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 Bjørlykke <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 #include <epan/expert.h>
  45
  46 #include "packet-ber.h"
  47 #include "packet-x411.h"
  48
  49 #include "packet-cdt.h"
  50
  51 #define PNAME  "Compressed Data Type"
  52 #define PSNAME "CDT"
  53 #define PFNAME "cdt"
  54
  55 static proto_tree *top_tree = NULL;
  56 static proto_item *cdt_item = NULL;
  57
  58 /* Initialize the protocol and registered fields */
  59 int proto_cdt = -1;
  60
  61 /*--- Included file: packet-cdt-hf.c ---*/
  62 #line 1 "packet-cdt-hf.c"
  63 static int hf_cdt_CompressedData_PDU = -1;        /* CompressedData */
  64 static int hf_cdt_compressionAlgorithm = -1;      /* CompressionAlgorithmIdentifier */
  65 static int hf_cdt_compressedContentInfo = -1;     /* CompressedContentInfo */
  66 static int hf_cdt_algorithmID_ShortForm = -1;     /* AlgorithmID_ShortForm */
  67 static int hf_cdt_algorithmID_OID = -1;           /* OBJECT_IDENTIFIER */
  68 static int hf_cdt_contentType = -1;               /* T_contentType */
  69 static int hf_cdt_contentType_ShortForm = -1;     /* ContentType_ShortForm */
  70 static int hf_cdt_contentType_OID = -1;           /* OBJECT_IDENTIFIER */
  71 static int hf_cdt_compressedContent = -1;         /* CompressedContent */
  72
  73 /*--- End of included file: packet-cdt-hf.c ---*/
  74 #line 53 "packet-cdt-template.c"
  75
  76 /* Initialize the subtree pointers */
  77
  78 /*--- Included file: packet-cdt-ett.c ---*/
  79 #line 1 "packet-cdt-ett.c"
  80 static gint ett_cdt_CompressedData = -1;
  81 static gint ett_cdt_CompressionAlgorithmIdentifier = -1;
  82 static gint ett_cdt_CompressedContentInfo = -1;
  83 static gint ett_cdt_T_contentType = -1;
  84
  85 /*--- End of included file: packet-cdt-ett.c ---*/
  86 #line 56 "packet-cdt-template.c"
  87
  88
  89 /*--- Included file: packet-cdt-fn.c ---*/
  90 #line 1 "packet-cdt-fn.c"
  91 /*--- Fields for imported types ---*/
  92
  93
  94
  95 static const value_string cdt_AlgorithmID_ShortForm_vals[] = {
  96   {   0, "zlibCompress" },
  97   { 0, NULL }
  98 };
  99
 100
 101 static int
 102 dissect_cdt_AlgorithmID_ShortForm(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int hf_index _U_) {
 103 #line 16 "cdt.cnf"
 104   guint32 value;
 105
 106     offset = dissect_ber_integer(implicit_tag, pinfo, tree, tvb, offset, hf_index,
 107                                   &value);
 108
 109   proto_item_append_text (cdt_item, ", %s",
 110                           val_to_str (value, cdt_AlgorithmID_ShortForm_vals,
 111                                       "unknown"));
 112
 113   if (check_col (pinfo->cinfo, COL_INFO))
 114     col_append_fstr (pinfo->cinfo, COL_INFO, "%s ",
 115                      val_to_str (value, cdt_AlgorithmID_ShortForm_vals,
 116                                  "unknown"));
 117
 118
 119
 120   return offset;
 121 }
 122 static int dissect_algorithmID_ShortForm_impl(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset _U_) {
 123   return dissect_cdt_AlgorithmID_ShortForm(TRUE, tvb, offset, pinfo, tree, hf_cdt_algorithmID_ShortForm);
 124 }
 125
 126
 127
 128 static int
 129 dissect_cdt_OBJECT_IDENTIFIER(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int hf_index _U_) {
 130 #line 48 "cdt.cnf"
 131   const char *obj_id = NULL;
 132
 133     offset = dissect_ber_object_identifier_str(implicit_tag, pinfo, tree, tvb, offset, hf_index, &obj_id);
 134
 135   if (obj_id) {
 136     const char *name = get_oid_str_name (obj_id);
 137
 138     if (!name) {
 139       name = obj_id;
 140     }
 141
 142     proto_item_append_text (cdt_item, ", %s", name);
 143
 144     if (check_col (pinfo->cinfo, COL_INFO))
 145       col_append_fstr (pinfo->cinfo, COL_INFO, "%s ", name);
 146   }
 147
 148
 149
 150   return offset;
 151 }
 152 static int dissect_algorithmID_OID_impl(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset _U_) {
 153   return dissect_cdt_OBJECT_IDENTIFIER(TRUE, tvb, offset, pinfo, tree, hf_cdt_algorithmID_OID);
 154 }
 155 static int dissect_contentType_OID_impl(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset _U_) {
 156   return dissect_cdt_OBJECT_IDENTIFIER(TRUE, tvb, offset, pinfo, tree, hf_cdt_contentType_OID);
 157 }
 158
 159
 160 static const value_string cdt_CompressionAlgorithmIdentifier_vals[] = {
 161   {   0, "algorithmID-ShortForm" },
 162   {   1, "algorithmID-OID" },
 163   { 0, NULL }
 164 };
 165
 166 static const ber_choice_t CompressionAlgorithmIdentifier_choice[] = {
 167   {   0, BER_CLASS_CON, 0, BER_FLAGS_IMPLTAG, dissect_algorithmID_ShortForm_impl },
 168   {   1, BER_CLASS_CON, 1, BER_FLAGS_IMPLTAG, dissect_algorithmID_OID_impl },
 169   { 0, 0, 0, 0, NULL }
 170 };
 171
 172 static int
 173 dissect_cdt_CompressionAlgorithmIdentifier(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int hf_index _U_) {
 174   offset = dissect_ber_choice(pinfo, tree, tvb, offset,
 175                                  CompressionAlgorithmIdentifier_choice, hf_index, ett_cdt_CompressionAlgorithmIdentifier,
 176                                  NULL);
 177
 178   return offset;
 179 }
 180 static int dissect_compressionAlgorithm(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset _U_) {
 181   return dissect_cdt_CompressionAlgorithmIdentifier(FALSE, tvb, offset, pinfo, tree, hf_cdt_compressionAlgorithm);
 182 }
 183
 184
 185 static const value_string cdt_ContentType_ShortForm_vals[] = {
 186   {   0, "unidentified" },
 187   {   1, "external" },
 188   {   2, "p1" },
 189   {   3, "p3" },
 190   {   4, "p7" },
 191   { 0, NULL }
 192 };
 193
 194
 195 static int
 196 dissect_cdt_ContentType_ShortForm(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int hf_index _U_) {
 197 #line 32 "cdt.cnf"
 198   guint32 value;
 199
 200     offset = dissect_ber_integer(implicit_tag, pinfo, tree, tvb, offset, hf_index,
 201                                   &value);
 202
 203   proto_item_append_text (cdt_item, ", %s",
 204                           val_to_str (value, cdt_ContentType_ShortForm_vals,
 205                                       "unknown"));
 206
 207   if (check_col (pinfo->cinfo, COL_INFO))
 208     col_append_fstr (pinfo->cinfo, COL_INFO, "%s ",
 209                      val_to_str (value, cdt_ContentType_ShortForm_vals,
 210                                  "unknown"));
 211
 212
 213
 214   return offset;
 215 }
 216 static int dissect_contentType_ShortForm_impl(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset _U_) {
 217   return dissect_cdt_ContentType_ShortForm(TRUE, tvb, offset, pinfo, tree, hf_cdt_contentType_ShortForm);
 218 }
 219
 220
 221 static const value_string cdt_T_contentType_vals[] = {
 222   {   0, "contentType-ShortForm" },
 223   {   1, "contentType-OID" },
 224   { 0, NULL }
 225 };
 226
 227 static const ber_choice_t T_contentType_choice[] = {
 228   {   0, BER_CLASS_CON, 0, BER_FLAGS_IMPLTAG, dissect_contentType_ShortForm_impl },
 229   {   1, BER_CLASS_CON, 1, BER_FLAGS_IMPLTAG, dissect_contentType_OID_impl },
 230   { 0, 0, 0, 0, NULL }
 231 };
 232
 233 static int
 234 dissect_cdt_T_contentType(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int hf_index _U_) {
 235   offset = dissect_ber_choice(pinfo, tree, tvb, offset,
 236                                  T_contentType_choice, hf_index, ett_cdt_T_contentType,
 237                                  NULL);
 238
 239   return offset;
 240 }
 241 static int dissect_contentType(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset _U_) {
 242   return dissect_cdt_T_contentType(FALSE, tvb, offset, pinfo, tree, hf_cdt_contentType);
 243 }
 244
 245
 246
 247 static int
 248 dissect_cdt_CompressedContent(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int hf_index _U_) {
 249 #line 68 "cdt.cnf"
 250   tvbuff_t   *next_tvb = NULL, *compr_tvb = NULL;
 251   proto_item *tf = NULL;
 252   int         save_offset = offset;
 253
 254     offset = dissect_ber_octet_string(implicit_tag, pinfo, tree, tvb, offset, hf_index,
 255                                        &compr_tvb);
 256
 257   if (compr_tvb == NULL) {
 258     tf = proto_tree_add_text (top_tree, tvb, save_offset, -1,
 259                               "[Error: Unable to get compressed content]");
 260     expert_add_info_format (pinfo, tf, PI_UNDECODED, PI_ERROR,
 261                             "Unable to get compressed content");
 262     if (check_col (pinfo->cinfo, COL_INFO))
 263       col_append_fstr (pinfo->cinfo, COL_INFO,
 264                        "[Error: Unable to get compressed content]");
 265     return offset;
 266   }
 267
 268   next_tvb = tvb_uncompress (compr_tvb, 0, tvb_length (compr_tvb));
 269
 270   if (next_tvb == NULL) {
 271     tf = proto_tree_add_text (top_tree, tvb, save_offset, -1,
 272                               "[Error: Unable to uncompress content]");
 273     expert_add_info_format (pinfo, tf, PI_UNDECODED, PI_ERROR,
 274                             "Unable to uncompress content");
 275     if (check_col (pinfo->cinfo, COL_INFO))
 276       col_append_fstr (pinfo->cinfo, COL_INFO,
 277                        "[Error: Unable to uncompress content]");
 278     return offset;
 279   }
 280
 281   tvb_set_child_real_data_tvbuff (tvb, next_tvb);
 282   add_new_data_source (pinfo, next_tvb, "Uncompressed Content");
 283
 284   dissect_x411_mts_apdu (next_tvb, pinfo, top_tree);
 285
 286
 287
 288   return offset;
 289 }
 290 static int dissect_compressedContent(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset _U_) {
 291   return dissect_cdt_CompressedContent(FALSE, tvb, offset, pinfo, tree, hf_cdt_compressedContent);
 292 }
 293
 294
 295 static const ber_sequence_t CompressedContentInfo_sequence[] = {
 296   { BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_contentType },
 297   { BER_CLASS_CON, 0, 0, dissect_compressedContent },
 298   { 0, 0, 0, NULL }
 299 };
 300
 301 static int
 302 dissect_cdt_CompressedContentInfo(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int hf_index _U_) {
 303   offset = dissect_ber_sequence(implicit_tag, pinfo, tree, tvb, offset,
 304                                    CompressedContentInfo_sequence, hf_index, ett_cdt_CompressedContentInfo);
 305
 306   return offset;
 307 }
 308 static int dissect_compressedContentInfo(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset _U_) {
 309   return dissect_cdt_CompressedContentInfo(FALSE, tvb, offset, pinfo, tree, hf_cdt_compressedContentInfo);
 310 }
 311
 312
 313 static const ber_sequence_t CompressedData_sequence[] = {
 314   { BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_compressionAlgorithm },
 315   { BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_compressedContentInfo },
 316   { 0, 0, 0, NULL }
 317 };
 318
 319 int
 320 dissect_cdt_CompressedData(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int hf_index _U_) {
 321   offset = dissect_ber_sequence(implicit_tag, pinfo, tree, tvb, offset,
 322                                    CompressedData_sequence, hf_index, ett_cdt_CompressedData);
 323
 324   return offset;
 325 }
 326
 327 /*--- PDUs ---*/
 328
 329 static void dissect_CompressedData_PDU(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_) {
 330   dissect_cdt_CompressedData(FALSE, tvb, 0, pinfo, tree, hf_cdt_CompressedData_PDU);
 331 }
 332
 333
 334 /*--- End of included file: packet-cdt-fn.c ---*/
 335 #line 58 "packet-cdt-template.c"
 336
 337
 338 /*--- proto_register_cdt -------------------------------------------*/
 339
 340 /*
 341 ** Dissect Compressed Data Type
 342 */
 343 void dissect_cdt (tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree)
 344 {
 345   proto_tree *tree = NULL;
 346
 347   /* save parent_tree so subdissectors can create new top nodes */
 348   top_tree = parent_tree;
 349
 350   if (parent_tree) {
 351     cdt_item = proto_tree_add_item (parent_tree, proto_cdt, tvb, 0, -1, FALSE);
 352     tree = proto_item_add_subtree (cdt_item, ett_cdt_CompressedData);
 353   }
 354
 355   if (check_col (pinfo->cinfo, COL_PROTOCOL))
 356     col_set_str (pinfo->cinfo, COL_PROTOCOL, "CDT");
 357   if (check_col (pinfo->cinfo, COL_INFO))
 358     col_clear (pinfo->cinfo, COL_INFO);
 359
 360   dissect_CompressedData_PDU (tvb, pinfo, tree);
 361 }
 362
 363 void proto_register_cdt (void) {
 364
 365   /* List of fields */
 366   static hf_register_info hf[] = {
 367
 368 /*--- Included file: packet-cdt-hfarr.c ---*/
 369 #line 1 "packet-cdt-hfarr.c"
 370     { &hf_cdt_CompressedData_PDU,
 371       { "CompressedData", "cdt.CompressedData",
 372         FT_NONE, BASE_NONE, NULL, 0,
 373         "cdt.CompressedData", HFILL }},
 374     { &hf_cdt_compressionAlgorithm,
 375       { "compressionAlgorithm", "cdt.compressionAlgorithm",
 376         FT_UINT32, BASE_DEC, VALS(cdt_CompressionAlgorithmIdentifier_vals), 0,
 377         "cdt.CompressionAlgorithmIdentifier", HFILL }},
 378     { &hf_cdt_compressedContentInfo,
 379       { "compressedContentInfo", "cdt.compressedContentInfo",
 380         FT_NONE, BASE_NONE, NULL, 0,
 381         "cdt.CompressedContentInfo", HFILL }},
 382     { &hf_cdt_algorithmID_ShortForm,
 383       { "algorithmID-ShortForm", "cdt.algorithmID_ShortForm",
 384         FT_INT32, BASE_DEC, VALS(cdt_AlgorithmID_ShortForm_vals), 0,
 385         "cdt.AlgorithmID_ShortForm", HFILL }},
 386     { &hf_cdt_algorithmID_OID,
 387       { "algorithmID-OID", "cdt.algorithmID_OID",
 388         FT_OID, BASE_NONE, NULL, 0,
 389         "cdt.OBJECT_IDENTIFIER", HFILL }},
 390     { &hf_cdt_contentType,
 391       { "contentType", "cdt.contentType",
 392         FT_UINT32, BASE_DEC, VALS(cdt_T_contentType_vals), 0,
 393         "cdt.T_contentType", HFILL }},
 394     { &hf_cdt_contentType_ShortForm,
 395       { "contentType-ShortForm", "cdt.contentType_ShortForm",
 396         FT_INT32, BASE_DEC, VALS(cdt_ContentType_ShortForm_vals), 0,
 397         "cdt.ContentType_ShortForm", HFILL }},
 398     { &hf_cdt_contentType_OID,
 399       { "contentType-OID", "cdt.contentType_OID",
 400         FT_OID, BASE_NONE, NULL, 0,
 401         "cdt.OBJECT_IDENTIFIER", HFILL }},
 402     { &hf_cdt_compressedContent,
 403       { "compressedContent", "cdt.compressedContent",
 404         FT_BYTES, BASE_HEX, NULL, 0,
 405         "cdt.CompressedContent", HFILL }},
 406
 407 /*--- End of included file: packet-cdt-hfarr.c ---*/
 408 #line 90 "packet-cdt-template.c"
 409   };
 410
 411   /* List of subtrees */
 412   static gint *ett[] = {
 413
 414 /*--- Included file: packet-cdt-ettarr.c ---*/
 415 #line 1 "packet-cdt-ettarr.c"
 416     &ett_cdt_CompressedData,
 417     &ett_cdt_CompressionAlgorithmIdentifier,
 418     &ett_cdt_CompressedContentInfo,
 419     &ett_cdt_T_contentType,
 420
 421 /*--- End of included file: packet-cdt-ettarr.c ---*/
 422 #line 95 "packet-cdt-template.c"
 423   };
 424
 425   /* Register protocol */
 426   proto_cdt = proto_register_protocol (PNAME, PSNAME, PFNAME);
 427
 428   /* Register fields and subtrees */
 429   proto_register_field_array (proto_cdt, hf, array_length(hf));
 430   proto_register_subtree_array (ett, array_length(ett));
 431
 432 }
 433
 434
 435 /*--- proto_reg_handoff_cdt ---------------------------------------*/
 436 void proto_reg_handoff_cdt (void) {
 437
 438 /*--- Included file: packet-cdt-dis-tab.c ---*/
 439 #line 1 "packet-cdt-dis-tab.c"
 440   register_ber_oid_dissector("1.3.26.0.4406.0.4.2", dissect_CompressedData_PDU, proto_cdt, "cdt");
 441
 442
 443 /*--- End of included file: packet-cdt-dis-tab.c ---*/
 444 #line 110 "packet-cdt-template.c"
 445 }