epan/dissectors/packet-cdt.c

   1 /* Do not modify this file. Changes will be overwritten.                      */
   2 /* Generated automatically by the ASN.1 to Wireshark dissector compiler       */
   3 /* packet-cdt.c                                                               */
   4 /* ../../tools/asn2wrs.py -b -p cdt -c ./cdt.cnf -s ./packet-cdt-template -D . -O ../../epan/dissectors cdt.asn */
   5
   6 /* Input file: packet-cdt-template.c */
   7
   8 #line 1 "../../asn1/cdt/packet-cdt-template.c"
   9 /* packet-cdt.c
  10  *
  11  * Routines for Compressed Data Type packet dissection.
  12  *
  13  * Copyright 2005, Stig Bjorlykke <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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  34  *
  35  * Ref: STANAG 4406 Annex E
  36  */
  37
  38 #include "config.h"
  39
  40 #include <epan/packet.h>
  41 #include <epan/oids.h>
  42 #include <epan/expert.h>
  43 #include <epan/asn1.h>
  44
  45 #include "packet-ber.h"
  46 #include "packet-p1.h"
  47
  48 #include "packet-cdt.h"
  49
  50 #define CDT_UNDEFINED  0
  51 #define CDT_EXTERNAL   1
  52 #define CDT_P1         2
  53 #define CDT_P3         3
  54 #define CDT_P7         4
  55
  56 #define PNAME  "Compressed Data Type"
  57 #define PSNAME "CDT"
  58 #define PFNAME "cdt"
  59
  60 static proto_tree *top_tree = NULL;
  61 static proto_item *cdt_item = NULL;
  62
  63 static guint32 content_type = 0;
  64
  65 /* Initialize the protocol and registered fields */
  66 static int proto_cdt = -1;
  67
  68 /*--- Included file: packet-cdt-hf.c ---*/
  69 #line 1 "../../asn1/cdt/packet-cdt-hf.c"
  70 static int hf_cdt_CompressedData_PDU = -1;        /* CompressedData */
  71 static int hf_cdt_compressionAlgorithm = -1;      /* CompressionAlgorithmIdentifier */
  72 static int hf_cdt_compressedContentInfo = -1;     /* CompressedContentInfo */
  73 static int hf_cdt_algorithmID_ShortForm = -1;     /* AlgorithmID_ShortForm */
  74 static int hf_cdt_algorithmID_OID = -1;           /* OBJECT_IDENTIFIER */
  75 static int hf_cdt_contentType = -1;               /* T_contentType */
  76 static int hf_cdt_contentType_ShortForm = -1;     /* ContentType_ShortForm */
  77 static int hf_cdt_contentType_OID = -1;           /* T_contentType_OID */
  78 static int hf_cdt_compressedContent = -1;         /* CompressedContent */
  79
  80 /*--- End of included file: packet-cdt-hf.c ---*/
  81 #line 60 "../../asn1/cdt/packet-cdt-template.c"
  82
  83 static dissector_handle_t data_handle = NULL;
  84
  85 /* Initialize the subtree pointers */
  86
  87 /*--- Included file: packet-cdt-ett.c ---*/
  88 #line 1 "../../asn1/cdt/packet-cdt-ett.c"
  89 static gint ett_cdt_CompressedData = -1;
  90 static gint ett_cdt_CompressionAlgorithmIdentifier = -1;
  91 static gint ett_cdt_CompressedContentInfo = -1;
  92 static gint ett_cdt_T_contentType = -1;
  93
  94 /*--- End of included file: packet-cdt-ett.c ---*/
  95 #line 65 "../../asn1/cdt/packet-cdt-template.c"
  96
  97 static expert_field ei_cdt_unable_compress_content = EI_INIT;
  98 static expert_field ei_cdt_unable_uncompress_content = EI_INIT;
  99
 100
 101 /*--- Included file: packet-cdt-fn.c ---*/
 102 #line 1 "../../asn1/cdt/packet-cdt-fn.c"
 103
 104 static const value_string cdt_AlgorithmID_ShortForm_vals[] = {
 105   {   0, "zlibCompress" },
 106   { 0, NULL }
 107 };
 108
 109
 110 static int
 111 dissect_cdt_AlgorithmID_ShortForm(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
 112 #line 21 "../../asn1/cdt/cdt.cnf"
 113   guint32 value;
 114
 115     offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
 116                                                 &value);
 117
 118   proto_item_append_text (cdt_item, ", %s",
 119                           val_to_str (value, cdt_AlgorithmID_ShortForm_vals,
 120                                       "unknown"));
 121
 122   col_append_fstr (actx->pinfo->cinfo, COL_INFO, "%s ",
 123                    val_to_str (value, cdt_AlgorithmID_ShortForm_vals,
 124                                "unknown"));
 125
 126
 127
 128   return offset;
 129 }
 130
 131
 132
 133 static int
 134 dissect_cdt_OBJECT_IDENTIFIER(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
 135   offset = dissect_ber_object_identifier(implicit_tag, actx, tree, tvb, offset, hf_index, NULL);
 136
 137   return offset;
 138 }
 139
 140
 141 static const value_string cdt_CompressionAlgorithmIdentifier_vals[] = {
 142   {   0, "algorithmID-ShortForm" },
 143   {   1, "algorithmID-OID" },
 144   { 0, NULL }
 145 };
 146
 147 static const ber_choice_t CompressionAlgorithmIdentifier_choice[] = {
 148   {   0, &hf_cdt_algorithmID_ShortForm, BER_CLASS_CON, 0, BER_FLAGS_IMPLTAG, dissect_cdt_AlgorithmID_ShortForm },
 149   {   1, &hf_cdt_algorithmID_OID , BER_CLASS_CON, 1, BER_FLAGS_IMPLTAG, dissect_cdt_OBJECT_IDENTIFIER },
 150   { 0, NULL, 0, 0, 0, NULL }
 151 };
 152
 153 static int
 154 dissect_cdt_CompressionAlgorithmIdentifier(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
 155   offset = dissect_ber_choice(actx, tree, tvb, offset,
 156                                  CompressionAlgorithmIdentifier_choice, hf_index, ett_cdt_CompressionAlgorithmIdentifier,
 157                                  NULL);
 158
 159   return offset;
 160 }
 161
 162
 163 static const value_string cdt_ContentType_ShortForm_vals[] = {
 164   {   0, "unidentified" },
 165   {   1, "external" },
 166   {   2, "p1" },
 167   {   3, "p3" },
 168   {   4, "p7" },
 169   { 0, NULL }
 170 };
 171
 172
 173 static int
 174 dissect_cdt_ContentType_ShortForm(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
 175 #line 36 "../../asn1/cdt/cdt.cnf"
 176
 177     offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
 178                                                 &content_type);
 179
 180   proto_item_append_text (cdt_item, ", %s",
 181                           val_to_str (content_type, cdt_ContentType_ShortForm_vals,
 182                                       "unknown"));
 183
 184   col_append_fstr (actx->pinfo->cinfo, COL_INFO, "%s ",
 185                    val_to_str (content_type, cdt_ContentType_ShortForm_vals,
 186                                "unknown"));
 187
 188
 189
 190   return offset;
 191 }
 192
 193
 194
 195 static int
 196 dissect_cdt_T_contentType_OID(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
 197 #line 50 "../../asn1/cdt/cdt.cnf"
 198   const char *obj_id = NULL;
 199
 200     offset = dissect_ber_object_identifier_str(implicit_tag, actx, tree, tvb, offset, hf_index, &obj_id);
 201
 202   if (obj_id) {
 203     const char *name = oid_resolved_from_string (obj_id);
 204
 205     if (!name) {
 206       name = obj_id;
 207     }
 208
 209     proto_item_append_text (cdt_item, ", %s", name);
 210
 211     col_append_fstr (actx->pinfo->cinfo, COL_INFO, "%s ", name);
 212   }
 213
 214
 215
 216   return offset;
 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, &hf_cdt_contentType_ShortForm, BER_CLASS_CON, 0, BER_FLAGS_IMPLTAG, dissect_cdt_ContentType_ShortForm },
 228   {   1, &hf_cdt_contentType_OID , BER_CLASS_CON, 1, BER_FLAGS_IMPLTAG, dissect_cdt_T_contentType_OID },
 229   { 0, NULL, 0, 0, 0, NULL }
 230 };
 231
 232 static int
 233 dissect_cdt_T_contentType(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
 234   offset = dissect_ber_choice(actx, tree, tvb, offset,
 235                                  T_contentType_choice, hf_index, ett_cdt_T_contentType,
 236                                  NULL);
 237
 238   return offset;
 239 }
 240
 241
 242
 243 static int
 244 dissect_cdt_CompressedContent(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
 245 #line 69 "../../asn1/cdt/cdt.cnf"
 246   tvbuff_t   *next_tvb = NULL, *compr_tvb = NULL;
 247   int         save_offset = offset;
 248
 249     offset = dissect_ber_octet_string(implicit_tag, actx, tree, tvb, offset, hf_index,
 250                                        &compr_tvb);
 251
 252   if (compr_tvb == NULL) {
 253     proto_tree_add_expert(top_tree, actx->pinfo, &ei_cdt_unable_compress_content,
 254                                                         tvb, save_offset, -1);
 255     col_append_str (actx->pinfo->cinfo, COL_INFO,
 256                     "[Error: Unable to get compressed content]");
 257     return offset;
 258   }
 259
 260   next_tvb = tvb_child_uncompress (tvb, compr_tvb, 0, tvb_length (compr_tvb));
 261
 262   if (next_tvb == NULL) {
 263     proto_tree_add_expert(top_tree, actx->pinfo, &ei_cdt_unable_uncompress_content,
 264                                                         tvb, save_offset, -1);
 265     col_append_str (actx->pinfo->cinfo, COL_INFO,
 266                     "[Error: Unable to uncompress content]");
 267     return offset;
 268   }
 269
 270   add_new_data_source (actx->pinfo, next_tvb, "Uncompressed Content");
 271
 272    switch (content_type) {
 273    case CDT_UNDEFINED:
 274      call_dissector (data_handle, next_tvb, actx->pinfo, top_tree);
 275      break;
 276    case CDT_EXTERNAL:
 277      dissect_unknown_ber (actx->pinfo, next_tvb, 0, top_tree);
 278      break;
 279    case CDT_P1:
 280      dissect_p1_mts_apdu (next_tvb, actx->pinfo, top_tree);
 281      break;
 282    default:
 283      call_dissector (data_handle, next_tvb, actx->pinfo, top_tree);
 284      break;
 285    }
 286
 287
 288
 289   return offset;
 290 }
 291
 292
 293 static const ber_sequence_t CompressedContentInfo_sequence[] = {
 294   { &hf_cdt_contentType     , BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_cdt_T_contentType },
 295   { &hf_cdt_compressedContent, BER_CLASS_CON, 0, 0, dissect_cdt_CompressedContent },
 296   { NULL, 0, 0, 0, NULL }
 297 };
 298
 299 static int
 300 dissect_cdt_CompressedContentInfo(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
 301   offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
 302                                    CompressedContentInfo_sequence, hf_index, ett_cdt_CompressedContentInfo);
 303
 304   return offset;
 305 }
 306
 307
 308 static const ber_sequence_t CompressedData_sequence[] = {
 309   { &hf_cdt_compressionAlgorithm, BER_CLASS_ANY/*choice*/, -1/*choice*/, BER_FLAGS_NOOWNTAG|BER_FLAGS_NOTCHKTAG, dissect_cdt_CompressionAlgorithmIdentifier },
 310   { &hf_cdt_compressedContentInfo, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_cdt_CompressedContentInfo },
 311   { NULL, 0, 0, 0, NULL }
 312 };
 313
 314 int
 315 dissect_cdt_CompressedData(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
 316 #line 13 "../../asn1/cdt/cdt.cnf"
 317   content_type = 0;
 318
 319     offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
 320                                    CompressedData_sequence, hf_index, ett_cdt_CompressedData);
 321
 322
 323
 324
 325   return offset;
 326 }
 327
 328 /*--- PDUs ---*/
 329
 330 static void dissect_CompressedData_PDU(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_) {
 331   asn1_ctx_t asn1_ctx;
 332   asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
 333   dissect_cdt_CompressedData(FALSE, tvb, 0, &asn1_ctx, tree, hf_cdt_CompressedData_PDU);
 334 }
 335
 336
 337 /*--- End of included file: packet-cdt-fn.c ---*/
 338 #line 70 "../../asn1/cdt/packet-cdt-template.c"
 339
 340
 341 /*--- proto_register_cdt -------------------------------------------*/
 342
 343 /*
 344 ** Dissect Compressed Data Type
 345 */
 346 void dissect_cdt (tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree)
 347 {
 348   proto_tree *tree = NULL;
 349
 350   /* save parent_tree so subdissectors can create new top nodes */
 351   top_tree = parent_tree;
 352
 353   if (parent_tree) {
 354     cdt_item = proto_tree_add_item (parent_tree, proto_cdt, tvb, 0, -1, ENC_NA);
 355     tree = proto_item_add_subtree (cdt_item, ett_cdt_CompressedData);
 356   }
 357
 358   col_set_str (pinfo->cinfo, COL_PROTOCOL, "CDT");
 359   col_clear (pinfo->cinfo, COL_INFO);
 360
 361   dissect_CompressedData_PDU (tvb, pinfo, tree);
 362 }
 363
 364 void proto_register_cdt (void) {
 365
 366   /* List of fields */
 367   static hf_register_info hf[] = {
 368
 369 /*--- Included file: packet-cdt-hfarr.c ---*/
 370 #line 1 "../../asn1/cdt/packet-cdt-hfarr.c"
 371     { &hf_cdt_CompressedData_PDU,
 372       { "CompressedData", "cdt.CompressedData_element",
 373         FT_NONE, BASE_NONE, NULL, 0,
 374         NULL, HFILL }},
 375     { &hf_cdt_compressionAlgorithm,
 376       { "compressionAlgorithm", "cdt.compressionAlgorithm",
 377         FT_UINT32, BASE_DEC, VALS(cdt_CompressionAlgorithmIdentifier_vals), 0,
 378         "CompressionAlgorithmIdentifier", HFILL }},
 379     { &hf_cdt_compressedContentInfo,
 380       { "compressedContentInfo", "cdt.compressedContentInfo_element",
 381         FT_NONE, BASE_NONE, NULL, 0,
 382         NULL, HFILL }},
 383     { &hf_cdt_algorithmID_ShortForm,
 384       { "algorithmID-ShortForm", "cdt.algorithmID_ShortForm",
 385         FT_INT32, BASE_DEC, VALS(cdt_AlgorithmID_ShortForm_vals), 0,
 386         NULL, HFILL }},
 387     { &hf_cdt_algorithmID_OID,
 388       { "algorithmID-OID", "cdt.algorithmID_OID",
 389         FT_OID, BASE_NONE, NULL, 0,
 390         "OBJECT_IDENTIFIER", HFILL }},
 391     { &hf_cdt_contentType,
 392       { "contentType", "cdt.contentType",
 393         FT_UINT32, BASE_DEC, VALS(cdt_T_contentType_vals), 0,
 394         NULL, HFILL }},
 395     { &hf_cdt_contentType_ShortForm,
 396       { "contentType-ShortForm", "cdt.contentType_ShortForm",
 397         FT_INT32, BASE_DEC, VALS(cdt_ContentType_ShortForm_vals), 0,
 398         NULL, HFILL }},
 399     { &hf_cdt_contentType_OID,
 400       { "contentType-OID", "cdt.contentType_OID",
 401         FT_OID, BASE_NONE, NULL, 0,
 402         NULL, HFILL }},
 403     { &hf_cdt_compressedContent,
 404       { "compressedContent", "cdt.compressedContent",
 405         FT_BYTES, BASE_NONE, NULL, 0,
 406         NULL, HFILL }},
 407
 408 /*--- End of included file: packet-cdt-hfarr.c ---*/
 409 #line 100 "../../asn1/cdt/packet-cdt-template.c"
 410   };
 411
 412   /* List of subtrees */
 413   static gint *ett[] = {
 414
 415 /*--- Included file: packet-cdt-ettarr.c ---*/
 416 #line 1 "../../asn1/cdt/packet-cdt-ettarr.c"
 417     &ett_cdt_CompressedData,
 418     &ett_cdt_CompressionAlgorithmIdentifier,
 419     &ett_cdt_CompressedContentInfo,
 420     &ett_cdt_T_contentType,
 421
 422 /*--- End of included file: packet-cdt-ettarr.c ---*/
 423 #line 105 "../../asn1/cdt/packet-cdt-template.c"
 424   };
 425
 426   static ei_register_info ei[] = {
 427      { &ei_cdt_unable_compress_content, { "cdt.unable_compress_content", PI_UNDECODED, PI_ERROR, "Unable to get compressed content", EXPFILL }},
 428      { &ei_cdt_unable_uncompress_content, { "cdt.unable_uncompress_content", PI_UNDECODED, PI_ERROR, "Unable to get uncompressed content", EXPFILL }},
 429   };
 430
 431   expert_module_t* expert_cdt;
 432
 433   /* Register protocol */
 434   proto_cdt = proto_register_protocol (PNAME, PSNAME, PFNAME);
 435
 436   /* Register fields and subtrees */
 437   proto_register_field_array (proto_cdt, hf, array_length(hf));
 438   proto_register_subtree_array (ett, array_length(ett));
 439   expert_cdt = expert_register_protocol(proto_cdt);
 440   expert_register_field_array(expert_cdt, ei, array_length(ei));
 441 }
 442
 443
 444 /*--- proto_reg_handoff_cdt ---------------------------------------*/
 445 void proto_reg_handoff_cdt (void) {
 446
 447 /*--- Included file: packet-cdt-dis-tab.c ---*/
 448 #line 1 "../../asn1/cdt/packet-cdt-dis-tab.c"
 449   register_ber_oid_dissector("1.3.26.0.4406.0.4.2", dissect_CompressedData_PDU, proto_cdt, "cdt");
 450
 451
 452 /*--- End of included file: packet-cdt-dis-tab.c ---*/
 453 #line 128 "../../asn1/cdt/packet-cdt-template.c"
 454
 455   data_handle = find_dissector ("data");
 456 }