_ses_sts_psi_11_b3, 2950 &hf_nas_5gs_pdu_ses_sts_psi_10_b2, 2951 &hf_nas_5gs_pdu_ses_sts_psi_9_b1, 2952 &hf_nas_5gs_pdu_ses_sts_psi_8_b0, 2953 NULL 2954 }; 2955 2956 curr_offset = offset; 2957 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, psi_0_7_flags, ENC_BIG_ENDIAN); 2958 curr_offset++; 2959 2960 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, psi_8_15_flags, ENC_BIG_ENDIAN); 2961 curr_offset++; 2962 2963 EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_nas_5gs_extraneous_data); 2964 2965 return (curr_offset - offset); 2966 2967 } 2968 2969 2970 /* 2971 * 9.11.3.45 PLMN list 2972 */ 2973 /* See subclause 10.5.1.13 in 3GPP TS 24.008 */ 2974 2975 /* 2976 * 9.11.3.46 Rejected NSSAI 2977 */ 2978 static const value_string nas_5gs_mm_rej_s_nssai_cause_vals[] = { 2979 { 0x00, "S-NSSAI not available in the current PLMN or SNPN" }, 2980 { 0x01, "S-NSSAI not available in the current registration area" }, 2981 { 0x02, "S-NSSAI not available due to the failed or revoked network slice-specific authentication and authorization" }, 2982 { 0, NULL } }; 2983 2984 static guint16 2985 de_nas_5gs_mm_rej_nssai(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 2986 guint32 offset, guint len, 2987 gchar *add_string _U_, int string_len _U_) 2988 { 2989 proto_tree* sub_tree; 2990 proto_item* item; 2991 guint num_items = 1; 2992 guint32 curr_offset = offset; 2993 guint32 start_offset, nssai_len; 2994 2995 /* Rejected NSSAI */ 2996 while ((curr_offset - offset) < len) { 2997 start_offset = curr_offset; 2998 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, -1, ett_nas_5gs_mm_rej_nssai, &item, "Rejected S-NSSAI %u", num_items); 2999 3000 /* Length of rejected S-NSSAI Cause value */ 3001 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_mm_len_of_rej_s_nssai, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &nssai_len); 3002 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_rej_s_nssai_cause, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 3003 curr_offset++; 3004 /* SST */ 3005 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_sst, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 3006 curr_offset += 1; 3007 if (nssai_len > 1) { 3008 /* SD octet 3 - octet 5* */ 3009 proto_tree_add_item(sub_tree, hf_nas_5gs_mm_sd, tvb, curr_offset, 3, ENC_BIG_ENDIAN); 3010 curr_offset += 3; 3011 } 3012 proto_item_set_len(item, curr_offset - start_offset); 3013 } 3014 3015 return len; 3016 } 3017 3018 /* 3019 * 9.11.3.46A Release assistance indication 3020 */ 3021 /* See subclause 9.9.4.25 in 3GPP TS 24.301 */ 3022 3023 /* 3024 * 9.11.3.47 Request type 3025 */ 3026 static const value_string nas_5gs_mm_req_type_vals[] = { 3027 { 0x01, "Initial request" }, 3028 { 0x02, "Existing PDU session" }, 3029 { 0x03, "Initial emergency request" }, 3030 { 0x04, "Existing emergency PDU session" }, 3031 { 0x05, "Modification request" }, 3032 { 0x06, "MA PDU request" }, 3033 { 0x07, "Reserved" }, 3034 { 0, NULL } }; 3035 3036 static guint16 3037 de_nas_5gs_mm_req_type(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 3038 guint32 offset, guint len _U_, 3039 gchar *add_string _U_, int string_len _U_) 3040 { 3041 3042 proto_tree_add_item(tree, hf_nas_5gs_mm_req_type, tvb, offset, 1, ENC_BIG_ENDIAN); 3043 3044 return 1; 3045 } 3046 3047 3048 /* 3049 * 9.11.3.48 S1 UE network capability 3050 */ 3051 /* See subclause 9.9.3.34 in 3GPP TS 24.301 */ 3052 3053 /* 3054 * 9.11.3.48A S1 UE security capability 3055 */ 3056 /*See subclause 9.9.3.36 in 3GPP TS 24.301 */ 3057 3058 /* 3059 * 9.11.3.49 Service area list 3060 */ 3061 static true_false_string tfs_nas_5gs_sal_al_t = { 3062 "TAIs in the list are in the non-allowed area", 3063 "TAIs in the list are in the allowed area" 3064 }; 3065 3066 static const value_string nas_5gs_mm_sal_t_li_values[] = { 3067 { 0x00, "list of TACs belonging to one PLMN, with non-consecutive TAC values" }, 3068 { 0x01, "list of TACs belonging to one PLMN, with consecutive TAC values" }, 3069 { 0x02, "list of TAIs belonging to different PLMNs" }, 3070 { 0x03, "All TAIs belonging to the PLMN are in the allowed area" }, 3071 { 0, NULL } }; 3072 3073 static const value_string nas_5gs_mm_sal_num_e_vals[] = { 3074 { 0x00, "1" }, 3075 { 0x01, "2" }, 3076 { 0x02, "3" }, 3077 { 0x03, "4" }, 3078 { 0x04, "5" }, 3079 { 0x05, "6" }, 3080 { 0x06, "7" }, 3081 { 0x07, "8" }, 3082 { 0x08, "9" }, 3083 { 0x09, "10" }, 3084 { 0x0a, "11" }, 3085 { 0x0b, "12" }, 3086 { 0x0c, "13" }, 3087 { 0x0d, "14" }, 3088 { 0x0e, "15" }, 3089 { 0x0f, "16" }, 3090 { 0, NULL } }; 3091 3092 3093 3094 static guint16 3095 de_nas_5gs_mm_sal(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 3096 guint32 offset, guint len, 3097 gchar *add_string _U_, int string_len _U_) 3098 { 3099 proto_tree *sub_tree; 3100 proto_item *item; 3101 3102 static int * const flags_sal[] = { 3103 &hf_nas_5gs_mm_sal_al_t, 3104 &hf_nas_5gs_mm_sal_t_li, 3105 &hf_nas_5gs_mm_sal_num_e, 3106 NULL 3107 }; 3108 3109 guint num_par_sal = 1; 3110 guint32 curr_offset = offset; 3111 guint32 start_offset; 3112 guint8 sal_head, sal_t_li, sal_num_e; 3113 3114 /*Partial service area list*/ 3115 while ((curr_offset - offset) < len) { 3116 start_offset = curr_offset; 3117 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, -1, ett_nas_5gs_mm_part_sal, &item, "Partial service area list %u", num_par_sal); 3118 /*Head of Partial service area list*/ 3119 /* Allowed type Type of list Number of elements octet 1 */ 3120 sal_head = tvb_get_guint8(tvb, curr_offset); 3121 sal_t_li = (sal_head & 0x60) >> 5; 3122 sal_num_e = (sal_head & 0x1f) + 1; 3123 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset, 1, flags_sal, ENC_BIG_ENDIAN); 3124 curr_offset++; 3125 switch (sal_t_li) { 3126 case 0: 3127 /*octet 2 MCC digit2 MCC digit1*/ 3128 /*octet 3 MNC digit3 MCC digit3*/ 3129 /*octet 4 MNC digit2 MNC digit1*/ 3130 dissect_e212_mcc_mnc(tvb, pinfo, sub_tree, curr_offset, E212_5GSTAI, TRUE); 3131 curr_offset += 3; 3132 while (sal_num_e > 0) { 3133 proto_tree_add_item(sub_tree, hf_nas_5gs_tac, tvb, curr_offset, 3, ENC_BIG_ENDIAN); 3134 curr_offset += 3; 3135 sal_num_e--; 3136 } 3137 break; 3138 case 1: 3139 /*octet 2 MCC digit2 MCC digit1*/ 3140 /*octet 3 MNC digit3 MCC digit3*/ 3141 /*octet 4 MNC digit2 MNC digit1*/ 3142 dissect_e212_mcc_mnc(tvb, pinfo, sub_tree, curr_offset, E212_5GSTAI, TRUE); 3143 curr_offset += 3; 3144 3145 /*octet 5 TAC 1*/ 3146 proto_tree_add_item(sub_tree, hf_nas_5gs_tac, tvb, curr_offset, 3, ENC_BIG_ENDIAN); 3147 curr_offset+=3; 3148 break; 3149 case 2: 3150 while (sal_num_e > 0) { 3151 /*octet 2 MCC digit2 MCC digit1*/ 3152 /*octet 3 MNC digit3 MCC digit3*/ 3153 /*octet 4 MNC digit2 MNC digit1*/ 3154 dissect_e212_mcc_mnc(tvb, pinfo, sub_tree, curr_offset, E212_5GSTAI, TRUE); 3155 curr_offset += 3; 3156 3157 /*octet 5 TAC 1*/ 3158 proto_tree_add_item(sub_tree, hf_nas_5gs_tac, tvb, curr_offset, 3, ENC_BIG_ENDIAN); 3159 curr_offset += 3; 3160 3161 sal_num_e--; 3162 } 3163 break; 3164 case 3: 3165 dissect_e212_mcc_mnc(tvb, pinfo, sub_tree, curr_offset, E212_5GSTAI, TRUE); 3166 curr_offset += 3; 3167 break; 3168 default: 3169 proto_tree_add_expert(sub_tree, pinfo, &ei_nas_5gs_unknown_value, tvb, curr_offset, len - 1); 3170 } 3171 3172 3173 3174 /*calculate the length of IE?*/ 3175 proto_item_set_len(item, curr_offset - start_offset); 3176 /*calculate the number of Partial service area list*/ 3177 num_par_sal++; 3178 } 3179 3180 return len; 3181 } 3182 3183 3184 /* 3185 * 9.11.3.50 Service type 3186 */ 3187 3188 /* Used inline as H1 (Upper nibble)*/ 3189 static const value_string nas_5gs_mm_serv_type_vals[] = { 3190 { 0x00, "Signalling" }, 3191 { 0x01, "Data" }, 3192 { 0x02, "Mobile terminated services" }, 3193 { 0x03, "Emergency services" }, 3194 { 0x04, "Emergency services fallback" }, 3195 { 0x05, "High priority access" }, 3196 { 0x06, "Elevated signalling" }, 3197 { 0, NULL } 3198 }; 3199 3200 static guint16 3201 de_nas_5gs_mm_serv_type(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 3202 guint32 offset, guint len, 3203 gchar* add_string _U_, int string_len _U_) 3204 { 3205 3206 proto_tree_add_item(tree, hf_nas_5gs_mm_serv_type, tvb, offset, 1, ENC_BIG_ENDIAN); 3207 3208 return len; 3209 } 3210 3211 /* 3212 * 9.11.3.50A SMS indication 3213 */ 3214 static guint16 3215 de_nas_5gs_mm_sms_ind(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 3216 guint32 offset, guint len, 3217 gchar *add_string _U_, int string_len _U_) 3218 { 3219 3220 static int * const flags[] = { 3221 &hf_nas_5gs_spare_b3, 3222 &hf_nas_5gs_spare_b2, 3223 &hf_nas_5gs_spare_b1, 3224 &hf_nas_5gs_mm_sms_indic_sai, 3225 NULL 3226 }; 3227 3228 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 3229 3230 return len; 3231 } 3232 3233 /* 3234 * 9.11.3.51 SOR transparent container 3235 */ 3236 static true_false_string tfs_nas_5gs_list_type = { 3237 "PLMN ID and access technology list", 3238 "Secured packet" 3239 }; 3240 3241 static true_false_string tfs_nas_5gs_list_ind = { 3242 "List of preferred PLMN/access technology combinations is provided", 3243 "No list of preferred PLMN/access technology combinations is provided" 3244 }; 3245 3246 static true_false_string tfs_nas_5gs_sor_data_type = { 3247 "Carries acknowledgement of successful reception of the steering of roaming information", 3248 "Carries steering of roaming information" 3249 }; 3250 3251 static guint16 3252 de_nas_5gs_mm_sor_transp_cont(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 3253 guint32 offset, guint len, 3254 gchar *add_string _U_, int string_len _U_) 3255 { 3256 /* Layout differs depending on SOR data type*/ 3257 static int * const flags_dt0[] = { 3258 &hf_nas_5gs_spare_b7, 3259 &hf_nas_5gs_spare_b6, 3260 &hf_nas_5gs_spare_b5, 3261 &hf_nas_5gs_spare_b4, 3262 &hf_nas_5gs_sor_hdr0_ack, 3263 &hf_nas_5gs_sor_hdr0_list_type, 3264 &hf_nas_5gs_sor_hdr0_list_ind, 3265 &hf_nas_5gs_sor_hdr0_sor_data_type, 3266 NULL 3267 }; 3268 3269 static int * const flags_dt1[] = { 3270 &hf_nas_5gs_spare_b7, 3271 &hf_nas_5gs_spare_b6, 3272 &hf_nas_5gs_spare_b5, 3273 &hf_nas_5gs_spare_b4, 3274 &hf_nas_5gs_spare_b3, 3275 &hf_nas_5gs_spare_b2, 3276 &hf_nas_5gs_spare_b1, 3277 &hf_nas_5gs_sor_hdr0_sor_data_type, 3278 NULL 3279 }; 3280 /* 3GPP TS 31.102 [22] subclause 4.2.5 */ 3281 static int * const flags_access_tech_1[] = { 3282 &hf_nas_5gs_access_tech_o1_b7, 3283 &hf_nas_5gs_access_tech_o1_b6, 3284 &hf_nas_5gs_access_tech_o1_b5, 3285 &hf_nas_5gs_access_tech_o1_b4, 3286 &hf_nas_5gs_access_tech_o1_b3, 3287 &hf_nas_5gs_rfu_b2, 3288 &hf_nas_5gs_rfu_b1, 3289 &hf_nas_5gs_rfu_b0, 3290 NULL 3291 }; 3292 3293 static int * const flags_access_tech_2[] = { 3294 &hf_nas_5gs_access_tech_o2_b7, 3295 &hf_nas_5gs_access_tech_o2_b6, 3296 &hf_nas_5gs_access_tech_o2_b5, 3297 &hf_nas_5gs_access_tech_o2_b4, 3298 &hf_nas_5gs_access_tech_o2_b3, 3299 &hf_nas_5gs_access_tech_o2_b2, 3300 &hf_nas_5gs_rfu_b1, 3301 &hf_nas_5gs_rfu_b0, 3302 NULL 3303 }; 3304 3305 proto_tree *sub_tree; 3306 3307 guint8 oct, data_type, list_type; 3308 guint32 curr_offset = offset; 3309 int i = 1; 3310 3311 oct = tvb_get_guint8(tvb, offset); 3312 data_type = oct & 0x01; 3313 if (data_type == 0) { 3314 /* SOR header octet 4*/ 3315 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, flags_dt0, ENC_BIG_ENDIAN); 3316 curr_offset++; 3317 list_type = (oct & 0x4) >> 2; 3318 /* SOR-MAC-IAUSF octet 5-20 */ 3319 proto_tree_add_item(tree, hf_nas_5gs_sor_mac_iausf, tvb, curr_offset, 16, ENC_NA); 3320 curr_offset += 16; 3321 /* CounterSOR octet 21-22 */ 3322 proto_tree_add_item(tree, hf_nas_5gs_counter_sor, tvb, curr_offset, 2, ENC_BIG_ENDIAN); 3323 curr_offset += 2; 3324 if (list_type == 0) { 3325 /* Secured packet octet 23* - 2048* */ 3326 proto_tree_add_item(tree, hf_nas_5gs_sor_sec_pkt, tvb, curr_offset, len - 19, ENC_NA); 3327 curr_offset = curr_offset + (len - 19); 3328 } else { 3329 /* PLMN ID and access technology list octet 23*-102* */ 3330 while ((curr_offset - offset) < len) { 3331 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, -1, ett_nas_5gs_mm_sor, NULL, "List item %u", i); 3332 /* The PLMN ID and access technology list consists of PLMN ID and access technology identifier 3333 * and are coded as specified in 3GPP TS 31.102 [22] subclause 4.2.5 3334 * PLMN 3335 * Contents: 3336 * - Mobile Country Code (MCC) followed by the Mobile Network Code (MNC). 3337 * Coding: 3338 * - according to TS 24.008 [9]. 3339 */ 3340 /* PLMN ID 1 octet 23*- 25* */ 3341 curr_offset = dissect_e212_mcc_mnc(tvb, pinfo, sub_tree, curr_offset, E212_NONE, TRUE); 3342 /* access technology identifier 1 octet 26*- 27* */ 3343 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, flags_access_tech_1, ENC_BIG_ENDIAN); 3344 curr_offset++; 3345 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, flags_access_tech_2, ENC_BIG_ENDIAN); 3346 curr_offset++; 3347 i++; 3348 } 3349 } 3350 3351 } else { 3352 /* SOR header octet 4*/ 3353 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, flags_dt1, ENC_BIG_ENDIAN); 3354 curr_offset++; 3355 /* SOR-MAC-IUE octet 5 - 20*/ 3356 proto_tree_add_item(tree, hf_nas_5gs_sor_mac_iue, tvb, curr_offset, 16, ENC_NA); 3357 curr_offset+=16; 3358 } 3359 3360 EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_nas_5gs_extraneous_data); 3361 3362 return (curr_offset - offset); 3363 3364 } 3365 3366 /* 3367 * 9.11.3.52 Time zone 3368 */ 3369 /* See subclause 10.5.3.8 in 3GPP TS 24.008 */ 3370 3371 /* 3372 * 9.11.3.53 Time zone and time 3373 */ 3374 /* See subclause 10.5.3.9 in 3GPP TS 24.00 */ 3375 3376 /* 3377 * 9.11.3.53A UE parameters update transparent container 3378 */ 3379 static guint16 3380 de_nas_5gs_mm_ue_par_upd_trasnsp_cont(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 3381 guint32 offset, guint len, 3382 gchar *add_string _U_, int string_len _U_) 3383 { 3384 proto_tree_add_expert(tree, pinfo, &ei_nas_5gs_ie_not_dis, tvb, offset, len); 3385 3386 return len; 3387 } 3388 3389 3390 /* 3391 * 9.11.3.54 UE security capability 3392 */ 3393 3394 static guint16 3395 de_nas_5gs_mm_ue_sec_cap(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 3396 guint32 offset, guint len, 3397 gchar *add_string _U_, int string_len _U_) 3398 { 3399 guint32 curr_offset; 3400 3401 static int * const oct3_flags[] = { 3402 &hf_nas_5gs_mm_5g_ea0, 3403 &hf_nas_5gs_mm_128_5g_ea1, 3404 &hf_nas_5gs_mm_128_5g_ea2, 3405 &hf_nas_5gs_mm_128_5g_ea3, 3406 &hf_nas_5gs_mm_5g_ea4, 3407 &hf_nas_5gs_mm_5g_ea5, 3408 &hf_nas_5gs_mm_5g_ea6, 3409 &hf_nas_5gs_mm_5g_ea7, 3410 NULL 3411 }; 3412 3413 static int * const oct4_flags[] = { 3414 &hf_nas_5gs_mm_5g_ia0, 3415 &hf_nas_5gs_mm_5g_128_ia1, 3416 &hf_nas_5gs_mm_5g_128_ia2, 3417 &hf_nas_5gs_mm_5g_128_ia3, 3418 &hf_nas_5gs_mm_5g_ia4, 3419 &hf_nas_5gs_mm_5g_ia5, 3420 &hf_nas_5gs_mm_5g_ia6, 3421 &hf_nas_5gs_mm_5g_ia7, 3422 NULL 3423 }; 3424 3425 static int * const oct5_flags[] = { 3426 &hf_nas_5gs_mm_eea0, 3427 &hf_nas_5gs_mm_128eea1, 3428 &hf_nas_5gs_mm_128eea2, 3429 &hf_nas_5gs_mm_eea3, 3430 &hf_nas_5gs_mm_eea4, 3431 &hf_nas_5gs_mm_eea5, 3432 &hf_nas_5gs_mm_eea6, 3433 &hf_nas_5gs_mm_eea7, 3434 NULL 3435 }; 3436 3437 static int * const oct6_flags[] = { 3438 &hf_nas_5gs_mm_eia0, 3439 &hf_nas_5gs_mm_128eia1, 3440 &hf_nas_5gs_mm_128eia2, 3441 &hf_nas_5gs_mm_eia3, 3442 &hf_nas_5gs_mm_eia4, 3443 &hf_nas_5gs_mm_eia5, 3444 &hf_nas_5gs_mm_eia6, 3445 &hf_nas_5gs_mm_eia7, 3446 NULL 3447 }; 3448 3449 curr_offset = offset; 3450 3451 3452 /* 5G-EA0 128-5G-EA1 128-5G-EA2 128-5G-EA3 5G-EA4 5G-EA5 5G-EA6 5G-EA7 octet 3 */ 3453 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, oct3_flags, ENC_NA); 3454 curr_offset++; 3455 3456 /* 5G-IA0 128-5G-IA1 128-5G-IA2 128-5G-IA3 5G-IA4 5G-IA5 5G-IA6 5G-IA7 octet 4 */ 3457 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, oct4_flags, ENC_NA); 3458 curr_offset++; 3459 3460 if (len == 2) { 3461 return len; 3462 } 3463 3464 /* EEA0 128-EEA1 128-EEA2 128-EEA3 EEA4 EEA5 EEA6 EEA7 octet 5 */ 3465 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, oct5_flags, ENC_NA); 3466 curr_offset++; 3467 3468 /* EIA0 128-EIA1 128-EIA2 128-EIA3 EIA4 EIA5 EIA6 EIA7 octet 6 */ 3469 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, oct6_flags, ENC_NA); 3470 3471 3472 return len; 3473 } 3474 3475 /* 3476 * 9.11.3.55 UE's usage setting 3477 */ 3478 static true_false_string tfs_nas_5gs_mm_ue_usage_setting = { 3479 "Data centric", 3480 "Voice centric" 3481 }; 3482 3483 static guint16 3484 de_nas_5gs_mm_ue_usage_set(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 3485 guint32 offset, guint len, 3486 gchar *add_string _U_, int string_len _U_) 3487 { 3488 static int * const flags[] = { 3489 &hf_nas_5gs_spare_b3, 3490 &hf_nas_5gs_spare_b2, 3491 &hf_nas_5gs_spare_b1, 3492 &hf_nas_5gs_mm_ue_usage_setting, 3493 NULL 3494 }; 3495 3496 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 3497 3498 return len; 3499 } 3500 3501 /* 3502 * 9.11.3.56 UE status 3503 */ 3504 3505 static true_false_string tfs_nas_5gs_mm_n1_mod = { 3506 "UE is in 5GMM-REGISTERED state", 3507 "UE is not in 5GMM-REGISTERED state" 3508 }; 3509 3510 static true_false_string tfs_nas_5gs_mm_s1_mod = { 3511 "UE is in EMM-REGISTERED state", 3512 "UE is not in EMM-REGISTERED state" 3513 }; 3514 3515 3516 3517 static guint16 3518 de_nas_5gs_mm_ue_status(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 3519 guint32 offset, guint len _U_, 3520 gchar *add_string _U_, int string_len _U_) 3521 { 3522 static int * const flags[] = { 3523 &hf_nas_5gs_spare_b7, 3524 &hf_nas_5gs_spare_b6, 3525 &hf_nas_5gs_spare_b5, 3526 &hf_nas_5gs_spare_b4, 3527 &hf_nas_5gs_spare_b3, 3528 &hf_nas_5gs_spare_b2, 3529 &hf_nas_5gs_mm_n1_mode_reg_b1, 3530 &hf_nas_5gs_mm_s1_mode_reg_b0, 3531 NULL 3532 }; 3533 3534 /* 0 Spare 0 Spare 0 Spare 0 Spare 0 Spare 0 Spare N1 mode S1 mode reg */ 3535 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 3536 3537 return 1; 3538 } 3539 3540 /* 3541 * 9.11.3.57 Uplink data status 3542 */ 3543 3544 static true_false_string tfs_nas_5gs_ul_data_sts_psi = { 3545 "uplink data are pending", 3546 "no uplink data are pending" 3547 }; 3548 3549 static guint16 3550 de_nas_5gs_mm_ul_data_status(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 3551 guint32 offset, guint len, 3552 gchar *add_string _U_, int string_len _U_) 3553 { 3554 int curr_offset; 3555 3556 static int * const psi_0_7_flags[] = { 3557 &hf_nas_5gs_ul_data_sts_psi_7_b7, 3558 &hf_nas_5gs_ul_data_sts_psi_6_b6, 3559 &hf_nas_5gs_ul_data_sts_psi_5_b5, 3560 &hf_nas_5gs_ul_data_sts_psi_4_b4, 3561 &hf_nas_5gs_ul_data_sts_psi_3_b3, 3562 &hf_nas_5gs_ul_data_sts_psi_2_b2, 3563 &hf_nas_5gs_ul_data_sts_psi_1_b1, 3564 &hf_nas_5gs_ul_data_sts_psi_0_b0, 3565 NULL 3566 }; 3567 3568 static int * const psi_8_15_flags[] = { 3569 &hf_nas_5gs_ul_data_sts_psi_15_b7, 3570 &hf_nas_5gs_ul_data_sts_psi_14_b6, 3571 &hf_nas_5gs_ul_data_sts_psi_13_b5, 3572 &hf_nas_5gs_ul_data_sts_psi_12_b4, 3573 &hf_nas_5gs_ul_data_sts_psi_11_b3, 3574 &hf_nas_5gs_ul_data_sts_psi_10_b2, 3575 &hf_nas_5gs_ul_data_sts_psi_9_b1, 3576 &hf_nas_5gs_ul_data_sts_psi_8_b0, 3577 NULL 3578 }; 3579 3580 curr_offset = offset; 3581 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, psi_0_7_flags, ENC_BIG_ENDIAN); 3582 curr_offset++; 3583 3584 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, psi_8_15_flags, ENC_BIG_ENDIAN); 3585 curr_offset++; 3586 3587 EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_nas_5gs_extraneous_data); 3588 3589 return (curr_offset - offset); 3590 } 3591 3592 /* 3593 * 9.11.3.58 Void 3594 * 9.11.3.59 Void 3595 * 9.11.3.60 Void 3596 * 9.11.3.61 Void 3597 * 9.11.3.62 Void 3598 * 9.11.3.63 Void 3599 * 9.11.3.64 Void 3600 * 9.11.3.65 Void 3601 * 9.11.3.66 Void 3602 * 9.11.3.67 Void 3603 */ 3604 3605 /* 3606 * 9.11.3.68 UE radio capability ID 3607 */ 3608 /* 3609 * The UE radio capability ID contents contain the UE radio capability ID as specified in 3GPP TS 23.003 3610 * with each digit coded in BCD, starting with the first digit coded in bits 4 to 1 of octet 3, 3611 * the second digit coded in bits 8 to 5 of octet 3, and so on. If the UE radio capability ID contains 3612 * an odd number of digits, bits 8 to 5 of the last octet (octet n) shall be coded as "1111". 3613 */ 3614 3615 guint16 3616 de_nas_5gs_mm_ue_radio_cap_id(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 3617 guint32 offset, guint len, 3618 gchar* add_string _U_, int string_len _U_) 3619 { 3620 int curr_offset; 3621 3622 curr_offset = offset; 3623 3624 proto_tree_add_item(tree, hf_nas_5gs_mm_ue_radio_cap_id, tvb, curr_offset, len, ENC_BCD_DIGITS_0_9); 3625 3626 return len; 3627 } 3628 3629 /* 3630 * 9.11.3.69 UE radio capability ID deletion indication 3631 */ 3632 static const value_string nas_5gs_mm_ue_radio_cap_id_del_req_vals[] = { 3633 { 0x0, "UE radio capability ID deletion not requested" }, 3634 { 0x1, "Network-assigned UE radio capability IDs deletion requested" }, 3635 { 0, NULL } 3636 }; 3637 3638 static guint16 3639 de_nas_5gs_mm_ue_radio_cap_id_del_ind(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 3640 guint32 offset, guint len, 3641 gchar* add_string _U_, int string_len _U_) 3642 { 3643 static int* const flags[] = { 3644 &hf_nas_5gs_spare_b3, 3645 &hf_nas_5gs_mm_ue_radio_cap_id_del_req, 3646 NULL 3647 }; 3648 3649 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 3650 3651 return len; 3652 } 3653 3654 /* 3655 * 9.11.3.70 Truncated 5G-S-TMSI configuration 3656 */ 3657 static const value_string nas_5gs_mm_amf_trunc_set_id_vals[] = { 3658 { 0x0, "reserved" }, 3659 { 0x1, "1 least significant bit of the AMF Set ID" }, 3660 { 0x2, "2 least significant bit of the AMF Set ID" }, 3661 { 0x3, "3 least significant bit of the AMF Set ID" }, 3662 { 0x4, "4 least significant bit of the AMF Set ID" }, 3663 { 0x5, "5 least significant bit of the AMF Set ID" }, 3664 { 0x6, "6 least significant bit of the AMF Set ID" }, 3665 { 0x7, "7 least significant bit of the AMF Set ID" }, 3666 { 0x8, "8 least significant bit of the AMF Set ID" }, 3667 { 0x9, "9 least significant bit of the AMF Set ID" }, 3668 { 0xa, "10 least significant bit of the AMF Set ID" }, 3669 { 0, NULL } 3670 }; 3671 3672 static const value_string nas_5gs_mm_amf_trunc_pointer_vals[] = { 3673 { 0x0, "reserved" }, 3674 { 0x1, "1 least significant bit of the AMF Pointer" }, 3675 { 0x2, "2 least significant bit of the AMF Pointer" }, 3676 { 0x3, "3 least significant bit of the AMF Pointer" }, 3677 { 0x4, "4 least significant bit of the AMF Pointer" }, 3678 { 0x5, "5 least significant bit of the AMF Pointer" }, 3679 { 0x6, "6 least significant bit of the AMF Pointer" }, 3680 { 0, NULL } 3681 }; 3682 3683 static guint16 3684 de_nas_5gs_mm_truncated_5g_s_tmsi_conf(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 3685 guint32 offset, guint len, 3686 gchar* add_string _U_, int string_len _U_) 3687 { 3688 proto_tree_add_item(tree, hf_nas_5gs_mm_trunc_amf_set_id, tvb, offset, 1, ENC_BIG_ENDIAN); 3689 proto_tree_add_item(tree, hf_nas_5gs_mm_trunc_amf_pointer, tvb, offset, 1, ENC_BIG_ENDIAN); 3690 3691 return len; 3692 } 3693 3694 /* 3695 * 9.11.3.71 WUS assistance information 3696 */ 3697 /* See subclause 9.9.3.62 in 3GPP TS 24.301 */ 3698 3699 /* 3700 * 9.11.3.72 N5GC indication 3701 */ 3702 static guint16 3703 de_nas_5gs_mm_n5gc_indication(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 3704 guint32 offset, guint len _U_, 3705 gchar* add_string _U_, int string_len _U_) 3706 { 3707 static int* const flags[] = { 3708 &hf_nas_5gs_spare_b3, 3709 &hf_nas_5gs_spare_b2, 3710 &hf_nas_5gs_spare_b1, 3711 &hf_nas_5gs_mm_n5gcreg_b0, 3712 NULL 3713 }; 3714 3715 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 3716 3717 return 1; 3718 3719 } 3720 3721 /* 3722 * 9.11.3.73 NB-N1 mode DRX parameters 3723 */ 3724 static const value_string nas_5gs_mm_nb_n1_drx_params_vals[] = { 3725 { 0x0, "DRX value not specified"}, 3726 { 0x1, "DRX cycle parameter T = 32"}, 3727 { 0x2, "DRX cycle parameter T = 64"}, 3728 { 0x3, "DRX cycle parameter T = 128"}, 3729 { 0x4, "DRX cycle parameter T = 256"}, 3730 { 0x5, "DRX cycle parameter T = 512"}, 3731 { 0x7, "DRX cycle parameter T = 1024"}, 3732 { 0, NULL } 3733 }; 3734 3735 static guint16 3736 de_nas_5gs_mm_nb_n1_mode_drx_pars(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 3737 guint32 offset, guint len _U_, 3738 gchar* add_string _U_, int string_len _U_) 3739 { 3740 proto_tree_add_bits_item(tree, hf_nas_5gs_spare_bits, tvb, offset << 3, 4, ENC_BIG_ENDIAN); 3741 proto_tree_add_item(tree, hf_nas_5gs_mm_nb_n1_drx_value, tvb, offset, 1, ENC_BIG_ENDIAN); 3742 3743 return 1; 3744 } 3745 3746 /* 3747 * 9.11.3.74 Additional configuration indication 3748 */ 3749 static true_false_string tfs_nas_5gs_mm_scmr = { 3750 "release of N1 NAS signalling connection not required", 3751 "no additional information" 3752 }; 3753 3754 static guint16 3755 de_nas_5gs_mm_additional_conf_ind(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 3756 guint32 offset, guint len _U_, 3757 gchar* add_string _U_, int string_len _U_) 3758 { 3759 static int* const flags[] = { 3760 &hf_nas_5gs_spare_b3, 3761 &hf_nas_5gs_spare_b2, 3762 &hf_nas_5gs_spare_b1, 3763 &hf_nas_5gs_mm_scmr, 3764 NULL 3765 }; 3766 3767 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 3768 3769 return 1; 3770 } 3771 3772 /* 3773 * 9.11.3.75 Extended rejected NSSAI 3774 */ 3775 static const value_string nas_5gs_mm_extended_rej_s_nssai_cause_vals[] = { 3776 { 0x00, "S-NSSAI not available in the current PLMN or SNPN" }, 3777 { 0x01, "S-NSSAI not available in the current registration area" }, 3778 { 0x02, "S-NSSAI not available due to the failed or revoked network slice-specific authentication and authorization" }, 3779 { 0x03, "S-NSSAI not available due to maximum number of UEs reached" }, 3780 { 0, NULL } }; 3781 3782 static guint16 3783 de_nas_5gs_mm_extended_rejected_nssai(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 3784 guint32 offset, guint len, 3785 gchar* add_string _U_, int string_len _U_) 3786 { 3787 proto_tree* sub_partial_tree; 3788 proto_tree* sub_rejected_tree; 3789 proto_item* item; 3790 int i = 1; 3791 guint num_partial_items = 1; 3792 guint32 curr_offset = offset; 3793 guint32 type_of_list, number_of_element, nssai_len; 3794 3795 /* Rejected NSSAI */ 3796 while ((curr_offset - offset) < len) { 3797 sub_partial_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, -1, ett_nas_5gs_mm_partial_extended_rejected_nssai_list, 3798 &item, "Partial extended rejected NSSAI list %u", num_partial_items); 3799 3800 proto_tree_add_item(sub_partial_tree, hf_nas_5gs_mm_extended_rejected_s_nssai_spare, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 3801 proto_tree_add_item_ret_uint(sub_partial_tree, hf_nas_5gs_mm_extended_rejected_s_nssai_type_of_list, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &type_of_list); 3802 proto_tree_add_item_ret_uint(sub_partial_tree, hf_nas_5gs_mm_extended_rejected_s_nssai_number_of_element, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &number_of_element); 3803 curr_offset++; 3804 3805 if (type_of_list > 0) { 3806 proto_tree_add_item(sub_partial_tree, hf_nas_5gs_mm_extended_rejected_s_nssai_back_off_timer, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 3807 curr_offset++; 3808 } 3809 3810 for (i = 0; i < (int)number_of_element; i++) 3811 { 3812 sub_rejected_tree = proto_tree_add_subtree_format(sub_partial_tree, tvb, curr_offset, -1, ett_nas_5gs_mm_ext_rej_nssai, 3813 &item, "Rejected S-NSSAI %u", i+1); 3814 3815 /* Octet 3 and octet 4 shall always be included*/ 3816 proto_tree_add_item_ret_uint(sub_rejected_tree, hf_nas_5gs_mm_len_of_rejected_s_nssai, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &nssai_len); 3817 proto_tree_add_item(sub_rejected_tree, hf_nas_5gs_mm_rejected_s_nssai_cause_value, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 3818 proto_item_set_len(item, nssai_len); 3819 curr_offset++; 3820 proto_tree_add_item(sub_rejected_tree, hf_nas_5gs_mm_sst, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 3821 curr_offset++; 3822 if (nssai_len < 3) { 3823 continue; 3824 } 3825 /* If the octet 5 is included, then octet 6 and octet 7 shall be included.*/ 3826 proto_tree_add_item(sub_rejected_tree, hf_nas_5gs_mm_sd, tvb, curr_offset, 3, ENC_BIG_ENDIAN); 3827 curr_offset += 3; 3828 if (nssai_len < 6) { 3829 continue; 3830 } 3831 /* If the octet 8 is included, then octets 9, 10, and 11 may be included*/ 3832 /* Mapped HPLMN SST */ 3833 proto_tree_add_item(sub_rejected_tree, hf_nas_5gs_mm_mapped_hplmn_sst, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 3834 curr_offset += 1; 3835 if (nssai_len < 7) { 3836 continue; 3837 } 3838 /* Mapped HPLMN SD */ 3839 proto_tree_add_item(sub_rejected_tree, hf_nas_5gs_mm_mapped_hplmn_ssd, tvb, offset, 3, ENC_BIG_ENDIAN); 3840 curr_offset += 3; 3841 } 3842 num_partial_items++; 3843 } 3844 return len; 3845 } 3846 3847 /* 3848 * 9.11.4 5GS session management (5GSM) information elements 3849 */ 3850 3851 /* 3852 * 9.11.4.1 5GSM capability 3853 */ 3854 static const value_string nas_5gs_sm_atsss_st_b3_b6_vals[] = { 3855 { 0x0, "ATSSS not supported" }, 3856 { 0x1, "ATSSS Low-Layer functionality with any steering mode supported" }, 3857 { 0x2, "MPTCP functionality with any steering mode and ATSSS-LL functionality with only active-standby steering mode supported" }, 3858 { 0x3, "MPTCP functionality with any steering mode and ATSSS-LL functionality with any steering mode supported" }, 3859 { 0, NULL } 3860 }; 3861 3862 static guint16 3863 de_nas_5gs_sm_5gsm_cap(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 3864 guint32 offset, guint len, 3865 gchar *add_string _U_, int string_len _U_) 3866 { 3867 guint32 curr_offset = offset; 3868 3869 static int * const flags[] = { 3870 &hf_nas_5gs_sm_tpmic_b7, 3871 &hf_nas_5gs_sm_atsss_st_b3_b6, 3872 &hf_nas_5gs_sm_ept_s1_b2, 3873 &hf_nas_5gs_sm_mh6_pdu_b1, 3874 &hf_nas_5gs_sm_rqos_b0, 3875 NULL 3876 }; 3877 3878 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, flags, ENC_BIG_ENDIAN); 3879 curr_offset++; 3880 3881 EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_nas_5gs_extraneous_data); 3882 3883 return (curr_offset - offset); 3884 } 3885 3886 /* 3887 * 9.11.4.2 5GSM cause 3888 */ 3889 3890 const value_string nas_5gs_sm_cause_vals[] = { 3891 { 0x08, "Operator determined barring" }, 3892 { 0x1a, "Insufficient resources" }, 3893 { 0x1b, "Missing or unknown DNN" }, 3894 { 0x1c, "Unknown PDU session type" }, 3895 { 0x1d, "User authentication or authorization failed" }, 3896 { 0x1f, "Request rejected, unspecified" }, 3897 { 0x20, "Service option not supported" }, 3898 { 0x21, "Requested service option not subscribed" }, 3899 { 0x22, "Service option temporarily out of order" }, /* no more defined, kept for backward compatibility */ 3900 { 0x23, "PTI already in use" }, 3901 { 0x24, "Regular deactivation" }, 3902 { 0x26, "Network failure" }, 3903 { 0x27, "Reactivation requested" }, 3904 { 0x29, "Semantic error in the TFT operation" }, 3905 { 0x2a, "Syntactical error in the TFT operation" }, 3906 { 0x2b, "Invalid PDU session identity" }, 3907 { 0x2c, "Semantic errors in packet filter(s)" }, 3908 { 0x2d, "Syntactical error in packet filter(s)" }, 3909 { 0x2e, "Out of LADN service area" }, 3910 { 0x2f, "PTI mismatch" }, 3911 { 0x32, "PDU session type IPv4 only allowed" }, 3912 { 0x33, "PDU session type IPv6 only allowed" }, 3913 { 0x36, "PDU session does not exist" }, 3914 { 0x39, "PDU session type IPv4v6 only allowed" }, 3915 { 0x3a, "PDU session type Unstructured only allowed" }, 3916 { 0x3b, "Unsupported 5QI value" }, 3917 { 0x3d, "PDU session type Ethernet only allowed" }, 3918 { 0x43, "Insufficient resources for specific slice and DNN" }, 3919 { 0x44, "Not supported SSC mode" }, 3920 { 0x45, "Insufficient resources for specific slice" }, 3921 { 0x46, "Missing or unknown DNN in a slice" }, 3922 { 0x51, "Invalid PTI value" }, 3923 { 0x52, "Maximum data rate per UE for user-plane integrity protection is too low" }, 3924 { 0x53, "Semantic error in the QoS operation" }, 3925 { 0x54, "Syntactical error in the QoS operation" }, 3926 { 0x55, "Invalid mapped EPS bearer identity" }, 3927 { 0x5f, "Semantically incorrect message" }, 3928 { 0x60, "Invalid mandatory information" }, 3929 { 0x61, "Message type non-existent or not implemented" }, 3930 { 0x62, "Message type not compatible with the protocol state" }, 3931 { 0x63, "Information element non-existent or not implemented" }, 3932 { 0x64, "Conditional IE error" }, 3933 { 0x65, "Message not compatible with the protocol state" }, 3934 { 0x6f, "Protocol error, unspecified" }, 3935 { 0, NULL } 3936 }; 3937 3938 static guint16 3939 de_nas_5gs_sm_5gsm_cause(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 3940 guint32 offset, guint len _U_, 3941 gchar *add_string _U_, int string_len _U_) 3942 { 3943 guint32 cause; 3944 3945 proto_tree_add_item_ret_uint(tree, hf_nas_5gs_sm_5gsm_cause, tvb, offset, 1, ENC_BIG_ENDIAN, &cause); 3946 3947 col_append_fstr(pinfo->cinfo, COL_INFO, " (%s)", 3948 val_to_str_const(cause, nas_5gs_sm_cause_vals, "Unknown")); 3949 3950 3951 return 1; 3952 } 3953 3954 /* 3955 * 9.11.4.3 Always-on PDU session indication 3956 */ 3957 static true_false_string tfs_nas_5gs_sm_apsi = { 3958 "required", 3959 "not allowed" 3960 }; 3961 3962 static guint16 3963 de_nas_5gs_sm_always_on_pdu_ses_ind(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 3964 guint32 offset, guint len, 3965 gchar *add_string _U_, int string_len _U_) 3966 { 3967 static int * const flags[] = { 3968 &hf_nas_5gs_spare_b3, 3969 &hf_nas_5gs_spare_b2, 3970 &hf_nas_5gs_spare_b1, 3971 &hf_nas_5gs_sm_apsi, 3972 NULL 3973 }; 3974 3975 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 3976 3977 return len; 3978 } 3979 3980 /* 3981 * 9.11.4.4 Always-on PDU session requested 3982 */ 3983 static guint16 3984 de_nas_5gs_sm_always_on_pdu_ses_req(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 3985 guint32 offset, guint len, 3986 gchar *add_string _U_, int string_len _U_) 3987 { 3988 static int * const flags[] = { 3989 &hf_nas_5gs_spare_b3, 3990 &hf_nas_5gs_spare_b2, 3991 &hf_nas_5gs_spare_b1, 3992 &hf_nas_5gs_sm_apsr, 3993 NULL 3994 }; 3995 3996 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 3997 3998 return len; 3999 } 4000 4001 /* 4002 * 9.11.4.5 Allowed SSC mode 4003 */ 4004 4005 static guint16 4006 de_nas_5gs_sm_5gsm_allowed_ssc_mode(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 4007 guint32 offset, guint len _U_, 4008 gchar *add_string _U_, int string_len _U_) 4009 { 4010 4011 static int * const flags[] = { 4012 &hf_nas_5gs_spare_b3, 4013 &hf_nas_5gs_sm_all_ssc_mode_b2, 4014 &hf_nas_5gs_sm_all_ssc_mode_b1, 4015 &hf_nas_5gs_sm_all_ssc_mode_b0, 4016 NULL 4017 }; 4018 4019 4020 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 4021 4022 return 1; 4023 } 4024 4025 /* 4026 * 9.11.4.6 Extended protocol configuration options 4027 */ 4028 /* See subclause 10.5.6.3A in 3GPP TS 24.008 */ 4029 4030 /* 4031 * 9.11.4.7 Integrity protection maximum data rate 4032 */ 4033 static const value_string nas_5gs_sm_int_prot_max_data_rate_vals[] = { 4034 { 0x00, "64 kbps" }, 4035 { 0x01, "NULL" }, 4036 { 0xff, "Full data rate" }, 4037 { 0, NULL } 4038 }; 4039 4040 static guint16 4041 de_nas_5gs_sm_int_prot_max_data_rte(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 4042 guint32 offset, guint len _U_, 4043 gchar *add_string _U_, int string_len _U_) 4044 { 4045 /* Maximum data rate per UE for user-plane integrity protection for uplink */ 4046 proto_tree_add_item(tree, hf_nas_5gs_sm_int_prot_max_data_rate_ul, tvb, offset, 1, ENC_BIG_ENDIAN); 4047 4048 /* Maximum data rate per UE for user-plane integrity protection for downlink */ 4049 proto_tree_add_item(tree, hf_nas_5gs_sm_int_prot_max_data_rate_dl, tvb, offset+1, 1, ENC_BIG_ENDIAN); 4050 4051 return 2; 4052 } 4053 4054 /* 4055 * 9.11.4.8 Mapped EPS bearer contexts 4056 */ 4057 static const value_string nas_5gs_sm_mapd_eps_b_cont_opt_code_vals[] = { 4058 { 0x0, "Reserved" }, 4059 { 0x01, "Create new EPS bearer" }, 4060 { 0x02, "Delete existing EPS bearer" }, 4061 { 0x03, "Modify existing EPS bearer" }, 4062 { 0, NULL } 4063 }; 4064 4065 static const value_string nas_5gs_sm_mapd_eps_b_cont_E_vals[] = { 4066 { 0x0, "parameters list is not included" }, 4067 { 0x01, "parameters list is included" }, 4068 { 0, NULL } 4069 }; 4070 4071 static const value_string nas_5gs_sm_mapd_eps_b_cont_E_Modify_vals[] = { 4072 { 0x0, "extension of previously provided parameters list" }, 4073 { 0x01, "replacement of all previously provided parameters list" }, 4074 { 0, NULL } 4075 }; 4076 4077 static const value_string nas_5gs_sm_mapd_eps_b_cont_param_id_vals[] = { 4078 { 0x01, "Mapped EPS QoS parameters" }, 4079 { 0x02, "Mapped extended EPS QoS parameters" }, 4080 { 0x03, "Traffic flow template" }, 4081 { 0x04, "APN-AMBR" }, 4082 { 0x05, "Extended APN-AMBR" }, 4083 { 0, NULL } 4084 }; 4085 4086 static guint16 4087 de_nas_5gs_sm_mapped_eps_b_cont(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 4088 guint32 offset, guint len, 4089 gchar *add_string _U_, int string_len _U_) 4090 { 4091 4092 guint32 curr_offset; 4093 proto_tree * sub_tree, *sub_tree1; 4094 guint32 num_cont, length, opt_code, num_eps_parms, param_id; 4095 proto_item * item; 4096 guint i, curr_len; 4097 4098 curr_len = len; 4099 curr_offset = offset; 4100 num_cont = 1; 4101 4102 static int * const mapd_eps_b_cont_flags[] = { 4103 &hf_nas_5gs_sm_mapd_eps_b_cont_opt_code, 4104 &hf_nas_5gs_spare_b5, 4105 &hf_nas_5gs_sm_mapd_eps_b_cont_E, 4106 &hf_nas_5gs_sm_mapd_eps_b_cont_num_eps_parms, 4107 NULL 4108 }; 4109 4110 static int * const mapd_eps_b_cont_flags_modify[] = { 4111 &hf_nas_5gs_sm_mapd_eps_b_cont_opt_code, 4112 &hf_nas_5gs_spare_b5, 4113 &hf_nas_5gs_sm_mapd_eps_b_cont_E_mod, 4114 &hf_nas_5gs_sm_mapd_eps_b_cont_num_eps_parms, 4115 NULL 4116 }; 4117 4118 /* The IE contains a number of Mapped EPS bearer context */ 4119 while ((curr_offset - offset) < len) { 4120 /* Figure 9.11.4.5.2: Mapped EPS bearer context */ 4121 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, -1, ett_nas_5gs_sm_mapd_eps_b_cont, &item, 4122 "Mapped EPS bearer context %u", num_cont); 4123 4124 /* EPS bearer identity */ 4125 proto_tree_add_item(sub_tree, hf_nas_5gs_sm_mapd_eps_b_cont_id, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4126 curr_offset++; 4127 curr_len--; 4128 4129 /* Length of Mapped EPS bearer context*/ 4130 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_sm_length, tvb, curr_offset, 2, ENC_BIG_ENDIAN, &length); 4131 curr_offset += 2; 4132 curr_len -= 2; 4133 4134 /* 8 7 6 5 4 3 2 1 */ 4135 /* operation code | spare | E | number of EPS params */ 4136 proto_item_set_len(item, length + 3); 4137 4138 num_eps_parms = tvb_get_guint8(tvb, curr_offset); 4139 4140 opt_code = (num_eps_parms & 0xc0) >> 6; 4141 num_eps_parms = num_eps_parms & 0x0f; 4142 4143 /* operation code = 3 Modify existing EPS bearer */ 4144 if (opt_code == 3) { 4145 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset, 1, mapd_eps_b_cont_flags_modify, ENC_BIG_ENDIAN); 4146 4147 } else { 4148 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset, 1, mapd_eps_b_cont_flags, ENC_BIG_ENDIAN); 4149 4150 } 4151 curr_offset++; 4152 curr_len--; 4153 i = 1; 4154 4155 /* EPS parameters list */ 4156 while (num_eps_parms > 0) { 4157 4158 sub_tree1 = proto_tree_add_subtree_format(sub_tree, tvb, curr_offset, -1, ett_nas_5gs_sm_mapd_eps_b_cont_params_list, &item, 4159 "EPS parameter %u", i); 4160 4161 /* EPS parameter identifier */ 4162 proto_tree_add_item_ret_uint(sub_tree1, hf_nas_5gs_sm_mapd_eps_b_cont_param_id, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &param_id); 4163 proto_item_append_text(item, " - %s", val_to_str_const(param_id, nas_5gs_sm_mapd_eps_b_cont_param_id_vals, "Unknown")); 4164 curr_offset++; 4165 curr_len--; 4166 4167 /*length of the EPS parameter contents field */ 4168 proto_tree_add_item_ret_uint(sub_tree1, hf_nas_5gs_sm_length, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &length); 4169 curr_offset++; 4170 curr_len--; 4171 4172 proto_item_set_len(item, length + 2); 4173 /*content of the EPS parameter contents field */ 4174 switch (param_id) { 4175 case 1: 4176 /* 01H (Mapped EPS QoS parameters) */ 4177 de_esm_qos(tvb, sub_tree1, pinfo, curr_offset, length, NULL, 0); 4178 break; 4179 case 2: 4180 /* 02H (Mapped extended EPS QoS parameters) */ 4181 de_esm_ext_eps_qos(tvb, sub_tree1, pinfo, curr_offset, length, NULL, 0); 4182 break; 4183 case 3: 4184 /* 03H (Traffic flow template)*/ 4185 de_sm_tflow_temp(tvb, sub_tree1, pinfo, curr_offset, length, NULL, 0); 4186 break; 4187 case 4: 4188 /* 04H (APN-AMBR) */ 4189 de_esm_apn_aggr_max_br(tvb, sub_tree1, pinfo, curr_offset, length, NULL, 0); 4190 break; 4191 case 5: 4192 /* 05H (extended APN-AMBR). */ 4193 de_esm_ext_apn_agr_max_br(tvb, sub_tree1, pinfo, curr_offset, length, NULL, 0); 4194 break; 4195 default: 4196 proto_tree_add_item(sub_tree1, hf_nas_5gs_sm_mapd_eps_b_cont_eps_param_cont, tvb, curr_offset, length, ENC_NA); 4197 break; 4198 } 4199 curr_offset +=length; 4200 curr_len -= length; 4201 i++; 4202 num_eps_parms--; 4203 } 4204 4205 num_cont++; 4206 } 4207 4208 return len; 4209 4210 4211 } 4212 4213 /* 4214 * 9.11.4.9 Maximum number of supported packet filters 4215 */ 4216 static guint16 4217 de_nas_5gs_sm_max_num_sup_pkt_flt(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 4218 guint32 offset, guint len _U_, 4219 gchar *add_string _U_, int string_len _U_) 4220 { 4221 static int * const flags[] = { 4222 &hf_nas_5gs_sm_max_nb_sup_pkt_flt_nb, 4223 &hf_nas_5gs_sm_max_nb_sup_pkt_flt_spare, 4224 NULL 4225 }; 4226 4227 proto_tree_add_bitmask_list(tree, tvb, offset, 2, flags, ENC_BIG_ENDIAN); 4228 4229 return 2; 4230 } 4231 4232 /* 4233 * 9.11.4.10 PDU address 4234 */ 4235 4236 static const value_string nas_5gs_sm_pdu_ses_type_vals[] = { 4237 { 0x1, "IPv4" }, 4238 { 0x2, "IPv6" }, 4239 { 0x3, "IPv4v6" }, 4240 { 0, NULL } 4241 }; 4242 4243 4244 static guint16 4245 de_nas_5gs_sm_pdu_address(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 4246 guint32 offset, guint len, 4247 gchar *add_string _U_, int string_len _U_) 4248 { 4249 proto_item *ti; 4250 gboolean si6lla; 4251 guint32 pdu_addr; 4252 guint8 interface_id[8]; 4253 4254 /* 0 Spare 0 Spare 0 Spare 0 Spare SI6LLA PDU session type value */ 4255 proto_tree_add_item_ret_boolean(tree, hf_nas_5gs_sm_si6lla, tvb, offset, 1, ENC_BIG_ENDIAN, &si6lla); 4256 ti = proto_tree_add_item_ret_uint(tree, hf_nas_5gs_sm_pdu_ses_type, tvb, offset, 1, ENC_BIG_ENDIAN, &pdu_addr); 4257 offset++; 4258 4259 /* PDU address information */ 4260 switch (pdu_addr) { 4261 case 1: 4262 /* IPv4 */ 4263 proto_tree_add_item(tree, hf_nas_5gs_sm_pdu_addr_inf_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN); 4264 offset += 4; 4265 break; 4266 case 2: 4267 /* If the PDU session type value indicates IPv6, the PDU address information in octet 4 to octet 11 4268 * contains an interface identifier for the IPv6 link local address. 4269 */ 4270 tvb_memcpy(tvb, interface_id, offset, 8); 4271 proto_tree_add_bytes_format_value(tree, hf_nas_5gs_sm_pdu_addr_inf_ipv6, tvb, offset, 8, NULL, 4272 "::%x:%x:%x:%x", pntoh16(&interface_id[0]), pntoh16(&interface_id[2]), 4273 pntoh16(&interface_id[4]), pntoh16(&interface_id[6])); 4274 offset += 8; 4275 break; 4276 case 3: 4277 /* If the PDU session type value indicates IPv4v6, the PDU address information in octet 4 to octet 11 4278 * contains an interface identifier for the IPv6 link local address and in octet 12 to octet 15 4279 * contains an IPv4 address. 4280 */ 4281 tvb_memcpy(tvb, interface_id, offset, 8); 4282 proto_tree_add_bytes_format_value(tree, hf_nas_5gs_sm_pdu_addr_inf_ipv6, tvb, offset, 8, NULL, 4283 "::%x:%x:%x:%x", pntoh16(&interface_id[0]), pntoh16(&interface_id[2]), 4284 pntoh16(&interface_id[4]), pntoh16(&interface_id[6])); 4285 offset += 8; 4286 proto_tree_add_item(tree, hf_nas_5gs_sm_pdu_addr_inf_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN); 4287 offset += 4; 4288 break; 4289 default: 4290 expert_add_info(pinfo, ti, &ei_nas_5gs_unknown_value); 4291 return len; 4292 } 4293 4294 /* SMF's IPv6 link local address */ 4295 if (si6lla) { 4296 proto_tree_add_item(tree, hf_nas_5gs_sm_smf_ipv6_lla, tvb, offset, 16, ENC_NA); 4297 } 4298 4299 return len; 4300 } 4301 4302 /* 4303 * 9.11.4.11 PDU session type 4304 */ 4305 static const value_string nas_5gs_pdu_session_type_values[] = { 4306 { 0x1, "IPv4" }, 4307 { 0x2, "Ipv6" }, 4308 { 0x3, "Ipv4v6" }, 4309 { 0x4, "Unstructured" }, 4310 { 0x5, "Ethernet" }, 4311 { 0, NULL } 4312 }; 4313 4314 4315 static guint16 4316 de_nas_5gs_sm_pdu_session_type(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 4317 guint32 offset, guint len _U_, 4318 gchar *add_string _U_, int string_len _U_) 4319 { 4320 4321 proto_tree_add_item(tree, hf_nas_5gs_sm_pdu_session_type, tvb, offset, 1, ENC_BIG_ENDIAN); 4322 4323 return 1; 4324 } 4325 4326 /* 4327 * 9.11.4.12 QoS flow descriptions 4328 */ 4329 4330 static const value_string nas_5gs_sm_qos_des_flow_opt_code_vals[] = { 4331 { 0x00, "Reserved" }, 4332 { 0x01, "Create new QoS flow description" }, 4333 { 0x02, "Delete existing QoS flow description" }, 4334 { 0x03, "Modify existing QoS flow description" }, 4335 { 0, NULL } 4336 }; 4337 4338 static const value_string nas_5gs_sm_param_id_values[] = { 4339 { 0x01, "5QI" }, 4340 { 0x02, "GFBR uplink" }, 4341 { 0x03, "GFBR downlink" }, 4342 { 0x04, "MFBR uplink" }, 4343 { 0x05, "MFBR downlink" }, 4344 { 0x06, "Averaging window" }, 4345 { 0x07, "EPS bearer identity" }, 4346 { 0, NULL } 4347 }; 4348 4349 guint16 4350 de_nas_5gs_sm_qos_flow_des(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 4351 guint32 offset, guint len, 4352 gchar *add_string _U_, int string_len _U_) 4353 { 4354 4355 proto_tree *sub_tree, *sub_tree2; 4356 proto_item *item, *sub_item; 4357 int i = 1, j; 4358 guint32 param_len, param_id; 4359 guint32 curr_offset, start_offset, start_offset2; 4360 guint8 num_param; 4361 guint32 unit, mult, val; 4362 const char *unit_str; 4363 int hf_unit, hf_val; 4364 4365 static int * const param_flags[] = { 4366 &hf_nas_5gs_sm_e, 4367 &hf_nas_5gs_sm_nof_params, 4368 NULL 4369 }; 4370 4371 curr_offset = offset; 4372 4373 while ((curr_offset - offset) < len) { 4374 4375 /* QoS flow description */ 4376 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, len - (curr_offset - offset), ett_nas_5gs_sm_qos_params, &item, "QoS flow description %u", i); 4377 start_offset = curr_offset; 4378 4379 /* 0 0 QFI */ 4380 proto_tree_add_item(sub_tree, hf_nas_5gs_sm_qfi, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4381 curr_offset += 1; 4382 4383 /* Operation code */ 4384 proto_tree_add_item(sub_tree, hf_nas_5gs_sm_qos_des_flow_opt_code, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4385 curr_offset++; 4386 4387 /* 0 Spare E Number of parameters */ 4388 j = 1; 4389 num_param = tvb_get_guint8(tvb, curr_offset); 4390 num_param = num_param & 0x3f; 4391 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset, 1, param_flags, ENC_BIG_ENDIAN); 4392 curr_offset++; 4393 4394 4395 while (num_param > 0) { 4396 /* Parameter list */ 4397 sub_tree2 = proto_tree_add_subtree_format(sub_tree, tvb, curr_offset, len - (curr_offset - offset), ett_nas_5gs_sm_qos_rules, &sub_item, "Parameter %u", j); 4398 start_offset2 = curr_offset; 4399 4400 /* Parameter identifier */ 4401 proto_tree_add_item_ret_uint(sub_tree2, hf_nas_5gs_sm_param_id, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &param_id); 4402 proto_item_append_text(item, " - %s", val_to_str_const(param_id, nas_5gs_sm_param_id_values, "Unknown")); 4403 curr_offset++; 4404 /* Length of parameter contents */ 4405 proto_tree_add_item_ret_uint(sub_tree2, hf_nas_5gs_sm_param_len, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &param_len); 4406 curr_offset++; 4407 4408 /*parameter content*/ 4409 switch (param_id) { 4410 /* 01H (5QI)*/ 4411 case 0x01: 4412 proto_tree_add_item(sub_tree2, hf_nas_5gs_sm_5qi, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4413 curr_offset += param_len; 4414 break; 4415 /* 02H (GFBR uplink); 04H (MFBR uplink);*/ 4416 case 0x02: 4417 case 0x03: 4418 case 0x04: 4419 case 0x05: 4420 if (param_id == 2) { 4421 hf_unit = hf_nas_5gs_sm_unit_for_gfbr_ul; 4422 hf_val = hf_nas_5gs_sm_gfbr_ul; 4423 } else if (param_id == 3) { 4424 hf_unit = hf_nas_5gs_sm_unit_for_gfbr_dl; 4425 hf_val = hf_nas_5gs_sm_gfbr_dl; 4426 } else if (param_id == 4) { 4427 hf_unit = hf_nas_5gs_sm_unit_for_mfbr_ul; 4428 hf_val = hf_nas_5gs_sm_mfbr_ul; 4429 } else { 4430 hf_unit = hf_nas_5gs_sm_unit_for_mfbr_dl; 4431 hf_val = hf_nas_5gs_sm_mfbr_dl; 4432 } 4433 proto_tree_add_item_ret_uint(sub_tree2, hf_unit, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &unit); 4434 curr_offset++; 4435 mult = get_ext_ambr_unit(unit, &unit_str); 4436 val = tvb_get_ntohs(tvb, curr_offset); 4437 proto_tree_add_uint_format_value(sub_tree2, hf_val, tvb, curr_offset, param_len - 1, 4438 val, "%u %s (%u)", val * mult, unit_str, val); 4439 curr_offset += (param_len - 1); 4440 break; 4441 case 0x06: 4442 proto_tree_add_item(sub_tree2, hf_nas_5gs_sm_averaging_window, tvb, curr_offset, 2, ENC_BIG_ENDIAN); 4443 curr_offset += param_len; 4444 break; 4445 case 0x07: 4446 proto_tree_add_item(sub_tree2, hf_nas_5gs_sm_eps_bearer_id, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4447 curr_offset += param_len; 4448 break; 4449 default: 4450 proto_tree_add_item(sub_tree2, hf_nas_5gs_sm_param_cont, tvb, curr_offset, param_len, ENC_NA); 4451 curr_offset += param_len; 4452 break; 4453 } 4454 num_param--; 4455 j++; 4456 proto_item_set_len(sub_item, curr_offset - start_offset2); 4457 } 4458 i++; 4459 proto_item_set_len(item, curr_offset - start_offset); 4460 } 4461 4462 return len; 4463 } 4464 /* 4465 * 9.11.4.13 QoS rules 4466 */ 4467 4468 static true_false_string tfs_nas_5gs_sm_dqr = { 4469 "The QoS rule is the default QoS rule", 4470 "The QoS rule is not the default QoS rule" 4471 }; 4472 4473 static const value_string nas_5gs_rule_operation_code_values[] = { 4474 { 0x0, "Reserved" }, 4475 { 0x1, "Create new QoS rule" }, 4476 { 0x2, "Delete existing QoS rule" }, 4477 { 0x3, "Modify existing QoS rule and add packet filters" }, 4478 { 0x4, "Modify existing QoS rule and replace packet filters" }, 4479 { 0x5, "Modify existing QoS rule and delete packet filters" }, 4480 { 0x6, "Modify existing QoS rule without modifying packet filters" }, 4481 { 0x7, "Reserved" }, 4482 { 0, NULL } 4483 }; 4484 4485 static const value_string nas_5gs_sm_pf_type_values[] = { 4486 { 0x01, "Match-all type" }, 4487 { 0x10, "IPv4 remote address type" }, 4488 { 0x11, "IPv4 local address type" }, 4489 { 0x21, "IPv6 remote address/prefix length type" }, 4490 { 0x23, "IPv6 local address/prefix length type" }, 4491 { 0x30, "Protocol identifier/Next header type" }, 4492 { 0x40, "Single local port type" }, 4493 { 0x41, "Local port range type" }, 4494 { 0x50, "Single remote port type" }, 4495 { 0x51, "Remote port range type" }, 4496 { 0x60, "Security parameter index type" }, 4497 { 0x70, "Type of service/Traffic class type" }, 4498 { 0x80, "Flow label type" }, 4499 { 0x81, "Destination MAC address type" }, 4500 { 0x82, "Source MAC address type" }, 4501 { 0x83, "802.1Q C-TAG VID type" }, 4502 { 0x84, "802.1Q S-TAG VID type" }, 4503 { 0x85, "802.1Q C-TAG PCP/DEI type" }, 4504 { 0x86, "802.1Q S-TAG PCP/DEI type" }, 4505 { 0x87, "Ethertype type" }, 4506 { 0, NULL } 4507 }; 4508 4509 static const value_string nas_5gs_sm_pkt_flt_dir_values[] = { 4510 { 0x00, "Reserved" }, 4511 { 0x01, "Downlink only" }, 4512 { 0x02, "Uplink only" }, 4513 { 0x03, "Bidirectional" }, 4514 { 0, NULL } 4515 }; 4516 4517 guint16 4518 de_nas_5gs_sm_qos_rules(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, 4519 guint32 offset, guint len, 4520 gchar *add_string _U_, int string_len _U_) 4521 { 4522 4523 proto_tree *sub_tree, *sub_tree2, *sub_tree3; 4524 proto_item *item, *item2; 4525 int i = 1, j, k = 1; 4526 guint32 qos_rule_id, pf_len, pf_type, pfc_len; 4527 guint32 length, curr_offset, saved_offset, start_offset; 4528 guint8 num_pkt_flt, rop; 4529 4530 static int * const pkt_flt_flags[] = { 4531 &hf_nas_5gs_sm_rop, 4532 &hf_nas_5gs_sm_dqr, 4533 &hf_nas_5gs_sm_nof_pkt_filters, 4534 NULL 4535 }; 4536 4537 curr_offset = offset; 4538 4539 while ((curr_offset - offset) < len) { 4540 4541 /* QoS Rule */ 4542 sub_tree = proto_tree_add_subtree_format(tree, tvb, curr_offset, -1, ett_nas_5gs_sm_qos_rules, &item, "QoS rule %u", i); 4543 4544 /* QoS rule identifier Octet 4*/ 4545 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_sm_qos_rule_id, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &qos_rule_id); 4546 curr_offset += 1; 4547 /* Length of QoS rule Octet 5 - 6*/ 4548 proto_tree_add_item_ret_uint(sub_tree, hf_nas_5gs_sm_length, tvb, curr_offset, 2, ENC_BIG_ENDIAN, &length); 4549 curr_offset += 2; 4550 4551 saved_offset = curr_offset; 4552 proto_item_set_len(item, length + 3); 4553 4554 /* Rule operation code DQR bit Number of packet filters */ 4555 num_pkt_flt = tvb_get_guint8(tvb, curr_offset); 4556 rop = num_pkt_flt >> 5; 4557 num_pkt_flt = num_pkt_flt & 0x0f; 4558 proto_tree_add_bitmask_list(sub_tree, tvb, curr_offset, 1, pkt_flt_flags, ENC_BIG_ENDIAN); 4559 curr_offset++; 4560 4561 /* For the "delete existing QoS rule" operation and for the "modify existing QoS rule without modifying packet filters" 4562 * operation, the number of packet filters shall be coded as 0. 4563 */ 4564 if ((rop == 0) || (rop == 7)) { 4565 /* Reserved */ 4566 proto_tree_add_expert(tree, pinfo, &ei_nas_5gs_unknown_value, tvb, curr_offset, length - 1); 4567 i++; 4568 curr_offset += (length - 1); 4569 continue; 4570 } 4571 if ((rop == 2) || (rop == 6)) { 4572 if (num_pkt_flt != 0) { 4573 proto_tree_add_expert(tree, pinfo, &ei_nas_5gs_num_pkt_flt, tvb, curr_offset, length - 1); 4574 i++; 4575 curr_offset += (length - 1); 4576 continue; 4577 } 4578 } 4579 4580 /* Packet filter list */ 4581 j = 1; 4582 while (num_pkt_flt > 0) { 4583 sub_tree2 = proto_tree_add_subtree_format(sub_tree, tvb, curr_offset, -1, ett_nas_5gs_sm_qos_rules, &item, "Packet filter %u", j); 4584 start_offset = curr_offset; 4585 if (rop == 5) { 4586 /* modify existing QoS rule and delete packet filters */ 4587 /* 0 0 0 0 Packet filter identifier x*/ 4588 proto_tree_add_item(sub_tree2, hf_nas_5gs_sm_pkt_flt_id, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4589 curr_offset++; 4590 } else { 4591 /* "create new QoS rule", or "modify existing QoS rule and add packet filters" 4592 * or "modify existing QoS rule and replace packet filters" 4593 */ 4594 /* 0 0 Packet filter direction 1 Packet filter identifier 1*/ 4595 proto_tree_add_item(sub_tree2, hf_nas_5gs_sm_pkt_flt_dir, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4596 proto_tree_add_item(sub_tree2, hf_nas_5gs_sm_pkt_flt_id, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4597 curr_offset++; 4598 /* Length of packet filter contents */ 4599 proto_tree_add_item_ret_uint(sub_tree2, hf_nas_5gs_sm_pf_len, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &pf_len); 4600 curr_offset++; 4601 4602 k = 1; 4603 /* Packet filter contents */ 4604 while (pf_len > 0) { 4605 sub_tree3 = proto_tree_add_subtree_format(sub_tree2, tvb, curr_offset, -1, ett_nas_5gs_sm_pkt_filter_components, &item2, "Packet filter component %u", k); 4606 /* Each packet filter component shall be encoded as a sequence of a one octet packet filter component type identifier 4607 * and a fixed length packet filter component value field. 4608 * The packet filter component type identifier shall be transmitted first. 4609 */ 4610 proto_tree_add_item_ret_uint(sub_tree3, hf_nas_5gs_sm_pf_type, tvb, curr_offset, 1, ENC_BIG_ENDIAN, &pf_type); 4611 curr_offset++; 4612 /* Packet filter length contains the length of component type and content */ 4613 pf_len--; 4614 switch (pf_type) { 4615 case 1: 4616 /* Match-all type 4617 * . If the "match-all type" packet filter component is present in the packet filter, no other packet filter 4618 * component shall be present in the packet filter and the length of the packet filter contents field shall 4619 * be set to one. 4620 */ 4621 pfc_len = 0; 4622 break; 4623 case 16: 4624 /* For "IPv4 remote address type", the packet filter component value field shall be encoded as a sequence 4625 * of a four octet IPv4 address field and a four octet IPv4 address mask field. 4626 * The IPv4 address field shall be transmitted first. 4627 */ 4628 case 17: 4629 /* For "IPv4 local address type", the packet filter component value field shall be encoded as defined 4630 * for "IPv4 remote address type" 4631 */ 4632 proto_tree_add_item(sub_tree3, hf_nas_5gs_sm_pdu_addr_inf_ipv4, tvb, curr_offset, 4, ENC_BIG_ENDIAN); 4633 curr_offset += 4; 4634 proto_tree_add_item(sub_tree3, hf_nas_5gs_addr_mask_ipv4, tvb, curr_offset, 4, ENC_BIG_ENDIAN); 4635 curr_offset += 4; 4636 pfc_len = 8; 4637 break; 4638 case 33: 4639 case 35: 4640 proto_tree_add_item(sub_tree3, hf_nas_5gs_ipv6, tvb, curr_offset, 16, ENC_NA); 4641 curr_offset += 16; 4642 proto_tree_add_item(sub_tree3, hf_nas_5gs_ipv6_prefix_len, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4643 curr_offset++; 4644 pfc_len = 17; 4645 break; 4646 case 48: 4647 proto_tree_add_item(sub_tree3, hf_nas_5gs_protocol_identifier_or_next_hd, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4648 curr_offset++; 4649 pfc_len = 1; 4650 break; 4651 case 64: 4652 case 80: 4653 proto_tree_add_item(sub_tree3, hf_nas_5gs_single_port_type, tvb, curr_offset, 2, ENC_BIG_ENDIAN); 4654 curr_offset += 2; 4655 pfc_len = 2; 4656 break; 4657 case 65: 4658 case 81: 4659 proto_tree_add_item(sub_tree3, hf_nas_5gs_port_range_type_low, tvb, curr_offset, 2, ENC_BIG_ENDIAN); 4660 curr_offset += 2; 4661 proto_tree_add_item(sub_tree3, hf_nas_5gs_port_range_type_high, tvb, curr_offset, 2, ENC_BIG_ENDIAN); 4662 curr_offset += 2; 4663 pfc_len = 4; 4664 break; 4665 case 96: 4666 proto_tree_add_item(sub_tree3, hf_nas_5gs_sec_param_idx, tvb, curr_offset, 4, ENC_BIG_ENDIAN); 4667 curr_offset += 4; 4668 pfc_len = 4; 4669 break; 4670 case 112: 4671 proto_tree_add_item(sub_tree3, hf_nas_5gs_tos_tc_val, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4672 curr_offset++; 4673 proto_tree_add_item(sub_tree3, hf_nas_5gs_tos_tc_mask, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4674 curr_offset++; 4675 pfc_len = 2; 4676 break; 4677 case 128: 4678 proto_tree_add_item(sub_tree3, hf_nas_5gs_flow_label, tvb, curr_offset, 3, ENC_BIG_ENDIAN); 4679 curr_offset += 3; 4680 pfc_len = 3; 4681 break; 4682 case 129: 4683 case 130: 4684 proto_tree_add_item(sub_tree3, hf_nas_5gs_mac_addr, tvb, curr_offset, 6, ENC_NA); 4685 curr_offset += 6; 4686 pfc_len = 6; 4687 break; 4688 case 131: 4689 case 132: 4690 proto_tree_add_item(sub_tree3, hf_nas_5gs_vlan_tag_vid, tvb, curr_offset, 2, ENC_BIG_ENDIAN); 4691 curr_offset += 2; 4692 pfc_len = 2; 4693 break; 4694 case 133: 4695 case 134: 4696 proto_tree_add_item(sub_tree3, hf_nas_5gs_vlan_tag_pcp, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4697 proto_tree_add_item(sub_tree3, hf_nas_5gs_vlan_tag_dei, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4698 curr_offset++; 4699 pfc_len = 1; 4700 break; 4701 case 135: 4702 proto_tree_add_item(sub_tree3, hf_nas_5gs_ethertype, tvb, curr_offset, 2, ENC_BIG_ENDIAN); 4703 curr_offset += 2; 4704 pfc_len = 2; 4705 break; 4706 default: 4707 proto_tree_add_expert(sub_tree3, pinfo, &ei_nas_5gs_not_diss, tvb, curr_offset, pf_len); 4708 curr_offset += pf_len; 4709 pfc_len = pf_len; 4710 break; 4711 } 4712 pf_len -= pfc_len; 4713 k++; 4714 proto_item_set_len(item2, pfc_len + 1); 4715 } 4716 } 4717 num_pkt_flt--; 4718 j++; 4719 proto_item_set_len(item, curr_offset - start_offset); 4720 4721 } 4722 if (rop != 2 && (curr_offset - saved_offset) < length) { /* Delete existing QoS rule */ 4723 /* QoS rule precedence (octet z+1) 4724 * For the "delete existing QoS rule" operation, the QoS rule precedence value field shall not be included. 4725 * For the "create new QoS rule" operation, the QoS rule precedence value field shall be included. 4726 */ 4727 proto_tree_add_item(sub_tree, hf_nas_5gs_sm_qos_rule_precedence, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4728 curr_offset++; 4729 if ((curr_offset - saved_offset) < length) { 4730 /* QoS flow identifier (QFI) (bits 6 to 1 of octet z+2) 4731 * For the "delete existing QoS rule" operation, the QoS flow identifier value field shall not be included. 4732 * For the "create new QoS rule" operation, the QoS flow identifier value field shall be included. 4733 */ 4734 proto_tree_add_item(sub_tree, hf_nas_5gs_spare_b7, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4735 /* Segregation bit (bit 7 of octet z+2) */ 4736 if (pinfo->link_dir == P2P_DIR_UL) 4737 proto_tree_add_item(sub_tree, hf_nas_5gs_sm_segregation, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4738 else 4739 proto_tree_add_item(sub_tree, hf_nas_5gs_spare_b6, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4740 proto_tree_add_item(sub_tree, hf_nas_5gs_sm_qfi, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 4741 curr_offset++; 4742 } 4743 } 4744 4745 i++; 4746 } 4747 4748 return len; 4749 } 4750 4751 /* 4752 * 9.11.4.14 Session-AMBR 4753 */ 4754 4755 static const value_string nas_5gs_sm_unit_for_session_ambr_values[] = { 4756 { 0x00, "value is not used" }, 4757 { 0x01, "value is incremented in multiples of 1 Kbps" }, 4758 { 0x02, "value is incremented in multiples of 4 Kbps" }, 4759 { 0x03, "value is incremented in multiples of 16 Kbps" }, 4760 { 0x04, "value is incremented in multiples of 64 Kbps" }, 4761 { 0x05, "value is incremented in multiples of 256 kbps" }, 4762 { 0x06, "value is incremented in multiples of 1 Mbps" }, 4763 { 0x07, "value is incremented in multiples of 4 Mbps" }, 4764 { 0x08, "value is incremented in multiples of 16 Mbps" }, 4765 { 0x09, "value is incremented in multiples of 64 Mbps" }, 4766 { 0x0a, "value is incremented in multiples of 256 Mbps" }, 4767 { 0x0b, "value is incremented in multiples of 1 Gbps" }, 4768 { 0x0c, "value is incremented in multiples of 4 Gbps" }, 4769 { 0x0d, "value is incremented in multiples of 16 Gbps" }, 4770 { 0x0e, "value is incremented in multiples of 64 Gbps" }, 4771 { 0x0f, "value is incremented in multiples of 256 Gbps" }, 4772 { 0x10, "value is incremented in multiples of 1 Tbps" }, 4773 { 0x11, "value is incremented in multiples of 4 Tbps" }, 4774 { 0x12, "value is incremented in multiples of 16 Tbps" }, 4775 { 0x13, "value is incremented in multiples of 64 Tbps" }, 4776 { 0x14, "value is incremented in multiples of 256 Tbps" }, 4777 { 0x15, "value is incremented in multiples of 1 Pbps" }, 4778 { 0x16, "value is incremented in multiples of 4 Pbps" }, 4779 { 0x17, "value is incremented in multiples of 16 Pbps" }, 4780 { 0x18, "value is incremented in multiples of 64 Pbps" }, 4781 { 0x19, "value is incremented in multiples of 256 Pbps" }, 4782 { 0, NULL } 4783 }; 4784 4785 4786 guint16 4787 de_nas_5gs_sm_session_ambr(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 4788 guint32 offset, guint len, 4789 gchar *add_string _U_, int string_len _U_) 4790 { 4791 guint32 unit, mult, ambr_val; 4792 const char *unit_str; 4793 4794 /* Unit for Session-AMBR for downlink */ 4795 proto_tree_add_item_ret_uint(tree, hf_nas_5gs_sm_unit_for_session_ambr_dl, tvb, offset, 1, ENC_BIG_ENDIAN, &unit); 4796 offset++; 4797 4798 /* Session-AMBR for downlink (octets 4 and 5) */ 4799 mult = get_ext_ambr_unit(unit, &unit_str); 4800 ambr_val = tvb_get_ntohs(tvb, offset); 4801 proto_tree_add_uint_format_value(tree, hf_nas_5gs_sm_session_ambr_dl, tvb, offset, 2, 4802 ambr_val, "%u %s (%u)", ambr_val * mult, unit_str, ambr_val); 4803 offset += 2; 4804 4805 proto_tree_add_item_ret_uint(tree, hf_nas_5gs_sm_unit_for_session_ambr_ul, tvb, offset, 1, ENC_NA, &unit); 4806 offset++; 4807 mult = get_ext_ambr_unit(unit, &unit_str); 4808 ambr_val = tvb_get_ntohs(tvb, offset); 4809 proto_tree_add_uint_format_value(tree, hf_nas_5gs_sm_session_ambr_ul, tvb, offset, 2, 4810 ambr_val, "%u %s (%u)", ambr_val * mult, unit_str, ambr_val); 4811 4812 return len; 4813 } 4814 4815 /* 4816 * 9.11.4.15 SM PDU DN request container 4817 */ 4818 /* The SM PDU DN request container contains a DN-specific identity of the UE in the network access identifier (NAI) format */ 4819 static guint16 4820 de_nas_5gs_sm_pdu_dn_req_cont(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 4821 guint32 offset, guint len, 4822 gchar *add_string _U_, int string_len _U_) 4823 { 4824 proto_tree_add_item(tree, hf_nas_5gs_sm_dm_spec_id, tvb, offset, len, ENC_UTF_8); 4825 4826 return len; 4827 } 4828 4829 /* 4830 * 9.11.4.16 SSC mode 4831 */ 4832 4833 static const value_string nas_5gs_sc_mode_values[] = { 4834 { 0x1, "SSC mode 1" }, 4835 { 0x2, "SSC mode 2" }, 4836 { 0x3, "SSC mode 3" }, 4837 { 0, NULL } 4838 }; 4839 4840 4841 static guint16 4842 de_nas_5gs_sm_ssc_mode(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, 4843 guint32 offset, guint len _U_, 4844 gchar *add_string _U_, int string_len _U_) 4845 { 4846 4847 proto_tree_add_item(tree, hf_nas_5gs_sm_sc_mode, tvb, offset, 1, ENC_BIG_ENDIAN); 4848 4849 return 1; 4850 } 4851 4852 /* 4853 * 9.11.4.17 Re-attempt indicator 4854 */ 4855 static true_false_string tfs_nas_5gs_sm_eplmnc = { 4856 "UE is not allowed to re-attempt the procedure in an equivalent PLMN", 4857 "UE is allowed to re-attempt the procedure in an equivalent PLMN" 4858 }; 4859 4860 static true_false_string tfs_nas_5gs_sm_ratc = { 4861 "UE is not allowed to re-attempt the procedure in S1 mode", 4862 "UE is allowed to re-attempt the procedure in S1 mode" 4863 }; 4864 4865 static guint16 4866 de_nas_5gs_sm_re_attempt_ind(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 4867 guint32 offset, guint len, 4868 gchar* add_string _U_, int string_len _U_) 4869 { 4870 static int* const flags[] = { 4871 &hf_nas_5gs_spare_b7, 4872 &hf_nas_5gs_spare_b6, 4873 &hf_nas_5gs_spare_b5, 4874 &hf_nas_5gs_spare_b4, 4875 &hf_nas_5gs_spare_b3, 4876 &hf_nas_5gs_spare_b2, 4877 &hf_nas_5gs_sm_eplmnc, 4878 &hf_nas_5gs_sm_ratc, 4879 NULL 4880 }; 4881 4882 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 4883 4884 return len; 4885 } 4886 /* 4887 * 9.11.4.18 5GSM network feature support 4888 */ 4889 static guint16 4890 de_nas_5gs_sm_5gsm_nw_feature_sup(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 4891 guint32 offset, guint len, 4892 gchar* add_string _U_, int string_len _U_) 4893 { 4894 guint32 curr_offset = offset; 4895 4896 static int* const flags[] = { 4897 &hf_nas_5gs_spare_b7, 4898 &hf_nas_5gs_spare_b6, 4899 &hf_nas_5gs_spare_b5, 4900 &hf_nas_5gs_spare_b4, 4901 &hf_nas_5gs_spare_b3, 4902 &hf_nas_5gs_spare_b2, 4903 &hf_nas_5gs_spare_b1, 4904 &hf_nas_5gs_sm_ept_s1, 4905 NULL 4906 }; 4907 4908 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, flags, ENC_BIG_ENDIAN); 4909 curr_offset++; 4910 4911 EXTRANEOUS_DATA_CHECK(len, curr_offset - offset, pinfo, &ei_nas_5gs_extraneous_data); 4912 4913 return (curr_offset - offset); 4914 } 4915 /* 4916 * 9.11.4.19 Void 4917 */ 4918 4919 /* 4920 * 9.11.4.20 Serving PLMN rate control 4921 * See subclause 9.9.4.28 in 3GPP TS 24.301 4922 */ 4923 4924 /* 4925 * 9.11.4.21 5GSM congestion re-attempt indicator 4926 */ 4927 static true_false_string tfs_5gs_sm_abo = { 4928 "The back-off timer is applied in all PLMNs", 4929 "The back-off timer is applied in the registered PLMN" 4930 }; 4931 4932 static guint16 4933 de_nas_5gs_sm_5gsm_cong_re_attempt_ind(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 4934 guint32 offset, guint len, 4935 gchar* add_string _U_, int string_len _U_) 4936 { 4937 static int* const flags[] = { 4938 &hf_nas_5gs_spare_b7, 4939 &hf_nas_5gs_spare_b6, 4940 &hf_nas_5gs_spare_b5, 4941 &hf_nas_5gs_spare_b4, 4942 &hf_nas_5gs_spare_b3, 4943 &hf_nas_5gs_spare_b2, 4944 &hf_nas_5gs_spare_b1, 4945 &hf_nas_5gs_sm_abo, 4946 NULL 4947 }; 4948 4949 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 4950 4951 return len; 4952 } 4953 4954 /* 4955 * 9.11.4.22 ATSSS container 4956 */ 4957 static guint16 4958 de_nas_5gs_sm_atsss_cont(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 4959 guint32 offset, guint len, 4960 gchar* add_string _U_, int string_len _U_) 4961 { 4962 proto_tree_add_item(tree, hf_nas_5gs_sm_atsss_cont, tvb, offset, len, ENC_NA); 4963 4964 return len; 4965 } 4966 4967 /* 4968 * 9.11.4.23 Control plane only indication 4969 */ 4970 static true_false_string tfs_5gs_sm_cpoi = { 4971 "PDU session can be used for control plane CIoT 5GS optimization only", 4972 "reserved" 4973 }; 4974 4975 static guint16 4976 de_nas_5gs_sm_ctl_plane_only_ind(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 4977 guint32 offset, guint len _U_, 4978 gchar* add_string _U_, int string_len _U_) 4979 { 4980 static int* const flags[] = { 4981 &hf_nas_5gs_spare_b3, 4982 &hf_nas_5gs_spare_b2, 4983 &hf_nas_5gs_spare_b1, 4984 &hf_nas_5gs_sm_cpoi, 4985 NULL 4986 }; 4987 4988 proto_tree_add_bitmask_list(tree, tvb, offset, 1, flags, ENC_BIG_ENDIAN); 4989 4990 return 1; 4991 } 4992 /* 4993 * 9.11.4.24 IP header compression configuration 4994 */ 4995 static const value_string nas_5gs_sm_ip_hdr_comp_config_add_ip_hdr_compr_cxt_setup_params_type_vals[] = { 4996 { 0x00, "0x0000 (No Compression)" }, 4997 { 0x01, "0x0002 (UDP/IP)" }, 4998 { 0x02, "0x0003 (ESP/IP)" }, 4999 { 0x03, "0x0004 (IP)" }, 5000 { 0x04, "0x0006 (TCP/IP)" }, 5001 { 0x05, "0x0102 (UDP/IP)" }, 5002 { 0x06, "0x0103 (ESP/IP)" }, 5003 { 0x07, "0x0104 (IP)" }, 5004 { 0x08, "Other" }, 5005 { 0x0, NULL } 5006 }; 5007 5008 static guint16 5009 de_nas_5gs_sm_ip_hdr_comp_conf(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 5010 guint32 offset, guint len, 5011 gchar* add_string _U_, int string_len _U_) 5012 { 5013 guint32 curr_offset = offset; 5014 5015 static int * const flags[] = { 5016 &hf_nas_5gs_spare_b7, 5017 &hf_nas_5gs_sm_ip_hdr_comp_config_p0104, 5018 &hf_nas_5gs_sm_ip_hdr_comp_config_p0103, 5019 &hf_nas_5gs_sm_ip_hdr_comp_config_p0102, 5020 &hf_nas_5gs_sm_ip_hdr_comp_config_p0006, 5021 &hf_nas_5gs_sm_ip_hdr_comp_config_p0004, 5022 &hf_nas_5gs_sm_ip_hdr_comp_config_p0003, 5023 &hf_nas_5gs_sm_ip_hdr_comp_config_p0002, 5024 NULL 5025 }; 5026 5027 proto_tree_add_bitmask_list(tree, tvb, curr_offset, 1, flags, ENC_NA); 5028 curr_offset++; 5029 proto_tree_add_item(tree, hf_nas_5gs_sm_ip_hdr_comp_config_max_cid, tvb, curr_offset, 2, ENC_BIG_ENDIAN); 5030 curr_offset += 2; 5031 5032 if ((curr_offset - offset) >= len) { 5033 return len; 5034 } 5035 5036 proto_tree_add_item(tree, hf_nas_5gs_sm_ip_hdr_comp_config_add_ip_hdr_compr_cxt_setup_params_type, tvb, curr_offset, 1, ENC_BIG_ENDIAN); 5037 curr_offset++; 5038 proto_tree_add_item(tree, hf_nas_5gs_sm_ip_hdr_comp_config_add_ip_hdr_compr_cxt_setup_params_cont, tvb, curr_offset, len - (curr_offset - offset), ENC_NA); 5039 5040 return len; 5041 } 5042 /* 5043 * 9.11.4.25 DS-TT Ethernet port MAC address 5044 */ 5045 static guint16 5046 de_nas_5gs_sm_ds_tt_eth_port_mac_addr(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 5047 guint32 offset, guint len, 5048 gchar* add_string _U_, int string_len _U_) 5049 { 5050 proto_tree_add_item(tree, hf_nas_5gs_sm_ds_tt_eth_port_mac_addr, tvb, offset, 6, ENC_NA); 5051 5052 return len; 5053 } 5054 5055 /* 5056 * 9.11.4.26 UE-DS-TT residence time 5057 */ 5058 static guint16 5059 de_nas_5gs_sm_ue_ds_tt_residence_t(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 5060 guint32 offset, guint len, 5061 gchar* add_string _U_, int string_len _U_) 5062 { 5063 proto_tree_add_item(tree, hf_nas_5gs_sm_ue_ds_tt_residence_time, tvb, offset, 8, ENC_NA); 5064 5065 return len; 5066 } 5067 5068 /* 5069 * 9.11.4.27 Port management information container 5070 */ 5071 static guint16 5072 de_nas_5gs_sm_port_mgnt_inf_cont(tvbuff_t* tvb, proto_tree* tree, packet_info* pinfo _U_, 5073 guint32 offset, guint len, 5074 gchar* add_string _U_, int string_len _U_) 5075 { 5076 proto_tree_add_item(tree, hf_nas_5gs_sm_port_mgmt_info_cont, tvb, offset, len, ENC_NA); 5077 5078 return len; 5079 } 5080 5081 /* 5082 * 9.11.4.28 Ethernet header compression configuration 5083 */ 5084 static const value_string nas_5gs_sm_eth_hdr_comp_config_cid_len_vals[] = { 5085 { 0x0, "Ethernet header compression not used" }, 5086 { 0x1, "7 bits" }, 5087 { 0x2, "15 bits" }, 5088 { 0x0, NULL } 5089 }; 5090 5091 static guint16 5092 de_nas_5gs_sm_eth_hdr_comp_conf(tvbuff_t* tvb, proto_tree