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Vector Packet Processing
mfib_entry.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 <vlib/vlib.h>
17 
18 #include <vnet/mfib/mfib_entry.h>
19 #include <vnet/fib/fib_path_list.h>
20 
21 #include <vnet/dpo/drop_dpo.h>
22 #include <vnet/dpo/replicate_dpo.h>
23 
24 /**
25  * Debug macro
26  */
27 #ifdef MFIB_DEBUG
28 #DEFIne MFIB_ENTRY_DBG(_e, _fmt, _args...) \
29 { \
30  u8*__tmp = NULL; \
31  __tmp = format(__tmp, "e:[%d:%U", \
32  mfib_entry_get_index(_e), \
33  format_ip46_address, \
34  &_e->mfe_prefix.fp_grp_addr, \
35  IP46_TYPE_ANY); \
36  __tmp = format(__tmp, "/%d,", \
37  _e->mfe_prefix.fp_len); \
38  __tmp = format(__tmp, "%U]", \
39  mfib_entry_get_index(_e), \
40  format_ip46_address, \
41  &_e->mfe_prefix.fp_src_addr, \
42  IP46_TYPE_ANY); \
43  __tmp = format(__tmp, _fmt, ##_args); \
44  clib_warning("%s", __tmp); \
45  vec_free(__tmp); \
46 }
47 #else
48 #define MFIB_ENTRY_DBG(_e, _fmt, _args...)
49 #endif
50 
51 /**
52  * MFIB extensions to each path
53  */
54 typedef struct mfib_path_ext_t_
55 {
59 
60 /**
61  * The source of an MFIB entry
62  */
63 typedef struct mfib_entry_src_t_
64 {
65  /**
66  * Which source this is
67  */
69 
70  /**
71  * Route flags
72  */
74 
75  /**
76  * The path-list of forwarding interfaces
77  */
79 
80  /**
81  * RPF-ID
82  */
84 
85  /**
86  * Hash table of path extensions
87  */
89 
90  /**
91  * The hash table of all interfaces.
92  * This is forwarding time information derived from the paths
93  * and their extensions.
94  */
97 
98 /**
99  * Pool of path extensions
100  */
102 
103 /**
104  * String names for each source
105  */
106 static const char *mfib_source_names[] = MFIB_SOURCE_NAMES;
107 
108 /*
109  * Pool for all fib_entries
110  */
112 
113 static fib_node_t *
115 {
116  return ((fib_node_t*)mfib_entry_get(index));
117 }
118 
119 static fib_protocol_t
120 mfib_entry_get_proto (const mfib_entry_t * mfib_entry)
121 {
122  return (mfib_entry->mfe_prefix.fp_proto);
123 }
124 
127 {
128  switch (mfib_entry->mfe_prefix.fp_proto)
129  {
130  case FIB_PROTOCOL_IP4:
132  case FIB_PROTOCOL_IP6:
134  case FIB_PROTOCOL_MPLS:
135  ASSERT(0);
136  break;
137  }
139 }
140 
141 static u8 *
142 format_mfib_entry_dpo (u8 * s, va_list * args)
143 {
144  index_t fei = va_arg(*args, index_t);
145  CLIB_UNUSED(u32 indent) = va_arg(*args, u32);
146 
147  return (format(s, "%U",
148  format_mfib_entry, fei,
150 }
151 
152 static inline mfib_path_ext_t *
154 {
155  return (pool_elt_at_index(mfib_path_ext_pool, mi));
156 }
157 
158 static u8 *
159 format_mfib_entry_path_ext (u8 * s, va_list * args)
160 {
161  mfib_path_ext_t *path_ext;
162  index_t mpi = va_arg(*args, index_t);
163 
164  path_ext = mfib_entry_path_ext_get(mpi);
165  return (format(s, "path:%d flags:%U",
166  path_ext->mfpe_path,
167  format_mfib_itf_flags, path_ext->mfpe_flags));
168 }
169 
170 u8 *
171 format_mfib_entry (u8 * s, va_list * args)
172 {
173  fib_node_index_t fei, mfi;
174  mfib_entry_t *mfib_entry;
175  mfib_entry_src_t *msrc;
176  u32 sw_if_index;
177  int level;
178 
179  fei = va_arg (*args, fib_node_index_t);
180  level = va_arg (*args, int);
181  mfib_entry = mfib_entry_get(fei);
182 
183  s = format (s, "%U", format_mfib_prefix, &mfib_entry->mfe_prefix);
184  s = format (s, ": %U", format_mfib_entry_flags, mfib_entry->mfe_flags);
185 
186  if (level >= MFIB_ENTRY_FORMAT_DETAIL)
187  {
188  fib_node_index_t path_index, mpi;
189 
190  s = format (s, "\n");
191  s = format (s, " fib:%d", mfib_entry->mfe_fib_index);
192  s = format (s, " index:%d", mfib_entry_get_index(mfib_entry));
193  s = format (s, " locks:%d\n", mfib_entry->mfe_node.fn_locks);
194  vec_foreach(msrc, mfib_entry->mfe_srcs)
195  {
196  s = format (s, " src:%s", mfib_source_names[msrc->mfes_src]);
197  s = format (s, ": %U\n", format_mfib_entry_flags, msrc->mfes_flags);
198  if (FIB_NODE_INDEX_INVALID != msrc->mfes_pl)
199  {
200  s = fib_path_list_format(msrc->mfes_pl, s);
201  }
202  s = format (s, " Extensions:\n");
203  hash_foreach(path_index, mpi, msrc->mfes_exts,
204  ({
205  s = format(s, " %U\n", format_mfib_entry_path_ext, mpi);
206  }));
207  s = format (s, " Interface-Forwarding:\n");
208  hash_foreach(sw_if_index, mfi, msrc->mfes_itfs,
209  ({
210  s = format(s, " %U\n", format_mfib_itf, mfi);
211  }));
212  }
213  }
214 
215  s = format(s, "\n Interfaces:");
216  hash_foreach(sw_if_index, mfi, mfib_entry->mfe_itfs,
217  ({
218  s = format(s, "\n %U", format_mfib_itf, mfi);
219  }));
220  s = format(s, "\n RPF-ID:%d", mfib_entry->mfe_rpf_id);
221  s = format(s, "\n %U-chain\n %U",
225  &mfib_entry->mfe_rep,
226  2);
227  s = format(s, "\n");
228 
229  if (level >= MFIB_ENTRY_FORMAT_DETAIL2)
230  {
231  s = format(s, "\nchildren:");
232  s = fib_node_children_format(mfib_entry->mfe_node.fn_children, s);
233  }
234 
235  return (s);
236 }
237 
238 static mfib_entry_t*
240 {
242  return ((mfib_entry_t*)node);
243 }
244 
245 static int
247  void * v2)
248 {
249  mfib_entry_src_t *esrc1 = v1, *esrc2 = v2;
250 
251  return (esrc1->mfes_src - esrc2->mfes_src);
252 }
253 
254 static void
256  mfib_source_t source)
257 
258 {
259  mfib_entry_src_t esrc = {
261  .mfes_flags = MFIB_ENTRY_FLAG_NONE,
262  .mfes_src = source,
263  };
264 
265  vec_add1(mfib_entry->mfe_srcs, esrc);
266  vec_sort_with_function(mfib_entry->mfe_srcs,
268 }
269 
270 static mfib_entry_src_t *
272  mfib_source_t source,
273  u32 *index)
274 
275 {
276  mfib_entry_src_t *esrc;
277  int ii;
278 
279  ii = 0;
280  vec_foreach(esrc, mfib_entry->mfe_srcs)
281  {
282  if (esrc->mfes_src == source)
283  {
284  if (NULL != index)
285  {
286  *index = ii;
287  }
288  return (esrc);
289  }
290  else
291  {
292  ii++;
293  }
294  }
295 
296  return (NULL);
297 }
298 
299 static mfib_entry_src_t *
301  mfib_source_t source)
302 {
303  mfib_entry_src_t *esrc;
304 
305  esrc = mfib_entry_src_find(mfib_entry, source, NULL);
306 
307  if (NULL == esrc)
308  {
309  mfib_entry_src_init(mfib_entry, source);
310  }
311 
312  return (mfib_entry_src_find(mfib_entry, source, NULL));
313 }
314 
315 static mfib_entry_src_t*
317 {
318  mfib_entry_src_t *bsrc;
319 
320  /*
321  * the enum of sources is deliberately arranged in priority order
322  */
323  if (0 == vec_len(mfib_entry->mfe_srcs))
324  {
325  bsrc = NULL;
326  }
327  else
328  {
329  bsrc = vec_elt_at_index(mfib_entry->mfe_srcs, 0);
330  }
331 
332  return (bsrc);
333 }
334 
335 int
337  mfib_source_t source)
338 {
339  mfib_entry_t *mfib_entry;
340 
341  mfib_entry = mfib_entry_get(mfib_entry_index);
342 
343  return (NULL != mfib_entry_src_find(mfib_entry, source, NULL));
344 }
345 
346 static void
348 {
349  u32 sw_if_index;
350  index_t mfii;
351 
352  hash_foreach(sw_if_index, mfii, msrc->mfes_itfs,
353  ({
354  mfib_itf_delete(mfib_itf_get(mfii));
355  }));
356  hash_free(msrc->mfes_itfs);
357  msrc->mfes_itfs = NULL;
359 }
360 
361 static void
363  mfib_source_t source)
364 
365 {
366  mfib_entry_src_t *msrc;
367  u32 index = ~0;
368 
369  msrc = mfib_entry_src_find(mfib_entry, source, &index);
370 
371  if (NULL != msrc)
372  {
373  mfib_entry_src_flush(msrc);
374  vec_del1(mfib_entry->mfe_srcs, index);
375  }
376 }
377 
378 u32
380  fib_node_type_t child_type,
381  fib_node_index_t child_index)
382 {
384  mfib_entry_index,
385  child_type,
386  child_index));
387 };
388 
389 void
391  u32 sibling_index)
392 {
394  mfib_entry_index,
395  sibling_index);
396 }
397 
398 static mfib_entry_t *
400  const mfib_prefix_t *prefix,
401  fib_node_index_t *mfib_entry_index)
402 {
403  mfib_entry_t *mfib_entry;
404 
405  pool_get_aligned(mfib_entry_pool, mfib_entry, CLIB_CACHE_LINE_BYTES);
406 
407  fib_node_init(&mfib_entry->mfe_node,
409 
410  /*
411  * Some of the members require non-default initialisation
412  * so we also init those that don't and thus save on the call to memset.
413  */
414  mfib_entry->mfe_flags = 0;
415  mfib_entry->mfe_fib_index = fib_index;
416  mfib_entry->mfe_prefix = *prefix;
417  mfib_entry->mfe_srcs = NULL;
418  mfib_entry->mfe_itfs = NULL;
419  mfib_entry->mfe_rpf_id = MFIB_RPF_ID_NONE;
420  mfib_entry->mfe_pl = FIB_NODE_INDEX_INVALID;
421 
422  dpo_reset(&mfib_entry->mfe_rep);
423 
424  *mfib_entry_index = mfib_entry_get_index(mfib_entry);
425 
426  MFIB_ENTRY_DBG(mfib_entry, "alloc");
427 
428  return (mfib_entry);
429 }
430 
431 static inline mfib_path_ext_t *
433  fib_node_index_t path_index)
434 {
435  uword *p;
436 
437  p = hash_get(exts, path_index);
438 
439  if (NULL != p)
440  {
441  return (mfib_entry_path_ext_get(p[0]));
442  }
443 
444  return (NULL);
445 }
446 
447 static mfib_path_ext_t*
449  fib_node_index_t path_index,
450  mfib_itf_flags_t mfi_flags)
451 {
452  mfib_path_ext_t *path_ext;
453 
454  pool_get(mfib_path_ext_pool, path_ext);
455 
456  path_ext->mfpe_flags = mfi_flags;
457  path_ext->mfpe_path = path_index;
458 
459  hash_set(msrc->mfes_exts, path_index,
460  path_ext - mfib_path_ext_pool);
461 
462  return (path_ext);
463 }
464 
465 static void
467  fib_node_index_t path_index)
468 {
469  mfib_path_ext_t *path_ext;
470 
471  path_ext = mfib_entry_path_ext_find(msrc->mfes_exts, path_index);
472 
473  hash_unset(msrc->mfes_exts, path_index);
474  pool_put(mfib_path_ext_pool, path_ext);
475 }
476 
478 {
483 
486  fib_node_index_t path_index,
487  void *arg)
488 {
491 
492  ctx = arg;
493 
494  /*
495  * if the path is not resolved, don't include it.
496  */
497  if (!fib_path_is_resolved(path_index))
498  {
500  }
501 
502  /*
503  * If the path is not forwarding to use it
504  */
505  mfib_path_ext_t *path_ext;
506 
507  path_ext = mfib_entry_path_ext_find(ctx->msrc->mfes_exts,
508  path_index);
509 
510  if (NULL != path_ext &&
511  !(path_ext->mfpe_flags & MFIB_ITF_FLAG_FORWARD))
512  {
514  }
515 
516  switch (ctx->fct)
517  {
520  /*
521  * EOS traffic with no label to stack, we need the IP Adj
522  */
523  vec_add2(ctx->next_hops, nh, 1);
524 
525  nh->path_index = path_index;
526  nh->path_weight = fib_path_get_weight(path_index);
527  fib_path_contribute_forwarding(path_index, ctx->fct, &nh->path_dpo);
528  break;
529 
537  ASSERT(0);
538  break;
539  }
540 
542 }
543 
544 static void
546  mfib_entry_src_t *msrc)
547 {
548  dpo_proto_t dp;
549 
550  dp = fib_proto_to_dpo(mfib_entry_get_proto(mfib_entry));
551 
552  /*
553  * unlink the enty from the previous path list.
554  */
555  if (FIB_NODE_INDEX_INVALID != mfib_entry->mfe_pl)
556  {
558  mfib_entry->mfe_sibling);
559  }
560 
561  if (NULL != msrc &&
563  {
565  .next_hops = NULL,
566  .fct = mfib_entry_get_default_chain_type(mfib_entry),
567  .msrc = msrc,
568  };
569 
572  &ctx);
573 
574  if (!(MFIB_ENTRY_FLAG_EXCLUSIVE & mfib_entry->mfe_flags))
575  {
576  if (NULL == ctx.next_hops)
577  {
578  /*
579  * no next-hops, stack directly on the drop
580  */
582  &mfib_entry->mfe_rep,
583  drop_dpo_get(dp));
584  }
585  else
586  {
587  /*
588  * each path contirbutes a next-hop. form a replicate
589  * from those choices.
590  */
591  if (!dpo_id_is_valid(&mfib_entry->mfe_rep) ||
592  dpo_is_drop(&mfib_entry->mfe_rep))
593  {
594  dpo_id_t tmp_dpo = DPO_INVALID;
595 
596  dpo_set(&tmp_dpo,
597  DPO_REPLICATE, dp,
598  replicate_create(0, dp));
599 
601  &mfib_entry->mfe_rep,
602  &tmp_dpo);
603 
604  dpo_reset(&tmp_dpo);
605  }
606  replicate_multipath_update(&mfib_entry->mfe_rep,
607  ctx.next_hops);
608  }
609  }
610  else
611  {
612  /*
613  * for exclusive routes the source provided a replicate DPO
614  * we we stashed inthe special path list with one path
615  * so we can stack directly on that.
616  */
617  ASSERT(1 == vec_len(ctx.next_hops));
618 
620  &mfib_entry->mfe_rep,
621  &ctx.next_hops[0].path_dpo);
622  dpo_reset(&ctx.next_hops[0].path_dpo);
623  vec_free(ctx.next_hops);
624  }
625 
626  /*
627  * link the entry to the path-list.
628  * The entry needs to be a child so that we receive the back-walk
629  * updates to recalculate forwarding.
630  */
631  mfib_entry->mfe_pl = msrc->mfes_pl;
632  mfib_entry->mfe_sibling =
633  fib_path_list_child_add(mfib_entry->mfe_pl,
635  mfib_entry_get_index(mfib_entry));
636  }
637  else
638  {
640  &mfib_entry->mfe_rep,
641  drop_dpo_get(dp));
642  }
643 }
644 
645 static fib_node_index_t
647  const fib_route_path_t *rpath)
648 {
649  fib_node_index_t path_index;
650  fib_route_path_t *rpaths;
651 
653 
654  /*
655  * path-lists require a vector of paths
656  */
657  rpaths = NULL;
658  vec_add1(rpaths, rpath[0]);
659 
660  if (FIB_NODE_INDEX_INVALID == msrc->mfes_pl)
661  {
662  /* A non-shared path-list */
664  NULL);
666  }
667 
668  path_index = fib_path_list_path_add(msrc->mfes_pl, rpaths);
669 
670  vec_free(rpaths);
671 
672  return (path_index);
673 }
674 
675 static fib_node_index_t
677  const fib_route_path_t *rpath)
678 {
679  fib_node_index_t path_index;
680  fib_route_path_t *rpaths;
681 
683 
684  /*
685  * path-lists require a vector of paths
686  */
687  rpaths = NULL;
688  vec_add1(rpaths, rpath[0]);
689 
690  path_index = fib_path_list_path_remove(msrc->mfes_pl, rpaths);
691 
692  vec_free(rpaths);
693 
694  return (path_index);
695 }
696 
697 static void
699 {
700  mfib_entry_src_t *bsrc;
701 
702  /*
703  * copy the forwarding data from the bast source
704  */
705  bsrc = mfib_entry_get_best_src(mfib_entry);
706 
707  if (NULL != bsrc)
708  {
709  mfib_entry->mfe_flags = bsrc->mfes_flags;
710  mfib_entry->mfe_itfs = bsrc->mfes_itfs;
711  mfib_entry->mfe_rpf_id = bsrc->mfes_rpf_id;
712  }
713 
714  mfib_entry_stack(mfib_entry, bsrc);
715 }
716 
717 
720  mfib_source_t source,
721  const mfib_prefix_t *prefix,
722  fib_rpf_id_t rpf_id,
723  mfib_entry_flags_t entry_flags)
724 {
725  fib_node_index_t mfib_entry_index;
726  mfib_entry_t *mfib_entry;
727  mfib_entry_src_t *msrc;
728 
729  mfib_entry = mfib_entry_alloc(fib_index, prefix,
730  &mfib_entry_index);
731  msrc = mfib_entry_src_find_or_create(mfib_entry, source);
732  msrc->mfes_flags = entry_flags;
733  msrc->mfes_rpf_id = rpf_id;
734 
736 
737  return (mfib_entry_index);
738 }
739 
740 static int
742 {
743  return (0 == vec_len(mfib_entry->mfe_srcs));
744 }
745 
746 static int
748 {
749  return ((MFIB_ENTRY_FLAG_NONE == msrc->mfes_flags &&
750  0 == fib_path_list_get_n_paths(msrc->mfes_pl)));
751 }
752 
753 int
755  mfib_source_t source,
756  mfib_entry_flags_t entry_flags,
757  fib_rpf_id_t rpf_id,
758  index_t repi)
759 {
760  mfib_entry_t *mfib_entry;
761  mfib_entry_src_t *msrc;
762 
763  mfib_entry = mfib_entry_get(mfib_entry_index);
764  msrc = mfib_entry_src_find_or_create(mfib_entry, source);
765  msrc->mfes_flags = entry_flags;
766  msrc->mfes_rpf_id = rpf_id;
767 
768  if (INDEX_INVALID != repi)
769  {
770  /*
771  * The source is providing its own replicate DPO.
772  * Create a sepcial path-list to manage it, that way
773  * this entry and the source are equivalent to a normal
774  * entry
775  */
776  fib_node_index_t old_pl_index;
777  dpo_proto_t dp;
778  dpo_id_t dpo = DPO_INVALID;
779 
780  dp = fib_proto_to_dpo(mfib_entry_get_proto(mfib_entry));
781  old_pl_index = msrc->mfes_pl;
782 
783  dpo_set(&dpo, DPO_REPLICATE, dp, repi);
784 
785  msrc->mfes_pl =
788  &dpo);
789 
790  dpo_reset(&dpo);
792  fib_path_list_unlock(old_pl_index);
793  }
794 
796  {
797  /*
798  * this source has no interfaces and no flags.
799  * it has nothing left to give - remove it
800  */
801  mfib_entry_src_remove(mfib_entry, source);
802  }
803 
805 
806  return (mfib_entry_ok_for_delete(mfib_entry));
807 }
808 
809 static void
811  u32 sw_if_index,
812  index_t mi)
813 {
814  hash_set(msrc->mfes_itfs, sw_if_index, mi);
815 }
816 
817 static void
819  u32 sw_if_index)
820 {
821  mfib_itf_t *mfi;
822 
823  mfi = mfib_entry_itf_find(msrc->mfes_itfs, sw_if_index);
824 
825  mfib_itf_delete(mfi);
826 
827  hash_unset(msrc->mfes_itfs, sw_if_index);
828 }
829 
830 void
832  mfib_source_t source,
833  const fib_route_path_t *rpath,
834  mfib_itf_flags_t itf_flags)
835 {
836  fib_node_index_t path_index;
837  mfib_path_ext_t *path_ext;
838  mfib_itf_flags_t old, new;
839  mfib_entry_t *mfib_entry;
840  mfib_entry_src_t *msrc;
841 
842  mfib_entry = mfib_entry_get(mfib_entry_index);
843  ASSERT(NULL != mfib_entry);
844  msrc = mfib_entry_src_find_or_create(mfib_entry, source);
845 
846  /*
847  * add the path to the path-list. If it's a duplicate we'll get
848  * back the original path.
849  */
850  path_index = mfib_entry_src_path_add(msrc, rpath);
851 
852  /*
853  * find the path extension for that path
854  */
855  path_ext = mfib_entry_path_ext_find(msrc->mfes_exts, path_index);
856 
857  if (NULL == path_ext)
858  {
859  old = MFIB_ITF_FLAG_NONE;
860  path_ext = mfib_path_ext_add(msrc, path_index, itf_flags);
861  }
862  else
863  {
864  old = path_ext->mfpe_flags;
865  path_ext->mfpe_flags = itf_flags;
866  }
867 
868  /*
869  * Has the path changed its contribution to the input interface set.
870  * Which only paths with interfaces can do...
871  */
872  if (~0 != rpath[0].frp_sw_if_index)
873  {
874  mfib_itf_t *mfib_itf;
875 
876  new = itf_flags;
877 
878  if (old != new)
879  {
880  if (MFIB_ITF_FLAG_NONE == new)
881  {
882  /*
883  * no more interface flags on this path, remove
884  * from the data-plane set
885  */
886  mfib_entry_itf_remove(msrc, rpath[0].frp_sw_if_index);
887  }
888  else if (MFIB_ITF_FLAG_NONE == old)
889  {
890  /*
891  * This interface is now contributing
892  */
893  mfib_entry_itf_add(msrc,
894  rpath[0].frp_sw_if_index,
895  mfib_itf_create(rpath[0].frp_sw_if_index,
896  itf_flags));
897  }
898  else
899  {
900  /*
901  * change of flag contributions
902  */
903  mfib_itf = mfib_entry_itf_find(msrc->mfes_itfs,
904  rpath[0].frp_sw_if_index);
905  /* Seen by packets inflight */
906  mfib_itf->mfi_flags = new;
907  }
908  }
909  }
910 
912 }
913 
914 /*
915  * mfib_entry_path_remove
916  *
917  * remove a path from the entry.
918  * return the mfib_entry's index if it is still present, INVALID otherwise.
919  */
920 int
922  mfib_source_t source,
923  const fib_route_path_t *rpath)
924 {
925  fib_node_index_t path_index;
926  mfib_entry_t *mfib_entry;
927  mfib_entry_src_t *msrc;
928 
929  mfib_entry = mfib_entry_get(mfib_entry_index);
930  ASSERT(NULL != mfib_entry);
931  msrc = mfib_entry_src_find(mfib_entry, source, NULL);
932 
933  if (NULL == msrc)
934  {
935  /*
936  * there are no paths left for this source
937  */
938  return (mfib_entry_ok_for_delete(mfib_entry));
939  }
940 
941  /*
942  * remove the path from the path-list. If it's not there we'll get
943  * back invalid
944  */
945  path_index = mfib_entry_src_path_remove(msrc, rpath);
946 
947  if (FIB_NODE_INDEX_INVALID != path_index)
948  {
949  /*
950  * don't need the extension, nor the interface anymore
951  */
952  mfib_path_ext_remove(msrc, path_index);
953  if (~0 != rpath[0].frp_sw_if_index)
954  {
955  mfib_entry_itf_remove(msrc, rpath[0].frp_sw_if_index);
956  }
957  }
958 
960  {
961  /*
962  * this source has no interfaces and no flags.
963  * it has nothing left to give - remove it
964  */
965  mfib_entry_src_remove(mfib_entry, source);
966  }
967 
969 
970  return (mfib_entry_ok_for_delete(mfib_entry));
971 }
972 
973 /**
974  * mfib_entry_delete
975  *
976  * The source is withdrawing all the paths it provided
977  */
978 int
980  mfib_source_t source)
981 {
982  mfib_entry_t *mfib_entry;
983 
984  mfib_entry = mfib_entry_get(mfib_entry_index);
985  mfib_entry_src_remove(mfib_entry, source);
986 
988 
989  return (mfib_entry_ok_for_delete(mfib_entry));
990 }
991 
992 static int
994  ip4_address_t * a2)
995 {
996  /*
997  * IP addresses are unsiged ints. the return value here needs to be signed
998  * a simple subtraction won't cut it.
999  * If the addresses are the same, the sort order is undefiend, so phoey.
1000  */
1001  return ((clib_net_to_host_u32(a1->data_u32) >
1002  clib_net_to_host_u32(a2->data_u32) ) ?
1003  1 : -1);
1004 }
1005 
1006 static int
1008  ip6_address_t * a2)
1009 {
1010  int i;
1011  for (i = 0; i < ARRAY_LEN (a1->as_u16); i++)
1012  {
1013  int cmp = (clib_net_to_host_u16 (a1->as_u16[i]) -
1014  clib_net_to_host_u16 (a2->as_u16[i]));
1015  if (cmp != 0)
1016  return cmp;
1017  }
1018  return 0;
1019 }
1020 
1021 static int
1023  fib_node_index_t mfib_entry_index2)
1024 {
1025  mfib_entry_t *mfib_entry1, *mfib_entry2;
1026  int cmp = 0;
1027 
1028  mfib_entry1 = mfib_entry_get(mfib_entry_index1);
1029  mfib_entry2 = mfib_entry_get(mfib_entry_index2);
1030 
1031  switch (mfib_entry1->mfe_prefix.fp_proto)
1032  {
1033  case FIB_PROTOCOL_IP4:
1034  cmp = fib_ip4_address_compare(&mfib_entry1->mfe_prefix.fp_grp_addr.ip4,
1035  &mfib_entry2->mfe_prefix.fp_grp_addr.ip4);
1036 
1037  if (0 == cmp)
1038  {
1039  cmp = fib_ip4_address_compare(&mfib_entry1->mfe_prefix.fp_src_addr.ip4,
1040  &mfib_entry2->mfe_prefix.fp_src_addr.ip4);
1041  }
1042  break;
1043  case FIB_PROTOCOL_IP6:
1044  cmp = fib_ip6_address_compare(&mfib_entry1->mfe_prefix.fp_grp_addr.ip6,
1045  &mfib_entry2->mfe_prefix.fp_grp_addr.ip6);
1046 
1047  if (0 == cmp)
1048  {
1049  cmp = fib_ip6_address_compare(&mfib_entry1->mfe_prefix.fp_src_addr.ip6,
1050  &mfib_entry2->mfe_prefix.fp_src_addr.ip6);
1051  }
1052  break;
1053  case FIB_PROTOCOL_MPLS:
1054  ASSERT(0);
1055  cmp = 0;
1056  break;
1057  }
1058 
1059  if (0 == cmp) {
1060  cmp = (mfib_entry1->mfe_prefix.fp_len - mfib_entry2->mfe_prefix.fp_len);
1061  }
1062  return (cmp);
1063 }
1064 
1065 int
1066 mfib_entry_cmp_for_sort (void *i1, void *i2)
1067 {
1068  fib_node_index_t *mfib_entry_index1 = i1, *mfib_entry_index2 = i2;
1069 
1070  return (mfib_entry_cmp(*mfib_entry_index1,
1071  *mfib_entry_index2));
1072 }
1073 
1074 static void
1076 {
1077  mfib_entry_t *mfib_entry;
1078  mfib_entry_src_t *msrc;
1079 
1080  mfib_entry = mfib_entry_from_fib_node(node);
1081 
1082  dpo_reset(&mfib_entry->mfe_rep);
1083 
1084  MFIB_ENTRY_DBG(mfib_entry, "last-lock");
1085 
1086  vec_foreach(msrc, mfib_entry->mfe_srcs)
1087  {
1088  mfib_entry_src_flush(msrc);
1089  }
1090 
1091  vec_free(mfib_entry->mfe_srcs);
1092 
1093  fib_node_deinit(&mfib_entry->mfe_node);
1094  pool_put(mfib_entry_pool, mfib_entry);
1095 }
1096 
1097 /*
1098  * mfib_entry_back_walk_notify
1099  *
1100  * A back walk has reach this entry.
1101  */
1105 {
1107 
1108  return (FIB_NODE_BACK_WALK_CONTINUE);
1109 }
1110 
1111 static void
1113 {
1114  fib_show_memory_usage("multicast-Entry",
1115  pool_elts(mfib_entry_pool),
1116  pool_len(mfib_entry_pool),
1117  sizeof(mfib_entry_t));
1118 }
1119 
1120 /*
1121  * The MFIB entry's graph node virtual function table
1122  */
1123 static const fib_node_vft_t mfib_entry_vft = {
1125  .fnv_last_lock = mfib_entry_last_lock_gone,
1126  .fnv_back_walk = mfib_entry_back_walk_notify,
1127  .fnv_mem_show = mfib_entry_show_memory,
1128 };
1129 
1130 void
1132 {
1133  mfib_entry_t *mfib_entry;
1134 
1135  mfib_entry = mfib_entry_get(mfib_entry_index);
1136 
1137  fib_node_lock(&mfib_entry->mfe_node);
1138 }
1139 
1140 void
1142 {
1143  mfib_entry_t *mfib_entry;
1144 
1145  mfib_entry = mfib_entry_get(mfib_entry_index);
1146 
1147  fib_node_unlock(&mfib_entry->mfe_node);
1148 }
1149 
1150 static void
1152 {
1153 }
1154 static void
1156 {
1157 }
1158 
1159 const static dpo_vft_t mfib_entry_dpo_vft = {
1161  .dv_unlock = mfib_entry_dpo_unlock,
1162  .dv_format = format_mfib_entry_dpo,
1163  .dv_mem_show = mfib_entry_show_memory,
1164 };
1165 
1166 const static char* const mfib_entry_ip4_nodes[] =
1167 {
1168  "ip4-mfib-forward-rpf",
1169  NULL,
1170 };
1171 const static char* const mfib_entry_ip6_nodes[] =
1172 {
1173  "ip6-mfib-forward-rpf",
1174  NULL,
1175 };
1176 
1177 const static char* const * const mfib_entry_nodes[DPO_PROTO_NUM] =
1178 {
1181 };
1182 
1183 void
1185 {
1187  dpo_register(DPO_MFIB_ENTRY, &mfib_entry_dpo_vft, mfib_entry_nodes);
1188 }
1189 
1190 void
1192  fib_route_path_encode_t **api_rpaths)
1193 {
1194  mfib_entry_t *mfib_entry;
1195  mfib_entry_src_t *bsrc;
1196 
1197  mfib_entry = mfib_entry_get(mfib_entry_index);
1198  bsrc = mfib_entry_get_best_src(mfib_entry);
1199 
1200  if (FIB_NODE_INDEX_INVALID != bsrc->mfes_pl)
1201  {
1204  api_rpaths);
1205  }
1206 }
1207 
1208 
1209 void
1211  mfib_prefix_t *pfx)
1212 {
1213  mfib_entry_t *mfib_entry;
1214 
1215  mfib_entry = mfib_entry_get(mfib_entry_index);
1216  *pfx = mfib_entry->mfe_prefix;
1217 }
1218 
1219 u32
1221 {
1222  mfib_entry_t *mfib_entry;
1223 
1224  mfib_entry = mfib_entry_get(mfib_entry_index);
1225 
1226  return (mfib_entry->mfe_fib_index);
1227 }
1228 
1229 const dpo_id_t*
1231 {
1232  mfib_entry_t *mfib_entry;
1233 
1234  mfib_entry = mfib_entry_get(mfib_entry_index);
1235 
1236  return (&mfib_entry->mfe_rep);
1237 }
1238 
1239 void
1242  dpo_id_t *dpo)
1243 {
1244  /*
1245  * An IP mFIB entry can only provide a forwarding chain that
1246  * is the same IP proto as the prefix.
1247  * No use-cases (i know of) for other combinations.
1248  */
1249  mfib_entry_t *mfib_entry;
1250  dpo_proto_t dp;
1251 
1252  mfib_entry = mfib_entry_get(mfib_entry_index);
1253 
1254  dp = fib_proto_to_dpo(mfib_entry->mfe_prefix.fp_proto);
1255 
1256  if (type == fib_forw_chain_type_from_dpo_proto(dp))
1257  {
1258  dpo_copy(dpo, &mfib_entry->mfe_rep);
1259  }
1260  else
1261  {
1262  dpo_copy(dpo, drop_dpo_get(dp));
1263  }
1264 }
1265 
1266 u32
1268 {
1269  return (pool_elts(mfib_entry_pool));
1270 }
1271 
1272 static clib_error_t *
1274  unformat_input_t * input,
1275  vlib_cli_command_t * cmd)
1276 {
1277  fib_node_index_t fei;
1278 
1279  if (unformat (input, "%d", &fei))
1280  {
1281  /*
1282  * show one in detail
1283  */
1284  if (!pool_is_free_index(mfib_entry_pool, fei))
1285  {
1286  vlib_cli_output (vm, "%d@%U",
1287  fei,
1288  format_mfib_entry, fei,
1290  }
1291  else
1292  {
1293  vlib_cli_output (vm, "entry %d invalid", fei);
1294  }
1295  }
1296  else
1297  {
1298  /*
1299  * show all
1300  */
1301  vlib_cli_output (vm, "FIB Entries:");
1302  pool_foreach_index(fei, mfib_entry_pool,
1303  ({
1304  vlib_cli_output (vm, "%d@%U",
1305  fei,
1306  format_mfib_entry, fei,
1308  }));
1309  }
1310 
1311  return (NULL);
1312 }
1313 
1314 /*?
1315  * This commnad displays an entry, or all entries, in the mfib tables indexed by their unique
1316  * numerical indentifier.
1317  ?*/
1318 VLIB_CLI_COMMAND (show_mfib_entry, static) = {
1319  .path = "show mfib entry",
1320  .function = show_mfib_entry_command,
1321  .short_help = "show mfib entry",
1322 };
int fib_path_is_resolved(fib_node_index_t path_index)
Definition: fib_path.c:2528
dpo_lock_fn_t dv_lock
A reference counting lock function.
Definition: dpo.h:382
Contribute an object that is to be used to forward BIER packets.
Definition: fib_types.h:101
#define MFIB_ENTRY_FORMAT_DETAIL
Definition: mfib_entry.h:88
static void mfib_entry_recalculate_forwarding(mfib_entry_t *mfib_entry)
Definition: mfib_entry.c:698
static const char *const mfib_entry_ip4_nodes[]
Definition: mfib_entry.c:1166
Contribute an object that is to be used to forward IP6 packets.
Definition: fib_types.h:116
ip46_address_t fp_src_addr
Definition: mfib_types.h:47
Contribute an object that is to be used to forward IP6 packets.
Definition: fib_types.h:92
#define hash_set(h, key, value)
Definition: hash.h:254
sll srl srl sll sra u16x4 i
Definition: vector_sse2.h:337
static mfib_entry_src_t * mfib_entry_src_find_or_create(mfib_entry_t *mfib_entry, mfib_source_t source)
Definition: mfib_entry.c:300
fib_node_index_t path_index
The index of the FIB path.
Definition: load_balance.h:71
#define CLIB_UNUSED(x)
Definition: clib.h:79
A virtual function table regisitered for a DPO type.
Definition: dpo.h:377
A representation of a fib path for fib_path_encode to convey the information to the caller...
Definition: fib_types.h:486
fib_forward_chain_type_t fct
Definition: mfib_entry.c:480
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:2258
static const char *const *const mfib_entry_nodes[DPO_PROTO_NUM]
Definition: mfib_entry.c:1177
u32 mfib_entry_pool_size(void)
Definition: mfib_entry.c:1267
void fib_path_list_child_remove(fib_node_index_t path_list_index, u32 si)
int mfib_entry_delete(fib_node_index_t mfib_entry_index, mfib_source_t source)
mfib_entry_delete
Definition: mfib_entry.c:979
enum mfib_entry_flags_t_ mfib_entry_flags_t
#define hash_unset(h, key)
Definition: hash.h:260
fib_node_index_t mfib_entry_create(u32 fib_index, mfib_source_t source, const mfib_prefix_t *prefix, fib_rpf_id_t rpf_id, mfib_entry_flags_t entry_flags)
Definition: mfib_entry.c:719
A representation of a path as described by a route producer.
Definition: fib_types.h:377
dpo_id_t path_dpo
ID of the Data-path object.
Definition: load_balance.h:66
void fib_node_init(fib_node_t *node, fib_node_type_t type)
Definition: fib_node.c:185
static int dpo_id_is_valid(const dpo_id_t *dpoi)
Return true if the DPO object is valid, i.e.
Definition: dpo.h:205
void mfib_entry_unlock(fib_node_index_t mfib_entry_index)
Definition: mfib_entry.c:1141
struct mfib_entry_src_t_ * mfe_srcs
A vector of sources contributing forwarding.
Definition: mfib_entry.h:49
#define NULL
Definition: clib.h:55
An entry in a FIB table.
Definition: mfib_entry.h:31
u32 mfe_sibling
The sibling index on the path-list.
Definition: mfib_entry.h:59
enum fib_node_back_walk_rc_t_ fib_node_back_walk_rc_t
Return code from a back walk function.
fib_node_index_t fib_path_list_create_special(dpo_proto_t nh_proto, fib_path_list_flags_t flags, const dpo_id_t *dpo)
#define MFIB_SOURCE_NAMES
Definition: mfib_types.h:176
void dpo_copy(dpo_id_t *dst, const dpo_id_t *src)
atomic copy a data-plane object.
Definition: dpo.c:258
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
static void mfib_entry_dpo_unlock(dpo_id_t *dpo)
Definition: mfib_entry.c:1155
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:518
static fib_node_t * mfib_entry_get_node(fib_node_index_t index)
Definition: mfib_entry.c:114
static void mfib_entry_itf_remove(mfib_entry_src_t *msrc, u32 sw_if_index)
Definition: mfib_entry.c:818
#define vec_add2(V, P, N)
Add N elements to end of vector V, return pointer to new elements in P.
Definition: vec.h:557
static fib_node_index_t mfib_entry_get_index(const mfib_entry_t *mfe)
Definition: mfib_entry.h:158
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:88
void fib_node_deinit(fib_node_t *node)
Definition: fib_node.c:197
u32 mfib_entry_child_add(fib_node_index_t mfib_entry_index, fib_node_type_t child_type, fib_node_index_t child_index)
Definition: mfib_entry.c:379
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
static mfib_path_ext_t * mfib_entry_path_ext_find(mfib_path_ext_t *exts, fib_node_index_t path_index)
Definition: mfib_entry.c:432
static const char *const mfib_entry_ip6_nodes[]
Definition: mfib_entry.c:1171
#define MFIB_ENTRY_FORMAT_BRIEF
Definition: mfib_entry.h:87
mfib_itf_t * mfes_itfs
The hash table of all interfaces.
Definition: mfib_entry.c:95
#define pool_get(P, E)
Allocate an object E from a pool P (unspecified alignment).
Definition: pool.h:225
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)
#define pool_len(p)
Number of elements in pool vector.
Definition: pool.h:140
fib_forward_chain_type_t mfib_entry_get_default_chain_type(const mfib_entry_t *mfib_entry)
Definition: mfib_entry.c:126
enum fib_protocol_t_ fib_protocol_t
Protocol Type.
static mfib_entry_t * mfib_entry_from_fib_node(fib_node_t *node)
Definition: mfib_entry.c:239
u32 fib_node_child_add(fib_node_type_t parent_type, fib_node_index_t parent_index, fib_node_type_t type, fib_node_index_t index)
Definition: fib_node.c:98
void fib_node_register_type(fib_node_type_t type, const fib_node_vft_t *vft)
fib_node_register_type
Definition: fib_node.c:60
const dpo_id_t * drop_dpo_get(dpo_proto_t proto)
Definition: drop_dpo.c:25
u8 * format_mfib_entry_flags(u8 *s, va_list *args)
Definition: mfib_types.c:85
enum mfib_source_t_ mfib_source_t
Possible [control plane] sources of MFIB entries.
static mfib_entry_t * mfib_entry_alloc(u32 fib_index, const mfib_prefix_t *prefix, fib_node_index_t *mfib_entry_index)
Definition: mfib_entry.c:399
void dpo_register(dpo_type_t type, const dpo_vft_t *vft, const char *const *const *nodes)
For a given DPO type Register:
Definition: dpo.c:306
u32 frp_sw_if_index
The interface.
Definition: fib_types.h:412
#define MFIB_RPF_ID_NONE
Definition: fib_types.h:358
The source of an MFIB entry.
Definition: mfib_entry.c:63
mfib_source_t mfes_src
Which source this is.
Definition: mfib_entry.c:68
#define hash_foreach(key_var, value_var, h, body)
Definition: hash.h:441
load_balance_path_t * next_hops
Definition: mfib_entry.c:479
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
static fib_protocol_t mfib_entry_get_proto(const mfib_entry_t *mfib_entry)
Definition: mfib_entry.c:120
mfib_prefix_t mfe_prefix
The prefix of the route.
Definition: mfib_entry.h:40
void fib_show_memory_usage(const char *name, u32 in_use_elts, u32 allocd_elts, size_t size_elt)
Show the memory usage for a type.
Definition: fib_node.c:220
void mfib_entry_module_init(void)
Definition: mfib_entry.c:1184
struct mfib_entry_collect_forwarding_ctx_t_ mfib_entry_collect_forwarding_ctx_t
Contribute an object that is to be used to forward Ethernet packets.
Definition: fib_types.h:120
enum dpo_proto_t_ dpo_proto_t
Data path protocol.
u16 fib_path_get_weight(fib_node_index_t path_index)
Definition: fib_path.c:2094
index_t mfib_itf_create(u32 sw_if_index, mfib_itf_flags_t mfi_flags)
Definition: mfib_itf.c:24
u32 mfib_entry_get_fib_index(fib_node_index_t mfib_entry_index)
Definition: mfib_entry.c:1220
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:166
Contribute an object that is to be used to forward end-of-stack MPLS packets.
Definition: fib_types.h:108
int mfib_entry_update(fib_node_index_t mfib_entry_index, mfib_source_t source, mfib_entry_flags_t entry_flags, fib_rpf_id_t rpf_id, index_t repi)
Definition: mfib_entry.c:754
#define hash_get(h, key)
Definition: hash.h:248
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:459
fib_node_index_t fib_path_list_create(fib_path_list_flags_t flags, const fib_route_path_t *rpaths)
dpo_id_t mfe_rep
The DPO used for forwarding; replicate, drop, etc.
Definition: mfib_entry.h:69
static fib_path_list_walk_rc_t mfib_entry_src_collect_forwarding(fib_node_index_t pl_index, fib_node_index_t path_index, void *arg)
Definition: mfib_entry.c:485
static void mfib_entry_src_flush(mfib_entry_src_t *msrc)
Definition: mfib_entry.c:347
void fib_node_lock(fib_node_t *node)
Definition: fib_node.c:203
static int fib_ip6_address_compare(ip6_address_t *a1, ip6_address_t *a2)
Definition: mfib_entry.c:1007
struct _unformat_input_t unformat_input_t
static fib_node_index_t mfib_entry_src_path_add(mfib_entry_src_t *msrc, const fib_route_path_t *rpath)
Definition: mfib_entry.c:646
int mfib_entry_is_sourced(fib_node_index_t mfib_entry_index, mfib_source_t source)
Definition: mfib_entry.c:336
#define hash_free(h)
Definition: hash.h:309
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:271
fib_node_t mfe_node
Base class.
Definition: mfib_entry.h:36
int mfib_entry_cmp_for_sort(void *i1, void *i2)
Definition: mfib_entry.c:1066
void mfib_entry_path_update(fib_node_index_t mfib_entry_index, mfib_source_t source, const fib_route_path_t *rpath, mfib_itf_flags_t itf_flags)
Definition: mfib_entry.c:831
mfib_entry_t * mfib_entry_pool
Definition: mfib_entry.c:111
#define vec_del1(v, i)
Delete the element at index I.
Definition: vec.h:801
void fib_path_list_lock(fib_node_index_t path_list_index)
static mfib_path_ext_t * mfib_entry_path_ext_get(index_t mi)
Definition: mfib_entry.c:153
fib_rpf_id_t mfes_rpf_id
RPF-ID.
Definition: mfib_entry.c:83
fib_node_type_t fn_type
The node&#39;s type.
Definition: fib_node.h:290
static void mfib_entry_dpo_lock(dpo_id_t *dpo)
Definition: mfib_entry.c:1151
An node in the FIB graph.
Definition: fib_node.h:286
void fib_node_unlock(fib_node_t *node)
Definition: fib_node.c:209
void mfib_entry_lock(fib_node_index_t mfib_entry_index)
Definition: mfib_entry.c:1131
u32 mfe_fib_index
The index of the FIB table this entry is in.
Definition: mfib_entry.h:44
static mfib_entry_t * mfib_entry_get(fib_node_index_t index)
Definition: mfib_entry.h:153
#define pool_get_aligned(P, E, A)
Allocate an object E from a pool P (general version).
Definition: pool.h:188
static mfib_path_ext_t * mfib_path_ext_add(mfib_entry_src_t *msrc, fib_node_index_t path_index, mfib_itf_flags_t mfi_flags)
Definition: mfib_entry.c:448
void replicate_multipath_update(const dpo_id_t *dpo, load_balance_path_t *next_hops)
fib_node_list_t fn_children
The node&#39;s VFT.
Definition: fib_node.h:306
static u8 * format_mfib_entry_dpo(u8 *s, va_list *args)
Definition: mfib_entry.c:142
vlib_main_t * vm
Definition: buffer.c:283
static mfib_entry_src_t * mfib_entry_src_find(const mfib_entry_t *mfib_entry, mfib_source_t source, u32 *index)
Definition: mfib_entry.c:271
Contribute an object that is to be used to forward NSH packets.
Definition: fib_types.h:126
u8 * format_mfib_entry(u8 *s, va_list *args)
Definition: mfib_entry.c:171
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:336
static mfib_itf_t * mfib_entry_itf_find(mfib_itf_t *itfs, u32 sw_if_index)
Definition: mfib_entry.h:165
mfib_itf_flags_t mfi_flags
Falags on the entry.
Definition: mfib_itf.h:30
fib_node_get_t fnv_get
Definition: fib_node.h:274
u32 fib_path_list_get_n_paths(fib_node_index_t path_list_index)
fib_node_index_t mfes_pl
The path-list of forwarding interfaces.
Definition: mfib_entry.c:78
mfib_itf_t * mfe_itfs
A hash table of interfaces.
Definition: mfib_entry.h:84
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:29
mfib_entry_flags_t mfe_flags
Route flags.
Definition: mfib_entry.h:74
#define pool_is_free_index(P, I)
Use free bitmap to query whether given index is free.
Definition: pool.h:268
#define ARRAY_LEN(x)
Definition: clib.h:59
mfib_path_ext_t * mfes_exts
Hash table of path extensions.
Definition: mfib_entry.c:88
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:182
void fib_path_list_unlock(fib_node_index_t path_list_index)
index_t replicate_create(u32 n_buckets, dpo_proto_t rep_proto)
static void mfib_entry_itf_add(mfib_entry_src_t *msrc, u32 sw_if_index, index_t mi)
Definition: mfib_entry.c:810
void mfib_entry_contribute_forwarding(fib_node_index_t mfib_entry_index, fib_forward_chain_type_t type, dpo_id_t *dpo)
Definition: mfib_entry.c:1240
Aggregrate type for a prefix.
Definition: mfib_types.h:24
Context passed between object during a back walk.
Definition: fib_node.h:199
u32 fib_rpf_id_t
An RPF-ID is numerical value that is used RPF validate.
Definition: fib_types.h:356
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:154
fib_node_index_t mfe_pl
The path-list of which this entry is a child.
Definition: mfib_entry.h:54
static void mfib_path_ext_remove(mfib_entry_src_t *msrc, fib_node_index_t path_index)
Definition: mfib_entry.c:466
MFIB extensions to each path.
Definition: mfib_entry.c:54
static void mfib_entry_last_lock_gone(fib_node_t *node)
Definition: mfib_entry.c:1075
void mfib_entry_get_prefix(fib_node_index_t mfib_entry_index, mfib_prefix_t *pfx)
Definition: mfib_entry.c:1210
#define ASSERT(truth)
unsigned int u32
Definition: types.h:88
static void mfib_entry_stack(mfib_entry_t *mfib_entry, mfib_entry_src_t *msrc)
Definition: mfib_entry.c:545
long ctx[MAX_CONNS]
Definition: main.c:122
fib_path_list_walk_rc_t fib_path_encode(fib_node_index_t path_list_index, fib_node_index_t path_index, void *ctx)
Definition: fib_path.c:2551
mfib_itf_flags_t mfpe_flags
Definition: mfib_entry.c:56
const dpo_id_t * mfib_entry_contribute_ip_forwarding(fib_node_index_t mfib_entry_index)
Definition: mfib_entry.c:1230
struct mfib_entry_src_t_ mfib_entry_src_t
The source of an MFIB entry.
An interface associated with a particular MFIB entry.
Definition: mfib_itf.h:25
static int mfib_entry_ok_for_delete(mfib_entry_t *mfib_entry)
Definition: mfib_entry.c:741
static u8 * format_mfib_entry_path_ext(u8 *s, va_list *args)
Definition: mfib_entry.c:159
enum fib_forward_chain_type_t_ fib_forward_chain_type_t
FIB output chain type.
u8 * format_fib_forw_chain_type(u8 *s, va_list *args)
Definition: fib_types.c:46
static int mfib_entry_cmp(fib_node_index_t mfib_entry_index1, fib_node_index_t mfib_entry_index2)
Definition: mfib_entry.c:1022
void fib_node_child_remove(fib_node_type_t parent_type, fib_node_index_t parent_index, fib_node_index_t sibling_index)
Definition: fib_node.c:123
dpo_proto_t fib_proto_to_dpo(fib_protocol_t fib_proto)
Definition: fib_types.c:211
fib_rpf_id_t mfe_rpf_id
RPF-ID used when the packets ingress not from an interface.
Definition: mfib_entry.h:79
u8 * format_dpo_id(u8 *s, va_list *args)
Format a DPO_id_t oject
Definition: dpo.c:146
u64 uword
Definition: types.h:112
static clib_error_t * show_mfib_entry_command(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: mfib_entry.c:1273
void mfib_entry_encode(fib_node_index_t mfib_entry_index, fib_route_path_encode_t **api_rpaths)
Definition: mfib_entry.c:1191
#define MFIB_ENTRY_DBG(_e, _fmt, _args...)
Debug macro.
Definition: mfib_entry.c:48
fib_protocol_t fp_proto
protocol type
Definition: mfib_types.h:33
#define DPO_PROTO_NUM
Definition: dpo.h:70
enum fib_path_list_walk_rc_t_ fib_path_list_walk_rc_t
return code to control pat-hlist walk
#define FIB_NODE_INDEX_INVALID
Definition: fib_types.h:30
fib_node_index_t mfpe_path
Definition: mfib_entry.c:57
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
unsigned char u8
Definition: types.h:56
u32 path_weight
weight for the path.
Definition: load_balance.h:76
u32 fn_locks
Number of dependents on this node.
Definition: fib_node.h:312
#define INDEX_INVALID
Invalid index - used when no index is known blazoned capitals INVALID speak volumes where ~0 does not...
Definition: dpo.h:47
static mfib_path_ext_t * mfib_path_ext_pool
Pool of path extensions.
Definition: mfib_entry.c:101
u8 * fib_path_list_format(fib_node_index_t path_list_index, u8 *s)
#define vec_sort_with_function(vec, f)
Sort a vector using the supplied element comparison function.
Definition: vec.h:956
static int fib_ip4_address_compare(ip4_address_t *a1, ip4_address_t *a2)
Definition: mfib_entry.c:993
u8 * format_mfib_itf_flags(u8 *s, va_list *args)
Definition: mfib_types.c:105
#define DPO_INVALID
An initialiser for DPOs declared on the stack.
Definition: dpo.h:193
One path from an [EU]CMP set that the client wants to add to a load-balance object.
Definition: load_balance.h:62
static mfib_entry_src_t * mfib_entry_get_best_src(const mfib_entry_t *mfib_entry)
Definition: mfib_entry.c:316
enum mfib_itf_flags_t_ mfib_itf_flags_t
Definition: mfib_entry.c:477
fib_node_index_t fib_path_list_path_add(fib_node_index_t path_list_index, const fib_route_path_t *rpaths)
static int mfib_entry_src_ok_for_delete(const mfib_entry_src_t *msrc)
Definition: mfib_entry.c:747
A FIB graph nodes virtual function table.
Definition: fib_node.h:273
static fib_node_index_t mfib_entry_src_path_remove(mfib_entry_src_t *msrc, const fib_route_path_t *rpath)
Definition: mfib_entry.c:676
static const char * mfib_source_names[]
String names for each source.
Definition: mfib_entry.c:106
static void mfib_entry_src_init(mfib_entry_t *mfib_entry, mfib_source_t source)
Definition: mfib_entry.c:255
mfib_entry_flags_t mfes_flags
Route flags.
Definition: mfib_entry.c:73
struct mfib_path_ext_t_ mfib_path_ext_t
MFIB extensions to each path.
enum fib_node_type_t_ fib_node_type_t
The types of nodes in a FIB graph.
static fib_node_back_walk_rc_t mfib_entry_back_walk_notify(fib_node_t *node, fib_node_back_walk_ctx_t *ctx)
Definition: mfib_entry.c:1103
int dpo_is_drop(const dpo_id_t *dpo)
The Drop DPO will drop all packets, no questions asked.
Definition: drop_dpo.c:33
void dpo_reset(dpo_id_t *dpo)
reset a DPO ID The DPO will be unlocked.
Definition: dpo.c:228
#define vec_foreach(var, vec)
Vector iterator.
void mfib_itf_delete(mfib_itf_t *mfi)
Definition: mfib_itf.c:40
static void mfib_entry_show_memory(void)
Definition: mfib_entry.c:1112
u16 as_u16[8]
Definition: ip6_packet.h:49
Contribute an object that is to be used to forward non-end-of-stack MPLS packets. ...
Definition: fib_types.h:97
static void mfib_entry_src_remove(mfib_entry_t *mfib_entry, mfib_source_t source)
Definition: mfib_entry.c:362
#define pool_foreach_index(i, v, body)
Iterate pool by index.
Definition: pool.h:480
#define MFIB_ENTRY_FORMAT_DETAIL2
Definition: mfib_entry.h:89
u16 fp_len
The mask length.
Definition: mfib_types.h:28
u8 * fib_node_children_format(fib_node_list_t list, u8 *s)
Definition: fib_node.c:176
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:67
void mfib_entry_child_remove(fib_node_index_t mfib_entry_index, u32 sibling_index)
Definition: mfib_entry.c:390
mfib_entry_src_t * msrc
Definition: mfib_entry.c:481
static int mfib_entry_src_cmp_for_sort(void *v1, void *v2)
Definition: mfib_entry.c:246
Contribute an object that is to be used to forward IP4 packets.
Definition: fib_types.h:112
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:680
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:261
u8 * format_mfib_prefix(u8 *s, va_list *args)
Definition: mfib_types.c:30
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972
ip46_address_t fp_grp_addr
The address type is not deriveable from the fp_addr member.
Definition: mfib_types.h:46
fib_node_index_t fib_path_list_path_remove(fib_node_index_t path_list_index, const fib_route_path_t *rpaths)
int mfib_entry_path_remove(fib_node_index_t mfib_entry_index, mfib_source_t source, const fib_route_path_t *rpath)
Definition: mfib_entry.c:921
void dpo_stack(dpo_type_t child_type, dpo_proto_t child_proto, dpo_id_t *dpo, const dpo_id_t *parent)
Stack one DPO object on another, and thus establish a child-parent relationship.
Definition: dpo.c:470
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:128