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,
69 "LISP-src for [%d,%U]",
71 format_fib_prefix, &dst_fib_prefix);
73 * add src fib default route
75 fib_prefix_t prefix = {
76 .fp_proto = dst_fib_prefix.fp_proto,
78 fib_table_entry_special_dpo_add (src_fib_index, &prefix,
80 FIB_ENTRY_FLAG_EXCLUSIVE,
81 lisp_cp_dpo_get (fib_proto_to_dpo
82 (dst_fib_prefix.fp_proto)));
84 * create a data-path object to perform the source address lookup
87 lookup_dpo_add_or_lock_w_fib_index (src_fib_index,
88 (ip_prefix_version (dst_prefix) ==
92 LOOKUP_INPUT_SRC_ADDR,
93 LOOKUP_TABLE_FROM_CONFIG,
97 * add the entry to the destination FIB that uses the lookup DPO
99 dst_fei = fib_table_entry_special_dpo_add (dst_fib_index,
102 FIB_ENTRY_FLAG_EXCLUSIVE,
106 * the DPO is locked by the FIB entry, and we have no further
109 dpo_unlock (&src_lkup_dpo);
112 * save the SRC FIB index on the entry so we can retrieve it for
115 fib_entry_set_source_data (dst_fei, FIB_SOURCE_LISP, &src_fib_index);
120 * destination FIB entry already present
122 src_fib_index = *(u32 *) fib_entry_get_source_data (dst_fei,
126 return (src_fib_index);
130 * @brief Del route to IP4 or IP6 SD FIB.
132 * Remove routes from both destination and source FIBs.
134 * @param[in] src_fib_index The index/ID of the SRC FIB
135 * @param[in] src_prefix Source IP prefix.
136 * @param[in] dst_fib_index The index/ID of the DST FIB
137 * @param[in] dst_prefix Destination IP prefix.
140 ip_src_dst_fib_del_route (u32 src_fib_index,
141 const ip_prefix_t * src_prefix,
142 u32 dst_fib_index, const ip_prefix_t * dst_prefix)
144 fib_prefix_t dst_fib_prefix, src_fib_prefix;
148 ASSERT (NULL != dst_prefix);
149 ASSERT (NULL != src_prefix);
151 ip_prefix_to_fib_prefix (dst_prefix, &dst_fib_prefix);
152 ip_prefix_to_fib_prefix (src_prefix, &src_fib_prefix);
154 fib_table_entry_delete (src_fib_index, &src_fib_prefix, FIB_SOURCE_LISP);
156 /* check if only default left or empty */
157 fib_prefix_t default_pref = {
158 .fp_proto = dst_fib_prefix.fp_proto
161 if (fib_table_lookup_exact_match (src_fib_index,
162 &default_pref) != FIB_NODE_INDEX_INVALID)
165 n_entries = fib_table_get_num_entries (src_fib_index,
166 src_fib_prefix.fp_proto,
168 if (n_entries == 0 || (have_default && n_entries == 1))
171 * remove src FIB default route
174 fib_table_entry_special_remove (src_fib_index, &default_pref,
178 * there's nothing left now, unlock the source FIB and the
181 fib_table_entry_special_remove (dst_fib_index,
182 &dst_fib_prefix, FIB_SOURCE_LISP);
183 fib_table_unlock (src_fib_index, src_fib_prefix.fp_proto);
188 * @brief Add route to IP4 or IP6 SRC FIB.
190 * Adds a route to in the LISP SRC FIB with the result of the route
191 * being the DPO passed.
193 * @param[in] src_fib_index The index/ID of the SRC FIB
194 * @param[in] src_prefix Source IP prefix.
195 * @param[in] src_dpo The DPO the route will link to.
197 * @return fib index of the inserted prefix
199 static fib_node_index_t
200 ip_src_fib_add_route_w_dpo (u32 src_fib_index,
201 const ip_prefix_t * src_prefix,
202 const dpo_id_t * src_dpo)
204 fib_node_index_t fei = ~0;
205 fib_prefix_t src_fib_prefix;
207 ip_prefix_to_fib_prefix (src_prefix, &src_fib_prefix);
210 * add the entry into the source fib.
212 fib_node_index_t src_fei;
214 src_fei = fib_table_lookup_exact_match (src_fib_index, &src_fib_prefix);
216 if (FIB_NODE_INDEX_INVALID == src_fei ||
217 !fib_entry_is_sourced (src_fei, FIB_SOURCE_LISP))
219 fei = fib_table_entry_special_dpo_add (src_fib_index,
222 FIB_ENTRY_FLAG_EXCLUSIVE,
228 static fib_route_path_t *
229 lisp_gpe_mk_fib_paths (const lisp_fwd_path_t * paths)
231 const lisp_gpe_adjacency_t *ladj;
232 fib_route_path_t *rpaths = NULL;
237 vec_validate (rpaths, vec_len (paths) - 1);
239 best_priority = paths[0].priority;
241 vec_foreach_index (ii, paths)
243 if (paths[0].priority != best_priority)
246 ladj = lisp_gpe_adjacency_get (paths[ii].lisp_adj);
248 ip_address_to_46 (&ladj->remote_rloc, &rpaths[ii].frp_addr, &fp);
250 rpaths[ii].frp_proto = fib_proto_to_dpo (fp);
251 rpaths[ii].frp_sw_if_index = ladj->sw_if_index;
252 rpaths[ii].frp_weight = (paths[ii].weight ? paths[ii].weight : 1);
255 ASSERT (0 != vec_len (rpaths));
261 * @brief Add route to IP4 or IP6 SRC FIB.
263 * Adds a route to in the LISP SRC FIB for the tunnel.
265 * @param[in] src_fib_index The index/ID of the SRC FIB
266 * @param[in] src_prefix Source IP prefix.
267 * @param[in] paths The paths from which to construct the
270 static fib_node_index_t
271 ip_src_fib_add_route (u32 src_fib_index,
272 const ip_prefix_t * src_prefix,
273 const lisp_fwd_path_t * paths)
275 fib_prefix_t src_fib_prefix;
276 fib_route_path_t *rpaths;
278 ip_prefix_to_fib_prefix (src_prefix, &src_fib_prefix);
280 rpaths = lisp_gpe_mk_fib_paths (paths);
282 fib_node_index_t fib_entry_index =
283 fib_table_entry_update (src_fib_index, &src_fib_prefix, FIB_SOURCE_LISP,
284 FIB_ENTRY_FLAG_NONE, rpaths);
286 return fib_entry_index;
290 gpe_native_fwd_add_del_lfe (lisp_gpe_fwd_entry_t * lfe, u8 is_add)
292 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
293 u8 found = 0, ip_version;
295 ip_version = ip_prefix_version (&lfe->key->rmt.ippref);
297 new_lfei = lfe - lgm->lisp_fwd_entry_pool;
298 vec_foreach (lfei, lgm->native_fwd_lfes[ip_version])
300 lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, lfei[0]);
301 if (lfei[0] == new_lfei)
311 vec_add1 (lgm->native_fwd_lfes[ip_version], new_lfei);
316 vec_del1 (lgm->native_fwd_lfes[ip_version], lfei[0]);
321 create_fib_entries (lisp_gpe_fwd_entry_t * lfe)
325 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
328 fib_prefix_t fib_prefix;
329 u8 ip_version = ip_prefix_version (&lfe->key->rmt.ippref);
330 dproto = (ip_version == IP4 ? DPO_PROTO_IP4 : DPO_PROTO_IP6);
334 lfe->src_fib_index = ip_dst_fib_add_route (lfe->eid_fib_index,
335 &lfe->key->rmt.ippref);
336 memcpy (&ippref, &lfe->key->lcl.ippref, sizeof (ippref));
340 lfe->src_fib_index = lfe->eid_fib_index;
341 memcpy (&ippref, &lfe->key->rmt.ippref, sizeof (ippref));
344 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE == lfe->type)
346 dpo_id_t dpo = DPO_INVALID;
350 case LISP_FORWARD_NATIVE:
351 /* TODO handle route overlaps with fib and default route */
352 if (vec_len (lgm->native_fwd_rpath[ip_version]))
354 ip_prefix_to_fib_prefix (&lfe->key->rmt.ippref, &fib_prefix);
355 fib_table_entry_update (lfe->eid_fib_index, &fib_prefix,
356 FIB_SOURCE_LISP, FIB_ENTRY_FLAG_NONE,
357 lgm->native_fwd_rpath[ip_version]);
358 gpe_native_fwd_add_del_lfe (lfe, 1);
362 /* TODO update timers? */
363 case LISP_SEND_MAP_REQUEST:
364 /* insert tunnel that always sends map-request */
365 dpo_copy (&dpo, lisp_cp_dpo_get (dproto));
368 /* for drop fwd entries, just add route, no need to add encap tunnel */
369 dpo_copy (&dpo, drop_dpo_get (dproto));
372 fi = ip_src_fib_add_route_w_dpo (lfe->src_fib_index, &ippref, &dpo);
377 fi = ip_src_fib_add_route (lfe->src_fib_index, &ippref, lfe->paths);
379 fe = fib_entry_get (fi);
380 return fe->fe_lb.dpoi_index;
384 delete_fib_entries (lisp_gpe_fwd_entry_t * lfe)
386 fib_prefix_t dst_fib_prefix;
389 ip_src_dst_fib_del_route (lfe->src_fib_index,
390 &lfe->key->lcl.ippref,
391 lfe->eid_fib_index, &lfe->key->rmt.ippref);
394 ip_prefix_to_fib_prefix (&lfe->key->rmt.ippref, &dst_fib_prefix);
395 fib_table_entry_delete (lfe->src_fib_index, &dst_fib_prefix,
397 gpe_native_fwd_add_del_lfe (lfe, 0);
401 static lisp_gpe_fwd_entry_t *
402 find_fwd_entry (lisp_gpe_main_t * lgm,
403 vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
404 lisp_gpe_fwd_entry_key_t * key)
408 memset (key, 0, sizeof (*key));
410 if (GID_ADDR_IP_PREFIX == gid_address_type (&a->rmt_eid))
413 * the ip version of the source is not set to ip6 when the
414 * source is all zeros. force it.
416 ip_prefix_version (&gid_address_ippref (&a->lcl_eid)) =
417 ip_prefix_version (&gid_address_ippref (&a->rmt_eid));
420 gid_to_dp_address (&a->rmt_eid, &key->rmt);
421 gid_to_dp_address (&a->lcl_eid, &key->lcl);
424 p = hash_get_mem (lgm->lisp_gpe_fwd_entries, key);
428 return (pool_elt_at_index (lgm->lisp_fwd_entry_pool, p[0]));
434 lisp_gpe_fwd_entry_path_sort (void *a1, void *a2)
436 lisp_fwd_path_t *p1 = a1, *p2 = a2;
438 return (p1->priority - p2->priority);
442 lisp_gpe_fwd_entry_mk_paths (lisp_gpe_fwd_entry_t * lfe,
443 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
445 lisp_fwd_path_t *path;
448 vec_validate (lfe->paths, vec_len (a->locator_pairs) - 1);
450 vec_foreach_index (index, a->locator_pairs)
452 path = &lfe->paths[index];
454 path->priority = a->locator_pairs[index].priority;
455 path->weight = a->locator_pairs[index].weight;
458 lisp_gpe_adjacency_find_or_create_and_lock (&a->locator_pairs
460 a->dp_table, lfe->key->vni);
462 vec_sort_with_function (lfe->paths, lisp_gpe_fwd_entry_path_sort);
466 vnet_lisp_gpe_add_fwd_counters (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
469 const lisp_gpe_adjacency_t *ladj;
470 lisp_fwd_path_t *path;
471 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
473 lisp_gpe_fwd_entry_t *lfe;
474 lisp_gpe_fwd_entry_key_t fe_key;
475 lisp_stats_key_t key;
477 lfe = find_fwd_entry (lgm, a, &fe_key);
482 if (LISP_GPE_FWD_ENTRY_TYPE_NORMAL != lfe->type)
485 memset (&key, 0, sizeof (key));
486 key.fwd_entry_index = fwd_entry_index;
488 vec_foreach (path, lfe->paths)
490 ladj = lisp_gpe_adjacency_get (path->lisp_adj);
491 key.tunnel_index = ladj->tunnel_index;
492 lisp_stats_key_t *key_copy = clib_mem_alloc (sizeof (*key_copy));
493 memcpy (key_copy, &key, sizeof (*key_copy));
494 pool_get (lgm->dummy_stats_pool, dummy_elt);
495 hash_set_mem (lgm->lisp_stats_index_by_key, key_copy,
496 dummy_elt - lgm->dummy_stats_pool);
498 vlib_validate_combined_counter (&lgm->counters,
499 dummy_elt - lgm->dummy_stats_pool);
500 vlib_zero_combined_counter (&lgm->counters,
501 dummy_elt - lgm->dummy_stats_pool);
506 * @brief Add/Delete LISP IP forwarding entry.
508 * creation of forwarding entries for IP LISP overlay:
510 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
511 * @param[in] a Parameters for building the forwarding entry.
513 * @return 0 on success.
516 add_ip_fwd_entry (lisp_gpe_main_t * lgm,
517 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
519 lisp_gpe_fwd_entry_key_t key;
520 lisp_gpe_fwd_entry_t *lfe;
521 fib_protocol_t fproto;
523 lfe = find_fwd_entry (lgm, a, &key);
526 /* don't support updates */
527 return VNET_API_ERROR_INVALID_VALUE;
529 pool_get (lgm->lisp_fwd_entry_pool, lfe);
530 memset (lfe, 0, sizeof (*lfe));
531 lfe->key = clib_mem_alloc (sizeof (key));
532 memcpy (lfe->key, &key, sizeof (key));
534 hash_set_mem (lgm->lisp_gpe_fwd_entries, lfe->key,
535 lfe - lgm->lisp_fwd_entry_pool);
536 a->fwd_entry_index = lfe - lgm->lisp_fwd_entry_pool;
538 fproto = (IP4 == ip_prefix_version (&fid_addr_ippref (&lfe->key->rmt)) ?
539 FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6);
541 lfe->type = (a->is_negative ?
542 LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE :
543 LISP_GPE_FWD_ENTRY_TYPE_NORMAL);
544 lfe->tenant = lisp_gpe_tenant_find_or_create (lfe->key->vni);
545 lfe->eid_table_id = a->table_id;
546 lfe->eid_fib_index = fib_table_find_or_create_and_lock (fproto,
548 lfe->is_src_dst = a->is_src_dst;
550 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
552 lisp_gpe_fwd_entry_mk_paths (lfe, a);
556 lfe->action = a->action;
559 lfe->dpoi_index = create_fib_entries (lfe);
564 del_ip_fwd_entry_i (lisp_gpe_main_t * lgm, lisp_gpe_fwd_entry_t * lfe)
566 lisp_fwd_path_t *path;
567 fib_protocol_t fproto;
569 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
571 vec_foreach (path, lfe->paths)
573 lisp_gpe_adjacency_unlock (path->lisp_adj);
577 delete_fib_entries (lfe);
579 fproto = (IP4 == ip_prefix_version (&fid_addr_ippref (&lfe->key->rmt)) ?
580 FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6);
581 fib_table_unlock (lfe->eid_fib_index, fproto);
583 hash_unset_mem (lgm->lisp_gpe_fwd_entries, lfe->key);
584 clib_mem_free (lfe->key);
585 pool_put (lgm->lisp_fwd_entry_pool, lfe);
589 * @brief Add/Delete LISP IP forwarding entry.
591 * removal of forwarding entries for IP LISP overlay:
593 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
594 * @param[in] a Parameters for building the forwarding entry.
596 * @return 0 on success.
599 del_ip_fwd_entry (lisp_gpe_main_t * lgm,
600 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
602 lisp_gpe_fwd_entry_key_t key;
603 lisp_gpe_fwd_entry_t *lfe;
605 lfe = find_fwd_entry (lgm, a, &key);
609 return VNET_API_ERROR_INVALID_VALUE;
611 del_ip_fwd_entry_i (lgm, lfe);
617 make_mac_fib_key (BVT (clib_bihash_kv) * kv, u16 bd_index, u8 src_mac[6],
620 kv->key[0] = (((u64) bd_index) << 48) | mac_to_u64 (dst_mac);
621 kv->key[1] = mac_to_u64 (src_mac);
626 * @brief Lookup L2 SD FIB entry
628 * Does a vni + dest + source lookup in the L2 LISP FIB. If the lookup fails
629 * it tries a second time with source set to 0 (i.e., a simple dest lookup).
631 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
632 * @param[in] bd_index Bridge domain index.
633 * @param[in] src_mac Source mac address.
634 * @param[in] dst_mac Destination mac address.
636 * @return index of mapping matching the lookup key.
639 lisp_l2_fib_lookup (lisp_gpe_main_t * lgm, u16 bd_index, u8 src_mac[6],
643 BVT (clib_bihash_kv) kv, value;
645 make_mac_fib_key (&kv, bd_index, src_mac, dst_mac);
646 rv = BV (clib_bihash_search_inline_2) (&lgm->l2_fib, &kv, &value);
648 /* no match, try with src 0, catch all for dst */
652 rv = BV (clib_bihash_search_inline_2) (&lgm->l2_fib, &kv, &value);
659 return lisp_gpe_main.l2_lb_cp_lkup.dpoi_index;
663 * @brief Add/del L2 SD FIB entry
665 * Inserts value in L2 FIB keyed by vni + dest + source. If entry is
666 * overwritten the associated value is returned.
668 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
669 * @param[in] bd_index Bridge domain index.
670 * @param[in] src_mac Source mac address.
671 * @param[in] dst_mac Destination mac address.
672 * @param[in] val Value to add.
673 * @param[in] is_add Add/del flag.
675 * @return ~0 or value of overwritten entry.
678 lisp_l2_fib_add_del_entry (u16 bd_index, u8 src_mac[6],
679 u8 dst_mac[6], const dpo_id_t * dpo, u8 is_add)
681 lisp_gpe_main_t *lgm = &lisp_gpe_main;
682 BVT (clib_bihash_kv) kv, value;
685 make_mac_fib_key (&kv, bd_index, src_mac, dst_mac);
687 if (BV (clib_bihash_search) (&lgm->l2_fib, &kv, &value) == 0)
688 old_val = value.value;
691 BV (clib_bihash_add_del) (&lgm->l2_fib, &kv, 0 /* is_add */ );
694 kv.value = dpo->dpoi_index;
695 BV (clib_bihash_add_del) (&lgm->l2_fib, &kv, 1 /* is_add */ );
700 #define L2_FIB_DEFAULT_HASH_NUM_BUCKETS (64 * 1024)
701 #define L2_FIB_DEFAULT_HASH_MEMORY_SIZE (32<<20)
704 l2_fib_init (lisp_gpe_main_t * lgm)
708 BV (clib_bihash_init) (&lgm->l2_fib, "l2 fib",
709 1 << max_log2 (L2_FIB_DEFAULT_HASH_NUM_BUCKETS),
710 L2_FIB_DEFAULT_HASH_MEMORY_SIZE);
713 * the result from a 'miss' in a L2 Table
715 lbi = load_balance_create (1, DPO_PROTO_ETHERNET, 0);
716 load_balance_set_bucket (lbi, 0, lisp_cp_dpo_get (DPO_PROTO_ETHERNET));
718 dpo_set (&lgm->l2_lb_cp_lkup, DPO_LOAD_BALANCE, DPO_PROTO_ETHERNET, lbi);
722 del_l2_fwd_entry_i (lisp_gpe_main_t * lgm, lisp_gpe_fwd_entry_t * lfe)
724 lisp_fwd_path_t *path;
726 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
728 vec_foreach (path, lfe->paths)
730 lisp_gpe_adjacency_unlock (path->lisp_adj);
732 fib_path_list_child_remove (lfe->l2.path_list_index,
733 lfe->l2.child_index);
736 lisp_l2_fib_add_del_entry (lfe->l2.eid_bd_index,
737 fid_addr_mac (&lfe->key->lcl),
738 fid_addr_mac (&lfe->key->rmt), NULL, 0);
740 hash_unset_mem (lgm->lisp_gpe_fwd_entries, lfe->key);
741 clib_mem_free (lfe->key);
742 pool_put (lgm->lisp_fwd_entry_pool, lfe);
746 * @brief Delete LISP L2 forwarding entry.
748 * Coordinates the removal of forwarding entries for L2 LISP overlay:
750 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
751 * @param[in] a Parameters for building the forwarding entry.
753 * @return 0 on success.
756 del_l2_fwd_entry (lisp_gpe_main_t * lgm,
757 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
759 lisp_gpe_fwd_entry_key_t key;
760 lisp_gpe_fwd_entry_t *lfe;
762 lfe = find_fwd_entry (lgm, a, &key);
765 return VNET_API_ERROR_INVALID_VALUE;
767 del_l2_fwd_entry_i (lgm, lfe);
773 * @brief Construct and insert the forwarding information used by an L2 entry
776 lisp_gpe_l2_update_fwding (lisp_gpe_fwd_entry_t * lfe)
778 lisp_gpe_main_t *lgm = &lisp_gpe_main;
779 dpo_id_t dpo = DPO_INVALID;
781 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
783 fib_path_list_contribute_forwarding (lfe->l2.path_list_index,
784 FIB_FORW_CHAIN_TYPE_ETHERNET,
786 dpo_copy (&dpo, &lfe->l2.dpo);
792 case SEND_MAP_REQUEST:
793 dpo_copy (&dpo, &lgm->l2_lb_cp_lkup);
798 dpo_copy (&dpo, drop_dpo_get (DPO_PROTO_ETHERNET));
802 /* add entry to l2 lisp fib */
803 lisp_l2_fib_add_del_entry (lfe->l2.eid_bd_index,
804 fid_addr_mac (&lfe->key->lcl),
805 fid_addr_mac (&lfe->key->rmt), &dpo, 1);
806 lfe->dpoi_index = dpo.dpoi_index;
812 * @brief Add LISP L2 forwarding entry.
814 * Coordinates the creation of forwarding entries for L2 LISP overlay:
815 * creates lisp-gpe tunnel and injects new entry in Source/Dest L2 FIB.
817 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
818 * @param[in] a Parameters for building the forwarding entry.
820 * @return 0 on success.
823 add_l2_fwd_entry (lisp_gpe_main_t * lgm,
824 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
826 lisp_gpe_fwd_entry_key_t key;
827 bd_main_t *bdm = &bd_main;
828 lisp_gpe_fwd_entry_t *lfe;
831 bd_indexp = hash_get (bdm->bd_index_by_bd_id, a->bd_id);
834 clib_warning ("bridge domain %d doesn't exist", a->bd_id);
838 lfe = find_fwd_entry (lgm, a, &key);
841 /* don't support updates */
842 return VNET_API_ERROR_INVALID_VALUE;
844 pool_get (lgm->lisp_fwd_entry_pool, lfe);
845 memset (lfe, 0, sizeof (*lfe));
846 lfe->key = clib_mem_alloc (sizeof (key));
847 memcpy (lfe->key, &key, sizeof (key));
849 hash_set_mem (lgm->lisp_gpe_fwd_entries, lfe->key,
850 lfe - lgm->lisp_fwd_entry_pool);
851 a->fwd_entry_index = lfe - lgm->lisp_fwd_entry_pool;
853 lfe->type = (a->is_negative ?
854 LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE :
855 LISP_GPE_FWD_ENTRY_TYPE_NORMAL);
856 lfe->l2.eid_bd_id = a->bd_id;
857 lfe->l2.eid_bd_index = bd_indexp[0];
858 lfe->tenant = lisp_gpe_tenant_find_or_create (lfe->key->vni);
860 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
862 fib_route_path_t *rpaths;
865 * Make the sorted array of LISP paths with their resp. adjacency
867 lisp_gpe_fwd_entry_mk_paths (lfe, a);
870 * From the LISP paths, construct a FIB path list that will
871 * contribute a load-balance.
873 rpaths = lisp_gpe_mk_fib_paths (lfe->paths);
875 lfe->l2.path_list_index =
876 fib_path_list_create (FIB_PATH_LIST_FLAG_NONE, rpaths);
879 * become a child of the path-list so we receive updates when
880 * its forwarding state changes. this includes an implicit lock.
882 lfe->l2.child_index =
883 fib_path_list_child_add (lfe->l2.path_list_index,
884 FIB_NODE_TYPE_LISP_GPE_FWD_ENTRY,
885 lfe - lgm->lisp_fwd_entry_pool);
889 lfe->action = a->action;
892 lisp_gpe_l2_update_fwding (lfe);
898 * @brief Lookup NSH SD FIB entry
900 * Does an SPI+SI lookup in the NSH LISP FIB.
902 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
903 * @param[in] spi_si SPI + SI.
905 * @return next node index.
908 lisp_nsh_fib_lookup (lisp_gpe_main_t * lgm, u32 spi_si_net_order)
911 BVT (clib_bihash_kv) kv, value;
913 memset (&kv, 0, sizeof (kv));
914 kv.key[0] = spi_si_net_order;
915 rv = BV (clib_bihash_search_inline_2) (&lgm->nsh_fib, &kv, &value);
919 return lgm->nsh_cp_lkup;
923 lisp_gpe_fwd_entry_t *lfe;
924 lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, value.value);
925 return &lfe->nsh.choice;
930 * @brief Add/del NSH FIB entry
932 * Inserts value in NSH FIB keyed by SPI+SI. If entry is
933 * overwritten the associated value is returned.
935 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
936 * @param[in] spi_si SPI + SI.
937 * @param[in] dpo Load balanced mapped to SPI + SI
939 * @return ~0 or value of overwritten entry.
942 lisp_nsh_fib_add_del_entry (u32 spi_si_host_order, u32 lfei, u8 is_add)
944 lisp_gpe_main_t *lgm = &lisp_gpe_main;
945 BVT (clib_bihash_kv) kv, value;
948 memset (&kv, 0, sizeof (kv));
949 kv.key[0] = clib_host_to_net_u32 (spi_si_host_order);
952 if (BV (clib_bihash_search) (&lgm->nsh_fib, &kv, &value) == 0)
953 old_val = value.value;
956 BV (clib_bihash_add_del) (&lgm->nsh_fib, &kv, 0 /* is_add */ );
960 BV (clib_bihash_add_del) (&lgm->nsh_fib, &kv, 1 /* is_add */ );
965 #define NSH_FIB_DEFAULT_HASH_NUM_BUCKETS (64 * 1024)
966 #define NSH_FIB_DEFAULT_HASH_MEMORY_SIZE (32<<20)
969 nsh_fib_init (lisp_gpe_main_t * lgm)
971 BV (clib_bihash_init) (&lgm->nsh_fib, "nsh fib",
972 1 << max_log2 (NSH_FIB_DEFAULT_HASH_NUM_BUCKETS),
973 NSH_FIB_DEFAULT_HASH_MEMORY_SIZE);
976 * the result from a 'miss' in a NSH Table
978 lgm->nsh_cp_lkup = lisp_cp_dpo_get (DPO_PROTO_NSH);
982 del_nsh_fwd_entry_i (lisp_gpe_main_t * lgm, lisp_gpe_fwd_entry_t * lfe)
984 lisp_fwd_path_t *path;
986 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
988 vec_foreach (path, lfe->paths)
990 lisp_gpe_adjacency_unlock (path->lisp_adj);
992 fib_path_list_child_remove (lfe->nsh.path_list_index,
993 lfe->nsh.child_index);
994 dpo_reset (&lfe->nsh.choice);
997 lisp_nsh_fib_add_del_entry (fid_addr_nsh (&lfe->key->rmt), (u32) ~ 0, 0);
999 hash_unset_mem (lgm->lisp_gpe_fwd_entries, lfe->key);
1000 clib_mem_free (lfe->key);
1001 pool_put (lgm->lisp_fwd_entry_pool, lfe);
1005 * @brief Delete LISP NSH forwarding entry.
1007 * Coordinates the removal of forwarding entries for NSH LISP overlay:
1009 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
1010 * @param[in] a Parameters for building the forwarding entry.
1012 * @return 0 on success.
1015 del_nsh_fwd_entry (lisp_gpe_main_t * lgm,
1016 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
1018 lisp_gpe_fwd_entry_key_t key;
1019 lisp_gpe_fwd_entry_t *lfe;
1021 lfe = find_fwd_entry (lgm, a, &key);
1024 return VNET_API_ERROR_INVALID_VALUE;
1026 del_nsh_fwd_entry_i (lgm, lfe);
1032 * @brief Construct and insert the forwarding information used by an NSH entry
1035 lisp_gpe_nsh_update_fwding (lisp_gpe_fwd_entry_t * lfe)
1037 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
1038 dpo_id_t dpo = DPO_INVALID;
1039 vnet_hw_interface_t *hi;
1042 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
1044 fib_path_list_contribute_forwarding (lfe->nsh.path_list_index,
1045 FIB_FORW_CHAIN_TYPE_NSH,
1049 * LISP encap is always the same for this SPI+SI so we do that hash now
1050 * and stack on the choice.
1052 if (DPO_LOAD_BALANCE == lfe->nsh.dpo.dpoi_type)
1054 const dpo_id_t *tmp;
1055 const load_balance_t *lb;
1058 lb = load_balance_get (lfe->nsh.dpo.dpoi_index);
1059 hash = fid_addr_nsh (&lfe->key->rmt) % lb->lb_n_buckets;
1061 load_balance_get_bucket_i (lb, hash & lb->lb_n_buckets_minus_1);
1063 dpo_copy (&dpo, tmp);
1068 switch (lfe->action)
1070 case SEND_MAP_REQUEST:
1071 dpo_copy (&dpo, lgm->nsh_cp_lkup);
1074 case FORWARD_NATIVE:
1076 dpo_copy (&dpo, drop_dpo_get (DPO_PROTO_NSH));
1080 /* We have only one nsh-lisp interface (no NSH virtualization) */
1081 hip = hash_get (lgm->nsh_ifaces.hw_if_index_by_dp_table, 0);
1084 hi = vnet_get_hw_interface (lgm->vnet_main, hip[0]);
1085 dpo_stack_from_node (hi->tx_node_index, &lfe->nsh.choice, &dpo);
1087 /* add entry to nsh lisp fib */
1088 lisp_nsh_fib_add_del_entry (fid_addr_nsh (&lfe->key->rmt),
1089 lfe - lgm->lisp_fwd_entry_pool, 1);
1095 * @brief Add LISP NSH forwarding entry.
1097 * Coordinates the creation of forwarding entries for L2 LISP overlay:
1098 * creates lisp-gpe tunnel and injects new entry in Source/Dest L2 FIB.
1100 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
1101 * @param[in] a Parameters for building the forwarding entry.
1103 * @return 0 on success.
1106 add_nsh_fwd_entry (lisp_gpe_main_t * lgm,
1107 vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
1109 lisp_gpe_fwd_entry_key_t key;
1110 lisp_gpe_fwd_entry_t *lfe;
1112 lfe = find_fwd_entry (lgm, a, &key);
1115 /* don't support updates */
1116 return VNET_API_ERROR_INVALID_VALUE;
1118 pool_get (lgm->lisp_fwd_entry_pool, lfe);
1119 memset (lfe, 0, sizeof (*lfe));
1120 lfe->key = clib_mem_alloc (sizeof (key));
1121 memcpy (lfe->key, &key, sizeof (key));
1123 hash_set_mem (lgm->lisp_gpe_fwd_entries, lfe->key,
1124 lfe - lgm->lisp_fwd_entry_pool);
1125 a->fwd_entry_index = lfe - lgm->lisp_fwd_entry_pool;
1127 lfe->type = (a->is_negative ?
1128 LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE :
1129 LISP_GPE_FWD_ENTRY_TYPE_NORMAL);
1132 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE != lfe->type)
1134 fib_route_path_t *rpaths;
1137 * Make the sorted array of LISP paths with their resp. adjacency
1139 lisp_gpe_fwd_entry_mk_paths (lfe, a);
1142 * From the LISP paths, construct a FIB path list that will
1143 * contribute a load-balance.
1145 rpaths = lisp_gpe_mk_fib_paths (lfe->paths);
1147 lfe->nsh.path_list_index =
1148 fib_path_list_create (FIB_PATH_LIST_FLAG_NONE, rpaths);
1151 * become a child of the path-list so we receive updates when
1152 * its forwarding state changes. this includes an implicit lock.
1154 lfe->nsh.child_index =
1155 fib_path_list_child_add (lfe->nsh.path_list_index,
1156 FIB_NODE_TYPE_LISP_GPE_FWD_ENTRY,
1157 lfe - lgm->lisp_fwd_entry_pool);
1161 lfe->action = a->action;
1164 lisp_gpe_nsh_update_fwding (lfe);
1170 * @brief conver from the embedded fib_node_t struct to the LSIP entry
1172 static lisp_gpe_fwd_entry_t *
1173 lisp_gpe_fwd_entry_from_fib_node (fib_node_t * node)
1175 return ((lisp_gpe_fwd_entry_t *) (((char *) node) -
1176 STRUCT_OFFSET_OF (lisp_gpe_fwd_entry_t,
1181 * @brief Function invoked during a backwalk of the FIB graph
1183 static fib_node_back_walk_rc_t
1184 lisp_gpe_fib_node_back_walk (fib_node_t * node,
1185 fib_node_back_walk_ctx_t * ctx)
1187 lisp_gpe_fwd_entry_t *lfe = lisp_gpe_fwd_entry_from_fib_node (node);
1189 if (fid_addr_type (&lfe->key->rmt) == FID_ADDR_MAC)
1190 lisp_gpe_l2_update_fwding (lfe);
1191 else if (fid_addr_type (&lfe->key->rmt) == FID_ADDR_NSH)
1192 lisp_gpe_nsh_update_fwding (lfe);
1194 return (FIB_NODE_BACK_WALK_CONTINUE);
1198 * @brief Get a fib_node_t struct from the index of a LISP fwd entry
1201 lisp_gpe_fwd_entry_get_fib_node (fib_node_index_t index)
1203 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1204 lisp_gpe_fwd_entry_t *lfe;
1206 lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, index);
1208 return (&(lfe->node));
1212 * @brief An indication from the graph that the last lock has gone
1215 lisp_gpe_fwd_entry_fib_node_last_lock_gone (fib_node_t * node)
1217 /* We don't manage the locks of the LISP objects via the graph, since
1218 * this object has no children. so this is a no-op. */
1222 * @brief Virtual function table to register with FIB for the LISP type
1224 const static fib_node_vft_t lisp_fwd_vft = {
1225 .fnv_get = lisp_gpe_fwd_entry_get_fib_node,
1226 .fnv_last_lock = lisp_gpe_fwd_entry_fib_node_last_lock_gone,
1227 .fnv_back_walk = lisp_gpe_fib_node_back_walk,
1231 * @brief Forwarding entry create/remove dispatcher.
1233 * Calls l2 or l3 forwarding entry add/del function based on input data.
1235 * @param[in] a Forwarding entry parameters.
1236 * @param[out] hw_if_indexp NOT USED
1238 * @return 0 on success.
1241 vnet_lisp_gpe_add_del_fwd_entry (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
1244 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1247 if (vnet_lisp_gpe_enable_disable_status () == 0)
1249 clib_warning ("LISP is disabled!");
1250 return VNET_API_ERROR_LISP_DISABLED;
1253 type = gid_address_type (&a->rmt_eid);
1256 case GID_ADDR_IP_PREFIX:
1258 return add_ip_fwd_entry (lgm, a);
1260 return del_ip_fwd_entry (lgm, a);
1264 return add_l2_fwd_entry (lgm, a);
1266 return del_l2_fwd_entry (lgm, a);
1269 return add_nsh_fwd_entry (lgm, a);
1271 return del_nsh_fwd_entry (lgm, a);
1273 clib_warning ("Forwarding entries for type %d not supported!", type);
1279 vnet_lisp_flush_stats (void)
1281 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
1282 vlib_combined_counter_main_t *cm = &lgm->counters;
1285 for (i = 0; i < vlib_combined_counter_n_counters (cm); i++)
1286 vlib_zero_combined_counter (cm, i);
1292 lisp_del_adj_stats (lisp_gpe_main_t * lgm, u32 fwd_entry_index, u32 ti)
1295 lisp_stats_key_t key;
1300 memset (&key, 0, sizeof (key));
1301 key.fwd_entry_index = fwd_entry_index;
1302 key.tunnel_index = ti;
1304 p = hash_get_mem (lgm->lisp_stats_index_by_key, &key);
1307 s = pool_elt_at_index (lgm->dummy_stats_pool, p[0]);
1308 hp = hash_get_pair (lgm->lisp_stats_index_by_key, &key);
1309 key_copy = (void *) (hp->key);
1310 hash_unset_mem (lgm->lisp_stats_index_by_key, &key);
1311 clib_mem_free (key_copy);
1312 pool_put (lgm->dummy_stats_pool, s);
1317 vnet_lisp_gpe_del_fwd_counters (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
1318 u32 fwd_entry_index)
1320 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1321 lisp_gpe_fwd_entry_key_t fe_key;
1322 lisp_gpe_fwd_entry_t *lfe;
1323 lisp_fwd_path_t *path;
1324 const lisp_gpe_adjacency_t *ladj;
1326 lfe = find_fwd_entry (lgm, a, &fe_key);
1330 if (LISP_GPE_FWD_ENTRY_TYPE_NORMAL != lfe->type)
1333 vec_foreach (path, lfe->paths)
1335 ladj = lisp_gpe_adjacency_get (path->lisp_adj);
1336 lisp_del_adj_stats (lgm, fwd_entry_index, ladj->tunnel_index);
1341 * @brief Flush all the forwrding entries
1344 vnet_lisp_gpe_fwd_entry_flush (void)
1346 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1347 lisp_gpe_fwd_entry_t *lfe;
1350 pool_foreach (lfe, lgm->lisp_fwd_entry_pool,
1352 switch (fid_addr_type(&lfe->key->rmt))
1355 del_l2_fwd_entry_i (lgm, lfe);
1357 case FID_ADDR_IP_PREF:
1358 del_ip_fwd_entry_i (lgm, lfe);
1361 del_nsh_fwd_entry_i (lgm, lfe);
1369 format_lisp_fwd_path (u8 * s, va_list ap)
1371 lisp_fwd_path_t *lfp = va_arg (ap, lisp_fwd_path_t *);
1373 s = format (s, "weight:%d ", lfp->weight);
1374 s = format (s, "adj:[%U]\n",
1375 format_lisp_gpe_adjacency,
1376 lisp_gpe_adjacency_get (lfp->lisp_adj),
1377 LISP_GPE_ADJ_FORMAT_FLAG_NONE);
1382 typedef enum lisp_gpe_fwd_entry_format_flag_t_
1384 LISP_GPE_FWD_ENTRY_FORMAT_NONE = (0 << 0),
1385 LISP_GPE_FWD_ENTRY_FORMAT_DETAIL = (1 << 1),
1386 } lisp_gpe_fwd_entry_format_flag_t;
1390 format_lisp_gpe_fwd_entry (u8 * s, va_list ap)
1392 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1393 lisp_gpe_fwd_entry_t *lfe = va_arg (ap, lisp_gpe_fwd_entry_t *);
1394 lisp_gpe_fwd_entry_format_flag_t flags =
1395 va_arg (ap, lisp_gpe_fwd_entry_format_flag_t);
1397 s = format (s, "VNI:%d VRF:%d EID: %U -> %U [index:%d]",
1398 lfe->key->vni, lfe->eid_table_id,
1399 format_fid_address, &lfe->key->lcl,
1400 format_fid_address, &lfe->key->rmt,
1401 lfe - lgm->lisp_fwd_entry_pool);
1403 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE == lfe->type)
1405 s = format (s, "\n Negative - action:%U",
1406 format_negative_mapping_action, lfe->action);
1410 lisp_fwd_path_t *path;
1412 s = format (s, "\n via:");
1413 vec_foreach (path, lfe->paths)
1415 s = format (s, "\n %U", format_lisp_fwd_path, path);
1419 if (flags & LISP_GPE_FWD_ENTRY_FORMAT_DETAIL)
1421 switch (fid_addr_type (&lfe->key->rmt))
1424 s = format (s, " fib-path-list:%d\n", lfe->l2.path_list_index);
1425 s = format (s, " dpo:%U\n", format_dpo_id, &lfe->l2.dpo, 0);
1428 s = format (s, " fib-path-list:%d\n", lfe->nsh.path_list_index);
1429 s = format (s, " dpo:%U\n", format_dpo_id, &lfe->nsh.dpo, 0);
1431 case FID_ADDR_IP_PREF:
1439 static clib_error_t *
1440 lisp_gpe_fwd_entry_show (vlib_main_t * vm,
1441 unformat_input_t * input, vlib_cli_command_t * cmd)
1443 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1444 lisp_gpe_fwd_entry_t *lfe;
1448 if (unformat (input, "vni %d", &vni))
1450 else if (unformat (input, "%d", &index))
1452 if (!pool_is_free_index (lgm->lisp_fwd_entry_pool, index))
1454 lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, index);
1456 vlib_cli_output (vm, "[%d@] %U",
1458 format_lisp_gpe_fwd_entry, lfe,
1459 LISP_GPE_FWD_ENTRY_FORMAT_DETAIL);
1463 vlib_cli_output (vm, "entry %d invalid", index);
1470 pool_foreach (lfe, lgm->lisp_fwd_entry_pool,
1473 (lfe->key->vni == vni))
1474 vlib_cli_output (vm, "%U", format_lisp_gpe_fwd_entry, lfe,
1475 LISP_GPE_FWD_ENTRY_FORMAT_NONE);
1483 VLIB_CLI_COMMAND (lisp_gpe_fwd_entry_show_command, static) = {
1484 .path = "show gpe entry",
1485 .short_help = "show gpe entry vni <vni> vrf <vrf> [leid <leid>] reid <reid>",
1486 .function = lisp_gpe_fwd_entry_show,
1491 lisp_gpe_fwd_entry_init (vlib_main_t * vm)
1493 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1494 clib_error_t *error = NULL;
1496 if ((error = vlib_call_init_function (vm, lisp_cp_dpo_module_init)))
1502 fib_node_register_type (FIB_NODE_TYPE_LISP_GPE_FWD_ENTRY, &lisp_fwd_vft);
1508 vnet_lisp_gpe_get_fwd_entry_vnis (void)
1510 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
1511 lisp_gpe_fwd_entry_t *lfe;
1515 pool_foreach (lfe, lgm->lisp_fwd_entry_pool,
1517 hash_set (vnis, lfe->key->vni, 0);
1524 lisp_api_gpe_fwd_entry_t *
1525 vnet_lisp_gpe_fwd_entries_get_by_vni (u32 vni)
1527 lisp_gpe_main_t *lgm = &lisp_gpe_main;
1528 lisp_gpe_fwd_entry_t *lfe;
1529 lisp_api_gpe_fwd_entry_t *entries = 0, e;
1532 pool_foreach (lfe, lgm->lisp_fwd_entry_pool,
1534 if (lfe->key->vni == vni)
1536 memset (&e, 0, sizeof (e));
1537 e.dp_table = lfe->eid_table_id;
1538 e.vni = lfe->key->vni;
1539 if (lfe->type == LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE)
1540 e.action = lfe->action;
1541 e.fwd_entry_index = lfe - lgm->lisp_fwd_entry_pool;
1542 memcpy (&e.reid, &lfe->key->rmt, sizeof (e.reid));
1543 memcpy (&e.leid, &lfe->key->lcl, sizeof (e.leid));
1544 vec_add1 (entries, e);
1553 vnet_lisp_gpe_get_fwd_stats (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
1556 lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
1557 lisp_gpe_fwd_entry_t *lfe;
1558 lisp_gpe_fwd_entry_key_t unused;
1560 lfe = find_fwd_entry (lgm, a, &unused);
1564 if (LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE == lfe->type)
1567 if (~0 == lfe->dpoi_index)
1570 vlib_get_combined_counter (&load_balance_main.lbm_to_counters,
1571 lfe->dpoi_index, c);
1575 VLIB_INIT_FUNCTION (lisp_gpe_fwd_entry_init);
1578 * fd.io coding-style-patch-verification: ON
1581 * eval: (c-set-style "gnu")