FD.io VPP  v20.09-64-g4f7b92f0a
Vector Packet Processing
fib_entry_src.c
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1 /*
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:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
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.
14  */
15 
16 #include <vnet/adj/adj.h>
17 #include <vnet/dpo/load_balance.h>
19 #include <vnet/dpo/drop_dpo.h>
20 #include <vnet/dpo/replicate_dpo.h>
21 
22 #include <vnet/fib/fib_entry_src.h>
23 #include <vnet/fib/fib_table.h>
24 #include <vnet/fib/fib_path_ext.h>
25 #include <vnet/fib/fib_urpf_list.h>
27 
28 /*
29  * per-source type vft
30  */
31 static fib_entry_src_vft_t fib_entry_src_bh_vft[FIB_SOURCE_BH_MAX];
32 
33 /**
34  * Get the VFT for a given source. This is a combination of the source
35  * enum and the interposer flags
36  */
39 {
41 
43 
45  {
46  return (&fib_entry_src_bh_vft[FIB_SOURCE_BH_INTERPOSE]);
47  }
48 
49  return (&fib_entry_src_bh_vft[bh]);
50 }
51 
52 static void
54  const fib_entry_t *fib_entry,
55  fib_entry_src_t *copy_src)
56 {
57  clib_memcpy(&copy_src->u, &orig_src->u, sizeof(copy_src->u));
58 }
59 
60 void
62  const fib_entry_src_vft_t *vft)
63 {
64  fib_entry_src_bh_vft[bh] = *vft;
65 
66  if (NULL == fib_entry_src_bh_vft[bh].fesv_copy)
67  {
68  fib_entry_src_bh_vft[bh].fesv_copy = fib_entry_src_copy_default;
69  }
70 }
71 
72 static int
74  void * v2)
75 {
76  fib_entry_src_t *esrc1 = v1, *esrc2 = v2;
77 
78  return (fib_source_get_prio(esrc1->fes_src) -
79  fib_source_get_prio(esrc2->fes_src));
80 }
81 
82 static void
84  fib_source_t source,
86 {
87  fib_entry_src_t esrc = {
89  .fes_flags = FIB_ENTRY_SRC_FLAG_NONE,
90  .fes_src = source,
91  .fes_entry_flags = flags,
92  };
93 
94  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, &esrc, fesv_init, (&esrc));
95 
96  vec_add1(fib_entry->fe_srcs, esrc);
99 }
100 
101 static fib_entry_src_t *
103  fib_source_t source,
104  u32 *index)
105 
106 {
107  fib_entry_src_t *esrc;
108  int ii;
109 
110  ii = 0;
111  vec_foreach(esrc, fib_entry->fe_srcs)
112  {
113  if (esrc->fes_src == source)
114  {
115  if (NULL != index)
116  {
117  *index = ii;
118  }
119  return (esrc);
120  }
121  else
122  {
123  ii++;
124  }
125  }
126 
127  return (NULL);
128 }
129 
130 static fib_entry_src_t *
131 fib_entry_src_find (const fib_entry_t *fib_entry,
132  fib_source_t source)
133 
134 {
135  return (fib_entry_src_find_i(fib_entry, source, NULL));
136 }
137 
138 int
140  fib_source_t source)
141 {
142  fib_entry_t *fib_entry;
143 
144  fib_entry = fib_entry_get(fib_entry_index);
145 
146  return (NULL != fib_entry_src_find(fib_entry, source));
147 }
148 
149 int
151  fib_source_t source)
152 {
153  fib_entry_t *fib_entry;
154  fib_entry_src_t *esrc;
155 
156  fib_entry = fib_entry_get(fib_entry_index);
157 
158  esrc = fib_entry_src_find(fib_entry, source);
159 
160  if (NULL == esrc)
161  {
162  return (0);
163  }
164  else
165  {
166  return (!!(esrc->fes_flags & FIB_ENTRY_SRC_FLAG_STALE));
167  }
168 }
169 
170 void
172  fib_source_t source)
173 {
174  fib_entry_t *fib_entry;
175  fib_entry_src_t *esrc;
176 
177  fib_entry = fib_entry_get(fib_entry_index);
178 
179  esrc = fib_entry_src_find(fib_entry, source);
180 
181  if (NULL != esrc)
182  {
184  }
185 }
186 
187 static fib_entry_src_t *
189  fib_source_t source,
191 {
192  fib_entry_src_t *esrc;
193 
194  esrc = fib_entry_src_find(fib_entry, source);
195 
196  if (NULL == esrc)
197  {
198  fib_entry_src_action_init(fib_entry, source, flags);
199  }
200 
201  return (fib_entry_src_find(fib_entry, source));
202 }
203 
204 static void
206  fib_source_t source)
207 
208 {
209  fib_entry_src_t *esrc;
210  u32 index = ~0;
211 
212  esrc = fib_entry_src_find_i(fib_entry, source, &index);
213 
214  ASSERT(NULL != esrc);
215 
216  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_deinit, (esrc));
217 
219  vec_del1(fib_entry->fe_srcs, index);
220  vec_sort_with_function(fib_entry->fe_srcs,
222 }
223 
226  fib_entry_src_t *esrc)
227 {
228  FIB_ENTRY_SRC_VFT_INVOKE_AND_RETURN(esrc, fesv_cover_change,
229  (esrc, fib_entry));
230 
232  .install = !0,
233  .bw_reason = FIB_NODE_BW_REASON_FLAG_NONE,
234  };
235  return (res);
236 }
237 
240  fib_entry_src_t *esrc)
241 {
242  FIB_ENTRY_SRC_VFT_INVOKE_AND_RETURN(esrc, fesv_cover_update,
243  (esrc, fib_entry));
244 
246  .install = !0,
247  .bw_reason = FIB_NODE_BW_REASON_FLAG_NONE,
248  };
249  return (res);
250 }
251 
253 {
261 
262 /**
263  * @brief Determine whether this FIB entry should use a load-balance MAP
264  * to support PIC edge fast convergence
265  */
268 {
269  /**
270  * We'll use a LB map if the path-list has multiple recursive paths.
271  * recursive paths implies BGP, and hence scale.
272  */
273  if (ctx->n_recursive_constrained > 1 &&
275  {
277  }
278  return (LOAD_BALANCE_FLAG_NONE);
279 }
280 
281 static int
283 {
284  return ((MPLS_LABEL_IS_REAL(label) ||
285  MPLS_LABEL_POP == label ||
289 }
290 
291 /**
292  * @brief Turn the chain type requested by the client into the one they
293  * really wanted
294  */
298 {
299  /*
300  * The EOS chain is a tricky since one cannot know the adjacency
301  * to link to without knowing what the packets payload protocol
302  * will be once the label is popped.
303  */
305 
306  if (FIB_FORW_CHAIN_TYPE_MPLS_EOS != fct)
307  {
308  return (fct);
309  }
310 
311  dfct = fib_entry_get_default_chain_type(entry);
312 
313  if (FIB_FORW_CHAIN_TYPE_MPLS_EOS == dfct)
314  {
315  /*
316  * If the entry being asked is a eos-MPLS label entry,
317  * then use the payload-protocol field, that we stashed there
318  * for just this purpose
319  */
321  entry->fe_prefix.fp_payload_proto));
322  }
323  /*
324  * else give them what this entry would be by default. i.e. if it's a v6
325  * entry, then the label its local labelled should be carrying v6 traffic.
326  * If it's a non-EOS label entry, then there are more labels and we want
327  * a non-eos chain.
328  */
329  return (dfct);
330 }
331 
332 static dpo_proto_t
334 {
335  switch (pfx->fp_proto)
336  {
337  case FIB_PROTOCOL_IP4:
338  return (DPO_PROTO_IP4);
339  case FIB_PROTOCOL_IP6:
340  return (DPO_PROTO_IP6);
341  case FIB_PROTOCOL_MPLS:
342  return (pfx->fp_payload_proto);
343  }
344 
345  ASSERT(0);
346  return (DPO_PROTO_IP4);
347 }
348 
349 static void
352 {
354 
355  /*
356  * no extension => no out-going label for this path. that's OK
357  * in the case of an IP or EOS chain, but not for non-EOS
358  */
359  switch (ctx->fct)
360  {
366  /*
367  * EOS traffic with no label to stack, we need the IP Adj
368  */
369  vec_add2(ctx->next_hops, nh, 1);
370 
371  nh->path_index = path_index;
372  nh->path_weight = fib_path_get_weight(path_index);
373  fib_path_contribute_forwarding(path_index, ctx->fct, &nh->path_dpo);
374 
375  break;
377  if (fib_path_is_exclusive(path_index) ||
378  fib_path_is_deag(path_index))
379  {
380  vec_add2(ctx->next_hops, nh, 1);
381 
382  nh->path_index = path_index;
383  nh->path_weight = fib_path_get_weight(path_index);
386  &nh->path_dpo);
387  }
388  break;
390  {
391  /*
392  * no label. we need a chain based on the payload. fixup.
393  */
394  vec_add2(ctx->next_hops, nh, 1);
395 
396  nh->path_index = path_index;
397  nh->path_weight = fib_path_get_weight(path_index);
400  ctx->fct),
401  &nh->path_dpo);
402  fib_path_stack_mpls_disp(path_index,
405  &nh->path_dpo);
406 
407  break;
408  }
411  ASSERT(0);
412  break;
413  }
414 }
415 
418  fib_node_index_t path_index,
419  void *arg)
420 {
422  fib_path_ext_t *path_ext;
423  u32 n_nhs;
424 
425  ctx = arg;
426  n_nhs = vec_len(ctx->next_hops);
427 
428  /*
429  * if the path is not resolved, don't include it.
430  */
431  if (!fib_path_is_resolved(path_index))
432  {
434  }
435 
436  if (fib_path_is_recursive_constrained(path_index))
437  {
438  ctx->n_recursive_constrained += 1;
439  }
440  if (0xffff == ctx->preference)
441  {
442  /*
443  * not set a preference yet, so the first path we encounter
444  * sets the preference we are collecting.
445  */
446  ctx->preference = fib_path_get_preference(path_index);
447  }
448  else if (ctx->preference != fib_path_get_preference(path_index))
449  {
450  /*
451  * this path does not belong to the same preference as the
452  * previous paths encountered. we are done now.
453  */
454  return (FIB_PATH_LIST_WALK_STOP);
455  }
456 
457  /*
458  * get the matching path-extension for the path being visited.
459  */
461  path_index);
462 
463  if (NULL != path_ext)
464  {
465  switch (path_ext->fpe_type)
466  {
467  case FIB_PATH_EXT_MPLS:
468  if (fib_entry_src_valid_out_label(path_ext->fpe_label_stack[0].fml_value))
469  {
470  /*
471  * found a matching extension. stack it to obtain the forwarding
472  * info for this path.
473  */
474  ctx->next_hops =
475  fib_path_ext_stack(path_ext,
476  ctx->fct,
478  ctx->fct),
479  ctx->next_hops);
480  }
481  else
482  {
483  fib_entry_src_get_path_forwarding(path_index, ctx);
484  }
485  break;
486  case FIB_PATH_EXT_ADJ:
488  {
489  fib_entry_src_get_path_forwarding(path_index, ctx);
490  }
491  /*
492  * else
493  * the path does not refine the cover, meaning that
494  * the adjacency does/does not match the sub-net on the link.
495  * So this path does not contribute forwarding.
496  */
497  break;
498  }
499  }
500  else
501  {
502  fib_entry_src_get_path_forwarding(path_index, ctx);
503  }
504 
505  /*
506  * a this point 'ctx' has the DPO the path contributed, plus
507  * any labels from path extensions.
508  * check if there are any interpose sources that want to contribute
509  */
510  if (n_nhs < vec_len(ctx->next_hops))
511  {
512  /*
513  * the path contributed a new choice.
514  */
515  const fib_entry_src_vft_t *vft;
516 
517  vft = fib_entry_src_get_vft(ctx->esrc);
518 
519  if (NULL != vft->fesv_contribute_interpose)
520  {
521  const dpo_id_t *interposer;
522 
523  interposer = vft->fesv_contribute_interpose(ctx->esrc,
524  ctx->fib_entry);
525 
526  if (NULL != interposer)
527  {
528  dpo_id_t clone = DPO_INVALID;
529 
530  dpo_mk_interpose(interposer,
531  &ctx->next_hops[n_nhs].path_dpo,
532  &clone);
533 
534  dpo_copy(&ctx->next_hops[n_nhs].path_dpo, &clone);
535  dpo_reset(&clone);
536  }
537  }
538  }
539 
541 }
542 
543 void
545  const fib_entry_src_t *esrc,
547  dpo_id_t *dpo_lb)
548 {
549  dpo_proto_t lb_proto;
550 
551  /*
552  * If the entry has path extensions then we construct a load-balance
553  * by stacking the extensions on the forwarding chains of the paths.
554  * Otherwise we use the load-balance of the path-list
555  */
557  .esrc = esrc,
558  .fib_entry = fib_entry,
559  .next_hops = NULL,
560  .n_recursive_constrained = 0,
561  .fct = fct,
562  .preference = 0xffff,
563  };
564 
565  /*
566  * As an optimisation we allocate the vector of next-hops to be sized
567  * equal to the maximum number of paths we will need, which is also the
568  * most likely number we will need, since in most cases the paths are 'up'.
569  */
572 
573  lb_proto = fib_forw_chain_type_to_dpo_proto(fct);
574 
577  &ctx);
578 
580  {
581  /*
582  * the client provided the DPO that the entry should link to.
583  * all entries must link to a LB, so if it is an LB already
584  * then we can use it.
585  */
586  if ((1 == vec_len(ctx.next_hops)) &&
588  {
589  dpo_copy(dpo_lb, &ctx.next_hops[0].path_dpo);
590  dpo_reset(&ctx.next_hops[0].path_dpo);
591  return;
592  }
593  }
594 
595  if (!dpo_id_is_valid(dpo_lb))
596  {
597  /*
598  * first time create
599  */
601  {
602  dpo_set(dpo_lb,
604  lb_proto,
605  MPLS_IS_REPLICATE | replicate_create(0, lb_proto));
606  }
607  else
608  {
609  fib_protocol_t flow_hash_proto;
610  flow_hash_config_t fhc;
611 
612  /*
613  * if the protocol for the LB we are building does not match that
614  * of the fib_entry (i.e. we are build the [n]EOS LB for an IPv[46]
615  * then the fib_index is not an index that relates to the table
616  * type we need. So get the default flow-hash config instead.
617  */
618  flow_hash_proto = dpo_proto_to_fib(lb_proto);
619  if (fib_entry->fe_prefix.fp_proto != flow_hash_proto)
620  {
621  fhc = fib_table_get_default_flow_hash_config(flow_hash_proto);
622  }
623  else
624  {
626  flow_hash_proto);
627  }
628 
629  dpo_set(dpo_lb,
631  lb_proto,
632  load_balance_create(0, lb_proto, fhc));
633  }
634  }
635 
637  {
638  /*
639  * MPLS multicast
640  */
642  }
643  else
644  {
646  ctx.next_hops,
648  vec_free(ctx.next_hops);
649 
650  /*
651  * if this entry is sourced by the uRPF-exempt source then we
652  * append the always present local0 interface (index 0) to the
653  * uRPF list so it is not empty. that way packets pass the loose check.
654  */
656 
660  (0 == fib_urpf_check_size(ui)))
661  {
662  /*
663  * The uRPF list we get from the path-list is shared by all
664  * other users of the list, but the uRPF exemption applies
665  * only to this prefix. So we need our own list.
666  */
668  fib_urpf_list_append(ui, 0);
669  fib_urpf_list_bake(ui);
670  load_balance_set_urpf(dpo_lb->dpoi_index, ui);
672  }
673  else
674  {
675  load_balance_set_urpf(dpo_lb->dpoi_index, ui);
676  }
678  fib_entry_get_flags_i(fib_entry));
679  }
680 }
681 
682 void
684  fib_source_t source)
685 {
686  /*
687  * Install the forwarding chain for the given source into the forwarding
688  * tables
689  */
692  int insert;
693 
694  fct = fib_entry_get_default_chain_type(fib_entry);
695  esrc = fib_entry_src_find(fib_entry, source);
696 
697  /*
698  * Every entry has its own load-balance object. All changes to the entry's
699  * forwarding result in an inplace modify of the load-balance. This means
700  * the load-balance object only needs to be added to the forwarding
701  * DB once, when it is created.
702  */
703  insert = !dpo_id_is_valid(&fib_entry->fe_lb);
704 
705  fib_entry_src_mk_lb(fib_entry, esrc, fct, &fib_entry->fe_lb);
706 
707  ASSERT(dpo_id_is_valid(&fib_entry->fe_lb));
708  FIB_ENTRY_DBG(fib_entry, "install: %d", fib_entry->fe_lb);
709 
710  /*
711  * insert the adj into the data-plane forwarding trie
712  */
713  if (insert)
714  {
716  &fib_entry->fe_prefix,
717  &fib_entry->fe_lb);
718  }
719 
720  /*
721  * if any of the other chain types are already created they will need
722  * updating too
723  */
726 
727  FOR_EACH_DELEGATE_CHAIN(fib_entry, fdt, fed,
728  {
729  fib_entry_src_mk_lb(fib_entry, esrc,
731  &fed->fd_dpo);
732  });
733 }
734 
735 void
737 {
738  /*
739  * uninstall the forwarding chain from the forwarding tables
740  */
741  FIB_ENTRY_DBG(fib_entry, "uninstall");
742 
743  if (dpo_id_is_valid(&fib_entry->fe_lb))
744  {
746  fib_entry->fe_fib_index,
747  &fib_entry->fe_prefix,
748  &fib_entry->fe_lb);
749 
750  dpo_reset(&fib_entry->fe_lb);
751  }
752 }
753 
754 static void
756 {
757  fib_node_index_t *entries = NULL;
758 
759  fib_path_list_recursive_loop_detect(path_list_index, &entries);
760 
761  vec_free(entries);
762 }
763 
764 /*
765  * fib_entry_src_action_copy
766  *
767  * copy a source data from another entry to this one
768  */
769 static fib_entry_t *
771  const fib_entry_src_t *orig_src)
772 {
774 
775  esrc = fib_entry_src_find_or_create(fib_entry,
776  orig_src->fes_src,
777  orig_src->fes_entry_flags);
778 
779  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_copy,
780  (orig_src, fib_entry, esrc));
781 
783 
784  /*
785  * copy over all the data ...
786  */
787  esrc->fes_flags = orig_src->fes_flags;
788  esrc->fes_pl = orig_src->fes_pl;
789 
790  /*
791  * ... then update
792  */
793  esrc->fes_ref_count = 1;
798 
799  /*
800  * the source owns a lock on the entry
801  */
802  fib_path_list_lock(esrc->fes_pl);
804 
805  return (fib_entry);
806 }
807 
808 /*
809  * fib_entry_src_action_update
810  *
811  * copy a source data from another entry to this one
812  */
813 static fib_entry_src_t *
815  const fib_entry_src_t *orig_src)
816 {
818 
819  esrc = fib_entry_src_find_or_create(fib_entry,
820  orig_src->fes_src,
821  orig_src->fes_entry_flags);
822 
823  /*
824  * the source owns a lock on the entry
825  */
827  esrc->fes_pl = orig_src->fes_pl;
828  fib_path_list_lock(esrc->fes_pl);
829 
830  return (esrc);
831 }
832 
833 static fib_table_walk_rc_t
835  const fib_entry_src_t *cover_src)
836 {
838 
839  esrc = fib_entry_src_find(fib_entry, cover_src->fes_src);
840 
841  if (cover_src == esrc)
842  {
843  return (FIB_TABLE_WALK_CONTINUE);
844  }
845 
846  if (NULL != esrc)
847  {
848  /*
849  * the covered entry already has this source.
850  */
852  {
853  /*
854  * the covered source is itself a COVERED_INHERIT, i.e.
855  * it also pushes this source down the sub-tree.
856  * We consider this more specific covered to be the owner
857  * of the sub-tree from this point down.
858  */
860  }
862  {
863  /*
864  * The covered's source data has been inherited, presumably
865  * from this cover, i.e. this is a modify.
866  */
867  esrc = fib_entry_src_action_update_from_cover(fib_entry, cover_src);
868  fib_entry_source_change(fib_entry, esrc->fes_src, esrc->fes_src);
869  }
870  else
871  {
872  /*
873  * The covered's source was not inherited and it is also
874  * not inheriting. Nevertheless, it still owns the sub-tree from
875  * this point down.
876  */
878  }
879  }
880  else
881  {
882  /*
883  * The covered does not have this source - add it.
884  */
885  fib_source_t best_source;
886 
887  best_source = fib_entry_get_best_source(
888  fib_entry_get_index(fib_entry));
889 
890  fib_entry_src_action_copy(fib_entry, cover_src);
891  fib_entry_source_change(fib_entry, best_source, cover_src->fes_src);
892 
893  }
894  return (FIB_TABLE_WALK_CONTINUE);
895 }
896 
897 static fib_table_walk_rc_t
899  void *ctx)
900 {
902 }
903 
904 static fib_table_walk_rc_t
906  void *ctx)
907 {
908  fib_entry_src_t *cover_src, *esrc;
910 
911  fib_entry = fib_entry_get(fei);
912 
913  cover_src = ctx;
914  esrc = fib_entry_src_find(fib_entry, cover_src->fes_src);
915 
916  if (cover_src == esrc)
917  {
918  return (FIB_TABLE_WALK_CONTINUE);
919  }
920 
921  if (NULL != esrc)
922  {
923  /*
924  * the covered entry already has this source.
925  */
927  {
928  /*
929  * the covered source is itself a COVERED_INHERIT, i.e.
930  * it also pushes this source down the sub-tree.
931  * We consider this more specific covered to be the owner
932  * of the sub-tree from this point down.
933  */
935  }
937  {
938  /*
939  * The covered's source data has been inherited, presumably
940  * from this cover
941  */
942  fib_entry_src_flag_t remaining;
943 
944  remaining = fib_entry_special_remove(fei, cover_src->fes_src);
945 
946  ASSERT(FIB_ENTRY_SRC_FLAG_ADDED == remaining);
947  }
948  else
949  {
950  /*
951  * The covered's source was not inherited and it is also
952  * not inheriting. Nevertheless, it still owns the sub-tree from
953  * this point down.
954  */
956  }
957  }
958  else
959  {
960  /*
961  * The covered does not have this source - that's an error,
962  * since it should have inherited, but there is nothing we can do
963  * about it now.
964  */
965  }
966  return (FIB_TABLE_WALK_CONTINUE);
967 }
968 
969 void
971  fib_entry_t *covered)
972 {
973  CLIB_UNUSED(fib_source_t source);
974  const fib_entry_src_t *src;
975 
976  FOR_EACH_SRC_ADDED(cover, src, source,
977  ({
980  {
981  fib_entry_src_covered_inherit_add_i(covered, src);
982  }
983  }))
984 }
985 
986 static void
988  fib_source_t source)
989 
990 {
992 
993  esrc = fib_entry_src_find(fib_entry, source);
994 
996 
999  {
1001  fib_entry->fe_prefix.fp_proto,
1002  &fib_entry->fe_prefix,
1004  esrc);
1005  }
1006 }
1007 
1008 static void
1011 
1012 {
1014 
1016  {
1018  fib_entry->fe_prefix.fp_proto,
1019  &fib_entry->fe_prefix,
1021  esrc);
1022  }
1023 }
1024 
1025 void
1027  fib_source_t source)
1028 
1029 {
1030  int houston_we_are_go_for_install;
1031  const fib_entry_src_vft_t *vft;
1033 
1034  esrc = fib_entry_src_find(fib_entry, source);
1035 
1038 
1041  vft = fib_entry_src_get_vft(esrc);
1042 
1043  if (NULL != vft->fesv_activate)
1044  {
1045  houston_we_are_go_for_install = vft->fesv_activate(esrc, fib_entry);
1046  }
1047  else
1048  {
1049  /*
1050  * the source is not providing an activate function, we'll assume
1051  * therefore it has no objection to installing the entry
1052  */
1053  houston_we_are_go_for_install = !0;
1054  }
1055 
1056  /*
1057  * link to the path-list provided by the source, and go check
1058  * if that forms any loops in the graph.
1059  */
1060  fib_entry->fe_parent = esrc->fes_pl;
1061  fib_entry->fe_sibling =
1064  fib_entry_get_index(fib_entry));
1065 
1067 
1068  FIB_ENTRY_DBG(fib_entry, "activate: %d",
1069  fib_entry->fe_parent);
1070 
1071  /*
1072  * If this source should push its state to covered prefixs, do that now.
1073  */
1074  fib_entry_src_covered_inherit_add(fib_entry, source);
1075 
1076  if (0 != houston_we_are_go_for_install)
1077  {
1078  fib_entry_src_action_install(fib_entry, source);
1079  }
1080  else
1081  {
1082  fib_entry_src_action_uninstall(fib_entry);
1083  }
1084 }
1085 
1086 void
1088  fib_source_t source)
1089 
1090 {
1091  fib_node_index_t path_list_index;
1093 
1094  esrc = fib_entry_src_find(fib_entry, source);
1095 
1097 
1098  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_deactivate,
1099  (esrc, fib_entry));
1100 
1103 
1104  FIB_ENTRY_DBG(fib_entry, "deactivate: %d", fib_entry->fe_parent);
1105 
1106  /*
1107  * If this source should pull its state from covered prefixs, do that now.
1108  * If this source also has the INHERITED flag set then it has a cover
1109  * that wants to push down forwarding. We only want the covereds to see
1110  * one update.
1111  */
1112  fib_entry_src_covered_inherit_remove(fib_entry, esrc);
1113 
1114  /*
1115  * un-link from an old path-list. Check for any loops this will clear
1116  */
1117  path_list_index = fib_entry->fe_parent;
1118  fib_entry->fe_parent = FIB_NODE_INDEX_INVALID;
1119 
1120  fib_entry_recursive_loop_detect_i(path_list_index);
1121 
1122  /*
1123  * this will unlock the path-list, so it may be invalid thereafter.
1124  */
1125  fib_path_list_child_remove(path_list_index, fib_entry->fe_sibling);
1126  fib_entry->fe_sibling = FIB_NODE_INDEX_INVALID;
1127 }
1128 
1129 static void
1131  fib_source_t source)
1132 {
1134 
1135  vec_foreach(esrc, fib_entry->fe_srcs)
1136  {
1137  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_fwd_update,
1138  (esrc, fib_entry, source));
1139  }
1140 }
1141 
1142 void
1144  fib_source_t source)
1145 {
1146  fib_node_index_t path_list_index;
1147  const fib_entry_src_vft_t *vft;
1149  int remain_installed;
1150 
1151  esrc = fib_entry_src_find(fib_entry, source);
1152 
1154 
1155  FIB_ENTRY_DBG(fib_entry, "reactivate: %d to %d",
1156  fib_entry->fe_parent,
1157  esrc->fes_pl);
1158 
1159  /*
1160  * call the source to reactive and get the go/no-go to remain installed
1161  */
1162  vft = fib_entry_src_get_vft(esrc);
1163 
1164  if (NULL != vft->fesv_reactivate)
1165  {
1166  remain_installed = vft->fesv_reactivate(esrc, fib_entry);
1167  }
1168  else
1169  {
1170  remain_installed = 1;
1171  }
1172 
1173  if (fib_entry->fe_parent != esrc->fes_pl)
1174  {
1175  /*
1176  * un-link from an old path-list. Check for any loops this will clear
1177  */
1178  path_list_index = fib_entry->fe_parent;
1179  fib_entry->fe_parent = FIB_NODE_INDEX_INVALID;
1180 
1181  /*
1182  * temporary lock so it doesn't get deleted when this entry is no
1183  * longer a child.
1184  */
1185  fib_path_list_lock(path_list_index);
1186 
1187  /*
1188  * this entry is no longer a child. after unlinking check if any loops
1189  * were broken
1190  */
1191  fib_path_list_child_remove(path_list_index,
1192  fib_entry->fe_sibling);
1193 
1194  fib_entry_recursive_loop_detect_i(path_list_index);
1195 
1196  /*
1197  * link to the path-list provided by the source, and go check
1198  * if that forms any loops in the graph.
1199  */
1200  fib_entry->fe_parent = esrc->fes_pl;
1201  fib_entry->fe_sibling =
1204  fib_entry_get_index(fib_entry));
1205 
1207  fib_path_list_unlock(path_list_index);
1208 
1209  /*
1210  * If this source should push its state to covered prefixs, do that now.
1211  */
1212  fib_entry_src_covered_inherit_add(fib_entry, source);
1213  }
1214 
1215  if (!remain_installed)
1216  {
1217  fib_entry_src_action_uninstall(fib_entry);
1218  }
1219  else
1220  {
1221  fib_entry_src_action_install(fib_entry, source);
1222  }
1223  fib_entry_src_action_fwd_update(fib_entry, source);
1224 }
1225 
1226 fib_entry_t *
1228  fib_source_t source)
1229 {
1231 
1232  esrc = fib_entry_src_find(fib_entry, source);
1233 
1234  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_installed,
1235  (esrc, fib_entry));
1236 
1237  fib_entry_src_action_fwd_update(fib_entry, source);
1238 
1239  return (fib_entry);
1240 }
1241 
1242 /*
1243  * fib_entry_src_action_add
1244  *
1245  * Adding a source can result in a new fib_entry being created, which
1246  * can inturn mean the pool is realloc'd and thus the entry passed as
1247  * an argument it also realloc'd
1248  * @return the original entry
1249  */
1250 fib_entry_t *
1252  fib_source_t source,
1254  const dpo_id_t *dpo)
1255 {
1257 
1258  esrc = fib_entry_src_find_or_create(fib_entry, source, flags);
1259 
1260  ASSERT(esrc->fes_ref_count < 255);
1261  esrc->fes_ref_count++;
1262 
1263  if (flags != esrc->fes_entry_flags)
1264  {
1265  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_flags_change,
1266  (esrc, fib_entry, flags));
1267  }
1268  esrc->fes_entry_flags = flags;
1269 
1270  if (1 != esrc->fes_ref_count)
1271  {
1272  /*
1273  * we only want to add the source on the 0->1 transition
1274  */
1275  return (fib_entry);
1276  }
1277 
1278  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_add,
1279  (esrc,
1280  fib_entry,
1281  flags,
1282  fib_entry_get_dpo_proto(fib_entry),
1283  dpo));
1284 
1286 
1287  fib_path_list_lock(esrc->fes_pl);
1288 
1289  /*
1290  * the source owns a lock on the entry
1291  */
1292  fib_entry_lock(fib_entry_get_index(fib_entry));
1293 
1294  return (fib_entry);
1295 }
1296 
1297 /*
1298  * fib_entry_src_action_update
1299  *
1300  * Adding a source can result in a new fib_entry being created, which
1301  * can inturn mean the pool is realloc'd and thus the entry passed as
1302  * an argument it also realloc'd
1303  * @return the original entry
1304  */
1305 fib_entry_t *
1307  fib_source_t source,
1309  const dpo_id_t *dpo)
1310 {
1311  fib_node_index_t old_path_list_index;
1313 
1314  esrc = fib_entry_src_find_or_create(fib_entry, source, flags);
1315 
1316  if (NULL == esrc)
1317  {
1318  return (fib_entry_src_action_add(fib_entry, source, flags, dpo));
1319  }
1320 
1321  old_path_list_index = esrc->fes_pl;
1322  esrc->fes_entry_flags = flags;
1323 
1324  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_add,
1325  (esrc,
1326  fib_entry,
1327  flags,
1328  fib_entry_get_dpo_proto(fib_entry),
1329  dpo));
1330 
1332 
1333  fib_path_list_lock(esrc->fes_pl);
1334  fib_path_list_unlock(old_path_list_index);
1335 
1336  return (fib_entry);
1337 }
1338 
1341  fib_source_t source)
1342 {
1344 
1345  esrc = fib_entry_src_find(fib_entry, source);
1346 
1347  if (NULL == esrc)
1348  return (FIB_ENTRY_SRC_FLAG_ACTIVE);
1349 
1352  {
1353  fib_entry_src_t *cover_src;
1354  fib_node_index_t coveri;
1355  fib_entry_t *cover;
1356 
1357  /*
1358  * this source was pushing inherited state, but so is its
1359  * cover. Now that this source is going away, we need to
1360  * pull the covers forwarding and use it to update the covereds.
1361  * Go grab the path-list from the cover, rather than start a walk from
1362  * the cover, so we don't recursively update this entry.
1363  */
1364  coveri = fib_table_get_less_specific(fib_entry->fe_fib_index,
1365  &fib_entry->fe_prefix);
1366 
1367  /*
1368  * only the default route has itself as its own cover, but the
1369  * default route cannot have inherited from something else.
1370  */
1371  ASSERT(coveri != fib_entry_get_index(fib_entry));
1372 
1373  cover = fib_entry_get(coveri);
1374  cover_src = fib_entry_src_find(cover, source);
1375 
1376  ASSERT(NULL != cover_src);
1377 
1378  esrc = fib_entry_src_action_update_from_cover(fib_entry, cover_src);
1380 
1381  /*
1382  * Now push the new state from the cover down to the covereds
1383  */
1384  fib_entry_src_covered_inherit_add(fib_entry, source);
1385 
1386  return (esrc->fes_flags);
1387  }
1388  else
1389  {
1390  return (fib_entry_src_action_remove(fib_entry, source));
1391  }
1392 }
1393 
1396  fib_source_t source)
1397 
1398 {
1399  fib_node_index_t old_path_list;
1400  fib_entry_src_flag_t sflags;
1402 
1403  esrc = fib_entry_src_find(fib_entry, source);
1404 
1405  if (NULL == esrc)
1406  return (FIB_ENTRY_SRC_FLAG_ACTIVE);
1407 
1408  esrc->fes_ref_count--;
1409  sflags = esrc->fes_flags;
1410 
1411  if (0 != esrc->fes_ref_count)
1412  {
1413  /*
1414  * only remove the source on the 1->0 transisition
1415  */
1416  return (sflags);
1417  }
1418 
1420  {
1421  fib_entry_src_action_deactivate(fib_entry, source);
1422  }
1423  else if (esrc->fes_flags & FIB_ENTRY_SRC_FLAG_CONTRIBUTING)
1424  {
1425  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_deactivate,
1426  (esrc, fib_entry));
1428  }
1429 
1430  old_path_list = esrc->fes_pl;
1431 
1432  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_remove, (esrc));
1433 
1434  fib_path_list_unlock(old_path_list);
1436 
1437  sflags &= ~FIB_ENTRY_SRC_FLAG_ADDED;
1438  fib_entry_src_action_deinit(fib_entry, source);
1439 
1440  return (sflags);
1441 }
1442 
1443 /*
1444  * fib_route_attached_cross_table
1445  *
1446  * Return true the the route is attached via an interface that
1447  * is not in the same table as the route
1448  */
1449 static inline int
1451  const fib_route_path_t *rpath)
1452 {
1453  /*
1454  * - All zeros next-hop
1455  * - a valid interface
1456  * - entry's fib index not equeal to interface's index
1457  */
1458  if (ip46_address_is_zero(&rpath->frp_addr) &&
1459  (~0 != rpath->frp_sw_if_index) &&
1460  !(rpath->frp_flags & FIB_ROUTE_PATH_DVR) &&
1461  (fib_entry->fe_fib_index !=
1463  rpath->frp_sw_if_index)))
1464  {
1465  return (!0);
1466  }
1467  return (0);
1468 }
1469 
1470 /*
1471  * Return true if the path is attached
1472  */
1473 static inline int
1475 {
1476  /*
1477  * DVR paths are not attached, since we are not playing the
1478  * L3 game with these
1479  */
1480  if (rpath->frp_flags & FIB_ROUTE_PATH_DVR)
1481  {
1482  return (0);
1483  }
1484 
1485  /*
1486  * - All zeros next-hop
1487  * - a valid interface
1488  */
1489  if (ip46_address_is_zero(&rpath->frp_addr) &&
1490  (~0 != rpath->frp_sw_if_index))
1491  {
1492  return (!0);
1493  }
1494  else if (rpath->frp_flags & FIB_ROUTE_PATH_ATTACHED)
1495  {
1496  return (!0);
1497  }
1498  return (0);
1499 }
1500 
1503 {
1505 
1506  if (eflags & FIB_ENTRY_FLAG_DROP)
1507  {
1508  plf |= FIB_PATH_LIST_FLAG_DROP;
1509  }
1510  if (eflags & FIB_ENTRY_FLAG_EXCLUSIVE)
1511  {
1513  }
1514  if (eflags & FIB_ENTRY_FLAG_LOCAL)
1515  {
1516  plf |= FIB_PATH_LIST_FLAG_LOCAL;
1517  }
1518 
1519  return (plf);
1520 }
1521 
1522 static void
1524  const fib_route_path_t *rpaths,
1525  fib_path_list_flags_t *pl_flags,
1527 {
1528  const fib_route_path_t *rpath;
1529 
1530  vec_foreach(rpath, rpaths)
1531  {
1532  if ((esrc->fes_src == FIB_SOURCE_API) ||
1533  (esrc->fes_src == FIB_SOURCE_CLI))
1534  {
1535  if (fib_path_is_attached(rpath))
1536  {
1538  }
1539  else
1540  {
1542  }
1543  if (rpath->frp_flags & FIB_ROUTE_PATH_DEAG)
1544  {
1546  }
1547  }
1548  if (fib_route_attached_cross_table(fib_entry, rpath) &&
1550  {
1552  }
1553  else
1554  {
1556  }
1557  }
1558 }
1559 
1560 /*
1561  * fib_entry_src_action_add
1562  *
1563  * Adding a source can result in a new fib_entry being created, which
1564  * can inturn mean the pool is realloc'd and thus the entry passed as
1565  * an argument it also realloc'd
1566  * @return the entry
1567  */
1568 fib_entry_t*
1570  fib_source_t source,
1572  const fib_route_path_t *rpaths)
1573 {
1574  fib_node_index_t old_path_list;
1575  fib_path_list_flags_t pl_flags;
1577 
1578  esrc = fib_entry_src_find(fib_entry, source);
1579  if (NULL == esrc)
1580  {
1581  const dpo_id_t *dpo;
1582 
1583  if (flags == FIB_ENTRY_FLAG_EXCLUSIVE) {
1584  dpo = &rpaths->dpo;
1585  } else {
1586  dpo = drop_dpo_get(fib_entry_get_dpo_proto(fib_entry));
1587  }
1588 
1589  fib_entry =
1590  fib_entry_src_action_add(fib_entry,
1591  source,
1592  flags,
1593  dpo);
1594  esrc = fib_entry_src_find(fib_entry, source);
1595  }
1596 
1597  /*
1598  * we are no doubt modifying a path-list. If the path-list
1599  * is shared, and hence not modifiable, then the index returned
1600  * will be for a different path-list. This FIB entry to needs
1601  * to maintain its lock appropriately.
1602  */
1603  old_path_list = esrc->fes_pl;
1604 
1605  ASSERT(FIB_ENTRY_SRC_VFT_EXISTS(esrc, fesv_path_add));
1606 
1608  fib_entry_flags_update(fib_entry, rpaths, &pl_flags, esrc);
1609 
1610  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_path_add,
1611  (esrc, fib_entry, pl_flags, rpaths));
1612 
1613  fib_path_list_lock(esrc->fes_pl);
1614  fib_path_list_unlock(old_path_list);
1615 
1616  return (fib_entry);
1617 }
1618 
1619 /*
1620  * fib_entry_src_action_swap
1621  *
1622  * The source is providing new paths to replace the old ones.
1623  * Adding a source can result in a new fib_entry being created, which
1624  * can inturn mean the pool is realloc'd and thus the entry passed as
1625  * an argument it also realloc'd
1626  * @return the entry
1627  */
1628 fib_entry_t*
1630  fib_source_t source,
1632  const fib_route_path_t *rpaths)
1633 {
1634  fib_node_index_t old_path_list;
1635  fib_path_list_flags_t pl_flags;
1637 
1638  esrc = fib_entry_src_find(fib_entry, source);
1639 
1640  if (NULL == esrc)
1641  {
1642  const dpo_id_t *dpo;
1643 
1644  if (flags == FIB_ENTRY_FLAG_EXCLUSIVE) {
1645  dpo = &rpaths->dpo;
1646  } else {
1647  dpo = drop_dpo_get(fib_entry_get_dpo_proto(fib_entry));
1648  }
1649 
1650  fib_entry = fib_entry_src_action_add(fib_entry,
1651  source,
1652  flags,
1653  dpo);
1654  esrc = fib_entry_src_find(fib_entry, source);
1655  }
1656  else
1657  {
1658  if (flags != esrc->fes_entry_flags)
1659  {
1660  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_flags_change,
1661  (esrc, fib_entry, flags));
1662  }
1663  esrc->fes_entry_flags = flags;
1664  }
1665 
1666  /*
1667  * swapping paths may create a new path-list (or may use an existing shared)
1668  * but we are certainly getting a different one. This FIB entry to needs
1669  * to maintain its lock appropriately.
1670  */
1671  old_path_list = esrc->fes_pl;
1672 
1673  ASSERT(FIB_ENTRY_SRC_VFT_EXISTS(esrc, fesv_path_swap));
1674 
1675  pl_flags = fib_entry_src_flags_2_path_list_flags(flags);
1676 
1677  fib_entry_flags_update(fib_entry, rpaths, &pl_flags, esrc);
1678 
1679  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_path_swap,
1680  (esrc, fib_entry,
1681  pl_flags, rpaths));
1682 
1683  fib_path_list_lock(esrc->fes_pl);
1684  fib_path_list_unlock(old_path_list);
1685 
1686  return (fib_entry);
1687 }
1688 
1691  fib_source_t source,
1692  const fib_route_path_t *rpaths)
1693 {
1694  fib_path_list_flags_t pl_flags;
1695  fib_node_index_t old_path_list;
1697 
1698  esrc = fib_entry_src_find(fib_entry, source);
1699 
1700  ASSERT(NULL != esrc);
1702 
1703  /*
1704  * we no doubt modifying a path-list. If the path-list
1705  * is shared, and hence not modifiable, then the index returned
1706  * will be for a different path-list. This FIB entry to needs
1707  * to maintain its lock appropriately.
1708  */
1709  old_path_list = esrc->fes_pl;
1710 
1711  ASSERT(FIB_ENTRY_SRC_VFT_EXISTS(esrc, fesv_path_remove));
1712 
1714  fib_entry_flags_update(fib_entry, rpaths, &pl_flags, esrc);
1715 
1716  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_path_remove,
1717  (esrc, pl_flags, rpaths));
1718 
1719  /*
1720  * lock the new path-list, unlock the old if it had one
1721  */
1722  fib_path_list_unlock(old_path_list);
1723 
1724  if (FIB_NODE_INDEX_INVALID != esrc->fes_pl) {
1725  fib_path_list_lock(esrc->fes_pl);
1726  return (FIB_ENTRY_SRC_FLAG_ADDED);
1727  }
1728  else
1729  {
1730  /*
1731  * no more paths left from this source
1732  */
1734  return (FIB_ENTRY_SRC_FLAG_NONE);
1735  }
1736 }
1737 
1738 u8*
1740  fib_source_t source,
1741  u8* s)
1742 {
1744 
1745  esrc = fib_entry_src_find(fib_entry, source);
1746 
1747  FIB_ENTRY_SRC_VFT_INVOKE_AND_RETURN(esrc, fesv_format, (esrc, s));
1748 
1749  return (s);
1750 }
1751 
1754  fib_source_t source)
1755 {
1758 
1759  if (FIB_NODE_INDEX_INVALID == fib_entry_index)
1760  return (ADJ_INDEX_INVALID);
1761 
1762  fib_entry = fib_entry_get(fib_entry_index);
1763  esrc = fib_entry_src_find(fib_entry, source);
1764 
1765  if (NULL != esrc)
1766  {
1767  if (FIB_NODE_INDEX_INVALID != esrc->fes_pl)
1768  {
1769  return (fib_path_list_get_adj(
1770  esrc->fes_pl,
1771  fib_entry_get_default_chain_type(fib_entry)));
1772  }
1773  }
1774  return (ADJ_INDEX_INVALID);
1775 }
1776 
1777 const int
1779  fib_source_t source,
1780  dpo_id_t *dpo)
1781 {
1784 
1785  if (FIB_NODE_INDEX_INVALID == fib_entry_index)
1786  return (0);
1787 
1788  fib_entry = fib_entry_get(fib_entry_index);
1789  esrc = fib_entry_src_find(fib_entry, source);
1790 
1791  if (NULL != esrc)
1792  {
1793  if (FIB_NODE_INDEX_INVALID != esrc->fes_pl)
1794  {
1796  esrc->fes_pl,
1799  dpo);
1800 
1801  return (dpo_id_is_valid(dpo));
1802  }
1803  }
1804  return (0);
1805 }
1806 
1807 u32
1809  fib_source_t source)
1810 {
1813 
1814  fib_entry = fib_entry_get(entry_index);
1815 
1816  esrc = fib_entry_src_find(fib_entry, source);
1817 
1818  if (NULL != esrc)
1819  {
1820  if (FIB_NODE_INDEX_INVALID != esrc->fes_pl)
1821  {
1823  }
1824  }
1825  return (~0);
1826 }
1827 
1830  fib_source_t source)
1831 {
1834 
1835  fib_entry = fib_entry_get(entry_index);
1836 
1837  esrc = fib_entry_src_find(fib_entry, source);
1838 
1839  if (NULL != esrc)
1840  {
1841  return (esrc->fes_entry_flags);
1842  }
1843 
1844  return (FIB_ENTRY_FLAG_NONE);
1845 }
1846 
1849 {
1850  /* the vector of sources is deliberately arranged in priority order */
1851  if (0 == vec_len(fib_entry->fe_srcs))
1852  return (FIB_SOURCE_INVALID);
1853  return (vec_elt(fib_entry->fe_srcs, 0).fes_src);
1854 }
1855 
1858 {
1859  /* the vector of sources is deliberately arranged in priority order */
1860  if (0 == vec_len(fib_entry->fe_srcs))
1861  return (FIB_ENTRY_FLAG_NONE);
1862  return (vec_elt(fib_entry->fe_srcs, 0).fes_entry_flags);
1863 }
1864 
1865 void
1867  fib_source_t source,
1868  const void *data)
1869 {
1872 
1873  fib_entry = fib_entry_get(fib_entry_index);
1874  esrc = fib_entry_src_find(fib_entry, source);
1875 
1876  if (NULL != esrc)
1877  {
1878  FIB_ENTRY_SRC_VFT_INVOKE(fib_entry, esrc, fesv_set_data,
1879  (esrc, fib_entry, data));
1880  }
1881 }
1882 
1883 const void*
1885  fib_source_t source)
1886 {
1889 
1890  fib_entry = fib_entry_get(fib_entry_index);
1891  esrc = fib_entry_src_find(fib_entry, source);
1892 
1893  if (NULL != esrc)
1894  {
1895  FIB_ENTRY_SRC_VFT_INVOKE_AND_RETURN(esrc, fesv_get_data,
1896  (esrc, fib_entry));
1897  }
1898  return (NULL);
1899 }
1900 
1901 void
1903 {
1913 }
static int fib_entry_src_cmp_for_sort(void *v1, void *v2)
Definition: fib_entry_src.c:73
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:509
int fib_path_is_resolved(fib_node_index_t path_index)
Definition: fib_path.c:2683
fib_protocol_t fp_proto
protocol type
Definition: fib_types.h:212
Contribute an object that is to be used to forward BIER packets.
Definition: fib_types.h:122
uRPF bypass/exemption.
Definition: fib_source.h:124
enum fib_source_t_ fib_source_t
The different sources that can create a route.
Contribute an object that is to be used to forward IP6 packets.
Definition: fib_types.h:137
#define FIB_ENTRY_DBG(_e, _fmt, _args...)
Definition: fib_entry_src.h:28
ip46_address_t frp_addr
The next-hop address.
Definition: fib_types.h:506
Continue on to the next entry.
Definition: fib_table.h:916
void fib_table_fwding_dpo_remove(u32 fib_index, const fib_prefix_t *prefix, const dpo_id_t *dpo)
remove an entry in the FIB&#39;s forwarding table
Definition: fib_table.c:280
fib_path_ext_type_t fpe_type
The type of path extension.
Definition: fib_path_ext.h:126
void fib_entry_unlock(fib_node_index_t fib_entry_index)
Definition: fib_entry.c:1642
A path that resolves via a DVR DPO.
Definition: fib_types.h:387
Contribute an object that is to be used to forward IP6 packets.
Definition: fib_types.h:113
Pipe Mode - the default.
Definition: fib_types.h:424
An entry in a FIB table.
Definition: fib_entry.h:305
fib_node_index_t path_index
The index of the FIB path.
Definition: load_balance.h:71
#define CLIB_UNUSED(x)
Definition: clib.h:87
static int fib_entry_src_valid_out_label(mpls_label_t label)
void fib_path_contribute_forwarding(fib_node_index_t path_index, fib_forward_chain_type_t fct, dpo_id_t *dpo)
Definition: fib_path.c:2419
struct fib_entry_src_collect_forwarding_ctx_t_ fib_entry_src_collect_forwarding_ctx_t
static int fib_urpf_check_size(index_t ui)
Data-Plane function to check the size of an uRPF list, (i.e.
void fib_path_list_child_remove(fib_node_index_t path_list_index, u32 si)
u16 fib_source_get_prio(fib_source_t src)
Definition: fib_source.c:49
fib_entry_src_copy_t fesv_copy
vl_api_wireguard_peer_flags_t flags
Definition: wireguard.api:103
fib_protocol_t fib_entry_get_proto(const fib_entry_t *fib_entry)
Definition: fib_entry.c:69
fib_entry_t * fib_entry_src_action_installed(fib_entry_t *fib_entry, fib_source_t source)
fib_entry_flag_t fib_entry_get_flags_i(const fib_entry_t *fib_entry)
A representation of a path as described by a route producer.
Definition: fib_types.h:490
dpo_id_t path_dpo
ID of the Data-path object.
Definition: load_balance.h:66
fib_forward_chain_type_t fct
#define FIB_ENTRY_SRC_VFT_INVOKE_AND_RETURN(esrc, func, args)
fib_entry_t * fib_entry_src_action_path_add(fib_entry_t *fib_entry, fib_source_t source, fib_entry_flag_t flags, const fib_route_path_t *rpaths)
static void fib_entry_src_action_fwd_update(const fib_entry_t *fib_entry, fib_source_t source)
adj_index_t fib_path_list_get_adj(fib_node_index_t path_list_index, fib_forward_chain_type_t type)
void fib_entry_mark(fib_node_index_t fib_entry_index, fib_source_t source)
vl_api_fib_path_nh_t nh
Definition: fib_types.api:126
Virtual function table each FIB entry source will register.
u32 fib_path_list_get_resolving_interface(fib_node_index_t path_list_index)
Definition: fib_entry.h:180
Definition: fib_entry.h:179
static int dpo_id_is_valid(const dpo_id_t *dpoi)
Return true if the DPO object is valid, i.e.
Definition: dpo.h:209
static void fib_entry_src_action_deinit(fib_entry_t *fib_entry, fib_source_t source)
Definition: fib_entry.h:123
Information related to the source of a FIB entry.
Definition: fib_entry.h:197
u32 fib_table_get_index_for_sw_if_index(fib_protocol_t proto, u32 sw_if_index)
Get the index of the FIB bound to the interface.
Definition: fib_table.c:989
Definition: fib_entry.h:118
void load_balance_set_urpf(index_t lbi, index_t urpf)
Definition: load_balance.c:334
An MPLS extension that maintains the path&#39;s outgoing labels,.
Definition: fib_path_ext.h:31
int fib_path_is_exclusive(fib_node_index_t path_index)
Definition: fib_path.c:2663
void fib_entry_src_action_deactivate(fib_entry_t *fib_entry, fib_source_t source)
load_balance_path_t * next_hops
enum fib_entry_delegate_type_t_ fib_entry_delegate_type_t
Delegate types.
u32 mpls_label_t
A label value only, i.e.
Definition: packet.h:26
dpo_proto_t fib_forw_chain_type_to_dpo_proto(fib_forward_chain_type_t fct)
Convert from a chain type to the DPO proto it will install.
Definition: fib_types.c:497
#define MPLS_IETF_IMPLICIT_NULL_LABEL
Definition: mpls_types.h:30
static fib_table_walk_rc_t fib_entry_src_covered_inherit_add_i(fib_entry_t *fib_entry, const fib_entry_src_t *cover_src)
void dpo_copy(dpo_id_t *dst, const dpo_id_t *src)
atomic copy a data-plane object.
Definition: dpo.c:262
u32 index_t
A Data-Path Object is an object that represents actions that are applied to packets are they are swit...
Definition: dpo.h:41
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:592
vl_api_address_t src
Definition: gre.api:54
fib_entry_src_flag_t fib_entry_src_action_path_remove(fib_entry_t *fib_entry, fib_source_t source, const fib_route_path_t *rpaths)
enum fib_source_behaviour_t_ fib_source_behaviour_t
Each source has a defined behaviour that controls how entries behave that have that source...
#define vec_add2(V, P, N)
Add N elements to end of vector V, return pointer to new elements in P.
Definition: vec.h:630
Result from a cover update/change.
Definition: fib_entry_src.h:91
void fib_path_list_walk(fib_node_index_t path_list_index, fib_path_list_walk_fn_t func, void *ctx)
Contribute an object that is to be used to forward IP4 packets.
Definition: fib_types.h:109
fib_entry_src_contribute_interpose_t fesv_contribute_interpose
static fib_entry_src_t * fib_entry_src_find_or_create(fib_entry_t *fib_entry, fib_source_t source, fib_entry_flag_t flags)
Definition: fib_entry.h:121
u32 fe_fib_index
The index of the FIB table this entry is in.
Definition: fib_entry.h:318
Definition: fib_entry.h:114
fib_entry_src_t * fe_srcs
Vector of source infos.
Definition: fib_entry.h:337
static void fib_entry_recursive_loop_detect_i(fib_node_index_t path_list_index)
u32 fib_path_list_child_add(fib_node_index_t path_list_index, fib_node_type_t child_type, fib_node_index_t child_index)
dpo_id_t fd_dpo
Valid for the forwarding chain delegates.
unsigned char u8
Definition: types.h:56
fib_node_index_t fe_parent
the path-list for which this entry is a child.
Definition: fib_entry.h:342
fib_source_t fib_entry_get_source_i(const fib_entry_t *fib_entry)
u8 data[128]
Definition: ipsec_types.api:89
void fib_entry_src_mpls_register(void)
enum fib_protocol_t_ fib_protocol_t
Protocol Type.
#define vec_reset_length(v)
Reset vector length to zero NULL-pointer tolerant.
flow_hash_config_t fib_table_get_flow_hash_config(u32 fib_index, fib_protocol_t proto)
Get the flow hash configured used by the table.
Definition: fib_table.c:1005
#define clib_memcpy(d, s, n)
Definition: string.h:180
index_t load_balance_create(u32 n_buckets, dpo_proto_t lb_proto, flow_hash_config_t fhc)
Definition: load_balance.c:263
const dpo_id_t * drop_dpo_get(dpo_proto_t proto)
Definition: drop_dpo.c:25
void fib_entry_src_adj_register(void)
dpo_proto_t fp_payload_proto
This protocol determines the payload protocol of packets that will be forwarded by this entry once th...
Definition: fib_types.h:236
u32 fe_sibling
index of this entry in the parent&#39;s child list.
Definition: fib_entry.h:348
Definition: fib_entry.h:120
flow_hash_config_t fib_table_get_default_flow_hash_config(fib_protocol_t proto)
Get the flow hash configured used by the protocol.
Definition: fib_table.c:1016
fib_entry_flag_t fib_entry_get_flags_for_source(fib_node_index_t entry_index, fib_source_t source)
const int fib_entry_get_dpo_for_source(fib_node_index_t fib_entry_index, fib_source_t source, dpo_id_t *dpo)
u32 fib_entry_get_resolving_interface_for_source(fib_node_index_t entry_index, fib_source_t source)
static fib_entry_src_t * fib_entry_src_find(const fib_entry_t *fib_entry, fib_source_t source)
void fib_entry_src_lisp_register(void)
u32 frp_sw_if_index
The interface.
Definition: fib_types.h:530
Definition: fib_entry.h:181
index_t fib_urpf_list_alloc_and_lock(void)
Definition: fib_urpf_list.c:55
void fib_entry_src_simple_register(void)
static fib_entry_src_t * fib_entry_src_action_update_from_cover(fib_entry_t *fib_entry, const fib_entry_src_t *orig_src)
#define MPLS_IS_REPLICATE
The top bit of the index, which is the result of the MPLS lookup is used to determine if the DPO is a...
Definition: mpls_types.h:66
Aggregate type for a prefix.
Definition: fib_types.h:203
fib_node_index_t fib_entry_get_index(const fib_entry_t *fib_entry)
Definition: fib_entry.c:63
void dpo_mk_interpose(const dpo_id_t *original, const dpo_id_t *parent, dpo_id_t *clone)
Make an interpose DPO from an original.
Definition: dpo.c:353
static void fib_entry_flags_update(const fib_entry_t *fib_entry, const fib_route_path_t *rpaths, fib_path_list_flags_t *pl_flags, fib_entry_src_t *esrc)
void load_balance_multipath_update(const dpo_id_t *dpo, const load_balance_path_t *raw_nhs, load_balance_flags_t flags)
Definition: load_balance.c:626
unsigned int u32
Definition: types.h:88
Contribute an object that is to be used to forward Ethernet packets.
Definition: fib_types.h:141
enum dpo_proto_t_ dpo_proto_t
Data path protocol.
fib_protocol_t dpo_proto_to_fib(dpo_proto_t dpo_proto)
Definition: fib_types.c:340
void fib_entry_src_api_register(void)
u16 fib_path_get_weight(fib_node_index_t path_index)
Definition: fib_path.c:2244
void fib_urpf_list_append(index_t ui, u32 sw_if_index)
Append another interface to the list.
fib_path_ext_t * fib_path_ext_list_find_by_path_index(const fib_path_ext_list_t *list, fib_node_index_t path_index)
Definition: fib_path_ext.c:326
u16 install
Definition: fib_entry_src.h:92
Definition: fib_entry.h:112
void fib_entry_src_drop_register(void)
u16 preference
#define FOR_EACH_SRC_ADDED(_entry, _src, _source, action)
A adj-source extension indicating the path&#39;s refinement criteria result.
Definition: fib_path_ext.h:36
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:170
Contribute an object that is to be used to forward end-of-stack MPLS packets.
Definition: fib_types.h:129
Definition: fib_entry.h:117
void fib_entry_src_mk_lb(fib_entry_t *fib_entry, const fib_entry_src_t *esrc, fib_forward_chain_type_t fct, dpo_id_t *dpo_lb)
void fib_path_ext_list_flush(fib_path_ext_list_t *list)
Definition: fib_path_ext.c:448
Definition: fib_entry.h:116
static fib_table_walk_rc_t fib_entry_src_covered_inherit_walk_remove(fib_node_index_t fei, void *ctx)
#define ADJ_INDEX_INVALID
Invalid ADJ index - used when no adj is known likewise blazoned capitals INVALID speak volumes where ...
Definition: adj_types.h:36
fib_entry_t * fib_entry_src_action_add(fib_entry_t *fib_entry, fib_source_t source, fib_entry_flag_t flags, const dpo_id_t *dpo)
static int fib_route_attached_cross_table(const fib_entry_t *fib_entry, const fib_route_path_t *rpath)
#define FOR_EACH_DELEGATE_CHAIN(_entry, _fdt, _fed, _body)
dpo_type_t dpoi_type
the type
Definition: dpo.h:174
static u8 ip46_address_is_zero(const ip46_address_t *ip46)
Definition: ip46_address.h:87
long ctx[MAX_CONNS]
Definition: main.c:144
unsigned short u16
Definition: types.h:57
Definition: fib_entry.h:182
void load_balance_set_fib_entry_flags(index_t lbi, fib_entry_flag_t flags)
Definition: load_balance.c:323
load-balancing over a choice of [un]equal cost paths
Definition: dpo.h:102
void fib_entry_src_interpose_register(void)
#define MPLS_LABEL_IS_REAL(_lbl)
Definition: mpls_types.h:58
#define FIB_ENTRY_SRC_VFT_EXISTS(esrc, func)
u8 n_nhs
Definition: gbp.api:312
const fib_entry_src_vft_t * fib_entry_src_get_vft(const fib_entry_src_t *esrc)
Get the VFT for a given source.
Definition: fib_entry_src.c:38
#define vec_del1(v, i)
Delete the element at index I.
Definition: vec.h:875
void fib_table_fwding_dpo_update(u32 fib_index, const fib_prefix_t *prefix, const dpo_id_t *dpo)
Add or update an entry in the FIB&#39;s forwarding table.
Definition: fib_table.c:253
static void fib_entry_src_get_path_forwarding(fib_node_index_t path_index, fib_entry_src_collect_forwarding_ctx_t *ctx)
void fib_path_list_lock(fib_node_index_t path_list_index)
u32 label
Definition: fib_types.api:25
static fib_entry_src_t * fib_entry_src_find_i(const fib_entry_t *fib_entry, fib_source_t source, u32 *index)
void fib_path_stack_mpls_disp(fib_node_index_t path_index, dpo_proto_t payload_proto, fib_mpls_lsp_mode_t mode, dpo_id_t *dpo)
Definition: fib_path.c:2358
#define FIB_SOURCE_BH_MAX
Definition: fib_source.h:225
dpo_id_t dpo
Exclusive DPO.
Definition: fib_types.h:555
fib_entry_src_flag_t fib_entry_src_action_remove_or_update_inherit(fib_entry_t *fib_entry, fib_source_t source)
fib_entry_src_flag_t fib_entry_src_action_remove(fib_entry_t *fib_entry, fib_source_t source)
void replicate_multipath_update(const dpo_id_t *dpo, load_balance_path_t *next_hops)
From the CLI.
Definition: fib_source.h:76
int fib_path_list_is_popular(fib_node_index_t path_list_index)
Definition: fib_entry.h:177
Contribute an object that is to be used to forward NSH packets.
Definition: fib_types.h:147
enum fib_table_walk_rc_t_ fib_table_walk_rc_t
return code controlling how a table walk proceeds
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:380
void fib_entry_src_action_activate(fib_entry_t *fib_entry, fib_source_t source)
void fib_urpf_list_bake(index_t ui)
Convert the uRPF list from the itf set obtained during the walk to a unique list. ...
void fib_entry_source_change(fib_entry_t *fib_entry, fib_source_t old_source, fib_source_t new_source)
Definition: fib_entry.c:861
void fib_entry_src_rr_register(void)
#define MPLS_IETF_IPV4_EXPLICIT_NULL_LABEL
Definition: mpls_types.h:27
fib_path_list_flags_t fib_entry_src_flags_2_path_list_flags(fib_entry_flag_t eflags)
Definition: fib_entry.h:122
fib_entry_src_cover_res_t fib_entry_src_action_cover_change(fib_entry_t *fib_entry, fib_entry_src_t *esrc)
Definition: fib_entry.h:115
u32 fib_path_list_get_n_paths(fib_node_index_t path_list_index)
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:30
u32 adj_index_t
An index for adjacencies.
Definition: adj_types.h:30
fib_forward_chain_type_t fib_entry_delegate_type_to_chain_type(fib_entry_delegate_type_t fdt)
void dpo_set(dpo_id_t *dpo, dpo_type_t type, dpo_proto_t proto, index_t index)
Set/create a DPO ID The DPO will be locked.
Definition: dpo.c:186
void fib_path_list_unlock(fib_node_index_t path_list_index)
index_t replicate_create(u32 n_buckets, dpo_proto_t rep_proto)
fib_entry_t * fib_entry_get(fib_node_index_t index)
Definition: fib_entry.c:51
static fib_table_walk_rc_t fib_entry_src_covered_inherit_walk_add(fib_node_index_t fei, void *ctx)
enum fib_entry_flag_t_ fib_entry_flag_t
void fib_entry_src_interface_register(void)
void fib_entry_lock(fib_node_index_t fib_entry_index)
Definition: fib_entry.c:1632
int fib_path_list_recursive_loop_detect(fib_node_index_t path_list_index, fib_node_index_t **entry_indicies)
static void fib_entry_src_covered_inherit_add(fib_entry_t *fib_entry, fib_source_t source)
fib_entry_flag_t fes_entry_flags
Flags the source contributes to the entry.
Definition: fib_entry.h:211
int n_recursive_constrained
fib_source_t fes_src
Which source this info block is for.
Definition: fib_entry.h:216
fib_source_behaviour_t fib_source_get_behaviour(fib_source_t src)
Definition: fib_source.c:58
#define ASSERT(truth)
fib_entry_src_flag_t fes_flags
Flags on the source.
Definition: fib_entry.h:221
fib_entry_t * fib_entry_src_action_path_swap(fib_entry_t *fib_entry, fib_source_t source, fib_entry_flag_t flags, const fib_route_path_t *rpaths)
int fib_path_is_deag(fib_node_index_t path_index)
Definition: fib_path.c:2673
void fib_entry_src_module_init(void)
int fib_entry_is_marked(fib_node_index_t fib_entry_index, fib_source_t source)
enum fib_forward_chain_type_t_ fib_forward_chain_type_t
FIB output chain type.
fib_route_path_flags_t frp_flags
flags on the path
Definition: fib_types.h:600
From the control plane API.
Definition: fib_source.h:72
fib_entry_t * fib_entry_src_action_update(fib_entry_t *fib_entry, fib_source_t source, fib_entry_flag_t flags, const dpo_id_t *dpo)
Definition: fib_entry.h:178
enum fib_entry_src_flag_t_ fib_entry_src_flag_t
#define MPLS_LABEL_POP
A value that is explicit about the end of the LSP.
Definition: mpls_types.h:56
A path that resolves via another table.
Definition: fib_types.h:383
u32 flow_hash_config_t
A flow hash configuration is a mask of the flow hash options.
Definition: lookup.h:84
#define FIB_ENTRY_SRC_VFT_INVOKE(_fe, esrc, func, args)
fib_forward_chain_type_t fib_entry_get_default_chain_type(const fib_entry_t *fib_entry)
Definition: fib_entry.c:81
Do no traverse down this sub-tree.
Definition: fib_table.h:920
int fib_entry_is_sourced(fib_node_index_t fib_entry_index, fib_source_t source)
u32 entries
dpo_id_t fe_lb
The load-balance used for forwarding.
Definition: fib_entry.h:331
#define vec_elt(v, i)
Get vector value at index i.
fib_node_index_t fes_pl
The path-list created by the source.
Definition: fib_entry.h:206
void fib_entry_src_inherit(const fib_entry_t *cover, fib_entry_t *covered)
static dpo_proto_t fib_prefix_get_payload_proto(const fib_prefix_t *pfx)
enum load_balance_flags_t_ load_balance_flags_t
int fib_path_is_recursive_constrained(fib_node_index_t path_index)
Definition: fib_path.c:2651
static void fib_entry_src_covered_inherit_remove(fib_entry_t *fib_entry, fib_entry_src_t *esrc)
fib_path_ext_adj_flags_t fpe_adj_flags
For an ADJ type extension.
Definition: fib_path_ext.h:114
const fib_entry_src_t * esrc
enum fib_path_list_walk_rc_t_ fib_path_list_walk_rc_t
return code to control pat-hlist walk
static void fib_entry_src_action_init(fib_entry_t *fib_entry, fib_source_t source, fib_entry_flag_t flags)
Definition: fib_entry_src.c:83
index_t dpoi_index
the index of objects of that type
Definition: dpo.h:186
#define FIB_NODE_INDEX_INVALID
Definition: fib_types.h:31
union fib_entry_src_t_::@275 u
Source specific info.
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
u32 path_weight
weight for the path.
Definition: load_balance.h:76
An invalid source This is not a real source, so don&#39;t use it to source a prefix.
Definition: fib_source.h:32
u16 fib_path_get_preference(fib_node_index_t path_index)
Definition: fib_path.c:2256
#define vec_sort_with_function(vec, f)
Sort a vector using the supplied element comparison function.
Definition: vec.h:1055
fib_entry_src_activate_t fesv_activate
#define DPO_INVALID
An initialiser for DPOs declared on the stack.
Definition: dpo.h:197
u32 index
Definition: flow_types.api:221
void fib_urpf_list_unlock(index_t ui)
Definition: fib_urpf_list.c:68
#define MPLS_IETF_IPV6_EXPLICIT_NULL_LABEL
Definition: mpls_types.h:29
One path from an [EU]CMP set that the client wants to add to a load-balance object.
Definition: load_balance.h:62
u8 * fib_entry_src_format(fib_entry_t *fib_entry, fib_source_t source, u8 *s)
void fib_path_list_contribute_forwarding(fib_node_index_t path_list_index, fib_forward_chain_type_t fct, fib_path_list_fwd_flags_t flags, dpo_id_t *dpo)
void fib_entry_set_source_data(fib_node_index_t fib_entry_index, fib_source_t source, const void *data)
index_t fib_path_list_get_urpf(fib_node_index_t path_list_index)
Return the the child the RPF list pre-built for this path list.
fib_forward_chain_type_t fib_entry_chain_type_fixup(const fib_entry_t *entry, fib_forward_chain_type_t fct)
Turn the chain type requested by the client into the one they really wanted.
void fib_entry_src_action_reactivate(fib_entry_t *fib_entry, fib_source_t source)
load_balance_flags_t fib_entry_calc_lb_flags(fib_entry_src_collect_forwarding_ctx_t *ctx)
Determine whether this FIB entry should use a load-balance MAP to support PIC edge fast convergence...
const fib_entry_t * fib_entry
static fib_path_list_walk_rc_t fib_entry_src_collect_forwarding(fib_node_index_t pl_index, fib_node_index_t path_index, void *arg)
void dpo_reset(dpo_id_t *dpo)
reset a DPO ID The DPO will be unlocked.
Definition: dpo.c:232
#define vec_foreach(var, vec)
Vector iterator.
A path extension is a per-entry addition to the forwarding information when packets are sent for that...
Definition: fib_path_ext.h:98
adj_index_t fib_entry_get_adj_for_source(fib_node_index_t fib_entry_index, fib_source_t source)
u8 fes_ref_count
1 bytes ref count.
Definition: fib_entry.h:228
fib_path_ext_list_t fes_path_exts
A vector of path extensions.
Definition: fib_entry.h:201
dpo_proto_t fib_entry_get_dpo_proto(const fib_entry_t *fib_entry)
Definition: fib_entry.c:75
static int fib_path_is_attached(const fib_route_path_t *rpath)
static void fib_entry_src_copy_default(const fib_entry_src_t *orig_src, const fib_entry_t *fib_entry, fib_entry_src_t *copy_src)
Definition: fib_entry_src.c:53
Contribute an object that is to be used to forward non-end-of-stack MPLS packets. ...
Definition: fib_types.h:118
const void * fib_entry_get_source_data(fib_node_index_t fib_entry_index, fib_source_t source)
Attached path.
Definition: fib_types.h:342
enum fib_path_list_flags_t_ fib_path_list_flags_t
A Delagate is a means to implmenet the Delagation design pattern; the extension of an objects functio...
void fib_table_sub_tree_walk(u32 fib_index, fib_protocol_t proto, const fib_prefix_t *root, fib_table_walk_fn_t fn, void *ctx)
Walk all entries in a sub-tree FIB table.
Definition: fib_table.c:1250
void fib_entry_src_behaviour_register(fib_source_behaviour_t bh, const fib_entry_src_vft_t *vft)
Definition: fib_entry_src.c:61
fib_source_t fib_entry_get_best_source(fib_node_index_t entry_index)
Definition: fib_entry.c:1468
Contribute an object that is to be used to forward IP4 packets.
Definition: fib_types.h:133
Definition: fib_entry.h:119
fib_forward_chain_type_t fib_forw_chain_type_from_dpo_proto(dpo_proto_t proto)
Convert from a payload-protocol to a chain type.
Definition: fib_types.c:408
void fib_entry_src_action_install(fib_entry_t *fib_entry, fib_source_t source)
fib_entry_src_cover_res_t fib_entry_src_action_cover_update(fib_entry_t *fib_entry, fib_entry_src_t *esrc)
const fib_prefix_t fe_prefix
The prefix of the route.
Definition: fib_entry.h:314
fib_entry_src_flag_t fib_entry_special_remove(fib_node_index_t fib_entry_index, fib_source_t source)
Definition: fib_entry.c:1099
fib_entry_src_reactivate_t fesv_reactivate
void fib_entry_src_action_uninstall(fib_entry_t *fib_entry)
static fib_entry_t * fib_entry_src_action_copy(fib_entry_t *fib_entry, const fib_entry_src_t *orig_src)
fib_node_index_t fib_table_get_less_specific(u32 fib_index, const fib_prefix_t *prefix)
Get the less specific (covering) prefix.
Definition: fib_table.c:133
load_balance_path_t * fib_path_ext_stack(fib_path_ext_t *path_ext, fib_forward_chain_type_t child_fct, fib_forward_chain_type_t imp_null_fct, load_balance_path_t *nhs)
Definition: fib_path_ext.c:165