epan/dissectors/packet-mpeg-dsmcc.c

   1 /* packet-mpeg-dsmcc.c
   2  *
   3  * Routines for ISO/IEC 13818-6 DSM-CC
   4  * Copyright 2012, Weston Schmidt <weston_schmidt@alumni.purdue.edu>
   5  * Copyright 2019, Anthony Crawford <anthony.r.crawford@charter.com>
   6  *
   7  * Wireshark - Network traffic analyzer
   8  * By Gerald Combs <gerald@wireshark.org>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  * SPDX-License-Identifier: GPL-2.0-or-later
  12  */
  13
  14 #include "config.h"
  15
  16 #include <epan/packet.h>
  17 #include <epan/prefs.h>
  18 #include <epan/expert.h>
  19 #include <epan/crc32-tvb.h>
  20 #include "packet-mpeg-sect.h"
  21
  22 void proto_register_dsmcc(void);
  23 void proto_reg_handoff_dsmcc(void);
  24
  25 static dissector_handle_t dsmcc_ts_handle, dsmcc_tcp_handle, dsmcc_udp_handle;
  26
  27 /* NOTE: Please try to keep this status comment up to date until the spec is
  28  * completely implemented - there are a large number of tables in the spec.
  29  *
  30  * 13818-6 Table status:
  31  *
  32  * Missing tables:
  33  * 3-1 3-2 3-3 3-4 3-6 3-7 3-8 3-9
  34  * 4-61, 4-81, 4-82, 4-87, 4-88
  35  * 5-*
  36  * 6-4
  37  * 7-5 7-8 7-10 7-12
  38  * 8-2 8-3 8-4 8-6
  39  * 9-5 9-6
  40  * 10-*
  41  * 11-*
  42  * 12-*
  43  *
  44  * Dissected tables:
  45  * 2-1 2-4 2-6 2-7
  46  * 4-x
  47  * 6-1
  48  * 7-6 7-7
  49  * 9-2
  50  * J.3
  51  *
  52  * Validated (all parameters are checked) U-N Messages:
  53  * 0x4010, 0x4011, 0x4020, 0x4021, 0x4022, 0x4023, 0x40b0
  54  * 0x8012, 0x8013, 0x8022, 0x8023, 0x8030, 0x8031, 0x8060, 0x8061, 0x80b0
  55  * Unvalidated U-N messages:
  56  * 4032, 4033, 4042, 4043, 4060, 4061, 4062, 4063,
  57  * 4070, 4071, 4072, 4073, 4082, 4090, 40a2, 40a3
  58  * 8041, 8042, 8050, 8051, 8062, 8063, 8070, 8071,
  59  * 8072, 8073, 8082, 8092, 80a0, 80a1, 80a2, 80a3
  60  *
  61  */
  62
  63
  64 static int proto_dsmcc;
  65 static bool dsmcc_sect_check_crc;
  66
  67 /* NOTE: Please add values numerically according to 13818-6 so it is easier to
  68  * keep track of what parameters/tables are associated with each other.
  69  */
  70
  71 /* table 2-1 dsmccMessageHeader - start */
  72 static int hf_dsmcc_protocol_discriminator;
  73 static int hf_dsmcc_type;
  74 static int hf_dsmcc_message_id;
  75 static int hf_dsmcc_transaction_id;
  76 static int hf_dsmcc_header_reserved;
  77 static int hf_dsmcc_adaptation_length;
  78 static int hf_dsmcc_message_length;
  79 /* table 2-1 dsmccMessageHeader - end */
  80
  81 /* table 2-3 transactionId - start */
  82 static int hf_dsmcc_un_sess_flag_transaction_id_originator;
  83 static int hf_dsmcc_un_sess_flag_transaction_id_number;
  84 /* table 2-3 transactionId - end */
  85
  86 /* table 2-4 dsmccAdaptationHeader - start */
  87 static int hf_dsmcc_adaptation_type;
  88 /* table 2-4 dsmccAdaptationHeader - end */
  89
  90 /* table 2-6 dsmccConditionalAccess - start */
  91 static int hf_dsmcc_adaptation_ca_reserved;
  92 static int hf_dsmcc_adaptation_ca_system_id;
  93 static int hf_dsmcc_adaptation_ca_length;
  94 /* table 2-6 dsmccConditionalAccess - end */
  95
  96 /* table 2-7 dsmccUserId - start */
  97 static int hf_dsmcc_adaptation_user_id_reserved;
  98 /* table 2-7 dsmccUserId - end */
  99
 100 /* table 4-2, 4-3, 4-4 U-N messageDiscriminator - start */
 101 /*static int hf_dsmcc_un_sess_message_discriminator;*/
 102 static int hf_dsmcc_un_sess_flag_message_discriminator;
 103 static int hf_dsmcc_un_sess_flag_message_scenario;
 104 static int hf_dsmcc_un_sess_flag_message_type;
 105 /* table 4-2, 4-3, 4-4 U-N messageDiscriminator - end */
 106
 107 /* other tables in section 4.2 - start */
 108 static int hf_dsmcc_un_sess_response;
 109 static int hf_dsmcc_un_sess_reason;
 110 static int hf_dsmcc_un_sess_reserved;
 111 /* other tables in section 4.2 - end */
 112
 113 /* table 4-6 U-N user data format - start */
 114 static int hf_dsmcc_un_sess_uu_data_len;
 115 static int hf_dsmcc_un_sess_uu_data;
 116 static int hf_dsmcc_un_sess_priv_data_len;
 117 static int hf_dsmcc_un_sess_priv_data;
 118 /* table 4-6 U-N user data format - end */
 119
 120 /* table 4-7 U-N Resources - start */
 121 static int hf_dsmcc_un_sess_rsrc_desc_count;
 122 /* table 4-7 U-N Resources - end */
 123
 124 /* table 4-10 U-N Server Session Setup Indication - start */
 125 static int hf_dsmcc_un_sess_forward_count;
 126 /* table 4-10 U-N Server Session Setup Indication - end */
 127
 128 /* 4-26 Server Delete Resource Request - start */
 129 static int hf_dsmcc_un_sess_resource_count;
 130 static int hf_dsmcc_un_sess_resource_num;
 131 /* 4-26 Server Delete Resource Request - end */
 132
 133 /* table 4-30, 4-31, 4-32, 4-33, 4-34, 4-35, 4-36 - start */
 134 static int hf_dsmcc_un_sess_status_type;
 135 static int hf_dsmcc_un_sess_status_count;
 136 static int hf_dsmcc_un_sess_status_byte;
 137 /* table 4-30, 4-31, 4-32, 4-33, 4-34, 4-35, 4-36 - end */
 138
 139 /* table 4-56 Client Session In Progress - start */
 140 static int hf_dsmcc_un_sess_session_count;
 141 /* table 4-56 Client Session In Progress - end */
 142
 143 /* table 4-58 Message Fields data types - start */
 144 static int hf_dsmcc_un_sess_session_id_device_id;
 145 static int hf_dsmcc_un_sess_session_id_session_number;
 146 /* table 4-58 Message Fields data types - end */
 147
 148 /* table 4-63 U-N common descriptor header - start */
 149 static int hf_dsmcc_un_sess_rsrc_request_id;
 150 static int hf_dsmcc_un_sess_rsrc_descriptor_type;
 151 static int hf_dsmcc_un_sess_rsrc_number;
 152 static int hf_dsmcc_un_sess_rsrc_association_tag;
 153 static int hf_dsmcc_un_sess_rsrc_flags;
 154 static int hf_dsmcc_un_sess_rsrc_status;
 155 static int hf_dsmcc_un_sess_rsrc_desc_data_fields_length;
 156 static int hf_dsmcc_un_sess_rsrc_data_field_count;
 157 static int hf_dsmcc_un_sess_rsrc_type_owner_id;
 158 static int hf_dsmcc_un_sess_rsrc_type_owner_value;
 159 /* table 4-63 U-N common descriptor header - end */
 160
 161 /* table 4-64 U-N resource number assignor - start */
 162 static int hf_dsmcc_un_sess_rsrc_flag_num_assignor;
 163 static int hf_dsmcc_un_sess_rsrc_flag_num_value;
 164 /* table 4-64 U-N resource number assignor - end */
 165
 166 /* table 4-65 U-N resource association tag assignor - start */
 167 static int hf_dsmcc_un_sess_rsrc_flag_association_tag_assignor;
 168 static int hf_dsmcc_un_sess_rsrc_flag_association_tag_value;
 169 /* table 4-65 U-N resource association tag assignor - end */
 170
 171 /* table 4-66 U-N resource allocator - start */
 172 static int hf_dsmcc_un_sess_rsrc_flag_allocator;
 173 /* table 4-66 U-N resource allocator - end */
 174
 175 /* table 4-67 U-N resource attribute - start */
 176 static int hf_dsmcc_un_sess_rsrc_flag_attribute;
 177 /* table 4-67 U-N resource attribute - end */
 178
 179 /* table 4-68 U-N resource view - start */
 180 static int hf_dsmcc_un_sess_rsrc_flag_view;
 181 /* table 4-68 U-N resource view - end */
 182
 183 /* table 4-71 U-N dsmccResourceDescriptorValue() format - start */
 184 static int hf_dsmcc_un_sess_rsrc_value_type;
 185 static int hf_dsmcc_un_sess_rsrc_value_count;
 186 static int hf_dsmcc_un_sess_rsrc_value_data;
 187 static int hf_dsmcc_un_sess_rsrc_most_desired;
 188 static int hf_dsmcc_un_sess_rsrc_least_desired;
 189 /* table 4-71 U-N dsmccResourceDescriptorValue() format - end */
 190
 191 /* table 4-74 U-N Continuous Feed Session resource descriptor - start */
 192 static int hf_dsmcc_un_sess_rsrc_cfs_num_count;
 193 static int hf_dsmcc_un_sess_rsrc_cfs_num;
 194 /* table 4-74 U-N Continuous Feed Session resource descriptor - end  */
 195
 196 /* table 4-75 U-N ATM Connection resource descriptor - start */
 197 static int hf_dsmcc_un_sess_rsrc_atm_vpi;
 198 static int hf_dsmcc_un_sess_rsrc_atm_vci;
 199 /* table 4-75 U-N ATM Connection resource descriptor - end  */
 200
 201 /* table 4-76 MPEG Program - start */
 202 static int hf_dsmcc_un_sess_rsrc_mpeg_ca_pid;
 203 static int hf_dsmcc_un_sess_rsrc_mpeg_elem_stream_count;
 204 /* table 4-76 MPEG Program - end */
 205
 206 /* table 4-77 Physical Channel - start */
 207 static int hf_dsmcc_un_sess_rsrc_phys_chan_direction;
 208 /* table 4-77 Physical Channel - end */
 209
 210 /* table 4-84 IP - start */
 211 static int hf_dsmcc_un_sess_rsrc_src_ip_addr;
 212 static int hf_dsmcc_un_sess_rsrc_src_ip_port;
 213 static int hf_dsmcc_un_sess_rsrc_dst_ip_addr;
 214 static int hf_dsmcc_un_sess_rsrc_dst_ip_port;
 215 static int hf_dsmcc_un_sess_rsrc_ip_protocol;
 216 /* table 4-84 IP - end */
 217
 218 /* table 4-86 PSTN Setup - start */
 219 static int hf_dsmcc_un_sess_rsrc_pstn_calling_id;
 220 static int hf_dsmcc_un_sess_rsrc_pstn_called_id;
 221 /* table 4-86 PSTN Setup - end */
 222
 223 /* Table 4-89 Q.922 Connection - start */
 224 static int hf_dsmcc_un_sess_rsrc_dlci_count;
 225 static int hf_dsmcc_un_sess_rsrc_dlci;
 226 static int hf_dsmcc_un_sess_rsrc_dl_association_tag;
 227 /* Table 4-89 Q.922 Connection - end */
 228
 229 /* table 4-90 Shared Resource - start */
 230 static int hf_dsmcc_un_sess_rsrc_shared_resource_num;
 231 /* table 4-90 Shared Resource - end */
 232
 233 /* table 4-91 Shared Request ID - start */
 234 static int hf_dsmcc_un_sess_rsrc_shared_resource_request_id;
 235 /* table 4-91 Shared Request ID - end */
 236
 237 /* table 4-92 Headend List - start */
 238 static int hf_dsmcc_un_sess_rsrc_headend_count;
 239 static int hf_dsmcc_un_sess_rsrc_headend_code;
 240 /* table 4-92 Headend List - end */
 241
 242 /* table 4-94 SDB Continuous Feed - start */
 243 static int hf_dsmcc_un_sess_rsrc_sdb_id;
 244 static int hf_dsmcc_un_sess_rsrc_sdb_program_count;
 245 static int hf_dsmcc_un_sess_rsrc_sdb_association_tag;
 246 static int hf_dsmcc_un_sess_rsrc_sdb_broadcast_program_id;
 247 /* table 4-94 SDB Continuous Feed - end */
 248
 249 /* table 4-95 SDB Associations - start */
 250 static int hf_dsmcc_un_sess_rsrc_sdb_control_association_tag;
 251 static int hf_dsmcc_un_sess_rsrc_sdb_program_association_tag;
 252 /* table 4-95 SDB Associations - end */
 253
 254 /* table 4-96 SDB Entitlement - start */
 255 static int hf_dsmcc_un_sess_rsrc_sdb_exclude_count;
 256 static int hf_dsmcc_un_sess_rsrc_sdb_include_count;
 257 /* table 4-96 SDB Entitlement - end */
 258
 259 /* user defined 0xf001-0xf007 - start */
 260 /* Time Warner Cable Pegasus Session Setup Protocol
 261 * Version 2.3, May 19 2003
 262 * These user defined resource descriptors have been implemented in
 263 * VOD BackOffice products by Time Warner, Arris and Ericsson. */
 264 static int hf_dsmcc_un_sess_rsrc_trans_system;
 265 static int hf_dsmcc_un_sess_rsrc_inner_coding;
 266 static int hf_dsmcc_un_sess_rsrc_split_bitstream;
 267 static int hf_dsmcc_un_sess_rsrc_mod_format;
 268 static int hf_dsmcc_un_sess_rsrc_symbol_rate;
 269 static int hf_dsmcc_un_sess_rsrc_reserved;
 270 static int hf_dsmcc_un_sess_rsrc_interleave_depth;
 271 static int hf_dsmcc_un_sess_rsrc_modulation_mode;
 272 static int hf_dsmcc_un_sess_rsrc_fec;
 273 static int hf_dsmcc_un_sess_rsrc_headend_flag;
 274 static int hf_dsmcc_un_sess_rsrc_headend_tsid;
 275 static int hf_dsmcc_un_sess_rsrc_server_ca_copyprotect;
 276 static int hf_dsmcc_un_sess_rsrc_server_ca_usercount;
 277 static int hf_dsmcc_un_sess_rsrc_client_ca_info_length;
 278 static int hf_dsmcc_un_sess_rsrc_client_ca_info_data;
 279 static int hf_dsmcc_un_sess_rsrc_service_group;
 280 /* user defined 0xf001-0xf007 - end */
 281
 282 /* table 6-1 compatibilityDescriptor - start */
 283 static int hf_compat_desc_length;
 284 static int hf_compat_desc_count;
 285 static int hf_desc_type;
 286 static int hf_desc_length;
 287 static int hf_desc_spec_type;
 288 static int hf_desc_spec_data;
 289 static int hf_desc_model;
 290 static int hf_desc_version;
 291 static int hf_desc_sub_desc_count;
 292 static int hf_desc_sub_desc_type;
 293 static int hf_desc_sub_desc_len;
 294 /* table 6-1 compatibilityDescriptor - end */
 295
 296 /* table 7-3 dsmccDownloadDataHeader - start */
 297 static int hf_dsmcc_dd_download_id;
 298 static int hf_dsmcc_dd_message_id;
 299 /* table 7-3 dsmccDownloadDataHeader - end */
 300
 301 /* table 7-6 dsmccDownloadInfoIndication/InfoResponse - start */
 302 static int hf_dsmcc_dii_download_id;
 303 static int hf_dsmcc_dii_block_size;
 304 static int hf_dsmcc_dii_window_size;
 305 static int hf_dsmcc_dii_ack_period;
 306 static int hf_dsmcc_dii_t_c_download_window;
 307 static int hf_dsmcc_dii_t_c_download_scenario;
 308 static int hf_dsmcc_dii_number_of_modules;
 309 static int hf_dsmcc_dii_module_id;
 310 static int hf_dsmcc_dii_module_size;
 311 static int hf_dsmcc_dii_module_version;
 312 static int hf_dsmcc_dii_module_info_length;
 313 static int hf_dsmcc_dii_private_data_length;
 314 /* table 7-6 dsmccDownloadInfoIndication/InfoResponse - end */
 315
 316 /* table 7-7 dsmccDownloadDataBlock - start */
 317 static int hf_dsmcc_ddb_module_id;
 318 static int hf_dsmcc_ddb_version;
 319 static int hf_dsmcc_ddb_reserved;
 320 static int hf_dsmcc_ddb_block_number;
 321 /* table 7-7 dsmccDownloadDataBlock - end */
 322
 323 /* table 9-2 dsmccSection - start */
 324 static int hf_dsmcc_table_id;
 325 static int hf_dsmcc_section_syntax_indicator;
 326 static int hf_dsmcc_private_indicator;
 327 static int hf_dsmcc_reserved;
 328 static int hf_dsmcc_section_length;
 329 static int hf_dsmcc_table_id_extension;
 330 static int hf_dsmcc_reserved2;
 331 static int hf_dsmcc_version_number;
 332 static int hf_dsmcc_current_next_indicator;
 333 static int hf_dsmcc_section_number;
 334 static int hf_dsmcc_last_section_number;
 335 static int hf_dsmcc_crc;
 336 static int hf_dsmcc_checksum;
 337 /* table 9-2 dsmccSection - end */
 338
 339 /* table J.3 E-164 NSAP - start */
 340 static int hf_dsmcc_un_sess_nsap_afi;
 341 static int hf_dsmcc_un_sess_nsap_idi;
 342 static int hf_dsmcc_un_sess_nsap_ho_dsp;
 343 static int hf_dsmcc_un_sess_nsap_esi;
 344 static int hf_dsmcc_un_sess_nsap_sel;
 345 /* table J.3 E-164 NSAP - end */
 346
 347 /* TODO: this should really live in the ETV dissector, but I'm not sure how
 348  * to make the functionality work exactly right yet.  Will work on a patch
 349  * for this next.
 350  */
 351 static int hf_etv_module_abs_path;
 352 static int hf_etv_dii_authority;
 353
 354 static int ett_dsmcc;
 355 static int ett_dsmcc_payload;
 356 static int ett_dsmcc_header;
 357 static int ett_dsmcc_adaptation_header;
 358 static int ett_dsmcc_message_id;
 359 static int ett_dsmcc_transaction_id;
 360 static int ett_dsmcc_heading;
 361 static int ett_dsmcc_rsrc_number;
 362 static int ett_dsmcc_rsrc_association_tag;
 363 static int ett_dsmcc_rsrc_flags;
 364 static int ett_dsmcc_compat;
 365 static int ett_dsmcc_compat_sub_desc;
 366 static int ett_dsmcc_dii_module;
 367
 368 static expert_field ei_dsmcc_invalid_value;
 369 static expert_field ei_dsmcc_crc_invalid;
 370
 371 #define DSMCC_TCP_PORT          13819
 372 #define DSMCC_UDP_PORT          13819
 373
 374 /* DSM-CC protocol discriminator, (table 2-1) */
 375 #define DSMCC_PROT_DISC         0x11
 376
 377 #define DSMCC_SSI_MASK          0x8000
 378 #define DSMCC_PRIVATE_MASK      0x4000
 379 #define DSMCC_RESERVED_MASK              0x3000
 380 #define DSMCC_LENGTH_MASK                0x0fff
 381 #define DSMCC_RESERVED2_MASK               0xc0
 382 #define DSMCC_VERSION_NUMBER_MASK          0x3e
 383 #define DSMCC_CURRENT_NEXT_INDICATOR_MASK  0x01
 384
 385 /* DSM-CC U-N Session Flags */
 386 #define DMSCC_FLAG_MESS_DISCRIMINATOR        0xc000
 387 #define DMSCC_FLAG_MESS_SCENARIO             0x3ff0
 388 #define DMSCC_FLAG_MESS_TYPE                 0x000f
 389 #define DMSCC_FLAG_TRAN_ORIG             0xc0000000
 390 #define DMSCC_FLAG_TRAN_NUM              0x3fffffff
 391 #define DMSCC_FLAG_RSRC_NUM_ASSIGNOR         0xc000
 392 #define DMSCC_FLAG_RSRC_NUM_VALUE            0x3fff
 393 #define DMSCC_FLAG_RSRC_ASSOC_TAG_ASSIGNOR   0xc000
 394 #define DMSCC_FLAG_RSRC_ASSOC_TAG_VALUE      0x3fff
 395 #define DMSCC_FLAG_RSRC_VIEW                   0xc0
 396 #define DMSCC_FLAG_RSRC_ATTRIBUTE              0x3c
 397 #define DMSCC_FLAG_RSRC_ALLOCATOR              0x03
 398
 399 /* DSM-CC protocol U-N messages, (table 4-5) */
 400 /* 4-5 U-N Session Client Messages */
 401 #define DSMCC_UN_SESS_CLN_SESS_SET_REQ       0x4010
 402 #define DSMCC_UN_SESS_CLN_SESS_SET_CNF       0x4011
 403 #define DSMCC_UN_SESS_CLN_SESS_REL_REQ       0x4020
 404 #define DSMCC_UN_SESS_CLN_SESS_REL_CNF       0x4021
 405 #define DSMCC_UN_SESS_CLN_SESS_REL_IND       0x4022
 406 #define DSMCC_UN_SESS_CLN_SESS_REL_RES       0x4023
 407 #define DSMCC_UN_SESS_CLN_ADD_RSRC_IND       0x4032
 408 #define DSMCC_UN_SESS_CLN_ADD_RSRC_RES       0x4033
 409 #define DSMCC_UN_SESS_CLN_DEL_RSRC_IND       0x4042
 410 #define DSMCC_UN_SESS_CLN_DEL_RSRC_RES       0x4043
 411 #define DSMCC_UN_SESS_CLN_STATUS_REQ         0x4060
 412 #define DSMCC_UN_SESS_CLN_STATUS_CNF         0x4061
 413 #define DSMCC_UN_SESS_CLN_STATUS_IND         0x4062
 414 #define DSMCC_UN_SESS_CLN_STATUS_RES         0x4063
 415 #define DSMCC_UN_SESS_CLN_RESET_REQ          0x4070
 416 #define DSMCC_UN_SESS_CLN_RESET_CNF          0x4071
 417 #define DSMCC_UN_SESS_CLN_RESET_IND          0x4072
 418 #define DSMCC_UN_SESS_CLN_RESET_RES          0x4073
 419 #define DSMCC_UN_SESS_CLN_SESS_PROC_IND      0x4082
 420 #define DSMCC_UN_SESS_CLN_CONN_REQ           0x4090
 421 #define DSMCC_UN_SESS_CLN_SESS_TRN_IND       0x40a2
 422 #define DSMCC_UN_SESS_CLN_SESS_TRN_RES       0x40a3
 423 #define DSMCC_UN_SESS_CLN_SESS_INP_REQ       0x40b0
 424 /* 4-5 U-N Session Server Messages */
 425 #define DSMCC_UN_SESS_SRV_SESS_SET_IND       0x8012
 426 #define DSMCC_UN_SESS_SRV_SESS_SET_RES       0x8013
 427 #define DSMCC_UN_SESS_SRV_SESS_REL_REQ       0x8020
 428 #define DSMCC_UN_SESS_SRV_SESS_REL_CNF       0x8021
 429 #define DSMCC_UN_SESS_SRV_SESS_REL_IND       0x8022
 430 #define DSMCC_UN_SESS_SRV_SESS_REL_RES       0x8023
 431 #define DSMCC_UN_SESS_SRV_ADD_RSRC_REQ       0x8030
 432 #define DSMCC_UN_SESS_SRV_ADD_RSRC_CNF       0x8031
 433 #define DSMCC_UN_SESS_SRV_DEL_RSRC_REQ       0x8040
 434 #define DSMCC_UN_SESS_SRV_DEL_RSRC_CNF       0x8041
 435 #define DSMCC_UN_SESS_SRV_CONT_FEED_SESS_REQ 0x8050
 436 #define DSMCC_UN_SESS_SRV_CONT_FEED_SESS_CNF 0x8051
 437 #define DSMCC_UN_SESS_SRV_STATUS_REQ         0x8060
 438 #define DSMCC_UN_SESS_SRV_STATUS_CNF         0x8061
 439 #define DSMCC_UN_SESS_SRV_STATUS_IND         0x8062
 440 #define DSMCC_UN_SESS_SRV_STATUS_RES         0x8063
 441 #define DSMCC_UN_SESS_SRV_RESET_REQ          0x8070
 442 #define DSMCC_UN_SESS_SRV_RESET_CNF          0x8071
 443 #define DSMCC_UN_SESS_SRV_RESET_IND          0x8072
 444 #define DSMCC_UN_SESS_SRV_RESET_RES          0x8073
 445 #define DSMCC_UN_SESS_SRV_SESS_PROC_IND      0x8082
 446 #define DSMCC_UN_SESS_SRV_CONN_IND           0x8092
 447 #define DSMCC_UN_SESS_SRV_SESS_TRN_REQ       0x80a0
 448 #define DSMCC_UN_SESS_SRV_SESS_TRN_CNF       0x80a1
 449 #define DSMCC_UN_SESS_SRV_SESS_TRN_IND       0x80a2
 450 #define DSMCC_UN_SESS_SRV_SESS_TRN_RES       0x80a3
 451 #define DSMCC_UN_SESS_SRV_SESS_INP_REQ       0x80b0
 452 /* 4-73 U-N Session Resource Descriptors */
 453 #define RSRC_CONT_FEED_SESS     0x0001
 454 #define RSRC_ATM_CONN           0x0002
 455 #define RSRC_MPEG_PROG          0x0003
 456 #define RSRC_PHYS_CHAN          0x0004
 457 #define RSRC_TS_US_BW           0x0005
 458 #define RSRC_TS_DS_BW           0x0006
 459 #define RSRC_ATM_SVC_CONN       0x0007
 460 #define RSRC_CONN_NTFY          0x0008
 461 #define RSRC_IP                 0x0009
 462 #define RSRC_CLN_TDMA_ASSIGN    0x000a
 463 #define RSRC_PSTN_SETUP         0x000b
 464 #define RSRC_NISDN_SETUP        0x000c
 465 #define RSRC_NISDN_CONN         0x000d
 466 #define RSRC_Q922_CONN          0x000e
 467 #define RSRC_HEADEND_LIST       0x000f
 468 #define RSRC_ATM_VC_CONN        0x0010
 469 #define RSRC_SDB_CONT_FEED      0x0011
 470 #define RSRC_SDB_ASSOC          0x0012
 471 #define RSRC_SDB_ENT            0x0013
 472 #define RSRC_SHARED_RSRC        0x7ffe
 473 #define RSRC_SHARED_REQ_ID      0x7fff
 474 #define RSRC_TYPE_OWNER         0xffff
 475 /* U-N Session User Defined Resource Descriptors */
 476 #define RSRC_MODULATION_MODE    0xf001
 477 #define RSRC_HEADEND_ID         0xf003
 478 #define RSRC_SERVER_CA          0xf004
 479 #define RSRC_CLIENT_CA          0xf005
 480 #define RSRC_ETHERNET           0xf006
 481 #define RSRC_SERVICE_GROUP      0xf007
 482
 483
 484 /* 2-2 */
 485 static const range_string dsmcc_header_type_vals[] = {
 486     {    0,    0, "ISO/IEC 13818-6 Reserved" },
 487     { 0x01, 0x01, "ISO/IEC 13818-6 User-to-Network Configuration Message" },
 488     { 0x02, 0x02, "ISO/IEC 13818-6 User-to-Network Session Message" },
 489     { 0x03, 0x03, "ISO/IEC 13818-6 Download Message" },
 490     { 0x04, 0x04, "ISO/IEC 13818-6 SDB Channel Change Protocol Message" },
 491     { 0x05, 0x05, "ISO/IEC 13818-6 User-to-Network Pass-Thru Message" },
 492     { 0x06, 0x7f, "ISO/IEC 13818-6 Reserved" },
 493     { 0x80, 0xff, "User Defined Message Type" },
 494     {    0,    0, NULL }
 495 };
 496
 497 /* 2-3 */
 498 static const range_string dsmcc_un_sess_transaction_id_originator_vals[] = {
 499     {    0,    0, "Assigned by Client" },
 500     { 0x01, 0x01, "Assigned by Server" },
 501     { 0x02, 0x02, "Assigned by Network" },
 502     { 0x03, 0x03, "ISO/IEC 13818-6 Reserved" },
 503     { 0x04, 0xff, "Invalid"},
 504     {    0,    0, NULL }
 505 };
 506
 507 /* 2-5 */
 508 static const range_string dsmcc_adaptation_header_vals[] = {
 509     {    0,    0, "ISO/IEC 13818-6 Reserved" },
 510     { 0x01, 0x01, "DSM-CC Conditional Access Adaptation Format" },
 511     { 0x02, 0x02, "DSM-CC User ID Adaptation Format" },
 512     { 0x03, 0x7f, "ISO/IEC 13818-6 Reserved" },
 513     { 0x80, 0xff, "User Defined Adaptation Type" },
 514     {    0,    0, NULL }
 515 };
 516
 517 /* 4-2 */
 518 static const range_string dsmcc_un_sess_message_discriminator_vals[] = {
 519     {    0,    0, "ISO/IEC 13818-6 Reserved" },
 520     { 0x01, 0x01, "Client and Network" },
 521     { 0x02, 0x02, "Server and Network" },
 522     { 0x03, 0x0f, "ISO/IEC 13818-6 Reserved" },
 523     { 0x10, 0xff, "Invalid"},
 524     {    0,    0, NULL }
 525 };
 526
 527 /* 4-3 */
 528 static const range_string dsmcc_un_sess_message_scenario_vals[] = {
 529     {      0,      0, "ISO/IEC 13818-6 Reserved" },
 530     { 0x0001, 0x0001, "Session Setup" },
 531     { 0x0002, 0x0002, "Session Release" },
 532     { 0x0003, 0x0003, "Add Resource" },
 533     { 0x0004, 0x0004, "Delete Resource" },
 534     { 0x0005, 0x0005, "Continuous Feed Session Setup" },
 535     { 0x0006, 0x0006, "Status" },
 536     { 0x0007, 0x0007, "Reset" },
 537     { 0x0008, 0x0008, "Session Proceeding" },
 538     { 0x0009, 0x0009, "Session Connect" },
 539     { 0x000a, 0x000a, "Session Transfer" },
 540     { 0x000b, 0x000b, "Session In Progress" },
 541     { 0x000c, 0x01ff, "ISO/IEC 13818-6 Reserved" },
 542     { 0x0200, 0x03ff, "User Defined Message Scenario" },
 543     { 0x0400, 0xffff, "Invalid"},
 544     {      0,      0, NULL }
 545 };
 546
 547 /* 4-4 */
 548 static const range_string dsmcc_un_sess_message_type_vals[] = {
 549     {    0,    0, "Request Message" },
 550     { 0x01, 0x01, "Confirm Message" },
 551     { 0x02, 0x02, "Indication Message" },
 552     { 0x03, 0x03, "Response Message" },
 553     { 0x04, 0x0f, "ISO/IEC 13818-6 Reserved" },
 554     { 0x10, 0xff, "Invalid"},
 555     {    0,    0, NULL }
 556 };
 557
 558 /* 4-5 */
 559 static const value_string dsmcc_un_sess_message_id_vals[] = {
 560     { DSMCC_UN_SESS_CLN_SESS_SET_REQ,       "Client Session Setup Request" },
 561     { DSMCC_UN_SESS_CLN_SESS_SET_CNF,       "Client Session Setup Confirm" },
 562     { DSMCC_UN_SESS_CLN_SESS_REL_REQ,       "Client Session Release Request" },
 563     { DSMCC_UN_SESS_CLN_SESS_REL_CNF,       "Client Session Release Confirm" },
 564     { DSMCC_UN_SESS_CLN_SESS_REL_IND,       "Client Session Release Indication" },
 565     { DSMCC_UN_SESS_CLN_SESS_REL_RES,       "Client Session Release Response" },
 566     { DSMCC_UN_SESS_CLN_ADD_RSRC_IND,       "Client Add Resource Indication" },
 567     { DSMCC_UN_SESS_CLN_ADD_RSRC_RES,       "Client Add Resource Response" },
 568     { DSMCC_UN_SESS_CLN_DEL_RSRC_IND,       "Client Delete Resource Indication" },
 569     { DSMCC_UN_SESS_CLN_DEL_RSRC_RES,       "Client Delete Resource Response" },
 570     { DSMCC_UN_SESS_CLN_STATUS_REQ,         "Client Status Request" },
 571     { DSMCC_UN_SESS_CLN_STATUS_CNF,         "Client Status Confirm" },
 572     { DSMCC_UN_SESS_CLN_STATUS_IND,         "Client Status Indication" },
 573     { DSMCC_UN_SESS_CLN_STATUS_RES,         "Client Status Response" },
 574     { DSMCC_UN_SESS_CLN_RESET_REQ,          "Client Reset Request" },
 575     { DSMCC_UN_SESS_CLN_RESET_CNF,          "Client Reset Confirm" },
 576     { DSMCC_UN_SESS_CLN_RESET_IND,          "Client Reset Indication" },
 577     { DSMCC_UN_SESS_CLN_RESET_RES,          "Client Reset Response" },
 578     { DSMCC_UN_SESS_CLN_SESS_PROC_IND,      "Client Session Proceeding Indication" },
 579     { DSMCC_UN_SESS_CLN_CONN_REQ,           "Client Connect Request" },
 580     { DSMCC_UN_SESS_CLN_SESS_TRN_IND,       "Client Session Transfer Indication" },
 581     { DSMCC_UN_SESS_CLN_SESS_TRN_RES,       "Client Session Transfer Response" },
 582     { DSMCC_UN_SESS_CLN_SESS_INP_REQ,       "Client Session In Progress Request" },
 583     { DSMCC_UN_SESS_SRV_SESS_SET_IND,       "Server Session Setup Indication" },
 584     { DSMCC_UN_SESS_SRV_SESS_SET_RES,       "Server Session Setup Response" },
 585     { DSMCC_UN_SESS_SRV_SESS_REL_REQ,       "Server Session Release Request" },
 586     { DSMCC_UN_SESS_SRV_SESS_REL_CNF,       "Server Session Release Confirm" },
 587     { DSMCC_UN_SESS_SRV_SESS_REL_IND,       "Server Session Release Indication" },
 588     { DSMCC_UN_SESS_SRV_SESS_REL_RES,       "Server Session Release Response" },
 589     { DSMCC_UN_SESS_SRV_ADD_RSRC_REQ,       "Server Add Resource Request" },
 590     { DSMCC_UN_SESS_SRV_ADD_RSRC_CNF,       "Server Add Resource Confirm" },
 591     { DSMCC_UN_SESS_SRV_DEL_RSRC_REQ,       "Server Delete Resource Request" },
 592     { DSMCC_UN_SESS_SRV_DEL_RSRC_CNF,       "Server Delete Resource Confirm" },
 593     { DSMCC_UN_SESS_SRV_CONT_FEED_SESS_REQ, "Server Continuous Feed Session Request" },
 594     { DSMCC_UN_SESS_SRV_CONT_FEED_SESS_CNF, "Server Continuous Feed Session Confirm" },
 595     { DSMCC_UN_SESS_SRV_STATUS_REQ,         "Server Status Request" },
 596     { DSMCC_UN_SESS_SRV_STATUS_CNF,         "Server Status Confirm" },
 597     { DSMCC_UN_SESS_SRV_STATUS_IND,         "Server Status Indication" },
 598     { DSMCC_UN_SESS_SRV_STATUS_RES,         "Server Status Response" },
 599     { DSMCC_UN_SESS_SRV_RESET_REQ,          "Server Reset Request" },
 600     { DSMCC_UN_SESS_SRV_RESET_CNF,          "Server Reset Confirm" },
 601     { DSMCC_UN_SESS_SRV_RESET_IND,          "Server Reset Indication" },
 602     { DSMCC_UN_SESS_SRV_RESET_RES,          "Server Reset Response" },
 603     { DSMCC_UN_SESS_SRV_SESS_PROC_IND,      "Server Session Proceeding Indication" },
 604     { DSMCC_UN_SESS_SRV_CONN_IND,           "Server Connect Indication" },
 605     { DSMCC_UN_SESS_SRV_SESS_TRN_REQ,       "Server Session Transfer Request" },
 606     { DSMCC_UN_SESS_SRV_SESS_TRN_CNF,       "Server Session Transfer Confirm" },
 607     { DSMCC_UN_SESS_SRV_SESS_TRN_IND,       "Server Session Transfer Indication" },
 608     { DSMCC_UN_SESS_SRV_SESS_TRN_RES,       "Server Session Transfer Response" },
 609     { DSMCC_UN_SESS_SRV_SESS_INP_REQ,       "Server Session In Progress Request" },
 610     { 0, NULL }
 611 };
 612
 613 /* 4-59 */
 614 static const range_string dsmcc_un_sess_message_reason_codes_vals[] = {
 615     {      0,      0, "RsnOK. The command sequence is proceeding normally." },
 616     { 0x0001, 0x0001, "RsnNormal. Normal conditions for releasing the session." },
 617     { 0x0002, 0x0002, "RsnClProcError. Procedure error detected at the Client." },
 618     { 0x0003, 0x0003, "RsnNeProcError. Procedure error detected at the Network." },
 619     { 0x0004, 0x0004, "RsnSeProcError. Procedure error detected at the Server." },
 620     { 0x0005, 0x0005, "RsnClFormatError. Invalid format (e.g., missing parameter) detected at the Client." },
 621     { 0x0006, 0x0006, "RsnNeFormatError. Invalid format (e.g., missing parameter) detected at the Network." },
 622     { 0x0007, 0x0007, "RsnSeFormatError. Invalid format (e.g., missing parameter) detected at the Server." },
 623     { 0x0008, 0x0008, "RsnNeConfigCnf. Confirmed configuration sequence (i.e., Client must respond)" },
 624     { 0x0009, 0x0009, "RsnSeTranRefuse. Session transfer was refused by the destination Server." },
 625     { 0x000a, 0x000a, "RsnSeForwardOvl. Session forwarding is due to overload conditions." },
 626     { 0x000b, 0x000b, "RsnSeForwardMnt. Session forwarding is due to overload maintenance conditions." },
 627     { 0x000c, 0x000c, "RsnSeForwardUncond. Session forwarding is sent as an unconditional request." },
 628     { 0x000d, 0x000d, "RsnSeRejResource. Server rejected the assigned resources." },
 629     { 0x000e, 0x000e, "RsnNeBroadcast. Message is being broadcast and does not require a response." },
 630     { 0x000f, 0x000f, "RsnSeServiceTransfer. Server indicates that the Client shall establish a session to another serverId based on the context provided in the PrivateData()." },
 631     { 0x0010, 0x0010, "RsnClNoSession. Client indicates the Session ID is not active." },
 632     { 0x0011, 0x0011, "RsnSeNoSession. Server indicates the Session ID is not active." },
 633     { 0x0012, 0x0012, "RsnNeNoSession. Network indicates the Session ID is not active." },
 634     { 0x0013, 0x0013, "RsnRetrans. Message is a retransmission." },
 635     { 0x0014, 0x0014, "RsnNoTransaction. Message was received without a Transaction ID." },
 636     { 0x0015, 0x0015, "RsnClNoResource. Requested resource is not supported." },
 637     { 0x0016, 0x0016, "RsnClRejResource. Client rejected the assigned resources." },
 638     { 0x0017, 0x0017, "RsnNeRejResource. Network rejected the assigned resources assigned by the Server." },
 639     { 0x0018, 0x0018, "RsnNeTimerExpired. The message is being sent as the result of an expired timer." },
 640     { 0x0019, 0x0019, "RsnClSessionRelease. Client initiated session release." },
 641     { 0x001a, 0x001a, "RsnSeSessionRelease. Server initiated session release." },
 642     { 0x001b, 0x001b, "RsnNeSessionRelease. Network initiated session release." },
 643     { 0x001c, 0x7fff, "Reserved" },
 644     { 0x7fff, 0xffff, "User Defined Reason Code" },
 645     {      0,      0, NULL }
 646 };
 647
 648 /* 4-60 */
 649 static const range_string dsmcc_un_sess_message_response_codes_vals[] = {
 650     {      0,      0, "RspOK. Request completed with no errors." },
 651     { 0x0001, 0x0001, "RspClNoSession. Client rejected the request because the requested Session ID is invalid." },
 652     { 0x0002, 0x0002, "RspNeNoCalls. Network is unable to accept new sessions." },
 653     { 0x0003, 0x0003, "RspNeInvalidClient. Network rejected the request due to an invalid Client ID." },
 654     { 0x0004, 0x0004, "RspNeInvalidServer. Network rejected the request due to an invalid Server ID." },
 655     { 0x0005, 0x0005, "RspNeNoSession. Network rejected the request because the requested Session ID is invalid." },
 656     { 0x0006, 0x0006, "RspSeNoCalls. Server is unable to accept new sessions." },
 657     { 0x0007, 0x0007, "RspSeInvalidClient. Server rejected the request due to an invalid Client ID." },
 658     { 0x0008, 0x0008, "RspSeNoService. Server rejected the request because the requested service could not be provided." },
 659     { 0x0009, 0x0009, "RspSeNoCFS. Server rejected the request because the requested Continuous Feed Session could not be found." },
 660     { 0x000a, 0x000a, "RspClNoResponse. Network timed out before the Client responded to an Indication message." },
 661     { 0x000b, 0x000b, "RspSeNoResponse. Network timed out before the Server responded to an Indication message." },
 662     { 0x000c, 0x000f, "ISO/IEC 13818-6 reserved." },
 663     { 0x0010, 0x0010, "RspSeNoSession. Server rejected the request because the requested Session ID is invalid." },
 664     { 0x0011, 0x0011, "RspNeResourceContinue. Resource request completed with no errors but, an indicated resource was assigned an alternate value by the Network." },
 665     { 0x0012, 0x0012, "RspNeResourceFailed. Resource request failed because the Network was unable to assign the requested resources." },
 666     { 0x0013, 0x0013, "RspNeResourceOK. Requested command completed with no errors." },
 667     { 0x0014, 0x0014, "RspResourceNegotiate. Network was able to complete a request but has assigned alternate values to a negotiable field." },
 668     { 0x0015, 0x0015, "RspClSessProceed. Network is waiting on a response from the server." },
 669     { 0x0016, 0x0016, "RspClUnkRequestID. Client received a message which contained an unknown Resource Request ID." },
 670     { 0x0017, 0x0017, "RspClNoResource. Client rejected a session set-up because it was unable to use the assigned resources." },
 671     { 0x0018, 0x0018, "RspClNoCalls. Client rejected a session set-up because it was not accepting calls at that time." },
 672     { 0x0019, 0x0019, "RspNeNoResource. Network is unable to assign one or more resources to a session." },
 673     { 0x001a, 0x001f, "ISO/IEC 13818-6 reserved." },
 674     { 0x0020, 0x0020, "RspSeNoResource. Server is unable to complete a session set-up because the required resources are not available." },
 675     { 0x0021, 0x0021, "RspSeRejResource. Server rejected the assigned resources." },
 676     { 0x0022, 0x0022, "RspClProcError. Procedure error detected at the Client." },
 677     { 0x0023, 0x0023, "RspNeProcError. Procedure error detected at the Network." },
 678     { 0x0024, 0x0024, "RspSeProcError. Procedure error detected at the Server." },
 679     { 0x0025, 0x0025, "RspClFormatError. Invalid format (e.g., missing parameter) detected at Client." },
 680     { 0x0026, 0x0026, "RspNeFormatError. Invalid format (e.g., missing parameter) detected at Network." },
 681     { 0x0027, 0x0027, "RspSeFormatError. Invalid format (e.g., missing parameter) detected at Server." },
 682     { 0x0028, 0x0028, "RspSeForwardOvl. Session forwarding is due to overload conditions." },
 683     { 0x0029, 0x0029, "RspSeForwardMnt. Session forwarding is due to overload maintenance conditions." },
 684     { 0x002a, 0x002a, "RspClRejResource. Client rejected a resource assigned to a session." },
 685     { 0x002b, 0x002f, "ISO/IEC 13818-6 reserved." },
 686     { 0x0030, 0x0030, "RspSeForwardUncond. Session forwarding is sent as an unconditional request." },
 687     { 0x0031, 0x0031, "RspNeTransferFailed. Session transfer failed at the Network." },
 688     { 0x0032, 0x0032, "RspClTransferReject. Session transfer was rejected by the Client." },
 689     { 0x0033, 0x0033, "RspSeTransferReject. Session transfer was rejected by the Server." },
 690     { 0x0034, 0x0034, "RspSeTransferResource. Server rejected the session transfer due to insufficient resource." },
 691     { 0x0035, 0x0035, "RspResourceCompleted. Server has accepted the resources assigned by the Network." },
 692     { 0x0036, 0x0036, "RspForward. Server is requesting a Session Forward." },
 693     { 0x0037, 0x0037, "RspNeForwardFailed. Network is unable to process a Session Forward." },
 694     { 0x0038, 0x0038, "RspClForwarded. Session was forwarded to the indicated Client ID." },
 695     { 0x0039, 0x0040, "ISO/IEC 13818-6 reserved." },
 696     { 0x0041, 0x0041, "RspSeTransferNoRes. The transfer to Server could not get enough resources, so it rejected the transfer." },
 697     { 0x0042, 0x0042, "RspNeNotOwner. An action was requested on a session by a User which was not the owner of that session." },
 698     { 0x0043, 0x7fff, "ISO/IEC 13818-6 reserved." },
 699     { 0x8000, 0xffff, "User Defined Response Code" },
 700     {      0,      0, NULL }
 701 };
 702
 703 /* 4-61 */
 704 static const range_string dsmcc_un_sess_status_type_vals[] = {
 705     {      0,      0, "Reserved" },
 706     { 0x0001, 0x0001, "Identify Session List" },
 707     { 0x0002, 0x0002, "Identify Session Status" },
 708     { 0x0003, 0x0003, "Identify Configuration" },
 709     { 0x0004, 0x0004, "Query Resource Descriptor" },
 710     { 0x0005, 0x0005, "Query Resource Status" },
 711     { 0x0006, 0x7fff, "Reserved" },
 712     { 0x8000, 0xffff, "User Defined Status Type" },
 713     {      0,      0,  NULL }
 714 };
 715
 716 /* 4-64 */
 717 static const range_string dsmcc_un_sess_rsrc_number_assignor_vals[] = {
 718     {    0,    0, "Reserved" },
 719     { 0x01, 0x01, "Client" },
 720     { 0x02, 0x02, "Server" },
 721     { 0x03, 0x03, "Network" },
 722     { 0x04, 0xff, "Reserved" },
 723     {    0,    0, NULL }
 724 };
 725
 726 /* 4-65 */
 727 static const range_string dsmcc_un_sess_rsrc_association_tag_vals[] = {
 728     {    0,    0, "Reserved" },
 729     { 0x01, 0x01, "Client" },
 730     { 0x02, 0x02, "Server" },
 731     { 0x03, 0x03, "Network" },
 732     { 0x04, 0xff, "Reserved" },
 733     {    0,    0, NULL }
 734 };
 735
 736 /* 4-66 */
 737 static const range_string dsmcc_un_sess_rsrc_allocator_vals[] = {
 738     {    0,    0, "Unspecified" },
 739     { 0x01, 0x01, "Client" },
 740     { 0x02, 0x02, "Server" },
 741     { 0x03, 0x03, "Network" },
 742     { 0x04, 0xff, "Reserved" },
 743     {    0,    0, NULL }
 744 };
 745
 746 /* 4-67 */
 747 static const range_string dsmcc_un_sess_rsrc_attribute_vals[] = {
 748     {    0,    0, "Mandatory Non-Negotiable" },
 749     { 0x01, 0x01, "Mandatory Negotiable" },
 750     { 0x02, 0x02, "Non-Mandatory Non-Negotiable" },
 751     { 0x03, 0x03, "Non-Mandatory Negotiable" },
 752     { 0x04, 0x0f, "Reserved"},
 753     { 0x10, 0xff, "Invalid"},
 754     {    0,    0,  NULL }
 755 };
 756
 757 /* 4-68 */
 758 static const range_string dsmcc_un_sess_rsrc_view_vals[] = {
 759     {    0,    0, "Reserved" },
 760     { 0x01, 0x01, "Client View" },
 761     { 0x02, 0x02, "Server View" },
 762     { 0x03, 0x03, "Reserved" },
 763     { 0x04, 0xff, "Invalid" },
 764     {    0, 0, NULL }
 765 };
 766
 767 /* 4-69 */
 768 static const range_string dsmcc_un_sess_rsrc_status_vals[] = {
 769     {    0,    0, "Reserved" },
 770     { 0x01, 0x01, "Requested" },
 771     { 0x02, 0x02, "In Progress" },
 772     { 0x03, 0x03, "Alternate Assigned" },
 773     { 0x04, 0x04, "Assigned"},
 774     { 0x05, 0x05, "Failed"},
 775     { 0x06, 0x06, "Unprocessed"},
 776     { 0x07, 0x07, "Invalid"},
 777     { 0x08, 0x08, "Released"},
 778     { 0x09, 0x7f, "Reserved"},
 779     { 0x80, 0xff, "User Defined"},
 780     {    0,    0,  NULL }
 781 };
 782
 783 /* 4-72 */
 784 static const range_string dsmcc_un_sess_rsrc_value_types_vals[] = {
 785     {      0,      0, "Reserved" },
 786     { 0x0001, 0x0001, "Single" },
 787     { 0x0002, 0x0002, "List" },
 788     { 0x0003, 0x0003, "Range" },
 789     { 0x0004, 0x7fff, "Reserved"},
 790     { 0x8000, 0xffff, "User Defined"},
 791     {      0,      0,  NULL }
 792 };
 793
 794 /* 4-73 */
 795 static const range_string dsmcc_un_sess_rsrc_descriptor_type_vals[] = {
 796     {      0,      0, "Reserved" },
 797     { 0x0001, 0x0001, "Continuous Feed Session" },
 798     { 0x0002, 0x0002, "ATM Connection" },
 799     { 0x0003, 0x0003, "MPEG Program" },
 800     { 0x0004, 0x0004, "Physical Channel" },
 801     { 0x0005, 0x0005, "TS Upstream Bandwidth" },
 802     { 0x0006, 0x0006, "TS Downstream Bandwidth" },
 803     { 0x0007, 0x0007, "ATM SVC Connection" },
 804     { 0x0008, 0x0008, "Connection Notify" },
 805     { 0x0009, 0x0009, "IP" },
 806     { 0x000a, 0x000a, "Client TDMA Assignment" },
 807     { 0x000b, 0x000b, "PSTN Setup" },
 808     { 0x000c, 0x000c, "NISDN Setup" },
 809     { 0x000d, 0x000d, "NISDN Connection" },
 810     { 0x000e, 0x000e, "Q.922 Connections" },
 811     { 0x000f, 0x000f, "Headend List" },
 812     { 0x0010, 0x0010, "ATM VC Connection" },
 813     { 0x0011, 0x0011, "SDB Continuous Feed" },
 814     { 0x0012, 0x0012, "SDB Associations" },
 815     { 0x0013, 0x0013, "SDB Entitlement" },
 816     { 0x0014, 0x7ffd, "Reserved" },
 817     { 0x7ffe, 0x7ffe, "Shared Resource" },
 818     { 0x7fff, 0x7fff, "Shared Request ID" },
 819     { 0x8000, 0xf000, "User Defined" },
 820     { 0xf001, 0xf001, "Modulation Mode" },
 821     { 0xf002, 0xf002, "User Defined" },
 822     { 0xf003, 0xf003, "Headend ID" },
 823     { 0xf004, 0xf004, "Server Conditional Access" },
 824     { 0xf005, 0xf005, "Client Conditional Access" },
 825     { 0xf006, 0xf006, "Ethernet Interface" },
 826     { 0xf007, 0xf007, "Service Group" },
 827     { 0xf008, 0xfffe, "User Defined" },
 828     { 0xffff, 0xffff, "User Defined Type Owner" },
 829     {      0,      0,  NULL }
 830 };
 831
 832 /* table 4-78 direction values */
 833 static const range_string dsmcc_un_sess_rsrc_phys_chan_direction_vals[] = {
 834     {      0,      0, "Downstream (Server to Client)" },
 835     { 0x0001, 0x0001, "Upstream (Client to Server)" },
 836     { 0x0002, 0xffff, "ISO/IEC 13818-6 Reserved" },
 837     {      0,      0, NULL }
 838 };
 839
 840 /* 4-84 IP protocol types */
 841 static const range_string dsmcc_un_sess_rsrc_ip_protocol_types_vals[] = {
 842     {      0,      0, "Reserved" },
 843     { 0x0001, 0x0001, "TCP" },
 844     { 0x0002, 0x0002, "UDP" },
 845     { 0x0003, 0x7fff, "Reserved" },
 846     { 0x8000, 0xffff, "User Defined" },
 847     {      0,      0,  NULL }
 848 };
 849
 850 /* user defined 0xf001-0xf007 - start */
 851 static const range_string dsmcc_un_sess_rsrc_modulation_format_vals[] = {
 852     { 0x00, 0x00, "Unknown" },
 853     { 0x01, 0x05, "Reserved" },
 854     { 0x06, 0x06, "QAM16" },
 855     { 0x07, 0x07, "QAM32" },
 856     { 0x08, 0x08, "QAM64" },
 857     { 0x09, 0x0b, "Reserved" },
 858     { 0x0c, 0x0c, "QAM128" },
 859     { 0x0d, 0x0f, "Reserved" },
 860     { 0x10, 0x10, "QAM256" },
 861     { 0x11, 0xff, "Reserved" },
 862     {    0,    0, NULL }
 863 };
 864
 865 static const range_string dsmcc_un_sess_rsrc_transmission_system_vals[] = {
 866     {    0,    0, "Unknown Transmission System" },
 867     { 0x01, 0x01, "SADVB Transmission System" },
 868     { 0x02, 0x02, "GI Transmission System" },
 869     { 0x03, 0xff, "Reserved" },
 870     {    0,    0, NULL }
 871 };
 872
 873 static const range_string dsmcc_un_sess_rsrc_mod_mode_vals[] = {
 874     {    0,    0, "No Modulation Mode" },
 875     { 0x01, 0x18, "Reserved" },
 876     { 0x19, 0x19, "QAM 4 Modulation Mode"},
 877     { 0x1a, 0xff, "Reserved" },
 878     {    0,    0, NULL }
 879 };
 880
 881 static const range_string dsmcc_un_sess_rsrc_fec_vals[] = {
 882     {    0,    0, "FEC Transmission System" },
 883     { 0x01, 0x01, "FEC DAVIC" },
 884     { 0x02, 0xff, "Reserved"},
 885     {    0,    0, NULL }
 886 };
 887
 888 static const range_string dsmcc_un_sess_rsrc_headend_flag_vals[] = {
 889     {    0,    0, "Invalid" },
 890     { 0x01, 0x01, "The session is intended for the Head End named by the HeadEndId" },
 891     { 0x02, 0x02, "The session is intended for the Head End where the content is introduced to the network" },
 892     { 0x03, 0x03, "The session is intended for all Head Ends that have QAMs"},
 893     { 0x04, 0x04, "The session is intended for the QAM with an output Transport Stream ID named by the TransportStreamId"},
 894     { 0x05, 0xff, "Invalid" },
 895     {    0,    0, NULL }
 896 };
 897 /* user defined 0xf001-0xf007 - end */
 898
 899 /* 7-4 */
 900 static const value_string dsmcc_dd_message_id_vals[] = {
 901     { 0x1001, "Download Info Request" },
 902     { 0x1002, "Download Info Indication" },
 903     { 0x1003, "Download Data Block" },
 904     { 0x1004, "Download Data Request" },
 905     { 0x1005, "Download Data Cancel" },
 906     { 0x1006, "Download Server Initiate" },
 907     {      0, NULL }
 908 };
 909
 910 /* 9-2 */
 911 static const value_string dsmcc_payload_name_vals[] = {
 912     { DSMCC_TID_LLCSNAP,   "LLCSNAP" },
 913     { DSMCC_TID_UN_MSG,    "User Network Message" },
 914     { DSMCC_TID_DD_MSG,    "Download Data Message" },
 915     { DSMCC_TID_DESC_LIST, "Descriptor List" },
 916     { DSMCC_TID_PRIVATE,   "Private" },
 917     { 0, NULL }
 918 };
 919
 920 /* U-N Session Message Flags */
 921 static int * const bf_message_id[] = {
 922     &hf_dsmcc_un_sess_flag_message_discriminator,
 923     &hf_dsmcc_un_sess_flag_message_scenario,
 924     &hf_dsmcc_un_sess_flag_message_type,
 925     NULL
 926 };
 927 static int * const bf_transaction_id[] = {
 928     &hf_dsmcc_un_sess_flag_transaction_id_originator,
 929     &hf_dsmcc_un_sess_flag_transaction_id_number,
 930     NULL
 931 };
 932 static int * const bf_rsrc_number[] = {
 933     &hf_dsmcc_un_sess_rsrc_flag_num_assignor,
 934     &hf_dsmcc_un_sess_rsrc_flag_num_value,
 935     NULL
 936 };
 937 static int * const bf_rsrc_association_tag[] = {
 938     &hf_dsmcc_un_sess_rsrc_flag_association_tag_assignor,
 939     &hf_dsmcc_un_sess_rsrc_flag_association_tag_value,
 940     NULL
 941 };
 942 static int * const bf_rsrc_flags[] = {
 943     &hf_dsmcc_un_sess_rsrc_flag_view,
 944     &hf_dsmcc_un_sess_rsrc_flag_attribute,
 945     &hf_dsmcc_un_sess_rsrc_flag_allocator,
 946     NULL
 947 };
 948
 949 /* Table J.3 E.164 NSAP */
 950 static unsigned
 951 dissect_dsmcc_un_session_nsap(
 952         tvbuff_t *tvb, unsigned offset, packet_info *pinfo _U_, proto_tree *sub_tree)
 953 {
 954     unsigned offset_start;
 955
 956     offset_start = offset;
 957     proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_nsap_afi, tvb, offset, 1, ENC_NA);
 958     offset += 1;
 959     proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_nsap_idi, tvb, offset, 8, ENC_NA);
 960     offset += 8;
 961     proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_nsap_ho_dsp, tvb, offset, 4, ENC_BIG_ENDIAN);
 962     offset += 4;
 963     proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_nsap_esi, tvb, offset, 6, ENC_NA);
 964     offset += 6;
 965     proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_nsap_sel, tvb, offset, 1, ENC_NA);
 966     offset += 1;
 967
 968     return offset-offset_start;
 969 }
 970
 971 /* 4-58 SessionId */
 972 static unsigned
 973 dissect_dsmcc_un_session_id(
 974         tvbuff_t *tvb, unsigned offset, packet_info *pinfo _U_, proto_tree *sub_tree)
 975 {
 976     proto_tree *sub_sub_tree;
 977     unsigned    offset_start;
 978
 979     offset_start = offset;
 980
 981     sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 10, ett_dsmcc_heading, NULL, "Session ID");
 982     proto_item_set_text(sub_sub_tree, "Session ID: 0x%s", tvb_bytes_to_str(pinfo->pool, tvb, offset, 10));
 983     proto_tree_add_item(sub_sub_tree, hf_dsmcc_un_sess_session_id_device_id, tvb, offset, 6, ENC_NA);
 984     offset += 6;
 985     proto_tree_add_item(sub_sub_tree, hf_dsmcc_un_sess_session_id_session_number, tvb, offset, 4, ENC_BIG_ENDIAN);
 986     offset += 4;
 987
 988     return offset-offset_start;
 989 }
 990
 991
 992 /* Table 2-4 Adaptation Header Format */
 993 static void
 994 dissect_dsmcc_adaptation_header(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 995 {
 996     tvbuff_t   *sub_tvb;
 997     unsigned    offset = 0;
 998     proto_item *pi;
 999     proto_tree *sub_tree;
1000     proto_tree *sub_sub_tree;
1001     uint8_t     type, tmp;
1002     uint16_t    ca_len;
1003
1004     type = tvb_get_uint8(tvb, offset);
1005
1006     if (1 == type) {
1007         sub_tree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_dsmcc_adaptation_header, NULL, "Adaptation Header");
1008         proto_tree_add_item(sub_tree, hf_dsmcc_adaptation_type, tvb, offset, 1, ENC_BIG_ENDIAN);
1009         offset += 1;
1010         tmp = tvb_get_uint8(tvb, offset);
1011         pi = proto_tree_add_item(sub_tree, hf_dsmcc_adaptation_ca_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
1012         if (0xff != tmp) {
1013             expert_add_info_format(pinfo, pi, &ei_dsmcc_invalid_value, "Invalid value - should be 0xff");
1014         }
1015         offset += 1;
1016         proto_tree_add_item(sub_tree, hf_dsmcc_adaptation_ca_system_id, tvb, offset, 2, ENC_BIG_ENDIAN);
1017         offset += 2;
1018         ca_len = tvb_get_ntohs(tvb, offset);
1019         proto_tree_add_item(sub_tree, hf_dsmcc_adaptation_ca_length, tvb, offset, 2, ENC_BIG_ENDIAN);
1020         offset += 2;
1021         sub_tvb = tvb_new_subset_length(tvb, offset, ca_len);
1022         call_data_dissector(sub_tvb, pinfo, tree);
1023     } else if (2 == type) {
1024         sub_tree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_dsmcc_adaptation_header, NULL, "Adaptation Header");
1025         proto_tree_add_item(sub_tree, hf_dsmcc_adaptation_type, tvb, offset, 1, ENC_BIG_ENDIAN);
1026         offset += 1;
1027         tmp = tvb_get_uint8(tvb, offset);
1028         pi = proto_tree_add_item(sub_tree, hf_dsmcc_adaptation_user_id_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
1029         if (0xff != tmp) {
1030             expert_add_info_format(pinfo, pi, &ei_dsmcc_invalid_value, "Invalid value - should be 0xff");
1031         }
1032         offset += 1;
1033         sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "User ID");
1034         dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1035     } else {
1036         sub_tree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_dsmcc_adaptation_header, NULL, "Unknown Adaptation Header");
1037         proto_tree_add_item(sub_tree, hf_dsmcc_adaptation_type, tvb, offset, 1, ENC_BIG_ENDIAN);
1038     }
1039 }
1040
1041 /* Table 2-1 DSM-CC Message Header Format */
1042 static unsigned
1043 dissect_dsmcc_header(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, unsigned offset, bool download_header)
1044 {
1045     tvbuff_t   *sub_tvb;
1046     proto_item *pi;
1047     proto_tree *sub_tree;
1048     uint8_t     prot_disc, adaptation_len;
1049     unsigned    reserved, offset_start;
1050     int         msg_id, tx_id;
1051
1052     offset_start = offset;
1053
1054     prot_disc = tvb_get_uint8(tvb, offset);
1055     reserved = tvb_get_uint8(tvb, 8+offset);
1056     adaptation_len = tvb_get_uint8(tvb, 9+offset);
1057
1058     sub_tree = proto_tree_add_subtree(tree, tvb, offset, 12+adaptation_len, ett_dsmcc_header, NULL, "DSM-CC Header");
1059     pi = proto_tree_add_item(sub_tree, hf_dsmcc_protocol_discriminator, tvb, offset, 1, ENC_BIG_ENDIAN);
1060     if (DSMCC_PROT_DISC != prot_disc) {
1061         expert_add_info_format(pinfo, pi, &ei_dsmcc_invalid_value, "Invalid value - should be 0x11");
1062     }
1063     offset += 1;
1064     proto_tree_add_item(sub_tree, hf_dsmcc_type, tvb, offset, 1, ENC_BIG_ENDIAN);
1065     offset += 1;
1066     if (true == download_header) {
1067         msg_id = hf_dsmcc_dd_message_id;
1068         tx_id = hf_dsmcc_dd_download_id;
1069         proto_tree_add_item(sub_tree, msg_id, tvb, offset, 2, ENC_BIG_ENDIAN);
1070         offset += 2;
1071         proto_tree_add_item(sub_tree, tx_id, tvb, offset, 4, ENC_BIG_ENDIAN);
1072         offset += 4;
1073     } else {
1074         msg_id = hf_dsmcc_message_id;
1075         tx_id = hf_dsmcc_transaction_id;
1076         proto_tree_add_bitmask_with_flags(sub_tree, tvb, offset, msg_id, ett_dsmcc_message_id, bf_message_id, ENC_BIG_ENDIAN, BMT_NO_APPEND);
1077         offset += 2;
1078         proto_tree_add_bitmask_with_flags(sub_tree, tvb, offset, tx_id, ett_dsmcc_transaction_id, bf_transaction_id, ENC_BIG_ENDIAN, BMT_NO_APPEND);
1079         offset += 4;
1080     }
1081
1082     pi = proto_tree_add_item(sub_tree, hf_dsmcc_header_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
1083     if (0xff != reserved) {
1084         expert_add_info_format(pinfo, pi, &ei_dsmcc_invalid_value, "Invalid value - should be 0xff");
1085     }
1086     offset += 1;
1087
1088     proto_tree_add_item(sub_tree, hf_dsmcc_adaptation_length, tvb, offset, 1, ENC_BIG_ENDIAN);
1089     offset += 1;
1090     proto_tree_add_item(sub_tree, hf_dsmcc_message_length, tvb, offset, 2, ENC_BIG_ENDIAN);
1091     offset += 2;
1092
1093     if (0 < adaptation_len) {
1094         sub_tvb = tvb_new_subset_length(tvb, offset, adaptation_len);
1095         dissect_dsmcc_adaptation_header(sub_tvb, pinfo, sub_tree);
1096         offset += adaptation_len;
1097     }
1098
1099     return offset-offset_start;
1100 }
1101
1102 static unsigned
1103 dissect_dsmcc_dii_compat_desc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
1104         unsigned offset)
1105 {
1106     int         i, j;
1107     uint8_t     sub_count, sub_len;
1108     uint16_t    len, count;
1109     proto_tree *compat_tree;
1110     proto_tree *desc_sub_tree;
1111
1112     len = tvb_get_ntohs(tvb, offset);
1113     proto_tree_add_item(tree, hf_compat_desc_length, tvb, offset, 2, ENC_BIG_ENDIAN);
1114     offset += 2;
1115
1116     if (0 < len) {
1117         count = tvb_get_ntohs(tvb, offset);
1118         proto_tree_add_item(tree, hf_compat_desc_count, tvb, offset, 2, ENC_BIG_ENDIAN);
1119         offset += 2;
1120
1121         for (i = 0; i < count; i++) {
1122             compat_tree = proto_tree_add_subtree(tree, tvb, offset, len, ett_dsmcc_compat, NULL, "Compatibility Descriptor");
1123             proto_tree_add_item(compat_tree, hf_desc_type, tvb, offset, 1, ENC_BIG_ENDIAN);
1124             offset += 1;
1125             proto_tree_add_item(compat_tree, hf_desc_length, tvb, offset, 1, ENC_BIG_ENDIAN);
1126             offset += 1;
1127             proto_tree_add_item(compat_tree, hf_desc_spec_type, tvb, offset, 1, ENC_BIG_ENDIAN);
1128             offset += 1;
1129             proto_tree_add_item(compat_tree, hf_desc_spec_data, tvb, offset, 3, ENC_BIG_ENDIAN);
1130             offset += 3;
1131             proto_tree_add_item(compat_tree, hf_desc_model, tvb, offset, 2, ENC_BIG_ENDIAN);
1132             offset += 2;
1133             proto_tree_add_item(compat_tree, hf_desc_version, tvb, offset, 2, ENC_BIG_ENDIAN);
1134             offset += 2;
1135
1136             sub_count = tvb_get_uint8(tvb, offset);
1137             proto_tree_add_item(compat_tree, hf_desc_sub_desc_count, tvb, offset, 1, ENC_BIG_ENDIAN);
1138             offset += 1;
1139
1140             for (j = 0; j < sub_count; j++) {
1141                 sub_len = tvb_get_uint8(tvb, offset+1);
1142
1143                 desc_sub_tree = proto_tree_add_subtree(compat_tree, tvb, offset, sub_len+2,
1144                                             ett_dsmcc_compat_sub_desc, NULL, "Sub Descriptor");
1145                 proto_tree_add_item(desc_sub_tree, hf_desc_sub_desc_type, tvb, offset, 1, ENC_BIG_ENDIAN);
1146                 offset += 1;
1147                 proto_tree_add_item(desc_sub_tree, hf_desc_sub_desc_len, tvb, offset, 1, ENC_BIG_ENDIAN);
1148                 offset += 1;
1149
1150                 offset += sub_len;
1151             }
1152         }
1153
1154         if( 1000 == offset ) {
1155             expert_add_info( pinfo, NULL, &ei_dsmcc_crc_invalid);
1156         }
1157     }
1158
1159     return 2 + len;
1160 }
1161
1162 static void
1163 dissect_dsmcc_dii(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
1164         unsigned offset)
1165 {
1166     uint16_t    modules, module_id, private_data_len;
1167     uint8_t     module_info_len, module_version;
1168     unsigned    i, module_size;
1169     proto_tree *mod_tree;
1170
1171     proto_tree_add_item(tree, hf_dsmcc_dii_download_id, tvb, offset, 4, ENC_BIG_ENDIAN);
1172     offset += 4;
1173     proto_tree_add_item(tree, hf_dsmcc_dii_block_size, tvb, offset, 2, ENC_BIG_ENDIAN);
1174     offset += 2;
1175     proto_tree_add_item(tree, hf_dsmcc_dii_window_size, tvb, offset, 1, ENC_BIG_ENDIAN);
1176     offset +=1;
1177     proto_tree_add_item(tree, hf_dsmcc_dii_ack_period, tvb, offset, 1, ENC_BIG_ENDIAN);
1178     offset +=1;
1179     proto_tree_add_item(tree, hf_dsmcc_dii_t_c_download_window, tvb, offset, 4, ENC_BIG_ENDIAN);
1180     offset += 4;
1181     proto_tree_add_item(tree, hf_dsmcc_dii_t_c_download_scenario, tvb, offset, 4, ENC_BIG_ENDIAN);
1182     offset += 4;
1183     offset += dissect_dsmcc_dii_compat_desc(tvb, pinfo, tree, offset);
1184     proto_tree_add_item(tree, hf_dsmcc_dii_number_of_modules, tvb, offset, 2, ENC_BIG_ENDIAN);
1185     modules = tvb_get_ntohs(tvb, offset);
1186     offset += 2;
1187
1188     for (i = 0; i < modules; i++ ) {
1189         module_id = tvb_get_ntohs(tvb, offset);
1190         module_size = tvb_get_ntohl(tvb, 2+offset);
1191         module_version = tvb_get_uint8(tvb, 6+offset);
1192
1193         mod_tree = proto_tree_add_subtree_format(tree, tvb, offset, -1,
1194                 ett_dsmcc_dii_module, NULL, "Module Id: 0x%x, Version: %u, Size: %u",
1195                 module_id, module_version, module_size);
1196         proto_tree_add_item(mod_tree, hf_dsmcc_dii_module_id, tvb, offset, 2, ENC_BIG_ENDIAN);
1197         offset += 2;
1198         proto_tree_add_item(mod_tree, hf_dsmcc_dii_module_size, tvb, offset, 4, ENC_BIG_ENDIAN);
1199         offset += 4;
1200         proto_tree_add_item(mod_tree, hf_dsmcc_dii_module_version, tvb, offset, 1, ENC_BIG_ENDIAN);
1201         offset +=1;
1202
1203         module_info_len = tvb_get_uint8(tvb, offset);
1204         proto_tree_add_item(mod_tree, hf_dsmcc_dii_module_info_length, tvb, offset, 1, ENC_BIG_ENDIAN);
1205         offset +=1;
1206         if (0 < module_info_len) {
1207             proto_tree_add_item(mod_tree, hf_etv_module_abs_path, tvb, offset, 1,
1208                 ENC_ASCII|ENC_BIG_ENDIAN);
1209             offset += module_info_len;
1210         }
1211     }
1212
1213     private_data_len = tvb_get_ntohs(tvb, offset);
1214     proto_tree_add_item(tree, hf_dsmcc_dii_private_data_length, tvb, offset, 2, ENC_BIG_ENDIAN);
1215     offset += 2;
1216
1217     if (0 < private_data_len) {
1218         proto_tree_add_item(tree, hf_etv_dii_authority, tvb, offset, 1,
1219             ENC_ASCII|ENC_BIG_ENDIAN);
1220         /*offset += private_data_len;*/
1221     }
1222 }
1223
1224
1225 static void
1226 dissect_dsmcc_ddb(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
1227             proto_tree *top_tree, unsigned offset)
1228 {
1229     tvbuff_t   *sub_tvb;
1230     proto_item *pi;
1231     uint8_t     reserved;
1232
1233     proto_tree_add_item(tree, hf_dsmcc_ddb_module_id, tvb, offset, 2, ENC_BIG_ENDIAN);
1234     offset += 2;
1235     proto_tree_add_item(tree, hf_dsmcc_ddb_version, tvb, offset, 1, ENC_BIG_ENDIAN);
1236     offset +=1;
1237     reserved = tvb_get_uint8(tvb, offset);
1238     pi = proto_tree_add_item(tree, hf_dsmcc_ddb_reserved, tvb,
1239         offset, 1, ENC_BIG_ENDIAN);
1240     if (0xff != reserved) {
1241         expert_add_info_format(pinfo, pi, &ei_dsmcc_invalid_value,
1242                     "Invalid value - should be 0xff");
1243     }
1244     offset +=1;
1245     proto_tree_add_item(tree, hf_dsmcc_ddb_block_number, tvb, offset, 2, ENC_BIG_ENDIAN);
1246     offset += 2;
1247
1248     sub_tvb = tvb_new_subset_remaining(tvb, offset);
1249     call_data_dissector(sub_tvb, pinfo, top_tree);
1250 }
1251
1252
1253 static void
1254 dissect_dsmcc_un_download(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_tree *top_tree)
1255 {
1256     proto_tree *sub_tree;
1257     uint16_t   msg_id;
1258     unsigned   offset = 0;
1259
1260     msg_id = tvb_get_ntohs(tvb, offset+2);
1261
1262     sub_tree = proto_tree_add_subtree_format(tree, tvb, 0, -1, ett_dsmcc_payload, NULL,
1263             "User Network Message - %s", val_to_str(msg_id, dsmcc_dd_message_id_vals, "%u"));
1264
1265     switch (msg_id) {
1266         case 0x1001:
1267         case 0x1002:
1268             offset += dissect_dsmcc_header(tvb, pinfo, sub_tree, offset, false);
1269             dissect_dsmcc_dii(tvb, pinfo, sub_tree, offset);
1270             break;
1271         case 0x1003:
1272             offset += dissect_dsmcc_header(tvb, pinfo, sub_tree, offset, true);
1273             dissect_dsmcc_ddb(tvb, pinfo, sub_tree, top_tree, offset);
1274             break;
1275         case 0x1004:
1276             /* TODO: Add support */
1277             break;
1278         case 0x1005:
1279             /* TODO: Add support */
1280             break;
1281         case 0x1006:
1282             /* TODO: Add support */
1283             break;
1284         default:
1285             break;
1286     }
1287 }
1288
1289 /* table 4-71 dsmccResourceDescriptorValue format*/
1290 static unsigned
1291 dissect_dsmcc_un_session_resource_value(
1292         tvbuff_t *tvb, unsigned offset, packet_info *pinfo _U_, proto_tree *sub_tree, unsigned value_len)
1293 {
1294     uint32_t i, counter, resource_value_type;
1295     unsigned offset_start;
1296
1297     offset_start = offset;
1298
1299     proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_rsrc_value_type, tvb, offset, 2, ENC_BIG_ENDIAN, &resource_value_type);
1300     offset += 2;
1301     if (resource_value_type == 1)  /* single value */
1302     {
1303         proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_rsrc_value_data, tvb, offset, value_len, ENC_NA);
1304         offset += value_len;
1305     }
1306     else if (resource_value_type == 2)  /* list value */
1307     {
1308         proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_rsrc_value_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1309         offset += 2;
1310         for (i=0; i<counter; i++)
1311         {
1312             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_rsrc_value_data, tvb, offset, value_len, ENC_NA);
1313             offset += value_len;
1314         }
1315     }
1316     else if (resource_value_type == 3)  /* range value */
1317     {
1318         proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_rsrc_most_desired, tvb, offset, value_len, ENC_NA);
1319         offset += value_len;
1320         proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_rsrc_least_desired, tvb, offset, value_len, ENC_NA);
1321         offset += value_len;
1322     }
1323
1324     return offset-offset_start;
1325 }
1326
1327
1328 static unsigned
1329 dissect_dsmcc_un_session_resources(
1330         tvbuff_t *tvb, unsigned offset, packet_info *pinfo _U_, proto_tree *sub_tree)
1331 {
1332     proto_tree  *pi;
1333     proto_tree  *sub_sub_tree;
1334     proto_tree  *sub_sub_sub_tree;
1335     proto_tree  *sub_sub_sub_sub_tree;
1336     proto_tree  *rsrc_tree;
1337     uint32_t     i, j, counter, resource_count;
1338     uint16_t     tmp, resource_type, data_fields_length, counter_ca;
1339     unsigned     offset_start;
1340
1341     offset_start = offset;
1342
1343     /* Table 4-62 General format of the DSM-CC Resource Descriptor - dsmccResourceDescriptor() */
1344     proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_rsrc_desc_count, tvb, offset, 2, ENC_BIG_ENDIAN, &resource_count);
1345     offset += 2;
1346     for (j=0; j<resource_count; j++)
1347     {
1348         sub_sub_tree = proto_tree_add_subtree_format(sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Resource %u", 1+j);
1349
1350         /* Table 4-63 - commonDescriptorHeader() */
1351         sub_sub_sub_tree = proto_tree_add_subtree(sub_sub_tree, tvb, offset, 14, ett_dsmcc_heading, NULL, "Header");
1352         proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_request_id, tvb, offset, 2, ENC_NA);
1353         offset += 2;
1354         proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_descriptor_type, tvb, offset, 2, ENC_BIG_ENDIAN);
1355         resource_type = tvb_get_uint16(tvb, offset, ENC_BIG_ENDIAN);
1356         offset += 2;
1357         proto_tree_add_bitmask_with_flags(sub_sub_sub_tree, tvb, offset, hf_dsmcc_un_sess_rsrc_number, ett_dsmcc_rsrc_number, bf_rsrc_number, ENC_BIG_ENDIAN, BMT_NO_APPEND);
1358         offset += 2;
1359         proto_tree_add_bitmask_with_flags(sub_sub_sub_tree, tvb, offset, hf_dsmcc_un_sess_rsrc_association_tag, ett_dsmcc_rsrc_association_tag, bf_rsrc_association_tag, ENC_BIG_ENDIAN, BMT_NO_APPEND);
1360         offset += 2;
1361         proto_tree_add_bitmask_with_flags(sub_sub_sub_tree, tvb, offset, hf_dsmcc_un_sess_rsrc_flags, ett_dsmcc_rsrc_flags, bf_rsrc_flags, ENC_BIG_ENDIAN, BMT_NO_APPEND);
1362         offset += 1;
1363         proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_status, tvb, offset, 1, ENC_BIG_ENDIAN);
1364         offset += 1;
1365         proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_desc_data_fields_length, tvb, offset, 2, ENC_BIG_ENDIAN);
1366         data_fields_length = tvb_get_uint16(tvb, offset, ENC_BIG_ENDIAN);
1367         offset += 2;
1368         proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_data_field_count, tvb, offset, 2, ENC_BIG_ENDIAN);
1369         offset += 2;
1370
1371         /* Resource data - resourceDescriptorDataFields() */
1372         sub_sub_sub_tree = proto_tree_add_subtree(sub_sub_tree, tvb, offset, data_fields_length, ett_dsmcc_heading, NULL, "Data");
1373         switch (resource_type)
1374         {
1375             /* Table 4-74 Continuous Feed Session */
1376             case RSRC_CONT_FEED_SESS:
1377                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 10, ett_dsmcc_heading, NULL, "Session ID");
1378                 proto_tree_add_item(rsrc_tree, hf_dsmcc_un_sess_session_id_device_id, tvb, offset, 6, ENC_NA);
1379                 offset += 6;
1380                 proto_tree_add_item(rsrc_tree, hf_dsmcc_un_sess_session_id_session_number, tvb, offset, 4, ENC_BIG_ENDIAN);
1381                 offset += 4;
1382                 proto_tree_add_item_ret_uint(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_cfs_num_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1383                 offset += 2;
1384                 for (i=0; i<counter; i++)
1385                 {
1386                     proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_cfs_num, tvb, offset, 2, ENC_NA);
1387                 }
1388                 break;
1389             /* Table 4-75 ATM Connection */
1390             case RSRC_ATM_CONN:
1391                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "ATM Address:");
1392                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 20);
1393                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "ATM VCI:");
1394                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 2);
1395                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "ATM VPI:");
1396                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 2);
1397                 break;
1398             /* Table 4-76 MPEG Program */
1399             case RSRC_MPEG_PROG:
1400                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "MPEG Program Number:");
1401                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 2);
1402                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "MPEG PMT PID:");
1403                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 2);
1404                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_mpeg_ca_pid, tvb, offset, 2, ENC_BIG_ENDIAN);
1405                 offset += 2;
1406                 proto_tree_add_item_ret_uint(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_mpeg_elem_stream_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1407                 offset += 2;
1408                 for (i=0; i<counter; i++)
1409                 {
1410                     rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "MPEG PID:");
1411                     offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 2);
1412                     rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "MPEG Stream Type:");
1413                     offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 1);
1414                     proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_reserved, tvb, offset, 1, ENC_NA);
1415                     offset += 1;
1416                     rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "MPEG Association Tag:");
1417                     offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 2);
1418                 }
1419                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "MPEG PCR:");
1420                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 2);
1421                 break;
1422             /* Table 4-77 Physical Channel */
1423             case RSRC_PHYS_CHAN:
1424                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Channel ID (Hz):");
1425                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 4);
1426                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_phys_chan_direction, tvb, offset, 2, ENC_BIG_ENDIAN);
1427                 offset += 2;
1428                 break;
1429             /* Table 4-79 TS Upstream Bandwidth */
1430             case RSRC_TS_US_BW:
1431                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "TS Upstream Bandwidth:");
1432                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 4);
1433                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "TS Upstream TSID:");
1434                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 4);
1435                 break;
1436             /* Table 4-80 TS Downstream Bandwidth */
1437             case RSRC_TS_DS_BW:
1438                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "TS Downstream Bandwidth:");
1439                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 4);
1440                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "TS Downstream TSID:");
1441                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 4);
1442                 break;
1443             /* Table 4-81 ATM SVC Connection */
1444             case RSRC_ATM_SVC_CONN:
1445                 /* TODO - Unsure how to implement ITU-T Q.2931 */
1446                 break;
1447             /* Table 4-82 Connection Notify */
1448             case RSRC_CONN_NTFY:
1449                 /* no data fields */
1450                 break;
1451             /* Table 4-84 IP */
1452             case RSRC_IP:
1453                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_src_ip_addr, tvb, offset, 4, ENC_BIG_ENDIAN);
1454                 offset += 4;
1455                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_src_ip_port, tvb, offset, 2, ENC_BIG_ENDIAN);
1456                 offset += 2;
1457                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_dst_ip_addr, tvb, offset, 4, ENC_BIG_ENDIAN);
1458                 offset += 4;
1459                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_dst_ip_port, tvb, offset, 2, ENC_BIG_ENDIAN);
1460                 offset += 2;
1461                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_ip_protocol, tvb, offset, 2, ENC_BIG_ENDIAN);
1462                 offset += 2;
1463                 break;
1464             /* Table 4-85 Client TDMA Assignment */
1465             case RSRC_CLN_TDMA_ASSIGN:
1466                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Start Slot Number:");
1467                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 4);
1468                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Number of Slots:");
1469                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 4);
1470                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Slot Spacing:");
1471                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 4);
1472                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Upstream Transport ID:");
1473                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 4);
1474                 break;
1475             /* Table 4-86 PSTN Setup */
1476             case RSRC_PSTN_SETUP:
1477                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_pstn_calling_id, tvb, offset, 12, ENC_NA);
1478                 offset += 12;
1479                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_pstn_called_id, tvb, offset, 12, ENC_NA);
1480                 offset += 12;
1481                 break;
1482             /* Table 4-87 NISDN Setup */
1483             case RSRC_NISDN_SETUP:
1484             /*  TODO - Unsure how to implement ITU-T Q.931 */
1485                 break;
1486             /* Table 4-88 NISDN Connection */
1487             case RSRC_NISDN_CONN:
1488             /*  TODO - Unsure how to implement ITU-T Q.931 */
1489                 break;
1490             /* Table 4-89 Q.922 Connection */
1491             case RSRC_Q922_CONN:
1492                 proto_tree_add_item_ret_uint(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_dlci_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1493                 offset += 2;
1494                 for (i=0; i<counter; i++)
1495                 {
1496                     proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_dlci, tvb, offset, 2, ENC_NA);
1497                     offset += 2;
1498                     proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_dl_association_tag, tvb, offset, 2, ENC_NA);
1499                     offset += 2;
1500                 }
1501                 break;
1502             /* Table 4-92 Headend List */
1503             case RSRC_HEADEND_LIST:
1504                 proto_tree_add_item_ret_uint(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_headend_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1505                 offset += 2;
1506                 for (i=0; i<counter; i++)
1507                 {
1508                     proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_headend_code, tvb, offset, 20, ENC_NA);
1509                     offset += 20;
1510                 }
1511                 break;
1512             /* Table 4-93 ATM VC Connection */
1513             case RSRC_ATM_VC_CONN:
1514                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_atm_vpi, tvb, offset, 2, ENC_NA);
1515                 offset += 2;
1516                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_atm_vci, tvb, offset, 2, ENC_NA);
1517                 offset += 2;
1518                 break;
1519             /* Table 4-94 SDB Continuous Feed */
1520             case RSRC_SDB_CONT_FEED:
1521                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_sdb_id, tvb, offset, 6, ENC_NA);
1522                 offset += 6;
1523                 proto_tree_add_item_ret_uint(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_sdb_program_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1524                 offset += 2;
1525                 for (i=0; i<counter; i++)
1526                 {
1527                     proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_sdb_association_tag, tvb, offset, 2, ENC_NA);
1528                     offset += 2;
1529                     proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_sdb_broadcast_program_id, tvb, offset, 2, ENC_NA);
1530                     offset += 2;
1531                 }
1532                 break;
1533             /* Table 4-95 SDB Associations */
1534             case RSRC_SDB_ASSOC:
1535                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_sdb_control_association_tag, tvb, offset, 2, ENC_NA);
1536                 offset += 2;
1537                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_sdb_program_association_tag, tvb, offset, 2, ENC_NA);
1538                 offset += 2;
1539                 break;
1540             /* Table 4-96 SDB Entitlement */
1541             case RSRC_SDB_ENT:
1542                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_sdb_id, tvb, offset, 6, ENC_NA);
1543                 offset += 6;
1544                 proto_tree_add_item_ret_uint(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_sdb_exclude_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1545                 offset += 2;
1546                 for (i=0; i<counter; i++)
1547                 {
1548                     proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_sdb_broadcast_program_id, tvb, offset, 2, ENC_NA);
1549                     offset += 2;
1550                 }
1551                 proto_tree_add_item_ret_uint(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_sdb_include_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1552                 offset += 2;
1553                 for (i=0; i<counter; i++)
1554                 {
1555                     proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_sdb_broadcast_program_id, tvb, offset, 2, ENC_NA);
1556                     offset += 2;
1557                 }
1558                 break;
1559             /* User Defined - Modulation Mode */
1560             case RSRC_MODULATION_MODE:
1561                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_trans_system, tvb, offset, 1, ENC_BIG_ENDIAN);
1562                 offset += 1;
1563                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_inner_coding, tvb, offset, 1, ENC_BIG_ENDIAN);
1564                 offset += 1;
1565                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_split_bitstream, tvb, offset, 1, ENC_BIG_ENDIAN);
1566                 offset += 1;
1567                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_mod_format, tvb, offset, 1, ENC_BIG_ENDIAN);
1568                 offset += 1;
1569                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_symbol_rate, tvb, offset, 4, ENC_BIG_ENDIAN);
1570                 offset += 4;
1571                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_reserved, tvb, offset, 1, ENC_NA);
1572                 offset += 1;
1573                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_interleave_depth, tvb, offset, 1, ENC_BIG_ENDIAN);
1574                 offset += 1;
1575                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_modulation_mode, tvb, offset, 1, ENC_BIG_ENDIAN);
1576                 offset += 1;
1577                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_fec, tvb, offset, 1, ENC_BIG_ENDIAN);
1578                 offset += 1;
1579                 break;
1580             /* User Defined - Headend ID */
1581             case RSRC_HEADEND_ID:
1582                 tmp = tvb_get_uint16(tvb, offset, ENC_BIG_ENDIAN);
1583                 pi = proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_headend_flag, tvb, offset, 2, ENC_BIG_ENDIAN);
1584                 if ((tmp == 0) || (tmp > 4)) {
1585                     expert_add_info_format(pinfo, pi, &ei_dsmcc_invalid_value, "Invalid value - should be values 1 to 4");
1586                 }
1587                 offset += 2;
1588                 sub_sub_sub_sub_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Headend ID:");
1589                 offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_sub_sub_tree);
1590                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_headend_tsid, tvb, offset, 4, ENC_BIG_ENDIAN);
1591                 offset += 4;
1592                 break;
1593             /* User Defined - Server Conditional Access */
1594             case RSRC_SERVER_CA:
1595                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Server CA System ID:");
1596                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 2);
1597                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_server_ca_copyprotect, tvb, offset, 2, ENC_NA);
1598                 offset += 2;
1599                 proto_tree_add_item_ret_uint(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_server_ca_usercount, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1600                 offset += 2;
1601                 for (i=0; i<counter; i++)
1602                 {
1603                     sub_sub_sub_sub_tree = proto_tree_add_subtree_format(sub_sub_sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "User ID %u", 1+i);
1604                     offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_sub_sub_tree);
1605                 }
1606                 break;
1607             /* User Defined - Client Conditional Access */
1608             case RSRC_CLIENT_CA:
1609                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Client CA System ID:");
1610                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 2);
1611                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_client_ca_info_length, tvb, offset, 2, ENC_BIG_ENDIAN);
1612                 counter_ca = tvb_get_uint16(tvb, offset, ENC_BIG_ENDIAN);
1613                 offset += 2;
1614                 if (counter_ca > 0)
1615                 {
1616                     proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_client_ca_info_data, tvb, offset, counter_ca, ENC_NA);
1617                     offset = offset + counter_ca;
1618                 }
1619                 break;
1620             /* User Defined - Ethernet Interface */
1621             case RSRC_ETHERNET:
1622                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Ethernet Source UDP:");
1623                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 2);
1624                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Ethernet Source IP:");
1625                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 4);
1626                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Ethernet Source MAC:");
1627                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 6);
1628                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Ethernet Destination UDP:");
1629                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 2);
1630                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Ethernet Destination IP:");
1631                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 4);
1632                 rsrc_tree = proto_tree_add_subtree(sub_sub_sub_tree, tvb, offset, 0, ett_dsmcc_heading, NULL, "Ethernet Destination MAC:");
1633                 offset += dissect_dsmcc_un_session_resource_value(tvb, offset, pinfo, rsrc_tree, 6);
1634                 break;
1635             /* User Defined - Service Group */
1636             case RSRC_SERVICE_GROUP:
1637                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_value_type, tvb, offset, 2, ENC_BIG_ENDIAN);
1638                 offset += 2;
1639                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_service_group, tvb, offset, 4, ENC_BIG_ENDIAN);
1640                 offset += 4;
1641                 break;
1642             /* Table 4-90 Shared Resource */
1643             case RSRC_SHARED_RSRC:
1644                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_shared_resource_num, tvb, offset, 2, ENC_NA);
1645                 offset += 2;
1646                 break;
1647             /* Table 4-91 Shared Resource Request ID */
1648             case RSRC_SHARED_REQ_ID:
1649                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_shared_resource_request_id, tvb, offset, 2, ENC_NA);
1650                 offset += 2;
1651                 break;
1652             /* Table 4-63 Type Owner */
1653             case RSRC_TYPE_OWNER:
1654                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_type_owner_id, tvb, offset, 3, ENC_NA);
1655                 offset += 3;
1656                 proto_tree_add_item(sub_sub_sub_tree, hf_dsmcc_un_sess_rsrc_type_owner_value, tvb, offset, 3, ENC_NA);
1657                 offset += 3;
1658                 break;
1659             default:
1660                 break;
1661         }
1662     }
1663
1664     return offset-offset_start;
1665 }
1666
1667 /* UserData() is vendor proprietary, therefore not dissected. */
1668 static unsigned
1669 dissect_dsmcc_un_session_user_data(
1670         tvbuff_t *tvb, unsigned offset, packet_info *pinfo _U_, proto_tree *tree)
1671 {
1672     unsigned   offset_start;
1673     uint16_t uu_len, priv_len;
1674
1675     offset_start = offset;
1676
1677     uu_len = tvb_get_ntohs(tvb, offset);
1678     proto_tree_add_item(tree, hf_dsmcc_un_sess_uu_data_len, tvb, offset, 2, ENC_BIG_ENDIAN);
1679     offset += 2;
1680
1681     if (uu_len>0) {
1682         proto_tree_add_item(tree, hf_dsmcc_un_sess_uu_data, tvb, offset, uu_len, ENC_NA);
1683         offset += uu_len;
1684     }
1685
1686     priv_len = tvb_get_ntohs(tvb, offset);
1687     proto_tree_add_item(tree, hf_dsmcc_un_sess_priv_data_len, tvb, offset, 2, ENC_BIG_ENDIAN);
1688     offset += 2;
1689
1690     if (priv_len>0) {
1691         proto_tree_add_item(tree, hf_dsmcc_un_sess_priv_data, tvb, offset, priv_len, ENC_NA);
1692         offset += priv_len;
1693     }
1694
1695     return offset-offset_start;
1696 }
1697
1698
1699 static void
1700 dissect_dsmcc_un_session(tvbuff_t *tvb, packet_info *pinfo,
1701         proto_tree *tree, proto_tree *top_tree _U_)
1702 {
1703     proto_item  *pi;
1704     proto_tree  *sub_tree;
1705     proto_tree  *sub_sub_tree;
1706     uint32_t    i, counter;
1707     uint16_t    msg_id;
1708     unsigned    offset = 0;
1709
1710     msg_id = tvb_get_ntohs(tvb, offset+2);
1711
1712     sub_tree = proto_tree_add_subtree_format(tree, tvb, offset, -1,
1713             ett_dsmcc_payload, &pi, "User Network Message (Session) - %s",
1714             val_to_str(msg_id, dsmcc_un_sess_message_id_vals, "0x%x"));
1715     col_append_sep_str(pinfo->cinfo, COL_INFO, NULL,
1716             val_to_str(msg_id, dsmcc_un_sess_message_id_vals, "0x%x"));
1717
1718     offset += dissect_dsmcc_header(tvb, pinfo, sub_tree, offset, false);
1719
1720     switch (msg_id) {
1721
1722         /* CLIENT Messages */
1723         case DSMCC_UN_SESS_CLN_SESS_SET_REQ:
1724             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1725             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reserved, tvb, offset, 2, ENC_BIG_ENDIAN);
1726             offset += 2;
1727             /* client nsap */
1728             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Client ID");
1729             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1730             /* server nsap */
1731             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Server ID");
1732             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1733             /* user data */
1734             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1735             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1736             break;
1737         case DSMCC_UN_SESS_CLN_SESS_SET_CNF:
1738             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1739             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
1740             offset += 2;
1741             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Server ID");
1742             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1743             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "Resources");
1744             offset += dissect_dsmcc_un_session_resources(tvb, offset, pinfo, sub_sub_tree);
1745             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1746             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1747             break;
1748         case DSMCC_UN_SESS_CLN_SESS_REL_REQ:
1749             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1750             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
1751             offset += 2;
1752             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1753             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1754             break;
1755         case DSMCC_UN_SESS_CLN_SESS_REL_CNF:
1756             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1757             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
1758             offset += 2;
1759             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1760             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1761             break;
1762         case DSMCC_UN_SESS_CLN_SESS_REL_IND:
1763             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1764             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
1765             offset += 2;
1766             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1767             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1768             break;
1769         case DSMCC_UN_SESS_CLN_SESS_REL_RES:
1770             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1771             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
1772             offset += 2;
1773             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1774             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1775             break;
1776         case DSMCC_UN_SESS_CLN_ADD_RSRC_IND:
1777             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1778             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "Resources");
1779             offset += dissect_dsmcc_un_session_resources(tvb, offset, pinfo, sub_sub_tree);
1780             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1781             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1782             break;
1783         case DSMCC_UN_SESS_CLN_ADD_RSRC_RES:
1784             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1785             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
1786             offset += 2;
1787             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "Resources");
1788             offset += dissect_dsmcc_un_session_resources(tvb, offset, pinfo, sub_sub_tree);
1789             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1790             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1791             break;
1792         case DSMCC_UN_SESS_CLN_DEL_RSRC_IND:
1793             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1794             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
1795             offset += 2;
1796             proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_resource_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1797             offset += 2;
1798             for (i=0; i<counter; i++)
1799             {
1800                 proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_resource_num, tvb, offset, 2, ENC_NA);
1801                 offset += 2;
1802             }
1803             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1804             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1805             break;
1806         case DSMCC_UN_SESS_CLN_DEL_RSRC_RES:
1807             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1808             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
1809             offset += 2;
1810             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1811             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1812             break;
1813         case DSMCC_UN_SESS_CLN_STATUS_REQ:
1814             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1815             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
1816             offset += 2;
1817             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Client ID");
1818             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1819             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_type, tvb, offset, 2, ENC_BIG_ENDIAN);
1820             offset += 2;
1821             proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_status_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1822             offset += 2;
1823             for (i=0; i<counter; i++)
1824             {
1825                 proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_byte, tvb, offset, 1, ENC_NA);
1826                 offset += 1;
1827             }
1828             break;
1829         case DSMCC_UN_SESS_CLN_STATUS_CNF:
1830             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
1831             offset += 2;
1832             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_type, tvb, offset, 2, ENC_BIG_ENDIAN);
1833             offset += 2;
1834             proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_status_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1835             offset += 2;
1836             for (i=0; i<counter; i++)
1837             {
1838                 proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_byte, tvb, offset, 1, ENC_NA);
1839                 offset += 1;
1840             }
1841             break;
1842         case DSMCC_UN_SESS_CLN_STATUS_IND:
1843             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
1844             offset += 2;
1845             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_type, tvb, offset, 2, ENC_BIG_ENDIAN);
1846             offset += 2;
1847             proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_status_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1848             offset += 2;
1849             for (i=0; i<counter; i++)
1850             {
1851                 proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_byte, tvb, offset, 1, ENC_NA);
1852                 offset += 1;
1853             }
1854             break;
1855         case DSMCC_UN_SESS_CLN_STATUS_RES:
1856             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
1857             offset += 2;
1858             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_type, tvb, offset, 2, ENC_BIG_ENDIAN);
1859             offset += 2;
1860             proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_status_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1861             offset += 2;
1862             for (i=0; i<counter; i++)
1863             {
1864                 proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_byte, tvb, offset, 1, ENC_NA);
1865                 offset += 1;
1866             }
1867             break;
1868         case DSMCC_UN_SESS_CLN_RESET_REQ:
1869             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Client ID");
1870             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1871             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
1872             offset += 2;
1873             break;
1874         case DSMCC_UN_SESS_CLN_RESET_CNF:
1875             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Client ID");
1876             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1877             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
1878             offset += 2;
1879             break;
1880         case DSMCC_UN_SESS_CLN_RESET_IND:
1881             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Client ID");
1882             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1883             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
1884             offset += 2;
1885             break;
1886         case DSMCC_UN_SESS_CLN_RESET_RES:
1887             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Client ID");
1888             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1889             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
1890             offset += 2;
1891             break;
1892         case DSMCC_UN_SESS_CLN_SESS_PROC_IND:
1893             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1894             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
1895             offset += 2;
1896             break;
1897         case DSMCC_UN_SESS_CLN_CONN_REQ:
1898             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1899             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1900             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1901             break;
1902         case DSMCC_UN_SESS_CLN_SESS_TRN_IND:
1903             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1904             proto_tree_add_item(sub_tree, hf_dsmcc_reserved, tvb, offset, 2, ENC_NA);
1905             offset += 2;
1906             /* client */
1907             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Client ID");
1908             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1909             /* old server */
1910             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Old Server ID");
1911             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1912             /* new server */
1913             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "New Server ID");
1914             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1915             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "Resources");
1916             offset += dissect_dsmcc_un_session_resources(tvb, offset, pinfo, sub_sub_tree);
1917             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1918             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1919             break;
1920         case DSMCC_UN_SESS_CLN_SESS_TRN_RES:
1921             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1922             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
1923             offset += 2;
1924             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1925             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1926             break;
1927         case DSMCC_UN_SESS_CLN_SESS_INP_REQ:
1928             proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_session_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1929             offset += 2;
1930             for (i=0; i<counter; i++)
1931             {
1932                 offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1933             }
1934             break;
1935
1936         /* SERVER Messages */
1937         case DSMCC_UN_SESS_SRV_SESS_SET_IND:
1938             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1939             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reserved, tvb, offset, 2, ENC_BIG_ENDIAN);
1940             offset += 2;
1941             /* client */
1942             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Client ID");
1943             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1944             /* server */
1945             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Server ID");
1946             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1947             proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_forward_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
1948             offset += 2;
1949             for (i=0; i<counter; i++)
1950             {
1951                 sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Forward Server ID");
1952                 offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1953             }
1954             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1955             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1956             break;
1957         case DSMCC_UN_SESS_SRV_SESS_SET_RES:
1958             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1959             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
1960             offset += 2;
1961             /* server */
1962             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Server ID");
1963             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1964             /* next server */
1965             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Next Server ID");
1966             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
1967             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "Resources");
1968             offset += dissect_dsmcc_un_session_resources(tvb, offset, pinfo, sub_sub_tree);
1969             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1970             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1971             break;
1972         case DSMCC_UN_SESS_SRV_SESS_REL_REQ:
1973             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1974             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
1975             offset += 2;
1976             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1977             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1978             break;
1979         case DSMCC_UN_SESS_SRV_SESS_REL_CNF:
1980             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1981             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
1982             offset += 2;
1983             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1984             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1985             break;
1986         case DSMCC_UN_SESS_SRV_SESS_REL_IND:
1987             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1988             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
1989             offset += 2;
1990             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1991             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1992             break;
1993         case DSMCC_UN_SESS_SRV_SESS_REL_RES:
1994             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
1995             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
1996             offset += 2;
1997             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
1998             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
1999             break;
2000         case DSMCC_UN_SESS_SRV_ADD_RSRC_REQ:
2001             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
2002             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "Resources");
2003             offset += dissect_dsmcc_un_session_resources(tvb, offset, pinfo, sub_sub_tree);
2004             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
2005             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
2006             break;
2007         case DSMCC_UN_SESS_SRV_ADD_RSRC_CNF:
2008             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
2009             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
2010             offset += 2;
2011             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "Resources");
2012             offset += dissect_dsmcc_un_session_resources(tvb, offset, pinfo, sub_sub_tree);
2013             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
2014             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
2015             break;
2016         case DSMCC_UN_SESS_SRV_DEL_RSRC_REQ:
2017             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
2018             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
2019             offset += 2;
2020             proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_resource_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
2021             offset += 2;
2022             for (i=0; i<counter; i++)
2023             {
2024                 proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_resource_num, tvb, offset, 2, ENC_NA);
2025                 offset += 2;
2026             }
2027             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
2028             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
2029             break;
2030         case DSMCC_UN_SESS_SRV_DEL_RSRC_CNF:
2031             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
2032             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
2033             offset += 2;
2034             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
2035             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
2036             break;
2037         case DSMCC_UN_SESS_SRV_CONT_FEED_SESS_REQ:
2038             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
2039             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reserved, tvb, offset, 2, ENC_BIG_ENDIAN);
2040             offset += 2;
2041             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Server ID");
2042             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
2043             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "Resources");
2044             offset += dissect_dsmcc_un_session_resources(tvb, offset, pinfo, sub_sub_tree);
2045             break;
2046         case DSMCC_UN_SESS_SRV_CONT_FEED_SESS_CNF:
2047             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
2048             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
2049             offset += 2;
2050             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "Resources");
2051             offset += dissect_dsmcc_un_session_resources(tvb, offset, pinfo, sub_sub_tree);
2052             break;
2053         case DSMCC_UN_SESS_SRV_STATUS_REQ:
2054             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
2055             offset += 2;
2056             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Server ID");
2057             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
2058             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_type, tvb, offset, 2, ENC_BIG_ENDIAN);
2059             offset += 2;
2060             proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_status_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
2061             offset += 2;
2062             for (i=0; i<counter; i++)
2063             {
2064                 proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_byte, tvb, offset, 1, ENC_NA);
2065                 offset += 1;
2066             }
2067             break;
2068         case DSMCC_UN_SESS_SRV_STATUS_CNF:
2069             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
2070             offset += 2;
2071             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_type, tvb, offset, 2, ENC_BIG_ENDIAN);
2072             offset += 2;
2073             proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_status_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
2074             offset += 2;
2075             for (i=0; i<counter; i++)
2076             {
2077                 proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_byte, tvb, offset, 1, ENC_NA);
2078                 offset += 1;
2079             }
2080             break;
2081         case DSMCC_UN_SESS_SRV_STATUS_IND:
2082             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
2083             offset += 2;
2084             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_type, tvb, offset, 2, ENC_BIG_ENDIAN);
2085             offset += 2;
2086             proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_status_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
2087             offset += 2;
2088             for (i=0; i<counter; i++)
2089             {
2090                 proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_byte, tvb, offset, 1, ENC_NA);
2091                 offset += 1;
2092             }
2093             break;
2094         case DSMCC_UN_SESS_SRV_STATUS_RES:
2095             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
2096             offset += 2;
2097             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_type, tvb, offset, 2, ENC_BIG_ENDIAN);
2098             offset += 2;
2099             proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_status_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
2100             offset += 2;
2101             for (i=0; i<counter; i++)
2102             {
2103                 proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_status_byte, tvb, offset, 1, ENC_NA);
2104                 offset += 1;
2105             }
2106             break;
2107         case DSMCC_UN_SESS_SRV_RESET_REQ:
2108             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Server ID");
2109             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
2110             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
2111             offset += 2;
2112             break;
2113         case DSMCC_UN_SESS_SRV_RESET_CNF:
2114             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Server ID");
2115             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
2116             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
2117             offset += 2;
2118             break;
2119         case DSMCC_UN_SESS_SRV_RESET_IND:
2120             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Server ID");
2121             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
2122             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
2123             offset += 2;
2124             break;
2125         case DSMCC_UN_SESS_SRV_RESET_RES:
2126             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Server ID");
2127             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
2128             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
2129             offset += 2;
2130             break;
2131         case DSMCC_UN_SESS_SRV_SESS_PROC_IND:
2132             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
2133             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_reason, tvb, offset, 2, ENC_BIG_ENDIAN);
2134             offset += 2;
2135             break;
2136         case DSMCC_UN_SESS_SRV_CONN_IND:
2137             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
2138             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
2139             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
2140             break;
2141         case DSMCC_UN_SESS_SRV_SESS_TRN_REQ:
2142             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
2143             proto_tree_add_item(sub_tree, hf_dsmcc_reserved, tvb, offset, 2, ENC_NA);
2144             offset += 2;
2145             /* destination server */
2146             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Destination Server ID");
2147             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
2148             /* base server */
2149             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Base Server ID");
2150             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
2151             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
2152             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
2153             break;
2154         case DSMCC_UN_SESS_SRV_SESS_TRN_CNF:
2155             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
2156             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
2157             offset += 2;
2158             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
2159             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
2160             break;
2161         case DSMCC_UN_SESS_SRV_SESS_TRN_IND:
2162             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
2163             proto_tree_add_item(sub_tree, hf_dsmcc_reserved, tvb, offset, 2, ENC_NA);
2164             offset += 2;
2165             /* client */
2166             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Client ID");
2167             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
2168             /* source server */
2169             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Source Server ID");
2170             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
2171             /* base server */
2172             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, 20, ett_dsmcc_heading, NULL, "Base Server ID");
2173             offset += dissect_dsmcc_un_session_nsap(tvb, offset, pinfo, sub_sub_tree);
2174             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "Resources");
2175             offset += dissect_dsmcc_un_session_resources(tvb, offset, pinfo, sub_sub_tree);
2176             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
2177             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
2178             break;
2179         case DSMCC_UN_SESS_SRV_SESS_TRN_RES:
2180             offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
2181             proto_tree_add_item(sub_tree, hf_dsmcc_un_sess_response, tvb, offset, 2, ENC_BIG_ENDIAN);
2182             offset += 2;
2183             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "Resources");
2184             offset += dissect_dsmcc_un_session_resources(tvb, offset, pinfo, sub_sub_tree);
2185             sub_sub_tree = proto_tree_add_subtree(sub_tree, tvb, offset, -1, ett_dsmcc_heading, NULL, "User Data");
2186             offset += dissect_dsmcc_un_session_user_data(tvb, offset, pinfo, sub_sub_tree);
2187             break;
2188         case DSMCC_UN_SESS_SRV_SESS_INP_REQ:
2189             proto_tree_add_item_ret_uint(sub_tree, hf_dsmcc_un_sess_session_count, tvb, offset, 2, ENC_BIG_ENDIAN, &counter);
2190             offset += 2;
2191             for (i=0; i<counter; i++)
2192             {
2193                 offset += dissect_dsmcc_un_session_id(tvb, offset, pinfo, sub_tree);
2194             }
2195             break;
2196         default:
2197             break;
2198     }
2199     proto_item_set_len(pi, offset);
2200 }
2201
2202
2203 static void
2204 dissect_dsmcc_un(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
2205             proto_tree *top_tree)
2206 {
2207     uint8_t type;
2208
2209     /* dsmccMessageHeader.dsmccType */
2210     type = tvb_get_uint8(tvb, 1);
2211
2212     switch (type) {
2213         case 1: /* user-to-network configuration */
2214             /* TODO: Add support */
2215             break;
2216         case 2: /* user-to-network session */
2217             dissect_dsmcc_un_session(tvb, pinfo, tree, top_tree);
2218             break;
2219         case 3: /* user-to-network download */
2220             dissect_dsmcc_un_download(tvb, pinfo, tree, top_tree);
2221             break;
2222         case 4: /* sdb channel change protocol */
2223             /* TODO: Add support */
2224             break;
2225         case 5: /* user-to-network pass-thru */
2226             /* TODO: Add support */
2227             break;
2228         default:
2229             break;
2230     }
2231 }
2232
2233
2234 static int
2235 dissect_dsmcc_ts(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree_in, void *data _U_)
2236 {
2237     proto_item *pi;
2238     proto_tree *tree;
2239     unsigned    crc_len;
2240     uint8_t     tid;
2241     uint16_t    sect_len;
2242     uint32_t    crc, calculated_crc;
2243     const char *label;
2244     tvbuff_t   *sub_tvb;
2245     uint16_t    ssi;
2246     unsigned    offset = 0;
2247
2248     pi = proto_tree_add_item(tree_in, proto_dsmcc, tvb, 0, -1, ENC_NA);
2249     tree = proto_item_add_subtree(pi, ett_dsmcc);
2250
2251     col_set_str(pinfo->cinfo, COL_PROTOCOL, "DSM-CC");
2252
2253     tid = tvb_get_uint8(tvb, offset);
2254     proto_tree_add_item(tree, hf_dsmcc_table_id, tvb, offset, 1, ENC_BIG_ENDIAN);
2255     offset +=1;
2256     ssi = tvb_get_ntohs(tvb, offset);
2257     ssi &= DSMCC_SSI_MASK;
2258     proto_tree_add_item(tree, hf_dsmcc_section_syntax_indicator, tvb, offset, 2, ENC_BIG_ENDIAN);
2259     proto_tree_add_item(tree, hf_dsmcc_private_indicator, tvb, offset, 2, ENC_BIG_ENDIAN);
2260     proto_tree_add_item(tree, hf_dsmcc_reserved, tvb, offset, 2, ENC_BIG_ENDIAN);
2261     proto_tree_add_item(tree, hf_dsmcc_section_length, tvb, offset, 2, ENC_BIG_ENDIAN);
2262     sect_len = tvb_get_ntohs(tvb, offset);
2263     sect_len &= DSMCC_LENGTH_MASK;
2264     offset += 2;
2265
2266     proto_tree_add_item(tree, hf_dsmcc_table_id_extension, tvb, offset, 2, ENC_BIG_ENDIAN);
2267     offset += 2;
2268     proto_tree_add_item(tree, hf_dsmcc_reserved2, tvb, offset, 1, ENC_BIG_ENDIAN);
2269     proto_tree_add_item(tree, hf_dsmcc_version_number, tvb, offset, 1, ENC_BIG_ENDIAN);
2270     proto_tree_add_item(tree, hf_dsmcc_current_next_indicator, tvb, offset, 1, ENC_BIG_ENDIAN);
2271     offset +=1;
2272     proto_tree_add_item(tree, hf_dsmcc_section_number, tvb, offset, 1, ENC_BIG_ENDIAN);
2273     offset +=1;
2274     proto_tree_add_item(tree, hf_dsmcc_last_section_number, tvb, offset, 1, ENC_BIG_ENDIAN);
2275     offset +=1;
2276
2277     sub_tvb = tvb_new_subset_length(tvb, offset, sect_len-9);
2278     switch (tid) {
2279         case DSMCC_TID_LLCSNAP:
2280             /* TODO: Add support */
2281             break;
2282         case DSMCC_TID_UN_MSG:
2283         case DSMCC_TID_DD_MSG:
2284             dissect_dsmcc_un(sub_tvb, pinfo, tree, tree_in);
2285             break;
2286         case DSMCC_TID_DESC_LIST:
2287             /* TODO: Add support */
2288             break;
2289         case DSMCC_TID_PRIVATE:
2290             /* TODO: Add support */
2291             break;
2292         default:
2293             break;
2294     }
2295
2296     crc_len = 3 + sect_len - 4; /* Add the header, remove the crc */
2297     if (ssi) {
2298         crc = tvb_get_ntohl(tvb, crc_len);
2299
2300         calculated_crc = crc;
2301         label = "Unverified";
2302         if (dsmcc_sect_check_crc) {
2303             label = "Verified";
2304             calculated_crc = crc32_mpeg2_tvb_offset(tvb, 0, crc_len);
2305         }
2306
2307         if (calculated_crc == crc) {
2308             proto_tree_add_uint_format( tree, hf_dsmcc_crc, tvb,
2309                 crc_len, 4, crc, "CRC: 0x%08x [%s]", crc, label);
2310         } else {
2311             proto_item *msg_error;
2312
2313             msg_error = proto_tree_add_uint_format( tree, hf_dsmcc_crc, tvb,
2314                         crc_len, 4, crc,
2315                         "CRC: 0x%08x [Failed Verification (Calculated: 0x%08x)]",
2316                         crc, calculated_crc );
2317             proto_item_set_generated(msg_error);
2318             expert_add_info( pinfo, msg_error, &ei_dsmcc_crc_invalid);
2319         }
2320     } else {
2321         /* TODO: actually check the checksum */
2322         proto_tree_add_checksum(tree, tvb, crc_len, hf_dsmcc_checksum,
2323             -1, NULL, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NO_FLAGS);
2324     }
2325
2326     return tvb_reported_length(tvb);
2327 }
2328
2329
2330 static int dissect_dsmcc_tcp(tvbuff_t *tvb, packet_info *pinfo,
2331         proto_tree *tree, void *data _U_)
2332 {
2333     proto_item *pi;
2334     proto_tree *sub_tree;
2335
2336     if (tvb_get_uint8(tvb, 0) != DSMCC_PROT_DISC)
2337         return 0;
2338
2339     col_set_str(pinfo->cinfo, COL_PROTOCOL, "DSM-CC");
2340     col_clear(pinfo->cinfo, COL_INFO);
2341
2342     pi = proto_tree_add_item(tree, proto_dsmcc, tvb, 0, -1, ENC_NA);
2343     sub_tree = proto_item_add_subtree(pi, ett_dsmcc);
2344
2345     dissect_dsmcc_un(tvb, pinfo, sub_tree, tree);
2346
2347     return tvb_reported_length(tvb);
2348 }
2349
2350
2351 static int dissect_dsmcc_udp(tvbuff_t *tvb, packet_info *pinfo,
2352         proto_tree *tree, void *data _U_)
2353 {
2354     proto_item *pi;
2355     proto_tree *sub_tree;
2356
2357     if (tvb_get_uint8(tvb, 0) != DSMCC_PROT_DISC)
2358         return 0;
2359
2360     col_set_str(pinfo->cinfo, COL_PROTOCOL, "DSM-CC");
2361     col_clear(pinfo->cinfo, COL_INFO);
2362
2363     pi = proto_tree_add_item(tree, proto_dsmcc, tvb, 0, -1, ENC_NA);
2364     sub_tree = proto_item_add_subtree(pi, ett_dsmcc);
2365
2366     dissect_dsmcc_un(tvb, pinfo, sub_tree, tree);
2367
2368     return tvb_reported_length(tvb);
2369 }
2370
2371
2372 void
2373 proto_register_dsmcc(void)
2374 {
2375     /* NOTE: Please add tables numerically according to 13818-6 so it is
2376      * easier to keep track of what parameters/tables are associated with
2377      * each other.
2378      */
2379     static hf_register_info hf[] = {
2380
2381         /* table 2-1 dsmccMessageHeader - start */
2382         { &hf_dsmcc_protocol_discriminator, {
2383             "Protocol Discriminator", "mpeg_dsmcc.protocol",
2384             FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL
2385         } },
2386
2387         { &hf_dsmcc_type, {
2388             "Type", "mpeg_dsmcc.type",
2389             FT_UINT8, BASE_HEX|BASE_RANGE_STRING,
2390             RVALS(dsmcc_header_type_vals), 0, NULL, HFILL
2391         } },
2392
2393         { &hf_dsmcc_message_id, {
2394             "Message ID", "mpeg_dsmcc.message_id",
2395             FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
2396         } },
2397
2398         { &hf_dsmcc_transaction_id, {
2399             "Transaction ID", "mpeg_dsmcc.transaction_id",
2400             FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL
2401         } },
2402
2403         { &hf_dsmcc_header_reserved, {
2404             "Reserved", "mpeg_dsmcc.header_reserved",
2405             FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL
2406         } },
2407
2408         { &hf_dsmcc_adaptation_length, {
2409             "Adaptation Length", "mpeg_dsmcc.adaptation_length",
2410             FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
2411         } },
2412
2413         { &hf_dsmcc_message_length, {
2414             "Message Length", "mpeg_dsmcc.message_length",
2415             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2416         } },
2417         /* table 2-1 dsmccMessageHeader - end */
2418
2419         /* table 2-3 Transaction ID originator - start */
2420         { &hf_dsmcc_un_sess_flag_transaction_id_originator, {
2421             "Transaction ID Originator", "mpeg_dsmcc.transaction_id_originator",
2422             FT_UINT32, BASE_DEC|BASE_RANGE_STRING,
2423             RVALS(dsmcc_un_sess_transaction_id_originator_vals),
2424             DMSCC_FLAG_TRAN_ORIG, NULL, HFILL
2425         } },
2426
2427         { &hf_dsmcc_un_sess_flag_transaction_id_number, {
2428             "Transaction Number", "mpeg_dsmcc.transaction_id_number",
2429             FT_UINT32, BASE_DEC, NULL, DMSCC_FLAG_TRAN_NUM, NULL, HFILL
2430         } },
2431         /* table 2-3 Transaction ID originator - end */
2432
2433         /* table 2-4 dsmccAdaptationHeader - start */
2434         { &hf_dsmcc_adaptation_type, {
2435             "Adaptation Type", "mpeg_dsmcc.adaptation_header.type",
2436             FT_UINT8, BASE_HEX|BASE_RANGE_STRING,
2437             RVALS(dsmcc_adaptation_header_vals), 0, NULL, HFILL
2438         } },
2439         /* table 2-4 dsmccAdaptationHeader - end */
2440
2441         /* table 2-6 dsmccConditionalAccess - start */
2442         { &hf_dsmcc_adaptation_ca_reserved, {
2443             "Reserved", "mpeg_dsmcc.adaptation_header.ca.reserved",
2444             FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL
2445         } },
2446
2447         { &hf_dsmcc_adaptation_ca_system_id, {
2448             "CA System ID", "mpeg_dsmcc.adaptation_header.ca.system_id",
2449             FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
2450         } },
2451
2452         { &hf_dsmcc_adaptation_ca_length, {
2453             "CA Length", "mpeg_dsmcc.adaptation_header.ca.length",
2454             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2455         } },
2456         /* table 2-6 dsmccConditionalAccess - end */
2457
2458         /* table 2-7 dsmccUserId - start */
2459         { &hf_dsmcc_adaptation_user_id_reserved, {
2460             "Reserved", "mpeg_dsmcc.adaptation_header.uid.reserved",
2461             FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL
2462         } },
2463         /* table 2-7 dsmccUserId - end */
2464
2465         /* other tables in section 4.2 - start */
2466         { &hf_dsmcc_un_sess_response, {
2467             "Response", "mpeg_dsmcc.un_sess.response",
2468             FT_UINT16, BASE_HEX|BASE_RANGE_STRING,
2469             RVALS(dsmcc_un_sess_message_response_codes_vals), 0, NULL, HFILL
2470         } },
2471
2472         { &hf_dsmcc_un_sess_reason, {
2473             "Reason", "mpeg_dsmcc.un_sess.reason",
2474             FT_UINT16, BASE_HEX|BASE_RANGE_STRING,
2475             RVALS(dsmcc_un_sess_message_reason_codes_vals), 0, NULL, HFILL
2476         } },
2477
2478         { &hf_dsmcc_un_sess_reserved, {
2479             "Reserved", "mpeg_dsmcc.un_sess.reserved",
2480             FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
2481         } },
2482         /* other tables in section 4.2 - end */
2483
2484         /* table 4-2 message discriminator - start */
2485         { &hf_dsmcc_un_sess_flag_message_discriminator, {
2486             "Message Discriminator", "mpeg_dsmcc.message_discriminator",
2487             FT_UINT16, BASE_DEC|BASE_RANGE_STRING,
2488             RVALS(dsmcc_un_sess_message_discriminator_vals),
2489             DMSCC_FLAG_MESS_DISCRIMINATOR, NULL, HFILL
2490         } },
2491         /* table 4-2 message discriminator - end */
2492
2493         /* table 4-3 message scenario - start */
2494         { &hf_dsmcc_un_sess_flag_message_scenario, {
2495             "Message Scenario", "mpeg_dsmcc.message_scenario",
2496             FT_UINT16, BASE_DEC|BASE_RANGE_STRING,
2497             RVALS(dsmcc_un_sess_message_scenario_vals),
2498             DMSCC_FLAG_MESS_SCENARIO, NULL, HFILL
2499         } },
2500         /* table 4-3 message scenario - end */
2501
2502         /* table 4-4 message type - start */
2503         { &hf_dsmcc_un_sess_flag_message_type, {
2504             "Message Type", "mpeg_dsmcc.message_type",
2505             FT_UINT16, BASE_DEC|BASE_RANGE_STRING,
2506             RVALS(dsmcc_un_sess_message_type_vals),
2507             DMSCC_FLAG_MESS_TYPE, NULL, HFILL
2508         } },
2509         /* table 4-4 message type - end */
2510
2511         /* table 4-5 U-N Resources - start */
2512         { &hf_dsmcc_un_sess_rsrc_desc_count, {
2513             "Resource Descriptor Count", "mpeg_dsmcc.un_sess.rsrc_desc_count",
2514             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2515         } },
2516         /* table 4-5 U-N Resources - end */
2517
2518         /* table 4-6 U-N user data format - start */
2519         { &hf_dsmcc_un_sess_uu_data_len, {
2520             "User data length", "mpeg_dsmcc.un_sess.uu_data_len",
2521             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2522         } },
2523
2524         { &hf_dsmcc_un_sess_uu_data, {
2525             "User data", "mpeg_dsmcc.un_sess.uu_data",
2526             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2527         } },
2528
2529         { &hf_dsmcc_un_sess_priv_data_len, {
2530             "Private data length", "mpeg_dsmcc.un_sess.priv_data_len",
2531             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2532         } },
2533
2534         { &hf_dsmcc_un_sess_priv_data, {
2535             "Private data", "mpeg_dsmcc.un_sess.priv_data",
2536             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2537         } },
2538         /* table 4-6 U-N user data format - end */
2539
2540         /* 4-10 - Server Session Setup Indication message - start */
2541         { &hf_dsmcc_un_sess_forward_count, {
2542             "Forward Count", "mpeg_dsmcc.un_sess.forward_count",
2543             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2544         } },
2545         /* 4-10 - Server Session Setup Indication message - start */
2546
2547         /* 4-26 - start */
2548         { &hf_dsmcc_un_sess_resource_count, {
2549             "Resource Count", "mpeg_dsmcc.un_sess.resource_count",
2550             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2551         } },
2552
2553         { &hf_dsmcc_un_sess_resource_num, {
2554             "Resource Number", "mpeg_dsmcc.un_sess.resource_num",
2555             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2556         } },
2557         /* 4-26 - end */
2558
2559         /* table 4-35 ServerStatusRequest message, 4-36 ServerStatusConfirm message - start */
2560         { &hf_dsmcc_un_sess_status_type, {
2561             "Status Type", "mpeg_dsmcc.un_sess.status_type",
2562             FT_UINT16, BASE_DEC|BASE_RANGE_STRING,
2563             RVALS(dsmcc_un_sess_status_type_vals), 0, NULL, HFILL
2564         } },
2565
2566         { &hf_dsmcc_un_sess_status_count, {
2567             "Status Count (Bytes)", "mpeg_dsmcc.un_sess.status_count",
2568             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2569         } },
2570
2571         { &hf_dsmcc_un_sess_status_byte, {
2572             "Status Byte", "mpeg_dsmcc.un_sess.status_byte",
2573             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2574         } },
2575         /* table 4-35 ServerStatusRequest message, 4-36 ServerStatusConfirm message - end */
2576
2577         /* table 4-56 - start */
2578         { &hf_dsmcc_un_sess_session_count, {
2579             "Session Count", "mpeg_dsmcc.un_sess.session_count",
2580             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2581         } },
2582         /* table 4-56 - end */
2583
2584         /* table 4-58 Message Fields data types - start */
2585         { &hf_dsmcc_un_sess_session_id_device_id, {
2586             "Device ID", "mpeg_dsmcc.un_sess.session_id_device_id",
2587             FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL
2588         } },
2589
2590         { &hf_dsmcc_un_sess_session_id_session_number, {
2591             "Session Number", "mpeg_dsmcc.un_sess.session_id_session_number",
2592             FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL
2593         } },
2594         /* table 4-58 Message Fields data types - start */
2595
2596         /* table 4-63 U-N common descriptor header - start */
2597         { &hf_dsmcc_un_sess_rsrc_request_id, {
2598             "Request ID", "mpeg_dsmcc.un_sess.rsrc_request_id",
2599             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2600         } },
2601
2602         { &hf_dsmcc_un_sess_rsrc_descriptor_type, {
2603             "Descriptor Type", "mpeg_dsmcc.un_sess.rsrc_descriptor_type",
2604             FT_UINT16, BASE_HEX|BASE_RANGE_STRING,
2605             RVALS(dsmcc_un_sess_rsrc_descriptor_type_vals), 0, NULL, HFILL
2606         } },
2607
2608         { &hf_dsmcc_un_sess_rsrc_number, {
2609             "Resource Num", "mpeg_dsmcc.un_sess.rsrc_number",
2610             FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
2611         } },
2612
2613         { &hf_dsmcc_un_sess_rsrc_association_tag, {
2614             "Association Tag", "mpeg_dsmcc.un_sess.rsrc_association_tag",
2615             FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
2616         } },
2617
2618         { &hf_dsmcc_un_sess_rsrc_flags, {
2619             "Resource Flags", "mpeg_dsmcc.un_sess.rsrc_flags",
2620             FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL
2621         } },
2622
2623         { &hf_dsmcc_un_sess_rsrc_status, {
2624             "Resource Status", "mpeg_dsmcc.un_sess.rsrc_status",
2625             FT_UINT8, BASE_HEX|BASE_RANGE_STRING,
2626             RVALS(dsmcc_un_sess_rsrc_status_vals), 0, NULL, HFILL
2627         } },
2628
2629         { &hf_dsmcc_un_sess_rsrc_desc_data_fields_length, {
2630             "Data Fields Length", "mpeg_dsmcc.un_sess.rsrc_desc_data_fields_length",
2631             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2632         } },
2633
2634         { &hf_dsmcc_un_sess_rsrc_data_field_count, {
2635             "Data Field Count", "mpeg_dsmcc.un_sess.rsrc_data_field_count",
2636             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2637         } },
2638
2639         { &hf_dsmcc_un_sess_rsrc_type_owner_id, {
2640             "Type Owner ID", "mpeg_dsmcc.un_sess.rsrc_type_owner_id",
2641             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2642         } },
2643
2644         { &hf_dsmcc_un_sess_rsrc_type_owner_value, {
2645             "Type Owner Value", "mpeg_dsmcc.un_sess.rsrc_type_owner_value",
2646             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2647         } },
2648         /* table 4-63 U-N common descriptor header - end */
2649
2650         /* table 4-64 U-N resource number assignor - start */
2651         { &hf_dsmcc_un_sess_rsrc_flag_num_assignor, {
2652             "Resource Num Assignor", "mpeg_dsmcc.un_sess.rsrc_flag_num_assignor",
2653             FT_UINT16, BASE_DEC|BASE_RANGE_STRING,
2654             RVALS(dsmcc_un_sess_rsrc_number_assignor_vals),
2655             DMSCC_FLAG_RSRC_NUM_ASSIGNOR, NULL, HFILL
2656         } },
2657
2658         { &hf_dsmcc_un_sess_rsrc_flag_num_value, {
2659             "Resource Num Value", "mpeg_dsmcc.un_sess.rsrc_flag_num_value",
2660             FT_UINT16, BASE_DEC, NULL, DMSCC_FLAG_RSRC_NUM_VALUE, NULL, HFILL
2661         } },
2662         /* table 4-64 U-N resource number assignor - end */
2663
2664         /* table 4-65 U-N resource association tag assignor - start */
2665         { &hf_dsmcc_un_sess_rsrc_flag_association_tag_assignor, {
2666             "Association Tag Assignor", "mpeg_dsmcc.un_sess.rsrc_flag_association_tag_assignor",
2667             FT_UINT16, BASE_DEC|BASE_RANGE_STRING,
2668             RVALS(dsmcc_un_sess_rsrc_association_tag_vals),
2669             DMSCC_FLAG_RSRC_ASSOC_TAG_ASSIGNOR, NULL, HFILL
2670         } },
2671
2672         { &hf_dsmcc_un_sess_rsrc_flag_association_tag_value, {
2673             "Association Tag Value", "mpeg_dsmcc.un_sess.rsrc_flag_association_tag_value",
2674             FT_UINT16, BASE_DEC, NULL, DMSCC_FLAG_RSRC_ASSOC_TAG_VALUE, NULL, HFILL
2675         } },
2676         /* table 4-65 U-N resource association tag assignor - end */
2677
2678         /* table 4-66 U-N resource allocator - start */
2679        { &hf_dsmcc_un_sess_rsrc_flag_allocator, {
2680             "Resource Allocator", "mpeg_dsmcc.un_sess.rsrc_flag_allocator",
2681             FT_UINT8, BASE_DEC|BASE_RANGE_STRING,
2682             RVALS(dsmcc_un_sess_rsrc_allocator_vals),
2683             DMSCC_FLAG_RSRC_ALLOCATOR, NULL, HFILL
2684         } },
2685         /* table 4-66 U-N resource allocator - end */
2686
2687         /* table 4-67 U-N resource attribute - start */
2688        { &hf_dsmcc_un_sess_rsrc_flag_attribute, {
2689             "Resource Attribute", "mpeg_dsmcc.un_sess.rsrc_flag_attribute",
2690             FT_UINT8, BASE_DEC|BASE_RANGE_STRING,
2691             RVALS(dsmcc_un_sess_rsrc_attribute_vals),
2692             DMSCC_FLAG_RSRC_ATTRIBUTE, NULL, HFILL
2693         } },
2694         /* table 4-67 U-N resource attribute - end */
2695
2696         /* table 4-68 U-N resource view - start */
2697        { &hf_dsmcc_un_sess_rsrc_flag_view, {
2698             "Resource View", "mpeg_dsmcc.un_sess.rsrc_flag_view",
2699             FT_UINT8, BASE_DEC|BASE_RANGE_STRING,
2700             RVALS(dsmcc_un_sess_rsrc_view_vals),
2701             DMSCC_FLAG_RSRC_VIEW, NULL, HFILL
2702         } },
2703         /* table 4-68 U-N resource view - end */
2704
2705         /* table 4-71 U-N dsmccResourceDescriptorValue() field format - start */
2706         { &hf_dsmcc_un_sess_rsrc_value_type, {
2707             "Value Type", "mpeg_dsmcc.un_sess.rsrc_value_type",
2708             FT_UINT16, BASE_DEC|BASE_RANGE_STRING,
2709             RVALS(dsmcc_un_sess_rsrc_value_types_vals), 0, NULL, HFILL
2710         } },
2711
2712         { &hf_dsmcc_un_sess_rsrc_value_count, {
2713             "Value Count", "mpeg_dsmcc.un_sess.rsrc_value_count",
2714             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2715         } },
2716
2717         { &hf_dsmcc_un_sess_rsrc_value_data, {
2718             "Value Data", "mpeg_dsmcc.un_sess.rsrc_value_data",
2719             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2720         } },
2721
2722         { &hf_dsmcc_un_sess_rsrc_most_desired, {
2723             "Most Desired", "mpeg_dsmcc.un_sess.rsrc_most_desired",
2724             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2725         } },
2726
2727         { &hf_dsmcc_un_sess_rsrc_least_desired, {
2728             "Least Desired", "mpeg_dsmcc.un_sess.rsrc_least_desired",
2729             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2730         } },
2731         /* table 4-71 U-N dsmccResourceDescriptorValue() field format - end */
2732
2733         /* table 4-74 U-N Continuous Feed Session resource descriptor - start */
2734         { &hf_dsmcc_un_sess_rsrc_cfs_num_count, {
2735             "Resource Num Count", "mpeg_dsmcc.un_sess.rsrc_cfs_num_count",
2736             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2737         } },
2738
2739         { &hf_dsmcc_un_sess_rsrc_cfs_num, {
2740             "Resource Number", "mpeg_dsmcc.un_sess.rsrc_cfs_num",
2741             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2742         } },
2743         /* table 4-74 U-N Continuous Feed Session resource descriptor - end  */
2744
2745         /* table 4-75 U-N ATM Connection resource descriptor - start */
2746         { &hf_dsmcc_un_sess_rsrc_atm_vpi, {
2747             "ATM VPI", "mpeg_dsmcc.un_sess.rsrc_atm_vpi",
2748             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2749         } },
2750
2751         { &hf_dsmcc_un_sess_rsrc_atm_vci, {
2752             "ATM VCI", "mpeg_dsmcc.un_sess.rsrc_atm_vci",
2753             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2754         } },
2755         /* table 4-75 U-N ATM Connection resource descriptor - end  */
2756
2757         /* table 4-76 MPEG Program - start */
2758         { &hf_dsmcc_un_sess_rsrc_mpeg_ca_pid, {
2759             "MPEG CA PID", "mpeg_dsmcc.un_sess.rsrc_mpeg_ca_pid",
2760             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2761         } },
2762
2763         { &hf_dsmcc_un_sess_rsrc_mpeg_elem_stream_count, {
2764             "Elementary Stream Count", "mpeg_dsmcc.un_sess.rsrc_mpeg_elem_stream_count",
2765             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2766         } },
2767
2768         { &hf_dsmcc_un_sess_rsrc_reserved, {
2769             "Reserved", "mpeg_dsmcc.un_sess.rsrc_reserved",
2770             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2771         } },
2772         /* table 4-76 MPEG Program - end */
2773
2774          /* table 4-77 Physical Channel - start */
2775         { &hf_dsmcc_un_sess_rsrc_phys_chan_direction, {
2776             "Channel Direction", "mpeg_dsmcc.un_sess.rsrc_phys_chan_direction",
2777             FT_UINT16, BASE_HEX|BASE_RANGE_STRING,
2778             RVALS(dsmcc_un_sess_rsrc_phys_chan_direction_vals), 0, NULL, HFILL
2779         } },
2780         /* table 4-77 Physical Channel - end */
2781
2782         /* table 4-84 IP  - start */
2783         { &hf_dsmcc_un_sess_rsrc_src_ip_addr, {
2784             "Source IP Address", "mpeg_dsmcc.un_sess.rsrc_src_ip_addr",
2785             FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL
2786         } },
2787
2788         { &hf_dsmcc_un_sess_rsrc_src_ip_port, {
2789             "Source IP Port", "mpeg_dsmcc.un_sess.rsrc_src_ip_port",
2790             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2791         } },
2792
2793         { &hf_dsmcc_un_sess_rsrc_dst_ip_addr, {
2794             "Destination IP Address", "mpeg_dsmcc.un_sess.rsrc_dst_ip_addr",
2795             FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL
2796         } },
2797
2798         { &hf_dsmcc_un_sess_rsrc_dst_ip_port, {
2799             "Destination IP Port", "mpeg_dsmcc.un_sess.rsrc_dst_ip_port",
2800             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2801         } },
2802
2803         { &hf_dsmcc_un_sess_rsrc_ip_protocol, {
2804             "IP Protocol", "mpeg_dsmcc.un_sess.rsrc_ip_protocol",
2805             FT_UINT16, BASE_HEX|BASE_RANGE_STRING,
2806             RVALS(dsmcc_un_sess_rsrc_ip_protocol_types_vals), 0, NULL, HFILL
2807         } },
2808         /* table 4-84 IP  - end */
2809
2810         /* table 4-86 PSTN Setup - start */
2811         { &hf_dsmcc_un_sess_rsrc_pstn_calling_id, {
2812             "Calling ID", "mpeg_dsmcc.un_sess.rsrc_pstn_calling_id",
2813             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2814         } },
2815
2816         { &hf_dsmcc_un_sess_rsrc_pstn_called_id, {
2817             "Called ID", "mpeg_dsmcc.un_sess.rsrc_pstn_called_id",
2818             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2819         } },
2820         /* table 4-86 PSTN Setup - end */
2821
2822         /* table 4-89 Q.922 Connection - start */
2823         { &hf_dsmcc_un_sess_rsrc_dlci_count, {
2824             "DL CI Count", "mpeg_dsmcc.un_sess.rsrc_dlci_count",
2825             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2826         } },
2827
2828         { &hf_dsmcc_un_sess_rsrc_dlci, {
2829             "DL CI", "mpeg_dsmcc.un_sess.rsrc_dlci",
2830             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2831         } },
2832
2833         { &hf_dsmcc_un_sess_rsrc_dl_association_tag, {
2834             "Association Tag", "mpeg_dsmcc.un_sess.rsrc_dl_association_tag",
2835             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2836         } },
2837         /* table 4-89 Q.922 Connection - end */
2838
2839         /* table 4-90 Shared Resource - start */
2840         { &hf_dsmcc_un_sess_rsrc_shared_resource_num, {
2841             "Shared Resource Num", "mpeg_dsmcc.un_sess.rsrc_shared_resource_num",
2842             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2843         } },
2844         /* table 4-90 Shared Resource - end */
2845
2846         /* table 4-91 Shared Request ID - start */
2847         { &hf_dsmcc_un_sess_rsrc_shared_resource_request_id, {
2848             "Shared Request ID", "mpeg_dsmcc.un_sess.rsrc_shared_resource_request_id",
2849             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2850         } },
2851         /* table 4-91 Shared Request ID - end */
2852
2853         /* table 4-92 Headend List - start */
2854         { &hf_dsmcc_un_sess_rsrc_headend_count, {
2855             "Headend Count", "mpeg_dsmcc.un_sess.rsrc_headend_count",
2856             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2857         } },
2858
2859         { &hf_dsmcc_un_sess_rsrc_headend_code, {
2860             "Headend Code", "mpeg_dsmcc.un_sess.rsrc_headend_code",
2861             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2862         } },
2863         /* table 4-92 Headend List - end */
2864
2865         /* table 4-94 Continuous Feed - start */
2866         { &hf_dsmcc_un_sess_rsrc_sdb_id, {
2867             "SDB ID", "mpeg_dsmcc.un_sess.rsrc_sdb_id",
2868             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2869         } },
2870
2871         { &hf_dsmcc_un_sess_rsrc_sdb_program_count, {
2872             "Program Count", "mpeg_dsmcc.un_sess.rsrc_sdb_program_count",
2873             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2874         } },
2875
2876         { &hf_dsmcc_un_sess_rsrc_sdb_association_tag, {
2877             "Association Tag", "mpeg_dsmcc.un_sess.rsrc_sdb_association_tag",
2878             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2879         } },
2880
2881         { &hf_dsmcc_un_sess_rsrc_sdb_broadcast_program_id, {
2882             "Broadcast Program ID", "mpeg_dsmcc.un_sess.rsrc_sdb_broadcast_program_id",
2883             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2884         } },
2885         /* table 4-94 Continuous Feed - end */
2886
2887         /* table 4-95 SDB Associations - start */
2888         { &hf_dsmcc_un_sess_rsrc_sdb_control_association_tag, {
2889             "Control Association Tag", "mpeg_dsmcc.un_sess.rsrc_sdb_control_association_tag",
2890             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2891         } },
2892
2893         { &hf_dsmcc_un_sess_rsrc_sdb_program_association_tag, {
2894             "Program Association Tag", "mpeg_dsmcc.un_sess.rsrc_sdb_program_association_tag",
2895             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2896         } },
2897         /* table 4-95 SDB Associations - end */
2898
2899         /* table 4-96 SDB Entitlement - start */
2900         { &hf_dsmcc_un_sess_rsrc_sdb_exclude_count, {
2901             "Exclude Count", "mpeg_dsmcc.un_sess.rsrc_sdb_exclude_count",
2902             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2903         } },
2904
2905         { &hf_dsmcc_un_sess_rsrc_sdb_include_count, {
2906             "Include Count", "mpeg_dsmcc.un_sess.rsrc_sdb_include_count",
2907             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2908         } },
2909         /* table 4-96 SDB Entitlement - end */
2910
2911         /* User defined 0xf001-0xf007 - start */
2912         { &hf_dsmcc_un_sess_rsrc_trans_system, {
2913             "Transmission System", "mpeg_dsmcc.un_sess.rsrc_trans_system",
2914             FT_UINT8, BASE_HEX|BASE_RANGE_STRING,
2915             RVALS(dsmcc_un_sess_rsrc_transmission_system_vals), 0, NULL, HFILL
2916         } },
2917
2918         { &hf_dsmcc_un_sess_rsrc_inner_coding, {
2919             "Inner Coding", "mpeg_dsmcc.un_sess.rsrc_inner_coding",
2920             FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL
2921         } },
2922
2923         { &hf_dsmcc_un_sess_rsrc_split_bitstream, {
2924             "Split Bitstream", "mpeg_dsmcc.un_sess.rsrc_split_bitstream",
2925             FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL
2926         } },
2927
2928         { &hf_dsmcc_un_sess_rsrc_mod_format, {
2929             "Modulation Format", "mpeg_dsmcc.un_sess.rsrc_mod_format",
2930             FT_UINT8, BASE_HEX|BASE_RANGE_STRING,
2931             RVALS(dsmcc_un_sess_rsrc_modulation_format_vals), 0, NULL, HFILL
2932         } },
2933
2934         { &hf_dsmcc_un_sess_rsrc_symbol_rate, {
2935             "Symbol Rate", "mpeg_dsmcc.un_sess.rsrc_symbol_rate",
2936             FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL
2937         } },
2938
2939         { &hf_dsmcc_un_sess_rsrc_interleave_depth, {
2940             "Interleave Depth", "mpeg_dsmcc.un_sess.rsrc_interleave_depth",
2941             FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL
2942         } },
2943
2944         { &hf_dsmcc_un_sess_rsrc_modulation_mode, {
2945             "Modulation Mode", "mpeg_dsmcc.un_sess.rsrc_modulation_mode",
2946             FT_UINT8, BASE_HEX|BASE_RANGE_STRING,
2947             RVALS(dsmcc_un_sess_rsrc_mod_mode_vals), 0, NULL, HFILL
2948         } },
2949
2950         { &hf_dsmcc_un_sess_rsrc_fec, {
2951             "Forward Error Correction", "mpeg_dsmcc.un_sess.rsrc_fec",
2952             FT_UINT8, BASE_HEX|BASE_RANGE_STRING,
2953             RVALS(dsmcc_un_sess_rsrc_fec_vals), 0, NULL, HFILL
2954         } },
2955
2956         { &hf_dsmcc_un_sess_rsrc_headend_flag, {
2957             "Headend Flag", "mpeg_dsmcc.un_sess.rsrc_headend_flag",
2958             FT_UINT16, BASE_DEC|BASE_RANGE_STRING,
2959             RVALS(dsmcc_un_sess_rsrc_headend_flag_vals), 0, NULL, HFILL
2960         } },
2961
2962         { &hf_dsmcc_un_sess_rsrc_headend_tsid, {
2963             "Headend TSID", "mpeg_dsmcc.un_sess.rsrc_headend_tsid",
2964             FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL
2965         } },
2966
2967         { &hf_dsmcc_un_sess_rsrc_server_ca_copyprotect, {
2968             "Copy Protect", "mpeg_dsmcc.un_sess.rsrc_server_ca_copyprotect",
2969             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2970         } },
2971
2972         { &hf_dsmcc_un_sess_rsrc_server_ca_usercount, {
2973             "User Count", "mpeg_dsmcc.un_sess.rsrc_server_ca_usercount",
2974             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2975         } },
2976
2977         { &hf_dsmcc_un_sess_rsrc_client_ca_info_length, {
2978             "CA Info Length", "mpeg_dsmcc.un_sess.rsrc_client_ca_info_length",
2979             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2980         } },
2981
2982         { &hf_dsmcc_un_sess_rsrc_client_ca_info_data, {
2983             "CA Info Data", "mpeg_dsmcc.un_sess.rsrc_client_ca_info_data",
2984             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
2985         } },
2986
2987         { &hf_dsmcc_un_sess_rsrc_service_group, {
2988             "Service Group", "mpeg_dsmcc.un_sess.rsrc_service_group",
2989             FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL
2990         } },
2991         /* User defined 0xf001-0xf007 - end */
2992
2993         /* table 6-1 compatibilityDescriptor - start */
2994         { &hf_compat_desc_length, {
2995             "Compatibility Descriptor Length", "mpeg_dsmcc.dii.compat_desc_len",
2996             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
2997         } },
2998
2999         { &hf_compat_desc_count, {
3000             "Descriptor Length", "mpeg_dsmcc.dii.compat_desc_count",
3001             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
3002         } },
3003
3004         { &hf_desc_type, {
3005             "Descriptor Type", "mpeg_dsmcc.dii.compat.type",
3006             FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
3007         } },
3008
3009         { &hf_desc_length, {
3010             "Descriptor Length", "mpeg_dsmcc.dii.compat.length",
3011             FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
3012         } },
3013
3014         { &hf_desc_spec_type, {
3015             "Specifier Type", "mpeg_dsmcc.dii.compat.spec_type",
3016             FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
3017         } },
3018
3019         { &hf_desc_spec_data, {
3020             "Specifier Data", "mpeg_dsmcc.dii.compat.spec_data",
3021             FT_UINT24, BASE_HEX, NULL, 0, NULL, HFILL
3022         } },
3023
3024         { &hf_desc_model, {
3025             "Model", "mpeg_dsmcc.dii.compat.model",
3026             FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
3027         } },
3028
3029         { &hf_desc_version, {
3030             "Version", "mpeg_dsmcc.dii.compat.version",
3031             FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
3032         } },
3033
3034         { &hf_desc_sub_desc_count, {
3035             "Version", "mpeg_dsmcc.dii.compat.sub_count",
3036             FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
3037         } },
3038
3039         { &hf_desc_sub_desc_type, {
3040             "Type", "mpeg_dsmcc.dii.compat.sub_type",
3041             FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
3042         } },
3043
3044         { &hf_desc_sub_desc_len, {
3045             "Length", "mpeg_dsmcc.dii.compat.sub_len",
3046             FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
3047         } },
3048         /* table 6-1 compatibilityDescriptor - end */
3049
3050         /* table 7-3 dsmccDownloadDataHeader - start */
3051         { &hf_dsmcc_dd_download_id, {
3052             "Download ID", "mpeg_dsmcc.download_id",
3053             FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL
3054         } },
3055
3056         { &hf_dsmcc_dd_message_id, {
3057             "Message ID", "mpeg_dsmcc.message_id",
3058             FT_UINT16, BASE_HEX,
3059             VALS(dsmcc_dd_message_id_vals), 0, NULL, HFILL
3060         } },
3061         /* table 7-3 dsmccDownloadDataHeader - end */
3062
3063         /* table 7-6 downloadInfoIndication - start */
3064         { &hf_dsmcc_dii_download_id, {
3065             "Download ID", "mpeg_dsmcc.dii.download_id",
3066             FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL
3067         } },
3068
3069         { &hf_dsmcc_dii_block_size, {
3070             "Block Size", "mpeg_dsmcc.dii.block_size",
3071             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
3072         } },
3073
3074         { &hf_dsmcc_dii_window_size, {
3075             "Window Size", "mpeg_dsmcc.dii.window_size",
3076             FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
3077         } },
3078
3079         { &hf_dsmcc_dii_ack_period, {
3080             "ACK Period", "mpeg_dsmcc.dii.ack_period",
3081             FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
3082         } },
3083
3084         { &hf_dsmcc_dii_t_c_download_window, {
3085             "Carousel Download Window", "mpeg_dsmcc.dii.carousel_download_window",
3086             FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL
3087         } },
3088
3089         { &hf_dsmcc_dii_t_c_download_scenario, {
3090             "Carousel Download Scenario", "mpeg_dsmcc.dii.carousel_download_scenario",
3091             FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL
3092         } },
3093
3094         { &hf_dsmcc_dii_number_of_modules, {
3095             "Number of Modules", "mpeg_dsmcc.dii.module_count",
3096             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
3097         } },
3098
3099         { &hf_dsmcc_dii_module_id, {
3100             "Module ID", "mpeg_dsmcc.dii.module_id",
3101             FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
3102         } },
3103
3104         { &hf_dsmcc_dii_module_size, {
3105             "Module Size", "mpeg_dsmcc.dii.module_size",
3106             FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL
3107         } },
3108
3109         { &hf_dsmcc_dii_module_version, {
3110             "Module Version", "mpeg_dsmcc.dii.module_version",
3111             FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL
3112         } },
3113
3114         { &hf_dsmcc_dii_module_info_length, {
3115             "Module Info Length", "mpeg_dsmcc.dii.module_info_length",
3116             FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
3117         } },
3118
3119         { &hf_dsmcc_dii_private_data_length, {
3120             "Private Data Length", "mpeg_dsmcc.dii.private_data_length",
3121             FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL
3122         } },
3123         /* table 7-6 downloadInfoIndication - end */
3124
3125         /* table 7-7 dsmccDownloadDataBlock - start */
3126         { &hf_dsmcc_ddb_module_id, {
3127             "Module ID", "mpeg_dsmcc.ddb.module_id",
3128             FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
3129         } },
3130
3131         { &hf_dsmcc_ddb_version, {
3132             "Version", "mpeg_dsmcc.ddb.version",
3133             FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL
3134         } },
3135
3136         { &hf_dsmcc_ddb_reserved, {
3137             "Reserved", "mpeg_dsmcc.ddb.reserved",
3138             FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL
3139         } },
3140
3141         { &hf_dsmcc_ddb_block_number, {
3142             "Block Number", "mpeg_dsmcc.ddb.block_num",
3143             FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
3144         } },
3145         /* table 7-7 dsmccDownloadDataBlock - end */
3146
3147         /* table 9-2 - start */
3148         { &hf_dsmcc_table_id, {
3149             "Table ID", "mpeg_sect.table_id",
3150             FT_UINT8, BASE_HEX, VALS(dsmcc_payload_name_vals), 0, NULL, HFILL
3151         } },
3152
3153         { &hf_dsmcc_section_syntax_indicator, {
3154             "Session Syntax Indicator", "mpeg_sect.ssi",
3155             FT_UINT16, BASE_DEC, NULL, DSMCC_SSI_MASK, NULL, HFILL
3156         } },
3157
3158         { &hf_dsmcc_private_indicator, {
3159             "Private Indicator", "mpeg_dsmcc.private_indicator",
3160             FT_UINT16, BASE_DEC, NULL, DSMCC_PRIVATE_MASK, NULL, HFILL
3161         } },
3162
3163         { &hf_dsmcc_reserved, {
3164             "Reserved", "mpeg_sect.reserved",
3165             FT_UINT16, BASE_HEX, NULL, DSMCC_RESERVED_MASK, NULL, HFILL
3166         } },
3167
3168         { &hf_dsmcc_section_length, {
3169             "Length", "mpeg_sect.section_length",
3170             FT_UINT16, BASE_DEC, NULL, DSMCC_LENGTH_MASK, NULL, HFILL
3171         } },
3172
3173         { &hf_dsmcc_table_id_extension, {
3174             "Table ID Extension", "mpeg_dsmcc.table_id_extension",
3175             FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL
3176         } },
3177
3178         { &hf_dsmcc_reserved2, {
3179             "Reserved", "mpeg_dsmcc.reserved2",
3180             FT_UINT8, BASE_HEX, NULL, DSMCC_RESERVED2_MASK, NULL, HFILL
3181         } },
3182
3183         { &hf_dsmcc_version_number, {
3184             "Version Number", "mpeg_dsmcc.version_number",
3185             FT_UINT8, BASE_DEC, NULL, DSMCC_VERSION_NUMBER_MASK, NULL, HFILL
3186         } },
3187
3188         { &hf_dsmcc_current_next_indicator, {
3189             "Current Next Indicator", "mpeg_dsmcc.current_next_indicator",
3190             FT_UINT8, BASE_DEC, NULL, DSMCC_CURRENT_NEXT_INDICATOR_MASK, NULL, HFILL
3191         } },
3192
3193         { &hf_dsmcc_section_number, {
3194             "Section Number", "mpeg_dsmcc.section_number",
3195             FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
3196         } },
3197
3198         { &hf_dsmcc_last_section_number, {
3199             "Last Section Number", "mpeg_dsmcc.last_section_number",
3200             FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL
3201         } },
3202
3203         { &hf_dsmcc_crc, {
3204             "CRC 32", "mpeg_sect.crc",
3205             FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL
3206         } },
3207
3208         { &hf_dsmcc_checksum, {
3209             "Checksum", "mpeg_dsmcc.checksum",
3210             FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL
3211         } },
3212         /* table 9-2 - end */
3213
3214         /* table J.3 NSAP - start */
3215         { &hf_dsmcc_un_sess_nsap_afi, {
3216             "Authority and Format Identifier (AFI)", "mpeg_dsmcc.un_sess.dsmcc_nsap_afi",
3217             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
3218         } },
3219
3220         { &hf_dsmcc_un_sess_nsap_idi, {
3221             "Initial Domain Identifier (IDI)", "mpeg_dsmcc.un_sess.dsmcc_nsap_idi",
3222             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
3223         } },
3224
3225         { &hf_dsmcc_un_sess_nsap_ho_dsp, {
3226             "High Order DSP (HO-DSP)", "mpeg_dsmcc.un_sess.dsmcc_nsap_ho_dsp",
3227             FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL
3228         } },
3229
3230         { &hf_dsmcc_un_sess_nsap_esi, {
3231             "End System Identifier (ESI)", "mpeg_dsmcc.un_sess.dsmcc_nsap_esi",
3232             FT_ETHER, BASE_NONE, NULL, 0, NULL, HFILL
3233         } },
3234
3235         { &hf_dsmcc_un_sess_nsap_sel, {
3236             "Selector (SEL)", "mpeg_dsmcc.un_sess.dsmcc_nsap_sel",
3237             FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
3238         } },
3239         /* table J.3 NSAP - end */
3240
3241         { &hf_etv_module_abs_path, {
3242             "Module Absolute Path", "etv.dsmcc.dii.module_abs_path",
3243             FT_UINT_STRING, BASE_NONE, NULL, 0, NULL, HFILL
3244         } },
3245
3246         { &hf_etv_dii_authority, {
3247             "Authority", "etv.dsmcc.dii.authority",
3248             FT_UINT_STRING, BASE_NONE, NULL, 0, NULL, HFILL
3249         } }
3250         /* table J.3 NSAP - end */
3251     };
3252
3253     static int *ett[] = {
3254         &ett_dsmcc,
3255         &ett_dsmcc_payload,
3256         &ett_dsmcc_adaptation_header,
3257         &ett_dsmcc_header,
3258         &ett_dsmcc_message_id,
3259         &ett_dsmcc_transaction_id,
3260         &ett_dsmcc_heading,
3261         &ett_dsmcc_rsrc_number,
3262         &ett_dsmcc_rsrc_association_tag,
3263         &ett_dsmcc_rsrc_flags,
3264         &ett_dsmcc_compat,
3265         &ett_dsmcc_compat_sub_desc,
3266         &ett_dsmcc_dii_module
3267     };
3268     static ei_register_info ei[] = {
3269         { &ei_dsmcc_invalid_value, { "mpeg_dsmcc.invalid_value", PI_PROTOCOL, PI_WARN,
3270                     "Invalid value", EXPFILL }},
3271         { &ei_dsmcc_crc_invalid, { "mpeg_sect.crc.invalid", PI_CHECKSUM, PI_WARN,
3272                     "Invalid CRC", EXPFILL }},
3273     };
3274
3275     module_t *dsmcc_module;
3276     expert_module_t* expert_dsmcc;
3277
3278     proto_dsmcc = proto_register_protocol("MPEG DSM-CC", "MPEG DSM-CC", "mpeg_dsmcc");
3279
3280     proto_register_field_array(proto_dsmcc, hf, array_length(hf));
3281     proto_register_subtree_array(ett, array_length(ett));
3282     expert_dsmcc = expert_register_protocol(proto_dsmcc);
3283     expert_register_field_array(expert_dsmcc, ei, array_length(ei));
3284     dsmcc_ts_handle = register_dissector("mp2t-dsmcc", dissect_dsmcc_ts, proto_dsmcc);
3285     dsmcc_tcp_handle = register_dissector("mp2t-dsmcc-tcp", dissect_dsmcc_tcp, proto_dsmcc);
3286     dsmcc_udp_handle = register_dissector("mp2t-dsmcc-udp", dissect_dsmcc_udp, proto_dsmcc);
3287
3288     dsmcc_module = prefs_register_protocol(proto_dsmcc, NULL);
3289
3290     prefs_register_bool_preference(dsmcc_module, "verify_crc",
3291         "Verify the section CRC or checksum",
3292         "Whether the section dissector should verify the CRC or checksum",
3293         &dsmcc_sect_check_crc);
3294 }
3295
3296
3297 void
3298 proto_reg_handoff_dsmcc(void)
3299 {
3300     dissector_add_uint("mpeg_sect.tid", DSMCC_TID_LLCSNAP, dsmcc_ts_handle);
3301     dissector_add_uint("mpeg_sect.tid", DSMCC_TID_UN_MSG, dsmcc_ts_handle);
3302     dissector_add_uint("mpeg_sect.tid", DSMCC_TID_DD_MSG, dsmcc_ts_handle);
3303     dissector_add_uint("mpeg_sect.tid", DSMCC_TID_DESC_LIST, dsmcc_ts_handle);
3304     /* TID 0x3E is used for both DSMCC_TID_PRIVATE and DVB_DATA_MPE_TID.
3305      * MPE (ETSI EN 301 192) is conformant to the DSSMCC section format
3306      * for private data, and is by far the most common implementation,
3307      * so default register it to the table entry. If someone wants this
3308      * generic DSM-CC dissector to handle it, they can use Decode As.
3309      *
3310      * dissector_add_uint("mpeg_sect.tid", DSMCC_TID_PRIVATE, dsmcc_ts_handle);
3311      */
3312
3313     dissector_add_uint_with_preference("tcp.port", DSMCC_TCP_PORT, dsmcc_tcp_handle);
3314     dissector_add_uint_with_preference("udp.port", DSMCC_UDP_PORT, dsmcc_udp_handle);
3315 }
3316
3317 /*
3318  * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
3319  *
3320  * Local variables:
3321  * c-basic-offset: 4
3322  * tab-width: 8
3323  * indent-tabs-mode: nil
3324  * End:
3325  *
3326  * vi: set shiftwidth=4 tabstop=8 expandtab:
3327  * :indentSize=4:tabSize=8:noTabs=true:
3328  */