epan/dissectors/packet-cdt.c

   1 /* Do not modify this file.                                                   */
   2 /* It is created automatically by the ASN.1 to Wireshark dissector compiler   */
   3 /* .\packet-cdt.c                                                             */
   4 /* ../../tools/asn2wrs.py -b -e -p cdt -c cdt.cnf -s packet-cdt-template cdt.asn */
   5
   6 /* Input file: packet-cdt-template.c */
   7
   8 #line 1 "packet-cdt-template.c"
   9 /* packet-cdt.c
  10  *
  11  * Routines for Compressed Data Type packet dissection.
  12  *
  13  * Copyright 2005, Stig Bj>rlykke <stig@bjorlykke.org>, Thales Norway AS
  14  *
  15  * $Id$
  16  *
  17  * Wireshark - Network traffic analyzer
  18  * By Gerald Combs <gerald@wireshark.org>
  19  * Copyright 1998 Gerald Combs
  20  *
  21  * This program is free software; you can redistribute it and/or
  22  * modify it under the terms of the GNU General Public License
  23  * as published by the Free Software Foundation; either version 2
  24  * of the License, or (at your option) any later version.
  25  *
  26  * This program is distributed in the hope that it will be useful,
  27  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  28  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  29  * GNU General Public License for more details.
  30  *
  31  * You should have received a copy of the GNU General Public License
  32  * along with this program; if not, write to the Free Software
  33  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  34  *
  35  * Ref: STANAG 4406 Annex E
  36  */
  37
  38 #ifdef HAVE_CONFIG_H
  39 #include "config.h"
  40 #endif
  41
  42 #include <epan/packet.h>
  43 #include <epan/oid_resolv.h>
  44
  45 #include "packet-ber.h"
  46 #include "packet-x411.h"
  47
  48 #include "packet-cdt.h"
  49
  50 #define PNAME  "Compressed Data Type"
  51 #define PSNAME "CDT"
  52 #define PFNAME "cdt"
  53
  54 static proto_tree *top_tree = NULL;
  55 static proto_item *cdt_item = NULL;
  56
  57 /* Initialize the protocol and registered fields */
  58 int proto_cdt = -1;
  59
  60 /*--- Included file: packet-cdt-hf.c ---*/
  61 #line 1 "packet-cdt-hf.c"
  62 static int hf_cdt_CompressedData_PDU = -1;        /* CompressedData */
  63 static int hf_cdt_compressionAlgorithm = -1;      /* CompressionAlgorithmIdentifier */
  64 static int hf_cdt_compressedContentInfo = -1;     /* CompressedContentInfo */
  65 static int hf_cdt_algorithmID_ShortForm = -1;     /* AlgorithmID_ShortForm */
  66 static int hf_cdt_algorithmID_OID = -1;           /* OBJECT_IDENTIFIER */
  67 static int hf_cdt_contentType = -1;               /* T_contentType */
  68 static int hf_cdt_contentType_ShortForm = -1;     /* ContentType_ShortForm */
  69 static int hf_cdt_contentType_OID = -1;           /* OBJECT_IDENTIFIER */
  70 static int hf_cdt_compressedContent = -1;         /* CompressedContent */
  71
  72 /*--- End of included file: packet-cdt-hf.c ---*/
  73 #line 52 "packet-cdt-template.c"
  74
  75 /* Initialize the subtree pointers */
  76
  77 /*--- Included file: packet-cdt-ett.c ---*/
  78 #line 1 "packet-cdt-ett.c"
  79 static gint ett_cdt_CompressedData = -1;
  80 static gint ett_cdt_CompressionAlgorithmIdentifier = -1;
  81 static gint ett_cdt_CompressedContentInfo = -1;
  82 static gint ett_cdt_T_contentType = -1;
  83
  84 /*--- End of included file: packet-cdt-ett.c ---*/
  85 #line 55 "packet-cdt-template.c"
  86
  87
  88 /*--- Included file: packet-cdt-fn.c ---*/
  89 #line 1 "packet-cdt-fn.c"
  90 /*--- Fields for imported types ---*/
  91
  92
  93
  94 static const value_string cdt_AlgorithmID_ShortForm_vals[] = {
  95   {   0, "zlibCompress" },
  96   { 0, NULL }
  97 };
  98
  99
 100 static int
 101 dissect_cdt_AlgorithmID_ShortForm(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 102 #line 16 "cdt.cnf"
 103   guint32 value;
 104
 105     offset = dissect_ber_integer(implicit_tag, pinfo, tree, tvb, offset, hf_index,
 106                                   &value);
 107
 108   proto_item_append_text (cdt_item, ", %s",
 109                           val_to_str (value, cdt_AlgorithmID_ShortForm_vals,
 110                                       "unknown"));
 111
 112   if (check_col (pinfo->cinfo, COL_INFO))
 113     col_append_fstr (pinfo->cinfo, COL_INFO, "%s ",
 114                      val_to_str (value, cdt_AlgorithmID_ShortForm_vals,
 115                                  "unknown"));
 116
 117
 118
 119   return offset;
 120 }
 121 static int dissect_algorithmID_ShortForm_impl(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 122   return dissect_cdt_AlgorithmID_ShortForm(TRUE, tvb, offset, pinfo, tree, hf_cdt_algorithmID_ShortForm);
 123 }
 124
 125
 126
 127 static int
 128 dissect_cdt_OBJECT_IDENTIFIER(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 129 #line 48 "cdt.cnf"
 130   const char *obj_id = NULL;
 131
 132     offset = dissect_ber_object_identifier_str(implicit_tag, pinfo, tree, tvb, offset, hf_index, &obj_id);
 133
 134   if (obj_id) {
 135     const char *name = get_oid_str_name (obj_id);
 136
 137     if (!name) {
 138       name = obj_id;
 139     }
 140
 141     proto_item_append_text (cdt_item, ", %s", name);
 142
 143     if (check_col (pinfo->cinfo, COL_INFO))
 144       col_append_fstr (pinfo->cinfo, COL_INFO, "%s ", name);
 145   }
 146
 147
 148
 149   return offset;
 150 }
 151 static int dissect_algorithmID_OID_impl(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 152   return dissect_cdt_OBJECT_IDENTIFIER(TRUE, tvb, offset, pinfo, tree, hf_cdt_algorithmID_OID);
 153 }
 154 static int dissect_contentType_OID_impl(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 155   return dissect_cdt_OBJECT_IDENTIFIER(TRUE, tvb, offset, pinfo, tree, hf_cdt_contentType_OID);
 156 }
 157
 158
 159 static const value_string cdt_CompressionAlgorithmIdentifier_vals[] = {
 160   {   0, "algorithmID-ShortForm" },
 161   {   1, "algorithmID-OID" },
 162   { 0, NULL }
 163 };
 164
 165 static const ber_choice_t CompressionAlgorithmIdentifier_choice[] = {
 166   {   0, BER_CLASS_CON, 0, BER_FLAGS_IMPLTAG, dissect_algorithmID_ShortForm_impl },
 167   {   1, BER_CLASS_CON, 1, BER_FLAGS_IMPLTAG, dissect_algorithmID_OID_impl },
 168   { 0, 0, 0, 0, NULL }
 169 };
 170
 171 static int
 172 dissect_cdt_CompressionAlgorithmIdentifier(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 173   offset = dissect_ber_choice(pinfo, tree, tvb, offset,
 174                                  CompressionAlgorithmIdentifier_choice, hf_index, ett_cdt_CompressionAlgorithmIdentifier,
 175                                  NULL);
 176
 177   return offset;
 178 }
 179 static int dissect_compressionAlgorithm(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 180   return dissect_cdt_CompressionAlgorithmIdentifier(FALSE, tvb, offset, pinfo, tree, hf_cdt_compressionAlgorithm);
 181 }
 182
 183
 184 static const value_string cdt_ContentType_ShortForm_vals[] = {
 185   {   0, "unidentified" },
 186   {   1, "external" },
 187   {   2, "p1" },
 188   {   3, "p3" },
 189   {   4, "p7" },
 190   { 0, NULL }
 191 };
 192
 193
 194 static int
 195 dissect_cdt_ContentType_ShortForm(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 196 #line 32 "cdt.cnf"
 197   guint32 value;
 198
 199     offset = dissect_ber_integer(implicit_tag, pinfo, tree, tvb, offset, hf_index,
 200                                   &value);
 201
 202   proto_item_append_text (cdt_item, ", %s",
 203                           val_to_str (value, cdt_ContentType_ShortForm_vals,
 204                                       "unknown"));
 205
 206   if (check_col (pinfo->cinfo, COL_INFO))
 207     col_append_fstr (pinfo->cinfo, COL_INFO, "%s ",
 208                      val_to_str (value, cdt_ContentType_ShortForm_vals,
 209                                  "unknown"));
 210
 211
 212
 213   return offset;
 214 }
 215 static int dissect_contentType_ShortForm_impl(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 216   return dissect_cdt_ContentType_ShortForm(TRUE, tvb, offset, pinfo, tree, hf_cdt_contentType_ShortForm);
 217 }
 218
 219
 220 static const value_string cdt_T_contentType_vals[] = {
 221   {   0, "contentType-ShortForm" },
 222   {   1, "contentType-OID" },
 223   { 0, NULL }
 224 };
 225
 226 static const ber_choice_t T_contentType_choice[] = {
 227   {   0, BER_CLASS_CON, 0, BER_FLAGS_IMPLTAG, dissect_contentType_ShortForm_impl },
 228   {   1, BER_CLASS_CON, 1, BER_FLAGS_IMPLTAG, dissect_contentType_OID_impl },
 229   { 0, 0, 0, 0, NULL }
 230 };
 231
 232 static int
 233 dissect_cdt_T_contentType(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 234   offset = dissect_ber_choice(pinfo, tree, tvb, offset,
 235                                  T_contentType_choice, hf_index, ett_cdt_T_contentType,
 236                                  NULL);
 237
 238   return offset;
 239 }
 240 static int dissect_contentType(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 241   return dissect_cdt_T_contentType(FALSE, tvb, offset, pinfo, tree, hf_cdt_contentType);
 242 }
 243
 244
 245
 246 static int
 247 dissect_cdt_CompressedContent(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 248 #line 68 "cdt.cnf"
 249   tvbuff_t   *next_tvb = NULL, *compr_tvb = NULL;
 250   int         save_offset = offset;
 251
 252     offset = dissect_ber_octet_string(implicit_tag, pinfo, tree, tvb, offset, hf_index,
 253                                        &compr_tvb);
 254
 255   if (compr_tvb == NULL) {
 256     proto_tree_add_text (top_tree, tvb, save_offset, -1,
 257                          "[Error: Unable to get compressed content]");
 258     if (check_col (pinfo->cinfo, COL_INFO))
 259       col_append_fstr (pinfo->cinfo, COL_INFO,
 260                        "[Error: Unable to get compressed content]");
 261     return offset;
 262   }
 263
 264   next_tvb = tvb_uncompress (compr_tvb, 0, tvb_length (compr_tvb));
 265
 266   if (next_tvb == NULL) {
 267     proto_tree_add_text (top_tree, tvb, save_offset, -1,
 268                          "[Error: Unable to uncompress content]");
 269     if (check_col (pinfo->cinfo, COL_INFO))
 270       col_append_fstr (pinfo->cinfo, COL_INFO,
 271                        "[Error: Unable to uncompress content]");
 272     return offset;
 273   }
 274
 275   tvb_set_child_real_data_tvbuff (tvb, next_tvb);
 276   add_new_data_source (pinfo, next_tvb, "Uncompressed Content");
 277
 278   dissect_x411_mts_apdu (next_tvb, pinfo, top_tree);
 279
 280
 281
 282   return offset;
 283 }
 284 static int dissect_compressedContent(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 285   return dissect_cdt_CompressedContent(FALSE, tvb, offset, pinfo, tree, hf_cdt_compressedContent);
 286 }
 287
 288
 289 static const ber_sequence_t CompressedContentInfo_sequence[] = {
 290   { BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_contentType },
 291   { BER_CLASS_CON, 0, 0, dissect_compressedContent },
 292   { 0, 0, 0, NULL }
 293 };
 294
 295 static int
 296 dissect_cdt_CompressedContentInfo(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 297   offset = dissect_ber_sequence(implicit_tag, pinfo, tree, tvb, offset,
 298                                    CompressedContentInfo_sequence, hf_index, ett_cdt_CompressedContentInfo);
 299
 300   return offset;
 301 }
 302 static int dissect_compressedContentInfo(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset) {
 303   return dissect_cdt_CompressedContentInfo(FALSE, tvb, offset, pinfo, tree, hf_cdt_compressedContentInfo);
 304 }
 305
 306
 307 static const ber_sequence_t CompressedData_sequence[] = {
 308   { BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_compressionAlgorithm },
 309   { BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_compressedContentInfo },
 310   { 0, 0, 0, NULL }
 311 };
 312
 313 int
 314 dissect_cdt_CompressedData(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, int hf_index _U_) {
 315   offset = dissect_ber_sequence(implicit_tag, pinfo, tree, tvb, offset,
 316                                    CompressedData_sequence, hf_index, ett_cdt_CompressedData);
 317
 318   return offset;
 319 }
 320
 321 /*--- PDUs ---*/
 322
 323 static void dissect_CompressedData_PDU(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) {
 324   dissect_cdt_CompressedData(FALSE, tvb, 0, pinfo, tree, hf_cdt_CompressedData_PDU);
 325 }
 326
 327
 328 /*--- End of included file: packet-cdt-fn.c ---*/
 329 #line 57 "packet-cdt-template.c"
 330
 331
 332 /*--- proto_register_cdt -------------------------------------------*/
 333
 334 /*
 335 ** Dissect Compressed Data Type
 336 */
 337 void dissect_cdt (tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree)
 338 {
 339   proto_tree *tree = NULL;
 340
 341   /* save parent_tree so subdissectors can create new top nodes */
 342   top_tree = parent_tree;
 343
 344   if (parent_tree) {
 345     cdt_item = proto_tree_add_item (parent_tree, proto_cdt, tvb, 0, -1, FALSE);
 346     tree = proto_item_add_subtree (cdt_item, ett_cdt_CompressedData);
 347   }
 348
 349   if (check_col (pinfo->cinfo, COL_PROTOCOL))
 350     col_set_str (pinfo->cinfo, COL_PROTOCOL, "CDT");
 351   if (check_col (pinfo->cinfo, COL_INFO))
 352     col_clear (pinfo->cinfo, COL_INFO);
 353
 354   dissect_CompressedData_PDU (tvb, pinfo, tree);
 355 }
 356
 357 void proto_register_cdt (void) {
 358
 359   /* List of fields */
 360   static hf_register_info hf[] = {
 361
 362 /*--- Included file: packet-cdt-hfarr.c ---*/
 363 #line 1 "packet-cdt-hfarr.c"
 364     { &hf_cdt_CompressedData_PDU,
 365       { "CompressedData", "cdt.CompressedData",
 366         FT_NONE, BASE_NONE, NULL, 0,
 367         "cdt.CompressedData", HFILL }},
 368     { &hf_cdt_compressionAlgorithm,
 369       { "compressionAlgorithm", "cdt.compressionAlgorithm",
 370         FT_UINT32, BASE_DEC, VALS(cdt_CompressionAlgorithmIdentifier_vals), 0,
 371         "cdt.CompressionAlgorithmIdentifier", HFILL }},
 372     { &hf_cdt_compressedContentInfo,
 373       { "compressedContentInfo", "cdt.compressedContentInfo",
 374         FT_NONE, BASE_NONE, NULL, 0,
 375         "cdt.CompressedContentInfo", HFILL }},
 376     { &hf_cdt_algorithmID_ShortForm,
 377       { "algorithmID-ShortForm", "cdt.algorithmID_ShortForm",
 378         FT_INT32, BASE_DEC, VALS(cdt_AlgorithmID_ShortForm_vals), 0,
 379         "cdt.AlgorithmID_ShortForm", HFILL }},
 380     { &hf_cdt_algorithmID_OID,
 381       { "algorithmID-OID", "cdt.algorithmID_OID",
 382         FT_OID, BASE_NONE, NULL, 0,
 383         "cdt.OBJECT_IDENTIFIER", HFILL }},
 384     { &hf_cdt_contentType,
 385       { "contentType", "cdt.contentType",
 386         FT_UINT32, BASE_DEC, VALS(cdt_T_contentType_vals), 0,
 387         "cdt.T_contentType", HFILL }},
 388     { &hf_cdt_contentType_ShortForm,
 389       { "contentType-ShortForm", "cdt.contentType_ShortForm",
 390         FT_INT32, BASE_DEC, VALS(cdt_ContentType_ShortForm_vals), 0,
 391         "cdt.ContentType_ShortForm", HFILL }},
 392     { &hf_cdt_contentType_OID,
 393       { "contentType-OID", "cdt.contentType_OID",
 394         FT_OID, BASE_NONE, NULL, 0,
 395         "cdt.OBJECT_IDENTIFIER", HFILL }},
 396     { &hf_cdt_compressedContent,
 397       { "compressedContent", "cdt.compressedContent",
 398         FT_BYTES, BASE_HEX, NULL, 0,
 399         "cdt.CompressedContent", HFILL }},
 400
 401 /*--- End of included file: packet-cdt-hfarr.c ---*/
 402 #line 89 "packet-cdt-template.c"
 403   };
 404
 405   /* List of subtrees */
 406   static gint *ett[] = {
 407
 408 /*--- Included file: packet-cdt-ettarr.c ---*/
 409 #line 1 "packet-cdt-ettarr.c"
 410     &ett_cdt_CompressedData,
 411     &ett_cdt_CompressionAlgorithmIdentifier,
 412     &ett_cdt_CompressedContentInfo,
 413     &ett_cdt_T_contentType,
 414
 415 /*--- End of included file: packet-cdt-ettarr.c ---*/
 416 #line 94 "packet-cdt-template.c"
 417   };
 418
 419   /* Register protocol */
 420   proto_cdt = proto_register_protocol (PNAME, PSNAME, PFNAME);
 421
 422   /* Register fields and subtrees */
 423   proto_register_field_array (proto_cdt, hf, array_length(hf));
 424   proto_register_subtree_array (ett, array_length(ett));
 425
 426 }
 427
 428
 429 /*--- proto_reg_handoff_cdt ---------------------------------------*/
 430 void proto_reg_handoff_cdt (void) {
 431
 432 /*--- Included file: packet-cdt-dis-tab.c ---*/
 433 #line 1 "packet-cdt-dis-tab.c"
 434   register_ber_oid_dissector("1.3.26.0.4406.0.4.2", dissect_CompressedData_PDU, proto_cdt, "cdt");
 435
 436
 437 /*--- End of included file: packet-cdt-dis-tab.c ---*/
 438 #line 109 "packet-cdt-template.c"
 439 }