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 <vnet/lisp-gpe/lisp_gpe_fwd_entry.h>
17 #include <vnet/lisp-gpe/lisp_gpe_adjacency.h>
18 #include <vnet/lisp-gpe/lisp_gpe_tenant.h>
19 #include <vnet/lisp-cp/lisp_cp_dpo.h>
20 #include <vnet/fib/fib_table.h>
21 #include <vnet/fib/fib_entry.h>
22 #include <vnet/fib/fib_path_list.h>
23 #include <vnet/fib/ip6_fib.h>
24 #include <vnet/fib/ip4_fib.h>
25 #include <vnet/dpo/drop_dpo.h>
26 #include <vnet/dpo/lookup_dpo.h>
27 #include <vnet/dpo/load_balance.h>
28 #include <vnet/adj/adj_midchain.h>
31 * @brief Add route to IP4 or IP6 Destination FIB.
33 * Add a route to the destination FIB that results in the lookup
34 * in the SRC FIB. The SRC FIB is created is it does not yet exist.
36 * @param[in] dst_table_id Destination FIB Table-ID
37 * @param[in] dst_prefix Destination IP prefix.
39 * @return src_fib_index The index/ID of the SRC FIB created.
42 ip_dst_fib_add_route (u32 dst_fib_index, const ip_prefix_t * dst_prefix)
44 fib_node_index_t src_fib_index;
45 fib_prefix_t dst_fib_prefix;
46 fib_node_index_t dst_fei;
48 ASSERT (NULL != dst_prefix);
50 ip_prefix_to_fib_prefix (dst_prefix, &dst_fib_prefix);
53 * lookup the destination prefix in the VRF table and retrieve the
54 * LISP associated data
56 dst_fei = fib_table_lookup_exact_match (dst_fib_index, &dst_fib_prefix);
59 * If the FIB entry is not present, or not LISP sourced, add it
61 if (dst_fei == FIB_NODE_INDEX_INVALID ||
62 NULL == fib_entry_get_source_data (dst_fei, FIB_SOURCE_LISP))
64 dpo_id_t src_lkup_dpo = DPO_INVALID;
66 /* create a new src FIB. */
68 fib_table_create_and_lock (dst_fib_prefix.fp_proto,
70 "LISP-src for [%d,%U]",
72 format_fib_prefix, &dst_fib_prefix);
74 * add src fib default route
76 fib_prefix_t prefix = {
77 .fp_proto = dst_fib_prefix.fp_proto,
79 fib_table_entry_special_dpo_add (src_fib_index, &prefix,
81 FIB_ENTRY_FLAG_EXCLUSIVE,
82 lisp_cp_dpo_get (fib_proto_to_dpo
83 (dst_fib_prefix.fp_proto)));
85 * create a data-path object to perform the source address lookup
88 lookup_dpo_add_or_lock_w_fib_index (src_fib_index,
89 (ip_prefix_version (dst_prefix) ==
93 LOOKUP_INPUT_SRC_ADDR,
94 LOOKUP_TABLE_FROM_CONFIG,
98 * add the entry to the destination FIB that uses the lookup DPO
100 dst_fei = fib_table_entry_special_dpo_add (dst_fib_index,
103 FIB_ENTRY_FLAG_EXCLUSIVE,
107 * the DPO is locked by the FIB entry, and we have no further
110 dpo_unlock (&src_lkup_dpo);
113 * save the SRC FIB index on the entry so we can retrieve it for
116 fib_entry_set_source_data (dst_fei, FIB_SOURCE_LISP, &src_fib_index);
121 * destination FIB entry already present
123 src_fib_index = *(u32 *) fib_entry_get_source_data (dst_fei,
127 return (src_fib_index);
131 * @brief Del route to IP4 or IP6 SD FIB.
133 * Remove routes from both destination and source FIBs.
135 * @param[in] src_fib_index The index/ID of the SRC FIB
136 * @param[in] src_prefix Source IP prefix.
137 * @param[in] dst_fib_index The index/ID of the DST FIB
138 * @param[in] dst_prefix Destination IP prefix.
141 ip_src_dst_fib_del_route (u32 src_fib_index,
142 const ip_prefix_t * src_prefix,
143 u32 dst_fib_index, const ip_prefix_t * dst_prefix)
145 fib_prefix_t dst_fib_prefix, src_fib_prefix;
149 ASSERT (NULL != dst_prefix);
150 ASSERT (NULL != src_prefix);
152 ip_prefix_to_fib_prefix (dst_prefix, &dst_fib_prefix);
153 ip_prefix_to_fib_prefix (src_prefix, &src_fib_prefix);
155 fib_table_entry_delete (src_fib_index, &src_fib_prefix, FIB_SOURCE_LISP);
157 /* check if only default left or empty */
158 fib_prefix_t default_pref = {
159 .fp_proto = dst_fib_prefix.fp_proto
162 if (fib_table_lookup_exact_match (src_fib_index,
163 &default_pref) != FIB_NODE_INDEX_INVALID)
166 n_entries = fib_table_get_num_entries (src_fib_index,
167 src_fib_prefix.fp_proto,
169 if (n_entries == 0 || (have_default && n_entries == 1))
172 * remove src FIB default route
175 fib_table_entry_special_remove (src_fib_index, &default_pref,
179 * there's nothing left now, unlock the source FIB and the
182 fib_table_entry_special_remove (dst_fib_index,
183 &dst_fib_prefix, FIB_SOURCE_LISP);
184 fib_table_unlock (src_fib_index, src_fib_prefix.fp_proto,
190 * @brief Add route to IP4 or IP6 SRC FIB.
192 * Adds a route to in the LISP SRC FIB with the result of the route
193 * being the DPO passed.
195 * @param[in] src_fib_index The index/ID of the SRC FIB
196 * @param[in] src_prefix Source IP prefix.
197 * @param[in] src_dpo The DPO the route will link to.
199 * @return fib index of the inserted prefix
201 static fib_node_index_t
202 ip_src_fib_add_route_w_dpo (u32 src_fib_index,
203 const ip_prefix_t * src_prefix,
204 const dpo_id_t * src_dpo)
206 fib_node_index_t fei = ~0;
207 fib_prefix_t src_fib_prefix;
209 ip_prefix_to_fib_prefix (src_prefix, &src_fib_prefix);
212 * add the entry into the source fib.
214 fib_node_index_t src_fei;
216 src_fei = fib_table_lookup_exact_match (src_fib_index, &src_fib_prefix);
218 if (FIB_NODE_INDEX_INVALID == src_fei ||
219 !fib_entry_is_sourced (src_fei, FIB_SOURCE_LISP))
221 fei = fib_table_entry_special_dpo_add (src_fib_index,
224 FIB_ENTRY_FLAG_EXCLUSIVE,
230 static fib_route_path_t *
231 lisp_gpe_mk_fib_paths (const lisp_fwd_path_t * paths)
233 const lisp_gpe_adjacency_t *ladj;
234 fib_route_path_t *rpaths = NULL;
239 vec_validate (rpaths, vec_len (paths) - 1);
241 best_priority = paths[0].priority;
243 vec_foreach_index (ii, paths)
245 if (paths[0].priority != best_priority)
248 ladj = lisp_gpe_adjacency_get (paths[ii].lisp_adj);
250 ip_address_to_46 (&ladj->remote_rloc, &rpaths[ii].frp_addr, &fp);
252 rpaths[ii].frp_proto = fib_proto_to_dpo (fp);
253 rpaths[ii].frp_sw_if_index = ladj->sw_if_index;
254 rpaths[ii].frp_weight = (paths[ii].weight ? paths[ii].weight : 1);
257 ASSERT (0 != vec_len (rpaths));
263 * @brief Add route to IP4 or IP6 SRC FIB.
265 * Adds a route to in the LISP SRC FIB for the tunnel.
267 * @param[in] src_fib_index The index/ID of the SRC FIB
268 * @param[in] src_prefix Source IP prefix.
269 * @param[in] paths The paths from which to construct the
272 static fib_node_index_t
273 ip_src_fib_add_route (u32 src_fib_index,
274 const ip_prefix_t * src_prefix,
275 const lisp_fwd_path_t * paths)
277 fib_prefix_t src_fib_prefix;
278 fib_route_path_t *rpaths;
280 ip_prefix_to_fib_prefix (src_prefix, &src_fib_prefix);
282 rpaths = lisp_gpe_mk_fib_paths (paths);
284 fib_node_index_t fib_entry_index =
285 fib_table_entry_update (src_fib_index, &src_fib_prefix, FIB_SOURCE_LISP,
286 FIB_ENTRY_FLAG_NONE, rpaths);
288 return fib_entry_index;
292 gpe_native_fwd_add_del_lfe (lisp_gpe_fwd_entry_t * lfe, u8 is_add)
294 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
295 u8 found = 0, ip_version;
297 ip_version = ip_prefix_version (&lfe->key->rmt.ippref);
299 new_lfei = lfe - lgm->lisp_fwd_entry_pool;
300 vec_foreach (lfei, lgm->native_fwd_lfes[ip_version])
302 lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, lfei[0]);
303 if (lfei[0] == new_lfei)
313 vec_add1 (lgm->native_fwd_lfes[ip_version], new_lfei);
318 vec_del1 (lgm->native_fwd_lfes[ip_version], lfei[0]);
323 create_fib_entries (lisp_gpe_fwd_entry_t * lfe)
327 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
330 fib_prefix_t fib_prefix;
331 u8 ip_version = ip_prefix_version (&lfe->key->rmt.ippref);
332 dproto = (ip_version == IP4 ? DPO_PROTO_IP4 : DPO_PROTO_IP6);
336 lfe->src_fib_index = ip_dst_fib_add_route (lfe->eid_fib_index,
337 &lfe->key->rmt.ippref);
338 memcpy (&ippref, &lfe->key->lcl.ippref, sizeof (ippref));
342 lfe->src_fib_index = lfe->eid_fib_index;
343 memcpy (&ippref, &lfe->key->rmt.ippref, sizeof (ippref));
346 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE == lfe->type)
348 dpo_id_t dpo = DPO_INVALID;
352 case LISP_FORWARD_NATIVE:
353 /* TODO handle route overlaps with fib and default route */
354 if (vec_len (lgm->native_fwd_rpath[ip_version]))
356 ip_prefix_to_fib_prefix (&lfe->key->rmt.ippref, &fib_prefix);
357 fib_table_entry_update (lfe->eid_fib_index, &fib_prefix,
358 FIB_SOURCE_LISP, FIB_ENTRY_FLAG_NONE,
359 lgm->native_fwd_rpath[ip_version]);
360 gpe_native_fwd_add_del_lfe (lfe, 1);
364 /* TODO update timers? */
365 case LISP_SEND_MAP_REQUEST:
366 /* insert tunnel that always sends map-request */
367 dpo_copy (&dpo, lisp_cp_dpo_get (dproto));
370 /* for drop fwd entries, just add route, no need to add encap tunnel */
371 dpo_copy (&dpo, drop_dpo_get (dproto));
374 fi = ip_src_fib_add_route_w_dpo (lfe->src_fib_index, &ippref, &dpo);
379 fi = ip_src_fib_add_route (lfe->src_fib_index, &ippref, lfe->paths);
381 fe = fib_entry_get (fi);
382 return fe->fe_lb.dpoi_index;
386 delete_fib_entries (lisp_gpe_fwd_entry_t * lfe)
388 fib_prefix_t dst_fib_prefix;
391 ip_src_dst_fib_del_route (lfe->src_fib_index,
392 &lfe->key->lcl.ippref,
393 lfe->eid_fib_index, &lfe->key->rmt.ippref);
396 ip_prefix_to_fib_prefix (&lfe->key->rmt.ippref, &dst_fib_prefix);
397 fib_table_entry_delete (lfe->src_fib_index, &dst_fib_prefix,
399 gpe_native_fwd_add_del_lfe (lfe, 0);
403 static lisp_gpe_fwd_entry_t *
404 find_fwd_entry (lisp_gpe_main_t * lgm,
405 vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
406 lisp_gpe_fwd_entry_key_t * key)
410 memset (key, 0, sizeof (*key));
412 if (GID_ADDR_IP_PREFIX == gid_address_type (&a->rmt_eid))
415 * the ip version of the source is not set to ip6 when the
416 * source is all zeros. force it.
418 ip_prefix_version (&gid_address_ippref (&a->lcl_eid)) =
419 ip_prefix_version (&gid_address_ippref (&a->rmt_eid));
422 gid_to_dp_address (&a->rmt_eid, &key->rmt);
423 gid_to_dp_address (&a->lcl_eid, &key->lcl);
426 p = hash_get_mem (lgm->lisp_gpe_fwd_entries, key);
430 return (pool_elt_at_index (lgm->lisp_fwd_entry_pool, p[0]));
436 lisp_gpe_fwd_entry_path_sort (void *a1, void *a2)
438 lisp_fwd_path_t *p1 = a1, *p2 = a2;
440 return (p1->priority - p2->priority);
444 lisp_gpe_fwd_entry_mk_paths (lisp_gpe_fwd_entry_t * lfe,
445 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
447 lisp_fwd_path_t *path;
450 vec_validate (lfe->paths, vec_len (a->locator_pairs) - 1);
452 vec_foreach_index (index, a->locator_pairs)
454 path = &lfe->paths[index];
456 path->priority = a->locator_pairs[index].priority;
457 path->weight = a->locator_pairs[index].weight;
460 lisp_gpe_adjacency_find_or_create_and_lock (&a->locator_pairs
462 a->dp_table, lfe->key->vni);
464 vec_sort_with_function (lfe->paths, lisp_gpe_fwd_entry_path_sort);
468 vnet_lisp_gpe_add_fwd_counters (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
471 const lisp_gpe_adjacency_t *ladj;
472 lisp_fwd_path_t *path;
473 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
475 lisp_gpe_fwd_entry_t *lfe;
476 lisp_gpe_fwd_entry_key_t fe_key;
477 lisp_stats_key_t key;
479 lfe = find_fwd_entry (lgm, a, &fe_key);
484 if (LISP_GPE_FWD_ENTRY_TYPE_NORMAL != lfe->type)
487 memset (&key, 0, sizeof (key));
488 key.fwd_entry_index = fwd_entry_index;
490 vec_foreach (path, lfe->paths)
492 ladj = lisp_gpe_adjacency_get (path->lisp_adj);
493 key.tunnel_index = ladj->tunnel_index;
494 lisp_stats_key_t *key_copy = clib_mem_alloc (sizeof (*key_copy));
495 memcpy (key_copy, &key, sizeof (*key_copy));
496 pool_get (lgm->dummy_stats_pool, dummy_elt);
497 hash_set_mem (lgm->lisp_stats_index_by_key, key_copy,
498 dummy_elt - lgm->dummy_stats_pool);
500 vlib_validate_combined_counter (&lgm->counters,
501 dummy_elt - lgm->dummy_stats_pool);
502 vlib_zero_combined_counter (&lgm->counters,
503 dummy_elt - lgm->dummy_stats_pool);
508 * @brief Add/Delete LISP IP forwarding entry.
510 * creation of forwarding entries for IP LISP overlay:
512 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
513 * @param[in] a Parameters for building the forwarding entry.
515 * @return 0 on success.
518 add_ip_fwd_entry (lisp_gpe_main_t * lgm,
519 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
521 lisp_gpe_fwd_entry_key_t key;
522 lisp_gpe_fwd_entry_t *lfe;
523 fib_protocol_t fproto;
525 lfe = find_fwd_entry (lgm, a, &key);
528 /* don't support updates */
529 return VNET_API_ERROR_INVALID_VALUE;
531 pool_get (lgm->lisp_fwd_entry_pool, lfe);
532 memset (lfe, 0, sizeof (*lfe));
533 lfe->key = clib_mem_alloc (sizeof (key));
534 memcpy (lfe->key, &key, sizeof (key));
536 hash_set_mem (lgm->lisp_gpe_fwd_entries, lfe->key,
537 lfe - lgm->lisp_fwd_entry_pool);
538 a->fwd_entry_index = lfe - lgm->lisp_fwd_entry_pool;
540 fproto = (IP4 == ip_prefix_version (&fid_addr_ippref (&lfe->key->rmt)) ?
541 FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6);
543 lfe->type = (a->is_negative ?
544 LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE :
545 LISP_GPE_FWD_ENTRY_TYPE_NORMAL);
546 lfe->tenant = lisp_gpe_tenant_find_or_create (lfe->key->vni);
547 lfe->eid_table_id = a->table_id;
548 lfe->eid_fib_index = fib_table_find_or_create_and_lock (fproto,
551 lfe->is_src_dst = a->is_src_dst;
553 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
555 lisp_gpe_fwd_entry_mk_paths (lfe, a);
559 lfe->action = a->action;
562 lfe->dpoi_index = create_fib_entries (lfe);
567 del_ip_fwd_entry_i (lisp_gpe_main_t * lgm, lisp_gpe_fwd_entry_t * lfe)
569 lisp_fwd_path_t *path;
570 fib_protocol_t fproto;
572 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
574 vec_foreach (path, lfe->paths)
576 lisp_gpe_adjacency_unlock (path->lisp_adj);
580 delete_fib_entries (lfe);
582 fproto = (IP4 == ip_prefix_version (&fid_addr_ippref (&lfe->key->rmt)) ?
583 FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6);
584 fib_table_unlock (lfe->eid_fib_index, fproto, FIB_SOURCE_LISP);
586 hash_unset_mem (lgm->lisp_gpe_fwd_entries, lfe->key);
587 clib_mem_free (lfe->key);
588 pool_put (lgm->lisp_fwd_entry_pool, lfe);
592 * @brief Add/Delete LISP IP forwarding entry.
594 * removal of forwarding entries for IP LISP overlay:
596 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
597 * @param[in] a Parameters for building the forwarding entry.
599 * @return 0 on success.
602 del_ip_fwd_entry (lisp_gpe_main_t * lgm,
603 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
605 lisp_gpe_fwd_entry_key_t key;
606 lisp_gpe_fwd_entry_t *lfe;
608 lfe = find_fwd_entry (lgm, a, &key);
612 return VNET_API_ERROR_INVALID_VALUE;
614 del_ip_fwd_entry_i (lgm, lfe);
620 make_mac_fib_key (BVT (clib_bihash_kv) * kv, u16 bd_index, u8 src_mac[6],
623 kv->key[0] = (((u64) bd_index) << 48) | mac_to_u64 (dst_mac);
624 kv->key[1] = mac_to_u64 (src_mac);
629 * @brief Lookup L2 SD FIB entry
631 * Does a vni + dest + source lookup in the L2 LISP FIB. If the lookup fails
632 * it tries a second time with source set to 0 (i.e., a simple dest lookup).
634 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
635 * @param[in] bd_index Bridge domain index.
636 * @param[in] src_mac Source mac address.
637 * @param[in] dst_mac Destination mac address.
639 * @return index of mapping matching the lookup key.
642 lisp_l2_fib_lookup (lisp_gpe_main_t * lgm, u16 bd_index, u8 src_mac[6],
646 BVT (clib_bihash_kv) kv, value;
648 make_mac_fib_key (&kv, bd_index, src_mac, dst_mac);
649 rv = BV (clib_bihash_search_inline_2) (&lgm->l2_fib, &kv, &value);
651 /* no match, try with src 0, catch all for dst */
655 rv = BV (clib_bihash_search_inline_2) (&lgm->l2_fib, &kv, &value);
662 return lisp_gpe_main.l2_lb_cp_lkup.dpoi_index;
666 * @brief Add/del L2 SD FIB entry
668 * Inserts value in L2 FIB keyed by vni + dest + source. If entry is
669 * overwritten the associated value is returned.
671 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
672 * @param[in] bd_index Bridge domain index.
673 * @param[in] src_mac Source mac address.
674 * @param[in] dst_mac Destination mac address.
675 * @param[in] val Value to add.
676 * @param[in] is_add Add/del flag.
678 * @return ~0 or value of overwritten entry.
681 lisp_l2_fib_add_del_entry (u16 bd_index, u8 src_mac[6],
682 u8 dst_mac[6], const dpo_id_t * dpo, u8 is_add)
684 lisp_gpe_main_t *lgm = &lisp_gpe_main;
685 BVT (clib_bihash_kv) kv, value;
688 make_mac_fib_key (&kv, bd_index, src_mac, dst_mac);
690 if (BV (clib_bihash_search) (&lgm->l2_fib, &kv, &value) == 0)
691 old_val = value.value;
694 BV (clib_bihash_add_del) (&lgm->l2_fib, &kv, 0 /* is_add */ );
697 kv.value = dpo->dpoi_index;
698 BV (clib_bihash_add_del) (&lgm->l2_fib, &kv, 1 /* is_add */ );
703 #define L2_FIB_DEFAULT_HASH_NUM_BUCKETS (64 * 1024)
704 #define L2_FIB_DEFAULT_HASH_MEMORY_SIZE (32<<20)
707 l2_fib_init (lisp_gpe_main_t * lgm)
711 BV (clib_bihash_init) (&lgm->l2_fib, "l2 fib",
712 1 << max_log2 (L2_FIB_DEFAULT_HASH_NUM_BUCKETS),
713 L2_FIB_DEFAULT_HASH_MEMORY_SIZE);
716 * the result from a 'miss' in a L2 Table
718 lbi = load_balance_create (1, DPO_PROTO_ETHERNET, 0);
719 load_balance_set_bucket (lbi, 0, lisp_cp_dpo_get (DPO_PROTO_ETHERNET));
721 dpo_set (&lgm->l2_lb_cp_lkup, DPO_LOAD_BALANCE, DPO_PROTO_ETHERNET, lbi);
725 del_l2_fwd_entry_i (lisp_gpe_main_t * lgm, lisp_gpe_fwd_entry_t * lfe)
727 lisp_fwd_path_t *path;
729 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
731 vec_foreach (path, lfe->paths)
733 lisp_gpe_adjacency_unlock (path->lisp_adj);
735 fib_path_list_child_remove (lfe->l2.path_list_index,
736 lfe->l2.child_index);
739 lisp_l2_fib_add_del_entry (lfe->l2.eid_bd_index,
740 fid_addr_mac (&lfe->key->lcl),
741 fid_addr_mac (&lfe->key->rmt), NULL, 0);
743 hash_unset_mem (lgm->lisp_gpe_fwd_entries, lfe->key);
744 clib_mem_free (lfe->key);
745 pool_put (lgm->lisp_fwd_entry_pool, lfe);
749 * @brief Delete LISP L2 forwarding entry.
751 * Coordinates the removal of forwarding entries for L2 LISP overlay:
753 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
754 * @param[in] a Parameters for building the forwarding entry.
756 * @return 0 on success.
759 del_l2_fwd_entry (lisp_gpe_main_t * lgm,
760 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
762 lisp_gpe_fwd_entry_key_t key;
763 lisp_gpe_fwd_entry_t *lfe;
765 lfe = find_fwd_entry (lgm, a, &key);
768 return VNET_API_ERROR_INVALID_VALUE;
770 del_l2_fwd_entry_i (lgm, lfe);
776 * @brief Construct and insert the forwarding information used by an L2 entry
779 lisp_gpe_l2_update_fwding (lisp_gpe_fwd_entry_t * lfe)
781 lisp_gpe_main_t *lgm = &lisp_gpe_main;
782 dpo_id_t dpo = DPO_INVALID;
784 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
786 fib_path_list_contribute_forwarding (lfe->l2.path_list_index,
787 FIB_FORW_CHAIN_TYPE_ETHERNET,
789 dpo_copy (&dpo, &lfe->l2.dpo);
795 case SEND_MAP_REQUEST:
796 dpo_copy (&dpo, &lgm->l2_lb_cp_lkup);
801 dpo_copy (&dpo, drop_dpo_get (DPO_PROTO_ETHERNET));
805 /* add entry to l2 lisp fib */
806 lisp_l2_fib_add_del_entry (lfe->l2.eid_bd_index,
807 fid_addr_mac (&lfe->key->lcl),
808 fid_addr_mac (&lfe->key->rmt), &dpo, 1);
809 lfe->dpoi_index = dpo.dpoi_index;
815 * @brief Add LISP L2 forwarding entry.
817 * Coordinates the creation of forwarding entries for L2 LISP overlay:
818 * creates lisp-gpe tunnel and injects new entry in Source/Dest L2 FIB.
820 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
821 * @param[in] a Parameters for building the forwarding entry.
823 * @return 0 on success.
826 add_l2_fwd_entry (lisp_gpe_main_t * lgm,
827 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
829 lisp_gpe_fwd_entry_key_t key;
830 bd_main_t *bdm = &bd_main;
831 lisp_gpe_fwd_entry_t *lfe;
834 bd_indexp = hash_get (bdm->bd_index_by_bd_id, a->bd_id);
837 clib_warning ("bridge domain %d doesn't exist", a->bd_id);
841 lfe = find_fwd_entry (lgm, a, &key);
844 /* don't support updates */
845 return VNET_API_ERROR_INVALID_VALUE;
847 pool_get (lgm->lisp_fwd_entry_pool, lfe);
848 memset (lfe, 0, sizeof (*lfe));
849 lfe->key = clib_mem_alloc (sizeof (key));
850 memcpy (lfe->key, &key, sizeof (key));
852 hash_set_mem (lgm->lisp_gpe_fwd_entries, lfe->key,
853 lfe - lgm->lisp_fwd_entry_pool);
854 a->fwd_entry_index = lfe - lgm->lisp_fwd_entry_pool;
856 lfe->type = (a->is_negative ?
857 LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE :
858 LISP_GPE_FWD_ENTRY_TYPE_NORMAL);
859 lfe->l2.eid_bd_id = a->bd_id;
860 lfe->l2.eid_bd_index = bd_indexp[0];
861 lfe->tenant = lisp_gpe_tenant_find_or_create (lfe->key->vni);
863 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
865 fib_route_path_t *rpaths;
868 * Make the sorted array of LISP paths with their resp. adjacency
870 lisp_gpe_fwd_entry_mk_paths (lfe, a);
873 * From the LISP paths, construct a FIB path list that will
874 * contribute a load-balance.
876 rpaths = lisp_gpe_mk_fib_paths (lfe->paths);
878 lfe->l2.path_list_index =
879 fib_path_list_create (FIB_PATH_LIST_FLAG_NONE, rpaths);
882 * become a child of the path-list so we receive updates when
883 * its forwarding state changes. this includes an implicit lock.
885 lfe->l2.child_index =
886 fib_path_list_child_add (lfe->l2.path_list_index,
887 FIB_NODE_TYPE_LISP_GPE_FWD_ENTRY,
888 lfe - lgm->lisp_fwd_entry_pool);
892 lfe->action = a->action;
895 lisp_gpe_l2_update_fwding (lfe);
901 * @brief Lookup NSH SD FIB entry
903 * Does an SPI+SI lookup in the NSH LISP FIB.
905 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
906 * @param[in] spi_si SPI + SI.
908 * @return next node index.
911 lisp_nsh_fib_lookup (lisp_gpe_main_t * lgm, u32 spi_si_net_order)
914 BVT (clib_bihash_kv) kv, value;
916 memset (&kv, 0, sizeof (kv));
917 kv.key[0] = spi_si_net_order;
918 rv = BV (clib_bihash_search_inline_2) (&lgm->nsh_fib, &kv, &value);
922 return lgm->nsh_cp_lkup;
926 lisp_gpe_fwd_entry_t *lfe;
927 lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, value.value);
928 return &lfe->nsh.choice;
933 * @brief Add/del NSH FIB entry
935 * Inserts value in NSH FIB keyed by SPI+SI. If entry is
936 * overwritten the associated value is returned.
938 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
939 * @param[in] spi_si SPI + SI.
940 * @param[in] dpo Load balanced mapped to SPI + SI
942 * @return ~0 or value of overwritten entry.
945 lisp_nsh_fib_add_del_entry (u32 spi_si_host_order, u32 lfei, u8 is_add)
947 lisp_gpe_main_t *lgm = &lisp_gpe_main;
948 BVT (clib_bihash_kv) kv, value;
951 memset (&kv, 0, sizeof (kv));
952 kv.key[0] = clib_host_to_net_u32 (spi_si_host_order);
955 if (BV (clib_bihash_search) (&lgm->nsh_fib, &kv, &value) == 0)
956 old_val = value.value;
959 BV (clib_bihash_add_del) (&lgm->nsh_fib, &kv, 0 /* is_add */ );
963 BV (clib_bihash_add_del) (&lgm->nsh_fib, &kv, 1 /* is_add */ );
968 #define NSH_FIB_DEFAULT_HASH_NUM_BUCKETS (64 * 1024)
969 #define NSH_FIB_DEFAULT_HASH_MEMORY_SIZE (32<<20)
972 nsh_fib_init (lisp_gpe_main_t * lgm)
974 BV (clib_bihash_init) (&lgm->nsh_fib, "nsh fib",
975 1 << max_log2 (NSH_FIB_DEFAULT_HASH_NUM_BUCKETS),
976 NSH_FIB_DEFAULT_HASH_MEMORY_SIZE);
979 * the result from a 'miss' in a NSH Table
981 lgm->nsh_cp_lkup = lisp_cp_dpo_get (DPO_PROTO_NSH);
985 del_nsh_fwd_entry_i (lisp_gpe_main_t * lgm, lisp_gpe_fwd_entry_t * lfe)
987 lisp_fwd_path_t *path;
989 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
991 vec_foreach (path, lfe->paths)
993 lisp_gpe_adjacency_unlock (path->lisp_adj);
995 fib_path_list_child_remove (lfe->nsh.path_list_index,
996 lfe->nsh.child_index);
997 dpo_reset (&lfe->nsh.choice);
1000 lisp_nsh_fib_add_del_entry (fid_addr_nsh (&lfe->key->rmt), (u32) ~ 0, 0);
1002 hash_unset_mem (lgm->lisp_gpe_fwd_entries, lfe->key);
1003 clib_mem_free (lfe->key);
1004 pool_put (lgm->lisp_fwd_entry_pool, lfe);
1008 * @brief Delete LISP NSH forwarding entry.
1010 * Coordinates the removal of forwarding entries for NSH LISP overlay:
1012 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
1013 * @param[in] a Parameters for building the forwarding entry.
1015 * @return 0 on success.
1018 del_nsh_fwd_entry (lisp_gpe_main_t * lgm,
1019 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
1021 lisp_gpe_fwd_entry_key_t key;
1022 lisp_gpe_fwd_entry_t *lfe;
1024 lfe = find_fwd_entry (lgm, a, &key);
1027 return VNET_API_ERROR_INVALID_VALUE;
1029 del_nsh_fwd_entry_i (lgm, lfe);
1035 * @brief Construct and insert the forwarding information used by an NSH entry
1038 lisp_gpe_nsh_update_fwding (lisp_gpe_fwd_entry_t * lfe)
1040 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
1041 dpo_id_t dpo = DPO_INVALID;
1042 vnet_hw_interface_t *hi;
1045 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
1047 fib_path_list_contribute_forwarding (lfe->nsh.path_list_index,
1048 FIB_FORW_CHAIN_TYPE_NSH,
1052 * LISP encap is always the same for this SPI+SI so we do that hash now
1053 * and stack on the choice.
1055 if (DPO_LOAD_BALANCE == lfe->nsh.dpo.dpoi_type)
1057 const dpo_id_t *tmp;
1058 const load_balance_t *lb;
1061 lb = load_balance_get (lfe->nsh.dpo.dpoi_index);
1062 hash = fid_addr_nsh (&lfe->key->rmt) % lb->lb_n_buckets;
1064 load_balance_get_bucket_i (lb, hash & lb->lb_n_buckets_minus_1);
1066 dpo_copy (&dpo, tmp);
1071 switch (lfe->action)
1073 case SEND_MAP_REQUEST:
1074 dpo_copy (&dpo, lgm->nsh_cp_lkup);
1077 case FORWARD_NATIVE:
1079 dpo_copy (&dpo, drop_dpo_get (DPO_PROTO_NSH));
1083 /* We have only one nsh-lisp interface (no NSH virtualization) */
1084 hip = hash_get (lgm->nsh_ifaces.hw_if_index_by_dp_table, 0);
1087 hi = vnet_get_hw_interface (lgm->vnet_main, hip[0]);
1088 dpo_stack_from_node (hi->tx_node_index, &lfe->nsh.choice, &dpo);
1090 /* add entry to nsh lisp fib */
1091 lisp_nsh_fib_add_del_entry (fid_addr_nsh (&lfe->key->rmt),
1092 lfe - lgm->lisp_fwd_entry_pool, 1);
1098 * @brief Add LISP NSH forwarding entry.
1100 * Coordinates the creation of forwarding entries for L2 LISP overlay:
1101 * creates lisp-gpe tunnel and injects new entry in Source/Dest L2 FIB.
1103 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
1104 * @param[in] a Parameters for building the forwarding entry.
1106 * @return 0 on success.
1109 add_nsh_fwd_entry (lisp_gpe_main_t * lgm,
1110 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
1112 lisp_gpe_fwd_entry_key_t key;
1113 lisp_gpe_fwd_entry_t *lfe;
1115 lfe = find_fwd_entry (lgm, a, &key);
1118 /* don't support updates */
1119 return VNET_API_ERROR_INVALID_VALUE;
1121 pool_get (lgm->lisp_fwd_entry_pool, lfe);
1122 memset (lfe, 0, sizeof (*lfe));
1123 lfe->key = clib_mem_alloc (sizeof (key));
1124 memcpy (lfe->key, &key, sizeof (key));
1126 hash_set_mem (lgm->lisp_gpe_fwd_entries, lfe->key,
1127 lfe - lgm->lisp_fwd_entry_pool);
1128 a->fwd_entry_index = lfe - lgm->lisp_fwd_entry_pool;
1130 lfe->type = (a->is_negative ?
1131 LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE :
1132 LISP_GPE_FWD_ENTRY_TYPE_NORMAL);
1135 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
1137 fib_route_path_t *rpaths;
1140 * Make the sorted array of LISP paths with their resp. adjacency
1142 lisp_gpe_fwd_entry_mk_paths (lfe, a);
1145 * From the LISP paths, construct a FIB path list that will
1146 * contribute a load-balance.
1148 rpaths = lisp_gpe_mk_fib_paths (lfe->paths);
1150 lfe->nsh.path_list_index =
1151 fib_path_list_create (FIB_PATH_LIST_FLAG_NONE, rpaths);
1154 * become a child of the path-list so we receive updates when
1155 * its forwarding state changes. this includes an implicit lock.
1157 lfe->nsh.child_index =
1158 fib_path_list_child_add (lfe->nsh.path_list_index,
1159 FIB_NODE_TYPE_LISP_GPE_FWD_ENTRY,
1160 lfe - lgm->lisp_fwd_entry_pool);
1164 lfe->action = a->action;
1167 lisp_gpe_nsh_update_fwding (lfe);
1173 * @brief conver from the embedded fib_node_t struct to the LSIP entry
1175 static lisp_gpe_fwd_entry_t *
1176 lisp_gpe_fwd_entry_from_fib_node (fib_node_t * node)
1178 return ((lisp_gpe_fwd_entry_t *) (((char *) node) -
1179 STRUCT_OFFSET_OF (lisp_gpe_fwd_entry_t,
1184 * @brief Function invoked during a backwalk of the FIB graph
1186 static fib_node_back_walk_rc_t
1187 lisp_gpe_fib_node_back_walk (fib_node_t * node,
1188 fib_node_back_walk_ctx_t * ctx)
1190 lisp_gpe_fwd_entry_t *lfe = lisp_gpe_fwd_entry_from_fib_node (node);
1192 if (fid_addr_type (&lfe->key->rmt) == FID_ADDR_MAC)
1193 lisp_gpe_l2_update_fwding (lfe);
1194 else if (fid_addr_type (&lfe->key->rmt) == FID_ADDR_NSH)
1195 lisp_gpe_nsh_update_fwding (lfe);
1197 return (FIB_NODE_BACK_WALK_CONTINUE);
1201 * @brief Get a fib_node_t struct from the index of a LISP fwd entry
1204 lisp_gpe_fwd_entry_get_fib_node (fib_node_index_t index)
1206 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1207 lisp_gpe_fwd_entry_t *lfe;
1209 lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, index);
1211 return (&(lfe->node));
1215 * @brief An indication from the graph that the last lock has gone
1218 lisp_gpe_fwd_entry_fib_node_last_lock_gone (fib_node_t * node)
1220 /* We don't manage the locks of the LISP objects via the graph, since
1221 * this object has no children. so this is a no-op. */
1225 * @brief Virtual function table to register with FIB for the LISP type
1227 const static fib_node_vft_t lisp_fwd_vft = {
1228 .fnv_get = lisp_gpe_fwd_entry_get_fib_node,
1229 .fnv_last_lock = lisp_gpe_fwd_entry_fib_node_last_lock_gone,
1230 .fnv_back_walk = lisp_gpe_fib_node_back_walk,
1234 * @brief Forwarding entry create/remove dispatcher.
1236 * Calls l2 or l3 forwarding entry add/del function based on input data.
1238 * @param[in] a Forwarding entry parameters.
1239 * @param[out] hw_if_indexp NOT USED
1241 * @return 0 on success.
1244 vnet_lisp_gpe_add_del_fwd_entry (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
1247 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1250 if (vnet_lisp_gpe_enable_disable_status () == 0)
1252 clib_warning ("LISP is disabled!");
1253 return VNET_API_ERROR_LISP_DISABLED;
1256 type = gid_address_type (&a->rmt_eid);
1259 case GID_ADDR_IP_PREFIX:
1261 return add_ip_fwd_entry (lgm, a);
1263 return del_ip_fwd_entry (lgm, a);
1267 return add_l2_fwd_entry (lgm, a);
1269 return del_l2_fwd_entry (lgm, a);
1272 return add_nsh_fwd_entry (lgm, a);
1274 return del_nsh_fwd_entry (lgm, a);
1276 clib_warning ("Forwarding entries for type %d not supported!", type);
1282 vnet_lisp_flush_stats (void)
1284 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
1285 vlib_combined_counter_main_t *cm = &lgm->counters;
1288 for (i = 0; i < vlib_combined_counter_n_counters (cm); i++)
1289 vlib_zero_combined_counter (cm, i);
1295 lisp_del_adj_stats (lisp_gpe_main_t * lgm, u32 fwd_entry_index, u32 ti)
1298 lisp_stats_key_t key;
1303 memset (&key, 0, sizeof (key));
1304 key.fwd_entry_index = fwd_entry_index;
1305 key.tunnel_index = ti;
1307 p = hash_get_mem (lgm->lisp_stats_index_by_key, &key);
1310 s = pool_elt_at_index (lgm->dummy_stats_pool, p[0]);
1311 hp = hash_get_pair (lgm->lisp_stats_index_by_key, &key);
1312 key_copy = (void *) (hp->key);
1313 hash_unset_mem (lgm->lisp_stats_index_by_key, &key);
1314 clib_mem_free (key_copy);
1315 pool_put (lgm->dummy_stats_pool, s);
1320 vnet_lisp_gpe_del_fwd_counters (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
1321 u32 fwd_entry_index)
1323 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1324 lisp_gpe_fwd_entry_key_t fe_key;
1325 lisp_gpe_fwd_entry_t *lfe;
1326 lisp_fwd_path_t *path;
1327 const lisp_gpe_adjacency_t *ladj;
1329 lfe = find_fwd_entry (lgm, a, &fe_key);
1333 if (LISP_GPE_FWD_ENTRY_TYPE_NORMAL != lfe->type)
1336 vec_foreach (path, lfe->paths)
1338 ladj = lisp_gpe_adjacency_get (path->lisp_adj);
1339 lisp_del_adj_stats (lgm, fwd_entry_index, ladj->tunnel_index);
1344 * @brief Flush all the forwrding entries
1347 vnet_lisp_gpe_fwd_entry_flush (void)
1349 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1350 lisp_gpe_fwd_entry_t *lfe;
1353 pool_foreach (lfe, lgm->lisp_fwd_entry_pool,
1355 switch (fid_addr_type(&lfe->key->rmt))
1358 del_l2_fwd_entry_i (lgm, lfe);
1360 case FID_ADDR_IP_PREF:
1361 del_ip_fwd_entry_i (lgm, lfe);
1364 del_nsh_fwd_entry_i (lgm, lfe);
1372 format_lisp_fwd_path (u8 * s, va_list ap)
1374 lisp_fwd_path_t *lfp = va_arg (ap, lisp_fwd_path_t *);
1376 s = format (s, "weight:%d ", lfp->weight);
1377 s = format (s, "adj:[%U]\n",
1378 format_lisp_gpe_adjacency,
1379 lisp_gpe_adjacency_get (lfp->lisp_adj),
1380 LISP_GPE_ADJ_FORMAT_FLAG_NONE);
1385 typedef enum lisp_gpe_fwd_entry_format_flag_t_
1387 LISP_GPE_FWD_ENTRY_FORMAT_NONE = (0 << 0),
1388 LISP_GPE_FWD_ENTRY_FORMAT_DETAIL = (1 << 1),
1389 } lisp_gpe_fwd_entry_format_flag_t;
1393 format_lisp_gpe_fwd_entry (u8 * s, va_list ap)
1395 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1396 lisp_gpe_fwd_entry_t *lfe = va_arg (ap, lisp_gpe_fwd_entry_t *);
1397 lisp_gpe_fwd_entry_format_flag_t flags =
1398 va_arg (ap, lisp_gpe_fwd_entry_format_flag_t);
1400 s = format (s, "VNI:%d VRF:%d EID: %U -> %U [index:%d]",
1401 lfe->key->vni, lfe->eid_table_id,
1402 format_fid_address, &lfe->key->lcl,
1403 format_fid_address, &lfe->key->rmt,
1404 lfe - lgm->lisp_fwd_entry_pool);
1406 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE == lfe->type)
1408 s = format (s, "\n Negative - action:%U",
1409 format_negative_mapping_action, lfe->action);
1413 lisp_fwd_path_t *path;
1415 s = format (s, "\n via:");
1416 vec_foreach (path, lfe->paths)
1418 s = format (s, "\n %U", format_lisp_fwd_path, path);
1422 if (flags & LISP_GPE_FWD_ENTRY_FORMAT_DETAIL)
1424 switch (fid_addr_type (&lfe->key->rmt))
1427 s = format (s, " fib-path-list:%d\n", lfe->l2.path_list_index);
1428 s = format (s, " dpo:%U\n", format_dpo_id, &lfe->l2.dpo, 0);
1431 s = format (s, " fib-path-list:%d\n", lfe->nsh.path_list_index);
1432 s = format (s, " dpo:%U\n", format_dpo_id, &lfe->nsh.dpo, 0);
1434 case FID_ADDR_IP_PREF:
1442 static clib_error_t *
1443 lisp_gpe_fwd_entry_show (vlib_main_t * vm,
1444 unformat_input_t * input, vlib_cli_command_t * cmd)
1446 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1447 lisp_gpe_fwd_entry_t *lfe;
1451 if (unformat (input, "vni %d", &vni))
1453 else if (unformat (input, "%d", &index))
1455 if (!pool_is_free_index (lgm->lisp_fwd_entry_pool, index))
1457 lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, index);
1459 vlib_cli_output (vm, "[%d@] %U",
1461 format_lisp_gpe_fwd_entry, lfe,
1462 LISP_GPE_FWD_ENTRY_FORMAT_DETAIL);
1466 vlib_cli_output (vm, "entry %d invalid", index);
1473 pool_foreach (lfe, lgm->lisp_fwd_entry_pool,
1476 (lfe->key->vni == vni))
1477 vlib_cli_output (vm, "%U", format_lisp_gpe_fwd_entry, lfe,
1478 LISP_GPE_FWD_ENTRY_FORMAT_NONE);
1486 VLIB_CLI_COMMAND (lisp_gpe_fwd_entry_show_command, static) = {
1487 .path = "show gpe entry",
1488 .short_help = "show gpe entry vni <vni> vrf <vrf> [leid <leid>] reid <reid>",
1489 .function = lisp_gpe_fwd_entry_show,
1494 lisp_gpe_fwd_entry_init (vlib_main_t * vm)
1496 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1497 clib_error_t *error = NULL;
1499 if ((error = vlib_call_init_function (vm, lisp_cp_dpo_module_init)))
1505 fib_node_register_type (FIB_NODE_TYPE_LISP_GPE_FWD_ENTRY, &lisp_fwd_vft);
1511 vnet_lisp_gpe_get_fwd_entry_vnis (void)
1513 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
1514 lisp_gpe_fwd_entry_t *lfe;
1518 pool_foreach (lfe, lgm->lisp_fwd_entry_pool,
1520 hash_set (vnis, lfe->key->vni, 0);
1527 lisp_api_gpe_fwd_entry_t *
1528 vnet_lisp_gpe_fwd_entries_get_by_vni (u32 vni)
1530 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1531 lisp_gpe_fwd_entry_t *lfe;
1532 lisp_api_gpe_fwd_entry_t *entries = 0, e;
1535 pool_foreach (lfe, lgm->lisp_fwd_entry_pool,
1537 if (lfe->key->vni == vni)
1539 memset (&e, 0, sizeof (e));
1540 e.dp_table = lfe->eid_table_id;
1541 e.vni = lfe->key->vni;
1542 if (lfe->type == LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE)
1543 e.action = lfe->action;
1544 e.fwd_entry_index = lfe - lgm->lisp_fwd_entry_pool;
1545 memcpy (&e.reid, &lfe->key->rmt, sizeof (e.reid));
1546 memcpy (&e.leid, &lfe->key->lcl, sizeof (e.leid));
1547 vec_add1 (entries, e);
1556 vnet_lisp_gpe_get_fwd_stats (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
1559 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
1560 lisp_gpe_fwd_entry_t *lfe;
1561 lisp_gpe_fwd_entry_key_t unused;
1563 lfe = find_fwd_entry (lgm, a, &unused);
1567 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE == lfe->type)
1570 if (~0 == lfe->dpoi_index)
1573 vlib_get_combined_counter (&load_balance_main.lbm_to_counters,
1574 lfe->dpoi_index, c);
1578 VLIB_INIT_FUNCTION (lisp_gpe_fwd_entry_init);
1581 * fd.io coding-style-patch-verification: ON
1584 * eval: (c-set-style "gnu")