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 else if (fib_route_path_is_attached(path))
536 path->frp_flags |= FIB_ROUTE_PATH_GLEAN;
537 fib_prefix_normalize(prefix, &path->frp_connected);
539 if (*eflags & FIB_ENTRY_FLAG_DROP)
541 path->frp_flags |= FIB_ROUTE_PATH_DROP;
543 if (*eflags & FIB_ENTRY_FLAG_LOCAL)
545 path->frp_flags |= FIB_ROUTE_PATH_LOCAL;
547 if (*eflags & FIB_ENTRY_FLAG_EXCLUSIVE)
549 path->frp_flags |= FIB_ROUTE_PATH_EXCLUSIVE;
551 if (path->frp_flags & FIB_ROUTE_PATH_LOCAL)
553 *eflags |= FIB_ENTRY_FLAG_LOCAL;
555 if (path->frp_sw_if_index != ~0)
557 *eflags |= FIB_ENTRY_FLAG_CONNECTED;
563 fib_table_entry_path_add (u32 fib_index,
564 const fib_prefix_t *prefix,
566 fib_entry_flag_t flags,
567 dpo_proto_t next_hop_proto,
568 const ip46_address_t *next_hop,
569 u32 next_hop_sw_if_index,
570 u32 next_hop_fib_index,
572 fib_mpls_label_t *next_hop_labels,
573 fib_route_path_flags_t path_flags)
575 fib_route_path_t path = {
576 .frp_proto = next_hop_proto,
577 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
578 .frp_sw_if_index = next_hop_sw_if_index,
579 .frp_fib_index = next_hop_fib_index,
580 .frp_weight = next_hop_weight,
581 .frp_flags = path_flags,
582 .frp_rpf_id = INDEX_INVALID,
583 .frp_label_stack = next_hop_labels,
585 fib_node_index_t fib_entry_index;
586 fib_route_path_t *paths = NULL;
588 vec_add1(paths, path);
590 fib_entry_index = fib_table_entry_path_add2(fib_index, prefix,
591 source, flags, paths);
594 return (fib_entry_index);
598 fib_route_path_cmp_for_sort (void * v1,
601 return (fib_route_path_cmp(v1, v2));
605 fib_table_entry_path_add2 (u32 fib_index,
606 const fib_prefix_t *prefix,
608 fib_entry_flag_t flags,
609 fib_route_path_t *rpaths)
611 fib_node_index_t fib_entry_index;
612 fib_table_t *fib_table;
615 fib_table = fib_table_get(fib_index, prefix->fp_proto);
616 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
618 for (ii = 0; ii < vec_len(rpaths); ii++)
620 fib_table_route_path_fixup(prefix, &flags, &rpaths[ii]);
623 * sort the paths provided by the control plane. this means
624 * the paths and the extension on the entry will be sorted.
626 vec_sort_with_function(rpaths, fib_route_path_cmp_for_sort);
628 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
630 fib_entry_index = fib_entry_create(fib_index, prefix,
634 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
635 fib_table_source_count_inc(fib_table, source);
641 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
642 fib_entry_path_add(fib_entry_index, source, flags, rpaths);;
644 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
646 fib_table_source_count_inc(fib_table, source);
650 return (fib_entry_index);
654 fib_table_entry_path_remove2 (u32 fib_index,
655 const fib_prefix_t *prefix,
657 fib_route_path_t *rpaths)
661 * yes => remove source
662 * 2 - is it still sourced?
665 fib_node_index_t fib_entry_index;
666 fib_route_path_t *rpath;
667 fib_table_t *fib_table;
669 fib_table = fib_table_get(fib_index, prefix->fp_proto);
670 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
672 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
675 * removing an etry that does not exist. i'll allow it.
680 fib_entry_src_flag_t src_flag;
684 * if it's not sourced, then there's nowt to remove
686 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
693 * don't nobody go nowhere
695 fib_entry_lock(fib_entry_index);
697 vec_foreach(rpath, rpaths)
699 fib_entry_flag_t eflags;
701 eflags = fib_entry_get_flags_for_source(fib_entry_index,
703 fib_table_route_path_fixup(prefix, &eflags, rpath);
706 src_flag = fib_entry_path_remove(fib_entry_index, source, rpaths);
708 if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
711 * last source gone. remove from the table
713 fib_table_entry_remove(fib_table, prefix, fib_entry_index);
716 * now the entry is no longer in the table, we can
717 * inform the entries that it covers to re-calculate their cover
719 fib_entry_cover_change_notify(fib_entry_index,
720 FIB_NODE_INDEX_INVALID);
724 * still has sources, leave it be.
726 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
728 fib_table_source_count_dec(fib_table, source);
731 fib_entry_unlock(fib_entry_index);
736 fib_table_entry_path_remove (u32 fib_index,
737 const fib_prefix_t *prefix,
739 dpo_proto_t next_hop_proto,
740 const ip46_address_t *next_hop,
741 u32 next_hop_sw_if_index,
742 u32 next_hop_fib_index,
744 fib_route_path_flags_t path_flags)
748 * yes => remove source
749 * 2 - is it still sourced?
752 fib_route_path_t path = {
753 .frp_proto = next_hop_proto,
754 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
755 .frp_sw_if_index = next_hop_sw_if_index,
756 .frp_fib_index = next_hop_fib_index,
757 .frp_weight = next_hop_weight,
758 .frp_flags = path_flags,
760 fib_route_path_t *paths = NULL;
762 vec_add1(paths, path);
764 fib_table_entry_path_remove2(fib_index, prefix, source, paths);
770 fib_table_entry_update (u32 fib_index,
771 const fib_prefix_t *prefix,
773 fib_entry_flag_t flags,
774 fib_route_path_t *paths)
776 fib_node_index_t fib_entry_index;
777 fib_table_t *fib_table;
780 fib_table = fib_table_get(fib_index, prefix->fp_proto);
781 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
783 for (ii = 0; ii < vec_len(paths); ii++)
785 fib_table_route_path_fixup(prefix, &flags, &paths[ii]);
788 * sort the paths provided by the control plane. this means
789 * the paths and the extension on the entry will be sorted.
791 vec_sort_with_function(paths, fib_route_path_cmp_for_sort);
793 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
795 fib_entry_index = fib_entry_create(fib_index, prefix,
799 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
800 fib_table_source_count_inc(fib_table, source);
806 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
807 fib_entry_update(fib_entry_index, source, flags, paths);
809 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
811 fib_table_source_count_inc(fib_table, source);
815 return (fib_entry_index);
819 fib_table_entry_update_one_path (u32 fib_index,
820 const fib_prefix_t *prefix,
822 fib_entry_flag_t flags,
823 dpo_proto_t next_hop_proto,
824 const ip46_address_t *next_hop,
825 u32 next_hop_sw_if_index,
826 u32 next_hop_fib_index,
828 fib_mpls_label_t *next_hop_labels,
829 fib_route_path_flags_t path_flags)
831 fib_node_index_t fib_entry_index;
832 fib_route_path_t path = {
833 .frp_proto = next_hop_proto,
834 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
835 .frp_sw_if_index = next_hop_sw_if_index,
836 .frp_fib_index = next_hop_fib_index,
837 .frp_weight = next_hop_weight,
838 .frp_flags = path_flags,
839 .frp_label_stack = next_hop_labels,
841 fib_route_path_t *paths = NULL;
843 vec_add1(paths, path);
846 fib_table_entry_update(fib_index, prefix, source, flags, paths);
850 return (fib_entry_index);
854 fib_table_entry_delete_i (u32 fib_index,
855 fib_node_index_t fib_entry_index,
856 const fib_prefix_t *prefix,
859 fib_entry_src_flag_t src_flag;
860 fib_table_t *fib_table;
863 fib_table = fib_table_get(fib_index, prefix->fp_proto);
864 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
867 * don't nobody go nowhere
869 fib_entry_lock(fib_entry_index);
871 src_flag = fib_entry_delete(fib_entry_index, source);
873 if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
876 * last source gone. remove from the table
878 fib_table_entry_remove(fib_table, prefix, fib_entry_index);
881 * now the entry is no longer in the table, we can
882 * inform the entries that it covers to re-calculate their cover
884 fib_entry_cover_change_notify(fib_entry_index,
885 FIB_NODE_INDEX_INVALID);
889 * still has sources, leave it be.
891 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
893 fib_table_source_count_dec(fib_table, source);
896 fib_entry_unlock(fib_entry_index);
900 fib_table_entry_delete (u32 fib_index,
901 const fib_prefix_t *prefix,
904 fib_node_index_t fib_entry_index;
906 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
908 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
911 * removing an etry that does not exist.
912 * i'll allow it, but i won't like it.
915 clib_warning("%U not in FIB", format_fib_prefix, prefix);
919 fib_table_entry_delete_i(fib_index, fib_entry_index, prefix, source);
924 fib_table_entry_delete_index (fib_node_index_t fib_entry_index,
927 const fib_prefix_t *prefix;
929 prefix = fib_entry_get_prefix(fib_entry_index);
931 fib_table_entry_delete_i(fib_entry_get_fib_index(fib_entry_index),
932 fib_entry_index, prefix, source);
936 fib_table_entry_get_stats_index (u32 fib_index,
937 const fib_prefix_t *prefix)
939 return (fib_entry_get_stats_index(
940 fib_table_lookup_exact_match(fib_index, prefix)));
944 fib_table_entry_local_label_add (u32 fib_index,
945 const fib_prefix_t *prefix,
948 fib_node_index_t fib_entry_index;
950 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
952 if (FIB_NODE_INDEX_INVALID == fib_entry_index ||
953 !fib_entry_is_sourced(fib_entry_index, FIB_SOURCE_MPLS))
956 * only source the prefix once. this allows the label change
959 fib_entry_index = fib_table_entry_special_dpo_add(fib_index, prefix,
965 fib_entry_set_source_data(fib_entry_index, FIB_SOURCE_MPLS, &label);
967 return (fib_entry_index);
971 fib_table_entry_local_label_remove (u32 fib_index,
972 const fib_prefix_t *prefix,
975 fib_node_index_t fib_entry_index;
979 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
981 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
984 data = fib_entry_get_source_data(fib_entry_index, FIB_SOURCE_MPLS);
989 pl = *(mpls_label_t*)data;
994 pl = MPLS_LABEL_INVALID;
996 fib_entry_set_source_data(fib_entry_index, FIB_SOURCE_MPLS, &pl);
997 fib_table_entry_special_remove(fib_index,
1003 fib_table_get_index_for_sw_if_index (fib_protocol_t proto,
1008 case FIB_PROTOCOL_IP4:
1009 return (ip4_fib_table_get_index_for_sw_if_index(sw_if_index));
1010 case FIB_PROTOCOL_IP6:
1011 return (ip6_fib_table_get_index_for_sw_if_index(sw_if_index));
1012 case FIB_PROTOCOL_MPLS:
1013 return (mpls_fib_table_get_index_for_sw_if_index(sw_if_index));
1019 fib_table_get_flow_hash_config (u32 fib_index,
1020 fib_protocol_t proto)
1024 fib = fib_table_get(fib_index, proto);
1026 return (fib->ft_flow_hash_config);
1030 fib_table_get_default_flow_hash_config (fib_protocol_t proto)
1034 case FIB_PROTOCOL_IP4:
1035 case FIB_PROTOCOL_IP6:
1036 return (IP_FLOW_HASH_DEFAULT);
1038 case FIB_PROTOCOL_MPLS:
1039 return (MPLS_FLOW_HASH_DEFAULT);
1043 return (IP_FLOW_HASH_DEFAULT);
1047 * @brief Table set flow hash config context.
1049 typedef struct fib_table_set_flow_hash_config_ctx_t_
1052 * the flow hash config to set
1054 flow_hash_config_t hash_config;
1055 } fib_table_set_flow_hash_config_ctx_t;
1057 static fib_table_walk_rc_t
1058 fib_table_set_flow_hash_config_cb (fib_node_index_t fib_entry_index,
1061 fib_table_set_flow_hash_config_ctx_t *ctx = arg;
1063 fib_entry_set_flow_hash_config(fib_entry_index, ctx->hash_config);
1065 return (FIB_TABLE_WALK_CONTINUE);
1069 fib_table_set_flow_hash_config (u32 fib_index,
1070 fib_protocol_t proto,
1071 flow_hash_config_t hash_config)
1073 fib_table_set_flow_hash_config_ctx_t ctx = {
1074 .hash_config = hash_config,
1078 fib = fib_table_get(fib_index, proto);
1079 fib->ft_flow_hash_config = hash_config;
1081 fib_table_walk(fib_index, proto,
1082 fib_table_set_flow_hash_config_cb,
1087 fib_table_get_table_id_for_sw_if_index (fib_protocol_t proto,
1090 fib_table_t *fib_table;
1092 fib_table = fib_table_get(fib_table_get_index_for_sw_if_index(
1093 proto, sw_if_index),
1096 return ((NULL != fib_table ? fib_table->ft_table_id : ~0));
1100 fib_table_get_table_id (u32 fib_index,
1101 fib_protocol_t proto)
1103 fib_table_t *fib_table;
1105 fib_table = fib_table_get(fib_index, proto);
1107 return ((NULL != fib_table ? fib_table->ft_table_id : ~0));
1111 fib_table_find (fib_protocol_t proto,
1116 case FIB_PROTOCOL_IP4:
1117 return (ip4_fib_index_from_table_id(table_id));
1118 case FIB_PROTOCOL_IP6:
1119 return (ip6_fib_index_from_table_id(table_id));
1120 case FIB_PROTOCOL_MPLS:
1121 return (mpls_fib_index_from_table_id(table_id));
1127 fib_table_find_or_create_and_lock_i (fib_protocol_t proto,
1132 fib_table_t *fib_table;
1133 fib_node_index_t fi;
1137 case FIB_PROTOCOL_IP4:
1138 fi = ip4_fib_table_find_or_create_and_lock(table_id, src);
1140 case FIB_PROTOCOL_IP6:
1141 fi = ip6_fib_table_find_or_create_and_lock(table_id, src);
1143 case FIB_PROTOCOL_MPLS:
1144 fi = mpls_fib_table_find_or_create_and_lock(table_id, src);
1150 fib_table = fib_table_get(fi, proto);
1152 if (NULL == fib_table->ft_desc)
1154 if (name && name[0])
1156 fib_table->ft_desc = format(NULL, "%s", name);
1160 fib_table->ft_desc = format(NULL, "%U-VRF:%d",
1161 format_fib_protocol, proto,
1170 fib_table_find_or_create_and_lock (fib_protocol_t proto,
1174 return (fib_table_find_or_create_and_lock_i(proto, table_id,
1179 fib_table_find_or_create_and_lock_w_name (fib_protocol_t proto,
1184 return (fib_table_find_or_create_and_lock_i(proto, table_id,
1189 fib_table_create_and_lock (fib_protocol_t proto,
1191 const char *const fmt,
1194 fib_table_t *fib_table;
1195 fib_node_index_t fi;
1201 case FIB_PROTOCOL_IP4:
1202 fi = ip4_fib_table_create_and_lock(src);
1204 case FIB_PROTOCOL_IP6:
1205 fi = ip6_fib_table_create_and_lock(src, FIB_TABLE_FLAG_NONE, NULL);
1207 case FIB_PROTOCOL_MPLS:
1208 fi = mpls_fib_table_create_and_lock(src);
1214 fib_table = fib_table_get(fi, proto);
1218 fib_table->ft_desc = va_format(fib_table->ft_desc, fmt, &ap);
1225 fib_table_destroy (fib_table_t *fib_table)
1227 vec_free(fib_table->ft_desc);
1229 switch (fib_table->ft_proto)
1231 case FIB_PROTOCOL_IP4:
1232 ip4_fib_table_destroy(fib_table->ft_index);
1234 case FIB_PROTOCOL_IP6:
1235 ip6_fib_table_destroy(fib_table->ft_index);
1237 case FIB_PROTOCOL_MPLS:
1238 mpls_fib_table_destroy(fib_table->ft_index);
1244 fib_table_walk (u32 fib_index,
1245 fib_protocol_t proto,
1246 fib_table_walk_fn_t fn,
1251 case FIB_PROTOCOL_IP4:
1252 ip4_fib_table_walk(ip4_fib_get(fib_index), fn, ctx);
1254 case FIB_PROTOCOL_IP6:
1255 ip6_fib_table_walk(fib_index, fn, ctx);
1257 case FIB_PROTOCOL_MPLS:
1258 mpls_fib_table_walk(mpls_fib_get(fib_index), fn, ctx);
1263 typedef struct fib_table_walk_w_src_ctx_t_
1265 fib_table_walk_fn_t fn;
1268 } fib_table_walk_w_src_cxt_t;
1270 static fib_table_walk_rc_t
1271 fib_table_walk_w_src_cb (fib_node_index_t fei,
1274 fib_table_walk_w_src_cxt_t *ctx = arg;
1276 if (ctx->src == fib_entry_get_best_source(fei))
1278 return (ctx->fn(fei, ctx->data));
1280 return (FIB_TABLE_WALK_CONTINUE);
1284 fib_table_walk_w_src (u32 fib_index,
1285 fib_protocol_t proto,
1287 fib_table_walk_fn_t fn,
1290 fib_table_walk_w_src_cxt_t ctx = {
1296 fib_table_walk(fib_index, proto, fib_table_walk_w_src_cb, &ctx);
1300 fib_table_sub_tree_walk (u32 fib_index,
1301 fib_protocol_t proto,
1302 const fib_prefix_t *root,
1303 fib_table_walk_fn_t fn,
1308 case FIB_PROTOCOL_IP4:
1309 ip4_fib_table_sub_tree_walk(ip4_fib_get(fib_index), root, fn, ctx);
1311 case FIB_PROTOCOL_IP6:
1312 ip6_fib_table_sub_tree_walk(fib_index, root, fn, ctx);
1314 case FIB_PROTOCOL_MPLS:
1320 fib_table_lock_dec (fib_table_t *fib_table,
1321 fib_source_t source)
1323 vec_validate(fib_table->ft_locks, source);
1325 ASSERT(fib_table->ft_locks[source] > 0);
1326 fib_table->ft_locks[source]--;
1327 fib_table->ft_total_locks--;
1331 fib_table_lock_inc (fib_table_t *fib_table,
1332 fib_source_t source)
1334 vec_validate(fib_table->ft_locks, source);
1336 ASSERT(fib_table->ft_total_locks < (0xffffffff - 1));
1337 fib_table->ft_locks[source]++;
1338 fib_table->ft_total_locks++;
1343 fib_table_lock_clear (fib_table_t *fib_table,
1344 fib_source_t source)
1346 vec_validate(fib_table->ft_locks, source);
1348 ASSERT(fib_table->ft_locks[source] <= 1);
1349 if (fib_table->ft_locks[source])
1351 fib_table->ft_locks[source]--;
1352 fib_table->ft_total_locks--;
1357 fib_table_lock_set (fib_table_t *fib_table,
1358 fib_source_t source)
1360 vec_validate(fib_table->ft_locks, source);
1362 ASSERT(fib_table->ft_locks[source] <= 1);
1363 ASSERT(fib_table->ft_total_locks < (0xffffffff - 1));
1364 if (!fib_table->ft_locks[source])
1366 fib_table->ft_locks[source]++;
1367 fib_table->ft_total_locks++;
1372 fib_table_unlock (u32 fib_index,
1373 fib_protocol_t proto,
1374 fib_source_t source)
1376 fib_table_t *fib_table;
1378 fib_table = fib_table_get(fib_index, proto);
1380 if (source == FIB_SOURCE_API || source == FIB_SOURCE_CLI)
1381 fib_table_lock_clear(fib_table, source);
1383 fib_table_lock_dec(fib_table, source);
1385 if (0 == fib_table->ft_total_locks)
1388 * no more lock from any source - kill it
1390 fib_table_destroy(fib_table);
1395 fib_table_lock (u32 fib_index,
1396 fib_protocol_t proto,
1397 fib_source_t source)
1399 fib_table_t *fib_table;
1401 fib_table = fib_table_get(fib_index, proto);
1403 if (source == FIB_SOURCE_API || source == FIB_SOURCE_CLI)
1404 fib_table_lock_set(fib_table, source);
1406 fib_table_lock_inc(fib_table, source);
1410 fib_table_get_num_entries (u32 fib_index,
1411 fib_protocol_t proto,
1412 fib_source_t source)
1414 fib_table_t *fib_table;
1416 fib_table = fib_table_get(fib_index, proto);
1418 return (fib_table->ft_src_route_counts[source]);
1422 format_fib_table_name (u8* s, va_list* ap)
1424 fib_node_index_t fib_index = va_arg(*ap, fib_node_index_t);
1425 fib_protocol_t proto = va_arg(*ap, int); // int promotion
1426 fib_table_t *fib_table;
1428 fib_table = fib_table_get(fib_index, proto);
1430 s = format(s, "%v", fib_table->ft_desc);
1436 format_fib_table_flags (u8 *s, va_list *args)
1438 fib_table_flags_t flags = va_arg(*args, int);
1439 fib_table_attribute_t attr;
1443 return format(s, "none");
1446 FOR_EACH_FIB_TABLE_ATTRIBUTE(attr) {
1447 if (1 << attr & flags) {
1448 s = format(s, "%s", fib_table_flags_strings[attr]);
1456 * @brief Table flush context. Store the indicies of matching FIB entries
1457 * that need to be removed.
1459 typedef struct fib_table_flush_ctx_t_
1462 * The list of entries to flush
1464 fib_node_index_t *ftf_entries;
1467 * The source we are flushing
1469 fib_source_t ftf_source;
1470 } fib_table_flush_ctx_t;
1472 static fib_table_walk_rc_t
1473 fib_table_flush_cb (fib_node_index_t fib_entry_index,
1476 fib_table_flush_ctx_t *ctx = arg;
1478 if (fib_entry_is_sourced(fib_entry_index, ctx->ftf_source))
1480 vec_add1(ctx->ftf_entries, fib_entry_index);
1482 return (FIB_TABLE_WALK_CONTINUE);
1486 fib_table_flush (u32 fib_index,
1487 fib_protocol_t proto,
1488 fib_source_t source)
1490 fib_node_index_t *fib_entry_index;
1491 fib_table_flush_ctx_t ctx = {
1492 .ftf_entries = NULL,
1493 .ftf_source = source,
1496 fib_table_walk(fib_index, proto,
1500 vec_foreach(fib_entry_index, ctx.ftf_entries)
1502 fib_table_entry_delete_index(*fib_entry_index, source);
1505 vec_free(ctx.ftf_entries);
1508 static fib_table_walk_rc_t
1509 fib_table_mark_cb (fib_node_index_t fib_entry_index,
1512 fib_table_flush_ctx_t *ctx = arg;
1514 if (fib_entry_is_sourced(fib_entry_index, ctx->ftf_source))
1516 fib_entry_mark(fib_entry_index, ctx->ftf_source);
1518 return (FIB_TABLE_WALK_CONTINUE);
1522 fib_table_mark (u32 fib_index,
1523 fib_protocol_t proto,
1524 fib_source_t source)
1526 fib_table_flush_ctx_t ctx = {
1527 .ftf_source = source,
1529 fib_table_t *fib_table;
1531 fib_table = fib_table_get(fib_index, proto);
1533 fib_table->ft_epoch++;
1534 fib_table->ft_flags |= FIB_TABLE_FLAG_RESYNC;
1536 fib_table_walk(fib_index, proto,
1541 static fib_table_walk_rc_t
1542 fib_table_sweep_cb (fib_node_index_t fib_entry_index,
1545 fib_table_flush_ctx_t *ctx = arg;
1547 if (fib_entry_is_marked(fib_entry_index, ctx->ftf_source))
1549 vec_add1(ctx->ftf_entries, fib_entry_index);
1551 return (FIB_TABLE_WALK_CONTINUE);
1555 fib_table_sweep (u32 fib_index,
1556 fib_protocol_t proto,
1557 fib_source_t source)
1559 fib_table_flush_ctx_t ctx = {
1560 .ftf_source = source,
1562 fib_node_index_t *fib_entry_index;
1563 fib_table_t *fib_table;
1565 fib_table = fib_table_get(fib_index, proto);
1567 fib_table->ft_flags &= ~FIB_TABLE_FLAG_RESYNC;
1569 fib_table_walk(fib_index, proto,
1573 vec_foreach(fib_entry_index, ctx.ftf_entries)
1575 fib_table_entry_delete_index(*fib_entry_index, source);
1578 vec_free(ctx.ftf_entries);
1582 format_fib_table_memory (u8 *s, va_list *args)
1584 s = format(s, "%U", format_ip4_fib_table_memory);
1585 s = format(s, "%U", format_ip6_fib_table_memory);
1586 s = format(s, "%U", format_mpls_fib_table_memory);