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 the covering entry
186 fib_entry_cover_index = fib_table_get_less_specific_i(fib_table, prefix);
188 * the indicies are the same when the default route is first added
190 if (fib_entry_cover_index != fib_entry_index)
193 * push any inherting sources from the cover onto the covered
195 fib_entry_inherit(fib_entry_cover_index,
199 * inform the covering entry that a new more specific
200 * has been inserted beneath it.
201 * If the prefix that has been inserted is a host route
202 * then it is not possible that it will be the cover for any
203 * other entry, so we can elide the walk. This is particularly
204 * beneficial since there are often many host entries sharing the
205 * same cover (i.e. ADJ or RR sourced entries).
207 if (!fib_entry_is_host(fib_entry_index))
209 fib_entry_cover_change_notify(fib_entry_cover_index,
216 fib_table_entry_insert (fib_table_t *fib_table,
217 const fib_prefix_t *prefix,
218 fib_node_index_t fib_entry_index)
220 vlib_smp_unsafe_warning();
222 fib_entry_lock(fib_entry_index);
223 fib_table->ft_total_route_counts++;
225 switch (prefix->fp_proto)
227 case FIB_PROTOCOL_IP4:
228 ip4_fib_table_entry_insert(ip4_fib_get(fib_table->ft_index),
229 &prefix->fp_addr.ip4,
233 case FIB_PROTOCOL_IP6:
234 ip6_fib_table_entry_insert(fib_table->ft_index,
235 &prefix->fp_addr.ip6,
239 case FIB_PROTOCOL_MPLS:
240 mpls_fib_table_entry_insert(mpls_fib_get(fib_table->ft_index),
247 fib_table_post_insert_actions(fib_table, prefix, fib_entry_index);
251 fib_table_fwding_dpo_update (u32 fib_index,
252 const fib_prefix_t *prefix,
255 vlib_smp_unsafe_warning();
257 switch (prefix->fp_proto)
259 case FIB_PROTOCOL_IP4:
260 return (ip4_fib_table_fwding_dpo_update(ip4_fib_get(fib_index),
261 &prefix->fp_addr.ip4,
264 case FIB_PROTOCOL_IP6:
265 return (ip6_fib_table_fwding_dpo_update(fib_index,
266 &prefix->fp_addr.ip6,
269 case FIB_PROTOCOL_MPLS:
270 return (mpls_fib_forwarding_table_update(mpls_fib_get(fib_index),
278 fib_table_fwding_dpo_remove (u32 fib_index,
279 const fib_prefix_t *prefix,
282 vlib_smp_unsafe_warning();
284 switch (prefix->fp_proto)
286 case FIB_PROTOCOL_IP4:
287 return (ip4_fib_table_fwding_dpo_remove(ip4_fib_get(fib_index),
288 &prefix->fp_addr.ip4,
291 fib_table_get_less_specific(fib_index,
293 case FIB_PROTOCOL_IP6:
294 return (ip6_fib_table_fwding_dpo_remove(fib_index,
295 &prefix->fp_addr.ip6,
298 case FIB_PROTOCOL_MPLS:
299 return (mpls_fib_forwarding_table_reset(mpls_fib_get(fib_index),
307 fib_table_entry_special_dpo_add (u32 fib_index,
308 const fib_prefix_t *prefix,
310 fib_entry_flag_t flags,
313 fib_node_index_t fib_entry_index;
314 fib_table_t *fib_table;
316 fib_table = fib_table_get(fib_index, prefix->fp_proto);
317 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
319 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
321 fib_entry_index = fib_entry_create_special(fib_index, prefix,
325 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
326 fib_table->ft_src_route_counts[source]++;
332 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
333 fib_entry_special_add(fib_entry_index, source, flags, dpo);
335 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
337 fib_table->ft_src_route_counts[source]++;
342 return (fib_entry_index);
346 fib_table_entry_special_dpo_update (u32 fib_index,
347 const fib_prefix_t *prefix,
349 fib_entry_flag_t flags,
352 fib_node_index_t fib_entry_index;
353 fib_table_t *fib_table;
355 fib_table = fib_table_get(fib_index, prefix->fp_proto);
356 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
358 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
360 fib_entry_index = fib_entry_create_special(fib_index, prefix,
364 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
365 fib_table->ft_src_route_counts[source]++;
371 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
374 fib_entry_special_update(fib_entry_index, source, flags, dpo);
376 fib_entry_special_add(fib_entry_index, source, flags, dpo);
378 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
380 fib_table->ft_src_route_counts[source]++;
384 return (fib_entry_index);
388 fib_table_entry_special_add (u32 fib_index,
389 const fib_prefix_t *prefix,
391 fib_entry_flag_t flags)
393 fib_node_index_t fib_entry_index;
394 dpo_id_t tmp_dpo = DPO_INVALID;
396 dpo_copy(&tmp_dpo, drop_dpo_get(fib_proto_to_dpo(prefix->fp_proto)));
398 fib_entry_index = fib_table_entry_special_dpo_add(fib_index, prefix, source,
401 dpo_unlock(&tmp_dpo);
403 return (fib_entry_index);
407 fib_table_entry_special_remove (u32 fib_index,
408 const fib_prefix_t *prefix,
413 * yes => remove source
414 * 2 - is it still sourced?
417 fib_node_index_t fib_entry_index;
418 fib_table_t *fib_table;
420 fib_table = fib_table_get(fib_index, prefix->fp_proto);
421 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
423 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
426 * removing an etry that does not exist. i'll allow it.
431 fib_entry_src_flag_t src_flag;
435 * don't nobody go nowhere
437 fib_entry_lock(fib_entry_index);
438 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
440 src_flag = fib_entry_special_remove(fib_entry_index, source);
442 if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
445 * last source gone. remove from the table
447 fib_table_entry_remove(fib_table, prefix, fib_entry_index);
450 * now the entry is no longer in the table, we can
451 * inform the entries that it covers to re-calculate their cover
453 fib_entry_cover_change_notify(fib_entry_index,
454 FIB_NODE_INDEX_INVALID);
458 * still has sources, leave it be.
460 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
462 fib_table->ft_src_route_counts[source]--;
465 fib_entry_unlock(fib_entry_index);
470 * fib_table_route_path_fixup
472 * Convert attached hosts to attached next-hops.
474 * This special case is required because an attached path will link to a
475 * glean, and the FIB entry will have the interface or API/CLI source. When
476 * the ARP/ND process is completes then that source (which will provide a
477 * complete adjacency) will be lower priority and so the FIB entry will
478 * remain linked to a glean and traffic will never reach the hosts. For
479 * an ATTAHCED_HOST path we can link the path directly to the [incomplete]
483 fib_table_route_path_fixup (const fib_prefix_t *prefix,
484 fib_entry_flag_t eflags,
485 fib_route_path_t *path)
488 * not all zeros next hop &&
489 * is recursive path &&
490 * nexthop is same as the route's address
492 if ((!ip46_address_is_zero(&path->frp_addr)) &&
493 (~0 == path->frp_sw_if_index) &&
494 (0 == ip46_address_cmp(&path->frp_addr, &prefix->fp_addr)))
496 /* Prefix recurses via itse;f */
497 path->frp_flags |= FIB_ROUTE_PATH_DROP;
499 if (fib_prefix_is_host(prefix) &&
500 ip46_address_is_zero(&path->frp_addr) &&
501 path->frp_sw_if_index != ~0 &&
502 path->frp_proto != DPO_PROTO_ETHERNET)
504 path->frp_addr = prefix->fp_addr;
505 path->frp_flags |= FIB_ROUTE_PATH_ATTACHED;
507 if (eflags & FIB_ENTRY_FLAG_DROP)
509 path->frp_flags |= FIB_ROUTE_PATH_DROP;
511 if (eflags & FIB_ENTRY_FLAG_LOCAL)
513 path->frp_flags |= FIB_ROUTE_PATH_LOCAL;
515 if (eflags & FIB_ENTRY_FLAG_EXCLUSIVE)
517 path->frp_flags |= FIB_ROUTE_PATH_EXCLUSIVE;
522 fib_table_entry_path_add (u32 fib_index,
523 const fib_prefix_t *prefix,
525 fib_entry_flag_t flags,
526 dpo_proto_t next_hop_proto,
527 const ip46_address_t *next_hop,
528 u32 next_hop_sw_if_index,
529 u32 next_hop_fib_index,
531 fib_mpls_label_t *next_hop_labels,
532 fib_route_path_flags_t path_flags)
534 fib_route_path_t path = {
535 .frp_proto = next_hop_proto,
536 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
537 .frp_sw_if_index = next_hop_sw_if_index,
538 .frp_fib_index = next_hop_fib_index,
539 .frp_weight = next_hop_weight,
540 .frp_flags = path_flags,
541 .frp_label_stack = next_hop_labels,
543 fib_node_index_t fib_entry_index;
544 fib_route_path_t *paths = NULL;
546 vec_add1(paths, path);
548 fib_entry_index = fib_table_entry_path_add2(fib_index, prefix,
549 source, flags, paths);
552 return (fib_entry_index);
556 fib_table_entry_path_add2 (u32 fib_index,
557 const fib_prefix_t *prefix,
559 fib_entry_flag_t flags,
560 fib_route_path_t *rpath)
562 fib_node_index_t fib_entry_index;
563 fib_table_t *fib_table;
566 fib_table = fib_table_get(fib_index, prefix->fp_proto);
567 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
569 for (ii = 0; ii < vec_len(rpath); ii++)
571 fib_table_route_path_fixup(prefix, flags, &rpath[ii]);
574 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
576 fib_entry_index = fib_entry_create(fib_index, prefix,
580 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
581 fib_table->ft_src_route_counts[source]++;
587 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
588 fib_entry_path_add(fib_entry_index, source, flags, rpath);;
590 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
592 fib_table->ft_src_route_counts[source]++;
596 return (fib_entry_index);
600 fib_table_entry_path_remove2 (u32 fib_index,
601 const fib_prefix_t *prefix,
603 fib_route_path_t *rpath)
607 * yes => remove source
608 * 2 - is it still sourced?
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 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
621 * removing an etry that does not exist. i'll allow it.
626 fib_entry_src_flag_t src_flag;
630 * if it's not sourced, then there's nowt to remove
632 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
639 * don't nobody go nowhere
641 fib_entry_lock(fib_entry_index);
643 for (ii = 0; ii < vec_len(rpath); ii++)
645 fib_table_route_path_fixup(
647 fib_entry_get_flags_for_source(fib_entry_index,
652 src_flag = fib_entry_path_remove(fib_entry_index, source, rpath);
654 if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
657 * last source gone. remove from the table
659 fib_table_entry_remove(fib_table, prefix, fib_entry_index);
662 * now the entry is no longer in the table, we can
663 * inform the entries that it covers to re-calculate their cover
665 fib_entry_cover_change_notify(fib_entry_index,
666 FIB_NODE_INDEX_INVALID);
670 * still has sources, leave it be.
672 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
674 fib_table->ft_src_route_counts[source]--;
677 fib_entry_unlock(fib_entry_index);
682 fib_table_entry_path_remove (u32 fib_index,
683 const fib_prefix_t *prefix,
685 dpo_proto_t next_hop_proto,
686 const ip46_address_t *next_hop,
687 u32 next_hop_sw_if_index,
688 u32 next_hop_fib_index,
690 fib_route_path_flags_t path_flags)
694 * yes => remove source
695 * 2 - is it still sourced?
698 fib_route_path_t path = {
699 .frp_proto = next_hop_proto,
700 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
701 .frp_sw_if_index = next_hop_sw_if_index,
702 .frp_fib_index = next_hop_fib_index,
703 .frp_weight = next_hop_weight,
704 .frp_flags = path_flags,
706 fib_route_path_t *paths = NULL;
708 vec_add1(paths, path);
710 fib_table_entry_path_remove2(fib_index, prefix, source, paths);
716 fib_route_path_cmp_for_sort (void * v1,
719 return (fib_route_path_cmp(v1, v2));
723 fib_table_entry_update (u32 fib_index,
724 const fib_prefix_t *prefix,
726 fib_entry_flag_t flags,
727 fib_route_path_t *paths)
729 fib_node_index_t fib_entry_index;
730 fib_table_t *fib_table;
733 fib_table = fib_table_get(fib_index, prefix->fp_proto);
734 fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
736 for (ii = 0; ii < vec_len(paths); ii++)
738 fib_table_route_path_fixup(prefix, flags, &paths[ii]);
741 * sort the paths provided by the control plane. this means
742 * the paths and the extension on the entry will be sorted.
744 vec_sort_with_function(paths, fib_route_path_cmp_for_sort);
746 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
748 fib_entry_index = fib_entry_create(fib_index, prefix,
752 fib_table_entry_insert(fib_table, prefix, fib_entry_index);
753 fib_table->ft_src_route_counts[source]++;
759 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
760 fib_entry_update(fib_entry_index, source, flags, paths);
762 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
764 fib_table->ft_src_route_counts[source]++;
768 return (fib_entry_index);
772 fib_table_entry_update_one_path (u32 fib_index,
773 const fib_prefix_t *prefix,
775 fib_entry_flag_t flags,
776 dpo_proto_t next_hop_proto,
777 const ip46_address_t *next_hop,
778 u32 next_hop_sw_if_index,
779 u32 next_hop_fib_index,
781 fib_mpls_label_t *next_hop_labels,
782 fib_route_path_flags_t path_flags)
784 fib_node_index_t fib_entry_index;
785 fib_route_path_t path = {
786 .frp_proto = next_hop_proto,
787 .frp_addr = (NULL == next_hop? zero_addr : *next_hop),
788 .frp_sw_if_index = next_hop_sw_if_index,
789 .frp_fib_index = next_hop_fib_index,
790 .frp_weight = next_hop_weight,
791 .frp_flags = path_flags,
792 .frp_label_stack = next_hop_labels,
794 fib_route_path_t *paths = NULL;
796 vec_add1(paths, path);
799 fib_table_entry_update(fib_index, prefix, source, flags, paths);
803 return (fib_entry_index);
807 fib_table_entry_delete_i (u32 fib_index,
808 fib_node_index_t fib_entry_index,
809 const fib_prefix_t *prefix,
812 fib_entry_src_flag_t src_flag;
813 fib_table_t *fib_table;
816 fib_table = fib_table_get(fib_index, prefix->fp_proto);
817 was_sourced = fib_entry_is_sourced(fib_entry_index, source);
820 * don't nobody go nowhere
822 fib_entry_lock(fib_entry_index);
824 src_flag = fib_entry_delete(fib_entry_index, source);
826 if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
829 * last source gone. remove from the table
831 fib_table_entry_remove(fib_table, prefix, fib_entry_index);
834 * now the entry is no longer in the table, we can
835 * inform the entries that it covers to re-calculate their cover
837 fib_entry_cover_change_notify(fib_entry_index,
838 FIB_NODE_INDEX_INVALID);
842 * still has sources, leave it be.
844 if (was_sourced != fib_entry_is_sourced(fib_entry_index, source))
846 fib_table->ft_src_route_counts[source]--;
849 fib_entry_unlock(fib_entry_index);
853 fib_table_entry_delete (u32 fib_index,
854 const fib_prefix_t *prefix,
857 fib_node_index_t fib_entry_index;
859 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
861 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
864 * removing an etry that does not exist.
865 * i'll allow it, but i won't like it.
868 clib_warning("%U not in FIB", format_fib_prefix, prefix);
872 fib_table_entry_delete_i(fib_index, fib_entry_index, prefix, source);
877 fib_table_entry_delete_index (fib_node_index_t fib_entry_index,
880 const fib_prefix_t *prefix;
882 prefix = fib_entry_get_prefix(fib_entry_index);
884 fib_table_entry_delete_i(fib_entry_get_fib_index(fib_entry_index),
885 fib_entry_index, prefix, source);
889 fib_table_entry_local_label_add (u32 fib_index,
890 const fib_prefix_t *prefix,
893 fib_node_index_t fib_entry_index;
895 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
897 if (FIB_NODE_INDEX_INVALID == fib_entry_index ||
898 !fib_entry_is_sourced(fib_entry_index, FIB_SOURCE_MPLS))
901 * only source the prefix once. this allows the label change
904 fib_entry_index = fib_table_entry_special_dpo_add(fib_index, prefix,
910 fib_entry_set_source_data(fib_entry_index, FIB_SOURCE_MPLS, &label);
912 return (fib_entry_index);
916 fib_table_entry_local_label_remove (u32 fib_index,
917 const fib_prefix_t *prefix,
920 fib_node_index_t fib_entry_index;
924 fib_entry_index = fib_table_lookup_exact_match(fib_index, prefix);
926 if (FIB_NODE_INDEX_INVALID == fib_entry_index)
929 data = fib_entry_get_source_data(fib_entry_index, FIB_SOURCE_MPLS);
934 pl = *(mpls_label_t*)data;
939 pl = MPLS_LABEL_INVALID;
941 fib_entry_set_source_data(fib_entry_index, FIB_SOURCE_MPLS, &pl);
942 fib_table_entry_special_remove(fib_index,
948 fib_table_get_index_for_sw_if_index (fib_protocol_t proto,
953 case FIB_PROTOCOL_IP4:
954 return (ip4_fib_table_get_index_for_sw_if_index(sw_if_index));
955 case FIB_PROTOCOL_IP6:
956 return (ip6_fib_table_get_index_for_sw_if_index(sw_if_index));
957 case FIB_PROTOCOL_MPLS:
958 return (mpls_fib_table_get_index_for_sw_if_index(sw_if_index));
964 fib_table_get_flow_hash_config (u32 fib_index,
965 fib_protocol_t proto)
969 fib = fib_table_get(fib_index, proto);
971 return (fib->ft_flow_hash_config);
975 fib_table_get_default_flow_hash_config (fib_protocol_t proto)
979 case FIB_PROTOCOL_IP4:
980 case FIB_PROTOCOL_IP6:
981 return (IP_FLOW_HASH_DEFAULT);
983 case FIB_PROTOCOL_MPLS:
984 return (MPLS_FLOW_HASH_DEFAULT);
988 return (IP_FLOW_HASH_DEFAULT);
992 * @brief Table set flow hash config context.
994 typedef struct fib_table_set_flow_hash_config_ctx_t_
997 * the flow hash config to set
999 flow_hash_config_t hash_config;
1000 } fib_table_set_flow_hash_config_ctx_t;
1002 static fib_table_walk_rc_t
1003 fib_table_set_flow_hash_config_cb (fib_node_index_t fib_entry_index,
1006 fib_table_set_flow_hash_config_ctx_t *ctx = arg;
1008 fib_entry_set_flow_hash_config(fib_entry_index, ctx->hash_config);
1010 return (FIB_TABLE_WALK_CONTINUE);
1014 fib_table_set_flow_hash_config (u32 fib_index,
1015 fib_protocol_t proto,
1016 flow_hash_config_t hash_config)
1018 fib_table_set_flow_hash_config_ctx_t ctx = {
1019 .hash_config = hash_config,
1023 fib = fib_table_get(fib_index, proto);
1024 fib->ft_flow_hash_config = hash_config;
1026 fib_table_walk(fib_index, proto,
1027 fib_table_set_flow_hash_config_cb,
1032 fib_table_get_table_id_for_sw_if_index (fib_protocol_t proto,
1035 fib_table_t *fib_table;
1037 fib_table = fib_table_get(fib_table_get_index_for_sw_if_index(
1038 proto, sw_if_index),
1041 return ((NULL != fib_table ? fib_table->ft_table_id : ~0));
1045 fib_table_get_table_id (u32 fib_index,
1046 fib_protocol_t proto)
1048 fib_table_t *fib_table;
1050 fib_table = fib_table_get(fib_index, proto);
1052 return ((NULL != fib_table ? fib_table->ft_table_id : ~0));
1056 fib_table_find (fib_protocol_t proto,
1061 case FIB_PROTOCOL_IP4:
1062 return (ip4_fib_index_from_table_id(table_id));
1063 case FIB_PROTOCOL_IP6:
1064 return (ip6_fib_index_from_table_id(table_id));
1065 case FIB_PROTOCOL_MPLS:
1066 return (mpls_fib_index_from_table_id(table_id));
1072 fib_table_find_or_create_and_lock_i (fib_protocol_t proto,
1077 fib_table_t *fib_table;
1078 fib_node_index_t fi;
1082 case FIB_PROTOCOL_IP4:
1083 fi = ip4_fib_table_find_or_create_and_lock(table_id, src);
1085 case FIB_PROTOCOL_IP6:
1086 fi = ip6_fib_table_find_or_create_and_lock(table_id, src);
1088 case FIB_PROTOCOL_MPLS:
1089 fi = mpls_fib_table_find_or_create_and_lock(table_id, src);
1095 fib_table = fib_table_get(fi, proto);
1097 if (NULL == fib_table->ft_desc)
1099 if (name && name[0])
1101 fib_table->ft_desc = format(NULL, "%s", name);
1105 fib_table->ft_desc = format(NULL, "%U-VRF:%d",
1106 format_fib_protocol, proto,
1115 fib_table_find_or_create_and_lock (fib_protocol_t proto,
1119 return (fib_table_find_or_create_and_lock_i(proto, table_id,
1124 fib_table_find_or_create_and_lock_w_name (fib_protocol_t proto,
1129 return (fib_table_find_or_create_and_lock_i(proto, table_id,
1134 fib_table_create_and_lock (fib_protocol_t proto,
1136 const char *const fmt,
1139 fib_table_t *fib_table;
1140 fib_node_index_t fi;
1147 case FIB_PROTOCOL_IP4:
1148 fi = ip4_fib_table_create_and_lock(src);
1150 case FIB_PROTOCOL_IP6:
1151 fi = ip6_fib_table_create_and_lock(src, FIB_TABLE_FLAG_NONE, NULL);
1153 case FIB_PROTOCOL_MPLS:
1154 fi = mpls_fib_table_create_and_lock(src);
1160 fib_table = fib_table_get(fi, proto);
1162 fib_table->ft_desc = va_format(fib_table->ft_desc, fmt, &ap);
1169 fib_table_destroy (fib_table_t *fib_table)
1171 vec_free(fib_table->ft_desc);
1173 switch (fib_table->ft_proto)
1175 case FIB_PROTOCOL_IP4:
1176 ip4_fib_table_destroy(fib_table->ft_index);
1178 case FIB_PROTOCOL_IP6:
1179 ip6_fib_table_destroy(fib_table->ft_index);
1181 case FIB_PROTOCOL_MPLS:
1182 mpls_fib_table_destroy(fib_table->ft_index);
1188 fib_table_walk (u32 fib_index,
1189 fib_protocol_t proto,
1190 fib_table_walk_fn_t fn,
1195 case FIB_PROTOCOL_IP4:
1196 ip4_fib_table_walk(ip4_fib_get(fib_index), fn, ctx);
1198 case FIB_PROTOCOL_IP6:
1199 ip6_fib_table_walk(fib_index, fn, ctx);
1201 case FIB_PROTOCOL_MPLS:
1202 mpls_fib_table_walk(mpls_fib_get(fib_index), fn, ctx);
1208 fib_table_sub_tree_walk (u32 fib_index,
1209 fib_protocol_t proto,
1210 const fib_prefix_t *root,
1211 fib_table_walk_fn_t fn,
1216 case FIB_PROTOCOL_IP4:
1217 ip4_fib_table_sub_tree_walk(ip4_fib_get(fib_index), root, fn, ctx);
1219 case FIB_PROTOCOL_IP6:
1220 ip6_fib_table_sub_tree_walk(fib_index, root, fn, ctx);
1222 case FIB_PROTOCOL_MPLS:
1228 fib_table_unlock (u32 fib_index,
1229 fib_protocol_t proto,
1230 fib_source_t source)
1232 fib_table_t *fib_table;
1234 fib_table = fib_table_get(fib_index, proto);
1235 fib_table->ft_locks[source]--;
1236 fib_table->ft_locks[FIB_TABLE_TOTAL_LOCKS]--;
1238 if (0 == fib_table->ft_locks[source])
1241 * The source no longer needs the table. flush any routes
1242 * from it just in case
1244 fib_table_flush(fib_index, proto, source);
1247 if (0 == fib_table->ft_locks[FIB_TABLE_TOTAL_LOCKS])
1250 * no more locak from any source - kill it
1252 fib_table_destroy(fib_table);
1257 fib_table_lock (u32 fib_index,
1258 fib_protocol_t proto,
1259 fib_source_t source)
1261 fib_table_t *fib_table;
1263 fib_table = fib_table_get(fib_index, proto);
1264 fib_table->ft_locks[source]++;
1265 fib_table->ft_locks[FIB_TABLE_TOTAL_LOCKS]++;
1269 fib_table_get_num_entries (u32 fib_index,
1270 fib_protocol_t proto,
1271 fib_source_t source)
1273 fib_table_t *fib_table;
1275 fib_table = fib_table_get(fib_index, proto);
1277 return (fib_table->ft_src_route_counts[source]);
1281 format_fib_table_name (u8* s, va_list* ap)
1283 fib_node_index_t fib_index = va_arg(*ap, fib_node_index_t);
1284 fib_protocol_t proto = va_arg(*ap, int); // int promotion
1285 fib_table_t *fib_table;
1287 fib_table = fib_table_get(fib_index, proto);
1289 s = format(s, "%v", fib_table->ft_desc);
1295 * @brief Table flush context. Store the indicies of matching FIB entries
1296 * that need to be removed.
1298 typedef struct fib_table_flush_ctx_t_
1301 * The list of entries to flush
1303 fib_node_index_t *ftf_entries;
1306 * The source we are flushing
1308 fib_source_t ftf_source;
1309 } fib_table_flush_ctx_t;
1311 static fib_table_walk_rc_t
1312 fib_table_flush_cb (fib_node_index_t fib_entry_index,
1315 fib_table_flush_ctx_t *ctx = arg;
1317 if (fib_entry_is_sourced(fib_entry_index, ctx->ftf_source))
1319 vec_add1(ctx->ftf_entries, fib_entry_index);
1321 return (FIB_TABLE_WALK_CONTINUE);
1326 fib_table_flush (u32 fib_index,
1327 fib_protocol_t proto,
1328 fib_source_t source)
1330 fib_node_index_t *fib_entry_index;
1331 fib_table_flush_ctx_t ctx = {
1332 .ftf_entries = NULL,
1333 .ftf_source = source,
1336 fib_table_walk(fib_index, proto,
1340 vec_foreach(fib_entry_index, ctx.ftf_entries)
1342 fib_table_entry_delete_index(*fib_entry_index, source);
1345 vec_free(ctx.ftf_entries);
1349 format_fib_table_memory (u8 *s, va_list *args)
1351 s = format(s, "%U", format_ip4_fib_table_memory);
1352 s = format(s, "%U", format_ip6_fib_table_memory);
1353 s = format(s, "%U", format_mpls_fib_table_memory);