epan/dissectors/packet-gmr1_bcch.c

   1 /* packet-gmr1_bcch.c
   2  *
   3  * Routines for GMR-1 BCCH dissection in wireshark.
   4  * Copyright (c) 2011 Sylvain Munaut <tnt@246tNt.com>
   5  *
   6  * References:
   7  *  [1] ETSI TS 101 376-4-8 V1.3.1 - GMR-1 04.008
   8  *  [2] ETSI TS 101 376-4-8 V2.2.1 - GMPRS-1 04.008
   9  *  [3] ETSI TS 101 376-4-8 V3.1.1 - GMR-1 3G 44.008
  10  *
  11  * Wireshark - Network traffic analyzer
  12  * By Gerald Combs <gerald@wireshark.org>
  13  * Copyright 1998 Gerald Combs
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  28  */
  29
  30 #include "config.h"
  31
  32 #include <glib.h>
  33 #include <epan/packet.h>
  34 #include <epan/wmem/wmem.h>
  35
  36 #include "packet-csn1.h"
  37
  38 void proto_register_gmr1_bcch(void);
  39
  40 /* GMR-1 BCCH proto */
  41 static int proto_gmr1_bcch = -1;
  42
  43 /* GMR-1 BCCH sub tree */
  44 static gint ett_gmr1_bcch = -1;
  45
  46
  47 /* ------------------------------------------------------------------------ */
  48 /* CSN1 fields                                                              */
  49 /* ------------------------------------------------------------------------ */
  50
  51 /* Segment 1A fields - [3] 11.5.2.66 */
  52 static int hf_seg1a_class_2_version = -1;
  53 static int hf_seg1a_class_3_version = -1;
  54
  55 static int hf_seg1a_syncinfo_sb_frame_ts_offset = -1;
  56 static int hf_seg1a_syncinfo_sb_symbol_offset = -1;
  57 static int hf_seg1a_syncinfo_sa_freq_offset = -1;
  58
  59 static int hf_seg1a_rachctrl_max_retrans = -1;
  60 static int hf_seg1a_rachctrl_acc[16] = { -1, -1, -1, -1, -1, -1, -1, -1,
  61                                          -1, -1, -1, -1, -1, -1, -1, -1 };
  62 static int hf_seg1a_rachctrl_cell_bar_access = -1;
  63
  64 static int hf_seg1a_miscinfo_sb_reselection_hysteresis = -1;
  65 static int hf_seg1a_miscinfo_spare = -1;
  66 static int hf_seg1a_miscinfo_priority_access_ind = -1;
  67
  68 static int hf_seg1a_gbch_present = -1;
  69 static int hf_seg1a_test_gs = -1;
  70 static int hf_seg1a_test_gs2 = -1;
  71 static int hf_seg1a_spare1 = -1;
  72 static int hf_seg1a_cell_bar_access_extension2 = -1;
  73 static int hf_seg1a_spare2 = -1;
  74 static int hf_seg1a_cell_bar_access_extension = -1;
  75
  76 /* Segment 2A & 2Abis fields - [3] 11.5.2.67 / 11.5.2.68 */
  77 static int hf_seg2a_class_4_version = -1;
  78
  79 static int hf_seg2a_syncinfo_sa_sirfn_delay = -1;
  80 static int hf_seg2a_syncinfo_sa_bcch_stn = -1;
  81 static int hf_seg2a_syncinfo_superframe_num = -1;
  82 static int hf_seg2a_syncinfo_multiframe_num = -1;
  83 static int hf_seg2a_syncinfo_mffn_high_bit = -1;
  84
  85 static int hf_seg2a_selcrit_rxlev_select_min = -1;
  86
  87 static int hf_seg2a_miscinfo_sb_selection_power = -1;
  88
  89 static int hf_seg2a_lainfo_sa_pch_config = -1;
  90 static int hf_seg2a_lainfo_sa_bach_config = -1;
  91 static int hf_seg2a_lainfo_rach_ts_offset = -1;
  92 static int hf_seg2a_lainfo_n_page_occurrences = -1;
  93 static int hf_seg2a_lainfo_imsi_attach_detach_ind = -1;
  94 static int hf_seg2a_lainfo_ecsc_indication = -1;
  95 static int hf_seg2a_lainfo_si_update_ind = -1;
  96
  97 /* Segment 2B fields */
  98 /* Segment 2Bbis fields */
  99
 100 /* Segment 3A fields - [1] 11.5.2.71 */
 101 static int hf_seg3a_lai_mcc = -1;
 102 static int hf_seg3a_lai_mnc = -1;
 103 static int hf_seg3a_lai_lac = -1;
 104 static int hf_seg3a_lai_msc_id = -1;
 105 static int hf_seg3a_lai_spot_beam_id = -1;
 106
 107 static int hf_seg3a_system_sat_id = -1;
 108 static int hf_seg3a_system_sys_id = -1;
 109
 110 static int hf_seg3a_satpos_latitude = -1;
 111 static int hf_seg3a_satpos_longitude = -1;
 112 static int hf_seg3a_satpos_radius = -1;
 113
 114 static int hf_seg3a_beam_latitude = -1;
 115 static int hf_seg3a_beam_longitude = -1;
 116
 117 static int hf_seg3a_miscinfo_sb_reselection_timer = -1;
 118
 119 static int hf_seg3a_spare = -1;
 120
 121 /* Segment 3B fields */
 122 /* Segment 3Bbis fields */
 123 /* Segment 3C fields */
 124 /* Segment 3D fields */
 125 /* Segment 3E fields */
 126 /* Segment 3Ebis fields */
 127 /* Segment 3F fields */
 128 /* Segment 3G fields */
 129 /* Segment 3Gbis fields */
 130 /* Segment 3H fields */
 131 /* Segment 3I fields */
 132 /* Segment 3J fields */
 133 /* Segment 3Jbis fields */
 134 /* Segment 3Kbis fields */
 135 /* Segment 3L fields */
 136 /* Segment 3M fields */
 137 /* Segment 4A fields */
 138 /* Segment 4B fields */
 139 /* Segment 4C fields */
 140 /* Segment 4D fields */
 141 /* Segment 4E fields */
 142 /* Segment 4F fields */
 143 /* Segment 4G fields */
 144 /* Segment 4H fields */
 145 /* Segment 4I fields */
 146 /* Segment 4J fields */
 147 /* Segment 4K fields */
 148
 149 /* System Information fields [1] 10.1.31 & 10.1.32 */
 150 static int hf_si_protocol_version = -1;
 151 static int hf_si_block_type = -1;
 152 static int hf_si_spare = -1;
 153
 154 static int hf_si1_randomization_period = -1;
 155
 156
 157 /* ------------------------------------------------------------------------ */
 158 /* CSN1 parsing structure                                                   */
 159 /* ------------------------------------------------------------------------ */
 160
 161 /* Segments structures */
 162
 163         /* Segment 1A - [3] 11.5.2.66 */
 164 typedef struct {
 165         guint8  SB_FRAME_TS_OFFSET;
 166         gint8   SB_SYMBOL_OFFSET;
 167         gint8   SA_FREQ_OFFSET;
 168 } Seg1A_SyncInfo_t;
 169
 170 typedef struct {
 171         guint8  AC15;
 172         guint8  AC14;
 173         guint8  AC13;
 174         guint8  AC12;
 175         guint8  AC11;
 176         guint8  EC10;
 177         guint8  AC9;
 178         guint8  AC8;
 179         guint8  AC7;
 180         guint8  AC6;
 181         guint8  AC5;
 182         guint8  AC4;
 183         guint8  AC3;
 184         guint8  AC2;
 185         guint8  AC1;
 186         guint8  AC0;
 187 } Seg1A_AccessClasses_t;
 188
 189 typedef struct {
 190         guint8  Max_Retrans;
 191         Seg1A_AccessClasses_t AccessClasses;
 192         guint8  CELL_BAR_ACCESS;
 193 } Seg1A_RACHCtrlParams_t;
 194
 195 typedef struct {
 196         guint8  SB_RESELECTION_HYSTERESIS;
 197         guint8  Spare;
 198         guint8  PriorityAccessInd;
 199 } Seg1A_MiscInfo_t;
 200
 201 typedef struct {
 202         guint8  Class_2_version;
 203         guint8  Class_3_version;
 204         Seg1A_SyncInfo_t SyncInfo;
 205         Seg1A_RACHCtrlParams_t RACHCtrlParams;
 206         Seg1A_MiscInfo_t MiscInfo;
 207         guint8  GBCH_Present;
 208         guint8  Test_GS;
 209         guint8  Test_GS2;
 210         guint8  Spare1;
 211         guint8  CELL_BAR_ACCESS_EXTENSION2;
 212         guint8  Spare2;
 213         guint8  CELL_BAR_ACCESS_EXTENSION;
 214 } Segment1A_t;
 215
 216         /* Segment 2A & 2Abis - [3] 11.5.2.67 / 11.5.2.68 */
 217 typedef struct {
 218         guint8  SA_SIRFN_DELAY;
 219         guint8  SA_BCCH_STN;
 220         guint16 SuperframeNum;
 221         guint8  MultiframeNum;
 222         guint8  MFFN_HighBit;
 223 } Seg2A_SyncInfo_t;
 224
 225 typedef struct {
 226         guint8  RXLEV_SELECT_MIN;
 227 } Seg2A_SelectionCriterion_t;
 228
 229 typedef struct {
 230         guint8  SB_SELECTION_POWER;
 231 } Seg2A_MiscInfo_t;
 232
 233 typedef struct {
 234         guint8  SA_PCH_CONFIG;
 235         guint8  SA_BACH_CONFIG;
 236         guint8  RACH_TS_OFFSET;
 237         guint8  N_Page_Occurrences;
 238         guint8  IMSI_attach_detach_ind;
 239         guint8  ECSC_ind;
 240         guint8  SI_update_ind;
 241 } Seg2A_LAInfo_t;
 242
 243 typedef struct {
 244         guint8  Class_4_version;
 245         Seg2A_SyncInfo_t SyncInfo;
 246         Seg2A_SelectionCriterion_t SelectionCriterion;
 247         Seg2A_MiscInfo_t MiscInfo;
 248         Seg2A_LAInfo_t LAInfo;
 249 } Segment2A_t;
 250
 251 typedef struct {
 252         guint8  Class_4_version;
 253         Seg2A_SyncInfo_t SyncInfo;
 254         Seg2A_SelectionCriterion_t SelectionCriterion;
 255         Seg2A_MiscInfo_t MiscInfo;
 256         Seg2A_LAInfo_t LAInfo;
 257 } Segment2Abis_t;
 258
 259 typedef struct {
 260         guint8 _dummy; /* Remove when dissection is written */
 261 } Segment2B_t;
 262
 263 typedef struct {
 264         guint8 _dummy; /* Remove when dissection is written */
 265 } Segment2Bbis_t;
 266
 267         /* Segment 3A - [1] 11.5.2.71 */
 268 typedef struct {
 269         guint16 MCC;
 270         guint16 MNC;
 271         guint16 LAC;
 272         guint8 MSC_ID;          /* splitted version of LAC */
 273         guint16 Spot_Beam_ID;   /* splitted version of LAC */
 274 } Seg3A_LAI_t;
 275
 276 typedef struct {
 277         guint8 Satellite_ID;
 278         guint8 System_ID;
 279 } Seg3A_System_t;
 280
 281 typedef struct {
 282         gint8   Latitude;
 283         guint16 Longitude;
 284         gint16  Radius;
 285 } Seg3A_SatellitePosition_t;
 286
 287 typedef struct {
 288         gint16  Latitude;
 289         guint16 Longitude;
 290 } Seg3A_BeamPosition_t;
 291
 292 typedef struct {
 293         guint8 SB_RESELECTION_TIMER;
 294 } Seg3A_MiscInfo_t;
 295
 296 typedef struct {
 297         Seg3A_LAI_t LAI;
 298         Seg3A_System_t System;
 299         Seg3A_SatellitePosition_t SatellitePosition;
 300         Seg3A_BeamPosition_t BeamPosition;
 301         Seg3A_MiscInfo_t MiscInfo;
 302         guint8 Spare;
 303 } Segment3A_t;
 304
 305 typedef struct {
 306         guint8 _dummy; /* Remove when dissection is written */
 307 } Segment3B_t;
 308
 309 typedef struct {
 310         guint8 _dummy; /* Remove when dissection is written */
 311 } Segment3Bbis_t;
 312
 313 typedef struct {
 314         guint8 _dummy; /* Remove when dissection is written */
 315 } Segment3C_t;
 316
 317 typedef struct {
 318         guint8 _dummy; /* Remove when dissection is written */
 319 } Segment3D_t;
 320
 321 typedef struct {
 322         guint8 _dummy; /* Remove when dissection is written */
 323 } Segment3E_t;
 324
 325 typedef struct {
 326         guint8 _dummy; /* Remove when dissection is written */
 327 } Segment3Ebis_t;
 328
 329 typedef struct {
 330         guint8 _dummy; /* Remove when dissection is written */
 331 } Segment3F_t;
 332
 333 typedef struct {
 334         guint8 _dummy; /* Remove when dissection is written */
 335 } Segment3G_t;
 336
 337 typedef struct {
 338         guint8 _dummy; /* Remove when dissection is written */
 339 } Segment3Gbis_t;
 340
 341 typedef struct {
 342         guint8 _dummy; /* Remove when dissection is written */
 343 } Segment3H_t;
 344
 345 typedef struct {
 346         guint8 _dummy; /* Remove when dissection is written */
 347 } Segment3I_t;
 348
 349 typedef struct {
 350         guint8 _dummy; /* Remove when dissection is written */
 351 } Segment3J_t;
 352
 353 typedef struct {
 354         guint8 _dummy; /* Remove when dissection is written */
 355 } Segment3Jbis_t;
 356
 357 typedef struct {
 358         guint8 _dummy; /* Remove when dissection is written */
 359 } Segment3Kbis_t;
 360
 361 typedef struct {
 362         guint8 _dummy; /* Remove when dissection is written */
 363 } Segment3L_t;
 364
 365 typedef struct {
 366         guint8 _dummy; /* Remove when dissection is written */
 367 } Segment3M_t;
 368
 369 typedef struct {
 370         guint8 _dummy; /* Remove when dissection is written */
 371 } Segment4A_t;
 372
 373 typedef struct {
 374         guint8 _dummy; /* Remove when dissection is written */
 375 } Segment4B_t;
 376
 377 typedef struct {
 378         guint8 _dummy; /* Remove when dissection is written */
 379 } Segment4C_t;
 380
 381 typedef struct {
 382         guint8 _dummy; /* Remove when dissection is written */
 383 } Segment4D_t;
 384
 385 typedef struct {
 386         guint8 _dummy; /* Remove when dissection is written */
 387 } Segment4E_t;
 388
 389 typedef struct {
 390         guint8 _dummy; /* Remove when dissection is written */
 391 } Segment4F_t;
 392
 393 typedef struct {
 394         guint8 _dummy; /* Remove when dissection is written */
 395 } Segment4G_t;
 396
 397 typedef struct {
 398         guint8 _dummy; /* Remove when dissection is written */
 399 } Segment4H_t;
 400
 401 typedef struct {
 402         guint8 _dummy; /* Remove when dissection is written */
 403 } Segment4I_t;
 404
 405 typedef struct {
 406         guint8 _dummy; /* Remove when dissection is written */
 407 } Segment4J_t;
 408
 409 typedef struct {
 410         guint8 _dummy; /* Remove when dissection is written */
 411 } Segment4K_t;
 412
 413 /* System informations structures */
 414
 415         /* System Information type 1 - [1] 10.1.31 */
 416 typedef struct {
 417         guint8          Protocol_Version;
 418         guint8          Block_Type;
 419         guint8          Randomization_Period;
 420         guint8          Spare;
 421 } SI1_Block_Header_t;
 422
 423 typedef struct {
 424         SI1_Block_Header_t      Block_Header;
 425         Segment1A_t             Segment1A;
 426         guint8                  SegmentType;
 427         union {
 428                 Segment2Abis_t          Segment2Abis;
 429                 Segment2Bbis_t          Segment2Bbis;
 430                 Segment3A_t             Segment3A;
 431                 Segment3Bbis_t          Segment3Bbis;
 432                 Segment3C_t             Segment3C;
 433                 Segment3D_t             Segment3D;
 434                 Segment3Ebis_t          Segment3Ebis;
 435                 Segment3F_t             Segment3F;
 436                 Segment3Gbis_t          Segment3Gbis;
 437                 Segment3H_t             Segment3H;
 438                 Segment3I_t             Segment3I;
 439                 Segment3Jbis_t          Segment3Jbis;
 440                 Segment3Kbis_t          Segment3Kbis;
 441                 Segment4A_t             Segment4A;
 442                 Segment4B_t             Segment4B;
 443                 Segment4C_t             Segment4C;
 444                 Segment4D_t             Segment4D;
 445                 Segment4E_t             Segment4E;
 446                 Segment4F_t             Segment4F;
 447                 Segment4G_t             Segment4G;
 448                 Segment4H_t             Segment4H;
 449                 Segment4I_t             Segment4I;
 450                 Segment4J_t             Segment4J;
 451                 Segment4K_t             Segment4K;
 452         } u;
 453 } SystemInformation1_t;
 454
 455         /* System Information type 2 - [1] 10.1.32 */
 456 typedef struct {
 457         guint8          Protocol_Version;
 458         guint8          Block_Type;
 459         guint8          Spare;
 460 } SI2_Block_Header_t;
 461
 462 typedef struct {
 463         SI2_Block_Header_t      Block_Header;
 464         guint8                  SegmentType;
 465         union {
 466                 Segment2A_t             Segment2A;
 467                 Segment2B_t             Segment2B;
 468                 Segment3B_t             Segment3B;
 469                 Segment3E_t             Segment3E;
 470                 Segment3G_t             Segment3G;
 471                 Segment3J_t             Segment3J;
 472         } u;
 473 } SystemInformation2_t;
 474
 475
 476 /* ------------------------------------------------------------------------ */
 477 /* CSN1 parsing definitions                                                 */
 478 /* ------------------------------------------------------------------------ */
 479
 480 /* Segments */
 481
 482         /* Segment 1A - [3] 11.5.2.66 */
 483 static const
 484 CSN_DESCR_BEGIN(Seg1A_SyncInfo_t)
 485   M_UINT       (Seg1A_SyncInfo_t, SB_FRAME_TS_OFFSET, 5, &hf_seg1a_syncinfo_sb_frame_ts_offset),
 486   M_UINT       (Seg1A_SyncInfo_t, SB_SYMBOL_OFFSET, 6, &hf_seg1a_syncinfo_sb_symbol_offset),
 487   M_UINT       (Seg1A_SyncInfo_t, SA_FREQ_OFFSET, 8, &hf_seg1a_syncinfo_sa_freq_offset),
 488 CSN_DESCR_END  (Seg1A_SyncInfo_t)
 489
 490 static const
 491 CSN_DESCR_BEGIN(Seg1A_AccessClasses_t)
 492  M_UINT        (Seg1A_AccessClasses_t, AC15, 1, &hf_seg1a_rachctrl_acc[15]),
 493  M_UINT        (Seg1A_AccessClasses_t, AC14, 1, &hf_seg1a_rachctrl_acc[14]),
 494  M_UINT        (Seg1A_AccessClasses_t, AC13, 1, &hf_seg1a_rachctrl_acc[13]),
 495  M_UINT        (Seg1A_AccessClasses_t, AC12, 1, &hf_seg1a_rachctrl_acc[12]),
 496  M_UINT        (Seg1A_AccessClasses_t, AC11, 1, &hf_seg1a_rachctrl_acc[11]),
 497  M_UINT        (Seg1A_AccessClasses_t, EC10, 1, &hf_seg1a_rachctrl_acc[10]),
 498  M_UINT        (Seg1A_AccessClasses_t, AC9,  1, &hf_seg1a_rachctrl_acc[9]),
 499  M_UINT        (Seg1A_AccessClasses_t, AC8,  1, &hf_seg1a_rachctrl_acc[8]),
 500  M_UINT        (Seg1A_AccessClasses_t, AC7,  1, &hf_seg1a_rachctrl_acc[7]),
 501  M_UINT        (Seg1A_AccessClasses_t, AC6,  1, &hf_seg1a_rachctrl_acc[6]),
 502  M_UINT        (Seg1A_AccessClasses_t, AC5,  1, &hf_seg1a_rachctrl_acc[5]),
 503  M_UINT        (Seg1A_AccessClasses_t, AC4,  1, &hf_seg1a_rachctrl_acc[4]),
 504  M_UINT        (Seg1A_AccessClasses_t, AC3,  1, &hf_seg1a_rachctrl_acc[3]),
 505  M_UINT        (Seg1A_AccessClasses_t, AC2,  1, &hf_seg1a_rachctrl_acc[2]),
 506  M_UINT        (Seg1A_AccessClasses_t, AC1,  1, &hf_seg1a_rachctrl_acc[1]),
 507  M_UINT        (Seg1A_AccessClasses_t, AC0,  1, &hf_seg1a_rachctrl_acc[0]),
 508 CSN_DESCR_END  (Seg1A_AccessClasses_t)
 509
 510 static const
 511 CSN_DESCR_BEGIN(Seg1A_RACHCtrlParams_t)
 512  M_UINT        (Seg1A_RACHCtrlParams_t, Max_Retrans, 2, &hf_seg1a_rachctrl_max_retrans),
 513  M_TYPE_LABEL  (Seg1A_RACHCtrlParams_t, AccessClasses, Seg1A_AccessClasses_t, "Access Classes"),
 514  M_UINT        (Seg1A_RACHCtrlParams_t, CELL_BAR_ACCESS, 1, &hf_seg1a_rachctrl_cell_bar_access),
 515 CSN_DESCR_END  (Seg1A_RACHCtrlParams_t)
 516
 517 static const
 518 CSN_DESCR_BEGIN(Seg1A_MiscInfo_t)
 519   M_UINT       (Seg1A_MiscInfo_t, SB_RESELECTION_HYSTERESIS, 4, &hf_seg1a_miscinfo_sb_reselection_hysteresis),
 520   M_UINT       (Seg1A_MiscInfo_t, Spare, 1, &hf_seg1a_miscinfo_spare),
 521   M_UINT       (Seg1A_MiscInfo_t, PriorityAccessInd, 1, &hf_seg1a_miscinfo_priority_access_ind),
 522 CSN_DESCR_END  (Seg1A_MiscInfo_t)
 523
 524 static const
 525 CSN_DESCR_BEGIN(Segment1A_t)
 526   M_UINT       (Segment1A_t, Class_2_version, 3, &hf_seg1a_class_2_version),
 527   M_UINT       (Segment1A_t, Class_3_version, 4, &hf_seg1a_class_3_version),
 528   M_TYPE_LABEL (Segment1A_t, SyncInfo, Seg1A_SyncInfo_t, "Synchronization Info Class 1"),
 529   M_TYPE_LABEL (Segment1A_t, RACHCtrlParams, Seg1A_RACHCtrlParams_t, "RACH Control Parameters"),
 530   M_TYPE_LABEL (Segment1A_t, MiscInfo, Seg1A_MiscInfo_t, "Misc Info Class 1"),
 531   M_UINT       (Segment1A_t, GBCH_Present, 1, &hf_seg1a_gbch_present),
 532   M_UINT       (Segment1A_t, Test_GS, 1, &hf_seg1a_test_gs),
 533   M_UINT       (Segment1A_t, Test_GS2, 1, &hf_seg1a_test_gs2),
 534   M_UINT       (Segment1A_t, Spare1, 3, &hf_seg1a_spare1),
 535   M_UINT       (Segment1A_t, CELL_BAR_ACCESS_EXTENSION2, 1, &hf_seg1a_cell_bar_access_extension2),
 536   M_UINT       (Segment1A_t, Spare2, 5, &hf_seg1a_spare2),
 537   M_UINT       (Segment1A_t, CELL_BAR_ACCESS_EXTENSION, 1, &hf_seg1a_cell_bar_access_extension),
 538 CSN_DESCR_END  (Segment1A_t)
 539
 540         /* Segment 2A & 2Abis - [1] 11.5.2.67 / 11.5.2.68 */
 541 static const
 542 CSN_DESCR_BEGIN(Seg2A_SyncInfo_t)
 543   M_UINT       (Seg2A_SyncInfo_t, SA_SIRFN_DELAY, 4, &hf_seg2a_syncinfo_sa_sirfn_delay),
 544   M_UINT       (Seg2A_SyncInfo_t, SA_BCCH_STN, 5, &hf_seg2a_syncinfo_sa_bcch_stn),
 545   M_UINT       (Seg2A_SyncInfo_t, SuperframeNum, 13, &hf_seg2a_syncinfo_superframe_num),
 546   M_UINT       (Seg2A_SyncInfo_t, MultiframeNum, 2, &hf_seg2a_syncinfo_multiframe_num),
 547   M_UINT       (Seg2A_SyncInfo_t, MFFN_HighBit, 1, &hf_seg2a_syncinfo_mffn_high_bit),
 548 CSN_DESCR_END  (Seg2A_SyncInfo_t)
 549
 550 static const
 551 CSN_DESCR_BEGIN(Seg2A_SelectionCriterion_t)
 552   M_UINT       (Seg2A_SelectionCriterion_t, RXLEV_SELECT_MIN, 5, &hf_seg2a_selcrit_rxlev_select_min),
 553 CSN_DESCR_END  (Seg2A_SelectionCriterion_t)
 554
 555 static const
 556 CSN_DESCR_BEGIN(Seg2A_MiscInfo_t)
 557   M_UINT       (Seg2A_MiscInfo_t, SB_SELECTION_POWER, 4, &hf_seg2a_miscinfo_sb_selection_power),
 558 CSN_DESCR_END  (Seg2A_MiscInfo_t)
 559
 560 static const
 561 CSN_DESCR_BEGIN(Seg2A_LAInfo_t)
 562   M_UINT       (Seg2A_LAInfo_t, SA_PCH_CONFIG, 2, &hf_seg2a_lainfo_sa_pch_config),
 563   M_UINT       (Seg2A_LAInfo_t, SA_BACH_CONFIG, 8, &hf_seg2a_lainfo_sa_bach_config),
 564   M_UINT       (Seg2A_LAInfo_t, RACH_TS_OFFSET, 5, &hf_seg2a_lainfo_rach_ts_offset),
 565   M_UINT       (Seg2A_LAInfo_t, N_Page_Occurrences, 2, &hf_seg2a_lainfo_n_page_occurrences),
 566   M_UINT       (Seg2A_LAInfo_t, IMSI_attach_detach_ind, 1, &hf_seg2a_lainfo_imsi_attach_detach_ind),
 567   M_UINT       (Seg2A_LAInfo_t, ECSC_ind, 1, &hf_seg2a_lainfo_ecsc_indication),
 568   M_UINT       (Seg2A_LAInfo_t, SI_update_ind, 1, &hf_seg2a_lainfo_si_update_ind),
 569 CSN_DESCR_END  (Seg2A_LAInfo_t)
 570
 571 static const
 572 CSN_DESCR_BEGIN(Segment2A_t)
 573   M_FIXED_LABEL(Segment2A_t, 2, 0x2, "= Class type: 2"),
 574   M_FIXED_LABEL(Segment2A_t, 4, 0x0, "= Segment type: A"),
 575   M_UINT       (Segment2A_t, Class_4_version, 3, &hf_seg2a_class_4_version),
 576   M_TYPE_LABEL (Segment2A_t, SyncInfo, Seg2A_SyncInfo_t, "Synchronization Info Class 2"),
 577   M_TYPE_LABEL (Segment2A_t, SelectionCriterion, Seg2A_SelectionCriterion_t, "Selection Criterion"),
 578   M_TYPE_LABEL (Segment2A_t, MiscInfo, Seg2A_MiscInfo_t, "Misc Info Class 2"),
 579   M_TYPE_LABEL (Segment2A_t, LAInfo, Seg2A_LAInfo_t, "LA Info Class 2"),
 580 CSN_DESCR_END  (Segment2A_t)
 581
 582 static const
 583 CSN_DESCR_BEGIN(Segment2Abis_t)
 584   M_FIXED_LABEL(Segment2Abis_t, 2, 0x2, "= Class type: 2"),
 585   M_FIXED_LABEL(Segment2Abis_t, 4, 0x0, "= Segment type: Abis"),
 586   M_UINT       (Segment2Abis_t, Class_4_version, 3, &hf_seg2a_class_4_version),
 587   M_TYPE_LABEL (Segment2Abis_t, SyncInfo, Seg2A_SyncInfo_t, "Synchronization Info Class 2"),
 588   M_TYPE_LABEL (Segment2Abis_t, SelectionCriterion, Seg2A_SelectionCriterion_t, "Selection Criterion"),
 589   M_TYPE_LABEL (Segment2Abis_t, MiscInfo, Seg2A_MiscInfo_t, "Misc Info Class 2"),
 590   M_TYPE_LABEL (Segment2Abis_t, LAInfo, Seg2A_LAInfo_t, "LA Info Class 2"),
 591 CSN_DESCR_END  (Segment2Abis_t)
 592
 593 static const
 594 CSN_DESCR_BEGIN(Segment2B_t)
 595   M_FIXED_LABEL(Segment2B_t, 2, 0x2, "= Class type: 2"),
 596   M_FIXED_LABEL(Segment2B_t, 4, 0x1, "= Segment type: B"),
 597 CSN_DESCR_END  (Segment2B_t)
 598
 599 static const
 600 CSN_DESCR_BEGIN(Segment2Bbis_t)
 601   M_FIXED_LABEL(Segment2Bbis_t, 2, 0x2, "= Class type: 2"),
 602   M_FIXED_LABEL(Segment2Bbis_t, 4, 0x1, "= Segment type: B bis"),
 603 CSN_DESCR_END  (Segment2Bbis_t)
 604
 605         /* Segment 3A - [1] 11.5.2.71 */
 606 static gint16
 607 Seg3A_LAI_Dissector(proto_tree *tree _U_, csnStream_t* ar, tvbuff_t *tvb, void* data, int ett_csn1)
 608 {
 609         Seg3A_LAI_t *LAI = (Seg3A_LAI_t *)data;
 610         proto_item *lac_item;
 611         proto_tree *lac_tree;
 612         guint8 c[5];
 613         int i;
 614
 615         if (ar->remaining_bits_len < 5*8)
 616                 return -1;
 617
 618         for (i=0; i<5; i++)
 619                 c[i] = tvb_get_bits8(tvb, ar->bit_offset + (i<<3), 8);
 620
 621         LAI->MCC = (c[0] & 0xf) * 100 + ((c[0] & 0xf0) >> 4) * 10 + (c[1] & 0xf);
 622         LAI->MNC = (c[2] & 0xf) *  10 + ((c[2] & 0xf0) >> 4);
 623
 624         LAI->LAC = (c[3] << 8) | c[4];
 625         LAI->MSC_ID = (LAI->LAC >> 10) & 0x3f;
 626         LAI->Spot_Beam_ID = LAI->LAC & 0x03ff;
 627
 628         proto_tree_add_uint_bits_format_value(tree, hf_seg3a_lai_mcc, tvb, ar->bit_offset, 16, (guint32)LAI->MCC, "%d", LAI->MCC);
 629         proto_tree_add_uint_bits_format_value(tree, hf_seg3a_lai_mnc, tvb, ar->bit_offset+16, 8, (guint32)LAI->MNC, "%d", LAI->MNC);
 630
 631         lac_item = proto_tree_add_uint_bits_format_value(tree, hf_seg3a_lai_lac, tvb, ar->bit_offset+24, 16, (guint32)LAI->LAC, "0x%04x", LAI->LAC);
 632         lac_tree = proto_item_add_subtree(lac_item, ett_csn1);
 633
 634         proto_tree_add_uint_bits_format_value(lac_tree, hf_seg3a_lai_msc_id, tvb, ar->bit_offset+24, 6, (guint32)LAI->MSC_ID, "%d", LAI->MSC_ID);
 635         proto_tree_add_uint_bits_format_value(lac_tree, hf_seg3a_lai_spot_beam_id, tvb, ar->bit_offset+30, 10, (guint32)LAI->Spot_Beam_ID, "%d", LAI->Spot_Beam_ID);
 636
 637         ar->remaining_bits_len -= 5*8;
 638         ar->bit_offset += 5*8;
 639
 640         return 0;
 641 }
 642
 643 static const
 644 CSN_DESCR_BEGIN(Seg3A_System_t)
 645   M_UINT       (Seg3A_System_t, Satellite_ID, 2, &hf_seg3a_system_sat_id),
 646   M_UINT       (Seg3A_System_t, System_ID, 4, &hf_seg3a_system_sys_id),
 647 CSN_DESCR_END  (Seg3A_System_t)
 648
 649 static const
 650 CSN_DESCR_BEGIN(Seg3A_SatellitePosition_t)
 651   M_UINT       (Seg3A_SatellitePosition_t, Latitude, 8, &hf_seg3a_satpos_latitude),
 652   M_UINT       (Seg3A_SatellitePosition_t, Longitude, 12, &hf_seg3a_satpos_longitude),
 653   M_UINT       (Seg3A_SatellitePosition_t, Radius, 16, &hf_seg3a_satpos_radius),
 654 CSN_DESCR_END  (Seg3A_SatellitePosition_t)
 655
 656 static const
 657 CSN_DESCR_BEGIN(Seg3A_BeamPosition_t)
 658   M_UINT       (Seg3A_BeamPosition_t, Latitude, 11, &hf_seg3a_beam_latitude),
 659   M_UINT       (Seg3A_BeamPosition_t, Longitude, 12, &hf_seg3a_beam_longitude),
 660 CSN_DESCR_END  (Seg3A_BeamPosition_t)
 661
 662 static const
 663 CSN_DESCR_BEGIN(Seg3A_MiscInfo_t)
 664   M_UINT       (Seg3A_MiscInfo_t, SB_RESELECTION_TIMER, 6, &hf_seg3a_miscinfo_sb_reselection_timer),
 665 CSN_DESCR_END  (Seg3A_MiscInfo_t)
 666
 667 static const
 668 CSN_DESCR_BEGIN(Segment3A_t)
 669   M_FIXED_LABEL(Segment3A_t, 1, 0x0, "= Class type: 3"),
 670   M_FIXED_LABEL(Segment3A_t, 4, 0x0, "= Segment type: A"),
 671   M_SERIALIZE  (Segment3A_t, LAI, 0, Seg3A_LAI_Dissector),
 672   M_TYPE_LABEL (Segment3A_t, System, Seg3A_System_t, "System"),
 673   M_TYPE_LABEL (Segment3A_t, SatellitePosition, Seg3A_SatellitePosition_t, "Satellite Position"),
 674   M_TYPE_LABEL (Segment3A_t, BeamPosition, Seg3A_BeamPosition_t, "Beam Center Position"),
 675   M_TYPE_LABEL (Segment3A_t, MiscInfo, Seg3A_MiscInfo_t, "Misc Info Class 3"),
 676   M_UINT       (Segment3A_t, Spare, 4, &hf_seg3a_spare),
 677 CSN_DESCR_END  (Segment3A_t)
 678
 679 static const
 680 CSN_DESCR_BEGIN(Segment3B_t)
 681   M_FIXED_LABEL(Segment3B_t, 1, 0x0, "= Class type: 3"),
 682   M_FIXED_LABEL(Segment3B_t, 4, 0x1, "= Segment type: B"),
 683 CSN_DESCR_END  (Segment3B_t)
 684
 685 static const
 686 CSN_DESCR_BEGIN(Segment3Bbis_t)
 687   M_FIXED_LABEL(Segment3Bbis_t, 1, 0x0, "= Class type: 3"),
 688   M_FIXED_LABEL(Segment3Bbis_t, 4, 0x1, "= Segment type: B bis"),
 689 CSN_DESCR_END  (Segment3Bbis_t)
 690
 691 static const
 692 CSN_DESCR_BEGIN(Segment3C_t)
 693   M_FIXED_LABEL(Segment3C_t, 1, 0x0, "= Class type: 3"),
 694   M_FIXED_LABEL(Segment3C_t, 4, 0x2, "= Segment type: C"),
 695 CSN_DESCR_END  (Segment3C_t)
 696
 697 static const
 698 CSN_DESCR_BEGIN(Segment3D_t)
 699   M_FIXED_LABEL(Segment3D_t, 1, 0x0, "= Class type: 3"),
 700   M_FIXED_LABEL(Segment3D_t, 4, 0x3, "= Segment type: D"),
 701 CSN_DESCR_END  (Segment3D_t)
 702
 703 static const
 704 CSN_DESCR_BEGIN(Segment3E_t)
 705   M_FIXED_LABEL(Segment3E_t, 1, 0x0, "= Class type: 3"),
 706   M_FIXED_LABEL(Segment3E_t, 4, 0x4, "= Segment type: E"),
 707 CSN_DESCR_END  (Segment3E_t)
 708
 709 static const
 710 CSN_DESCR_BEGIN(Segment3Ebis_t)
 711   M_FIXED_LABEL(Segment3Ebis_t, 1, 0x0, "= Class type: 3"),
 712   M_FIXED_LABEL(Segment3Ebis_t, 4, 0x4, "= Segment type: E bis"),
 713 CSN_DESCR_END  (Segment3Ebis_t)
 714
 715 static const
 716 CSN_DESCR_BEGIN(Segment3F_t)
 717   M_FIXED_LABEL(Segment3F_t, 1, 0x0, "= Class type: 3"),
 718   M_FIXED_LABEL(Segment3F_t, 4, 0x5, "= Segment type: F"),
 719 CSN_DESCR_END  (Segment3F_t)
 720
 721 static const
 722 CSN_DESCR_BEGIN(Segment3G_t)
 723   M_FIXED_LABEL(Segment3G_t, 1, 0x0, "= Class type: 3"),
 724   M_FIXED_LABEL(Segment3G_t, 4, 0x6, "= Segment type: G"),
 725 CSN_DESCR_END  (Segment3G_t)
 726
 727 static const
 728 CSN_DESCR_BEGIN(Segment3Gbis_t)
 729   M_FIXED_LABEL(Segment3Gbis_t, 1, 0x0, "= Class type: 3"),
 730   M_FIXED_LABEL(Segment3Gbis_t, 4, 0x6, "= Segment type: G bis"),
 731 CSN_DESCR_END  (Segment3Gbis_t)
 732
 733 static const
 734 CSN_DESCR_BEGIN(Segment3H_t)
 735   M_FIXED_LABEL(Segment3H_t, 1, 0x0, "= Class type: 3"),
 736   M_FIXED_LABEL(Segment3H_t, 4, 0x7, "= Segment type: H"),
 737 CSN_DESCR_END  (Segment3H_t)
 738
 739 static const
 740 CSN_DESCR_BEGIN(Segment3I_t)
 741   M_FIXED_LABEL(Segment3I_t, 1, 0x0, "= Class type: 3"),
 742   M_FIXED_LABEL(Segment3I_t, 4, 0x9, "= Segment type: I"),
 743 CSN_DESCR_END  (Segment3I_t)
 744
 745 static const
 746 CSN_DESCR_BEGIN(Segment3J_t)
 747   M_FIXED_LABEL(Segment3J_t, 1, 0x0, "= Class type: 3"),
 748   M_FIXED_LABEL(Segment3J_t, 4, 0xa, "= Segment type: J"),
 749 CSN_DESCR_END  (Segment3J_t)
 750
 751 static const
 752 CSN_DESCR_BEGIN(Segment3Jbis_t)
 753   M_FIXED_LABEL(Segment3Jbis_t, 1, 0x0, "= Class type: 3"),
 754   M_FIXED_LABEL(Segment3Jbis_t, 4, 0xa, "= Segment type: J bis"),
 755 CSN_DESCR_END  (Segment3Jbis_t)
 756
 757 static const
 758 CSN_DESCR_BEGIN(Segment3Kbis_t)
 759   M_FIXED_LABEL(Segment3Kbis_t, 1, 0x0, "= Class type: 3"),
 760   M_FIXED_LABEL(Segment3Kbis_t, 4, 0xb, "= Segment type: K bis"),
 761 CSN_DESCR_END  (Segment3Kbis_t)
 762
 763 #if 0
 764 static const
 765 CSN_DESCR_BEGIN(Segment3L_t)
 766   M_FIXED_LABEL(Segment3L_t, 1, 0x0, "= Class type: 3"),
 767   M_FIXED_LABEL(Segment3L_t, 4, 0xc, "= Segment type: L"),
 768 CSN_DESCR_END  (Segment3L_t)
 769 #endif
 770
 771 #if 0
 772 static const
 773 CSN_DESCR_BEGIN(Segment3M_t)
 774   M_FIXED_LABEL(Segment3M_t, 1, 0x0, "= Class type: 3"),
 775   M_FIXED_LABEL(Segment3M_t, 4, 0xd, "= Segment type: M"),
 776 CSN_DESCR_END  (Segment3M_t)
 777 #endif
 778
 779 static const
 780 CSN_DESCR_BEGIN(Segment4A_t)
 781   M_FIXED_LABEL(Segment4A_t, 3, 0x6, "= Class type: 4"),
 782   M_FIXED_LABEL(Segment4A_t, 4, 0x0, "= Segment type: A"),
 783 CSN_DESCR_END  (Segment4A_t)
 784
 785 static const
 786 CSN_DESCR_BEGIN(Segment4B_t)
 787   M_FIXED_LABEL(Segment4B_t, 3, 0x6, "= Class type: 4"),
 788   M_FIXED_LABEL(Segment4B_t, 4, 0x1, "= Segment type: B"),
 789 CSN_DESCR_END  (Segment4B_t)
 790
 791 static const
 792 CSN_DESCR_BEGIN(Segment4C_t)
 793   M_FIXED_LABEL(Segment4C_t, 3, 0x6, "= Class type: 4"),
 794   M_FIXED_LABEL(Segment4C_t, 4, 0x2, "= Segment type: C"),
 795 CSN_DESCR_END  (Segment4C_t)
 796
 797 static const
 798 CSN_DESCR_BEGIN(Segment4D_t)
 799   M_FIXED_LABEL(Segment4D_t, 3, 0x6, "= Class type: 4"),
 800   M_FIXED_LABEL(Segment4D_t, 4, 0x3, "= Segment type: D"),
 801 CSN_DESCR_END  (Segment4D_t)
 802
 803 static const
 804 CSN_DESCR_BEGIN(Segment4E_t)
 805   M_FIXED_LABEL(Segment4E_t, 3, 0x6, "= Class type: 4"),
 806   M_FIXED_LABEL(Segment4E_t, 4, 0x4, "= Segment type: E"),
 807 CSN_DESCR_END  (Segment4E_t)
 808
 809 static const
 810 CSN_DESCR_BEGIN(Segment4F_t)
 811   M_FIXED_LABEL(Segment4F_t, 3, 0x6, "= Class type: 4"),
 812   M_FIXED_LABEL(Segment4F_t, 4, 0x5, "= Segment type: F"),
 813 CSN_DESCR_END  (Segment4F_t)
 814
 815 static const
 816 CSN_DESCR_BEGIN(Segment4G_t)
 817   M_FIXED_LABEL(Segment4G_t, 3, 0x6, "= Class type: 4"),
 818   M_FIXED_LABEL(Segment4G_t, 4, 0x6, "= Segment type: G"),
 819 CSN_DESCR_END  (Segment4G_t)
 820
 821 static const
 822 CSN_DESCR_BEGIN(Segment4H_t)
 823   M_FIXED_LABEL(Segment4H_t, 3, 0x6, "= Class type: 4"),
 824   M_FIXED_LABEL(Segment4H_t, 4, 0x7, "= Segment type: H"),
 825 CSN_DESCR_END  (Segment4H_t)
 826
 827 static const
 828 CSN_DESCR_BEGIN(Segment4I_t)
 829   M_FIXED_LABEL(Segment4I_t, 3, 0x6, "= Class type: 4"),
 830   M_FIXED_LABEL(Segment4I_t, 4, 0x8, "= Segment type: I"),
 831 CSN_DESCR_END  (Segment4I_t)
 832
 833 static const
 834 CSN_DESCR_BEGIN(Segment4J_t)
 835   M_FIXED_LABEL(Segment4J_t, 3, 0x6, "= Class type: 4"),
 836   M_FIXED_LABEL(Segment4J_t, 4, 0x9, "= Segment type: J"),
 837 CSN_DESCR_END  (Segment4J_t)
 838
 839 static const
 840 CSN_DESCR_BEGIN(Segment4K_t)
 841   M_FIXED_LABEL(Segment4K_t, 3, 0x6, "= Class type: 4"),
 842   M_FIXED_LABEL(Segment4K_t, 4, 0xa, "= Segment type: K"),
 843 CSN_DESCR_END  (Segment4K_t)
 844
 845
 846 /* System information */
 847
 848         /* System Information type 1 - [1] 10.1.31 */
 849
 850 static const
 851 CSN_DESCR_BEGIN(SI1_Block_Header_t)
 852   M_UINT       (SI1_Block_Header_t, Protocol_Version, 4, &hf_si_protocol_version),
 853   M_UINT       (SI1_Block_Header_t, Block_Type, 1, &hf_si_block_type),
 854   M_UINT       (SI1_Block_Header_t, Randomization_Period, 2, &hf_si1_randomization_period),
 855   M_UINT       (SI1_Block_Header_t, Spare, 1, &hf_si_spare),
 856 CSN_DESCR_END  (SI1_Block_Header_t)
 857
 858 static const
 859 CSN_ChoiceElement_t SI1_SegmentChoice[] =
 860 {
 861   {6, 0x20, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment2Abis, Segment2Abis_t, "Segment 2A bis")},
 862   {6, 0x21, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment2Bbis, Segment2Bbis_t, "Segment 2B bis")},
 863   {5, 0x00, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3A,    Segment3A_t,    "Segment 3A")},
 864   {5, 0x01, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Bbis, Segment3Bbis_t, "Segment 3B bis")},
 865   {5, 0x02, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3C,    Segment3C_t,    "Segment 3C")},
 866   {5, 0x03, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3D,    Segment3D_t,    "Segment 3D")},
 867   {5, 0x04, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Ebis, Segment3Ebis_t, "Segment 3E bis")},
 868   {5, 0x05, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3F,    Segment3F_t,    "Segment 3F")},
 869   {5, 0x06, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Gbis, Segment3Gbis_t, "Segment 3G bis")},
 870   {5, 0x07, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3H,    Segment3H_t,    "Segment 3H")},
 871   {5, 0x09, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3I,    Segment3I_t,    "Segment 3I")},
 872   {5, 0x0a, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Jbis, Segment3Jbis_t, "Segment 3J bis")},
 873   {5, 0x0b, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment3Kbis, Segment3Kbis_t, "Segment 3K bis")},
 874   {7, 0x60, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4A,    Segment4A_t,    "Segment 4A")},
 875   {7, 0x61, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4B,    Segment4B_t,    "Segment 4B")},
 876   {7, 0x62, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4C,    Segment4C_t,    "Segment 4C")},
 877   {7, 0x63, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4D,    Segment4D_t,    "Segment 4D")},
 878   {7, 0x64, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4E,    Segment4E_t,    "Segment 4E")},
 879   {7, 0x65, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4F,    Segment4F_t,    "Segment 4F")},
 880   {7, 0x66, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4G,    Segment4G_t,    "Segment 4G")},
 881   {7, 0x67, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4H,    Segment4H_t,    "Segment 4H")},
 882   {7, 0x68, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4I,    Segment4I_t,    "Segment 4I")},
 883   {7, 0x69, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4J,    Segment4J_t,    "Segment 4J")},
 884   {7, 0x6a, 1, M_TYPE_LABEL(SystemInformation1_t, u.Segment4K,    Segment4K_t,    "Segment 4K")},
 885   {0, 0x00, 1, CSN_ERROR(SystemInformation1_t, "Unknown segment !", -1)},
 886 };
 887
 888 static const
 889 CSN_DESCR_BEGIN(SystemInformation1_t)
 890   M_TYPE_LABEL (SystemInformation1_t, Block_Header, SI1_Block_Header_t, "Block Header"),
 891   M_TYPE_LABEL (SystemInformation1_t, Segment1A, Segment1A_t, "Segment 1A"),
 892   M_CHOICE_IL  (SystemInformation1_t, SegmentType, SI1_SegmentChoice, ElementsOf(SI1_SegmentChoice)),
 893 CSN_DESCR_END  (SystemInformation1_t)
 894
 895         /* System Information type 2 - [1] 10.1.32 */
 896
 897 CSN_DESCR_BEGIN(SI2_Block_Header_t)
 898   M_UINT       (SI2_Block_Header_t, Protocol_Version, 4, &hf_si_protocol_version),
 899   M_UINT       (SI2_Block_Header_t, Block_Type, 1, &hf_si_block_type),
 900   M_UINT       (SI2_Block_Header_t, Spare, 3, &hf_si_spare),
 901 CSN_DESCR_END  (SI2_Block_Header_t)
 902
 903 static const
 904 CSN_ChoiceElement_t SI2_SegmentChoice[] =
 905 {
 906   {6, 0x20, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment2A, Segment2A_t, "Segment 2A")},
 907   {6, 0x21, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment2B, Segment2B_t, "Segment 2B")},
 908   {5, 0x01, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment3B, Segment3B_t, "Segment 3B")},
 909   {5, 0x04, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment3E, Segment3E_t, "Segment 3E")},
 910   {5, 0x06, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment3G, Segment3G_t, "Segment 3G")},
 911   {5, 0x0a, 1, M_TYPE_LABEL(SystemInformation2_t, u.Segment3J, Segment3J_t, "Segment 3J")},
 912   {0, 0x00, 1, CSN_ERROR(SystemInformation2_t, "Unknown segment !", -1)},
 913 };
 914
 915 static const
 916 CSN_DESCR_BEGIN(SystemInformation2_t)
 917   M_TYPE_LABEL (SystemInformation2_t, Block_Header, SI2_Block_Header_t, "Block Header"),
 918   M_CHOICE_IL  (SystemInformation2_t, SegmentType, SI2_SegmentChoice, ElementsOf(SI2_SegmentChoice)),
 919 CSN_DESCR_END  (SystemInformation2_t)
 920
 921
 922 /* ------------------------------------------------------------------------ */
 923 /* Fields values                                                            */
 924 /* ------------------------------------------------------------------------ */
 925
 926 /* Common stuff */
 927 static void
 928 segx_half_db_value_fmt(gchar *s, guint32 v)
 929 {
 930         g_snprintf(s, ITEM_LABEL_LENGTH, "%2.1f dB (%u)", v * 0.5f, v);
 931 }
 932
 933 /* Segment 1A - [3] 11.5.2.66 */
 934 static void
 935 seg1a_syncinfo_sa_freq_offset_fmt(gchar *s, guint32 v)
 936 {
 937         gint32 sv = (gint32)v;
 938         g_snprintf(s, ITEM_LABEL_LENGTH, "%d Hz (%d)", sv * 5, sv);
 939 }
 940
 941 static const value_string seg1a_rachctrl_acc_vals[] = {
 942         {  0, "not barred (allowed)"},
 943         {  1, "barred (not allowed)"},
 944         {  0, NULL }
 945 };
 946
 947 static const value_string seg1a_rachctrl_cell_bar_access_vals[] = {
 948         {  0, "The cell is not barred"},
 949         {  1, "The cell is barred"},
 950         {  0, NULL }
 951 };
 952
 953 /* Segment 2A & 2Abis - [1] 11.5.2.67 & 11.5.2.68 */
 954 static const value_string seg2a_lainfo_imsi_attach_detach_ind_vals[] = {
 955         {  0, "MESs shall NOT apply IMSI attach and detach procedure for this LA"},
 956         {  1, "MESs shall apply IMSI attach and detach procedure for this LA"},
 957         {  0, NULL }
 958 };
 959
 960 static const value_string seg2a_lainfo_ecsc_indication_vals[] = {
 961         {  0, "Early sending is explicitly prohibited"},
 962         {  1, "Early sending is explicitly accepted"},
 963         {  0, NULL }
 964 };
 965
 966 /* Segment 3A - [1] 11.5.2.71 */
 967 static void
 968 seg3a_latitude_fmt(gchar *s, guint32 v)
 969 {
 970         gint32 sv = (gint32)v;
 971         char c;
 972
 973         if (sv < 0) {
 974                 c = 'S';
 975                 sv = -sv;
 976         } else
 977                 c = 'N';
 978
 979         g_snprintf(s, ITEM_LABEL_LENGTH, "%.1f %c (%d)", sv / 10.0f, c, sv);
 980 }
 981
 982 static void
 983 seg3a_longitude_fmt(gchar *s, guint32 v)
 984 {
 985         gint32 sv;
 986         char c;
 987
 988         if (v < 1800) {
 989                 c = 'W';
 990                 sv = v;
 991         } else {
 992                 c = 'E';
 993                 sv = 3600 - v;
 994         }
 995
 996         g_snprintf(s, ITEM_LABEL_LENGTH, "%.1f %c (%u)", sv / 10.0f, c, v);
 997 }
 998
 999 static void
1000 seg3a_satpos_radius_fmt(gchar *s, guint32 v)
1001 {
1002         gint32 sv = (gint32)v;
1003         gint32 a = (42162 * 1000) + (sv * 5);
1004         g_snprintf(s, ITEM_LABEL_LENGTH, "%.3lf km (%u)", a / 1000.0, sv);
1005 }
1006
1007 static void
1008 seg3a_miscinfo_sb_reselection_timer_fmt(gchar *s, guint32 v)
1009 {
1010         g_snprintf(s, ITEM_LABEL_LENGTH, "%d minutes (%u)", v*4, v);
1011 }
1012
1013 /* System Information 1 - [1] 10.3.31 */
1014 static const value_string si1_randomization_period_vals[] = {
1015         { 0, "7 frames after this SI block" },
1016         { 1, "15 frames after this SI block" },
1017         { 2, "23 frames after this SI block" },
1018         { 3, "31 frames after this SI block" },
1019         { 0, NULL }
1020 };
1021
1022
1023 /* ------------------------------------------------------------------------ */
1024 /* Dissector code                                                           */
1025 /* ------------------------------------------------------------------------ */
1026
1027 static void
1028 dissect_gmr1_bcch(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
1029 {
1030         proto_item  *bcch_item = NULL;
1031         proto_tree  *bcch_tree = NULL;
1032         csnStream_t  ar;
1033         gboolean     is_si1;
1034
1035         col_append_str(pinfo->cinfo, COL_INFO, "(BCCH) ");
1036
1037         is_si1 = tvb_get_bits8(tvb, 0, 5) & 1;
1038
1039         bcch_item =  proto_tree_add_protocol_format(
1040                 tree, proto_gmr1_bcch, tvb, 0, -1,
1041                 "GMR-1 BCCH - System Information type %d", is_si1 ? 1 : 2
1042         );
1043         bcch_tree = proto_item_add_subtree(bcch_item, ett_gmr1_bcch);
1044
1045         csnStreamInit(&ar, 0, tvb_length(tvb)*8);
1046
1047         /* SI1 or SI2 */
1048         if (is_si1) {
1049                 SystemInformation1_t *data;
1050                 data = wmem_new(wmem_packet_scope(), SystemInformation1_t);
1051                 /* Initialize the type to the last element, which is an
1052                  * "Unknown", in case the dissector bails before getting this
1053                  * far. */
1054                 data->SegmentType = array_length(SI1_SegmentChoice) - 1;
1055                 csnStreamDissector(bcch_tree, &ar, CSNDESCR(SystemInformation1_t), tvb, data, ett_gmr1_bcch);
1056                 col_append_fstr(
1057                         pinfo->cinfo, COL_INFO,
1058                         "System Information 1: Segment 1A, %s",
1059                         SI1_SegmentChoice[data->SegmentType].descr.sz
1060                 );
1061         } else {
1062                 SystemInformation2_t *data;
1063                 data = wmem_new(wmem_packet_scope(), SystemInformation2_t);
1064                 /* Initialize the type to the last element, which is an
1065                  * "Unknown", in case the dissector bails before getting this
1066                  * far. */
1067                 data->SegmentType = array_length(SI2_SegmentChoice) - 1;
1068                 csnStreamDissector(bcch_tree, &ar, CSNDESCR(SystemInformation2_t), tvb, data, ett_gmr1_bcch);
1069                 col_append_fstr(
1070                         pinfo->cinfo, COL_INFO,
1071                         "System Information 2: %s",
1072                         SI2_SegmentChoice[data->SegmentType].descr.sz
1073                 );
1074         }
1075 }
1076
1077 void
1078 proto_register_gmr1_bcch(void)
1079 {
1080         static hf_register_info hf[] = {
1081                 /* Segment 1A - [3] 11.5.2.66 */
1082                 { &hf_seg1a_class_2_version,
1083                   { "Class 2 version", "gmr1.bcch.seg1a.class_2_version",
1084                     FT_UINT8, BASE_DEC, NULL, 0x00,
1085                     "Version number for current Class 2 information", HFILL }
1086                 },
1087                 { &hf_seg1a_class_3_version,
1088                   { "Class 3 version", "gmr1.bcch.seg1a.class_3_version",
1089                     FT_UINT8, BASE_DEC, NULL, 0x00,
1090                     "Version number for current Class 3 information", HFILL }
1091                 },
1092                 { &hf_seg1a_syncinfo_sb_frame_ts_offset,
1093                   { "SB_FRAME_TS_OFFSET", "gmr1.bcch.seg1a.syncinfo.sb_frame_ts_offset",
1094                     FT_UINT8, BASE_DEC, NULL, 0x00,
1095                     NULL, HFILL }
1096                 },
1097                 { &hf_seg1a_syncinfo_sb_symbol_offset,
1098                   { "SB_SYMBOL_OFFSET", "gmr1.bcch.seg1a.syncinfo.sb_symbol_offset",
1099                     FT_INT8, BASE_DEC, NULL, 0x00,
1100                     NULL, HFILL }
1101                 },
1102                 { &hf_seg1a_syncinfo_sa_freq_offset,
1103                   { "SA_FREQ_OFFSET", "gmr1.bcch.seg1a.syncinfo.sa_freq_offset",
1104                     FT_UINT8, BASE_CUSTOM, seg1a_syncinfo_sa_freq_offset_fmt, 0x00,
1105                     NULL, HFILL }
1106                 },
1107                 { &hf_seg1a_rachctrl_max_retrans,
1108                   { "Max Retrans", "gmr1.bcch.seg1a.rachctrl.max_retrans",
1109                     FT_UINT8, BASE_DEC, NULL, 0x00,
1110                     NULL, HFILL }
1111                 },
1112                 { &hf_seg1a_rachctrl_acc[15],
1113                   { "AC15", "gmr1.bcch.seg1a.rachctrl.ac15",
1114                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1115                     "Access Class 15 barred", HFILL }
1116                 },
1117                 { &hf_seg1a_rachctrl_acc[14],
1118                   { "AC14", "gmr1.bcch.seg1a.rachctrl.ac14",
1119                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1120                     "Access Class 14 barred", HFILL }
1121                 },
1122                 { &hf_seg1a_rachctrl_acc[13],
1123                   { "AC13", "gmr1.bcch.seg1a.rachctrl.ac13",
1124                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1125                     "Access Class 13 barred", HFILL }
1126                 },
1127                 { &hf_seg1a_rachctrl_acc[12],
1128                   { "AC12", "gmr1.bcch.seg1a.rachctrl.ac12",
1129                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1130                     "Access Class 12 barred", HFILL }
1131                 },
1132                 { &hf_seg1a_rachctrl_acc[11],
1133                   { "AC11", "gmr1.bcch.seg1a.rachctrl.ac11",
1134                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1135                     "Access Class 11 barred", HFILL }
1136                 },
1137                 { &hf_seg1a_rachctrl_acc[10],
1138                   { "EC10", "gmr1.bcch.seg1a.rachctrl.ac10",
1139                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1140                     "Emergency Class 10 barred", HFILL }
1141                 },
1142                 { &hf_seg1a_rachctrl_acc[9],
1143                   { "AC9", "gmr1.bcch.seg1a.rachctrl.ac9",
1144                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1145                     "Access Class 9 barred", HFILL }
1146                 },
1147                 { &hf_seg1a_rachctrl_acc[8],
1148                   { "AC8", "gmr1.bcch.seg1a.rachctrl.ac8",
1149                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1150                     "Access Class 8 barred", HFILL }
1151                 },
1152                 { &hf_seg1a_rachctrl_acc[7],
1153                   { "AC7", "gmr1.bcch.seg1a.rachctrl.ac7",
1154                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1155                     "Access Class 7 barred", HFILL }
1156                 },
1157                 { &hf_seg1a_rachctrl_acc[6],
1158                   { "AC6", "gmr1.bcch.seg1a.rachctrl.ac6",
1159                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1160                     "Access Class 6 barred", HFILL }
1161                 },
1162                 { &hf_seg1a_rachctrl_acc[5],
1163                   { "AC5", "gmr1.bcch.seg1a.rachctrl.ac5",
1164                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1165                     "Access Class 5 barred", HFILL }
1166                 },
1167                 { &hf_seg1a_rachctrl_acc[4],
1168                   { "AC4", "gmr1.bcch.seg1a.rachctrl.ac4",
1169                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1170                     "Access Class 4 barred", HFILL }
1171                 },
1172                 { &hf_seg1a_rachctrl_acc[3],
1173                   { "AC3", "gmr1.bcch.seg1a.rachctrl.ac3",
1174                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1175                     "Access Class 3 barred", HFILL }
1176                 },
1177                 { &hf_seg1a_rachctrl_acc[2],
1178                   { "AC2", "gmr1.bcch.seg1a.rachctrl.ac2",
1179                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1180                     "Access Class 2 barred", HFILL }
1181                 },
1182                 { &hf_seg1a_rachctrl_acc[1],
1183                   { "AC1", "gmr1.bcch.seg1a.rachctrl.ac1",
1184                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1185                     "Access Class 1 barred", HFILL }
1186                 },
1187                 { &hf_seg1a_rachctrl_acc[0],
1188                   { "AC0", "gmr1.bcch.seg1a.rachctrl.ac0",
1189                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_acc_vals), 0x00,
1190                     "Access Class 0 barred", HFILL }
1191                 },
1192                 { &hf_seg1a_rachctrl_cell_bar_access,
1193                   { "CELL_BAR_ACCESS", "gmr1.bcch.seg1a.rachctrl.cell_bar_access",
1194                     FT_UINT8, BASE_DEC, VALS(seg1a_rachctrl_cell_bar_access_vals), 0x00,
1195                     NULL, HFILL }
1196                 },
1197                 { &hf_seg1a_miscinfo_sb_reselection_hysteresis,
1198                   { "SB_RESELECTION_HYSTERESIS", "gmr1.bcch.seg1a.miscinfo.sb_reselection_hysteresis",
1199                     FT_UINT8, BASE_CUSTOM, segx_half_db_value_fmt, 0x00,
1200                     NULL, HFILL }
1201                 },
1202                 { &hf_seg1a_miscinfo_spare,
1203                   { "Spare", "gmr1.bcch.seg1a.miscinfo.spare",
1204                     FT_UINT8, BASE_DEC, NULL, 0x00,
1205                     NULL, HFILL }
1206                 },
1207                 { &hf_seg1a_miscinfo_priority_access_ind,
1208                   { "Priority Access Ind", "gmr1.bcch.seg1a.miscinfo.priority_access_ind",
1209                     FT_UINT8, BASE_DEC, NULL, 0x00,
1210                     "Reserved for future use", HFILL }
1211                 },
1212                 { &hf_seg1a_gbch_present,
1213                   { "GBCH Present", "gmr1.bcch.seg1a.gbch_present",
1214                     FT_UINT8, BASE_DEC, NULL, 0x00,
1215                     NULL, HFILL }
1216                 },
1217                 { &hf_seg1a_test_gs,
1218                   { "Test GS", "gmr1.bcch.seg1a.test_gs",
1219                     FT_UINT8, BASE_DEC, NULL, 0x00,
1220                     NULL, HFILL }
1221                 },
1222                 { &hf_seg1a_test_gs2,
1223                   { "Test GS2", "gmr1.bcch.seg1a.test_gs2",
1224                     FT_UINT8, BASE_DEC, NULL, 0x00,
1225                     NULL, HFILL }
1226                 },
1227                 { &hf_seg1a_spare1,
1228                   { "Spare", "gmr1.bcch.seg1a.spare1",
1229                     FT_UINT8, BASE_DEC, NULL, 0x00,
1230                     NULL, HFILL }
1231                 },
1232                 { &hf_seg1a_cell_bar_access_extension2,
1233                   { "CELL_BAR_ACCESS_EXTENSION2", "gmr1.bcch.seg1a.cell_bar_access_extension2",
1234                     FT_UINT8, BASE_DEC, NULL, 0x00,
1235                     NULL, HFILL }
1236                 },
1237                 { &hf_seg1a_spare2,
1238                   { "Spare", "gmr1.bcch.seg1a.spare2",
1239                     FT_UINT8, BASE_DEC, NULL, 0x00,
1240                     NULL, HFILL }
1241                 },
1242                 { &hf_seg1a_cell_bar_access_extension,
1243                   { "CELL_BAR_ACCESS_EXTENSION", "gmr1.bcch.seg1a.cell_bar_access_extension",
1244                     FT_UINT8, BASE_DEC, NULL, 0x00,
1245                     NULL, HFILL }
1246                 },
1247
1248                 /* Segment 2A - [1] 11.5.2.67 */
1249                 { &hf_seg2a_class_4_version,
1250                   { "Class 4 version", "gmr1.bcch.seg2a.class_4_version",
1251                     FT_UINT8, BASE_DEC, NULL, 0x00,
1252                     "Version number for current Class 4 information", HFILL }
1253                 },
1254                 { &hf_seg2a_syncinfo_sa_sirfn_delay,
1255                   { "SA_SIRFN_DELAY", "gmr1.bcch.seg2a.syncinfo.sa_sirfn_delay",
1256                     FT_UINT8, BASE_DEC, NULL, 0x00,
1257                     "Delay of system information relative to superframe", HFILL }
1258                 },
1259                 { &hf_seg2a_syncinfo_sa_bcch_stn,
1260                   { "SA_BCCH_STN", "gmr1.bcch.seg2a.syncinfo.sa_bcch_stn",
1261                     FT_UINT8, BASE_DEC, NULL, 0x00,
1262                     "Starting timeslot number", HFILL }
1263                 },
1264                 { &hf_seg2a_syncinfo_superframe_num,
1265                   { "Superframe Number", "gmr1.bcch.seg2a.syncinfo.superframe_num",
1266                     FT_UINT16, BASE_DEC, NULL, 0x00,
1267                     NULL, HFILL }
1268                 },
1269                 { &hf_seg2a_syncinfo_multiframe_num,
1270                   { "Multiframe Number", "gmr1.bcch.seg2a.syncinfo.multiframe_num",
1271                     FT_UINT8, BASE_DEC, NULL, 0x00,
1272                     "Multiframe number in a superframe", HFILL }
1273                 },
1274                 { &hf_seg2a_syncinfo_mffn_high_bit,
1275                   { "MFFN high bit", "gmr1.bcch.seg2a.syncinfo.mffn_high_bit",
1276                     FT_UINT8, BASE_DEC, NULL, 0x00,
1277                     "High bit of the TDMA FN in a multiframe", HFILL }
1278                 },
1279                 { &hf_seg2a_selcrit_rxlev_select_min,
1280                   { "RXLEV_SELECT_MIN", "gmr1.bcch.seg2a.selcrit.rxlev_select_min",
1281                     FT_UINT8, BASE_CUSTOM, segx_half_db_value_fmt, 0x00,
1282                     "Adjustment to threshold to camp-on system", HFILL }
1283                 },
1284                 { &hf_seg2a_miscinfo_sb_selection_power,
1285                   { "SB_SELECTION_POWER", "gmr1.bcch.seg2a.miscinfo.sb_selection_power",
1286                     FT_UINT8, BASE_CUSTOM, segx_half_db_value_fmt, 0x00,
1287                     NULL, HFILL }
1288                 },
1289                 { &hf_seg2a_lainfo_sa_pch_config,
1290                   { "SA_PCH_CONFIG", "gmr1.bcch.seg2a.lainfo.sa_pch_config",
1291                     FT_UINT8, BASE_DEC, NULL, 0x00,
1292                     "Paging group configuration information", HFILL }
1293                 },
1294                 { &hf_seg2a_lainfo_sa_bach_config,
1295                   { "SA_BACH_CONFIG", "gmr1.bcch.seg2a.lainfo.sa_bach_config",
1296                     FT_UINT8, BASE_DEC, NULL, 0x00,
1297                     "Alerting group configuration information", HFILL }
1298                 },
1299                 { &hf_seg2a_lainfo_rach_ts_offset,
1300                   { "RACH_TS_OFFSET", "gmr1.bcch.seg2a.lainfo.rach_ts_offset",
1301                     FT_UINT8, BASE_DEC, NULL, 0x00,
1302                     "Start of RACH window with respect to BCCH", HFILL }
1303                 },
1304                 { &hf_seg2a_lainfo_n_page_occurrences,
1305                   { "N Page Occurrences", "gmr1.bcch.seg2a.lainfo.n_page_occurrences",
1306                     FT_UINT8, BASE_DEC, NULL, 0x00,
1307                     "Number of times a page shall be retransmitted after the initial transmission", HFILL }
1308                 },
1309                 { &hf_seg2a_lainfo_imsi_attach_detach_ind,
1310                   { "IMSI attach-detach ind", "gmr1.bcch.seg2a.lainfo.imsi_attach_detach_ind",
1311                     FT_UINT8, BASE_DEC, VALS(seg2a_lainfo_imsi_attach_detach_ind_vals), 0x00,
1312                     "Should MESs apply IMSI attach and detach procedure for this LA", HFILL }
1313                 },
1314                 { &hf_seg2a_lainfo_ecsc_indication,
1315                   { "ECSC indication", "gmr1.bcch.seg2a.lainfo.ecsc_indication",
1316                     FT_UINT8, BASE_DEC, VALS(seg2a_lainfo_ecsc_indication_vals), 0x00,
1317                     "Early Classmark Sending Control", HFILL }
1318                 },
1319                 { &hf_seg2a_lainfo_si_update_ind,
1320                   { "SI update ind", "gmr1.bcch.seg2a.lainfo.si_update_ind",
1321                     FT_UINT8, BASE_DEC, NULL, 0x00,
1322                     "Flag for BACH reorganization. Value changes after each reorganization", HFILL }
1323                 },
1324
1325                 /* Segment 3A - [1] 11.5.2.71 */
1326                 { &hf_seg3a_lai_mcc,
1327                   { "Mobile Country Code (MCC)", "gmr1.bcch.seg3a.lai.mcc",
1328                     FT_UINT16, BASE_DEC, NULL, 0x00,
1329                     NULL, HFILL }
1330                 },
1331                 { &hf_seg3a_lai_mnc,
1332                   { "Mobile Network Code (MNC)", "gmr1.bcch.seg3a.lai.mnc",
1333                     FT_UINT16, BASE_DEC, NULL, 0x00,
1334                     NULL, HFILL }
1335                 },
1336                 { &hf_seg3a_lai_lac,
1337                   { "Location Area Code (LAC)", "gmr1.bcch.seg3a.lai.lac",
1338                     FT_UINT16, BASE_HEX, NULL, 0x00,
1339                     NULL, HFILL }
1340                 },
1341                 { &hf_seg3a_lai_msc_id,
1342                   { "MSC ID", "gmr1.bcch.seg3a.lai.msc_id",
1343                     FT_UINT8, BASE_DEC, NULL, 0x00,
1344                     NULL, HFILL }
1345                 },
1346                 { &hf_seg3a_lai_spot_beam_id,
1347                   { "Spot Beam ID", "gmr1.bcch.seg3a.lai.spot_beam_id",
1348                     FT_UINT16, BASE_DEC, NULL, 0x00,
1349                     NULL, HFILL }
1350                 },
1351                 { &hf_seg3a_system_sat_id,
1352                   { "Satellite ID", "gmr1.bcch.seg3a.system.sat_id",
1353                     FT_UINT8, BASE_DEC, NULL, 0x00,
1354                     NULL, HFILL }
1355                 },
1356                 { &hf_seg3a_system_sys_id,
1357                   { "System ID", "gmr1.bcch.seg3a.system.sys_id",
1358                     FT_UINT8, BASE_DEC, NULL, 0x00,
1359                     NULL, HFILL }
1360                 },
1361                 { &hf_seg3a_satpos_latitude,
1362                   { "Latitude", "gmr1.bcch.seg3a.satpos.latitude",
1363                     FT_INT8, BASE_CUSTOM, seg3a_latitude_fmt, 0x00,
1364                     NULL, HFILL }
1365                 },
1366                 { &hf_seg3a_satpos_longitude,
1367                   { "Longitude", "gmr1.bcch.seg3a.satpos.longitude",
1368                     FT_UINT16, BASE_CUSTOM, seg3a_longitude_fmt, 0x00,
1369                     NULL, HFILL }
1370                 },
1371                 { &hf_seg3a_satpos_radius,
1372                   { "Radius", "gmr1.bcch.seg3a.satpos.radius",
1373                     FT_INT16, BASE_CUSTOM, seg3a_satpos_radius_fmt, 0x00,
1374                     NULL, HFILL }
1375                 },
1376                 { &hf_seg3a_beam_latitude,
1377                   { "Latitude", "gmr1.bcch.seg3a.beam.latitude",
1378                     FT_INT16, BASE_CUSTOM, seg3a_latitude_fmt, 0x00,
1379                     NULL, HFILL }
1380                 },
1381                 { &hf_seg3a_beam_longitude,
1382                   { "Longitude", "gmr1.bcch.seg3a.beam.longitude",
1383                     FT_UINT16, BASE_CUSTOM, seg3a_longitude_fmt, 0x00,
1384                     NULL, HFILL }
1385                 },
1386                 { &hf_seg3a_miscinfo_sb_reselection_timer,
1387                   { "SB_RESELECTION_TIMER", "gmr1.bcch.seg3a.sb_reselection_timer",
1388                     FT_UINT8, BASE_CUSTOM, seg3a_miscinfo_sb_reselection_timer_fmt, 0x00,
1389                     NULL, HFILL }
1390                 },
1391                 { &hf_seg3a_spare,
1392                   { "Spare", "gmr1.bcch.seg3a.spare",
1393                     FT_UINT8, BASE_DEC, NULL, 0x00,
1394                     NULL, HFILL }
1395                 },
1396
1397                 /* System Information fields - [1] 10.1.31 & 10.1.32 */
1398                 { &hf_si_protocol_version,
1399                   { "Protocol version", "gmr1.bcch.si.protocol_version",
1400                     FT_UINT8, BASE_DEC, NULL, 0x00,
1401                     NULL, HFILL }
1402                 },
1403                 { &hf_si_block_type,
1404                   { "Block Type", "gmr1.bcch.si.block_type",
1405                     FT_UINT8, BASE_DEC, NULL, 0x00,
1406                     NULL, HFILL }
1407                 },
1408                 { &hf_si_spare,
1409                   { "Spare", "gmr1.bcch.si.spare",
1410                     FT_UINT8, BASE_DEC, NULL, 0x00,
1411                     NULL, HFILL }
1412                 },
1413                 { &hf_si1_randomization_period,
1414                   { "Randomization Period", "gmr1.bcch.si.randomization_period",
1415                     FT_UINT8, BASE_DEC, VALS(si1_randomization_period_vals), 0x00,
1416                     NULL, HFILL }
1417                 },
1418         };
1419
1420         static gint *ett[] = {
1421                 &ett_gmr1_bcch,
1422         };
1423
1424         proto_gmr1_bcch = proto_register_protocol("GEO-Mobile Radio (1) BCCH", "GMR-1 BCCH", "gmr1.bcch");
1425
1426         proto_register_field_array(proto_gmr1_bcch, hf, array_length(hf));
1427         proto_register_subtree_array(ett, array_length(ett));
1428
1429         register_dissector("gmr1_bcch", dissect_gmr1_bcch, proto_gmr1_bcch);
1430 }
1431
1432 /*
1433  * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
1434  *
1435  * Local variables:
1436  * c-basic-offset: 8
1437  * tab-width: 8
1438  * indent-tabs-mode: t
1439  * End:
1440  *
1441  * vi: set shiftwidth=8 tabstop=8 noexpandtab:
1442  * :indentSize=8:tabSize=8:noTabs=false:
1443  */