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->rmt_loc = fe->dst_loc;
225 a->lcl_loc = fe->src_loc;
226 a->vni = gid_address_vni(&a->rmt_eid);
227 gid_address_copy(&a->rmt_eid, &fe->deid);
229 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
231 /* delete entry in fwd table */
232 hash_unset(lcm->fwd_entry_by_mapping_index, dst_map_index);
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 ip_address_t * lcl_loc, ip_address_t * rmt_loc)
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;
251 rmt_ls = pool_elt_at_index(lcm->locator_set_pool, rmt_map->locator_set_index);
252 lcl_ls = pool_elt_at_index(lcm->locator_set_pool, lcl_map->locator_set_index);
254 if (!rmt_ls || vec_len(rmt_ls->locator_indices) == 0)
261 /* find unvisited remote locator with best priority */
262 for (i = 0; i < vec_len(rmt_ls->locator_indices); i++)
264 if (0 != hash_get(checked, i))
267 li = vec_elt(rmt_ls->locator_indices, i);
268 l = pool_elt_at_index(lcm->locator_pool, li);
270 /* we don't support non-IP locators for now */
271 if (gid_address_type(&l->address) != GID_ADDR_IP_PREFIX)
274 if (l->priority < minp && l->priority >= limitp)
281 /* check if a local locator with a route to remote locator exists */
284 esi = ip_fib_get_egress_iface_for_dst (
285 lcm, &gid_address_ip(&rmt->address));
289 for (i = 0; i < vec_len(lcl_ls->locator_indices); i++)
291 li = vec_elt (lcl_ls->locator_indices, i);
292 locator_t * sl = pool_elt_at_index (lcm->locator_pool, li);
294 /* found local locator */
295 if (sl->sw_if_index == esi)
297 if (0 == ip_interface_get_first_ip_address (lcm,
299 gid_address_ip_version(&rmt->address), lcl))
302 ip_address_copy(rmt_loc, &gid_address_ip(&rmt->address));
303 ip_address_copy(lcl_loc, lcl);
308 /* skip this remote locator in next searches */
310 hash_set(checked, check_index, 1);
316 return (done == 2) ? 1 : 0;
320 dp_add_fwd_entry (lisp_cp_main_t* lcm, u32 src_map_index, u32 dst_map_index)
322 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, * a = &_a;
323 mapping_t * src_map, * dst_map;
325 uword * feip = 0, * dpid;
329 memset (a, 0, sizeof(*a));
331 /* remove entry if it already exists */
332 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
334 dp_del_fwd_entry (lcm, src_map_index, dst_map_index);
336 src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index);
337 dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index);
339 /* insert data plane forwarding entry */
342 gid_address_copy (&a->rmt_eid, &dst_map->eid);
343 a->vni = gid_address_vni(&a->rmt_eid);
345 /* get vrf or bd_index associated to vni */
346 type = gid_address_type(&dst_map->eid);
347 if (GID_ADDR_IP_PREFIX == type)
349 dpid = hash_get(lcm->table_id_by_vni, a->vni);
352 clib_warning("vni %d not associated to a vrf!", a->vni);
355 a->table_id = dpid[0];
357 else if (GID_ADDR_MAC == type)
359 dpid = hash_get(lcm->bd_id_by_vni, a->vni);
362 clib_warning("vni %d not associated to a bridge domain !", a->vni);
368 /* find best locator pair that 1) verifies LISP policy 2) are connected */
369 if (0 == get_locator_pair (lcm, src_map, dst_map, &a->lcl_loc, &a->rmt_loc))
373 a->action = dst_map->action;
377 u8 ipver = ip_prefix_version(&gid_address_ippref(&a->rmt_eid));
378 a->decap_next_index = (ipver == IP4) ?
379 LISP_GPE_INPUT_NEXT_IP4_INPUT : LISP_GPE_INPUT_NEXT_IP6_INPUT;
381 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
383 /* add tunnel to fwd entry table XXX check return value from DP insertion */
384 pool_get (lcm->fwd_entry_pool, fe);
385 fe->dst_loc = a->rmt_loc;
386 fe->src_loc = a->lcl_loc;
387 gid_address_copy (&fe->deid, &a->rmt_eid);
388 hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
389 fe - lcm->fwd_entry_pool);
393 * Add/remove mapping to/from map-cache. Overwriting not allowed.
396 vnet_lisp_map_cache_add_del (vnet_lisp_add_del_mapping_args_t * a,
397 u32 * map_index_result)
399 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
400 u32 mi, * map_indexp, map_index, i;
401 mapping_t * m, * old_map;
404 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->eid);
405 old_map = mi != ~0 ? pool_elt_at_index (lcm->mapping_pool, mi) : 0;
408 /* TODO check if overwriting and take appropriate actions */
409 if (mi != GID_LOOKUP_MISS && !gid_address_cmp (&old_map->eid,
412 clib_warning ("eid %U found in the eid-table", format_gid_address,
414 return VNET_API_ERROR_VALUE_EXIST;
417 pool_get(lcm->mapping_pool, m);
418 gid_address_copy (&m->eid, &a->eid);
419 m->locator_set_index = a->locator_set_index;
421 m->action = a->action;
424 map_index = m - lcm->mapping_pool;
425 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, map_index,
428 if (pool_is_free_index(lcm->locator_set_pool, a->locator_set_index))
430 clib_warning("Locator set with index %d doesn't exist",
431 a->locator_set_index);
432 return VNET_API_ERROR_INVALID_VALUE;
435 /* add eid to list of eids supported by locator-set */
436 vec_validate (lcm->locator_set_to_eids, a->locator_set_index);
437 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids,
438 a->locator_set_index);
439 vec_add1(eid_indexes[0], map_index);
444 vec_add1(lcm->local_mappings_indexes, map_index);
446 map_index_result[0] = map_index;
450 if (mi == GID_LOOKUP_MISS)
452 clib_warning("eid %U not found in the eid-table", format_gid_address,
454 return VNET_API_ERROR_INVALID_VALUE;
457 /* clear locator-set to eids binding */
458 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids,
459 a->locator_set_index);
460 for (i = 0; i < vec_len(eid_indexes[0]); i++)
462 map_indexp = vec_elt_at_index(eid_indexes[0], i);
463 if (map_indexp[0] == mi)
466 vec_del1(eid_indexes[0], i);
468 /* remove local mark if needed */
469 m = pool_elt_at_index(lcm->mapping_pool, mi);
473 for (k = 0; k < vec_len(lcm->local_mappings_indexes); k++)
475 lm_indexp = vec_elt_at_index(lcm->local_mappings_indexes, k);
476 if (lm_indexp[0] == mi)
479 vec_del1(lcm->local_mappings_indexes, k);
482 /* remove mapping from dictionary */
483 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, 0, 0);
484 gid_address_free (&m->eid);
485 pool_put_index (lcm->mapping_pool, mi);
492 * Add/update/delete mapping to/in/from map-cache.
495 vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a,
496 u32 * map_index_result)
498 uword * dp_table = 0;
502 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
504 if (vnet_lisp_enable_disable_status () == 0)
506 clib_warning ("LISP is disabled!");
507 return VNET_API_ERROR_LISP_DISABLED;
510 vni = gid_address_vni(&a->eid);
511 type = gid_address_type(&a->eid);
512 if (GID_ADDR_IP_PREFIX == type)
513 dp_table = hash_get(lcm->table_id_by_vni, vni);
514 else if (GID_ADDR_MAC == type)
515 dp_table = hash_get(lcm->bd_id_by_vni, vni);
519 clib_warning("vni %d not associated to a %s!", vni,
520 GID_ADDR_IP_PREFIX == type ? "vrf" : "bd");
521 return VNET_API_ERROR_INVALID_VALUE;
524 /* store/remove mapping from map-cache */
525 return vnet_lisp_map_cache_add_del (a, map_index_result);
528 static clib_error_t *
529 lisp_add_del_local_eid_command_fn (vlib_main_t * vm, unformat_input_t * input,
530 vlib_cli_command_t * cmd)
532 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
533 unformat_input_t _line_input, * line_input = &_line_input;
536 ip_prefix_t * prefp = &gid_address_ippref(&eid);
537 u8 * mac = gid_address_mac(&eid);
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 /* Get a line of input. */
549 if (! unformat_user (input, unformat_line_input, line_input))
552 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
554 if (unformat (line_input, "add"))
556 else if (unformat (line_input, "del"))
558 else if (unformat (line_input, "vni %d", &vni))
559 gid_address_vni (&eid) = vni;
560 else if (unformat (line_input, "eid %U", unformat_ip_prefix, prefp))
562 gid_address_type (&eid) = GID_ADDR_IP_PREFIX;
565 else if (unformat (line_input, "eid %U", unformat_mac_address, mac))
567 gid_address_type (&eid) = GID_ADDR_MAC;
570 else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name))
572 p = hash_get_mem(lcm->locator_set_index_by_name, locator_set_name);
575 error = clib_error_return(0, "locator-set %s doesn't exist",
579 locator_set_index = p[0];
583 error = unformat_parse_error(line_input);
587 /* XXX treat batch configuration */
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;
970 ip_prefix_t * eid_ippref;
972 u8 * dmac = gid_address_mac (&eid);
975 u32 vni, action = ~0, p, w;
978 /* Get a line of input. */
979 if (! unformat_user (input, unformat_line_input, line_input))
982 memset(&eid, 0, sizeof(eid));
983 memset(&rloc, 0, sizeof(rloc));
985 eid_ippref = &gid_address_ippref(&eid);
987 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
989 if (unformat (line_input, "del-all"))
991 else if (unformat (line_input, "del"))
993 else if (unformat (line_input, "add"))
995 else if (unformat (line_input, "eid %U",
996 unformat_ip_prefix, eid_ippref))
998 gid_address_type (&eid) = GID_ADDR_IP_PREFIX;
1001 else if (unformat (line_input, "eid %U",
1002 unformat_mac_address, dmac))
1004 gid_address_type (&eid) = GID_ADDR_MAC;
1007 else if (unformat (line_input, "vni %u", &vni))
1009 gid_address_vni (&eid) = vni;
1011 else if (unformat (line_input, "p %d w %d", &p, &w))
1015 clib_warning ("No RLOC configured for setting priority/weight!");
1018 curr_rloc->priority = p;
1019 curr_rloc->weight = w;
1021 else if (unformat (line_input, "rloc %U", unformat_ip_address,
1024 vec_add1 (rlocs, rloc);
1025 curr_rloc = &rlocs[vec_len (rlocs) - 1];
1027 else if (unformat (line_input, "action %s", &s))
1029 if (!strcmp ((char *)s, "no-action"))
1030 action = LISP_NO_ACTION;
1031 if (!strcmp ((char *)s, "natively-forward"))
1032 action = LISP_FORWARD_NATIVE;
1033 if (!strcmp ((char *)s, "send-map-request"))
1034 action = LISP_SEND_MAP_REQUEST;
1035 else if (!strcmp ((char *)s, "drop"))
1039 clib_warning ("invalid action: '%s'", s);
1045 clib_warning ("parse error");
1052 clib_warning ("missing eid!");
1060 if (is_add && (~0 == action)
1061 && 0 == vec_len (rlocs))
1063 clib_warning ("no action set for negative map-reply!");
1069 vnet_lisp_clear_all_remote_adjacencies ();
1073 /* TODO build src/dst with seid*/
1075 /* if it's a delete, clean forwarding */
1078 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1079 rv = lisp_add_del_adjacency (lcm, 0, &eid, /* is_add */ 0);
1086 /* add as static remote mapping, i.e., not authoritative and infinite
1088 rv = vnet_lisp_add_del_mapping (&eid, rlocs, action, 0, ~0, is_add, 0);
1091 clib_warning("failed to %s remote mapping!", is_add ? "add" : "delete");
1095 unformat_free (line_input);
1101 VLIB_CLI_COMMAND (lisp_add_del_remote_mapping_command) = {
1102 .path = "lisp remote-mapping",
1103 .short_help = "lisp remote-mapping add|del [del-all] vni <vni> "
1104 "eid <est-eid> [action <no-action|natively-forward|"
1105 "send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
1106 .function = lisp_add_del_remote_mapping_command_fn,
1110 * Handler for add/del adjacency CLI.
1112 static clib_error_t *
1113 lisp_add_del_adjacency_command_fn (vlib_main_t * vm, unformat_input_t * input,
1114 vlib_cli_command_t * cmd)
1116 clib_error_t * error = 0;
1117 unformat_input_t _line_input, * line_input = &_line_input;
1118 vnet_lisp_add_del_adjacency_args_t _a, * a = &_a;
1120 locator_t rloc, * rlocs = 0;
1121 ip_prefix_t * deid_ippref, * seid_ippref;
1122 gid_address_t seid, deid;
1123 u8 * dmac = gid_address_mac (&deid);
1124 u8 * smac = gid_address_mac (&seid);
1125 u8 deid_set = 0, seid_set = 0;
1127 u32 vni, action = ~0;
1130 /* Get a line of input. */
1131 if (! unformat_user (input, unformat_line_input, line_input))
1134 memset(&deid, 0, sizeof(deid));
1135 memset(&seid, 0, sizeof(seid));
1136 memset(&rloc, 0, sizeof(rloc));
1138 seid_ippref = &gid_address_ippref(&seid);
1139 deid_ippref = &gid_address_ippref(&deid);
1141 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1143 if (unformat (line_input, "del"))
1145 else if (unformat (line_input, "add"))
1147 else if (unformat (line_input, "deid %U",
1148 unformat_ip_prefix, deid_ippref))
1150 gid_address_type (&deid) = GID_ADDR_IP_PREFIX;
1153 else if (unformat (line_input, "deid %U",
1154 unformat_mac_address, dmac))
1156 gid_address_type (&deid) = GID_ADDR_MAC;
1159 else if (unformat (line_input, "vni %u", &vni))
1161 gid_address_vni (&seid) = vni;
1162 gid_address_vni (&deid) = vni;
1164 else if (unformat (line_input, "seid %U",
1165 unformat_ip_prefix, seid_ippref))
1167 gid_address_type (&seid) = GID_ADDR_IP_PREFIX;
1170 else if (unformat (line_input, "seid %U",
1171 unformat_mac_address, smac))
1173 gid_address_type (&seid) = GID_ADDR_MAC;
1178 clib_warning ("parse error");
1185 clib_warning ("missing deid!");
1189 if (GID_ADDR_IP_PREFIX == gid_address_type (&deid))
1191 /* if seid not set, make sure the ip version is the same as that
1192 * of the deid. This ensures the seid to be configured will be
1193 * either 0/0 or ::/0 */
1195 ip_prefix_version(seid_ippref) = ip_prefix_version(deid_ippref);
1198 (ip_prefix_version (deid_ippref)
1199 != ip_prefix_version(seid_ippref)))
1201 clib_warning ("source and destination EIDs are not"
1202 " in the same IP family!");
1207 if (is_add && (~0 == action)
1208 && 0 == vec_len (rlocs))
1210 clib_warning ("no action set for negative map-reply!");
1214 memset(a, 0, sizeof(a[0]));
1215 gid_address_copy (&a->seid, &deid);
1216 gid_address_copy (&a->deid, &seid);
1219 rv = vnet_lisp_add_del_adjacency (a);
1222 clib_warning("failed to %s adjacency!", is_add ? "add" : "delete");
1225 unformat_free (line_input);
1231 VLIB_CLI_COMMAND (lisp_add_del_adjacency_command) = {
1232 .path = "lisp adjacency",
1233 .short_help = "lisp adjacency add|del vni <vni>"
1234 "deid <dest-eid> seid <src-eid> [action <no-action|natively-forward|"
1235 "send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
1236 .function = lisp_add_del_adjacency_command_fn,
1240 static clib_error_t *
1241 lisp_show_map_resolvers_command_fn (vlib_main_t * vm,
1242 unformat_input_t * input,
1243 vlib_cli_command_t * cmd)
1245 ip_address_t * addr;
1246 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1248 vec_foreach (addr, lcm->map_resolvers)
1250 vlib_cli_output (vm, "%U", format_ip_address, addr);
1255 VLIB_CLI_COMMAND (lisp_show_map_resolvers_command) = {
1256 .path = "show lisp map-resolvers",
1257 .short_help = "show lisp map-resolvers",
1258 .function = lisp_show_map_resolvers_command_fn,
1262 vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add)
1264 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1265 u32 locator_set_index = ~0;
1269 if (vnet_lisp_enable_disable_status () == 0)
1271 clib_warning ("LISP is disabled!");
1272 return VNET_API_ERROR_LISP_DISABLED;
1275 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
1278 clib_warning ("locator-set %v doesn't exist", locator_set_name);
1281 locator_set_index = p[0];
1285 pool_get (lcm->mapping_pool, m);
1286 m->locator_set_index = locator_set_index;
1288 lcm->pitr_map_index = m - lcm->mapping_pool;
1290 /* enable pitr mode */
1295 /* remove pitr mapping */
1296 pool_put_index (lcm->mapping_pool, lcm->pitr_map_index);
1298 /* disable pitr mode */
1304 static clib_error_t *
1305 lisp_pitr_set_locator_set_command_fn (vlib_main_t * vm,
1306 unformat_input_t * input,
1307 vlib_cli_command_t * cmd)
1309 u8 locator_name_set = 0;
1310 u8 * locator_set_name = 0;
1312 unformat_input_t _line_input, * line_input = &_line_input;
1313 clib_error_t * error = 0;
1316 /* Get a line of input. */
1317 if (! unformat_user (input, unformat_line_input, line_input))
1320 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1322 if (unformat (line_input, "ls %_%v%_", &locator_set_name))
1323 locator_name_set = 1;
1324 else if (unformat (line_input, "disable"))
1327 return clib_error_return (0, "parse error");
1330 if (!locator_name_set)
1332 clib_warning ("No locator set specified!");
1335 rv = vnet_lisp_pitr_set_locator_set (locator_set_name, is_add);
1338 error = clib_error_return(0, "failed to %s pitr!",
1339 is_add ? "add" : "delete");
1343 if (locator_set_name)
1344 vec_free (locator_set_name);
1348 VLIB_CLI_COMMAND (lisp_pitr_set_locator_set_command) = {
1349 .path = "lisp pitr",
1350 .short_help = "lisp pitr [disable] ls <locator-set-name>",
1351 .function = lisp_pitr_set_locator_set_command_fn,
1354 static clib_error_t *
1355 lisp_show_pitr_command_fn (vlib_main_t * vm,
1356 unformat_input_t * input,
1357 vlib_cli_command_t * cmd)
1359 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1364 vlib_cli_output (vm, "%=20s%=16s",
1365 "pitr", lcm->lisp_pitr ? "locator-set" : "");
1367 if (!lcm->lisp_pitr) {
1368 vlib_cli_output (vm, "%=20s", "disable");
1372 if (~0 == lcm->pitr_map_index) {
1373 tmp_str = format(0, "N/A");
1375 m = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
1376 if (~0 != m->locator_set_index) {
1377 ls = pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index);
1378 tmp_str = format(0, "%s", ls->name);
1380 tmp_str = format(0, "N/A");
1383 vec_add1(tmp_str, 0);
1385 vlib_cli_output (vm, "%=20s%=16s",
1393 VLIB_CLI_COMMAND (lisp_show_pitr_command) = {
1394 .path = "show lisp pitr",
1395 .short_help = "Show pitr",
1396 .function = lisp_show_pitr_command_fn,
1400 format_eid_entry (u8 * s, va_list * args)
1402 vnet_main_t * vnm = va_arg (*args, vnet_main_t *);
1403 lisp_cp_main_t * lcm = va_arg (*args, lisp_cp_main_t *);
1404 mapping_t * mapit = va_arg (*args, mapping_t *);
1405 locator_set_t * ls = va_arg (*args, locator_set_t *);
1406 gid_address_t * gid = &mapit->eid;
1407 u32 ttl = mapit->ttl;
1408 u8 aut = mapit->authoritative;
1413 u8 * type = ls->local ? format(0, "local(%s)", ls->name)
1414 : format(0, "remote");
1416 if (vec_len (ls->locator_indices) == 0)
1418 s = format (s, "%-35U%-30s%-20u%-u", format_gid_address, gid,
1423 vec_foreach (loc_index, ls->locator_indices)
1425 locator_t * l = pool_elt_at_index (lcm->locator_pool, loc_index[0]);
1427 loc = format (0, "%U", format_vnet_sw_if_index_name, vnm,
1430 loc = format (0, "%U", format_ip_address,
1431 &gid_address_ip (&l->address));
1435 s = format (s, "%-35U%-20s%-30v%-20u%-u\n", format_gid_address,
1436 gid, type, loc, ttl, aut);
1440 s = format (s, "%55s%v\n", "", loc);
1446 static clib_error_t *
1447 lisp_show_eid_table_command_fn (vlib_main_t * vm,
1448 unformat_input_t * input,
1449 vlib_cli_command_t * cmd)
1451 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1453 unformat_input_t _line_input, * line_input = &_line_input;
1459 memset (&eid, 0, sizeof(eid));
1461 /* Get a line of input. */
1462 if (!unformat_user (input, unformat_line_input, line_input))
1465 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1467 if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
1469 else if (unformat (line_input, "local"))
1471 else if (unformat(line_input, "remote"))
1474 return clib_error_return (0, "parse error: '%U'",
1475 format_unformat_error, line_input);
1478 vlib_cli_output (vm, "%-35s%-20s%-30s%-20s%-s",
1479 "EID", "type", "locators", "ttl", "autoritative");
1483 pool_foreach (mapit, lcm->mapping_pool,
1485 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1486 mapit->locator_set_index);
1487 if (filter && !((1 == filter && ls->local) ||
1488 (2 == filter && !ls->local)))
1492 vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
1498 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &eid);
1502 mapit = pool_elt_at_index (lcm->mapping_pool, mi);
1503 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1504 mapit->locator_set_index);
1506 if (filter && !((1 == filter && ls->local) ||
1507 (2 == filter && !ls->local)))
1512 vlib_cli_output (vm, "%U,", format_eid_entry, lcm->vnet_main,
1519 VLIB_CLI_COMMAND (lisp_cp_show_eid_table_command) = {
1520 .path = "show lisp eid-table",
1521 .short_help = "Shows EID table",
1522 .function = lisp_show_eid_table_command_fn,
1525 /* cleans locator to locator-set data and removes locators not part of
1526 * any locator-set */
1528 clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi)
1530 u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes, *to_be_deleted = 0;
1531 locator_set_t * ls = pool_elt_at_index(lcm->locator_set_pool, lsi);
1532 for (i = 0; i < vec_len(ls->locator_indices); i++)
1534 loc_indexp = vec_elt_at_index(ls->locator_indices, i);
1535 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1537 for (j = 0; j < vec_len(ls_indexes[0]); j++)
1539 ls_indexp = vec_elt_at_index(ls_indexes[0], j);
1540 if (ls_indexp[0] == lsi)
1544 /* delete index for removed locator-set*/
1545 vec_del1(ls_indexes[0], j);
1547 /* delete locator if it's part of no locator-set */
1548 if (vec_len (ls_indexes[0]) == 0)
1550 pool_put_index (lcm->locator_pool, loc_indexp[0]);
1551 vec_add1 (to_be_deleted, i);
1557 for (i = 0; i < vec_len (to_be_deleted); i++)
1559 loc_indexp = vec_elt_at_index (to_be_deleted, i);
1560 vec_del1 (ls->locator_indices, loc_indexp[0]);
1562 vec_free (to_be_deleted);
1566 static inline uword *
1567 get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p)
1569 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1574 /* find locator-set */
1577 p = hash_get_mem(lcm->locator_set_index_by_name, a->name);
1588 is_locator_in_locator_set (lisp_cp_main_t * lcm, locator_set_t * ls,
1595 ASSERT(loc != NULL);
1597 vec_foreach(locit, ls->locator_indices)
1599 itloc = pool_elt_at_index(lcm->locator_pool, locit[0]);
1600 if ((ls->local && itloc->sw_if_index == loc->sw_if_index) ||
1601 (!ls->local && !gid_address_cmp(&itloc->address, &loc->address)))
1603 clib_warning("Duplicate locator");
1604 return VNET_API_ERROR_VALUE_EXIST;
1612 remove_locator_from_locator_set (locator_set_t * ls, u32 * locit, u32 ls_index,
1615 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1616 u32 ** ls_indexes = NULL;
1619 ASSERT(locit != NULL);
1621 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1623 pool_put_index(lcm->locator_pool, locit[0]);
1624 vec_del1(ls->locator_indices, loc_id);
1625 vec_del1(ls_indexes[0], ls_index);
1629 vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a,
1630 locator_set_t * ls, u32 * ls_result)
1632 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1633 locator_t * loc = NULL, *itloc = NULL;
1634 uword _p = (u32)~0, * p = &_p;
1635 u32 loc_index = ~0, ls_index = ~0, * locit = NULL, ** ls_indexes = NULL;
1641 if (vnet_lisp_enable_disable_status () == 0)
1643 clib_warning ("LISP is disabled!");
1644 return VNET_API_ERROR_LISP_DISABLED;
1647 p = get_locator_set_index(a, p);
1650 clib_warning("locator-set %v doesn't exist", a->name);
1651 return VNET_API_ERROR_INVALID_ARGUMENT;
1656 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1659 clib_warning("locator-set %d to be overwritten doesn't exist!",
1661 return VNET_API_ERROR_INVALID_ARGUMENT;
1669 ls_result[0] = p[0];
1671 /* allocate locators */
1672 vec_foreach (itloc, a->locators)
1674 ret = is_locator_in_locator_set(lcm, ls, itloc);
1680 pool_get(lcm->locator_pool, loc);
1682 loc_index = loc - lcm->locator_pool;
1684 vec_add1(ls->locator_indices, loc_index);
1686 vec_validate (lcm->locator_to_locator_sets, loc_index);
1687 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1689 vec_add1(ls_indexes[0], ls_index);
1696 itloc = a->locators;
1698 vec_foreach (locit, ls->locator_indices)
1700 loc = pool_elt_at_index(lcm->locator_pool, locit[0]);
1702 if (loc->local && loc->sw_if_index == itloc->sw_if_index)
1704 remove_locator_from_locator_set(ls, locit,
1707 if (0 == loc->local &&
1708 !gid_address_cmp(&loc->address, &itloc->address))
1710 remove_locator_from_locator_set(ls, locit,
1722 vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
1725 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1727 uword _p = (u32)~0, * p = &_p;
1732 if (vnet_lisp_enable_disable_status () == 0)
1734 clib_warning ("LISP is disabled!");
1735 return VNET_API_ERROR_LISP_DISABLED;
1740 p = get_locator_set_index(a, p);
1743 if (p && p[0] != (u32)~0)
1745 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1748 clib_warning("locator-set %d to be overwritten doesn't exist!",
1753 /* clean locator to locator-set vectors and remove locators if
1754 * they're not part of another locator-set */
1755 clean_locator_to_locator_set (lcm, p[0]);
1757 /* remove locator indices from locator set */
1758 vec_free(ls->locator_indices);
1763 ls_result[0] = p[0];
1765 /* new locator-set */
1768 pool_get(lcm->locator_set_pool, ls);
1769 memset(ls, 0, sizeof(*ls));
1770 ls_index = ls - lcm->locator_set_pool;
1774 ls->name = vec_dup(a->name);
1776 if (!lcm->locator_set_index_by_name)
1777 lcm->locator_set_index_by_name = hash_create_vec(
1778 /* size */0, sizeof(ls->name[0]), sizeof(uword));
1779 hash_set_mem(lcm->locator_set_index_by_name, ls->name, ls_index);
1781 /* mark as local locator-set */
1782 vec_add1(lcm->local_locator_set_indexes, ls_index);
1784 ls->local = a->local;
1786 ls_result[0] = ls_index;
1789 ret = vnet_lisp_add_del_locator(a, ls, NULL);
1797 p = get_locator_set_index(a, p);
1800 clib_warning("locator-set %v doesn't exists", a->name);
1804 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1807 clib_warning("locator-set with index %d doesn't exists", p[0]);
1811 if (lcm->mreq_itr_rlocs == p[0])
1813 clib_warning ("Can't delete the locator-set used to constrain "
1814 "the itr-rlocs in map-requests!");
1818 if (vec_len(lcm->locator_set_to_eids) != 0)
1820 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, p[0]);
1821 if (vec_len(eid_indexes[0]) != 0)
1823 clib_warning ("Can't delete a locator that supports a mapping!");
1828 /* clean locator to locator-sets data */
1829 clean_locator_to_locator_set (lcm, p[0]);
1835 vec_foreach_index(it, lcm->local_locator_set_indexes)
1837 lsi = vec_elt(lcm->local_locator_set_indexes, it);
1840 vec_del1(lcm->local_locator_set_indexes, it);
1844 hash_unset_mem(lcm->locator_set_index_by_name, ls->name);
1847 vec_free(ls->locator_indices);
1848 pool_put(lcm->locator_set_pool, ls);
1854 vnet_lisp_enable_disable (u8 is_enable)
1857 clib_error_t * error = 0;
1858 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1859 vnet_lisp_gpe_enable_disable_args_t _a, * a = &_a;
1861 a->is_en = is_enable;
1862 error = vnet_lisp_gpe_enable_disable (a);
1865 return clib_error_return (0, "failed to %s data-plane!",
1866 a->is_en ? "enable" : "disable");
1871 /* enable all l2 and l3 ifaces */
1872 hash_foreach(vni, dp_table, lcm->table_id_by_vni, ({
1873 dp_add_del_iface(lcm, vni, 0, 1);
1876 hash_foreach(vni, dp_table, lcm->bd_id_by_vni, ({
1877 dp_add_del_iface(lcm, vni, /* is_l2 */ 1, 1);
1882 /* clear interface table */
1883 hash_free(lcm->dp_intf_by_vni);
1884 hash_free(lcm->fwd_entry_by_mapping_index);
1885 pool_free(lcm->fwd_entry_pool);
1888 /* update global flag */
1889 lcm->is_enabled = is_enable;
1894 static clib_error_t *
1895 lisp_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input,
1896 vlib_cli_command_t * cmd)
1898 unformat_input_t _line_input, * line_input = &_line_input;
1902 /* Get a line of input. */
1903 if (! unformat_user (input, unformat_line_input, line_input))
1906 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1908 if (unformat (line_input, "enable"))
1913 else if (unformat (line_input, "disable"))
1917 return clib_error_return (0, "parse error: '%U'",
1918 format_unformat_error, line_input);
1923 return clib_error_return (0, "state not set");
1925 return vnet_lisp_enable_disable (is_enabled);
1928 VLIB_CLI_COMMAND (lisp_cp_enable_disable_command) = {
1930 .short_help = "lisp [enable|disable]",
1931 .function = lisp_enable_disable_command_fn,
1935 vnet_lisp_enable_disable_status (void)
1937 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1938 return lcm->is_enabled;
1942 format_lisp_status (u8 * s, va_list * args)
1944 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1945 return format (s, "%s", lcm->is_enabled ? "enabled" : "disabled");
1948 static clib_error_t *
1949 lisp_show_status_command_fn (vlib_main_t * vm, unformat_input_t * input,
1950 vlib_cli_command_t * cmd)
1953 msg = format (msg, "feature: %U\ngpe: %U\n",
1954 format_lisp_status, format_vnet_lisp_gpe_status);
1955 vlib_cli_output (vm, "%v", msg);
1960 VLIB_CLI_COMMAND (lisp_show_status_command) = {
1961 .path = "show lisp status",
1962 .short_help = "show lisp status",
1963 .function = lisp_show_status_command_fn,
1966 static clib_error_t *
1967 lisp_show_eid_table_map_command_fn (vlib_main_t * vm, unformat_input_t * input,
1968 vlib_cli_command_t * cmd)
1971 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1973 vlib_cli_output (vm, "%=10s%=10s", "VNI", "VRF");
1974 hash_foreach_pair (p, lcm->table_id_by_vni,
1976 vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
1981 VLIB_CLI_COMMAND (lisp_show_eid_table_map_command) = {
1982 .path = "show lisp eid-table map",
1983 .short_help = "show lisp eid-table vni to vrf mappings",
1984 .function = lisp_show_eid_table_map_command_fn,
1987 static clib_error_t *
1988 lisp_add_del_locator_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
1989 vlib_cli_command_t * cmd)
1991 lisp_gpe_main_t * lgm = &lisp_gpe_main;
1992 vnet_main_t * vnm = lgm->vnet_main;
1993 unformat_input_t _line_input, * line_input = &_line_input;
1995 clib_error_t * error = 0;
1996 u8 * locator_set_name = 0;
1997 locator_t locator, * locators = 0;
1998 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
2002 memset(&locator, 0, sizeof(locator));
2003 memset(a, 0, sizeof(a[0]));
2005 /* Get a line of input. */
2006 if (! unformat_user (input, unformat_line_input, line_input))
2009 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2011 if (unformat (line_input, "add %_%v%_", &locator_set_name))
2013 else if (unformat (line_input, "del %_%v%_", &locator_set_name))
2015 else if (unformat (line_input, "iface %U p %d w %d",
2016 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
2017 &locator.priority, &locator.weight))
2020 vec_add1(locators, locator);
2024 error = unformat_parse_error(line_input);
2029 a->name = locator_set_name;
2030 a->locators = locators;
2034 rv = vnet_lisp_add_del_locator_set(a, &ls_index);
2037 error = clib_error_return(0, "failed to %s locator-set!",
2038 is_add ? "add" : "delete");
2043 if (locator_set_name)
2044 vec_free (locator_set_name);
2048 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_set_command) = {
2049 .path = "lisp locator-set",
2050 .short_help = "lisp locator-set add/del <name> [iface <iface-name> "
2051 "p <priority> w <weight>]",
2052 .function = lisp_add_del_locator_set_command_fn,
2055 static clib_error_t *
2056 lisp_add_del_locator_in_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
2057 vlib_cli_command_t * cmd)
2059 lisp_gpe_main_t * lgm = &lisp_gpe_main;
2060 vnet_main_t * vnm = lgm->vnet_main;
2061 unformat_input_t _line_input, * line_input = &_line_input;
2063 clib_error_t * error = 0;
2064 u8 * locator_set_name = 0;
2065 u8 locator_set_name_set = 0;
2066 locator_t locator, * locators = 0;
2067 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
2070 memset(&locator, 0, sizeof(locator));
2071 memset(a, 0, sizeof(a[0]));
2073 /* Get a line of input. */
2074 if (! unformat_user (input, unformat_line_input, line_input))
2077 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2079 if (unformat (line_input, "add"))
2081 else if (unformat (line_input, "del"))
2083 else if (unformat(line_input, "locator-set %_%v%_", &locator_set_name))
2084 locator_set_name_set = 1;
2085 else if (unformat (line_input, "iface %U p %d w %d",
2086 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
2087 &locator.priority, &locator.weight))
2090 vec_add1(locators, locator);
2094 error = unformat_parse_error(line_input);
2099 if (!locator_set_name_set)
2101 error = clib_error_return(0, "locator_set name not set!");
2105 a->name = locator_set_name;
2106 a->locators = locators;
2110 vnet_lisp_add_del_locator(a, 0, &ls_index);
2114 vec_free (locator_set_name);
2118 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_in_set_command) = {
2119 .path = "lisp locator",
2120 .short_help = "lisp locator add/del locator-set <name> iface <iface-name> "
2121 "p <priority> w <weight>",
2122 .function = lisp_add_del_locator_in_set_command_fn,
2125 static clib_error_t *
2126 lisp_cp_show_locator_sets_command_fn (vlib_main_t * vm,
2127 unformat_input_t * input,
2128 vlib_cli_command_t * cmd)
2130 locator_set_t * lsit;
2133 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2135 vlib_cli_output (vm, "%=20s%=16s%=16s%=16s", "Locator-set", "Locator",
2136 "Priority", "Weight");
2137 pool_foreach (lsit, lcm->locator_set_pool,
2143 msg = format (msg, "%=16v", lsit->name);
2147 msg = format (msg, "%=16s", "remote");
2149 vec_foreach (locit, lsit->locator_indices)
2153 msg = format (msg, "%16s", " ");
2155 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
2157 msg = format (msg, "%16d%16d%16d\n", loc->sw_if_index, loc->priority,
2160 msg = format (msg, "%16U%16d%16d\n", format_ip_address,
2161 &gid_address_ip(&loc->address), loc->priority,
2165 vlib_cli_output (vm, "%v", msg);
2171 VLIB_CLI_COMMAND (lisp_cp_show_locator_sets_command) = {
2172 .path = "show lisp locator-set",
2173 .short_help = "Shows locator-sets",
2174 .function = lisp_cp_show_locator_sets_command_fn,
2178 vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
2180 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2181 ip_address_t * addr;
2184 if (vnet_lisp_enable_disable_status () == 0)
2186 clib_warning ("LISP is disabled!");
2187 return VNET_API_ERROR_LISP_DISABLED;
2192 vec_foreach(addr, lcm->map_resolvers)
2194 if (!ip_address_cmp (addr, &a->address))
2196 clib_warning("map-resolver %U already exists!", format_ip_address,
2201 vec_add1(lcm->map_resolvers, a->address);
2205 for (i = 0; i < vec_len(lcm->map_resolvers); i++)
2207 addr = vec_elt_at_index(lcm->map_resolvers, i);
2208 if (!ip_address_cmp (addr, &a->address))
2210 vec_delete(lcm->map_resolvers, 1, i);
2218 static clib_error_t *
2219 lisp_add_del_map_resolver_command_fn (vlib_main_t * vm,
2220 unformat_input_t * input,
2221 vlib_cli_command_t * cmd)
2223 unformat_input_t _line_input, * line_input = &_line_input;
2224 u8 is_add = 1, addr_set = 0;
2225 ip_address_t ip_addr;
2226 clib_error_t * error = 0;
2228 vnet_lisp_add_del_map_resolver_args_t _a, * a = &_a;
2230 /* Get a line of input. */
2231 if (! unformat_user (input, unformat_line_input, line_input))
2234 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2236 if (unformat (line_input, "add"))
2238 else if (unformat (line_input, "del"))
2240 else if (unformat (line_input, "%U", unformat_ip_address, &ip_addr))
2244 error = unformat_parse_error(line_input);
2251 error = clib_error_return(0, "Map-resolver address must be set!");
2256 a->address = ip_addr;
2257 rv = vnet_lisp_add_del_map_resolver (a);
2260 error = clib_error_return(0, "failed to %s map-resolver!",
2261 is_add ? "add" : "delete");
2268 VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = {
2269 .path = "lisp map-resolver",
2270 .short_help = "lisp map-resolver add/del <ip_address>",
2271 .function = lisp_add_del_map_resolver_command_fn,
2275 vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a)
2277 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2280 if (vnet_lisp_enable_disable_status () == 0)
2282 clib_warning("LISP is disabled!");
2283 return VNET_API_ERROR_LISP_DISABLED;
2288 p = hash_get_mem(lcm->locator_set_index_by_name, a->locator_set_name);
2291 clib_warning("locator-set %v doesn't exist", a->locator_set_name);
2292 return VNET_API_ERROR_INVALID_ARGUMENT;
2295 lcm->mreq_itr_rlocs = p[0];
2299 lcm->mreq_itr_rlocs = ~0;
2305 static clib_error_t *
2306 lisp_add_del_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2307 unformat_input_t * input,
2308 vlib_cli_command_t * cmd)
2310 unformat_input_t _line_input, * line_input = &_line_input;
2312 u8 * locator_set_name = 0;
2313 clib_error_t * error = 0;
2315 vnet_lisp_add_del_mreq_itr_rloc_args_t _a, * a = &_a;
2317 /* Get a line of input. */
2318 if (! unformat_user (input, unformat_line_input, line_input))
2321 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2323 if (unformat (line_input, "del"))
2325 else if (unformat (line_input, "add %s", &locator_set_name))
2329 error = unformat_parse_error(line_input);
2335 a->locator_set_name = locator_set_name;
2336 rv = vnet_lisp_add_del_mreq_itr_rlocs (a);
2339 error = clib_error_return(0, "failed to %s map-request itr-rlocs!",
2340 is_add ? "add" : "delete");
2343 vec_free(locator_set_name);
2350 VLIB_CLI_COMMAND (lisp_add_del_map_request_command) = {
2351 .path = "lisp map-request itr-rlocs",
2352 .short_help = "lisp map-request itr-rlocs add/del <locator_set_name>",
2353 .function = lisp_add_del_mreq_itr_rlocs_command_fn,
2356 static clib_error_t *
2357 lisp_show_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2358 unformat_input_t * input,
2359 vlib_cli_command_t * cmd)
2361 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2362 locator_set_t * loc_set;
2364 vlib_cli_output (vm, "%=20s", "itr-rlocs");
2366 if (~0 == lcm->mreq_itr_rlocs)
2371 loc_set = pool_elt_at_index (lcm->locator_set_pool, lcm->mreq_itr_rlocs);
2373 vlib_cli_output (vm, "%=20s", loc_set->name);
2378 VLIB_CLI_COMMAND (lisp_show_map_request_command) = {
2379 .path = "show lisp map-request itr-rlocs",
2380 .short_help = "Shows map-request itr-rlocs",
2381 .function = lisp_show_mreq_itr_rlocs_command_fn,
2384 /* Statistics (not really errors) */
2385 #define foreach_lisp_cp_lookup_error \
2387 _(MAP_REQUESTS_SENT, "map-request sent")
2389 static char * lisp_cp_lookup_error_strings[] = {
2390 #define _(sym,string) string,
2391 foreach_lisp_cp_lookup_error
2397 #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
2398 foreach_lisp_cp_lookup_error
2400 LISP_CP_LOOKUP_N_ERROR,
2401 } lisp_cp_lookup_error_t;
2405 LISP_CP_LOOKUP_NEXT_DROP,
2406 LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
2407 LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
2408 LISP_CP_LOOKUP_N_NEXT,
2409 } lisp_cp_lookup_next_t;
2413 gid_address_t dst_eid;
2414 ip_address_t map_resolver_ip;
2415 } lisp_cp_lookup_trace_t;
2418 format_lisp_cp_lookup_trace (u8 * s, va_list * args)
2420 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2421 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2422 lisp_cp_lookup_trace_t * t = va_arg (*args, lisp_cp_lookup_trace_t *);
2424 s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
2425 format_ip_address, &t->map_resolver_ip, format_gid_address,
2431 get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip,
2432 ip_address_t * sloc)
2434 ip_address_t * mrit;
2436 if (vec_len(lcm->map_resolvers) == 0)
2438 clib_warning("No map-resolver configured");
2442 /* find the first mr ip we have a route to and the ip of the
2443 * iface that has a route to it */
2444 vec_foreach(mrit, lcm->map_resolvers)
2446 if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, mrit, sloc)) {
2447 ip_address_copy(mr_ip, mrit);
2452 clib_warning("Can't find map-resolver and local interface ip!");
2456 static gid_address_t *
2457 build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
2463 ip_interface_address_t * ia = 0;
2464 gid_address_t gid_data, * gid = &gid_data;
2465 gid_address_t * rlocs = 0;
2466 ip_prefix_t * ippref = &gid_address_ippref (gid);
2467 ip_address_t * rloc = &ip_prefix_addr (ippref);
2469 memset (gid, 0, sizeof (gid[0]));
2470 gid_address_type (gid) = GID_ADDR_IP_PREFIX;
2471 for (i = 0; i < vec_len(loc_set->locator_indices); i++)
2473 loc_indexp = vec_elt_at_index(loc_set->locator_indices, i);
2474 loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
2476 /* Add ipv4 locators first TODO sort them */
2477 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
2478 loc->sw_if_index, 1 /* unnumbered */,
2480 addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
2481 ip_address_set (rloc, addr, IP4);
2482 ip_prefix_len (ippref) = 32;
2483 ip_prefix_normalize (ippref);
2484 vec_add1 (rlocs, gid[0]);
2487 /* Add ipv6 locators */
2488 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
2489 loc->sw_if_index, 1 /* unnumbered */,
2491 addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
2492 ip_address_set (rloc, addr, IP6);
2493 ip_prefix_len (ippref) = 128;
2494 ip_prefix_normalize (ippref);
2495 vec_add1 (rlocs, gid[0]);
2501 static vlib_buffer_t *
2502 build_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
2503 gid_address_t * seid, gid_address_t * deid,
2504 locator_set_t * loc_set, ip_address_t * mr_ip,
2505 ip_address_t * sloc, u8 is_smr_invoked,
2506 u64 *nonce_res, u32 * bi_res)
2510 gid_address_t * rlocs = 0;
2512 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
2514 clib_warning ("Can't allocate buffer for Map-Request!");
2518 b = vlib_get_buffer (vm, bi);
2520 /* leave some space for the encap headers */
2521 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
2524 rlocs = build_itr_rloc_list (lcm, loc_set);
2527 lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, nonce_res);
2529 /* push ecm: udp-ip-lisp */
2530 lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid);
2532 /* push outer ip header */
2533 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc,
2543 send_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
2544 gid_address_t * seid, gid_address_t * deid,
2547 u32 next_index, bi = 0, * to_next, map_index;
2551 locator_set_t * loc_set;
2553 pending_map_request_t * pmr;
2554 ip_address_t mr_ip, sloc;
2557 /* get locator-set for seid */
2558 if (!lcm->lisp_pitr)
2560 map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
2561 if (map_index == ~0)
2563 clib_warning("No local mapping found in eid-table for %U!",
2564 format_gid_address, seid);
2568 map = pool_elt_at_index (lcm->mapping_pool, map_index);
2572 clib_warning("Mapping found for src eid %U is not marked as local!",
2573 format_gid_address, seid);
2576 ls_index = map->locator_set_index;
2580 map_index = lcm->pitr_map_index;
2581 map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
2582 ls_index = map->locator_set_index;
2585 /* overwrite locator set if map-request itr-rlocs configured */
2586 if (~0 != lcm->mreq_itr_rlocs)
2588 ls_index = lcm->mreq_itr_rlocs;
2591 loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index);
2593 /* get local iface ip to use in map-request */
2594 if (0 == get_mr_and_local_iface_ip (lcm, &mr_ip, &sloc))
2597 /* build the encapsulated map request */
2598 b = build_encapsulated_map_request (vm, lcm, seid, deid, loc_set, &mr_ip,
2599 &sloc, is_smr_invoked, &nonce, &bi);
2604 /* set fib index to default and lookup node */
2605 vnet_buffer(b)->sw_if_index[VLIB_TX] = 0;
2606 next_index = (ip_addr_version(&mr_ip) == IP4) ?
2607 ip4_lookup_node.index : ip6_lookup_node.index;
2609 f = vlib_get_frame_to_node (vm, next_index);
2611 /* Enqueue the packet */
2612 to_next = vlib_frame_vector_args (f);
2615 vlib_put_frame_to_node (vm, next_index, f);
2617 /* add map-request to pending requests table */
2618 pool_get(lcm->pending_map_requests_pool, pmr);
2619 gid_address_copy (&pmr->src, seid);
2620 gid_address_copy (&pmr->dst, deid);
2621 hash_set(lcm->pending_map_requests_by_nonce, nonce,
2622 pmr - lcm->pending_map_requests_pool);
2626 get_src_and_dst_ip (void *hdr, ip_address_t * src, ip_address_t *dst)
2628 ip4_header_t * ip4 = hdr;
2631 if ((ip4->ip_version_and_header_length & 0xF0) == 0x40)
2633 ip_address_set(src, &ip4->src_address, IP4);
2634 ip_address_set(dst, &ip4->dst_address, IP4);
2639 ip_address_set(src, &ip6->src_address, IP6);
2640 ip_address_set(dst, &ip6->dst_address, IP6);
2645 lisp_get_vni_from_buffer_ip (lisp_cp_main_t * lcm, vlib_buffer_t * b,
2649 u32 vni = ~0, table_id = ~0, fib_index;
2654 ip4_main_t * im4 = &ip4_main;
2655 fib_index = vec_elt (im4->fib_index_by_sw_if_index,
2656 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2657 fib = find_ip4_fib_by_table_index_or_id (im4, fib_index,
2658 IP4_ROUTE_FLAG_FIB_INDEX);
2659 table_id = fib->table_id;
2664 ip6_main_t * im6 = &ip6_main;
2665 fib_index = vec_elt (im6->fib_index_by_sw_if_index,
2666 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2667 fib = find_ip6_fib_by_table_index_or_id (im6, fib_index,
2668 IP6_ROUTE_FLAG_FIB_INDEX);
2669 table_id = fib->table_id;
2672 vnip = hash_get (lcm->vni_by_table_id, table_id);
2676 clib_warning ("vrf %d is not mapped to any vni!", table_id);
2682 lisp_get_vni_from_buffer_eth (lisp_cp_main_t * lcm, vlib_buffer_t * b)
2688 l2input_main_t * l2im = &l2input_main;
2689 l2_input_config_t * config;
2690 l2_bridge_domain_t * bd_config;
2692 sw_if_index0 = vnet_buffer(b)->sw_if_index[VLIB_RX];
2693 config = vec_elt_at_index(l2im->configs, sw_if_index0);
2694 bd_config = vec_elt_at_index (l2im->bd_configs, config->bd_index);
2696 vnip = hash_get (lcm->vni_by_bd_id, bd_config->bd_id);
2700 clib_warning("bridge domain %d is not mapped to any vni!",
2707 get_src_and_dst_eids_from_buffer (lisp_cp_main_t *lcm, vlib_buffer_t * b,
2708 gid_address_t * src, gid_address_t * dst)
2713 type = vnet_buffer(b)->lisp.overlay_afi;
2715 if (LISP_AFI_IP == type || LISP_AFI_IP6 == type)
2718 u8 version, preflen;
2720 gid_address_type(src) = GID_ADDR_IP_PREFIX;
2721 gid_address_type(dst) = GID_ADDR_IP_PREFIX;
2723 ip = vlib_buffer_get_current (b);
2724 get_src_and_dst_ip (ip, &gid_address_ip(src), &gid_address_ip(dst));
2726 version = gid_address_ip_version(src);
2727 preflen = ip_address_max_len (version);
2728 gid_address_ippref_len(src) = preflen;
2729 gid_address_ippref_len(dst) = preflen;
2731 vni = lisp_get_vni_from_buffer_ip (lcm, b, version);
2732 gid_address_vni (dst) = vni;
2733 gid_address_vni (src) = vni;
2735 else if (LISP_AFI_MAC == type)
2737 ethernet_header_t * eh;
2739 eh = vlib_buffer_get_current (b);
2741 gid_address_type(src) = GID_ADDR_MAC;
2742 gid_address_type(dst) = GID_ADDR_MAC;
2743 mac_copy(&gid_address_mac(src), eh->src_address);
2744 mac_copy(&gid_address_mac(dst), eh->dst_address);
2747 vni = lisp_get_vni_from_buffer_eth (lcm, b);
2749 gid_address_vni (dst) = vni;
2750 gid_address_vni (src) = vni;
2755 lisp_cp_lookup (vlib_main_t * vm, vlib_node_runtime_t * node,
2756 vlib_frame_t * from_frame)
2758 u32 * from, * to_next_drop, di, si;
2759 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main();
2760 u32 pkts_mapped = 0;
2761 uword n_left_from, n_left_to_next_drop;
2763 from = vlib_frame_vector_args (from_frame);
2764 n_left_from = from_frame->n_vectors;
2766 while (n_left_from > 0)
2768 vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
2769 to_next_drop, n_left_to_next_drop);
2771 while (n_left_from > 0 && n_left_to_next_drop > 0)
2775 gid_address_t src, dst;
2780 to_next_drop[0] = pi0;
2782 n_left_to_next_drop -= 1;
2784 b0 = vlib_get_buffer (vm, pi0);
2785 b0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
2787 /* src/dst eid pair */
2788 get_src_and_dst_eids_from_buffer (lcm, b0, &src, &dst);
2790 /* if we have remote mapping for destination already in map-chache
2791 add forwarding tunnel directly. If not send a map-request */
2792 di = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst);
2795 mapping_t * m = vec_elt_at_index (lcm->mapping_pool, di);
2796 /* send a map-request also in case of negative mapping entry
2797 with corresponding action */
2798 if (m->action == LISP_SEND_MAP_REQUEST)
2800 /* send map-request */
2801 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
2806 si = gid_dictionary_lookup (&lcm->mapping_index_by_gid,
2810 dp_add_fwd_entry (lcm, si, di);
2816 /* send map-request */
2817 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
2821 if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
2823 lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, b0,
2826 memset(tr, 0, sizeof(*tr));
2827 gid_address_copy (&tr->dst_eid, &dst);
2828 if (vec_len(lcm->map_resolvers) > 0)
2830 clib_memcpy (&tr->map_resolver_ip,
2831 vec_elt_at_index(lcm->map_resolvers, 0),
2832 sizeof(ip_address_t));
2835 gid_address_free (&dst);
2836 gid_address_free (&src);
2839 vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP, n_left_to_next_drop);
2841 vlib_node_increment_counter (vm, node->node_index,
2842 LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
2844 return from_frame->n_vectors;
2847 VLIB_REGISTER_NODE (lisp_cp_lookup_node) = {
2848 .function = lisp_cp_lookup,
2849 .name = "lisp-cp-lookup",
2850 .vector_size = sizeof (u32),
2851 .format_trace = format_lisp_cp_lookup_trace,
2852 .type = VLIB_NODE_TYPE_INTERNAL,
2854 .n_errors = LISP_CP_LOOKUP_N_ERROR,
2855 .error_strings = lisp_cp_lookup_error_strings,
2857 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
2860 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
2861 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
2862 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
2866 /* lisp_cp_input statistics */
2867 #define foreach_lisp_cp_input_error \
2869 _(MAP_REPLIES_RECEIVED, "map-replies received")
2871 static char * lisp_cp_input_error_strings[] = {
2872 #define _(sym,string) string,
2873 foreach_lisp_cp_input_error
2879 #define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
2880 foreach_lisp_cp_input_error
2882 LISP_CP_INPUT_N_ERROR,
2883 } lisp_cp_input_error_t;
2887 LISP_CP_INPUT_NEXT_DROP,
2888 LISP_CP_INPUT_N_NEXT,
2889 } lisp_cp_input_next_t;
2893 gid_address_t dst_eid;
2894 ip4_address_t map_resolver_ip;
2895 } lisp_cp_input_trace_t;
2898 format_lisp_cp_input_trace (u8 * s, va_list * args)
2900 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2901 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2902 CLIB_UNUSED(lisp_cp_input_trace_t * t) = va_arg (*args, lisp_cp_input_trace_t *);
2904 s = format (s, "LISP-CP-INPUT: TODO");
2909 process_map_reply (lisp_cp_main_t * lcm, vlib_buffer_t * b)
2911 u32 len = 0, i, ttl, dst_map_index = 0;
2913 pending_map_request_t * pmr;
2915 map_reply_hdr_t * mrep_hdr;
2919 u8 authoritative, action;
2920 locator_t * locators = 0, * loc;
2922 mrep_hdr = vlib_buffer_get_current (b);
2924 /* Check pending requests table and nonce */
2925 nonce = MREP_NONCE(mrep_hdr);
2926 pmr_index = hash_get(lcm->pending_map_requests_by_nonce, nonce);
2929 clib_warning("No pending map-request entry with nonce %lu!", nonce);
2932 pmr = pool_elt_at_index(lcm->pending_map_requests_pool, pmr_index[0]);
2934 vlib_buffer_pull (b, sizeof(*mrep_hdr));
2936 for (i = 0; i < MREP_REC_COUNT(mrep_hdr); i++)
2939 h = vlib_buffer_get_current (b);
2940 ttl = clib_net_to_host_u32 (MAP_REC_TTL(h));
2941 action = MAP_REC_ACTION(h);
2942 authoritative = MAP_REC_AUTH(h);
2944 len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed);
2947 clib_warning ("Failed to parse mapping record!");
2948 vec_foreach (loc, locators)
2956 /* insert/update mappings cache */
2957 vnet_lisp_add_del_mapping (&deid, locators, action, authoritative, ttl, 1,
2960 /* try to program forwarding only if mapping saved or updated*/
2961 if ((u32) ~0 != dst_map_index)
2962 lisp_add_del_adjacency (lcm, &pmr->src, &deid, 1);
2967 /* remove pending map request entry */
2968 hash_unset(lcm->pending_map_requests_by_nonce, nonce);
2969 pool_put(lcm->pending_map_requests_pool, pmr);
2973 process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm, vlib_buffer_t * b)
2975 map_request_hdr_t * mreq_hdr;
2976 gid_address_t src, dst;
2979 gid_address_t * itr_rlocs = 0, * rloc;
2981 mreq_hdr = vlib_buffer_get_current (b);
2982 vlib_buffer_pull (b, sizeof(*mreq_hdr));
2984 // nonce = MREQ_NONCE(mreq_hdr);
2986 if (!MREQ_SMR(mreq_hdr)) {
2987 clib_warning("Only SMR Map-Requests supported for now!");
2992 len = lisp_msg_parse_addr (b, &src);
2996 /* for now we don't do anything with the itr's rlocs */
2997 len = lisp_msg_parse_itr_rlocs (b, &itr_rlocs, MREQ_ITR_RLOC_COUNT(mreq_hdr) + 1);
3001 /* TODO: RLOCs are currently unused, so free them for now */
3002 vec_foreach (rloc, itr_rlocs)
3004 gid_address_free (rloc);
3007 /* parse eid records and send SMR-invoked map-requests */
3008 for (i = 0; i < MREQ_REC_COUNT(mreq_hdr); i++)
3010 memset(&dst, 0, sizeof(dst));
3011 len = lisp_msg_parse_eid_rec (b, &dst);
3014 clib_warning("Can't parse map-request EID-record");
3017 /* send SMR-invoked map-requests */
3018 send_encapsulated_map_request (vm, lcm, &dst, &src, /* invoked */ 1);
3023 lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
3024 vlib_frame_t * from_frame)
3026 u32 n_left_from, * from, * to_next_drop;
3027 lisp_msg_type_e type;
3028 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
3030 from = vlib_frame_vector_args (from_frame);
3031 n_left_from = from_frame->n_vectors;
3034 while (n_left_from > 0)
3036 u32 n_left_to_next_drop;
3038 vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
3039 to_next_drop, n_left_to_next_drop);
3040 while (n_left_from > 0 && n_left_to_next_drop > 0)
3048 to_next_drop[0] = bi0;
3050 n_left_to_next_drop -= 1;
3052 b0 = vlib_get_buffer (vm, bi0);
3054 type = lisp_msg_type(vlib_buffer_get_current (b0));
3057 case LISP_MAP_REPLY:
3058 process_map_reply (lcm, b0);
3060 case LISP_MAP_REQUEST:
3061 process_map_request(vm, lcm, b0);
3064 clib_warning("Unsupported LISP message type %d", type);
3068 b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP];
3070 if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
3076 vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP, n_left_to_next_drop);
3078 return from_frame->n_vectors;
3081 VLIB_REGISTER_NODE (lisp_cp_input_node) = {
3082 .function = lisp_cp_input,
3083 .name = "lisp-cp-input",
3084 .vector_size = sizeof (u32),
3085 .format_trace = format_lisp_cp_input_trace,
3086 .type = VLIB_NODE_TYPE_INTERNAL,
3088 .n_errors = LISP_CP_INPUT_N_ERROR,
3089 .error_strings = lisp_cp_input_error_strings,
3091 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
3094 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
3099 lisp_cp_init (vlib_main_t *vm)
3101 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
3102 clib_error_t * error = 0;
3104 if ((error = vlib_call_init_function (vm, lisp_gpe_init)))
3107 lcm->im4 = &ip4_main;
3108 lcm->im6 = &ip6_main;
3109 lcm->vlib_main = vm;
3110 lcm->vnet_main = vnet_get_main();
3111 lcm->mreq_itr_rlocs = ~0;
3114 gid_dictionary_init (&lcm->mapping_index_by_gid);
3116 /* default vrf mapped to vni 0 */
3117 hash_set(lcm->table_id_by_vni, 0, 0);
3118 hash_set(lcm->vni_by_table_id, 0, 0);
3120 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp,
3121 lisp_cp_input_node.index, 1 /* is_ip4 */);
3122 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6,
3123 lisp_cp_input_node.index, 0 /* is_ip4 */);
3128 VLIB_INIT_FUNCTION(lisp_cp_init);