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>
27 fib_table_get (fib_node_index_t index,
32 case FIB_PROTOCOL_IP4:
33 return (pool_elt_at_index(ip4_main.fibs, index));
34 case FIB_PROTOCOL_IP6:
35 return (pool_elt_at_index(ip6_main.fibs, index));
36 case FIB_PROTOCOL_MPLS:
37 return (pool_elt_at_index(mpls_main.fibs, index));
43 static inline fib_node_index_t
44 fib_table_lookup_i (fib_table_t *fib_table,
45 const fib_prefix_t *prefix)
47 switch (prefix->fp_proto)
49 case FIB_PROTOCOL_IP4:
50 return (ip4_fib_table_lookup(ip4_fib_get(fib_table->ft_index),
53 case FIB_PROTOCOL_IP6:
54 return (ip6_fib_table_lookup(fib_table->ft_index,
57 case FIB_PROTOCOL_MPLS:
58 return (mpls_fib_table_lookup(mpls_fib_get(fib_table->ft_index),
62 return (FIB_NODE_INDEX_INVALID);
66 fib_table_lookup (u32 fib_index,
67 const fib_prefix_t *prefix)
69 return (fib_table_lookup_i(fib_table_get(fib_index, prefix->fp_proto), prefix));
72 static inline fib_node_index_t
73 fib_table_lookup_exact_match_i (const fib_table_t *fib_table,
74 const fib_prefix_t *prefix)
76 switch (prefix->fp_proto)
78 case FIB_PROTOCOL_IP4:
79 return (ip4_fib_table_lookup_exact_match(ip4_fib_get(fib_table->ft_index),
82 case FIB_PROTOCOL_IP6:
83 return (ip6_fib_table_lookup_exact_match(fib_table->ft_index,
86 case FIB_PROTOCOL_MPLS:
87 return (mpls_fib_table_lookup(mpls_fib_get(fib_table->ft_index),
91 return (FIB_NODE_INDEX_INVALID);
95 fib_table_lookup_exact_match (u32 fib_index,
96 const fib_prefix_t *prefix)
98 return (fib_table_lookup_exact_match_i(fib_table_get(fib_index,
103 static fib_node_index_t
104 fib_table_get_less_specific_i (fib_table_t *fib_table,
105 const fib_prefix_t *prefix)
111 if (FIB_PROTOCOL_MPLS == pfx.fp_proto)
113 return (FIB_NODE_INDEX_INVALID);
117 * in the absence of a tree structure for the table that allows for an O(1)
118 * parent get, a cheeky way to find the cover is to LPM for the prefix with
120 * there should always be a cover, though it may be the default route. the
121 * default route's cover is the default route.
123 if (pfx.fp_len != 0) {
127 return (fib_table_lookup_i(fib_table, &pfx));
131 fib_table_get_less_specific (u32 fib_index,
132 const fib_prefix_t *prefix)
134 return (fib_table_get_less_specific_i(fib_table_get(fib_index,
140 fib_table_entry_remove (fib_table_t *fib_table,
141 const fib_prefix_t *prefix,
142 fib_node_index_t fib_entry_index)
144 vlib_smp_unsafe_warning();
146 fib_table->ft_total_route_counts--;
148 switch (prefix->fp_proto)
150 case FIB_PROTOCOL_IP4:
151 ip4_fib_table_entry_remove(ip4_fib_get(fib_table->ft_index),
152 &prefix->fp_addr.ip4,
155 case FIB_PROTOCOL_IP6:
156 ip6_fib_table_entry_remove(fib_table->ft_index,
157 &prefix->fp_addr.ip6,
160 case FIB_PROTOCOL_MPLS:
161 mpls_fib_table_entry_remove(mpls_fib_get(fib_table->ft_index),
167 fib_entry_unlock(fib_entry_index);
171 fib_table_post_insert_actions (fib_table_t *fib_table,
172 const fib_prefix_t *prefix,
173 fib_node_index_t fib_entry_index)
175 fib_node_index_t fib_entry_cover_index;
178 * no cover relationships in the MPLS FIB
180 if (FIB_PROTOCOL_MPLS == prefix->fp_proto)
184 * find and inform the covering entry that a new more specific
185 * has been inserted beneath it
187 fib_entry_cover_index = fib_table_get_less_specific_i(fib_table, prefix);
189 * the indicies are the same when the default route is first added
191 if (fib_entry_cover_index != fib_entry_index)
193 fib_entry_cover_change_notify(fib_entry_cover_index,
199 fib_table_entry_insert (fib_table_t *fib_table,
200 const fib_prefix_t *prefix,
201 fib_node_index_t fib_entry_index)
203 vlib_smp_unsafe_warning();
205 fib_entry_lock(fib_entry_index);
206 fib_table->ft_total_route_counts++;
208 switch (prefix->fp_proto)
210 case FIB_PROTOCOL_IP4:
211 ip4_fib_table_entry_insert(ip4_fib_get(fib_table->ft_index),
212 &prefix->fp_addr.ip4,
216 case FIB_PROTOCOL_IP6:
217 ip6_fib_table_entry_insert(fib_table->ft_index,
218 &prefix->fp_addr.ip6,
222 case FIB_PROTOCOL_MPLS:
223 mpls_fib_table_entry_insert(mpls_fib_get(fib_table->ft_index),
230 fib_table_post_insert_actions(fib_table, prefix, fib_entry_index);
234 fib_table_fwding_dpo_update (u32 fib_index,
235 const fib_prefix_t *prefix,
238 vlib_smp_unsafe_warning();
240 switch (prefix->fp_proto)
242 case FIB_PROTOCOL_IP4:
243 return (ip4_fib_table_fwding_dpo_update(ip4_fib_get(fib_index),
244 &prefix->fp_addr.ip4,
247 case FIB_PROTOCOL_IP6:
248 return (ip6_fib_table_fwding_dpo_update(fib_index,
249 &prefix->fp_addr.ip6,
252 case FIB_PROTOCOL_MPLS:
253 return (mpls_fib_forwarding_table_update(mpls_fib_get(fib_index),
261 fib_table_fwding_dpo_remove (u32 fib_index,
262 const fib_prefix_t *prefix,
265 vlib_smp_unsafe_warning();
267 switch (prefix->fp_proto)
269 case FIB_PROTOCOL_IP4:
270 return (ip4_fib_table_fwding_dpo_remove(ip4_fib_get(fib_index),
271 &prefix->fp_addr.ip4,
274 fib_table_get_less_specific(fib_index,
276 case FIB_PROTOCOL_IP6:
277 return (ip6_fib_table_fwding_dpo_remove(fib_index,
278 &prefix->fp_addr.ip6,
281 case FIB_PROTOCOL_MPLS:
282 return (mpls_fib_forwarding_table_reset(mpls_fib_get(fib_index),
290 fib_table_entry_special_dpo_add (u32 fib_index,
291 const fib_prefix_t *prefix,
293 fib_entry_flag_t flags,
296 fib_node_index_t fib_entry_index;
297 fib_table_t *fib_table;
299 fib_table = fib_table_get(fib_index, prefix->fp_proto);
300 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
302 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
304 fib_entry_index = fib_entry_create_special(fib_index, prefix,
308 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
309 fib_table->ft_src_route_counts[source]++;
315 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
316 fib_entry_special_add(fib_entry_index, source, flags, dpo);
318 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
320 fib_table->ft_src_route_counts[source]++;
325 return (fib_entry_index);
329 fib_table_entry_special_dpo_update (u32 fib_index,
330 const fib_prefix_t *prefix,
332 fib_entry_flag_t flags,
335 fib_node_index_t fib_entry_index;
336 fib_table_t *fib_table;
338 fib_table = fib_table_get(fib_index, prefix->fp_proto);
339 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
341 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
343 fib_entry_index = fib_entry_create_special(fib_index, prefix,
347 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
348 fib_table->ft_src_route_counts[source]++;
354 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
357 fib_entry_special_update(fib_entry_index, source, flags, dpo);
359 fib_entry_special_add(fib_entry_index, source, flags, dpo);
361 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
363 fib_table->ft_src_route_counts[source]++;
367 return (fib_entry_index);
371 fib_table_entry_special_add (u32 fib_index,
372 const fib_prefix_t *prefix,
374 fib_entry_flag_t flags)
376 fib_node_index_t fib_entry_index;
377 dpo_id_t tmp_dpo = DPO_INVALID;
379 dpo_copy(&tmp_dpo, drop_dpo_get(fib_proto_to_dpo(prefix->fp_proto)));
381 fib_entry_index = fib_table_entry_special_dpo_add(fib_index, prefix, source,
384 dpo_unlock(&tmp_dpo);
386 return (fib_entry_index);
390 fib_table_entry_special_remove (u32 fib_index,
391 const fib_prefix_t *prefix,
396 * yes => remove source
397 * 2 - is it still sourced?
400 fib_node_index_t fib_entry_index;
401 fib_table_t *fib_table;
403 fib_table = fib_table_get(fib_index, prefix->fp_proto);
404 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
406 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
409 * removing an etry that does not exist. i'll allow it.
414 fib_entry_src_flag_t src_flag;
418 * don't nobody go nowhere
420 fib_entry_lock(fib_entry_index);
421 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
423 src_flag = fib_entry_special_remove(fib_entry_index, source);
425 if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
428 * last source gone. remove from the table
430 fib_table_entry_remove(fib_table, prefix, fib_entry_index);
433 * now the entry is no longer in the table, we can
434 * inform the entries that it covers to re-calculate their cover
436 fib_entry_cover_change_notify(fib_entry_index,
437 FIB_NODE_INDEX_INVALID);
441 * still has sources, leave it be.
443 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
445 fib_table->ft_src_route_counts[source]--;
448 fib_entry_unlock(fib_entry_index);
453 * fib_table_route_path_fixup
455 * Convert attached hosts to attached next-hops.
457 * This special case is required because an attached path will link to a
458 * glean, and the FIB entry will have the interface or API/CLI source. When
459 * the ARP/ND process is completes then that source (which will provide a
460 * complete adjacency) will be lower priority and so the FIB entry will
461 * remain linked to a glean and traffic will never reach the hosts. For
462 * an ATTAHCED_HOST path we can link the path directly to the [incomplete]
466 fib_table_route_path_fixup (const fib_prefix_t *prefix,
467 fib_entry_flag_t eflags,
468 fib_route_path_t *path)
471 * not all zeros next hop &&
472 * is recursive path &&
473 * nexthop is same as the route's address
475 if ((!ip46_address_is_zero(&path->frp_addr)) &&
476 (~0 == path->frp_sw_if_index) &&
477 (0 == ip46_address_cmp(&path->frp_addr, &prefix->fp_addr)))
479 /* Prefix recurses via itse;f */
480 path->frp_flags |= FIB_ROUTE_PATH_DROP;
482 if (fib_prefix_is_host(prefix) &&
483 ip46_address_is_zero(&path->frp_addr) &&
484 path->frp_sw_if_index != ~0)
486 path->frp_addr = prefix->fp_addr;
487 path->frp_flags |= FIB_ROUTE_PATH_ATTACHED;
489 if (eflags & FIB_ENTRY_FLAG_DROP)
491 path->frp_flags |= FIB_ROUTE_PATH_DROP;
493 if (eflags & FIB_ENTRY_FLAG_LOCAL)
495 path->frp_flags |= FIB_ROUTE_PATH_LOCAL;
497 if (eflags & FIB_ENTRY_FLAG_EXCLUSIVE)
499 path->frp_flags |= FIB_ROUTE_PATH_EXCLUSIVE;
504 fib_table_entry_path_add (u32 fib_index,
505 const fib_prefix_t *prefix,
507 fib_entry_flag_t flags,
508 fib_protocol_t next_hop_proto,
509 const ip46_address_t *next_hop,
510 u32 next_hop_sw_if_index,
511 u32 next_hop_fib_index,
513 mpls_label_t *next_hop_labels,
514 fib_route_path_flags_t path_flags)
516 fib_route_path_t path = {
517 .frp_proto = next_hop_proto,
518 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
519 .frp_sw_if_index = next_hop_sw_if_index,
520 .frp_fib_index = next_hop_fib_index,
521 .frp_weight = next_hop_weight,
522 .frp_flags = path_flags,
523 .frp_label_stack = next_hop_labels,
525 fib_node_index_t fib_entry_index;
526 fib_route_path_t *paths = NULL;
528 vec_add1(paths, path);
530 fib_entry_index = fib_table_entry_path_add2(fib_index, prefix,
531 source, flags, paths);
534 return (fib_entry_index);
538 fib_table_entry_path_add2 (u32 fib_index,
539 const fib_prefix_t *prefix,
541 fib_entry_flag_t flags,
542 fib_route_path_t *rpath)
544 fib_node_index_t fib_entry_index;
545 fib_table_t *fib_table;
548 fib_table = fib_table_get(fib_index, prefix->fp_proto);
549 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
551 for (ii = 0; ii < vec_len(rpath); ii++)
553 fib_table_route_path_fixup(prefix, flags, &rpath[ii]);
556 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
558 fib_entry_index = fib_entry_create(fib_index, prefix,
562 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
563 fib_table->ft_src_route_counts[source]++;
569 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
570 fib_entry_path_add(fib_entry_index, source, flags, rpath);;
572 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
574 fib_table->ft_src_route_counts[source]++;
578 return (fib_entry_index);
582 fib_table_entry_path_remove2 (u32 fib_index,
583 const fib_prefix_t *prefix,
585 fib_route_path_t *rpath)
589 * yes => remove source
590 * 2 - is it still sourced?
593 fib_node_index_t fib_entry_index;
594 fib_table_t *fib_table;
597 fib_table = fib_table_get(fib_index, prefix->fp_proto);
598 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
600 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
603 * removing an etry that does not exist. i'll allow it.
608 fib_entry_src_flag_t src_flag;
612 * don't nobody go nowhere
614 fib_entry_lock(fib_entry_index);
615 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
617 for (ii = 0; ii < vec_len(rpath); ii++)
619 fib_table_route_path_fixup(
621 fib_entry_get_flags_for_source(fib_entry_index,
626 src_flag = fib_entry_path_remove(fib_entry_index, source, rpath);
628 if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
631 * last source gone. remove from the table
633 fib_table_entry_remove(fib_table, prefix, fib_entry_index);
636 * now the entry is no longer in the table, we can
637 * inform the entries that it covers to re-calculate their cover
639 fib_entry_cover_change_notify(fib_entry_index,
640 FIB_NODE_INDEX_INVALID);
644 * still has sources, leave it be.
646 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
648 fib_table->ft_src_route_counts[source]--;
651 fib_entry_unlock(fib_entry_index);
656 fib_table_entry_path_remove (u32 fib_index,
657 const fib_prefix_t *prefix,
659 fib_protocol_t next_hop_proto,
660 const ip46_address_t *next_hop,
661 u32 next_hop_sw_if_index,
662 u32 next_hop_fib_index,
664 fib_route_path_flags_t path_flags)
668 * yes => remove source
669 * 2 - is it still sourced?
672 fib_route_path_t path = {
673 .frp_proto = next_hop_proto,
674 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
675 .frp_sw_if_index = next_hop_sw_if_index,
676 .frp_fib_index = next_hop_fib_index,
677 .frp_weight = next_hop_weight,
678 .frp_flags = path_flags,
680 fib_route_path_t *paths = NULL;
682 vec_add1(paths, path);
684 fib_table_entry_path_remove2(fib_index, prefix, source, paths);
690 fib_route_path_cmp_for_sort (void * v1,
693 return (fib_route_path_cmp(v1, v2));
697 fib_table_entry_update (u32 fib_index,
698 const fib_prefix_t *prefix,
700 fib_entry_flag_t flags,
701 fib_route_path_t *paths)
703 fib_node_index_t fib_entry_index;
704 fib_table_t *fib_table;
707 fib_table = fib_table_get(fib_index, prefix->fp_proto);
708 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
710 for (ii = 0; ii < vec_len(paths); ii++)
712 fib_table_route_path_fixup(prefix, flags, &paths[ii]);
715 * sort the paths provided by the control plane. this means
716 * the paths and the extension on the entry will be sorted.
718 vec_sort_with_function(paths, fib_route_path_cmp_for_sort);
720 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
722 fib_entry_index = fib_entry_create(fib_index, prefix,
726 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
727 fib_table->ft_src_route_counts[source]++;
733 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
734 fib_entry_update(fib_entry_index, source, flags, paths);
736 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
738 fib_table->ft_src_route_counts[source]++;
742 return (fib_entry_index);
746 fib_table_entry_update_one_path (u32 fib_index,
747 const fib_prefix_t *prefix,
749 fib_entry_flag_t flags,
750 fib_protocol_t next_hop_proto,
751 const ip46_address_t *next_hop,
752 u32 next_hop_sw_if_index,
753 u32 next_hop_fib_index,
755 mpls_label_t *next_hop_labels,
756 fib_route_path_flags_t path_flags)
758 fib_node_index_t fib_entry_index;
759 fib_route_path_t path = {
760 .frp_proto = next_hop_proto,
761 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
762 .frp_sw_if_index = next_hop_sw_if_index,
763 .frp_fib_index = next_hop_fib_index,
764 .frp_weight = next_hop_weight,
765 .frp_flags = path_flags,
766 .frp_label_stack = next_hop_labels,
768 fib_route_path_t *paths = NULL;
770 vec_add1(paths, path);
773 fib_table_entry_update(fib_index, prefix, source, flags, paths);
777 return (fib_entry_index);
781 fib_table_entry_delete_i (u32 fib_index,
782 fib_node_index_t fib_entry_index,
783 const fib_prefix_t *prefix,
786 fib_entry_src_flag_t src_flag;
787 fib_table_t *fib_table;
790 fib_table = fib_table_get(fib_index, prefix->fp_proto);
791 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
794 * don't nobody go nowhere
796 fib_entry_lock(fib_entry_index);
798 src_flag = fib_entry_delete(fib_entry_index, source);
800 if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
803 * last source gone. remove from the table
805 fib_table_entry_remove(fib_table, prefix, fib_entry_index);
808 * now the entry is no longer in the table, we can
809 * inform the entries that it covers to re-calculate their cover
811 fib_entry_cover_change_notify(fib_entry_index,
812 FIB_NODE_INDEX_INVALID);
816 * still has sources, leave it be.
818 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
820 fib_table->ft_src_route_counts[source]--;
823 fib_entry_unlock(fib_entry_index);
827 fib_table_entry_delete (u32 fib_index,
828 const fib_prefix_t *prefix,
831 fib_node_index_t fib_entry_index;
833 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
835 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
838 * removing an etry that does not exist.
839 * i'll allow it, but i won't like it.
841 clib_warning("%U not in FIB", format_fib_prefix, prefix);
845 fib_table_entry_delete_i(fib_index, fib_entry_index, prefix, source);
850 fib_table_entry_delete_index (fib_node_index_t fib_entry_index,
855 fib_entry_get_prefix(fib_entry_index, &prefix);
857 fib_table_entry_delete_i(fib_entry_get_fib_index(fib_entry_index),
858 fib_entry_index, &prefix, source);
862 fib_table_entry_local_label_add (u32 fib_index,
863 const fib_prefix_t *prefix,
866 fib_node_index_t fib_entry_index;
868 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
870 if (FIB_NODE_INDEX_INVALID == fib_entry_index ||
871 !fib_entry_is_sourced(fib_entry_index, FIB_SOURCE_MPLS))
874 * only source the prefix once. this allows the label change
877 fib_entry_index = fib_table_entry_special_dpo_add(fib_index, prefix,
883 fib_entry_set_source_data(fib_entry_index, FIB_SOURCE_MPLS, &label);
885 return (fib_entry_index);
889 fib_table_entry_local_label_remove (u32 fib_index,
890 const fib_prefix_t *prefix,
893 fib_node_index_t fib_entry_index;
897 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
899 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
902 data = fib_entry_get_source_data(fib_entry_index, FIB_SOURCE_MPLS);
907 pl = *(mpls_label_t*)data;
912 pl = MPLS_LABEL_INVALID;
914 fib_entry_set_source_data(fib_entry_index, FIB_SOURCE_MPLS, &pl);
915 fib_table_entry_special_remove(fib_index,
921 fib_table_get_index_for_sw_if_index (fib_protocol_t proto,
926 case FIB_PROTOCOL_IP4:
927 return (ip4_fib_table_get_index_for_sw_if_index(sw_if_index));
928 case FIB_PROTOCOL_IP6:
929 return (ip6_fib_table_get_index_for_sw_if_index(sw_if_index));
930 case FIB_PROTOCOL_MPLS:
931 return (mpls_fib_table_get_index_for_sw_if_index(sw_if_index));
937 fib_table_get_flow_hash_config (u32 fib_index,
938 fib_protocol_t proto)
942 case FIB_PROTOCOL_IP4:
943 return (ip4_fib_table_get_flow_hash_config(fib_index));
944 case FIB_PROTOCOL_IP6:
945 return (ip6_fib_table_get_flow_hash_config(fib_index));
946 case FIB_PROTOCOL_MPLS:
947 return (mpls_fib_table_get_flow_hash_config(fib_index));
954 fib_table_get_table_id_for_sw_if_index (fib_protocol_t proto,
957 fib_table_t *fib_table;
959 fib_table = fib_table_get(fib_table_get_index_for_sw_if_index(
963 return ((NULL != fib_table ? fib_table->ft_table_id : ~0));
967 fib_table_find (fib_protocol_t proto,
972 case FIB_PROTOCOL_IP4:
973 return (ip4_fib_index_from_table_id(table_id));
974 case FIB_PROTOCOL_IP6:
975 return (ip6_fib_index_from_table_id(table_id));
976 case FIB_PROTOCOL_MPLS:
977 return (mpls_fib_index_from_table_id(table_id));
983 fib_table_find_or_create_and_lock (fib_protocol_t proto,
986 fib_table_t *fib_table;
991 case FIB_PROTOCOL_IP4:
992 fi = ip4_fib_table_find_or_create_and_lock(table_id);
994 case FIB_PROTOCOL_IP6:
995 fi = ip6_fib_table_find_or_create_and_lock(table_id);
997 case FIB_PROTOCOL_MPLS:
998 fi = mpls_fib_table_find_or_create_and_lock(table_id);
1004 fib_table = fib_table_get(fi, proto);
1006 fib_table->ft_desc = format(NULL, "%U-VRF:%d",
1007 format_fib_protocol, proto,
1014 fib_table_create_and_lock (fib_protocol_t proto,
1015 const char *const fmt,
1018 fib_table_t *fib_table;
1019 fib_node_index_t fi;
1026 case FIB_PROTOCOL_IP4:
1027 fi = ip4_fib_table_create_and_lock();
1029 case FIB_PROTOCOL_IP6:
1030 fi = ip6_fib_table_create_and_lock();
1032 case FIB_PROTOCOL_MPLS:
1033 fi = mpls_fib_table_create_and_lock();
1039 fib_table = fib_table_get(fi, proto);
1041 fib_table->ft_desc = va_format(fib_table->ft_desc, fmt, &ap);
1048 fib_table_destroy (fib_table_t *fib_table)
1050 vec_free(fib_table->ft_desc);
1052 switch (fib_table->ft_proto)
1054 case FIB_PROTOCOL_IP4:
1055 ip4_fib_table_destroy(fib_table->ft_index);
1057 case FIB_PROTOCOL_IP6:
1058 ip6_fib_table_destroy(fib_table->ft_index);
1060 case FIB_PROTOCOL_MPLS:
1061 mpls_fib_table_destroy(fib_table->ft_index);
1067 fib_table_walk (u32 fib_index,
1068 fib_protocol_t proto,
1069 fib_table_walk_fn_t fn,
1074 case FIB_PROTOCOL_IP4:
1075 ip4_fib_table_walk(ip4_fib_get(fib_index), fn, ctx);
1077 case FIB_PROTOCOL_IP6:
1078 ip6_fib_table_walk(fib_index, fn, ctx);
1080 case FIB_PROTOCOL_MPLS:
1081 mpls_fib_table_walk(mpls_fib_get(fib_index), fn, ctx);
1087 fib_table_unlock (u32 fib_index,
1088 fib_protocol_t proto)
1090 fib_table_t *fib_table;
1092 fib_table = fib_table_get(fib_index, proto);
1093 fib_table->ft_locks--;
1095 if (0 == fib_table->ft_locks)
1097 fib_table_destroy(fib_table);
1101 fib_table_lock (u32 fib_index,
1102 fib_protocol_t proto)
1104 fib_table_t *fib_table;
1106 fib_table = fib_table_get(fib_index, proto);
1107 fib_table->ft_locks++;
1111 fib_table_get_num_entries (u32 fib_index,
1112 fib_protocol_t proto,
1113 fib_source_t source)
1115 fib_table_t *fib_table;
1117 fib_table = fib_table_get(fib_index, proto);
1119 return (fib_table->ft_src_route_counts[source]);
1123 format_fib_table_name (u8* s, va_list ap)
1125 fib_node_index_t fib_index = va_arg(ap, fib_node_index_t);
1126 fib_protocol_t proto = va_arg(ap, int); // int promotion
1127 fib_table_t *fib_table;
1129 fib_table = fib_table_get(fib_index, proto);
1131 s = format(s, "%v", fib_table->ft_desc);
1137 * @brief Table flush context. Store the indicies of matching FIB entries
1138 * that need to be removed.
1140 typedef struct fib_table_flush_ctx_t_
1143 * The list of entries to flush
1145 fib_node_index_t *ftf_entries;
1148 * The source we are flushing
1150 fib_source_t ftf_source;
1151 } fib_table_flush_ctx_t;
1154 fib_table_flush_cb (fib_node_index_t fib_entry_index,
1157 fib_table_flush_ctx_t *ctx = arg;
1159 if (fib_entry_is_sourced(fib_entry_index, ctx->ftf_source))
1161 vec_add1(ctx->ftf_entries, fib_entry_index);
1168 fib_table_flush (u32 fib_index,
1169 fib_protocol_t proto,
1170 fib_source_t source)
1172 fib_node_index_t *fib_entry_index;
1173 fib_table_flush_ctx_t ctx = {
1174 .ftf_entries = NULL,
1175 .ftf_source = source,
1178 fib_table_walk(fib_index, proto,
1182 vec_foreach(fib_entry_index, ctx.ftf_entries)
1184 fib_table_entry_delete_index(*fib_entry_index, source);
1187 vec_free(ctx.ftf_entries);