2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vlib/vlib.h>
18 #include <vnet/mfib/mfib_entry.h>
19 #include <vnet/fib/fib_path_list.h>
21 #include <vnet/dpo/drop_dpo.h>
22 #include <vnet/dpo/replicate_dpo.h>
28 #DEFIne MFIB_ENTRY_DBG(_e, _fmt, _args...) \
31 __tmp = format(__tmp, "e:[%d:%U", \
32 mfib_entry_get_index(_e), \
33 format_ip46_address, \
34 &_e->mfe_prefix.fp_grp_addr, \
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, \
43 __tmp = format(__tmp, _fmt, ##_args); \
44 clib_warning("%s", __tmp); \
48 #define MFIB_ENTRY_DBG(_e, _fmt, _args...)
52 * The source of an MFIB entry
54 typedef struct mfib_entry_src_t_
57 * Which source this is
59 mfib_source_t mfes_src;
62 * The path-list of forwarding interfaces
64 fib_node_index_t mfes_pl;
69 mfib_entry_flags_t mfes_flags;
72 * The hash table of all interfaces
74 mfib_itf_t *mfes_itfs;
78 * String names for each source
80 static const char *mfib_source_names[] = MFIB_SOURCE_NAMES;
83 * Pool for all fib_entries
85 mfib_entry_t *mfib_entry_pool;
88 mfib_entry_get_node (fib_node_index_t index)
90 return ((fib_node_t*)mfib_entry_get(index));
94 mfib_entry_get_proto (const mfib_entry_t * mfib_entry)
96 return (mfib_entry->mfe_prefix.fp_proto);
99 fib_forward_chain_type_t
100 mfib_entry_get_default_chain_type (const mfib_entry_t *mfib_entry)
102 switch (mfib_entry->mfe_prefix.fp_proto)
104 case FIB_PROTOCOL_IP4:
105 return (FIB_FORW_CHAIN_TYPE_MCAST_IP4);
106 case FIB_PROTOCOL_IP6:
107 return (FIB_FORW_CHAIN_TYPE_MCAST_IP6);
108 case FIB_PROTOCOL_MPLS:
112 return (FIB_FORW_CHAIN_TYPE_MCAST_IP4);
116 format_mfib_entry_dpo (u8 * s, va_list * args)
118 index_t fei = va_arg(*args, index_t);
119 CLIB_UNUSED(u32 indent) = va_arg(*args, u32);
121 return (format(s, "%U",
122 format_mfib_entry, fei,
123 MFIB_ENTRY_FORMAT_BRIEF));
127 format_mfib_entry (u8 * s, va_list * args)
129 fib_node_index_t fei, mfi;
130 mfib_entry_t *mfib_entry;
131 mfib_entry_src_t *msrc;
135 fei = va_arg (*args, fib_node_index_t);
136 level = va_arg (*args, int);
137 mfib_entry = mfib_entry_get(fei);
139 s = format (s, "%U", format_mfib_prefix, &mfib_entry->mfe_prefix);
140 s = format (s, ": %U", format_mfib_entry_flags, mfib_entry->mfe_flags);
142 if (level >= MFIB_ENTRY_FORMAT_DETAIL)
144 s = format (s, "\n");
145 s = format (s, " fib:%d", mfib_entry->mfe_fib_index);
146 s = format (s, " index:%d", mfib_entry_get_index(mfib_entry));
147 s = format (s, " locks:%d\n", mfib_entry->mfe_node.fn_locks);
148 vec_foreach(msrc, mfib_entry->mfe_srcs)
150 s = format (s, " src:%s", mfib_source_names[msrc->mfes_src]);
151 s = format (s, ": %U\n", format_mfib_entry_flags, msrc->mfes_flags);
152 if (FIB_NODE_INDEX_INVALID != msrc->mfes_pl)
154 s = fib_path_list_format(msrc->mfes_pl, s);
156 hash_foreach(sw_if_index, mfi, msrc->mfes_itfs,
158 s = format(s, " %U\n", format_mfib_itf, mfi);
163 s = format(s, "\n Interfaces:");
164 hash_foreach(sw_if_index, mfi, mfib_entry->mfe_itfs,
166 s = format(s, "\n %U", format_mfib_itf, mfi);
169 s = format(s, "\n %U-chain\n %U",
170 format_fib_forw_chain_type,
171 mfib_entry_get_default_chain_type(mfib_entry),
173 &mfib_entry->mfe_rep,
177 if (level >= MFIB_ENTRY_FORMAT_DETAIL2)
179 s = format(s, "\nchildren:");
180 s = fib_node_children_format(mfib_entry->mfe_node.fn_children, s);
187 mfib_entry_from_fib_node (fib_node_t *node)
190 ASSERT(FIB_NODE_TYPE_MFIB_ENTRY == node->fn_type);
192 return ((mfib_entry_t*)node);
196 mfib_entry_src_cmp_for_sort (void * v1,
199 mfib_entry_src_t *esrc1 = v1, *esrc2 = v2;
201 return (esrc1->mfes_src - esrc2->mfes_src);
205 mfib_entry_src_init (mfib_entry_t *mfib_entry,
206 mfib_source_t source)
209 mfib_entry_src_t esrc = {
210 .mfes_pl = FIB_NODE_INDEX_INVALID,
211 .mfes_flags = MFIB_ENTRY_FLAG_NONE,
215 vec_add1(mfib_entry->mfe_srcs, esrc);
216 vec_sort_with_function(mfib_entry->mfe_srcs,
217 mfib_entry_src_cmp_for_sort);
220 static mfib_entry_src_t *
221 mfib_entry_src_find (const mfib_entry_t *mfib_entry,
222 mfib_source_t source,
226 mfib_entry_src_t *esrc;
230 vec_foreach(esrc, mfib_entry->mfe_srcs)
232 if (esrc->mfes_src == source)
249 static mfib_entry_src_t *
250 mfib_entry_src_find_or_create (mfib_entry_t *mfib_entry,
251 mfib_source_t source)
253 mfib_entry_src_t *esrc;
255 esrc = mfib_entry_src_find(mfib_entry, source, NULL);
259 mfib_entry_src_init(mfib_entry, source);
262 return (mfib_entry_src_find(mfib_entry, source, NULL));
265 static mfib_entry_src_t*
266 mfib_entry_get_best_src (const mfib_entry_t *mfib_entry)
268 mfib_entry_src_t *bsrc;
271 * the enum of sources is deliberately arranged in priority order
273 if (0 == vec_len(mfib_entry->mfe_srcs))
279 bsrc = vec_elt_at_index(mfib_entry->mfe_srcs, 0);
286 mfib_entry_src_flush (mfib_entry_src_t *msrc)
291 hash_foreach(sw_if_index, mfii, msrc->mfes_itfs,
293 mfib_itf_delete(mfib_itf_get(mfii));
295 fib_path_list_unlock(msrc->mfes_pl);
299 mfib_entry_src_remove (mfib_entry_t *mfib_entry,
300 mfib_source_t source)
303 mfib_entry_src_t *msrc;
306 msrc = mfib_entry_src_find(mfib_entry, source, &index);
310 mfib_entry_src_flush(msrc);
311 vec_del1(mfib_entry->mfe_srcs, index);
316 mfib_entry_src_n_itfs (const mfib_entry_src_t *msrc)
318 return (hash_elts(msrc->mfes_itfs));
323 mfib_entry_last_lock_gone (fib_node_t *node)
325 mfib_entry_t *mfib_entry;
326 mfib_entry_src_t *msrc;
328 mfib_entry = mfib_entry_from_fib_node(node);
330 dpo_reset(&mfib_entry->mfe_rep);
332 MFIB_ENTRY_DBG(mfib_entry, "last-lock");
334 vec_foreach(msrc, mfib_entry->mfe_srcs)
336 mfib_entry_src_flush(msrc);
339 fib_path_list_unlock(mfib_entry->mfe_parent);
340 vec_free(mfib_entry->mfe_srcs);
342 fib_node_deinit(&mfib_entry->mfe_node);
343 pool_put(mfib_entry_pool, mfib_entry);
347 * mfib_entry_back_walk_notify
349 * A back walk has reach this entry.
351 static fib_node_back_walk_rc_t
352 mfib_entry_back_walk_notify (fib_node_t *node,
353 fib_node_back_walk_ctx_t *ctx)
355 // FIXME - re-evalute
357 return (FIB_NODE_BACK_WALK_CONTINUE);
361 mfib_entry_show_memory (void)
363 fib_show_memory_usage("multicast-Entry",
364 pool_elts(mfib_entry_pool),
365 pool_len(mfib_entry_pool),
366 sizeof(mfib_entry_t));
370 * The MFIB entry's graph node virtual function table
372 static const fib_node_vft_t mfib_entry_vft = {
373 .fnv_get = mfib_entry_get_node,
374 .fnv_last_lock = mfib_entry_last_lock_gone,
375 .fnv_back_walk = mfib_entry_back_walk_notify,
376 .fnv_mem_show = mfib_entry_show_memory,
380 mfib_entry_child_add (fib_node_index_t mfib_entry_index,
381 fib_node_type_t child_type,
382 fib_node_index_t child_index)
384 return (fib_node_child_add(FIB_NODE_TYPE_MFIB_ENTRY,
391 mfib_entry_child_remove (fib_node_index_t mfib_entry_index,
394 fib_node_child_remove(FIB_NODE_TYPE_MFIB_ENTRY,
399 static mfib_entry_t *
400 mfib_entry_alloc (u32 fib_index,
401 const mfib_prefix_t *prefix,
402 fib_node_index_t *mfib_entry_index)
404 mfib_entry_t *mfib_entry;
406 pool_get(mfib_entry_pool, mfib_entry);
407 memset(mfib_entry, 0, sizeof(*mfib_entry));
409 fib_node_init(&mfib_entry->mfe_node,
410 FIB_NODE_TYPE_MFIB_ENTRY);
412 mfib_entry->mfe_fib_index = fib_index;
413 mfib_entry->mfe_prefix = *prefix;
414 mfib_entry->mfe_parent = FIB_NODE_INDEX_INVALID;
416 dpo_reset(&mfib_entry->mfe_rep);
418 *mfib_entry_index = mfib_entry_get_index(mfib_entry);
420 MFIB_ENTRY_DBG(mfib_entry, "alloc");
425 typedef struct mfib_entry_collect_forwarding_ctx_t_
427 load_balance_path_t * next_hops;
428 fib_forward_chain_type_t fct;
429 } mfib_entry_collect_forwarding_ctx_t;
432 mfib_entry_src_collect_forwarding (fib_node_index_t pl_index,
433 fib_node_index_t path_index,
436 mfib_entry_collect_forwarding_ctx_t *ctx;
437 load_balance_path_t *nh;
442 * if the path is not resolved, don't include it.
444 if (!fib_path_is_resolved(path_index))
451 case FIB_FORW_CHAIN_TYPE_MCAST_IP4:
452 case FIB_FORW_CHAIN_TYPE_MCAST_IP6:
454 * EOS traffic with no label to stack, we need the IP Adj
456 vec_add2(ctx->next_hops, nh, 1);
458 nh->path_index = path_index;
459 nh->path_weight = fib_path_get_weight(path_index);
460 fib_path_contribute_forwarding(path_index, ctx->fct, &nh->path_dpo);
463 case FIB_FORW_CHAIN_TYPE_UNICAST_IP4:
464 case FIB_FORW_CHAIN_TYPE_UNICAST_IP6:
465 case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
466 case FIB_FORW_CHAIN_TYPE_MPLS_EOS:
467 case FIB_FORW_CHAIN_TYPE_ETHERNET:
468 case FIB_FORW_CHAIN_TYPE_NSH:
477 mfib_entry_stack (mfib_entry_t *mfib_entry)
481 dp = fib_proto_to_dpo(mfib_entry_get_proto(mfib_entry));
483 if (FIB_NODE_INDEX_INVALID != mfib_entry->mfe_parent)
485 mfib_entry_collect_forwarding_ctx_t ctx = {
487 .fct = mfib_entry_get_default_chain_type(mfib_entry),
490 fib_path_list_walk(mfib_entry->mfe_parent,
491 mfib_entry_src_collect_forwarding,
494 if (!(MFIB_ENTRY_FLAG_EXCLUSIVE & mfib_entry->mfe_flags))
497 * each path contirbutes a next-hop. form a replicate
498 * from those choices.
500 if (!dpo_id_is_valid(&mfib_entry->mfe_rep) ||
501 dpo_is_drop(&mfib_entry->mfe_rep))
503 dpo_id_t tmp_dpo = DPO_INVALID;
507 replicate_create(0, dp));
509 dpo_stack(DPO_MFIB_ENTRY, dp,
510 &mfib_entry->mfe_rep,
515 replicate_multipath_update(&mfib_entry->mfe_rep,
521 * for exclusive routes the source provided a replicate DPO
522 * we we stashed inthe special path list with one path
523 * so we can stack directly on that.
525 ASSERT(1 == vec_len(ctx.next_hops));
527 dpo_stack(DPO_MFIB_ENTRY, dp,
528 &mfib_entry->mfe_rep,
529 &ctx.next_hops[0].path_dpo);
530 dpo_reset(&ctx.next_hops[0].path_dpo);
531 vec_free(ctx.next_hops);
536 dpo_stack(DPO_MFIB_ENTRY, dp,
537 &mfib_entry->mfe_rep,
543 mfib_entry_forwarding_path_add (mfib_entry_src_t *msrc,
544 const fib_route_path_t *rpath)
546 fib_node_index_t old_pl_index;
547 fib_route_path_t *rpaths;
549 ASSERT(!(MFIB_ENTRY_FLAG_EXCLUSIVE & msrc->mfes_flags));
552 * path-lists require a vector of paths
555 vec_add1(rpaths, rpath[0]);
557 old_pl_index = msrc->mfes_pl;
559 if (FIB_NODE_INDEX_INVALID == msrc->mfes_pl)
562 fib_path_list_create(FIB_PATH_LIST_FLAG_NO_URPF,
568 fib_path_list_copy_and_path_add(msrc->mfes_pl,
569 FIB_PATH_LIST_FLAG_NO_URPF,
572 fib_path_list_lock(msrc->mfes_pl);
573 fib_path_list_unlock(old_pl_index);
579 mfib_entry_forwarding_path_remove (mfib_entry_src_t *msrc,
580 const fib_route_path_t *rpath)
582 fib_node_index_t old_pl_index;
583 fib_route_path_t *rpaths;
585 ASSERT(!(MFIB_ENTRY_FLAG_EXCLUSIVE & msrc->mfes_flags));
588 * path-lists require a vector of paths
591 vec_add1(rpaths, rpath[0]);
593 old_pl_index = msrc->mfes_pl;
596 fib_path_list_copy_and_path_remove(msrc->mfes_pl,
597 FIB_PATH_LIST_FLAG_NONE,
600 fib_path_list_lock(msrc->mfes_pl);
601 fib_path_list_unlock(old_pl_index);
605 return (FIB_NODE_INDEX_INVALID != msrc->mfes_pl);
609 mfib_entry_recalculate_forwarding (mfib_entry_t *mfib_entry)
611 fib_node_index_t old_pl_index;
612 mfib_entry_src_t *bsrc;
614 old_pl_index = mfib_entry->mfe_parent;
617 * copy the forwarding data from the bast source
619 bsrc = mfib_entry_get_best_src(mfib_entry);
623 mfib_entry->mfe_parent = FIB_NODE_INDEX_INVALID;
627 mfib_entry->mfe_parent = bsrc->mfes_pl;
628 mfib_entry->mfe_flags = bsrc->mfes_flags;
629 mfib_entry->mfe_itfs = bsrc->mfes_itfs;
633 * re-stack the entry on the best forwarding info.
635 if (old_pl_index != mfib_entry->mfe_parent ||
636 FIB_NODE_INDEX_INVALID == old_pl_index)
638 mfib_entry_stack(mfib_entry);
640 fib_path_list_lock(mfib_entry->mfe_parent);
641 fib_path_list_unlock(old_pl_index);
647 mfib_entry_create (u32 fib_index,
648 mfib_source_t source,
649 const mfib_prefix_t *prefix,
650 mfib_entry_flags_t entry_flags)
652 fib_node_index_t mfib_entry_index;
653 mfib_entry_t *mfib_entry;
654 mfib_entry_src_t *msrc;
656 mfib_entry = mfib_entry_alloc(fib_index, prefix,
658 msrc = mfib_entry_src_find_or_create(mfib_entry, source);
659 msrc->mfes_flags = entry_flags;
661 mfib_entry_recalculate_forwarding(mfib_entry);
663 return (mfib_entry_index);
667 mfib_entry_ok_for_delete (mfib_entry_t *mfib_entry)
669 return (0 == vec_len(mfib_entry->mfe_srcs));
673 mfib_entry_src_ok_for_delete (const mfib_entry_src_t *msrc)
675 return ((MFIB_ENTRY_FLAG_NONE == msrc->mfes_flags &&
676 0 == mfib_entry_src_n_itfs(msrc)));
680 mfib_entry_update (fib_node_index_t mfib_entry_index,
681 mfib_source_t source,
682 mfib_entry_flags_t entry_flags,
685 mfib_entry_t *mfib_entry;
686 mfib_entry_src_t *msrc;
688 mfib_entry = mfib_entry_get(mfib_entry_index);
689 msrc = mfib_entry_src_find_or_create(mfib_entry, source);
690 msrc->mfes_flags = entry_flags;
692 if (INDEX_INVALID != repi)
695 * The source is providing its own replicate DPO.
696 * Create a sepcial path-list to manage it, that way
697 * this entry and the source are equivalent to a normal
700 fib_node_index_t old_pl_index;
702 dpo_id_t dpo = DPO_INVALID;
704 fp = mfib_entry_get_proto(mfib_entry);
705 old_pl_index = msrc->mfes_pl;
707 dpo_set(&dpo, DPO_REPLICATE,
708 fib_proto_to_dpo(fp),
712 fib_path_list_create_special(fp,
713 FIB_PATH_LIST_FLAG_EXCLUSIVE,
717 fib_path_list_lock(msrc->mfes_pl);
718 fib_path_list_unlock(old_pl_index);
721 if (mfib_entry_src_ok_for_delete(msrc))
724 * this source has no interfaces and no flags.
725 * it has nothing left to give - remove it
727 mfib_entry_src_remove(mfib_entry, source);
730 mfib_entry_recalculate_forwarding(mfib_entry);
732 return (mfib_entry_ok_for_delete(mfib_entry));
736 mfib_entry_itf_add (mfib_entry_src_t *msrc,
740 hash_set(msrc->mfes_itfs, sw_if_index, mi);
744 mfib_entry_itf_remove (mfib_entry_src_t *msrc,
749 mfi = mfib_entry_itf_find(msrc->mfes_itfs, sw_if_index);
751 mfib_itf_delete(mfi);
753 hash_unset(msrc->mfes_itfs, sw_if_index);
757 mfib_entry_path_update (fib_node_index_t mfib_entry_index,
758 mfib_source_t source,
759 const fib_route_path_t *rpath,
760 mfib_itf_flags_t itf_flags)
762 mfib_entry_t *mfib_entry;
763 mfib_entry_src_t *msrc;
764 mfib_itf_t *mfib_itf;
766 mfib_entry = mfib_entry_get(mfib_entry_index);
767 ASSERT(NULL != mfib_entry);
768 msrc = mfib_entry_src_find_or_create(mfib_entry, source);
771 * search for the interface in the current set
773 mfib_itf = mfib_entry_itf_find(msrc->mfes_itfs,
774 rpath[0].frp_sw_if_index);
776 if (NULL == mfib_itf)
779 * this is a path we do not yet have. If it is forwarding then we
780 * add it to the replication set
782 if (itf_flags & MFIB_ITF_FLAG_FORWARD)
784 mfib_entry_forwarding_path_add(msrc, rpath);
787 * construct a new ITF for this entry's list
789 mfib_entry_itf_add(msrc,
790 rpath[0].frp_sw_if_index,
791 mfib_itf_create(rpath[0].frp_sw_if_index,
796 int was_forwarding = !!(mfib_itf->mfi_flags & MFIB_ITF_FLAG_FORWARD);
797 int is_forwarding = !!(itf_flags & MFIB_ITF_FLAG_FORWARD);
799 if (!was_forwarding && is_forwarding)
801 mfib_entry_forwarding_path_add(msrc, rpath);
803 else if (was_forwarding && !is_forwarding)
805 mfib_entry_forwarding_path_remove(msrc, rpath);
808 * packets in flight see these updates.
810 mfib_itf->mfi_flags = itf_flags;
813 mfib_entry_recalculate_forwarding(mfib_entry);
817 * mfib_entry_path_remove
819 * remove a path from the entry.
820 * return the mfib_entry's index if it is still present, INVALID otherwise.
823 mfib_entry_path_remove (fib_node_index_t mfib_entry_index,
824 mfib_source_t source,
825 const fib_route_path_t *rpath)
827 mfib_entry_t *mfib_entry;
828 mfib_entry_src_t *msrc;
829 mfib_itf_t *mfib_itf;
831 mfib_entry = mfib_entry_get(mfib_entry_index);
832 ASSERT(NULL != mfib_entry);
833 msrc = mfib_entry_src_find(mfib_entry, source, NULL);
838 * there are no paths left for this source
840 return (mfib_entry_ok_for_delete(mfib_entry));
844 * search for the interface in the current set
846 mfib_itf = mfib_entry_itf_find(msrc->mfes_itfs,
847 rpath[0].frp_sw_if_index);
849 if (NULL == mfib_itf)
852 * removing a path that does not exist
854 return (mfib_entry_ok_for_delete(mfib_entry));
858 * we have this path. If it is forwarding then we
859 * remove it to the replication set
861 if (mfib_itf->mfi_flags & MFIB_ITF_FLAG_FORWARD)
863 mfib_entry_forwarding_path_remove(msrc, rpath);
867 * remove the interface/path from this entry's list
869 mfib_entry_itf_remove(msrc, rpath[0].frp_sw_if_index);
871 if (mfib_entry_src_ok_for_delete(msrc))
874 * this source has no interfaces and no flags.
875 * it has nothing left to give - remove it
877 mfib_entry_src_remove(mfib_entry, source);
880 mfib_entry_recalculate_forwarding(mfib_entry);
882 return (mfib_entry_ok_for_delete(mfib_entry));
888 * The source is withdrawing all the paths it provided
891 mfib_entry_delete (fib_node_index_t mfib_entry_index,
892 mfib_source_t source)
894 mfib_entry_t *mfib_entry;
896 mfib_entry = mfib_entry_get(mfib_entry_index);
897 mfib_entry_src_remove(mfib_entry, source);
899 mfib_entry_recalculate_forwarding(mfib_entry);
901 return (mfib_entry_ok_for_delete(mfib_entry));
905 fib_ip4_address_compare (ip4_address_t * a1,
909 * IP addresses are unsiged ints. the return value here needs to be signed
910 * a simple subtraction won't cut it.
911 * If the addresses are the same, the sort order is undefiend, so phoey.
913 return ((clib_net_to_host_u32(a1->data_u32) >
914 clib_net_to_host_u32(a2->data_u32) ) ?
919 fib_ip6_address_compare (ip6_address_t * a1,
923 for (i = 0; i < ARRAY_LEN (a1->as_u16); i++)
925 int cmp = (clib_net_to_host_u16 (a1->as_u16[i]) -
926 clib_net_to_host_u16 (a2->as_u16[i]));
934 mfib_entry_cmp (fib_node_index_t mfib_entry_index1,
935 fib_node_index_t mfib_entry_index2)
937 mfib_entry_t *mfib_entry1, *mfib_entry2;
940 mfib_entry1 = mfib_entry_get(mfib_entry_index1);
941 mfib_entry2 = mfib_entry_get(mfib_entry_index2);
943 switch (mfib_entry1->mfe_prefix.fp_proto)
945 case FIB_PROTOCOL_IP4:
946 cmp = fib_ip4_address_compare(&mfib_entry1->mfe_prefix.fp_grp_addr.ip4,
947 &mfib_entry2->mfe_prefix.fp_grp_addr.ip4);
951 cmp = fib_ip4_address_compare(&mfib_entry1->mfe_prefix.fp_src_addr.ip4,
952 &mfib_entry2->mfe_prefix.fp_src_addr.ip4);
955 case FIB_PROTOCOL_IP6:
956 cmp = fib_ip6_address_compare(&mfib_entry1->mfe_prefix.fp_grp_addr.ip6,
957 &mfib_entry2->mfe_prefix.fp_grp_addr.ip6);
961 cmp = fib_ip6_address_compare(&mfib_entry1->mfe_prefix.fp_src_addr.ip6,
962 &mfib_entry2->mfe_prefix.fp_src_addr.ip6);
965 case FIB_PROTOCOL_MPLS:
972 cmp = (mfib_entry1->mfe_prefix.fp_len - mfib_entry2->mfe_prefix.fp_len);
978 mfib_entry_cmp_for_sort (void *i1, void *i2)
980 fib_node_index_t *mfib_entry_index1 = i1, *mfib_entry_index2 = i2;
982 return (mfib_entry_cmp(*mfib_entry_index1,
983 *mfib_entry_index2));
987 mfib_entry_lock (fib_node_index_t mfib_entry_index)
989 mfib_entry_t *mfib_entry;
991 mfib_entry = mfib_entry_get(mfib_entry_index);
993 fib_node_lock(&mfib_entry->mfe_node);
997 mfib_entry_unlock (fib_node_index_t mfib_entry_index)
999 mfib_entry_t *mfib_entry;
1001 mfib_entry = mfib_entry_get(mfib_entry_index);
1003 fib_node_unlock(&mfib_entry->mfe_node);
1007 mfib_entry_dpo_lock (dpo_id_t *dpo)
1011 mfib_entry_dpo_unlock (dpo_id_t *dpo)
1015 const static dpo_vft_t mfib_entry_dpo_vft = {
1016 .dv_lock = mfib_entry_dpo_lock,
1017 .dv_unlock = mfib_entry_dpo_unlock,
1018 .dv_format = format_mfib_entry_dpo,
1019 .dv_mem_show = mfib_entry_show_memory,
1022 const static char* const mfib_entry_ip4_nodes[] =
1024 "ip4-mfib-forward-rpf",
1027 const static char* const mfib_entry_ip6_nodes[] =
1029 "ip6-mfib-forward-rpf",
1033 const static char* const * const mfib_entry_nodes[DPO_PROTO_NUM] =
1035 [DPO_PROTO_IP4] = mfib_entry_ip4_nodes,
1036 [DPO_PROTO_IP6] = mfib_entry_ip6_nodes,
1040 mfib_entry_module_init (void)
1042 fib_node_register_type (FIB_NODE_TYPE_MFIB_ENTRY, &mfib_entry_vft);
1043 dpo_register(DPO_MFIB_ENTRY, &mfib_entry_dpo_vft, mfib_entry_nodes);
1047 mfib_entry_encode (fib_node_index_t mfib_entry_index,
1048 fib_route_path_encode_t **api_rpaths)
1050 mfib_entry_t *mfib_entry;
1052 mfib_entry = mfib_entry_get(mfib_entry_index);
1053 if (FIB_NODE_INDEX_INVALID != mfib_entry->mfe_parent)
1055 fib_path_list_walk(mfib_entry->mfe_parent,
1063 mfib_entry_get_prefix (fib_node_index_t mfib_entry_index,
1066 mfib_entry_t *mfib_entry;
1068 mfib_entry = mfib_entry_get(mfib_entry_index);
1069 *pfx = mfib_entry->mfe_prefix;
1073 mfib_entry_get_fib_index (fib_node_index_t mfib_entry_index)
1075 mfib_entry_t *mfib_entry;
1077 mfib_entry = mfib_entry_get(mfib_entry_index);
1079 return (mfib_entry->mfe_fib_index);
1083 mfib_entry_contribute_forwarding (fib_node_index_t mfib_entry_index,
1084 fib_forward_chain_type_t type,
1088 * An IP mFIB entry can only provide a forwarding chain that
1089 * is the same IP proto as the prefix.
1090 * No use-cases (i know of) for other combinations.
1092 mfib_entry_t *mfib_entry;
1095 mfib_entry = mfib_entry_get(mfib_entry_index);
1097 dp = fib_proto_to_dpo(mfib_entry->mfe_prefix.fp_proto);
1099 if (type == fib_forw_chain_type_from_dpo_proto(dp))
1101 dpo_copy(dpo, &mfib_entry->mfe_rep);
1105 dpo_copy(dpo, drop_dpo_get(dp));
1110 mfib_entry_pool_size (void)
1112 return (pool_elts(mfib_entry_pool));
1115 static clib_error_t *
1116 show_mfib_entry_command (vlib_main_t * vm,
1117 unformat_input_t * input,
1118 vlib_cli_command_t * cmd)
1120 fib_node_index_t fei;
1122 if (unformat (input, "%d", &fei))
1125 * show one in detail
1127 if (!pool_is_free_index(mfib_entry_pool, fei))
1129 vlib_cli_output (vm, "%d@%U",
1131 format_mfib_entry, fei,
1132 MFIB_ENTRY_FORMAT_DETAIL2);
1136 vlib_cli_output (vm, "entry %d invalid", fei);
1144 vlib_cli_output (vm, "FIB Entries:");
1145 pool_foreach_index(fei, mfib_entry_pool,
1147 vlib_cli_output (vm, "%d@%U",
1149 format_mfib_entry, fei,
1150 MFIB_ENTRY_FORMAT_BRIEF);
1158 * This commnad displays an entry, or all entries, in the mfib tables indexed by their unique
1159 * numerical indentifier.
1161 VLIB_CLI_COMMAND (show_mfib_entry, static) = {
1162 .path = "show mfib entry",
1163 .function = show_mfib_entry_command,
1164 .short_help = "show mfib entry",