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 */
798 res_map_index[0] = mi;
806 vnet_lisp_clear_all_remote_adjacencies (void)
809 u32 mi, * map_indices = 0, * map_indexp;
810 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
811 vnet_lisp_add_del_mapping_args_t _dm_args, * dm_args = &_dm_args;
812 vnet_lisp_add_del_locator_set_args_t _ls, * ls = &_ls;
814 pool_foreach_index (mi, lcm->mapping_pool,
816 vec_add1 (map_indices, mi);
819 vec_foreach (map_indexp, map_indices)
821 mapping_t * map = pool_elt_at_index (lcm->mapping_pool, map_indexp[0]);
824 dp_del_fwd_entry (lcm, 0, map_indexp[0]);
827 gid_address_copy (&dm_args->eid, &map->eid);
828 dm_args->locator_set_index = map->locator_set_index;
830 /* delete mapping associated to fwd entry */
831 vnet_lisp_map_cache_add_del (dm_args, 0);
835 ls->index = map->locator_set_index;
836 /* delete locator set */
837 rv = vnet_lisp_add_del_locator_set (ls, 0);
845 vec_free (map_indices);
850 * Adds adjacency or removes forwarding entry associated to remote mapping.
851 * Note that adjacencies are not stored, they only result in forwarding entries
855 lisp_add_del_adjacency (lisp_cp_main_t * lcm, gid_address_t * local_eid,
856 gid_address_t * remote_eid, u8 is_add)
858 u32 local_mi, remote_mi = ~0;
860 if (vnet_lisp_enable_disable_status () == 0)
862 clib_warning ("LISP is disabled!");
863 return VNET_API_ERROR_LISP_DISABLED;
866 remote_mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, remote_eid);
867 if (GID_LOOKUP_MISS == remote_mi)
869 clib_warning("Remote eid %U not found. Cannot add adjacency!",
870 format_gid_address, remote_eid);
877 /* TODO 1) check if src/dst 2) once we have src/dst working, use it in
880 /* check if source eid has an associated mapping. If pitr mode is on,
881 * just use the pitr's mapping */
882 local_mi = lcm->lisp_pitr ? lcm->pitr_map_index :
883 gid_dictionary_lookup (&lcm->mapping_index_by_gid, local_eid);
886 if (GID_LOOKUP_MISS == local_mi)
888 clib_warning("Local eid %U not found. Cannot add adjacency!",
889 format_gid_address, local_eid);
894 /* update forwarding */
895 dp_add_fwd_entry (lcm, local_mi, remote_mi);
898 dp_del_fwd_entry (lcm, 0, remote_mi);
904 vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a)
906 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
907 return lisp_add_del_adjacency(lcm, &a->seid, &a->deid, a->is_add);
911 * Handler for add/del remote mapping CLI.
913 * @param vm vlib context
914 * @param input input from user
916 * @return pointer to clib error structure
918 static clib_error_t *
919 lisp_add_del_remote_mapping_command_fn (vlib_main_t * vm,
920 unformat_input_t * input,
921 vlib_cli_command_t * cmd)
923 clib_error_t * error = 0;
924 unformat_input_t _line_input, * line_input = &_line_input;
925 u8 is_add = 1, del_all = 0;
926 locator_t rloc, * rlocs = 0, * curr_rloc = 0;
927 ip_prefix_t * deid_ippref, * seid_ippref;
928 gid_address_t seid, deid;
929 u8 * dmac = gid_address_mac (&deid);
930 u8 * smac = gid_address_mac (&seid);
931 u8 deid_set = 0, seid_set = 0;
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(&deid, 0, sizeof(deid));
941 memset(&seid, 0, sizeof(seid));
942 memset(&rloc, 0, sizeof(rloc));
944 seid_ippref = &gid_address_ippref(&seid);
945 deid_ippref = &gid_address_ippref(&deid);
947 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
949 if (unformat (line_input, "del-all"))
951 else if (unformat (line_input, "del"))
953 else if (unformat (line_input, "add"))
955 else if (unformat (line_input, "deid %U",
956 unformat_ip_prefix, deid_ippref))
958 gid_address_type (&deid) = GID_ADDR_IP_PREFIX;
961 else if (unformat (line_input, "deid %U",
962 unformat_mac_address, dmac))
964 gid_address_type (&deid) = GID_ADDR_MAC;
967 else if (unformat (line_input, "vni %u", &vni))
969 gid_address_vni (&seid) = vni;
970 gid_address_vni (&deid) = vni;
972 else if (unformat (line_input, "seid %U",
973 unformat_ip_prefix, seid_ippref))
975 gid_address_type (&seid) = GID_ADDR_IP_PREFIX;
978 else if (unformat (line_input, "seid %U",
979 unformat_mac_address, smac))
981 gid_address_type (&seid) = GID_ADDR_MAC;
984 else if (unformat (line_input, "p %d w %d", &p, &w))
988 clib_warning ("No RLOC configured for setting priority/weight!");
991 curr_rloc->priority = p;
992 curr_rloc->weight = w;
994 else if (unformat (line_input, "rloc %U", unformat_ip_address,
997 vec_add1 (rlocs, rloc);
998 curr_rloc = &rlocs[vec_len (rlocs) - 1];
1000 else if (unformat (line_input, "action %s", &s))
1002 if (!strcmp ((char *)s, "no-action"))
1003 action = ACTION_NONE;
1004 if (!strcmp ((char *)s, "natively-forward"))
1005 action = ACTION_NATIVELY_FORWARDED;
1006 if (!strcmp ((char *)s, "send-map-request"))
1007 action = ACTION_SEND_MAP_REQUEST;
1008 else if (!strcmp ((char *)s, "drop"))
1009 action = ACTION_DROP;
1012 clib_warning ("invalid action: '%s'", s);
1018 clib_warning ("parse error");
1027 clib_warning ("missing deid!");
1031 if (GID_ADDR_IP_PREFIX == gid_address_type (&deid))
1033 /* if seid not set, make sure the ip version is the same as that
1034 * of the deid. This ensures the seid to be configured will be
1035 * either 0/0 or ::/0 */
1037 ip_prefix_version(seid_ippref) = ip_prefix_version(deid_ippref);
1040 (ip_prefix_version (deid_ippref)
1041 != ip_prefix_version(seid_ippref)))
1043 clib_warning ("source and destination EIDs are not"
1044 " in the same IP family!");
1049 if (is_add && (~0 == action)
1050 && 0 == vec_len (rlocs))
1052 clib_warning ("no action set for negative map-reply!");
1058 vnet_lisp_clear_all_remote_adjacencies ();
1062 /* TODO build src/dst with seid*/
1064 /* if it's a delete, clean forwarding */
1067 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1068 rv = lisp_add_del_adjacency (lcm, 0, &deid, /* is_add */ 0);
1072 /* add as static remote mapping, i.e., not authoritative and infinite
1074 rv = vnet_lisp_add_del_mapping (&deid, rlocs, action, 0, ~0, is_add, 0);
1078 clib_warning("failed to %s remote mapping!", is_add ? "add" : "delete");
1082 unformat_free (line_input);
1088 VLIB_CLI_COMMAND (lisp_add_del_remote_mapping_command) = {
1089 .path = "lisp remote-mapping",
1090 .short_help = "lisp remote-mapping add|del [del-all] vni <vni>"
1091 "deid <dest-eid> seid <src-eid> [action <no-action|natively-forward|"
1092 "send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
1093 .function = lisp_add_del_remote_mapping_command_fn,
1097 * Handler for add/del adjacency CLI.
1099 static clib_error_t *
1100 lisp_add_del_adjacency_command_fn (vlib_main_t * vm, unformat_input_t * input,
1101 vlib_cli_command_t * cmd)
1103 clib_error_t * error = 0;
1104 unformat_input_t _line_input, * line_input = &_line_input;
1105 vnet_lisp_add_del_adjacency_args_t _a, * a = &_a;
1107 locator_t rloc, * rlocs = 0;
1108 ip_prefix_t * deid_ippref, * seid_ippref;
1109 gid_address_t seid, deid;
1110 u8 * dmac = gid_address_mac (&deid);
1111 u8 * smac = gid_address_mac (&seid);
1112 u8 deid_set = 0, seid_set = 0;
1114 u32 vni, action = ~0;
1117 /* Get a line of input. */
1118 if (! unformat_user (input, unformat_line_input, line_input))
1121 memset(&deid, 0, sizeof(deid));
1122 memset(&seid, 0, sizeof(seid));
1123 memset(&rloc, 0, sizeof(rloc));
1125 seid_ippref = &gid_address_ippref(&seid);
1126 deid_ippref = &gid_address_ippref(&deid);
1128 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1130 if (unformat (line_input, "del"))
1132 else if (unformat (line_input, "add"))
1134 else if (unformat (line_input, "deid %U",
1135 unformat_ip_prefix, deid_ippref))
1137 gid_address_type (&deid) = GID_ADDR_IP_PREFIX;
1140 else if (unformat (line_input, "deid %U",
1141 unformat_mac_address, dmac))
1143 gid_address_type (&deid) = GID_ADDR_MAC;
1146 else if (unformat (line_input, "vni %u", &vni))
1148 gid_address_vni (&seid) = vni;
1149 gid_address_vni (&deid) = vni;
1151 else if (unformat (line_input, "seid %U",
1152 unformat_ip_prefix, seid_ippref))
1154 gid_address_type (&seid) = GID_ADDR_IP_PREFIX;
1157 else if (unformat (line_input, "seid %U",
1158 unformat_mac_address, smac))
1160 gid_address_type (&seid) = GID_ADDR_MAC;
1165 clib_warning ("parse error");
1172 clib_warning ("missing deid!");
1176 if (GID_ADDR_IP_PREFIX == gid_address_type (&deid))
1178 /* if seid not set, make sure the ip version is the same as that
1179 * of the deid. This ensures the seid to be configured will be
1180 * either 0/0 or ::/0 */
1182 ip_prefix_version(seid_ippref) = ip_prefix_version(deid_ippref);
1185 (ip_prefix_version (deid_ippref)
1186 != ip_prefix_version(seid_ippref)))
1188 clib_warning ("source and destination EIDs are not"
1189 " in the same IP family!");
1194 if (is_add && (~0 == action)
1195 && 0 == vec_len (rlocs))
1197 clib_warning ("no action set for negative map-reply!");
1201 memset(a, 0, sizeof(a[0]));
1202 gid_address_copy (&a->seid, &deid);
1203 gid_address_copy (&a->deid, &seid);
1206 rv = vnet_lisp_add_del_adjacency (a);
1209 clib_warning("failed to %s adjacency!", is_add ? "add" : "delete");
1212 unformat_free (line_input);
1218 VLIB_CLI_COMMAND (lisp_add_del_adjacency_command) = {
1219 .path = "lisp adjacency",
1220 .short_help = "lisp adjacency add|del vni <vni>"
1221 "deid <dest-eid> seid <src-eid> [action <no-action|natively-forward|"
1222 "send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
1223 .function = lisp_add_del_adjacency_command_fn,
1227 static clib_error_t *
1228 lisp_show_map_resolvers_command_fn (vlib_main_t * vm,
1229 unformat_input_t * input,
1230 vlib_cli_command_t * cmd)
1232 ip_address_t * addr;
1233 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1235 vec_foreach (addr, lcm->map_resolvers)
1237 vlib_cli_output (vm, "%U", format_ip_address, addr);
1242 VLIB_CLI_COMMAND (lisp_show_map_resolvers_command) = {
1243 .path = "show lisp map-resolvers",
1244 .short_help = "show lisp map-resolvers",
1245 .function = lisp_show_map_resolvers_command_fn,
1249 vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add)
1251 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1252 u32 locator_set_index = ~0;
1256 if (vnet_lisp_enable_disable_status () == 0)
1258 clib_warning ("LISP is disabled!");
1259 return VNET_API_ERROR_LISP_DISABLED;
1262 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
1265 clib_warning ("locator-set %v doesn't exist", locator_set_name);
1268 locator_set_index = p[0];
1272 pool_get (lcm->mapping_pool, m);
1273 m->locator_set_index = locator_set_index;
1275 lcm->pitr_map_index = m - lcm->mapping_pool;
1277 /* enable pitr mode */
1282 /* remove pitr mapping */
1283 pool_put_index (lcm->mapping_pool, lcm->pitr_map_index);
1285 /* disable pitr mode */
1291 static clib_error_t *
1292 lisp_pitr_set_locator_set_command_fn (vlib_main_t * vm,
1293 unformat_input_t * input,
1294 vlib_cli_command_t * cmd)
1296 u8 locator_name_set = 0;
1297 u8 * locator_set_name = 0;
1299 unformat_input_t _line_input, * line_input = &_line_input;
1300 clib_error_t * error = 0;
1303 /* Get a line of input. */
1304 if (! unformat_user (input, unformat_line_input, line_input))
1307 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1309 if (unformat (line_input, "ls %_%v%_", &locator_set_name))
1310 locator_name_set = 1;
1311 else if (unformat (line_input, "disable"))
1314 return clib_error_return (0, "parse error");
1317 if (!locator_name_set)
1319 clib_warning ("No locator set specified!");
1322 rv = vnet_lisp_pitr_set_locator_set (locator_set_name, is_add);
1325 error = clib_error_return(0, "failed to %s pitr!",
1326 is_add ? "add" : "delete");
1330 if (locator_set_name)
1331 vec_free (locator_set_name);
1335 VLIB_CLI_COMMAND (lisp_pitr_set_locator_set_command) = {
1336 .path = "lisp pitr",
1337 .short_help = "lisp pitr [disable] ls <locator-set-name>",
1338 .function = lisp_pitr_set_locator_set_command_fn,
1341 static clib_error_t *
1342 lisp_show_pitr_command_fn (vlib_main_t * vm,
1343 unformat_input_t * input,
1344 vlib_cli_command_t * cmd)
1346 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1351 vlib_cli_output (vm, "%=20s%=16s",
1352 "pitr", lcm->lisp_pitr ? "locator-set" : "");
1354 if (!lcm->lisp_pitr) {
1355 vlib_cli_output (vm, "%=20s", "disable");
1359 if (~0 == lcm->pitr_map_index) {
1360 tmp_str = format(0, "N/A");
1362 m = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
1363 if (~0 != m->locator_set_index) {
1364 ls = pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index);
1365 tmp_str = format(0, "%s", ls->name);
1367 tmp_str = format(0, "N/A");
1370 vec_add1(tmp_str, 0);
1372 vlib_cli_output (vm, "%=20s%=16s",
1380 VLIB_CLI_COMMAND (lisp_show_pitr_command) = {
1381 .path = "show lisp pitr",
1382 .short_help = "Show pitr",
1383 .function = lisp_show_pitr_command_fn,
1387 format_eid_entry (u8 * s, va_list * args)
1389 vnet_main_t * vnm = va_arg (*args, vnet_main_t *);
1390 lisp_cp_main_t * lcm = va_arg (*args, lisp_cp_main_t *);
1391 gid_address_t * gid = va_arg (*args, gid_address_t *);
1392 locator_set_t * ls = va_arg (*args, locator_set_t *);
1397 u8 * type = ls->local ? format(0, "local(%s)", ls->name)
1398 : format(0, "remote");
1400 if (vec_len (ls->locator_indices) == 0)
1402 s = format (s, "%-35U%-20s", format_gid_address, gid, type);
1406 vec_foreach (loc_index, ls->locator_indices)
1408 locator_t * l = pool_elt_at_index (lcm->locator_pool, loc_index[0]);
1410 loc = format (0, "%U", format_vnet_sw_if_index_name, vnm,
1413 loc = format (0, "%U", format_ip_address,
1414 &gid_address_ip (&l->address));
1418 s = format (s, "%-35U%-20s%-v\n", format_gid_address,
1423 s = format (s, "%55s%v\n", "", loc);
1429 static clib_error_t *
1430 lisp_show_eid_table_command_fn (vlib_main_t * vm,
1431 unformat_input_t * input,
1432 vlib_cli_command_t * cmd)
1434 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1436 unformat_input_t _line_input, * line_input = &_line_input;
1441 memset (&eid, 0, sizeof(eid));
1443 /* Get a line of input. */
1444 if (!unformat_user (input, unformat_line_input, line_input))
1447 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1449 if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
1452 return clib_error_return (0, "parse error: '%U'",
1453 format_unformat_error, line_input);
1456 vlib_cli_output (vm, "%-35s%-20s%-s", "EID", "type", "locators");
1460 pool_foreach (mapit, lcm->mapping_pool,
1462 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1463 mapit->locator_set_index);
1464 vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
1465 lcm, &mapit->eid, ls);
1470 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &eid);
1474 mapit = pool_elt_at_index (lcm->mapping_pool, mi);
1475 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1476 mapit->locator_set_index);
1477 vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
1478 lcm, &mapit->eid, ls);
1484 VLIB_CLI_COMMAND (lisp_cp_show_eid_table_command) = {
1485 .path = "show lisp eid-table",
1486 .short_help = "Shows EID table",
1487 .function = lisp_show_eid_table_command_fn,
1490 /* cleans locator to locator-set data and removes locators not part of
1491 * any locator-set */
1493 clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi)
1495 u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes, *to_be_deleted = 0;
1496 locator_set_t * ls = pool_elt_at_index(lcm->locator_set_pool, lsi);
1497 for (i = 0; i < vec_len(ls->locator_indices); i++)
1499 loc_indexp = vec_elt_at_index(ls->locator_indices, i);
1500 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1502 for (j = 0; j < vec_len(ls_indexes[0]); j++)
1504 ls_indexp = vec_elt_at_index(ls_indexes[0], j);
1505 if (ls_indexp[0] == lsi)
1509 /* delete index for removed locator-set*/
1510 vec_del1(ls_indexes[0], j);
1512 /* delete locator if it's part of no locator-set */
1513 if (vec_len (ls_indexes[0]) == 0)
1515 pool_put_index (lcm->locator_pool, loc_indexp[0]);
1516 vec_add1 (to_be_deleted, i);
1522 for (i = 0; i < vec_len (to_be_deleted); i++)
1524 loc_indexp = vec_elt_at_index (to_be_deleted, i);
1525 vec_del1 (ls->locator_indices, loc_indexp[0]);
1527 vec_free (to_be_deleted);
1531 static inline uword *
1532 get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p)
1534 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1539 /* find locator-set */
1542 p = hash_get_mem(lcm->locator_set_index_by_name, a->name);
1553 is_locator_in_locator_set (lisp_cp_main_t * lcm, locator_set_t * ls,
1560 ASSERT(loc != NULL);
1562 vec_foreach(locit, ls->locator_indices)
1564 itloc = pool_elt_at_index(lcm->locator_pool, locit[0]);
1565 if (itloc->sw_if_index == loc->sw_if_index ||
1566 !gid_address_cmp(&itloc->address, &loc->address))
1568 clib_warning("Duplicate locator");
1569 return VNET_API_ERROR_VALUE_EXIST;
1577 remove_locator_from_locator_set (locator_set_t * ls, u32 * locit, u32 ls_index,
1580 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1581 u32 ** ls_indexes = NULL;
1584 ASSERT(locit != NULL);
1586 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1588 pool_put_index(lcm->locator_pool, locit[0]);
1589 vec_del1(ls->locator_indices, loc_id);
1590 vec_del1(ls_indexes[0], ls_index);
1594 vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a,
1595 locator_set_t * ls, u32 * ls_result)
1597 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1598 locator_t * loc = NULL, *itloc = NULL;
1599 uword _p = (u32)~0, * p = &_p;
1600 u32 loc_index = ~0, ls_index = ~0, * locit = NULL, ** ls_indexes = NULL;
1606 if (vnet_lisp_enable_disable_status () == 0)
1608 clib_warning ("LISP is disabled!");
1609 return VNET_API_ERROR_LISP_DISABLED;
1612 p = get_locator_set_index(a, p);
1615 clib_warning("locator-set %v doesn't exist", a->name);
1616 return VNET_API_ERROR_INVALID_ARGUMENT;
1621 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1624 clib_warning("locator-set %d to be overwritten doesn't exist!",
1626 return VNET_API_ERROR_INVALID_ARGUMENT;
1634 ls_result[0] = p[0];
1636 /* allocate locators */
1637 vec_foreach (itloc, a->locators)
1639 ret = is_locator_in_locator_set(lcm, ls, itloc);
1645 pool_get(lcm->locator_pool, loc);
1647 loc_index = loc - lcm->locator_pool;
1649 vec_add1(ls->locator_indices, loc_index);
1651 vec_validate (lcm->locator_to_locator_sets, loc_index);
1652 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1654 vec_add1(ls_indexes[0], ls_index);
1661 itloc = a->locators;
1663 vec_foreach (locit, ls->locator_indices)
1665 loc = pool_elt_at_index(lcm->locator_pool, locit[0]);
1667 if (loc->local && loc->sw_if_index == itloc->sw_if_index)
1669 remove_locator_from_locator_set(ls, locit,
1672 if (0 == loc->local &&
1673 !gid_address_cmp(&loc->address, &itloc->address))
1675 remove_locator_from_locator_set(ls, locit,
1687 vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
1690 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1692 uword _p = (u32)~0, * p = &_p;
1697 if (vnet_lisp_enable_disable_status () == 0)
1699 clib_warning ("LISP is disabled!");
1700 return VNET_API_ERROR_LISP_DISABLED;
1705 p = get_locator_set_index(a, p);
1708 if (p && p[0] != (u32)~0)
1710 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1713 clib_warning("locator-set %d to be overwritten doesn't exist!",
1718 /* clean locator to locator-set vectors and remove locators if
1719 * they're not part of another locator-set */
1720 clean_locator_to_locator_set (lcm, p[0]);
1722 /* remove locator indices from locator set */
1723 vec_free(ls->locator_indices);
1728 ls_result[0] = p[0];
1730 /* new locator-set */
1733 pool_get(lcm->locator_set_pool, ls);
1734 memset(ls, 0, sizeof(*ls));
1735 ls_index = ls - lcm->locator_set_pool;
1739 ls->name = vec_dup(a->name);
1741 if (!lcm->locator_set_index_by_name)
1742 lcm->locator_set_index_by_name = hash_create_vec(
1743 /* size */0, sizeof(ls->name[0]), sizeof(uword));
1744 hash_set_mem(lcm->locator_set_index_by_name, ls->name, ls_index);
1746 /* mark as local locator-set */
1747 vec_add1(lcm->local_locator_set_indexes, ls_index);
1749 ls->local = a->local;
1751 ls_result[0] = ls_index;
1754 ret = vnet_lisp_add_del_locator(a, ls, NULL);
1762 p = get_locator_set_index(a, p);
1765 clib_warning("locator-set %v doesn't exists", a->name);
1769 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1772 clib_warning("locator-set with index %d doesn't exists", p[0]);
1776 if (lcm->mreq_itr_rlocs == p[0])
1778 clib_warning ("Can't delete the locator-set used to constrain "
1779 "the itr-rlocs in map-requests!");
1783 if (vec_len(lcm->locator_set_to_eids) != 0)
1785 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, p[0]);
1786 if (vec_len(eid_indexes[0]) != 0)
1788 clib_warning ("Can't delete a locator that supports a mapping!");
1793 /* clean locator to locator-sets data */
1794 clean_locator_to_locator_set (lcm, p[0]);
1800 vec_foreach_index(it, lcm->local_locator_set_indexes)
1802 lsi = vec_elt(lcm->local_locator_set_indexes, it);
1805 vec_del1(lcm->local_locator_set_indexes, it);
1809 hash_unset_mem(lcm->locator_set_index_by_name, ls->name);
1812 vec_free(ls->locator_indices);
1813 pool_put(lcm->locator_set_pool, ls);
1819 vnet_lisp_enable_disable (u8 is_enable)
1822 clib_error_t * error = 0;
1823 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1824 vnet_lisp_gpe_enable_disable_args_t _a, * a = &_a;
1826 a->is_en = is_enable;
1827 error = vnet_lisp_gpe_enable_disable (a);
1830 return clib_error_return (0, "failed to %s data-plane!",
1831 a->is_en ? "enable" : "disable");
1836 /* enable all ifaces */
1837 hash_foreach(vni, table_id, lcm->table_id_by_vni, ({
1838 dp_add_del_iface(lcm, vni, 1);
1843 /* clear interface table */
1844 hash_free(lcm->dp_intf_by_vni);
1845 hash_free(lcm->fwd_entry_by_mapping_index);
1846 pool_free(lcm->fwd_entry_pool);
1849 /* update global flag */
1850 lcm->is_enabled = is_enable;
1855 static clib_error_t *
1856 lisp_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input,
1857 vlib_cli_command_t * cmd)
1859 unformat_input_t _line_input, * line_input = &_line_input;
1863 /* Get a line of input. */
1864 if (! unformat_user (input, unformat_line_input, line_input))
1867 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1869 if (unformat (line_input, "enable"))
1874 else if (unformat (line_input, "disable"))
1878 return clib_error_return (0, "parse error: '%U'",
1879 format_unformat_error, line_input);
1884 return clib_error_return (0, "state not set");
1886 return vnet_lisp_enable_disable (is_enabled);
1889 VLIB_CLI_COMMAND (lisp_cp_enable_disable_command) = {
1891 .short_help = "lisp [enable|disable]",
1892 .function = lisp_enable_disable_command_fn,
1896 vnet_lisp_enable_disable_status (void)
1898 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1899 return lcm->is_enabled;
1903 format_lisp_status (u8 * s, va_list * args)
1905 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1906 return format (s, "%s", lcm->is_enabled ? "enabled" : "disabled");
1909 static clib_error_t *
1910 lisp_show_status_command_fn (vlib_main_t * vm, unformat_input_t * input,
1911 vlib_cli_command_t * cmd)
1914 msg = format (msg, "feature: %U\ngpe: %U\n",
1915 format_lisp_status, format_vnet_lisp_gpe_status);
1916 vlib_cli_output (vm, "%v", msg);
1921 VLIB_CLI_COMMAND (lisp_show_status_command) = {
1922 .path = "show lisp status",
1923 .short_help = "show lisp status",
1924 .function = lisp_show_status_command_fn,
1927 static clib_error_t *
1928 lisp_show_eid_table_map_command_fn (vlib_main_t * vm, unformat_input_t * input,
1929 vlib_cli_command_t * cmd)
1932 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1934 vlib_cli_output (vm, "%=10s%=10s", "VNI", "VRF");
1935 hash_foreach_pair (p, lcm->table_id_by_vni,
1937 vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
1942 VLIB_CLI_COMMAND (lisp_show_eid_table_map_command) = {
1943 .path = "show lisp eid-table map",
1944 .short_help = "show lisp eid-table vni to vrf mappings",
1945 .function = lisp_show_eid_table_map_command_fn,
1948 static clib_error_t *
1949 lisp_add_del_locator_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
1950 vlib_cli_command_t * cmd)
1952 lisp_gpe_main_t * lgm = &lisp_gpe_main;
1953 vnet_main_t * vnm = lgm->vnet_main;
1954 unformat_input_t _line_input, * line_input = &_line_input;
1956 clib_error_t * error = 0;
1957 u8 * locator_set_name = 0;
1958 locator_t locator, * locators = 0;
1959 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
1963 memset(&locator, 0, sizeof(locator));
1964 memset(a, 0, sizeof(a[0]));
1966 /* Get a line of input. */
1967 if (! unformat_user (input, unformat_line_input, line_input))
1970 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1972 if (unformat (line_input, "add %_%v%_", &locator_set_name))
1974 else if (unformat (line_input, "del %_%v%_", &locator_set_name))
1976 else if (unformat (line_input, "iface %U p %d w %d",
1977 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
1978 &locator.priority, &locator.weight))
1981 vec_add1(locators, locator);
1985 error = unformat_parse_error(line_input);
1990 a->name = locator_set_name;
1991 a->locators = locators;
1995 rv = vnet_lisp_add_del_locator_set(a, &ls_index);
1998 error = clib_error_return(0, "failed to %s locator-set!",
1999 is_add ? "add" : "delete");
2004 if (locator_set_name)
2005 vec_free (locator_set_name);
2009 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_set_command) = {
2010 .path = "lisp locator-set",
2011 .short_help = "lisp locator-set add/del <name> [iface <iface-name> "
2012 "p <priority> w <weight>]",
2013 .function = lisp_add_del_locator_set_command_fn,
2016 static clib_error_t *
2017 lisp_add_del_locator_in_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
2018 vlib_cli_command_t * cmd)
2020 lisp_gpe_main_t * lgm = &lisp_gpe_main;
2021 vnet_main_t * vnm = lgm->vnet_main;
2022 unformat_input_t _line_input, * line_input = &_line_input;
2024 clib_error_t * error = 0;
2025 u8 * locator_set_name = 0;
2026 u8 locator_set_name_set = 0;
2027 locator_t locator, * locators = 0;
2028 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
2031 memset(&locator, 0, sizeof(locator));
2032 memset(a, 0, sizeof(a[0]));
2034 /* Get a line of input. */
2035 if (! unformat_user (input, unformat_line_input, line_input))
2038 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2040 if (unformat (line_input, "add"))
2042 else if (unformat (line_input, "del"))
2044 else if (unformat(line_input, "locator-set %_%v%_", &locator_set_name))
2045 locator_set_name_set = 1;
2046 else if (unformat (line_input, "iface %U p %d w %d",
2047 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
2048 &locator.priority, &locator.weight))
2051 vec_add1(locators, locator);
2055 error = unformat_parse_error(line_input);
2060 if (!locator_set_name_set)
2062 error = clib_error_return(0, "locator_set name not set!");
2066 a->name = locator_set_name;
2067 a->locators = locators;
2071 vnet_lisp_add_del_locator(a, 0, &ls_index);
2075 vec_free (locator_set_name);
2079 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_in_set_command) = {
2080 .path = "lisp locator",
2081 .short_help = "lisp locator add/del locator-set <name> iface <iface-name> "
2082 "p <priority> w <weight>",
2083 .function = lisp_add_del_locator_in_set_command_fn,
2086 static clib_error_t *
2087 lisp_cp_show_locator_sets_command_fn (vlib_main_t * vm,
2088 unformat_input_t * input,
2089 vlib_cli_command_t * cmd)
2091 locator_set_t * lsit;
2094 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2096 vlib_cli_output (vm, "%=20s%=16s%=16s%=16s", "Locator-set", "Locator",
2097 "Priority", "Weight");
2098 pool_foreach (lsit, lcm->locator_set_pool,
2102 msg = format (msg, "%=16v", lsit->name);
2103 vec_foreach (locit, lsit->locator_indices)
2107 msg = format (msg, "%16s", " ");
2109 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
2111 msg = format (msg, "%16d%16d%16d\n", loc->sw_if_index, loc->priority,
2114 msg = format (msg, "%16U%16d%16d\n", format_ip_address,
2115 &gid_address_ip(&loc->address), loc->priority,
2119 vlib_cli_output (vm, "%v", msg);
2125 VLIB_CLI_COMMAND (lisp_cp_show_locator_sets_command) = {
2126 .path = "show lisp locator-set",
2127 .short_help = "Shows locator-sets",
2128 .function = lisp_cp_show_locator_sets_command_fn,
2132 vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
2134 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2135 ip_address_t * addr;
2138 if (vnet_lisp_enable_disable_status () == 0)
2140 clib_warning ("LISP is disabled!");
2141 return VNET_API_ERROR_LISP_DISABLED;
2146 vec_foreach(addr, lcm->map_resolvers)
2148 if (!ip_address_cmp (addr, &a->address))
2150 clib_warning("map-resolver %U already exists!", format_ip_address,
2155 vec_add1(lcm->map_resolvers, a->address);
2159 for (i = 0; i < vec_len(lcm->map_resolvers); i++)
2161 addr = vec_elt_at_index(lcm->map_resolvers, i);
2162 if (!ip_address_cmp (addr, &a->address))
2164 vec_delete(lcm->map_resolvers, 1, i);
2172 static clib_error_t *
2173 lisp_add_del_map_resolver_command_fn (vlib_main_t * vm,
2174 unformat_input_t * input,
2175 vlib_cli_command_t * cmd)
2177 unformat_input_t _line_input, * line_input = &_line_input;
2178 u8 is_add = 1, addr_set = 0;
2179 ip_address_t ip_addr;
2180 clib_error_t * error = 0;
2182 vnet_lisp_add_del_map_resolver_args_t _a, * a = &_a;
2184 /* Get a line of input. */
2185 if (! unformat_user (input, unformat_line_input, line_input))
2188 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2190 if (unformat (line_input, "add"))
2192 else if (unformat (line_input, "del"))
2194 else if (unformat (line_input, "%U", unformat_ip_address, &ip_addr))
2198 error = unformat_parse_error(line_input);
2205 error = clib_error_return(0, "Map-resolver address must be set!");
2210 a->address = ip_addr;
2211 rv = vnet_lisp_add_del_map_resolver (a);
2214 error = clib_error_return(0, "failed to %s map-resolver!",
2215 is_add ? "add" : "delete");
2222 VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = {
2223 .path = "lisp map-resolver",
2224 .short_help = "lisp map-resolver add/del <ip_address>",
2225 .function = lisp_add_del_map_resolver_command_fn,
2229 vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a)
2231 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2234 if (vnet_lisp_enable_disable_status () == 0)
2236 clib_warning("LISP is disabled!");
2237 return VNET_API_ERROR_LISP_DISABLED;
2242 p = hash_get_mem(lcm->locator_set_index_by_name, a->locator_set_name);
2245 clib_warning("locator-set %v doesn't exist", a->locator_set_name);
2246 return VNET_API_ERROR_INVALID_ARGUMENT;
2249 lcm->mreq_itr_rlocs = p[0];
2253 lcm->mreq_itr_rlocs = ~0;
2259 static clib_error_t *
2260 lisp_add_del_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2261 unformat_input_t * input,
2262 vlib_cli_command_t * cmd)
2264 unformat_input_t _line_input, * line_input = &_line_input;
2266 u8 * locator_set_name = 0;
2267 clib_error_t * error = 0;
2269 vnet_lisp_add_del_mreq_itr_rloc_args_t _a, * a = &_a;
2271 /* Get a line of input. */
2272 if (! unformat_user (input, unformat_line_input, line_input))
2275 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2277 if (unformat (line_input, "del"))
2279 else if (unformat (line_input, "add %s", &locator_set_name))
2283 error = unformat_parse_error(line_input);
2289 a->locator_set_name = locator_set_name;
2290 rv = vnet_lisp_add_del_mreq_itr_rlocs (a);
2293 error = clib_error_return(0, "failed to %s map-request itr-rlocs!",
2294 is_add ? "add" : "delete");
2297 vec_free(locator_set_name);
2304 VLIB_CLI_COMMAND (lisp_add_del_map_request_command) = {
2305 .path = "lisp map-request itr-rlocs",
2306 .short_help = "lisp map-request itr-rlocs add/del <locator_set_name>",
2307 .function = lisp_add_del_mreq_itr_rlocs_command_fn,
2310 static clib_error_t *
2311 lisp_show_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2312 unformat_input_t * input,
2313 vlib_cli_command_t * cmd)
2315 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2316 locator_set_t * loc_set;
2318 vlib_cli_output (vm, "%=20s", "itr-rlocs");
2320 if (~0 == lcm->mreq_itr_rlocs)
2325 loc_set = pool_elt_at_index (lcm->locator_set_pool, lcm->mreq_itr_rlocs);
2327 vlib_cli_output (vm, "%=20s", loc_set->name);
2332 VLIB_CLI_COMMAND (lisp_show_map_request_command) = {
2333 .path = "show lisp map-request itr-rlocs",
2334 .short_help = "Shows map-request itr-rlocs",
2335 .function = lisp_show_mreq_itr_rlocs_command_fn,
2338 /* Statistics (not really errors) */
2339 #define foreach_lisp_cp_lookup_error \
2341 _(MAP_REQUESTS_SENT, "map-request sent")
2343 static char * lisp_cp_lookup_error_strings[] = {
2344 #define _(sym,string) string,
2345 foreach_lisp_cp_lookup_error
2351 #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
2352 foreach_lisp_cp_lookup_error
2354 LISP_CP_LOOKUP_N_ERROR,
2355 } lisp_cp_lookup_error_t;
2359 LISP_CP_LOOKUP_NEXT_DROP,
2360 LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
2361 LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
2362 LISP_CP_LOOKUP_N_NEXT,
2363 } lisp_cp_lookup_next_t;
2367 gid_address_t dst_eid;
2368 ip_address_t map_resolver_ip;
2369 } lisp_cp_lookup_trace_t;
2372 format_lisp_cp_lookup_trace (u8 * s, va_list * args)
2374 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2375 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2376 lisp_cp_lookup_trace_t * t = va_arg (*args, lisp_cp_lookup_trace_t *);
2378 s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
2379 format_ip_address, &t->map_resolver_ip, format_gid_address,
2385 get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip,
2386 ip_address_t * sloc)
2388 ip_address_t * mrit;
2390 if (vec_len(lcm->map_resolvers) == 0)
2392 clib_warning("No map-resolver configured");
2396 /* find the first mr ip we have a route to and the ip of the
2397 * iface that has a route to it */
2398 vec_foreach(mrit, lcm->map_resolvers)
2400 if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, mrit, sloc)) {
2401 ip_address_copy(mr_ip, mrit);
2406 clib_warning("Can't find map-resolver and local interface ip!");
2410 static gid_address_t *
2411 build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
2417 ip_interface_address_t * ia = 0;
2418 gid_address_t gid_data, * gid = &gid_data;
2419 gid_address_t * rlocs = 0;
2420 ip_prefix_t * ippref = &gid_address_ippref (gid);
2421 ip_address_t * rloc = &ip_prefix_addr (ippref);
2423 memset (gid, 0, sizeof (gid[0]));
2424 gid_address_type (gid) = GID_ADDR_IP_PREFIX;
2425 for (i = 0; i < vec_len(loc_set->locator_indices); i++)
2427 loc_indexp = vec_elt_at_index(loc_set->locator_indices, i);
2428 loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
2430 /* Add ipv4 locators first TODO sort them */
2431 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
2432 loc->sw_if_index, 1 /* unnumbered */,
2434 addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
2435 ip_address_set (rloc, addr, IP4);
2436 ip_prefix_len (ippref) = 32;
2437 vec_add1 (rlocs, gid[0]);
2440 /* Add ipv6 locators */
2441 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
2442 loc->sw_if_index, 1 /* unnumbered */,
2444 addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
2445 ip_address_set (rloc, addr, IP6);
2446 ip_prefix_len (ippref) = 128;
2447 vec_add1 (rlocs, gid[0]);
2453 static vlib_buffer_t *
2454 build_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
2455 gid_address_t * seid, gid_address_t * deid,
2456 locator_set_t * loc_set, ip_address_t * mr_ip,
2457 ip_address_t * sloc, u8 is_smr_invoked,
2458 u64 *nonce_res, u32 * bi_res)
2462 gid_address_t * rlocs = 0;
2464 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
2466 clib_warning ("Can't allocate buffer for Map-Request!");
2470 b = vlib_get_buffer (vm, bi);
2472 /* leave some space for the encap headers */
2473 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
2476 rlocs = build_itr_rloc_list (lcm, loc_set);
2479 lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, nonce_res);
2481 /* push ecm: udp-ip-lisp */
2482 lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid);
2484 /* push outer ip header */
2485 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc,
2495 send_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
2496 gid_address_t * seid, gid_address_t * deid,
2499 u32 next_index, bi = 0, * to_next, map_index;
2503 locator_set_t * loc_set;
2505 pending_map_request_t * pmr;
2506 ip_address_t mr_ip, sloc;
2509 /* get locator-set for seid */
2510 if (!lcm->lisp_pitr)
2512 map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
2513 if (map_index == ~0)
2515 clib_warning("No local mapping found in eid-table for %U!",
2516 format_gid_address, seid);
2520 map = pool_elt_at_index (lcm->mapping_pool, map_index);
2524 clib_warning("Mapping found for src eid %U is not marked as local!",
2525 format_gid_address, seid);
2528 ls_index = map->locator_set_index;
2532 map_index = lcm->pitr_map_index;
2533 map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
2534 ls_index = map->locator_set_index;
2537 /* overwrite locator set if map-request itr-rlocs configured */
2538 if (~0 != lcm->mreq_itr_rlocs)
2540 ls_index = lcm->mreq_itr_rlocs;
2543 loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index);
2545 /* get local iface ip to use in map-request */
2546 if (0 == get_mr_and_local_iface_ip (lcm, &mr_ip, &sloc))
2549 /* build the encapsulated map request */
2550 b = build_encapsulated_map_request (vm, lcm, seid, deid, loc_set, &mr_ip,
2551 &sloc, is_smr_invoked, &nonce, &bi);
2556 /* set fib index to default and lookup node */
2557 vnet_buffer(b)->sw_if_index[VLIB_TX] = 0;
2558 next_index = (ip_addr_version(&mr_ip) == IP4) ?
2559 ip4_lookup_node.index : ip6_lookup_node.index;
2561 f = vlib_get_frame_to_node (vm, next_index);
2563 /* Enqueue the packet */
2564 to_next = vlib_frame_vector_args (f);
2567 vlib_put_frame_to_node (vm, next_index, f);
2569 /* add map-request to pending requests table */
2570 pool_get(lcm->pending_map_requests_pool, pmr);
2571 gid_address_copy (&pmr->src, seid);
2572 gid_address_copy (&pmr->dst, deid);
2573 hash_set(lcm->pending_map_requests_by_nonce, nonce,
2574 pmr - lcm->pending_map_requests_pool);
2578 get_src_and_dst (void *hdr, ip_address_t * src, ip_address_t *dst)
2580 ip4_header_t * ip4 = hdr;
2583 if ((ip4->ip_version_and_header_length & 0xF0) == 0x40)
2585 ip_address_set(src, &ip4->src_address, IP4);
2586 ip_address_set(dst, &ip4->dst_address, IP4);
2591 ip_address_set(src, &ip6->src_address, IP6);
2592 ip_address_set(dst, &ip6->dst_address, IP6);
2597 lisp_get_vni_from_buffer (vlib_buffer_t * b, u8 version)
2600 u32 vni = ~0, table_id = ~0, fib_index;
2601 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
2606 ip4_main_t * im4 = &ip4_main;
2607 fib_index = vec_elt (im4->fib_index_by_sw_if_index,
2608 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2609 fib = find_ip4_fib_by_table_index_or_id (im4, fib_index,
2610 IP4_ROUTE_FLAG_FIB_INDEX);
2611 table_id = fib->table_id;
2616 ip6_main_t * im6 = &ip6_main;
2617 fib_index = vec_elt (im6->fib_index_by_sw_if_index,
2618 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2619 fib = find_ip6_fib_by_table_index_or_id (im6, fib_index,
2620 IP6_ROUTE_FLAG_FIB_INDEX);
2621 table_id = fib->table_id;
2624 vnip = hash_get (lcm->vni_by_table_id, table_id);
2628 clib_warning ("vrf %d is not mapped to any vni!", table_id);
2634 lisp_cp_lookup (vlib_main_t * vm, vlib_node_runtime_t * node,
2635 vlib_frame_t * from_frame)
2637 u32 * from, * to_next_drop, di, si;
2638 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main();
2639 u32 pkts_mapped = 0;
2640 uword n_left_from, n_left_to_next_drop;
2642 from = vlib_frame_vector_args (from_frame);
2643 n_left_from = from_frame->n_vectors;
2645 while (n_left_from > 0)
2647 vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
2648 to_next_drop, n_left_to_next_drop);
2650 while (n_left_from > 0 && n_left_to_next_drop > 0)
2655 gid_address_t src, dst;
2656 ip_prefix_t * spref, * dpref;
2658 gid_address_type (&src) = GID_ADDR_IP_PREFIX;
2659 spref = &gid_address_ippref(&src);
2660 gid_address_type (&dst) = GID_ADDR_IP_PREFIX;
2661 dpref = &gid_address_ippref(&dst);
2666 to_next_drop[0] = pi0;
2668 n_left_to_next_drop -= 1;
2670 p0 = vlib_get_buffer (vm, pi0);
2671 p0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
2673 /* src/dst eid pair */
2674 ip0 = vlib_buffer_get_current (p0);
2675 get_src_and_dst (ip0, &ip_prefix_addr(spref), &ip_prefix_addr(dpref));
2676 ip_prefix_len(spref) = ip_address_max_len (ip_prefix_version(spref));
2677 ip_prefix_len(dpref) = ip_address_max_len (ip_prefix_version(dpref));
2679 vni = lisp_get_vni_from_buffer (p0, ip_prefix_version (spref));
2680 gid_address_vni (&dst) = vni;
2681 gid_address_vni (&src) = vni;
2683 /* if we have remote mapping for destination already in map-chache
2684 add forwarding tunnel directly. If not send a map-request */
2685 di = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst);
2688 mapping_t * m = vec_elt_at_index (lcm->mapping_pool, di);
2689 /* send a map-request also in case of negative mapping entry
2690 with corresponding action */
2691 if (m->action == ACTION_SEND_MAP_REQUEST)
2693 /* send map-request */
2694 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
2699 si = gid_dictionary_lookup (&lcm->mapping_index_by_gid,
2703 dp_add_fwd_entry (lcm, si, di);
2709 /* send map-request */
2710 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
2714 if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED))
2716 lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, p0,
2719 memset(tr, 0, sizeof(*tr));
2720 gid_address_copy (&tr->dst_eid, &dst);
2721 if (vec_len(lcm->map_resolvers) > 0)
2723 clib_memcpy (&tr->map_resolver_ip,
2724 vec_elt_at_index(lcm->map_resolvers, 0),
2725 sizeof(ip_address_t));
2728 gid_address_free (&dst);
2729 gid_address_free (&src);
2732 vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP, n_left_to_next_drop);
2734 vlib_node_increment_counter (vm, node->node_index,
2735 LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
2737 return from_frame->n_vectors;
2740 VLIB_REGISTER_NODE (lisp_cp_lookup_node) = {
2741 .function = lisp_cp_lookup,
2742 .name = "lisp-cp-lookup",
2743 .vector_size = sizeof (u32),
2744 .format_trace = format_lisp_cp_lookup_trace,
2745 .type = VLIB_NODE_TYPE_INTERNAL,
2747 .n_errors = LISP_CP_LOOKUP_N_ERROR,
2748 .error_strings = lisp_cp_lookup_error_strings,
2750 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
2753 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
2754 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
2755 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
2759 /* lisp_cp_input statistics */
2760 #define foreach_lisp_cp_input_error \
2762 _(MAP_REPLIES_RECEIVED, "map-replies received")
2764 static char * lisp_cp_input_error_strings[] = {
2765 #define _(sym,string) string,
2766 foreach_lisp_cp_input_error
2772 #define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
2773 foreach_lisp_cp_input_error
2775 LISP_CP_INPUT_N_ERROR,
2776 } lisp_cp_input_error_t;
2780 LISP_CP_INPUT_NEXT_DROP,
2781 LISP_CP_INPUT_N_NEXT,
2782 } lisp_cp_input_next_t;
2786 gid_address_t dst_eid;
2787 ip4_address_t map_resolver_ip;
2788 } lisp_cp_input_trace_t;
2791 format_lisp_cp_input_trace (u8 * s, va_list * args)
2793 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2794 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2795 CLIB_UNUSED(lisp_cp_input_trace_t * t) = va_arg (*args, lisp_cp_input_trace_t *);
2797 s = format (s, "LISP-CP-INPUT: TODO");
2802 process_map_reply (lisp_cp_main_t * lcm, vlib_buffer_t * b)
2804 u32 len = 0, i, ttl, dst_map_index = 0;
2806 pending_map_request_t * pmr;
2808 map_reply_hdr_t * mrep_hdr;
2812 u8 authoritative, action;
2813 locator_t * locators = 0, * loc;
2815 mrep_hdr = vlib_buffer_get_current (b);
2817 /* Check pending requests table and nonce */
2818 nonce = MREP_NONCE(mrep_hdr);
2819 pmr_index = hash_get(lcm->pending_map_requests_by_nonce, nonce);
2822 clib_warning("No pending map-request entry with nonce %lu!", nonce);
2825 pmr = pool_elt_at_index(lcm->pending_map_requests_pool, pmr_index[0]);
2827 vlib_buffer_pull (b, sizeof(*mrep_hdr));
2829 for (i = 0; i < MREP_REC_COUNT(mrep_hdr); i++)
2832 h = vlib_buffer_get_current (b);
2833 ttl = clib_net_to_host_u32 (MAP_REC_TTL(h));
2834 action = MAP_REC_ACTION(h);
2835 authoritative = MAP_REC_AUTH(h);
2837 len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed);
2840 clib_warning ("Failed to parse mapping record!");
2841 vec_foreach (loc, locators)
2849 /* insert/update mappings cache */
2850 vnet_lisp_add_del_mapping (&deid, locators, action, authoritative, ttl, 1,
2853 /* try to program forwarding only if mapping saved or updated*/
2854 if ((u32) ~0 != dst_map_index)
2855 lisp_add_del_adjacency (lcm, &pmr->src, &deid, 1);
2860 /* remove pending map request entry */
2861 hash_unset(lcm->pending_map_requests_by_nonce, nonce);
2862 pool_put(lcm->pending_map_requests_pool, pmr);
2866 process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm, vlib_buffer_t * b)
2868 map_request_hdr_t * mreq_hdr;
2869 gid_address_t src, dst;
2872 gid_address_t * itr_rlocs = 0, * rloc;
2874 mreq_hdr = vlib_buffer_get_current (b);
2875 vlib_buffer_pull (b, sizeof(*mreq_hdr));
2877 // nonce = MREQ_NONCE(mreq_hdr);
2879 if (!MREQ_SMR(mreq_hdr)) {
2880 clib_warning("Only SMR Map-Requests supported for now!");
2885 len = lisp_msg_parse_addr (b, &src);
2889 /* for now we don't do anything with the itr's rlocs */
2890 len = lisp_msg_parse_itr_rlocs (b, &itr_rlocs, MREQ_ITR_RLOC_COUNT(mreq_hdr) + 1);
2894 /* TODO: RLOCs are currently unused, so free them for now */
2895 vec_foreach (rloc, itr_rlocs)
2897 gid_address_free (rloc);
2900 /* parse eid records and send SMR-invoked map-requests */
2901 for (i = 0; i < MREQ_REC_COUNT(mreq_hdr); i++)
2903 memset(&dst, 0, sizeof(dst));
2904 len = lisp_msg_parse_eid_rec (b, &dst);
2907 clib_warning("Can't parse map-request EID-record");
2910 /* send SMR-invoked map-requests */
2911 send_encapsulated_map_request (vm, lcm, &dst, &src, /* invoked */ 1);
2916 lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
2917 vlib_frame_t * from_frame)
2919 u32 n_left_from, * from, * to_next_drop;
2920 lisp_msg_type_e type;
2921 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2923 from = vlib_frame_vector_args (from_frame);
2924 n_left_from = from_frame->n_vectors;
2927 while (n_left_from > 0)
2929 u32 n_left_to_next_drop;
2931 vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
2932 to_next_drop, n_left_to_next_drop);
2933 while (n_left_from > 0 && n_left_to_next_drop > 0)
2941 to_next_drop[0] = bi0;
2943 n_left_to_next_drop -= 1;
2945 b0 = vlib_get_buffer (vm, bi0);
2947 type = lisp_msg_type(vlib_buffer_get_current (b0));
2950 case LISP_MAP_REPLY:
2951 process_map_reply (lcm, b0);
2953 case LISP_MAP_REQUEST:
2954 process_map_request(vm, lcm, b0);
2957 clib_warning("Unsupported LISP message type %d", type);
2961 b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP];
2963 if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
2969 vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP, n_left_to_next_drop);
2971 return from_frame->n_vectors;
2974 VLIB_REGISTER_NODE (lisp_cp_input_node) = {
2975 .function = lisp_cp_input,
2976 .name = "lisp-cp-input",
2977 .vector_size = sizeof (u32),
2978 .format_trace = format_lisp_cp_input_trace,
2979 .type = VLIB_NODE_TYPE_INTERNAL,
2981 .n_errors = LISP_CP_INPUT_N_ERROR,
2982 .error_strings = lisp_cp_input_error_strings,
2984 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
2987 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
2992 lisp_cp_init (vlib_main_t *vm)
2994 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2995 clib_error_t * error = 0;
2997 if ((error = vlib_call_init_function (vm, lisp_gpe_init)))
3000 lcm->im4 = &ip4_main;
3001 lcm->im6 = &ip6_main;
3002 lcm->vlib_main = vm;
3003 lcm->vnet_main = vnet_get_main();
3004 lcm->mreq_itr_rlocs = ~0;
3007 gid_dictionary_init (&lcm->mapping_index_by_gid);
3009 /* default vrf mapped to vni 0 */
3010 hash_set(lcm->table_id_by_vni, 0, 0);
3011 hash_set(lcm->vni_by_table_id, 0, 0);
3013 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp,
3014 lisp_cp_input_node.index, 1 /* is_ip4 */);
3015 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6,
3016 lisp_cp_input_node.index, 0 /* is_ip4 */);
3021 VLIB_INIT_FUNCTION(lisp_cp_init);