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 "nexthop_group_private.h"
  29 #include "log.h"
  30 #include "debug.h"
  31 #include "pbr.h"
  32
  33 #include "pbrd/pbr_nht.h"
  34 #include "pbrd/pbr_map.h"
  35 #include "pbrd/pbr_zebra.h"
  36 #include "pbrd/pbr_vty.h"
  37 #include "pbrd/pbr_debug.h"
  38 #ifndef VTYSH_EXTRACT_PL
  39 #include "pbrd/pbr_vty_clippy.c"
  40 #endif
  41
  42 DEFUN_NOSH(pbr_map, pbr_map_cmd, "pbr-map PBRMAP seq (1-700)",
  43            "Create pbr-map or enter pbr-map command mode\n"
  44            "The name of the PBR MAP\n"
  45            "Sequence to insert in existing pbr-map entry\n"
  46            "Sequence number\n")
  47 {
  48         const char *pbrm_name = argv[1]->arg;
  49         uint32_t seqno = atoi(argv[3]->arg);
  50         struct pbr_map_sequence *pbrms;
  51
  52         pbrms = pbrms_get(pbrm_name, seqno);
  53         VTY_PUSH_CONTEXT(PBRMAP_NODE, pbrms);
  54
  55         return CMD_SUCCESS;
  56 }
  57
  58 DEFUN_NOSH(no_pbr_map, no_pbr_map_cmd, "no pbr-map PBRMAP [seq (1-700)]",
  59            NO_STR
  60            "Delete pbr-map\n"
  61            "The name of the PBR MAP\n"
  62            "Sequence to delete from existing pbr-map entry\n"
  63            "Sequence number\n")
  64 {
  65         const char *pbrm_name = argv[2]->arg;
  66         uint32_t seqno = 0;
  67         struct pbr_map *pbrm = pbrm_find(pbrm_name);
  68         struct pbr_map_sequence *pbrms;
  69         struct listnode *node, *next_node;
  70
  71         if (argc > 3)
  72                 seqno = atoi(argv[4]->arg);
  73
  74         if (!pbrm) {
  75                 vty_out(vty, "pbr-map %s not found\n", pbrm_name);
  76                 return CMD_SUCCESS;
  77         }
  78
  79         for (ALL_LIST_ELEMENTS(pbrm->seqnumbers, node, next_node, pbrms)) {
  80                 if (seqno && pbrms->seqno != seqno)
  81                         continue;
  82
  83                 pbr_map_delete(pbrms);
  84         }
  85
  86         return CMD_SUCCESS;
  87 }
  88
  89 DEFPY(pbr_set_table_range,
  90       pbr_set_table_range_cmd,
  91       "[no] pbr table range (10000-4294966272)$lb (10000-4294966272)$ub",
  92       NO_STR
  93       PBR_STR
  94       "Set table ID range\n"
  95       "Set table ID range\n"
  96       "Lower bound for table ID range\n"
  97       "Upper bound for table ID range\n")
  98 {
  99         /* upper bound is 2^32 - 2^10 */
 100         int ret = CMD_WARNING;
 101         const int minrange = 1000;
 102
 103         /* validate given bounds */
 104         if (lb > ub)
 105                 vty_out(vty, "%% Lower bound must be less than upper bound\n");
 106         else if (ub - lb < minrange)
 107                 vty_out(vty, "%% Range breadth must be at least %d\n", minrange);
 108         else {
 109                 ret = CMD_SUCCESS;
 110                 pbr_nht_set_tableid_range((uint32_t) lb, (uint32_t) ub);
 111         }
 112
 113         return ret;
 114 }
 115
 116
 117 DEFPY(pbr_map_match_src, pbr_map_match_src_cmd,
 118         "[no] match src-ip <A.B.C.D/M|X:X::X:X/M>$prefix",
 119         NO_STR
 120         "Match the rest of the command\n"
 121         "Choose the src ip or ipv6 prefix to use\n"
 122         "v4 Prefix\n"
 123         "v6 Prefix\n")
 124 {
 125         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
 126
 127         pbrms->family = prefix->family;
 128
 129         if (!no) {
 130                 if (pbrms->src && prefix_same(pbrms->src, prefix))
 131                         return CMD_SUCCESS;
 132                 else if (pbrms->src) {
 133                         vty_out(vty,
 134                                 "A `match src-ip XX` command already exists, please remove that first\n");
 135                         return CMD_WARNING_CONFIG_FAILED;
 136                 } else
 137                         pbrms->src = prefix_new();
 138                 prefix_copy(pbrms->src, prefix);
 139         } else
 140                 prefix_free(&pbrms->src);
 141
 142         pbr_map_check(pbrms);
 143
 144         return CMD_SUCCESS;
 145 }
 146
 147 DEFPY(pbr_map_match_dst, pbr_map_match_dst_cmd,
 148         "[no] match dst-ip <A.B.C.D/M|X:X::X:X/M>$prefix",
 149         NO_STR
 150         "Match the rest of the command\n"
 151         "Choose the dst ip or ipv6 prefix to use\n"
 152         "v4 Prefix\n"
 153         "v6 Prefix\n")
 154 {
 155         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
 156
 157         pbrms->family = prefix->family;
 158
 159         if (!no) {
 160                 if (pbrms->dst && prefix_same(pbrms->dst, prefix))
 161                         return CMD_SUCCESS;
 162                 else if (pbrms->dst) {
 163                         vty_out(vty,
 164                                 "A `match dst-ip XX` command already exists, please remove that first\n");
 165                         return CMD_WARNING_CONFIG_FAILED;
 166                 } else
 167                         pbrms->dst = prefix_new();
 168                 prefix_copy(pbrms->dst, prefix);
 169         } else
 170                 prefix_free(&pbrms->dst);
 171
 172         pbr_map_check(pbrms);
 173
 174         return CMD_SUCCESS;
 175 }
 176
 177 DEFPY(pbr_map_match_mark, pbr_map_match_mark_cmd,
 178         "[no] match mark (1-4294967295)$mark",
 179         NO_STR
 180         "Match the rest of the command\n"
 181         "Choose the mark value to use\n"
 182         "mark\n")
 183 {
 184         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
 185
 186 #ifndef GNU_LINUX
 187         vty_out(vty, "pbr marks are not supported on this platform");
 188         return CMD_WARNING_CONFIG_FAILED;
 189 #endif
 190
 191         if (!no) {
 192                 if (pbrms->mark && pbrms->mark == (uint32_t)mark)
 193                         return CMD_SUCCESS;
 194                 else if (pbrms->mark) {
 195                         vty_out(vty,
 196                                 "A `match mark XX` command already exists, please remove that first\n");
 197                         return CMD_WARNING_CONFIG_FAILED;
 198                 } else
 199                         pbrms->mark = (uint32_t)mark;
 200         } else {
 201                 pbrms->mark = 0;
 202         }
 203
 204         pbr_map_check(pbrms);
 205
 206         return CMD_SUCCESS;
 207 }
 208
 209 #define SET_VRF_EXISTS_STR                                                     \
 210         "A `set vrf XX` command already exists, please remove that first\n"
 211
 212 DEFPY(pbr_map_nexthop_group, pbr_map_nexthop_group_cmd,
 213       "[no] set nexthop-group NHGNAME$name",
 214       NO_STR
 215       "Set for the PBR-MAP\n"
 216       "nexthop-group to use\n"
 217       "The name of the nexthop-group\n")
 218 {
 219         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
 220         struct nexthop_group_cmd *nhgc;
 221
 222         if (pbrms->nhg) {
 223                 vty_out(vty,
 224                         "A `set nexthop XX` command already exists, please remove that first\n");
 225                 return CMD_WARNING_CONFIG_FAILED;
 226         }
 227
 228         if (pbrms->vrf_lookup || pbrms->vrf_unchanged) {
 229                 vty_out(vty, SET_VRF_EXISTS_STR);
 230                 return CMD_WARNING_CONFIG_FAILED;
 231         }
 232
 233         nhgc = nhgc_find(name);
 234         if (!nhgc) {
 235                 vty_out(vty, "Specified nexthop-group %s does not exist\n",
 236                         name);
 237                 vty_out(vty,
 238                         "PBR-MAP will not be applied until it is created\n");
 239         }
 240
 241         if (no) {
 242                 if (pbrms->nhgrp_name && strcmp(name, pbrms->nhgrp_name) == 0)
 243                         pbr_map_delete_nexthops(pbrms);
 244                 else {
 245                         vty_out(vty,
 246                                 "Nexthop Group specified: %s does not exist to remove\n",
 247                                 name);
 248                         return CMD_WARNING_CONFIG_FAILED;
 249                 }
 250         } else {
 251                 if (pbrms->nhgrp_name) {
 252                         if (strcmp(name, pbrms->nhgrp_name) != 0) {
 253                                 vty_out(vty,
 254                                         "Please delete current nexthop group before modifying current one\n");
 255                                 return CMD_WARNING_CONFIG_FAILED;
 256                         }
 257
 258                         return CMD_SUCCESS;
 259                 }
 260                 pbrms->nhgrp_name = XSTRDUP(MTYPE_TMP, name);
 261                 pbr_map_check(pbrms);
 262         }
 263
 264         return CMD_SUCCESS;
 265 }
 266
 267 DEFPY(pbr_map_nexthop, pbr_map_nexthop_cmd,
 268       "[no] set nexthop\
 269         <\
 270           <A.B.C.D|X:X::X:X>$addr [INTERFACE$intf]\
 271           |INTERFACE$intf\
 272         >\
 273         [nexthop-vrf NAME$vrf_name]",
 274       NO_STR
 275       "Set for the PBR-MAP\n"
 276       "Specify one of the nexthops in this map\n"
 277       "v4 Address\n"
 278       "v6 Address\n"
 279       "Interface to use\n"
 280       "Interface to use\n"
 281       "If the nexthop is in a different vrf tell us\n"
 282       "The nexthop-vrf Name\n")
 283 {
 284         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
 285         struct vrf *vrf;
 286         struct nexthop nhop;
 287         struct nexthop *nh;
 288
 289         if (pbrms->nhgrp_name) {
 290                 vty_out(vty,
 291                         "Please unconfigure the nexthop group before adding an individual nexthop\n");
 292                 return CMD_WARNING_CONFIG_FAILED;
 293         }
 294
 295         if (pbrms->vrf_lookup || pbrms->vrf_unchanged) {
 296                 vty_out(vty, SET_VRF_EXISTS_STR);
 297                 return CMD_WARNING_CONFIG_FAILED;
 298         }
 299
 300         if (vrf_name)
 301                 vrf = vrf_lookup_by_name(vrf_name);
 302         else
 303                 vrf = vrf_lookup_by_id(VRF_DEFAULT);
 304
 305         if (!vrf) {
 306                 vty_out(vty, "Specified: %s is non-existent\n", vrf_name);
 307                 return CMD_WARNING_CONFIG_FAILED;
 308         }
 309
 310         memset(&nhop, 0, sizeof(nhop));
 311         nhop.vrf_id = vrf->vrf_id;
 312
 313         if (intf) {
 314                 nhop.ifindex = ifname2ifindex(intf, vrf->vrf_id);
 315                 if (nhop.ifindex == IFINDEX_INTERNAL) {
 316                         vty_out(vty,
 317                                 "Specified Intf %s does not exist in vrf: %s\n",
 318                                 intf, vrf->name);
 319                         return CMD_WARNING_CONFIG_FAILED;
 320                 }
 321         }
 322
 323         if (addr) {
 324                 if (addr->sa.sa_family == AF_INET) {
 325                         nhop.gate.ipv4.s_addr = addr->sin.sin_addr.s_addr;
 326                         if (intf)
 327                                 nhop.type = NEXTHOP_TYPE_IPV4_IFINDEX;
 328                         else
 329                                 nhop.type = NEXTHOP_TYPE_IPV4;
 330                 } else {
 331                         nhop.gate.ipv6 = addr->sin6.sin6_addr;
 332                         if (intf)
 333                                 nhop.type = NEXTHOP_TYPE_IPV6_IFINDEX;
 334                         else {
 335                                 if (IN6_IS_ADDR_LINKLOCAL(&nhop.gate.ipv6)) {
 336                                         vty_out(vty,
 337                                                 "Specified a v6 LL with no interface, rejecting\n");
 338                                         return CMD_WARNING_CONFIG_FAILED;
 339                                 }
 340                                 nhop.type = NEXTHOP_TYPE_IPV6;
 341                         }
 342                 }
 343         } else
 344                 nhop.type = NEXTHOP_TYPE_IFINDEX;
 345
 346         if (pbrms->nhg)
 347                 nh = nexthop_exists(pbrms->nhg, &nhop);
 348         else {
 349                 char buf[PBR_NHC_NAMELEN];
 350
 351                 if (no) {
 352                         vty_out(vty, "No nexthops to delete\n");
 353                         return CMD_WARNING_CONFIG_FAILED;
 354                 }
 355
 356                 pbrms->nhg = nexthop_group_new();
 357                 pbrms->internal_nhg_name =
 358                         XSTRDUP(MTYPE_TMP,
 359                                 pbr_nht_nexthop_make_name(pbrms->parent->name,
 360                                                           PBR_NHC_NAMELEN,
 361                                                           pbrms->seqno,
 362                                                           buf));
 363                 nh = NULL;
 364         }
 365
 366         if (no) {
 367                 if (nh)
 368                         pbr_nht_delete_individual_nexthop(pbrms);
 369         } else if (!nh) {
 370
 371                 if (pbrms->nhg->nexthop) {
 372                         vty_out(vty,
 373                                 "If you would like more than one nexthop please use nexthop-groups\n");
 374                         return CMD_WARNING_CONFIG_FAILED;
 375                 }
 376
 377                 /* must be adding new nexthop since !no and !nexthop_exists */
 378                 nh = nexthop_new();
 379
 380                 memcpy(nh, &nhop, sizeof(nhop));
 381                 _nexthop_add(&pbrms->nhg->nexthop, nh);
 382
 383                 pbr_nht_add_individual_nexthop(pbrms);
 384                 pbr_map_check(pbrms);
 385         }
 386
 387         if (nhop.type == NEXTHOP_TYPE_IFINDEX
 388             || (nhop.type == NEXTHOP_TYPE_IPV6_IFINDEX
 389                 && IN6_IS_ADDR_LINKLOCAL(&nhop.gate.ipv6))) {
 390                 struct interface *ifp;
 391
 392                 ifp = if_lookup_by_index(nhop.ifindex, nhop.vrf_id);
 393                 if (ifp)
 394                         pbr_nht_nexthop_interface_update(ifp);
 395         }
 396
 397         return CMD_SUCCESS;
 398 }
 399
 400 DEFPY(pbr_map_vrf, pbr_map_vrf_cmd,
 401       "[no] set vrf <NAME$vrf_name|unchanged>",
 402       NO_STR
 403       "Set for the PBR-MAP\n"
 404       "Specify the VRF for this map\n"
 405       "The VRF Name\n"
 406       "Use the interface's VRF for lookup\n")
 407 {
 408         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
 409         int ret = CMD_SUCCESS;
 410
 411         if (no) {
 412                 pbr_map_delete_vrf(pbrms);
 413
 414                 /* Reset all data */
 415                 pbrms->nhs_installed = false;
 416                 pbrms->vrf_name[0] = '\0';
 417                 pbrms->vrf_lookup = false;
 418                 pbrms->vrf_unchanged = false;
 419
 420                 goto done;
 421         }
 422
 423         if (pbrms->nhgrp_name || pbrms->nhg) {
 424                 vty_out(vty,
 425                         "A `set nexthop/nexthop-group XX` command already exits, please remove that first\n");
 426                 ret = CMD_WARNING_CONFIG_FAILED;
 427                 goto done;
 428         }
 429
 430         if (pbrms->vrf_lookup || pbrms->vrf_unchanged) {
 431                 vty_out(vty, SET_VRF_EXISTS_STR);
 432                 ret = CMD_WARNING_CONFIG_FAILED;
 433                 goto done;
 434         }
 435
 436         if (vrf_name) {
 437                 if (!pbr_vrf_lookup_by_name(vrf_name)) {
 438                         vty_out(vty, "Specified: %s is non-existent\n",
 439                                 vrf_name);
 440                         ret = CMD_WARNING_CONFIG_FAILED;
 441                         goto done;
 442                 }
 443
 444                 pbrms->vrf_lookup = true;
 445                 strlcpy(pbrms->vrf_name, vrf_name, sizeof(pbrms->vrf_name));
 446         } else
 447                 pbrms->vrf_unchanged = true;
 448
 449         pbr_map_check(pbrms);
 450
 451 done:
 452         return ret;
 453 }
 454
 455 DEFPY (pbr_policy,
 456         pbr_policy_cmd,
 457         "[no] pbr-policy PBRMAP$mapname",
 458         NO_STR
 459         "Policy to use\n"
 460         "Name of the pbr-map to apply\n")
 461 {
 462         VTY_DECLVAR_CONTEXT(interface, ifp);
 463         struct pbr_map *pbrm, *old_pbrm;
 464         struct pbr_interface *pbr_ifp = ifp->info;
 465
 466         old_pbrm = NULL;
 467         pbrm = pbrm_find(mapname);
 468
 469         if (!pbr_ifp) {
 470                 /* we don't want one and we don't have one, so... */
 471                 if (no)
 472                         return CMD_SUCCESS;
 473
 474                 /* Some one could have fat fingered the interface name */
 475                 pbr_ifp = pbr_if_new(ifp);
 476         }
 477
 478         if (no) {
 479                 if (strcmp(pbr_ifp->mapname, mapname) == 0) {
 480                         pbr_ifp->mapname[0] = '\0';
 481                         if (pbrm)
 482                                 pbr_map_interface_delete(pbrm, ifp);
 483                 }
 484         } else {
 485                 if (strcmp(pbr_ifp->mapname, "") != 0) {
 486                         old_pbrm = pbrm_find(pbr_ifp->mapname);
 487
 488                         /*
 489                          * So if we have an old pbrm we should only
 490                          * delete it if we are actually deleting and
 491                          * moving to a new pbrm
 492                          */
 493                         if (old_pbrm && old_pbrm != pbrm)
 494                                 pbr_map_interface_delete(old_pbrm, ifp);
 495                 }
 496                 snprintf(pbr_ifp->mapname, sizeof(pbr_ifp->mapname),
 497                          "%s", mapname);
 498
 499                 /*
 500                  * So only reinstall if the old_pbrm and this pbrm are
 501                  * different.
 502                  */
 503                 if (pbrm && pbrm != old_pbrm)
 504                         pbr_map_add_interface(pbrm, ifp);
 505         }
 506
 507         return CMD_SUCCESS;
 508 }
 509
 510 DEFPY (show_pbr,
 511         show_pbr_cmd,
 512         "show pbr",
 513         SHOW_STR
 514         PBR_STR)
 515 {
 516         pbr_nht_write_table_range(vty);
 517         pbr_nht_write_rule_range(vty);
 518
 519         return CMD_SUCCESS;
 520 }
 521
 522 DEFPY (show_pbr_map,
 523         show_pbr_map_cmd,
 524         "show pbr map [NAME$name] [detail$detail]",
 525         SHOW_STR
 526         PBR_STR
 527         "PBR Map\n"
 528         "PBR Map Name\n"
 529         "Detailed information\n")
 530 {
 531         struct pbr_map_sequence *pbrms;
 532         struct pbr_map *pbrm;
 533         struct listnode *node;
 534         char buf[PREFIX_STRLEN];
 535         char rbuf[64];
 536
 537         RB_FOREACH (pbrm, pbr_map_entry_head, &pbr_maps) {
 538                 if (name && strcmp(name, pbrm->name) != 0)
 539                         continue;
 540
 541                 vty_out(vty, "  pbr-map %s valid: %d\n", pbrm->name,
 542                         pbrm->valid);
 543
 544                 for (ALL_LIST_ELEMENTS_RO(pbrm->seqnumbers, node, pbrms)) {
 545                         if (pbrms->reason)
 546                                 pbr_map_reason_string(pbrms->reason, rbuf,
 547                                                       sizeof(rbuf));
 548                         vty_out(vty,
 549                                 "    Seq: %u rule: %u Installed: %" PRIu64 "(%u) Reason: %s\n",
 550                                 pbrms->seqno, pbrms->ruleno, pbrms->installed,
 551                                 pbrms->unique, pbrms->reason ? rbuf : "Valid");
 552
 553                         if (pbrms->src)
 554                                 vty_out(vty, "\tSRC Match: %s\n",
 555                                         prefix2str(pbrms->src, buf,
 556                                                    sizeof(buf)));
 557                         if (pbrms->dst)
 558                                 vty_out(vty, "\tDST Match: %s\n",
 559                                         prefix2str(pbrms->dst, buf,
 560                                                    sizeof(buf)));
 561                         if (pbrms->mark)
 562                                 vty_out(vty, "\tMARK Match: %u\n", pbrms->mark);
 563
 564                         if (pbrms->nhgrp_name) {
 565                                 vty_out(vty,
 566                                         "\tNexthop-Group: %s(%u) Installed: %u(%d)\n",
 567                                         pbrms->nhgrp_name,
 568                                         pbr_nht_get_table(pbrms->nhgrp_name),
 569                                         pbrms->nhs_installed,
 570                                         pbr_nht_get_installed(
 571                                                 pbrms->nhgrp_name));
 572                         } else if (pbrms->nhg) {
 573                                 vty_out(vty, "     ");
 574                                 nexthop_group_write_nexthop(
 575                                         vty, pbrms->nhg->nexthop);
 576                                 vty_out(vty,
 577                                         "\tInstalled: %u(%d) Tableid: %d\n",
 578                                         pbrms->nhs_installed,
 579                                         pbr_nht_get_installed(
 580                                                 pbrms->internal_nhg_name),
 581                                         pbr_nht_get_table(
 582                                                 pbrms->internal_nhg_name));
 583                         } else if (pbrms->vrf_unchanged) {
 584                                 vty_out(vty,
 585                                         "\tVRF Unchanged (use interface vrf)\n");
 586                         } else if (pbrms->vrf_lookup) {
 587                                 vty_out(vty, "\tVRF Lookup: %s\n",
 588                                         pbrms->vrf_name);
 589                         } else {
 590                                 vty_out(vty,
 591                                         "\tNexthop-Group: Unknown Installed: 0(0)\n");
 592                         }
 593                 }
 594         }
 595         return CMD_SUCCESS;
 596 }
 597
 598 DEFPY(show_pbr_nexthop_group,
 599       show_pbr_nexthop_group_cmd,
 600       "show pbr nexthop-groups [WORD$word]",
 601       SHOW_STR
 602       PBR_STR
 603       "Nexthop Groups\n"
 604       "Optional Name of the nexthop group\n")
 605 {
 606         pbr_nht_show_nexthop_group(vty, word);
 607
 608         return CMD_SUCCESS;
 609 }
 610
 611 DEFPY (show_pbr_interface,
 612         show_pbr_interface_cmd,
 613         "show pbr interface [NAME$name]",
 614         SHOW_STR
 615         PBR_STR
 616         "PBR Interface\n"
 617         "PBR Interface Name\n")
 618 {
 619         struct interface *ifp;
 620         struct vrf *vrf;
 621         struct pbr_interface *pbr_ifp;
 622
 623         RB_FOREACH(vrf, vrf_name_head, &vrfs_by_name) {
 624                 FOR_ALL_INTERFACES(vrf, ifp) {
 625                         struct pbr_map *pbrm;
 626
 627                         if (!ifp->info)
 628                                 continue;
 629
 630                         if (name && strcmp(ifp->name, name) != 0)
 631                                 continue;
 632
 633                         pbr_ifp = ifp->info;
 634
 635                         if (strcmp(pbr_ifp->mapname, "") == 0)
 636                                 continue;
 637
 638                         pbrm = pbrm_find(pbr_ifp->mapname);
 639                         vty_out(vty, "  %s(%d) with pbr-policy %s", ifp->name,
 640                                 ifp->ifindex, pbr_ifp->mapname);
 641                         if (!pbrm)
 642                                 vty_out(vty, " (map doesn't exist)");
 643                         vty_out(vty, "\n");
 644                 }
 645         }
 646
 647         return CMD_SUCCESS;
 648 }
 649
 650 /* PBR debugging CLI ------------------------------------------------------- */
 651
 652 static struct cmd_node debug_node = {DEBUG_NODE, "", 1};
 653
 654 DEFPY(debug_pbr,
 655       debug_pbr_cmd,
 656       "[no] debug pbr [{map$map|zebra$zebra|nht$nht|events$events}]",
 657       NO_STR
 658       DEBUG_STR
 659       PBR_STR
 660       "Policy maps\n"
 661       "PBRD <-> Zebra communications\n"
 662       "Nexthop tracking\n"
 663       "Events\n")
 664 {
 665         uint32_t mode = DEBUG_NODE2MODE(vty->node);
 666
 667         if (map)
 668                 DEBUG_MODE_SET(&pbr_dbg_map, mode, !no);
 669         if (zebra)
 670                 DEBUG_MODE_SET(&pbr_dbg_zebra, mode, !no);
 671         if (nht)
 672                 DEBUG_MODE_SET(&pbr_dbg_nht, mode, !no);
 673         if (events)
 674                 DEBUG_MODE_SET(&pbr_dbg_event, mode, !no);
 675
 676         /* no specific debug --> act on all of them */
 677         if (strmatch(argv[argc - 1]->text, "pbr"))
 678                 pbr_debug_set_all(mode, !no);
 679
 680         return CMD_SUCCESS;
 681 }
 682
 683 DEFUN_NOSH(show_debugging_pbr,
 684            show_debugging_pbr_cmd,
 685            "show debugging [pbr]",
 686            SHOW_STR
 687            DEBUG_STR
 688            PBR_STR)
 689 {
 690         vty_out(vty, "PBR debugging status:\n");
 691
 692         pbr_debug_config_write_helper(vty, false);
 693
 694         return CMD_SUCCESS;
 695 }
 696
 697 /* ------------------------------------------------------------------------- */
 698
 699
 700 static struct cmd_node interface_node = {
 701         INTERFACE_NODE, "%s(config-if)# ", 1 /* vtysh ? yes */
 702 };
 703
 704 static int pbr_interface_config_write(struct vty *vty)
 705 {
 706         struct interface *ifp;
 707         struct vrf *vrf;
 708
 709         RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
 710                 FOR_ALL_INTERFACES (vrf, ifp) {
 711                         if (vrf->vrf_id == VRF_DEFAULT)
 712                                 vty_frame(vty, "interface %s\n", ifp->name);
 713                         else
 714                                 vty_frame(vty, "interface %s vrf %s\n",
 715                                           ifp->name, vrf->name);
 716
 717                         if (ifp->desc)
 718                                 vty_out(vty, " description %s\n", ifp->desc);
 719
 720                         pbr_map_write_interfaces(vty, ifp);
 721
 722                         vty_endframe(vty, "!\n");
 723                 }
 724         }
 725
 726         return 1;
 727 }
 728
 729 /* PBR map node structure. */
 730 static struct cmd_node pbr_map_node = {PBRMAP_NODE, "%s(config-pbr-map)# ", 1};
 731
 732 static int pbr_vty_map_config_write_sequence(struct vty *vty,
 733                                              struct pbr_map *pbrm,
 734                                              struct pbr_map_sequence *pbrms)
 735 {
 736         char buff[PREFIX_STRLEN];
 737
 738         vty_out(vty, "pbr-map %s seq %u\n", pbrm->name, pbrms->seqno);
 739
 740         if (pbrms->src)
 741                 vty_out(vty, " match src-ip %s\n",
 742                         prefix2str(pbrms->src, buff, sizeof(buff)));
 743
 744         if (pbrms->dst)
 745                 vty_out(vty, " match dst-ip %s\n",
 746                         prefix2str(pbrms->dst, buff, sizeof(buff)));
 747
 748         if (pbrms->mark)
 749                 vty_out(vty, " match mark %u\n", pbrms->mark);
 750
 751         if (pbrms->vrf_unchanged)
 752                 vty_out(vty, " set vrf unchanged\n");
 753
 754         if (pbrms->vrf_lookup)
 755                 vty_out(vty, " set vrf %s\n", pbrms->vrf_name);
 756
 757         if (pbrms->nhgrp_name)
 758                 vty_out(vty, " set nexthop-group %s\n", pbrms->nhgrp_name);
 759
 760         if (pbrms->nhg) {
 761                 vty_out(vty, " set ");
 762                 nexthop_group_write_nexthop(vty, pbrms->nhg->nexthop);
 763         }
 764
 765         vty_out(vty, "!\n");
 766         return 1;
 767 }
 768
 769 static int pbr_vty_map_config_write(struct vty *vty)
 770 {
 771         struct pbr_map *pbrm;
 772
 773         pbr_nht_write_table_range(vty);
 774         pbr_nht_write_rule_range(vty);
 775
 776         RB_FOREACH(pbrm, pbr_map_entry_head, &pbr_maps) {
 777                 struct pbr_map_sequence *pbrms;
 778                 struct listnode *node;
 779
 780                 for (ALL_LIST_ELEMENTS_RO(pbrm->seqnumbers, node, pbrms))
 781                         pbr_vty_map_config_write_sequence(vty, pbrm, pbrms);
 782         }
 783
 784         return 1;
 785 }
 786
 787 static void pbr_map_completer(vector comps, struct cmd_token *token)
 788 {
 789         struct pbr_map *pbrm;
 790
 791         RB_FOREACH (pbrm, pbr_map_entry_head, &pbr_maps)
 792                 vector_set(comps, XSTRDUP(MTYPE_COMPLETION, pbrm->name));
 793 }
 794
 795 static const struct cmd_variable_handler pbr_map_name[] = {
 796         {
 797                 .tokenname = "PBRMAP", .completions = pbr_map_completer,
 798         },
 799         {
 800                 .completions = NULL
 801         }
 802 };
 803
 804 void pbr_vty_init(void)
 805 {
 806         cmd_variable_handler_register(pbr_map_name);
 807
 808         install_node(&interface_node,
 809                      pbr_interface_config_write);
 810         if_cmd_init();
 811
 812         install_node(&pbr_map_node,
 813                      pbr_vty_map_config_write);
 814
 815         /* debug */
 816         install_node(&debug_node, pbr_debug_config_write);
 817         install_element(VIEW_NODE, &debug_pbr_cmd);
 818         install_element(CONFIG_NODE, &debug_pbr_cmd);
 819         install_element(VIEW_NODE, &show_debugging_pbr_cmd);
 820
 821         install_default(PBRMAP_NODE);
 822
 823         install_element(CONFIG_NODE, &pbr_map_cmd);
 824         install_element(CONFIG_NODE, &no_pbr_map_cmd);
 825         install_element(CONFIG_NODE, &pbr_set_table_range_cmd);
 826         install_element(INTERFACE_NODE, &pbr_policy_cmd);
 827         install_element(PBRMAP_NODE, &pbr_map_match_src_cmd);
 828         install_element(PBRMAP_NODE, &pbr_map_match_dst_cmd);
 829         install_element(PBRMAP_NODE, &pbr_map_match_mark_cmd);
 830         install_element(PBRMAP_NODE, &pbr_map_nexthop_group_cmd);
 831         install_element(PBRMAP_NODE, &pbr_map_nexthop_cmd);
 832         install_element(PBRMAP_NODE, &pbr_map_vrf_cmd);
 833         install_element(VIEW_NODE, &show_pbr_cmd);
 834         install_element(VIEW_NODE, &show_pbr_map_cmd);
 835         install_element(VIEW_NODE, &show_pbr_interface_cmd);
 836         install_element(VIEW_NODE, &show_pbr_nexthop_group_cmd);
 837 }