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 <vlibmemory/api.h>
17 #include <vnet/lisp-cp/control.h>
18 #include <vnet/lisp-cp/packets.h>
19 #include <vnet/lisp-cp/lisp_msg_serdes.h>
20 #include <vnet/lisp-gpe/lisp_gpe_fwd_entry.h>
21 #include <vnet/lisp-gpe/lisp_gpe_tenant.h>
22 #include <vnet/fib/fib_entry.h>
23 #include <vnet/fib/fib_table.h>
25 #include <openssl/evp.h>
26 #include <openssl/hmac.h>
28 lisp_cp_main_t lisp_control_main;
30 u8 *format_lisp_cp_input_trace (u8 * s, va_list * args);
34 LISP_CP_INPUT_NEXT_DROP,
36 } lisp_cp_input_next_t;
54 vnet_lisp_get_map_request_mode (void)
56 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
57 return lcm->map_request_mode;
61 auth_data_len_by_key_id (lisp_key_type_t key_id)
66 return SHA1_AUTH_DATA_LEN;
67 case HMAC_SHA_256_128:
68 return SHA256_AUTH_DATA_LEN;
70 clib_warning ("unsupported key type: %d!", key_id);
77 get_encrypt_fcn (lisp_key_type_t key_id)
83 case HMAC_SHA_256_128:
86 clib_warning ("unsupported encryption key type: %d!", key_id);
93 queue_map_request (gid_address_t * seid, gid_address_t * deid,
94 u8 smr_invoked, u8 is_resend);
96 ip_interface_address_t *
97 ip_interface_get_first_interface_address (ip_lookup_main_t * lm,
98 u32 sw_if_index, u8 loop)
100 vnet_main_t *vnm = vnet_get_main ();
101 vnet_sw_interface_t *swif = vnet_get_sw_interface (vnm, sw_if_index);
102 if (loop && swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
103 sw_if_index = swif->unnumbered_sw_if_index;
105 (vec_len ((lm)->if_address_pool_index_by_sw_if_index) > (sw_if_index)) ?
106 vec_elt ((lm)->if_address_pool_index_by_sw_if_index, (sw_if_index)) :
108 return pool_elt_at_index ((lm)->if_address_pool, ia);
112 ip_interface_get_first_address (ip_lookup_main_t * lm, u32 sw_if_index,
115 ip_interface_address_t *ia;
117 ia = ip_interface_get_first_interface_address (lm, sw_if_index, 1);
120 return ip_interface_address_get_address (lm, ia);
124 ip_interface_get_first_ip_address (lisp_cp_main_t * lcm, u32 sw_if_index,
125 u8 version, ip_address_t * result)
127 ip_lookup_main_t *lm;
130 lm = (version == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
131 addr = ip_interface_get_first_address (lm, sw_if_index, version);
135 ip_address_set (result, addr, version);
140 * convert from a LISP address to a FIB prefix
143 ip_address_to_fib_prefix (const ip_address_t * addr, fib_prefix_t * prefix)
145 if (addr->version == IP4)
148 prefix->fp_proto = FIB_PROTOCOL_IP4;
149 memset (&prefix->fp_addr.pad, 0, sizeof (prefix->fp_addr.pad));
150 memcpy (&prefix->fp_addr.ip4, &addr->ip, sizeof (prefix->fp_addr.ip4));
154 prefix->fp_len = 128;
155 prefix->fp_proto = FIB_PROTOCOL_IP6;
156 memcpy (&prefix->fp_addr.ip6, &addr->ip, sizeof (prefix->fp_addr.ip6));
161 * convert from a LISP to a FIB prefix
164 ip_prefix_to_fib_prefix (const ip_prefix_t * ip_prefix,
165 fib_prefix_t * fib_prefix)
167 ip_address_to_fib_prefix (&ip_prefix->addr, fib_prefix);
168 fib_prefix->fp_len = ip_prefix->len;
172 * Find the sw_if_index of the interface that would be used to egress towards
176 ip_fib_get_egress_iface_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst)
178 fib_node_index_t fei;
181 ip_address_to_fib_prefix (dst, &prefix);
183 fei = fib_table_lookup (0, &prefix);
185 return (fib_entry_get_resolving_interface (fei));
189 * Find first IP of the interface that would be used to egress towards dst.
190 * Returns 1 if the address is found 0 otherwise.
193 ip_fib_get_first_egress_ip_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst,
194 ip_address_t * result)
197 ip_lookup_main_t *lm;
201 ASSERT (result != 0);
203 ipver = ip_addr_version (dst);
205 lm = (ipver == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
206 si = ip_fib_get_egress_iface_for_dst (lcm, dst);
211 /* find the first ip address */
212 addr = ip_interface_get_first_address (lm, si, ipver);
216 ip_address_set (result, addr, ipver);
221 dp_add_del_iface (lisp_cp_main_t * lcm, u32 vni, u8 is_l2, u8 is_add)
227 dp_table = hash_get (lcm->table_id_by_vni, vni);
231 clib_warning ("vni %d not associated to a vrf!", vni);
232 return VNET_API_ERROR_INVALID_VALUE;
237 dp_table = hash_get (lcm->bd_id_by_vni, vni);
240 clib_warning ("vni %d not associated to a bridge domain!", vni);
241 return VNET_API_ERROR_INVALID_VALUE;
245 /* enable/disable data-plane interface */
249 lisp_gpe_tenant_l2_iface_add_or_lock (vni, dp_table[0]);
251 lisp_gpe_tenant_l3_iface_add_or_lock (vni, dp_table[0]);
256 lisp_gpe_tenant_l2_iface_unlock (vni);
258 lisp_gpe_tenant_l3_iface_unlock (vni);
265 dp_del_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index)
267 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a;
270 memset (a, 0, sizeof (*a));
272 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
276 fe = pool_elt_at_index (lcm->fwd_entry_pool, feip[0]);
278 /* delete dp fwd entry */
281 a->locator_pairs = fe->locator_pairs;
282 a->vni = gid_address_vni (&fe->reid);
283 gid_address_copy (&a->rmt_eid, &fe->reid);
285 gid_address_copy (&a->lcl_eid, &fe->leid);
287 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
289 /* delete entry in fwd table */
290 hash_unset (lcm->fwd_entry_by_mapping_index, dst_map_index);
291 vec_free (fe->locator_pairs);
292 pool_put (lcm->fwd_entry_pool, fe);
296 * Finds first remote locator with best (lowest) priority that has a local
297 * peer locator with an underlying route to it.
301 get_locator_pairs (lisp_cp_main_t * lcm, mapping_t * lcl_map,
302 mapping_t * rmt_map, locator_pair_t ** locator_pairs)
304 u32 i, limitp = 0, li, found = 0, esi;
305 locator_set_t *rmt_ls, *lcl_ls;
306 ip_address_t _lcl_addr, *lcl_addr = &_lcl_addr;
307 locator_t *lp, *rmt = 0;
312 pool_elt_at_index (lcm->locator_set_pool, rmt_map->locator_set_index);
314 pool_elt_at_index (lcm->locator_set_pool, lcl_map->locator_set_index);
316 if (!rmt_ls || vec_len (rmt_ls->locator_indices) == 0)
323 /* find unvisited remote locator with best priority */
324 for (i = 0; i < vec_len (rmt_ls->locator_indices); i++)
326 if (0 != hash_get (checked, i))
329 li = vec_elt (rmt_ls->locator_indices, i);
330 lp = pool_elt_at_index (lcm->locator_pool, li);
332 /* we don't support non-IP locators for now */
333 if (gid_address_type (&lp->address) != GID_ADDR_IP_PREFIX)
336 if ((found && lp->priority == limitp)
337 || (!found && lp->priority >= limitp))
341 /* don't search for locators with lower priority and don't
342 * check this locator again*/
343 limitp = lp->priority;
344 hash_set (checked, i, 1);
348 /* check if a local locator with a route to remote locator exists */
351 /* find egress sw_if_index for rmt locator */
353 ip_fib_get_egress_iface_for_dst (lcm,
354 &gid_address_ip (&rmt->address));
355 if ((u32) ~ 0 == esi)
358 for (i = 0; i < vec_len (lcl_ls->locator_indices); i++)
360 li = vec_elt (lcl_ls->locator_indices, i);
361 locator_t *sl = pool_elt_at_index (lcm->locator_pool, li);
363 /* found local locator with the needed sw_if_index */
364 if (sl->sw_if_index == esi)
366 /* and it has an address */
367 if (0 == ip_interface_get_first_ip_address (lcm,
369 gid_address_ip_version
374 memset (&pair, 0, sizeof (pair));
375 ip_address_copy (&pair.rmt_loc,
376 &gid_address_ip (&rmt->address));
377 ip_address_copy (&pair.lcl_loc, lcl_addr);
378 pair.weight = rmt->weight;
379 pair.priority = rmt->priority;
380 vec_add1 (locator_pairs[0], pair);
394 gid_address_sd_to_flat (gid_address_t * dst, gid_address_t * src,
397 ASSERT (GID_ADDR_SRC_DST == gid_address_type (src));
401 switch (fid_addr_type (fid))
403 case FID_ADDR_IP_PREF:
404 gid_address_type (dst) = GID_ADDR_IP_PREFIX;
405 gid_address_ippref (dst) = fid_addr_ippref (fid);
408 gid_address_type (dst) = GID_ADDR_MAC;
409 mac_copy (gid_address_mac (dst), fid_addr_mac (fid));
412 clib_warning ("Unsupported fid type %d!", fid_addr_type (fid));
418 vnet_lisp_map_register_state_get (void)
420 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
421 return lcm->map_registering;
425 vnet_lisp_rloc_probe_state_get (void)
427 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
428 return lcm->rloc_probing;
432 dp_add_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index)
434 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a;
435 mapping_t *src_map, *dst_map;
437 uword *feip = 0, *dpid;
439 u8 type, is_src_dst = 0;
441 memset (a, 0, sizeof (*a));
443 /* remove entry if it already exists */
444 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
446 dp_del_fwd_entry (lcm, src_map_index, dst_map_index);
449 src_map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
451 src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index);
452 dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index);
454 /* insert data plane forwarding entry */
457 if (MR_MODE_SRC_DST == lcm->map_request_mode)
459 if (GID_ADDR_SRC_DST == gid_address_type (&dst_map->eid))
461 gid_address_sd_to_flat (&a->rmt_eid, &dst_map->eid,
462 &gid_address_sd_dst (&dst_map->eid));
463 gid_address_sd_to_flat (&a->lcl_eid, &dst_map->eid,
464 &gid_address_sd_src (&dst_map->eid));
468 gid_address_copy (&a->rmt_eid, &dst_map->eid);
469 gid_address_copy (&a->lcl_eid, &src_map->eid);
474 gid_address_copy (&a->rmt_eid, &dst_map->eid);
476 a->vni = gid_address_vni (&a->rmt_eid);
478 /* get vrf or bd_index associated to vni */
479 type = gid_address_type (&a->rmt_eid);
480 if (GID_ADDR_IP_PREFIX == type)
482 dpid = hash_get (lcm->table_id_by_vni, a->vni);
485 clib_warning ("vni %d not associated to a vrf!", a->vni);
488 a->table_id = dpid[0];
490 else if (GID_ADDR_MAC == type)
492 dpid = hash_get (lcm->bd_id_by_vni, a->vni);
495 clib_warning ("vni %d not associated to a bridge domain !", a->vni);
501 /* find best locator pair that 1) verifies LISP policy 2) are connected */
502 if (0 == get_locator_pairs (lcm, src_map, dst_map, &a->locator_pairs))
506 a->action = dst_map->action;
510 u8 ipver = ip_prefix_version (&gid_address_ippref (&a->rmt_eid));
511 a->decap_next_index = (ipver == IP4) ?
512 LISP_GPE_INPUT_NEXT_IP4_INPUT : LISP_GPE_INPUT_NEXT_IP6_INPUT;
514 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
516 /* add tunnel to fwd entry table XXX check return value from DP insertion */
517 pool_get (lcm->fwd_entry_pool, fe);
518 fe->locator_pairs = a->locator_pairs;
519 gid_address_copy (&fe->reid, &a->rmt_eid);
522 gid_address_copy (&fe->leid, &a->lcl_eid);
524 gid_address_copy (&fe->leid, &src_map->eid);
526 fe->is_src_dst = is_src_dst;
527 hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
528 fe - lcm->fwd_entry_pool);
535 } fwd_entry_mt_arg_t;
538 dp_add_fwd_entry_thread_fn (void *arg)
540 fwd_entry_mt_arg_t *a = arg;
541 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
542 dp_add_fwd_entry (lcm, a->si, a->di);
547 dp_add_fwd_entry_from_mt (u32 si, u32 di)
549 fwd_entry_mt_arg_t a;
551 memset (&a, 0, sizeof (a));
555 vl_api_rpc_call_main_thread (dp_add_fwd_entry_thread_fn,
556 (u8 *) & a, sizeof (a));
561 * Returns vector of adjacencies.
563 * The caller must free the vector returned by this function.
565 * @param vni virtual network identifier
566 * @return vector of adjacencies
569 vnet_lisp_adjacencies_get_by_vni (u32 vni)
571 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
573 lisp_adjacency_t *adjs = 0, adj;
576 pool_foreach(fwd, lcm->fwd_entry_pool,
578 if (gid_address_vni (&fwd->reid) != vni)
581 gid_address_copy (&adj.reid, &fwd->reid);
582 gid_address_copy (&adj.leid, &fwd->leid);
583 vec_add1 (adjs, adj);
591 get_map_server (ip_address_t * a)
593 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
596 vec_foreach (m, lcm->map_servers)
598 if (!ip_address_cmp (&m->address, a))
607 get_map_resolver (ip_address_t * a)
609 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
612 vec_foreach (m, lcm->map_resolvers)
614 if (!ip_address_cmp (&m->address, a))
623 vnet_lisp_add_del_map_server (ip_address_t * addr, u8 is_add)
626 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
627 lisp_msmr_t _ms, *ms = &_ms;
629 if (vnet_lisp_enable_disable_status () == 0)
631 clib_warning ("LISP is disabled!");
632 return VNET_API_ERROR_LISP_DISABLED;
637 if (get_map_server (addr))
639 clib_warning ("map-server %U already exists!", format_ip_address,
644 memset (ms, 0, sizeof (*ms));
645 ip_address_copy (&ms->address, addr);
646 vec_add1 (lcm->map_servers, ms[0]);
650 for (i = 0; i < vec_len (lcm->map_servers); i++)
652 ms = vec_elt_at_index (lcm->map_servers, i);
653 if (!ip_address_cmp (&ms->address, addr))
655 vec_del1 (lcm->map_servers, i);
665 * Add/remove mapping to/from map-cache. Overwriting not allowed.
668 vnet_lisp_map_cache_add_del (vnet_lisp_add_del_mapping_args_t * a,
669 u32 * map_index_result)
671 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
672 u32 mi, *map_indexp, map_index, i;
673 mapping_t *m, *old_map;
676 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->eid);
677 old_map = mi != ~0 ? pool_elt_at_index (lcm->mapping_pool, mi) : 0;
680 /* TODO check if overwriting and take appropriate actions */
681 if (mi != GID_LOOKUP_MISS && !gid_address_cmp (&old_map->eid, &a->eid))
683 clib_warning ("eid %U found in the eid-table", format_gid_address,
685 return VNET_API_ERROR_VALUE_EXIST;
688 pool_get (lcm->mapping_pool, m);
689 gid_address_copy (&m->eid, &a->eid);
690 m->locator_set_index = a->locator_set_index;
692 m->action = a->action;
694 m->is_static = a->is_static;
695 m->key = vec_dup (a->key);
696 m->key_id = a->key_id;
698 map_index = m - lcm->mapping_pool;
699 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, map_index,
702 if (pool_is_free_index (lcm->locator_set_pool, a->locator_set_index))
704 clib_warning ("Locator set with index %d doesn't exist",
705 a->locator_set_index);
706 return VNET_API_ERROR_INVALID_VALUE;
709 /* add eid to list of eids supported by locator-set */
710 vec_validate (lcm->locator_set_to_eids, a->locator_set_index);
711 eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids,
712 a->locator_set_index);
713 vec_add1 (eid_indexes[0], map_index);
718 vec_add1 (lcm->local_mappings_indexes, map_index);
720 map_index_result[0] = map_index;
724 if (mi == GID_LOOKUP_MISS)
726 clib_warning ("eid %U not found in the eid-table",
727 format_gid_address, &a->eid);
728 return VNET_API_ERROR_INVALID_VALUE;
731 /* clear locator-set to eids binding */
732 eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids,
733 a->locator_set_index);
734 for (i = 0; i < vec_len (eid_indexes[0]); i++)
736 map_indexp = vec_elt_at_index (eid_indexes[0], i);
737 if (map_indexp[0] == mi)
740 vec_del1 (eid_indexes[0], i);
742 /* remove local mark if needed */
743 m = pool_elt_at_index (lcm->mapping_pool, mi);
747 for (k = 0; k < vec_len (lcm->local_mappings_indexes); k++)
749 lm_indexp = vec_elt_at_index (lcm->local_mappings_indexes, k);
750 if (lm_indexp[0] == mi)
753 vec_del1 (lcm->local_mappings_indexes, k);
756 /* remove mapping from dictionary */
757 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, 0, 0);
758 gid_address_free (&m->eid);
759 pool_put_index (lcm->mapping_pool, mi);
766 * Add/update/delete mapping to/in/from map-cache.
769 vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a,
770 u32 * map_index_result)
776 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
778 if (vnet_lisp_enable_disable_status () == 0)
780 clib_warning ("LISP is disabled!");
781 return VNET_API_ERROR_LISP_DISABLED;
784 vni = gid_address_vni (&a->eid);
785 type = gid_address_type (&a->eid);
786 if (GID_ADDR_IP_PREFIX == type)
787 dp_table = hash_get (lcm->table_id_by_vni, vni);
788 else if (GID_ADDR_MAC == type)
789 dp_table = hash_get (lcm->bd_id_by_vni, vni);
793 clib_warning ("vni %d not associated to a %s!", vni,
794 GID_ADDR_IP_PREFIX == type ? "vrf" : "bd");
795 return VNET_API_ERROR_INVALID_VALUE;
798 /* store/remove mapping from map-cache */
799 return vnet_lisp_map_cache_add_del (a, map_index_result);
803 vnet_lisp_eid_table_map (u32 vni, u32 dp_id, u8 is_l2, u8 is_add)
805 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
806 uword *dp_idp, *vnip, **dp_table_by_vni, **vni_by_dp_table;
808 if (vnet_lisp_enable_disable_status () == 0)
810 clib_warning ("LISP is disabled!");
814 dp_table_by_vni = is_l2 ? &lcm->bd_id_by_vni : &lcm->table_id_by_vni;
815 vni_by_dp_table = is_l2 ? &lcm->vni_by_bd_id : &lcm->vni_by_table_id;
817 if (!is_l2 && (vni == 0 || dp_id == 0))
819 clib_warning ("can't add/del default vni-vrf mapping!");
823 dp_idp = hash_get (dp_table_by_vni[0], vni);
824 vnip = hash_get (vni_by_dp_table[0], dp_id);
830 clib_warning ("vni %d or vrf %d already used in vrf/vni "
831 "mapping!", vni, dp_id);
834 hash_set (dp_table_by_vni[0], vni, dp_id);
835 hash_set (vni_by_dp_table[0], dp_id, vni);
837 /* create dp iface */
838 dp_add_del_iface (lcm, vni, is_l2, 1);
842 if (!dp_idp || !vnip)
844 clib_warning ("vni %d or vrf %d not used in any vrf/vni! "
845 "mapping!", vni, dp_id);
848 hash_unset (dp_table_by_vni[0], vni);
849 hash_unset (vni_by_dp_table[0], dp_id);
851 /* remove dp iface */
852 dp_add_del_iface (lcm, vni, is_l2, 0);
858 /* return 0 if the two locator sets are identical 1 otherwise */
860 compare_locators (lisp_cp_main_t * lcm, u32 * old_ls_indexes,
861 locator_t * new_locators)
864 locator_t *old_loc, *new_loc;
866 if (vec_len (old_ls_indexes) != vec_len (new_locators))
869 for (i = 0; i < vec_len (new_locators); i++)
871 old_li = vec_elt (old_ls_indexes, i);
872 old_loc = pool_elt_at_index (lcm->locator_pool, old_li);
874 new_loc = vec_elt_at_index (new_locators, i);
876 if (locator_cmp (old_loc, new_loc))
886 gid_address_t *eids_to_be_deleted;
887 } remove_mapping_args_t;
890 * Callback invoked when a sub-prefix is found
893 remove_mapping_if_needed (u32 mi, void *arg)
896 remove_mapping_args_t *a = arg;
897 lisp_cp_main_t *lcm = a->lcm;
901 m = pool_elt_at_index (lcm->mapping_pool, mi);
905 ls = pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index);
909 if (0 != vec_len (ls->locator_indices))
914 if (0 == vec_len (ls->locator_indices))
919 vec_add1 (a->eids_to_be_deleted, m->eid);
923 * This function searches map cache and looks for IP prefixes that are subset
924 * of the provided one. If such prefix is found depending on 'is_negative'
927 * 1) if is_negative is true and found prefix points to positive mapping,
928 * then the mapping is removed
929 * 2) if is_negative is false and found prefix points to negative mapping,
930 * then the mapping is removed
933 remove_overlapping_sub_prefixes (lisp_cp_main_t * lcm, gid_address_t * eid,
937 remove_mapping_args_t a;
939 memset (&a, 0, sizeof (a));
941 /* do this only in src/dst mode ... */
942 if (MR_MODE_SRC_DST != lcm->map_request_mode)
945 /* ... and only for IP prefix */
946 if (GID_ADDR_SRC_DST != gid_address_type (eid)
947 || (FID_ADDR_IP_PREF != gid_address_sd_dst_type (eid)))
950 a.is_negative = is_negative;
953 gid_dict_foreach_subprefix (&lcm->mapping_index_by_gid, eid,
954 remove_mapping_if_needed, &a);
956 vec_foreach (e, a.eids_to_be_deleted)
958 vnet_lisp_add_del_adjacency_args_t _adj_args, *adj_args = &_adj_args;
960 memset (adj_args, 0, sizeof (adj_args[0]));
961 gid_address_copy (&adj_args->reid, e);
962 adj_args->is_add = 0;
963 if (vnet_lisp_add_del_adjacency (adj_args))
964 clib_warning ("failed to del adjacency!");
966 vnet_lisp_add_del_mapping (e, 0, 0, 0, 0, 0 /* is add */ , 0, 0);
969 vec_free (a.eids_to_be_deleted);
973 mapping_delete_timer (lisp_cp_main_t * lcm, u32 mi)
975 timing_wheel_delete (&lcm->wheel, mi);
979 * Adds/removes/updates mapping. Does not program forwarding.
981 * @param eid end-host identifier
982 * @param rlocs vector of remote locators
983 * @param action action for negative map-reply
984 * @param is_add add mapping if non-zero, delete otherwise
985 * @param res_map_index the map-index that was created/updated/removed. It is
986 * set to ~0 if no action is taken.
987 * @param is_static used for distinguishing between statically learned
988 remote mappings and mappings obtained from MR
989 * @return return code
992 vnet_lisp_add_del_mapping (gid_address_t * eid, locator_t * rlocs, u8 action,
993 u8 authoritative, u32 ttl, u8 is_add, u8 is_static,
996 vnet_lisp_add_del_mapping_args_t _m_args, *m_args = &_m_args;
997 vnet_lisp_add_del_locator_set_args_t _ls_args, *ls_args = &_ls_args;
998 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
999 u32 mi, ls_index = 0, dst_map_index;
1002 if (vnet_lisp_enable_disable_status () == 0)
1004 clib_warning ("LISP is disabled!");
1005 return VNET_API_ERROR_LISP_DISABLED;
1009 res_map_index[0] = ~0;
1011 memset (m_args, 0, sizeof (m_args[0]));
1012 memset (ls_args, 0, sizeof (ls_args[0]));
1014 ls_args->locators = rlocs;
1016 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, eid);
1017 old_map = ((u32) ~ 0 != mi) ? pool_elt_at_index (lcm->mapping_pool, mi) : 0;
1021 /* overwrite: if mapping already exists, decide if locators should be
1022 * updated and be done */
1023 if (old_map && gid_address_cmp (&old_map->eid, eid) == 0)
1025 if (!is_static && (old_map->is_static || old_map->local))
1027 /* do not overwrite local or static remote mappings */
1028 clib_warning ("mapping %U rejected due to collision with local "
1029 "or static remote mapping!", format_gid_address,
1034 locator_set_t *old_ls;
1036 /* update mapping attributes */
1037 old_map->action = action;
1038 old_map->authoritative = authoritative;
1041 old_ls = pool_elt_at_index (lcm->locator_set_pool,
1042 old_map->locator_set_index);
1043 if (compare_locators (lcm, old_ls->locator_indices,
1046 /* set locator-set index to overwrite */
1047 ls_args->is_add = 1;
1048 ls_args->index = old_map->locator_set_index;
1049 vnet_lisp_add_del_locator_set (ls_args, 0);
1051 res_map_index[0] = mi;
1057 remove_overlapping_sub_prefixes (lcm, eid, 0 == ls_args->locators);
1059 ls_args->is_add = 1;
1060 ls_args->index = ~0;
1062 vnet_lisp_add_del_locator_set (ls_args, &ls_index);
1065 gid_address_copy (&m_args->eid, eid);
1067 m_args->action = action;
1068 m_args->locator_set_index = ls_index;
1069 m_args->is_static = is_static;
1071 vnet_lisp_map_cache_add_del (m_args, &dst_map_index);
1074 res_map_index[0] = dst_map_index;
1079 if (old_map == 0 || gid_address_cmp (&old_map->eid, eid) != 0)
1081 clib_warning ("cannot delete mapping for eid %U",
1082 format_gid_address, eid);
1087 gid_address_copy (&m_args->eid, eid);
1088 m_args->locator_set_index = old_map->locator_set_index;
1090 /* delete mapping associated from map-cache */
1091 vnet_lisp_map_cache_add_del (m_args, 0);
1093 ls_args->is_add = 0;
1094 ls_args->index = old_map->locator_set_index;
1095 /* delete locator set */
1096 vnet_lisp_add_del_locator_set (ls_args, 0);
1098 /* delete timer associated to the mapping if any */
1099 if (old_map->timer_set)
1100 mapping_delete_timer (lcm, mi);
1102 /* return old mapping index */
1104 res_map_index[0] = mi;
1112 vnet_lisp_clear_all_remote_adjacencies (void)
1115 u32 mi, *map_indices = 0, *map_indexp;
1116 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1117 vnet_lisp_add_del_mapping_args_t _dm_args, *dm_args = &_dm_args;
1118 vnet_lisp_add_del_locator_set_args_t _ls, *ls = &_ls;
1121 pool_foreach_index (mi, lcm->mapping_pool,
1123 vec_add1 (map_indices, mi);
1127 vec_foreach (map_indexp, map_indices)
1129 mapping_t *map = pool_elt_at_index (lcm->mapping_pool, map_indexp[0]);
1132 dp_del_fwd_entry (lcm, 0, map_indexp[0]);
1134 dm_args->is_add = 0;
1135 gid_address_copy (&dm_args->eid, &map->eid);
1136 dm_args->locator_set_index = map->locator_set_index;
1138 /* delete mapping associated to fwd entry */
1139 vnet_lisp_map_cache_add_del (dm_args, 0);
1143 ls->index = map->locator_set_index;
1144 /* delete locator set */
1145 rv = vnet_lisp_add_del_locator_set (ls, 0);
1153 vec_free (map_indices);
1158 * Adds adjacency or removes forwarding entry associated to remote mapping.
1159 * Note that adjacencies are not stored, they only result in forwarding entries
1163 vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a)
1165 lisp_cp_main_t *lcm = &lisp_control_main;
1166 u32 local_mi, remote_mi = ~0;
1168 if (vnet_lisp_enable_disable_status () == 0)
1170 clib_warning ("LISP is disabled!");
1171 return VNET_API_ERROR_LISP_DISABLED;
1174 remote_mi = gid_dictionary_sd_lookup (&lcm->mapping_index_by_gid,
1175 &a->reid, &a->leid);
1176 if (GID_LOOKUP_MISS == remote_mi)
1178 clib_warning ("Remote eid %U not found. Cannot add adjacency!",
1179 format_gid_address, &a->reid);
1186 /* TODO 1) check if src/dst 2) once we have src/dst working, use it in
1189 /* check if source eid has an associated mapping. If pitr mode is on,
1190 * just use the pitr's mapping */
1191 local_mi = lcm->lisp_pitr ? lcm->pitr_map_index :
1192 gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->leid);
1195 if (GID_LOOKUP_MISS == local_mi)
1197 clib_warning ("Local eid %U not found. Cannot add adjacency!",
1198 format_gid_address, &a->leid);
1203 /* update forwarding */
1204 dp_add_fwd_entry (lcm, local_mi, remote_mi);
1207 dp_del_fwd_entry (lcm, 0, remote_mi);
1213 vnet_lisp_set_map_request_mode (u8 mode)
1215 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1217 if (vnet_lisp_enable_disable_status () == 0)
1219 clib_warning ("LISP is disabled!");
1220 return VNET_API_ERROR_LISP_DISABLED;
1223 if (mode >= _MR_MODE_MAX)
1225 clib_warning ("Invalid LISP map request mode %d!", mode);
1226 return VNET_API_ERROR_INVALID_ARGUMENT;
1229 lcm->map_request_mode = mode;
1234 vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add)
1236 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1237 u32 locator_set_index = ~0;
1241 if (vnet_lisp_enable_disable_status () == 0)
1243 clib_warning ("LISP is disabled!");
1244 return VNET_API_ERROR_LISP_DISABLED;
1247 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
1250 clib_warning ("locator-set %v doesn't exist", locator_set_name);
1253 locator_set_index = p[0];
1257 pool_get (lcm->mapping_pool, m);
1258 m->locator_set_index = locator_set_index;
1260 lcm->pitr_map_index = m - lcm->mapping_pool;
1262 /* enable pitr mode */
1267 /* remove pitr mapping */
1268 pool_put_index (lcm->mapping_pool, lcm->pitr_map_index);
1270 /* disable pitr mode */
1276 /* cleans locator to locator-set data and removes locators not part of
1277 * any locator-set */
1279 clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi)
1281 u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes, *to_be_deleted = 0;
1282 locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool, lsi);
1283 for (i = 0; i < vec_len (ls->locator_indices); i++)
1285 loc_indexp = vec_elt_at_index (ls->locator_indices, i);
1286 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets,
1288 for (j = 0; j < vec_len (ls_indexes[0]); j++)
1290 ls_indexp = vec_elt_at_index (ls_indexes[0], j);
1291 if (ls_indexp[0] == lsi)
1295 /* delete index for removed locator-set */
1296 vec_del1 (ls_indexes[0], j);
1298 /* delete locator if it's part of no locator-set */
1299 if (vec_len (ls_indexes[0]) == 0)
1301 pool_put_index (lcm->locator_pool, loc_indexp[0]);
1302 vec_add1 (to_be_deleted, i);
1308 for (i = 0; i < vec_len (to_be_deleted); i++)
1310 loc_indexp = vec_elt_at_index (to_be_deleted, i);
1311 vec_del1 (ls->locator_indices, loc_indexp[0]);
1313 vec_free (to_be_deleted);
1317 static inline uword *
1318 get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p)
1320 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1325 /* find locator-set */
1328 p = hash_get_mem (lcm->locator_set_index_by_name, a->name);
1339 is_locator_in_locator_set (lisp_cp_main_t * lcm, locator_set_t * ls,
1345 ASSERT (ls != NULL);
1346 ASSERT (loc != NULL);
1348 vec_foreach (locit, ls->locator_indices)
1350 itloc = pool_elt_at_index (lcm->locator_pool, locit[0]);
1351 if ((ls->local && itloc->sw_if_index == loc->sw_if_index) ||
1352 (!ls->local && !gid_address_cmp (&itloc->address, &loc->address)))
1354 clib_warning ("Duplicate locator");
1355 return VNET_API_ERROR_VALUE_EXIST;
1363 remove_locator_from_locator_set (locator_set_t * ls, u32 * locit,
1364 u32 ls_index, u32 loc_id)
1366 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1367 u32 **ls_indexes = NULL;
1369 ASSERT (ls != NULL);
1370 ASSERT (locit != NULL);
1372 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets, locit[0]);
1373 pool_put_index (lcm->locator_pool, locit[0]);
1374 vec_del1 (ls->locator_indices, loc_id);
1375 vec_del1 (ls_indexes[0], ls_index);
1379 vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a,
1380 locator_set_t * ls, u32 * ls_result)
1382 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1383 locator_t *loc = NULL, *itloc = NULL;
1384 uword _p = (u32) ~ 0, *p = &_p;
1385 u32 loc_index = ~0, ls_index = ~0, *locit = NULL, **ls_indexes = NULL;
1391 if (vnet_lisp_enable_disable_status () == 0)
1393 clib_warning ("LISP is disabled!");
1394 return VNET_API_ERROR_LISP_DISABLED;
1397 p = get_locator_set_index (a, p);
1400 clib_warning ("locator-set %v doesn't exist", a->name);
1401 return VNET_API_ERROR_INVALID_ARGUMENT;
1406 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1409 clib_warning ("locator-set %d to be overwritten doesn't exist!",
1411 return VNET_API_ERROR_INVALID_ARGUMENT;
1418 ls_result[0] = p[0];
1420 /* allocate locators */
1421 vec_foreach (itloc, a->locators)
1423 ret = is_locator_in_locator_set (lcm, ls, itloc);
1429 pool_get (lcm->locator_pool, loc);
1431 loc_index = loc - lcm->locator_pool;
1433 vec_add1 (ls->locator_indices, loc_index);
1435 vec_validate (lcm->locator_to_locator_sets, loc_index);
1436 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets,
1438 vec_add1 (ls_indexes[0], p[0]);
1445 itloc = a->locators;
1447 vec_foreach (locit, ls->locator_indices)
1449 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
1451 if (loc->local && loc->sw_if_index == itloc->sw_if_index)
1453 remove_locator_from_locator_set (ls, locit, ls_index, loc_id);
1455 if (0 == loc->local &&
1456 !gid_address_cmp (&loc->address, &itloc->address))
1458 remove_locator_from_locator_set (ls, locit, ls_index, loc_id);
1469 vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
1472 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1474 uword _p = (u32) ~ 0, *p = &_p;
1479 if (vnet_lisp_enable_disable_status () == 0)
1481 clib_warning ("LISP is disabled!");
1482 return VNET_API_ERROR_LISP_DISABLED;
1487 p = get_locator_set_index (a, p);
1490 if (p && p[0] != (u32) ~ 0)
1492 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1495 clib_warning ("locator-set %d to be overwritten doesn't exist!",
1500 /* clean locator to locator-set vectors and remove locators if
1501 * they're not part of another locator-set */
1502 clean_locator_to_locator_set (lcm, p[0]);
1504 /* remove locator indices from locator set */
1505 vec_free (ls->locator_indices);
1510 ls_result[0] = p[0];
1512 /* new locator-set */
1515 pool_get (lcm->locator_set_pool, ls);
1516 memset (ls, 0, sizeof (*ls));
1517 ls_index = ls - lcm->locator_set_pool;
1521 ls->name = vec_dup (a->name);
1523 if (!lcm->locator_set_index_by_name)
1524 lcm->locator_set_index_by_name = hash_create_vec (
1532 hash_set_mem (lcm->locator_set_index_by_name, ls->name,
1535 /* mark as local locator-set */
1536 vec_add1 (lcm->local_locator_set_indexes, ls_index);
1538 ls->local = a->local;
1540 ls_result[0] = ls_index;
1543 ret = vnet_lisp_add_del_locator (a, ls, NULL);
1551 p = get_locator_set_index (a, p);
1554 clib_warning ("locator-set %v doesn't exists", a->name);
1558 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1561 clib_warning ("locator-set with index %d doesn't exists", p[0]);
1565 if (lcm->mreq_itr_rlocs == p[0])
1567 clib_warning ("Can't delete the locator-set used to constrain "
1568 "the itr-rlocs in map-requests!");
1572 if (vec_len (lcm->locator_set_to_eids) != 0)
1574 eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids, p[0]);
1575 if (vec_len (eid_indexes[0]) != 0)
1578 ("Can't delete a locator that supports a mapping!");
1583 /* clean locator to locator-sets data */
1584 clean_locator_to_locator_set (lcm, p[0]);
1590 vec_foreach_index (it, lcm->local_locator_set_indexes)
1592 lsi = vec_elt (lcm->local_locator_set_indexes, it);
1595 vec_del1 (lcm->local_locator_set_indexes, it);
1599 hash_unset_mem (lcm->locator_set_index_by_name, ls->name);
1601 vec_free (ls->name);
1602 vec_free (ls->locator_indices);
1603 pool_put (lcm->locator_set_pool, ls);
1609 vnet_lisp_rloc_probe_enable_disable (u8 is_enable)
1611 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1613 lcm->rloc_probing = is_enable;
1618 vnet_lisp_map_register_enable_disable (u8 is_enable)
1620 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1622 lcm->map_registering = is_enable;
1627 vnet_lisp_enable_disable (u8 is_enable)
1630 clib_error_t *error = 0;
1631 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1632 vnet_lisp_gpe_enable_disable_args_t _a, *a = &_a;
1634 a->is_en = is_enable;
1635 error = vnet_lisp_gpe_enable_disable (a);
1638 return clib_error_return (0, "failed to %s data-plane!",
1639 a->is_en ? "enable" : "disable");
1644 /* enable all l2 and l3 ifaces */
1647 hash_foreach(vni, dp_table, lcm->table_id_by_vni, ({
1648 dp_add_del_iface(lcm, vni, 0, 1);
1650 hash_foreach(vni, dp_table, lcm->bd_id_by_vni, ({
1651 dp_add_del_iface(lcm, vni, /* is_l2 */ 1, 1);
1657 /* clear interface table */
1658 hash_free (lcm->fwd_entry_by_mapping_index);
1659 pool_free (lcm->fwd_entry_pool);
1662 /* update global flag */
1663 lcm->is_enabled = is_enable;
1669 vnet_lisp_enable_disable_status (void)
1671 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1672 return lcm->is_enabled;
1676 vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
1678 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1680 lisp_msmr_t _mr, *mr = &_mr;
1682 if (vnet_lisp_enable_disable_status () == 0)
1684 clib_warning ("LISP is disabled!");
1685 return VNET_API_ERROR_LISP_DISABLED;
1691 if (get_map_resolver (&a->address))
1693 clib_warning ("map-resolver %U already exists!", format_ip_address,
1698 memset (mr, 0, sizeof (*mr));
1699 ip_address_copy (&mr->address, &a->address);
1700 vec_add1 (lcm->map_resolvers, *mr);
1702 if (vec_len (lcm->map_resolvers) == 1)
1703 lcm->do_map_resolver_election = 1;
1707 for (i = 0; i < vec_len (lcm->map_resolvers); i++)
1709 mr = vec_elt_at_index (lcm->map_resolvers, i);
1710 if (!ip_address_cmp (&mr->address, &a->address))
1712 if (!ip_address_cmp (&mr->address, &lcm->active_map_resolver))
1713 lcm->do_map_resolver_election = 1;
1715 vec_del1 (lcm->map_resolvers, i);
1724 vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a)
1726 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1729 if (vnet_lisp_enable_disable_status () == 0)
1731 clib_warning ("LISP is disabled!");
1732 return VNET_API_ERROR_LISP_DISABLED;
1737 p = hash_get_mem (lcm->locator_set_index_by_name, a->locator_set_name);
1740 clib_warning ("locator-set %v doesn't exist", a->locator_set_name);
1741 return VNET_API_ERROR_INVALID_ARGUMENT;
1744 lcm->mreq_itr_rlocs = p[0];
1748 lcm->mreq_itr_rlocs = ~0;
1754 /* Statistics (not really errors) */
1755 #define foreach_lisp_cp_lookup_error \
1757 _(MAP_REQUESTS_SENT, "map-request sent")
1759 static char *lisp_cp_lookup_error_strings[] = {
1760 #define _(sym,string) string,
1761 foreach_lisp_cp_lookup_error
1767 #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
1768 foreach_lisp_cp_lookup_error
1770 LISP_CP_LOOKUP_N_ERROR,
1771 } lisp_cp_lookup_error_t;
1775 LISP_CP_LOOKUP_NEXT_DROP,
1776 LISP_CP_LOOKUP_N_NEXT,
1777 } lisp_cp_lookup_next_t;
1781 gid_address_t dst_eid;
1782 ip_address_t map_resolver_ip;
1783 } lisp_cp_lookup_trace_t;
1786 format_lisp_cp_lookup_trace (u8 * s, va_list * args)
1788 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
1789 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
1790 lisp_cp_lookup_trace_t *t = va_arg (*args, lisp_cp_lookup_trace_t *);
1792 s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
1793 format_ip_address, &t->map_resolver_ip, format_gid_address,
1799 get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip,
1800 ip_address_t * sloc)
1805 if (vec_len (lcm->map_resolvers) == 0)
1807 clib_warning ("No map-resolver configured");
1811 /* find the first mr ip we have a route to and the ip of the
1812 * iface that has a route to it */
1813 vec_foreach (mrit, lcm->map_resolvers)
1816 if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, a, sloc))
1818 ip_address_copy (mr_ip, a);
1820 /* also update globals */
1825 clib_warning ("Can't find map-resolver and local interface ip!");
1829 static gid_address_t *
1830 build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
1836 ip_interface_address_t *ia = 0;
1837 gid_address_t gid_data, *gid = &gid_data;
1838 gid_address_t *rlocs = 0;
1839 ip_prefix_t *ippref = &gid_address_ippref (gid);
1840 ip_address_t *rloc = &ip_prefix_addr (ippref);
1842 memset (gid, 0, sizeof (gid[0]));
1843 gid_address_type (gid) = GID_ADDR_IP_PREFIX;
1844 for (i = 0; i < vec_len (loc_set->locator_indices); i++)
1846 loc_indexp = vec_elt_at_index (loc_set->locator_indices, i);
1847 loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
1849 /* Add ipv4 locators first TODO sort them */
1852 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
1853 loc->sw_if_index, 1 /* unnumbered */,
1855 addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
1856 ip_address_set (rloc, addr, IP4);
1857 ip_prefix_len (ippref) = 32;
1858 ip_prefix_normalize (ippref);
1859 vec_add1 (rlocs, gid[0]);
1862 /* Add ipv6 locators */
1863 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
1864 loc->sw_if_index, 1 /* unnumbered */,
1866 addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
1867 ip_address_set (rloc, addr, IP6);
1868 ip_prefix_len (ippref) = 128;
1869 ip_prefix_normalize (ippref);
1870 vec_add1 (rlocs, gid[0]);
1878 static vlib_buffer_t *
1879 build_map_request (lisp_cp_main_t * lcm, gid_address_t * deid,
1880 ip_address_t * sloc, ip_address_t * rloc,
1881 gid_address_t * itr_rlocs, u64 * nonce_res, u32 * bi_res)
1885 vlib_main_t *vm = lcm->vlib_main;
1887 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
1889 clib_warning ("Can't allocate buffer for Map-Request!");
1893 b = vlib_get_buffer (vm, bi);
1895 /* leave some space for the encap headers */
1896 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
1899 lisp_msg_put_mreq (lcm, b, NULL, deid, itr_rlocs, 0 /* smr invoked */ ,
1900 1 /* rloc probe */ , nonce_res);
1902 /* push outer ip header */
1903 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc,
1911 static vlib_buffer_t *
1912 build_encapsulated_map_request (lisp_cp_main_t * lcm,
1913 gid_address_t * seid, gid_address_t * deid,
1914 locator_set_t * loc_set, ip_address_t * mr_ip,
1915 ip_address_t * sloc, u8 is_smr_invoked,
1916 u64 * nonce_res, u32 * bi_res)
1920 gid_address_t *rlocs = 0;
1921 vlib_main_t *vm = lcm->vlib_main;
1923 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
1925 clib_warning ("Can't allocate buffer for Map-Request!");
1929 b = vlib_get_buffer (vm, bi);
1931 /* leave some space for the encap headers */
1932 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
1935 rlocs = build_itr_rloc_list (lcm, loc_set);
1937 if (MR_MODE_SRC_DST == lcm->map_request_mode
1938 && GID_ADDR_SRC_DST != gid_address_type (deid))
1941 memset (&sd, 0, sizeof (sd));
1942 build_src_dst (&sd, seid, deid);
1943 lisp_msg_put_mreq (lcm, b, seid, &sd, rlocs, is_smr_invoked,
1944 0 /* rloc probe */ , nonce_res);
1949 lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked,
1950 0 /* rloc probe */ , nonce_res);
1953 /* push ecm: udp-ip-lisp */
1954 lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid);
1956 /* push outer ip header */
1957 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc,
1967 reset_pending_mr_counters (pending_map_request_t * r)
1969 r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME;
1974 elect_map_resolver (lisp_cp_main_t * lcm)
1978 vec_foreach (mr, lcm->map_resolvers)
1982 ip_address_copy (&lcm->active_map_resolver, &mr->address);
1983 lcm->do_map_resolver_election = 0;
1991 free_map_register_records (mapping_t * maps)
1994 vec_foreach (map, maps) vec_free (map->locators);
2000 add_locators (lisp_cp_main_t * lcm, mapping_t * m, u32 locator_set_index,
2001 ip_address_t * probed_loc)
2004 locator_t *loc, new;
2005 ip_interface_address_t *ia = 0;
2007 ip_address_t *new_ip = &gid_address_ip (&new.address);
2010 locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool,
2012 vec_foreach (li, ls->locator_indices)
2014 loc = pool_elt_at_index (lcm->locator_pool, li[0]);
2019 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
2020 loc->sw_if_index, 1 /* unnumbered */,
2022 addr = ip_interface_address_get_address (&lcm->im4->lookup_main,
2024 ip_address_set (new_ip, addr, IP4);
2027 /* Add ipv6 locators */
2028 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
2029 loc->sw_if_index, 1 /* unnumbered */,
2031 addr = ip_interface_address_get_address (&lcm->im6->lookup_main,
2033 ip_address_set (new_ip, addr, IP6);
2037 if (probed_loc && ip_address_cmp (probed_loc, new_ip) == 0)
2040 vec_add1 (m->locators, new);
2045 build_map_register_record_list (lisp_cp_main_t * lcm)
2047 mapping_t *recs = 0, rec, *m;
2050 pool_foreach(m, lcm->mapping_pool,
2052 /* for now build only local mappings */
2057 add_locators (lcm, &rec, m->locator_set_index, NULL);
2058 vec_add1 (recs, rec);
2066 update_map_register_auth_data (map_register_hdr_t * map_reg_hdr,
2067 lisp_key_type_t key_id, u8 * key,
2068 u16 auth_data_len, u32 msg_len)
2070 MREG_KEY_ID (map_reg_hdr) = clib_host_to_net_u16 (key_id);
2071 MREG_AUTH_DATA_LEN (map_reg_hdr) = clib_host_to_net_u16 (auth_data_len);
2073 unsigned char *result = HMAC (get_encrypt_fcn (key_id), key, vec_len (key),
2074 (unsigned char *) map_reg_hdr, msg_len, NULL,
2076 clib_memcpy (MREG_DATA (map_reg_hdr), result, auth_data_len);
2081 static vlib_buffer_t *
2082 build_map_register (lisp_cp_main_t * lcm, ip_address_t * sloc,
2083 ip_address_t * ms_ip, u64 * nonce_res, u8 want_map_notif,
2084 mapping_t * records, lisp_key_type_t key_id, u8 * key,
2089 u32 bi, auth_data_len = 0, msg_len = 0;
2090 vlib_main_t *vm = lcm->vlib_main;
2092 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
2094 clib_warning ("Can't allocate buffer for Map-Register!");
2098 b = vlib_get_buffer (vm, bi);
2100 /* leave some space for the encap headers */
2101 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
2103 auth_data_len = auth_data_len_by_key_id (key_id);
2104 map_reg_hdr = lisp_msg_put_map_register (b, records, want_map_notif,
2105 auth_data_len, nonce_res,
2108 update_map_register_auth_data (map_reg_hdr, key_id, key, auth_data_len,
2111 /* push outer ip header */
2112 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc,
2120 get_egress_map_resolver_ip (lisp_cp_main_t * lcm, ip_address_t * ip)
2123 while (lcm->do_map_resolver_election
2124 | (0 == ip_fib_get_first_egress_ip_for_dst (lcm,
2125 &lcm->active_map_resolver,
2128 if (0 == elect_map_resolver (lcm))
2129 /* all map resolvers are down */
2131 /* restart MR checking by marking all of them up */
2132 vec_foreach (mr, lcm->map_resolvers) mr->is_down = 0;
2139 /* CP output statistics */
2140 #define foreach_lisp_cp_output_error \
2141 _(MAP_REGISTERS_SENT, "map-registers sent") \
2142 _(RLOC_PROBES_SENT, "rloc-probes sent")
2144 static char *lisp_cp_output_error_strings[] = {
2145 #define _(sym,string) string,
2146 foreach_lisp_cp_output_error
2152 #define _(sym,str) LISP_CP_OUTPUT_ERROR_##sym,
2153 foreach_lisp_cp_output_error
2155 LISP_CP_OUTPUT_N_ERROR,
2156 } lisp_cp_output_error_t;
2159 lisp_cp_output (vlib_main_t * vm, vlib_node_runtime_t * node,
2160 vlib_frame_t * from_frame)
2165 /* dummy node used only for statistics */
2167 VLIB_REGISTER_NODE (lisp_cp_output_node) = {
2168 .function = lisp_cp_output,
2169 .name = "lisp-cp-output",
2170 .vector_size = sizeof (u32),
2171 .format_trace = format_lisp_cp_input_trace,
2172 .type = VLIB_NODE_TYPE_INTERNAL,
2174 .n_errors = LISP_CP_OUTPUT_N_ERROR,
2175 .error_strings = lisp_cp_output_error_strings,
2177 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
2180 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
2186 send_rloc_probe (lisp_cp_main_t * lcm, gid_address_t * deid,
2187 u32 local_locator_set_index, ip_address_t * sloc,
2188 ip_address_t * rloc)
2195 u32 next_index, *to_next;
2196 gid_address_t *itr_rlocs;
2198 ls = pool_elt_at_index (lcm->locator_set_pool, local_locator_set_index);
2199 itr_rlocs = build_itr_rloc_list (lcm, ls);
2201 b = build_map_request (lcm, deid, sloc, rloc, itr_rlocs, &nonce, &bi);
2202 vec_free (itr_rlocs);
2206 vnet_buffer (b)->sw_if_index[VLIB_TX] = 0;
2208 next_index = (ip_addr_version (&lcm->active_map_resolver) == IP4) ?
2209 ip4_lookup_node.index : ip6_lookup_node.index;
2211 f = vlib_get_frame_to_node (lcm->vlib_main, next_index);
2213 /* Enqueue the packet */
2214 to_next = vlib_frame_vector_args (f);
2217 vlib_put_frame_to_node (lcm->vlib_main, next_index, f);
2219 hash_set (lcm->map_register_messages_by_nonce, nonce, 0);
2224 send_rloc_probes (lisp_cp_main_t * lcm)
2230 u32 si, rloc_probes_sent = 0;
2233 pool_foreach (e, lcm->fwd_entry_pool,
2235 if (vec_len (e->locator_pairs) == 0)
2238 si = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &e->leid);
2241 clib_warning ("internal error: cannot find local eid %U in "
2242 "map-cache!", format_gid_address, &e->leid);
2245 lm = pool_elt_at_index (lcm->mapping_pool, si);
2247 /* get the best (lowest) priority */
2248 lprio = e->locator_pairs[0].priority;
2250 /* send rloc-probe for pair(s) with the best remote locator priority */
2251 vec_foreach (lp, e->locator_pairs)
2253 if (lp->priority != lprio)
2256 /* get first remote locator */
2257 send_rloc_probe (lcm, &e->reid, lm->locator_set_index, &lp->lcl_loc,
2264 vlib_node_increment_counter (vlib_get_main (), lisp_cp_output_node.index,
2265 LISP_CP_OUTPUT_ERROR_RLOC_PROBES_SENT,
2271 send_map_register (lisp_cp_main_t * lcm, u8 want_map_notif)
2273 u32 bi, map_registers_sent = 0;
2278 u32 next_index, *to_next;
2279 ip_address_t *ms = 0;
2280 mapping_t *records, *r, *g;
2282 // TODO: support multiple map servers and do election
2283 if (0 == vec_len (lcm->map_servers))
2286 ms = &lcm->map_servers[0].address;
2288 if (0 == ip_fib_get_first_egress_ip_for_dst (lcm, ms, &sloc))
2290 clib_warning ("no eligible interface address found for %U!",
2291 format_ip_address, &lcm->map_servers[0]);
2295 records = build_map_register_record_list (lcm);
2299 vec_foreach (r, records)
2302 u8 key_id = r->key_id;
2305 continue; /* no secret key -> map-register cannot be sent */
2308 // TODO: group mappings that share common key
2310 b = build_map_register (lcm, &sloc, ms, &nonce, want_map_notif, g,
2316 vnet_buffer (b)->sw_if_index[VLIB_TX] = 0;
2318 next_index = (ip_addr_version (&lcm->active_map_resolver) == IP4) ?
2319 ip4_lookup_node.index : ip6_lookup_node.index;
2321 f = vlib_get_frame_to_node (lcm->vlib_main, next_index);
2323 /* Enqueue the packet */
2324 to_next = vlib_frame_vector_args (f);
2327 vlib_put_frame_to_node (lcm->vlib_main, next_index, f);
2328 map_registers_sent++;
2330 hash_set (lcm->map_register_messages_by_nonce, nonce, 0);
2332 free_map_register_records (records);
2334 vlib_node_increment_counter (vlib_get_main (), lisp_cp_output_node.index,
2335 LISP_CP_OUTPUT_ERROR_MAP_REGISTERS_SENT,
2336 map_registers_sent);
2341 #define send_encapsulated_map_request(lcm, seid, deid, smr) \
2342 _send_encapsulated_map_request(lcm, seid, deid, smr, 0)
2344 #define resend_encapsulated_map_request(lcm, seid, deid, smr) \
2345 _send_encapsulated_map_request(lcm, seid, deid, smr, 1)
2348 _send_encapsulated_map_request (lisp_cp_main_t * lcm,
2349 gid_address_t * seid, gid_address_t * deid,
2350 u8 is_smr_invoked, u8 is_resend)
2352 u32 next_index, bi = 0, *to_next, map_index;
2356 locator_set_t *loc_set;
2358 pending_map_request_t *pmr, *duplicate_pmr = 0;
2362 /* if there is already a pending request remember it */
2365 pool_foreach(pmr, lcm->pending_map_requests_pool,
2367 if (!gid_address_cmp (&pmr->src, seid)
2368 && !gid_address_cmp (&pmr->dst, deid))
2370 duplicate_pmr = pmr;
2376 if (!is_resend && duplicate_pmr)
2378 /* don't send the request if there is a pending map request already */
2382 /* get locator-set for seid */
2383 if (!lcm->lisp_pitr)
2385 map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
2386 if (map_index == ~0)
2388 clib_warning ("No local mapping found in eid-table for %U!",
2389 format_gid_address, seid);
2393 map = pool_elt_at_index (lcm->mapping_pool, map_index);
2398 ("Mapping found for src eid %U is not marked as local!",
2399 format_gid_address, seid);
2402 ls_index = map->locator_set_index;
2406 map_index = lcm->pitr_map_index;
2407 map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
2408 ls_index = map->locator_set_index;
2411 /* overwrite locator set if map-request itr-rlocs configured */
2412 if (~0 != lcm->mreq_itr_rlocs)
2414 ls_index = lcm->mreq_itr_rlocs;
2417 loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index);
2419 if (get_egress_map_resolver_ip (lcm, &sloc) < 0)
2422 duplicate_pmr->to_be_removed = 1;
2426 /* build the encapsulated map request */
2427 b = build_encapsulated_map_request (lcm, seid, deid, loc_set,
2428 &lcm->active_map_resolver,
2429 &sloc, is_smr_invoked, &nonce, &bi);
2434 /* set fib index to default and lookup node */
2435 vnet_buffer (b)->sw_if_index[VLIB_TX] = 0;
2436 next_index = (ip_addr_version (&lcm->active_map_resolver) == IP4) ?
2437 ip4_lookup_node.index : ip6_lookup_node.index;
2439 f = vlib_get_frame_to_node (lcm->vlib_main, next_index);
2441 /* Enqueue the packet */
2442 to_next = vlib_frame_vector_args (f);
2445 vlib_put_frame_to_node (lcm->vlib_main, next_index, f);
2448 /* if there is a pending request already update it */
2450 if (clib_fifo_elts (duplicate_pmr->nonces) >= PENDING_MREQ_QUEUE_LEN)
2452 /* remove the oldest nonce */
2453 u64 CLIB_UNUSED (tmp), *nonce_del;
2454 nonce_del = clib_fifo_head (duplicate_pmr->nonces);
2455 hash_unset (lcm->pending_map_requests_by_nonce, nonce_del[0]);
2456 clib_fifo_sub1 (duplicate_pmr->nonces, tmp);
2459 clib_fifo_add1 (duplicate_pmr->nonces, nonce);
2460 hash_set (lcm->pending_map_requests_by_nonce, nonce,
2461 duplicate_pmr - lcm->pending_map_requests_pool);
2465 /* add map-request to pending requests table */
2466 pool_get (lcm->pending_map_requests_pool, pmr);
2467 memset (pmr, 0, sizeof (*pmr));
2468 gid_address_copy (&pmr->src, seid);
2469 gid_address_copy (&pmr->dst, deid);
2470 clib_fifo_add1 (pmr->nonces, nonce);
2471 pmr->is_smr_invoked = is_smr_invoked;
2472 reset_pending_mr_counters (pmr);
2473 hash_set (lcm->pending_map_requests_by_nonce, nonce,
2474 pmr - lcm->pending_map_requests_pool);
2481 get_src_and_dst_ip (void *hdr, ip_address_t * src, ip_address_t * dst)
2483 ip4_header_t *ip4 = hdr;
2486 if ((ip4->ip_version_and_header_length & 0xF0) == 0x40)
2488 ip_address_set (src, &ip4->src_address, IP4);
2489 ip_address_set (dst, &ip4->dst_address, IP4);
2494 ip_address_set (src, &ip6->src_address, IP6);
2495 ip_address_set (dst, &ip6->dst_address, IP6);
2500 lisp_get_vni_from_buffer_ip (lisp_cp_main_t * lcm, vlib_buffer_t * b,
2504 u32 vni = ~0, table_id = ~0;
2506 table_id = fib_table_get_table_id_for_sw_if_index ((version ==
2507 IP4 ? FIB_PROTOCOL_IP4 :
2513 vnip = hash_get (lcm->vni_by_table_id, table_id);
2517 clib_warning ("vrf %d is not mapped to any vni!", table_id);
2523 lisp_get_vni_from_buffer_eth (lisp_cp_main_t * lcm, vlib_buffer_t * b)
2529 l2input_main_t *l2im = &l2input_main;
2530 l2_input_config_t *config;
2531 l2_bridge_domain_t *bd_config;
2533 sw_if_index0 = vnet_buffer (b)->sw_if_index[VLIB_RX];
2534 config = vec_elt_at_index (l2im->configs, sw_if_index0);
2535 bd_config = vec_elt_at_index (l2im->bd_configs, config->bd_index);
2537 vnip = hash_get (lcm->vni_by_bd_id, bd_config->bd_id);
2541 clib_warning ("bridge domain %d is not mapped to any vni!",
2548 get_src_and_dst_eids_from_buffer (lisp_cp_main_t * lcm, vlib_buffer_t * b,
2549 gid_address_t * src, gid_address_t * dst)
2554 memset (src, 0, sizeof (*src));
2555 memset (dst, 0, sizeof (*dst));
2556 type = vnet_buffer (b)->lisp.overlay_afi;
2558 if (LISP_AFI_IP == type || LISP_AFI_IP6 == type)
2561 u8 version, preflen;
2563 gid_address_type (src) = GID_ADDR_IP_PREFIX;
2564 gid_address_type (dst) = GID_ADDR_IP_PREFIX;
2566 ip = vlib_buffer_get_current (b);
2567 get_src_and_dst_ip (ip, &gid_address_ip (src), &gid_address_ip (dst));
2569 version = gid_address_ip_version (src);
2570 preflen = ip_address_max_len (version);
2571 gid_address_ippref_len (src) = preflen;
2572 gid_address_ippref_len (dst) = preflen;
2574 vni = lisp_get_vni_from_buffer_ip (lcm, b, version);
2575 gid_address_vni (dst) = vni;
2576 gid_address_vni (src) = vni;
2578 else if (LISP_AFI_MAC == type)
2580 ethernet_header_t *eh;
2582 eh = vlib_buffer_get_current (b);
2584 gid_address_type (src) = GID_ADDR_MAC;
2585 gid_address_type (dst) = GID_ADDR_MAC;
2586 mac_copy (&gid_address_mac (src), eh->src_address);
2587 mac_copy (&gid_address_mac (dst), eh->dst_address);
2590 vni = lisp_get_vni_from_buffer_eth (lcm, b);
2592 gid_address_vni (dst) = vni;
2593 gid_address_vni (src) = vni;
2598 lisp_cp_lookup_inline (vlib_main_t * vm,
2599 vlib_node_runtime_t * node,
2600 vlib_frame_t * from_frame, int overlay)
2602 u32 *from, *to_next_drop, di, si;
2603 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2604 u32 pkts_mapped = 0;
2605 uword n_left_from, n_left_to_next_drop;
2607 from = vlib_frame_vector_args (from_frame);
2608 n_left_from = from_frame->n_vectors;
2610 while (n_left_from > 0)
2612 vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
2613 to_next_drop, n_left_to_next_drop);
2615 while (n_left_from > 0 && n_left_to_next_drop > 0)
2619 gid_address_t src, dst;
2624 to_next_drop[0] = pi0;
2626 n_left_to_next_drop -= 1;
2628 b0 = vlib_get_buffer (vm, pi0);
2629 b0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
2630 vnet_buffer (b0)->lisp.overlay_afi = overlay;
2632 /* src/dst eid pair */
2633 get_src_and_dst_eids_from_buffer (lcm, b0, &src, &dst);
2635 /* if we have remote mapping for destination already in map-chache
2636 add forwarding tunnel directly. If not send a map-request */
2637 di = gid_dictionary_sd_lookup (&lcm->mapping_index_by_gid, &dst,
2641 mapping_t *m = vec_elt_at_index (lcm->mapping_pool, di);
2642 /* send a map-request also in case of negative mapping entry
2643 with corresponding action */
2644 if (m->action == LISP_SEND_MAP_REQUEST)
2646 /* send map-request */
2647 queue_map_request (&src, &dst, 0 /* smr_invoked */ ,
2648 0 /* is_resend */ );
2653 si = gid_dictionary_lookup (&lcm->mapping_index_by_gid,
2657 dp_add_fwd_entry_from_mt (si, di);
2663 /* send map-request */
2664 queue_map_request (&src, &dst, 0 /* smr_invoked */ ,
2665 0 /* is_resend */ );
2669 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
2671 lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, b0,
2674 memset (tr, 0, sizeof (*tr));
2675 gid_address_copy (&tr->dst_eid, &dst);
2676 ip_address_copy (&tr->map_resolver_ip,
2677 &lcm->active_map_resolver);
2679 gid_address_free (&dst);
2680 gid_address_free (&src);
2683 vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
2684 n_left_to_next_drop);
2686 vlib_node_increment_counter (vm, node->node_index,
2687 LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
2689 return from_frame->n_vectors;
2693 lisp_cp_lookup_ip4 (vlib_main_t * vm,
2694 vlib_node_runtime_t * node, vlib_frame_t * from_frame)
2696 return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_IP));
2700 lisp_cp_lookup_ip6 (vlib_main_t * vm,
2701 vlib_node_runtime_t * node, vlib_frame_t * from_frame)
2703 return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_IP6));
2707 lisp_cp_lookup_l2 (vlib_main_t * vm,
2708 vlib_node_runtime_t * node, vlib_frame_t * from_frame)
2710 return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_MAC));
2714 VLIB_REGISTER_NODE (lisp_cp_lookup_ip4_node) = {
2715 .function = lisp_cp_lookup_ip4,
2716 .name = "lisp-cp-lookup-ip4",
2717 .vector_size = sizeof (u32),
2718 .format_trace = format_lisp_cp_lookup_trace,
2719 .type = VLIB_NODE_TYPE_INTERNAL,
2721 .n_errors = LISP_CP_LOOKUP_N_ERROR,
2722 .error_strings = lisp_cp_lookup_error_strings,
2724 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
2727 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
2733 VLIB_REGISTER_NODE (lisp_cp_lookup_ip6_node) = {
2734 .function = lisp_cp_lookup_ip6,
2735 .name = "lisp-cp-lookup-ip6",
2736 .vector_size = sizeof (u32),
2737 .format_trace = format_lisp_cp_lookup_trace,
2738 .type = VLIB_NODE_TYPE_INTERNAL,
2740 .n_errors = LISP_CP_LOOKUP_N_ERROR,
2741 .error_strings = lisp_cp_lookup_error_strings,
2743 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
2746 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
2752 VLIB_REGISTER_NODE (lisp_cp_lookup_l2_node) = {
2753 .function = lisp_cp_lookup_l2,
2754 .name = "lisp-cp-lookup-l2",
2755 .vector_size = sizeof (u32),
2756 .format_trace = format_lisp_cp_lookup_trace,
2757 .type = VLIB_NODE_TYPE_INTERNAL,
2759 .n_errors = LISP_CP_LOOKUP_N_ERROR,
2760 .error_strings = lisp_cp_lookup_error_strings,
2762 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
2765 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
2770 /* lisp_cp_input statistics */
2771 #define foreach_lisp_cp_input_error \
2773 _(RLOC_PROBE_REQ_RECEIVED, "rloc-probe requests received") \
2774 _(RLOC_PROBE_REP_RECEIVED, "rloc-probe replies received") \
2775 _(MAP_NOTIFIES_RECEIVED, "map-notifies received") \
2776 _(MAP_REPLIES_RECEIVED, "map-replies received")
2778 static char *lisp_cp_input_error_strings[] = {
2779 #define _(sym,string) string,
2780 foreach_lisp_cp_input_error
2786 #define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
2787 foreach_lisp_cp_input_error
2789 LISP_CP_INPUT_N_ERROR,
2790 } lisp_cp_input_error_t;
2794 gid_address_t dst_eid;
2795 ip4_address_t map_resolver_ip;
2796 } lisp_cp_input_trace_t;
2799 format_lisp_cp_input_trace (u8 * s, va_list * args)
2801 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2802 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2803 CLIB_UNUSED (lisp_cp_input_trace_t * t) =
2804 va_arg (*args, lisp_cp_input_trace_t *);
2806 s = format (s, "LISP-CP-INPUT: TODO");
2811 remove_expired_mapping (lisp_cp_main_t * lcm, u32 mi)
2814 vnet_lisp_add_del_adjacency_args_t _adj_args, *adj_args = &_adj_args;
2815 memset (adj_args, 0, sizeof (adj_args[0]));
2817 m = pool_elt_at_index (lcm->mapping_pool, mi);
2819 gid_address_copy (&adj_args->reid, &m->eid);
2820 adj_args->is_add = 0;
2821 if (vnet_lisp_add_del_adjacency (adj_args))
2822 clib_warning ("failed to del adjacency!");
2824 vnet_lisp_add_del_mapping (&m->eid, 0, 0, 0, ~0, 0 /* is_add */ ,
2825 0 /* is_static */ , 0);
2826 mapping_delete_timer (lcm, mi);
2830 mapping_start_expiration_timer (lisp_cp_main_t * lcm, u32 mi,
2831 f64 expiration_time)
2834 u64 now = clib_cpu_time_now ();
2835 u64 cpu_cps = lcm->vlib_main->clib_time.clocks_per_second;
2836 u64 exp_clock_time = now + expiration_time * cpu_cps;
2838 m = pool_elt_at_index (lcm->mapping_pool, mi);
2841 timing_wheel_insert (&lcm->wheel, exp_clock_time, mi);
2845 map_records_arg_free (map_records_arg_t * a)
2848 vec_foreach (m, a->mappings)
2850 vec_free (m->locators);
2851 gid_address_free (&m->eid);
2858 process_map_reply (map_records_arg_t * a)
2861 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2862 u32 dst_map_index = 0;
2863 pending_map_request_t *pmr;
2867 if (a->is_rloc_probe)
2870 /* Check pending requests table and nonce */
2871 pmr_index = hash_get (lcm->pending_map_requests_by_nonce, a->nonce);
2874 clib_warning ("No pending map-request entry with nonce %lu!", a->nonce);
2877 pmr = pool_elt_at_index (lcm->pending_map_requests_pool, pmr_index[0]);
2879 vec_foreach (m, a->mappings)
2881 /* insert/update mappings cache */
2882 vnet_lisp_add_del_mapping (&m->eid, m->locators, m->action,
2883 m->authoritative, m->ttl,
2884 1, 0 /* is_static */ , &dst_map_index);
2886 /* try to program forwarding only if mapping saved or updated */
2887 if ((u32) ~ 0 != dst_map_index)
2889 vnet_lisp_add_del_adjacency_args_t _adj_args, *adj_args = &_adj_args;
2890 memset (adj_args, 0, sizeof (adj_args[0]));
2892 gid_address_copy (&adj_args->leid, &pmr->src);
2893 gid_address_copy (&adj_args->reid, &m->eid);
2894 adj_args->is_add = 1;
2895 if (vnet_lisp_add_del_adjacency (adj_args))
2896 clib_warning ("failed to add adjacency!");
2898 if ((u32) ~ 0 != m->ttl)
2899 mapping_start_expiration_timer (lcm, dst_map_index, m->ttl * 60);
2903 /* remove pending map request entry */
2906 clib_fifo_foreach (noncep, pmr->nonces, ({
2907 hash_unset(lcm->pending_map_requests_by_nonce, noncep[0]);
2911 clib_fifo_free (pmr->nonces);
2912 pool_put (lcm->pending_map_requests_pool, pmr);
2915 map_records_arg_free (a);
2920 is_auth_data_valid (map_notify_hdr_t * h, u32 msg_len,
2921 lisp_key_type_t key_id, u8 * key)
2927 auth_data_len = auth_data_len_by_key_id (key_id);
2928 if ((u16) ~ 0 == auth_data_len)
2930 clib_warning ("invalid length for key_id %d!", key_id);
2934 /* save auth data */
2935 vec_validate (auth_data, auth_data_len - 1);
2936 clib_memcpy (auth_data, MNOTIFY_DATA (h), auth_data_len);
2938 /* clear auth data */
2939 memset (MNOTIFY_DATA (h), 0, auth_data_len);
2941 /* get hash of the message */
2942 unsigned char *code = HMAC (get_encrypt_fcn (key_id), key, vec_len (key),
2943 (unsigned char *) h, msg_len, NULL, NULL);
2945 result = memcmp (code, auth_data, auth_data_len);
2947 vec_free (auth_data);
2953 process_map_notify (map_records_arg_t * a)
2955 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2958 pmr_index = hash_get (lcm->map_register_messages_by_nonce, a->nonce);
2961 clib_warning ("No pending map-register entry with nonce %lu!",
2966 map_records_arg_free (a);
2967 hash_unset (lcm->map_register_messages_by_nonce, a->nonce);
2971 get_mapping (lisp_cp_main_t * lcm, gid_address_t * e)
2975 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, e);
2978 clib_warning ("eid %U not found in map-cache!", unformat_gid_address,
2982 return pool_elt_at_index (lcm->mapping_pool, mi);
2986 * When map-notify is received it is necessary that all EIDs in the record
2987 * list share common key. The key is then used to verify authentication
2988 * data in map-notify message.
2991 map_record_integrity_check (lisp_cp_main_t * lcm, mapping_t * maps,
2992 u32 key_id, u8 ** key_out)
2994 u32 i, len = vec_len (maps);
2997 /* get key of the first mapping */
2998 m = get_mapping (lcm, &maps[0].eid);
3002 key_out[0] = m->key;
3004 for (i = 1; i < len; i++)
3006 m = get_mapping (lcm, &maps[i].eid);
3010 if (key_id != m->key_id || vec_cmp (m->key, key_out[0]))
3012 clib_warning ("keys does not match! %v, %v", key_out[0], m->key);
3020 parse_map_records (vlib_buffer_t * b, map_records_arg_t * a, u8 count)
3022 locator_t *locators = 0;
3028 /* parse record eid */
3029 for (i = 0; i < count; i++)
3031 len = lisp_msg_parse_mapping_record (b, &deid, &locators, NULL);
3034 clib_warning ("Failed to parse mapping record!");
3035 vec_foreach (loc, locators) locator_free (loc);
3036 vec_free (locators);
3040 m.locators = locators;
3041 gid_address_copy (&m.eid, &deid);
3042 vec_add1 (a->mappings, m);
3048 static map_records_arg_t *
3049 parse_map_notify (vlib_buffer_t * b)
3052 map_notify_hdr_t *mnotif_hdr;
3053 lisp_key_type_t key_id;
3054 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3057 u16 auth_data_len = 0;
3059 map_records_arg_t *a = clib_mem_alloc (sizeof (*a));
3061 memset (a, 0, sizeof (*a));
3062 mnotif_hdr = vlib_buffer_get_current (b);
3063 vlib_buffer_pull (b, sizeof (*mnotif_hdr));
3064 memset (&deid, 0, sizeof (deid));
3066 a->nonce = MNOTIFY_NONCE (mnotif_hdr);
3067 key_id = clib_net_to_host_u16 (MNOTIFY_KEY_ID (mnotif_hdr));
3068 auth_data_len = auth_data_len_by_key_id (key_id);
3070 /* advance buffer by authentication data */
3071 vlib_buffer_pull (b, auth_data_len);
3073 record_count = MNOTIFY_REC_COUNT (mnotif_hdr);
3074 rc = parse_map_records (b, a, record_count);
3077 map_records_arg_free (a);
3081 rc = map_record_integrity_check (lcm, a->mappings, key_id, &key);
3084 map_records_arg_free (a);
3088 /* verify authentication data */
3089 if (!is_auth_data_valid (mnotif_hdr, vlib_buffer_get_tail (b)
3090 - (u8 *) mnotif_hdr, key_id, key))
3092 clib_warning ("Map-notify auth data verification failed for nonce %lu!",
3094 map_records_arg_free (a);
3100 static vlib_buffer_t *
3101 build_map_reply (lisp_cp_main_t * lcm, ip_address_t * sloc,
3102 ip_address_t * dst, u64 nonce, u8 probe_bit,
3103 mapping_t * records, u16 dst_port, u32 * bi_res)
3107 vlib_main_t *vm = lcm->vlib_main;
3109 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
3111 clib_warning ("Can't allocate buffer for Map-Register!");
3115 b = vlib_get_buffer (vm, bi);
3117 /* leave some space for the encap headers */
3118 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
3120 lisp_msg_put_map_reply (b, records, nonce, probe_bit);
3122 /* push outer ip header */
3123 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, dst_port, sloc, dst);
3130 send_map_reply (lisp_cp_main_t * lcm, u32 mi, ip_address_t * dst,
3131 u8 probe_bit, u64 nonce, u16 dst_port,
3132 ip_address_t * probed_loc)
3138 u32 next_index, *to_next;
3139 mapping_t *records = 0, *m;
3141 m = pool_elt_at_index (lcm->mapping_pool, mi);
3145 vec_add1 (records, m[0]);
3146 add_locators (lcm, &records[0], m->locator_set_index, probed_loc);
3147 memset (&src, 0, sizeof (src));
3149 if (!ip_fib_get_first_egress_ip_for_dst (lcm, dst, &src))
3151 clib_warning ("can't find inteface address for %U", format_ip_address,
3156 b = build_map_reply (lcm, &src, dst, nonce, probe_bit, records, dst_port,
3160 free_map_register_records (records);
3162 vnet_buffer (b)->sw_if_index[VLIB_TX] = 0;
3163 next_index = (ip_addr_version (&lcm->active_map_resolver) == IP4) ?
3164 ip4_lookup_node.index : ip6_lookup_node.index;
3166 f = vlib_get_frame_to_node (lcm->vlib_main, next_index);
3168 /* Enqueue the packet */
3169 to_next = vlib_frame_vector_args (f);
3172 vlib_put_frame_to_node (lcm->vlib_main, next_index, f);
3177 find_ip_header (vlib_buffer_t * b, u8 ** ip_hdr)
3179 const i32 start = vnet_buffer (b)->ip.start_of_ip_header;
3180 if (start < 0 && start < -sizeof (b->pre_data))
3186 *ip_hdr = b->data + start;
3187 if ((u8 *) * ip_hdr > (u8 *) vlib_buffer_get_current (b))
3192 process_map_request (vlib_main_t * vm, vlib_node_runtime_t * node,
3193 lisp_cp_main_t * lcm, vlib_buffer_t * b)
3196 ip_address_t *dst_loc = 0, probed_loc, src_loc;
3198 map_request_hdr_t *mreq_hdr;
3199 gid_address_t src, dst;
3201 u32 i, len = 0, rloc_probe_recv = 0;
3202 gid_address_t *itr_rlocs = 0;
3204 mreq_hdr = vlib_buffer_get_current (b);
3205 if (!MREQ_SMR (mreq_hdr) && !MREQ_RLOC_PROBE (mreq_hdr))
3208 ("Only SMR Map-Requests and RLOC probe supported for now!");
3212 vlib_buffer_pull (b, sizeof (*mreq_hdr));
3213 nonce = MREQ_NONCE (mreq_hdr);
3216 len = lisp_msg_parse_addr (b, &src);
3220 len = lisp_msg_parse_itr_rlocs (b, &itr_rlocs,
3221 MREQ_ITR_RLOC_COUNT (mreq_hdr) + 1);
3225 /* parse eid records and send SMR-invoked map-requests */
3226 for (i = 0; i < MREQ_REC_COUNT (mreq_hdr); i++)
3228 memset (&dst, 0, sizeof (dst));
3229 len = lisp_msg_parse_eid_rec (b, &dst);
3232 clib_warning ("Can't parse map-request EID-record");
3236 if (MREQ_SMR (mreq_hdr))
3238 /* send SMR-invoked map-requests */
3239 queue_map_request (&dst, &src, 1 /* invoked */ , 0 /* resend */ );
3241 else if (MREQ_RLOC_PROBE (mreq_hdr))
3243 find_ip_header (b, &ip_hdr);
3246 clib_warning ("Cannot find the IP header!");
3250 memset (&m, 0, sizeof (m));
3251 u32 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst);
3253 // TODO: select best locator; for now use the first one
3254 dst_loc = &gid_address_ip (&itr_rlocs[0]);
3256 /* get src/dst IP addresses */
3257 get_src_and_dst_ip (ip_hdr, &src_loc, &probed_loc);
3259 // TODO get source port from buffer
3260 u16 src_port = LISP_CONTROL_PORT;
3262 send_map_reply (lcm, mi, dst_loc, 1 /* probe-bit */ , nonce,
3263 src_port, &probed_loc);
3268 vlib_node_increment_counter (vm, node->node_index,
3269 LISP_CP_INPUT_ERROR_RLOC_PROBE_REQ_RECEIVED,
3271 vec_free (itr_rlocs);
3274 static map_records_arg_t *
3275 parse_map_reply (vlib_buffer_t * b)
3282 map_reply_hdr_t *mrep_hdr;
3283 map_records_arg_t *a = clib_mem_alloc (sizeof (*a));
3284 memset (a, 0, sizeof (*a));
3285 locator_t *locators;
3287 mrep_hdr = vlib_buffer_get_current (b);
3288 a->nonce = MREP_NONCE (mrep_hdr);
3289 a->is_rloc_probe = MREP_RLOC_PROBE (mrep_hdr);
3290 vlib_buffer_pull (b, sizeof (*mrep_hdr));
3292 for (i = 0; i < MREP_REC_COUNT (mrep_hdr); i++)
3294 memset (&m, 0, sizeof (m));
3296 h = vlib_buffer_get_current (b);
3298 m.ttl = clib_net_to_host_u32 (MAP_REC_TTL (h));
3299 m.action = MAP_REC_ACTION (h);
3300 m.authoritative = MAP_REC_AUTH (h);
3302 len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed);
3305 clib_warning ("Failed to parse mapping record!");
3306 map_records_arg_free (a);
3310 m.locators = locators;
3311 gid_address_copy (&m.eid, &deid);
3312 vec_add1 (a->mappings, m);
3318 queue_map_reply_for_processing (map_records_arg_t * a)
3320 vl_api_rpc_call_main_thread (process_map_reply, (u8 *) a, sizeof (*a));
3324 queue_map_notify_for_processing (map_records_arg_t * a)
3326 vl_api_rpc_call_main_thread (process_map_notify, (u8 *) a, sizeof (a[0]));
3330 lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
3331 vlib_frame_t * from_frame)
3333 u32 n_left_from, *from, *to_next_drop, rloc_probe_rep_recv = 0,
3334 map_notifies_recv = 0;
3335 lisp_msg_type_e type;
3336 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3337 map_records_arg_t *a;
3339 from = vlib_frame_vector_args (from_frame);
3340 n_left_from = from_frame->n_vectors;
3343 while (n_left_from > 0)
3345 u32 n_left_to_next_drop;
3347 vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
3348 to_next_drop, n_left_to_next_drop);
3349 while (n_left_from > 0 && n_left_to_next_drop > 0)
3357 to_next_drop[0] = bi0;
3359 n_left_to_next_drop -= 1;
3361 b0 = vlib_get_buffer (vm, bi0);
3363 type = lisp_msg_type (vlib_buffer_get_current (b0));
3366 case LISP_MAP_REPLY:
3367 a = parse_map_reply (b0);
3370 if (a->is_rloc_probe)
3371 rloc_probe_rep_recv++;
3372 queue_map_reply_for_processing (a);
3375 case LISP_MAP_REQUEST:
3376 process_map_request (vm, node, lcm, b0);
3378 case LISP_MAP_NOTIFY:
3379 a = parse_map_notify (b0);
3382 map_notifies_recv++;
3383 queue_map_notify_for_processing (a);
3387 clib_warning ("Unsupported LISP message type %d", type);
3391 b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP];
3393 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
3399 vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
3400 n_left_to_next_drop);
3402 vlib_node_increment_counter (vm, node->node_index,
3403 LISP_CP_INPUT_ERROR_RLOC_PROBE_REP_RECEIVED,
3404 rloc_probe_rep_recv);
3405 vlib_node_increment_counter (vm, node->node_index,
3406 LISP_CP_INPUT_ERROR_MAP_NOTIFIES_RECEIVED,
3408 return from_frame->n_vectors;
3412 VLIB_REGISTER_NODE (lisp_cp_input_node) = {
3413 .function = lisp_cp_input,
3414 .name = "lisp-cp-input",
3415 .vector_size = sizeof (u32),
3416 .format_trace = format_lisp_cp_input_trace,
3417 .type = VLIB_NODE_TYPE_INTERNAL,
3419 .n_errors = LISP_CP_INPUT_N_ERROR,
3420 .error_strings = lisp_cp_input_error_strings,
3422 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
3425 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
3431 lisp_cp_init (vlib_main_t * vm)
3433 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3434 clib_error_t *error = 0;
3436 if ((error = vlib_call_init_function (vm, lisp_gpe_init)))
3439 lcm->im4 = &ip4_main;
3440 lcm->im6 = &ip6_main;
3441 lcm->vlib_main = vm;
3442 lcm->vnet_main = vnet_get_main ();
3443 lcm->mreq_itr_rlocs = ~0;
3445 memset (&lcm->active_map_resolver, 0, sizeof (lcm->active_map_resolver));
3447 gid_dictionary_init (&lcm->mapping_index_by_gid);
3448 lcm->do_map_resolver_election = 1;
3449 lcm->map_request_mode = MR_MODE_DST_ONLY;
3451 /* default vrf mapped to vni 0 */
3452 hash_set (lcm->table_id_by_vni, 0, 0);
3453 hash_set (lcm->vni_by_table_id, 0, 0);
3455 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp,
3456 lisp_cp_input_node.index, 1 /* is_ip4 */ );
3457 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6,
3458 lisp_cp_input_node.index, 0 /* is_ip4 */ );
3460 u64 now = clib_cpu_time_now ();
3461 timing_wheel_init (&lcm->wheel, now, vm->clib_time.clocks_per_second);
3466 send_map_request_thread_fn (void *arg)
3468 map_request_args_t *a = arg;
3469 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3472 resend_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked);
3474 send_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked);
3480 queue_map_request (gid_address_t * seid, gid_address_t * deid,
3481 u8 smr_invoked, u8 is_resend)
3483 map_request_args_t a;
3485 a.is_resend = is_resend;
3486 gid_address_copy (&a.seid, seid);
3487 gid_address_copy (&a.deid, deid);
3488 a.smr_invoked = smr_invoked;
3490 vl_api_rpc_call_main_thread (send_map_request_thread_fn,
3491 (u8 *) & a, sizeof (a));
3496 * Take an action with a pending map request depending on expiration time
3497 * and re-try counters.
3500 update_pending_request (pending_map_request_t * r, f64 dt)
3502 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3505 if (r->time_to_expire - dt < 0)
3506 /* it's time to decide what to do with this pending request */
3508 if (r->retries_num >= NUMBER_OF_RETRIES)
3509 /* too many retries -> assume current map resolver is not available */
3511 mr = get_map_resolver (&lcm->active_map_resolver);
3514 clib_warning ("Map resolver %U not found - probably deleted "
3515 "by the user recently.", format_ip_address,
3516 &lcm->active_map_resolver);
3520 clib_warning ("map resolver %U is unreachable, ignoring",
3521 format_ip_address, &lcm->active_map_resolver);
3523 /* mark current map resolver unavailable so it won't be
3524 * selected next time */
3526 mr->last_update = vlib_time_now (lcm->vlib_main);
3529 reset_pending_mr_counters (r);
3530 elect_map_resolver (lcm);
3532 /* try to find a next eligible map resolver and re-send */
3533 queue_map_request (&r->src, &r->dst, r->is_smr_invoked,
3539 queue_map_request (&r->src, &r->dst, r->is_smr_invoked,
3542 r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME;
3546 r->time_to_expire -= dt;
3550 remove_dead_pending_map_requests (lisp_cp_main_t * lcm)
3553 pending_map_request_t *pmr;
3554 u32 *to_be_removed = 0, *pmr_index;
3557 pool_foreach (pmr, lcm->pending_map_requests_pool,
3559 if (pmr->to_be_removed)
3561 clib_fifo_foreach (nonce, pmr->nonces, ({
3562 hash_unset (lcm->pending_map_requests_by_nonce, nonce[0]);
3565 vec_add1 (to_be_removed, pmr - lcm->pending_map_requests_pool);
3570 vec_foreach (pmr_index, to_be_removed)
3571 pool_put_index (lcm->pending_map_requests_by_nonce, pmr_index[0]);
3573 vec_free (to_be_removed);
3577 update_rloc_probing (lisp_cp_main_t * lcm, f64 dt)
3579 static f64 time_left = RLOC_PROBING_INTERVAL;
3581 if (!lcm->is_enabled || !lcm->rloc_probing)
3587 time_left = RLOC_PROBING_INTERVAL;
3588 send_rloc_probes (lcm);
3593 update_map_register (lisp_cp_main_t * lcm, f64 dt)
3595 static f64 time_left = QUICK_MAP_REGISTER_INTERVAL;
3596 static u64 mreg_sent_counter = 0;
3598 if (!lcm->is_enabled || !lcm->map_registering)
3604 if (mreg_sent_counter >= QUICK_MAP_REGISTER_MSG_COUNT)
3605 time_left = MAP_REGISTER_INTERVAL;
3608 mreg_sent_counter++;
3609 time_left = QUICK_MAP_REGISTER_INTERVAL;
3611 send_map_register (lcm, 1 /* want map notify */ );
3616 send_map_resolver_service (vlib_main_t * vm,
3617 vlib_node_runtime_t * rt, vlib_frame_t * f)
3621 pending_map_request_t *pmr;
3622 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3626 vlib_process_wait_for_event_or_clock (vm, period);
3628 /* currently no signals are expected - just wait for clock */
3629 (void) vlib_process_get_events (vm, 0);
3632 pool_foreach (pmr, lcm->pending_map_requests_pool,
3634 if (!pmr->to_be_removed)
3635 update_pending_request (pmr, period);
3639 remove_dead_pending_map_requests (lcm);
3641 update_map_register (lcm, period);
3642 update_rloc_probing (lcm, period);
3644 u64 now = clib_cpu_time_now ();
3646 expired = timing_wheel_advance (&lcm->wheel, now, expired, 0);
3647 if (vec_len (expired) > 0)
3650 vec_foreach (mi, expired)
3652 remove_expired_mapping (lcm, mi[0]);
3654 _vec_len (expired) = 0;
3663 VLIB_REGISTER_NODE (lisp_retry_service_node,static) = {
3664 .function = send_map_resolver_service,
3665 .type = VLIB_NODE_TYPE_PROCESS,
3666 .name = "lisp-retry-service",
3667 .process_log2_n_stack_bytes = 16,
3671 VLIB_INIT_FUNCTION (lisp_cp_init);
3674 * fd.io coding-style-patch-verification: ON
3677 * eval: (c-set-style "gnu")