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 1.21 2002/04/02 01:32:11 guy 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 #ifdef HAVE_SYS_TYPES_H
  32 #include <sys/types.h>
  33 #endif
  34
  35 #include <string.h>
  36 #include <ctype.h>
  37
  38 #include <glib.h>
  39 #include <epan/packet.h>
  40
  41 static int proto_zebra = -1;
  42 static int hf_zebra_len = -1;
  43 static int hf_zebra_command = -1;
  44 static int hf_zebra_request = -1;
  45 static int hf_zebra_interface = -1;
  46 static int hf_zebra_index = -1;
  47 static int hf_zebra_indexnum = -1;
  48 static int hf_zebra_type = -1;
  49 static int hf_zebra_intflags = -1;
  50 static int hf_zebra_rtflags = -1;
  51 static int hf_zebra_distance = -1;
  52 static int hf_zebra_metric = -1;
  53 static int hf_zebra_mtu = -1;
  54 static int hf_zebra_bandwidth = -1;
  55 static int hf_zebra_family = -1;
  56 static int hf_zebra_message = -1;
  57 static int hf_zebra_msg_nexthop = -1;
  58 static int hf_zebra_msg_index = -1;
  59 static int hf_zebra_msg_distance = -1;
  60 static int hf_zebra_msg_metric = -1;
  61 static int hf_zebra_nexthopnum = -1;
  62 static int hf_zebra_nexthop4 = -1;
  63 static int hf_zebra_nexthop6 = -1;
  64 static int hf_zebra_dest4 = -1;
  65 static int hf_zebra_dest6 = -1;
  66 static int hf_zebra_prefixlen = -1;
  67 static int hf_zebra_prefix4 = -1;
  68 static int hf_zebra_prefix6 = -1;
  69
  70 static gint ett_zebra = -1;
  71 static gint ett_zebra_request = -1;
  72 static gint ett_message = -1;
  73
  74 #define TCP_PORT_ZEBRA                  2600
  75
  76 /* Zebra message types. */
  77 #define ZEBRA_INTERFACE_ADD                1
  78 #define ZEBRA_INTERFACE_DELETE             2
  79 #define ZEBRA_INTERFACE_ADDRESS_ADD        3
  80 #define ZEBRA_INTERFACE_ADDRESS_DELETE     4
  81 #define ZEBRA_INTERFACE_UP                 5
  82 #define ZEBRA_INTERFACE_DOWN               6
  83 #define ZEBRA_IPV4_ROUTE_ADD               7
  84 #define ZEBRA_IPV4_ROUTE_DELETE            8
  85 #define ZEBRA_IPV6_ROUTE_ADD               9
  86 #define ZEBRA_IPV6_ROUTE_DELETE           10
  87 #define ZEBRA_REDISTRIBUTE_ADD            11
  88 #define ZEBRA_REDISTRIBUTE_DELETE         12
  89 #define ZEBRA_REDISTRIBUTE_DEFAULT_ADD    13
  90 #define ZEBRA_REDISTRIBUTE_DEFAULT_DELETE 14
  91 #define ZEBRA_IPV4_NEXTHOP_LOOKUP         15
  92 #define ZEBRA_IPV6_NEXTHOP_LOOKUP         16
  93
  94 static const value_string messages[] = {
  95         { ZEBRA_INTERFACE_ADD,                  "Add Interface" },
  96         { ZEBRA_INTERFACE_DELETE,               "Delete Interface" },
  97         { ZEBRA_INTERFACE_ADDRESS_ADD,          "Add Interface Address" },
  98         { ZEBRA_INTERFACE_ADDRESS_DELETE,       "Delete Interface Address" },
  99         { ZEBRA_INTERFACE_UP,                   "Interface Up" },
 100         { ZEBRA_INTERFACE_DOWN,                 "Interface Down" },
 101         { ZEBRA_IPV4_ROUTE_ADD,                 "Add IPv4 Route" },
 102         { ZEBRA_IPV4_ROUTE_DELETE,              "Delete IPv4 Route" },
 103         { ZEBRA_IPV6_ROUTE_ADD,                 "Add IPv6 Route" },
 104         { ZEBRA_IPV6_ROUTE_DELETE,              "Delete IPv6 Route" },
 105         { ZEBRA_REDISTRIBUTE_ADD,               "Add Redistribute" },
 106         { ZEBRA_REDISTRIBUTE_DELETE,            "Delete Redistribute" },
 107         { ZEBRA_REDISTRIBUTE_DEFAULT_ADD,       "Add Default Redistribute" },
 108         { ZEBRA_REDISTRIBUTE_DEFAULT_DELETE,    "Delete Default Redistribute" },
 109         { ZEBRA_IPV4_NEXTHOP_LOOKUP,            "IPv4 Nexthop Lookup" },
 110         { ZEBRA_IPV6_NEXTHOP_LOOKUP,            "IPv6 Nexthop Lookup" },
 111         { 0,                                    NULL },
 112 };
 113
 114 /* Zebra route's types. */
 115 #define ZEBRA_ROUTE_SYSTEM               0
 116 #define ZEBRA_ROUTE_KERNEL               1
 117 #define ZEBRA_ROUTE_CONNECT              2
 118 #define ZEBRA_ROUTE_STATIC               3
 119 #define ZEBRA_ROUTE_RIP                  4
 120 #define ZEBRA_ROUTE_RIPNG                5
 121 #define ZEBRA_ROUTE_OSPF                 6
 122 #define ZEBRA_ROUTE_OSPF6                7
 123 #define ZEBRA_ROUTE_BGP                  8
 124
 125 static const value_string routes[] = {
 126         { ZEBRA_ROUTE_SYSTEM,                   "System Route" },
 127         { ZEBRA_ROUTE_KERNEL,                   "Kernel Route" },
 128         { ZEBRA_ROUTE_CONNECT,                  "Connected Route" },
 129         { ZEBRA_ROUTE_STATIC,                   "Static Route" },
 130         { ZEBRA_ROUTE_RIP,                      "RIP Route" },
 131         { ZEBRA_ROUTE_RIPNG,                    "RIPnG Route" },
 132         { ZEBRA_ROUTE_OSPF,                     "OSPF Route" },
 133         { ZEBRA_ROUTE_OSPF6,                    "OSPF6 Route" },
 134         { ZEBRA_ROUTE_BGP,                      "BGP Route" },
 135         { 0,                                    NULL },
 136 };
 137
 138 /* Zebra's family types. */
 139 #define ZEBRA_FAMILY_IPV4                1
 140 #define ZEBRA_FAMILY_IPV6                2
 141
 142 static const value_string families[] = {
 143         { ZEBRA_FAMILY_IPV4,                    "IPv4" },
 144         { ZEBRA_FAMILY_IPV6,                    "IPv6" },
 145         { 0,                                    NULL },
 146 };
 147
 148 /* Error codes of zebra. */
 149 #define ZEBRA_ERR_RTEXIST                1
 150 #define ZEBRA_ERR_RTUNREACH              2
 151 #define ZEBRA_ERR_EPERM                  3
 152 #define ZEBRA_ERR_RTNOEXIST              4
 153
 154 static const value_string errors[] = {
 155         { ZEBRA_ERR_RTEXIST,                    "Route Exists" },
 156         { ZEBRA_ERR_RTUNREACH,                  "Route Unreachable" },
 157         { ZEBRA_ERR_EPERM,                      "Permission Denied" },
 158         { ZEBRA_ERR_RTNOEXIST,                  "Route Does Not Exist" },
 159         { 0,                                    NULL },
 160 };
 161
 162 /* Zebra message flags */
 163 #define ZEBRA_FLAG_INTERNAL           0x01
 164 #define ZEBRA_FLAG_SELFROUTE          0x02
 165 #define ZEBRA_FLAG_BLACKHOLE          0x04
 166
 167 /* Subsequent Address Family Identifier. */
 168 #define ZEBRA_SAFI_UNICAST               1
 169 #define ZEBRA_SAFI_MULTICAST             2
 170 #define ZEBRA_SAFI_UNICAST_MULTICAST     3
 171 #define ZEBRA_SAFI_MPLS_VPN              4
 172
 173 static const value_string safis[] = {
 174         { ZEBRA_SAFI_UNICAST,                   "Unicast" },
 175         { ZEBRA_SAFI_MULTICAST,                 "Multicast" },
 176         { ZEBRA_SAFI_UNICAST_MULTICAST,         "Unicast And Multicast" },
 177         { ZEBRA_SAFI_MPLS_VPN,                  "MPLS VPN" },
 178         { 0,                                    NULL },
 179 };
 180
 181 /* Zebra API message flag. */
 182 #define ZEBRA_ZAPI_MESSAGE_NEXTHOP    0x01
 183 #define ZEBRA_ZAPI_MESSAGE_IFINDEX    0x02
 184 #define ZEBRA_ZAPI_MESSAGE_DISTANCE   0x04
 185 #define ZEBRA_ZAPI_MESSAGE_METRIC     0x08
 186
 187 #define INTERFACE_NAMSIZ      20
 188
 189 #define PSIZE(a) (((a) + 7) / (8))
 190
 191 static void
 192 dissect_zebra_request(proto_tree *tree, gboolean request, tvbuff_t *tvb,
 193         int offset, guint16 len, guint8 command)
 194 {
 195         guint32 prefix4;
 196         guint16 i;
 197         guint8  buffer6[16], prefixlen, message;
 198         proto_item *ti;
 199         proto_tree *msg_tree;
 200
 201         proto_tree_add_uint(tree, hf_zebra_len, tvb, offset, 2, len);
 202         offset += 2;
 203         proto_tree_add_uint(tree, hf_zebra_command, tvb, offset, 1,
 204                 command);
 205         offset += 1;
 206         switch(command) {
 207                 case ZEBRA_INTERFACE_ADD:
 208                 case ZEBRA_INTERFACE_UP:
 209                 case ZEBRA_INTERFACE_DOWN:
 210                         if (request) break;
 211                         /* Request just subscribes to messages */
 212
 213                         proto_tree_add_item(tree, hf_zebra_interface,
 214                                 tvb, offset, INTERFACE_NAMSIZ, FALSE);
 215                         offset += INTERFACE_NAMSIZ;
 216
 217                         proto_tree_add_item(tree, hf_zebra_index, tvb,
 218                                  offset, 4, FALSE);
 219                         offset += 4;
 220
 221                         proto_tree_add_item(tree, hf_zebra_intflags, tvb,
 222                                  offset, 4, FALSE);
 223                         offset += 4;
 224
 225                         proto_tree_add_item(tree, hf_zebra_metric, tvb,
 226                                  offset, 4, FALSE);
 227                         offset += 4;
 228
 229                         proto_tree_add_item(tree, hf_zebra_mtu, tvb,
 230                                  offset, 4, FALSE);
 231                         offset += 4;
 232
 233                         proto_tree_add_item(tree, hf_zebra_bandwidth, tvb,
 234                                  offset, 4, FALSE);
 235                         offset += 4;
 236
 237                         break;
 238                 case ZEBRA_INTERFACE_DELETE:
 239                         proto_tree_add_item(tree, hf_zebra_interface,
 240                                 tvb, offset, INTERFACE_NAMSIZ, FALSE);
 241                         offset += INTERFACE_NAMSIZ;
 242
 243                         proto_tree_add_item(tree, hf_zebra_index, tvb,
 244                                  offset, 4, FALSE);
 245                         offset += 4;
 246                         break;
 247                 case ZEBRA_INTERFACE_ADDRESS_ADD:
 248                 case ZEBRA_INTERFACE_ADDRESS_DELETE:
 249                         proto_tree_add_item(tree, hf_zebra_index, tvb,
 250                                  offset, 4, FALSE);
 251                         offset += 4;
 252
 253                         proto_tree_add_item(tree, hf_zebra_family, tvb,
 254                                  offset, 1, FALSE);
 255                         offset += 1;
 256
 257                         if (len == 17) { /* IPv4 */
 258                                 proto_tree_add_item(tree, hf_zebra_prefix4,
 259                                         tvb, offset, 4, FALSE);
 260                                 offset += 4;
 261                         }
 262                         else if (len == 41) { /* IPv6 */
 263                                 proto_tree_add_item(tree, hf_zebra_prefix6,
 264                                         tvb, offset, 16, FALSE);
 265                                 offset += 16;
 266                         }
 267                         else break;
 268
 269                         proto_tree_add_item(tree, hf_zebra_prefixlen, tvb,
 270                                  offset, 1, FALSE);
 271                         offset += 1;
 272
 273                         if (len == 17) { /* IPv4 */
 274                                 proto_tree_add_item(tree, hf_zebra_dest4,
 275                                         tvb, offset, 4, FALSE);
 276                                 offset += 4;
 277                         }
 278                         else if (len == 41) { /* IPv6 */
 279                                 proto_tree_add_item(tree, hf_zebra_dest6,
 280                                         tvb, offset, 16, FALSE);
 281                                 offset += 16;
 282                         }
 283                         break;
 284
 285                 case ZEBRA_IPV4_ROUTE_ADD:
 286                 case ZEBRA_IPV4_ROUTE_DELETE:
 287                         proto_tree_add_item(tree, hf_zebra_type, tvb,
 288                                  offset, 1, FALSE);
 289                         offset += 1;
 290
 291                         proto_tree_add_item(tree, hf_zebra_rtflags, tvb,
 292                                  offset, 1, FALSE);
 293                         offset += 1;
 294
 295                         message = tvb_get_guint8(tvb, offset);
 296                         ti = proto_tree_add_uint(tree, hf_zebra_message, tvb,
 297                                  offset, 1, message);
 298                         msg_tree = proto_item_add_subtree(ti, ett_message);
 299                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_nexthop,
 300                                 tvb, offset, 1, message);
 301                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_index,
 302                                 tvb, offset, 1, message);
 303                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_distance,
 304                                 tvb, offset, 1, message);
 305                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_metric,
 306                                 tvb, offset, 1, message);
 307                         offset += 1;
 308
 309                         prefixlen = tvb_get_guint8(tvb, offset);
 310                         proto_tree_add_uint(tree, hf_zebra_prefixlen, tvb,
 311                                  offset, 1, prefixlen);
 312                         offset += 1;
 313
 314                         prefix4 = 0;
 315                         tvb_memcpy(tvb, (guint8 *)&prefix4, offset,
 316                             MIN((unsigned) PSIZE(prefixlen), sizeof prefix4));
 317                         proto_tree_add_ipv4(tree, hf_zebra_prefix4,
 318                                 tvb, offset, PSIZE(prefixlen), prefix4);
 319                         offset += PSIZE(prefixlen);
 320
 321                         if (message & ZEBRA_ZAPI_MESSAGE_NEXTHOP) {
 322                                 i = tvb_get_guint8(tvb, offset);
 323                                 proto_tree_add_uint(tree, hf_zebra_nexthopnum,
 324                                         tvb, offset, 1, i);
 325                                 offset += 1;
 326
 327                                 if (i>len) break; /* Sanity */
 328
 329                                 while (i--) {
 330                                         proto_tree_add_item(tree,
 331                                                 hf_zebra_nexthop4, tvb,
 332                                                 offset, 4, FALSE);
 333                                         offset += 4;
 334                                 }
 335                         }
 336                         if (message & ZEBRA_ZAPI_MESSAGE_IFINDEX) {
 337                                 i = tvb_get_guint8(tvb, offset);
 338                                 proto_tree_add_uint(tree, hf_zebra_indexnum,
 339                                         tvb, offset, 1, i);
 340                                 offset += 1;
 341
 342                                 if (i>len) break; /* Sanity */
 343
 344                                 while (i--) {
 345                                         proto_tree_add_item(tree,
 346                                                 hf_zebra_index, tvb,
 347                                                 offset, 4, FALSE);
 348                                         offset += 4;
 349                                 }
 350                         }
 351                         if (message & ZEBRA_ZAPI_MESSAGE_DISTANCE) {
 352                                 proto_tree_add_item(tree, hf_zebra_distance,
 353                                         tvb, offset, 1, FALSE);
 354                                 offset += 1;
 355                         }
 356                         if (message & ZEBRA_ZAPI_MESSAGE_METRIC) {
 357                                 proto_tree_add_item(tree, hf_zebra_metric,
 358                                         tvb, offset, 4, FALSE);
 359                                 offset += 4;
 360                         }
 361                         break;
 362                 case ZEBRA_IPV6_ROUTE_ADD:
 363                 case ZEBRA_IPV6_ROUTE_DELETE:
 364                         proto_tree_add_item(tree, hf_zebra_type, tvb,
 365                                  offset, 1, FALSE);
 366                         offset += 1;
 367
 368                         proto_tree_add_item(tree, hf_zebra_rtflags, tvb,
 369                                  offset, 1, FALSE);
 370                         offset += 1;
 371
 372                         message = tvb_get_guint8(tvb, offset);
 373                         ti = proto_tree_add_uint(tree, hf_zebra_message, tvb,
 374                                  offset, 1, message);
 375                         msg_tree = proto_item_add_subtree(ti, ett_message);
 376                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_nexthop,
 377                                 tvb, offset, 1, message);
 378                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_index,
 379                                 tvb, offset, 1, message);
 380                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_distance,
 381                                 tvb, offset, 1, message);
 382                         proto_tree_add_boolean(msg_tree, hf_zebra_msg_metric,
 383                                 tvb, offset, 1, message);
 384                         offset += 1;
 385
 386                         prefixlen = tvb_get_guint8(tvb, offset);
 387                         proto_tree_add_uint(tree, hf_zebra_prefixlen, tvb,
 388                                  offset, 1, prefixlen);
 389                         offset += 1;
 390
 391                         memset(buffer6, '\0', sizeof buffer6);
 392                         tvb_memcpy(tvb, buffer6, offset,
 393                             MIN((unsigned) PSIZE(prefixlen), sizeof buffer6));
 394                         proto_tree_add_ipv6(tree, hf_zebra_prefix6,
 395                                 tvb, offset, PSIZE(prefixlen), buffer6);
 396                         offset += PSIZE(prefixlen);
 397
 398                         if (message & ZEBRA_ZAPI_MESSAGE_NEXTHOP) {
 399                                 i = tvb_get_guint8(tvb, offset);
 400                                 proto_tree_add_uint(tree, hf_zebra_nexthopnum,
 401                                         tvb, offset, 1, i);
 402                                 offset += 1;
 403
 404                                 if (i>len) break; /* Sanity */
 405
 406                                 while (i--) {
 407                                         proto_tree_add_item(tree,
 408                                                 hf_zebra_nexthop6, tvb,
 409                                                 offset, 16, FALSE);
 410                                         offset += 16;
 411                                 }
 412                         }
 413                         if (message & ZEBRA_ZAPI_MESSAGE_IFINDEX) {
 414                                 i = tvb_get_guint8(tvb, offset);
 415                                 proto_tree_add_uint(tree, hf_zebra_indexnum,
 416                                         tvb, offset, 1, i);
 417                                 offset += 1;
 418
 419                                 if (i>len) break; /* Sanity */
 420
 421                                 while (i--) {
 422                                         proto_tree_add_item(tree,
 423                                                 hf_zebra_index, tvb,
 424                                                 offset, 4, FALSE);
 425                                         offset += 4;
 426                                 }
 427                         }
 428                         if (message & ZEBRA_ZAPI_MESSAGE_DISTANCE) {
 429                                 proto_tree_add_item(tree, hf_zebra_distance,
 430                                         tvb, offset, 1, FALSE);
 431                                 offset += 1;
 432                         }
 433                         if (message & ZEBRA_ZAPI_MESSAGE_METRIC) {
 434                                 proto_tree_add_item(tree, hf_zebra_metric,
 435                                         tvb, offset, 4, FALSE);
 436                                 offset += 4;
 437                         }
 438                         break;
 439                 case ZEBRA_REDISTRIBUTE_ADD:
 440                 case ZEBRA_REDISTRIBUTE_DELETE:
 441                         proto_tree_add_item(tree, hf_zebra_type, tvb,
 442                                  offset, 1, FALSE);
 443                         offset += 1;
 444                         break;
 445                 case ZEBRA_REDISTRIBUTE_DEFAULT_ADD:
 446                 case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE:
 447                         break;
 448                 case ZEBRA_IPV4_NEXTHOP_LOOKUP:
 449                         proto_tree_add_item(tree, hf_zebra_nexthop4,
 450                                 tvb, offset, 4, FALSE);
 451                         offset += 4;
 452
 453                         proto_tree_add_item(tree, hf_zebra_metric,
 454                                 tvb, offset, 4, FALSE);
 455                         offset += 4;
 456                         break;
 457                 case ZEBRA_IPV6_NEXTHOP_LOOKUP:
 458                         /* Not yet implemeted in ZEBRA */
 459                         break;
 460         }
 461 }
 462
 463 static void
 464 dissect_zebra(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 465 {
 466         proto_item      *ti;
 467         proto_tree      *zebra_tree;
 468         gboolean        request;
 469         int             left, offset;
 470
 471         if (check_col(pinfo->cinfo, COL_PROTOCOL))
 472                 col_set_str(pinfo->cinfo, COL_PROTOCOL, "ZEBRA");
 473
 474         request = (pinfo->destport == pinfo->match_port);
 475         left = tvb_reported_length(tvb);
 476         offset = 0;
 477
 478         if (check_col(pinfo->cinfo, COL_INFO)) {
 479                 col_set_str(pinfo->cinfo, COL_INFO,
 480                         request? "ZEBRA Request" : "ZEBRA Reply");
 481         }
 482         if (tree) {
 483                 ti = proto_tree_add_item(tree, proto_zebra, tvb, offset, -1,
 484                         FALSE);
 485                 zebra_tree = proto_item_add_subtree(ti, ett_zebra);
 486                 proto_tree_add_boolean_hidden(zebra_tree, hf_zebra_request,
 487                         tvb, offset, 0, request);
 488
 489                 for (;;) {
 490                         guint8          command;
 491                         guint16         len;
 492                         proto_tree      *zebra_request_tree;
 493
 494                         if (left < 3) break;
 495
 496                         len = tvb_get_ntohs(tvb, offset);
 497                         if (len < 3) break;
 498
 499                         command = tvb_get_guint8(tvb, offset+2);
 500
 501                         ti = proto_tree_add_uint(zebra_tree,
 502                                 hf_zebra_command, tvb, offset, len,
 503                                 command);
 504                         zebra_request_tree = proto_item_add_subtree(ti,
 505                                 ett_zebra_request);
 506                         dissect_zebra_request(zebra_request_tree, request, tvb,
 507                                 offset, len, command);
 508
 509                         offset += len;
 510                         left -= len;
 511                 }
 512         }
 513 }
 514
 515 void
 516 proto_register_zebra(void)
 517 {
 518
 519   static hf_register_info hf[] = {
 520     { &hf_zebra_len,
 521       { "Length",               "zebra.len",
 522         FT_UINT16, BASE_DEC, NULL, 0x0,
 523         "Length of ZEBRA request", HFILL }},
 524     { &hf_zebra_request,
 525       { "Request",              "zebra.request",
 526         FT_BOOLEAN, BASE_NONE, NULL, 0x0,
 527         "TRUE if ZEBRA request", HFILL }},
 528     { &hf_zebra_command,
 529       { "Command",              "zebra.command",
 530         FT_UINT8, BASE_DEC, VALS(messages), 0x0,
 531         "ZEBRA command", HFILL }},
 532     { &hf_zebra_interface,
 533       { "Interface",            "zebra.interface",
 534         FT_STRING, BASE_NONE, NULL, 0x0,
 535         "Interface name of ZEBRA request", HFILL }},
 536     { &hf_zebra_index,
 537       { "Index",                "zebra.index",
 538         FT_UINT32, BASE_DEC, NULL, 0x0,
 539         "Index of interface", HFILL }},
 540     { &hf_zebra_indexnum,
 541       { "Index Number",         "zebra.indexnum",
 542         FT_UINT8, BASE_DEC, NULL, 0x0,
 543         "Number of indices for route", HFILL }},
 544     { &hf_zebra_intflags,
 545       { "Flags",                "zebra.intflags",
 546         FT_UINT32, BASE_DEC, NULL, 0x0,
 547         "Flags of interface", HFILL }},
 548     { &hf_zebra_rtflags,
 549       { "Flags",                "zebra.rtflags",
 550         FT_UINT8, BASE_DEC, NULL, 0x0,
 551         "Flags of route", HFILL }},
 552     { &hf_zebra_message,
 553       { "Message",              "zebra.message",
 554         FT_UINT8, BASE_DEC, NULL, 0x0,
 555         "Message type of route", HFILL }},
 556     { &hf_zebra_msg_nexthop,
 557       { "Message Nexthop",      "zebra.message.nexthop",
 558         FT_BOOLEAN, 8, NULL, ZEBRA_ZAPI_MESSAGE_NEXTHOP,
 559         "Message contains nexthop", HFILL }},
 560     { &hf_zebra_msg_index,
 561       { "Message Index",        "zebra.message.index",
 562         FT_BOOLEAN, 8, NULL, ZEBRA_ZAPI_MESSAGE_IFINDEX,
 563         "Message contains index", HFILL }},
 564     { &hf_zebra_msg_distance,
 565       { "Message Distance",     "zebra.message.distance",
 566         FT_BOOLEAN, 8, NULL, ZEBRA_ZAPI_MESSAGE_DISTANCE,
 567         "Message contains distance", HFILL }},
 568     { &hf_zebra_msg_metric,
 569       { "Message Metric",       "zebra.message.metric",
 570         FT_BOOLEAN, 8, NULL, ZEBRA_ZAPI_MESSAGE_METRIC,
 571         "Message contains metric", HFILL }},
 572     { &hf_zebra_type,
 573       { "Type",                 "zebra.type",
 574         FT_UINT8, BASE_DEC, VALS(routes), 0x0,
 575         "Type of route", HFILL }},
 576     { &hf_zebra_distance,
 577       { "Distance",             "zebra.distance",
 578         FT_UINT8, BASE_DEC, NULL, 0x0,
 579         "Distance of route", HFILL }},
 580     { &hf_zebra_metric,
 581       { "Metric",               "zebra.metric",
 582         FT_UINT32, BASE_DEC, NULL, 0x0,
 583         "Metric of interface or route", HFILL }},
 584     { &hf_zebra_mtu,
 585       { "MTU",                  "zebra.mtu",
 586         FT_UINT32, BASE_DEC, NULL, 0x0,
 587         "MTU of interface", HFILL }},
 588     { &hf_zebra_bandwidth,
 589       { "Bandwidth",            "zebra.bandwidth",
 590         FT_UINT32, BASE_DEC, NULL, 0x0,
 591         "Bandwidth of interface", HFILL }},
 592     { &hf_zebra_family,
 593       { "Family",               "zebra.family",
 594         FT_UINT32, BASE_DEC, NULL, 0x0,
 595         "Family of IP address", HFILL }},
 596     { &hf_zebra_dest4,
 597       { "Destination",          "zebra.dest4",
 598         FT_IPv4, BASE_NONE, NULL, 0x0,
 599         "Destination IPv4 field", HFILL }},
 600     { &hf_zebra_dest6,
 601       { "Destination",          "zebra.dest6",
 602         FT_IPv6, BASE_NONE, NULL, 0x0,
 603         "Destination IPv6 field", HFILL }},
 604     { &hf_zebra_nexthopnum,
 605       { "Nexthop Number",       "zebra.nexthopnum",
 606         FT_UINT8, BASE_DEC, NULL, 0x0,
 607         "Number of nexthops in route", HFILL }},
 608     { &hf_zebra_nexthop4,
 609       { "Nexthop",              "zebra.nexthop4",
 610         FT_IPv4, BASE_NONE, NULL, 0x0,
 611         "Nethop IPv4 field of route", HFILL }},
 612     { &hf_zebra_nexthop6,
 613       { "Nexthop",              "zebra.nexthop6",
 614         FT_IPv6, BASE_NONE, NULL, 0x0,
 615         "Nethop IPv6 field of route", HFILL }},
 616     { &hf_zebra_prefixlen,
 617       { "Prefix length",        "zebra.prefixlen",
 618         FT_UINT32, BASE_DEC, NULL, 0x0,
 619         "Prefix length", HFILL }},
 620     { &hf_zebra_prefix4,
 621       { "Prefix",               "zebra.prefix4",
 622         FT_IPv4, BASE_NONE, NULL, 0x0,
 623         "Prefix IPv4", HFILL }},
 624     { &hf_zebra_prefix6,
 625       { "Prefix",               "zebra.prefix6",
 626         FT_IPv6, BASE_NONE, NULL, 0x0,
 627         "Prefix IPv6", HFILL }},
 628   };
 629
 630   static gint *ett[] = {
 631     &ett_zebra,
 632     &ett_zebra_request,
 633     &ett_message,
 634   };
 635
 636   proto_zebra = proto_register_protocol("Zebra Protocol", "ZEBRA", "zebra");
 637   proto_register_field_array(proto_zebra, hf, array_length(hf));
 638   proto_register_subtree_array(ett, array_length(ett));
 639 }
 640
 641 void
 642 proto_reg_handoff_zebra(void)
 643 {
 644   dissector_handle_t zebra_handle;
 645
 646   zebra_handle = create_dissector_handle(dissect_zebra, proto_zebra);
 647   dissector_add("tcp.port", TCP_PORT_ZEBRA, zebra_handle);
 648 }