pbrd/pbr_vty.c

   1 /*
   2  * PBR - vty code
   3  * Copyright (C) 2018 Cumulus Networks, Inc.
   4  *               Donald Sharp
   5  *
   6  * FRR is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2, or (at your option) any
   9  * later version.
  10  *
  11  * FRR is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; see the file COPYING; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20 #include <zebra.h>
  21
  22 #include "vty.h"
  23 #include "command.h"
  24 #include "prefix.h"
  25 #include "vrf.h"
  26 #include "nexthop.h"
  27 #include "nexthop_group.h"
  28 #include "log.h"
  29 #include "json.h"
  30 #include "debug.h"
  31
  32 #include "pbrd/pbr_nht.h"
  33 #include "pbrd/pbr_map.h"
  34 #include "pbrd/pbr_zebra.h"
  35 #include "pbrd/pbr_vty.h"
  36 #include "pbrd/pbr_debug.h"
  37 #ifndef VTYSH_EXTRACT_PL
  38 #include "pbrd/pbr_vty_clippy.c"
  39 #endif
  40
  41 DEFUN_NOSH(pbr_map, pbr_map_cmd, "pbr-map WORD seq (1-700)",
  42            "Create pbr-map or enter pbr-map command mode\n"
  43            "The name of the PBR MAP\n"
  44            "Sequence to insert in existing pbr-map entry\n"
  45            "Sequence number\n")
  46 {
  47         const char *pbrm_name = argv[1]->arg;
  48         uint32_t seqno = atoi(argv[3]->arg);
  49         struct pbr_map_sequence *pbrms;
  50
  51         pbrms = pbrms_get(pbrm_name, seqno);
  52         VTY_PUSH_CONTEXT(PBRMAP_NODE, pbrms);
  53
  54         return CMD_SUCCESS;
  55 }
  56
  57 DEFUN_NOSH(no_pbr_map, no_pbr_map_cmd, "no pbr-map WORD [seq (1-700)]",
  58            NO_STR
  59            "Delete pbr-map\n"
  60            "The name of the PBR MAP\n"
  61            "Sequence to delete from existing pbr-map entry\n"
  62            "Sequence number\n")
  63 {
  64         const char *pbrm_name = argv[2]->arg;
  65         uint32_t seqno = 0;
  66         struct pbr_map *pbrm = pbrm_find(pbrm_name);
  67         struct pbr_map_sequence *pbrms;
  68         struct listnode *node, *next_node;
  69
  70         if (argc > 3)
  71                 seqno = atoi(argv[4]->arg);
  72
  73         if (!pbrm) {
  74                 vty_out(vty, "pbr-map %s not found\n", pbrm_name);
  75                 return CMD_SUCCESS;
  76         }
  77
  78         for (ALL_LIST_ELEMENTS(pbrm->seqnumbers, node, next_node, pbrms)) {
  79                 if (seqno && pbrms->seqno != seqno)
  80                         continue;
  81
  82                 pbr_map_delete(pbrms);
  83         }
  84
  85         return CMD_SUCCESS;
  86 }
  87
  88 DEFPY(pbr_map_match_src, pbr_map_match_src_cmd,
  89         "[no] match src-ip <A.B.C.D/M|X:X::X:X/M>$prefix",
  90         NO_STR
  91         "Match the rest of the command\n"
  92         "Choose the src ip or ipv6 prefix to use\n"
  93         "v4 Prefix\n"
  94         "v6 Prefix\n")
  95 {
  96         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
  97
  98         pbrms->family = prefix->family;
  99
 100         if (!no) {
 101                 if (prefix_same(pbrms->src, prefix))
 102                         return CMD_SUCCESS;
 103
 104                 if (!pbrms->src)
 105                         pbrms->src = prefix_new();
 106                 prefix_copy(pbrms->src, prefix);
 107         } else {
 108                 prefix_free(pbrms->src);
 109                 pbrms->src = 0;
 110         }
 111
 112         pbr_map_check(pbrms);
 113
 114         return CMD_SUCCESS;
 115 }
 116
 117 DEFPY(pbr_map_match_dst, pbr_map_match_dst_cmd,
 118         "[no] match dst-ip <A.B.C.D/M|X:X::X:X/M>$prefix",
 119         NO_STR
 120         "Match the rest of the command\n"
 121         "Choose the src ip or ipv6 prefix to use\n"
 122         "v4 Prefix\n"
 123         "v6 Prefix\n")
 124 {
 125         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
 126
 127         pbrms->family = prefix->family;
 128
 129         if (!no) {
 130                 if (prefix_same(pbrms->dst, prefix))
 131                         return CMD_SUCCESS;
 132
 133                 if (!pbrms->dst)
 134                         pbrms->dst = prefix_new();
 135                 prefix_copy(pbrms->dst, prefix);
 136         } else {
 137                 prefix_free(pbrms->dst);
 138                 pbrms->dst = NULL;
 139         }
 140
 141         pbr_map_check(pbrms);
 142
 143         return CMD_SUCCESS;
 144 }
 145
 146 DEFPY(pbr_map_nexthop_group, pbr_map_nexthop_group_cmd,
 147         "[no] set nexthop-group NAME$name",
 148         NO_STR
 149         "Set for the PBR-MAP\n"
 150         "nexthop-group to use\n"
 151         "The name of the nexthop-group\n")
 152 {
 153         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
 154         struct nexthop_group_cmd *nhgc;
 155
 156         if (pbrms->nhg) {
 157                 vty_out(vty,
 158                         "A `set nexthop XX` command already exists, please remove that first\n");
 159                 return CMD_WARNING_CONFIG_FAILED;
 160         }
 161
 162         nhgc = nhgc_find(name);
 163         if (!nhgc) {
 164                 vty_out(vty, "Specified nexthop-group %s does not exist\n",
 165                         name);
 166                 vty_out(vty, "PBR-MAP will not be applied until it is created\n");
 167         }
 168
 169         if (no) {
 170                 if (pbrms->nhgrp_name && strcmp(name, pbrms->nhgrp_name) == 0)
 171                         pbr_map_delete_nexthop_group(pbrms);
 172                 else {
 173                         vty_out(vty,
 174                                 "Nexthop Group specified: %s does not exist to remove",
 175                                 name);
 176                         return CMD_WARNING_CONFIG_FAILED;
 177                 }
 178         } else {
 179                 if (pbrms->nhgrp_name) {
 180                         if (strcmp(name, pbrms->nhgrp_name) != 0) {
 181                                 vty_out(vty,
 182                                         "Please delete current nexthop group before modifying current one");
 183                                 return CMD_WARNING_CONFIG_FAILED;
 184                         }
 185
 186                         return CMD_SUCCESS;
 187                 }
 188                 pbrms->nhgrp_name = XSTRDUP(MTYPE_TMP, name);
 189                 pbr_map_check(pbrms);
 190         }
 191
 192         return CMD_SUCCESS;
 193 }
 194
 195 DEFPY(pbr_map_nexthop, pbr_map_nexthop_cmd,
 196       "[no] set nexthop <A.B.C.D|X:X::X:X>$addr [INTERFACE]$intf [nexthop-vrf NAME$name]",
 197       NO_STR
 198       "Set for the PBR-MAP\n"
 199       "Specify one of the nexthops in this map\n"
 200       "v4 Address\n"
 201       "v6 Address\n"
 202       "Interface to use\n"
 203       "If the nexthop is in a different vrf tell us\n"
 204       "The nexthop-vrf Name\n")
 205 {
 206         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
 207         struct vrf *vrf;
 208         struct nexthop nhop;
 209         struct nexthop *nh;
 210
 211         if (pbrms->nhgrp_name) {
 212                 vty_out(vty,
 213                         "Please unconfigure the nexthop group before adding an individual nexthop");
 214                 return CMD_WARNING_CONFIG_FAILED;
 215         }
 216
 217         if (name)
 218                 vrf = vrf_lookup_by_name(name);
 219         else
 220                 vrf = vrf_lookup_by_id(VRF_DEFAULT);
 221
 222         if (!vrf) {
 223                 vty_out(vty, "Specified: %s is non-existent\n", name);
 224                 return CMD_WARNING_CONFIG_FAILED;
 225         }
 226
 227         memset(&nhop, 0, sizeof(nhop));
 228         nhop.vrf_id = vrf->vrf_id;
 229
 230         /*
 231          * Make SA happy.  CLIPPY is not going to give us a NULL
 232          * addr.
 233          */
 234         assert(addr);
 235         if (addr->sa.sa_family == AF_INET) {
 236                 nhop.gate.ipv4.s_addr = addr->sin.sin_addr.s_addr;
 237                 if (intf) {
 238                         nhop.type = NEXTHOP_TYPE_IPV4_IFINDEX;
 239                         nhop.ifindex = ifname2ifindex(intf, vrf->vrf_id);
 240                         if (nhop.ifindex == IFINDEX_INTERNAL) {
 241                                 vty_out(vty,
 242                                         "Specified Intf %s does not exist in vrf: %s\n",
 243                                         intf, vrf->name);
 244                                 return CMD_WARNING_CONFIG_FAILED;
 245                         }
 246                 } else
 247                         nhop.type = NEXTHOP_TYPE_IPV4;
 248         } else {
 249                 memcpy(&nhop.gate.ipv6, &addr->sin6.sin6_addr, 16);
 250                 if (intf) {
 251                         nhop.type = NEXTHOP_TYPE_IPV6_IFINDEX;
 252                         nhop.ifindex = ifname2ifindex(intf, vrf->vrf_id);
 253                         if (nhop.ifindex == IFINDEX_INTERNAL) {
 254                                 vty_out(vty,
 255                                         "Specified Intf %s does not exist in vrf: %s\n",
 256                                         intf, vrf->name);
 257                                 return CMD_WARNING_CONFIG_FAILED;
 258                         }
 259                 } else {
 260                         if (IN6_IS_ADDR_LINKLOCAL(&nhop.gate.ipv6)) {
 261                                 vty_out(vty,
 262                                         "Specified a v6 LL with no interface, rejecting\n");
 263                                 return CMD_WARNING_CONFIG_FAILED;
 264                         }
 265                         nhop.type = NEXTHOP_TYPE_IPV6;
 266                 }
 267         }
 268
 269         if (pbrms->nhg)
 270                 nh = nexthop_exists(pbrms->nhg, &nhop);
 271         else {
 272                 char buf[PBR_NHC_NAMELEN];
 273
 274                 if (no) {
 275                         vty_out(vty, "No nexthops to delete");
 276                         return CMD_WARNING_CONFIG_FAILED;
 277                 }
 278
 279                 pbrms->nhg = nexthop_group_new();
 280                 pbrms->internal_nhg_name =
 281                         XSTRDUP(MTYPE_TMP,
 282                                 pbr_nht_nexthop_make_name(pbrms->parent->name,
 283                                                           PBR_NHC_NAMELEN,
 284                                                           pbrms->seqno,
 285                                                           buf));
 286                 nh = NULL;
 287         }
 288
 289         if (no) {
 290                 if (nh)
 291                         pbr_nht_delete_individual_nexthop(pbrms);
 292         } else if (!nh) {
 293
 294                 if (pbrms->nhg->nexthop) {
 295                         vty_out(vty,
 296                                 "If you would like more than one nexthop please use nexthop-groups");
 297                         return CMD_WARNING_CONFIG_FAILED;
 298                 }
 299
 300                 /* must be adding new nexthop since !no and !nexthop_exists */
 301                 nh = nexthop_new();
 302
 303                 memcpy(nh, &nhop, sizeof(nhop));
 304                 nexthop_add(&pbrms->nhg->nexthop, nh);
 305
 306                 pbr_nht_add_individual_nexthop(pbrms);
 307                 pbr_map_check(pbrms);
 308         }
 309
 310         return CMD_SUCCESS;
 311 }
 312
 313 DEFPY (pbr_policy,
 314         pbr_policy_cmd,
 315         "[no] pbr-policy NAME$mapname",
 316         NO_STR
 317         "Policy to use\n"
 318         "Name of the pbr-map to apply\n")
 319 {
 320         VTY_DECLVAR_CONTEXT(interface, ifp);
 321         struct pbr_map *pbrm, *old_pbrm;
 322         struct pbr_interface *pbr_ifp = ifp->info;
 323
 324         pbrm = pbrm_find(mapname);
 325
 326         if (!pbr_ifp) {
 327                 /* we don't want one and we don't have one, so... */
 328                 if (no)
 329                         return CMD_SUCCESS;
 330
 331                 /* Some one could have fat fingered the interface name */
 332                 pbr_ifp = pbr_if_new(ifp);
 333         }
 334
 335         if (no) {
 336                 if (strcmp(pbr_ifp->mapname, mapname) == 0) {
 337                         pbr_ifp->mapname[0] = '\0';
 338                         if (pbrm)
 339                                 pbr_map_interface_delete(pbrm, ifp);
 340                 }
 341         } else {
 342                 if (strcmp(pbr_ifp->mapname, "") != 0) {
 343                         old_pbrm = pbrm_find(pbr_ifp->mapname);
 344                         if (old_pbrm)
 345                                 pbr_map_interface_delete(old_pbrm, ifp);
 346                 }
 347                 snprintf(pbr_ifp->mapname, sizeof(pbr_ifp->mapname),
 348                          "%s", mapname);
 349                 if (pbrm)
 350                         pbr_map_add_interface(pbrm, ifp);
 351         }
 352
 353         return CMD_SUCCESS;
 354 }
 355
 356 DEFPY (show_pbr,
 357         show_pbr_cmd,
 358         "show pbr [json$json]",
 359         SHOW_STR
 360         "Policy Based Routing\n"
 361         JSON_STR)
 362 {
 363         pbr_nht_write_table_range(vty);
 364         pbr_nht_write_rule_range(vty);
 365
 366         return CMD_SUCCESS;
 367 }
 368
 369 DEFPY (show_pbr_map,
 370         show_pbr_map_cmd,
 371         "show pbr map [NAME$name] [detail$detail] [json$json]",
 372         SHOW_STR
 373         "Policy Based Routing\n"
 374         "PBR Map\n"
 375         "PBR Map Name\n"
 376         "Detailed information\n"
 377         JSON_STR)
 378 {
 379         struct pbr_map_sequence *pbrms;
 380         struct pbr_map *pbrm;
 381         struct listnode *node;
 382         char buf[PREFIX_STRLEN];
 383         char rbuf[64];
 384
 385         RB_FOREACH (pbrm, pbr_map_entry_head, &pbr_maps) {
 386                 if (name && strcmp(name, pbrm->name) != 0)
 387                         continue;
 388
 389                 vty_out(vty, "  pbr-map %s valid: %d\n", pbrm->name,
 390                         pbrm->valid);
 391
 392                 for (ALL_LIST_ELEMENTS_RO(pbrm->seqnumbers, node, pbrms)) {
 393                         if (pbrms->reason)
 394                                 pbr_map_reason_string(pbrms->reason, rbuf,
 395                                                       sizeof(rbuf));
 396                         vty_out(vty,
 397                                 "    Seq: %u rule: %u Installed: %" PRIu64 "(%u) Reason: %s\n",
 398                                 pbrms->seqno, pbrms->ruleno, pbrms->installed,
 399                                 pbrms->unique, pbrms->reason ? rbuf : "Valid");
 400
 401                         if (pbrms->src)
 402                                 vty_out(vty, "\tSRC Match: %s\n",
 403                                         prefix2str(pbrms->src, buf,
 404                                                    sizeof(buf)));
 405                         if (pbrms->dst)
 406                                 vty_out(vty, "\tDST Match: %s\n",
 407                                         prefix2str(pbrms->dst, buf,
 408                                                    sizeof(buf)));
 409
 410                         if (pbrms->nhgrp_name) {
 411                                 vty_out(vty,
 412                                         "\tNexthop-Group: %s(%u) Installed: %u(%d)\n",
 413                                         pbrms->nhgrp_name,
 414                                         pbr_nht_get_table(pbrms->nhgrp_name),
 415                                         pbrms->nhs_installed,
 416                                         pbr_nht_get_installed(
 417                                                 pbrms->nhgrp_name));
 418                         } else if (pbrms->nhg) {
 419                                 vty_out(vty, "     ");
 420                                 nexthop_group_write_nexthop(
 421                                         vty, pbrms->nhg->nexthop);
 422                                 vty_out(vty,
 423                                         "\tInstalled: %u(%d) Tableid: %d\n",
 424                                         pbrms->nhs_installed,
 425                                         pbr_nht_get_installed(
 426                                                 pbrms->internal_nhg_name),
 427                                         pbr_nht_get_table(
 428                                                 pbrms->internal_nhg_name));
 429                         } else {
 430                                 vty_out(vty,
 431                                         "\tNexthop-Group: Unknown Installed: 0(0)\n");
 432                         }
 433                 }
 434         }
 435         return CMD_SUCCESS;
 436 }
 437
 438 DEFPY(show_pbr_nexthop_group,
 439       show_pbr_nexthop_group_cmd,
 440       "show pbr nexthop-groups [WORD$word]",
 441       SHOW_STR
 442       "Policy Based Routing\n"
 443       "Nexthop Groups\n"
 444       "Optional Name of the nexthop group\n")
 445 {
 446         pbr_nht_show_nexthop_group(vty, word);
 447
 448         return CMD_SUCCESS;
 449 }
 450
 451 DEFPY (show_pbr_interface,
 452         show_pbr_interface_cmd,
 453         "show pbr interface [NAME$name] [json$json]",
 454         SHOW_STR
 455         "Policy Based Routing\n"
 456         "PBR Interface\n"
 457         "PBR Interface Name\n"
 458         JSON_STR)
 459 {
 460         struct interface *ifp;
 461         struct vrf *vrf;
 462         struct pbr_interface *pbr_ifp;
 463
 464         RB_FOREACH(vrf, vrf_name_head, &vrfs_by_name) {
 465                 FOR_ALL_INTERFACES(vrf, ifp) {
 466                         struct pbr_map *pbrm;
 467
 468                         if (!ifp->info)
 469                                 continue;
 470
 471                         if (name && strcmp(ifp->name, name) != 0)
 472                                 continue;
 473
 474                         pbr_ifp = ifp->info;
 475
 476                         if (strcmp(pbr_ifp->mapname, "") == 0)
 477                                 continue;
 478
 479                         pbrm = pbrm_find(pbr_ifp->mapname);
 480                         vty_out(vty, "  %s(%d) with pbr-policy %s", ifp->name,
 481                                 ifp->ifindex, pbr_ifp->mapname);
 482                         if (!pbrm)
 483                                 vty_out(vty, " (map doesn't exist)");
 484                         vty_out(vty, "\n");
 485                 }
 486         }
 487
 488         return CMD_SUCCESS;
 489 }
 490
 491 /* PBR debugging CLI ------------------------------------------------------- */
 492 /* clang-format off */
 493
 494 static struct cmd_node debug_node = {DEBUG_NODE, "", 1};
 495
 496 DEFPY(debug_pbr,
 497       debug_pbr_cmd,
 498       "[no] debug pbr [{map$map|zebra$zebra|nht$nht|events$events}]",
 499       NO_STR
 500       DEBUG_STR
 501       "Policy Based Routing\n"
 502       "Policy maps\n"
 503       "PBRD <-> Zebra communications\n"
 504       "Nexthop tracking\n"
 505       "Events\n")
 506 {
 507         uint32_t mode = DEBUG_NODE2MODE(vty->node);
 508
 509         if (map)
 510                 DEBUG_MODE_SET(&pbr_dbg_map, mode, !no);
 511         if (zebra)
 512                 DEBUG_MODE_SET(&pbr_dbg_zebra, mode, !no);
 513         if (nht)
 514                 DEBUG_MODE_SET(&pbr_dbg_nht, mode, !no);
 515         if (events)
 516                 DEBUG_MODE_SET(&pbr_dbg_event, mode, !no);
 517
 518         /* no specific debug --> act on all of them */
 519         if (strmatch(argv[argc - 1]->text, "pbr"))
 520                 pbr_debug_set_all(mode, !no);
 521
 522         return CMD_SUCCESS;
 523 }
 524
 525 DEFUN_NOSH(show_debugging_pbr,
 526            show_debugging_pbr_cmd,
 527            "show debugging [pbr]",
 528            SHOW_STR
 529            DEBUG_STR
 530            "Policy Based Routing\n")
 531 {
 532         vty_out(vty, "PBR debugging status:\n");
 533
 534         pbr_debug_config_write_helper(vty, false);
 535
 536         return CMD_SUCCESS;
 537 }
 538
 539 /* clang-format on */
 540 /* ------------------------------------------------------------------------- */
 541
 542
 543 static struct cmd_node interface_node = {
 544         INTERFACE_NODE, "%s(config-if)# ", 1 /* vtysh ? yes */
 545 };
 546
 547 static int pbr_interface_config_write(struct vty *vty)
 548 {
 549         struct interface *ifp;
 550         struct vrf *vrf;
 551
 552         RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
 553                 FOR_ALL_INTERFACES (vrf, ifp) {
 554                         if (vrf->vrf_id == VRF_DEFAULT)
 555                                 vty_frame(vty, "interface %s\n", ifp->name);
 556                         else
 557                                 vty_frame(vty, "interface %s vrf %s\n",
 558                                           ifp->name, vrf->name);
 559
 560                         pbr_map_write_interfaces(vty, ifp);
 561
 562                         vty_endframe(vty, "!\n");
 563                 }
 564         }
 565
 566         return 1;
 567 }
 568
 569 /* PBR map node structure. */
 570 static struct cmd_node pbr_map_node = {PBRMAP_NODE, "%s(config-pbr-map)# ", 1};
 571
 572 static int pbr_vty_map_config_write_sequence(struct vty *vty,
 573                                              struct pbr_map *pbrm,
 574                                              struct pbr_map_sequence *pbrms)
 575 {
 576         char buff[PREFIX_STRLEN];
 577
 578         vty_out(vty, "pbr-map %s seq %u\n", pbrm->name, pbrms->seqno);
 579
 580         if (pbrms->src)
 581                 vty_out(vty, "  match src-ip %s\n",
 582                         prefix2str(pbrms->src, buff, sizeof(buff)));
 583
 584         if (pbrms->dst)
 585                 vty_out(vty, "  match dst-ip %s\n",
 586                         prefix2str(pbrms->dst, buff, sizeof(buff)));
 587
 588         if (pbrms->nhgrp_name)
 589                 vty_out(vty, "  set nexthop-group %s\n", pbrms->nhgrp_name);
 590
 591         if (pbrms->nhg) {
 592                 vty_out(vty, "  set ");
 593                 nexthop_group_write_nexthop(vty, pbrms->nhg->nexthop);
 594         }
 595
 596         vty_out(vty, "!\n");
 597         return 1;
 598 }
 599
 600 static int pbr_vty_map_config_write(struct vty *vty)
 601 {
 602         struct pbr_map *pbrm;
 603
 604         pbr_nht_write_table_range(vty);
 605         pbr_nht_write_rule_range(vty);
 606
 607         RB_FOREACH(pbrm, pbr_map_entry_head, &pbr_maps) {
 608                 struct pbr_map_sequence *pbrms;
 609                 struct listnode *node;
 610
 611                 for (ALL_LIST_ELEMENTS_RO(pbrm->seqnumbers, node, pbrms))
 612                         pbr_vty_map_config_write_sequence(vty, pbrm, pbrms);
 613         }
 614
 615         return 1;
 616 }
 617
 618 void pbr_vty_init(void)
 619 {
 620         install_node(&interface_node,
 621                      pbr_interface_config_write);
 622         if_cmd_init();
 623
 624         install_node(&pbr_map_node,
 625                      pbr_vty_map_config_write);
 626
 627         /* debug */
 628         install_node(&debug_node, pbr_debug_config_write);
 629         install_element(VIEW_NODE, &debug_pbr_cmd);
 630         install_element(CONFIG_NODE, &debug_pbr_cmd);
 631         install_element(VIEW_NODE, &show_debugging_pbr_cmd);
 632
 633         install_default(PBRMAP_NODE);
 634
 635         install_element(CONFIG_NODE, &pbr_map_cmd);
 636         install_element(CONFIG_NODE, &no_pbr_map_cmd);
 637         install_element(INTERFACE_NODE, &pbr_policy_cmd);
 638         install_element(PBRMAP_NODE, &pbr_map_match_src_cmd);
 639         install_element(PBRMAP_NODE, &pbr_map_match_dst_cmd);
 640         install_element(PBRMAP_NODE, &pbr_map_nexthop_group_cmd);
 641         install_element(PBRMAP_NODE, &pbr_map_nexthop_cmd);
 642         install_element(VIEW_NODE, &show_pbr_cmd);
 643         install_element(VIEW_NODE, &show_pbr_map_cmd);
 644         install_element(VIEW_NODE, &show_pbr_interface_cmd);
 645         install_element(VIEW_NODE, &show_pbr_nexthop_group_cmd);
 646 }