packet-fcsp.c

   1 /* packet-fc-sp.c
   2  * Routines for Fibre Channel Security Protocol (FC-SP)
   3  * This decoder is for FC-SP version 1.1
   4  * Copyright 2003, Dinesh G Dutt <ddutt@cisco.com>
   5  *
   6  * $Id: packet-fcsp.c,v 1.2 2003/11/07 08:47:53 guy Exp $
   7  *
   8  * Ethereal - Network traffic analyzer
   9  * By Gerald Combs <gerald@ethereal.com>
  10  * Copyright 1998 Gerald Combs
  11  *
  12  * Copied from WHATEVER_FILE_YOU_USED (where "WHATEVER_FILE_YOU_USED"
  13  * is a dissector file; if you just copied this from README.developer,
  14  * don't bother with the "Copied from" - you don't even need to put
  15  * in a "Copied from" if you copied an existing dissector, especially
  16  * if the bulk of the code in the new dissector is your code)
  17  *
  18  * This program is free software; you can redistribute it and/or
  19  * modify it under the terms of the GNU General Public License
  20  * as published by the Free Software Foundation; either version 2
  21  * of the License, or (at your option) any later version.
  22  *
  23  * This program is distributed in the hope that it will be useful,
  24  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  25  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26  * GNU General Public License for more details.
  27  *
  28  * You should have received a copy of the GNU General Public License
  29  * along with this program; if not, write to the Free Software
  30  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  31  */
  32
  33 #ifdef HAVE_CONFIG_H
  34 # include "config.h"
  35 #endif
  36
  37 #include <stdio.h>
  38 #include <stdlib.h>
  39 #include <string.h>
  40
  41 #ifdef HAVE_SYS_TYPES_H
  42 # include <sys/types.h>
  43 #endif
  44
  45 #ifdef HAVE_NETINET_IN_H
  46 # include <netinet/in.h>
  47 #endif
  48
  49 #include <glib.h>
  50
  51 #ifdef NEED_SNPRINTF_H
  52 # include "snprintf.h"
  53 #endif
  54
  55 #include "prefs.h"
  56 #include <epan/packet.h>
  57 #include <epan/conversation.h>
  58 #include "etypes.h"
  59 #include "packet-fc.h"
  60 #include "packet-fcsp.h"
  61
  62 /* Initialize the protocol and registered fields */
  63 static int proto_fcsp              = -1;
  64 static int hf_auth_proto_ver       = -1;
  65 static int hf_auth_msg_code        = -1;
  66 static int hf_auth_flags           = -1;
  67 static int hf_auth_len             = -1;
  68 static int hf_auth_tid             = -1;
  69 static int hf_auth_initiator_wwn   = -1;
  70 static int hf_auth_initiator_name  = -1;
  71 static int hf_auth_usable_proto    = -1;
  72 static int hf_auth_rjt_code        = -1;
  73 static int hf_auth_rjt_codedet     = -1;
  74 static int hf_auth_responder_wwn   = -1;
  75 static int hf_auth_responder_name  = -1;
  76 static int hf_auth_dhchap_groupid  = -1;
  77 static int hf_auth_dhchap_hashid   = -1;
  78 static int hf_auth_dhchap_chal_len = -1;
  79 static int hf_auth_dhchap_val_len  = -1;
  80 static int hf_auth_dhchap_rsp_len  = -1;
  81 static int hf_auth_initiator_name_type = -1;
  82 static int hf_auth_initiator_name_len = -1;
  83 static int hf_auth_responder_name_len = -1;
  84 static int hf_auth_responder_name_type = -1;
  85 static int hf_auth_proto_type = -1;
  86 static int hf_auth_proto_param_len = -1;
  87 static int hf_auth_dhchap_param_tag = -1;
  88 static int hf_auth_dhchap_param_len = -1;
  89 static int hf_auth_dhchap_hash_type = -1;
  90 static int hf_auth_dhchap_group_type = -1;
  91 static int hf_auth_dhchap_dhvalue = -1;
  92 static int hf_auth_dhchap_chal_value = -1;
  93 static int hf_auth_dhchap_rsp_value = -1;
  94
  95 /* Initialize the subtree pointers */
  96 static gint ett_fcsp = -1;
  97
  98 static dissector_handle_t data_handle;
  99
 100 static const value_string fcauth_msgcode_vals[] = {
 101     {FC_AUTH_MSG_AUTH_REJECT, "AUTH_Reject"},
 102     {FC_AUTH_MSG_AUTH_NEGOTIATE, "AUTH_Negotiate"},
 103     {FC_AUTH_MSG_AUTH_DONE, "AUTH_Done"},
 104     {FC_AUTH_DHCHAP_CHALLENGE, "DHCHAP_Challenge"},
 105     {FC_AUTH_DHCHAP_REPLY, "DHCHAP_Reply"},
 106     {FC_AUTH_DHCHAP_SUCCESS, "DHCHAP_Success"},
 107     {FC_AUTH_FCAP_REQUEST, "FCAP_Request"},
 108     {FC_AUTH_FCAP_ACKNOWLEDGE, "FCAP_Acknowledge"},
 109     {FC_AUTH_FCAP_CONFIRM, "FCAP_Confirm"},
 110     {FC_AUTH_FCPAP_INIT, "FCPAP_Init"},
 111     {FC_AUTH_FCPAP_ACCEPT, "FCPAP_Accept"},
 112     {FC_AUTH_FCPAP_COMPLETE, "FCPAP_Complete"},
 113     {0, NULL},
 114 };
 115
 116 static const value_string fcauth_rjtcode_vals[] = {
 117     {0x01, "Authentication Failure"},
 118     {0x02, "Logical Error"},
 119     {0, NULL},
 120 };
 121
 122 static const value_string fcauth_rjtcode_detail_vals[] = {
 123     {0x01, "Authentication Mechanism Not Usable"},
 124     {0x02, "DH Group Not Usable"},
 125     {0x03, "Hash Algorithm Not Usable"},
 126     {0x04, "Authentication Protocol Instance Already Started"},
 127     {0x05, "Authentication Failed "},
 128     {0x06, "Incorrect Payload "},
 129     {0x07, "Incorrect Authentication Protocol Message"},
 130     {0x08, "Protocol Reset"},
 131     {0, NULL},
 132 };
 133
 134 static const value_string fcauth_dhchap_param_vals[] = {
 135     {FC_AUTH_DHCHAP_PARAM_HASHLIST, "HashList"},
 136     {FC_AUTH_DHCHAP_PARAM_DHgIDLIST, "DHgIDList"},
 137     {0, NULL},
 138 };
 139
 140 static const value_string fcauth_dhchap_hash_algo_vals[] = {
 141     {FC_AUTH_DHCHAP_HASH_MD5, "MD5"},
 142     {FC_AUTH_DHCHAP_HASH_SHA1, "SHA-1"},
 143     {0, NULL},
 144 };
 145
 146 static const value_string fcauth_name_type_vals[] = {
 147     {FC_AUTH_NAME_TYPE_WWN, "WWN"},
 148     {0, NULL},
 149 };
 150
 151 static const value_string fcauth_proto_type_vals[] = {
 152     {FC_AUTH_PROTO_TYPE_DHCHAP, "DHCHAP"},
 153     {FC_AUTH_PROTO_TYPE_FCAP, "FCAP"},
 154     {0, NULL},
 155 };
 156
 157 static const value_string fcauth_dhchap_dhgid_vals[] = {
 158     {0, "DH NULL"},
 159     {1, "DH Group 1024"},
 160     {2, "DH Group 1280"},
 161     {3, "DH Group 1536"},
 162     {4, "DH Group 2048"},
 163     {0, NULL},
 164 };
 165
 166 /* this format is required because a script is used to build the C function
 167    that calls all the protocol registration.
 168 */
 169
 170 void dissect_fcsp_dhchap_auth_param (tvbuff_t *tvb, proto_tree *tree,
 171                                      int offset, gint32 total_len)
 172 {
 173     guint16 auth_param_tag;
 174     guint16 param_len = 0, i;
 175
 176     if (tree) {
 177         auth_param_tag = tvb_get_ntohs (tvb, offset);
 178         total_len -= 4;
 179
 180         while (total_len > 0) {
 181             proto_tree_add_item (tree, hf_auth_dhchap_param_tag, tvb, offset,
 182                                  2, 0);
 183             proto_tree_add_item (tree, hf_auth_dhchap_param_len, tvb, offset+2,
 184                                  2, 0);
 185
 186             auth_param_tag = tvb_get_ntohs (tvb, offset);
 187             param_len = tvb_get_ntohs (tvb, offset+2)*4;
 188
 189             switch (auth_param_tag) {
 190             case FC_AUTH_DHCHAP_PARAM_HASHLIST:
 191                 offset += 4;
 192                 total_len -= 4;
 193                 for (i = 0; i < param_len; i += 4) {
 194                     proto_tree_add_item (tree, hf_auth_dhchap_hash_type, tvb,
 195                                          offset, 4, 0);
 196                     offset += 4;
 197                 }
 198                 break;
 199             case FC_AUTH_DHCHAP_PARAM_DHgIDLIST:
 200                 offset += 4;
 201                 total_len -= 4;
 202                 for (i = 0; i < param_len; i += 4) {
 203                     proto_tree_add_item (tree, hf_auth_dhchap_group_type, tvb,
 204                                          offset, 4, 0);
 205                     offset += 4;
 206                 }
 207                 break;
 208             default:
 209                 break;
 210             }
 211
 212             total_len -= param_len;
 213         }
 214     }
 215 }
 216
 217 void dissect_fcsp_dhchap_challenge (tvbuff_t *tvb, proto_tree *tree)
 218 {
 219     int offset = 12;
 220     guint16 name_type;
 221     guint16 param_len, name_len;
 222
 223     if (tree) {
 224         proto_tree_add_item (tree, hf_auth_responder_name_type, tvb, offset,
 225                              2, 0);
 226         name_type = tvb_get_ntohs (tvb, offset);
 227
 228         proto_tree_add_item (tree, hf_auth_responder_name_len, tvb, offset+2,
 229                              2, 0);
 230
 231         name_len = tvb_get_ntohs (tvb, offset+2);
 232
 233         if (name_type == FC_AUTH_NAME_TYPE_WWN) {
 234             proto_tree_add_string (tree, hf_auth_responder_wwn, tvb, offset+4,
 235                                    8,
 236                                    fcwwn_to_str (tvb_get_ptr (tvb, offset+4,
 237                                                               8)));
 238         }
 239         else {
 240             proto_tree_add_bytes (tree, hf_auth_responder_name, tvb, offset+4,
 241                                   name_len, tvb_get_ptr (tvb, offset+4, name_len));
 242         }
 243         offset += (4+name_len);
 244
 245         proto_tree_add_item (tree, hf_auth_dhchap_hash_type, tvb, offset,
 246                              4, 0);
 247         proto_tree_add_item (tree, hf_auth_dhchap_group_type, tvb, offset+4,
 248                              4, 0);
 249         proto_tree_add_item (tree, hf_auth_dhchap_chal_len, tvb, offset+8,
 250                              4, 0);
 251         param_len = tvb_get_ntohl (tvb, offset+8);
 252
 253         proto_tree_add_bytes (tree, hf_auth_dhchap_chal_value, tvb, offset+12,
 254                               param_len,
 255                               tvb_get_ptr (tvb, offset+12, param_len));
 256         offset += (param_len + 12);
 257
 258         proto_tree_add_item (tree, hf_auth_dhchap_val_len, tvb, offset, 4, 0);
 259         param_len = tvb_get_ntohl (tvb, offset);
 260
 261         proto_tree_add_bytes (tree, hf_auth_dhchap_dhvalue, tvb, offset+4,
 262                               param_len,
 263                               tvb_get_ptr (tvb, offset+4, param_len));
 264     }
 265 }
 266
 267
 268 void dissect_fcsp_dhchap_reply (tvbuff_t *tvb, proto_tree *tree)
 269 {
 270     int offset = 12;
 271     guint32 param_len;
 272
 273     if (tree) {
 274         proto_tree_add_item (tree, hf_auth_dhchap_rsp_len, tvb, offset, 4, 0);
 275         param_len = tvb_get_ntohl (tvb, offset);
 276
 277         proto_tree_add_bytes (tree, hf_auth_dhchap_rsp_value, tvb, offset+4,
 278                               param_len,
 279                               tvb_get_ptr (tvb, offset+4, param_len));
 280         offset += (param_len + 4);
 281
 282         proto_tree_add_item (tree, hf_auth_dhchap_val_len, tvb, offset, 4, 0);
 283         param_len = tvb_get_ntohl (tvb, offset);
 284
 285         proto_tree_add_bytes (tree, hf_auth_dhchap_dhvalue, tvb, offset+4,
 286                               param_len,
 287                               tvb_get_ptr (tvb, offset+4, param_len));
 288         offset += (param_len + 4);
 289
 290         proto_tree_add_item (tree, hf_auth_dhchap_chal_len, tvb, offset, 4, 0);
 291         param_len = tvb_get_ntohl (tvb, offset);
 292
 293         proto_tree_add_bytes (tree, hf_auth_dhchap_chal_value, tvb, offset+4,
 294                               param_len,
 295                               tvb_get_ptr (tvb, offset+4, param_len));
 296     }
 297 }
 298
 299 void dissect_fcsp_dhchap_success (tvbuff_t *tvb, proto_tree *tree)
 300 {
 301     int offset = 12;
 302     guint32 param_len;
 303
 304     if (tree) {
 305         proto_tree_add_item (tree, hf_auth_dhchap_rsp_len, tvb, offset, 4, 0);
 306         param_len = tvb_get_ntohl (tvb, offset);
 307
 308         proto_tree_add_bytes (tree, hf_auth_dhchap_rsp_value, tvb, offset+4,
 309                               param_len,
 310                               tvb_get_ptr (tvb, offset+4, param_len));
 311     }
 312 }
 313
 314
 315 void dissect_fcsp_auth_negotiate (tvbuff_t *tvb, proto_tree *tree)
 316 {
 317     int offset = 12;
 318     guint16 name_type, name_len, proto_type, param_len;
 319     guint32 num_protos, i;
 320
 321     if (tree) {
 322         proto_tree_add_item (tree, hf_auth_initiator_name_type, tvb, offset,
 323                              2, 0);
 324         name_type = tvb_get_ntohs (tvb, offset);
 325
 326         proto_tree_add_item (tree, hf_auth_initiator_name_len, tvb, offset+2,
 327                              2, 0);
 328         name_len = tvb_get_ntohs (tvb, offset+2);
 329
 330         if (name_type == FC_AUTH_NAME_TYPE_WWN) {
 331             proto_tree_add_string (tree, hf_auth_initiator_wwn, tvb, offset+4, 8,
 332                                    fcwwn_to_str (tvb_get_ptr (tvb, offset+4, 8)));
 333         }
 334         else {
 335             proto_tree_add_bytes (tree, hf_auth_initiator_name, tvb, offset+4,
 336                                   name_len, tvb_get_ptr (tvb, offset+4,
 337                                                          name_len));
 338         }
 339
 340         offset += (4+name_len);
 341
 342         proto_tree_add_item (tree, hf_auth_usable_proto, tvb, offset, 4, 0);
 343         num_protos = tvb_get_ntohl (tvb, offset);
 344         offset += 4;
 345
 346         for (i = 0; i < num_protos; i++) {
 347             proto_tree_add_item (tree, hf_auth_proto_param_len, tvb, offset, 4, 0);
 348             param_len = tvb_get_ntohl (tvb, offset);
 349             offset += 4;
 350
 351             if (tvb_bytes_exist (tvb, offset, param_len)) {
 352                 proto_type = tvb_get_ntohl (tvb, offset);
 353
 354                 proto_tree_add_item (tree, hf_auth_proto_type, tvb, offset, 4, 0);
 355                 switch (proto_type) {
 356                 case FC_AUTH_PROTO_TYPE_DHCHAP:
 357                     dissect_fcsp_dhchap_auth_param (tvb, tree, offset+4, param_len);
 358                     break;
 359                 case FC_AUTH_PROTO_TYPE_FCAP:
 360                     break;
 361                 default:
 362                     break;
 363                 }
 364             }
 365             offset += param_len;
 366         }
 367     }
 368 }
 369
 370 void dissect_fcsp_auth_done (tvbuff_t *tvb _U_, proto_tree *tree _U_)
 371 {
 372 }
 373
 374 void dissect_fcsp_auth_rjt (tvbuff_t *tvb, proto_tree *tree)
 375 {
 376     int offset = 12;
 377
 378     if (tree) {
 379         proto_tree_add_item (tree, hf_auth_rjt_code, tvb, offset, 1, 0);
 380         proto_tree_add_item (tree, hf_auth_rjt_codedet, tvb, offset+1, 1, 0);
 381     }
 382 }
 383
 384 void dissect_fcsp (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 385 {
 386     proto_item *ti = NULL;
 387     guint8 opcode;
 388     int offset = 0;
 389     proto_tree *fcsp_tree = NULL;
 390
 391     /* Make entry in the Info column on summary display */
 392     opcode = tvb_get_guint8 (tvb, 2);
 393
 394     if (check_col (pinfo->cinfo, COL_INFO)) {
 395         col_set_str (pinfo->cinfo, COL_INFO,
 396                      val_to_str (opcode, fcauth_msgcode_vals, "0x%x"));
 397     }
 398
 399     if (tree) {
 400         ti = proto_tree_add_protocol_format (tree, proto_fcsp, tvb, 0,
 401                                              tvb_length (tvb), "FC-SP");
 402         fcsp_tree = proto_item_add_subtree (ti, ett_fcsp);
 403
 404         proto_tree_add_item (fcsp_tree, hf_auth_flags, tvb, offset+1, 1, 0);
 405         proto_tree_add_item (fcsp_tree, hf_auth_msg_code, tvb, offset+2, 1, 0);
 406         proto_tree_add_item (fcsp_tree, hf_auth_proto_ver, tvb, offset+3, 1,
 407                              0);
 408         proto_tree_add_item (fcsp_tree, hf_auth_len, tvb, offset+4, 4, 0);
 409         proto_tree_add_item (fcsp_tree, hf_auth_tid, tvb, offset+8, 4, 0);
 410
 411         switch (opcode) {
 412         case FC_AUTH_MSG_AUTH_REJECT:
 413             dissect_fcsp_auth_rjt (tvb, tree);
 414             break;
 415         case FC_AUTH_MSG_AUTH_NEGOTIATE:
 416             dissect_fcsp_auth_negotiate (tvb, tree);
 417             break;
 418         case FC_AUTH_MSG_AUTH_DONE:
 419             dissect_fcsp_auth_done (tvb, tree);
 420             break;
 421         case FC_AUTH_DHCHAP_CHALLENGE:
 422             dissect_fcsp_dhchap_challenge (tvb, tree);
 423             break;
 424         case FC_AUTH_DHCHAP_REPLY:
 425             dissect_fcsp_dhchap_reply (tvb, tree);
 426             break;
 427         case FC_AUTH_DHCHAP_SUCCESS:
 428             dissect_fcsp_dhchap_success (tvb, tree);
 429             break;
 430         case FC_AUTH_FCAP_REQUEST:
 431         case FC_AUTH_FCAP_ACKNOWLEDGE:
 432         case FC_AUTH_FCAP_CONFIRM:
 433         case FC_AUTH_FCPAP_INIT:
 434         case FC_AUTH_FCPAP_ACCEPT:
 435         case FC_AUTH_FCPAP_COMPLETE:
 436             proto_tree_add_text (fcsp_tree, tvb, offset+12, tvb_length (tvb),
 437                                  "FCAP Decoding Not Supported");
 438             break;
 439         default:
 440             break;
 441         }
 442     }
 443 }
 444
 445 void
 446 proto_register_fcsp (void)
 447 {
 448     /* Setup list of header fields  See Section 1.6.1 for details*/
 449     static hf_register_info hf[] = {
 450         { &hf_auth_proto_ver,
 451           {"Protocol Version", "fcsp.version", FT_UINT8, BASE_HEX, NULL,
 452            0x0, "", HFILL}},
 453         { &hf_auth_msg_code,
 454           {"Message Code", "fcsp.opcode", FT_UINT8, BASE_HEX,
 455            VALS (fcauth_msgcode_vals), 0x0, "", HFILL}},
 456         { &hf_auth_flags,
 457           {"Flags", "fcsp.flags", FT_UINT8, BASE_HEX, NULL, 0x0, "",
 458            HFILL}},
 459         { &hf_auth_len,
 460           {"Packet Length", "fcsp.len", FT_UINT32, BASE_DEC, NULL, 0x0,
 461            "", HFILL}},
 462         { &hf_auth_tid,
 463           {"Transaction Identifier", "fcsp.tid", FT_UINT32, BASE_HEX, NULL,
 464            0x0, "", HFILL}},
 465         { &hf_auth_initiator_wwn,
 466           {"Initiator Name (WWN)", "fcsp.initwwn", FT_STRING, BASE_HEX, NULL,
 467            0x0, "", HFILL}},
 468         { &hf_auth_initiator_name,
 469           {"Initiator Name (Unknown Type)", "fcsp.initname", FT_BYTES,
 470            BASE_HEX, NULL, 0x0, "", HFILL}},
 471         { &hf_auth_initiator_name_type,
 472           {"Initiator Name Type", "fcsp.initnametype", FT_UINT16, BASE_HEX,
 473            VALS (fcauth_name_type_vals), 0x0, "", HFILL}},
 474         { &hf_auth_initiator_name_len,
 475           {"Initiator Name Length", "fcsp.initnamelen", FT_UINT16, BASE_DEC,
 476            NULL, 0x0, "", HFILL}},
 477         { &hf_auth_usable_proto,
 478           {"Number of Usable Protocols", "fcsp.usableproto", FT_UINT32,
 479            BASE_DEC, NULL, 0x0, "", HFILL}},
 480         { &hf_auth_rjt_code,
 481           {"Reason Code", "fcsp.rjtcode", FT_UINT8, BASE_DEC,
 482            VALS (fcauth_rjtcode_vals), 0x0, "", HFILL}},
 483         { &hf_auth_rjt_codedet,
 484           {"Reason Code Explanation", "fcsp.rjtcodet", FT_UINT8, BASE_DEC,
 485            VALS (fcauth_rjtcode_detail_vals), 0x0, "", HFILL}},
 486         { &hf_auth_responder_wwn,
 487           {"Responder Name (WWN)", "fcsp.rspwwn", FT_STRING, BASE_HEX, NULL,
 488            0x0, "", HFILL}},
 489         { &hf_auth_responder_name,
 490           {"Responder Name (Unknown Type)", "fcsp.rspname", FT_BYTES, BASE_HEX,
 491            NULL, 0x0, "", HFILL}},
 492         { &hf_auth_responder_name_type,
 493           {"Responder Name Type", "fcsp.rspnametype", FT_UINT16, BASE_HEX,
 494            VALS (fcauth_name_type_vals), 0x0, "", HFILL}},
 495         { &hf_auth_responder_name_len,
 496           {"Responder Name Type", "fcsp.rspnamelen", FT_UINT16, BASE_DEC,
 497            NULL, 0x0, "", HFILL}},
 498         { &hf_auth_dhchap_hashid,
 499           {"Hash Identifier", "fcsp.dhchap.hashid", FT_UINT32, BASE_HEX, NULL, 0x0,
 500            "", HFILL}},
 501         { &hf_auth_dhchap_groupid,
 502           {"DH Group Identifier", "fcsp.dhchap.groupid", FT_UINT32, BASE_HEX, NULL,
 503            0x0, "", HFILL}},
 504         { &hf_auth_dhchap_chal_len,
 505           {"Challenge Value Length", "fcsp.dhchap.challen", FT_UINT32, BASE_DEC,
 506            NULL, 0x0, "", HFILL}},
 507         { &hf_auth_dhchap_val_len,
 508           {"DH Value Length", "fcsp.dhchap.vallen", FT_UINT32, BASE_DEC, NULL,
 509            0x0, "", HFILL}},
 510         { &hf_auth_dhchap_rsp_len,
 511           {"Response Value Length", "fcsp.dhchap.rsplen", FT_UINT32, BASE_DEC,
 512            NULL, 0x0, "", HFILL}},
 513         { &hf_auth_proto_type,
 514           {"Authentication Protocol Type", "fcsp.proto", FT_UINT32, BASE_DEC,
 515            VALS (fcauth_proto_type_vals), 0x0, "", HFILL}},
 516         { &hf_auth_proto_param_len,
 517           {"Protocol Parameters Length", "fcsp.protoparamlen", FT_UINT32,
 518            BASE_DEC, NULL, 0x0, "", HFILL}},
 519         { &hf_auth_dhchap_param_tag,
 520           {"Parameter Tag", "fcsp.dhchap.paramtype", FT_UINT16, BASE_HEX,
 521            VALS (fcauth_dhchap_param_vals), 0x0, "", HFILL}},
 522         { &hf_auth_dhchap_param_len,
 523           {"Parameter Length", "fcsp.dhchap.paramlen", FT_UINT16, BASE_DEC,
 524            NULL, 0x0, "", HFILL}},
 525         { &hf_auth_dhchap_hash_type,
 526           {"Hash Algorithm", "fcsp.dhchap.hashtype", FT_UINT32, BASE_DEC,
 527            VALS (fcauth_dhchap_hash_algo_vals), 0x0, "", HFILL}},
 528         { &hf_auth_dhchap_group_type,
 529           {"DH Group", "fcsp.dhchap.dhgid", FT_UINT32, BASE_DEC,
 530            VALS (fcauth_dhchap_dhgid_vals), 0x0, "", HFILL}},
 531         { &hf_auth_dhchap_chal_value,
 532           {"Challenge Value", "fcsp.dhchap.chalval", FT_BYTES, BASE_HEX,
 533            NULL, 0x0, "", HFILL}},
 534         { &hf_auth_dhchap_dhvalue,
 535           {"DH Value", "fcsp.dhchap.dhvalue", FT_BYTES, BASE_HEX, NULL, 0x0,
 536            "", HFILL}},
 537         { &hf_auth_dhchap_rsp_value,
 538           {"Response Value", "fcsp.dhchap.rspval", FT_BYTES, BASE_HEX, NULL,
 539            0x0, "", HFILL}},
 540
 541     };
 542
 543
 544     /* Setup protocol subtree array */
 545     static gint *ett[] = {
 546         &ett_fcsp,
 547     };
 548
 549     /* Register the protocol name and description */
 550     proto_fcsp = proto_register_protocol ("Fibre Channel Security Protocol",
 551                                            "FC-SP", "fcsp");
 552
 553     register_dissector("fcsp", dissect_fcsp, proto_fcsp);
 554     /* Required function calls to register the header fields and subtrees used */
 555     proto_register_field_array(proto_fcsp, hf, array_length(hf));
 556     proto_register_subtree_array(ett, array_length(ett));
 557
 558     data_handle = find_dissector("data");
 559 }
 560
 561 /* If this dissector uses sub-dissector registration add a registration routine.
 562    This format is required because a script is used to find these routines and
 563    create the code that calls these routines.
 564 */
 565 void
 566 proto_reg_handoff_fcsp (void)
 567 {
 568     dissector_handle_t fcsp_handle;
 569
 570     fcsp_handle = create_dissector_handle (dissect_fcsp, proto_fcsp);
 571
 572     data_handle = find_dissector ("data");
 573 }
 574