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 itse;f */
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 if (*eflags & FIB_ENTRY_FLAG_DROP)
527 path->frp_flags |= FIB_ROUTE_PATH_DROP;
529 if (*eflags & FIB_ENTRY_FLAG_LOCAL)
531 path->frp_flags |= FIB_ROUTE_PATH_LOCAL;
533 if (*eflags & FIB_ENTRY_FLAG_EXCLUSIVE)
535 path->frp_flags |= FIB_ROUTE_PATH_EXCLUSIVE;
537 if (path->frp_flags & FIB_ROUTE_PATH_LOCAL)
539 *eflags |= FIB_ENTRY_FLAG_LOCAL;
541 if (path->frp_sw_if_index != ~0)
543 *eflags |= FIB_ENTRY_FLAG_CONNECTED;
549 fib_table_entry_path_add (u32 fib_index,
550 const fib_prefix_t *prefix,
552 fib_entry_flag_t flags,
553 dpo_proto_t next_hop_proto,
554 const ip46_address_t *next_hop,
555 u32 next_hop_sw_if_index,
556 u32 next_hop_fib_index,
558 fib_mpls_label_t *next_hop_labels,
559 fib_route_path_flags_t path_flags)
561 fib_route_path_t path = {
562 .frp_proto = next_hop_proto,
563 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
564 .frp_sw_if_index = next_hop_sw_if_index,
565 .frp_fib_index = next_hop_fib_index,
566 .frp_weight = next_hop_weight,
567 .frp_flags = path_flags,
568 .frp_rpf_id = INDEX_INVALID,
569 .frp_label_stack = next_hop_labels,
571 fib_node_index_t fib_entry_index;
572 fib_route_path_t *paths = NULL;
574 vec_add1(paths, path);
576 fib_entry_index = fib_table_entry_path_add2(fib_index, prefix,
577 source, flags, paths);
580 return (fib_entry_index);
584 fib_table_entry_path_add2 (u32 fib_index,
585 const fib_prefix_t *prefix,
587 fib_entry_flag_t flags,
588 fib_route_path_t *rpaths)
590 fib_node_index_t fib_entry_index;
591 fib_table_t *fib_table;
594 fib_table = fib_table_get(fib_index, prefix->fp_proto);
595 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
597 for (ii = 0; ii < vec_len(rpaths); ii++)
599 fib_table_route_path_fixup(prefix, &flags, &rpaths[ii]);
602 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
604 fib_entry_index = fib_entry_create(fib_index, prefix,
608 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
609 fib_table_source_count_inc(fib_table, source);
615 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
616 fib_entry_path_add(fib_entry_index, source, flags, rpaths);;
618 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
620 fib_table_source_count_inc(fib_table, source);
624 return (fib_entry_index);
628 fib_table_entry_path_remove2 (u32 fib_index,
629 const fib_prefix_t *prefix,
631 fib_route_path_t *rpaths)
635 * yes => remove source
636 * 2 - is it still sourced?
639 fib_node_index_t fib_entry_index;
640 fib_route_path_t *rpath;
641 fib_table_t *fib_table;
643 fib_table = fib_table_get(fib_index, prefix->fp_proto);
644 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
646 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
649 * removing an etry that does not exist. i'll allow it.
654 fib_entry_src_flag_t src_flag;
658 * if it's not sourced, then there's nowt to remove
660 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
667 * don't nobody go nowhere
669 fib_entry_lock(fib_entry_index);
671 vec_foreach(rpath, rpaths)
673 fib_entry_flag_t eflags;
675 eflags = fib_entry_get_flags_for_source(fib_entry_index,
677 fib_table_route_path_fixup(prefix, &eflags, rpath);
680 src_flag = fib_entry_path_remove(fib_entry_index, source, rpaths);
682 if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
685 * last source gone. remove from the table
687 fib_table_entry_remove(fib_table, prefix, fib_entry_index);
690 * now the entry is no longer in the table, we can
691 * inform the entries that it covers to re-calculate their cover
693 fib_entry_cover_change_notify(fib_entry_index,
694 FIB_NODE_INDEX_INVALID);
698 * still has sources, leave it be.
700 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
702 fib_table_source_count_dec(fib_table, source);
705 fib_entry_unlock(fib_entry_index);
710 fib_table_entry_path_remove (u32 fib_index,
711 const fib_prefix_t *prefix,
713 dpo_proto_t next_hop_proto,
714 const ip46_address_t *next_hop,
715 u32 next_hop_sw_if_index,
716 u32 next_hop_fib_index,
718 fib_route_path_flags_t path_flags)
722 * yes => remove source
723 * 2 - is it still sourced?
726 fib_route_path_t path = {
727 .frp_proto = next_hop_proto,
728 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
729 .frp_sw_if_index = next_hop_sw_if_index,
730 .frp_fib_index = next_hop_fib_index,
731 .frp_weight = next_hop_weight,
732 .frp_flags = path_flags,
734 fib_route_path_t *paths = NULL;
736 vec_add1(paths, path);
738 fib_table_entry_path_remove2(fib_index, prefix, source, paths);
744 fib_route_path_cmp_for_sort (void * v1,
747 return (fib_route_path_cmp(v1, v2));
751 fib_table_entry_update (u32 fib_index,
752 const fib_prefix_t *prefix,
754 fib_entry_flag_t flags,
755 fib_route_path_t *paths)
757 fib_node_index_t fib_entry_index;
758 fib_table_t *fib_table;
761 fib_table = fib_table_get(fib_index, prefix->fp_proto);
762 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
764 for (ii = 0; ii < vec_len(paths); ii++)
766 fib_table_route_path_fixup(prefix, &flags, &paths[ii]);
769 * sort the paths provided by the control plane. this means
770 * the paths and the extension on the entry will be sorted.
772 vec_sort_with_function(paths, fib_route_path_cmp_for_sort);
774 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
776 fib_entry_index = fib_entry_create(fib_index, prefix,
780 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
781 fib_table_source_count_inc(fib_table, source);
787 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
788 fib_entry_update(fib_entry_index, source, flags, paths);
790 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
792 fib_table_source_count_inc(fib_table, source);
796 return (fib_entry_index);
800 fib_table_entry_update_one_path (u32 fib_index,
801 const fib_prefix_t *prefix,
803 fib_entry_flag_t flags,
804 dpo_proto_t next_hop_proto,
805 const ip46_address_t *next_hop,
806 u32 next_hop_sw_if_index,
807 u32 next_hop_fib_index,
809 fib_mpls_label_t *next_hop_labels,
810 fib_route_path_flags_t path_flags)
812 fib_node_index_t fib_entry_index;
813 fib_route_path_t path = {
814 .frp_proto = next_hop_proto,
815 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
816 .frp_sw_if_index = next_hop_sw_if_index,
817 .frp_fib_index = next_hop_fib_index,
818 .frp_weight = next_hop_weight,
819 .frp_flags = path_flags,
820 .frp_label_stack = next_hop_labels,
822 fib_route_path_t *paths = NULL;
824 vec_add1(paths, path);
827 fib_table_entry_update(fib_index, prefix, source, flags, paths);
831 return (fib_entry_index);
835 fib_table_entry_delete_i (u32 fib_index,
836 fib_node_index_t fib_entry_index,
837 const fib_prefix_t *prefix,
840 fib_entry_src_flag_t src_flag;
841 fib_table_t *fib_table;
844 fib_table = fib_table_get(fib_index, prefix->fp_proto);
845 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
848 * don't nobody go nowhere
850 fib_entry_lock(fib_entry_index);
852 src_flag = fib_entry_delete(fib_entry_index, source);
854 if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
857 * last source gone. remove from the table
859 fib_table_entry_remove(fib_table, prefix, fib_entry_index);
862 * now the entry is no longer in the table, we can
863 * inform the entries that it covers to re-calculate their cover
865 fib_entry_cover_change_notify(fib_entry_index,
866 FIB_NODE_INDEX_INVALID);
870 * still has sources, leave it be.
872 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
874 fib_table_source_count_dec(fib_table, source);
877 fib_entry_unlock(fib_entry_index);
881 fib_table_entry_delete (u32 fib_index,
882 const fib_prefix_t *prefix,
885 fib_node_index_t fib_entry_index;
887 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
889 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
892 * removing an etry that does not exist.
893 * i'll allow it, but i won't like it.
896 clib_warning("%U not in FIB", format_fib_prefix, prefix);
900 fib_table_entry_delete_i(fib_index, fib_entry_index, prefix, source);
905 fib_table_entry_delete_index (fib_node_index_t fib_entry_index,
908 const fib_prefix_t *prefix;
910 prefix = fib_entry_get_prefix(fib_entry_index);
912 fib_table_entry_delete_i(fib_entry_get_fib_index(fib_entry_index),
913 fib_entry_index, prefix, source);
917 fib_table_entry_get_stats_index (u32 fib_index,
918 const fib_prefix_t *prefix)
920 return (fib_entry_get_stats_index(
921 fib_table_lookup_exact_match(fib_index, prefix)));
925 fib_table_entry_local_label_add (u32 fib_index,
926 const fib_prefix_t *prefix,
929 fib_node_index_t fib_entry_index;
931 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
933 if (FIB_NODE_INDEX_INVALID == fib_entry_index ||
934 !fib_entry_is_sourced(fib_entry_index, FIB_SOURCE_MPLS))
937 * only source the prefix once. this allows the label change
940 fib_entry_index = fib_table_entry_special_dpo_add(fib_index, prefix,
946 fib_entry_set_source_data(fib_entry_index, FIB_SOURCE_MPLS, &label);
948 return (fib_entry_index);
952 fib_table_entry_local_label_remove (u32 fib_index,
953 const fib_prefix_t *prefix,
956 fib_node_index_t fib_entry_index;
960 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
962 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
965 data = fib_entry_get_source_data(fib_entry_index, FIB_SOURCE_MPLS);
970 pl = *(mpls_label_t*)data;
975 pl = MPLS_LABEL_INVALID;
977 fib_entry_set_source_data(fib_entry_index, FIB_SOURCE_MPLS, &pl);
978 fib_table_entry_special_remove(fib_index,
984 fib_table_get_index_for_sw_if_index (fib_protocol_t proto,
989 case FIB_PROTOCOL_IP4:
990 return (ip4_fib_table_get_index_for_sw_if_index(sw_if_index));
991 case FIB_PROTOCOL_IP6:
992 return (ip6_fib_table_get_index_for_sw_if_index(sw_if_index));
993 case FIB_PROTOCOL_MPLS:
994 return (mpls_fib_table_get_index_for_sw_if_index(sw_if_index));
1000 fib_table_get_flow_hash_config (u32 fib_index,
1001 fib_protocol_t proto)
1005 fib = fib_table_get(fib_index, proto);
1007 return (fib->ft_flow_hash_config);
1011 fib_table_get_default_flow_hash_config (fib_protocol_t proto)
1015 case FIB_PROTOCOL_IP4:
1016 case FIB_PROTOCOL_IP6:
1017 return (IP_FLOW_HASH_DEFAULT);
1019 case FIB_PROTOCOL_MPLS:
1020 return (MPLS_FLOW_HASH_DEFAULT);
1024 return (IP_FLOW_HASH_DEFAULT);
1028 * @brief Table set flow hash config context.
1030 typedef struct fib_table_set_flow_hash_config_ctx_t_
1033 * the flow hash config to set
1035 flow_hash_config_t hash_config;
1036 } fib_table_set_flow_hash_config_ctx_t;
1038 static fib_table_walk_rc_t
1039 fib_table_set_flow_hash_config_cb (fib_node_index_t fib_entry_index,
1042 fib_table_set_flow_hash_config_ctx_t *ctx = arg;
1044 fib_entry_set_flow_hash_config(fib_entry_index, ctx->hash_config);
1046 return (FIB_TABLE_WALK_CONTINUE);
1050 fib_table_set_flow_hash_config (u32 fib_index,
1051 fib_protocol_t proto,
1052 flow_hash_config_t hash_config)
1054 fib_table_set_flow_hash_config_ctx_t ctx = {
1055 .hash_config = hash_config,
1059 fib = fib_table_get(fib_index, proto);
1060 fib->ft_flow_hash_config = hash_config;
1062 fib_table_walk(fib_index, proto,
1063 fib_table_set_flow_hash_config_cb,
1068 fib_table_get_table_id_for_sw_if_index (fib_protocol_t proto,
1071 fib_table_t *fib_table;
1073 fib_table = fib_table_get(fib_table_get_index_for_sw_if_index(
1074 proto, sw_if_index),
1077 return ((NULL != fib_table ? fib_table->ft_table_id : ~0));
1081 fib_table_get_table_id (u32 fib_index,
1082 fib_protocol_t proto)
1084 fib_table_t *fib_table;
1086 fib_table = fib_table_get(fib_index, proto);
1088 return ((NULL != fib_table ? fib_table->ft_table_id : ~0));
1092 fib_table_find (fib_protocol_t proto,
1097 case FIB_PROTOCOL_IP4:
1098 return (ip4_fib_index_from_table_id(table_id));
1099 case FIB_PROTOCOL_IP6:
1100 return (ip6_fib_index_from_table_id(table_id));
1101 case FIB_PROTOCOL_MPLS:
1102 return (mpls_fib_index_from_table_id(table_id));
1108 fib_table_find_or_create_and_lock_i (fib_protocol_t proto,
1113 fib_table_t *fib_table;
1114 fib_node_index_t fi;
1118 case FIB_PROTOCOL_IP4:
1119 fi = ip4_fib_table_find_or_create_and_lock(table_id, src);
1121 case FIB_PROTOCOL_IP6:
1122 fi = ip6_fib_table_find_or_create_and_lock(table_id, src);
1124 case FIB_PROTOCOL_MPLS:
1125 fi = mpls_fib_table_find_or_create_and_lock(table_id, src);
1131 fib_table = fib_table_get(fi, proto);
1133 if (NULL == fib_table->ft_desc)
1135 if (name && name[0])
1137 fib_table->ft_desc = format(NULL, "%s", name);
1141 fib_table->ft_desc = format(NULL, "%U-VRF:%d",
1142 format_fib_protocol, proto,
1151 fib_table_find_or_create_and_lock (fib_protocol_t proto,
1155 return (fib_table_find_or_create_and_lock_i(proto, table_id,
1160 fib_table_find_or_create_and_lock_w_name (fib_protocol_t proto,
1165 return (fib_table_find_or_create_and_lock_i(proto, table_id,
1170 fib_table_create_and_lock (fib_protocol_t proto,
1172 const char *const fmt,
1175 fib_table_t *fib_table;
1176 fib_node_index_t fi;
1182 case FIB_PROTOCOL_IP4:
1183 fi = ip4_fib_table_create_and_lock(src);
1185 case FIB_PROTOCOL_IP6:
1186 fi = ip6_fib_table_create_and_lock(src, FIB_TABLE_FLAG_NONE, NULL);
1188 case FIB_PROTOCOL_MPLS:
1189 fi = mpls_fib_table_create_and_lock(src);
1195 fib_table = fib_table_get(fi, proto);
1199 fib_table->ft_desc = va_format(fib_table->ft_desc, fmt, &ap);
1206 fib_table_destroy (fib_table_t *fib_table)
1208 vec_free(fib_table->ft_desc);
1210 switch (fib_table->ft_proto)
1212 case FIB_PROTOCOL_IP4:
1213 ip4_fib_table_destroy(fib_table->ft_index);
1215 case FIB_PROTOCOL_IP6:
1216 ip6_fib_table_destroy(fib_table->ft_index);
1218 case FIB_PROTOCOL_MPLS:
1219 mpls_fib_table_destroy(fib_table->ft_index);
1225 fib_table_walk (u32 fib_index,
1226 fib_protocol_t proto,
1227 fib_table_walk_fn_t fn,
1232 case FIB_PROTOCOL_IP4:
1233 ip4_fib_table_walk(ip4_fib_get(fib_index), fn, ctx);
1235 case FIB_PROTOCOL_IP6:
1236 ip6_fib_table_walk(fib_index, fn, ctx);
1238 case FIB_PROTOCOL_MPLS:
1239 mpls_fib_table_walk(mpls_fib_get(fib_index), fn, ctx);
1245 fib_table_sub_tree_walk (u32 fib_index,
1246 fib_protocol_t proto,
1247 const fib_prefix_t *root,
1248 fib_table_walk_fn_t fn,
1253 case FIB_PROTOCOL_IP4:
1254 ip4_fib_table_sub_tree_walk(ip4_fib_get(fib_index), root, fn, ctx);
1256 case FIB_PROTOCOL_IP6:
1257 ip6_fib_table_sub_tree_walk(fib_index, root, fn, ctx);
1259 case FIB_PROTOCOL_MPLS:
1265 fib_table_lock_dec (fib_table_t *fib_table,
1266 fib_source_t source)
1268 vec_validate(fib_table->ft_locks, source);
1270 fib_table->ft_locks[source]--;
1271 fib_table->ft_total_locks--;
1275 fib_table_lock_inc (fib_table_t *fib_table,
1276 fib_source_t source)
1278 vec_validate(fib_table->ft_locks, source);
1280 ASSERT(fib_table->ft_locks[source] < (0xffff - 1));
1281 fib_table->ft_locks[source]++;
1282 fib_table->ft_total_locks++;
1286 fib_table_unlock (u32 fib_index,
1287 fib_protocol_t proto,
1288 fib_source_t source)
1290 fib_table_t *fib_table;
1292 fib_table = fib_table_get(fib_index, proto);
1293 fib_table_lock_dec(fib_table, source);
1295 if (0 == fib_table->ft_total_locks)
1298 * no more locak from any source - kill it
1300 fib_table_destroy(fib_table);
1305 fib_table_lock (u32 fib_index,
1306 fib_protocol_t proto,
1307 fib_source_t source)
1309 fib_table_t *fib_table;
1311 fib_table = fib_table_get(fib_index, proto);
1313 fib_table_lock_inc(fib_table, source);
1317 fib_table_get_num_entries (u32 fib_index,
1318 fib_protocol_t proto,
1319 fib_source_t source)
1321 fib_table_t *fib_table;
1323 fib_table = fib_table_get(fib_index, proto);
1325 return (fib_table->ft_src_route_counts[source]);
1329 format_fib_table_name (u8* s, va_list* ap)
1331 fib_node_index_t fib_index = va_arg(*ap, fib_node_index_t);
1332 fib_protocol_t proto = va_arg(*ap, int); // int promotion
1333 fib_table_t *fib_table;
1335 fib_table = fib_table_get(fib_index, proto);
1337 s = format(s, "%v", fib_table->ft_desc);
1343 format_fib_table_flags (u8 *s, va_list *args)
1345 fib_table_flags_t flags = va_arg(*args, int);
1346 fib_table_attribute_t attr;
1350 return format(s, "none");
1353 FOR_EACH_FIB_TABLE_ATTRIBUTE(attr) {
1354 if (1 << attr & flags) {
1355 s = format(s, "%s", fib_table_flags_strings[attr]);
1363 * @brief Table flush context. Store the indicies of matching FIB entries
1364 * that need to be removed.
1366 typedef struct fib_table_flush_ctx_t_
1369 * The list of entries to flush
1371 fib_node_index_t *ftf_entries;
1374 * The source we are flushing
1376 fib_source_t ftf_source;
1377 } fib_table_flush_ctx_t;
1379 static fib_table_walk_rc_t
1380 fib_table_flush_cb (fib_node_index_t fib_entry_index,
1383 fib_table_flush_ctx_t *ctx = arg;
1385 if (fib_entry_is_sourced(fib_entry_index, ctx->ftf_source))
1387 vec_add1(ctx->ftf_entries, fib_entry_index);
1389 return (FIB_TABLE_WALK_CONTINUE);
1393 fib_table_flush (u32 fib_index,
1394 fib_protocol_t proto,
1395 fib_source_t source)
1397 fib_node_index_t *fib_entry_index;
1398 fib_table_flush_ctx_t ctx = {
1399 .ftf_entries = NULL,
1400 .ftf_source = source,
1403 fib_table_walk(fib_index, proto,
1407 vec_foreach(fib_entry_index, ctx.ftf_entries)
1409 fib_table_entry_delete_index(*fib_entry_index, source);
1412 vec_free(ctx.ftf_entries);
1415 static fib_table_walk_rc_t
1416 fib_table_mark_cb (fib_node_index_t fib_entry_index,
1419 fib_table_flush_ctx_t *ctx = arg;
1421 if (fib_entry_is_sourced(fib_entry_index, ctx->ftf_source))
1423 fib_entry_mark(fib_entry_index, ctx->ftf_source);
1425 return (FIB_TABLE_WALK_CONTINUE);
1429 fib_table_mark (u32 fib_index,
1430 fib_protocol_t proto,
1431 fib_source_t source)
1433 fib_table_flush_ctx_t ctx = {
1434 .ftf_source = source,
1436 fib_table_t *fib_table;
1438 fib_table = fib_table_get(fib_index, proto);
1440 fib_table->ft_epoch++;
1441 fib_table->ft_flags |= FIB_TABLE_FLAG_RESYNC;
1443 fib_table_walk(fib_index, proto,
1448 static fib_table_walk_rc_t
1449 fib_table_sweep_cb (fib_node_index_t fib_entry_index,
1452 fib_table_flush_ctx_t *ctx = arg;
1454 if (fib_entry_is_marked(fib_entry_index, ctx->ftf_source))
1456 vec_add1(ctx->ftf_entries, fib_entry_index);
1458 return (FIB_TABLE_WALK_CONTINUE);
1462 fib_table_sweep (u32 fib_index,
1463 fib_protocol_t proto,
1464 fib_source_t source)
1466 fib_table_flush_ctx_t ctx = {
1467 .ftf_source = source,
1469 fib_node_index_t *fib_entry_index;
1470 fib_table_t *fib_table;
1472 fib_table = fib_table_get(fib_index, proto);
1474 fib_table->ft_flags &= ~FIB_TABLE_FLAG_RESYNC;
1476 fib_table_walk(fib_index, proto,
1480 vec_foreach(fib_entry_index, ctx.ftf_entries)
1482 fib_table_entry_delete_index(*fib_entry_index, source);
1485 vec_free(ctx.ftf_entries);
1489 format_fib_table_memory (u8 *s, va_list *args)
1491 s = format(s, "%U", format_ip4_fib_table_memory);
1492 s = format(s, "%U", format_ip6_fib_table_memory);
1493 s = format(s, "%U", format_mpls_fib_table_memory);