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));
298 mfib_entry_src_remove (mfib_entry_t *mfib_entry,
299 mfib_source_t source)
302 mfib_entry_src_t *msrc;
305 msrc = mfib_entry_src_find(mfib_entry, source, &index);
309 mfib_entry_src_flush(msrc);
310 vec_del1(mfib_entry->mfe_srcs, index);
315 mfib_entry_src_n_itfs (const mfib_entry_src_t *msrc)
317 return (hash_elts(msrc->mfes_itfs));
322 mfib_entry_last_lock_gone (fib_node_t *node)
324 mfib_entry_t *mfib_entry;
325 mfib_entry_src_t *msrc;
327 mfib_entry = mfib_entry_from_fib_node(node);
329 dpo_reset(&mfib_entry->mfe_rep);
331 MFIB_ENTRY_DBG(mfib_entry, "last-lock");
333 vec_foreach(msrc, mfib_entry->mfe_srcs)
335 mfib_entry_src_flush(msrc);
338 fib_path_list_unlock(mfib_entry->mfe_parent);
339 vec_free(mfib_entry->mfe_srcs);
341 fib_node_deinit(&mfib_entry->mfe_node);
342 pool_put(mfib_entry_pool, mfib_entry);
346 * mfib_entry_back_walk_notify
348 * A back walk has reach this entry.
350 static fib_node_back_walk_rc_t
351 mfib_entry_back_walk_notify (fib_node_t *node,
352 fib_node_back_walk_ctx_t *ctx)
354 // FIXME - re-evalute
356 return (FIB_NODE_BACK_WALK_CONTINUE);
360 mfib_entry_show_memory (void)
362 fib_show_memory_usage("multicast-Entry",
363 pool_elts(mfib_entry_pool),
364 pool_len(mfib_entry_pool),
365 sizeof(mfib_entry_t));
369 * The MFIB entry's graph node virtual function table
371 static const fib_node_vft_t mfib_entry_vft = {
372 .fnv_get = mfib_entry_get_node,
373 .fnv_last_lock = mfib_entry_last_lock_gone,
374 .fnv_back_walk = mfib_entry_back_walk_notify,
375 .fnv_mem_show = mfib_entry_show_memory,
379 mfib_entry_child_add (fib_node_index_t mfib_entry_index,
380 fib_node_type_t child_type,
381 fib_node_index_t child_index)
383 return (fib_node_child_add(FIB_NODE_TYPE_MFIB_ENTRY,
390 mfib_entry_child_remove (fib_node_index_t mfib_entry_index,
393 fib_node_child_remove(FIB_NODE_TYPE_MFIB_ENTRY,
398 static mfib_entry_t *
399 mfib_entry_alloc (u32 fib_index,
400 const mfib_prefix_t *prefix,
401 fib_node_index_t *mfib_entry_index)
403 mfib_entry_t *mfib_entry;
405 pool_get(mfib_entry_pool, mfib_entry);
406 memset(mfib_entry, 0, sizeof(*mfib_entry));
408 fib_node_init(&mfib_entry->mfe_node,
409 FIB_NODE_TYPE_MFIB_ENTRY);
411 mfib_entry->mfe_fib_index = fib_index;
412 mfib_entry->mfe_prefix = *prefix;
413 mfib_entry->mfe_parent = FIB_NODE_INDEX_INVALID;
415 dpo_reset(&mfib_entry->mfe_rep);
417 *mfib_entry_index = mfib_entry_get_index(mfib_entry);
419 MFIB_ENTRY_DBG(mfib_entry, "alloc");
424 typedef struct mfib_entry_collect_forwarding_ctx_t_
426 load_balance_path_t * next_hops;
427 fib_forward_chain_type_t fct;
428 } mfib_entry_collect_forwarding_ctx_t;
431 mfib_entry_src_collect_forwarding (fib_node_index_t pl_index,
432 fib_node_index_t path_index,
435 mfib_entry_collect_forwarding_ctx_t *ctx;
436 load_balance_path_t *nh;
441 * if the path is not resolved, don't include it.
443 if (!fib_path_is_resolved(path_index))
450 case FIB_FORW_CHAIN_TYPE_MCAST_IP4:
451 case FIB_FORW_CHAIN_TYPE_MCAST_IP6:
453 * EOS traffic with no label to stack, we need the IP Adj
455 vec_add2(ctx->next_hops, nh, 1);
457 nh->path_index = path_index;
458 nh->path_weight = fib_path_get_weight(path_index);
459 fib_path_contribute_forwarding(path_index, ctx->fct, &nh->path_dpo);
462 case FIB_FORW_CHAIN_TYPE_UNICAST_IP4:
463 case FIB_FORW_CHAIN_TYPE_UNICAST_IP6:
464 case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
465 case FIB_FORW_CHAIN_TYPE_MPLS_EOS:
466 case FIB_FORW_CHAIN_TYPE_ETHERNET:
475 mfib_entry_stack (mfib_entry_t *mfib_entry)
477 mfib_entry_collect_forwarding_ctx_t ctx = {
479 .fct = mfib_entry_get_default_chain_type(mfib_entry),
483 dp = fib_proto_to_dpo(mfib_entry_get_proto(mfib_entry));
485 if (FIB_NODE_INDEX_INVALID != mfib_entry->mfe_parent)
487 fib_path_list_walk(mfib_entry->mfe_parent,
488 mfib_entry_src_collect_forwarding,
491 if (!dpo_id_is_valid(&mfib_entry->mfe_rep) ||
492 dpo_is_drop(&mfib_entry->mfe_rep))
494 dpo_id_t tmp_dpo = DPO_INVALID;
498 replicate_create(0, dp));
500 dpo_stack(DPO_MFIB_ENTRY, dp,
501 &mfib_entry->mfe_rep,
506 replicate_multipath_update(&mfib_entry->mfe_rep,
511 dpo_stack(DPO_MFIB_ENTRY, dp,
512 &mfib_entry->mfe_rep,
518 mfib_entry_forwarding_path_add (mfib_entry_src_t *msrc,
519 const fib_route_path_t *rpath)
521 fib_node_index_t old_pl_index;
522 fib_route_path_t *rpaths;
525 * path-lists require a vector of paths
528 vec_add1(rpaths, rpath[0]);
530 old_pl_index = msrc->mfes_pl;
532 if (FIB_NODE_INDEX_INVALID == msrc->mfes_pl)
535 fib_path_list_create(FIB_PATH_LIST_FLAG_NO_URPF,
541 fib_path_list_copy_and_path_add(msrc->mfes_pl,
542 FIB_PATH_LIST_FLAG_NO_URPF,
545 fib_path_list_lock(msrc->mfes_pl);
546 fib_path_list_unlock(old_pl_index);
552 mfib_entry_forwarding_path_remove (mfib_entry_src_t *msrc,
553 const fib_route_path_t *rpath)
555 fib_node_index_t old_pl_index;
556 fib_route_path_t *rpaths;
559 * path-lists require a vector of paths
562 vec_add1(rpaths, rpath[0]);
564 old_pl_index = msrc->mfes_pl;
567 fib_path_list_copy_and_path_remove(msrc->mfes_pl,
568 FIB_PATH_LIST_FLAG_NONE,
571 fib_path_list_lock(msrc->mfes_pl);
572 fib_path_list_unlock(old_pl_index);
576 return (FIB_NODE_INDEX_INVALID != msrc->mfes_pl);
580 mfib_entry_recalculate_forwarding (mfib_entry_t *mfib_entry)
582 fib_node_index_t old_pl_index;
583 mfib_entry_src_t *bsrc;
585 old_pl_index = mfib_entry->mfe_parent;
588 * copy the forwarding data from the bast source
590 bsrc = mfib_entry_get_best_src(mfib_entry);
594 mfib_entry->mfe_parent = FIB_NODE_INDEX_INVALID;
598 mfib_entry->mfe_parent = bsrc->mfes_pl;
599 mfib_entry->mfe_flags = bsrc->mfes_flags;
600 mfib_entry->mfe_itfs = bsrc->mfes_itfs;
604 * re-stack the entry on the best forwarding info.
606 if (old_pl_index != mfib_entry->mfe_parent ||
607 FIB_NODE_INDEX_INVALID == old_pl_index)
609 mfib_entry_stack(mfib_entry);
611 fib_path_list_lock(mfib_entry->mfe_parent);
612 fib_path_list_unlock(old_pl_index);
618 mfib_entry_create (u32 fib_index,
619 mfib_source_t source,
620 const mfib_prefix_t *prefix,
621 mfib_entry_flags_t entry_flags)
623 fib_node_index_t mfib_entry_index;
624 mfib_entry_t *mfib_entry;
625 mfib_entry_src_t *msrc;
627 mfib_entry = mfib_entry_alloc(fib_index, prefix,
629 msrc = mfib_entry_src_find_or_create(mfib_entry, source);
630 msrc->mfes_flags = entry_flags;
632 mfib_entry_recalculate_forwarding(mfib_entry);
634 return (mfib_entry_index);
638 mfib_entry_ok_for_delete (mfib_entry_t *mfib_entry)
640 return (0 == vec_len(mfib_entry->mfe_srcs));
644 mfib_entry_src_ok_for_delete (const mfib_entry_src_t *msrc)
646 return ((MFIB_ENTRY_FLAG_NONE == msrc->mfes_flags &&
647 0 == mfib_entry_src_n_itfs(msrc)));
651 mfib_entry_update (fib_node_index_t mfib_entry_index,
652 mfib_source_t source,
653 mfib_entry_flags_t entry_flags)
655 mfib_entry_t *mfib_entry;
656 mfib_entry_src_t *msrc;
658 mfib_entry = mfib_entry_get(mfib_entry_index);
659 msrc = mfib_entry_src_find_or_create(mfib_entry, source);
660 msrc->mfes_flags = entry_flags;
662 if (mfib_entry_src_ok_for_delete(msrc))
665 * this source has no interfaces and no flags.
666 * it has nothing left to give - remove it
668 mfib_entry_src_remove(mfib_entry, source);
671 mfib_entry_recalculate_forwarding(mfib_entry);
673 return (mfib_entry_ok_for_delete(mfib_entry));
677 mfib_entry_itf_add (mfib_entry_src_t *msrc,
681 hash_set(msrc->mfes_itfs, sw_if_index, mi);
685 mfib_entry_itf_remove (mfib_entry_src_t *msrc,
690 mfi = mfib_entry_itf_find(msrc->mfes_itfs, sw_if_index);
692 mfib_itf_delete(mfi);
694 hash_unset(msrc->mfes_itfs, sw_if_index);
698 mfib_entry_path_update (fib_node_index_t mfib_entry_index,
699 mfib_source_t source,
700 const fib_route_path_t *rpath,
701 mfib_itf_flags_t itf_flags)
703 mfib_entry_t *mfib_entry;
704 mfib_entry_src_t *msrc;
705 mfib_itf_t *mfib_itf;
707 mfib_entry = mfib_entry_get(mfib_entry_index);
708 ASSERT(NULL != mfib_entry);
709 msrc = mfib_entry_src_find_or_create(mfib_entry, source);
712 * search for the interface in the current set
714 mfib_itf = mfib_entry_itf_find(msrc->mfes_itfs,
715 rpath[0].frp_sw_if_index);
717 if (NULL == mfib_itf)
720 * this is a path we do not yet have. If it is forwarding then we
721 * add it to the replication set
723 if (itf_flags & MFIB_ITF_FLAG_FORWARD)
725 mfib_entry_forwarding_path_add(msrc, rpath);
728 * construct a new ITF for this entry's list
730 mfib_entry_itf_add(msrc,
731 rpath[0].frp_sw_if_index,
732 mfib_itf_create(rpath[0].frp_sw_if_index,
737 int was_forwarding = !!(mfib_itf->mfi_flags & MFIB_ITF_FLAG_FORWARD);
738 int is_forwarding = !!(itf_flags & MFIB_ITF_FLAG_FORWARD);
740 if (!was_forwarding && is_forwarding)
742 mfib_entry_forwarding_path_add(msrc, rpath);
744 else if (was_forwarding && !is_forwarding)
746 mfib_entry_forwarding_path_remove(msrc, rpath);
749 * packets in flight see these updates.
751 mfib_itf->mfi_flags = itf_flags;
754 mfib_entry_recalculate_forwarding(mfib_entry);
758 * mfib_entry_path_remove
760 * remove a path from the entry.
761 * return the mfib_entry's index if it is still present, INVALID otherwise.
764 mfib_entry_path_remove (fib_node_index_t mfib_entry_index,
765 mfib_source_t source,
766 const fib_route_path_t *rpath)
768 mfib_entry_t *mfib_entry;
769 mfib_entry_src_t *msrc;
770 mfib_itf_t *mfib_itf;
772 mfib_entry = mfib_entry_get(mfib_entry_index);
773 ASSERT(NULL != mfib_entry);
774 msrc = mfib_entry_src_find(mfib_entry, source, NULL);
779 * there are no paths left for this source
781 return (mfib_entry_ok_for_delete(mfib_entry));
785 * search for the interface in the current set
787 mfib_itf = mfib_entry_itf_find(msrc->mfes_itfs,
788 rpath[0].frp_sw_if_index);
790 if (NULL == mfib_itf)
793 * removing a path that does not exist
795 return (mfib_entry_ok_for_delete(mfib_entry));
799 * we have this path. If it is forwarding then we
800 * remove it to the replication set
802 if (mfib_itf->mfi_flags & MFIB_ITF_FLAG_FORWARD)
804 mfib_entry_forwarding_path_remove(msrc, rpath);
808 * remove the interface/path from this entry's list
810 mfib_entry_itf_remove(msrc, rpath[0].frp_sw_if_index);
812 if (mfib_entry_src_ok_for_delete(msrc))
815 * this source has no interfaces and no flags.
816 * it has nothing left to give - remove it
818 mfib_entry_src_remove(mfib_entry, source);
821 mfib_entry_recalculate_forwarding(mfib_entry);
823 return (mfib_entry_ok_for_delete(mfib_entry));
829 * The source is withdrawing all the paths it provided
832 mfib_entry_delete (fib_node_index_t mfib_entry_index,
833 mfib_source_t source)
835 mfib_entry_t *mfib_entry;
837 mfib_entry = mfib_entry_get(mfib_entry_index);
838 mfib_entry_src_remove(mfib_entry, source);
840 mfib_entry_recalculate_forwarding(mfib_entry);
842 return (mfib_entry_ok_for_delete(mfib_entry));
846 fib_ip4_address_compare (ip4_address_t * a1,
850 * IP addresses are unsiged ints. the return value here needs to be signed
851 * a simple subtraction won't cut it.
852 * If the addresses are the same, the sort order is undefiend, so phoey.
854 return ((clib_net_to_host_u32(a1->data_u32) >
855 clib_net_to_host_u32(a2->data_u32) ) ?
860 fib_ip6_address_compare (ip6_address_t * a1,
864 for (i = 0; i < ARRAY_LEN (a1->as_u16); i++)
866 int cmp = (clib_net_to_host_u16 (a1->as_u16[i]) -
867 clib_net_to_host_u16 (a2->as_u16[i]));
875 mfib_entry_cmp (fib_node_index_t mfib_entry_index1,
876 fib_node_index_t mfib_entry_index2)
878 mfib_entry_t *mfib_entry1, *mfib_entry2;
881 mfib_entry1 = mfib_entry_get(mfib_entry_index1);
882 mfib_entry2 = mfib_entry_get(mfib_entry_index2);
884 switch (mfib_entry1->mfe_prefix.fp_proto)
886 case FIB_PROTOCOL_IP4:
887 cmp = fib_ip4_address_compare(&mfib_entry1->mfe_prefix.fp_grp_addr.ip4,
888 &mfib_entry2->mfe_prefix.fp_grp_addr.ip4);
892 cmp = fib_ip4_address_compare(&mfib_entry1->mfe_prefix.fp_src_addr.ip4,
893 &mfib_entry2->mfe_prefix.fp_src_addr.ip4);
896 case FIB_PROTOCOL_IP6:
897 cmp = fib_ip6_address_compare(&mfib_entry1->mfe_prefix.fp_grp_addr.ip6,
898 &mfib_entry2->mfe_prefix.fp_grp_addr.ip6);
902 cmp = fib_ip6_address_compare(&mfib_entry1->mfe_prefix.fp_src_addr.ip6,
903 &mfib_entry2->mfe_prefix.fp_src_addr.ip6);
906 case FIB_PROTOCOL_MPLS:
913 cmp = (mfib_entry1->mfe_prefix.fp_len - mfib_entry2->mfe_prefix.fp_len);
919 mfib_entry_cmp_for_sort (void *i1, void *i2)
921 fib_node_index_t *mfib_entry_index1 = i1, *mfib_entry_index2 = i2;
923 return (mfib_entry_cmp(*mfib_entry_index1,
924 *mfib_entry_index2));
928 mfib_entry_lock (fib_node_index_t mfib_entry_index)
930 mfib_entry_t *mfib_entry;
932 mfib_entry = mfib_entry_get(mfib_entry_index);
934 fib_node_lock(&mfib_entry->mfe_node);
938 mfib_entry_unlock (fib_node_index_t mfib_entry_index)
940 mfib_entry_t *mfib_entry;
942 mfib_entry = mfib_entry_get(mfib_entry_index);
944 fib_node_unlock(&mfib_entry->mfe_node);
948 mfib_entry_dpo_lock (dpo_id_t *dpo)
952 mfib_entry_dpo_unlock (dpo_id_t *dpo)
956 const static dpo_vft_t mfib_entry_dpo_vft = {
957 .dv_lock = mfib_entry_dpo_lock,
958 .dv_unlock = mfib_entry_dpo_unlock,
959 .dv_format = format_mfib_entry_dpo,
960 .dv_mem_show = mfib_entry_show_memory,
963 const static char* const mfib_entry_ip4_nodes[] =
965 "ip4-mfib-forward-rpf",
968 const static char* const mfib_entry_ip6_nodes[] =
970 "ip6-mfib-forward-rpf",
974 const static char* const * const mfib_entry_nodes[DPO_PROTO_NUM] =
976 [DPO_PROTO_IP4] = mfib_entry_ip4_nodes,
977 [DPO_PROTO_IP6] = mfib_entry_ip6_nodes,
981 mfib_entry_module_init (void)
983 fib_node_register_type (FIB_NODE_TYPE_MFIB_ENTRY, &mfib_entry_vft);
984 dpo_register(DPO_MFIB_ENTRY, &mfib_entry_dpo_vft, mfib_entry_nodes);
988 mfib_entry_encode (fib_node_index_t mfib_entry_index,
989 fib_route_path_encode_t **api_rpaths)
991 mfib_entry_t *mfib_entry;
993 mfib_entry = mfib_entry_get(mfib_entry_index);
994 fib_path_list_walk(mfib_entry->mfe_parent, fib_path_encode, api_rpaths);
998 mfib_entry_get_prefix (fib_node_index_t mfib_entry_index,
1001 mfib_entry_t *mfib_entry;
1003 mfib_entry = mfib_entry_get(mfib_entry_index);
1004 *pfx = mfib_entry->mfe_prefix;
1008 mfib_entry_get_fib_index (fib_node_index_t mfib_entry_index)
1010 mfib_entry_t *mfib_entry;
1012 mfib_entry = mfib_entry_get(mfib_entry_index);
1014 return (mfib_entry->mfe_fib_index);
1018 mfib_entry_contribute_forwarding (fib_node_index_t mfib_entry_index,
1019 fib_forward_chain_type_t type,
1023 * An IP mFIB entry can only provide a forwarding chain that
1024 * is the same IP proto as the prefix.
1025 * No use-cases (i know of) for other combinations.
1027 mfib_entry_t *mfib_entry;
1030 mfib_entry = mfib_entry_get(mfib_entry_index);
1032 dp = fib_proto_to_dpo(mfib_entry->mfe_prefix.fp_proto);
1034 if (type == fib_forw_chain_type_from_dpo_proto(dp))
1036 dpo_copy(dpo, &mfib_entry->mfe_rep);
1040 dpo_copy(dpo, drop_dpo_get(dp));
1045 mfib_entry_pool_size (void)
1047 return (pool_elts(mfib_entry_pool));
1050 static clib_error_t *
1051 show_mfib_entry_command (vlib_main_t * vm,
1052 unformat_input_t * input,
1053 vlib_cli_command_t * cmd)
1055 fib_node_index_t fei;
1057 if (unformat (input, "%d", &fei))
1060 * show one in detail
1062 if (!pool_is_free_index(mfib_entry_pool, fei))
1064 vlib_cli_output (vm, "%d@%U",
1066 format_mfib_entry, fei,
1067 MFIB_ENTRY_FORMAT_DETAIL2);
1071 vlib_cli_output (vm, "entry %d invalid", fei);
1079 vlib_cli_output (vm, "FIB Entries:");
1080 pool_foreach_index(fei, mfib_entry_pool,
1082 vlib_cli_output (vm, "%d@%U",
1084 format_mfib_entry, fei,
1085 MFIB_ENTRY_FORMAT_BRIEF);
1092 VLIB_CLI_COMMAND (show_mfib_entry, static) = {
1093 .path = "show mfib entry",
1094 .function = show_mfib_entry_command,
1095 .short_help = "show mfib entry",