2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vlib/vlib.h>
17 #include <vnet/dpo/drop_dpo.h>
19 #include <vnet/fib/fib_table.h>
20 #include <vnet/fib/fib_entry_cover.h>
21 #include <vnet/fib/fib_internal.h>
22 #include <vnet/fib/ip4_fib.h>
23 #include <vnet/fib/ip6_fib.h>
24 #include <vnet/fib/mpls_fib.h>
26 const static char * fib_table_flags_strings[] = FIB_TABLE_ATTRIBUTES;
29 fib_table_get (fib_node_index_t index,
34 case FIB_PROTOCOL_IP4:
35 return (pool_elt_at_index(ip4_main.fibs, index));
36 case FIB_PROTOCOL_IP6:
37 return (pool_elt_at_index(ip6_main.fibs, index));
38 case FIB_PROTOCOL_MPLS:
39 return (pool_elt_at_index(mpls_main.fibs, index));
45 static inline fib_node_index_t
46 fib_table_lookup_i (fib_table_t *fib_table,
47 const fib_prefix_t *prefix)
49 switch (prefix->fp_proto)
51 case FIB_PROTOCOL_IP4:
52 return (ip4_fib_table_lookup(ip4_fib_get(fib_table->ft_index),
55 case FIB_PROTOCOL_IP6:
56 return (ip6_fib_table_lookup(fib_table->ft_index,
59 case FIB_PROTOCOL_MPLS:
60 return (mpls_fib_table_lookup(mpls_fib_get(fib_table->ft_index),
64 return (FIB_NODE_INDEX_INVALID);
68 fib_table_lookup (u32 fib_index,
69 const fib_prefix_t *prefix)
71 return (fib_table_lookup_i(fib_table_get(fib_index, prefix->fp_proto), prefix));
74 static inline fib_node_index_t
75 fib_table_lookup_exact_match_i (const fib_table_t *fib_table,
76 const fib_prefix_t *prefix)
78 switch (prefix->fp_proto)
80 case FIB_PROTOCOL_IP4:
81 return (ip4_fib_table_lookup_exact_match(ip4_fib_get(fib_table->ft_index),
84 case FIB_PROTOCOL_IP6:
85 return (ip6_fib_table_lookup_exact_match(fib_table->ft_index,
88 case FIB_PROTOCOL_MPLS:
89 return (mpls_fib_table_lookup(mpls_fib_get(fib_table->ft_index),
93 return (FIB_NODE_INDEX_INVALID);
97 fib_table_lookup_exact_match (u32 fib_index,
98 const fib_prefix_t *prefix)
100 return (fib_table_lookup_exact_match_i(fib_table_get(fib_index,
105 static fib_node_index_t
106 fib_table_get_less_specific_i (fib_table_t *fib_table,
107 const fib_prefix_t *prefix)
113 if (FIB_PROTOCOL_MPLS == pfx.fp_proto)
115 return (FIB_NODE_INDEX_INVALID);
119 * in the absence of a tree structure for the table that allows for an O(1)
120 * parent get, a cheeky way to find the cover is to LPM for the prefix with
122 * there should always be a cover, though it may be the default route. the
123 * default route's cover is the default route.
125 if (pfx.fp_len != 0) {
129 return (fib_table_lookup_i(fib_table, &pfx));
133 fib_table_get_less_specific (u32 fib_index,
134 const fib_prefix_t *prefix)
136 return (fib_table_get_less_specific_i(fib_table_get(fib_index,
142 fib_table_entry_remove (fib_table_t *fib_table,
143 const fib_prefix_t *prefix,
144 fib_node_index_t fib_entry_index)
146 vlib_smp_unsafe_warning();
148 fib_table->ft_total_route_counts--;
150 switch (prefix->fp_proto)
152 case FIB_PROTOCOL_IP4:
153 ip4_fib_table_entry_remove(ip4_fib_get(fib_table->ft_index),
154 &prefix->fp_addr.ip4,
157 case FIB_PROTOCOL_IP6:
158 ip6_fib_table_entry_remove(fib_table->ft_index,
159 &prefix->fp_addr.ip6,
162 case FIB_PROTOCOL_MPLS:
163 mpls_fib_table_entry_remove(mpls_fib_get(fib_table->ft_index),
169 fib_entry_unlock(fib_entry_index);
173 fib_table_post_insert_actions (fib_table_t *fib_table,
174 const fib_prefix_t *prefix,
175 fib_node_index_t fib_entry_index)
177 fib_node_index_t fib_entry_cover_index;
180 * no cover relationships in the MPLS FIB
182 if (FIB_PROTOCOL_MPLS == prefix->fp_proto)
186 * find the covering entry
188 fib_entry_cover_index = fib_table_get_less_specific_i(fib_table, prefix);
190 * the indicies are the same when the default route is first added
192 if (fib_entry_cover_index != fib_entry_index)
195 * push any inherting sources from the cover onto the covered
197 fib_entry_inherit(fib_entry_cover_index,
201 * inform the covering entry that a new more specific
202 * has been inserted beneath it.
203 * If the prefix that has been inserted is a host route
204 * then it is not possible that it will be the cover for any
205 * other entry, so we can elide the walk. This is particularly
206 * beneficial since there are often many host entries sharing the
207 * same cover (i.e. ADJ or RR sourced entries).
209 if (!fib_entry_is_host(fib_entry_index))
211 fib_entry_cover_change_notify(fib_entry_cover_index,
218 fib_table_entry_insert (fib_table_t *fib_table,
219 const fib_prefix_t *prefix,
220 fib_node_index_t fib_entry_index)
222 vlib_smp_unsafe_warning();
224 fib_entry_lock(fib_entry_index);
225 fib_table->ft_total_route_counts++;
227 switch (prefix->fp_proto)
229 case FIB_PROTOCOL_IP4:
230 ip4_fib_table_entry_insert(ip4_fib_get(fib_table->ft_index),
231 &prefix->fp_addr.ip4,
235 case FIB_PROTOCOL_IP6:
236 ip6_fib_table_entry_insert(fib_table->ft_index,
237 &prefix->fp_addr.ip6,
241 case FIB_PROTOCOL_MPLS:
242 mpls_fib_table_entry_insert(mpls_fib_get(fib_table->ft_index),
249 fib_table_post_insert_actions(fib_table, prefix, fib_entry_index);
253 fib_table_fwding_dpo_update (u32 fib_index,
254 const fib_prefix_t *prefix,
257 vlib_smp_unsafe_warning();
259 switch (prefix->fp_proto)
261 case FIB_PROTOCOL_IP4:
262 return (ip4_fib_table_fwding_dpo_update(ip4_fib_get(fib_index),
263 &prefix->fp_addr.ip4,
266 case FIB_PROTOCOL_IP6:
267 return (ip6_fib_table_fwding_dpo_update(fib_index,
268 &prefix->fp_addr.ip6,
271 case FIB_PROTOCOL_MPLS:
272 return (mpls_fib_forwarding_table_update(mpls_fib_get(fib_index),
280 fib_table_fwding_dpo_remove (u32 fib_index,
281 const fib_prefix_t *prefix,
284 vlib_smp_unsafe_warning();
286 switch (prefix->fp_proto)
288 case FIB_PROTOCOL_IP4:
289 return (ip4_fib_table_fwding_dpo_remove(ip4_fib_get(fib_index),
290 &prefix->fp_addr.ip4,
293 fib_table_get_less_specific(fib_index,
295 case FIB_PROTOCOL_IP6:
296 return (ip6_fib_table_fwding_dpo_remove(fib_index,
297 &prefix->fp_addr.ip6,
300 case FIB_PROTOCOL_MPLS:
301 return (mpls_fib_forwarding_table_reset(mpls_fib_get(fib_index),
308 fib_table_source_count_inc (fib_table_t *fib_table,
311 vec_validate (fib_table->ft_src_route_counts, source);
312 fib_table->ft_src_route_counts[source]++;
316 fib_table_source_count_dec (fib_table_t *fib_table,
319 vec_validate (fib_table->ft_src_route_counts, source);
320 fib_table->ft_src_route_counts[source]--;
324 fib_table_entry_special_dpo_add (u32 fib_index,
325 const fib_prefix_t *prefix,
327 fib_entry_flag_t flags,
330 fib_node_index_t fib_entry_index;
331 fib_table_t *fib_table;
333 fib_table = fib_table_get(fib_index, prefix->fp_proto);
334 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
336 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
338 fib_entry_index = fib_entry_create_special(fib_index, prefix,
342 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
343 fib_table_source_count_inc(fib_table, source);
349 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
350 fib_entry_special_add(fib_entry_index, source, flags, dpo);
352 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
354 fib_table_source_count_inc(fib_table, source);
359 return (fib_entry_index);
363 fib_table_entry_special_dpo_update (u32 fib_index,
364 const fib_prefix_t *prefix,
366 fib_entry_flag_t flags,
369 fib_node_index_t fib_entry_index;
370 fib_table_t *fib_table;
372 fib_table = fib_table_get(fib_index, prefix->fp_proto);
373 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
375 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
377 fib_entry_index = fib_entry_create_special(fib_index, prefix,
381 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
382 fib_table_source_count_inc(fib_table, source);
388 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
391 fib_entry_special_update(fib_entry_index, source, flags, dpo);
393 fib_entry_special_add(fib_entry_index, source, flags, dpo);
395 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
397 fib_table_source_count_inc(fib_table, source);
401 return (fib_entry_index);
405 fib_table_entry_special_add (u32 fib_index,
406 const fib_prefix_t *prefix,
408 fib_entry_flag_t flags)
410 fib_node_index_t fib_entry_index;
411 dpo_id_t tmp_dpo = DPO_INVALID;
413 dpo_copy(&tmp_dpo, drop_dpo_get(fib_proto_to_dpo(prefix->fp_proto)));
415 fib_entry_index = fib_table_entry_special_dpo_add(fib_index, prefix, source,
418 dpo_unlock(&tmp_dpo);
420 return (fib_entry_index);
424 fib_table_entry_special_remove (u32 fib_index,
425 const fib_prefix_t *prefix,
430 * yes => remove source
431 * 2 - is it still sourced?
434 fib_node_index_t fib_entry_index;
435 fib_table_t *fib_table;
437 fib_table = fib_table_get(fib_index, prefix->fp_proto);
438 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
440 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
443 * removing an etry that does not exist. i'll allow it.
448 fib_entry_src_flag_t src_flag;
452 * don't nobody go nowhere
454 fib_entry_lock(fib_entry_index);
455 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
457 src_flag = fib_entry_special_remove(fib_entry_index, source);
459 if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
462 * last source gone. remove from the table
464 fib_table_entry_remove(fib_table, prefix, fib_entry_index);
467 * now the entry is no longer in the table, we can
468 * inform the entries that it covers to re-calculate their cover
470 fib_entry_cover_change_notify(fib_entry_index,
471 FIB_NODE_INDEX_INVALID);
475 * still has sources, leave it be.
477 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
479 fib_table_source_count_dec(fib_table, source);
482 fib_entry_unlock(fib_entry_index);
487 * fib_table_route_path_fixup
489 * Convert attached hosts to attached next-hops.
491 * This special case is required because an attached path will link to a
492 * glean, and the FIB entry will have the interface or API/CLI source. When
493 * the ARP/ND process is completes then that source (which will provide a
494 * complete adjacency) will be lower priority and so the FIB entry will
495 * remain linked to a glean and traffic will never reach the hosts. For
496 * an ATTAHCED_HOST path we can link the path directly to the [incomplete]
500 fib_table_route_path_fixup (const fib_prefix_t *prefix,
501 fib_entry_flag_t *eflags,
502 fib_route_path_t *path)
505 * not all zeros next hop &&
506 * is recursive path &&
507 * nexthop is same as the route's address
509 if ((!ip46_address_is_zero(&path->frp_addr)) &&
510 (~0 == path->frp_sw_if_index) &&
511 (0 == ip46_address_cmp(&path->frp_addr, &prefix->fp_addr)))
513 /* Prefix recurses via itself */
514 path->frp_flags |= FIB_ROUTE_PATH_DROP;
516 if (!(path->frp_flags & FIB_ROUTE_PATH_LOCAL) &&
517 fib_prefix_is_host(prefix) &&
518 ip46_address_is_zero(&path->frp_addr) &&
519 path->frp_sw_if_index != ~0 &&
520 path->frp_proto != DPO_PROTO_ETHERNET)
522 path->frp_addr = prefix->fp_addr;
523 path->frp_flags |= FIB_ROUTE_PATH_ATTACHED;
525 else if ((*eflags & FIB_ENTRY_FLAG_CONNECTED) &&
526 !(*eflags & FIB_ENTRY_FLAG_LOCAL))
528 if (ip46_address_is_zero(&path->frp_addr))
530 path->frp_flags |= FIB_ROUTE_PATH_GLEAN;
531 fib_prefix_normalize(prefix, &path->frp_connected);
534 if (*eflags & FIB_ENTRY_FLAG_DROP)
536 path->frp_flags |= FIB_ROUTE_PATH_DROP;
538 if (*eflags & FIB_ENTRY_FLAG_LOCAL)
540 path->frp_flags |= FIB_ROUTE_PATH_LOCAL;
542 if (*eflags & FIB_ENTRY_FLAG_EXCLUSIVE)
544 path->frp_flags |= FIB_ROUTE_PATH_EXCLUSIVE;
546 if (path->frp_flags & FIB_ROUTE_PATH_LOCAL)
548 *eflags |= FIB_ENTRY_FLAG_LOCAL;
550 if (path->frp_sw_if_index != ~0)
552 *eflags |= FIB_ENTRY_FLAG_CONNECTED;
558 fib_table_entry_path_add (u32 fib_index,
559 const fib_prefix_t *prefix,
561 fib_entry_flag_t flags,
562 dpo_proto_t next_hop_proto,
563 const ip46_address_t *next_hop,
564 u32 next_hop_sw_if_index,
565 u32 next_hop_fib_index,
567 fib_mpls_label_t *next_hop_labels,
568 fib_route_path_flags_t path_flags)
570 fib_route_path_t path = {
571 .frp_proto = next_hop_proto,
572 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
573 .frp_sw_if_index = next_hop_sw_if_index,
574 .frp_fib_index = next_hop_fib_index,
575 .frp_weight = next_hop_weight,
576 .frp_flags = path_flags,
577 .frp_rpf_id = INDEX_INVALID,
578 .frp_label_stack = next_hop_labels,
580 fib_node_index_t fib_entry_index;
581 fib_route_path_t *paths = NULL;
583 vec_add1(paths, path);
585 fib_entry_index = fib_table_entry_path_add2(fib_index, prefix,
586 source, flags, paths);
589 return (fib_entry_index);
593 fib_route_path_cmp_for_sort (void * v1,
596 return (fib_route_path_cmp(v1, v2));
600 fib_table_entry_path_add2 (u32 fib_index,
601 const fib_prefix_t *prefix,
603 fib_entry_flag_t flags,
604 fib_route_path_t *rpaths)
606 fib_node_index_t fib_entry_index;
607 fib_table_t *fib_table;
610 fib_table = fib_table_get(fib_index, prefix->fp_proto);
611 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
613 for (ii = 0; ii < vec_len(rpaths); ii++)
615 fib_table_route_path_fixup(prefix, &flags, &rpaths[ii]);
618 * sort the paths provided by the control plane. this means
619 * the paths and the extension on the entry will be sorted.
621 vec_sort_with_function(rpaths, fib_route_path_cmp_for_sort);
623 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
625 fib_entry_index = fib_entry_create(fib_index, prefix,
629 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
630 fib_table_source_count_inc(fib_table, source);
636 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
637 fib_entry_path_add(fib_entry_index, source, flags, rpaths);;
639 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
641 fib_table_source_count_inc(fib_table, source);
645 return (fib_entry_index);
649 fib_table_entry_path_remove2 (u32 fib_index,
650 const fib_prefix_t *prefix,
652 fib_route_path_t *rpaths)
656 * yes => remove source
657 * 2 - is it still sourced?
660 fib_node_index_t fib_entry_index;
661 fib_route_path_t *rpath;
662 fib_table_t *fib_table;
664 fib_table = fib_table_get(fib_index, prefix->fp_proto);
665 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
667 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
670 * removing an etry that does not exist. i'll allow it.
675 fib_entry_src_flag_t src_flag;
679 * if it's not sourced, then there's nowt to remove
681 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
688 * don't nobody go nowhere
690 fib_entry_lock(fib_entry_index);
692 vec_foreach(rpath, rpaths)
694 fib_entry_flag_t eflags;
696 eflags = fib_entry_get_flags_for_source(fib_entry_index,
698 fib_table_route_path_fixup(prefix, &eflags, rpath);
701 src_flag = fib_entry_path_remove(fib_entry_index, source, rpaths);
703 if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
706 * last source gone. remove from the table
708 fib_table_entry_remove(fib_table, prefix, fib_entry_index);
711 * now the entry is no longer in the table, we can
712 * inform the entries that it covers to re-calculate their cover
714 fib_entry_cover_change_notify(fib_entry_index,
715 FIB_NODE_INDEX_INVALID);
719 * still has sources, leave it be.
721 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
723 fib_table_source_count_dec(fib_table, source);
726 fib_entry_unlock(fib_entry_index);
731 fib_table_entry_path_remove (u32 fib_index,
732 const fib_prefix_t *prefix,
734 dpo_proto_t next_hop_proto,
735 const ip46_address_t *next_hop,
736 u32 next_hop_sw_if_index,
737 u32 next_hop_fib_index,
739 fib_route_path_flags_t path_flags)
743 * yes => remove source
744 * 2 - is it still sourced?
747 fib_route_path_t path = {
748 .frp_proto = next_hop_proto,
749 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
750 .frp_sw_if_index = next_hop_sw_if_index,
751 .frp_fib_index = next_hop_fib_index,
752 .frp_weight = next_hop_weight,
753 .frp_flags = path_flags,
755 fib_route_path_t *paths = NULL;
757 vec_add1(paths, path);
759 fib_table_entry_path_remove2(fib_index, prefix, source, paths);
765 fib_table_entry_update (u32 fib_index,
766 const fib_prefix_t *prefix,
768 fib_entry_flag_t flags,
769 fib_route_path_t *paths)
771 fib_node_index_t fib_entry_index;
772 fib_table_t *fib_table;
775 fib_table = fib_table_get(fib_index, prefix->fp_proto);
776 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
778 for (ii = 0; ii < vec_len(paths); ii++)
780 fib_table_route_path_fixup(prefix, &flags, &paths[ii]);
783 * sort the paths provided by the control plane. this means
784 * the paths and the extension on the entry will be sorted.
786 vec_sort_with_function(paths, fib_route_path_cmp_for_sort);
788 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
790 fib_entry_index = fib_entry_create(fib_index, prefix,
794 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
795 fib_table_source_count_inc(fib_table, source);
801 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
802 fib_entry_update(fib_entry_index, source, flags, paths);
804 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
806 fib_table_source_count_inc(fib_table, source);
810 return (fib_entry_index);
814 fib_table_entry_update_one_path (u32 fib_index,
815 const fib_prefix_t *prefix,
817 fib_entry_flag_t flags,
818 dpo_proto_t next_hop_proto,
819 const ip46_address_t *next_hop,
820 u32 next_hop_sw_if_index,
821 u32 next_hop_fib_index,
823 fib_mpls_label_t *next_hop_labels,
824 fib_route_path_flags_t path_flags)
826 fib_node_index_t fib_entry_index;
827 fib_route_path_t path = {
828 .frp_proto = next_hop_proto,
829 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
830 .frp_sw_if_index = next_hop_sw_if_index,
831 .frp_fib_index = next_hop_fib_index,
832 .frp_weight = next_hop_weight,
833 .frp_flags = path_flags,
834 .frp_label_stack = next_hop_labels,
836 fib_route_path_t *paths = NULL;
838 vec_add1(paths, path);
841 fib_table_entry_update(fib_index, prefix, source, flags, paths);
845 return (fib_entry_index);
849 fib_table_entry_delete_i (u32 fib_index,
850 fib_node_index_t fib_entry_index,
851 const fib_prefix_t *prefix,
854 fib_entry_src_flag_t src_flag;
855 fib_table_t *fib_table;
858 fib_table = fib_table_get(fib_index, prefix->fp_proto);
859 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
862 * don't nobody go nowhere
864 fib_entry_lock(fib_entry_index);
866 src_flag = fib_entry_delete(fib_entry_index, source);
868 if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
871 * last source gone. remove from the table
873 fib_table_entry_remove(fib_table, prefix, fib_entry_index);
876 * now the entry is no longer in the table, we can
877 * inform the entries that it covers to re-calculate their cover
879 fib_entry_cover_change_notify(fib_entry_index,
880 FIB_NODE_INDEX_INVALID);
884 * still has sources, leave it be.
886 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
888 fib_table_source_count_dec(fib_table, source);
891 fib_entry_unlock(fib_entry_index);
895 fib_table_entry_delete (u32 fib_index,
896 const fib_prefix_t *prefix,
899 fib_node_index_t fib_entry_index;
901 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
903 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
906 * removing an etry that does not exist.
907 * i'll allow it, but i won't like it.
910 clib_warning("%U not in FIB", format_fib_prefix, prefix);
914 fib_table_entry_delete_i(fib_index, fib_entry_index, prefix, source);
919 fib_table_entry_delete_index (fib_node_index_t fib_entry_index,
922 const fib_prefix_t *prefix;
924 prefix = fib_entry_get_prefix(fib_entry_index);
926 fib_table_entry_delete_i(fib_entry_get_fib_index(fib_entry_index),
927 fib_entry_index, prefix, source);
931 fib_table_entry_get_stats_index (u32 fib_index,
932 const fib_prefix_t *prefix)
934 return (fib_entry_get_stats_index(
935 fib_table_lookup_exact_match(fib_index, prefix)));
939 fib_table_entry_local_label_add (u32 fib_index,
940 const fib_prefix_t *prefix,
943 fib_node_index_t fib_entry_index;
945 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
947 if (FIB_NODE_INDEX_INVALID == fib_entry_index ||
948 !fib_entry_is_sourced(fib_entry_index, FIB_SOURCE_MPLS))
951 * only source the prefix once. this allows the label change
954 fib_entry_index = fib_table_entry_special_dpo_add(fib_index, prefix,
960 fib_entry_set_source_data(fib_entry_index, FIB_SOURCE_MPLS, &label);
962 return (fib_entry_index);
966 fib_table_entry_local_label_remove (u32 fib_index,
967 const fib_prefix_t *prefix,
970 fib_node_index_t fib_entry_index;
974 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
976 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
979 data = fib_entry_get_source_data(fib_entry_index, FIB_SOURCE_MPLS);
984 pl = *(mpls_label_t*)data;
989 pl = MPLS_LABEL_INVALID;
991 fib_entry_set_source_data(fib_entry_index, FIB_SOURCE_MPLS, &pl);
992 fib_table_entry_special_remove(fib_index,
998 fib_table_get_index_for_sw_if_index (fib_protocol_t proto,
1003 case FIB_PROTOCOL_IP4:
1004 return (ip4_fib_table_get_index_for_sw_if_index(sw_if_index));
1005 case FIB_PROTOCOL_IP6:
1006 return (ip6_fib_table_get_index_for_sw_if_index(sw_if_index));
1007 case FIB_PROTOCOL_MPLS:
1008 return (mpls_fib_table_get_index_for_sw_if_index(sw_if_index));
1014 fib_table_get_flow_hash_config (u32 fib_index,
1015 fib_protocol_t proto)
1019 fib = fib_table_get(fib_index, proto);
1021 return (fib->ft_flow_hash_config);
1025 fib_table_get_default_flow_hash_config (fib_protocol_t proto)
1029 case FIB_PROTOCOL_IP4:
1030 case FIB_PROTOCOL_IP6:
1031 return (IP_FLOW_HASH_DEFAULT);
1033 case FIB_PROTOCOL_MPLS:
1034 return (MPLS_FLOW_HASH_DEFAULT);
1038 return (IP_FLOW_HASH_DEFAULT);
1042 * @brief Table set flow hash config context.
1044 typedef struct fib_table_set_flow_hash_config_ctx_t_
1047 * the flow hash config to set
1049 flow_hash_config_t hash_config;
1050 } fib_table_set_flow_hash_config_ctx_t;
1052 static fib_table_walk_rc_t
1053 fib_table_set_flow_hash_config_cb (fib_node_index_t fib_entry_index,
1056 fib_table_set_flow_hash_config_ctx_t *ctx = arg;
1058 fib_entry_set_flow_hash_config(fib_entry_index, ctx->hash_config);
1060 return (FIB_TABLE_WALK_CONTINUE);
1064 fib_table_set_flow_hash_config (u32 fib_index,
1065 fib_protocol_t proto,
1066 flow_hash_config_t hash_config)
1068 fib_table_set_flow_hash_config_ctx_t ctx = {
1069 .hash_config = hash_config,
1073 fib = fib_table_get(fib_index, proto);
1074 fib->ft_flow_hash_config = hash_config;
1076 fib_table_walk(fib_index, proto,
1077 fib_table_set_flow_hash_config_cb,
1082 fib_table_get_table_id_for_sw_if_index (fib_protocol_t proto,
1085 fib_table_t *fib_table;
1087 fib_table = fib_table_get(fib_table_get_index_for_sw_if_index(
1088 proto, sw_if_index),
1091 return ((NULL != fib_table ? fib_table->ft_table_id : ~0));
1095 fib_table_get_table_id (u32 fib_index,
1096 fib_protocol_t proto)
1098 fib_table_t *fib_table;
1100 fib_table = fib_table_get(fib_index, proto);
1102 return ((NULL != fib_table ? fib_table->ft_table_id : ~0));
1106 fib_table_find (fib_protocol_t proto,
1111 case FIB_PROTOCOL_IP4:
1112 return (ip4_fib_index_from_table_id(table_id));
1113 case FIB_PROTOCOL_IP6:
1114 return (ip6_fib_index_from_table_id(table_id));
1115 case FIB_PROTOCOL_MPLS:
1116 return (mpls_fib_index_from_table_id(table_id));
1122 fib_table_find_or_create_and_lock_i (fib_protocol_t proto,
1127 fib_table_t *fib_table;
1128 fib_node_index_t fi;
1132 case FIB_PROTOCOL_IP4:
1133 fi = ip4_fib_table_find_or_create_and_lock(table_id, src);
1135 case FIB_PROTOCOL_IP6:
1136 fi = ip6_fib_table_find_or_create_and_lock(table_id, src);
1138 case FIB_PROTOCOL_MPLS:
1139 fi = mpls_fib_table_find_or_create_and_lock(table_id, src);
1145 fib_table = fib_table_get(fi, proto);
1147 if (NULL == fib_table->ft_desc)
1149 if (name && name[0])
1151 fib_table->ft_desc = format(NULL, "%s", name);
1155 fib_table->ft_desc = format(NULL, "%U-VRF:%d",
1156 format_fib_protocol, proto,
1165 fib_table_find_or_create_and_lock (fib_protocol_t proto,
1169 return (fib_table_find_or_create_and_lock_i(proto, table_id,
1174 fib_table_find_or_create_and_lock_w_name (fib_protocol_t proto,
1179 return (fib_table_find_or_create_and_lock_i(proto, table_id,
1184 fib_table_create_and_lock (fib_protocol_t proto,
1186 const char *const fmt,
1189 fib_table_t *fib_table;
1190 fib_node_index_t fi;
1196 case FIB_PROTOCOL_IP4:
1197 fi = ip4_fib_table_create_and_lock(src);
1199 case FIB_PROTOCOL_IP6:
1200 fi = ip6_fib_table_create_and_lock(src, FIB_TABLE_FLAG_NONE, NULL);
1202 case FIB_PROTOCOL_MPLS:
1203 fi = mpls_fib_table_create_and_lock(src);
1209 fib_table = fib_table_get(fi, proto);
1213 fib_table->ft_desc = va_format(fib_table->ft_desc, fmt, &ap);
1220 fib_table_destroy (fib_table_t *fib_table)
1222 vec_free(fib_table->ft_desc);
1224 switch (fib_table->ft_proto)
1226 case FIB_PROTOCOL_IP4:
1227 ip4_fib_table_destroy(fib_table->ft_index);
1229 case FIB_PROTOCOL_IP6:
1230 ip6_fib_table_destroy(fib_table->ft_index);
1232 case FIB_PROTOCOL_MPLS:
1233 mpls_fib_table_destroy(fib_table->ft_index);
1239 fib_table_walk (u32 fib_index,
1240 fib_protocol_t proto,
1241 fib_table_walk_fn_t fn,
1246 case FIB_PROTOCOL_IP4:
1247 ip4_fib_table_walk(ip4_fib_get(fib_index), fn, ctx);
1249 case FIB_PROTOCOL_IP6:
1250 ip6_fib_table_walk(fib_index, fn, ctx);
1252 case FIB_PROTOCOL_MPLS:
1253 mpls_fib_table_walk(mpls_fib_get(fib_index), fn, ctx);
1258 typedef struct fib_table_walk_w_src_ctx_t_
1260 fib_table_walk_fn_t fn;
1263 } fib_table_walk_w_src_cxt_t;
1265 static fib_table_walk_rc_t
1266 fib_table_walk_w_src_cb (fib_node_index_t fei,
1269 fib_table_walk_w_src_cxt_t *ctx = arg;
1271 if (ctx->src == fib_entry_get_best_source(fei))
1273 return (ctx->fn(fei, ctx->data));
1275 return (FIB_TABLE_WALK_CONTINUE);
1279 fib_table_walk_w_src (u32 fib_index,
1280 fib_protocol_t proto,
1282 fib_table_walk_fn_t fn,
1285 fib_table_walk_w_src_cxt_t ctx = {
1291 fib_table_walk(fib_index, proto, fib_table_walk_w_src_cb, &ctx);
1295 fib_table_sub_tree_walk (u32 fib_index,
1296 fib_protocol_t proto,
1297 const fib_prefix_t *root,
1298 fib_table_walk_fn_t fn,
1303 case FIB_PROTOCOL_IP4:
1304 ip4_fib_table_sub_tree_walk(ip4_fib_get(fib_index), root, fn, ctx);
1306 case FIB_PROTOCOL_IP6:
1307 ip6_fib_table_sub_tree_walk(fib_index, root, fn, ctx);
1309 case FIB_PROTOCOL_MPLS:
1315 fib_table_lock_dec (fib_table_t *fib_table,
1316 fib_source_t source)
1318 vec_validate(fib_table->ft_locks, source);
1320 fib_table->ft_locks[source]--;
1321 fib_table->ft_total_locks--;
1325 fib_table_lock_inc (fib_table_t *fib_table,
1326 fib_source_t source)
1328 vec_validate(fib_table->ft_locks, source);
1330 ASSERT(fib_table->ft_total_locks < (0xffffffff - 1));
1331 fib_table->ft_locks[source]++;
1332 fib_table->ft_total_locks++;
1336 fib_table_unlock (u32 fib_index,
1337 fib_protocol_t proto,
1338 fib_source_t source)
1340 fib_table_t *fib_table;
1342 fib_table = fib_table_get(fib_index, proto);
1343 fib_table_lock_dec(fib_table, source);
1345 if (0 == fib_table->ft_total_locks)
1348 * no more locak from any source - kill it
1350 fib_table_destroy(fib_table);
1355 fib_table_lock (u32 fib_index,
1356 fib_protocol_t proto,
1357 fib_source_t source)
1359 fib_table_t *fib_table;
1361 fib_table = fib_table_get(fib_index, proto);
1363 fib_table_lock_inc(fib_table, source);
1367 fib_table_get_num_entries (u32 fib_index,
1368 fib_protocol_t proto,
1369 fib_source_t source)
1371 fib_table_t *fib_table;
1373 fib_table = fib_table_get(fib_index, proto);
1375 return (fib_table->ft_src_route_counts[source]);
1379 format_fib_table_name (u8* s, va_list* ap)
1381 fib_node_index_t fib_index = va_arg(*ap, fib_node_index_t);
1382 fib_protocol_t proto = va_arg(*ap, int); // int promotion
1383 fib_table_t *fib_table;
1385 fib_table = fib_table_get(fib_index, proto);
1387 s = format(s, "%v", fib_table->ft_desc);
1393 format_fib_table_flags (u8 *s, va_list *args)
1395 fib_table_flags_t flags = va_arg(*args, int);
1396 fib_table_attribute_t attr;
1400 return format(s, "none");
1403 FOR_EACH_FIB_TABLE_ATTRIBUTE(attr) {
1404 if (1 << attr & flags) {
1405 s = format(s, "%s", fib_table_flags_strings[attr]);
1413 * @brief Table flush context. Store the indicies of matching FIB entries
1414 * that need to be removed.
1416 typedef struct fib_table_flush_ctx_t_
1419 * The list of entries to flush
1421 fib_node_index_t *ftf_entries;
1424 * The source we are flushing
1426 fib_source_t ftf_source;
1427 } fib_table_flush_ctx_t;
1429 static fib_table_walk_rc_t
1430 fib_table_flush_cb (fib_node_index_t fib_entry_index,
1433 fib_table_flush_ctx_t *ctx = arg;
1435 if (fib_entry_is_sourced(fib_entry_index, ctx->ftf_source))
1437 vec_add1(ctx->ftf_entries, fib_entry_index);
1439 return (FIB_TABLE_WALK_CONTINUE);
1443 fib_table_flush (u32 fib_index,
1444 fib_protocol_t proto,
1445 fib_source_t source)
1447 fib_node_index_t *fib_entry_index;
1448 fib_table_flush_ctx_t ctx = {
1449 .ftf_entries = NULL,
1450 .ftf_source = source,
1453 fib_table_walk(fib_index, proto,
1457 vec_foreach(fib_entry_index, ctx.ftf_entries)
1459 fib_table_entry_delete_index(*fib_entry_index, source);
1462 vec_free(ctx.ftf_entries);
1465 static fib_table_walk_rc_t
1466 fib_table_mark_cb (fib_node_index_t fib_entry_index,
1469 fib_table_flush_ctx_t *ctx = arg;
1471 if (fib_entry_is_sourced(fib_entry_index, ctx->ftf_source))
1473 fib_entry_mark(fib_entry_index, ctx->ftf_source);
1475 return (FIB_TABLE_WALK_CONTINUE);
1479 fib_table_mark (u32 fib_index,
1480 fib_protocol_t proto,
1481 fib_source_t source)
1483 fib_table_flush_ctx_t ctx = {
1484 .ftf_source = source,
1486 fib_table_t *fib_table;
1488 fib_table = fib_table_get(fib_index, proto);
1490 fib_table->ft_epoch++;
1491 fib_table->ft_flags |= FIB_TABLE_FLAG_RESYNC;
1493 fib_table_walk(fib_index, proto,
1498 static fib_table_walk_rc_t
1499 fib_table_sweep_cb (fib_node_index_t fib_entry_index,
1502 fib_table_flush_ctx_t *ctx = arg;
1504 if (fib_entry_is_marked(fib_entry_index, ctx->ftf_source))
1506 vec_add1(ctx->ftf_entries, fib_entry_index);
1508 return (FIB_TABLE_WALK_CONTINUE);
1512 fib_table_sweep (u32 fib_index,
1513 fib_protocol_t proto,
1514 fib_source_t source)
1516 fib_table_flush_ctx_t ctx = {
1517 .ftf_source = source,
1519 fib_node_index_t *fib_entry_index;
1520 fib_table_t *fib_table;
1522 fib_table = fib_table_get(fib_index, proto);
1524 fib_table->ft_flags &= ~FIB_TABLE_FLAG_RESYNC;
1526 fib_table_walk(fib_index, proto,
1530 vec_foreach(fib_entry_index, ctx.ftf_entries)
1532 fib_table_entry_delete_index(*fib_entry_index, source);
1535 vec_free(ctx.ftf_entries);
1539 format_fib_table_memory (u8 *s, va_list *args)
1541 s = format(s, "%U", format_ip4_fib_table_memory);
1542 s = format(s, "%U", format_ip6_fib_table_memory);
1543 s = format(s, "%U", format_mpls_fib_table_memory);