2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vnet/lisp-cp/control.h>
17 #include <vnet/lisp-cp/packets.h>
18 #include <vnet/lisp-cp/lisp_msg_serdes.h>
19 #include <vnet/lisp-gpe/lisp_gpe.h>
21 ip_interface_address_t *
22 ip_interface_get_first_interface_address (ip_lookup_main_t *lm, u32 sw_if_index,
25 vnet_main_t *vnm = vnet_get_main ();
26 vnet_sw_interface_t * swif = vnet_get_sw_interface (vnm, sw_if_index);
27 if (loop && swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
28 sw_if_index = swif->unnumbered_sw_if_index;
30 (vec_len((lm)->if_address_pool_index_by_sw_if_index) > (sw_if_index)) ?
31 vec_elt((lm)->if_address_pool_index_by_sw_if_index, (sw_if_index)) :
33 return pool_elt_at_index((lm)->if_address_pool, ia);
37 ip_interface_get_first_address (ip_lookup_main_t * lm, u32 sw_if_index,
40 ip_interface_address_t * ia;
42 ia = ip_interface_get_first_interface_address (lm, sw_if_index, 1);
45 return ip_interface_address_get_address (lm, ia);
49 ip_interface_get_first_ip_address (lisp_cp_main_t * lcm, u32 sw_if_index,
50 u8 version, ip_address_t * result)
52 ip_lookup_main_t * lm;
55 lm = (version == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
56 addr = ip_interface_get_first_address (lm, sw_if_index, version);
60 ip_address_set (result, addr, version);
65 ip_fib_lookup_with_table (lisp_cp_main_t * lcm, u32 fib_index,
68 if (ip_addr_version (dst) == IP4)
69 return ip4_fib_lookup_with_table (lcm->im4, fib_index, &ip_addr_v4(dst),
72 return ip6_fib_lookup_with_table (lcm->im6, fib_index, &ip_addr_v6(dst));
76 ip_fib_get_egress_iface_for_dst_with_lm (lisp_cp_main_t * lcm,
78 ip_lookup_main_t * lm)
83 adj_index = ip_fib_lookup_with_table (lcm, 0, dst);
84 adj = ip_get_adjacency (lm, adj_index);
89 /* we only want outgoing routes */
90 if (adj->lookup_next_index != IP_LOOKUP_NEXT_ARP
91 && adj->lookup_next_index != IP_LOOKUP_NEXT_REWRITE)
94 return adj->rewrite_header.sw_if_index;
98 * Find the sw_if_index of the interface that would be used to egress towards
102 ip_fib_get_egress_iface_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst)
104 ip_lookup_main_t * lm;
106 lm = ip_addr_version (dst) == IP4 ?
107 &lcm->im4->lookup_main : &lcm->im6->lookup_main;
109 return ip_fib_get_egress_iface_for_dst_with_lm (lcm, dst, lm);
113 * Find first IP of the interface that would be used to egress towards dst.
114 * Returns 1 if the address is found 0 otherwise.
117 ip_fib_get_first_egress_ip_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst,
118 ip_address_t * result)
121 ip_lookup_main_t * lm;
127 ipver = ip_addr_version(dst);
129 lm = (ipver == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
130 si = ip_fib_get_egress_iface_for_dst_with_lm (lcm, dst, lm);
135 /* find the first ip address */
136 addr = ip_interface_get_first_address (lm, si, ipver);
140 ip_address_set (result, addr, ipver);
145 dp_add_del_iface (lisp_cp_main_t * lcm, u32 vni, u8 is_add)
147 uword * table_id, * intf;
148 vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai;
150 table_id = hash_get(lcm->table_id_by_vni, vni);
154 clib_warning ("vni %d not associated to a vrf!", vni);
155 return VNET_API_ERROR_INVALID_VALUE;
158 intf = hash_get(lcm->dp_intf_by_vni, vni);
160 /* enable/disable data-plane interface */
163 /* create interface */
168 ai->table_id = table_id[0];
169 vnet_lisp_gpe_add_del_iface (ai, 0);
171 /* keep track of vnis for which interfaces have been created */
172 hash_set(lcm->dp_intf_by_vni, vni, 1);
179 clib_warning("interface for vni %d doesn't exist!", vni);
180 return VNET_API_ERROR_INVALID_VALUE;
185 ai->table_id = table_id[0];
186 vnet_lisp_gpe_add_del_iface (ai, 0);
187 hash_unset(lcm->dp_intf_by_vni, vni);
194 dp_del_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index)
196 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, * a = &_a;
197 fwd_entry_t * fe = 0;
199 memset(a, 0, sizeof(*a));
201 feip = hash_get(lcm->fwd_entry_by_mapping_index, dst_map_index);
205 fe = pool_elt_at_index(lcm->fwd_entry_pool, feip[0]);
207 /* delete dp fwd entry */
210 a->dlocator = fe->dst_loc;
211 a->slocator = fe->src_loc;
212 a->vni = gid_address_vni(&a->deid);
213 gid_address_copy(&a->deid, &fe->deid);
215 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
217 /* delete entry in fwd table */
218 hash_unset(lcm->fwd_entry_by_mapping_index, dst_map_index);
219 pool_put(lcm->fwd_entry_pool, fe);
223 * Finds first remote locator with best (lowest) priority that has a local
224 * peer locator with an underlying route to it.
228 get_locator_pair (lisp_cp_main_t* lcm, mapping_t * lcl_map, mapping_t * rmt_map,
229 ip_address_t * lcl_loc, ip_address_t * rmt_loc)
231 u32 i, minp = ~0, limitp = 0, li, check_index = 0, done = 0, esi;
232 locator_set_t * rmt_ls, * lcl_ls;
233 ip_address_t _lcl, * lcl = &_lcl;
234 locator_t * l, * rmt = 0;
237 rmt_ls = pool_elt_at_index(lcm->locator_set_pool, rmt_map->locator_set_index);
238 lcl_ls = pool_elt_at_index(lcm->locator_set_pool, lcl_map->locator_set_index);
240 if (!rmt_ls || vec_len(rmt_ls->locator_indices) == 0)
247 /* find unvisited remote locator with best priority */
248 for (i = 0; i < vec_len(rmt_ls->locator_indices); i++)
250 if (0 != hash_get(checked, i))
253 li = vec_elt(rmt_ls->locator_indices, i);
254 l = pool_elt_at_index(lcm->locator_pool, li);
256 /* we don't support non-IP locators for now */
257 if (gid_address_type(&l->address) != GID_ADDR_IP_PREFIX)
260 if (l->priority < minp && l->priority >= limitp)
267 /* check if a local locator with a route to remote locator exists */
270 esi = ip_fib_get_egress_iface_for_dst (
271 lcm, &gid_address_ip(&rmt->address));
275 for (i = 0; i < vec_len(lcl_ls->locator_indices); i++)
277 li = vec_elt (lcl_ls->locator_indices, i);
278 locator_t * sl = pool_elt_at_index (lcm->locator_pool, li);
280 /* found local locator */
281 if (sl->sw_if_index == esi)
283 if (0 == ip_interface_get_first_ip_address (lcm,
285 gid_address_ip_version(&rmt->address), lcl))
288 ip_address_copy(rmt_loc, &gid_address_ip(&rmt->address));
289 ip_address_copy(lcl_loc, lcl);
294 /* skip this remote locator in next searches */
296 hash_set(checked, check_index, 1);
302 return (done == 2) ? 1 : 0;
306 dp_add_fwd_entry (lisp_cp_main_t* lcm, u32 src_map_index, u32 dst_map_index)
308 mapping_t * src_map, * dst_map;
310 uword * feip = 0, * tidp;
312 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, * a = &_a;
314 memset (a, 0, sizeof(*a));
316 /* remove entry if it already exists */
317 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
319 dp_del_fwd_entry (lcm, src_map_index, dst_map_index);
321 src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index);
322 dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index);
324 gid_address_copy (&a->deid, &dst_map->eid);
325 a->vni = gid_address_vni(&a->deid);
327 tidp = hash_get(lcm->table_id_by_vni, a->vni);
330 clib_warning("vni %d not associated to a vrf!", a->vni);
333 a->table_id = tidp[0];
335 /* insert data plane forwarding entry */
338 /* find best locator pair that 1) verifies LISP policy 2) are connected */
339 if (0 == get_locator_pair (lcm, src_map, dst_map, &a->slocator, &a->dlocator))
343 a->action = dst_map->action;
347 u8 ipver = ip_prefix_version(&gid_address_ippref(&a->deid));
348 a->decap_next_index = (ipver == IP4) ?
349 LISP_GPE_INPUT_NEXT_IP4_INPUT : LISP_GPE_INPUT_NEXT_IP6_INPUT;
351 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
353 /* add tunnel to fwd entry table XXX check return value from DP insertion */
354 pool_get (lcm->fwd_entry_pool, fe);
355 fe->dst_loc = a->dlocator;
356 fe->src_loc = a->slocator;
357 gid_address_copy (&fe->deid, &a->deid);
358 hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
359 fe - lcm->fwd_entry_pool);
363 * Add/remove mapping to/from map-cache. Overwriting not allowed.
366 vnet_lisp_map_cache_add_del (vnet_lisp_add_del_mapping_args_t * a,
367 u32 * map_index_result)
369 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
370 u32 mi, * map_indexp, map_index, i;
371 mapping_t * m, * old_map;
374 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->eid);
375 old_map = mi != ~0 ? pool_elt_at_index (lcm->mapping_pool, mi) : 0;
378 /* TODO check if overwriting and take appropriate actions */
379 if (mi != GID_LOOKUP_MISS && !gid_address_cmp (&old_map->eid,
382 clib_warning ("eid %U found in the eid-table", format_gid_address,
384 return VNET_API_ERROR_VALUE_EXIST;
387 pool_get(lcm->mapping_pool, m);
388 gid_address_copy (&m->eid, &a->eid);
389 m->locator_set_index = a->locator_set_index;
391 m->action = a->action;
394 map_index = m - lcm->mapping_pool;
395 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, map_index,
398 if (pool_is_free_index(lcm->locator_set_pool, a->locator_set_index))
400 clib_warning("Locator set with index %d doesn't exist",
401 a->locator_set_index);
402 return VNET_API_ERROR_INVALID_VALUE;
405 /* add eid to list of eids supported by locator-set */
406 vec_validate (lcm->locator_set_to_eids, a->locator_set_index);
407 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids,
408 a->locator_set_index);
409 vec_add1(eid_indexes[0], map_index);
414 vec_add1(lcm->local_mappings_indexes, map_index);
416 map_index_result[0] = map_index;
420 if (mi == GID_LOOKUP_MISS)
422 clib_warning("eid %U not found in the eid-table", format_gid_address,
424 return VNET_API_ERROR_INVALID_VALUE;
427 /* clear locator-set to eids binding */
428 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids,
429 a->locator_set_index);
430 for (i = 0; i < vec_len(eid_indexes[0]); i++)
432 map_indexp = vec_elt_at_index(eid_indexes[0], i);
433 if (map_indexp[0] == mi)
436 vec_del1(eid_indexes[0], i);
438 /* remove local mark if needed */
439 m = pool_elt_at_index(lcm->mapping_pool, mi);
443 for (k = 0; k < vec_len(lcm->local_mappings_indexes); k++)
445 lm_indexp = vec_elt_at_index(lcm->local_mappings_indexes, k);
446 if (lm_indexp[0] == mi)
449 vec_del1(lcm->local_mappings_indexes, k);
452 /* remove mapping from dictionary */
453 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, 0, 0);
454 gid_address_free (&m->eid);
455 pool_put_index (lcm->mapping_pool, mi);
462 * Add/update/delete mapping to/in/from map-cache.
465 vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a,
466 u32 * map_index_result)
471 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
473 if (vnet_lisp_enable_disable_status () == 0)
475 clib_warning ("LISP is disabled!");
476 return VNET_API_ERROR_LISP_DISABLED;
479 vni = gid_address_vni(&a->eid);
480 table_id = hash_get(lcm->table_id_by_vni, vni);
484 clib_warning ("vni %d not associated to a vrf!", vni);
485 return VNET_API_ERROR_INVALID_VALUE;
488 /* store/remove mapping from map-cache */
489 return vnet_lisp_map_cache_add_del (a, map_index_result);
492 static clib_error_t *
493 lisp_add_del_local_eid_command_fn (vlib_main_t * vm, unformat_input_t * input,
494 vlib_cli_command_t * cmd)
496 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
497 unformat_input_t _line_input, * line_input = &_line_input;
500 ip_prefix_t * prefp = &gid_address_ippref(&eid);
501 u8 * mac = gid_address_mac(&eid);
502 gid_address_t * eids = 0;
503 clib_error_t * error = 0;
504 u8 * locator_set_name = 0;
505 u32 locator_set_index = 0, map_index = 0;
507 vnet_lisp_add_del_mapping_args_t _a, * a = &_a;
511 memset (&eid, 0, sizeof (eid));
512 /* Get a line of input. */
513 if (! unformat_user (input, unformat_line_input, line_input))
516 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
518 if (unformat (line_input, "add"))
520 else if (unformat (line_input, "del"))
522 else if (unformat (line_input, "vni %d", &vni))
523 gid_address_vni (&eid) = vni;
524 else if (unformat (line_input, "eid %U", unformat_ip_prefix, prefp))
526 gid_address_type (&eid) = GID_ADDR_IP_PREFIX;
529 else if (unformat (line_input, "eid %U", unformat_mac_address, mac))
531 gid_address_type (&eid) = GID_ADDR_MAC;
534 else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name))
536 p = hash_get_mem(lcm->locator_set_index_by_name, locator_set_name);
539 error = clib_error_return(0, "locator-set %s doesn't exist",
543 locator_set_index = p[0];
547 error = unformat_parse_error(line_input);
551 /* XXX treat batch configuration */
555 a->locator_set_index = locator_set_index;
558 rv = vnet_lisp_add_del_local_mapping (a, &map_index);
561 error = clib_error_return(0, "failed to %s local mapping!",
562 is_add ? "add" : "delete");
566 if (locator_set_name)
567 vec_free (locator_set_name);
568 gid_address_free (&a->eid);
572 VLIB_CLI_COMMAND (lisp_add_del_local_eid_command) = {
573 .path = "lisp eid-table",
574 .short_help = "lisp eid-table add/del [vni <vni>] eid <eid> "
575 "locator-set <locator-set>",
576 .function = lisp_add_del_local_eid_command_fn,
580 vnet_lisp_eid_table_map (u32 vni, u32 vrf, u8 is_add)
582 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
583 uword * table_id, * vnip;
585 if (vnet_lisp_enable_disable_status () == 0)
587 clib_warning ("LISP is disabled!");
591 if (vni == 0 || vrf == 0)
593 clib_warning ("can't add/del default vni-vrf mapping!");
597 table_id = hash_get (lcm->table_id_by_vni, vni);
598 vnip = hash_get (lcm->vni_by_table_id, vrf);
602 if (table_id || vnip)
604 clib_warning ("vni %d or vrf %d already used in vrf/vni "
605 "mapping!", vni, vrf);
608 hash_set (lcm->table_id_by_vni, vni, vrf);
609 hash_set (lcm->vni_by_table_id, vrf, vni);
611 /* create dp iface */
612 dp_add_del_iface (lcm, vni, 1);
616 if (!table_id || !vnip)
618 clib_warning ("vni %d or vrf %d not used in any vrf/vni! "
619 "mapping!", vni, vrf);
622 hash_unset (lcm->table_id_by_vni, vni);
623 hash_unset (lcm->vni_by_table_id, vrf);
625 /* remove dp iface */
626 dp_add_del_iface (lcm, vni, 0);
631 static clib_error_t *
632 lisp_eid_table_map_command_fn (vlib_main_t * vm,
633 unformat_input_t * input,
634 vlib_cli_command_t * cmd)
637 u32 vni = 0, vrf = 0;
638 unformat_input_t _line_input, * line_input = &_line_input;
640 /* Get a line of input. */
641 if (! unformat_user (input, unformat_line_input, line_input))
644 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
646 if (unformat (line_input, "del"))
648 else if (unformat (line_input, "vni %d", &vni))
650 else if (unformat (line_input, "vrf %d", &vrf))
654 return unformat_parse_error (line_input);
657 vnet_lisp_eid_table_map (vni, vrf, is_add);
661 VLIB_CLI_COMMAND (lisp_eid_table_map_command) = {
662 .path = "lisp eid-table map",
663 .short_help = "lisp eid-table map [del] vni <vni> vrf <vrf>",
664 .function = lisp_eid_table_map_command_fn,
668 /* return 0 if the two locator sets are identical 1 otherwise */
670 compare_locators (lisp_cp_main_t *lcm, u32 * old_ls_indexes,
671 locator_t * new_locators)
674 locator_t * old_loc, * new_loc;
676 if (vec_len (old_ls_indexes) != vec_len(new_locators))
679 for (i = 0; i < vec_len(new_locators); i++)
681 old_li = vec_elt(old_ls_indexes, i);
682 old_loc = pool_elt_at_index(lcm->locator_pool, old_li);
684 new_loc = vec_elt_at_index(new_locators, i);
686 if (locator_cmp (old_loc, new_loc))
693 * Adds/removes/updates mapping. Does not program forwarding.
695 * @param eid end-host identifier
696 * @param rlocs vector of remote locators
697 * @param action action for negative map-reply
698 * @param is_add add mapping if non-zero, delete otherwise
699 * @param res_map_index the map-index that was created/updated/removed. It is
700 * set to ~0 if no action is taken.
701 * @return return code
704 vnet_lisp_add_del_mapping (gid_address_t * eid, locator_t * rlocs, u8 action,
705 u8 authoritative, u32 ttl, u8 is_add,
708 vnet_lisp_add_del_mapping_args_t _m_args, * m_args = &_m_args;
709 vnet_lisp_add_del_locator_set_args_t _ls_args, * ls_args = &_ls_args;
710 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
711 u32 mi, ls_index = 0, dst_map_index;
714 if (vnet_lisp_enable_disable_status() == 0)
716 clib_warning ("LISP is disabled!");
717 return VNET_API_ERROR_LISP_DISABLED;
721 res_map_index[0] = ~0;
723 memset (m_args, 0, sizeof (m_args[0]));
724 memset (ls_args, 0, sizeof (ls_args[0]));
726 ls_args->locators = rlocs;
728 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, eid);
729 old_map = ((u32) ~0 != mi) ? pool_elt_at_index(lcm->mapping_pool, mi) : 0;
733 /* overwrite: if mapping already exists, decide if locators should be
734 * updated and be done */
735 if (old_map && gid_address_cmp (&old_map->eid, eid) == 0)
737 locator_set_t * old_ls;
739 /* update mapping attributes */
740 old_map->action = action;
741 old_map->authoritative = authoritative;
744 old_ls = pool_elt_at_index(lcm->locator_set_pool,
745 old_map->locator_set_index);
746 if (compare_locators (lcm, old_ls->locator_indices,
749 /* set locator-set index to overwrite */
751 ls_args->index = old_map->locator_set_index;
752 vnet_lisp_add_del_locator_set (ls_args, 0);
754 res_map_index[0] = mi;
763 vnet_lisp_add_del_locator_set (ls_args, &ls_index);
766 gid_address_copy (&m_args->eid, eid);
768 m_args->action = action;
769 m_args->locator_set_index = ls_index;
770 vnet_lisp_map_cache_add_del (m_args, &dst_map_index);
773 res_map_index[0] = dst_map_index;
778 if (old_map == 0 || gid_address_cmp (&old_map->eid, eid) != 0)
780 clib_warning("cannot delete mapping for eid %U", format_gid_address,
786 gid_address_copy (&m_args->eid, eid);
787 m_args->locator_set_index = old_map->locator_set_index;
789 /* delete mapping associated from map-cache */
790 vnet_lisp_map_cache_add_del (m_args, 0);
793 ls_args->index = old_map->locator_set_index;
794 /* delete locator set */
795 vnet_lisp_add_del_locator_set (ls_args, 0);
797 /* return old mapping index */
799 res_map_index[0] = mi;
807 vnet_lisp_clear_all_remote_adjacencies (void)
810 u32 mi, * map_indices = 0, * map_indexp;
811 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
812 vnet_lisp_add_del_mapping_args_t _dm_args, * dm_args = &_dm_args;
813 vnet_lisp_add_del_locator_set_args_t _ls, * ls = &_ls;
815 pool_foreach_index (mi, lcm->mapping_pool,
817 vec_add1 (map_indices, mi);
820 vec_foreach (map_indexp, map_indices)
822 mapping_t * map = pool_elt_at_index (lcm->mapping_pool, map_indexp[0]);
825 dp_del_fwd_entry (lcm, 0, map_indexp[0]);
828 gid_address_copy (&dm_args->eid, &map->eid);
829 dm_args->locator_set_index = map->locator_set_index;
831 /* delete mapping associated to fwd entry */
832 vnet_lisp_map_cache_add_del (dm_args, 0);
836 ls->index = map->locator_set_index;
837 /* delete locator set */
838 rv = vnet_lisp_add_del_locator_set (ls, 0);
846 vec_free (map_indices);
851 * Adds adjacency or removes forwarding entry associated to remote mapping.
852 * Note that adjacencies are not stored, they only result in forwarding entries
856 lisp_add_del_adjacency (lisp_cp_main_t * lcm, gid_address_t * local_eid,
857 gid_address_t * remote_eid, u8 is_add)
859 u32 local_mi, remote_mi = ~0;
861 if (vnet_lisp_enable_disable_status () == 0)
863 clib_warning ("LISP is disabled!");
864 return VNET_API_ERROR_LISP_DISABLED;
867 remote_mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, remote_eid);
868 if (GID_LOOKUP_MISS == remote_mi)
870 clib_warning("Remote eid %U not found. Cannot add adjacency!",
871 format_gid_address, remote_eid);
878 /* TODO 1) check if src/dst 2) once we have src/dst working, use it in
881 /* check if source eid has an associated mapping. If pitr mode is on,
882 * just use the pitr's mapping */
883 local_mi = lcm->lisp_pitr ? lcm->pitr_map_index :
884 gid_dictionary_lookup (&lcm->mapping_index_by_gid, local_eid);
887 if (GID_LOOKUP_MISS == local_mi)
889 clib_warning("Local eid %U not found. Cannot add adjacency!",
890 format_gid_address, local_eid);
895 /* update forwarding */
896 dp_add_fwd_entry (lcm, local_mi, remote_mi);
899 dp_del_fwd_entry (lcm, 0, remote_mi);
905 vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a)
907 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
908 return lisp_add_del_adjacency(lcm, &a->seid, &a->deid, a->is_add);
912 * Handler for add/del remote mapping CLI.
914 * @param vm vlib context
915 * @param input input from user
917 * @return pointer to clib error structure
919 static clib_error_t *
920 lisp_add_del_remote_mapping_command_fn (vlib_main_t * vm,
921 unformat_input_t * input,
922 vlib_cli_command_t * cmd)
924 clib_error_t * error = 0;
925 unformat_input_t _line_input, * line_input = &_line_input;
926 u8 is_add = 1, del_all = 0;
927 locator_t rloc, * rlocs = 0, * curr_rloc = 0;
928 ip_prefix_t * eid_ippref;
930 u8 * dmac = gid_address_mac (&eid);
933 u32 vni, action = ~0, p, w;
936 /* Get a line of input. */
937 if (! unformat_user (input, unformat_line_input, line_input))
940 memset(&eid, 0, sizeof(eid));
941 memset(&rloc, 0, sizeof(rloc));
943 eid_ippref = &gid_address_ippref(&eid);
945 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
947 if (unformat (line_input, "del-all"))
949 else if (unformat (line_input, "del"))
951 else if (unformat (line_input, "add"))
953 else if (unformat (line_input, "eid %U",
954 unformat_ip_prefix, eid_ippref))
956 gid_address_type (&eid) = GID_ADDR_IP_PREFIX;
959 else if (unformat (line_input, "eid %U",
960 unformat_mac_address, dmac))
962 gid_address_type (&eid) = GID_ADDR_MAC;
965 else if (unformat (line_input, "vni %u", &vni))
967 gid_address_vni (&eid) = vni;
969 else if (unformat (line_input, "p %d w %d", &p, &w))
973 clib_warning ("No RLOC configured for setting priority/weight!");
976 curr_rloc->priority = p;
977 curr_rloc->weight = w;
979 else if (unformat (line_input, "rloc %U", unformat_ip_address,
982 vec_add1 (rlocs, rloc);
983 curr_rloc = &rlocs[vec_len (rlocs) - 1];
985 else if (unformat (line_input, "action %s", &s))
987 if (!strcmp ((char *)s, "no-action"))
988 action = ACTION_NONE;
989 if (!strcmp ((char *)s, "natively-forward"))
990 action = ACTION_NATIVELY_FORWARDED;
991 if (!strcmp ((char *)s, "send-map-request"))
992 action = ACTION_SEND_MAP_REQUEST;
993 else if (!strcmp ((char *)s, "drop"))
994 action = ACTION_DROP;
997 clib_warning ("invalid action: '%s'", s);
1003 clib_warning ("parse error");
1010 clib_warning ("missing eid!");
1018 if (is_add && (~0 == action)
1019 && 0 == vec_len (rlocs))
1021 clib_warning ("no action set for negative map-reply!");
1027 vnet_lisp_clear_all_remote_adjacencies ();
1031 /* TODO build src/dst with seid*/
1033 /* if it's a delete, clean forwarding */
1036 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1037 rv = lisp_add_del_adjacency (lcm, 0, &eid, /* is_add */ 0);
1044 /* add as static remote mapping, i.e., not authoritative and infinite
1046 rv = vnet_lisp_add_del_mapping (&eid, rlocs, action, 0, ~0, is_add, 0);
1049 clib_warning("failed to %s remote mapping!", is_add ? "add" : "delete");
1053 unformat_free (line_input);
1059 VLIB_CLI_COMMAND (lisp_add_del_remote_mapping_command) = {
1060 .path = "lisp remote-mapping",
1061 .short_help = "lisp remote-mapping add|del [del-all] vni <vni> "
1062 "eid <est-eid> [action <no-action|natively-forward|"
1063 "send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
1064 .function = lisp_add_del_remote_mapping_command_fn,
1068 * Handler for add/del adjacency CLI.
1070 static clib_error_t *
1071 lisp_add_del_adjacency_command_fn (vlib_main_t * vm, unformat_input_t * input,
1072 vlib_cli_command_t * cmd)
1074 clib_error_t * error = 0;
1075 unformat_input_t _line_input, * line_input = &_line_input;
1076 vnet_lisp_add_del_adjacency_args_t _a, * a = &_a;
1078 locator_t rloc, * rlocs = 0;
1079 ip_prefix_t * deid_ippref, * seid_ippref;
1080 gid_address_t seid, deid;
1081 u8 * dmac = gid_address_mac (&deid);
1082 u8 * smac = gid_address_mac (&seid);
1083 u8 deid_set = 0, seid_set = 0;
1085 u32 vni, action = ~0;
1088 /* Get a line of input. */
1089 if (! unformat_user (input, unformat_line_input, line_input))
1092 memset(&deid, 0, sizeof(deid));
1093 memset(&seid, 0, sizeof(seid));
1094 memset(&rloc, 0, sizeof(rloc));
1096 seid_ippref = &gid_address_ippref(&seid);
1097 deid_ippref = &gid_address_ippref(&deid);
1099 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1101 if (unformat (line_input, "del"))
1103 else if (unformat (line_input, "add"))
1105 else if (unformat (line_input, "deid %U",
1106 unformat_ip_prefix, deid_ippref))
1108 gid_address_type (&deid) = GID_ADDR_IP_PREFIX;
1111 else if (unformat (line_input, "deid %U",
1112 unformat_mac_address, dmac))
1114 gid_address_type (&deid) = GID_ADDR_MAC;
1117 else if (unformat (line_input, "vni %u", &vni))
1119 gid_address_vni (&seid) = vni;
1120 gid_address_vni (&deid) = vni;
1122 else if (unformat (line_input, "seid %U",
1123 unformat_ip_prefix, seid_ippref))
1125 gid_address_type (&seid) = GID_ADDR_IP_PREFIX;
1128 else if (unformat (line_input, "seid %U",
1129 unformat_mac_address, smac))
1131 gid_address_type (&seid) = GID_ADDR_MAC;
1136 clib_warning ("parse error");
1143 clib_warning ("missing deid!");
1147 if (GID_ADDR_IP_PREFIX == gid_address_type (&deid))
1149 /* if seid not set, make sure the ip version is the same as that
1150 * of the deid. This ensures the seid to be configured will be
1151 * either 0/0 or ::/0 */
1153 ip_prefix_version(seid_ippref) = ip_prefix_version(deid_ippref);
1156 (ip_prefix_version (deid_ippref)
1157 != ip_prefix_version(seid_ippref)))
1159 clib_warning ("source and destination EIDs are not"
1160 " in the same IP family!");
1165 if (is_add && (~0 == action)
1166 && 0 == vec_len (rlocs))
1168 clib_warning ("no action set for negative map-reply!");
1172 memset(a, 0, sizeof(a[0]));
1173 gid_address_copy (&a->seid, &deid);
1174 gid_address_copy (&a->deid, &seid);
1177 rv = vnet_lisp_add_del_adjacency (a);
1180 clib_warning("failed to %s adjacency!", is_add ? "add" : "delete");
1183 unformat_free (line_input);
1189 VLIB_CLI_COMMAND (lisp_add_del_adjacency_command) = {
1190 .path = "lisp adjacency",
1191 .short_help = "lisp adjacency add|del vni <vni>"
1192 "deid <dest-eid> seid <src-eid> [action <no-action|natively-forward|"
1193 "send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
1194 .function = lisp_add_del_adjacency_command_fn,
1198 static clib_error_t *
1199 lisp_show_map_resolvers_command_fn (vlib_main_t * vm,
1200 unformat_input_t * input,
1201 vlib_cli_command_t * cmd)
1203 ip_address_t * addr;
1204 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1206 vec_foreach (addr, lcm->map_resolvers)
1208 vlib_cli_output (vm, "%U", format_ip_address, addr);
1213 VLIB_CLI_COMMAND (lisp_show_map_resolvers_command) = {
1214 .path = "show lisp map-resolvers",
1215 .short_help = "show lisp map-resolvers",
1216 .function = lisp_show_map_resolvers_command_fn,
1220 vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add)
1222 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1223 u32 locator_set_index = ~0;
1227 if (vnet_lisp_enable_disable_status () == 0)
1229 clib_warning ("LISP is disabled!");
1230 return VNET_API_ERROR_LISP_DISABLED;
1233 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
1236 clib_warning ("locator-set %v doesn't exist", locator_set_name);
1239 locator_set_index = p[0];
1243 pool_get (lcm->mapping_pool, m);
1244 m->locator_set_index = locator_set_index;
1246 lcm->pitr_map_index = m - lcm->mapping_pool;
1248 /* enable pitr mode */
1253 /* remove pitr mapping */
1254 pool_put_index (lcm->mapping_pool, lcm->pitr_map_index);
1256 /* disable pitr mode */
1262 static clib_error_t *
1263 lisp_pitr_set_locator_set_command_fn (vlib_main_t * vm,
1264 unformat_input_t * input,
1265 vlib_cli_command_t * cmd)
1267 u8 locator_name_set = 0;
1268 u8 * locator_set_name = 0;
1270 unformat_input_t _line_input, * line_input = &_line_input;
1271 clib_error_t * error = 0;
1274 /* Get a line of input. */
1275 if (! unformat_user (input, unformat_line_input, line_input))
1278 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1280 if (unformat (line_input, "ls %_%v%_", &locator_set_name))
1281 locator_name_set = 1;
1282 else if (unformat (line_input, "disable"))
1285 return clib_error_return (0, "parse error");
1288 if (!locator_name_set)
1290 clib_warning ("No locator set specified!");
1293 rv = vnet_lisp_pitr_set_locator_set (locator_set_name, is_add);
1296 error = clib_error_return(0, "failed to %s pitr!",
1297 is_add ? "add" : "delete");
1301 if (locator_set_name)
1302 vec_free (locator_set_name);
1306 VLIB_CLI_COMMAND (lisp_pitr_set_locator_set_command) = {
1307 .path = "lisp pitr",
1308 .short_help = "lisp pitr [disable] ls <locator-set-name>",
1309 .function = lisp_pitr_set_locator_set_command_fn,
1312 static clib_error_t *
1313 lisp_show_pitr_command_fn (vlib_main_t * vm,
1314 unformat_input_t * input,
1315 vlib_cli_command_t * cmd)
1317 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1322 vlib_cli_output (vm, "%=20s%=16s",
1323 "pitr", lcm->lisp_pitr ? "locator-set" : "");
1325 if (!lcm->lisp_pitr) {
1326 vlib_cli_output (vm, "%=20s", "disable");
1330 if (~0 == lcm->pitr_map_index) {
1331 tmp_str = format(0, "N/A");
1333 m = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
1334 if (~0 != m->locator_set_index) {
1335 ls = pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index);
1336 tmp_str = format(0, "%s", ls->name);
1338 tmp_str = format(0, "N/A");
1341 vec_add1(tmp_str, 0);
1343 vlib_cli_output (vm, "%=20s%=16s",
1351 VLIB_CLI_COMMAND (lisp_show_pitr_command) = {
1352 .path = "show lisp pitr",
1353 .short_help = "Show pitr",
1354 .function = lisp_show_pitr_command_fn,
1358 format_eid_entry (u8 * s, va_list * args)
1360 vnet_main_t * vnm = va_arg (*args, vnet_main_t *);
1361 lisp_cp_main_t * lcm = va_arg (*args, lisp_cp_main_t *);
1362 gid_address_t * gid = va_arg (*args, gid_address_t *);
1363 locator_set_t * ls = va_arg (*args, locator_set_t *);
1368 u8 * type = ls->local ? format(0, "local(%s)", ls->name)
1369 : format(0, "remote");
1371 if (vec_len (ls->locator_indices) == 0)
1373 s = format (s, "%-35U%-20s", format_gid_address, gid, type);
1377 vec_foreach (loc_index, ls->locator_indices)
1379 locator_t * l = pool_elt_at_index (lcm->locator_pool, loc_index[0]);
1381 loc = format (0, "%U", format_vnet_sw_if_index_name, vnm,
1384 loc = format (0, "%U", format_ip_address,
1385 &gid_address_ip (&l->address));
1389 s = format (s, "%-35U%-20s%-v\n", format_gid_address,
1394 s = format (s, "%55s%v\n", "", loc);
1400 static clib_error_t *
1401 lisp_show_eid_table_command_fn (vlib_main_t * vm,
1402 unformat_input_t * input,
1403 vlib_cli_command_t * cmd)
1405 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1407 unformat_input_t _line_input, * line_input = &_line_input;
1412 memset (&eid, 0, sizeof(eid));
1414 /* Get a line of input. */
1415 if (!unformat_user (input, unformat_line_input, line_input))
1418 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1420 if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
1423 return clib_error_return (0, "parse error: '%U'",
1424 format_unformat_error, line_input);
1427 vlib_cli_output (vm, "%-35s%-20s%-s", "EID", "type", "locators");
1431 pool_foreach (mapit, lcm->mapping_pool,
1433 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1434 mapit->locator_set_index);
1435 vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
1436 lcm, &mapit->eid, ls);
1441 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &eid);
1445 mapit = pool_elt_at_index (lcm->mapping_pool, mi);
1446 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1447 mapit->locator_set_index);
1448 vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
1449 lcm, &mapit->eid, ls);
1455 VLIB_CLI_COMMAND (lisp_cp_show_eid_table_command) = {
1456 .path = "show lisp eid-table",
1457 .short_help = "Shows EID table",
1458 .function = lisp_show_eid_table_command_fn,
1461 /* cleans locator to locator-set data and removes locators not part of
1462 * any locator-set */
1464 clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi)
1466 u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes, *to_be_deleted = 0;
1467 locator_set_t * ls = pool_elt_at_index(lcm->locator_set_pool, lsi);
1468 for (i = 0; i < vec_len(ls->locator_indices); i++)
1470 loc_indexp = vec_elt_at_index(ls->locator_indices, i);
1471 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1473 for (j = 0; j < vec_len(ls_indexes[0]); j++)
1475 ls_indexp = vec_elt_at_index(ls_indexes[0], j);
1476 if (ls_indexp[0] == lsi)
1480 /* delete index for removed locator-set*/
1481 vec_del1(ls_indexes[0], j);
1483 /* delete locator if it's part of no locator-set */
1484 if (vec_len (ls_indexes[0]) == 0)
1486 pool_put_index (lcm->locator_pool, loc_indexp[0]);
1487 vec_add1 (to_be_deleted, i);
1493 for (i = 0; i < vec_len (to_be_deleted); i++)
1495 loc_indexp = vec_elt_at_index (to_be_deleted, i);
1496 vec_del1 (ls->locator_indices, loc_indexp[0]);
1498 vec_free (to_be_deleted);
1502 static inline uword *
1503 get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p)
1505 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1510 /* find locator-set */
1513 p = hash_get_mem(lcm->locator_set_index_by_name, a->name);
1524 is_locator_in_locator_set (lisp_cp_main_t * lcm, locator_set_t * ls,
1531 ASSERT(loc != NULL);
1533 vec_foreach(locit, ls->locator_indices)
1535 itloc = pool_elt_at_index(lcm->locator_pool, locit[0]);
1536 if ((ls->local && itloc->sw_if_index == loc->sw_if_index) ||
1537 (!ls->local && !gid_address_cmp(&itloc->address, &loc->address)))
1539 clib_warning("Duplicate locator");
1540 return VNET_API_ERROR_VALUE_EXIST;
1548 remove_locator_from_locator_set (locator_set_t * ls, u32 * locit, u32 ls_index,
1551 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1552 u32 ** ls_indexes = NULL;
1555 ASSERT(locit != NULL);
1557 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1559 pool_put_index(lcm->locator_pool, locit[0]);
1560 vec_del1(ls->locator_indices, loc_id);
1561 vec_del1(ls_indexes[0], ls_index);
1565 vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a,
1566 locator_set_t * ls, u32 * ls_result)
1568 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1569 locator_t * loc = NULL, *itloc = NULL;
1570 uword _p = (u32)~0, * p = &_p;
1571 u32 loc_index = ~0, ls_index = ~0, * locit = NULL, ** ls_indexes = NULL;
1577 if (vnet_lisp_enable_disable_status () == 0)
1579 clib_warning ("LISP is disabled!");
1580 return VNET_API_ERROR_LISP_DISABLED;
1583 p = get_locator_set_index(a, p);
1586 clib_warning("locator-set %v doesn't exist", a->name);
1587 return VNET_API_ERROR_INVALID_ARGUMENT;
1592 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1595 clib_warning("locator-set %d to be overwritten doesn't exist!",
1597 return VNET_API_ERROR_INVALID_ARGUMENT;
1605 ls_result[0] = p[0];
1607 /* allocate locators */
1608 vec_foreach (itloc, a->locators)
1610 ret = is_locator_in_locator_set(lcm, ls, itloc);
1616 pool_get(lcm->locator_pool, loc);
1618 loc_index = loc - lcm->locator_pool;
1620 vec_add1(ls->locator_indices, loc_index);
1622 vec_validate (lcm->locator_to_locator_sets, loc_index);
1623 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1625 vec_add1(ls_indexes[0], ls_index);
1632 itloc = a->locators;
1634 vec_foreach (locit, ls->locator_indices)
1636 loc = pool_elt_at_index(lcm->locator_pool, locit[0]);
1638 if (loc->local && loc->sw_if_index == itloc->sw_if_index)
1640 remove_locator_from_locator_set(ls, locit,
1643 if (0 == loc->local &&
1644 !gid_address_cmp(&loc->address, &itloc->address))
1646 remove_locator_from_locator_set(ls, locit,
1658 vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
1661 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1663 uword _p = (u32)~0, * p = &_p;
1668 if (vnet_lisp_enable_disable_status () == 0)
1670 clib_warning ("LISP is disabled!");
1671 return VNET_API_ERROR_LISP_DISABLED;
1676 p = get_locator_set_index(a, p);
1679 if (p && p[0] != (u32)~0)
1681 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1684 clib_warning("locator-set %d to be overwritten doesn't exist!",
1689 /* clean locator to locator-set vectors and remove locators if
1690 * they're not part of another locator-set */
1691 clean_locator_to_locator_set (lcm, p[0]);
1693 /* remove locator indices from locator set */
1694 vec_free(ls->locator_indices);
1699 ls_result[0] = p[0];
1701 /* new locator-set */
1704 pool_get(lcm->locator_set_pool, ls);
1705 memset(ls, 0, sizeof(*ls));
1706 ls_index = ls - lcm->locator_set_pool;
1710 ls->name = vec_dup(a->name);
1712 if (!lcm->locator_set_index_by_name)
1713 lcm->locator_set_index_by_name = hash_create_vec(
1714 /* size */0, sizeof(ls->name[0]), sizeof(uword));
1715 hash_set_mem(lcm->locator_set_index_by_name, ls->name, ls_index);
1717 /* mark as local locator-set */
1718 vec_add1(lcm->local_locator_set_indexes, ls_index);
1720 ls->local = a->local;
1722 ls_result[0] = ls_index;
1725 ret = vnet_lisp_add_del_locator(a, ls, NULL);
1733 p = get_locator_set_index(a, p);
1736 clib_warning("locator-set %v doesn't exists", a->name);
1740 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1743 clib_warning("locator-set with index %d doesn't exists", p[0]);
1747 if (lcm->mreq_itr_rlocs == p[0])
1749 clib_warning ("Can't delete the locator-set used to constrain "
1750 "the itr-rlocs in map-requests!");
1754 if (vec_len(lcm->locator_set_to_eids) != 0)
1756 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, p[0]);
1757 if (vec_len(eid_indexes[0]) != 0)
1759 clib_warning ("Can't delete a locator that supports a mapping!");
1764 /* clean locator to locator-sets data */
1765 clean_locator_to_locator_set (lcm, p[0]);
1771 vec_foreach_index(it, lcm->local_locator_set_indexes)
1773 lsi = vec_elt(lcm->local_locator_set_indexes, it);
1776 vec_del1(lcm->local_locator_set_indexes, it);
1780 hash_unset_mem(lcm->locator_set_index_by_name, ls->name);
1783 vec_free(ls->locator_indices);
1784 pool_put(lcm->locator_set_pool, ls);
1790 vnet_lisp_enable_disable (u8 is_enable)
1793 clib_error_t * error = 0;
1794 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1795 vnet_lisp_gpe_enable_disable_args_t _a, * a = &_a;
1797 a->is_en = is_enable;
1798 error = vnet_lisp_gpe_enable_disable (a);
1801 return clib_error_return (0, "failed to %s data-plane!",
1802 a->is_en ? "enable" : "disable");
1807 /* enable all ifaces */
1808 hash_foreach(vni, table_id, lcm->table_id_by_vni, ({
1809 dp_add_del_iface(lcm, vni, 1);
1814 /* clear interface table */
1815 hash_free(lcm->dp_intf_by_vni);
1816 hash_free(lcm->fwd_entry_by_mapping_index);
1817 pool_free(lcm->fwd_entry_pool);
1820 /* update global flag */
1821 lcm->is_enabled = is_enable;
1826 static clib_error_t *
1827 lisp_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input,
1828 vlib_cli_command_t * cmd)
1830 unformat_input_t _line_input, * line_input = &_line_input;
1834 /* Get a line of input. */
1835 if (! unformat_user (input, unformat_line_input, line_input))
1838 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1840 if (unformat (line_input, "enable"))
1845 else if (unformat (line_input, "disable"))
1849 return clib_error_return (0, "parse error: '%U'",
1850 format_unformat_error, line_input);
1855 return clib_error_return (0, "state not set");
1857 return vnet_lisp_enable_disable (is_enabled);
1860 VLIB_CLI_COMMAND (lisp_cp_enable_disable_command) = {
1862 .short_help = "lisp [enable|disable]",
1863 .function = lisp_enable_disable_command_fn,
1867 vnet_lisp_enable_disable_status (void)
1869 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1870 return lcm->is_enabled;
1874 format_lisp_status (u8 * s, va_list * args)
1876 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1877 return format (s, "%s", lcm->is_enabled ? "enabled" : "disabled");
1880 static clib_error_t *
1881 lisp_show_status_command_fn (vlib_main_t * vm, unformat_input_t * input,
1882 vlib_cli_command_t * cmd)
1885 msg = format (msg, "feature: %U\ngpe: %U\n",
1886 format_lisp_status, format_vnet_lisp_gpe_status);
1887 vlib_cli_output (vm, "%v", msg);
1892 VLIB_CLI_COMMAND (lisp_show_status_command) = {
1893 .path = "show lisp status",
1894 .short_help = "show lisp status",
1895 .function = lisp_show_status_command_fn,
1898 static clib_error_t *
1899 lisp_show_eid_table_map_command_fn (vlib_main_t * vm, unformat_input_t * input,
1900 vlib_cli_command_t * cmd)
1903 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1905 vlib_cli_output (vm, "%=10s%=10s", "VNI", "VRF");
1906 hash_foreach_pair (p, lcm->table_id_by_vni,
1908 vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
1913 VLIB_CLI_COMMAND (lisp_show_eid_table_map_command) = {
1914 .path = "show lisp eid-table map",
1915 .short_help = "show lisp eid-table vni to vrf mappings",
1916 .function = lisp_show_eid_table_map_command_fn,
1919 static clib_error_t *
1920 lisp_add_del_locator_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
1921 vlib_cli_command_t * cmd)
1923 lisp_gpe_main_t * lgm = &lisp_gpe_main;
1924 vnet_main_t * vnm = lgm->vnet_main;
1925 unformat_input_t _line_input, * line_input = &_line_input;
1927 clib_error_t * error = 0;
1928 u8 * locator_set_name = 0;
1929 locator_t locator, * locators = 0;
1930 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
1934 memset(&locator, 0, sizeof(locator));
1935 memset(a, 0, sizeof(a[0]));
1937 /* Get a line of input. */
1938 if (! unformat_user (input, unformat_line_input, line_input))
1941 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1943 if (unformat (line_input, "add %_%v%_", &locator_set_name))
1945 else if (unformat (line_input, "del %_%v%_", &locator_set_name))
1947 else if (unformat (line_input, "iface %U p %d w %d",
1948 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
1949 &locator.priority, &locator.weight))
1952 vec_add1(locators, locator);
1956 error = unformat_parse_error(line_input);
1961 a->name = locator_set_name;
1962 a->locators = locators;
1966 rv = vnet_lisp_add_del_locator_set(a, &ls_index);
1969 error = clib_error_return(0, "failed to %s locator-set!",
1970 is_add ? "add" : "delete");
1975 if (locator_set_name)
1976 vec_free (locator_set_name);
1980 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_set_command) = {
1981 .path = "lisp locator-set",
1982 .short_help = "lisp locator-set add/del <name> [iface <iface-name> "
1983 "p <priority> w <weight>]",
1984 .function = lisp_add_del_locator_set_command_fn,
1987 static clib_error_t *
1988 lisp_add_del_locator_in_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
1989 vlib_cli_command_t * cmd)
1991 lisp_gpe_main_t * lgm = &lisp_gpe_main;
1992 vnet_main_t * vnm = lgm->vnet_main;
1993 unformat_input_t _line_input, * line_input = &_line_input;
1995 clib_error_t * error = 0;
1996 u8 * locator_set_name = 0;
1997 u8 locator_set_name_set = 0;
1998 locator_t locator, * locators = 0;
1999 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
2002 memset(&locator, 0, sizeof(locator));
2003 memset(a, 0, sizeof(a[0]));
2005 /* Get a line of input. */
2006 if (! unformat_user (input, unformat_line_input, line_input))
2009 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2011 if (unformat (line_input, "add"))
2013 else if (unformat (line_input, "del"))
2015 else if (unformat(line_input, "locator-set %_%v%_", &locator_set_name))
2016 locator_set_name_set = 1;
2017 else if (unformat (line_input, "iface %U p %d w %d",
2018 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
2019 &locator.priority, &locator.weight))
2022 vec_add1(locators, locator);
2026 error = unformat_parse_error(line_input);
2031 if (!locator_set_name_set)
2033 error = clib_error_return(0, "locator_set name not set!");
2037 a->name = locator_set_name;
2038 a->locators = locators;
2042 vnet_lisp_add_del_locator(a, 0, &ls_index);
2046 vec_free (locator_set_name);
2050 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_in_set_command) = {
2051 .path = "lisp locator",
2052 .short_help = "lisp locator add/del locator-set <name> iface <iface-name> "
2053 "p <priority> w <weight>",
2054 .function = lisp_add_del_locator_in_set_command_fn,
2057 static clib_error_t *
2058 lisp_cp_show_locator_sets_command_fn (vlib_main_t * vm,
2059 unformat_input_t * input,
2060 vlib_cli_command_t * cmd)
2062 locator_set_t * lsit;
2065 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2067 vlib_cli_output (vm, "%=20s%=16s%=16s%=16s", "Locator-set", "Locator",
2068 "Priority", "Weight");
2069 pool_foreach (lsit, lcm->locator_set_pool,
2075 msg = format (msg, "%=16v", lsit->name);
2079 msg = format (msg, "%=16s", "remote");
2081 vec_foreach (locit, lsit->locator_indices)
2085 msg = format (msg, "%16s", " ");
2087 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
2089 msg = format (msg, "%16d%16d%16d\n", loc->sw_if_index, loc->priority,
2092 msg = format (msg, "%16U%16d%16d\n", format_ip_address,
2093 &gid_address_ip(&loc->address), loc->priority,
2097 vlib_cli_output (vm, "%v", msg);
2103 VLIB_CLI_COMMAND (lisp_cp_show_locator_sets_command) = {
2104 .path = "show lisp locator-set",
2105 .short_help = "Shows locator-sets",
2106 .function = lisp_cp_show_locator_sets_command_fn,
2110 vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
2112 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2113 ip_address_t * addr;
2116 if (vnet_lisp_enable_disable_status () == 0)
2118 clib_warning ("LISP is disabled!");
2119 return VNET_API_ERROR_LISP_DISABLED;
2124 vec_foreach(addr, lcm->map_resolvers)
2126 if (!ip_address_cmp (addr, &a->address))
2128 clib_warning("map-resolver %U already exists!", format_ip_address,
2133 vec_add1(lcm->map_resolvers, a->address);
2137 for (i = 0; i < vec_len(lcm->map_resolvers); i++)
2139 addr = vec_elt_at_index(lcm->map_resolvers, i);
2140 if (!ip_address_cmp (addr, &a->address))
2142 vec_delete(lcm->map_resolvers, 1, i);
2150 static clib_error_t *
2151 lisp_add_del_map_resolver_command_fn (vlib_main_t * vm,
2152 unformat_input_t * input,
2153 vlib_cli_command_t * cmd)
2155 unformat_input_t _line_input, * line_input = &_line_input;
2156 u8 is_add = 1, addr_set = 0;
2157 ip_address_t ip_addr;
2158 clib_error_t * error = 0;
2160 vnet_lisp_add_del_map_resolver_args_t _a, * a = &_a;
2162 /* Get a line of input. */
2163 if (! unformat_user (input, unformat_line_input, line_input))
2166 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2168 if (unformat (line_input, "add"))
2170 else if (unformat (line_input, "del"))
2172 else if (unformat (line_input, "%U", unformat_ip_address, &ip_addr))
2176 error = unformat_parse_error(line_input);
2183 error = clib_error_return(0, "Map-resolver address must be set!");
2188 a->address = ip_addr;
2189 rv = vnet_lisp_add_del_map_resolver (a);
2192 error = clib_error_return(0, "failed to %s map-resolver!",
2193 is_add ? "add" : "delete");
2200 VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = {
2201 .path = "lisp map-resolver",
2202 .short_help = "lisp map-resolver add/del <ip_address>",
2203 .function = lisp_add_del_map_resolver_command_fn,
2207 vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a)
2209 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2212 if (vnet_lisp_enable_disable_status () == 0)
2214 clib_warning("LISP is disabled!");
2215 return VNET_API_ERROR_LISP_DISABLED;
2220 p = hash_get_mem(lcm->locator_set_index_by_name, a->locator_set_name);
2223 clib_warning("locator-set %v doesn't exist", a->locator_set_name);
2224 return VNET_API_ERROR_INVALID_ARGUMENT;
2227 lcm->mreq_itr_rlocs = p[0];
2231 lcm->mreq_itr_rlocs = ~0;
2237 static clib_error_t *
2238 lisp_add_del_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2239 unformat_input_t * input,
2240 vlib_cli_command_t * cmd)
2242 unformat_input_t _line_input, * line_input = &_line_input;
2244 u8 * locator_set_name = 0;
2245 clib_error_t * error = 0;
2247 vnet_lisp_add_del_mreq_itr_rloc_args_t _a, * a = &_a;
2249 /* Get a line of input. */
2250 if (! unformat_user (input, unformat_line_input, line_input))
2253 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2255 if (unformat (line_input, "del"))
2257 else if (unformat (line_input, "add %s", &locator_set_name))
2261 error = unformat_parse_error(line_input);
2267 a->locator_set_name = locator_set_name;
2268 rv = vnet_lisp_add_del_mreq_itr_rlocs (a);
2271 error = clib_error_return(0, "failed to %s map-request itr-rlocs!",
2272 is_add ? "add" : "delete");
2275 vec_free(locator_set_name);
2282 VLIB_CLI_COMMAND (lisp_add_del_map_request_command) = {
2283 .path = "lisp map-request itr-rlocs",
2284 .short_help = "lisp map-request itr-rlocs add/del <locator_set_name>",
2285 .function = lisp_add_del_mreq_itr_rlocs_command_fn,
2288 static clib_error_t *
2289 lisp_show_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2290 unformat_input_t * input,
2291 vlib_cli_command_t * cmd)
2293 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2294 locator_set_t * loc_set;
2296 vlib_cli_output (vm, "%=20s", "itr-rlocs");
2298 if (~0 == lcm->mreq_itr_rlocs)
2303 loc_set = pool_elt_at_index (lcm->locator_set_pool, lcm->mreq_itr_rlocs);
2305 vlib_cli_output (vm, "%=20s", loc_set->name);
2310 VLIB_CLI_COMMAND (lisp_show_map_request_command) = {
2311 .path = "show lisp map-request itr-rlocs",
2312 .short_help = "Shows map-request itr-rlocs",
2313 .function = lisp_show_mreq_itr_rlocs_command_fn,
2316 /* Statistics (not really errors) */
2317 #define foreach_lisp_cp_lookup_error \
2319 _(MAP_REQUESTS_SENT, "map-request sent")
2321 static char * lisp_cp_lookup_error_strings[] = {
2322 #define _(sym,string) string,
2323 foreach_lisp_cp_lookup_error
2329 #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
2330 foreach_lisp_cp_lookup_error
2332 LISP_CP_LOOKUP_N_ERROR,
2333 } lisp_cp_lookup_error_t;
2337 LISP_CP_LOOKUP_NEXT_DROP,
2338 LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
2339 LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
2340 LISP_CP_LOOKUP_N_NEXT,
2341 } lisp_cp_lookup_next_t;
2345 gid_address_t dst_eid;
2346 ip_address_t map_resolver_ip;
2347 } lisp_cp_lookup_trace_t;
2350 format_lisp_cp_lookup_trace (u8 * s, va_list * args)
2352 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2353 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2354 lisp_cp_lookup_trace_t * t = va_arg (*args, lisp_cp_lookup_trace_t *);
2356 s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
2357 format_ip_address, &t->map_resolver_ip, format_gid_address,
2363 get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip,
2364 ip_address_t * sloc)
2366 ip_address_t * mrit;
2368 if (vec_len(lcm->map_resolvers) == 0)
2370 clib_warning("No map-resolver configured");
2374 /* find the first mr ip we have a route to and the ip of the
2375 * iface that has a route to it */
2376 vec_foreach(mrit, lcm->map_resolvers)
2378 if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, mrit, sloc)) {
2379 ip_address_copy(mr_ip, mrit);
2384 clib_warning("Can't find map-resolver and local interface ip!");
2388 static gid_address_t *
2389 build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
2395 ip_interface_address_t * ia = 0;
2396 gid_address_t gid_data, * gid = &gid_data;
2397 gid_address_t * rlocs = 0;
2398 ip_prefix_t * ippref = &gid_address_ippref (gid);
2399 ip_address_t * rloc = &ip_prefix_addr (ippref);
2401 memset (gid, 0, sizeof (gid[0]));
2402 gid_address_type (gid) = GID_ADDR_IP_PREFIX;
2403 for (i = 0; i < vec_len(loc_set->locator_indices); i++)
2405 loc_indexp = vec_elt_at_index(loc_set->locator_indices, i);
2406 loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
2408 /* Add ipv4 locators first TODO sort them */
2409 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
2410 loc->sw_if_index, 1 /* unnumbered */,
2412 addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
2413 ip_address_set (rloc, addr, IP4);
2414 ip_prefix_len (ippref) = 32;
2415 ip_prefix_normalize (ippref);
2416 vec_add1 (rlocs, gid[0]);
2419 /* Add ipv6 locators */
2420 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
2421 loc->sw_if_index, 1 /* unnumbered */,
2423 addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
2424 ip_address_set (rloc, addr, IP6);
2425 ip_prefix_len (ippref) = 128;
2426 ip_prefix_normalize (ippref);
2427 vec_add1 (rlocs, gid[0]);
2433 static vlib_buffer_t *
2434 build_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
2435 gid_address_t * seid, gid_address_t * deid,
2436 locator_set_t * loc_set, ip_address_t * mr_ip,
2437 ip_address_t * sloc, u8 is_smr_invoked,
2438 u64 *nonce_res, u32 * bi_res)
2442 gid_address_t * rlocs = 0;
2444 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
2446 clib_warning ("Can't allocate buffer for Map-Request!");
2450 b = vlib_get_buffer (vm, bi);
2452 /* leave some space for the encap headers */
2453 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
2456 rlocs = build_itr_rloc_list (lcm, loc_set);
2459 lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, nonce_res);
2461 /* push ecm: udp-ip-lisp */
2462 lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid);
2464 /* push outer ip header */
2465 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc,
2475 send_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
2476 gid_address_t * seid, gid_address_t * deid,
2479 u32 next_index, bi = 0, * to_next, map_index;
2483 locator_set_t * loc_set;
2485 pending_map_request_t * pmr;
2486 ip_address_t mr_ip, sloc;
2489 /* get locator-set for seid */
2490 if (!lcm->lisp_pitr)
2492 map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
2493 if (map_index == ~0)
2495 clib_warning("No local mapping found in eid-table for %U!",
2496 format_gid_address, seid);
2500 map = pool_elt_at_index (lcm->mapping_pool, map_index);
2504 clib_warning("Mapping found for src eid %U is not marked as local!",
2505 format_gid_address, seid);
2508 ls_index = map->locator_set_index;
2512 map_index = lcm->pitr_map_index;
2513 map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
2514 ls_index = map->locator_set_index;
2517 /* overwrite locator set if map-request itr-rlocs configured */
2518 if (~0 != lcm->mreq_itr_rlocs)
2520 ls_index = lcm->mreq_itr_rlocs;
2523 loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index);
2525 /* get local iface ip to use in map-request */
2526 if (0 == get_mr_and_local_iface_ip (lcm, &mr_ip, &sloc))
2529 /* build the encapsulated map request */
2530 b = build_encapsulated_map_request (vm, lcm, seid, deid, loc_set, &mr_ip,
2531 &sloc, is_smr_invoked, &nonce, &bi);
2536 /* set fib index to default and lookup node */
2537 vnet_buffer(b)->sw_if_index[VLIB_TX] = 0;
2538 next_index = (ip_addr_version(&mr_ip) == IP4) ?
2539 ip4_lookup_node.index : ip6_lookup_node.index;
2541 f = vlib_get_frame_to_node (vm, next_index);
2543 /* Enqueue the packet */
2544 to_next = vlib_frame_vector_args (f);
2547 vlib_put_frame_to_node (vm, next_index, f);
2549 /* add map-request to pending requests table */
2550 pool_get(lcm->pending_map_requests_pool, pmr);
2551 gid_address_copy (&pmr->src, seid);
2552 gid_address_copy (&pmr->dst, deid);
2553 hash_set(lcm->pending_map_requests_by_nonce, nonce,
2554 pmr - lcm->pending_map_requests_pool);
2558 get_src_and_dst (void *hdr, ip_address_t * src, ip_address_t *dst)
2560 ip4_header_t * ip4 = hdr;
2563 if ((ip4->ip_version_and_header_length & 0xF0) == 0x40)
2565 ip_address_set(src, &ip4->src_address, IP4);
2566 ip_address_set(dst, &ip4->dst_address, IP4);
2571 ip_address_set(src, &ip6->src_address, IP6);
2572 ip_address_set(dst, &ip6->dst_address, IP6);
2577 lisp_get_vni_from_buffer (vlib_buffer_t * b, u8 version)
2580 u32 vni = ~0, table_id = ~0, fib_index;
2581 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
2586 ip4_main_t * im4 = &ip4_main;
2587 fib_index = vec_elt (im4->fib_index_by_sw_if_index,
2588 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2589 fib = find_ip4_fib_by_table_index_or_id (im4, fib_index,
2590 IP4_ROUTE_FLAG_FIB_INDEX);
2591 table_id = fib->table_id;
2596 ip6_main_t * im6 = &ip6_main;
2597 fib_index = vec_elt (im6->fib_index_by_sw_if_index,
2598 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2599 fib = find_ip6_fib_by_table_index_or_id (im6, fib_index,
2600 IP6_ROUTE_FLAG_FIB_INDEX);
2601 table_id = fib->table_id;
2604 vnip = hash_get (lcm->vni_by_table_id, table_id);
2608 clib_warning ("vrf %d is not mapped to any vni!", table_id);
2614 lisp_cp_lookup (vlib_main_t * vm, vlib_node_runtime_t * node,
2615 vlib_frame_t * from_frame)
2617 u32 * from, * to_next_drop, di, si;
2618 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main();
2619 u32 pkts_mapped = 0;
2620 uword n_left_from, n_left_to_next_drop;
2622 from = vlib_frame_vector_args (from_frame);
2623 n_left_from = from_frame->n_vectors;
2625 while (n_left_from > 0)
2627 vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
2628 to_next_drop, n_left_to_next_drop);
2630 while (n_left_from > 0 && n_left_to_next_drop > 0)
2635 gid_address_t src, dst;
2636 ip_prefix_t * spref, * dpref;
2638 gid_address_type (&src) = GID_ADDR_IP_PREFIX;
2639 spref = &gid_address_ippref(&src);
2640 gid_address_type (&dst) = GID_ADDR_IP_PREFIX;
2641 dpref = &gid_address_ippref(&dst);
2646 to_next_drop[0] = pi0;
2648 n_left_to_next_drop -= 1;
2650 p0 = vlib_get_buffer (vm, pi0);
2651 p0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
2653 /* src/dst eid pair */
2654 ip0 = vlib_buffer_get_current (p0);
2655 get_src_and_dst (ip0, &ip_prefix_addr(spref), &ip_prefix_addr(dpref));
2656 ip_prefix_len(spref) = ip_address_max_len (ip_prefix_version(spref));
2657 ip_prefix_len(dpref) = ip_address_max_len (ip_prefix_version(dpref));
2659 vni = lisp_get_vni_from_buffer (p0, ip_prefix_version (spref));
2660 gid_address_vni (&dst) = vni;
2661 gid_address_vni (&src) = vni;
2663 /* if we have remote mapping for destination already in map-chache
2664 add forwarding tunnel directly. If not send a map-request */
2665 di = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst);
2668 mapping_t * m = vec_elt_at_index (lcm->mapping_pool, di);
2669 /* send a map-request also in case of negative mapping entry
2670 with corresponding action */
2671 if (m->action == ACTION_SEND_MAP_REQUEST)
2673 /* send map-request */
2674 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
2679 si = gid_dictionary_lookup (&lcm->mapping_index_by_gid,
2683 dp_add_fwd_entry (lcm, si, di);
2689 /* send map-request */
2690 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
2694 if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED))
2696 lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, p0,
2699 memset(tr, 0, sizeof(*tr));
2700 gid_address_copy (&tr->dst_eid, &dst);
2701 if (vec_len(lcm->map_resolvers) > 0)
2703 clib_memcpy (&tr->map_resolver_ip,
2704 vec_elt_at_index(lcm->map_resolvers, 0),
2705 sizeof(ip_address_t));
2708 gid_address_free (&dst);
2709 gid_address_free (&src);
2712 vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP, n_left_to_next_drop);
2714 vlib_node_increment_counter (vm, node->node_index,
2715 LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
2717 return from_frame->n_vectors;
2720 VLIB_REGISTER_NODE (lisp_cp_lookup_node) = {
2721 .function = lisp_cp_lookup,
2722 .name = "lisp-cp-lookup",
2723 .vector_size = sizeof (u32),
2724 .format_trace = format_lisp_cp_lookup_trace,
2725 .type = VLIB_NODE_TYPE_INTERNAL,
2727 .n_errors = LISP_CP_LOOKUP_N_ERROR,
2728 .error_strings = lisp_cp_lookup_error_strings,
2730 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
2733 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
2734 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
2735 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
2739 /* lisp_cp_input statistics */
2740 #define foreach_lisp_cp_input_error \
2742 _(MAP_REPLIES_RECEIVED, "map-replies received")
2744 static char * lisp_cp_input_error_strings[] = {
2745 #define _(sym,string) string,
2746 foreach_lisp_cp_input_error
2752 #define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
2753 foreach_lisp_cp_input_error
2755 LISP_CP_INPUT_N_ERROR,
2756 } lisp_cp_input_error_t;
2760 LISP_CP_INPUT_NEXT_DROP,
2761 LISP_CP_INPUT_N_NEXT,
2762 } lisp_cp_input_next_t;
2766 gid_address_t dst_eid;
2767 ip4_address_t map_resolver_ip;
2768 } lisp_cp_input_trace_t;
2771 format_lisp_cp_input_trace (u8 * s, va_list * args)
2773 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2774 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2775 CLIB_UNUSED(lisp_cp_input_trace_t * t) = va_arg (*args, lisp_cp_input_trace_t *);
2777 s = format (s, "LISP-CP-INPUT: TODO");
2782 process_map_reply (lisp_cp_main_t * lcm, vlib_buffer_t * b)
2784 u32 len = 0, i, ttl, dst_map_index = 0;
2786 pending_map_request_t * pmr;
2788 map_reply_hdr_t * mrep_hdr;
2792 u8 authoritative, action;
2793 locator_t * locators = 0, * loc;
2795 mrep_hdr = vlib_buffer_get_current (b);
2797 /* Check pending requests table and nonce */
2798 nonce = MREP_NONCE(mrep_hdr);
2799 pmr_index = hash_get(lcm->pending_map_requests_by_nonce, nonce);
2802 clib_warning("No pending map-request entry with nonce %lu!", nonce);
2805 pmr = pool_elt_at_index(lcm->pending_map_requests_pool, pmr_index[0]);
2807 vlib_buffer_pull (b, sizeof(*mrep_hdr));
2809 for (i = 0; i < MREP_REC_COUNT(mrep_hdr); i++)
2812 h = vlib_buffer_get_current (b);
2813 ttl = clib_net_to_host_u32 (MAP_REC_TTL(h));
2814 action = MAP_REC_ACTION(h);
2815 authoritative = MAP_REC_AUTH(h);
2817 len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed);
2820 clib_warning ("Failed to parse mapping record!");
2821 vec_foreach (loc, locators)
2829 /* insert/update mappings cache */
2830 vnet_lisp_add_del_mapping (&deid, locators, action, authoritative, ttl, 1,
2833 /* try to program forwarding only if mapping saved or updated*/
2834 if ((u32) ~0 != dst_map_index)
2835 lisp_add_del_adjacency (lcm, &pmr->src, &deid, 1);
2840 /* remove pending map request entry */
2841 hash_unset(lcm->pending_map_requests_by_nonce, nonce);
2842 pool_put(lcm->pending_map_requests_pool, pmr);
2846 process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm, vlib_buffer_t * b)
2848 map_request_hdr_t * mreq_hdr;
2849 gid_address_t src, dst;
2852 gid_address_t * itr_rlocs = 0, * rloc;
2854 mreq_hdr = vlib_buffer_get_current (b);
2855 vlib_buffer_pull (b, sizeof(*mreq_hdr));
2857 // nonce = MREQ_NONCE(mreq_hdr);
2859 if (!MREQ_SMR(mreq_hdr)) {
2860 clib_warning("Only SMR Map-Requests supported for now!");
2865 len = lisp_msg_parse_addr (b, &src);
2869 /* for now we don't do anything with the itr's rlocs */
2870 len = lisp_msg_parse_itr_rlocs (b, &itr_rlocs, MREQ_ITR_RLOC_COUNT(mreq_hdr) + 1);
2874 /* TODO: RLOCs are currently unused, so free them for now */
2875 vec_foreach (rloc, itr_rlocs)
2877 gid_address_free (rloc);
2880 /* parse eid records and send SMR-invoked map-requests */
2881 for (i = 0; i < MREQ_REC_COUNT(mreq_hdr); i++)
2883 memset(&dst, 0, sizeof(dst));
2884 len = lisp_msg_parse_eid_rec (b, &dst);
2887 clib_warning("Can't parse map-request EID-record");
2890 /* send SMR-invoked map-requests */
2891 send_encapsulated_map_request (vm, lcm, &dst, &src, /* invoked */ 1);
2896 lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
2897 vlib_frame_t * from_frame)
2899 u32 n_left_from, * from, * to_next_drop;
2900 lisp_msg_type_e type;
2901 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2903 from = vlib_frame_vector_args (from_frame);
2904 n_left_from = from_frame->n_vectors;
2907 while (n_left_from > 0)
2909 u32 n_left_to_next_drop;
2911 vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
2912 to_next_drop, n_left_to_next_drop);
2913 while (n_left_from > 0 && n_left_to_next_drop > 0)
2921 to_next_drop[0] = bi0;
2923 n_left_to_next_drop -= 1;
2925 b0 = vlib_get_buffer (vm, bi0);
2927 type = lisp_msg_type(vlib_buffer_get_current (b0));
2930 case LISP_MAP_REPLY:
2931 process_map_reply (lcm, b0);
2933 case LISP_MAP_REQUEST:
2934 process_map_request(vm, lcm, b0);
2937 clib_warning("Unsupported LISP message type %d", type);
2941 b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP];
2943 if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
2949 vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP, n_left_to_next_drop);
2951 return from_frame->n_vectors;
2954 VLIB_REGISTER_NODE (lisp_cp_input_node) = {
2955 .function = lisp_cp_input,
2956 .name = "lisp-cp-input",
2957 .vector_size = sizeof (u32),
2958 .format_trace = format_lisp_cp_input_trace,
2959 .type = VLIB_NODE_TYPE_INTERNAL,
2961 .n_errors = LISP_CP_INPUT_N_ERROR,
2962 .error_strings = lisp_cp_input_error_strings,
2964 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
2967 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
2972 lisp_cp_init (vlib_main_t *vm)
2974 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2975 clib_error_t * error = 0;
2977 if ((error = vlib_call_init_function (vm, lisp_gpe_init)))
2980 lcm->im4 = &ip4_main;
2981 lcm->im6 = &ip6_main;
2982 lcm->vlib_main = vm;
2983 lcm->vnet_main = vnet_get_main();
2984 lcm->mreq_itr_rlocs = ~0;
2987 gid_dictionary_init (&lcm->mapping_index_by_gid);
2989 /* default vrf mapped to vni 0 */
2990 hash_set(lcm->table_id_by_vni, 0, 0);
2991 hash_set(lcm->vni_by_table_id, 0, 0);
2993 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp,
2994 lisp_cp_input_node.index, 1 /* is_ip4 */);
2995 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6,
2996 lisp_cp_input_node.index, 0 /* is_ip4 */);
3001 VLIB_INIT_FUNCTION(lisp_cp_init);