packet-zebra.c

   1 /* packet-zebra.c
   2  * Routines for zebra packet disassembly
   3  *
   4  * Jochen Friedrich <jochen@scram.de>
   5  *
   6  * $Id: packet-zebra.c,v 1.22 2002/08/02 23:36:05 jmayer Exp $
   7  *
   8  * Ethereal - Network traffic analyzer
   9  * By Gerald Combs <gerald@ethereal.com>
  10  * Copyright 1998 Gerald Combs
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  25  */
  26
  27 #ifdef HAVE_CONFIG_H
  28 #include "config.h"
  29 #endif
  30
  31 #include <string.h>
  32 #include <ctype.h>
  33
  34 #include <glib.h>
  35 #include <epan/packet.h>
  36
  37 static int proto_zebra = -1;
  38 static int hf_zebra_len = -1;
  39 static int hf_zebra_command = -1;
  40 static int hf_zebra_request = -1;
  41 static int hf_zebra_interface = -1;
  42 static int hf_zebra_index = -1;
  43 static int hf_zebra_indexnum = -1;
  44 static int hf_zebra_type = -1;
  45 static int hf_zebra_intflags = -1;
  46 static int hf_zebra_rtflags = -1;
  47 static int hf_zebra_distance = -1;
  48 static int hf_zebra_metric = -1;
  49 static int hf_zebra_mtu = -1;
  50 static int hf_zebra_bandwidth = -1;
  51 static int hf_zebra_family = -1;
  52 static int hf_zebra_message = -1;
  53 static int hf_zebra_msg_nexthop = -1;
  54 static int hf_zebra_msg_index = -1;
  55 static int hf_zebra_msg_distance = -1;
  56 static int hf_zebra_msg_metric = -1;
  57 static int hf_zebra_nexthopnum = -1;
  58 static int hf_zebra_nexthop4 = -1;
  59 static int hf_zebra_nexthop6 = -1;
  60 static int hf_zebra_dest4 = -1;
  61 static int hf_zebra_dest6 = -1;
  62 static int hf_zebra_prefixlen = -1;
  63 static int hf_zebra_prefix4 = -1;
  64 static int hf_zebra_prefix6 = -1;
  65
  66 static gint ett_zebra = -1;
  67 static gint ett_zebra_request = -1;
  68 static gint ett_message = -1;
  69
  70 #define TCP_PORT_ZEBRA                  2600
  71
  72 /* Zebra message types. */
  73 #define ZEBRA_INTERFACE_ADD                1
  74 #define ZEBRA_INTERFACE_DELETE             2
  75 #define ZEBRA_INTERFACE_ADDRESS_ADD        3
  76 #define ZEBRA_INTERFACE_ADDRESS_DELETE     4
  77 #define ZEBRA_INTERFACE_UP                 5
  78 #define ZEBRA_INTERFACE_DOWN               6
  79 #define ZEBRA_IPV4_ROUTE_ADD               7
  80 #define ZEBRA_IPV4_ROUTE_DELETE            8
  81 #define ZEBRA_IPV6_ROUTE_ADD               9
  82 #define ZEBRA_IPV6_ROUTE_DELETE           10
  83 #define ZEBRA_REDISTRIBUTE_ADD            11
  84 #define ZEBRA_REDISTRIBUTE_DELETE         12
  85 #define ZEBRA_REDISTRIBUTE_DEFAULT_ADD    13
  86 #define ZEBRA_REDISTRIBUTE_DEFAULT_DELETE 14
  87 #define ZEBRA_IPV4_NEXTHOP_LOOKUP         15
  88 #define ZEBRA_IPV6_NEXTHOP_LOOKUP         16
  89
  90 static const value_string messages[] = {
  91         { ZEBRA_INTERFACE_ADD,                  "Add Interface" },
  92         { ZEBRA_INTERFACE_DELETE,               "Delete Interface" },
  93         { ZEBRA_INTERFACE_ADDRESS_ADD,          "Add Interface Address" },
  94         { ZEBRA_INTERFACE_ADDRESS_DELETE,       "Delete Interface Address" },
  95         { ZEBRA_INTERFACE_UP,                   "Interface Up" },
  96         { ZEBRA_INTERFACE_DOWN,                 "Interface Down" },
  97         { ZEBRA_IPV4_ROUTE_ADD,                 "Add IPv4 Route" },
  98         { ZEBRA_IPV4_ROUTE_DELETE,              "Delete IPv4 Route" },
  99         { ZEBRA_IPV6_ROUTE_ADD,                 "Add IPv6 Route" },
 100         { ZEBRA_IPV6_ROUTE_DELETE,              "Delete IPv6 Route" },
 101         { ZEBRA_REDISTRIBUTE_ADD,               "Add Redistribute" },
 102         { ZEBRA_REDISTRIBUTE_DELETE,            "Delete Redistribute" },
 103         { ZEBRA_REDISTRIBUTE_DEFAULT_ADD,       "Add Default Redistribute" },
 104         { ZEBRA_REDISTRIBUTE_DEFAULT_DELETE,    "Delete Default Redistribute" },
 105         { ZEBRA_IPV4_NEXTHOP_LOOKUP,            "IPv4 Nexthop Lookup" },
 106         { ZEBRA_IPV6_NEXTHOP_LOOKUP,            "IPv6 Nexthop Lookup" },
 107         { 0,                                    NULL },
 108 };
 109
 110 /* Zebra route's types. */
 111 #define ZEBRA_ROUTE_SYSTEM               0
 112 #define ZEBRA_ROUTE_KERNEL               1
 113 #define ZEBRA_ROUTE_CONNECT              2
 114 #define ZEBRA_ROUTE_STATIC               3
 115 #define ZEBRA_ROUTE_RIP                  4
 116 #define ZEBRA_ROUTE_RIPNG                5
 117 #define ZEBRA_ROUTE_OSPF                 6
 118 #define ZEBRA_ROUTE_OSPF6                7
 119 #define ZEBRA_ROUTE_BGP                  8
 120
 121 static const value_string routes[] = {
 122         { ZEBRA_ROUTE_SYSTEM,                   "System Route" },
 123         { ZEBRA_ROUTE_KERNEL,                   "Kernel Route" },
 124         { ZEBRA_ROUTE_CONNECT,                  "Connected Route" },
 125         { ZEBRA_ROUTE_STATIC,                   "Static Route" },
 126         { ZEBRA_ROUTE_RIP,                      "RIP Route" },
 127         { ZEBRA_ROUTE_RIPNG,                    "RIPnG Route" },
 128         { ZEBRA_ROUTE_OSPF,                     "OSPF Route" },
 129         { ZEBRA_ROUTE_OSPF6,                    "OSPF6 Route" },
 130         { ZEBRA_ROUTE_BGP,                      "BGP Route" },
 131         { 0,                                    NULL },
 132 };
 133
 134 /* Zebra's family types. */
 135 #define ZEBRA_FAMILY_IPV4                1
 136 #define ZEBRA_FAMILY_IPV6                2
 137
 138 static const value_string families[] = {
 139         { ZEBRA_FAMILY_IPV4,                    "IPv4" },
 140         { ZEBRA_FAMILY_IPV6,                    "IPv6" },
 141         { 0,                                    NULL },
 142 };
 143
 144 /* Error codes of zebra. */
 145 #define ZEBRA_ERR_RTEXIST                1
 146 #define ZEBRA_ERR_RTUNREACH              2
 147 #define ZEBRA_ERR_EPERM                  3
 148 #define ZEBRA_ERR_RTNOEXIST              4
 149
 150 static const value_string errors[] = {
 151         { ZEBRA_ERR_RTEXIST,                    "Route Exists" },
 152         { ZEBRA_ERR_RTUNREACH,                  "Route Unreachable" },
 153         { ZEBRA_ERR_EPERM,                      "Permission Denied" },
 154         { ZEBRA_ERR_RTNOEXIST,                  "Route Does Not Exist" },
 155         { 0,                                    NULL },
 156 };
 157
 158 /* Zebra message flags */
 159 #define ZEBRA_FLAG_INTERNAL           0x01
 160 #define ZEBRA_FLAG_SELFROUTE          0x02
 161 #define ZEBRA_FLAG_BLACKHOLE          0x04
 162
 163 /* Subsequent Address Family Identifier. */
 164 #define ZEBRA_SAFI_UNICAST               1
 165 #define ZEBRA_SAFI_MULTICAST             2
 166 #define ZEBRA_SAFI_UNICAST_MULTICAST     3
 167 #define ZEBRA_SAFI_MPLS_VPN              4
 168
 169 static const value_string safis[] = {
 170         { ZEBRA_SAFI_UNICAST,                   "Unicast" },
 171         { ZEBRA_SAFI_MULTICAST,                 "Multicast" },
 172         { ZEBRA_SAFI_UNICAST_MULTICAST,         "Unicast And Multicast" },
 173         { ZEBRA_SAFI_MPLS_VPN,                  "MPLS VPN" },
 174         { 0,                                    NULL },
 175 };
 176
 177 /* Zebra API message flag. */
 178 #define ZEBRA_ZAPI_MESSAGE_NEXTHOP    0x01
 179 #define ZEBRA_ZAPI_MESSAGE_IFINDEX    0x02
 180 #define ZEBRA_ZAPI_MESSAGE_DISTANCE   0x04
 181 #define ZEBRA_ZAPI_MESSAGE_METRIC     0x08
 182
 183 #define INTERFACE_NAMSIZ      20
 184
 185 #define PSIZE(a) (((a) + 7) / (8))
 186
 187 static void
 188 dissect_zebra_request(proto_tree *tree, gboolean request, tvbuff_t *tvb,
 189         int offset, guint16 len, guint8 command)
 190 {
 191         guint32 prefix4;
 192         guint16 i;
 193         guint8  buffer6[16], prefixlen, message;
 194         proto_item *ti;
 195         proto_tree *msg_tree;
 196
 197         proto_tree_add_uint(tree, hf_zebra_len, tvb, offset, 2, len);
 198         offset += 2;
 199         proto_tree_add_uint(tree, hf_zebra_command, tvb, offset, 1,
 200                 command);
 201         offset += 1;
 202         switch(command) {
 203                 case ZEBRA_INTERFACE_ADD:
 204                 case ZEBRA_INTERFACE_UP:
 205                 case ZEBRA_INTERFACE_DOWN:
 206                         if (request) break;
 207                         /* Request just subscribes to messages */
 208
 209                         proto_tree_add_item(tree, hf_zebra_interface,
 210                                 tvb, offset, INTERFACE_NAMSIZ, FALSE);
 211                         offset += INTERFACE_NAMSIZ;
 212
 213                         proto_tree_add_item(tree, hf_zebra_index, tvb,
 214                                  offset, 4, FALSE);
 215                         offset += 4;
 216
 217                         proto_tree_add_item(tree, hf_zebra_intflags, tvb,
 218                                  offset, 4, FALSE);
 219                         offset += 4;
 220
 221                         proto_tree_add_item(tree, hf_zebra_metric, tvb,
 222                                  offset, 4, FALSE);
 223                         offset += 4;
 224
 225                         proto_tree_add_item(tree, hf_zebra_mtu, tvb,
 226                                  offset, 4, FALSE);
 227                         offset += 4;
 228
 229                         proto_tree_add_item(tree, hf_zebra_bandwidth, tvb,
 230                                  offset, 4, FALSE);
 231                         offset += 4;
 232
 233                         break;
 234                 case ZEBRA_INTERFACE_DELETE:
 235                         proto_tree_add_item(tree, hf_zebra_interface,
 236                                 tvb, offset, INTERFACE_NAMSIZ, FALSE);
 237                         offset += INTERFACE_NAMSIZ;
 238
 239                         proto_tree_add_item(tree, hf_zebra_index, tvb,
 240                                  offset, 4, FALSE);
 241                         offset += 4;
 242                         break;
 243                 case ZEBRA_INTERFACE_ADDRESS_ADD:
 244                 case ZEBRA_INTERFACE_ADDRESS_DELETE:
 245                         proto_tree_add_item(tree, hf_zebra_index, tvb,
 246                                  offset, 4, FALSE);
 247                         offset += 4;
 248
 249                         proto_tree_add_item(tree, hf_zebra_family, tvb,
 250                                  offset, 1, FALSE);
 251                         offset += 1;
 252
 253                         if (len == 17) { /* IPv4 */
 254                                 proto_tree_add_item(tree, hf_zebra_prefix4,
 255                                         tvb, offset, 4, FALSE);
 256                                 offset += 4;
 257                         }
 258                         else if (len == 41) { /* IPv6 */
 259                                 proto_tree_add_item(tree, hf_zebra_prefix6,
 260                                         tvb, offset, 16, FALSE);
 261                                 offset += 16;
 262                         }
 263                         else break;
 264
 265                         proto_tree_add_item(tree, hf_zebra_prefixlen, tvb,
 266                                  offset, 1, FALSE);
 267                         offset += 1;
 268
 269                         if (len == 17) { /* IPv4 */
 270                                 proto_tree_add_item(tree, hf_zebra_dest4,
 271                                         tvb, offset, 4, FALSE);
 272                                 offset += 4;
 273                         }
 274                         else if (len == 41) { /* IPv6 */
 275                                 proto_tree_add_item(tree, hf_zebra_dest6,
 276                                         tvb, offset, 16, FALSE);
 277                                 offset += 16;
 278                         }
 279                         break;
 280
 281                 case ZEBRA_IPV4_ROUTE_ADD:
 282                 case ZEBRA_IPV4_ROUTE_DELETE:
 283                         proto_tree_add_item(tree, hf_zebra_type, tvb,
 284                                  offset, 1, FALSE);
 285                         offset += 1;
 286
 287                         proto_tree_add_item(tree, hf_zebra_rtflags, tvb,
 288                                  offset, 1, FALSE);
 289                         offset += 1;
 290
 291                         message = tvb_get_guint8(tvb, offset);
 292                         ti = proto_tree_add_uint(tree, hf_zebra_message, tvb,
 293                                  offset, 1, message);
 294                         msg_tree = proto_item_add_subtree(ti, ett_message);
 295                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_nexthop,
 296                                 tvb, offset, 1, message);
 297                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_index,
 298                                 tvb, offset, 1, message);
 299                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_distance,
 300                                 tvb, offset, 1, message);
 301                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_metric,
 302                                 tvb, offset, 1, message);
 303                         offset += 1;
 304
 305                         prefixlen = tvb_get_guint8(tvb, offset);
 306                         proto_tree_add_uint(tree, hf_zebra_prefixlen, tvb,
 307                                  offset, 1, prefixlen);
 308                         offset += 1;
 309
 310                         prefix4 = 0;
 311                         tvb_memcpy(tvb, (guint8 *)&prefix4, offset,
 312                             MIN((unsigned) PSIZE(prefixlen), sizeof prefix4));
 313                         proto_tree_add_ipv4(tree, hf_zebra_prefix4,
 314                                 tvb, offset, PSIZE(prefixlen), prefix4);
 315                         offset += PSIZE(prefixlen);
 316
 317                         if (message & ZEBRA_ZAPI_MESSAGE_NEXTHOP) {
 318                                 i = tvb_get_guint8(tvb, offset);
 319                                 proto_tree_add_uint(tree, hf_zebra_nexthopnum,
 320                                         tvb, offset, 1, i);
 321                                 offset += 1;
 322
 323                                 if (i>len) break; /* Sanity */
 324
 325                                 while (i--) {
 326                                         proto_tree_add_item(tree,
 327                                                 hf_zebra_nexthop4, tvb,
 328                                                 offset, 4, FALSE);
 329                                         offset += 4;
 330                                 }
 331                         }
 332                         if (message & ZEBRA_ZAPI_MESSAGE_IFINDEX) {
 333                                 i = tvb_get_guint8(tvb, offset);
 334                                 proto_tree_add_uint(tree, hf_zebra_indexnum,
 335                                         tvb, offset, 1, i);
 336                                 offset += 1;
 337
 338                                 if (i>len) break; /* Sanity */
 339
 340                                 while (i--) {
 341                                         proto_tree_add_item(tree,
 342                                                 hf_zebra_index, tvb,
 343                                                 offset, 4, FALSE);
 344                                         offset += 4;
 345                                 }
 346                         }
 347                         if (message & ZEBRA_ZAPI_MESSAGE_DISTANCE) {
 348                                 proto_tree_add_item(tree, hf_zebra_distance,
 349                                         tvb, offset, 1, FALSE);
 350                                 offset += 1;
 351                         }
 352                         if (message & ZEBRA_ZAPI_MESSAGE_METRIC) {
 353                                 proto_tree_add_item(tree, hf_zebra_metric,
 354                                         tvb, offset, 4, FALSE);
 355                                 offset += 4;
 356                         }
 357                         break;
 358                 case ZEBRA_IPV6_ROUTE_ADD:
 359                 case ZEBRA_IPV6_ROUTE_DELETE:
 360                         proto_tree_add_item(tree, hf_zebra_type, tvb,
 361                                  offset, 1, FALSE);
 362                         offset += 1;
 363
 364                         proto_tree_add_item(tree, hf_zebra_rtflags, tvb,
 365                                  offset, 1, FALSE);
 366                         offset += 1;
 367
 368                         message = tvb_get_guint8(tvb, offset);
 369                         ti = proto_tree_add_uint(tree, hf_zebra_message, tvb,
 370                                  offset, 1, message);
 371                         msg_tree = proto_item_add_subtree(ti, ett_message);
 372                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_nexthop,
 373                                 tvb, offset, 1, message);
 374                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_index,
 375                                 tvb, offset, 1, message);
 376                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_distance,
 377                                 tvb, offset, 1, message);
 378                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_metric,
 379                                 tvb, offset, 1, message);
 380                         offset += 1;
 381
 382                         prefixlen = tvb_get_guint8(tvb, offset);
 383                         proto_tree_add_uint(tree, hf_zebra_prefixlen, tvb,
 384                                  offset, 1, prefixlen);
 385                         offset += 1;
 386
 387                         memset(buffer6, '\0', sizeof buffer6);
 388                         tvb_memcpy(tvb, buffer6, offset,
 389                             MIN((unsigned) PSIZE(prefixlen), sizeof buffer6));
 390                         proto_tree_add_ipv6(tree, hf_zebra_prefix6,
 391                                 tvb, offset, PSIZE(prefixlen), buffer6);
 392                         offset += PSIZE(prefixlen);
 393
 394                         if (message & ZEBRA_ZAPI_MESSAGE_NEXTHOP) {
 395                                 i = tvb_get_guint8(tvb, offset);
 396                                 proto_tree_add_uint(tree, hf_zebra_nexthopnum,
 397                                         tvb, offset, 1, i);
 398                                 offset += 1;
 399
 400                                 if (i>len) break; /* Sanity */
 401
 402                                 while (i--) {
 403                                         proto_tree_add_item(tree,
 404                                                 hf_zebra_nexthop6, tvb,
 405                                                 offset, 16, FALSE);
 406                                         offset += 16;
 407                                 }
 408                         }
 409                         if (message & ZEBRA_ZAPI_MESSAGE_IFINDEX) {
 410                                 i = tvb_get_guint8(tvb, offset);
 411                                 proto_tree_add_uint(tree, hf_zebra_indexnum,
 412                                         tvb, offset, 1, i);
 413                                 offset += 1;
 414
 415                                 if (i>len) break; /* Sanity */
 416
 417                                 while (i--) {
 418                                         proto_tree_add_item(tree,
 419                                                 hf_zebra_index, tvb,
 420                                                 offset, 4, FALSE);
 421                                         offset += 4;
 422                                 }
 423                         }
 424                         if (message & ZEBRA_ZAPI_MESSAGE_DISTANCE) {
 425                                 proto_tree_add_item(tree, hf_zebra_distance,
 426                                         tvb, offset, 1, FALSE);
 427                                 offset += 1;
 428                         }
 429                         if (message & ZEBRA_ZAPI_MESSAGE_METRIC) {
 430                                 proto_tree_add_item(tree, hf_zebra_metric,
 431                                         tvb, offset, 4, FALSE);
 432                                 offset += 4;
 433                         }
 434                         break;
 435                 case ZEBRA_REDISTRIBUTE_ADD:
 436                 case ZEBRA_REDISTRIBUTE_DELETE:
 437                         proto_tree_add_item(tree, hf_zebra_type, tvb,
 438                                  offset, 1, FALSE);
 439                         offset += 1;
 440                         break;
 441                 case ZEBRA_REDISTRIBUTE_DEFAULT_ADD:
 442                 case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE:
 443                         break;
 444                 case ZEBRA_IPV4_NEXTHOP_LOOKUP:
 445                         proto_tree_add_item(tree, hf_zebra_nexthop4,
 446                                 tvb, offset, 4, FALSE);
 447                         offset += 4;
 448
 449                         proto_tree_add_item(tree, hf_zebra_metric,
 450                                 tvb, offset, 4, FALSE);
 451                         offset += 4;
 452                         break;
 453                 case ZEBRA_IPV6_NEXTHOP_LOOKUP:
 454                         /* Not yet implemeted in ZEBRA */
 455                         break;
 456         }
 457 }
 458
 459 static void
 460 dissect_zebra(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 461 {
 462         proto_item      *ti;
 463         proto_tree      *zebra_tree;
 464         gboolean        request;
 465         int             left, offset;
 466
 467         if (check_col(pinfo->cinfo, COL_PROTOCOL))
 468                 col_set_str(pinfo->cinfo, COL_PROTOCOL, "ZEBRA");
 469
 470         request = (pinfo->destport == pinfo->match_port);
 471         left = tvb_reported_length(tvb);
 472         offset = 0;
 473
 474         if (check_col(pinfo->cinfo, COL_INFO)) {
 475                 col_set_str(pinfo->cinfo, COL_INFO,
 476                         request? "ZEBRA Request" : "ZEBRA Reply");
 477         }
 478         if (tree) {
 479                 ti = proto_tree_add_item(tree, proto_zebra, tvb, offset, -1,
 480                         FALSE);
 481                 zebra_tree = proto_item_add_subtree(ti, ett_zebra);
 482                 proto_tree_add_boolean_hidden(zebra_tree, hf_zebra_request,
 483                         tvb, offset, 0, request);
 484
 485                 for (;;) {
 486                         guint8          command;
 487                         guint16         len;
 488                         proto_tree      *zebra_request_tree;
 489
 490                         if (left < 3) break;
 491
 492                         len = tvb_get_ntohs(tvb, offset);
 493                         if (len < 3) break;
 494
 495                         command = tvb_get_guint8(tvb, offset+2);
 496
 497                         ti = proto_tree_add_uint(zebra_tree,
 498                                 hf_zebra_command, tvb, offset, len,
 499                                 command);
 500                         zebra_request_tree = proto_item_add_subtree(ti,
 501                                 ett_zebra_request);
 502                         dissect_zebra_request(zebra_request_tree, request, tvb,
 503                                 offset, len, command);
 504
 505                         offset += len;
 506                         left -= len;
 507                 }
 508         }
 509 }
 510
 511 void
 512 proto_register_zebra(void)
 513 {
 514
 515   static hf_register_info hf[] = {
 516     { &hf_zebra_len,
 517       { "Length",               "zebra.len",
 518         FT_UINT16, BASE_DEC, NULL, 0x0,
 519         "Length of ZEBRA request", HFILL }},
 520     { &hf_zebra_request,
 521       { "Request",              "zebra.request",
 522         FT_BOOLEAN, BASE_NONE, NULL, 0x0,
 523         "TRUE if ZEBRA request", HFILL }},
 524     { &hf_zebra_command,
 525       { "Command",              "zebra.command",
 526         FT_UINT8, BASE_DEC, VALS(messages), 0x0,
 527         "ZEBRA command", HFILL }},
 528     { &hf_zebra_interface,
 529       { "Interface",            "zebra.interface",
 530         FT_STRING, BASE_NONE, NULL, 0x0,
 531         "Interface name of ZEBRA request", HFILL }},
 532     { &hf_zebra_index,
 533       { "Index",                "zebra.index",
 534         FT_UINT32, BASE_DEC, NULL, 0x0,
 535         "Index of interface", HFILL }},
 536     { &hf_zebra_indexnum,
 537       { "Index Number",         "zebra.indexnum",
 538         FT_UINT8, BASE_DEC, NULL, 0x0,
 539         "Number of indices for route", HFILL }},
 540     { &hf_zebra_intflags,
 541       { "Flags",                "zebra.intflags",
 542         FT_UINT32, BASE_DEC, NULL, 0x0,
 543         "Flags of interface", HFILL }},
 544     { &hf_zebra_rtflags,
 545       { "Flags",                "zebra.rtflags",
 546         FT_UINT8, BASE_DEC, NULL, 0x0,
 547         "Flags of route", HFILL }},
 548     { &hf_zebra_message,
 549       { "Message",              "zebra.message",
 550         FT_UINT8, BASE_DEC, NULL, 0x0,
 551         "Message type of route", HFILL }},
 552     { &hf_zebra_msg_nexthop,
 553       { "Message Nexthop",      "zebra.message.nexthop",
 554         FT_BOOLEAN, 8, NULL, ZEBRA_ZAPI_MESSAGE_NEXTHOP,
 555         "Message contains nexthop", HFILL }},
 556     { &hf_zebra_msg_index,
 557       { "Message Index",        "zebra.message.index",
 558         FT_BOOLEAN, 8, NULL, ZEBRA_ZAPI_MESSAGE_IFINDEX,
 559         "Message contains index", HFILL }},
 560     { &hf_zebra_msg_distance,
 561       { "Message Distance",     "zebra.message.distance",
 562         FT_BOOLEAN, 8, NULL, ZEBRA_ZAPI_MESSAGE_DISTANCE,
 563         "Message contains distance", HFILL }},
 564     { &hf_zebra_msg_metric,
 565       { "Message Metric",       "zebra.message.metric",
 566         FT_BOOLEAN, 8, NULL, ZEBRA_ZAPI_MESSAGE_METRIC,
 567         "Message contains metric", HFILL }},
 568     { &hf_zebra_type,
 569       { "Type",                 "zebra.type",
 570         FT_UINT8, BASE_DEC, VALS(routes), 0x0,
 571         "Type of route", HFILL }},
 572     { &hf_zebra_distance,
 573       { "Distance",             "zebra.distance",
 574         FT_UINT8, BASE_DEC, NULL, 0x0,
 575         "Distance of route", HFILL }},
 576     { &hf_zebra_metric,
 577       { "Metric",               "zebra.metric",
 578         FT_UINT32, BASE_DEC, NULL, 0x0,
 579         "Metric of interface or route", HFILL }},
 580     { &hf_zebra_mtu,
 581       { "MTU",                  "zebra.mtu",
 582         FT_UINT32, BASE_DEC, NULL, 0x0,
 583         "MTU of interface", HFILL }},
 584     { &hf_zebra_bandwidth,
 585       { "Bandwidth",            "zebra.bandwidth",
 586         FT_UINT32, BASE_DEC, NULL, 0x0,
 587         "Bandwidth of interface", HFILL }},
 588     { &hf_zebra_family,
 589       { "Family",               "zebra.family",
 590         FT_UINT32, BASE_DEC, NULL, 0x0,
 591         "Family of IP address", HFILL }},
 592     { &hf_zebra_dest4,
 593       { "Destination",          "zebra.dest4",
 594         FT_IPv4, BASE_NONE, NULL, 0x0,
 595         "Destination IPv4 field", HFILL }},
 596     { &hf_zebra_dest6,
 597       { "Destination",          "zebra.dest6",
 598         FT_IPv6, BASE_NONE, NULL, 0x0,
 599         "Destination IPv6 field", HFILL }},
 600     { &hf_zebra_nexthopnum,
 601       { "Nexthop Number",       "zebra.nexthopnum",
 602         FT_UINT8, BASE_DEC, NULL, 0x0,
 603         "Number of nexthops in route", HFILL }},
 604     { &hf_zebra_nexthop4,
 605       { "Nexthop",              "zebra.nexthop4",
 606         FT_IPv4, BASE_NONE, NULL, 0x0,
 607         "Nethop IPv4 field of route", HFILL }},
 608     { &hf_zebra_nexthop6,
 609       { "Nexthop",              "zebra.nexthop6",
 610         FT_IPv6, BASE_NONE, NULL, 0x0,
 611         "Nethop IPv6 field of route", HFILL }},
 612     { &hf_zebra_prefixlen,
 613       { "Prefix length",        "zebra.prefixlen",
 614         FT_UINT32, BASE_DEC, NULL, 0x0,
 615         "Prefix length", HFILL }},
 616     { &hf_zebra_prefix4,
 617       { "Prefix",               "zebra.prefix4",
 618         FT_IPv4, BASE_NONE, NULL, 0x0,
 619         "Prefix IPv4", HFILL }},
 620     { &hf_zebra_prefix6,
 621       { "Prefix",               "zebra.prefix6",
 622         FT_IPv6, BASE_NONE, NULL, 0x0,
 623         "Prefix IPv6", HFILL }},
 624   };
 625
 626   static gint *ett[] = {
 627     &ett_zebra,
 628     &ett_zebra_request,
 629     &ett_message,
 630   };
 631
 632   proto_zebra = proto_register_protocol("Zebra Protocol", "ZEBRA", "zebra");
 633   proto_register_field_array(proto_zebra, hf, array_length(hf));
 634   proto_register_subtree_array(ett, array_length(ett));
 635 }
 636
 637 void
 638 proto_reg_handoff_zebra(void)
 639 {
 640   dissector_handle_t zebra_handle;
 641
 642   zebra_handle = create_dissector_handle(dissect_zebra, proto_zebra);
 643   dissector_add("tcp.port", TCP_PORT_ZEBRA, zebra_handle);
 644 }