plugins/wimax/msg_rng_rsp.c

   1 /* msg_rng_rsp.c
   2  * WiMax MAC Management RNG-RSP Message decoder
   3  *
   4  * Copyright (c) 2007 by Intel Corporation.
   5  *
   6  * Author: John R. Underwood <junderx@yahoo.com>
   7  *
   8  * $Id$
   9  *
  10  * Wireshark - Network traffic analyzer
  11  * By Gerald Combs <gerald@wireshark.org>
  12  * Copyright 1999 Gerald Combs
  13  *
  14  * This program is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU General Public License
  16  * as published by the Free Software Foundation; either version 2
  17  * of the License, or (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  27  */
  28
  29 /* Include files */
  30
  31 #include "config.h"
  32
  33 #include <glib.h>
  34 #include <epan/packet.h>
  35 #include "crc.h"
  36 #include "wimax_tlv.h"
  37 #include "wimax_mac.h"
  38 #include "wimax_utils.h"
  39
  40 extern gboolean include_cor2_changes;
  41
  42 /* external reference */
  43 extern void dissect_power_saving_class(proto_tree *rng_req_tree, gint tlv_type, tvbuff_t *tvb, guint compound_tlv_len, packet_info *pinfo, guint offset);
  44
  45 static dissector_handle_t sbc_rsp_handle = NULL;
  46 static dissector_handle_t reg_rsp_handle = NULL;
  47
  48 static gint proto_mac_mgmt_msg_rng_rsp_decoder = -1;
  49 static gint ett_mac_mgmt_msg_rng_rsp_decoder   = -1;
  50 static gint ett_rng_rsp_message_tree           = -1;
  51
  52 /* RNG-RSP fields */
  53 static gint hf_rng_req_reserved                                 = -1;
  54 /* static gint hf_rng_rsp_ul_channel_id                         = -1; */
  55 static gint hf_rng_rsp_timing_adjust                            = -1;
  56 static gint hf_rng_rsp_power_level_adjust                       = -1;
  57 static gint hf_rng_rsp_offset_freq_adjust                       = -1;
  58 static gint hf_rng_rsp_ranging_status                           = -1;
  59 static gint hf_rng_rsp_dl_freq_override                         = -1;
  60 static gint hf_rng_rsp_ul_chan_id_override                      = -1;
  61 static gint hf_rng_rsp_dl_operational_burst_profile             = -1;
  62 static gint hf_rng_rsp_dl_operational_burst_profile_diuc        = -1;
  63 static gint hf_rng_rsp_dl_operational_burst_profile_ccc         = -1;
  64 static gint hf_rng_rsp_ss_mac_address                           = -1;
  65 static gint hf_rng_rsp_basic_cid                                = -1;
  66 static gint hf_rng_rsp_primary_mgmt_cid                         = -1;
  67 static gint hf_rng_rsp_broadcast                                = -1;
  68 static gint hf_rng_rsp_frame_number                             = -1;
  69 static gint hf_rng_rsp_opportunity_number                       = -1;
  70 static gint hf_rng_rsp_service_level_prediction                 = -1;
  71 static gint hf_rng_rsp_resource_retain_flag                     = -1;
  72 static gint hf_rng_rsp_ho_process_optimization                  = -1;
  73 static gint hf_rng_rsp_ho_process_optimization_0                = -1;
  74 static gint hf_rng_rsp_ho_process_optimization_1_2              = -1;
  75 static gint hf_rng_rsp_ho_process_optimization_3                = -1;
  76 static gint hf_rng_rsp_ho_process_optimization_4                = -1;
  77 static gint hf_rng_rsp_ho_process_optimization_5                = -1;
  78 static gint hf_rng_rsp_ho_process_optimization_6                = -1;
  79 static gint hf_rng_rsp_ho_process_optimization_7                = -1;
  80 static gint hf_rng_rsp_ho_process_optimization_8                = -1;
  81 static gint hf_rng_rsp_ho_process_optimization_9                = -1;
  82 static gint hf_rng_rsp_ho_process_optimization_10               = -1;
  83 static gint hf_rng_rsp_ho_process_optimization_11               = -1;
  84 static gint hf_rng_rsp_ho_process_optimization_12               = -1;
  85 static gint hf_rng_rsp_ho_process_optimization_13               = -1;
  86 static gint hf_rng_rsp_ho_process_optimization_14               = -1;
  87 static gint hf_rng_rsp_ho_process_optimization_15               = -1;
  88 /* Added the following to help implement RNG-RSP message encoding 33 (Table 367 in IEEE 802.16e-2007) */
  89 static gint hf_rng_rsp_dl_op_burst_profile_ofdma                = -1;
  90 static gint hf_rng_rsp_least_robust_diuc                        = -1;
  91 static gint hf_rng_rsp_repetition_coding_indication             = -1;
  92 static gint hf_rng_rsp_config_change_count_of_dcd               = -1;
  93 /* Added the following to help implement RNG-RSP message encoding 22 (Table 367 in IEEE 802.16e-2007) */
  94 static gint hf_rng_rsp_ho_id                                    = -1;
  95 static gint hf_rng_rsp_location_update_response                 = -1;
  96 /* Added the following to help implement RNG-RSP message encoding 24 (Table 367 in IEEE 802.16e-2007) */
  97 static gint hf_rng_rsp_paging_information                       = -1;
  98 static gint hf_rng_rsp_paging_cycle                             = -1;
  99 static gint hf_rng_rsp_paging_offset                            = -1;
 100 static gint hf_rng_rsp_paging_group_id                          = -1;
 101 static gint hf_rng_rsp_bs_random                                = -1;
 102 static gint hf_rng_rsp_akid                                     = -1;
 103 static gint hf_rng_rsp_ranging_subchan                          = -1;
 104 static gint hf_rng_rsp_time_symbol_reference                    = -1;
 105 static gint hf_rng_rsp_subchannel_reference                     = -1;
 106 static gint hf_rng_rsp_ranging_code_index                       = -1;
 107 static gint hf_rng_rsp_frame_number2                            = -1;
 108 static gint hf_tlv_type                                         = -1;
 109 /* static gint hf_tlv_value                                     = -1; */
 110 static gint hf_rng_invalid_tlv                                  = -1;
 111
 112 /* STRING RESOURCES */
 113
 114 static const true_false_string tfs_rng_rsp_aas_broadcast = {
 115     "SS shall not issue contention-based Bandwidth Request",
 116     "SS may issue contention-based Bandwidth Request"
 117 };
 118
 119 static const true_false_string tfs_rng_rsp_resource_retain_flag = {
 120         "Retained by the BS",
 121         "Deleted by the BS"
 122 };
 123
 124 static const value_string vals_rng_rsp_ranging_status[] = {
 125     {1,                                 "continue"},
 126     {2,                                 "abort"},
 127     {3,                                 "success"},
 128     {4,                                 "rerange"},
 129     {0,                                 NULL}
 130 };
 131
 132 static const value_string vals_rng_rsp_level_of_service[] = {
 133         {0,             "No service possible for this MS"},
 134         {1,             "Some service is available for one or"
 135                         " several service flows authorized for the MS"},
 136         {2,             "For each authorized service flow, a MAC"
 137                         " connection can be established with QoS"
 138                         " specified by the AuthorizedQoSParamSet"},
 139         {3,             "No service level prediction available"},
 140         {0,             NULL}
 141 };
 142
 143 static const value_string vals_rng_rsp_ho_process_optimization_0[] = {
 144         {0,             "SBC-REQ management messages during current re-entry"
 145                         " processing required"},
 146         {1,             "Omit SBC-REQ management messages during current"
 147                         " re-entry processing"},
 148         {0,             NULL},
 149 };
 150
 151 static const value_string vals_rng_rsp_ho_process_optimization_1_2[] = {
 152         {0,             "Perform re-authentication and SA-TEK 3-way handshake."
 153                         " BS should include SA-TEK-Update TLV in the"
 154                         " SA-TEK-Response message. In addition, the RNG-RSP"
 155                         " message does not include SA-TEK-Update TLV or SA"
 156                         " Challenge Tuple TLV."},
 157         {1,             "SA-TEK-Update TLV is included in the RNG-RSP message."
 158                         " In this case, SA-TEK 3-way handshake is avoided and"
 159                         " SA Challenge Tuple TLV shall not be included in the"
 160                         " RNG-RSP message."},
 161         {2,             "Reserved"},
 162         {3,             "Re-authentication and SA-TEK 3-way handshake is not"
 163                         " performed. The RNG-RSP message does not include"
 164                         " SA-TEK-Update TLV nor SA Challenge Tuple TLV. All the"
 165                         " TEKs received from the serving BS are reused"},
 166         {0,             NULL}
 167 };
 168
 169 static const value_string vals_rng_rsp_ho_process_optimization_3[] = {
 170         {0,             "Network Address Acquisition management messages during"
 171                         " current reentry processing required"},
 172         {1,             "Omit Network Address Acquisition management messages"
 173                         " during current reentry processing"},
 174         {0,             NULL}
 175 };
 176
 177 static const value_string vals_rng_rsp_ho_process_optimization_4[] = {
 178         {0,             "Time of Day Acquisition management messages during"
 179                         " current reentry processing required"},
 180         {1,             "Omit Time of Day Acquisition management messages"
 181                         " during current reentry processing"},
 182         {0,             NULL}
 183 };
 184
 185 static const value_string vals_rng_rsp_ho_process_optimization_5[] = {
 186         {0,             "TFTP management messages during current re-entry"
 187                         " processing required"},
 188         {1,             "Omit TFTP management messages during current re-entry"
 189                         " processing"},
 190         {0,             NULL}
 191 };
 192
 193 static const value_string vals_rng_rsp_ho_process_optimization_6[] = {
 194         {0,             "Full service and operational state transfer or sharing"
 195                         " between Serving BS and Target BS required"},
 196         {1,             "Omit Full service and operational state transfer or"
 197                         " sharing between Serving BS and Target BS"},
 198         {0,             NULL}
 199 };
 200
 201 static const value_string vals_rng_rsp_ho_process_optimization_7[] = {
 202         {0,             "REG-REQ management message during current re-entry"
 203                         " processing required"},
 204         {1,             "Omit REG-REQ management message during current re-entry"
 205                         " processing"},
 206         {0,             NULL}
 207 };
 208
 209 static const value_string vals_rng_rsp_ho_process_optimization_8[] = {
 210         {0,             "BS shall send not send an unsolicited SBC-RSP"
 211                         " management message"},
 212         {1,             "BS shall send an unsolicited SBC-RSP management message"},
 213         {0,             NULL}
 214 };
 215
 216 static const value_string vals_rng_rsp_ho_process_optimization_9[] = {
 217         {0,             "No post-HO re-entry MS DL data pending at target BS"},
 218         {1,             "post-HO re-entry MS DL data pending at target BS"},
 219         {0,             NULL}
 220 };
 221
 222 static const value_string vals_rng_rsp_ho_process_optimization_10[] = {
 223         {0,             "BS shall not send an unsolicited REG-RSP management"
 224                         " message"},
 225         {1,             "BS shall send an unsolicited REG-RSP management message"},
 226         {0,             NULL}
 227 };
 228
 229 static const value_string vals_rng_rsp_ho_process_optimization_11[] = {
 230         {0,             "(Target) BS does not support virtual SDU SN"},
 231         {1,             "(Target} BS supports virtual SDU SN"},
 232         {0,             NULL}
 233 };
 234
 235 static const value_string vals_rng_rsp_ho_process_optimization_12[] = {
 236         {0,             "MS shall not send a notification of MS's successful"
 237                         " re-entry registration"},
 238         {1,             "MS shall send a notification of MS's successful"
 239                         " re-entry registration"},
 240         {0,             NULL}
 241 };
 242
 243 static const value_string vals_rng_rsp_ho_process_optimization_13[] = {
 244         {0,             "MS shall not trigger a higher layer protocol required"
 245                         " to refresh its traffic IP address"},
 246         {1,             "MS shall trigger a higher layer protocol required to"
 247                         " refresh its traffic IP address"},
 248         {0,             NULL}
 249 };
 250
 251 static const value_string vals_rng_rsp_repetition_coding_indication[] = {
 252         {0,             "No repetition coding"},
 253         {1,             "Repetition coding of 2"},
 254         {2,             "Repetition coding of 4"},
 255         {3,             "Repetition coding of 6"},
 256         {0,             NULL}
 257 };
 258
 259 static const value_string vals_rng_rsp_location_update_response[] = {
 260         {0,             "Success of Location Update"},
 261         {1,             "Failure of Location Update"},
 262         {3,             "Success of location update and DL traffic pending"},
 263         {4,             "Reserved"},
 264         {0,             NULL}
 265 };
 266
 267
 268 /* Decode RNG-RSP messages. */
 269 static void dissect_mac_mgmt_msg_rng_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 270 {
 271         proto_item *ranging_status_item = NULL;
 272         proto_item *dl_freq_override_item = NULL;
 273         proto_item *ss_mac_address_item = NULL;
 274         proto_item *frame_number_item = NULL;
 275         proto_item *opportunity_number_item = NULL;
 276
 277         guint offset = 0;
 278         guint tlv_offset;
 279         guint tvb_len;
 280         proto_item *rng_rsp_item, *sub_item;
 281         proto_item *tlv_item = NULL;
 282         proto_tree *rng_rsp_tree;
 283         proto_tree *sub_tree = NULL;
 284         tlv_info_t tlv_info;
 285         gint tlv_type;
 286         guint tlv_len;
 287         guint this_offset = 0;
 288         tlv_info_t sub_tlv_info;
 289         gint sub_tlv_type;
 290         gint sub_tlv_len;
 291         guint sub_tlv_offset;
 292         float timing_adjust;
 293         float power_level_adjust;
 294
 295         {       /* we are being asked for details */
 296
 297                 /* Get the tvb reported length */
 298                 tvb_len =  tvb_reported_length(tvb);
 299                 /* display MAC payload type RNG-RSP */
 300                 rng_rsp_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tvb_len, "MAC Management Message, RNG-RSP");
 301                 /* add MAC RNG-RSP subtree */
 302                 rng_rsp_tree = proto_item_add_subtree(rng_rsp_item, ett_mac_mgmt_msg_rng_rsp_decoder);
 303
 304                 proto_tree_add_item(rng_rsp_tree, hf_rng_req_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
 305                 offset += 1;
 306
 307                 while(offset < tvb_len)
 308                 {
 309                         /* Get the TLV data. */
 310                         init_tlv_info(&tlv_info, tvb, offset);
 311                         /* get the TLV type */
 312                         tlv_type = get_tlv_type(&tlv_info);
 313                         /* get the TLV length */
 314                         tlv_len = get_tlv_length(&tlv_info);
 315                         if(tlv_type == -1 || tlv_len > MAX_TLV_LEN || tlv_len < 1)
 316                         {       /* invalid tlv info */
 317                                 col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "RNG-RSP TLV error");
 318                                 proto_tree_add_item(rng_rsp_tree, hf_rng_invalid_tlv, tvb, offset, (tvb_len - offset), ENC_NA);
 319                                 break;
 320                         }
 321                         /* get the offset to the TLV data */
 322                         tlv_offset = offset + get_tlv_value_offset(&tlv_info);
 323
 324                         switch (tlv_type) {
 325                                 case RNG_RSP_TIMING_ADJUST: {
 326                                         sub_tree = add_tlv_subtree_no_item(&tlv_info, rng_rsp_tree, hf_rng_rsp_timing_adjust, tvb, offset);
 327                                         timing_adjust = (float)(tvb_get_ntohl(tvb, tlv_offset) / 4.0);
 328                                         tlv_item = proto_tree_add_float_format_value(sub_tree, hf_rng_rsp_timing_adjust, tvb,
 329                                                 tlv_offset, 4, timing_adjust, " %.2f modulation symbols", timing_adjust);
 330                                         if ((timing_adjust < -2) || (timing_adjust > 2))
 331                                                 proto_item_append_text(tlv_item, " (during periodic ranging shall not exceed +- 2)");
 332                                         break;
 333                                 }
 334                                 case RNG_RSP_POWER_LEVEL_ADJUST: {
 335                                         sub_tree = add_tlv_subtree_no_item(&tlv_info, rng_rsp_tree, hf_rng_rsp_power_level_adjust, tvb, offset);
 336                                         power_level_adjust = (float)(tvb_get_guint8(tvb, tlv_offset) / 4.0);
 337                                         proto_tree_add_float_format_value(sub_tree, hf_rng_rsp_power_level_adjust, tvb, tlv_offset, 1,
 338                                                                 power_level_adjust, " %.2f dB", power_level_adjust);
 339                                         break;
 340                                 }
 341                                 case RNG_RSP_OFFSET_FREQ_ADJUST: {
 342                                         tlv_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_offset_freq_adjust, tvb, offset, ENC_BIG_ENDIAN);
 343                                         proto_item_append_text(tlv_item, " Hz");
 344                                         break;
 345                                 }
 346                                 case RNG_RSP_RANGING_STATUS:
 347                                         ranging_status_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_ranging_status, tvb, offset, ENC_BIG_ENDIAN);
 348                                         break;
 349                                 case RNG_RSP_DL_FREQ_OVERRIDE: {
 350                                         dl_freq_override_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_dl_freq_override, tvb, offset, ENC_BIG_ENDIAN);
 351                                         proto_item_append_text(dl_freq_override_item, " kHz");
 352                                         break;
 353                                 }
 354                                 case RNG_RSP_UL_CHANNEL_ID_OVERRIDE:
 355                                         add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_ul_chan_id_override, tvb, offset, ENC_BIG_ENDIAN);
 356                                         break;
 357                                 case RNG_RSP_DL_OPERATIONAL_BURST_PROFILE:
 358                                         sub_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_dl_operational_burst_profile, tvb, offset, ENC_BIG_ENDIAN);
 359                                         sub_tree = proto_item_add_subtree(sub_item, ett_rng_rsp_message_tree);
 360                                         proto_tree_add_item(sub_tree, hf_rng_rsp_dl_operational_burst_profile_diuc, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 361                                         proto_tree_add_item(sub_tree, hf_rng_rsp_dl_operational_burst_profile_ccc, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 362                                         break;
 363                                 case RNG_RSP_SS_MAC_ADDRESS:
 364                                         if (tlv_len == 6)
 365                                         {
 366                                                 add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_ss_mac_address, tvb, offset, ENC_NA);
 367                                         } else {
 368                                                 add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_invalid_tlv, tvb, offset, ENC_NA);
 369                                         }
 370                                         break;
 371                                 case RNG_RSP_BASIC_CID:
 372                                         add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_basic_cid, tvb, offset, ENC_BIG_ENDIAN);
 373                                         break;
 374                                 case RNG_RSP_PRIMARY_MGMT_CID:
 375                                         add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_primary_mgmt_cid, tvb, offset, ENC_BIG_ENDIAN);
 376                                         break;
 377                                 case RNG_RSP_AAS_BROADCAST_PERMISSION:
 378                                         add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_broadcast, tvb, offset, ENC_BIG_ENDIAN);
 379                                         break;
 380                                 case RNG_RSP_FRAME_NUMBER:
 381                                         frame_number_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_frame_number, tvb, offset, ENC_BIG_ENDIAN);
 382                                         break;
 383                                 case RNG_RSP_OPPORTUNITY_NUMBER:
 384                                         opportunity_number_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_opportunity_number, tvb, offset, ENC_BIG_ENDIAN);
 385                                         if (tvb_get_ntohl(tvb, tlv_offset) == 0)
 386                                                 proto_item_append_text(opportunity_number_item, " (may not be 0!)");
 387                                         break;
 388                                 case RNG_RSP_SERVICE_LEVEL_PREDICTION:
 389                                         add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_service_level_prediction, tvb, offset, ENC_BIG_ENDIAN);
 390                                         break;
 391                                 case RNG_RSP_RESOURCE_RETAIN_FLAG:
 392                                         add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_resource_retain_flag, tvb, offset, ENC_BIG_ENDIAN);
 393                                         break;
 394                                 case RNG_RSP_HO_PROCESS_OPTIMIZATION:
 395                                         sub_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_ho_process_optimization, tvb, offset, ENC_BIG_ENDIAN);
 396                                         sub_tree = proto_item_add_subtree(sub_item, ett_rng_rsp_message_tree);
 397                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_0, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 398                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_1_2, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 399                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_3, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 400                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_4, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 401                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_5, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 402                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_6, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 403                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_7, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 404                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_8, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 405                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_9, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 406                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_10, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 407                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_11, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 408                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_12, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 409                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_13, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 410                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_14, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 411                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_15, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 412                                         break;
 413                                 case RNG_RSP_SBC_RSP_ENCODINGS:
 414                                         sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "SBC-RSP Encodings");
 415                                         call_dissector(sbc_rsp_handle, tvb_new_subset_length(tvb, tlv_offset, tlv_len), pinfo, sub_tree);
 416                                         break;
 417                                 case RNG_RSP_REG_RSP_ENCODINGS:
 418                                         sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "REG-RSP Encodings");
 419                                         call_dissector(reg_rsp_handle, tvb_new_subset_length(tvb, tlv_offset, tlv_len), pinfo, sub_tree);
 420                                         break;
 421                                 /* Implemented message encoding 33 (Table 367 in IEEE 802.16e-2007) */
 422                                 case RNG_RSP_DL_OP_BURST_PROFILE_OFDMA:
 423                                         sub_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_dl_op_burst_profile_ofdma, tvb, offset, ENC_BIG_ENDIAN);
 424                                         sub_tree = proto_item_add_subtree(sub_item, ett_rng_rsp_message_tree);
 425                                         proto_tree_add_item(sub_tree, hf_rng_rsp_least_robust_diuc, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 426                                         proto_tree_add_item(sub_tree, hf_rng_rsp_repetition_coding_indication, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 427                                         proto_tree_add_item(sub_tree, hf_rng_rsp_config_change_count_of_dcd, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 428                                         break;
 429                                 case RNG_RSP_HO_ID:
 430                                         add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_ho_id, tvb, offset, ENC_BIG_ENDIAN);
 431                                         break;
 432                                 case RNG_RSP_LOCATION_UPDATE_RESPONSE:
 433                                         add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_location_update_response, tvb, offset, ENC_BIG_ENDIAN);
 434                                         break;
 435                                 case RNG_RSP_PAGING_INFORMATION:
 436                                         sub_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_paging_information, tvb, offset, ENC_NA);
 437                                         sub_tree = proto_item_add_subtree(sub_item, ett_rng_rsp_message_tree);
 438                                         proto_tree_add_item(sub_tree, hf_rng_rsp_paging_cycle, tvb, tlv_offset, 2, ENC_BIG_ENDIAN);
 439                                         proto_tree_add_item(sub_tree, hf_rng_rsp_paging_offset, tvb, tlv_offset+2, 1, ENC_BIG_ENDIAN);
 440                                         proto_tree_add_item(sub_tree, hf_rng_rsp_paging_group_id, tvb, tlv_offset+3, 2, ENC_BIG_ENDIAN);
 441                                         break;
 442                                 case RNG_RSP_POWER_SAVING_CLASS_PARAMETERS:
 443                                         sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "Power Saving Class Parameters");
 444                                         dissect_power_saving_class(sub_tree, tlv_type, tvb, tlv_len, pinfo, tlv_offset);
 445                                         break;
 446                                 case RNG_RSP_SA_CHALLENGE_TUPLE:
 447                                         /* Display SA Challenge Tuple header */
 448                                         sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "SA Challenge Tuple");
 449                                         /* add subtree */
 450                                         /* Use a local copy of tlv_offset */
 451                                         this_offset = tlv_offset;
 452                                         while(this_offset < tlv_len) {
 453                                                 /* Get the sub TLV data. */
 454                                                 init_tlv_info(&sub_tlv_info, tvb, this_offset);
 455                                                 /* get the sub TLV type */
 456                                                 sub_tlv_type = get_tlv_type(&sub_tlv_info);
 457                                                 /* get the TLV length */
 458                                                 sub_tlv_len = get_tlv_length(&sub_tlv_info);
 459                                                 if(tlv_type == -1 || sub_tlv_len > MAX_TLV_LEN || sub_tlv_len < 1)
 460                                                 {       /* invalid tlv info */
 461                                                         col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "RNG-RSP TLV error");
 462                                                         proto_tree_add_item(rng_rsp_tree, hf_rng_invalid_tlv, tvb, tlv_offset, (tvb_len - offset), ENC_NA);
 463                                                         break;
 464                                                 }
 465                                                 /* get the offset to the sub TLV data */
 466                                                 sub_tlv_offset = this_offset + get_tlv_value_offset(&sub_tlv_info);
 467                                                 switch (sub_tlv_type) {
 468                                                         case RNG_RSP_SA_CHALLENGE_BS_RANDOM:
 469                                                                 add_tlv_subtree(&sub_tlv_info, sub_tree, hf_rng_rsp_bs_random, tvb, this_offset, ENC_NA);
 470                                                                 break;
 471                                                         case RNG_RSP_SA_CHALLENGE_AKID:
 472                                                                 add_tlv_subtree(&sub_tlv_info, sub_tree, hf_rng_rsp_akid, tvb, this_offset, ENC_NA);
 473                                                                 break;
 474                                                         default:
 475                                                                 add_tlv_subtree(&sub_tlv_info, sub_tree, hf_tlv_type, tvb, this_offset, ENC_NA);
 476                                                                 break;
 477                                                 }
 478                                                 this_offset = sub_tlv_len + sub_tlv_offset;
 479                                         }
 480                                         break;
 481                                 case DSx_UPLINK_FLOW:
 482                                         /* display Uplink Service Flow Encodings info */
 483                                         /* add subtree */
 484                                         sub_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_rng_rsp_decoder, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "Uplink QOS Parameters");
 485                                         /* decode and display the DL Service Flow Encodings */
 486                                         wimax_service_flow_encodings_decoder(tvb_new_subset_length(tvb, tlv_offset, tlv_len), pinfo, sub_tree);
 487                                         break;
 488                                 case DSx_DOWNLINK_FLOW:
 489                                         /* display Downlink Service Flow Encodings info */
 490                                         /* add subtree */
 491                                         sub_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_rng_rsp_decoder, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "Downlink QOS Parameters");
 492                                         /* decode and display the DL Service Flow Encodings */
 493                                         wimax_service_flow_encodings_decoder(tvb_new_subset_length(tvb, tlv_offset, tlv_len), pinfo, sub_tree);
 494                                         break;
 495                                 case RNG_RSP_RANGING_CODE_ATTRIBUTES:
 496                                 /* case SHORT_HMAC_TUPLE: */
 497                                         sub_item = add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_rng_rsp_ranging_subchan, tvb, offset, ENC_BIG_ENDIAN);
 498                                         sub_tree = proto_item_add_subtree(sub_item, ett_rng_rsp_message_tree);
 499                                         proto_tree_add_item(sub_tree, hf_rng_rsp_time_symbol_reference, tvb, tlv_offset, 4, ENC_BIG_ENDIAN);
 500                                         proto_tree_add_item(sub_tree, hf_rng_rsp_subchannel_reference, tvb, tlv_offset, 4, ENC_BIG_ENDIAN);
 501                                         proto_tree_add_item(sub_tree, hf_rng_rsp_ranging_code_index, tvb, tlv_offset, 4, ENC_BIG_ENDIAN);
 502                                         proto_tree_add_item(sub_tree, hf_rng_rsp_frame_number2, tvb, tlv_offset, 4, ENC_BIG_ENDIAN);
 503                                         break;
 504                                 case SHORT_HMAC_TUPLE_COR2:
 505                                         if (include_cor2_changes) {
 506                                                 sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tlv_len, "Short HMAC Tuple");
 507                                                 wimax_short_hmac_tuple_decoder(sub_tree, tvb, tlv_offset, tvb_len - offset);
 508                                         } else {
 509                                                 /* Unknown TLV type */
 510                                                 add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_tlv_type, tvb, offset, ENC_NA);
 511                                         }
 512                                         break;
 513
 514                                 default:
 515                                         add_tlv_subtree(&tlv_info, rng_rsp_tree, hf_tlv_type, tvb, offset, ENC_NA);
 516                                         break;
 517
 518                         }
 519                         offset = tlv_len + tlv_offset;
 520                 }       /* end of TLV process while loop */
 521                 if (ranging_status_item && dl_freq_override_item)
 522                         proto_item_append_text(ranging_status_item, " (shall be set to 2 because Downlink Frequency Override is present)");
 523                 if (ss_mac_address_item && frame_number_item) {
 524                         proto_item_append_text(frame_number_item, " (mutually exclusive with SS MAC Address!)");
 525                         proto_item_append_text(ss_mac_address_item, " (mutually exclusive with Frame Number!)");
 526                 }
 527                 if (ss_mac_address_item && opportunity_number_item) {
 528                         proto_item_append_text(opportunity_number_item, " (mutually exclusive with SS MAC Address!)");
 529                         proto_item_append_text(ss_mac_address_item, " (mutually exclusive with Initial Ranging Opportunity Number!)");
 530                 }
 531                 if (!ranging_status_item)
 532                         proto_item_append_text(rng_rsp_tree, " (Ranging status is missing!)");
 533
 534         }
 535 }
 536
 537
 538 /* Register Wimax Mac Payload Protocol and Dissector */
 539 void proto_register_mac_mgmt_msg_rng_rsp(void)
 540 {
 541         /* RNG-RSP fields display */
 542         static hf_register_info hf[] =
 543         {
 544                 {
 545                         &hf_rng_rsp_broadcast,
 546                         {
 547                                 "AAS broadcast permission", "wmx.rng_rsp.aas_broadcast",
 548                                 FT_BOOLEAN, BASE_NONE, TFS(&tfs_rng_rsp_aas_broadcast), 0x0, NULL, HFILL
 549                         }
 550                 },
 551                 {
 552                         &hf_rng_rsp_akid,
 553                         {
 554                                 "AKId", "wmx.rng_rsp.akid",
 555                                 FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL
 556                         }
 557                 },
 558                 {
 559                         &hf_rng_rsp_basic_cid,
 560                         {
 561                                 "Basic CID", "wmx.rng_rsp.basic_cid",
 562                                 FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL
 563                         }
 564                 },
 565                 {
 566                         &hf_rng_rsp_bs_random,
 567                         {
 568                                 "BS_Random", "wmx.rng_rsp.bs_random",
 569                                 FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL
 570                         }
 571                 },
 572                 {
 573                         &hf_rng_rsp_config_change_count_of_dcd,
 574                         {
 575                                 "Configuration Change Count value of DCD defining DIUC associated burst profile", "wmx.rng_rsp.config_change_count_of_dcd",
 576                                 FT_UINT16, BASE_HEX, NULL, 0xFF00, NULL, HFILL
 577                         }
 578                 },
 579                 {
 580                         &hf_rng_rsp_dl_freq_override,
 581                         {
 582                                 "Downlink Frequency Override", "wmx.rng_rsp.dl_freq_override",
 583                                 FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL
 584                         }
 585                 },
 586                 {
 587                         &hf_rng_rsp_dl_operational_burst_profile_ccc,
 588                         {
 589                                 "CCC value of DCD defining the burst profile associated with DIUC", "wmx.rng_rsp.dl_op_burst_prof.ccc",
 590                                 FT_UINT16, BASE_DEC, NULL, 0x00FF, NULL, HFILL
 591                         }
 592                 },
 593                 {
 594                         &hf_rng_rsp_dl_operational_burst_profile_diuc,
 595                         {
 596                                 "The least robust DIUC that may be used by the BS for transmissions to the SS", "wmx.rng_rsp.dl_op_burst_prof.diuc",
 597                                 FT_UINT16, BASE_DEC, NULL, 0xFF00, NULL, HFILL
 598                         }
 599                 },
 600                 {
 601                         &hf_rng_rsp_dl_operational_burst_profile,
 602                         {
 603                                 "Downlink Operational Burst Profile", "wmx.rng_rsp.dl_op_burst_profile",
 604                                 FT_UINT16, BASE_HEX, NULL, 0x00, NULL, HFILL
 605                         }
 606                 },
 607                 /* Added the following to help implement RNG-RSP message encoding 33 (Table 367 in IEEE 802.16e-2007) */
 608                 {
 609                         &hf_rng_rsp_dl_op_burst_profile_ofdma,
 610                         {
 611                                 "Downlink Operational Burst Profile for OFDMA", "wmx.rng_rsp.dl_op_burst_profile_ofdma",
 612                                 FT_UINT16, BASE_HEX, NULL, 0x00, NULL, HFILL
 613                         }
 614                 },
 615                 {
 616                         &hf_rng_rsp_frame_number2,
 617                         {
 618                                 "The 8 least significant bits of the frame number of the OFDMA frame where the SS sent the ranging code", "wmx.rng_rsp.eight_bit_frame_num",
 619                                 FT_UINT32, BASE_DEC, NULL, 0x000000FF, NULL, HFILL
 620                         }
 621                 },
 622                 {
 623                         &hf_rng_rsp_frame_number,
 624                         {
 625                                 "Frame number", "wmx.rng_rsp.frame_number",
 626                                 FT_UINT24, BASE_DEC, NULL, 0x00, NULL, HFILL
 627                         }
 628                 },
 629                 /* Added the following to help implement RNG-RSP message encoding 22 (IEEE 802.16e-2007) */
 630                 {
 631                         &hf_rng_rsp_ho_id,
 632                         {
 633                                 "HO ID", "wmx.rng_rsp.ho_id",
 634                                 FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL
 635                         }
 636                 },
 637                 {
 638                         &hf_rng_rsp_ho_process_optimization,
 639                         {
 640                                 "HO Process Optimization", "wmx.rng_rsp.ho_process_optimization",
 641                                 FT_UINT16, BASE_HEX, NULL, 0x0000, NULL, HFILL
 642                         }
 643                 },
 644                 {
 645                         &hf_rng_rsp_ho_process_optimization_0,
 646                         {
 647                                 "Bit #0", "wmx.rng_rsp.ho_process_optimization.omit_sbc_req",
 648                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_ho_process_optimization_0), 0x0001, NULL, HFILL
 649                         }
 650                 },
 651                 {
 652                         &hf_rng_rsp_ho_process_optimization_1_2,
 653                         {
 654                                 "Bits #1-2", "wmx.rng_rsp.ho_process_optimization.perform_reauthentication",
 655                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_ho_process_optimization_1_2), 0x0006, NULL, HFILL
 656                         }
 657                 },
 658                 {
 659                         &hf_rng_rsp_ho_process_optimization_3,
 660                         {
 661                                 "Bit #3", "wmx.rng_rsp.ho_process_optimization.omit_network_address",
 662                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_ho_process_optimization_3), 0x0008, NULL, HFILL
 663                         }
 664                 },
 665                 {
 666                         &hf_rng_rsp_ho_process_optimization_4,
 667                         {
 668                                 "Bit #4", "wmx.rng_rsp.ho_process_optimization.omit_time_of_day",
 669                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_ho_process_optimization_4), 0x0010, NULL, HFILL
 670                         }
 671                 },
 672                 {
 673                         &hf_rng_rsp_ho_process_optimization_5,
 674                         {
 675                                 "Bit #5", "wmx.rng_rsp.ho_process_optimization.omit_tftp",
 676                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_ho_process_optimization_5), 0x0020, NULL, HFILL
 677                         }
 678                 },
 679                 {
 680                         &hf_rng_rsp_ho_process_optimization_6,
 681                         {
 682                                 "Bit #6", "wmx.rng_rsp.ho_process_optimization.transfer_or_sharing",
 683                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_ho_process_optimization_6), 0x0040, NULL, HFILL
 684                         }
 685                 },
 686                 {
 687                         &hf_rng_rsp_ho_process_optimization_7,
 688                         {
 689                                 "Bit #7", "wmx.rng_rsp.ho_process_optimization.omit_reg_req",
 690                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_ho_process_optimization_7), 0x0080, NULL, HFILL
 691                         }
 692                 },
 693                 {
 694                         &hf_rng_rsp_ho_process_optimization_8,
 695                         {
 696                                 "Bit #8", "wmx.rng_rsp.ho_process_optimization.unsolicited_sbc_rsp",
 697                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_ho_process_optimization_8), 0x0100, NULL, HFILL
 698                         }
 699                 },
 700                 {
 701                         &hf_rng_rsp_ho_process_optimization_9,
 702                         {
 703                                 "Bit #9", "wmx.rng_rsp.ho_process_optimization.post_ho_reentry",
 704                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_ho_process_optimization_9), 0x0200, NULL, HFILL
 705                         }
 706                 },
 707                 {
 708                         &hf_rng_rsp_ho_process_optimization_10,
 709                         {
 710                                 "Bit #10", "wmx.rng_rsp.ho_process_optimization.unsolicited_reg_rsp",
 711                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_ho_process_optimization_10), 0x0400, NULL, HFILL
 712                         }
 713                 },
 714                 {
 715                         &hf_rng_rsp_ho_process_optimization_11,
 716                         {
 717                                 "Bit #11", "wmx.rng_rsp.ho_process_optimization.virtual_sdu_sn",
 718                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_ho_process_optimization_11), 0x0800, NULL, HFILL
 719                         }
 720                 },
 721                 {
 722                         &hf_rng_rsp_ho_process_optimization_12,
 723                         {
 724                                 "Bit #12", "wmx.rng_rsp.ho_process_optimization.send_notification",
 725                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_ho_process_optimization_12), 0x1000, NULL, HFILL
 726                         }
 727                 },
 728                 {
 729                         &hf_rng_rsp_ho_process_optimization_13,
 730                         {
 731                                 "Bit #13", "wmx.rng_rsp.ho_process_optimization.trigger_higher_layer_protocol",
 732                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_ho_process_optimization_13), 0x2000, NULL, HFILL
 733                         }
 734                 },
 735                 {
 736                         &hf_rng_rsp_ho_process_optimization_14,
 737                         {
 738                                 "Bit #14: Reserved", "wmx.rng_rsp.ho_process_optimization.reserved",
 739                                 FT_UINT16, BASE_HEX, NULL, 0x4000, NULL, HFILL
 740                         }
 741                 },
 742                 {
 743                         &hf_rng_rsp_ho_process_optimization_15,
 744                         {
 745                                 "Bit #15: Reserved", "wmx.rng_rsp.ho_process_optimization.reserved",
 746                                 FT_UINT16, BASE_HEX, NULL, 0x8000, NULL, HFILL
 747                         }
 748                 },
 749                 {
 750                         &hf_rng_invalid_tlv,
 751                         {
 752                                 "Invalid TLV", "wmx.rng_rsp.invalid_tlv",
 753                                 FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
 754                         }
 755                 },
 756                 {
 757                         &hf_rng_rsp_least_robust_diuc,
 758                         {
 759                                 "Least Robust DIUC that may be used by the BS for transmissions to the MS", "wmx.rng_rsp.least_robust_diuc",
 760                                 FT_UINT16, BASE_HEX, NULL, 0x000F, NULL, HFILL
 761                         }
 762                 },
 763                 {
 764                         &hf_rng_rsp_location_update_response,
 765                         {
 766                                 "Location Update Response", "wmx.rng_rsp.location_update_response",
 767                                 FT_UINT8, BASE_DEC, VALS(vals_rng_rsp_location_update_response), 0xFF, NULL, HFILL
 768                         }
 769                 },
 770                 {
 771                         &hf_rng_rsp_offset_freq_adjust,
 772                         {
 773                                 "Offset Frequency Adjust", "wmx.rng_rsp.offset_freq_adjust",
 774                                 FT_INT32, BASE_DEC, NULL, 0x00, NULL, HFILL
 775                         }
 776                 },
 777                 {
 778                         &hf_rng_rsp_opportunity_number,
 779                         {
 780                                 "Initial ranging opportunity number", "wmx.rng_rsp.opportunity_number",
 781                                 FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL
 782                         }
 783                 },
 784                 {
 785                         &hf_rng_rsp_paging_cycle,
 786                         {
 787                                 "Paging Cycle", "wmx.rng_rsp.paging_cycle",
 788                                 FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL
 789                         }
 790                 },
 791                 {
 792                         &hf_rng_rsp_paging_group_id,
 793                         {
 794                                 "Paging Group ID", "wmx.rng_rsp.paging_group_id",
 795                                 FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL
 796                         }
 797                 },
 798                 {
 799                         &hf_rng_rsp_paging_information,
 800                         {
 801                                 "Paging Information", "wmx.rng_rsp.paging_information",
 802                                 FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL
 803                         }
 804                 },
 805                 {
 806                         &hf_rng_rsp_paging_offset,
 807                         {
 808                                 "Paging Offset", "wmx.rng_rsp.paging_offset",
 809                                 FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL
 810                         }
 811                 },
 812                 {
 813                         &hf_rng_rsp_power_level_adjust,
 814                         {
 815                                 "Power Level Adjust", "wmx.rng_rsp.power_level_adjust",
 816                                 FT_FLOAT, BASE_NONE, NULL, 0x00, NULL, HFILL
 817                         }
 818                 },
 819                 {
 820                         &hf_rng_rsp_primary_mgmt_cid,
 821                         {
 822                                 "Primary Management CID", "wmx.rng_rsp.primary_mgmt_cid",
 823                                 FT_UINT16, BASE_DEC, NULL, 0x00, NULL, HFILL
 824                         }
 825                 },
 826                 {
 827                         &hf_rng_rsp_ranging_code_index,
 828                         {
 829                                 "The ranging code index that was sent by the SS", "wmx.rng_rsp.ranging_code_index",
 830                                 FT_UINT32, BASE_DEC, NULL, 0x0000FF00, NULL, HFILL
 831                         }
 832                 },
 833                 {
 834                         &hf_rng_rsp_ranging_status,
 835                         {
 836                                 "Ranging status", "wmx.rng_rsp.ranging_status",
 837                                 FT_UINT8, BASE_DEC, VALS(vals_rng_rsp_ranging_status), 0x00, NULL, HFILL
 838                         }
 839                 },
 840                 {
 841                         &hf_rng_rsp_ranging_subchan,
 842                         {
 843                                 "Ranging code attributes", "wmx.rng_rsp.ranging_subchannel",
 844                                 FT_UINT32, BASE_HEX, NULL, 0x00, NULL, HFILL
 845                         }
 846                 },
 847                 {
 848                         &hf_rng_rsp_repetition_coding_indication,
 849                         {
 850                                 "Repetition Coding Indication", "wmx.rng_rsp.repetition_coding_indication",
 851                                 FT_UINT16, BASE_HEX, VALS(vals_rng_rsp_repetition_coding_indication), 0x00F0, NULL, HFILL
 852                         }
 853                 },
 854                 {
 855                         &hf_rng_req_reserved,
 856                         {
 857                                 "Reserved", "wmx.rng_rsp.reserved",
 858                                 FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL
 859                         }
 860                 },
 861                 {
 862                         &hf_rng_rsp_resource_retain_flag,
 863                         {
 864                                 "The connection information for the MS is", "wmx.rng_rsp.resource_retain_flag",
 865                                 FT_BOOLEAN, BASE_NONE, TFS(&tfs_rng_rsp_resource_retain_flag), 0x0, NULL, HFILL
 866                         }
 867                 },
 868                 {
 869                         &hf_rng_rsp_service_level_prediction,
 870                         {
 871                                 "Service Level Prediction", "wmx.rng_rsp.service_level_prediction",
 872                                 FT_UINT8, BASE_DEC, VALS(vals_rng_rsp_level_of_service), 0x00, NULL, HFILL
 873                         }
 874                 },
 875                 {
 876                         &hf_rng_rsp_ss_mac_address,
 877                         {
 878                                 "SS MAC Address", "wmx.rng_rsp.ss_mac_address",
 879                                 FT_ETHER, BASE_NONE, NULL, 0x00, NULL, HFILL
 880                         }
 881                 },
 882                         {
 883                         &hf_rng_rsp_subchannel_reference,
 884                         {
 885                                 "OFDMA subchannel reference used to transmit the ranging code", "wmx.rng_rsp.subchannel_reference",
 886                                 FT_UINT32, BASE_DEC, NULL, 0x003f0000, NULL, HFILL
 887                         }
 888                 },
 889                         {
 890                         &hf_rng_rsp_time_symbol_reference,
 891                         {
 892                                 "OFDM time symbol reference used to transmit the ranging code", "wmx.rng_rsp.time_symbol_reference",
 893                                 FT_UINT32, BASE_DEC, NULL, 0xFFC00000, NULL, HFILL
 894                         }
 895                 },
 896                 {
 897                         &hf_rng_rsp_timing_adjust,
 898                         {
 899                                 "Timing Adjust", "wmx.rng_rsp.timing_adjust",
 900                                 FT_FLOAT, BASE_NONE, NULL, 0x00, NULL, HFILL
 901                         }
 902                 },
 903 #if 0
 904                 {
 905                         &hf_rng_rsp_ul_channel_id,
 906                         {
 907                                 "Uplink Channel ID", "wmx.rng_rsp.ul_chan_id",
 908                                 FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL
 909                         }
 910                 },
 911 #endif
 912                 {
 913                         &hf_rng_rsp_ul_chan_id_override,
 914                         {
 915                                 "Uplink channel ID Override", "wmx.rng_rsp.ul_chan_id_override",
 916                                 FT_UINT8, BASE_DEC, NULL, 0x00, NULL, HFILL
 917                         }
 918                 },
 919                 {
 920                         &hf_tlv_type,
 921                         {
 922                                 "Unknown TLV Type", "wmx.rng_rsp.unknown_tlv_type",
 923                                 FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL
 924                         }
 925                 },
 926 #if 0
 927                 {
 928                         &hf_tlv_value,
 929                         {
 930                                 "Value", "wmx.rng_rsp.tlv_value",
 931                                 FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL
 932                         }
 933                 }
 934 #endif
 935         };
 936
 937         /* Setup protocol subtree array */
 938         static gint *ett[] =
 939                 {
 940                         &ett_mac_mgmt_msg_rng_rsp_decoder,
 941                         &ett_rng_rsp_message_tree
 942                 };
 943
 944         proto_mac_mgmt_msg_rng_rsp_decoder = proto_register_protocol (
 945                 "WiMax RNG-RSP Messages", /* name       */
 946                 "WiMax RNG-RSP",    /* short name */
 947                 "wmx.rng_rsp"       /* abbrev     */
 948                 );
 949
 950         proto_register_field_array(proto_mac_mgmt_msg_rng_rsp_decoder, hf, array_length(hf));
 951         proto_register_subtree_array(ett, array_length(ett));
 952 }
 953
 954 void proto_reg_handoff_mac_mgmt_msg_rng_rsp(void)
 955 {
 956         dissector_handle_t rng_rsp_handle;
 957
 958         rng_rsp_handle = create_dissector_handle(dissect_mac_mgmt_msg_rng_rsp_decoder, proto_mac_mgmt_msg_rng_rsp_decoder);
 959         dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_RNG_RSP, rng_rsp_handle);
 960
 961         sbc_rsp_handle = find_dissector("mac_mgmt_msg_sbc_rsp_handler");
 962         reg_rsp_handle = find_dissector("mac_mgmt_msg_reg_rsp_handler");
 963 }
 964