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_l2, u8 is_add)
147 uword * dp_table, * intf;
148 vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai;
152 dp_table = hash_get(lcm->table_id_by_vni, vni);
156 clib_warning("vni %d not associated to a vrf!", vni);
157 return VNET_API_ERROR_INVALID_VALUE;
162 dp_table = hash_get(lcm->bd_id_by_vni, vni);
165 clib_warning("vni %d not associated to a bridge domain!", vni);
166 return VNET_API_ERROR_INVALID_VALUE;
170 intf = hash_get(is_l2 ? lcm->l2_dp_intf_by_vni :lcm->dp_intf_by_vni, vni);
172 /* enable/disable data-plane interface */
175 /* create interface */
181 ai->dp_table = dp_table[0];
183 vnet_lisp_gpe_add_del_iface (ai, 0);
185 /* keep track of vnis for which interfaces have been created */
186 hash_set(lcm->dp_intf_by_vni, vni, 1);
193 clib_warning("interface for vni %d doesn't exist!", vni);
194 return VNET_API_ERROR_INVALID_VALUE;
199 ai->dp_table = dp_table[0];
200 vnet_lisp_gpe_add_del_iface (ai, 0);
201 hash_unset(lcm->dp_intf_by_vni, vni);
208 dp_del_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index)
210 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, * a = &_a;
211 fwd_entry_t * fe = 0;
213 memset(a, 0, sizeof(*a));
215 feip = hash_get(lcm->fwd_entry_by_mapping_index, dst_map_index);
219 fe = pool_elt_at_index(lcm->fwd_entry_pool, feip[0]);
221 /* delete dp fwd entry */
224 a->locator_pairs = fe->locator_pairs;
225 a->vni = gid_address_vni(&a->rmt_eid);
226 gid_address_copy(&a->rmt_eid, &fe->deid);
228 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
230 /* delete entry in fwd table */
231 hash_unset(lcm->fwd_entry_by_mapping_index, dst_map_index);
232 vec_free(fe->locator_pairs);
233 pool_put(lcm->fwd_entry_pool, fe);
237 * Finds first remote locator with best (lowest) priority that has a local
238 * peer locator with an underlying route to it.
242 get_locator_pair (lisp_cp_main_t* lcm, mapping_t * lcl_map, mapping_t * rmt_map,
243 locator_pair_t ** locator_pairs)
245 u32 i, minp = ~0, limitp = 0, li, check_index = 0, done = 0, esi;
246 locator_set_t * rmt_ls, * lcl_ls;
247 ip_address_t _lcl, * lcl = &_lcl;
248 locator_t * l, * rmt = 0;
252 rmt_ls = pool_elt_at_index(lcm->locator_set_pool, rmt_map->locator_set_index);
253 lcl_ls = pool_elt_at_index(lcm->locator_set_pool, lcl_map->locator_set_index);
255 if (!rmt_ls || vec_len(rmt_ls->locator_indices) == 0)
262 /* find unvisited remote locator with best priority */
263 for (i = 0; i < vec_len(rmt_ls->locator_indices); i++)
265 if (0 != hash_get(checked, i))
268 li = vec_elt(rmt_ls->locator_indices, i);
269 l = pool_elt_at_index(lcm->locator_pool, li);
271 /* we don't support non-IP locators for now */
272 if (gid_address_type(&l->address) != GID_ADDR_IP_PREFIX)
275 if (l->priority < minp && l->priority >= limitp)
282 /* check if a local locator with a route to remote locator exists */
285 esi = ip_fib_get_egress_iface_for_dst (
286 lcm, &gid_address_ip(&rmt->address));
290 for (i = 0; i < vec_len(lcl_ls->locator_indices); i++)
292 li = vec_elt (lcl_ls->locator_indices, i);
293 locator_t * sl = pool_elt_at_index (lcm->locator_pool, li);
295 /* found local locator */
296 if (sl->sw_if_index == esi)
298 if (0 == ip_interface_get_first_ip_address (lcm,
300 gid_address_ip_version(&rmt->address), lcl))
303 memset(&pair, 0, sizeof(pair));
304 ip_address_copy(&pair.rmt_loc, &gid_address_ip(&rmt->address));
305 ip_address_copy(&pair.lcl_loc, lcl);
306 vec_add1(locator_pairs[0], pair);
311 /* skip this remote locator in next searches */
313 hash_set(checked, check_index, 1);
319 return (done == 2) ? 1 : 0;
323 dp_add_fwd_entry (lisp_cp_main_t* lcm, u32 src_map_index, u32 dst_map_index)
325 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, * a = &_a;
326 mapping_t * src_map, * dst_map;
328 uword * feip = 0, * dpid;
332 memset (a, 0, sizeof(*a));
334 /* remove entry if it already exists */
335 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
337 dp_del_fwd_entry (lcm, src_map_index, dst_map_index);
339 src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index);
340 dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index);
342 /* insert data plane forwarding entry */
345 gid_address_copy (&a->rmt_eid, &dst_map->eid);
346 a->vni = gid_address_vni(&a->rmt_eid);
348 /* get vrf or bd_index associated to vni */
349 type = gid_address_type(&dst_map->eid);
350 if (GID_ADDR_IP_PREFIX == type)
352 dpid = hash_get(lcm->table_id_by_vni, a->vni);
355 clib_warning("vni %d not associated to a vrf!", a->vni);
358 a->table_id = dpid[0];
360 else if (GID_ADDR_MAC == type)
362 dpid = hash_get(lcm->bd_id_by_vni, a->vni);
365 clib_warning("vni %d not associated to a bridge domain !", a->vni);
371 /* find best locator pair that 1) verifies LISP policy 2) are connected */
372 if (0 == get_locator_pair (lcm, src_map, dst_map, &a->locator_pairs))
376 a->action = dst_map->action;
380 u8 ipver = ip_prefix_version(&gid_address_ippref(&a->rmt_eid));
381 a->decap_next_index = (ipver == IP4) ?
382 LISP_GPE_INPUT_NEXT_IP4_INPUT : LISP_GPE_INPUT_NEXT_IP6_INPUT;
384 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
386 /* add tunnel to fwd entry table XXX check return value from DP insertion */
387 pool_get (lcm->fwd_entry_pool, fe);
388 fe->locator_pairs = a->locator_pairs;
389 gid_address_copy (&fe->deid, &a->rmt_eid);
390 hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
391 fe - lcm->fwd_entry_pool);
395 * Add/remove mapping to/from map-cache. Overwriting not allowed.
398 vnet_lisp_map_cache_add_del (vnet_lisp_add_del_mapping_args_t * a,
399 u32 * map_index_result)
401 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
402 u32 mi, * map_indexp, map_index, i;
403 mapping_t * m, * old_map;
406 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->eid);
407 old_map = mi != ~0 ? pool_elt_at_index (lcm->mapping_pool, mi) : 0;
410 /* TODO check if overwriting and take appropriate actions */
411 if (mi != GID_LOOKUP_MISS && !gid_address_cmp (&old_map->eid,
414 clib_warning ("eid %U found in the eid-table", format_gid_address,
416 return VNET_API_ERROR_VALUE_EXIST;
419 pool_get(lcm->mapping_pool, m);
420 gid_address_copy (&m->eid, &a->eid);
421 m->locator_set_index = a->locator_set_index;
423 m->action = a->action;
426 map_index = m - lcm->mapping_pool;
427 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, map_index,
430 if (pool_is_free_index(lcm->locator_set_pool, a->locator_set_index))
432 clib_warning("Locator set with index %d doesn't exist",
433 a->locator_set_index);
434 return VNET_API_ERROR_INVALID_VALUE;
437 /* add eid to list of eids supported by locator-set */
438 vec_validate (lcm->locator_set_to_eids, a->locator_set_index);
439 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids,
440 a->locator_set_index);
441 vec_add1(eid_indexes[0], map_index);
446 vec_add1(lcm->local_mappings_indexes, map_index);
448 map_index_result[0] = map_index;
452 if (mi == GID_LOOKUP_MISS)
454 clib_warning("eid %U not found in the eid-table", format_gid_address,
456 return VNET_API_ERROR_INVALID_VALUE;
459 /* clear locator-set to eids binding */
460 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids,
461 a->locator_set_index);
462 for (i = 0; i < vec_len(eid_indexes[0]); i++)
464 map_indexp = vec_elt_at_index(eid_indexes[0], i);
465 if (map_indexp[0] == mi)
468 vec_del1(eid_indexes[0], i);
470 /* remove local mark if needed */
471 m = pool_elt_at_index(lcm->mapping_pool, mi);
475 for (k = 0; k < vec_len(lcm->local_mappings_indexes); k++)
477 lm_indexp = vec_elt_at_index(lcm->local_mappings_indexes, k);
478 if (lm_indexp[0] == mi)
481 vec_del1(lcm->local_mappings_indexes, k);
484 /* remove mapping from dictionary */
485 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, 0, 0);
486 gid_address_free (&m->eid);
487 pool_put_index (lcm->mapping_pool, mi);
494 * Add/update/delete mapping to/in/from map-cache.
497 vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a,
498 u32 * map_index_result)
500 uword * dp_table = 0;
504 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
506 if (vnet_lisp_enable_disable_status () == 0)
508 clib_warning ("LISP is disabled!");
509 return VNET_API_ERROR_LISP_DISABLED;
512 vni = gid_address_vni(&a->eid);
513 type = gid_address_type(&a->eid);
514 if (GID_ADDR_IP_PREFIX == type)
515 dp_table = hash_get(lcm->table_id_by_vni, vni);
516 else if (GID_ADDR_MAC == type)
517 dp_table = hash_get(lcm->bd_id_by_vni, vni);
521 clib_warning("vni %d not associated to a %s!", vni,
522 GID_ADDR_IP_PREFIX == type ? "vrf" : "bd");
523 return VNET_API_ERROR_INVALID_VALUE;
526 /* store/remove mapping from map-cache */
527 return vnet_lisp_map_cache_add_del (a, map_index_result);
530 static clib_error_t *
531 lisp_add_del_local_eid_command_fn (vlib_main_t * vm, unformat_input_t * input,
532 vlib_cli_command_t * cmd)
534 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
535 unformat_input_t _line_input, * line_input = &_line_input;
538 gid_address_t * eids = 0;
539 clib_error_t * error = 0;
540 u8 * locator_set_name = 0;
541 u32 locator_set_index = 0, map_index = 0;
543 vnet_lisp_add_del_mapping_args_t _a, * a = &_a;
547 memset (&eid, 0, sizeof (eid));
548 memset (a, 0, sizeof (*a));
550 /* Get a line of input. */
551 if (! unformat_user (input, unformat_line_input, line_input))
554 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
556 if (unformat (line_input, "add"))
558 else if (unformat (line_input, "del"))
560 else if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
562 else if (unformat (line_input, "vni %d", &vni))
563 gid_address_vni (&eid) = vni;
564 else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name))
566 p = hash_get_mem(lcm->locator_set_index_by_name, locator_set_name);
569 error = clib_error_return(0, "locator-set %s doesn't exist",
573 locator_set_index = p[0];
577 error = unformat_parse_error(line_input);
581 /* XXX treat batch configuration */
583 if (GID_ADDR_SRC_DST == gid_address_type(&eid))
585 error = clib_error_return(0, "src/dst is not supported for local EIDs!");
589 gid_address_copy(&a->eid, &eid);
591 a->locator_set_index = locator_set_index;
594 rv = vnet_lisp_add_del_local_mapping (a, &map_index);
597 error = clib_error_return(0, "failed to %s local mapping!",
598 is_add ? "add" : "delete");
602 if (locator_set_name)
603 vec_free (locator_set_name);
604 gid_address_free (&a->eid);
608 VLIB_CLI_COMMAND (lisp_add_del_local_eid_command) = {
609 .path = "lisp eid-table",
610 .short_help = "lisp eid-table add/del [vni <vni>] eid <eid> "
611 "locator-set <locator-set>",
612 .function = lisp_add_del_local_eid_command_fn,
616 vnet_lisp_eid_table_map (u32 vni, u32 dp_id, u8 is_l2, u8 is_add)
618 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
619 uword * dp_idp, * vnip, ** dp_table_by_vni, ** vni_by_dp_table;
621 if (vnet_lisp_enable_disable_status () == 0)
623 clib_warning ("LISP is disabled!");
627 dp_table_by_vni = is_l2 ? &lcm->bd_id_by_vni : &lcm->table_id_by_vni;
628 vni_by_dp_table = is_l2 ? &lcm->vni_by_bd_id : &lcm->vni_by_table_id;
630 if (!is_l2 && (vni == 0 || dp_id == 0))
632 clib_warning ("can't add/del default vni-vrf mapping!");
636 dp_idp = hash_get (dp_table_by_vni[0], vni);
637 vnip = hash_get (vni_by_dp_table[0], dp_id);
643 clib_warning ("vni %d or vrf %d already used in vrf/vni "
644 "mapping!", vni, dp_id);
647 hash_set (dp_table_by_vni[0], vni, dp_id);
648 hash_set (vni_by_dp_table[0], dp_id, vni);
650 /* create dp iface */
651 dp_add_del_iface (lcm, vni, is_l2, 1);
655 if (!dp_idp || !vnip)
657 clib_warning ("vni %d or vrf %d not used in any vrf/vni! "
658 "mapping!", vni, dp_id);
661 hash_unset (dp_table_by_vni[0], vni);
662 hash_unset (vni_by_dp_table[0], dp_id);
664 /* remove dp iface */
665 dp_add_del_iface (lcm, vni, is_l2, 0);
671 static clib_error_t *
672 lisp_eid_table_map_command_fn (vlib_main_t * vm,
673 unformat_input_t * input,
674 vlib_cli_command_t * cmd)
676 u8 is_add = 1, is_l2 = 0;
677 u32 vni = 0, dp_id = 0;
678 unformat_input_t _line_input, * line_input = &_line_input;
680 /* Get a line of input. */
681 if (! unformat_user (input, unformat_line_input, line_input))
684 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
686 if (unformat (line_input, "del"))
688 else if (unformat (line_input, "vni %d", &vni))
690 else if (unformat (line_input, "vrf %d", &dp_id))
692 else if (unformat (line_input, "bd %d", &dp_id))
696 return unformat_parse_error (line_input);
699 vnet_lisp_eid_table_map (vni, dp_id, is_l2, is_add);
703 VLIB_CLI_COMMAND (lisp_eid_table_map_command) = {
704 .path = "lisp eid-table map",
705 .short_help = "lisp eid-table map [del] vni <vni> vrf <vrf> | bd <bdi>",
706 .function = lisp_eid_table_map_command_fn,
710 /* return 0 if the two locator sets are identical 1 otherwise */
712 compare_locators (lisp_cp_main_t *lcm, u32 * old_ls_indexes,
713 locator_t * new_locators)
716 locator_t * old_loc, * new_loc;
718 if (vec_len (old_ls_indexes) != vec_len(new_locators))
721 for (i = 0; i < vec_len(new_locators); i++)
723 old_li = vec_elt(old_ls_indexes, i);
724 old_loc = pool_elt_at_index(lcm->locator_pool, old_li);
726 new_loc = vec_elt_at_index(new_locators, i);
728 if (locator_cmp (old_loc, new_loc))
735 * Adds/removes/updates mapping. Does not program forwarding.
737 * @param eid end-host identifier
738 * @param rlocs vector of remote locators
739 * @param action action for negative map-reply
740 * @param is_add add mapping if non-zero, delete otherwise
741 * @param res_map_index the map-index that was created/updated/removed. It is
742 * set to ~0 if no action is taken.
743 * @return return code
746 vnet_lisp_add_del_mapping (gid_address_t * eid, locator_t * rlocs, u8 action,
747 u8 authoritative, u32 ttl, u8 is_add,
750 vnet_lisp_add_del_mapping_args_t _m_args, * m_args = &_m_args;
751 vnet_lisp_add_del_locator_set_args_t _ls_args, * ls_args = &_ls_args;
752 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
753 u32 mi, ls_index = 0, dst_map_index;
756 if (vnet_lisp_enable_disable_status() == 0)
758 clib_warning ("LISP is disabled!");
759 return VNET_API_ERROR_LISP_DISABLED;
763 res_map_index[0] = ~0;
765 memset (m_args, 0, sizeof (m_args[0]));
766 memset (ls_args, 0, sizeof (ls_args[0]));
768 ls_args->locators = rlocs;
770 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, eid);
771 old_map = ((u32) ~0 != mi) ? pool_elt_at_index(lcm->mapping_pool, mi) : 0;
775 /* overwrite: if mapping already exists, decide if locators should be
776 * updated and be done */
777 if (old_map && gid_address_cmp (&old_map->eid, eid) == 0)
779 locator_set_t * old_ls;
781 /* update mapping attributes */
782 old_map->action = action;
783 old_map->authoritative = authoritative;
786 old_ls = pool_elt_at_index(lcm->locator_set_pool,
787 old_map->locator_set_index);
788 if (compare_locators (lcm, old_ls->locator_indices,
791 /* set locator-set index to overwrite */
793 ls_args->index = old_map->locator_set_index;
794 vnet_lisp_add_del_locator_set (ls_args, 0);
796 res_map_index[0] = mi;
805 vnet_lisp_add_del_locator_set (ls_args, &ls_index);
808 gid_address_copy (&m_args->eid, eid);
810 m_args->action = action;
811 m_args->locator_set_index = ls_index;
812 vnet_lisp_map_cache_add_del (m_args, &dst_map_index);
815 res_map_index[0] = dst_map_index;
820 if (old_map == 0 || gid_address_cmp (&old_map->eid, eid) != 0)
822 clib_warning("cannot delete mapping for eid %U", format_gid_address,
828 gid_address_copy (&m_args->eid, eid);
829 m_args->locator_set_index = old_map->locator_set_index;
831 /* delete mapping associated from map-cache */
832 vnet_lisp_map_cache_add_del (m_args, 0);
835 ls_args->index = old_map->locator_set_index;
836 /* delete locator set */
837 vnet_lisp_add_del_locator_set (ls_args, 0);
839 /* return old mapping index */
841 res_map_index[0] = mi;
849 vnet_lisp_clear_all_remote_adjacencies (void)
852 u32 mi, * map_indices = 0, * map_indexp;
853 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
854 vnet_lisp_add_del_mapping_args_t _dm_args, * dm_args = &_dm_args;
855 vnet_lisp_add_del_locator_set_args_t _ls, * ls = &_ls;
857 pool_foreach_index (mi, lcm->mapping_pool,
859 vec_add1 (map_indices, mi);
862 vec_foreach (map_indexp, map_indices)
864 mapping_t * map = pool_elt_at_index (lcm->mapping_pool, map_indexp[0]);
867 dp_del_fwd_entry (lcm, 0, map_indexp[0]);
870 gid_address_copy (&dm_args->eid, &map->eid);
871 dm_args->locator_set_index = map->locator_set_index;
873 /* delete mapping associated to fwd entry */
874 vnet_lisp_map_cache_add_del (dm_args, 0);
878 ls->index = map->locator_set_index;
879 /* delete locator set */
880 rv = vnet_lisp_add_del_locator_set (ls, 0);
888 vec_free (map_indices);
893 * Adds adjacency or removes forwarding entry associated to remote mapping.
894 * Note that adjacencies are not stored, they only result in forwarding entries
898 lisp_add_del_adjacency (lisp_cp_main_t * lcm, gid_address_t * local_eid,
899 gid_address_t * remote_eid, u8 is_add)
901 u32 local_mi, remote_mi = ~0;
903 if (vnet_lisp_enable_disable_status () == 0)
905 clib_warning ("LISP is disabled!");
906 return VNET_API_ERROR_LISP_DISABLED;
909 remote_mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, remote_eid);
910 if (GID_LOOKUP_MISS == remote_mi)
912 clib_warning("Remote eid %U not found. Cannot add adjacency!",
913 format_gid_address, remote_eid);
920 /* TODO 1) check if src/dst 2) once we have src/dst working, use it in
923 /* check if source eid has an associated mapping. If pitr mode is on,
924 * just use the pitr's mapping */
925 local_mi = lcm->lisp_pitr ? lcm->pitr_map_index :
926 gid_dictionary_lookup (&lcm->mapping_index_by_gid, local_eid);
929 if (GID_LOOKUP_MISS == local_mi)
931 clib_warning("Local eid %U not found. Cannot add adjacency!",
932 format_gid_address, local_eid);
937 /* update forwarding */
938 dp_add_fwd_entry (lcm, local_mi, remote_mi);
941 dp_del_fwd_entry (lcm, 0, remote_mi);
947 vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a)
949 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
950 return lisp_add_del_adjacency(lcm, &a->seid, &a->deid, a->is_add);
954 * Handler for add/del remote mapping CLI.
956 * @param vm vlib context
957 * @param input input from user
959 * @return pointer to clib error structure
961 static clib_error_t *
962 lisp_add_del_remote_mapping_command_fn (vlib_main_t * vm,
963 unformat_input_t * input,
964 vlib_cli_command_t * cmd)
966 clib_error_t * error = 0;
967 unformat_input_t _line_input, * line_input = &_line_input;
968 u8 is_add = 1, del_all = 0;
969 locator_t rloc, * rlocs = 0, * curr_rloc = 0;
972 u32 vni, action = ~0, p, w;
975 /* Get a line of input. */
976 if (! unformat_user (input, unformat_line_input, line_input))
979 memset(&eid, 0, sizeof(eid));
980 memset(&rloc, 0, sizeof(rloc));
982 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
984 if (unformat (line_input, "del-all"))
986 else if (unformat (line_input, "del"))
988 else if (unformat (line_input, "add"))
990 else if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
992 else if (unformat (line_input, "vni %u", &vni))
994 gid_address_vni (&eid) = vni;
996 else if (unformat (line_input, "p %d w %d", &p, &w))
1000 clib_warning ("No RLOC configured for setting priority/weight!");
1003 curr_rloc->priority = p;
1004 curr_rloc->weight = w;
1006 else if (unformat (line_input, "rloc %U", unformat_ip_address,
1007 &gid_address_ip(&rloc.address)))
1009 vec_add1 (rlocs, rloc);
1010 curr_rloc = &rlocs[vec_len (rlocs) - 1];
1012 else if (unformat (line_input, "action %U",
1013 unformat_negative_mapping_action, &action))
1017 clib_warning ("parse error");
1024 clib_warning ("missing eid!");
1030 if (is_add && (~0 == action)
1031 && 0 == vec_len (rlocs))
1033 clib_warning ("no action set for negative map-reply!");
1039 vnet_lisp_clear_all_remote_adjacencies ();
1043 /* TODO build src/dst with seid*/
1045 /* if it's a delete, clean forwarding */
1048 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1049 rv = lisp_add_del_adjacency (lcm, 0, &eid, /* is_add */ 0);
1056 /* add as static remote mapping, i.e., not authoritative and infinite
1058 rv = vnet_lisp_add_del_mapping (&eid, rlocs, action, 0, ~0, is_add, 0);
1061 clib_warning("failed to %s remote mapping!", is_add ? "add" : "delete");
1065 unformat_free (line_input);
1069 VLIB_CLI_COMMAND (lisp_add_del_remote_mapping_command) = {
1070 .path = "lisp remote-mapping",
1071 .short_help = "lisp remote-mapping add|del [del-all] vni <vni> "
1072 "eid <est-eid> [action <no-action|natively-forward|"
1073 "send-map-request|drop>] rloc <dst-locator> p <prio> w <weight> "
1074 "[rloc <dst-locator> ... ]",
1075 .function = lisp_add_del_remote_mapping_command_fn,
1079 * Handler for add/del adjacency CLI.
1081 static clib_error_t *
1082 lisp_add_del_adjacency_command_fn (vlib_main_t * vm, unformat_input_t * input,
1083 vlib_cli_command_t * cmd)
1085 clib_error_t * error = 0;
1086 unformat_input_t _line_input, * line_input = &_line_input;
1087 vnet_lisp_add_del_adjacency_args_t _a, * a = &_a;
1089 locator_t rloc, * rlocs = 0;
1090 ip_prefix_t * deid_ippref, * seid_ippref;
1091 gid_address_t seid, deid;
1092 u8 * dmac = gid_address_mac (&deid);
1093 u8 * smac = gid_address_mac (&seid);
1094 u8 deid_set = 0, seid_set = 0;
1096 u32 vni, action = ~0;
1099 /* Get a line of input. */
1100 if (! unformat_user (input, unformat_line_input, line_input))
1103 memset(&deid, 0, sizeof(deid));
1104 memset(&seid, 0, sizeof(seid));
1105 memset(&rloc, 0, sizeof(rloc));
1107 seid_ippref = &gid_address_ippref(&seid);
1108 deid_ippref = &gid_address_ippref(&deid);
1110 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1112 if (unformat (line_input, "del"))
1114 else if (unformat (line_input, "add"))
1116 else if (unformat (line_input, "deid %U",
1117 unformat_ip_prefix, deid_ippref))
1119 gid_address_type (&deid) = GID_ADDR_IP_PREFIX;
1122 else if (unformat (line_input, "deid %U",
1123 unformat_mac_address, dmac))
1125 gid_address_type (&deid) = GID_ADDR_MAC;
1128 else if (unformat (line_input, "vni %u", &vni))
1130 gid_address_vni (&seid) = vni;
1131 gid_address_vni (&deid) = vni;
1133 else if (unformat (line_input, "seid %U",
1134 unformat_ip_prefix, seid_ippref))
1136 gid_address_type (&seid) = GID_ADDR_IP_PREFIX;
1139 else if (unformat (line_input, "seid %U",
1140 unformat_mac_address, smac))
1142 gid_address_type (&seid) = GID_ADDR_MAC;
1147 clib_warning ("parse error");
1154 clib_warning ("missing deid!");
1158 if (GID_ADDR_IP_PREFIX == gid_address_type (&deid))
1160 /* if seid not set, make sure the ip version is the same as that
1161 * of the deid. This ensures the seid to be configured will be
1162 * either 0/0 or ::/0 */
1164 ip_prefix_version(seid_ippref) = ip_prefix_version(deid_ippref);
1167 (ip_prefix_version (deid_ippref)
1168 != ip_prefix_version(seid_ippref)))
1170 clib_warning ("source and destination EIDs are not"
1171 " in the same IP family!");
1176 if (is_add && (~0 == action)
1177 && 0 == vec_len (rlocs))
1179 clib_warning ("no action set for negative map-reply!");
1183 memset(a, 0, sizeof(a[0]));
1184 gid_address_copy (&a->seid, &deid);
1185 gid_address_copy (&a->deid, &seid);
1188 rv = vnet_lisp_add_del_adjacency (a);
1191 clib_warning("failed to %s adjacency!", is_add ? "add" : "delete");
1194 unformat_free (line_input);
1200 VLIB_CLI_COMMAND (lisp_add_del_adjacency_command) = {
1201 .path = "lisp adjacency",
1202 .short_help = "lisp adjacency add|del vni <vni>"
1203 "deid <dest-eid> seid <src-eid> [action <no-action|natively-forward|"
1204 "send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
1205 .function = lisp_add_del_adjacency_command_fn,
1209 static clib_error_t *
1210 lisp_show_map_resolvers_command_fn (vlib_main_t * vm,
1211 unformat_input_t * input,
1212 vlib_cli_command_t * cmd)
1214 ip_address_t * addr;
1215 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1217 vec_foreach (addr, lcm->map_resolvers)
1219 vlib_cli_output (vm, "%U", format_ip_address, addr);
1224 VLIB_CLI_COMMAND (lisp_show_map_resolvers_command) = {
1225 .path = "show lisp map-resolvers",
1226 .short_help = "show lisp map-resolvers",
1227 .function = lisp_show_map_resolvers_command_fn,
1231 vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add)
1233 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1234 u32 locator_set_index = ~0;
1238 if (vnet_lisp_enable_disable_status () == 0)
1240 clib_warning ("LISP is disabled!");
1241 return VNET_API_ERROR_LISP_DISABLED;
1244 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
1247 clib_warning ("locator-set %v doesn't exist", locator_set_name);
1250 locator_set_index = p[0];
1254 pool_get (lcm->mapping_pool, m);
1255 m->locator_set_index = locator_set_index;
1257 lcm->pitr_map_index = m - lcm->mapping_pool;
1259 /* enable pitr mode */
1264 /* remove pitr mapping */
1265 pool_put_index (lcm->mapping_pool, lcm->pitr_map_index);
1267 /* disable pitr mode */
1273 static clib_error_t *
1274 lisp_pitr_set_locator_set_command_fn (vlib_main_t * vm,
1275 unformat_input_t * input,
1276 vlib_cli_command_t * cmd)
1278 u8 locator_name_set = 0;
1279 u8 * locator_set_name = 0;
1281 unformat_input_t _line_input, * line_input = &_line_input;
1282 clib_error_t * error = 0;
1285 /* Get a line of input. */
1286 if (! unformat_user (input, unformat_line_input, line_input))
1289 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1291 if (unformat (line_input, "ls %_%v%_", &locator_set_name))
1292 locator_name_set = 1;
1293 else if (unformat (line_input, "disable"))
1296 return clib_error_return (0, "parse error");
1299 if (!locator_name_set)
1301 clib_warning ("No locator set specified!");
1304 rv = vnet_lisp_pitr_set_locator_set (locator_set_name, is_add);
1307 error = clib_error_return(0, "failed to %s pitr!",
1308 is_add ? "add" : "delete");
1312 if (locator_set_name)
1313 vec_free (locator_set_name);
1317 VLIB_CLI_COMMAND (lisp_pitr_set_locator_set_command) = {
1318 .path = "lisp pitr",
1319 .short_help = "lisp pitr [disable] ls <locator-set-name>",
1320 .function = lisp_pitr_set_locator_set_command_fn,
1323 static clib_error_t *
1324 lisp_show_pitr_command_fn (vlib_main_t * vm,
1325 unformat_input_t * input,
1326 vlib_cli_command_t * cmd)
1328 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1333 vlib_cli_output (vm, "%=20s%=16s",
1334 "pitr", lcm->lisp_pitr ? "locator-set" : "");
1336 if (!lcm->lisp_pitr) {
1337 vlib_cli_output (vm, "%=20s", "disable");
1341 if (~0 == lcm->pitr_map_index) {
1342 tmp_str = format(0, "N/A");
1344 m = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
1345 if (~0 != m->locator_set_index) {
1346 ls = pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index);
1347 tmp_str = format(0, "%s", ls->name);
1349 tmp_str = format(0, "N/A");
1352 vec_add1(tmp_str, 0);
1354 vlib_cli_output (vm, "%=20s%=16s",
1362 VLIB_CLI_COMMAND (lisp_show_pitr_command) = {
1363 .path = "show lisp pitr",
1364 .short_help = "Show pitr",
1365 .function = lisp_show_pitr_command_fn,
1369 format_eid_entry (u8 * s, va_list * args)
1371 vnet_main_t * vnm = va_arg (*args, vnet_main_t *);
1372 lisp_cp_main_t * lcm = va_arg (*args, lisp_cp_main_t *);
1373 mapping_t * mapit = va_arg (*args, mapping_t *);
1374 locator_set_t * ls = va_arg (*args, locator_set_t *);
1375 gid_address_t * gid = &mapit->eid;
1376 u32 ttl = mapit->ttl;
1377 u8 aut = mapit->authoritative;
1382 u8 * type = ls->local ? format(0, "local(%s)", ls->name)
1383 : format(0, "remote");
1385 if (vec_len (ls->locator_indices) == 0)
1387 s = format (s, "%-35U%-30s%-20u%-u", format_gid_address, gid,
1392 vec_foreach (loc_index, ls->locator_indices)
1394 locator_t * l = pool_elt_at_index (lcm->locator_pool, loc_index[0]);
1396 loc = format (0, "%U", format_vnet_sw_if_index_name, vnm,
1399 loc = format (0, "%U", format_ip_address,
1400 &gid_address_ip (&l->address));
1404 s = format (s, "%-35U%-20s%-30v%-20u%-u\n", format_gid_address,
1405 gid, type, loc, ttl, aut);
1409 s = format (s, "%55s%v\n", "", loc);
1415 static clib_error_t *
1416 lisp_show_eid_table_command_fn (vlib_main_t * vm,
1417 unformat_input_t * input,
1418 vlib_cli_command_t * cmd)
1420 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1422 unformat_input_t _line_input, * line_input = &_line_input;
1428 memset (&eid, 0, sizeof(eid));
1430 /* Get a line of input. */
1431 if (!unformat_user (input, unformat_line_input, line_input))
1434 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1436 if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
1438 else if (unformat (line_input, "local"))
1440 else if (unformat(line_input, "remote"))
1443 return clib_error_return (0, "parse error: '%U'",
1444 format_unformat_error, line_input);
1447 vlib_cli_output (vm, "%-35s%-20s%-30s%-20s%-s",
1448 "EID", "type", "locators", "ttl", "autoritative");
1452 pool_foreach (mapit, lcm->mapping_pool,
1454 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1455 mapit->locator_set_index);
1456 if (filter && !((1 == filter && ls->local) ||
1457 (2 == filter && !ls->local)))
1461 vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
1467 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &eid);
1471 mapit = pool_elt_at_index (lcm->mapping_pool, mi);
1472 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1473 mapit->locator_set_index);
1475 if (filter && !((1 == filter && ls->local) ||
1476 (2 == filter && !ls->local)))
1481 vlib_cli_output (vm, "%U,", format_eid_entry, lcm->vnet_main,
1488 VLIB_CLI_COMMAND (lisp_cp_show_eid_table_command) = {
1489 .path = "show lisp eid-table",
1490 .short_help = "Shows EID table",
1491 .function = lisp_show_eid_table_command_fn,
1494 /* cleans locator to locator-set data and removes locators not part of
1495 * any locator-set */
1497 clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi)
1499 u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes, *to_be_deleted = 0;
1500 locator_set_t * ls = pool_elt_at_index(lcm->locator_set_pool, lsi);
1501 for (i = 0; i < vec_len(ls->locator_indices); i++)
1503 loc_indexp = vec_elt_at_index(ls->locator_indices, i);
1504 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1506 for (j = 0; j < vec_len(ls_indexes[0]); j++)
1508 ls_indexp = vec_elt_at_index(ls_indexes[0], j);
1509 if (ls_indexp[0] == lsi)
1513 /* delete index for removed locator-set*/
1514 vec_del1(ls_indexes[0], j);
1516 /* delete locator if it's part of no locator-set */
1517 if (vec_len (ls_indexes[0]) == 0)
1519 pool_put_index (lcm->locator_pool, loc_indexp[0]);
1520 vec_add1 (to_be_deleted, i);
1526 for (i = 0; i < vec_len (to_be_deleted); i++)
1528 loc_indexp = vec_elt_at_index (to_be_deleted, i);
1529 vec_del1 (ls->locator_indices, loc_indexp[0]);
1531 vec_free (to_be_deleted);
1535 static inline uword *
1536 get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p)
1538 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1543 /* find locator-set */
1546 p = hash_get_mem(lcm->locator_set_index_by_name, a->name);
1557 is_locator_in_locator_set (lisp_cp_main_t * lcm, locator_set_t * ls,
1564 ASSERT(loc != NULL);
1566 vec_foreach(locit, ls->locator_indices)
1568 itloc = pool_elt_at_index(lcm->locator_pool, locit[0]);
1569 if ((ls->local && itloc->sw_if_index == loc->sw_if_index) ||
1570 (!ls->local && !gid_address_cmp(&itloc->address, &loc->address)))
1572 clib_warning("Duplicate locator");
1573 return VNET_API_ERROR_VALUE_EXIST;
1581 remove_locator_from_locator_set (locator_set_t * ls, u32 * locit, u32 ls_index,
1584 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1585 u32 ** ls_indexes = NULL;
1588 ASSERT(locit != NULL);
1590 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1592 pool_put_index(lcm->locator_pool, locit[0]);
1593 vec_del1(ls->locator_indices, loc_id);
1594 vec_del1(ls_indexes[0], ls_index);
1598 vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a,
1599 locator_set_t * ls, u32 * ls_result)
1601 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1602 locator_t * loc = NULL, *itloc = NULL;
1603 uword _p = (u32)~0, * p = &_p;
1604 u32 loc_index = ~0, ls_index = ~0, * locit = NULL, ** ls_indexes = NULL;
1610 if (vnet_lisp_enable_disable_status () == 0)
1612 clib_warning ("LISP is disabled!");
1613 return VNET_API_ERROR_LISP_DISABLED;
1616 p = get_locator_set_index(a, p);
1619 clib_warning("locator-set %v doesn't exist", a->name);
1620 return VNET_API_ERROR_INVALID_ARGUMENT;
1625 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1628 clib_warning("locator-set %d to be overwritten doesn't exist!",
1630 return VNET_API_ERROR_INVALID_ARGUMENT;
1638 ls_result[0] = p[0];
1640 /* allocate locators */
1641 vec_foreach (itloc, a->locators)
1643 ret = is_locator_in_locator_set(lcm, ls, itloc);
1649 pool_get(lcm->locator_pool, loc);
1651 loc_index = loc - lcm->locator_pool;
1653 vec_add1(ls->locator_indices, loc_index);
1655 vec_validate (lcm->locator_to_locator_sets, loc_index);
1656 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1658 vec_add1(ls_indexes[0], ls_index);
1665 itloc = a->locators;
1667 vec_foreach (locit, ls->locator_indices)
1669 loc = pool_elt_at_index(lcm->locator_pool, locit[0]);
1671 if (loc->local && loc->sw_if_index == itloc->sw_if_index)
1673 remove_locator_from_locator_set(ls, locit,
1676 if (0 == loc->local &&
1677 !gid_address_cmp(&loc->address, &itloc->address))
1679 remove_locator_from_locator_set(ls, locit,
1691 vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
1694 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1696 uword _p = (u32)~0, * p = &_p;
1701 if (vnet_lisp_enable_disable_status () == 0)
1703 clib_warning ("LISP is disabled!");
1704 return VNET_API_ERROR_LISP_DISABLED;
1709 p = get_locator_set_index(a, p);
1712 if (p && p[0] != (u32)~0)
1714 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1717 clib_warning("locator-set %d to be overwritten doesn't exist!",
1722 /* clean locator to locator-set vectors and remove locators if
1723 * they're not part of another locator-set */
1724 clean_locator_to_locator_set (lcm, p[0]);
1726 /* remove locator indices from locator set */
1727 vec_free(ls->locator_indices);
1732 ls_result[0] = p[0];
1734 /* new locator-set */
1737 pool_get(lcm->locator_set_pool, ls);
1738 memset(ls, 0, sizeof(*ls));
1739 ls_index = ls - lcm->locator_set_pool;
1743 ls->name = vec_dup(a->name);
1745 if (!lcm->locator_set_index_by_name)
1746 lcm->locator_set_index_by_name = hash_create_vec(
1747 /* size */0, sizeof(ls->name[0]), sizeof(uword));
1748 hash_set_mem(lcm->locator_set_index_by_name, ls->name, ls_index);
1750 /* mark as local locator-set */
1751 vec_add1(lcm->local_locator_set_indexes, ls_index);
1753 ls->local = a->local;
1755 ls_result[0] = ls_index;
1758 ret = vnet_lisp_add_del_locator(a, ls, NULL);
1766 p = get_locator_set_index(a, p);
1769 clib_warning("locator-set %v doesn't exists", a->name);
1773 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1776 clib_warning("locator-set with index %d doesn't exists", p[0]);
1780 if (lcm->mreq_itr_rlocs == p[0])
1782 clib_warning ("Can't delete the locator-set used to constrain "
1783 "the itr-rlocs in map-requests!");
1787 if (vec_len(lcm->locator_set_to_eids) != 0)
1789 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, p[0]);
1790 if (vec_len(eid_indexes[0]) != 0)
1792 clib_warning ("Can't delete a locator that supports a mapping!");
1797 /* clean locator to locator-sets data */
1798 clean_locator_to_locator_set (lcm, p[0]);
1804 vec_foreach_index(it, lcm->local_locator_set_indexes)
1806 lsi = vec_elt(lcm->local_locator_set_indexes, it);
1809 vec_del1(lcm->local_locator_set_indexes, it);
1813 hash_unset_mem(lcm->locator_set_index_by_name, ls->name);
1816 vec_free(ls->locator_indices);
1817 pool_put(lcm->locator_set_pool, ls);
1823 vnet_lisp_enable_disable (u8 is_enable)
1826 clib_error_t * error = 0;
1827 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1828 vnet_lisp_gpe_enable_disable_args_t _a, * a = &_a;
1830 a->is_en = is_enable;
1831 error = vnet_lisp_gpe_enable_disable (a);
1834 return clib_error_return (0, "failed to %s data-plane!",
1835 a->is_en ? "enable" : "disable");
1840 /* enable all l2 and l3 ifaces */
1841 hash_foreach(vni, dp_table, lcm->table_id_by_vni, ({
1842 dp_add_del_iface(lcm, vni, 0, 1);
1845 hash_foreach(vni, dp_table, lcm->bd_id_by_vni, ({
1846 dp_add_del_iface(lcm, vni, /* is_l2 */ 1, 1);
1851 /* clear interface table */
1852 hash_free(lcm->dp_intf_by_vni);
1853 hash_free(lcm->fwd_entry_by_mapping_index);
1854 pool_free(lcm->fwd_entry_pool);
1857 /* update global flag */
1858 lcm->is_enabled = is_enable;
1863 static clib_error_t *
1864 lisp_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input,
1865 vlib_cli_command_t * cmd)
1867 unformat_input_t _line_input, * line_input = &_line_input;
1871 /* Get a line of input. */
1872 if (! unformat_user (input, unformat_line_input, line_input))
1875 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1877 if (unformat (line_input, "enable"))
1882 else if (unformat (line_input, "disable"))
1886 return clib_error_return (0, "parse error: '%U'",
1887 format_unformat_error, line_input);
1892 return clib_error_return (0, "state not set");
1894 return vnet_lisp_enable_disable (is_enabled);
1897 VLIB_CLI_COMMAND (lisp_cp_enable_disable_command) = {
1899 .short_help = "lisp [enable|disable]",
1900 .function = lisp_enable_disable_command_fn,
1904 vnet_lisp_enable_disable_status (void)
1906 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1907 return lcm->is_enabled;
1911 format_lisp_status (u8 * s, va_list * args)
1913 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1914 return format (s, "%s", lcm->is_enabled ? "enabled" : "disabled");
1917 static clib_error_t *
1918 lisp_show_status_command_fn (vlib_main_t * vm, unformat_input_t * input,
1919 vlib_cli_command_t * cmd)
1922 msg = format (msg, "feature: %U\ngpe: %U\n",
1923 format_lisp_status, format_vnet_lisp_gpe_status);
1924 vlib_cli_output (vm, "%v", msg);
1929 VLIB_CLI_COMMAND (lisp_show_status_command) = {
1930 .path = "show lisp status",
1931 .short_help = "show lisp status",
1932 .function = lisp_show_status_command_fn,
1935 static clib_error_t *
1936 lisp_show_eid_table_map_command_fn (vlib_main_t * vm, unformat_input_t * input,
1937 vlib_cli_command_t * cmd)
1940 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1942 vlib_cli_output (vm, "%=10s%=10s", "VNI", "VRF");
1943 hash_foreach_pair (p, lcm->table_id_by_vni,
1945 vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
1950 VLIB_CLI_COMMAND (lisp_show_eid_table_map_command) = {
1951 .path = "show lisp eid-table map",
1952 .short_help = "show lisp eid-table vni to vrf mappings",
1953 .function = lisp_show_eid_table_map_command_fn,
1956 static clib_error_t *
1957 lisp_add_del_locator_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
1958 vlib_cli_command_t * cmd)
1960 lisp_gpe_main_t * lgm = &lisp_gpe_main;
1961 vnet_main_t * vnm = lgm->vnet_main;
1962 unformat_input_t _line_input, * line_input = &_line_input;
1964 clib_error_t * error = 0;
1965 u8 * locator_set_name = 0;
1966 locator_t locator, * locators = 0;
1967 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
1971 memset(&locator, 0, sizeof(locator));
1972 memset(a, 0, sizeof(a[0]));
1974 /* Get a line of input. */
1975 if (! unformat_user (input, unformat_line_input, line_input))
1978 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1980 if (unformat (line_input, "add %_%v%_", &locator_set_name))
1982 else if (unformat (line_input, "del %_%v%_", &locator_set_name))
1984 else if (unformat (line_input, "iface %U p %d w %d",
1985 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
1986 &locator.priority, &locator.weight))
1989 vec_add1(locators, locator);
1993 error = unformat_parse_error(line_input);
1998 a->name = locator_set_name;
1999 a->locators = locators;
2003 rv = vnet_lisp_add_del_locator_set(a, &ls_index);
2006 error = clib_error_return(0, "failed to %s locator-set!",
2007 is_add ? "add" : "delete");
2012 if (locator_set_name)
2013 vec_free (locator_set_name);
2017 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_set_command) = {
2018 .path = "lisp locator-set",
2019 .short_help = "lisp locator-set add/del <name> [iface <iface-name> "
2020 "p <priority> w <weight>]",
2021 .function = lisp_add_del_locator_set_command_fn,
2024 static clib_error_t *
2025 lisp_add_del_locator_in_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
2026 vlib_cli_command_t * cmd)
2028 lisp_gpe_main_t * lgm = &lisp_gpe_main;
2029 vnet_main_t * vnm = lgm->vnet_main;
2030 unformat_input_t _line_input, * line_input = &_line_input;
2032 clib_error_t * error = 0;
2033 u8 * locator_set_name = 0;
2034 u8 locator_set_name_set = 0;
2035 locator_t locator, * locators = 0;
2036 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
2039 memset(&locator, 0, sizeof(locator));
2040 memset(a, 0, sizeof(a[0]));
2042 /* Get a line of input. */
2043 if (! unformat_user (input, unformat_line_input, line_input))
2046 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2048 if (unformat (line_input, "add"))
2050 else if (unformat (line_input, "del"))
2052 else if (unformat(line_input, "locator-set %_%v%_", &locator_set_name))
2053 locator_set_name_set = 1;
2054 else if (unformat (line_input, "iface %U p %d w %d",
2055 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
2056 &locator.priority, &locator.weight))
2059 vec_add1(locators, locator);
2063 error = unformat_parse_error(line_input);
2068 if (!locator_set_name_set)
2070 error = clib_error_return(0, "locator_set name not set!");
2074 a->name = locator_set_name;
2075 a->locators = locators;
2079 vnet_lisp_add_del_locator(a, 0, &ls_index);
2083 vec_free (locator_set_name);
2087 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_in_set_command) = {
2088 .path = "lisp locator",
2089 .short_help = "lisp locator add/del locator-set <name> iface <iface-name> "
2090 "p <priority> w <weight>",
2091 .function = lisp_add_del_locator_in_set_command_fn,
2094 static clib_error_t *
2095 lisp_cp_show_locator_sets_command_fn (vlib_main_t * vm,
2096 unformat_input_t * input,
2097 vlib_cli_command_t * cmd)
2099 locator_set_t * lsit;
2102 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2104 vlib_cli_output (vm, "%=20s%=16s%=16s%=16s", "Locator-set", "Locator",
2105 "Priority", "Weight");
2106 pool_foreach (lsit, lcm->locator_set_pool,
2112 msg = format (msg, "%=16v", lsit->name);
2116 msg = format (msg, "%=16s", "remote");
2118 vec_foreach (locit, lsit->locator_indices)
2122 msg = format (msg, "%16s", " ");
2124 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
2126 msg = format (msg, "%16d%16d%16d\n", loc->sw_if_index, loc->priority,
2129 msg = format (msg, "%16U%16d%16d\n", format_ip_address,
2130 &gid_address_ip(&loc->address), loc->priority,
2134 vlib_cli_output (vm, "%v", msg);
2140 VLIB_CLI_COMMAND (lisp_cp_show_locator_sets_command) = {
2141 .path = "show lisp locator-set",
2142 .short_help = "Shows locator-sets",
2143 .function = lisp_cp_show_locator_sets_command_fn,
2147 vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
2149 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2150 ip_address_t * addr;
2153 if (vnet_lisp_enable_disable_status () == 0)
2155 clib_warning ("LISP is disabled!");
2156 return VNET_API_ERROR_LISP_DISABLED;
2161 vec_foreach(addr, lcm->map_resolvers)
2163 if (!ip_address_cmp (addr, &a->address))
2165 clib_warning("map-resolver %U already exists!", format_ip_address,
2170 vec_add1(lcm->map_resolvers, a->address);
2174 for (i = 0; i < vec_len(lcm->map_resolvers); i++)
2176 addr = vec_elt_at_index(lcm->map_resolvers, i);
2177 if (!ip_address_cmp (addr, &a->address))
2179 vec_delete(lcm->map_resolvers, 1, i);
2187 static clib_error_t *
2188 lisp_add_del_map_resolver_command_fn (vlib_main_t * vm,
2189 unformat_input_t * input,
2190 vlib_cli_command_t * cmd)
2192 unformat_input_t _line_input, * line_input = &_line_input;
2193 u8 is_add = 1, addr_set = 0;
2194 ip_address_t ip_addr;
2195 clib_error_t * error = 0;
2197 vnet_lisp_add_del_map_resolver_args_t _a, * a = &_a;
2199 /* Get a line of input. */
2200 if (! unformat_user (input, unformat_line_input, line_input))
2203 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2205 if (unformat (line_input, "add"))
2207 else if (unformat (line_input, "del"))
2209 else if (unformat (line_input, "%U", unformat_ip_address, &ip_addr))
2213 error = unformat_parse_error(line_input);
2220 error = clib_error_return(0, "Map-resolver address must be set!");
2225 a->address = ip_addr;
2226 rv = vnet_lisp_add_del_map_resolver (a);
2229 error = clib_error_return(0, "failed to %s map-resolver!",
2230 is_add ? "add" : "delete");
2237 VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = {
2238 .path = "lisp map-resolver",
2239 .short_help = "lisp map-resolver add/del <ip_address>",
2240 .function = lisp_add_del_map_resolver_command_fn,
2244 vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a)
2246 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2249 if (vnet_lisp_enable_disable_status () == 0)
2251 clib_warning("LISP is disabled!");
2252 return VNET_API_ERROR_LISP_DISABLED;
2257 p = hash_get_mem(lcm->locator_set_index_by_name, a->locator_set_name);
2260 clib_warning("locator-set %v doesn't exist", a->locator_set_name);
2261 return VNET_API_ERROR_INVALID_ARGUMENT;
2264 lcm->mreq_itr_rlocs = p[0];
2268 lcm->mreq_itr_rlocs = ~0;
2274 static clib_error_t *
2275 lisp_add_del_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2276 unformat_input_t * input,
2277 vlib_cli_command_t * cmd)
2279 unformat_input_t _line_input, * line_input = &_line_input;
2281 u8 * locator_set_name = 0;
2282 clib_error_t * error = 0;
2284 vnet_lisp_add_del_mreq_itr_rloc_args_t _a, * a = &_a;
2286 /* Get a line of input. */
2287 if (! unformat_user (input, unformat_line_input, line_input))
2290 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2292 if (unformat (line_input, "del"))
2294 else if (unformat (line_input, "add %s", &locator_set_name))
2298 error = unformat_parse_error(line_input);
2304 a->locator_set_name = locator_set_name;
2305 rv = vnet_lisp_add_del_mreq_itr_rlocs (a);
2308 error = clib_error_return(0, "failed to %s map-request itr-rlocs!",
2309 is_add ? "add" : "delete");
2312 vec_free(locator_set_name);
2319 VLIB_CLI_COMMAND (lisp_add_del_map_request_command) = {
2320 .path = "lisp map-request itr-rlocs",
2321 .short_help = "lisp map-request itr-rlocs add/del <locator_set_name>",
2322 .function = lisp_add_del_mreq_itr_rlocs_command_fn,
2325 static clib_error_t *
2326 lisp_show_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2327 unformat_input_t * input,
2328 vlib_cli_command_t * cmd)
2330 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2331 locator_set_t * loc_set;
2333 vlib_cli_output (vm, "%=20s", "itr-rlocs");
2335 if (~0 == lcm->mreq_itr_rlocs)
2340 loc_set = pool_elt_at_index (lcm->locator_set_pool, lcm->mreq_itr_rlocs);
2342 vlib_cli_output (vm, "%=20s", loc_set->name);
2347 VLIB_CLI_COMMAND (lisp_show_map_request_command) = {
2348 .path = "show lisp map-request itr-rlocs",
2349 .short_help = "Shows map-request itr-rlocs",
2350 .function = lisp_show_mreq_itr_rlocs_command_fn,
2353 /* Statistics (not really errors) */
2354 #define foreach_lisp_cp_lookup_error \
2356 _(MAP_REQUESTS_SENT, "map-request sent")
2358 static char * lisp_cp_lookup_error_strings[] = {
2359 #define _(sym,string) string,
2360 foreach_lisp_cp_lookup_error
2366 #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
2367 foreach_lisp_cp_lookup_error
2369 LISP_CP_LOOKUP_N_ERROR,
2370 } lisp_cp_lookup_error_t;
2374 LISP_CP_LOOKUP_NEXT_DROP,
2375 LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
2376 LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
2377 LISP_CP_LOOKUP_N_NEXT,
2378 } lisp_cp_lookup_next_t;
2382 gid_address_t dst_eid;
2383 ip_address_t map_resolver_ip;
2384 } lisp_cp_lookup_trace_t;
2387 format_lisp_cp_lookup_trace (u8 * s, va_list * args)
2389 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2390 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2391 lisp_cp_lookup_trace_t * t = va_arg (*args, lisp_cp_lookup_trace_t *);
2393 s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
2394 format_ip_address, &t->map_resolver_ip, format_gid_address,
2400 get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip,
2401 ip_address_t * sloc)
2403 ip_address_t * mrit;
2405 if (vec_len(lcm->map_resolvers) == 0)
2407 clib_warning("No map-resolver configured");
2411 /* find the first mr ip we have a route to and the ip of the
2412 * iface that has a route to it */
2413 vec_foreach(mrit, lcm->map_resolvers)
2415 if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, mrit, sloc)) {
2416 ip_address_copy(mr_ip, mrit);
2421 clib_warning("Can't find map-resolver and local interface ip!");
2425 static gid_address_t *
2426 build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
2432 ip_interface_address_t * ia = 0;
2433 gid_address_t gid_data, * gid = &gid_data;
2434 gid_address_t * rlocs = 0;
2435 ip_prefix_t * ippref = &gid_address_ippref (gid);
2436 ip_address_t * rloc = &ip_prefix_addr (ippref);
2438 memset (gid, 0, sizeof (gid[0]));
2439 gid_address_type (gid) = GID_ADDR_IP_PREFIX;
2440 for (i = 0; i < vec_len(loc_set->locator_indices); i++)
2442 loc_indexp = vec_elt_at_index(loc_set->locator_indices, i);
2443 loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
2445 /* Add ipv4 locators first TODO sort them */
2446 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
2447 loc->sw_if_index, 1 /* unnumbered */,
2449 addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
2450 ip_address_set (rloc, addr, IP4);
2451 ip_prefix_len (ippref) = 32;
2452 ip_prefix_normalize (ippref);
2453 vec_add1 (rlocs, gid[0]);
2456 /* Add ipv6 locators */
2457 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
2458 loc->sw_if_index, 1 /* unnumbered */,
2460 addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
2461 ip_address_set (rloc, addr, IP6);
2462 ip_prefix_len (ippref) = 128;
2463 ip_prefix_normalize (ippref);
2464 vec_add1 (rlocs, gid[0]);
2470 static vlib_buffer_t *
2471 build_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
2472 gid_address_t * seid, gid_address_t * deid,
2473 locator_set_t * loc_set, ip_address_t * mr_ip,
2474 ip_address_t * sloc, u8 is_smr_invoked,
2475 u64 *nonce_res, u32 * bi_res)
2479 gid_address_t * rlocs = 0;
2481 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
2483 clib_warning ("Can't allocate buffer for Map-Request!");
2487 b = vlib_get_buffer (vm, bi);
2489 /* leave some space for the encap headers */
2490 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
2493 rlocs = build_itr_rloc_list (lcm, loc_set);
2496 lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, nonce_res);
2498 /* push ecm: udp-ip-lisp */
2499 lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid);
2501 /* push outer ip header */
2502 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc,
2512 send_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
2513 gid_address_t * seid, gid_address_t * deid,
2516 u32 next_index, bi = 0, * to_next, map_index;
2520 locator_set_t * loc_set;
2522 pending_map_request_t * pmr;
2523 ip_address_t mr_ip, sloc;
2526 /* get locator-set for seid */
2527 if (!lcm->lisp_pitr)
2529 map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
2530 if (map_index == ~0)
2532 clib_warning("No local mapping found in eid-table for %U!",
2533 format_gid_address, seid);
2537 map = pool_elt_at_index (lcm->mapping_pool, map_index);
2541 clib_warning("Mapping found for src eid %U is not marked as local!",
2542 format_gid_address, seid);
2545 ls_index = map->locator_set_index;
2549 map_index = lcm->pitr_map_index;
2550 map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
2551 ls_index = map->locator_set_index;
2554 /* overwrite locator set if map-request itr-rlocs configured */
2555 if (~0 != lcm->mreq_itr_rlocs)
2557 ls_index = lcm->mreq_itr_rlocs;
2560 loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index);
2562 /* get local iface ip to use in map-request */
2563 if (0 == get_mr_and_local_iface_ip (lcm, &mr_ip, &sloc))
2566 /* build the encapsulated map request */
2567 b = build_encapsulated_map_request (vm, lcm, seid, deid, loc_set, &mr_ip,
2568 &sloc, is_smr_invoked, &nonce, &bi);
2573 /* set fib index to default and lookup node */
2574 vnet_buffer(b)->sw_if_index[VLIB_TX] = 0;
2575 next_index = (ip_addr_version(&mr_ip) == IP4) ?
2576 ip4_lookup_node.index : ip6_lookup_node.index;
2578 f = vlib_get_frame_to_node (vm, next_index);
2580 /* Enqueue the packet */
2581 to_next = vlib_frame_vector_args (f);
2584 vlib_put_frame_to_node (vm, next_index, f);
2586 /* add map-request to pending requests table */
2587 pool_get(lcm->pending_map_requests_pool, pmr);
2588 gid_address_copy (&pmr->src, seid);
2589 gid_address_copy (&pmr->dst, deid);
2590 hash_set(lcm->pending_map_requests_by_nonce, nonce,
2591 pmr - lcm->pending_map_requests_pool);
2595 get_src_and_dst_ip (void *hdr, ip_address_t * src, ip_address_t *dst)
2597 ip4_header_t * ip4 = hdr;
2600 if ((ip4->ip_version_and_header_length & 0xF0) == 0x40)
2602 ip_address_set(src, &ip4->src_address, IP4);
2603 ip_address_set(dst, &ip4->dst_address, IP4);
2608 ip_address_set(src, &ip6->src_address, IP6);
2609 ip_address_set(dst, &ip6->dst_address, IP6);
2614 lisp_get_vni_from_buffer_ip (lisp_cp_main_t * lcm, vlib_buffer_t * b,
2618 u32 vni = ~0, table_id = ~0, fib_index;
2623 ip4_main_t * im4 = &ip4_main;
2624 fib_index = vec_elt (im4->fib_index_by_sw_if_index,
2625 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2626 fib = find_ip4_fib_by_table_index_or_id (im4, fib_index,
2627 IP4_ROUTE_FLAG_FIB_INDEX);
2628 table_id = fib->table_id;
2633 ip6_main_t * im6 = &ip6_main;
2634 fib_index = vec_elt (im6->fib_index_by_sw_if_index,
2635 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2636 fib = find_ip6_fib_by_table_index_or_id (im6, fib_index,
2637 IP6_ROUTE_FLAG_FIB_INDEX);
2638 table_id = fib->table_id;
2641 vnip = hash_get (lcm->vni_by_table_id, table_id);
2645 clib_warning ("vrf %d is not mapped to any vni!", table_id);
2651 lisp_get_vni_from_buffer_eth (lisp_cp_main_t * lcm, vlib_buffer_t * b)
2657 l2input_main_t * l2im = &l2input_main;
2658 l2_input_config_t * config;
2659 l2_bridge_domain_t * bd_config;
2661 sw_if_index0 = vnet_buffer(b)->sw_if_index[VLIB_RX];
2662 config = vec_elt_at_index(l2im->configs, sw_if_index0);
2663 bd_config = vec_elt_at_index (l2im->bd_configs, config->bd_index);
2665 vnip = hash_get (lcm->vni_by_bd_id, bd_config->bd_id);
2669 clib_warning("bridge domain %d is not mapped to any vni!",
2676 get_src_and_dst_eids_from_buffer (lisp_cp_main_t *lcm, vlib_buffer_t * b,
2677 gid_address_t * src, gid_address_t * dst)
2682 type = vnet_buffer(b)->lisp.overlay_afi;
2684 if (LISP_AFI_IP == type || LISP_AFI_IP6 == type)
2687 u8 version, preflen;
2689 gid_address_type(src) = GID_ADDR_IP_PREFIX;
2690 gid_address_type(dst) = GID_ADDR_IP_PREFIX;
2692 ip = vlib_buffer_get_current (b);
2693 get_src_and_dst_ip (ip, &gid_address_ip(src), &gid_address_ip(dst));
2695 version = gid_address_ip_version(src);
2696 preflen = ip_address_max_len (version);
2697 gid_address_ippref_len(src) = preflen;
2698 gid_address_ippref_len(dst) = preflen;
2700 vni = lisp_get_vni_from_buffer_ip (lcm, b, version);
2701 gid_address_vni (dst) = vni;
2702 gid_address_vni (src) = vni;
2704 else if (LISP_AFI_MAC == type)
2706 ethernet_header_t * eh;
2708 eh = vlib_buffer_get_current (b);
2710 gid_address_type(src) = GID_ADDR_MAC;
2711 gid_address_type(dst) = GID_ADDR_MAC;
2712 mac_copy(&gid_address_mac(src), eh->src_address);
2713 mac_copy(&gid_address_mac(dst), eh->dst_address);
2716 vni = lisp_get_vni_from_buffer_eth (lcm, b);
2718 gid_address_vni (dst) = vni;
2719 gid_address_vni (src) = vni;
2724 lisp_cp_lookup (vlib_main_t * vm, vlib_node_runtime_t * node,
2725 vlib_frame_t * from_frame)
2727 u32 * from, * to_next_drop, di, si;
2728 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main();
2729 u32 pkts_mapped = 0;
2730 uword n_left_from, n_left_to_next_drop;
2732 from = vlib_frame_vector_args (from_frame);
2733 n_left_from = from_frame->n_vectors;
2735 while (n_left_from > 0)
2737 vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
2738 to_next_drop, n_left_to_next_drop);
2740 while (n_left_from > 0 && n_left_to_next_drop > 0)
2744 gid_address_t src, dst;
2749 to_next_drop[0] = pi0;
2751 n_left_to_next_drop -= 1;
2753 b0 = vlib_get_buffer (vm, pi0);
2754 b0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
2756 /* src/dst eid pair */
2757 get_src_and_dst_eids_from_buffer (lcm, b0, &src, &dst);
2759 /* if we have remote mapping for destination already in map-chache
2760 add forwarding tunnel directly. If not send a map-request */
2761 di = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst);
2764 mapping_t * m = vec_elt_at_index (lcm->mapping_pool, di);
2765 /* send a map-request also in case of negative mapping entry
2766 with corresponding action */
2767 if (m->action == LISP_SEND_MAP_REQUEST)
2769 /* send map-request */
2770 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
2775 si = gid_dictionary_lookup (&lcm->mapping_index_by_gid,
2779 dp_add_fwd_entry (lcm, si, di);
2785 /* send map-request */
2786 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
2790 if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
2792 lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, b0,
2795 memset(tr, 0, sizeof(*tr));
2796 gid_address_copy (&tr->dst_eid, &dst);
2797 if (vec_len(lcm->map_resolvers) > 0)
2799 clib_memcpy (&tr->map_resolver_ip,
2800 vec_elt_at_index(lcm->map_resolvers, 0),
2801 sizeof(ip_address_t));
2804 gid_address_free (&dst);
2805 gid_address_free (&src);
2808 vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP, n_left_to_next_drop);
2810 vlib_node_increment_counter (vm, node->node_index,
2811 LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
2813 return from_frame->n_vectors;
2816 VLIB_REGISTER_NODE (lisp_cp_lookup_node) = {
2817 .function = lisp_cp_lookup,
2818 .name = "lisp-cp-lookup",
2819 .vector_size = sizeof (u32),
2820 .format_trace = format_lisp_cp_lookup_trace,
2821 .type = VLIB_NODE_TYPE_INTERNAL,
2823 .n_errors = LISP_CP_LOOKUP_N_ERROR,
2824 .error_strings = lisp_cp_lookup_error_strings,
2826 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
2829 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
2830 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
2831 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
2835 /* lisp_cp_input statistics */
2836 #define foreach_lisp_cp_input_error \
2838 _(MAP_REPLIES_RECEIVED, "map-replies received")
2840 static char * lisp_cp_input_error_strings[] = {
2841 #define _(sym,string) string,
2842 foreach_lisp_cp_input_error
2848 #define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
2849 foreach_lisp_cp_input_error
2851 LISP_CP_INPUT_N_ERROR,
2852 } lisp_cp_input_error_t;
2856 LISP_CP_INPUT_NEXT_DROP,
2857 LISP_CP_INPUT_N_NEXT,
2858 } lisp_cp_input_next_t;
2862 gid_address_t dst_eid;
2863 ip4_address_t map_resolver_ip;
2864 } lisp_cp_input_trace_t;
2867 format_lisp_cp_input_trace (u8 * s, va_list * args)
2869 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2870 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2871 CLIB_UNUSED(lisp_cp_input_trace_t * t) = va_arg (*args, lisp_cp_input_trace_t *);
2873 s = format (s, "LISP-CP-INPUT: TODO");
2878 process_map_reply (lisp_cp_main_t * lcm, vlib_buffer_t * b)
2880 u32 len = 0, i, ttl, dst_map_index = 0;
2882 pending_map_request_t * pmr;
2884 map_reply_hdr_t * mrep_hdr;
2888 u8 authoritative, action;
2889 locator_t * locators = 0, * loc;
2891 mrep_hdr = vlib_buffer_get_current (b);
2893 /* Check pending requests table and nonce */
2894 nonce = MREP_NONCE(mrep_hdr);
2895 pmr_index = hash_get(lcm->pending_map_requests_by_nonce, nonce);
2898 clib_warning("No pending map-request entry with nonce %lu!", nonce);
2901 pmr = pool_elt_at_index(lcm->pending_map_requests_pool, pmr_index[0]);
2903 vlib_buffer_pull (b, sizeof(*mrep_hdr));
2905 for (i = 0; i < MREP_REC_COUNT(mrep_hdr); i++)
2908 h = vlib_buffer_get_current (b);
2909 ttl = clib_net_to_host_u32 (MAP_REC_TTL(h));
2910 action = MAP_REC_ACTION(h);
2911 authoritative = MAP_REC_AUTH(h);
2913 len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed);
2916 clib_warning ("Failed to parse mapping record!");
2917 vec_foreach (loc, locators)
2925 /* insert/update mappings cache */
2926 vnet_lisp_add_del_mapping (&deid, locators, action, authoritative, ttl, 1,
2929 /* try to program forwarding only if mapping saved or updated*/
2930 if ((u32) ~0 != dst_map_index)
2931 lisp_add_del_adjacency (lcm, &pmr->src, &deid, 1);
2936 /* remove pending map request entry */
2937 hash_unset(lcm->pending_map_requests_by_nonce, nonce);
2938 pool_put(lcm->pending_map_requests_pool, pmr);
2942 process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm, vlib_buffer_t * b)
2944 map_request_hdr_t * mreq_hdr;
2945 gid_address_t src, dst;
2948 gid_address_t * itr_rlocs = 0, * rloc;
2950 mreq_hdr = vlib_buffer_get_current (b);
2951 vlib_buffer_pull (b, sizeof(*mreq_hdr));
2953 // nonce = MREQ_NONCE(mreq_hdr);
2955 if (!MREQ_SMR(mreq_hdr)) {
2956 clib_warning("Only SMR Map-Requests supported for now!");
2961 len = lisp_msg_parse_addr (b, &src);
2965 /* for now we don't do anything with the itr's rlocs */
2966 len = lisp_msg_parse_itr_rlocs (b, &itr_rlocs, MREQ_ITR_RLOC_COUNT(mreq_hdr) + 1);
2970 /* TODO: RLOCs are currently unused, so free them for now */
2971 vec_foreach (rloc, itr_rlocs)
2973 gid_address_free (rloc);
2976 /* parse eid records and send SMR-invoked map-requests */
2977 for (i = 0; i < MREQ_REC_COUNT(mreq_hdr); i++)
2979 memset(&dst, 0, sizeof(dst));
2980 len = lisp_msg_parse_eid_rec (b, &dst);
2983 clib_warning("Can't parse map-request EID-record");
2986 /* send SMR-invoked map-requests */
2987 send_encapsulated_map_request (vm, lcm, &dst, &src, /* invoked */ 1);
2992 lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
2993 vlib_frame_t * from_frame)
2995 u32 n_left_from, * from, * to_next_drop;
2996 lisp_msg_type_e type;
2997 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2999 from = vlib_frame_vector_args (from_frame);
3000 n_left_from = from_frame->n_vectors;
3003 while (n_left_from > 0)
3005 u32 n_left_to_next_drop;
3007 vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
3008 to_next_drop, n_left_to_next_drop);
3009 while (n_left_from > 0 && n_left_to_next_drop > 0)
3017 to_next_drop[0] = bi0;
3019 n_left_to_next_drop -= 1;
3021 b0 = vlib_get_buffer (vm, bi0);
3023 type = lisp_msg_type(vlib_buffer_get_current (b0));
3026 case LISP_MAP_REPLY:
3027 process_map_reply (lcm, b0);
3029 case LISP_MAP_REQUEST:
3030 process_map_request(vm, lcm, b0);
3033 clib_warning("Unsupported LISP message type %d", type);
3037 b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP];
3039 if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
3045 vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP, n_left_to_next_drop);
3047 return from_frame->n_vectors;
3050 VLIB_REGISTER_NODE (lisp_cp_input_node) = {
3051 .function = lisp_cp_input,
3052 .name = "lisp-cp-input",
3053 .vector_size = sizeof (u32),
3054 .format_trace = format_lisp_cp_input_trace,
3055 .type = VLIB_NODE_TYPE_INTERNAL,
3057 .n_errors = LISP_CP_INPUT_N_ERROR,
3058 .error_strings = lisp_cp_input_error_strings,
3060 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
3063 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
3068 lisp_cp_init (vlib_main_t *vm)
3070 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
3071 clib_error_t * error = 0;
3073 if ((error = vlib_call_init_function (vm, lisp_gpe_init)))
3076 lcm->im4 = &ip4_main;
3077 lcm->im6 = &ip6_main;
3078 lcm->vlib_main = vm;
3079 lcm->vnet_main = vnet_get_main();
3080 lcm->mreq_itr_rlocs = ~0;
3083 gid_dictionary_init (&lcm->mapping_index_by_gid);
3085 /* default vrf mapped to vni 0 */
3086 hash_set(lcm->table_id_by_vni, 0, 0);
3087 hash_set(lcm->vni_by_table_id, 0, 0);
3089 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp,
3090 lisp_cp_input_node.index, 1 /* is_ip4 */);
3091 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6,
3092 lisp_cp_input_node.index, 0 /* is_ip4 */);
3097 VLIB_INIT_FUNCTION(lisp_cp_init);