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 (&a->rmt_eid);
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 vec_add1 (rlocs, rloc);
1053 curr_rloc = &rlocs[vec_len (rlocs) - 1];
1055 else if (unformat (line_input, "action %U",
1056 unformat_negative_mapping_action, &action))
1060 clib_warning ("parse error");
1067 clib_warning ("missing eid!");
1073 if (is_add && (~0 == action) && 0 == vec_len (rlocs))
1075 clib_warning ("no action set for negative map-reply!");
1081 vnet_lisp_clear_all_remote_adjacencies ();
1085 /* TODO build src/dst with seid */
1087 /* if it's a delete, clean forwarding */
1090 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1091 rv = lisp_add_del_adjacency (lcm, 0, &eid, /* is_add */ 0);
1098 /* add as static remote mapping, i.e., not authoritative and infinite
1100 rv = vnet_lisp_add_del_mapping (&eid, rlocs, action, 0, ~0, is_add,
1101 1 /* is_static */ , 0);
1104 clib_warning ("failed to %s remote mapping!", is_add ? "add" : "delete");
1108 unformat_free (line_input);
1112 VLIB_CLI_COMMAND (lisp_add_del_remote_mapping_command) =
1114 .path = "lisp remote-mapping",.short_help =
1115 "lisp remote-mapping add|del [del-all] vni <vni> "
1116 "eid <est-eid> [action <no-action|natively-forward|"
1117 "send-map-request|drop>] rloc <dst-locator> p <prio> w <weight> "
1118 "[rloc <dst-locator> ... ]",.function =
1119 lisp_add_del_remote_mapping_command_fn,};
1122 * Handler for add/del adjacency CLI.
1124 static clib_error_t *
1125 lisp_add_del_adjacency_command_fn (vlib_main_t * vm, unformat_input_t * input,
1126 vlib_cli_command_t * cmd)
1128 clib_error_t *error = 0;
1129 unformat_input_t _line_input, *line_input = &_line_input;
1130 vnet_lisp_add_del_adjacency_args_t _a, *a = &_a;
1132 locator_t rloc, *rlocs = 0;
1133 ip_prefix_t *deid_ippref, *seid_ippref;
1134 gid_address_t seid, deid;
1135 u8 *dmac = gid_address_mac (&deid);
1136 u8 *smac = gid_address_mac (&seid);
1137 u8 deid_set = 0, seid_set = 0;
1139 u32 vni, action = ~0;
1142 /* Get a line of input. */
1143 if (!unformat_user (input, unformat_line_input, line_input))
1146 memset (&deid, 0, sizeof (deid));
1147 memset (&seid, 0, sizeof (seid));
1148 memset (&rloc, 0, sizeof (rloc));
1150 seid_ippref = &gid_address_ippref (&seid);
1151 deid_ippref = &gid_address_ippref (&deid);
1153 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1155 if (unformat (line_input, "del"))
1157 else if (unformat (line_input, "add"))
1159 else if (unformat (line_input, "deid %U",
1160 unformat_ip_prefix, deid_ippref))
1162 gid_address_type (&deid) = GID_ADDR_IP_PREFIX;
1165 else if (unformat (line_input, "deid %U", unformat_mac_address, dmac))
1167 gid_address_type (&deid) = GID_ADDR_MAC;
1170 else if (unformat (line_input, "vni %u", &vni))
1172 gid_address_vni (&seid) = vni;
1173 gid_address_vni (&deid) = vni;
1175 else if (unformat (line_input, "seid %U",
1176 unformat_ip_prefix, seid_ippref))
1178 gid_address_type (&seid) = GID_ADDR_IP_PREFIX;
1181 else if (unformat (line_input, "seid %U", unformat_mac_address, smac))
1183 gid_address_type (&seid) = GID_ADDR_MAC;
1188 clib_warning ("parse error");
1195 clib_warning ("missing deid!");
1199 if (GID_ADDR_IP_PREFIX == gid_address_type (&deid))
1201 /* if seid not set, make sure the ip version is the same as that
1202 * of the deid. This ensures the seid to be configured will be
1203 * either 0/0 or ::/0 */
1205 ip_prefix_version (seid_ippref) = ip_prefix_version (deid_ippref);
1208 (ip_prefix_version (deid_ippref)
1209 != ip_prefix_version (seid_ippref)))
1211 clib_warning ("source and destination EIDs are not"
1212 " in the same IP family!");
1217 if (is_add && (~0 == action) && 0 == vec_len (rlocs))
1219 clib_warning ("no action set for negative map-reply!");
1223 memset (a, 0, sizeof (a[0]));
1224 gid_address_copy (&a->seid, &deid);
1225 gid_address_copy (&a->deid, &seid);
1228 rv = vnet_lisp_add_del_adjacency (a);
1231 clib_warning ("failed to %s adjacency!", is_add ? "add" : "delete");
1234 unformat_free (line_input);
1241 VLIB_CLI_COMMAND (lisp_add_del_adjacency_command) = {
1242 .path = "lisp adjacency",
1243 .short_help = "lisp adjacency add|del vni <vni>"
1244 "deid <dest-eid> seid <src-eid> [action <no-action|natively-forward|"
1245 "send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
1246 .function = lisp_add_del_adjacency_command_fn,
1250 static clib_error_t *
1251 lisp_show_map_resolvers_command_fn (vlib_main_t * vm,
1252 unformat_input_t * input,
1253 vlib_cli_command_t * cmd)
1256 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1258 vec_foreach (mr, lcm->map_resolvers)
1260 vlib_cli_output (vm, "%U", format_ip_address, &mr->address);
1266 VLIB_CLI_COMMAND (lisp_show_map_resolvers_command) = {
1267 .path = "show lisp map-resolvers",
1268 .short_help = "show lisp map-resolvers",
1269 .function = lisp_show_map_resolvers_command_fn,
1274 vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add)
1276 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1277 u32 locator_set_index = ~0;
1281 if (vnet_lisp_enable_disable_status () == 0)
1283 clib_warning ("LISP is disabled!");
1284 return VNET_API_ERROR_LISP_DISABLED;
1287 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
1290 clib_warning ("locator-set %v doesn't exist", locator_set_name);
1293 locator_set_index = p[0];
1297 pool_get (lcm->mapping_pool, m);
1298 m->locator_set_index = locator_set_index;
1300 lcm->pitr_map_index = m - lcm->mapping_pool;
1302 /* enable pitr mode */
1307 /* remove pitr mapping */
1308 pool_put_index (lcm->mapping_pool, lcm->pitr_map_index);
1310 /* disable pitr mode */
1316 static clib_error_t *
1317 lisp_pitr_set_locator_set_command_fn (vlib_main_t * vm,
1318 unformat_input_t * input,
1319 vlib_cli_command_t * cmd)
1321 u8 locator_name_set = 0;
1322 u8 *locator_set_name = 0;
1324 unformat_input_t _line_input, *line_input = &_line_input;
1325 clib_error_t *error = 0;
1328 /* Get a line of input. */
1329 if (!unformat_user (input, unformat_line_input, line_input))
1332 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1334 if (unformat (line_input, "ls %_%v%_", &locator_set_name))
1335 locator_name_set = 1;
1336 else if (unformat (line_input, "disable"))
1339 return clib_error_return (0, "parse error");
1342 if (!locator_name_set)
1344 clib_warning ("No locator set specified!");
1347 rv = vnet_lisp_pitr_set_locator_set (locator_set_name, is_add);
1350 error = clib_error_return (0, "failed to %s pitr!",
1351 is_add ? "add" : "delete");
1355 if (locator_set_name)
1356 vec_free (locator_set_name);
1361 VLIB_CLI_COMMAND (lisp_pitr_set_locator_set_command) = {
1362 .path = "lisp pitr",
1363 .short_help = "lisp pitr [disable] ls <locator-set-name>",
1364 .function = lisp_pitr_set_locator_set_command_fn,
1368 static clib_error_t *
1369 lisp_show_pitr_command_fn (vlib_main_t * vm,
1370 unformat_input_t * input, vlib_cli_command_t * cmd)
1372 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1377 vlib_cli_output (vm, "%=20s%=16s",
1378 "pitr", lcm->lisp_pitr ? "locator-set" : "");
1380 if (!lcm->lisp_pitr)
1382 vlib_cli_output (vm, "%=20s", "disable");
1386 if (~0 == lcm->pitr_map_index)
1388 tmp_str = format (0, "N/A");
1392 m = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
1393 if (~0 != m->locator_set_index)
1396 pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index);
1397 tmp_str = format (0, "%s", ls->name);
1401 tmp_str = format (0, "N/A");
1404 vec_add1 (tmp_str, 0);
1406 vlib_cli_output (vm, "%=20s%=16s", "enable", tmp_str);
1414 VLIB_CLI_COMMAND (lisp_show_pitr_command) = {
1415 .path = "show lisp pitr",
1416 .short_help = "Show pitr",
1417 .function = lisp_show_pitr_command_fn,
1422 format_eid_entry (u8 * s, va_list * args)
1424 vnet_main_t *vnm = va_arg (*args, vnet_main_t *);
1425 lisp_cp_main_t *lcm = va_arg (*args, lisp_cp_main_t *);
1426 mapping_t *mapit = va_arg (*args, mapping_t *);
1427 locator_set_t *ls = va_arg (*args, locator_set_t *);
1428 gid_address_t *gid = &mapit->eid;
1429 u32 ttl = mapit->ttl;
1430 u8 aut = mapit->authoritative;
1435 u8 *type = ls->local ? format (0, "local(%s)", ls->name)
1436 : format (0, "remote");
1438 if (vec_len (ls->locator_indices) == 0)
1440 s = format (s, "%-35U%-30s%-20u%-u", format_gid_address, gid,
1445 vec_foreach (loc_index, ls->locator_indices)
1447 locator_t *l = pool_elt_at_index (lcm->locator_pool, loc_index[0]);
1449 loc = format (0, "%U", format_vnet_sw_if_index_name, vnm,
1452 loc = format (0, "%U", format_ip_address,
1453 &gid_address_ip (&l->address));
1457 s = format (s, "%-35U%-20s%-30v%-20u%-u\n", format_gid_address,
1458 gid, type, loc, ttl, aut);
1462 s = format (s, "%55s%v\n", "", loc);
1468 static clib_error_t *
1469 lisp_show_eid_table_command_fn (vlib_main_t * vm,
1470 unformat_input_t * input,
1471 vlib_cli_command_t * cmd)
1473 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1475 unformat_input_t _line_input, *line_input = &_line_input;
1481 memset (&eid, 0, sizeof (eid));
1483 /* Get a line of input. */
1484 if (!unformat_user (input, unformat_line_input, line_input))
1487 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1489 if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
1491 else if (unformat (line_input, "local"))
1493 else if (unformat (line_input, "remote"))
1496 return clib_error_return (0, "parse error: '%U'",
1497 format_unformat_error, line_input);
1500 vlib_cli_output (vm, "%-35s%-20s%-30s%-20s%-s",
1501 "EID", "type", "locators", "ttl", "autoritative");
1506 pool_foreach (mapit, lcm->mapping_pool,
1508 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1509 mapit->locator_set_index);
1510 if (filter && !((1 == filter && ls->local) ||
1511 (2 == filter && !ls->local)))
1515 vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
1522 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &eid);
1523 if ((u32) ~ 0 == mi)
1526 mapit = pool_elt_at_index (lcm->mapping_pool, mi);
1527 locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool,
1528 mapit->locator_set_index);
1530 if (filter && !((1 == filter && ls->local) ||
1531 (2 == filter && !ls->local)))
1536 vlib_cli_output (vm, "%U,", format_eid_entry, lcm->vnet_main,
1544 VLIB_CLI_COMMAND (lisp_cp_show_eid_table_command) = {
1545 .path = "show lisp eid-table",
1546 .short_help = "Shows EID table",
1547 .function = lisp_show_eid_table_command_fn,
1551 /* cleans locator to locator-set data and removes locators not part of
1552 * any locator-set */
1554 clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi)
1556 u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes, *to_be_deleted = 0;
1557 locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool, lsi);
1558 for (i = 0; i < vec_len (ls->locator_indices); i++)
1560 loc_indexp = vec_elt_at_index (ls->locator_indices, i);
1561 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets,
1563 for (j = 0; j < vec_len (ls_indexes[0]); j++)
1565 ls_indexp = vec_elt_at_index (ls_indexes[0], j);
1566 if (ls_indexp[0] == lsi)
1570 /* delete index for removed locator-set */
1571 vec_del1 (ls_indexes[0], j);
1573 /* delete locator if it's part of no locator-set */
1574 if (vec_len (ls_indexes[0]) == 0)
1576 pool_put_index (lcm->locator_pool, loc_indexp[0]);
1577 vec_add1 (to_be_deleted, i);
1583 for (i = 0; i < vec_len (to_be_deleted); i++)
1585 loc_indexp = vec_elt_at_index (to_be_deleted, i);
1586 vec_del1 (ls->locator_indices, loc_indexp[0]);
1588 vec_free (to_be_deleted);
1592 static inline uword *
1593 get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p)
1595 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1600 /* find locator-set */
1603 p = hash_get_mem (lcm->locator_set_index_by_name, a->name);
1614 is_locator_in_locator_set (lisp_cp_main_t * lcm, locator_set_t * ls,
1620 ASSERT (ls != NULL);
1621 ASSERT (loc != NULL);
1623 vec_foreach (locit, ls->locator_indices)
1625 itloc = pool_elt_at_index (lcm->locator_pool, locit[0]);
1626 if ((ls->local && itloc->sw_if_index == loc->sw_if_index) ||
1627 (!ls->local && !gid_address_cmp (&itloc->address, &loc->address)))
1629 clib_warning ("Duplicate locator");
1630 return VNET_API_ERROR_VALUE_EXIST;
1638 remove_locator_from_locator_set (locator_set_t * ls, u32 * locit,
1639 u32 ls_index, u32 loc_id)
1641 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1642 u32 **ls_indexes = NULL;
1644 ASSERT (ls != NULL);
1645 ASSERT (locit != NULL);
1647 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets, locit[0]);
1648 pool_put_index (lcm->locator_pool, locit[0]);
1649 vec_del1 (ls->locator_indices, loc_id);
1650 vec_del1 (ls_indexes[0], ls_index);
1654 vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a,
1655 locator_set_t * ls, u32 * ls_result)
1657 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1658 locator_t *loc = NULL, *itloc = NULL;
1659 uword _p = (u32) ~ 0, *p = &_p;
1660 u32 loc_index = ~0, ls_index = ~0, *locit = NULL, **ls_indexes = NULL;
1666 if (vnet_lisp_enable_disable_status () == 0)
1668 clib_warning ("LISP is disabled!");
1669 return VNET_API_ERROR_LISP_DISABLED;
1672 p = get_locator_set_index (a, p);
1675 clib_warning ("locator-set %v doesn't exist", a->name);
1676 return VNET_API_ERROR_INVALID_ARGUMENT;
1681 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1684 clib_warning ("locator-set %d to be overwritten doesn't exist!",
1686 return VNET_API_ERROR_INVALID_ARGUMENT;
1693 ls_result[0] = p[0];
1695 /* allocate locators */
1696 vec_foreach (itloc, a->locators)
1698 ret = is_locator_in_locator_set (lcm, ls, itloc);
1704 pool_get (lcm->locator_pool, loc);
1706 loc_index = loc - lcm->locator_pool;
1708 vec_add1 (ls->locator_indices, loc_index);
1710 vec_validate (lcm->locator_to_locator_sets, loc_index);
1711 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets,
1713 vec_add1 (ls_indexes[0], ls_index);
1720 itloc = a->locators;
1722 vec_foreach (locit, ls->locator_indices)
1724 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
1726 if (loc->local && loc->sw_if_index == itloc->sw_if_index)
1728 remove_locator_from_locator_set (ls, locit, ls_index, loc_id);
1730 if (0 == loc->local &&
1731 !gid_address_cmp (&loc->address, &itloc->address))
1733 remove_locator_from_locator_set (ls, locit, ls_index, loc_id);
1744 vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
1747 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1749 uword _p = (u32) ~ 0, *p = &_p;
1754 if (vnet_lisp_enable_disable_status () == 0)
1756 clib_warning ("LISP is disabled!");
1757 return VNET_API_ERROR_LISP_DISABLED;
1762 p = get_locator_set_index (a, p);
1765 if (p && p[0] != (u32) ~ 0)
1767 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1770 clib_warning ("locator-set %d to be overwritten doesn't exist!",
1775 /* clean locator to locator-set vectors and remove locators if
1776 * they're not part of another locator-set */
1777 clean_locator_to_locator_set (lcm, p[0]);
1779 /* remove locator indices from locator set */
1780 vec_free (ls->locator_indices);
1785 ls_result[0] = p[0];
1787 /* new locator-set */
1790 pool_get (lcm->locator_set_pool, ls);
1791 memset (ls, 0, sizeof (*ls));
1792 ls_index = ls - lcm->locator_set_pool;
1796 ls->name = vec_dup (a->name);
1798 if (!lcm->locator_set_index_by_name)
1799 lcm->locator_set_index_by_name = hash_create_vec (
1807 hash_set_mem (lcm->locator_set_index_by_name, ls->name,
1810 /* mark as local locator-set */
1811 vec_add1 (lcm->local_locator_set_indexes, ls_index);
1813 ls->local = a->local;
1815 ls_result[0] = ls_index;
1818 ret = vnet_lisp_add_del_locator (a, ls, NULL);
1826 p = get_locator_set_index (a, p);
1829 clib_warning ("locator-set %v doesn't exists", a->name);
1833 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1836 clib_warning ("locator-set with index %d doesn't exists", p[0]);
1840 if (lcm->mreq_itr_rlocs == p[0])
1842 clib_warning ("Can't delete the locator-set used to constrain "
1843 "the itr-rlocs in map-requests!");
1847 if (vec_len (lcm->locator_set_to_eids) != 0)
1849 eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids, p[0]);
1850 if (vec_len (eid_indexes[0]) != 0)
1853 ("Can't delete a locator that supports a mapping!");
1858 /* clean locator to locator-sets data */
1859 clean_locator_to_locator_set (lcm, p[0]);
1865 vec_foreach_index (it, lcm->local_locator_set_indexes)
1867 lsi = vec_elt (lcm->local_locator_set_indexes, it);
1870 vec_del1 (lcm->local_locator_set_indexes, it);
1874 hash_unset_mem (lcm->locator_set_index_by_name, ls->name);
1876 vec_free (ls->name);
1877 vec_free (ls->locator_indices);
1878 pool_put (lcm->locator_set_pool, ls);
1884 vnet_lisp_enable_disable (u8 is_enable)
1887 clib_error_t *error = 0;
1888 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1889 vnet_lisp_gpe_enable_disable_args_t _a, *a = &_a;
1891 a->is_en = is_enable;
1892 error = vnet_lisp_gpe_enable_disable (a);
1895 return clib_error_return (0, "failed to %s data-plane!",
1896 a->is_en ? "enable" : "disable");
1901 /* enable all l2 and l3 ifaces */
1904 hash_foreach(vni, dp_table, lcm->table_id_by_vni, ({
1905 dp_add_del_iface(lcm, vni, 0, 1);
1907 hash_foreach(vni, dp_table, lcm->bd_id_by_vni, ({
1908 dp_add_del_iface(lcm, vni, /* is_l2 */ 1, 1);
1914 /* clear interface table */
1915 hash_free (lcm->dp_intf_by_vni);
1916 hash_free (lcm->fwd_entry_by_mapping_index);
1917 pool_free (lcm->fwd_entry_pool);
1920 /* update global flag */
1921 lcm->is_enabled = is_enable;
1926 static clib_error_t *
1927 lisp_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input,
1928 vlib_cli_command_t * cmd)
1930 unformat_input_t _line_input, *line_input = &_line_input;
1934 /* Get a line of input. */
1935 if (!unformat_user (input, unformat_line_input, line_input))
1938 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1940 if (unformat (line_input, "enable"))
1945 else if (unformat (line_input, "disable"))
1949 return clib_error_return (0, "parse error: '%U'",
1950 format_unformat_error, line_input);
1955 return clib_error_return (0, "state not set");
1957 return vnet_lisp_enable_disable (is_enabled);
1961 VLIB_CLI_COMMAND (lisp_cp_enable_disable_command) = {
1963 .short_help = "lisp [enable|disable]",
1964 .function = lisp_enable_disable_command_fn,
1969 vnet_lisp_enable_disable_status (void)
1971 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1972 return lcm->is_enabled;
1976 format_lisp_status (u8 * s, va_list * args)
1978 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1979 return format (s, "%s", lcm->is_enabled ? "enabled" : "disabled");
1982 static clib_error_t *
1983 lisp_show_status_command_fn (vlib_main_t * vm, unformat_input_t * input,
1984 vlib_cli_command_t * cmd)
1987 msg = format (msg, "feature: %U\ngpe: %U\n",
1988 format_lisp_status, format_vnet_lisp_gpe_status);
1989 vlib_cli_output (vm, "%v", msg);
1995 VLIB_CLI_COMMAND (lisp_show_status_command) = {
1996 .path = "show lisp status",
1997 .short_help = "show lisp status",
1998 .function = lisp_show_status_command_fn,
2002 static clib_error_t *
2003 lisp_show_eid_table_map_command_fn (vlib_main_t * vm,
2004 unformat_input_t * input,
2005 vlib_cli_command_t * cmd)
2008 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2010 vlib_cli_output (vm, "%=10s%=10s", "VNI", "VRF");
2013 hash_foreach_pair (p, lcm->table_id_by_vni,
2015 vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
2023 VLIB_CLI_COMMAND (lisp_show_eid_table_map_command) = {
2024 .path = "show lisp eid-table map",
2025 .short_help = "show lisp eid-table vni to vrf mappings",
2026 .function = lisp_show_eid_table_map_command_fn,
2030 static clib_error_t *
2031 lisp_add_del_locator_set_command_fn (vlib_main_t * vm,
2032 unformat_input_t * input,
2033 vlib_cli_command_t * cmd)
2035 lisp_gpe_main_t *lgm = &lisp_gpe_main;
2036 vnet_main_t *vnm = lgm->vnet_main;
2037 unformat_input_t _line_input, *line_input = &_line_input;
2039 clib_error_t *error = 0;
2040 u8 *locator_set_name = 0;
2041 locator_t locator, *locators = 0;
2042 vnet_lisp_add_del_locator_set_args_t _a, *a = &_a;
2046 memset (&locator, 0, sizeof (locator));
2047 memset (a, 0, sizeof (a[0]));
2049 /* Get a line of input. */
2050 if (!unformat_user (input, unformat_line_input, line_input))
2053 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2055 if (unformat (line_input, "add %_%v%_", &locator_set_name))
2057 else if (unformat (line_input, "del %_%v%_", &locator_set_name))
2059 else if (unformat (line_input, "iface %U p %d w %d",
2060 unformat_vnet_sw_interface, vnm,
2061 &locator.sw_if_index, &locator.priority,
2065 vec_add1 (locators, locator);
2069 error = unformat_parse_error (line_input);
2074 a->name = locator_set_name;
2075 a->locators = locators;
2079 rv = vnet_lisp_add_del_locator_set (a, &ls_index);
2082 error = clib_error_return (0, "failed to %s locator-set!",
2083 is_add ? "add" : "delete");
2087 vec_free (locators);
2088 if (locator_set_name)
2089 vec_free (locator_set_name);
2094 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_set_command) = {
2095 .path = "lisp locator-set",
2096 .short_help = "lisp locator-set add/del <name> [iface <iface-name> "
2097 "p <priority> w <weight>]",
2098 .function = lisp_add_del_locator_set_command_fn,
2102 static clib_error_t *
2103 lisp_add_del_locator_in_set_command_fn (vlib_main_t * vm,
2104 unformat_input_t * input,
2105 vlib_cli_command_t * cmd)
2107 lisp_gpe_main_t *lgm = &lisp_gpe_main;
2108 vnet_main_t *vnm = lgm->vnet_main;
2109 unformat_input_t _line_input, *line_input = &_line_input;
2111 clib_error_t *error = 0;
2112 u8 *locator_set_name = 0;
2113 u8 locator_set_name_set = 0;
2114 locator_t locator, *locators = 0;
2115 vnet_lisp_add_del_locator_set_args_t _a, *a = &_a;
2118 memset (&locator, 0, sizeof (locator));
2119 memset (a, 0, sizeof (a[0]));
2121 /* Get a line of input. */
2122 if (!unformat_user (input, unformat_line_input, line_input))
2125 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2127 if (unformat (line_input, "add"))
2129 else if (unformat (line_input, "del"))
2131 else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name))
2132 locator_set_name_set = 1;
2133 else if (unformat (line_input, "iface %U p %d w %d",
2134 unformat_vnet_sw_interface, vnm,
2135 &locator.sw_if_index, &locator.priority,
2139 vec_add1 (locators, locator);
2143 error = unformat_parse_error (line_input);
2148 if (!locator_set_name_set)
2150 error = clib_error_return (0, "locator_set name not set!");
2154 a->name = locator_set_name;
2155 a->locators = locators;
2159 vnet_lisp_add_del_locator (a, 0, &ls_index);
2162 vec_free (locators);
2163 vec_free (locator_set_name);
2168 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_in_set_command) = {
2169 .path = "lisp locator",
2170 .short_help = "lisp locator add/del locator-set <name> iface <iface-name> "
2171 "p <priority> w <weight>",
2172 .function = lisp_add_del_locator_in_set_command_fn,
2176 static clib_error_t *
2177 lisp_cp_show_locator_sets_command_fn (vlib_main_t * vm,
2178 unformat_input_t * input,
2179 vlib_cli_command_t * cmd)
2181 locator_set_t *lsit;
2184 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2186 vlib_cli_output (vm, "%=20s%=16s%=16s%=16s", "Locator-set", "Locator",
2187 "Priority", "Weight");
2190 pool_foreach (lsit, lcm->locator_set_pool,
2196 msg = format (msg, "%=16v", lsit->name);
2200 msg = format (msg, "%=16s", "remote");
2202 vec_foreach (locit, lsit->locator_indices)
2206 msg = format (msg, "%16s", " ");
2208 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
2210 msg = format (msg, "%16d%16d%16d\n", loc->sw_if_index, loc->priority,
2213 msg = format (msg, "%16U%16d%16d\n", format_ip_address,
2214 &gid_address_ip(&loc->address), loc->priority,
2218 vlib_cli_output (vm, "%v", msg);
2226 VLIB_CLI_COMMAND (lisp_cp_show_locator_sets_command) = {
2227 .path = "show lisp locator-set",
2228 .short_help = "Shows locator-sets",
2229 .function = lisp_cp_show_locator_sets_command_fn,
2233 static map_resolver_t *
2234 get_map_resolver (ip_address_t * a)
2236 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2239 vec_foreach (mr, lcm->map_resolvers)
2241 if (!ip_address_cmp (&mr->address, a))
2250 vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
2252 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2254 map_resolver_t _mr, *mr = &_mr;
2256 if (vnet_lisp_enable_disable_status () == 0)
2258 clib_warning ("LISP is disabled!");
2259 return VNET_API_ERROR_LISP_DISABLED;
2265 if (get_map_resolver (&a->address))
2267 clib_warning ("map-resolver %U already exists!", format_ip_address,
2272 memset (mr, 0, sizeof (*mr));
2273 ip_address_copy (&mr->address, &a->address);
2274 vec_add1 (lcm->map_resolvers, *mr);
2276 if (vec_len (lcm->map_resolvers) == 1)
2277 lcm->do_map_resolver_election = 1;
2281 for (i = 0; i < vec_len (lcm->map_resolvers); i++)
2283 mr = vec_elt_at_index (lcm->map_resolvers, i);
2284 if (!ip_address_cmp (&mr->address, &a->address))
2286 if (!ip_address_cmp (&mr->address, &lcm->active_map_resolver))
2287 lcm->do_map_resolver_election = 1;
2289 vec_del1 (lcm->map_resolvers, i);
2297 static clib_error_t *
2298 lisp_add_del_map_resolver_command_fn (vlib_main_t * vm,
2299 unformat_input_t * input,
2300 vlib_cli_command_t * cmd)
2302 unformat_input_t _line_input, *line_input = &_line_input;
2303 u8 is_add = 1, addr_set = 0;
2304 ip_address_t ip_addr;
2305 clib_error_t *error = 0;
2307 vnet_lisp_add_del_map_resolver_args_t _a, *a = &_a;
2309 /* Get a line of input. */
2310 if (!unformat_user (input, unformat_line_input, line_input))
2313 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2315 if (unformat (line_input, "add"))
2317 else if (unformat (line_input, "del"))
2319 else if (unformat (line_input, "%U", unformat_ip_address, &ip_addr))
2323 error = unformat_parse_error (line_input);
2330 error = clib_error_return (0, "Map-resolver address must be set!");
2335 a->address = ip_addr;
2336 rv = vnet_lisp_add_del_map_resolver (a);
2339 error = clib_error_return (0, "failed to %s map-resolver!",
2340 is_add ? "add" : "delete");
2348 VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = {
2349 .path = "lisp map-resolver",
2350 .short_help = "lisp map-resolver add/del <ip_address>",
2351 .function = lisp_add_del_map_resolver_command_fn,
2356 vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a)
2358 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2361 if (vnet_lisp_enable_disable_status () == 0)
2363 clib_warning ("LISP is disabled!");
2364 return VNET_API_ERROR_LISP_DISABLED;
2369 p = hash_get_mem (lcm->locator_set_index_by_name, a->locator_set_name);
2372 clib_warning ("locator-set %v doesn't exist", a->locator_set_name);
2373 return VNET_API_ERROR_INVALID_ARGUMENT;
2376 lcm->mreq_itr_rlocs = p[0];
2380 lcm->mreq_itr_rlocs = ~0;
2386 static clib_error_t *
2387 lisp_add_del_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2388 unformat_input_t * input,
2389 vlib_cli_command_t * cmd)
2391 unformat_input_t _line_input, *line_input = &_line_input;
2393 u8 *locator_set_name = 0;
2394 clib_error_t *error = 0;
2396 vnet_lisp_add_del_mreq_itr_rloc_args_t _a, *a = &_a;
2398 /* Get a line of input. */
2399 if (!unformat_user (input, unformat_line_input, line_input))
2402 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2404 if (unformat (line_input, "del"))
2406 else if (unformat (line_input, "add %s", &locator_set_name))
2410 error = unformat_parse_error (line_input);
2416 a->locator_set_name = locator_set_name;
2417 rv = vnet_lisp_add_del_mreq_itr_rlocs (a);
2420 error = clib_error_return (0, "failed to %s map-request itr-rlocs!",
2421 is_add ? "add" : "delete");
2424 vec_free (locator_set_name);
2432 VLIB_CLI_COMMAND (lisp_add_del_map_request_command) = {
2433 .path = "lisp map-request itr-rlocs",
2434 .short_help = "lisp map-request itr-rlocs add/del <locator_set_name>",
2435 .function = lisp_add_del_mreq_itr_rlocs_command_fn,
2439 static clib_error_t *
2440 lisp_show_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2441 unformat_input_t * input,
2442 vlib_cli_command_t * cmd)
2444 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2445 locator_set_t *loc_set;
2447 vlib_cli_output (vm, "%=20s", "itr-rlocs");
2449 if (~0 == lcm->mreq_itr_rlocs)
2454 loc_set = pool_elt_at_index (lcm->locator_set_pool, lcm->mreq_itr_rlocs);
2456 vlib_cli_output (vm, "%=20s", loc_set->name);
2462 VLIB_CLI_COMMAND (lisp_show_map_request_command) = {
2463 .path = "show lisp map-request itr-rlocs",
2464 .short_help = "Shows map-request itr-rlocs",
2465 .function = lisp_show_mreq_itr_rlocs_command_fn,
2469 /* Statistics (not really errors) */
2470 #define foreach_lisp_cp_lookup_error \
2472 _(MAP_REQUESTS_SENT, "map-request sent")
2474 static char *lisp_cp_lookup_error_strings[] = {
2475 #define _(sym,string) string,
2476 foreach_lisp_cp_lookup_error
2482 #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
2483 foreach_lisp_cp_lookup_error
2485 LISP_CP_LOOKUP_N_ERROR,
2486 } lisp_cp_lookup_error_t;
2490 LISP_CP_LOOKUP_NEXT_DROP,
2491 LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
2492 LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
2493 LISP_CP_LOOKUP_N_NEXT,
2494 } lisp_cp_lookup_next_t;
2498 gid_address_t dst_eid;
2499 ip_address_t map_resolver_ip;
2500 } lisp_cp_lookup_trace_t;
2503 format_lisp_cp_lookup_trace (u8 * s, va_list * args)
2505 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2506 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2507 lisp_cp_lookup_trace_t *t = va_arg (*args, lisp_cp_lookup_trace_t *);
2509 s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
2510 format_ip_address, &t->map_resolver_ip, format_gid_address,
2516 get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip,
2517 ip_address_t * sloc)
2519 map_resolver_t *mrit;
2522 if (vec_len (lcm->map_resolvers) == 0)
2524 clib_warning ("No map-resolver configured");
2528 /* find the first mr ip we have a route to and the ip of the
2529 * iface that has a route to it */
2530 vec_foreach (mrit, lcm->map_resolvers)
2533 if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, a, sloc))
2535 ip_address_copy (mr_ip, a);
2537 /* also update globals */
2542 clib_warning ("Can't find map-resolver and local interface ip!");
2546 static gid_address_t *
2547 build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
2553 ip_interface_address_t *ia = 0;
2554 gid_address_t gid_data, *gid = &gid_data;
2555 gid_address_t *rlocs = 0;
2556 ip_prefix_t *ippref = &gid_address_ippref (gid);
2557 ip_address_t *rloc = &ip_prefix_addr (ippref);
2559 memset (gid, 0, sizeof (gid[0]));
2560 gid_address_type (gid) = GID_ADDR_IP_PREFIX;
2561 for (i = 0; i < vec_len (loc_set->locator_indices); i++)
2563 loc_indexp = vec_elt_at_index (loc_set->locator_indices, i);
2564 loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
2566 /* Add ipv4 locators first TODO sort them */
2569 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
2570 loc->sw_if_index, 1 /* unnumbered */,
2572 addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
2573 ip_address_set (rloc, addr, IP4);
2574 ip_prefix_len (ippref) = 32;
2575 ip_prefix_normalize (ippref);
2576 vec_add1 (rlocs, gid[0]);
2579 /* Add ipv6 locators */
2580 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
2581 loc->sw_if_index, 1 /* unnumbered */,
2583 addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
2584 ip_address_set (rloc, addr, IP6);
2585 ip_prefix_len (ippref) = 128;
2586 ip_prefix_normalize (ippref);
2587 vec_add1 (rlocs, gid[0]);
2595 static vlib_buffer_t *
2596 build_encapsulated_map_request (lisp_cp_main_t * lcm,
2597 gid_address_t * seid, gid_address_t * deid,
2598 locator_set_t * loc_set, ip_address_t * mr_ip,
2599 ip_address_t * sloc, u8 is_smr_invoked,
2600 u64 * nonce_res, u32 * bi_res)
2604 gid_address_t *rlocs = 0;
2605 vlib_main_t *vm = lcm->vlib_main;
2607 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
2609 clib_warning ("Can't allocate buffer for Map-Request!");
2613 b = vlib_get_buffer (vm, bi);
2615 /* leave some space for the encap headers */
2616 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
2619 rlocs = build_itr_rloc_list (lcm, loc_set);
2622 lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, nonce_res);
2624 /* push ecm: udp-ip-lisp */
2625 lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid);
2627 /* push outer ip header */
2628 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc,
2638 reset_pending_mr_counters (pending_map_request_t * r)
2640 r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME;
2645 elect_map_resolver (lisp_cp_main_t * lcm)
2649 vec_foreach (mr, lcm->map_resolvers)
2653 ip_address_copy (&lcm->active_map_resolver, &mr->address);
2654 lcm->do_map_resolver_election = 0;
2661 #define send_encapsulated_map_request(lcm, seid, deid, smr) \
2662 _send_encapsulated_map_request(lcm, seid, deid, smr, 0)
2664 #define resend_encapsulated_map_request(lcm, seid, deid, smr) \
2665 _send_encapsulated_map_request(lcm, seid, deid, smr, 1)
2668 _send_encapsulated_map_request (lisp_cp_main_t * lcm,
2669 gid_address_t * seid, gid_address_t * deid,
2670 u8 is_smr_invoked, u8 is_resend)
2673 u32 next_index, bi = 0, *to_next, map_index;
2677 locator_set_t *loc_set;
2679 pending_map_request_t *pmr, *duplicate_pmr = 0;
2683 ASSERT (*lcm->pending_map_request_lock);
2685 /* if there is already a pending request remember it */
2688 pool_foreach(pmr, lcm->pending_map_requests_pool,
2690 if (!gid_address_cmp (&pmr->src, seid)
2691 && !gid_address_cmp (&pmr->dst, deid))
2693 duplicate_pmr = pmr;
2699 if (!is_resend && duplicate_pmr)
2701 /* don't send the request if there is a pending map request already */
2705 /* get locator-set for seid */
2706 if (!lcm->lisp_pitr)
2708 map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
2709 if (map_index == ~0)
2711 clib_warning ("No local mapping found in eid-table for %U!",
2712 format_gid_address, seid);
2716 map = pool_elt_at_index (lcm->mapping_pool, map_index);
2721 ("Mapping found for src eid %U is not marked as local!",
2722 format_gid_address, seid);
2725 ls_index = map->locator_set_index;
2729 map_index = lcm->pitr_map_index;
2730 map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
2731 ls_index = map->locator_set_index;
2734 /* overwrite locator set if map-request itr-rlocs configured */
2735 if (~0 != lcm->mreq_itr_rlocs)
2737 ls_index = lcm->mreq_itr_rlocs;
2740 loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index);
2742 while (lcm->do_map_resolver_election
2743 | (0 == ip_fib_get_first_egress_ip_for_dst (lcm,
2744 &lcm->active_map_resolver,
2747 if (0 == elect_map_resolver (lcm))
2748 /* all Mrs are down */
2751 duplicate_pmr->to_be_removed = 1;
2753 /* restart MR checking by marking all of them up */
2754 vec_foreach (mr, lcm->map_resolvers) mr->is_down = 0;
2760 /* build the encapsulated map request */
2761 b = build_encapsulated_map_request (lcm, seid, deid, loc_set,
2762 &lcm->active_map_resolver,
2763 &sloc, is_smr_invoked, &nonce, &bi);
2768 /* set fib index to default and lookup node */
2769 vnet_buffer (b)->sw_if_index[VLIB_TX] = 0;
2770 next_index = (ip_addr_version (&lcm->active_map_resolver) == IP4) ?
2771 ip4_lookup_node.index : ip6_lookup_node.index;
2773 f = vlib_get_frame_to_node (lcm->vlib_main, next_index);
2775 /* Enqueue the packet */
2776 to_next = vlib_frame_vector_args (f);
2779 vlib_put_frame_to_node (lcm->vlib_main, next_index, f);
2782 /* if there is a pending request already update it */
2784 if (clib_fifo_elts (duplicate_pmr->nonces) >= PENDING_MREQ_QUEUE_LEN)
2786 /* remove the oldest nonce */
2787 u64 CLIB_UNUSED (tmp), *nonce_del;
2788 nonce_del = clib_fifo_head (duplicate_pmr->nonces);
2789 hash_unset (lcm->pending_map_requests_by_nonce, nonce_del[0]);
2790 clib_fifo_sub1 (duplicate_pmr->nonces, tmp);
2793 clib_fifo_add1 (duplicate_pmr->nonces, nonce);
2794 hash_set (lcm->pending_map_requests_by_nonce, nonce,
2795 duplicate_pmr - lcm->pending_map_requests_pool);
2799 /* add map-request to pending requests table */
2800 pool_get (lcm->pending_map_requests_pool, pmr);
2801 memset (pmr, 0, sizeof (*pmr));
2802 gid_address_copy (&pmr->src, seid);
2803 gid_address_copy (&pmr->dst, deid);
2804 clib_fifo_add1 (pmr->nonces, nonce);
2805 pmr->is_smr_invoked = is_smr_invoked;
2806 reset_pending_mr_counters (pmr);
2807 hash_set (lcm->pending_map_requests_by_nonce, nonce,
2808 pmr - lcm->pending_map_requests_pool);
2815 get_src_and_dst_ip (void *hdr, ip_address_t * src, ip_address_t * dst)
2817 ip4_header_t *ip4 = hdr;
2820 if ((ip4->ip_version_and_header_length & 0xF0) == 0x40)
2822 ip_address_set (src, &ip4->src_address, IP4);
2823 ip_address_set (dst, &ip4->dst_address, IP4);
2828 ip_address_set (src, &ip6->src_address, IP6);
2829 ip_address_set (dst, &ip6->dst_address, IP6);
2834 lisp_get_vni_from_buffer_ip (lisp_cp_main_t * lcm, vlib_buffer_t * b,
2838 u32 vni = ~0, table_id = ~0, fib_index;
2843 ip4_main_t *im4 = &ip4_main;
2844 fib_index = vec_elt (im4->fib_index_by_sw_if_index,
2845 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2846 fib = find_ip4_fib_by_table_index_or_id (im4, fib_index,
2847 IP4_ROUTE_FLAG_FIB_INDEX);
2848 table_id = fib->table_id;
2853 ip6_main_t *im6 = &ip6_main;
2854 fib_index = vec_elt (im6->fib_index_by_sw_if_index,
2855 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2856 fib = find_ip6_fib_by_table_index_or_id (im6, fib_index,
2857 IP6_ROUTE_FLAG_FIB_INDEX);
2858 table_id = fib->table_id;
2861 vnip = hash_get (lcm->vni_by_table_id, table_id);
2865 clib_warning ("vrf %d is not mapped to any vni!", table_id);
2871 lisp_get_vni_from_buffer_eth (lisp_cp_main_t * lcm, vlib_buffer_t * b)
2877 l2input_main_t *l2im = &l2input_main;
2878 l2_input_config_t *config;
2879 l2_bridge_domain_t *bd_config;
2881 sw_if_index0 = vnet_buffer (b)->sw_if_index[VLIB_RX];
2882 config = vec_elt_at_index (l2im->configs, sw_if_index0);
2883 bd_config = vec_elt_at_index (l2im->bd_configs, config->bd_index);
2885 vnip = hash_get (lcm->vni_by_bd_id, bd_config->bd_id);
2889 clib_warning ("bridge domain %d is not mapped to any vni!",
2896 get_src_and_dst_eids_from_buffer (lisp_cp_main_t * lcm, vlib_buffer_t * b,
2897 gid_address_t * src, gid_address_t * dst)
2902 memset (src, 0, sizeof (*src));
2903 memset (dst, 0, sizeof (*dst));
2904 type = vnet_buffer (b)->lisp.overlay_afi;
2906 if (LISP_AFI_IP == type || LISP_AFI_IP6 == type)
2909 u8 version, preflen;
2911 gid_address_type (src) = GID_ADDR_IP_PREFIX;
2912 gid_address_type (dst) = GID_ADDR_IP_PREFIX;
2914 ip = vlib_buffer_get_current (b);
2915 get_src_and_dst_ip (ip, &gid_address_ip (src), &gid_address_ip (dst));
2917 version = gid_address_ip_version (src);
2918 preflen = ip_address_max_len (version);
2919 gid_address_ippref_len (src) = preflen;
2920 gid_address_ippref_len (dst) = preflen;
2922 vni = lisp_get_vni_from_buffer_ip (lcm, b, version);
2923 gid_address_vni (dst) = vni;
2924 gid_address_vni (src) = vni;
2926 else if (LISP_AFI_MAC == type)
2928 ethernet_header_t *eh;
2930 eh = vlib_buffer_get_current (b);
2932 gid_address_type (src) = GID_ADDR_MAC;
2933 gid_address_type (dst) = GID_ADDR_MAC;
2934 mac_copy (&gid_address_mac (src), eh->src_address);
2935 mac_copy (&gid_address_mac (dst), eh->dst_address);
2938 vni = lisp_get_vni_from_buffer_eth (lcm, b);
2940 gid_address_vni (dst) = vni;
2941 gid_address_vni (src) = vni;
2946 lisp_cp_lookup (vlib_main_t * vm, vlib_node_runtime_t * node,
2947 vlib_frame_t * from_frame)
2949 u32 *from, *to_next_drop, di, si;
2950 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2951 u32 pkts_mapped = 0;
2952 uword n_left_from, n_left_to_next_drop;
2954 from = vlib_frame_vector_args (from_frame);
2955 n_left_from = from_frame->n_vectors;
2957 while (n_left_from > 0)
2959 vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
2960 to_next_drop, n_left_to_next_drop);
2962 while (n_left_from > 0 && n_left_to_next_drop > 0)
2966 gid_address_t src, dst;
2971 to_next_drop[0] = pi0;
2973 n_left_to_next_drop -= 1;
2975 b0 = vlib_get_buffer (vm, pi0);
2976 b0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
2978 /* src/dst eid pair */
2979 get_src_and_dst_eids_from_buffer (lcm, b0, &src, &dst);
2981 /* if we have remote mapping for destination already in map-chache
2982 add forwarding tunnel directly. If not send a map-request */
2983 di = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst);
2986 mapping_t *m = vec_elt_at_index (lcm->mapping_pool, di);
2987 /* send a map-request also in case of negative mapping entry
2988 with corresponding action */
2989 if (m->action == LISP_SEND_MAP_REQUEST)
2991 /* send map-request */
2992 queue_map_request (&src, &dst, 0 /* smr_invoked */ ,
2993 0 /* is_resend */ );
2998 si = gid_dictionary_lookup (&lcm->mapping_index_by_gid,
3002 dp_add_fwd_entry (lcm, si, di);
3008 /* send map-request */
3009 queue_map_request (&src, &dst, 0 /* smr_invoked */ ,
3010 0 /* is_resend */ );
3014 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
3016 lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, b0,
3019 memset (tr, 0, sizeof (*tr));
3020 gid_address_copy (&tr->dst_eid, &dst);
3021 if (vec_len (lcm->map_resolvers) > 0)
3023 clib_memcpy (&tr->map_resolver_ip,
3024 vec_elt_at_index (lcm->map_resolvers, 0),
3025 sizeof (ip_address_t));
3028 gid_address_free (&dst);
3029 gid_address_free (&src);
3032 vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
3033 n_left_to_next_drop);
3035 vlib_node_increment_counter (vm, node->node_index,
3036 LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
3038 return from_frame->n_vectors;
3042 VLIB_REGISTER_NODE (lisp_cp_lookup_node) = {
3043 .function = lisp_cp_lookup,
3044 .name = "lisp-cp-lookup",
3045 .vector_size = sizeof (u32),
3046 .format_trace = format_lisp_cp_lookup_trace,
3047 .type = VLIB_NODE_TYPE_INTERNAL,
3049 .n_errors = LISP_CP_LOOKUP_N_ERROR,
3050 .error_strings = lisp_cp_lookup_error_strings,
3052 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
3055 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
3056 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
3057 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
3062 /* lisp_cp_input statistics */
3063 #define foreach_lisp_cp_input_error \
3065 _(MAP_REPLIES_RECEIVED, "map-replies received")
3067 static char *lisp_cp_input_error_strings[] = {
3068 #define _(sym,string) string,
3069 foreach_lisp_cp_input_error
3075 #define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
3076 foreach_lisp_cp_input_error
3078 LISP_CP_INPUT_N_ERROR,
3079 } lisp_cp_input_error_t;
3083 LISP_CP_INPUT_NEXT_DROP,
3084 LISP_CP_INPUT_N_NEXT,
3085 } lisp_cp_input_next_t;
3089 gid_address_t dst_eid;
3090 ip4_address_t map_resolver_ip;
3091 } lisp_cp_input_trace_t;
3094 format_lisp_cp_input_trace (u8 * s, va_list * args)
3096 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
3097 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
3098 CLIB_UNUSED (lisp_cp_input_trace_t * t) =
3099 va_arg (*args, lisp_cp_input_trace_t *);
3101 s = format (s, "LISP-CP-INPUT: TODO");
3106 process_map_reply (void *arg)
3108 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3109 vlib_buffer_t *b = arg;
3110 u32 len = 0, i, ttl, dst_map_index = 0;
3112 pending_map_request_t *pmr;
3114 map_reply_hdr_t *mrep_hdr;
3118 u8 authoritative, action;
3119 locator_t *locators = 0, *loc;
3121 mrep_hdr = vlib_buffer_get_current (b);
3123 lisp_pending_map_request_lock (lcm);
3125 /* Check pending requests table and nonce */
3126 nonce = MREP_NONCE (mrep_hdr);
3127 pmr_index = hash_get (lcm->pending_map_requests_by_nonce, nonce);
3130 clib_warning ("No pending map-request entry with nonce %lu!", nonce);
3133 pmr = pool_elt_at_index (lcm->pending_map_requests_pool, pmr_index[0]);
3135 vlib_buffer_pull (b, sizeof (*mrep_hdr));
3137 for (i = 0; i < MREP_REC_COUNT (mrep_hdr); i++)
3139 h = vlib_buffer_get_current (b);
3140 ttl = clib_net_to_host_u32 (MAP_REC_TTL (h));
3141 action = MAP_REC_ACTION (h);
3142 authoritative = MAP_REC_AUTH (h);
3144 len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed);
3147 clib_warning ("Failed to parse mapping record!");
3148 vec_foreach (loc, locators)
3152 vec_free (locators);
3156 /* insert/update mappings cache */
3157 vnet_lisp_add_del_mapping (&deid, locators, action, authoritative, ttl,
3158 1, 0 /* is_static */ , &dst_map_index);
3160 /* try to program forwarding only if mapping saved or updated */
3161 if ((u32) ~ 0 != dst_map_index)
3162 lisp_add_del_adjacency (lcm, &pmr->src, &deid, 1);
3164 vec_free (locators);
3167 /* remove pending map request entry */
3170 clib_fifo_foreach (noncep, pmr->nonces, ({
3171 hash_unset(lcm->pending_map_requests_by_nonce, noncep[0]);
3175 clib_fifo_free (pmr->nonces);
3176 pool_put (lcm->pending_map_requests_pool, pmr);
3179 lisp_pending_map_request_unlock (lcm);
3184 process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm,
3187 map_request_hdr_t *mreq_hdr;
3188 gid_address_t src, dst;
3191 gid_address_t *itr_rlocs = 0, *rloc;
3193 mreq_hdr = vlib_buffer_get_current (b);
3194 vlib_buffer_pull (b, sizeof (*mreq_hdr));
3196 // nonce = MREQ_NONCE(mreq_hdr);
3198 if (!MREQ_SMR (mreq_hdr))
3200 clib_warning ("Only SMR Map-Requests supported for now!");
3205 len = lisp_msg_parse_addr (b, &src);
3209 /* for now we don't do anything with the itr's rlocs */
3211 lisp_msg_parse_itr_rlocs (b, &itr_rlocs,
3212 MREQ_ITR_RLOC_COUNT (mreq_hdr) + 1);
3216 /* TODO: RLOCs are currently unused, so free them for now */
3217 vec_foreach (rloc, itr_rlocs)
3219 gid_address_free (rloc);
3222 /* parse eid records and send SMR-invoked map-requests */
3223 for (i = 0; i < MREQ_REC_COUNT (mreq_hdr); i++)
3225 memset (&dst, 0, sizeof (dst));
3226 len = lisp_msg_parse_eid_rec (b, &dst);
3229 clib_warning ("Can't parse map-request EID-record");
3232 /* send SMR-invoked map-requests */
3233 queue_map_request (&dst, &src, 1 /* invoked */ , 0 /* resend */ );
3238 queue_map_reply (vlib_buffer_t * b)
3240 vlib_buffer_t *a = clib_mem_alloc (sizeof (a[0]) + b->current_length);
3242 clib_memcpy (a->data, b->data + b->current_data, b->current_length);
3243 a->current_length = b->current_length;
3244 a->current_data = 0;
3246 vl_api_rpc_call_main_thread (process_map_reply, (u8 *) a, sizeof (a[0])
3247 + a->current_length);
3252 lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
3253 vlib_frame_t * from_frame)
3255 u32 n_left_from, *from, *to_next_drop;
3256 lisp_msg_type_e type;
3257 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3259 from = vlib_frame_vector_args (from_frame);
3260 n_left_from = from_frame->n_vectors;
3263 while (n_left_from > 0)
3265 u32 n_left_to_next_drop;
3267 vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
3268 to_next_drop, n_left_to_next_drop);
3269 while (n_left_from > 0 && n_left_to_next_drop > 0)
3277 to_next_drop[0] = bi0;
3279 n_left_to_next_drop -= 1;
3281 b0 = vlib_get_buffer (vm, bi0);
3283 type = lisp_msg_type (vlib_buffer_get_current (b0));
3286 case LISP_MAP_REPLY:
3287 queue_map_reply (b0);
3289 case LISP_MAP_REQUEST:
3290 process_map_request (vm, lcm, b0);
3293 clib_warning ("Unsupported LISP message type %d", type);
3297 b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP];
3299 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
3305 vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
3306 n_left_to_next_drop);
3308 return from_frame->n_vectors;
3312 VLIB_REGISTER_NODE (lisp_cp_input_node) = {
3313 .function = lisp_cp_input,
3314 .name = "lisp-cp-input",
3315 .vector_size = sizeof (u32),
3316 .format_trace = format_lisp_cp_input_trace,
3317 .type = VLIB_NODE_TYPE_INTERNAL,
3319 .n_errors = LISP_CP_INPUT_N_ERROR,
3320 .error_strings = lisp_cp_input_error_strings,
3322 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
3325 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
3331 lisp_cp_init (vlib_main_t * vm)
3333 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3334 clib_error_t *error = 0;
3336 if ((error = vlib_call_init_function (vm, lisp_gpe_init)))
3339 lcm->im4 = &ip4_main;
3340 lcm->im6 = &ip6_main;
3341 lcm->vlib_main = vm;
3342 lcm->vnet_main = vnet_get_main ();
3343 lcm->mreq_itr_rlocs = ~0;
3346 lcm->pending_map_request_lock =
3347 clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
3349 lcm->pending_map_request_lock[0] = 0;
3350 gid_dictionary_init (&lcm->mapping_index_by_gid);
3351 lcm->do_map_resolver_election = 1;
3353 /* default vrf mapped to vni 0 */
3354 hash_set (lcm->table_id_by_vni, 0, 0);
3355 hash_set (lcm->vni_by_table_id, 0, 0);
3357 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp,
3358 lisp_cp_input_node.index, 1 /* is_ip4 */ );
3359 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6,
3360 lisp_cp_input_node.index, 0 /* is_ip4 */ );
3366 send_map_request_thread_fn (void *arg)
3368 map_request_args_t *a = arg;
3369 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3371 lisp_pending_map_request_lock (lcm);
3374 resend_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked);
3376 send_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked);
3378 lisp_pending_map_request_unlock (lcm);
3384 queue_map_request (gid_address_t * seid, gid_address_t * deid,
3385 u8 smr_invoked, u8 is_resend)
3387 map_request_args_t a;
3389 a.is_resend = is_resend;
3390 gid_address_copy (&a.seid, seid);
3391 gid_address_copy (&a.deid, deid);
3392 a.smr_invoked = smr_invoked;
3394 vl_api_rpc_call_main_thread (send_map_request_thread_fn,
3395 (u8 *) & a, sizeof (a));
3400 * Take an action with a pending map request depending on expiration time
3401 * and re-try counters.
3404 update_pending_request (pending_map_request_t * r, f64 dt)
3406 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3409 if (r->time_to_expire - dt < 0)
3410 /* it's time to decide what to do with this pending request */
3412 if (r->retries_num >= NUMBER_OF_RETRIES)
3413 /* too many retries -> assume current map resolver is not available */
3415 mr = get_map_resolver (&lcm->active_map_resolver);
3418 clib_warning ("Map resolver %U not found - probably deleted "
3419 "by the user recently.", format_ip_address,
3420 &lcm->active_map_resolver);
3424 clib_warning ("map resolver %U is unreachable, ignoring",
3425 format_ip_address, &lcm->active_map_resolver);
3427 /* mark current map resolver unavailable so it won't be
3428 * selected next time */
3430 mr->last_update = vlib_time_now (lcm->vlib_main);
3433 reset_pending_mr_counters (r);
3434 elect_map_resolver (lcm);
3436 /* try to find a next eligible map resolver and re-send */
3437 queue_map_request (&r->src, &r->dst, r->is_smr_invoked,
3443 queue_map_request (&r->src, &r->dst, r->is_smr_invoked,
3446 r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME;
3450 r->time_to_expire -= dt;
3454 remove_dead_pending_map_requests (lisp_cp_main_t * lcm)
3457 pending_map_request_t *pmr;
3458 u32 *to_be_removed = 0, *pmr_index;
3460 ASSERT (*lcm->pending_map_request_lock);
3463 pool_foreach (pmr, lcm->pending_map_requests_pool,
3465 if (pmr->to_be_removed)
3467 clib_fifo_foreach (nonce, pmr->nonces, ({
3468 hash_unset (lcm->pending_map_requests_by_nonce, nonce[0]);
3471 vec_add1 (to_be_removed, pmr - lcm->pending_map_requests_pool);
3476 vec_foreach (pmr_index, to_be_removed)
3477 pool_put_index (lcm->pending_map_requests_by_nonce, pmr_index[0]);
3479 vec_free (to_be_removed);
3483 send_map_resolver_service (vlib_main_t * vm,
3484 vlib_node_runtime_t * rt, vlib_frame_t * f)
3487 pending_map_request_t *pmr;
3488 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3492 vlib_process_wait_for_event_or_clock (vm, period);
3494 /* currently no signals are expected - just wait for clock */
3495 (void) vlib_process_get_events (vm, 0);
3497 lisp_pending_map_request_lock (lcm);
3500 pool_foreach (pmr, lcm->pending_map_requests_pool,
3502 if (!pmr->to_be_removed)
3503 update_pending_request (pmr, period);
3507 remove_dead_pending_map_requests (lcm);
3509 lisp_pending_map_request_unlock (lcm);
3517 VLIB_REGISTER_NODE (lisp_retry_service_node,static) = {
3518 .function = send_map_resolver_service,
3519 .type = VLIB_NODE_TYPE_PROCESS,
3520 .name = "lisp-retry-service",
3521 .process_log2_n_stack_bytes = 16,
3525 VLIB_INIT_FUNCTION (lisp_cp_init);
3528 * fd.io coding-style-patch-verification: ON
3531 * eval: (c-set-style "gnu")