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.h>
31 queue_map_request (gid_address_t * seid, gid_address_t * deid,
32 u8 smr_invoked, u8 is_resend);
34 ip_interface_address_t *
35 ip_interface_get_first_interface_address (ip_lookup_main_t * lm,
36 u32 sw_if_index, u8 loop)
38 vnet_main_t *vnm = vnet_get_main ();
39 vnet_sw_interface_t *swif = vnet_get_sw_interface (vnm, sw_if_index);
40 if (loop && swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
41 sw_if_index = swif->unnumbered_sw_if_index;
43 (vec_len ((lm)->if_address_pool_index_by_sw_if_index) > (sw_if_index)) ?
44 vec_elt ((lm)->if_address_pool_index_by_sw_if_index, (sw_if_index)) :
46 return pool_elt_at_index ((lm)->if_address_pool, ia);
50 ip_interface_get_first_address (ip_lookup_main_t * lm, u32 sw_if_index,
53 ip_interface_address_t *ia;
55 ia = ip_interface_get_first_interface_address (lm, sw_if_index, 1);
58 return ip_interface_address_get_address (lm, ia);
62 ip_interface_get_first_ip_address (lisp_cp_main_t * lcm, u32 sw_if_index,
63 u8 version, ip_address_t * result)
68 lm = (version == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
69 addr = ip_interface_get_first_address (lm, sw_if_index, version);
73 ip_address_set (result, addr, version);
78 ip_fib_lookup_with_table (lisp_cp_main_t * lcm, u32 fib_index,
81 if (ip_addr_version (dst) == IP4)
82 return ip4_fib_lookup_with_table (lcm->im4, fib_index, &ip_addr_v4 (dst),
85 return ip6_fib_lookup_with_table (lcm->im6, fib_index, &ip_addr_v6 (dst));
89 ip_fib_get_egress_iface_for_dst_with_lm (lisp_cp_main_t * lcm,
91 ip_lookup_main_t * lm)
96 adj_index = ip_fib_lookup_with_table (lcm, 0, dst);
97 adj = ip_get_adjacency (lm, adj_index);
102 /* we only want outgoing routes */
103 if (adj->lookup_next_index != IP_LOOKUP_NEXT_ARP
104 && adj->lookup_next_index != IP_LOOKUP_NEXT_REWRITE)
107 return adj->rewrite_header.sw_if_index;
111 * Find the sw_if_index of the interface that would be used to egress towards
115 ip_fib_get_egress_iface_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst)
117 ip_lookup_main_t *lm;
119 lm = ip_addr_version (dst) == IP4 ?
120 &lcm->im4->lookup_main : &lcm->im6->lookup_main;
122 return ip_fib_get_egress_iface_for_dst_with_lm (lcm, dst, lm);
126 * Find first IP of the interface that would be used to egress towards dst.
127 * Returns 1 if the address is found 0 otherwise.
130 ip_fib_get_first_egress_ip_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst,
131 ip_address_t * result)
134 ip_lookup_main_t *lm;
138 ASSERT (result != 0);
140 ipver = ip_addr_version (dst);
142 lm = (ipver == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
143 si = ip_fib_get_egress_iface_for_dst_with_lm (lcm, dst, lm);
148 /* find the first ip address */
149 addr = ip_interface_get_first_address (lm, si, ipver);
153 ip_address_set (result, addr, ipver);
158 dp_add_del_iface (lisp_cp_main_t * lcm, u32 vni, u8 is_l2, u8 is_add)
160 uword *dp_table, *intf;
161 vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai;
165 dp_table = hash_get (lcm->table_id_by_vni, vni);
169 clib_warning ("vni %d not associated to a vrf!", vni);
170 return VNET_API_ERROR_INVALID_VALUE;
175 dp_table = hash_get (lcm->bd_id_by_vni, vni);
178 clib_warning ("vni %d not associated to a bridge domain!", vni);
179 return VNET_API_ERROR_INVALID_VALUE;
183 intf = hash_get (is_l2 ? lcm->l2_dp_intf_by_vni : lcm->dp_intf_by_vni, vni);
185 /* enable/disable data-plane interface */
188 /* create interface */
194 ai->dp_table = dp_table[0];
196 vnet_lisp_gpe_add_del_iface (ai, 0);
198 /* keep track of vnis for which interfaces have been created */
199 hash_set (lcm->dp_intf_by_vni, vni, 1);
206 clib_warning ("interface for vni %d doesn't exist!", vni);
207 return VNET_API_ERROR_INVALID_VALUE;
212 ai->dp_table = dp_table[0];
213 vnet_lisp_gpe_add_del_iface (ai, 0);
214 hash_unset (lcm->dp_intf_by_vni, vni);
221 dp_del_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index)
223 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a;
226 memset (a, 0, sizeof (*a));
228 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
232 fe = pool_elt_at_index (lcm->fwd_entry_pool, feip[0]);
234 /* delete dp fwd entry */
237 a->locator_pairs = fe->locator_pairs;
238 a->vni = gid_address_vni (&fe->deid);
239 gid_address_copy (&a->rmt_eid, &fe->deid);
241 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
243 /* delete entry in fwd table */
244 hash_unset (lcm->fwd_entry_by_mapping_index, dst_map_index);
245 vec_free (fe->locator_pairs);
246 pool_put (lcm->fwd_entry_pool, fe);
250 * Finds first remote locator with best (lowest) priority that has a local
251 * peer locator with an underlying route to it.
255 get_locator_pairs (lisp_cp_main_t * lcm, mapping_t * lcl_map,
256 mapping_t * rmt_map, locator_pair_t ** locator_pairs)
258 u32 i, limitp = 0, li, found = 0, esi;
259 locator_set_t *rmt_ls, *lcl_ls;
260 ip_address_t _lcl_addr, *lcl_addr = &_lcl_addr;
261 locator_t *lp, *rmt = 0;
266 pool_elt_at_index (lcm->locator_set_pool, rmt_map->locator_set_index);
268 pool_elt_at_index (lcm->locator_set_pool, lcl_map->locator_set_index);
270 if (!rmt_ls || vec_len (rmt_ls->locator_indices) == 0)
277 /* find unvisited remote locator with best priority */
278 for (i = 0; i < vec_len (rmt_ls->locator_indices); i++)
280 if (0 != hash_get (checked, i))
283 li = vec_elt (rmt_ls->locator_indices, i);
284 lp = pool_elt_at_index (lcm->locator_pool, li);
286 /* we don't support non-IP locators for now */
287 if (gid_address_type (&lp->address) != GID_ADDR_IP_PREFIX)
290 if ((found && lp->priority == limitp)
291 || (!found && lp->priority >= limitp))
295 /* don't search for locators with lower priority and don't
296 * check this locator again*/
297 limitp = lp->priority;
298 hash_set (checked, i, 1);
302 /* check if a local locator with a route to remote locator exists */
305 /* find egress sw_if_index for rmt locator */
307 ip_fib_get_egress_iface_for_dst (lcm,
308 &gid_address_ip (&rmt->address));
309 if ((u32) ~ 0 == esi)
312 for (i = 0; i < vec_len (lcl_ls->locator_indices); i++)
314 li = vec_elt (lcl_ls->locator_indices, i);
315 locator_t *sl = pool_elt_at_index (lcm->locator_pool, li);
317 /* found local locator with the needed sw_if_index */
318 if (sl->sw_if_index == esi)
320 /* and it has an address */
321 if (0 == ip_interface_get_first_ip_address (lcm,
323 gid_address_ip_version
328 memset (&pair, 0, sizeof (pair));
329 ip_address_copy (&pair.rmt_loc,
330 &gid_address_ip (&rmt->address));
331 ip_address_copy (&pair.lcl_loc, lcl_addr);
332 pair.weight = rmt->weight;
333 vec_add1 (locator_pairs[0], pair);
347 dp_add_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index)
349 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a;
350 mapping_t *src_map, *dst_map;
352 uword *feip = 0, *dpid;
356 memset (a, 0, sizeof (*a));
358 /* remove entry if it already exists */
359 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
361 dp_del_fwd_entry (lcm, src_map_index, dst_map_index);
363 src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index);
364 dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index);
366 /* insert data plane forwarding entry */
369 gid_address_copy (&a->rmt_eid, &dst_map->eid);
370 a->vni = gid_address_vni (&a->rmt_eid);
372 /* get vrf or bd_index associated to vni */
373 type = gid_address_type (&dst_map->eid);
374 if (GID_ADDR_IP_PREFIX == type)
376 dpid = hash_get (lcm->table_id_by_vni, a->vni);
379 clib_warning ("vni %d not associated to a vrf!", a->vni);
382 a->table_id = dpid[0];
384 else if (GID_ADDR_MAC == type)
386 dpid = hash_get (lcm->bd_id_by_vni, a->vni);
389 clib_warning ("vni %d not associated to a bridge domain !", a->vni);
395 /* find best locator pair that 1) verifies LISP policy 2) are connected */
396 if (0 == get_locator_pairs (lcm, src_map, dst_map, &a->locator_pairs))
400 a->action = dst_map->action;
404 u8 ipver = ip_prefix_version (&gid_address_ippref (&a->rmt_eid));
405 a->decap_next_index = (ipver == IP4) ?
406 LISP_GPE_INPUT_NEXT_IP4_INPUT : LISP_GPE_INPUT_NEXT_IP6_INPUT;
408 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
410 /* add tunnel to fwd entry table XXX check return value from DP insertion */
411 pool_get (lcm->fwd_entry_pool, fe);
412 fe->locator_pairs = a->locator_pairs;
413 gid_address_copy (&fe->deid, &a->rmt_eid);
414 hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
415 fe - lcm->fwd_entry_pool);
419 * Add/remove mapping to/from map-cache. Overwriting not allowed.
422 vnet_lisp_map_cache_add_del (vnet_lisp_add_del_mapping_args_t * a,
423 u32 * map_index_result)
425 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
426 u32 mi, *map_indexp, map_index, i;
427 mapping_t *m, *old_map;
430 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->eid);
431 old_map = mi != ~0 ? pool_elt_at_index (lcm->mapping_pool, mi) : 0;
434 /* TODO check if overwriting and take appropriate actions */
435 if (mi != GID_LOOKUP_MISS && !gid_address_cmp (&old_map->eid, &a->eid))
437 clib_warning ("eid %U found in the eid-table", format_gid_address,
439 return VNET_API_ERROR_VALUE_EXIST;
442 pool_get (lcm->mapping_pool, m);
443 gid_address_copy (&m->eid, &a->eid);
444 m->locator_set_index = a->locator_set_index;
446 m->action = a->action;
448 m->is_static = a->is_static;
450 map_index = m - lcm->mapping_pool;
451 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, map_index,
454 if (pool_is_free_index (lcm->locator_set_pool, a->locator_set_index))
456 clib_warning ("Locator set with index %d doesn't exist",
457 a->locator_set_index);
458 return VNET_API_ERROR_INVALID_VALUE;
461 /* add eid to list of eids supported by locator-set */
462 vec_validate (lcm->locator_set_to_eids, a->locator_set_index);
463 eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids,
464 a->locator_set_index);
465 vec_add1 (eid_indexes[0], map_index);
470 vec_add1 (lcm->local_mappings_indexes, map_index);
472 map_index_result[0] = map_index;
476 if (mi == GID_LOOKUP_MISS)
478 clib_warning ("eid %U not found in the eid-table",
479 format_gid_address, &a->eid);
480 return VNET_API_ERROR_INVALID_VALUE;
483 /* clear locator-set to eids binding */
484 eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids,
485 a->locator_set_index);
486 for (i = 0; i < vec_len (eid_indexes[0]); i++)
488 map_indexp = vec_elt_at_index (eid_indexes[0], i);
489 if (map_indexp[0] == mi)
492 vec_del1 (eid_indexes[0], i);
494 /* remove local mark if needed */
495 m = pool_elt_at_index (lcm->mapping_pool, mi);
499 for (k = 0; k < vec_len (lcm->local_mappings_indexes); k++)
501 lm_indexp = vec_elt_at_index (lcm->local_mappings_indexes, k);
502 if (lm_indexp[0] == mi)
505 vec_del1 (lcm->local_mappings_indexes, k);
508 /* remove mapping from dictionary */
509 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, 0, 0);
510 gid_address_free (&m->eid);
511 pool_put_index (lcm->mapping_pool, mi);
518 * Add/update/delete mapping to/in/from map-cache.
521 vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a,
522 u32 * map_index_result)
528 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
530 if (vnet_lisp_enable_disable_status () == 0)
532 clib_warning ("LISP is disabled!");
533 return VNET_API_ERROR_LISP_DISABLED;
536 vni = gid_address_vni (&a->eid);
537 type = gid_address_type (&a->eid);
538 if (GID_ADDR_IP_PREFIX == type)
539 dp_table = hash_get (lcm->table_id_by_vni, vni);
540 else if (GID_ADDR_MAC == type)
541 dp_table = hash_get (lcm->bd_id_by_vni, vni);
545 clib_warning ("vni %d not associated to a %s!", vni,
546 GID_ADDR_IP_PREFIX == type ? "vrf" : "bd");
547 return VNET_API_ERROR_INVALID_VALUE;
550 /* store/remove mapping from map-cache */
551 return vnet_lisp_map_cache_add_del (a, map_index_result);
554 static clib_error_t *
555 lisp_add_del_local_eid_command_fn (vlib_main_t * vm, unformat_input_t * input,
556 vlib_cli_command_t * cmd)
558 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
559 unformat_input_t _line_input, *line_input = &_line_input;
562 gid_address_t *eids = 0;
563 clib_error_t *error = 0;
564 u8 *locator_set_name = 0;
565 u32 locator_set_index = 0, map_index = 0;
567 vnet_lisp_add_del_mapping_args_t _a, *a = &_a;
571 memset (&eid, 0, sizeof (eid));
572 memset (a, 0, sizeof (*a));
574 /* Get a line of input. */
575 if (!unformat_user (input, unformat_line_input, line_input))
578 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
580 if (unformat (line_input, "add"))
582 else if (unformat (line_input, "del"))
584 else if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
586 else if (unformat (line_input, "vni %d", &vni))
587 gid_address_vni (&eid) = vni;
588 else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name))
590 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
593 error = clib_error_return (0, "locator-set %s doesn't exist",
597 locator_set_index = p[0];
601 error = unformat_parse_error (line_input);
605 /* XXX treat batch configuration */
607 if (GID_ADDR_SRC_DST == gid_address_type (&eid))
610 clib_error_return (0, "src/dst is not supported for local EIDs!");
614 gid_address_copy (&a->eid, &eid);
616 a->locator_set_index = locator_set_index;
619 rv = vnet_lisp_add_del_local_mapping (a, &map_index);
622 error = clib_error_return (0, "failed to %s local mapping!",
623 is_add ? "add" : "delete");
627 if (locator_set_name)
628 vec_free (locator_set_name);
629 gid_address_free (&a->eid);
634 VLIB_CLI_COMMAND (lisp_add_del_local_eid_command) = {
635 .path = "lisp eid-table",
636 .short_help = "lisp eid-table add/del [vni <vni>] eid <eid> "
637 "locator-set <locator-set>",
638 .function = lisp_add_del_local_eid_command_fn,
643 vnet_lisp_eid_table_map (u32 vni, u32 dp_id, u8 is_l2, u8 is_add)
645 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
646 uword *dp_idp, *vnip, **dp_table_by_vni, **vni_by_dp_table;
648 if (vnet_lisp_enable_disable_status () == 0)
650 clib_warning ("LISP is disabled!");
654 dp_table_by_vni = is_l2 ? &lcm->bd_id_by_vni : &lcm->table_id_by_vni;
655 vni_by_dp_table = is_l2 ? &lcm->vni_by_bd_id : &lcm->vni_by_table_id;
657 if (!is_l2 && (vni == 0 || dp_id == 0))
659 clib_warning ("can't add/del default vni-vrf mapping!");
663 dp_idp = hash_get (dp_table_by_vni[0], vni);
664 vnip = hash_get (vni_by_dp_table[0], dp_id);
670 clib_warning ("vni %d or vrf %d already used in vrf/vni "
671 "mapping!", vni, dp_id);
674 hash_set (dp_table_by_vni[0], vni, dp_id);
675 hash_set (vni_by_dp_table[0], dp_id, vni);
677 /* create dp iface */
678 dp_add_del_iface (lcm, vni, is_l2, 1);
682 if (!dp_idp || !vnip)
684 clib_warning ("vni %d or vrf %d not used in any vrf/vni! "
685 "mapping!", vni, dp_id);
688 hash_unset (dp_table_by_vni[0], vni);
689 hash_unset (vni_by_dp_table[0], dp_id);
691 /* remove dp iface */
692 dp_add_del_iface (lcm, vni, is_l2, 0);
698 static clib_error_t *
699 lisp_eid_table_map_command_fn (vlib_main_t * vm,
700 unformat_input_t * input,
701 vlib_cli_command_t * cmd)
703 u8 is_add = 1, is_l2 = 0;
704 u32 vni = 0, dp_id = 0;
705 unformat_input_t _line_input, *line_input = &_line_input;
707 /* Get a line of input. */
708 if (!unformat_user (input, unformat_line_input, line_input))
711 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
713 if (unformat (line_input, "del"))
715 else if (unformat (line_input, "vni %d", &vni))
717 else if (unformat (line_input, "vrf %d", &dp_id))
719 else if (unformat (line_input, "bd %d", &dp_id))
723 return unformat_parse_error (line_input);
726 vnet_lisp_eid_table_map (vni, dp_id, is_l2, is_add);
731 VLIB_CLI_COMMAND (lisp_eid_table_map_command) = {
732 .path = "lisp eid-table map",
733 .short_help = "lisp eid-table map [del] vni <vni> vrf <vrf> | bd <bdi>",
734 .function = lisp_eid_table_map_command_fn,
738 /* return 0 if the two locator sets are identical 1 otherwise */
740 compare_locators (lisp_cp_main_t * lcm, u32 * old_ls_indexes,
741 locator_t * new_locators)
744 locator_t *old_loc, *new_loc;
746 if (vec_len (old_ls_indexes) != vec_len (new_locators))
749 for (i = 0; i < vec_len (new_locators); i++)
751 old_li = vec_elt (old_ls_indexes, i);
752 old_loc = pool_elt_at_index (lcm->locator_pool, old_li);
754 new_loc = vec_elt_at_index (new_locators, i);
756 if (locator_cmp (old_loc, new_loc))
763 * Adds/removes/updates mapping. Does not program forwarding.
765 * @param eid end-host identifier
766 * @param rlocs vector of remote locators
767 * @param action action for negative map-reply
768 * @param is_add add mapping if non-zero, delete otherwise
769 * @param res_map_index the map-index that was created/updated/removed. It is
770 * set to ~0 if no action is taken.
771 * @param is_static used for distinguishing between statically learned
772 remote mappings and mappings obtained from MR
773 * @return return code
776 vnet_lisp_add_del_mapping (gid_address_t * eid, locator_t * rlocs, u8 action,
777 u8 authoritative, u32 ttl, u8 is_add, u8 is_static,
780 vnet_lisp_add_del_mapping_args_t _m_args, *m_args = &_m_args;
781 vnet_lisp_add_del_locator_set_args_t _ls_args, *ls_args = &_ls_args;
782 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
783 u32 mi, ls_index = 0, dst_map_index;
786 if (vnet_lisp_enable_disable_status () == 0)
788 clib_warning ("LISP is disabled!");
789 return VNET_API_ERROR_LISP_DISABLED;
793 res_map_index[0] = ~0;
795 memset (m_args, 0, sizeof (m_args[0]));
796 memset (ls_args, 0, sizeof (ls_args[0]));
798 ls_args->locators = rlocs;
800 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, eid);
801 old_map = ((u32) ~ 0 != mi) ? pool_elt_at_index (lcm->mapping_pool, mi) : 0;
805 /* overwrite: if mapping already exists, decide if locators should be
806 * updated and be done */
807 if (old_map && gid_address_cmp (&old_map->eid, eid) == 0)
809 if (!is_static && (old_map->is_static || old_map->local))
811 /* do not overwrite local or static remote mappings */
812 clib_warning ("mapping %U rejected due to collision with local "
813 "or static remote mapping!", format_gid_address,
818 locator_set_t *old_ls;
820 /* update mapping attributes */
821 old_map->action = action;
822 old_map->authoritative = authoritative;
825 old_ls = pool_elt_at_index (lcm->locator_set_pool,
826 old_map->locator_set_index);
827 if (compare_locators (lcm, old_ls->locator_indices,
830 /* set locator-set index to overwrite */
832 ls_args->index = old_map->locator_set_index;
833 vnet_lisp_add_del_locator_set (ls_args, 0);
835 res_map_index[0] = mi;
844 vnet_lisp_add_del_locator_set (ls_args, &ls_index);
847 gid_address_copy (&m_args->eid, eid);
849 m_args->action = action;
850 m_args->locator_set_index = ls_index;
851 m_args->is_static = is_static;
852 vnet_lisp_map_cache_add_del (m_args, &dst_map_index);
855 res_map_index[0] = dst_map_index;
860 if (old_map == 0 || gid_address_cmp (&old_map->eid, eid) != 0)
862 clib_warning ("cannot delete mapping for eid %U",
863 format_gid_address, eid);
868 gid_address_copy (&m_args->eid, eid);
869 m_args->locator_set_index = old_map->locator_set_index;
871 /* delete mapping associated from map-cache */
872 vnet_lisp_map_cache_add_del (m_args, 0);
875 ls_args->index = old_map->locator_set_index;
876 /* delete locator set */
877 vnet_lisp_add_del_locator_set (ls_args, 0);
879 /* return old mapping index */
881 res_map_index[0] = mi;
889 vnet_lisp_clear_all_remote_adjacencies (void)
892 u32 mi, *map_indices = 0, *map_indexp;
893 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
894 vnet_lisp_add_del_mapping_args_t _dm_args, *dm_args = &_dm_args;
895 vnet_lisp_add_del_locator_set_args_t _ls, *ls = &_ls;
898 pool_foreach_index (mi, lcm->mapping_pool,
900 vec_add1 (map_indices, mi);
904 vec_foreach (map_indexp, map_indices)
906 mapping_t *map = pool_elt_at_index (lcm->mapping_pool, map_indexp[0]);
909 dp_del_fwd_entry (lcm, 0, map_indexp[0]);
912 gid_address_copy (&dm_args->eid, &map->eid);
913 dm_args->locator_set_index = map->locator_set_index;
915 /* delete mapping associated to fwd entry */
916 vnet_lisp_map_cache_add_del (dm_args, 0);
920 ls->index = map->locator_set_index;
921 /* delete locator set */
922 rv = vnet_lisp_add_del_locator_set (ls, 0);
930 vec_free (map_indices);
935 * Adds adjacency or removes forwarding entry associated to remote mapping.
936 * Note that adjacencies are not stored, they only result in forwarding entries
940 lisp_add_del_adjacency (lisp_cp_main_t * lcm, gid_address_t * local_eid,
941 gid_address_t * remote_eid, u8 is_add)
943 u32 local_mi, remote_mi = ~0;
945 if (vnet_lisp_enable_disable_status () == 0)
947 clib_warning ("LISP is disabled!");
948 return VNET_API_ERROR_LISP_DISABLED;
951 remote_mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, remote_eid);
952 if (GID_LOOKUP_MISS == remote_mi)
954 clib_warning ("Remote eid %U not found. Cannot add adjacency!",
955 format_gid_address, remote_eid);
962 /* TODO 1) check if src/dst 2) once we have src/dst working, use it in
965 /* check if source eid has an associated mapping. If pitr mode is on,
966 * just use the pitr's mapping */
967 local_mi = lcm->lisp_pitr ? lcm->pitr_map_index :
968 gid_dictionary_lookup (&lcm->mapping_index_by_gid, local_eid);
971 if (GID_LOOKUP_MISS == local_mi)
973 clib_warning ("Local eid %U not found. Cannot add adjacency!",
974 format_gid_address, local_eid);
979 /* update forwarding */
980 dp_add_fwd_entry (lcm, local_mi, remote_mi);
983 dp_del_fwd_entry (lcm, 0, remote_mi);
989 vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a)
991 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
992 return lisp_add_del_adjacency (lcm, &a->seid, &a->deid, a->is_add);
996 * Handler for add/del remote mapping CLI.
998 * @param vm vlib context
999 * @param input input from user
1001 * @return pointer to clib error structure
1003 static clib_error_t *
1004 lisp_add_del_remote_mapping_command_fn (vlib_main_t * vm,
1005 unformat_input_t * input,
1006 vlib_cli_command_t * cmd)
1008 clib_error_t *error = 0;
1009 unformat_input_t _line_input, *line_input = &_line_input;
1010 u8 is_add = 1, del_all = 0;
1011 locator_t rloc, *rlocs = 0, *curr_rloc = 0;
1014 u32 vni, action = ~0, p, w;
1017 /* Get a line of input. */
1018 if (!unformat_user (input, unformat_line_input, line_input))
1021 memset (&eid, 0, sizeof (eid));
1022 memset (&rloc, 0, sizeof (rloc));
1024 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1026 if (unformat (line_input, "del-all"))
1028 else if (unformat (line_input, "del"))
1030 else if (unformat (line_input, "add"))
1032 else if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
1034 else if (unformat (line_input, "vni %u", &vni))
1036 gid_address_vni (&eid) = vni;
1038 else if (unformat (line_input, "p %d w %d", &p, &w))
1043 ("No RLOC configured for setting priority/weight!");
1046 curr_rloc->priority = p;
1047 curr_rloc->weight = w;
1049 else if (unformat (line_input, "rloc %U", unformat_ip_address,
1050 &gid_address_ip (&rloc.address)))
1052 /* since rloc is stored in ip prefix we need to set prefix length */
1053 ip_prefix_t *pref = &gid_address_ippref (&rloc.address);
1055 u8 version = gid_address_ip_version (&rloc.address);
1056 ip_prefix_len (pref) = ip_address_max_len (version);
1058 vec_add1 (rlocs, rloc);
1059 curr_rloc = &rlocs[vec_len (rlocs) - 1];
1061 else if (unformat (line_input, "action %U",
1062 unformat_negative_mapping_action, &action))
1066 clib_warning ("parse error");
1073 clib_warning ("missing eid!");
1079 if (is_add && (~0 == action) && 0 == vec_len (rlocs))
1081 clib_warning ("no action set for negative map-reply!");
1087 vnet_lisp_clear_all_remote_adjacencies ();
1091 /* TODO build src/dst with seid */
1093 /* if it's a delete, clean forwarding */
1096 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1097 rv = lisp_add_del_adjacency (lcm, 0, &eid, /* is_add */ 0);
1104 /* add as static remote mapping, i.e., not authoritative and infinite
1106 rv = vnet_lisp_add_del_mapping (&eid, rlocs, action, 0, ~0, is_add,
1107 1 /* is_static */ , 0);
1110 clib_warning ("failed to %s remote mapping!", is_add ? "add" : "delete");
1114 unformat_free (line_input);
1118 VLIB_CLI_COMMAND (lisp_add_del_remote_mapping_command) =
1120 .path = "lisp remote-mapping",.short_help =
1121 "lisp remote-mapping add|del [del-all] vni <vni> "
1122 "eid <est-eid> [action <no-action|natively-forward|"
1123 "send-map-request|drop>] rloc <dst-locator> p <prio> w <weight> "
1124 "[rloc <dst-locator> ... ]",.function =
1125 lisp_add_del_remote_mapping_command_fn,};
1128 * Handler for add/del adjacency CLI.
1130 static clib_error_t *
1131 lisp_add_del_adjacency_command_fn (vlib_main_t * vm, unformat_input_t * input,
1132 vlib_cli_command_t * cmd)
1134 clib_error_t *error = 0;
1135 unformat_input_t _line_input, *line_input = &_line_input;
1136 vnet_lisp_add_del_adjacency_args_t _a, *a = &_a;
1138 locator_t rloc, *rlocs = 0;
1139 ip_prefix_t *deid_ippref, *seid_ippref;
1140 gid_address_t seid, deid;
1141 u8 *dmac = gid_address_mac (&deid);
1142 u8 *smac = gid_address_mac (&seid);
1143 u8 deid_set = 0, seid_set = 0;
1145 u32 vni, action = ~0;
1148 /* Get a line of input. */
1149 if (!unformat_user (input, unformat_line_input, line_input))
1152 memset (&deid, 0, sizeof (deid));
1153 memset (&seid, 0, sizeof (seid));
1154 memset (&rloc, 0, sizeof (rloc));
1156 seid_ippref = &gid_address_ippref (&seid);
1157 deid_ippref = &gid_address_ippref (&deid);
1159 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1161 if (unformat (line_input, "del"))
1163 else if (unformat (line_input, "add"))
1165 else if (unformat (line_input, "deid %U",
1166 unformat_ip_prefix, deid_ippref))
1168 gid_address_type (&deid) = GID_ADDR_IP_PREFIX;
1171 else if (unformat (line_input, "deid %U", unformat_mac_address, dmac))
1173 gid_address_type (&deid) = GID_ADDR_MAC;
1176 else if (unformat (line_input, "vni %u", &vni))
1178 gid_address_vni (&seid) = vni;
1179 gid_address_vni (&deid) = vni;
1181 else if (unformat (line_input, "seid %U",
1182 unformat_ip_prefix, seid_ippref))
1184 gid_address_type (&seid) = GID_ADDR_IP_PREFIX;
1187 else if (unformat (line_input, "seid %U", unformat_mac_address, smac))
1189 gid_address_type (&seid) = GID_ADDR_MAC;
1194 clib_warning ("parse error");
1201 clib_warning ("missing deid!");
1205 if (GID_ADDR_IP_PREFIX == gid_address_type (&deid))
1207 /* if seid not set, make sure the ip version is the same as that
1208 * of the deid. This ensures the seid to be configured will be
1209 * either 0/0 or ::/0 */
1211 ip_prefix_version (seid_ippref) = ip_prefix_version (deid_ippref);
1214 (ip_prefix_version (deid_ippref)
1215 != ip_prefix_version (seid_ippref)))
1217 clib_warning ("source and destination EIDs are not"
1218 " in the same IP family!");
1223 if (is_add && (~0 == action) && 0 == vec_len (rlocs))
1225 clib_warning ("no action set for negative map-reply!");
1229 memset (a, 0, sizeof (a[0]));
1230 gid_address_copy (&a->seid, &deid);
1231 gid_address_copy (&a->deid, &seid);
1234 rv = vnet_lisp_add_del_adjacency (a);
1237 clib_warning ("failed to %s adjacency!", is_add ? "add" : "delete");
1240 unformat_free (line_input);
1247 VLIB_CLI_COMMAND (lisp_add_del_adjacency_command) = {
1248 .path = "lisp adjacency",
1249 .short_help = "lisp adjacency add|del vni <vni>"
1250 "deid <dest-eid> seid <src-eid> [action <no-action|natively-forward|"
1251 "send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
1252 .function = lisp_add_del_adjacency_command_fn,
1256 static clib_error_t *
1257 lisp_show_map_resolvers_command_fn (vlib_main_t * vm,
1258 unformat_input_t * input,
1259 vlib_cli_command_t * cmd)
1262 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1264 vec_foreach (mr, lcm->map_resolvers)
1266 vlib_cli_output (vm, "%U", format_ip_address, &mr->address);
1272 VLIB_CLI_COMMAND (lisp_show_map_resolvers_command) = {
1273 .path = "show lisp map-resolvers",
1274 .short_help = "show lisp map-resolvers",
1275 .function = lisp_show_map_resolvers_command_fn,
1280 vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add)
1282 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1283 u32 locator_set_index = ~0;
1287 if (vnet_lisp_enable_disable_status () == 0)
1289 clib_warning ("LISP is disabled!");
1290 return VNET_API_ERROR_LISP_DISABLED;
1293 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
1296 clib_warning ("locator-set %v doesn't exist", locator_set_name);
1299 locator_set_index = p[0];
1303 pool_get (lcm->mapping_pool, m);
1304 m->locator_set_index = locator_set_index;
1306 lcm->pitr_map_index = m - lcm->mapping_pool;
1308 /* enable pitr mode */
1313 /* remove pitr mapping */
1314 pool_put_index (lcm->mapping_pool, lcm->pitr_map_index);
1316 /* disable pitr mode */
1322 static clib_error_t *
1323 lisp_pitr_set_locator_set_command_fn (vlib_main_t * vm,
1324 unformat_input_t * input,
1325 vlib_cli_command_t * cmd)
1327 u8 locator_name_set = 0;
1328 u8 *locator_set_name = 0;
1330 unformat_input_t _line_input, *line_input = &_line_input;
1331 clib_error_t *error = 0;
1334 /* Get a line of input. */
1335 if (!unformat_user (input, unformat_line_input, line_input))
1338 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1340 if (unformat (line_input, "ls %_%v%_", &locator_set_name))
1341 locator_name_set = 1;
1342 else if (unformat (line_input, "disable"))
1345 return clib_error_return (0, "parse error");
1348 if (!locator_name_set)
1350 clib_warning ("No locator set specified!");
1353 rv = vnet_lisp_pitr_set_locator_set (locator_set_name, is_add);
1356 error = clib_error_return (0, "failed to %s pitr!",
1357 is_add ? "add" : "delete");
1361 if (locator_set_name)
1362 vec_free (locator_set_name);
1367 VLIB_CLI_COMMAND (lisp_pitr_set_locator_set_command) = {
1368 .path = "lisp pitr",
1369 .short_help = "lisp pitr [disable] ls <locator-set-name>",
1370 .function = lisp_pitr_set_locator_set_command_fn,
1374 static clib_error_t *
1375 lisp_show_pitr_command_fn (vlib_main_t * vm,
1376 unformat_input_t * input, vlib_cli_command_t * cmd)
1378 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1383 vlib_cli_output (vm, "%=20s%=16s",
1384 "pitr", lcm->lisp_pitr ? "locator-set" : "");
1386 if (!lcm->lisp_pitr)
1388 vlib_cli_output (vm, "%=20s", "disable");
1392 if (~0 == lcm->pitr_map_index)
1394 tmp_str = format (0, "N/A");
1398 m = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
1399 if (~0 != m->locator_set_index)
1402 pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index);
1403 tmp_str = format (0, "%s", ls->name);
1407 tmp_str = format (0, "N/A");
1410 vec_add1 (tmp_str, 0);
1412 vlib_cli_output (vm, "%=20s%=16s", "enable", tmp_str);
1420 VLIB_CLI_COMMAND (lisp_show_pitr_command) = {
1421 .path = "show lisp pitr",
1422 .short_help = "Show pitr",
1423 .function = lisp_show_pitr_command_fn,
1428 format_eid_entry (u8 * s, va_list * args)
1430 vnet_main_t *vnm = va_arg (*args, vnet_main_t *);
1431 lisp_cp_main_t *lcm = va_arg (*args, lisp_cp_main_t *);
1432 mapping_t *mapit = va_arg (*args, mapping_t *);
1433 locator_set_t *ls = va_arg (*args, locator_set_t *);
1434 gid_address_t *gid = &mapit->eid;
1435 u32 ttl = mapit->ttl;
1436 u8 aut = mapit->authoritative;
1441 u8 *type = ls->local ? format (0, "local(%s)", ls->name)
1442 : format (0, "remote");
1444 if (vec_len (ls->locator_indices) == 0)
1446 s = format (s, "%-35U%-30s%-20u%-u", format_gid_address, gid,
1451 vec_foreach (loc_index, ls->locator_indices)
1453 locator_t *l = pool_elt_at_index (lcm->locator_pool, loc_index[0]);
1455 loc = format (0, "%U", format_vnet_sw_if_index_name, vnm,
1458 loc = format (0, "%U", format_ip_address,
1459 &gid_address_ip (&l->address));
1463 s = format (s, "%-35U%-20s%-30v%-20u%-u\n", format_gid_address,
1464 gid, type, loc, ttl, aut);
1468 s = format (s, "%55s%v\n", "", loc);
1474 static clib_error_t *
1475 lisp_show_eid_table_command_fn (vlib_main_t * vm,
1476 unformat_input_t * input,
1477 vlib_cli_command_t * cmd)
1479 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1481 unformat_input_t _line_input, *line_input = &_line_input;
1487 memset (&eid, 0, sizeof (eid));
1489 /* Get a line of input. */
1490 if (!unformat_user (input, unformat_line_input, line_input))
1493 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1495 if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
1497 else if (unformat (line_input, "local"))
1499 else if (unformat (line_input, "remote"))
1502 return clib_error_return (0, "parse error: '%U'",
1503 format_unformat_error, line_input);
1506 vlib_cli_output (vm, "%-35s%-20s%-30s%-20s%-s",
1507 "EID", "type", "locators", "ttl", "autoritative");
1512 pool_foreach (mapit, lcm->mapping_pool,
1514 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1515 mapit->locator_set_index);
1516 if (filter && !((1 == filter && ls->local) ||
1517 (2 == filter && !ls->local)))
1521 vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
1528 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &eid);
1529 if ((u32) ~ 0 == mi)
1532 mapit = pool_elt_at_index (lcm->mapping_pool, mi);
1533 locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool,
1534 mapit->locator_set_index);
1536 if (filter && !((1 == filter && ls->local) ||
1537 (2 == filter && !ls->local)))
1542 vlib_cli_output (vm, "%U,", format_eid_entry, lcm->vnet_main,
1550 VLIB_CLI_COMMAND (lisp_cp_show_eid_table_command) = {
1551 .path = "show lisp eid-table",
1552 .short_help = "Shows EID table",
1553 .function = lisp_show_eid_table_command_fn,
1557 /* cleans locator to locator-set data and removes locators not part of
1558 * any locator-set */
1560 clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi)
1562 u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes, *to_be_deleted = 0;
1563 locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool, lsi);
1564 for (i = 0; i < vec_len (ls->locator_indices); i++)
1566 loc_indexp = vec_elt_at_index (ls->locator_indices, i);
1567 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets,
1569 for (j = 0; j < vec_len (ls_indexes[0]); j++)
1571 ls_indexp = vec_elt_at_index (ls_indexes[0], j);
1572 if (ls_indexp[0] == lsi)
1576 /* delete index for removed locator-set */
1577 vec_del1 (ls_indexes[0], j);
1579 /* delete locator if it's part of no locator-set */
1580 if (vec_len (ls_indexes[0]) == 0)
1582 pool_put_index (lcm->locator_pool, loc_indexp[0]);
1583 vec_add1 (to_be_deleted, i);
1589 for (i = 0; i < vec_len (to_be_deleted); i++)
1591 loc_indexp = vec_elt_at_index (to_be_deleted, i);
1592 vec_del1 (ls->locator_indices, loc_indexp[0]);
1594 vec_free (to_be_deleted);
1598 static inline uword *
1599 get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p)
1601 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1606 /* find locator-set */
1609 p = hash_get_mem (lcm->locator_set_index_by_name, a->name);
1620 is_locator_in_locator_set (lisp_cp_main_t * lcm, locator_set_t * ls,
1626 ASSERT (ls != NULL);
1627 ASSERT (loc != NULL);
1629 vec_foreach (locit, ls->locator_indices)
1631 itloc = pool_elt_at_index (lcm->locator_pool, locit[0]);
1632 if ((ls->local && itloc->sw_if_index == loc->sw_if_index) ||
1633 (!ls->local && !gid_address_cmp (&itloc->address, &loc->address)))
1635 clib_warning ("Duplicate locator");
1636 return VNET_API_ERROR_VALUE_EXIST;
1644 remove_locator_from_locator_set (locator_set_t * ls, u32 * locit,
1645 u32 ls_index, u32 loc_id)
1647 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1648 u32 **ls_indexes = NULL;
1650 ASSERT (ls != NULL);
1651 ASSERT (locit != NULL);
1653 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets, locit[0]);
1654 pool_put_index (lcm->locator_pool, locit[0]);
1655 vec_del1 (ls->locator_indices, loc_id);
1656 vec_del1 (ls_indexes[0], ls_index);
1660 vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a,
1661 locator_set_t * ls, u32 * ls_result)
1663 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1664 locator_t *loc = NULL, *itloc = NULL;
1665 uword _p = (u32) ~ 0, *p = &_p;
1666 u32 loc_index = ~0, ls_index = ~0, *locit = NULL, **ls_indexes = NULL;
1672 if (vnet_lisp_enable_disable_status () == 0)
1674 clib_warning ("LISP is disabled!");
1675 return VNET_API_ERROR_LISP_DISABLED;
1678 p = get_locator_set_index (a, p);
1681 clib_warning ("locator-set %v doesn't exist", a->name);
1682 return VNET_API_ERROR_INVALID_ARGUMENT;
1687 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1690 clib_warning ("locator-set %d to be overwritten doesn't exist!",
1692 return VNET_API_ERROR_INVALID_ARGUMENT;
1699 ls_result[0] = p[0];
1701 /* allocate locators */
1702 vec_foreach (itloc, a->locators)
1704 ret = is_locator_in_locator_set (lcm, ls, itloc);
1710 pool_get (lcm->locator_pool, loc);
1712 loc_index = loc - lcm->locator_pool;
1714 vec_add1 (ls->locator_indices, loc_index);
1716 vec_validate (lcm->locator_to_locator_sets, loc_index);
1717 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets,
1719 vec_add1 (ls_indexes[0], p[0]);
1726 itloc = a->locators;
1728 vec_foreach (locit, ls->locator_indices)
1730 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
1732 if (loc->local && loc->sw_if_index == itloc->sw_if_index)
1734 remove_locator_from_locator_set (ls, locit, ls_index, loc_id);
1736 if (0 == loc->local &&
1737 !gid_address_cmp (&loc->address, &itloc->address))
1739 remove_locator_from_locator_set (ls, locit, ls_index, loc_id);
1750 vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
1753 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1755 uword _p = (u32) ~ 0, *p = &_p;
1760 if (vnet_lisp_enable_disable_status () == 0)
1762 clib_warning ("LISP is disabled!");
1763 return VNET_API_ERROR_LISP_DISABLED;
1768 p = get_locator_set_index (a, p);
1771 if (p && p[0] != (u32) ~ 0)
1773 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1776 clib_warning ("locator-set %d to be overwritten doesn't exist!",
1781 /* clean locator to locator-set vectors and remove locators if
1782 * they're not part of another locator-set */
1783 clean_locator_to_locator_set (lcm, p[0]);
1785 /* remove locator indices from locator set */
1786 vec_free (ls->locator_indices);
1791 ls_result[0] = p[0];
1793 /* new locator-set */
1796 pool_get (lcm->locator_set_pool, ls);
1797 memset (ls, 0, sizeof (*ls));
1798 ls_index = ls - lcm->locator_set_pool;
1802 ls->name = vec_dup (a->name);
1804 if (!lcm->locator_set_index_by_name)
1805 lcm->locator_set_index_by_name = hash_create_vec (
1813 hash_set_mem (lcm->locator_set_index_by_name, ls->name,
1816 /* mark as local locator-set */
1817 vec_add1 (lcm->local_locator_set_indexes, ls_index);
1819 ls->local = a->local;
1821 ls_result[0] = ls_index;
1824 ret = vnet_lisp_add_del_locator (a, ls, NULL);
1832 p = get_locator_set_index (a, p);
1835 clib_warning ("locator-set %v doesn't exists", a->name);
1839 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1842 clib_warning ("locator-set with index %d doesn't exists", p[0]);
1846 if (lcm->mreq_itr_rlocs == p[0])
1848 clib_warning ("Can't delete the locator-set used to constrain "
1849 "the itr-rlocs in map-requests!");
1853 if (vec_len (lcm->locator_set_to_eids) != 0)
1855 eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids, p[0]);
1856 if (vec_len (eid_indexes[0]) != 0)
1859 ("Can't delete a locator that supports a mapping!");
1864 /* clean locator to locator-sets data */
1865 clean_locator_to_locator_set (lcm, p[0]);
1871 vec_foreach_index (it, lcm->local_locator_set_indexes)
1873 lsi = vec_elt (lcm->local_locator_set_indexes, it);
1876 vec_del1 (lcm->local_locator_set_indexes, it);
1880 hash_unset_mem (lcm->locator_set_index_by_name, ls->name);
1882 vec_free (ls->name);
1883 vec_free (ls->locator_indices);
1884 pool_put (lcm->locator_set_pool, ls);
1890 vnet_lisp_enable_disable (u8 is_enable)
1893 clib_error_t *error = 0;
1894 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1895 vnet_lisp_gpe_enable_disable_args_t _a, *a = &_a;
1897 a->is_en = is_enable;
1898 error = vnet_lisp_gpe_enable_disable (a);
1901 return clib_error_return (0, "failed to %s data-plane!",
1902 a->is_en ? "enable" : "disable");
1907 /* enable all l2 and l3 ifaces */
1910 hash_foreach(vni, dp_table, lcm->table_id_by_vni, ({
1911 dp_add_del_iface(lcm, vni, 0, 1);
1913 hash_foreach(vni, dp_table, lcm->bd_id_by_vni, ({
1914 dp_add_del_iface(lcm, vni, /* is_l2 */ 1, 1);
1920 /* clear interface table */
1921 hash_free (lcm->dp_intf_by_vni);
1922 hash_free (lcm->fwd_entry_by_mapping_index);
1923 pool_free (lcm->fwd_entry_pool);
1926 /* update global flag */
1927 lcm->is_enabled = is_enable;
1932 static clib_error_t *
1933 lisp_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input,
1934 vlib_cli_command_t * cmd)
1936 unformat_input_t _line_input, *line_input = &_line_input;
1940 /* Get a line of input. */
1941 if (!unformat_user (input, unformat_line_input, line_input))
1944 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1946 if (unformat (line_input, "enable"))
1951 else if (unformat (line_input, "disable"))
1955 return clib_error_return (0, "parse error: '%U'",
1956 format_unformat_error, line_input);
1961 return clib_error_return (0, "state not set");
1963 return vnet_lisp_enable_disable (is_enabled);
1967 VLIB_CLI_COMMAND (lisp_cp_enable_disable_command) = {
1969 .short_help = "lisp [enable|disable]",
1970 .function = lisp_enable_disable_command_fn,
1975 vnet_lisp_enable_disable_status (void)
1977 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1978 return lcm->is_enabled;
1982 format_lisp_status (u8 * s, va_list * args)
1984 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1985 return format (s, "%s", lcm->is_enabled ? "enabled" : "disabled");
1988 static clib_error_t *
1989 lisp_show_status_command_fn (vlib_main_t * vm, unformat_input_t * input,
1990 vlib_cli_command_t * cmd)
1993 msg = format (msg, "feature: %U\ngpe: %U\n",
1994 format_lisp_status, format_vnet_lisp_gpe_status);
1995 vlib_cli_output (vm, "%v", msg);
2001 VLIB_CLI_COMMAND (lisp_show_status_command) = {
2002 .path = "show lisp status",
2003 .short_help = "show lisp status",
2004 .function = lisp_show_status_command_fn,
2008 static clib_error_t *
2009 lisp_show_eid_table_map_command_fn (vlib_main_t * vm,
2010 unformat_input_t * input,
2011 vlib_cli_command_t * cmd)
2014 unformat_input_t _line_input, *line_input = &_line_input;
2015 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2016 uword *vni_table = 0;
2019 /* Get a line of input. */
2020 if (!unformat_user (input, unformat_line_input, line_input))
2023 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2025 if (unformat (line_input, "l2"))
2027 vni_table = lcm->bd_id_by_vni;
2030 else if (unformat (line_input, "l3"))
2032 vni_table = lcm->table_id_by_vni;
2036 return clib_error_return (0, "parse error: '%U'",
2037 format_unformat_error, line_input);
2042 vlib_cli_output (vm, "Error: expected l2|l3 param!\n");
2046 vlib_cli_output (vm, "%=10s%=10s", "VNI", is_l2 ? "BD" : "VRF");
2049 hash_foreach_pair (p, vni_table,
2051 vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
2059 VLIB_CLI_COMMAND (lisp_show_eid_table_map_command) = {
2060 .path = "show lisp eid-table map",
2061 .short_help = "show lisp eid-table l2|l3",
2062 .function = lisp_show_eid_table_map_command_fn,
2066 static clib_error_t *
2067 lisp_add_del_locator_set_command_fn (vlib_main_t * vm,
2068 unformat_input_t * input,
2069 vlib_cli_command_t * cmd)
2071 lisp_gpe_main_t *lgm = &lisp_gpe_main;
2072 vnet_main_t *vnm = lgm->vnet_main;
2073 unformat_input_t _line_input, *line_input = &_line_input;
2075 clib_error_t *error = 0;
2076 u8 *locator_set_name = 0;
2077 locator_t locator, *locators = 0;
2078 vnet_lisp_add_del_locator_set_args_t _a, *a = &_a;
2082 memset (&locator, 0, sizeof (locator));
2083 memset (a, 0, sizeof (a[0]));
2085 /* Get a line of input. */
2086 if (!unformat_user (input, unformat_line_input, line_input))
2089 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2091 if (unformat (line_input, "add %_%v%_", &locator_set_name))
2093 else if (unformat (line_input, "del %_%v%_", &locator_set_name))
2095 else if (unformat (line_input, "iface %U p %d w %d",
2096 unformat_vnet_sw_interface, vnm,
2097 &locator.sw_if_index, &locator.priority,
2101 vec_add1 (locators, locator);
2105 error = unformat_parse_error (line_input);
2110 a->name = locator_set_name;
2111 a->locators = locators;
2115 rv = vnet_lisp_add_del_locator_set (a, &ls_index);
2118 error = clib_error_return (0, "failed to %s locator-set!",
2119 is_add ? "add" : "delete");
2123 vec_free (locators);
2124 if (locator_set_name)
2125 vec_free (locator_set_name);
2130 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_set_command) = {
2131 .path = "lisp locator-set",
2132 .short_help = "lisp locator-set add/del <name> [iface <iface-name> "
2133 "p <priority> w <weight>]",
2134 .function = lisp_add_del_locator_set_command_fn,
2138 static clib_error_t *
2139 lisp_add_del_locator_in_set_command_fn (vlib_main_t * vm,
2140 unformat_input_t * input,
2141 vlib_cli_command_t * cmd)
2143 lisp_gpe_main_t *lgm = &lisp_gpe_main;
2144 vnet_main_t *vnm = lgm->vnet_main;
2145 unformat_input_t _line_input, *line_input = &_line_input;
2147 clib_error_t *error = 0;
2148 u8 *locator_set_name = 0;
2149 u8 locator_set_name_set = 0;
2150 locator_t locator, *locators = 0;
2151 vnet_lisp_add_del_locator_set_args_t _a, *a = &_a;
2154 memset (&locator, 0, sizeof (locator));
2155 memset (a, 0, sizeof (a[0]));
2157 /* Get a line of input. */
2158 if (!unformat_user (input, unformat_line_input, line_input))
2161 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2163 if (unformat (line_input, "add"))
2165 else if (unformat (line_input, "del"))
2167 else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name))
2168 locator_set_name_set = 1;
2169 else if (unformat (line_input, "iface %U p %d w %d",
2170 unformat_vnet_sw_interface, vnm,
2171 &locator.sw_if_index, &locator.priority,
2175 vec_add1 (locators, locator);
2179 error = unformat_parse_error (line_input);
2184 if (!locator_set_name_set)
2186 error = clib_error_return (0, "locator_set name not set!");
2190 a->name = locator_set_name;
2191 a->locators = locators;
2195 vnet_lisp_add_del_locator (a, 0, &ls_index);
2198 vec_free (locators);
2199 vec_free (locator_set_name);
2204 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_in_set_command) = {
2205 .path = "lisp locator",
2206 .short_help = "lisp locator add/del locator-set <name> iface <iface-name> "
2207 "p <priority> w <weight>",
2208 .function = lisp_add_del_locator_in_set_command_fn,
2212 static clib_error_t *
2213 lisp_cp_show_locator_sets_command_fn (vlib_main_t * vm,
2214 unformat_input_t * input,
2215 vlib_cli_command_t * cmd)
2217 locator_set_t *lsit;
2220 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2222 vlib_cli_output (vm, "%s%=16s%=16s%=16s", "Locator-set", "Locator",
2223 "Priority", "Weight");
2226 pool_foreach (lsit, lcm->locator_set_pool,
2232 msg = format (msg, "%v", lsit->name);
2236 msg = format (msg, "<%s-%d>", "remote", lsit - lcm->locator_set_pool);
2238 vec_foreach (locit, lsit->locator_indices)
2242 msg = format (msg, "%16s", " ");
2244 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
2246 msg = format (msg, "%16d%16d%16d\n", loc->sw_if_index, loc->priority,
2249 msg = format (msg, "%16U%16d%16d\n", format_ip_address,
2250 &gid_address_ip(&loc->address), loc->priority,
2254 vlib_cli_output (vm, "%v", msg);
2262 VLIB_CLI_COMMAND (lisp_cp_show_locator_sets_command) = {
2263 .path = "show lisp locator-set",
2264 .short_help = "Shows locator-sets",
2265 .function = lisp_cp_show_locator_sets_command_fn,
2269 static map_resolver_t *
2270 get_map_resolver (ip_address_t * a)
2272 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2275 vec_foreach (mr, lcm->map_resolvers)
2277 if (!ip_address_cmp (&mr->address, a))
2286 vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
2288 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2290 map_resolver_t _mr, *mr = &_mr;
2292 if (vnet_lisp_enable_disable_status () == 0)
2294 clib_warning ("LISP is disabled!");
2295 return VNET_API_ERROR_LISP_DISABLED;
2301 if (get_map_resolver (&a->address))
2303 clib_warning ("map-resolver %U already exists!", format_ip_address,
2308 memset (mr, 0, sizeof (*mr));
2309 ip_address_copy (&mr->address, &a->address);
2310 vec_add1 (lcm->map_resolvers, *mr);
2312 if (vec_len (lcm->map_resolvers) == 1)
2313 lcm->do_map_resolver_election = 1;
2317 for (i = 0; i < vec_len (lcm->map_resolvers); i++)
2319 mr = vec_elt_at_index (lcm->map_resolvers, i);
2320 if (!ip_address_cmp (&mr->address, &a->address))
2322 if (!ip_address_cmp (&mr->address, &lcm->active_map_resolver))
2323 lcm->do_map_resolver_election = 1;
2325 vec_del1 (lcm->map_resolvers, i);
2333 static clib_error_t *
2334 lisp_add_del_map_resolver_command_fn (vlib_main_t * vm,
2335 unformat_input_t * input,
2336 vlib_cli_command_t * cmd)
2338 unformat_input_t _line_input, *line_input = &_line_input;
2339 u8 is_add = 1, addr_set = 0;
2340 ip_address_t ip_addr;
2341 clib_error_t *error = 0;
2343 vnet_lisp_add_del_map_resolver_args_t _a, *a = &_a;
2345 /* Get a line of input. */
2346 if (!unformat_user (input, unformat_line_input, line_input))
2349 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2351 if (unformat (line_input, "add"))
2353 else if (unformat (line_input, "del"))
2355 else if (unformat (line_input, "%U", unformat_ip_address, &ip_addr))
2359 error = unformat_parse_error (line_input);
2366 error = clib_error_return (0, "Map-resolver address must be set!");
2371 a->address = ip_addr;
2372 rv = vnet_lisp_add_del_map_resolver (a);
2375 error = clib_error_return (0, "failed to %s map-resolver!",
2376 is_add ? "add" : "delete");
2384 VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = {
2385 .path = "lisp map-resolver",
2386 .short_help = "lisp map-resolver add/del <ip_address>",
2387 .function = lisp_add_del_map_resolver_command_fn,
2392 vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a)
2394 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2397 if (vnet_lisp_enable_disable_status () == 0)
2399 clib_warning ("LISP is disabled!");
2400 return VNET_API_ERROR_LISP_DISABLED;
2405 p = hash_get_mem (lcm->locator_set_index_by_name, a->locator_set_name);
2408 clib_warning ("locator-set %v doesn't exist", a->locator_set_name);
2409 return VNET_API_ERROR_INVALID_ARGUMENT;
2412 lcm->mreq_itr_rlocs = p[0];
2416 lcm->mreq_itr_rlocs = ~0;
2422 static clib_error_t *
2423 lisp_add_del_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2424 unformat_input_t * input,
2425 vlib_cli_command_t * cmd)
2427 unformat_input_t _line_input, *line_input = &_line_input;
2429 u8 *locator_set_name = 0;
2430 clib_error_t *error = 0;
2432 vnet_lisp_add_del_mreq_itr_rloc_args_t _a, *a = &_a;
2434 /* Get a line of input. */
2435 if (!unformat_user (input, unformat_line_input, line_input))
2438 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2440 if (unformat (line_input, "del"))
2442 else if (unformat (line_input, "add %s", &locator_set_name))
2446 error = unformat_parse_error (line_input);
2452 a->locator_set_name = locator_set_name;
2453 rv = vnet_lisp_add_del_mreq_itr_rlocs (a);
2456 error = clib_error_return (0, "failed to %s map-request itr-rlocs!",
2457 is_add ? "add" : "delete");
2460 vec_free (locator_set_name);
2468 VLIB_CLI_COMMAND (lisp_add_del_map_request_command) = {
2469 .path = "lisp map-request itr-rlocs",
2470 .short_help = "lisp map-request itr-rlocs add/del <locator_set_name>",
2471 .function = lisp_add_del_mreq_itr_rlocs_command_fn,
2475 static clib_error_t *
2476 lisp_show_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2477 unformat_input_t * input,
2478 vlib_cli_command_t * cmd)
2480 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2481 locator_set_t *loc_set;
2483 vlib_cli_output (vm, "%=20s", "itr-rlocs");
2485 if (~0 == lcm->mreq_itr_rlocs)
2490 loc_set = pool_elt_at_index (lcm->locator_set_pool, lcm->mreq_itr_rlocs);
2492 vlib_cli_output (vm, "%=20s", loc_set->name);
2498 VLIB_CLI_COMMAND (lisp_show_map_request_command) = {
2499 .path = "show lisp map-request itr-rlocs",
2500 .short_help = "Shows map-request itr-rlocs",
2501 .function = lisp_show_mreq_itr_rlocs_command_fn,
2505 /* Statistics (not really errors) */
2506 #define foreach_lisp_cp_lookup_error \
2508 _(MAP_REQUESTS_SENT, "map-request sent")
2510 static char *lisp_cp_lookup_error_strings[] = {
2511 #define _(sym,string) string,
2512 foreach_lisp_cp_lookup_error
2518 #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
2519 foreach_lisp_cp_lookup_error
2521 LISP_CP_LOOKUP_N_ERROR,
2522 } lisp_cp_lookup_error_t;
2526 LISP_CP_LOOKUP_NEXT_DROP,
2527 LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
2528 LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
2529 LISP_CP_LOOKUP_N_NEXT,
2530 } lisp_cp_lookup_next_t;
2534 gid_address_t dst_eid;
2535 ip_address_t map_resolver_ip;
2536 } lisp_cp_lookup_trace_t;
2539 format_lisp_cp_lookup_trace (u8 * s, va_list * args)
2541 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2542 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2543 lisp_cp_lookup_trace_t *t = va_arg (*args, lisp_cp_lookup_trace_t *);
2545 s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
2546 format_ip_address, &t->map_resolver_ip, format_gid_address,
2552 get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip,
2553 ip_address_t * sloc)
2555 map_resolver_t *mrit;
2558 if (vec_len (lcm->map_resolvers) == 0)
2560 clib_warning ("No map-resolver configured");
2564 /* find the first mr ip we have a route to and the ip of the
2565 * iface that has a route to it */
2566 vec_foreach (mrit, lcm->map_resolvers)
2569 if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, a, sloc))
2571 ip_address_copy (mr_ip, a);
2573 /* also update globals */
2578 clib_warning ("Can't find map-resolver and local interface ip!");
2582 static gid_address_t *
2583 build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
2589 ip_interface_address_t *ia = 0;
2590 gid_address_t gid_data, *gid = &gid_data;
2591 gid_address_t *rlocs = 0;
2592 ip_prefix_t *ippref = &gid_address_ippref (gid);
2593 ip_address_t *rloc = &ip_prefix_addr (ippref);
2595 memset (gid, 0, sizeof (gid[0]));
2596 gid_address_type (gid) = GID_ADDR_IP_PREFIX;
2597 for (i = 0; i < vec_len (loc_set->locator_indices); i++)
2599 loc_indexp = vec_elt_at_index (loc_set->locator_indices, i);
2600 loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
2602 /* Add ipv4 locators first TODO sort them */
2605 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
2606 loc->sw_if_index, 1 /* unnumbered */,
2608 addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
2609 ip_address_set (rloc, addr, IP4);
2610 ip_prefix_len (ippref) = 32;
2611 ip_prefix_normalize (ippref);
2612 vec_add1 (rlocs, gid[0]);
2615 /* Add ipv6 locators */
2616 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
2617 loc->sw_if_index, 1 /* unnumbered */,
2619 addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
2620 ip_address_set (rloc, addr, IP6);
2621 ip_prefix_len (ippref) = 128;
2622 ip_prefix_normalize (ippref);
2623 vec_add1 (rlocs, gid[0]);
2631 static vlib_buffer_t *
2632 build_encapsulated_map_request (lisp_cp_main_t * lcm,
2633 gid_address_t * seid, gid_address_t * deid,
2634 locator_set_t * loc_set, ip_address_t * mr_ip,
2635 ip_address_t * sloc, u8 is_smr_invoked,
2636 u64 * nonce_res, u32 * bi_res)
2640 gid_address_t *rlocs = 0;
2641 vlib_main_t *vm = lcm->vlib_main;
2643 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
2645 clib_warning ("Can't allocate buffer for Map-Request!");
2649 b = vlib_get_buffer (vm, bi);
2651 /* leave some space for the encap headers */
2652 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
2655 rlocs = build_itr_rloc_list (lcm, loc_set);
2658 lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, nonce_res);
2660 /* push ecm: udp-ip-lisp */
2661 lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid);
2663 /* push outer ip header */
2664 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc,
2674 reset_pending_mr_counters (pending_map_request_t * r)
2676 r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME;
2681 elect_map_resolver (lisp_cp_main_t * lcm)
2685 vec_foreach (mr, lcm->map_resolvers)
2689 ip_address_copy (&lcm->active_map_resolver, &mr->address);
2690 lcm->do_map_resolver_election = 0;
2697 #define send_encapsulated_map_request(lcm, seid, deid, smr) \
2698 _send_encapsulated_map_request(lcm, seid, deid, smr, 0)
2700 #define resend_encapsulated_map_request(lcm, seid, deid, smr) \
2701 _send_encapsulated_map_request(lcm, seid, deid, smr, 1)
2704 _send_encapsulated_map_request (lisp_cp_main_t * lcm,
2705 gid_address_t * seid, gid_address_t * deid,
2706 u8 is_smr_invoked, u8 is_resend)
2709 u32 next_index, bi = 0, *to_next, map_index;
2713 locator_set_t *loc_set;
2715 pending_map_request_t *pmr, *duplicate_pmr = 0;
2719 ASSERT (*lcm->pending_map_request_lock);
2721 /* if there is already a pending request remember it */
2724 pool_foreach(pmr, lcm->pending_map_requests_pool,
2726 if (!gid_address_cmp (&pmr->src, seid)
2727 && !gid_address_cmp (&pmr->dst, deid))
2729 duplicate_pmr = pmr;
2735 if (!is_resend && duplicate_pmr)
2737 /* don't send the request if there is a pending map request already */
2741 /* get locator-set for seid */
2742 if (!lcm->lisp_pitr)
2744 map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
2745 if (map_index == ~0)
2747 clib_warning ("No local mapping found in eid-table for %U!",
2748 format_gid_address, seid);
2752 map = pool_elt_at_index (lcm->mapping_pool, map_index);
2757 ("Mapping found for src eid %U is not marked as local!",
2758 format_gid_address, seid);
2761 ls_index = map->locator_set_index;
2765 map_index = lcm->pitr_map_index;
2766 map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
2767 ls_index = map->locator_set_index;
2770 /* overwrite locator set if map-request itr-rlocs configured */
2771 if (~0 != lcm->mreq_itr_rlocs)
2773 ls_index = lcm->mreq_itr_rlocs;
2776 loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index);
2778 while (lcm->do_map_resolver_election
2779 | (0 == ip_fib_get_first_egress_ip_for_dst (lcm,
2780 &lcm->active_map_resolver,
2783 if (0 == elect_map_resolver (lcm))
2784 /* all Mrs are down */
2787 duplicate_pmr->to_be_removed = 1;
2789 /* restart MR checking by marking all of them up */
2790 vec_foreach (mr, lcm->map_resolvers) mr->is_down = 0;
2796 /* build the encapsulated map request */
2797 b = build_encapsulated_map_request (lcm, seid, deid, loc_set,
2798 &lcm->active_map_resolver,
2799 &sloc, is_smr_invoked, &nonce, &bi);
2804 /* set fib index to default and lookup node */
2805 vnet_buffer (b)->sw_if_index[VLIB_TX] = 0;
2806 next_index = (ip_addr_version (&lcm->active_map_resolver) == IP4) ?
2807 ip4_lookup_node.index : ip6_lookup_node.index;
2809 f = vlib_get_frame_to_node (lcm->vlib_main, next_index);
2811 /* Enqueue the packet */
2812 to_next = vlib_frame_vector_args (f);
2815 vlib_put_frame_to_node (lcm->vlib_main, next_index, f);
2818 /* if there is a pending request already update it */
2820 if (clib_fifo_elts (duplicate_pmr->nonces) >= PENDING_MREQ_QUEUE_LEN)
2822 /* remove the oldest nonce */
2823 u64 CLIB_UNUSED (tmp), *nonce_del;
2824 nonce_del = clib_fifo_head (duplicate_pmr->nonces);
2825 hash_unset (lcm->pending_map_requests_by_nonce, nonce_del[0]);
2826 clib_fifo_sub1 (duplicate_pmr->nonces, tmp);
2829 clib_fifo_add1 (duplicate_pmr->nonces, nonce);
2830 hash_set (lcm->pending_map_requests_by_nonce, nonce,
2831 duplicate_pmr - lcm->pending_map_requests_pool);
2835 /* add map-request to pending requests table */
2836 pool_get (lcm->pending_map_requests_pool, pmr);
2837 memset (pmr, 0, sizeof (*pmr));
2838 gid_address_copy (&pmr->src, seid);
2839 gid_address_copy (&pmr->dst, deid);
2840 clib_fifo_add1 (pmr->nonces, nonce);
2841 pmr->is_smr_invoked = is_smr_invoked;
2842 reset_pending_mr_counters (pmr);
2843 hash_set (lcm->pending_map_requests_by_nonce, nonce,
2844 pmr - lcm->pending_map_requests_pool);
2851 get_src_and_dst_ip (void *hdr, ip_address_t * src, ip_address_t * dst)
2853 ip4_header_t *ip4 = hdr;
2856 if ((ip4->ip_version_and_header_length & 0xF0) == 0x40)
2858 ip_address_set (src, &ip4->src_address, IP4);
2859 ip_address_set (dst, &ip4->dst_address, IP4);
2864 ip_address_set (src, &ip6->src_address, IP6);
2865 ip_address_set (dst, &ip6->dst_address, IP6);
2870 lisp_get_vni_from_buffer_ip (lisp_cp_main_t * lcm, vlib_buffer_t * b,
2874 u32 vni = ~0, table_id = ~0, fib_index;
2879 ip4_main_t *im4 = &ip4_main;
2880 fib_index = vec_elt (im4->fib_index_by_sw_if_index,
2881 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2882 fib = find_ip4_fib_by_table_index_or_id (im4, fib_index,
2883 IP4_ROUTE_FLAG_FIB_INDEX);
2884 table_id = fib->table_id;
2889 ip6_main_t *im6 = &ip6_main;
2890 fib_index = vec_elt (im6->fib_index_by_sw_if_index,
2891 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2892 fib = find_ip6_fib_by_table_index_or_id (im6, fib_index,
2893 IP6_ROUTE_FLAG_FIB_INDEX);
2894 table_id = fib->table_id;
2897 vnip = hash_get (lcm->vni_by_table_id, table_id);
2901 clib_warning ("vrf %d is not mapped to any vni!", table_id);
2907 lisp_get_vni_from_buffer_eth (lisp_cp_main_t * lcm, vlib_buffer_t * b)
2913 l2input_main_t *l2im = &l2input_main;
2914 l2_input_config_t *config;
2915 l2_bridge_domain_t *bd_config;
2917 sw_if_index0 = vnet_buffer (b)->sw_if_index[VLIB_RX];
2918 config = vec_elt_at_index (l2im->configs, sw_if_index0);
2919 bd_config = vec_elt_at_index (l2im->bd_configs, config->bd_index);
2921 vnip = hash_get (lcm->vni_by_bd_id, bd_config->bd_id);
2925 clib_warning ("bridge domain %d is not mapped to any vni!",
2932 get_src_and_dst_eids_from_buffer (lisp_cp_main_t * lcm, vlib_buffer_t * b,
2933 gid_address_t * src, gid_address_t * dst)
2938 memset (src, 0, sizeof (*src));
2939 memset (dst, 0, sizeof (*dst));
2940 type = vnet_buffer (b)->lisp.overlay_afi;
2942 if (LISP_AFI_IP == type || LISP_AFI_IP6 == type)
2945 u8 version, preflen;
2947 gid_address_type (src) = GID_ADDR_IP_PREFIX;
2948 gid_address_type (dst) = GID_ADDR_IP_PREFIX;
2950 ip = vlib_buffer_get_current (b);
2951 get_src_and_dst_ip (ip, &gid_address_ip (src), &gid_address_ip (dst));
2953 version = gid_address_ip_version (src);
2954 preflen = ip_address_max_len (version);
2955 gid_address_ippref_len (src) = preflen;
2956 gid_address_ippref_len (dst) = preflen;
2958 vni = lisp_get_vni_from_buffer_ip (lcm, b, version);
2959 gid_address_vni (dst) = vni;
2960 gid_address_vni (src) = vni;
2962 else if (LISP_AFI_MAC == type)
2964 ethernet_header_t *eh;
2966 eh = vlib_buffer_get_current (b);
2968 gid_address_type (src) = GID_ADDR_MAC;
2969 gid_address_type (dst) = GID_ADDR_MAC;
2970 mac_copy (&gid_address_mac (src), eh->src_address);
2971 mac_copy (&gid_address_mac (dst), eh->dst_address);
2974 vni = lisp_get_vni_from_buffer_eth (lcm, b);
2976 gid_address_vni (dst) = vni;
2977 gid_address_vni (src) = vni;
2982 lisp_cp_lookup (vlib_main_t * vm, vlib_node_runtime_t * node,
2983 vlib_frame_t * from_frame)
2985 u32 *from, *to_next_drop, di, si;
2986 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2987 u32 pkts_mapped = 0;
2988 uword n_left_from, n_left_to_next_drop;
2990 from = vlib_frame_vector_args (from_frame);
2991 n_left_from = from_frame->n_vectors;
2993 while (n_left_from > 0)
2995 vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
2996 to_next_drop, n_left_to_next_drop);
2998 while (n_left_from > 0 && n_left_to_next_drop > 0)
3002 gid_address_t src, dst;
3007 to_next_drop[0] = pi0;
3009 n_left_to_next_drop -= 1;
3011 b0 = vlib_get_buffer (vm, pi0);
3012 b0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
3014 /* src/dst eid pair */
3015 get_src_and_dst_eids_from_buffer (lcm, b0, &src, &dst);
3017 /* if we have remote mapping for destination already in map-chache
3018 add forwarding tunnel directly. If not send a map-request */
3019 di = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst);
3022 mapping_t *m = vec_elt_at_index (lcm->mapping_pool, di);
3023 /* send a map-request also in case of negative mapping entry
3024 with corresponding action */
3025 if (m->action == LISP_SEND_MAP_REQUEST)
3027 /* send map-request */
3028 queue_map_request (&src, &dst, 0 /* smr_invoked */ ,
3029 0 /* is_resend */ );
3034 si = gid_dictionary_lookup (&lcm->mapping_index_by_gid,
3038 dp_add_fwd_entry (lcm, si, di);
3044 /* send map-request */
3045 queue_map_request (&src, &dst, 0 /* smr_invoked */ ,
3046 0 /* is_resend */ );
3050 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
3052 lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, b0,
3055 memset (tr, 0, sizeof (*tr));
3056 gid_address_copy (&tr->dst_eid, &dst);
3057 ip_address_copy (&tr->map_resolver_ip,
3058 &lcm->active_map_resolver);
3060 gid_address_free (&dst);
3061 gid_address_free (&src);
3064 vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
3065 n_left_to_next_drop);
3067 vlib_node_increment_counter (vm, node->node_index,
3068 LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
3070 return from_frame->n_vectors;
3074 VLIB_REGISTER_NODE (lisp_cp_lookup_node) = {
3075 .function = lisp_cp_lookup,
3076 .name = "lisp-cp-lookup",
3077 .vector_size = sizeof (u32),
3078 .format_trace = format_lisp_cp_lookup_trace,
3079 .type = VLIB_NODE_TYPE_INTERNAL,
3081 .n_errors = LISP_CP_LOOKUP_N_ERROR,
3082 .error_strings = lisp_cp_lookup_error_strings,
3084 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
3087 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
3088 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
3089 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
3094 /* lisp_cp_input statistics */
3095 #define foreach_lisp_cp_input_error \
3097 _(MAP_REPLIES_RECEIVED, "map-replies received")
3099 static char *lisp_cp_input_error_strings[] = {
3100 #define _(sym,string) string,
3101 foreach_lisp_cp_input_error
3107 #define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
3108 foreach_lisp_cp_input_error
3110 LISP_CP_INPUT_N_ERROR,
3111 } lisp_cp_input_error_t;
3115 LISP_CP_INPUT_NEXT_DROP,
3116 LISP_CP_INPUT_N_NEXT,
3117 } lisp_cp_input_next_t;
3121 gid_address_t dst_eid;
3122 ip4_address_t map_resolver_ip;
3123 } lisp_cp_input_trace_t;
3126 format_lisp_cp_input_trace (u8 * s, va_list * args)
3128 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
3129 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
3130 CLIB_UNUSED (lisp_cp_input_trace_t * t) =
3131 va_arg (*args, lisp_cp_input_trace_t *);
3133 s = format (s, "LISP-CP-INPUT: TODO");
3138 process_map_reply (void *arg)
3140 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3141 vlib_buffer_t *b = arg;
3142 u32 len = 0, i, ttl, dst_map_index = 0;
3144 pending_map_request_t *pmr;
3146 map_reply_hdr_t *mrep_hdr;
3150 u8 authoritative, action;
3151 locator_t *locators = 0, *loc;
3153 mrep_hdr = vlib_buffer_get_current (b);
3155 lisp_pending_map_request_lock (lcm);
3157 /* Check pending requests table and nonce */
3158 nonce = MREP_NONCE (mrep_hdr);
3159 pmr_index = hash_get (lcm->pending_map_requests_by_nonce, nonce);
3162 clib_warning ("No pending map-request entry with nonce %lu!", nonce);
3165 pmr = pool_elt_at_index (lcm->pending_map_requests_pool, pmr_index[0]);
3167 vlib_buffer_pull (b, sizeof (*mrep_hdr));
3169 for (i = 0; i < MREP_REC_COUNT (mrep_hdr); i++)
3171 h = vlib_buffer_get_current (b);
3172 ttl = clib_net_to_host_u32 (MAP_REC_TTL (h));
3173 action = MAP_REC_ACTION (h);
3174 authoritative = MAP_REC_AUTH (h);
3176 len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed);
3179 clib_warning ("Failed to parse mapping record!");
3180 vec_foreach (loc, locators)
3184 vec_free (locators);
3188 /* insert/update mappings cache */
3189 vnet_lisp_add_del_mapping (&deid, locators, action, authoritative, ttl,
3190 1, 0 /* is_static */ , &dst_map_index);
3192 /* try to program forwarding only if mapping saved or updated */
3193 if ((u32) ~ 0 != dst_map_index)
3194 lisp_add_del_adjacency (lcm, &pmr->src, &deid, 1);
3196 vec_free (locators);
3199 /* remove pending map request entry */
3202 clib_fifo_foreach (noncep, pmr->nonces, ({
3203 hash_unset(lcm->pending_map_requests_by_nonce, noncep[0]);
3207 clib_fifo_free (pmr->nonces);
3208 pool_put (lcm->pending_map_requests_pool, pmr);
3211 lisp_pending_map_request_unlock (lcm);
3216 process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm,
3219 map_request_hdr_t *mreq_hdr;
3220 gid_address_t src, dst;
3223 gid_address_t *itr_rlocs = 0, *rloc;
3225 mreq_hdr = vlib_buffer_get_current (b);
3226 vlib_buffer_pull (b, sizeof (*mreq_hdr));
3228 // nonce = MREQ_NONCE(mreq_hdr);
3230 if (!MREQ_SMR (mreq_hdr))
3232 clib_warning ("Only SMR Map-Requests supported for now!");
3237 len = lisp_msg_parse_addr (b, &src);
3241 /* for now we don't do anything with the itr's rlocs */
3243 lisp_msg_parse_itr_rlocs (b, &itr_rlocs,
3244 MREQ_ITR_RLOC_COUNT (mreq_hdr) + 1);
3248 /* TODO: RLOCs are currently unused, so free them for now */
3249 vec_foreach (rloc, itr_rlocs)
3251 gid_address_free (rloc);
3254 /* parse eid records and send SMR-invoked map-requests */
3255 for (i = 0; i < MREQ_REC_COUNT (mreq_hdr); i++)
3257 memset (&dst, 0, sizeof (dst));
3258 len = lisp_msg_parse_eid_rec (b, &dst);
3261 clib_warning ("Can't parse map-request EID-record");
3264 /* send SMR-invoked map-requests */
3265 queue_map_request (&dst, &src, 1 /* invoked */ , 0 /* resend */ );
3270 queue_map_reply (vlib_buffer_t * b)
3272 vlib_buffer_t *a = clib_mem_alloc (sizeof (a[0]) + b->current_length);
3274 clib_memcpy (a->data, b->data + b->current_data, b->current_length);
3275 a->current_length = b->current_length;
3276 a->current_data = 0;
3278 vl_api_rpc_call_main_thread (process_map_reply, (u8 *) a, sizeof (a[0])
3279 + a->current_length);
3284 lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
3285 vlib_frame_t * from_frame)
3287 u32 n_left_from, *from, *to_next_drop;
3288 lisp_msg_type_e type;
3289 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3291 from = vlib_frame_vector_args (from_frame);
3292 n_left_from = from_frame->n_vectors;
3295 while (n_left_from > 0)
3297 u32 n_left_to_next_drop;
3299 vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
3300 to_next_drop, n_left_to_next_drop);
3301 while (n_left_from > 0 && n_left_to_next_drop > 0)
3309 to_next_drop[0] = bi0;
3311 n_left_to_next_drop -= 1;
3313 b0 = vlib_get_buffer (vm, bi0);
3315 type = lisp_msg_type (vlib_buffer_get_current (b0));
3318 case LISP_MAP_REPLY:
3319 queue_map_reply (b0);
3321 case LISP_MAP_REQUEST:
3322 process_map_request (vm, lcm, b0);
3325 clib_warning ("Unsupported LISP message type %d", type);
3329 b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP];
3331 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
3337 vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
3338 n_left_to_next_drop);
3340 return from_frame->n_vectors;
3344 VLIB_REGISTER_NODE (lisp_cp_input_node) = {
3345 .function = lisp_cp_input,
3346 .name = "lisp-cp-input",
3347 .vector_size = sizeof (u32),
3348 .format_trace = format_lisp_cp_input_trace,
3349 .type = VLIB_NODE_TYPE_INTERNAL,
3351 .n_errors = LISP_CP_INPUT_N_ERROR,
3352 .error_strings = lisp_cp_input_error_strings,
3354 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
3357 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
3363 lisp_cp_init (vlib_main_t * vm)
3365 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3366 clib_error_t *error = 0;
3368 if ((error = vlib_call_init_function (vm, lisp_gpe_init)))
3371 lcm->im4 = &ip4_main;
3372 lcm->im6 = &ip6_main;
3373 lcm->vlib_main = vm;
3374 lcm->vnet_main = vnet_get_main ();
3375 lcm->mreq_itr_rlocs = ~0;
3377 memset (&lcm->active_map_resolver, 0, sizeof (lcm->active_map_resolver));
3379 lcm->pending_map_request_lock =
3380 clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
3382 lcm->pending_map_request_lock[0] = 0;
3383 gid_dictionary_init (&lcm->mapping_index_by_gid);
3384 lcm->do_map_resolver_election = 1;
3386 /* default vrf mapped to vni 0 */
3387 hash_set (lcm->table_id_by_vni, 0, 0);
3388 hash_set (lcm->vni_by_table_id, 0, 0);
3390 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp,
3391 lisp_cp_input_node.index, 1 /* is_ip4 */ );
3392 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6,
3393 lisp_cp_input_node.index, 0 /* is_ip4 */ );
3399 send_map_request_thread_fn (void *arg)
3401 map_request_args_t *a = arg;
3402 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3404 lisp_pending_map_request_lock (lcm);
3407 resend_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked);
3409 send_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked);
3411 lisp_pending_map_request_unlock (lcm);
3417 queue_map_request (gid_address_t * seid, gid_address_t * deid,
3418 u8 smr_invoked, u8 is_resend)
3420 map_request_args_t a;
3422 a.is_resend = is_resend;
3423 gid_address_copy (&a.seid, seid);
3424 gid_address_copy (&a.deid, deid);
3425 a.smr_invoked = smr_invoked;
3427 vl_api_rpc_call_main_thread (send_map_request_thread_fn,
3428 (u8 *) & a, sizeof (a));
3433 * Take an action with a pending map request depending on expiration time
3434 * and re-try counters.
3437 update_pending_request (pending_map_request_t * r, f64 dt)
3439 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3442 if (r->time_to_expire - dt < 0)
3443 /* it's time to decide what to do with this pending request */
3445 if (r->retries_num >= NUMBER_OF_RETRIES)
3446 /* too many retries -> assume current map resolver is not available */
3448 mr = get_map_resolver (&lcm->active_map_resolver);
3451 clib_warning ("Map resolver %U not found - probably deleted "
3452 "by the user recently.", format_ip_address,
3453 &lcm->active_map_resolver);
3457 clib_warning ("map resolver %U is unreachable, ignoring",
3458 format_ip_address, &lcm->active_map_resolver);
3460 /* mark current map resolver unavailable so it won't be
3461 * selected next time */
3463 mr->last_update = vlib_time_now (lcm->vlib_main);
3466 reset_pending_mr_counters (r);
3467 elect_map_resolver (lcm);
3469 /* try to find a next eligible map resolver and re-send */
3470 queue_map_request (&r->src, &r->dst, r->is_smr_invoked,
3476 queue_map_request (&r->src, &r->dst, r->is_smr_invoked,
3479 r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME;
3483 r->time_to_expire -= dt;
3487 remove_dead_pending_map_requests (lisp_cp_main_t * lcm)
3490 pending_map_request_t *pmr;
3491 u32 *to_be_removed = 0, *pmr_index;
3493 ASSERT (*lcm->pending_map_request_lock);
3496 pool_foreach (pmr, lcm->pending_map_requests_pool,
3498 if (pmr->to_be_removed)
3500 clib_fifo_foreach (nonce, pmr->nonces, ({
3501 hash_unset (lcm->pending_map_requests_by_nonce, nonce[0]);
3504 vec_add1 (to_be_removed, pmr - lcm->pending_map_requests_pool);
3509 vec_foreach (pmr_index, to_be_removed)
3510 pool_put_index (lcm->pending_map_requests_by_nonce, pmr_index[0]);
3512 vec_free (to_be_removed);
3516 send_map_resolver_service (vlib_main_t * vm,
3517 vlib_node_runtime_t * rt, vlib_frame_t * f)
3520 pending_map_request_t *pmr;
3521 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3525 vlib_process_wait_for_event_or_clock (vm, period);
3527 /* currently no signals are expected - just wait for clock */
3528 (void) vlib_process_get_events (vm, 0);
3530 lisp_pending_map_request_lock (lcm);
3533 pool_foreach (pmr, lcm->pending_map_requests_pool,
3535 if (!pmr->to_be_removed)
3536 update_pending_request (pmr, period);
3540 remove_dead_pending_map_requests (lcm);
3542 lisp_pending_map_request_unlock (lcm);
3550 VLIB_REGISTER_NODE (lisp_retry_service_node,static) = {
3551 .function = send_map_resolver_service,
3552 .type = VLIB_NODE_TYPE_PROCESS,
3553 .name = "lisp-retry-service",
3554 .process_log2_n_stack_bytes = 16,
3558 VLIB_INIT_FUNCTION (lisp_cp_init);
3561 * fd.io coding-style-patch-verification: ON
3564 * eval: (c-set-style "gnu")