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 any 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 deid destination EID
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 * @return return code
702 vnet_lisp_add_del_mapping (gid_address_t * deid, locator_t * rlocs, u8 action,
703 u8 authoritative, u32 ttl, u8 is_add,
706 vnet_lisp_add_del_mapping_args_t _m_args, * m_args = &_m_args;
707 vnet_lisp_add_del_locator_set_args_t _ls_args, * ls_args = &_ls_args;
708 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
709 u32 mi, ls_index = 0, dst_map_index;
712 if (vnet_lisp_enable_disable_status() == 0)
714 clib_warning ("LISP is disabled!");
715 return VNET_API_ERROR_LISP_DISABLED;
719 res_map_index[0] = ~0;
721 memset (m_args, 0, sizeof (m_args[0]));
722 memset (ls_args, 0, sizeof (ls_args[0]));
724 ls_args->locators = rlocs;
726 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, deid);
727 old_map = ((u32) ~0 != mi) ? pool_elt_at_index(lcm->mapping_pool, mi) : 0;
731 /* overwrite: if mapping already exists, decide if locators should be
732 * updated and be done */
733 if (old_map && gid_address_cmp (&old_map->eid, deid) == 0)
735 locator_set_t * old_ls;
737 /* update mapping attributes */
738 old_map->action = action;
739 old_map->authoritative = authoritative;
742 old_ls = pool_elt_at_index(lcm->locator_set_pool,
743 old_map->locator_set_index);
744 if (compare_locators (lcm, old_ls->locator_indices,
747 /* set locator-set index to overwrite */
749 ls_args->index = old_map->locator_set_index;
750 vnet_lisp_add_del_locator_set (ls_args, 0);
752 res_map_index[0] = mi;
761 vnet_lisp_add_del_locator_set (ls_args, &ls_index);
764 gid_address_copy (&m_args->eid, deid);
766 m_args->action = action;
767 m_args->locator_set_index = ls_index;
768 vnet_lisp_map_cache_add_del (m_args, &dst_map_index);
771 res_map_index[0] = dst_map_index;
776 if (old_map == 0 || gid_address_cmp (&old_map->eid, deid) != 0)
778 clib_warning("cannot delete mapping for eid %U", format_gid_address,
784 gid_address_copy (&m_args->eid, deid);
785 m_args->locator_set_index = old_map->locator_set_index;
787 /* delete mapping associated from map-cache */
788 vnet_lisp_map_cache_add_del (m_args, 0);
791 ls_args->index = old_map->locator_set_index;
792 /* delete locator set */
793 vnet_lisp_add_del_locator_set (ls_args, 0);
795 /* return old mapping index */
796 res_map_index[0] = mi;
804 vnet_lisp_clear_all_remote_adjacencies (void)
807 u32 mi, * map_indices = 0, * map_indexp;
808 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
809 vnet_lisp_add_del_mapping_args_t _dm_args, * dm_args = &_dm_args;
810 vnet_lisp_add_del_locator_set_args_t _ls, * ls = &_ls;
812 pool_foreach_index (mi, lcm->mapping_pool,
814 vec_add1 (map_indices, mi);
817 vec_foreach (map_indexp, map_indices)
819 mapping_t * map = pool_elt_at_index (lcm->mapping_pool, map_indexp[0]);
822 dp_del_fwd_entry (lcm, 0, map_indexp[0]);
825 gid_address_copy (&dm_args->eid, &map->eid);
826 dm_args->locator_set_index = map->locator_set_index;
828 /* delete mapping associated to fwd entry */
829 vnet_lisp_map_cache_add_del (dm_args, 0);
833 ls->index = map->locator_set_index;
834 /* delete locator set */
835 rv = vnet_lisp_add_del_locator_set (ls, 0);
843 vec_free (map_indices);
848 * Adds remote mapping and sets it as adjacency for local eid or removes
849 * forwarding entry associated to remote mapping. Note that adjacencies
850 * are not stored, they only result in forwarding entries being created.
853 lisp_add_del_adjacency (lisp_cp_main_t * lcm,
854 vnet_lisp_add_del_adjacency_args_t * a)
856 u32 src_map_index, dst_map_index = ~0;
858 if (vnet_lisp_enable_disable_status () == 0)
860 clib_warning ("LISP is disabled!");
861 return VNET_API_ERROR_LISP_DISABLED;
864 /* insert/update mappings cache */
865 vnet_lisp_add_del_mapping (&a->deid, a->locators, a->action,
866 a->authoritative, a->ttl, a->is_add,
871 /* TODO 1) check if src/dst 2) once we have src/dst working, use it in
874 /* check if source eid has an associated mapping. If pitr mode is on,
875 * just use the pitr's mapping */
876 src_map_index = lcm->lisp_pitr ? lcm->pitr_map_index :
877 gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->seid);
880 if (GID_LOOKUP_MISS == src_map_index)
882 clib_warning("seid %U not found. Cannot program forwarding!",
883 format_gid_address, &a->seid);
888 /* update forwarding if a destination mapping index was found */
889 if ((u32) ~0 != dst_map_index)
890 dp_add_fwd_entry (lcm, src_map_index, dst_map_index);
893 dp_del_fwd_entry (lcm, 0, dst_map_index);
899 vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a)
901 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
902 return lisp_add_del_adjacency(lcm, a);
906 * Handler for add/del remote mapping CLI.
908 * @param vm vlib context
909 * @param input input from user
911 * @return pointer to clib error structure
913 static clib_error_t *
914 lisp_add_del_remote_mapping_command_fn (vlib_main_t * vm,
915 unformat_input_t * input,
916 vlib_cli_command_t * cmd)
918 clib_error_t * error = 0;
919 unformat_input_t _line_input, * line_input = &_line_input;
920 u8 is_add = 1, del_all = 0;
921 locator_t rloc, * rlocs = 0, * curr_rloc = 0;
922 ip_prefix_t * deid_ippref, * seid_ippref;
923 gid_address_t seid, deid;
924 u8 * dmac = gid_address_mac (&deid);
925 u8 * smac = gid_address_mac (&seid);
926 u8 deid_set = 0, seid_set = 0;
928 u32 vni, action = ~0, p, w;
931 /* Get a line of input. */
932 if (! unformat_user (input, unformat_line_input, line_input))
935 memset(&deid, 0, sizeof(deid));
936 memset(&seid, 0, sizeof(seid));
937 memset(&rloc, 0, sizeof(rloc));
939 seid_ippref = &gid_address_ippref(&seid);
940 deid_ippref = &gid_address_ippref(&deid);
942 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
944 if (unformat (line_input, "del-all"))
946 else if (unformat (line_input, "del"))
948 else if (unformat (line_input, "add"))
950 else if (unformat (line_input, "deid %U",
951 unformat_ip_prefix, deid_ippref))
953 gid_address_type (&deid) = GID_ADDR_IP_PREFIX;
956 else if (unformat (line_input, "deid %U",
957 unformat_mac_address, dmac))
959 gid_address_type (&deid) = GID_ADDR_MAC;
962 else if (unformat (line_input, "vni %u", &vni))
964 gid_address_vni (&seid) = vni;
965 gid_address_vni (&deid) = vni;
967 else if (unformat (line_input, "seid %U",
968 unformat_ip_prefix, seid_ippref))
970 gid_address_type (&seid) = GID_ADDR_IP_PREFIX;
973 else if (unformat (line_input, "seid %U",
974 unformat_mac_address, smac))
976 gid_address_type (&seid) = GID_ADDR_MAC;
979 else if (unformat (line_input, "p %d w %d", &p, &w))
983 clib_warning ("No RLOC configured for setting priority/weight!");
986 curr_rloc->priority = p;
987 curr_rloc->weight = w;
989 else if (unformat (line_input, "rloc %U", unformat_ip_address,
992 vec_add1 (rlocs, rloc);
993 curr_rloc = &rlocs[vec_len (rlocs) - 1];
995 else if (unformat (line_input, "action %s", &s))
997 if (!strcmp ((char *)s, "no-action"))
998 action = ACTION_NONE;
999 if (!strcmp ((char *)s, "natively-forward"))
1000 action = ACTION_NATIVELY_FORWARDED;
1001 if (!strcmp ((char *)s, "send-map-request"))
1002 action = ACTION_SEND_MAP_REQUEST;
1003 else if (!strcmp ((char *)s, "drop"))
1004 action = ACTION_DROP;
1007 clib_warning ("invalid action: '%s'", s);
1013 clib_warning ("parse error");
1022 clib_warning ("missing deid!");
1026 if (GID_ADDR_IP_PREFIX == gid_address_type (&deid))
1028 /* if seid not set, make sure the ip version is the same as that
1029 * of the deid. This ensures the seid to be configured will be
1030 * either 0/0 or ::/0 */
1032 ip_prefix_version(seid_ippref) = ip_prefix_version(deid_ippref);
1035 (ip_prefix_version (deid_ippref)
1036 != ip_prefix_version(seid_ippref)))
1038 clib_warning ("source and destination EIDs are not"
1039 " in the same IP family!");
1044 if (is_add && (~0 == action)
1045 && 0 == vec_len (rlocs))
1047 clib_warning ("no action set for negative map-reply!");
1053 vnet_lisp_clear_all_remote_adjacencies ();
1057 /* TODO build src/dst with seid*/
1059 /* if it's a delete, clean forwarding */
1062 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1063 vnet_lisp_add_del_adjacency_args_t _a, * a = &_a;
1064 gid_address_copy(&a->deid, &deid);
1066 rv = lisp_add_del_adjacency (lcm, a);
1070 /* add as static remote mapping, i.e., not authoritative and infinite
1072 rv = vnet_lisp_add_del_mapping (&deid, rlocs, action, 0, ~0, is_add, 0);
1076 clib_warning("failed to %s remote mapping!", is_add ? "add" : "delete");
1080 unformat_free (line_input);
1086 VLIB_CLI_COMMAND (lisp_add_del_remote_mapping_command) = {
1087 .path = "lisp remote-mapping",
1088 .short_help = "lisp remote-mapping add|del [del-all] vni <vni>"
1089 "deid <dest-eid> seid <src-eid> [action <no-action|natively-forward|"
1090 "send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
1091 .function = lisp_add_del_remote_mapping_command_fn,
1095 * Handler for add/del adjacency CLI.
1097 static clib_error_t *
1098 lisp_add_del_adjacency_command_fn (vlib_main_t * vm, unformat_input_t * input,
1099 vlib_cli_command_t * cmd)
1101 clib_error_t * error = 0;
1102 unformat_input_t _line_input, * line_input = &_line_input;
1103 vnet_lisp_add_del_adjacency_args_t _a, * a = &_a;
1105 locator_t rloc, * rlocs = 0;
1106 ip_prefix_t * deid_ippref, * seid_ippref;
1107 gid_address_t seid, deid;
1108 u8 * dmac = gid_address_mac (&deid);
1109 u8 * smac = gid_address_mac (&seid);
1110 u8 deid_set = 0, seid_set = 0;
1112 u32 vni, action = ~0;
1115 /* Get a line of input. */
1116 if (! unformat_user (input, unformat_line_input, line_input))
1119 memset(&deid, 0, sizeof(deid));
1120 memset(&seid, 0, sizeof(seid));
1121 memset(&rloc, 0, sizeof(rloc));
1123 seid_ippref = &gid_address_ippref(&seid);
1124 deid_ippref = &gid_address_ippref(&deid);
1126 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1128 if (unformat (line_input, "del"))
1130 else if (unformat (line_input, "add"))
1132 else if (unformat (line_input, "deid %U",
1133 unformat_ip_prefix, deid_ippref))
1135 gid_address_type (&deid) = GID_ADDR_IP_PREFIX;
1138 else if (unformat (line_input, "deid %U",
1139 unformat_mac_address, dmac))
1141 gid_address_type (&deid) = GID_ADDR_MAC;
1144 else if (unformat (line_input, "vni %u", &vni))
1146 gid_address_vni (&seid) = vni;
1147 gid_address_vni (&deid) = vni;
1149 else if (unformat (line_input, "seid %U",
1150 unformat_ip_prefix, seid_ippref))
1152 gid_address_type (&seid) = GID_ADDR_IP_PREFIX;
1155 else if (unformat (line_input, "seid %U",
1156 unformat_mac_address, smac))
1158 gid_address_type (&seid) = GID_ADDR_MAC;
1161 else if (unformat (line_input, "rloc %U", unformat_ip_address, &rloc.address))
1162 vec_add1 (rlocs, rloc);
1163 else if (unformat (line_input, "action %s", &s))
1165 if (!strcmp ((char *)s, "no-action"))
1166 action = ACTION_NONE;
1167 if (!strcmp ((char *)s, "natively-forward"))
1168 action = ACTION_NATIVELY_FORWARDED;
1169 if (!strcmp ((char *)s, "send-map-request"))
1170 action = ACTION_SEND_MAP_REQUEST;
1171 else if (!strcmp ((char *)s, "drop"))
1172 action = ACTION_DROP;
1175 clib_warning ("invalid action: '%s'", s);
1181 clib_warning ("parse error");
1188 clib_warning ("missing deid!");
1192 if (GID_ADDR_IP_PREFIX == gid_address_type (&deid))
1194 /* if seid not set, make sure the ip version is the same as that
1195 * of the deid. This ensures the seid to be configured will be
1196 * either 0/0 or ::/0 */
1198 ip_prefix_version(seid_ippref) = ip_prefix_version(deid_ippref);
1201 (ip_prefix_version (deid_ippref)
1202 != ip_prefix_version(seid_ippref)))
1204 clib_warning ("source and destination EIDs are not"
1205 " in the same IP family!");
1210 if (is_add && (~0 == action)
1211 && 0 == vec_len (rlocs))
1213 clib_warning ("no action set for negative map-reply!");
1217 memset(a, 0, sizeof(a[0]));
1221 /* NOTE: the remote mapping is static, i.e., not authoritative and
1222 * ttl is infinite. */
1223 a->authoritative = 0;
1226 rv = vnet_lisp_add_del_adjacency (a);
1229 clib_warning("failed to %s adjacency!", is_add ? "add" : "delete");
1232 unformat_free (line_input);
1238 VLIB_CLI_COMMAND (lisp_add_del_adjacency_command) = {
1239 .path = "lisp adjacency",
1240 .short_help = "lisp adjacency add|del vni <vni>"
1241 "deid <dest-eid> seid <src-eid> [action <no-action|natively-forward|"
1242 "send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
1243 .function = lisp_add_del_adjacency_command_fn,
1247 static clib_error_t *
1248 lisp_show_map_resolvers_command_fn (vlib_main_t * vm,
1249 unformat_input_t * input,
1250 vlib_cli_command_t * cmd)
1252 ip_address_t * addr;
1253 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1255 vec_foreach (addr, lcm->map_resolvers)
1257 vlib_cli_output (vm, "%U", format_ip_address, addr);
1262 VLIB_CLI_COMMAND (lisp_show_map_resolvers_command) = {
1263 .path = "show lisp map-resolvers",
1264 .short_help = "show lisp map-resolvers",
1265 .function = lisp_show_map_resolvers_command_fn,
1269 vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add)
1271 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1272 u32 locator_set_index = ~0;
1276 if (vnet_lisp_enable_disable_status () == 0)
1278 clib_warning ("LISP is disabled!");
1279 return VNET_API_ERROR_LISP_DISABLED;
1282 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
1285 clib_warning ("locator-set %v doesn't exist", locator_set_name);
1288 locator_set_index = p[0];
1292 pool_get (lcm->mapping_pool, m);
1293 m->locator_set_index = locator_set_index;
1295 lcm->pitr_map_index = m - lcm->mapping_pool;
1297 /* enable pitr mode */
1302 /* remove pitr mapping */
1303 pool_put_index (lcm->mapping_pool, lcm->pitr_map_index);
1305 /* disable pitr mode */
1311 static clib_error_t *
1312 lisp_pitr_set_locator_set_command_fn (vlib_main_t * vm,
1313 unformat_input_t * input,
1314 vlib_cli_command_t * cmd)
1316 u8 locator_name_set = 0;
1317 u8 * locator_set_name = 0;
1319 unformat_input_t _line_input, * line_input = &_line_input;
1320 clib_error_t * error = 0;
1323 /* Get a line of input. */
1324 if (! unformat_user (input, unformat_line_input, line_input))
1327 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1329 if (unformat (line_input, "ls %_%v%_", &locator_set_name))
1330 locator_name_set = 1;
1331 else if (unformat (line_input, "disable"))
1334 return clib_error_return (0, "parse error");
1337 if (!locator_name_set)
1339 clib_warning ("No locator set specified!");
1342 rv = vnet_lisp_pitr_set_locator_set (locator_set_name, is_add);
1345 error = clib_error_return(0, "failed to %s pitr!",
1346 is_add ? "add" : "delete");
1350 if (locator_set_name)
1351 vec_free (locator_set_name);
1355 VLIB_CLI_COMMAND (lisp_pitr_set_locator_set_command) = {
1356 .path = "lisp pitr",
1357 .short_help = "lisp pitr [disable] ls <locator-set-name>",
1358 .function = lisp_pitr_set_locator_set_command_fn,
1363 format_eid_entry (u8 * s, va_list * args)
1365 vnet_main_t * vnm = va_arg (*args, vnet_main_t *);
1366 lisp_cp_main_t * lcm = va_arg (*args, lisp_cp_main_t *);
1367 gid_address_t * gid = va_arg (*args, gid_address_t *);
1368 locator_set_t * ls = va_arg (*args, locator_set_t *);
1373 u8 * type = ls->local ? format(0, "local(%s)", ls->name)
1374 : format(0, "remote");
1376 if (vec_len (ls->locator_indices) == 0)
1378 s = format (s, "%-35U%-20s", format_gid_address, gid, type);
1382 vec_foreach (loc_index, ls->locator_indices)
1384 locator_t * l = pool_elt_at_index (lcm->locator_pool, loc_index[0]);
1386 loc = format (0, "%U", format_vnet_sw_if_index_name, vnm,
1389 loc = format (0, "%U", format_ip_address,
1390 &gid_address_ip (&l->address));
1394 s = format (s, "%-35U%-20s%-v\n", format_gid_address,
1399 s = format (s, "%55s%v\n", "", loc);
1405 static clib_error_t *
1406 lisp_show_eid_table_command_fn (vlib_main_t * vm,
1407 unformat_input_t * input,
1408 vlib_cli_command_t * cmd)
1410 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1412 unformat_input_t _line_input, * line_input = &_line_input;
1417 memset (&eid, 0, sizeof(eid));
1419 /* Get a line of input. */
1420 if (!unformat_user (input, unformat_line_input, line_input))
1423 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1425 if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
1428 return clib_error_return (0, "parse error: '%U'",
1429 format_unformat_error, line_input);
1432 vlib_cli_output (vm, "%-35s%-20s%-s", "EID", "type", "locators");
1436 pool_foreach (mapit, lcm->mapping_pool,
1438 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1439 mapit->locator_set_index);
1440 vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
1441 lcm, &mapit->eid, ls);
1446 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &eid);
1450 mapit = pool_elt_at_index (lcm->mapping_pool, mi);
1451 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1452 mapit->locator_set_index);
1453 vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
1454 lcm, &mapit->eid, ls);
1460 VLIB_CLI_COMMAND (lisp_cp_show_eid_table_command) = {
1461 .path = "show lisp eid-table",
1462 .short_help = "Shows EID table",
1463 .function = lisp_show_eid_table_command_fn,
1466 /* cleans locator to locator-set data and removes locators not part of
1467 * any locator-set */
1469 clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi)
1471 u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes, *to_be_deleted = 0;
1472 locator_set_t * ls = pool_elt_at_index(lcm->locator_set_pool, lsi);
1473 for (i = 0; i < vec_len(ls->locator_indices); i++)
1475 loc_indexp = vec_elt_at_index(ls->locator_indices, i);
1476 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1478 for (j = 0; j < vec_len(ls_indexes[0]); j++)
1480 ls_indexp = vec_elt_at_index(ls_indexes[0], j);
1481 if (ls_indexp[0] == lsi)
1485 /* delete index for removed locator-set*/
1486 vec_del1(ls_indexes[0], j);
1488 /* delete locator if it's part of no locator-set */
1489 if (vec_len (ls_indexes[0]) == 0)
1491 pool_put_index (lcm->locator_pool, loc_indexp[0]);
1492 vec_add1 (to_be_deleted, i);
1498 for (i = 0; i < vec_len (to_be_deleted); i++)
1500 loc_indexp = vec_elt_at_index (to_be_deleted, i);
1501 vec_del1 (ls->locator_indices, loc_indexp[0]);
1503 vec_free (to_be_deleted);
1507 static inline uword *
1508 get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p)
1510 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1515 /* find locator-set */
1518 p = hash_get_mem(lcm->locator_set_index_by_name, a->name);
1529 is_locator_in_locator_set (lisp_cp_main_t * lcm, locator_set_t * ls,
1536 ASSERT(loc != NULL);
1538 vec_foreach(locit, ls->locator_indices)
1540 itloc = pool_elt_at_index(lcm->locator_pool, locit[0]);
1541 if (itloc->sw_if_index == loc->sw_if_index ||
1542 !gid_address_cmp(&itloc->address, &loc->address))
1544 clib_warning("Duplicate locator");
1545 return VNET_API_ERROR_VALUE_EXIST;
1553 remove_locator_from_locator_set (locator_set_t * ls, u32 * locit, u32 ls_index,
1556 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1557 u32 ** ls_indexes = NULL;
1560 ASSERT(locit != NULL);
1562 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1564 pool_put_index(lcm->locator_pool, locit[0]);
1565 vec_del1(ls->locator_indices, loc_id);
1566 vec_del1(ls_indexes[0], ls_index);
1570 vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a,
1571 locator_set_t * ls, u32 * ls_result)
1573 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1574 locator_t * loc = NULL, *itloc = NULL;
1575 uword _p = (u32)~0, * p = &_p;
1576 u32 loc_index = ~0, ls_index = ~0, * locit = NULL, ** ls_indexes = NULL;
1582 if (vnet_lisp_enable_disable_status () == 0)
1584 clib_warning ("LISP is disabled!");
1585 return VNET_API_ERROR_LISP_DISABLED;
1588 p = get_locator_set_index(a, p);
1591 clib_warning("locator-set %v doesn't exist", a->name);
1592 return VNET_API_ERROR_INVALID_ARGUMENT;
1597 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1600 clib_warning("locator-set %d to be overwritten doesn't exist!",
1602 return VNET_API_ERROR_INVALID_ARGUMENT;
1610 ls_result[0] = p[0];
1612 /* allocate locators */
1613 vec_foreach (itloc, a->locators)
1615 ret = is_locator_in_locator_set(lcm, ls, itloc);
1621 pool_get(lcm->locator_pool, loc);
1623 loc_index = loc - lcm->locator_pool;
1625 vec_add1(ls->locator_indices, loc_index);
1627 vec_validate (lcm->locator_to_locator_sets, loc_index);
1628 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1630 vec_add1(ls_indexes[0], ls_index);
1637 itloc = a->locators;
1639 vec_foreach (locit, ls->locator_indices)
1641 loc = pool_elt_at_index(lcm->locator_pool, locit[0]);
1643 if (loc->local && loc->sw_if_index == itloc->sw_if_index)
1645 remove_locator_from_locator_set(ls, locit,
1648 if (0 == loc->local &&
1649 !gid_address_cmp(&loc->address, &itloc->address))
1651 remove_locator_from_locator_set(ls, locit,
1663 vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
1666 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1668 uword _p = (u32)~0, * p = &_p;
1673 if (vnet_lisp_enable_disable_status () == 0)
1675 clib_warning ("LISP is disabled!");
1676 return VNET_API_ERROR_LISP_DISABLED;
1681 p = get_locator_set_index(a, p);
1684 if (p && p[0] != (u32)~0)
1686 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1689 clib_warning("locator-set %d to be overwritten doesn't exist!",
1694 /* clean locator to locator-set vectors and remove locators if
1695 * they're not part of another locator-set */
1696 clean_locator_to_locator_set (lcm, p[0]);
1698 /* remove locator indices from locator set */
1699 vec_free(ls->locator_indices);
1704 ls_result[0] = p[0];
1706 /* new locator-set */
1709 pool_get(lcm->locator_set_pool, ls);
1710 memset(ls, 0, sizeof(*ls));
1711 ls_index = ls - lcm->locator_set_pool;
1715 ls->name = vec_dup(a->name);
1717 if (!lcm->locator_set_index_by_name)
1718 lcm->locator_set_index_by_name = hash_create_vec(
1719 /* size */0, sizeof(ls->name[0]), sizeof(uword));
1720 hash_set_mem(lcm->locator_set_index_by_name, ls->name, ls_index);
1722 /* mark as local locator-set */
1723 vec_add1(lcm->local_locator_set_indexes, ls_index);
1725 ls->local = a->local;
1727 ls_result[0] = ls_index;
1730 ret = vnet_lisp_add_del_locator(a, ls, NULL);
1738 p = get_locator_set_index(a, p);
1741 clib_warning("locator-set %v doesn't exists", a->name);
1745 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1748 clib_warning("locator-set with index %d doesn't exists", p[0]);
1752 if (lcm->mreq_itr_rlocs == p[0])
1754 clib_warning ("Can't delete the locator-set used to constrain "
1755 "the itr-rlocs in map-requests!");
1759 if (vec_len(lcm->locator_set_to_eids) != 0)
1761 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, p[0]);
1762 if (vec_len(eid_indexes[0]) != 0)
1764 clib_warning ("Can't delete a locator that supports a mapping!");
1769 /* clean locator to locator-sets data */
1770 clean_locator_to_locator_set (lcm, p[0]);
1776 vec_foreach_index(it, lcm->local_locator_set_indexes)
1778 lsi = vec_elt(lcm->local_locator_set_indexes, it);
1781 vec_del1(lcm->local_locator_set_indexes, it);
1785 hash_unset_mem(lcm->locator_set_index_by_name, ls->name);
1788 vec_free(ls->locator_indices);
1789 pool_put(lcm->locator_set_pool, ls);
1795 vnet_lisp_enable_disable (u8 is_enable)
1798 clib_error_t * error = 0;
1799 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1800 vnet_lisp_gpe_enable_disable_args_t _a, * a = &_a;
1802 a->is_en = is_enable;
1803 error = vnet_lisp_gpe_enable_disable (a);
1806 return clib_error_return (0, "failed to %s data-plane!",
1807 a->is_en ? "enable" : "disable");
1812 /* enable all ifaces */
1813 hash_foreach(vni, table_id, lcm->table_id_by_vni, ({
1814 dp_add_del_iface(lcm, vni, 1);
1819 /* clear interface table */
1820 hash_free(lcm->dp_intf_by_vni);
1821 hash_free(lcm->fwd_entry_by_mapping_index);
1822 pool_free(lcm->fwd_entry_pool);
1825 /* update global flag */
1826 lcm->is_enabled = is_enable;
1831 static clib_error_t *
1832 lisp_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input,
1833 vlib_cli_command_t * cmd)
1835 unformat_input_t _line_input, * line_input = &_line_input;
1839 /* Get a line of input. */
1840 if (! unformat_user (input, unformat_line_input, line_input))
1843 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1845 if (unformat (line_input, "enable"))
1850 else if (unformat (line_input, "disable"))
1854 return clib_error_return (0, "parse error: '%U'",
1855 format_unformat_error, line_input);
1860 return clib_error_return (0, "state not set");
1862 return vnet_lisp_enable_disable (is_enabled);
1865 VLIB_CLI_COMMAND (lisp_cp_enable_disable_command) = {
1867 .short_help = "lisp [enable|disable]",
1868 .function = lisp_enable_disable_command_fn,
1872 vnet_lisp_enable_disable_status (void)
1874 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1875 return lcm->is_enabled;
1879 format_lisp_status (u8 * s, va_list * args)
1881 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1882 return format (s, "%s", lcm->is_enabled ? "enabled" : "disabled");
1885 static clib_error_t *
1886 lisp_show_status_command_fn (vlib_main_t * vm, unformat_input_t * input,
1887 vlib_cli_command_t * cmd)
1890 msg = format (msg, "feature: %U\ngpe: %U\n",
1891 format_lisp_status, format_vnet_lisp_gpe_status);
1892 vlib_cli_output (vm, "%v", msg);
1897 VLIB_CLI_COMMAND (lisp_show_status_command) = {
1898 .path = "show lisp status",
1899 .short_help = "show lisp status",
1900 .function = lisp_show_status_command_fn,
1903 static clib_error_t *
1904 lisp_show_eid_table_map_command_fn (vlib_main_t * vm, unformat_input_t * input,
1905 vlib_cli_command_t * cmd)
1908 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1910 vlib_cli_output (vm, "%=10s%=10s", "VNI", "VRF");
1911 hash_foreach_pair (p, lcm->table_id_by_vni,
1913 vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
1918 VLIB_CLI_COMMAND (lisp_show_eid_table_map_command) = {
1919 .path = "show lisp eid-table map",
1920 .short_help = "show lisp eid-table vni to vrf mappings",
1921 .function = lisp_show_eid_table_map_command_fn,
1924 static clib_error_t *
1925 lisp_add_del_locator_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
1926 vlib_cli_command_t * cmd)
1928 lisp_gpe_main_t * lgm = &lisp_gpe_main;
1929 vnet_main_t * vnm = lgm->vnet_main;
1930 unformat_input_t _line_input, * line_input = &_line_input;
1932 clib_error_t * error = 0;
1933 u8 * locator_set_name = 0;
1934 locator_t locator, * locators = 0;
1935 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
1939 memset(&locator, 0, sizeof(locator));
1940 memset(a, 0, sizeof(a[0]));
1942 /* Get a line of input. */
1943 if (! unformat_user (input, unformat_line_input, line_input))
1946 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1948 if (unformat (line_input, "add %_%v%_", &locator_set_name))
1950 else if (unformat (line_input, "del %_%v%_", &locator_set_name))
1952 else if (unformat (line_input, "iface %U p %d w %d",
1953 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
1954 &locator.priority, &locator.weight))
1957 vec_add1(locators, locator);
1961 error = unformat_parse_error(line_input);
1966 a->name = locator_set_name;
1967 a->locators = locators;
1971 rv = vnet_lisp_add_del_locator_set(a, &ls_index);
1974 error = clib_error_return(0, "failed to %s locator-set!",
1975 is_add ? "add" : "delete");
1980 if (locator_set_name)
1981 vec_free (locator_set_name);
1985 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_set_command) = {
1986 .path = "lisp locator-set",
1987 .short_help = "lisp locator-set add/del <name> [iface <iface-name> "
1988 "p <priority> w <weight>]",
1989 .function = lisp_add_del_locator_set_command_fn,
1992 static clib_error_t *
1993 lisp_add_del_locator_in_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
1994 vlib_cli_command_t * cmd)
1996 lisp_gpe_main_t * lgm = &lisp_gpe_main;
1997 vnet_main_t * vnm = lgm->vnet_main;
1998 unformat_input_t _line_input, * line_input = &_line_input;
2000 clib_error_t * error = 0;
2001 u8 * locator_set_name = 0;
2002 u8 locator_set_name_set = 0;
2003 locator_t locator, * locators = 0;
2004 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
2007 memset(&locator, 0, sizeof(locator));
2008 memset(a, 0, sizeof(a[0]));
2010 /* Get a line of input. */
2011 if (! unformat_user (input, unformat_line_input, line_input))
2014 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2016 if (unformat (line_input, "add"))
2018 else if (unformat (line_input, "del"))
2020 else if (unformat(line_input, "locator-set %_%v%_", &locator_set_name))
2021 locator_set_name_set = 1;
2022 else if (unformat (line_input, "iface %U p %d w %d",
2023 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
2024 &locator.priority, &locator.weight))
2027 vec_add1(locators, locator);
2031 error = unformat_parse_error(line_input);
2036 if (!locator_set_name_set)
2038 error = clib_error_return(0, "locator_set name not set!");
2042 a->name = locator_set_name;
2043 a->locators = locators;
2047 vnet_lisp_add_del_locator(a, 0, &ls_index);
2051 vec_free (locator_set_name);
2055 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_in_set_command) = {
2056 .path = "lisp locator",
2057 .short_help = "lisp locator add/del locator-set <name> iface <iface-name> "
2058 "p <priority> w <weight>",
2059 .function = lisp_add_del_locator_in_set_command_fn,
2062 static clib_error_t *
2063 lisp_cp_show_locator_sets_command_fn (vlib_main_t * vm,
2064 unformat_input_t * input,
2065 vlib_cli_command_t * cmd)
2067 locator_set_t * lsit;
2070 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2072 vlib_cli_output (vm, "%=20s%=16s%=16s%=16s", "Locator-set", "Locator",
2073 "Priority", "Weight");
2074 pool_foreach (lsit, lcm->locator_set_pool,
2078 msg = format (msg, "%=16v", lsit->name);
2079 vec_foreach (locit, lsit->locator_indices)
2083 msg = format (msg, "%16s", " ");
2085 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
2087 msg = format (msg, "%16d%16d%16d\n", loc->sw_if_index, loc->priority,
2090 msg = format (msg, "%16U%16d%16d\n", format_ip_address,
2091 &gid_address_ip(&loc->address), loc->priority,
2095 vlib_cli_output (vm, "%v", msg);
2101 VLIB_CLI_COMMAND (lisp_cp_show_locator_sets_command) = {
2102 .path = "show lisp locator-set",
2103 .short_help = "Shows locator-sets",
2104 .function = lisp_cp_show_locator_sets_command_fn,
2108 vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
2110 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2111 ip_address_t * addr;
2114 if (vnet_lisp_enable_disable_status () == 0)
2116 clib_warning ("LISP is disabled!");
2117 return VNET_API_ERROR_LISP_DISABLED;
2122 vec_foreach(addr, lcm->map_resolvers)
2124 if (!ip_address_cmp (addr, &a->address))
2126 clib_warning("map-resolver %U already exists!", format_ip_address,
2131 vec_add1(lcm->map_resolvers, a->address);
2135 for (i = 0; i < vec_len(lcm->map_resolvers); i++)
2137 addr = vec_elt_at_index(lcm->map_resolvers, i);
2138 if (!ip_address_cmp (addr, &a->address))
2140 vec_delete(lcm->map_resolvers, 1, i);
2148 static clib_error_t *
2149 lisp_add_del_map_resolver_command_fn (vlib_main_t * vm,
2150 unformat_input_t * input,
2151 vlib_cli_command_t * cmd)
2153 unformat_input_t _line_input, * line_input = &_line_input;
2155 ip_address_t ip_addr;
2156 clib_error_t * error = 0;
2158 vnet_lisp_add_del_map_resolver_args_t _a, * a = &_a;
2160 /* Get a line of input. */
2161 if (! unformat_user (input, unformat_line_input, line_input))
2164 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2166 if (unformat (line_input, "add"))
2168 else if (unformat (line_input, "del"))
2170 else if (unformat (line_input, "%U", unformat_ip_address, &ip_addr))
2174 error = unformat_parse_error(line_input);
2179 a->address = ip_addr;
2180 rv = vnet_lisp_add_del_map_resolver (a);
2183 error = clib_error_return(0, "failed to %s map-resolver!",
2184 is_add ? "add" : "delete");
2191 VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = {
2192 .path = "lisp map-resolver",
2193 .short_help = "lisp map-resolver add/del <ip_address>",
2194 .function = lisp_add_del_map_resolver_command_fn,
2198 vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a)
2200 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2203 if (vnet_lisp_enable_disable_status () == 0)
2205 clib_warning("LISP is disabled!");
2206 return VNET_API_ERROR_LISP_DISABLED;
2211 p = hash_get_mem(lcm->locator_set_index_by_name, a->locator_set_name);
2214 clib_warning("locator-set %v doesn't exist", a->locator_set_name);
2215 return VNET_API_ERROR_INVALID_ARGUMENT;
2218 lcm->mreq_itr_rlocs = p[0];
2222 lcm->mreq_itr_rlocs = ~0;
2228 static clib_error_t *
2229 lisp_add_del_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2230 unformat_input_t * input,
2231 vlib_cli_command_t * cmd)
2233 unformat_input_t _line_input, * line_input = &_line_input;
2235 u8 * locator_set_name = 0;
2236 clib_error_t * error = 0;
2238 vnet_lisp_add_del_mreq_itr_rloc_args_t _a, * a = &_a;
2240 /* Get a line of input. */
2241 if (! unformat_user (input, unformat_line_input, line_input))
2244 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2246 if (unformat (line_input, "del"))
2248 else if (unformat (line_input, "add %s", &locator_set_name))
2252 error = unformat_parse_error(line_input);
2258 a->locator_set_name = locator_set_name;
2259 rv = vnet_lisp_add_del_mreq_itr_rlocs (a);
2262 error = clib_error_return(0, "failed to %s map-request itr-rlocs!",
2263 is_add ? "add" : "delete");
2266 vec_free(locator_set_name);
2273 VLIB_CLI_COMMAND (lisp_add_del_map_request_command) = {
2274 .path = "lisp map-request itr-rlocs",
2275 .short_help = "lisp map-request itr-rlocs add/del <locator_set_name>",
2276 .function = lisp_add_del_mreq_itr_rlocs_command_fn,
2279 static clib_error_t *
2280 lisp_show_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2281 unformat_input_t * input,
2282 vlib_cli_command_t * cmd)
2284 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2285 locator_set_t * loc_set;
2287 vlib_cli_output (vm, "%=20s", "itr-rlocs");
2289 if (~0 == lcm->mreq_itr_rlocs)
2294 loc_set = pool_elt_at_index (lcm->locator_set_pool, lcm->mreq_itr_rlocs);
2296 vlib_cli_output (vm, "%=20s", loc_set->name);
2301 VLIB_CLI_COMMAND (lisp_show_map_request_command) = {
2302 .path = "show lisp map-request itr-rlocs",
2303 .short_help = "Shows map-request itr-rlocs",
2304 .function = lisp_show_mreq_itr_rlocs_command_fn,
2307 /* Statistics (not really errors) */
2308 #define foreach_lisp_cp_lookup_error \
2310 _(MAP_REQUESTS_SENT, "map-request sent")
2312 static char * lisp_cp_lookup_error_strings[] = {
2313 #define _(sym,string) string,
2314 foreach_lisp_cp_lookup_error
2320 #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
2321 foreach_lisp_cp_lookup_error
2323 LISP_CP_LOOKUP_N_ERROR,
2324 } lisp_cp_lookup_error_t;
2328 LISP_CP_LOOKUP_NEXT_DROP,
2329 LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
2330 LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
2331 LISP_CP_LOOKUP_N_NEXT,
2332 } lisp_cp_lookup_next_t;
2336 gid_address_t dst_eid;
2337 ip_address_t map_resolver_ip;
2338 } lisp_cp_lookup_trace_t;
2341 format_lisp_cp_lookup_trace (u8 * s, va_list * args)
2343 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2344 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2345 lisp_cp_lookup_trace_t * t = va_arg (*args, lisp_cp_lookup_trace_t *);
2347 s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
2348 format_ip_address, &t->map_resolver_ip, format_gid_address,
2354 get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip,
2355 ip_address_t * sloc)
2357 ip_address_t * mrit;
2359 if (vec_len(lcm->map_resolvers) == 0)
2361 clib_warning("No map-resolver configured");
2365 /* find the first mr ip we have a route to and the ip of the
2366 * iface that has a route to it */
2367 vec_foreach(mrit, lcm->map_resolvers)
2369 if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, mrit, sloc)) {
2370 ip_address_copy(mr_ip, mrit);
2375 clib_warning("Can't find map-resolver and local interface ip!");
2379 static gid_address_t *
2380 build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
2386 ip_interface_address_t * ia = 0;
2387 gid_address_t gid_data, * gid = &gid_data;
2388 gid_address_t * rlocs = 0;
2389 ip_prefix_t * ippref = &gid_address_ippref (gid);
2390 ip_address_t * rloc = &ip_prefix_addr (ippref);
2392 memset (gid, 0, sizeof (gid[0]));
2393 gid_address_type (gid) = GID_ADDR_IP_PREFIX;
2394 for (i = 0; i < vec_len(loc_set->locator_indices); i++)
2396 loc_indexp = vec_elt_at_index(loc_set->locator_indices, i);
2397 loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
2399 /* Add ipv4 locators first TODO sort them */
2400 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
2401 loc->sw_if_index, 1 /* unnumbered */,
2403 addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
2404 ip_address_set (rloc, addr, IP4);
2405 ip_prefix_len (ippref) = 32;
2406 vec_add1 (rlocs, gid[0]);
2409 /* Add ipv6 locators */
2410 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
2411 loc->sw_if_index, 1 /* unnumbered */,
2413 addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
2414 ip_address_set (rloc, addr, IP6);
2415 ip_prefix_len (ippref) = 128;
2416 vec_add1 (rlocs, gid[0]);
2422 static vlib_buffer_t *
2423 build_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
2424 gid_address_t * seid, gid_address_t * deid,
2425 locator_set_t * loc_set, ip_address_t * mr_ip,
2426 ip_address_t * sloc, u8 is_smr_invoked,
2427 u64 *nonce_res, u32 * bi_res)
2431 gid_address_t * rlocs = 0;
2433 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
2435 clib_warning ("Can't allocate buffer for Map-Request!");
2439 b = vlib_get_buffer (vm, bi);
2441 /* leave some space for the encap headers */
2442 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
2445 rlocs = build_itr_rloc_list (lcm, loc_set);
2448 lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, nonce_res);
2450 /* push ecm: udp-ip-lisp */
2451 lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid);
2453 /* push outer ip header */
2454 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc,
2464 send_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
2465 gid_address_t * seid, gid_address_t * deid,
2468 u32 next_index, bi = 0, * to_next, map_index;
2472 locator_set_t * loc_set;
2474 pending_map_request_t * pmr;
2475 ip_address_t mr_ip, sloc;
2478 /* get locator-set for seid */
2479 if (!lcm->lisp_pitr)
2481 map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
2482 if (map_index == ~0)
2484 clib_warning("No local mapping found in eid-table for %U!",
2485 format_gid_address, seid);
2489 map = pool_elt_at_index (lcm->mapping_pool, map_index);
2493 clib_warning("Mapping found for src eid %U is not marked as local!",
2494 format_gid_address, seid);
2497 ls_index = map->locator_set_index;
2501 map_index = lcm->pitr_map_index;
2502 map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
2503 ls_index = map->locator_set_index;
2506 /* overwrite locator set if map-request itr-rlocs configured */
2507 if (~0 != lcm->mreq_itr_rlocs)
2509 ls_index = lcm->mreq_itr_rlocs;
2512 loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index);
2514 /* get local iface ip to use in map-request */
2515 if (0 == get_mr_and_local_iface_ip (lcm, &mr_ip, &sloc))
2518 /* build the encapsulated map request */
2519 b = build_encapsulated_map_request (vm, lcm, seid, deid, loc_set, &mr_ip,
2520 &sloc, is_smr_invoked, &nonce, &bi);
2525 /* set fib index to default and lookup node */
2526 vnet_buffer(b)->sw_if_index[VLIB_TX] = 0;
2527 next_index = (ip_addr_version(&mr_ip) == IP4) ?
2528 ip4_lookup_node.index : ip6_lookup_node.index;
2530 f = vlib_get_frame_to_node (vm, next_index);
2532 /* Enqueue the packet */
2533 to_next = vlib_frame_vector_args (f);
2536 vlib_put_frame_to_node (vm, next_index, f);
2538 /* add map-request to pending requests table */
2539 pool_get(lcm->pending_map_requests_pool, pmr);
2540 gid_address_copy (&pmr->src, seid);
2541 gid_address_copy (&pmr->dst, deid);
2542 hash_set(lcm->pending_map_requests_by_nonce, nonce,
2543 pmr - lcm->pending_map_requests_pool);
2547 get_src_and_dst (void *hdr, ip_address_t * src, ip_address_t *dst)
2549 ip4_header_t * ip4 = hdr;
2552 if ((ip4->ip_version_and_header_length & 0xF0) == 0x40)
2554 ip_address_set(src, &ip4->src_address, IP4);
2555 ip_address_set(dst, &ip4->dst_address, IP4);
2560 ip_address_set(src, &ip6->src_address, IP6);
2561 ip_address_set(dst, &ip6->dst_address, IP6);
2566 lisp_get_vni_from_buffer (vlib_buffer_t * b, u8 version)
2569 u32 vni = ~0, table_id = ~0, fib_index;
2570 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
2575 ip4_main_t * im4 = &ip4_main;
2576 fib_index = vec_elt (im4->fib_index_by_sw_if_index,
2577 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2578 fib = find_ip4_fib_by_table_index_or_id (im4, fib_index,
2579 IP4_ROUTE_FLAG_FIB_INDEX);
2580 table_id = fib->table_id;
2585 ip6_main_t * im6 = &ip6_main;
2586 fib_index = vec_elt (im6->fib_index_by_sw_if_index,
2587 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2588 fib = find_ip6_fib_by_table_index_or_id (im6, fib_index,
2589 IP6_ROUTE_FLAG_FIB_INDEX);
2590 table_id = fib->table_id;
2593 vnip = hash_get (lcm->vni_by_table_id, table_id);
2597 clib_warning ("vrf %d is not mapped to any vni!", table_id);
2603 lisp_cp_lookup (vlib_main_t * vm, vlib_node_runtime_t * node,
2604 vlib_frame_t * from_frame)
2606 u32 * from, * to_next_drop, di, si;
2607 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main();
2608 u32 pkts_mapped = 0;
2609 uword n_left_from, n_left_to_next_drop;
2611 from = vlib_frame_vector_args (from_frame);
2612 n_left_from = from_frame->n_vectors;
2614 while (n_left_from > 0)
2616 vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
2617 to_next_drop, n_left_to_next_drop);
2619 while (n_left_from > 0 && n_left_to_next_drop > 0)
2624 gid_address_t src, dst;
2625 ip_prefix_t * spref, * dpref;
2627 gid_address_type (&src) = GID_ADDR_IP_PREFIX;
2628 spref = &gid_address_ippref(&src);
2629 gid_address_type (&dst) = GID_ADDR_IP_PREFIX;
2630 dpref = &gid_address_ippref(&dst);
2635 to_next_drop[0] = pi0;
2637 n_left_to_next_drop -= 1;
2639 p0 = vlib_get_buffer (vm, pi0);
2640 p0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
2642 /* src/dst eid pair */
2643 ip0 = vlib_buffer_get_current (p0);
2644 get_src_and_dst (ip0, &ip_prefix_addr(spref), &ip_prefix_addr(dpref));
2645 ip_prefix_len(spref) = ip_address_max_len (ip_prefix_version(spref));
2646 ip_prefix_len(dpref) = ip_address_max_len (ip_prefix_version(dpref));
2648 vni = lisp_get_vni_from_buffer (p0, ip_prefix_version (spref));
2649 gid_address_vni (&dst) = vni;
2650 gid_address_vni (&src) = vni;
2652 /* if we have remote mapping for destination already in map-chache
2653 add forwarding tunnel directly. If not send a map-request */
2654 di = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst);
2657 mapping_t * m = vec_elt_at_index (lcm->mapping_pool, di);
2658 /* send a map-request also in case of negative mapping entry
2659 with corresponding action */
2660 if (m->action == ACTION_SEND_MAP_REQUEST)
2662 /* send map-request */
2663 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
2668 si = gid_dictionary_lookup (&lcm->mapping_index_by_gid,
2672 dp_add_fwd_entry (lcm, si, di);
2678 /* send map-request */
2679 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
2683 if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED))
2685 lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, p0,
2688 memset(tr, 0, sizeof(*tr));
2689 gid_address_copy (&tr->dst_eid, &dst);
2690 if (vec_len(lcm->map_resolvers) > 0)
2692 clib_memcpy (&tr->map_resolver_ip,
2693 vec_elt_at_index(lcm->map_resolvers, 0),
2694 sizeof(ip_address_t));
2697 gid_address_free (&dst);
2698 gid_address_free (&src);
2701 vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP, n_left_to_next_drop);
2703 vlib_node_increment_counter (vm, node->node_index,
2704 LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
2706 return from_frame->n_vectors;
2709 VLIB_REGISTER_NODE (lisp_cp_lookup_node) = {
2710 .function = lisp_cp_lookup,
2711 .name = "lisp-cp-lookup",
2712 .vector_size = sizeof (u32),
2713 .format_trace = format_lisp_cp_lookup_trace,
2714 .type = VLIB_NODE_TYPE_INTERNAL,
2716 .n_errors = LISP_CP_LOOKUP_N_ERROR,
2717 .error_strings = lisp_cp_lookup_error_strings,
2719 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
2722 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
2723 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
2724 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
2728 /* lisp_cp_input statistics */
2729 #define foreach_lisp_cp_input_error \
2731 _(MAP_REPLIES_RECEIVED, "map-replies received")
2733 static char * lisp_cp_input_error_strings[] = {
2734 #define _(sym,string) string,
2735 foreach_lisp_cp_input_error
2741 #define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
2742 foreach_lisp_cp_input_error
2744 LISP_CP_INPUT_N_ERROR,
2745 } lisp_cp_input_error_t;
2749 LISP_CP_INPUT_NEXT_DROP,
2750 LISP_CP_INPUT_N_NEXT,
2751 } lisp_cp_input_next_t;
2755 gid_address_t dst_eid;
2756 ip4_address_t map_resolver_ip;
2757 } lisp_cp_input_trace_t;
2760 format_lisp_cp_input_trace (u8 * s, va_list * args)
2762 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2763 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2764 CLIB_UNUSED(lisp_cp_input_trace_t * t) = va_arg (*args, lisp_cp_input_trace_t *);
2766 s = format (s, "LISP-CP-INPUT: TODO");
2771 process_map_reply (lisp_cp_main_t * lcm, vlib_buffer_t * b)
2773 u32 len = 0, i, ttl;
2775 pending_map_request_t * pmr;
2777 map_reply_hdr_t * mrep_hdr;
2781 u8 authoritative, action;
2782 locator_t * locators = 0, * loc;
2783 vnet_lisp_add_del_adjacency_args_t _a, * a = &_a;
2785 mrep_hdr = vlib_buffer_get_current (b);
2787 /* Check pending requests table and nonce */
2788 nonce = MREP_NONCE(mrep_hdr);
2789 pmr_index = hash_get(lcm->pending_map_requests_by_nonce, nonce);
2792 clib_warning("No pending map-request entry with nonce %lu!", nonce);
2795 pmr = pool_elt_at_index(lcm->pending_map_requests_pool, pmr_index[0]);
2797 vlib_buffer_pull (b, sizeof(*mrep_hdr));
2799 for (i = 0; i < MREP_REC_COUNT(mrep_hdr); i++)
2802 h = vlib_buffer_get_current (b);
2803 ttl = clib_net_to_host_u32 (MAP_REC_TTL(h));
2804 action = MAP_REC_ACTION(h);
2805 authoritative = MAP_REC_AUTH(h);
2807 len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed);
2810 clib_warning ("Failed to parse mapping record!");
2811 vec_foreach (loc, locators)
2819 memset(a, 0, sizeof(*a));
2821 a->authoritative = authoritative;
2823 a->locators = locators;
2824 gid_address_copy(&a->seid, &pmr->src);
2825 gid_address_copy(&a->deid, &deid);
2828 lisp_add_del_adjacency (lcm, a);
2833 /* remove pending map request entry */
2834 hash_unset(lcm->pending_map_requests_by_nonce, nonce);
2835 pool_put(lcm->pending_map_requests_pool, pmr);
2839 process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm, vlib_buffer_t * b)
2841 map_request_hdr_t * mreq_hdr;
2842 gid_address_t src, dst;
2845 gid_address_t * itr_rlocs = 0, * rloc;
2847 mreq_hdr = vlib_buffer_get_current (b);
2848 vlib_buffer_pull (b, sizeof(*mreq_hdr));
2850 // nonce = MREQ_NONCE(mreq_hdr);
2852 if (!MREQ_SMR(mreq_hdr)) {
2853 clib_warning("Only SMR Map-Requests supported for now!");
2858 len = lisp_msg_parse_addr (b, &src);
2862 /* for now we don't do anything with the itr's rlocs */
2863 len = lisp_msg_parse_itr_rlocs (b, &itr_rlocs, MREQ_ITR_RLOC_COUNT(mreq_hdr) + 1);
2867 /* TODO: RLOCs are currently unused, so free them for now */
2868 vec_foreach (rloc, itr_rlocs)
2870 gid_address_free (rloc);
2873 /* parse eid records and send SMR-invoked map-requests */
2874 for (i = 0; i < MREQ_REC_COUNT(mreq_hdr); i++)
2876 memset(&dst, 0, sizeof(dst));
2877 len = lisp_msg_parse_eid_rec (b, &dst);
2880 clib_warning("Can't parse map-request EID-record");
2883 /* send SMR-invoked map-requests */
2884 send_encapsulated_map_request (vm, lcm, &dst, &src, /* invoked */ 1);
2889 lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
2890 vlib_frame_t * from_frame)
2892 u32 n_left_from, * from, * to_next_drop;
2893 lisp_msg_type_e type;
2894 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2896 from = vlib_frame_vector_args (from_frame);
2897 n_left_from = from_frame->n_vectors;
2900 while (n_left_from > 0)
2902 u32 n_left_to_next_drop;
2904 vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
2905 to_next_drop, n_left_to_next_drop);
2906 while (n_left_from > 0 && n_left_to_next_drop > 0)
2914 to_next_drop[0] = bi0;
2916 n_left_to_next_drop -= 1;
2918 b0 = vlib_get_buffer (vm, bi0);
2920 type = lisp_msg_type(vlib_buffer_get_current (b0));
2923 case LISP_MAP_REPLY:
2924 process_map_reply (lcm, b0);
2926 case LISP_MAP_REQUEST:
2927 process_map_request(vm, lcm, b0);
2930 clib_warning("Unsupported LISP message type %d", type);
2934 b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP];
2936 if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
2942 vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP, n_left_to_next_drop);
2944 return from_frame->n_vectors;
2947 VLIB_REGISTER_NODE (lisp_cp_input_node) = {
2948 .function = lisp_cp_input,
2949 .name = "lisp-cp-input",
2950 .vector_size = sizeof (u32),
2951 .format_trace = format_lisp_cp_input_trace,
2952 .type = VLIB_NODE_TYPE_INTERNAL,
2954 .n_errors = LISP_CP_INPUT_N_ERROR,
2955 .error_strings = lisp_cp_input_error_strings,
2957 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
2960 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
2965 lisp_cp_init (vlib_main_t *vm)
2967 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2968 clib_error_t * error = 0;
2970 if ((error = vlib_call_init_function (vm, lisp_gpe_init)))
2973 lcm->im4 = &ip4_main;
2974 lcm->im6 = &ip6_main;
2975 lcm->vlib_main = vm;
2976 lcm->vnet_main = vnet_get_main();
2977 lcm->mreq_itr_rlocs = ~0;
2980 gid_dictionary_init (&lcm->mapping_index_by_gid);
2982 /* default vrf mapped to vni 0 */
2983 hash_set(lcm->table_id_by_vni, 0, 0);
2984 hash_set(lcm->vni_by_table_id, 0, 0);
2986 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp,
2987 lisp_cp_input_node.index, 1 /* is_ip4 */);
2988 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6,
2989 lisp_cp_input_node.index, 0 /* is_ip4 */);
2994 VLIB_INIT_FUNCTION(lisp_cp_init);