2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vnet/lisp-cp/control.h>
17 #include <vnet/lisp-cp/packets.h>
18 #include <vnet/lisp-cp/lisp_msg_serdes.h>
19 #include <vnet/lisp-gpe/lisp_gpe.h>
21 ip_interface_address_t *
22 ip_interface_get_first_interface_address (ip_lookup_main_t *lm, u32 sw_if_index,
25 vnet_main_t *vnm = vnet_get_main ();
26 vnet_sw_interface_t * swif = vnet_get_sw_interface (vnm, sw_if_index);
27 if (loop && swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
28 sw_if_index = swif->unnumbered_sw_if_index;
30 (vec_len((lm)->if_address_pool_index_by_sw_if_index) > (sw_if_index)) ?
31 vec_elt((lm)->if_address_pool_index_by_sw_if_index, (sw_if_index)) :
33 return pool_elt_at_index((lm)->if_address_pool, ia);
37 ip_interface_get_first_address (ip_lookup_main_t * lm, u32 sw_if_index,
40 ip_interface_address_t * ia;
42 ia = ip_interface_get_first_interface_address (lm, sw_if_index, 1);
45 return ip_interface_address_get_address (lm, ia);
49 ip_interface_get_first_ip_address (lisp_cp_main_t * lcm, u32 sw_if_index,
50 u8 version, ip_address_t * result)
52 ip_lookup_main_t * lm;
55 lm = (version == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
56 addr = ip_interface_get_first_address (lm, sw_if_index, version);
60 ip_address_set (result, addr, version);
65 ip_fib_lookup_with_table (lisp_cp_main_t * lcm, u32 fib_index,
68 if (ip_addr_version (dst) == IP4)
69 return ip4_fib_lookup_with_table (lcm->im4, fib_index, &ip_addr_v4(dst),
72 return ip6_fib_lookup_with_table (lcm->im6, fib_index, &ip_addr_v6(dst));
76 ip_fib_get_egress_iface_for_dst_with_lm (lisp_cp_main_t * lcm,
78 ip_lookup_main_t * lm)
83 adj_index = ip_fib_lookup_with_table (lcm, 0, dst);
84 adj = ip_get_adjacency (lm, adj_index);
89 /* we only want outgoing routes */
90 if (adj->lookup_next_index != IP_LOOKUP_NEXT_ARP
91 && adj->lookup_next_index != IP_LOOKUP_NEXT_REWRITE)
94 return adj->rewrite_header.sw_if_index;
98 * Find the sw_if_index of the interface that would be used to egress towards
102 ip_fib_get_egress_iface_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst)
104 ip_lookup_main_t * lm;
106 lm = ip_addr_version (dst) == IP4 ?
107 &lcm->im4->lookup_main : &lcm->im6->lookup_main;
109 return ip_fib_get_egress_iface_for_dst_with_lm (lcm, dst, lm);
113 * Find first IP of the interface that would be used to egress towards dst.
114 * Returns 1 if the address is found 0 otherwise.
117 ip_fib_get_first_egress_ip_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst,
118 ip_address_t * result)
121 ip_lookup_main_t * lm;
127 ipver = ip_addr_version(dst);
129 lm = (ipver == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
130 si = ip_fib_get_egress_iface_for_dst_with_lm (lcm, dst, lm);
135 /* find the first ip address */
136 addr = ip_interface_get_first_address (lm, si, ipver);
140 ip_address_set (result, addr, ipver);
145 dp_add_del_iface (lisp_cp_main_t * lcm, u32 vni, u8 is_l2, u8 is_add)
147 uword * dp_table, * intf;
148 vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai;
152 dp_table = hash_get(lcm->table_id_by_vni, vni);
156 clib_warning("vni %d not associated to a vrf!", vni);
157 return VNET_API_ERROR_INVALID_VALUE;
162 dp_table = hash_get(lcm->bd_id_by_vni, vni);
165 clib_warning("vni %d not associated to a bridge domain!", vni);
166 return VNET_API_ERROR_INVALID_VALUE;
170 intf = hash_get(is_l2 ? lcm->l2_dp_intf_by_vni :lcm->dp_intf_by_vni, vni);
172 /* enable/disable data-plane interface */
175 /* create interface */
181 ai->dp_table = dp_table[0];
183 vnet_lisp_gpe_add_del_iface (ai, 0);
185 /* keep track of vnis for which interfaces have been created */
186 hash_set(lcm->dp_intf_by_vni, vni, 1);
193 clib_warning("interface for vni %d doesn't exist!", vni);
194 return VNET_API_ERROR_INVALID_VALUE;
199 ai->dp_table = dp_table[0];
200 vnet_lisp_gpe_add_del_iface (ai, 0);
201 hash_unset(lcm->dp_intf_by_vni, vni);
208 dp_del_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index)
210 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, * a = &_a;
211 fwd_entry_t * fe = 0;
213 memset(a, 0, sizeof(*a));
215 feip = hash_get(lcm->fwd_entry_by_mapping_index, dst_map_index);
219 fe = pool_elt_at_index(lcm->fwd_entry_pool, feip[0]);
221 /* delete dp fwd entry */
224 a->locator_pairs = fe->locator_pairs;
225 a->vni = gid_address_vni(&a->rmt_eid);
226 gid_address_copy(&a->rmt_eid, &fe->deid);
228 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
230 /* delete entry in fwd table */
231 hash_unset(lcm->fwd_entry_by_mapping_index, dst_map_index);
232 vec_free(fe->locator_pairs);
233 pool_put(lcm->fwd_entry_pool, fe);
237 * Finds first remote locator with best (lowest) priority that has a local
238 * peer locator with an underlying route to it.
242 get_locator_pairs (lisp_cp_main_t* lcm, mapping_t * lcl_map,
243 mapping_t * rmt_map, locator_pair_t ** locator_pairs)
245 u32 i, limitp = 0, li, found = 0, esi;
246 locator_set_t * rmt_ls, * lcl_ls;
247 ip_address_t _lcl_addr, * lcl_addr = &_lcl_addr;
248 locator_t * lp, * rmt = 0;
252 rmt_ls = pool_elt_at_index(lcm->locator_set_pool, rmt_map->locator_set_index);
253 lcl_ls = pool_elt_at_index(lcm->locator_set_pool, lcl_map->locator_set_index);
255 if (!rmt_ls || vec_len(rmt_ls->locator_indices) == 0)
262 /* find unvisited remote locator with best priority */
263 for (i = 0; i < vec_len(rmt_ls->locator_indices); i++)
265 if (0 != hash_get(checked, i))
268 li = vec_elt(rmt_ls->locator_indices, i);
269 lp = pool_elt_at_index(lcm->locator_pool, li);
271 /* we don't support non-IP locators for now */
272 if (gid_address_type(&lp->address) != GID_ADDR_IP_PREFIX)
275 if ((found && lp->priority == limitp)
276 || (!found && lp->priority >= limitp))
280 /* don't search for locators with lower priority and don't
281 * check this locator again*/
282 limitp = lp->priority;
283 hash_set(checked, i, 1);
287 /* check if a local locator with a route to remote locator exists */
290 /* find egress sw_if_index for rmt locator */
291 esi = ip_fib_get_egress_iface_for_dst (
292 lcm, &gid_address_ip(&rmt->address));
296 for (i = 0; i < vec_len(lcl_ls->locator_indices); i++)
298 li = vec_elt (lcl_ls->locator_indices, i);
299 locator_t * sl = pool_elt_at_index (lcm->locator_pool, li);
301 /* found local locator with the needed sw_if_index*/
302 if (sl->sw_if_index == esi)
304 /* and it has an address */
305 if (0 == ip_interface_get_first_ip_address (lcm,
307 gid_address_ip_version(&rmt->address), lcl_addr))
310 memset(&pair, 0, sizeof(pair));
311 ip_address_copy (&pair.rmt_loc,
312 &gid_address_ip(&rmt->address));
313 ip_address_copy(&pair.lcl_loc, lcl_addr);
314 pair.weight = rmt->weight;
315 vec_add1(locator_pairs[0], pair);
329 dp_add_fwd_entry (lisp_cp_main_t* lcm, u32 src_map_index, u32 dst_map_index)
331 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, * a = &_a;
332 mapping_t * src_map, * dst_map;
334 uword * feip = 0, * dpid;
338 memset (a, 0, sizeof(*a));
340 /* remove entry if it already exists */
341 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
343 dp_del_fwd_entry (lcm, src_map_index, dst_map_index);
345 src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index);
346 dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index);
348 /* insert data plane forwarding entry */
351 gid_address_copy (&a->rmt_eid, &dst_map->eid);
352 a->vni = gid_address_vni(&a->rmt_eid);
354 /* get vrf or bd_index associated to vni */
355 type = gid_address_type(&dst_map->eid);
356 if (GID_ADDR_IP_PREFIX == type)
358 dpid = hash_get(lcm->table_id_by_vni, a->vni);
361 clib_warning("vni %d not associated to a vrf!", a->vni);
364 a->table_id = dpid[0];
366 else if (GID_ADDR_MAC == type)
368 dpid = hash_get(lcm->bd_id_by_vni, a->vni);
371 clib_warning("vni %d not associated to a bridge domain !", a->vni);
377 /* find best locator pair that 1) verifies LISP policy 2) are connected */
378 if (0 == get_locator_pairs (lcm, src_map, dst_map, &a->locator_pairs))
382 a->action = dst_map->action;
386 u8 ipver = ip_prefix_version(&gid_address_ippref(&a->rmt_eid));
387 a->decap_next_index = (ipver == IP4) ?
388 LISP_GPE_INPUT_NEXT_IP4_INPUT : LISP_GPE_INPUT_NEXT_IP6_INPUT;
390 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
392 /* add tunnel to fwd entry table XXX check return value from DP insertion */
393 pool_get (lcm->fwd_entry_pool, fe);
394 fe->locator_pairs = a->locator_pairs;
395 gid_address_copy (&fe->deid, &a->rmt_eid);
396 hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
397 fe - lcm->fwd_entry_pool);
401 * Add/remove mapping to/from map-cache. Overwriting not allowed.
404 vnet_lisp_map_cache_add_del (vnet_lisp_add_del_mapping_args_t * a,
405 u32 * map_index_result)
407 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
408 u32 mi, * map_indexp, map_index, i;
409 mapping_t * m, * old_map;
412 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->eid);
413 old_map = mi != ~0 ? pool_elt_at_index (lcm->mapping_pool, mi) : 0;
416 /* TODO check if overwriting and take appropriate actions */
417 if (mi != GID_LOOKUP_MISS && !gid_address_cmp (&old_map->eid,
420 clib_warning ("eid %U found in the eid-table", format_gid_address,
422 return VNET_API_ERROR_VALUE_EXIST;
425 pool_get(lcm->mapping_pool, m);
426 gid_address_copy (&m->eid, &a->eid);
427 m->locator_set_index = a->locator_set_index;
429 m->action = a->action;
432 map_index = m - lcm->mapping_pool;
433 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, map_index,
436 if (pool_is_free_index(lcm->locator_set_pool, a->locator_set_index))
438 clib_warning("Locator set with index %d doesn't exist",
439 a->locator_set_index);
440 return VNET_API_ERROR_INVALID_VALUE;
443 /* add eid to list of eids supported by locator-set */
444 vec_validate (lcm->locator_set_to_eids, a->locator_set_index);
445 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids,
446 a->locator_set_index);
447 vec_add1(eid_indexes[0], map_index);
452 vec_add1(lcm->local_mappings_indexes, map_index);
454 map_index_result[0] = map_index;
458 if (mi == GID_LOOKUP_MISS)
460 clib_warning("eid %U not found in the eid-table", format_gid_address,
462 return VNET_API_ERROR_INVALID_VALUE;
465 /* clear locator-set to eids binding */
466 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids,
467 a->locator_set_index);
468 for (i = 0; i < vec_len(eid_indexes[0]); i++)
470 map_indexp = vec_elt_at_index(eid_indexes[0], i);
471 if (map_indexp[0] == mi)
474 vec_del1(eid_indexes[0], i);
476 /* remove local mark if needed */
477 m = pool_elt_at_index(lcm->mapping_pool, mi);
481 for (k = 0; k < vec_len(lcm->local_mappings_indexes); k++)
483 lm_indexp = vec_elt_at_index(lcm->local_mappings_indexes, k);
484 if (lm_indexp[0] == mi)
487 vec_del1(lcm->local_mappings_indexes, k);
490 /* remove mapping from dictionary */
491 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, 0, 0);
492 gid_address_free (&m->eid);
493 pool_put_index (lcm->mapping_pool, mi);
500 * Add/update/delete mapping to/in/from map-cache.
503 vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a,
504 u32 * map_index_result)
506 uword * dp_table = 0;
510 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
512 if (vnet_lisp_enable_disable_status () == 0)
514 clib_warning ("LISP is disabled!");
515 return VNET_API_ERROR_LISP_DISABLED;
518 vni = gid_address_vni(&a->eid);
519 type = gid_address_type(&a->eid);
520 if (GID_ADDR_IP_PREFIX == type)
521 dp_table = hash_get(lcm->table_id_by_vni, vni);
522 else if (GID_ADDR_MAC == type)
523 dp_table = hash_get(lcm->bd_id_by_vni, vni);
527 clib_warning("vni %d not associated to a %s!", vni,
528 GID_ADDR_IP_PREFIX == type ? "vrf" : "bd");
529 return VNET_API_ERROR_INVALID_VALUE;
532 /* store/remove mapping from map-cache */
533 return vnet_lisp_map_cache_add_del (a, map_index_result);
536 static clib_error_t *
537 lisp_add_del_local_eid_command_fn (vlib_main_t * vm, unformat_input_t * input,
538 vlib_cli_command_t * cmd)
540 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
541 unformat_input_t _line_input, * line_input = &_line_input;
544 gid_address_t * eids = 0;
545 clib_error_t * error = 0;
546 u8 * locator_set_name = 0;
547 u32 locator_set_index = 0, map_index = 0;
549 vnet_lisp_add_del_mapping_args_t _a, * a = &_a;
553 memset (&eid, 0, sizeof (eid));
554 memset (a, 0, sizeof (*a));
556 /* Get a line of input. */
557 if (! unformat_user (input, unformat_line_input, line_input))
560 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
562 if (unformat (line_input, "add"))
564 else if (unformat (line_input, "del"))
566 else if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
568 else if (unformat (line_input, "vni %d", &vni))
569 gid_address_vni (&eid) = vni;
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 */
589 if (GID_ADDR_SRC_DST == gid_address_type(&eid))
591 error = clib_error_return(0, "src/dst is not supported for local EIDs!");
595 gid_address_copy(&a->eid, &eid);
597 a->locator_set_index = locator_set_index;
600 rv = vnet_lisp_add_del_local_mapping (a, &map_index);
603 error = clib_error_return(0, "failed to %s local mapping!",
604 is_add ? "add" : "delete");
608 if (locator_set_name)
609 vec_free (locator_set_name);
610 gid_address_free (&a->eid);
614 VLIB_CLI_COMMAND (lisp_add_del_local_eid_command) = {
615 .path = "lisp eid-table",
616 .short_help = "lisp eid-table add/del [vni <vni>] eid <eid> "
617 "locator-set <locator-set>",
618 .function = lisp_add_del_local_eid_command_fn,
622 vnet_lisp_eid_table_map (u32 vni, u32 dp_id, u8 is_l2, u8 is_add)
624 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
625 uword * dp_idp, * vnip, ** dp_table_by_vni, ** vni_by_dp_table;
627 if (vnet_lisp_enable_disable_status () == 0)
629 clib_warning ("LISP is disabled!");
633 dp_table_by_vni = is_l2 ? &lcm->bd_id_by_vni : &lcm->table_id_by_vni;
634 vni_by_dp_table = is_l2 ? &lcm->vni_by_bd_id : &lcm->vni_by_table_id;
636 if (!is_l2 && (vni == 0 || dp_id == 0))
638 clib_warning ("can't add/del default vni-vrf mapping!");
642 dp_idp = hash_get (dp_table_by_vni[0], vni);
643 vnip = hash_get (vni_by_dp_table[0], dp_id);
649 clib_warning ("vni %d or vrf %d already used in vrf/vni "
650 "mapping!", vni, dp_id);
653 hash_set (dp_table_by_vni[0], vni, dp_id);
654 hash_set (vni_by_dp_table[0], dp_id, vni);
656 /* create dp iface */
657 dp_add_del_iface (lcm, vni, is_l2, 1);
661 if (!dp_idp || !vnip)
663 clib_warning ("vni %d or vrf %d not used in any vrf/vni! "
664 "mapping!", vni, dp_id);
667 hash_unset (dp_table_by_vni[0], vni);
668 hash_unset (vni_by_dp_table[0], dp_id);
670 /* remove dp iface */
671 dp_add_del_iface (lcm, vni, is_l2, 0);
677 static clib_error_t *
678 lisp_eid_table_map_command_fn (vlib_main_t * vm,
679 unformat_input_t * input,
680 vlib_cli_command_t * cmd)
682 u8 is_add = 1, is_l2 = 0;
683 u32 vni = 0, dp_id = 0;
684 unformat_input_t _line_input, * line_input = &_line_input;
686 /* Get a line of input. */
687 if (! unformat_user (input, unformat_line_input, line_input))
690 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
692 if (unformat (line_input, "del"))
694 else if (unformat (line_input, "vni %d", &vni))
696 else if (unformat (line_input, "vrf %d", &dp_id))
698 else if (unformat (line_input, "bd %d", &dp_id))
702 return unformat_parse_error (line_input);
705 vnet_lisp_eid_table_map (vni, dp_id, is_l2, is_add);
709 VLIB_CLI_COMMAND (lisp_eid_table_map_command) = {
710 .path = "lisp eid-table map",
711 .short_help = "lisp eid-table map [del] vni <vni> vrf <vrf> | bd <bdi>",
712 .function = lisp_eid_table_map_command_fn,
716 /* return 0 if the two locator sets are identical 1 otherwise */
718 compare_locators (lisp_cp_main_t *lcm, u32 * old_ls_indexes,
719 locator_t * new_locators)
722 locator_t * old_loc, * new_loc;
724 if (vec_len (old_ls_indexes) != vec_len(new_locators))
727 for (i = 0; i < vec_len(new_locators); i++)
729 old_li = vec_elt(old_ls_indexes, i);
730 old_loc = pool_elt_at_index(lcm->locator_pool, old_li);
732 new_loc = vec_elt_at_index(new_locators, i);
734 if (locator_cmp (old_loc, new_loc))
741 * Adds/removes/updates mapping. Does not program forwarding.
743 * @param eid end-host identifier
744 * @param rlocs vector of remote locators
745 * @param action action for negative map-reply
746 * @param is_add add mapping if non-zero, delete otherwise
747 * @param res_map_index the map-index that was created/updated/removed. It is
748 * set to ~0 if no action is taken.
749 * @return return code
752 vnet_lisp_add_del_mapping (gid_address_t * eid, locator_t * rlocs, u8 action,
753 u8 authoritative, u32 ttl, u8 is_add,
756 vnet_lisp_add_del_mapping_args_t _m_args, * m_args = &_m_args;
757 vnet_lisp_add_del_locator_set_args_t _ls_args, * ls_args = &_ls_args;
758 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
759 u32 mi, ls_index = 0, dst_map_index;
762 if (vnet_lisp_enable_disable_status() == 0)
764 clib_warning ("LISP is disabled!");
765 return VNET_API_ERROR_LISP_DISABLED;
769 res_map_index[0] = ~0;
771 memset (m_args, 0, sizeof (m_args[0]));
772 memset (ls_args, 0, sizeof (ls_args[0]));
774 ls_args->locators = rlocs;
776 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, eid);
777 old_map = ((u32) ~0 != mi) ? pool_elt_at_index(lcm->mapping_pool, mi) : 0;
781 /* overwrite: if mapping already exists, decide if locators should be
782 * updated and be done */
783 if (old_map && gid_address_cmp (&old_map->eid, eid) == 0)
785 locator_set_t * old_ls;
787 /* update mapping attributes */
788 old_map->action = action;
789 old_map->authoritative = authoritative;
792 old_ls = pool_elt_at_index(lcm->locator_set_pool,
793 old_map->locator_set_index);
794 if (compare_locators (lcm, old_ls->locator_indices,
797 /* set locator-set index to overwrite */
799 ls_args->index = old_map->locator_set_index;
800 vnet_lisp_add_del_locator_set (ls_args, 0);
802 res_map_index[0] = mi;
811 vnet_lisp_add_del_locator_set (ls_args, &ls_index);
814 gid_address_copy (&m_args->eid, eid);
816 m_args->action = action;
817 m_args->locator_set_index = ls_index;
818 vnet_lisp_map_cache_add_del (m_args, &dst_map_index);
821 res_map_index[0] = dst_map_index;
826 if (old_map == 0 || gid_address_cmp (&old_map->eid, eid) != 0)
828 clib_warning("cannot delete mapping for eid %U", format_gid_address,
834 gid_address_copy (&m_args->eid, eid);
835 m_args->locator_set_index = old_map->locator_set_index;
837 /* delete mapping associated from map-cache */
838 vnet_lisp_map_cache_add_del (m_args, 0);
841 ls_args->index = old_map->locator_set_index;
842 /* delete locator set */
843 vnet_lisp_add_del_locator_set (ls_args, 0);
845 /* return old mapping index */
847 res_map_index[0] = mi;
855 vnet_lisp_clear_all_remote_adjacencies (void)
858 u32 mi, * map_indices = 0, * map_indexp;
859 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
860 vnet_lisp_add_del_mapping_args_t _dm_args, * dm_args = &_dm_args;
861 vnet_lisp_add_del_locator_set_args_t _ls, * ls = &_ls;
863 pool_foreach_index (mi, lcm->mapping_pool,
865 vec_add1 (map_indices, mi);
868 vec_foreach (map_indexp, map_indices)
870 mapping_t * map = pool_elt_at_index (lcm->mapping_pool, map_indexp[0]);
873 dp_del_fwd_entry (lcm, 0, map_indexp[0]);
876 gid_address_copy (&dm_args->eid, &map->eid);
877 dm_args->locator_set_index = map->locator_set_index;
879 /* delete mapping associated to fwd entry */
880 vnet_lisp_map_cache_add_del (dm_args, 0);
884 ls->index = map->locator_set_index;
885 /* delete locator set */
886 rv = vnet_lisp_add_del_locator_set (ls, 0);
894 vec_free (map_indices);
899 * Adds adjacency or removes forwarding entry associated to remote mapping.
900 * Note that adjacencies are not stored, they only result in forwarding entries
904 lisp_add_del_adjacency (lisp_cp_main_t * lcm, gid_address_t * local_eid,
905 gid_address_t * remote_eid, u8 is_add)
907 u32 local_mi, remote_mi = ~0;
909 if (vnet_lisp_enable_disable_status () == 0)
911 clib_warning ("LISP is disabled!");
912 return VNET_API_ERROR_LISP_DISABLED;
915 remote_mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, remote_eid);
916 if (GID_LOOKUP_MISS == remote_mi)
918 clib_warning("Remote eid %U not found. Cannot add adjacency!",
919 format_gid_address, remote_eid);
926 /* TODO 1) check if src/dst 2) once we have src/dst working, use it in
929 /* check if source eid has an associated mapping. If pitr mode is on,
930 * just use the pitr's mapping */
931 local_mi = lcm->lisp_pitr ? lcm->pitr_map_index :
932 gid_dictionary_lookup (&lcm->mapping_index_by_gid, local_eid);
935 if (GID_LOOKUP_MISS == local_mi)
937 clib_warning("Local eid %U not found. Cannot add adjacency!",
938 format_gid_address, local_eid);
943 /* update forwarding */
944 dp_add_fwd_entry (lcm, local_mi, remote_mi);
947 dp_del_fwd_entry (lcm, 0, remote_mi);
953 vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a)
955 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
956 return lisp_add_del_adjacency(lcm, &a->seid, &a->deid, a->is_add);
960 * Handler for add/del remote mapping CLI.
962 * @param vm vlib context
963 * @param input input from user
965 * @return pointer to clib error structure
967 static clib_error_t *
968 lisp_add_del_remote_mapping_command_fn (vlib_main_t * vm,
969 unformat_input_t * input,
970 vlib_cli_command_t * cmd)
972 clib_error_t * error = 0;
973 unformat_input_t _line_input, * line_input = &_line_input;
974 u8 is_add = 1, del_all = 0;
975 locator_t rloc, * rlocs = 0, * curr_rloc = 0;
978 u32 vni, action = ~0, p, w;
981 /* Get a line of input. */
982 if (! unformat_user (input, unformat_line_input, line_input))
985 memset(&eid, 0, sizeof(eid));
986 memset(&rloc, 0, sizeof(rloc));
988 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
990 if (unformat (line_input, "del-all"))
992 else if (unformat (line_input, "del"))
994 else if (unformat (line_input, "add"))
996 else if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
998 else if (unformat (line_input, "vni %u", &vni))
1000 gid_address_vni (&eid) = vni;
1002 else if (unformat (line_input, "p %d w %d", &p, &w))
1006 clib_warning ("No RLOC configured for setting priority/weight!");
1009 curr_rloc->priority = p;
1010 curr_rloc->weight = w;
1012 else if (unformat (line_input, "rloc %U", unformat_ip_address,
1013 &gid_address_ip(&rloc.address)))
1015 vec_add1 (rlocs, rloc);
1016 curr_rloc = &rlocs[vec_len (rlocs) - 1];
1018 else if (unformat (line_input, "action %U",
1019 unformat_negative_mapping_action, &action))
1023 clib_warning ("parse error");
1030 clib_warning ("missing eid!");
1036 if (is_add && (~0 == action)
1037 && 0 == vec_len (rlocs))
1039 clib_warning ("no action set for negative map-reply!");
1045 vnet_lisp_clear_all_remote_adjacencies ();
1049 /* TODO build src/dst with seid*/
1051 /* if it's a delete, clean forwarding */
1054 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1055 rv = lisp_add_del_adjacency (lcm, 0, &eid, /* is_add */ 0);
1062 /* add as static remote mapping, i.e., not authoritative and infinite
1064 rv = vnet_lisp_add_del_mapping (&eid, rlocs, action, 0, ~0, is_add, 0);
1067 clib_warning("failed to %s remote mapping!", is_add ? "add" : "delete");
1071 unformat_free (line_input);
1075 VLIB_CLI_COMMAND (lisp_add_del_remote_mapping_command) = {
1076 .path = "lisp remote-mapping",
1077 .short_help = "lisp remote-mapping add|del [del-all] vni <vni> "
1078 "eid <est-eid> [action <no-action|natively-forward|"
1079 "send-map-request|drop>] rloc <dst-locator> p <prio> w <weight> "
1080 "[rloc <dst-locator> ... ]",
1081 .function = lisp_add_del_remote_mapping_command_fn,
1085 * Handler for add/del adjacency CLI.
1087 static clib_error_t *
1088 lisp_add_del_adjacency_command_fn (vlib_main_t * vm, unformat_input_t * input,
1089 vlib_cli_command_t * cmd)
1091 clib_error_t * error = 0;
1092 unformat_input_t _line_input, * line_input = &_line_input;
1093 vnet_lisp_add_del_adjacency_args_t _a, * a = &_a;
1095 locator_t rloc, * rlocs = 0;
1096 ip_prefix_t * deid_ippref, * seid_ippref;
1097 gid_address_t seid, deid;
1098 u8 * dmac = gid_address_mac (&deid);
1099 u8 * smac = gid_address_mac (&seid);
1100 u8 deid_set = 0, seid_set = 0;
1102 u32 vni, action = ~0;
1105 /* Get a line of input. */
1106 if (! unformat_user (input, unformat_line_input, line_input))
1109 memset(&deid, 0, sizeof(deid));
1110 memset(&seid, 0, sizeof(seid));
1111 memset(&rloc, 0, sizeof(rloc));
1113 seid_ippref = &gid_address_ippref(&seid);
1114 deid_ippref = &gid_address_ippref(&deid);
1116 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1118 if (unformat (line_input, "del"))
1120 else if (unformat (line_input, "add"))
1122 else if (unformat (line_input, "deid %U",
1123 unformat_ip_prefix, deid_ippref))
1125 gid_address_type (&deid) = GID_ADDR_IP_PREFIX;
1128 else if (unformat (line_input, "deid %U",
1129 unformat_mac_address, dmac))
1131 gid_address_type (&deid) = GID_ADDR_MAC;
1134 else if (unformat (line_input, "vni %u", &vni))
1136 gid_address_vni (&seid) = vni;
1137 gid_address_vni (&deid) = vni;
1139 else if (unformat (line_input, "seid %U",
1140 unformat_ip_prefix, seid_ippref))
1142 gid_address_type (&seid) = GID_ADDR_IP_PREFIX;
1145 else if (unformat (line_input, "seid %U",
1146 unformat_mac_address, smac))
1148 gid_address_type (&seid) = GID_ADDR_MAC;
1153 clib_warning ("parse error");
1160 clib_warning ("missing deid!");
1164 if (GID_ADDR_IP_PREFIX == gid_address_type (&deid))
1166 /* if seid not set, make sure the ip version is the same as that
1167 * of the deid. This ensures the seid to be configured will be
1168 * either 0/0 or ::/0 */
1170 ip_prefix_version(seid_ippref) = ip_prefix_version(deid_ippref);
1173 (ip_prefix_version (deid_ippref)
1174 != ip_prefix_version(seid_ippref)))
1176 clib_warning ("source and destination EIDs are not"
1177 " in the same IP family!");
1182 if (is_add && (~0 == action)
1183 && 0 == vec_len (rlocs))
1185 clib_warning ("no action set for negative map-reply!");
1189 memset(a, 0, sizeof(a[0]));
1190 gid_address_copy (&a->seid, &deid);
1191 gid_address_copy (&a->deid, &seid);
1194 rv = vnet_lisp_add_del_adjacency (a);
1197 clib_warning("failed to %s adjacency!", is_add ? "add" : "delete");
1200 unformat_free (line_input);
1206 VLIB_CLI_COMMAND (lisp_add_del_adjacency_command) = {
1207 .path = "lisp adjacency",
1208 .short_help = "lisp adjacency add|del vni <vni>"
1209 "deid <dest-eid> seid <src-eid> [action <no-action|natively-forward|"
1210 "send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
1211 .function = lisp_add_del_adjacency_command_fn,
1215 static clib_error_t *
1216 lisp_show_map_resolvers_command_fn (vlib_main_t * vm,
1217 unformat_input_t * input,
1218 vlib_cli_command_t * cmd)
1220 ip_address_t * addr;
1221 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1223 vec_foreach (addr, lcm->map_resolvers)
1225 vlib_cli_output (vm, "%U", format_ip_address, addr);
1230 VLIB_CLI_COMMAND (lisp_show_map_resolvers_command) = {
1231 .path = "show lisp map-resolvers",
1232 .short_help = "show lisp map-resolvers",
1233 .function = lisp_show_map_resolvers_command_fn,
1237 vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add)
1239 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1240 u32 locator_set_index = ~0;
1244 if (vnet_lisp_enable_disable_status () == 0)
1246 clib_warning ("LISP is disabled!");
1247 return VNET_API_ERROR_LISP_DISABLED;
1250 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
1253 clib_warning ("locator-set %v doesn't exist", locator_set_name);
1256 locator_set_index = p[0];
1260 pool_get (lcm->mapping_pool, m);
1261 m->locator_set_index = locator_set_index;
1263 lcm->pitr_map_index = m - lcm->mapping_pool;
1265 /* enable pitr mode */
1270 /* remove pitr mapping */
1271 pool_put_index (lcm->mapping_pool, lcm->pitr_map_index);
1273 /* disable pitr mode */
1279 static clib_error_t *
1280 lisp_pitr_set_locator_set_command_fn (vlib_main_t * vm,
1281 unformat_input_t * input,
1282 vlib_cli_command_t * cmd)
1284 u8 locator_name_set = 0;
1285 u8 * locator_set_name = 0;
1287 unformat_input_t _line_input, * line_input = &_line_input;
1288 clib_error_t * error = 0;
1291 /* Get a line of input. */
1292 if (! unformat_user (input, unformat_line_input, line_input))
1295 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1297 if (unformat (line_input, "ls %_%v%_", &locator_set_name))
1298 locator_name_set = 1;
1299 else if (unformat (line_input, "disable"))
1302 return clib_error_return (0, "parse error");
1305 if (!locator_name_set)
1307 clib_warning ("No locator set specified!");
1310 rv = vnet_lisp_pitr_set_locator_set (locator_set_name, is_add);
1313 error = clib_error_return(0, "failed to %s pitr!",
1314 is_add ? "add" : "delete");
1318 if (locator_set_name)
1319 vec_free (locator_set_name);
1323 VLIB_CLI_COMMAND (lisp_pitr_set_locator_set_command) = {
1324 .path = "lisp pitr",
1325 .short_help = "lisp pitr [disable] ls <locator-set-name>",
1326 .function = lisp_pitr_set_locator_set_command_fn,
1329 static clib_error_t *
1330 lisp_show_pitr_command_fn (vlib_main_t * vm,
1331 unformat_input_t * input,
1332 vlib_cli_command_t * cmd)
1334 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1339 vlib_cli_output (vm, "%=20s%=16s",
1340 "pitr", lcm->lisp_pitr ? "locator-set" : "");
1342 if (!lcm->lisp_pitr) {
1343 vlib_cli_output (vm, "%=20s", "disable");
1347 if (~0 == lcm->pitr_map_index) {
1348 tmp_str = format(0, "N/A");
1350 m = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
1351 if (~0 != m->locator_set_index) {
1352 ls = pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index);
1353 tmp_str = format(0, "%s", ls->name);
1355 tmp_str = format(0, "N/A");
1358 vec_add1(tmp_str, 0);
1360 vlib_cli_output (vm, "%=20s%=16s",
1368 VLIB_CLI_COMMAND (lisp_show_pitr_command) = {
1369 .path = "show lisp pitr",
1370 .short_help = "Show pitr",
1371 .function = lisp_show_pitr_command_fn,
1375 format_eid_entry (u8 * s, va_list * args)
1377 vnet_main_t * vnm = va_arg (*args, vnet_main_t *);
1378 lisp_cp_main_t * lcm = va_arg (*args, lisp_cp_main_t *);
1379 mapping_t * mapit = va_arg (*args, mapping_t *);
1380 locator_set_t * ls = va_arg (*args, locator_set_t *);
1381 gid_address_t * gid = &mapit->eid;
1382 u32 ttl = mapit->ttl;
1383 u8 aut = mapit->authoritative;
1388 u8 * type = ls->local ? format(0, "local(%s)", ls->name)
1389 : format(0, "remote");
1391 if (vec_len (ls->locator_indices) == 0)
1393 s = format (s, "%-35U%-30s%-20u%-u", format_gid_address, gid,
1398 vec_foreach (loc_index, ls->locator_indices)
1400 locator_t * l = pool_elt_at_index (lcm->locator_pool, loc_index[0]);
1402 loc = format (0, "%U", format_vnet_sw_if_index_name, vnm,
1405 loc = format (0, "%U", format_ip_address,
1406 &gid_address_ip (&l->address));
1410 s = format (s, "%-35U%-20s%-30v%-20u%-u\n", format_gid_address,
1411 gid, type, loc, ttl, aut);
1415 s = format (s, "%55s%v\n", "", loc);
1421 static clib_error_t *
1422 lisp_show_eid_table_command_fn (vlib_main_t * vm,
1423 unformat_input_t * input,
1424 vlib_cli_command_t * cmd)
1426 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1428 unformat_input_t _line_input, * line_input = &_line_input;
1434 memset (&eid, 0, sizeof(eid));
1436 /* Get a line of input. */
1437 if (!unformat_user (input, unformat_line_input, line_input))
1440 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1442 if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
1444 else if (unformat (line_input, "local"))
1446 else if (unformat(line_input, "remote"))
1449 return clib_error_return (0, "parse error: '%U'",
1450 format_unformat_error, line_input);
1453 vlib_cli_output (vm, "%-35s%-20s%-30s%-20s%-s",
1454 "EID", "type", "locators", "ttl", "autoritative");
1458 pool_foreach (mapit, lcm->mapping_pool,
1460 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1461 mapit->locator_set_index);
1462 if (filter && !((1 == filter && ls->local) ||
1463 (2 == filter && !ls->local)))
1467 vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
1473 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &eid);
1477 mapit = pool_elt_at_index (lcm->mapping_pool, mi);
1478 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1479 mapit->locator_set_index);
1481 if (filter && !((1 == filter && ls->local) ||
1482 (2 == filter && !ls->local)))
1487 vlib_cli_output (vm, "%U,", format_eid_entry, lcm->vnet_main,
1494 VLIB_CLI_COMMAND (lisp_cp_show_eid_table_command) = {
1495 .path = "show lisp eid-table",
1496 .short_help = "Shows EID table",
1497 .function = lisp_show_eid_table_command_fn,
1500 /* cleans locator to locator-set data and removes locators not part of
1501 * any locator-set */
1503 clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi)
1505 u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes, *to_be_deleted = 0;
1506 locator_set_t * ls = pool_elt_at_index(lcm->locator_set_pool, lsi);
1507 for (i = 0; i < vec_len(ls->locator_indices); i++)
1509 loc_indexp = vec_elt_at_index(ls->locator_indices, i);
1510 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1512 for (j = 0; j < vec_len(ls_indexes[0]); j++)
1514 ls_indexp = vec_elt_at_index(ls_indexes[0], j);
1515 if (ls_indexp[0] == lsi)
1519 /* delete index for removed locator-set*/
1520 vec_del1(ls_indexes[0], j);
1522 /* delete locator if it's part of no locator-set */
1523 if (vec_len (ls_indexes[0]) == 0)
1525 pool_put_index (lcm->locator_pool, loc_indexp[0]);
1526 vec_add1 (to_be_deleted, i);
1532 for (i = 0; i < vec_len (to_be_deleted); i++)
1534 loc_indexp = vec_elt_at_index (to_be_deleted, i);
1535 vec_del1 (ls->locator_indices, loc_indexp[0]);
1537 vec_free (to_be_deleted);
1541 static inline uword *
1542 get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p)
1544 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1549 /* find locator-set */
1552 p = hash_get_mem(lcm->locator_set_index_by_name, a->name);
1563 is_locator_in_locator_set (lisp_cp_main_t * lcm, locator_set_t * ls,
1570 ASSERT(loc != NULL);
1572 vec_foreach(locit, ls->locator_indices)
1574 itloc = pool_elt_at_index(lcm->locator_pool, locit[0]);
1575 if ((ls->local && itloc->sw_if_index == loc->sw_if_index) ||
1576 (!ls->local && !gid_address_cmp(&itloc->address, &loc->address)))
1578 clib_warning("Duplicate locator");
1579 return VNET_API_ERROR_VALUE_EXIST;
1587 remove_locator_from_locator_set (locator_set_t * ls, u32 * locit, u32 ls_index,
1590 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1591 u32 ** ls_indexes = NULL;
1594 ASSERT(locit != NULL);
1596 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1598 pool_put_index(lcm->locator_pool, locit[0]);
1599 vec_del1(ls->locator_indices, loc_id);
1600 vec_del1(ls_indexes[0], ls_index);
1604 vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a,
1605 locator_set_t * ls, u32 * ls_result)
1607 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1608 locator_t * loc = NULL, *itloc = NULL;
1609 uword _p = (u32)~0, * p = &_p;
1610 u32 loc_index = ~0, ls_index = ~0, * locit = NULL, ** ls_indexes = NULL;
1616 if (vnet_lisp_enable_disable_status () == 0)
1618 clib_warning ("LISP is disabled!");
1619 return VNET_API_ERROR_LISP_DISABLED;
1622 p = get_locator_set_index(a, p);
1625 clib_warning("locator-set %v doesn't exist", a->name);
1626 return VNET_API_ERROR_INVALID_ARGUMENT;
1631 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1634 clib_warning("locator-set %d to be overwritten doesn't exist!",
1636 return VNET_API_ERROR_INVALID_ARGUMENT;
1644 ls_result[0] = p[0];
1646 /* allocate locators */
1647 vec_foreach (itloc, a->locators)
1649 ret = is_locator_in_locator_set(lcm, ls, itloc);
1655 pool_get(lcm->locator_pool, loc);
1657 loc_index = loc - lcm->locator_pool;
1659 vec_add1(ls->locator_indices, loc_index);
1661 vec_validate (lcm->locator_to_locator_sets, loc_index);
1662 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
1664 vec_add1(ls_indexes[0], ls_index);
1671 itloc = a->locators;
1673 vec_foreach (locit, ls->locator_indices)
1675 loc = pool_elt_at_index(lcm->locator_pool, locit[0]);
1677 if (loc->local && loc->sw_if_index == itloc->sw_if_index)
1679 remove_locator_from_locator_set(ls, locit,
1682 if (0 == loc->local &&
1683 !gid_address_cmp(&loc->address, &itloc->address))
1685 remove_locator_from_locator_set(ls, locit,
1697 vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
1700 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1702 uword _p = (u32)~0, * p = &_p;
1707 if (vnet_lisp_enable_disable_status () == 0)
1709 clib_warning ("LISP is disabled!");
1710 return VNET_API_ERROR_LISP_DISABLED;
1715 p = get_locator_set_index(a, p);
1718 if (p && p[0] != (u32)~0)
1720 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1723 clib_warning("locator-set %d to be overwritten doesn't exist!",
1728 /* clean locator to locator-set vectors and remove locators if
1729 * they're not part of another locator-set */
1730 clean_locator_to_locator_set (lcm, p[0]);
1732 /* remove locator indices from locator set */
1733 vec_free(ls->locator_indices);
1738 ls_result[0] = p[0];
1740 /* new locator-set */
1743 pool_get(lcm->locator_set_pool, ls);
1744 memset(ls, 0, sizeof(*ls));
1745 ls_index = ls - lcm->locator_set_pool;
1749 ls->name = vec_dup(a->name);
1751 if (!lcm->locator_set_index_by_name)
1752 lcm->locator_set_index_by_name = hash_create_vec(
1753 /* size */0, sizeof(ls->name[0]), sizeof(uword));
1754 hash_set_mem(lcm->locator_set_index_by_name, ls->name, ls_index);
1756 /* mark as local locator-set */
1757 vec_add1(lcm->local_locator_set_indexes, ls_index);
1759 ls->local = a->local;
1761 ls_result[0] = ls_index;
1764 ret = vnet_lisp_add_del_locator(a, ls, NULL);
1772 p = get_locator_set_index(a, p);
1775 clib_warning("locator-set %v doesn't exists", a->name);
1779 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
1782 clib_warning("locator-set with index %d doesn't exists", p[0]);
1786 if (lcm->mreq_itr_rlocs == p[0])
1788 clib_warning ("Can't delete the locator-set used to constrain "
1789 "the itr-rlocs in map-requests!");
1793 if (vec_len(lcm->locator_set_to_eids) != 0)
1795 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, p[0]);
1796 if (vec_len(eid_indexes[0]) != 0)
1798 clib_warning ("Can't delete a locator that supports a mapping!");
1803 /* clean locator to locator-sets data */
1804 clean_locator_to_locator_set (lcm, p[0]);
1810 vec_foreach_index(it, lcm->local_locator_set_indexes)
1812 lsi = vec_elt(lcm->local_locator_set_indexes, it);
1815 vec_del1(lcm->local_locator_set_indexes, it);
1819 hash_unset_mem(lcm->locator_set_index_by_name, ls->name);
1822 vec_free(ls->locator_indices);
1823 pool_put(lcm->locator_set_pool, ls);
1829 vnet_lisp_enable_disable (u8 is_enable)
1832 clib_error_t * error = 0;
1833 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1834 vnet_lisp_gpe_enable_disable_args_t _a, * a = &_a;
1836 a->is_en = is_enable;
1837 error = vnet_lisp_gpe_enable_disable (a);
1840 return clib_error_return (0, "failed to %s data-plane!",
1841 a->is_en ? "enable" : "disable");
1846 /* enable all l2 and l3 ifaces */
1847 hash_foreach(vni, dp_table, lcm->table_id_by_vni, ({
1848 dp_add_del_iface(lcm, vni, 0, 1);
1851 hash_foreach(vni, dp_table, lcm->bd_id_by_vni, ({
1852 dp_add_del_iface(lcm, vni, /* is_l2 */ 1, 1);
1857 /* clear interface table */
1858 hash_free(lcm->dp_intf_by_vni);
1859 hash_free(lcm->fwd_entry_by_mapping_index);
1860 pool_free(lcm->fwd_entry_pool);
1863 /* update global flag */
1864 lcm->is_enabled = is_enable;
1869 static clib_error_t *
1870 lisp_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input,
1871 vlib_cli_command_t * cmd)
1873 unformat_input_t _line_input, * line_input = &_line_input;
1877 /* Get a line of input. */
1878 if (! unformat_user (input, unformat_line_input, line_input))
1881 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1883 if (unformat (line_input, "enable"))
1888 else if (unformat (line_input, "disable"))
1892 return clib_error_return (0, "parse error: '%U'",
1893 format_unformat_error, line_input);
1898 return clib_error_return (0, "state not set");
1900 return vnet_lisp_enable_disable (is_enabled);
1903 VLIB_CLI_COMMAND (lisp_cp_enable_disable_command) = {
1905 .short_help = "lisp [enable|disable]",
1906 .function = lisp_enable_disable_command_fn,
1910 vnet_lisp_enable_disable_status (void)
1912 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1913 return lcm->is_enabled;
1917 format_lisp_status (u8 * s, va_list * args)
1919 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1920 return format (s, "%s", lcm->is_enabled ? "enabled" : "disabled");
1923 static clib_error_t *
1924 lisp_show_status_command_fn (vlib_main_t * vm, unformat_input_t * input,
1925 vlib_cli_command_t * cmd)
1928 msg = format (msg, "feature: %U\ngpe: %U\n",
1929 format_lisp_status, format_vnet_lisp_gpe_status);
1930 vlib_cli_output (vm, "%v", msg);
1935 VLIB_CLI_COMMAND (lisp_show_status_command) = {
1936 .path = "show lisp status",
1937 .short_help = "show lisp status",
1938 .function = lisp_show_status_command_fn,
1941 static clib_error_t *
1942 lisp_show_eid_table_map_command_fn (vlib_main_t * vm, unformat_input_t * input,
1943 vlib_cli_command_t * cmd)
1946 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
1948 vlib_cli_output (vm, "%=10s%=10s", "VNI", "VRF");
1949 hash_foreach_pair (p, lcm->table_id_by_vni,
1951 vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
1956 VLIB_CLI_COMMAND (lisp_show_eid_table_map_command) = {
1957 .path = "show lisp eid-table map",
1958 .short_help = "show lisp eid-table vni to vrf mappings",
1959 .function = lisp_show_eid_table_map_command_fn,
1962 static clib_error_t *
1963 lisp_add_del_locator_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
1964 vlib_cli_command_t * cmd)
1966 lisp_gpe_main_t * lgm = &lisp_gpe_main;
1967 vnet_main_t * vnm = lgm->vnet_main;
1968 unformat_input_t _line_input, * line_input = &_line_input;
1970 clib_error_t * error = 0;
1971 u8 * locator_set_name = 0;
1972 locator_t locator, * locators = 0;
1973 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
1977 memset(&locator, 0, sizeof(locator));
1978 memset(a, 0, sizeof(a[0]));
1980 /* Get a line of input. */
1981 if (! unformat_user (input, unformat_line_input, line_input))
1984 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1986 if (unformat (line_input, "add %_%v%_", &locator_set_name))
1988 else if (unformat (line_input, "del %_%v%_", &locator_set_name))
1990 else if (unformat (line_input, "iface %U p %d w %d",
1991 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
1992 &locator.priority, &locator.weight))
1995 vec_add1(locators, locator);
1999 error = unformat_parse_error(line_input);
2004 a->name = locator_set_name;
2005 a->locators = locators;
2009 rv = vnet_lisp_add_del_locator_set(a, &ls_index);
2012 error = clib_error_return(0, "failed to %s locator-set!",
2013 is_add ? "add" : "delete");
2018 if (locator_set_name)
2019 vec_free (locator_set_name);
2023 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_set_command) = {
2024 .path = "lisp locator-set",
2025 .short_help = "lisp locator-set add/del <name> [iface <iface-name> "
2026 "p <priority> w <weight>]",
2027 .function = lisp_add_del_locator_set_command_fn,
2030 static clib_error_t *
2031 lisp_add_del_locator_in_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
2032 vlib_cli_command_t * cmd)
2034 lisp_gpe_main_t * lgm = &lisp_gpe_main;
2035 vnet_main_t * vnm = lgm->vnet_main;
2036 unformat_input_t _line_input, * line_input = &_line_input;
2038 clib_error_t * error = 0;
2039 u8 * locator_set_name = 0;
2040 u8 locator_set_name_set = 0;
2041 locator_t locator, * locators = 0;
2042 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
2045 memset(&locator, 0, sizeof(locator));
2046 memset(a, 0, sizeof(a[0]));
2048 /* Get a line of input. */
2049 if (! unformat_user (input, unformat_line_input, line_input))
2052 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2054 if (unformat (line_input, "add"))
2056 else if (unformat (line_input, "del"))
2058 else if (unformat(line_input, "locator-set %_%v%_", &locator_set_name))
2059 locator_set_name_set = 1;
2060 else if (unformat (line_input, "iface %U p %d w %d",
2061 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
2062 &locator.priority, &locator.weight))
2065 vec_add1(locators, locator);
2069 error = unformat_parse_error(line_input);
2074 if (!locator_set_name_set)
2076 error = clib_error_return(0, "locator_set name not set!");
2080 a->name = locator_set_name;
2081 a->locators = locators;
2085 vnet_lisp_add_del_locator(a, 0, &ls_index);
2089 vec_free (locator_set_name);
2093 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_in_set_command) = {
2094 .path = "lisp locator",
2095 .short_help = "lisp locator add/del locator-set <name> iface <iface-name> "
2096 "p <priority> w <weight>",
2097 .function = lisp_add_del_locator_in_set_command_fn,
2100 static clib_error_t *
2101 lisp_cp_show_locator_sets_command_fn (vlib_main_t * vm,
2102 unformat_input_t * input,
2103 vlib_cli_command_t * cmd)
2105 locator_set_t * lsit;
2108 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2110 vlib_cli_output (vm, "%=20s%=16s%=16s%=16s", "Locator-set", "Locator",
2111 "Priority", "Weight");
2112 pool_foreach (lsit, lcm->locator_set_pool,
2118 msg = format (msg, "%=16v", lsit->name);
2122 msg = format (msg, "%=16s", "remote");
2124 vec_foreach (locit, lsit->locator_indices)
2128 msg = format (msg, "%16s", " ");
2130 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
2132 msg = format (msg, "%16d%16d%16d\n", loc->sw_if_index, loc->priority,
2135 msg = format (msg, "%16U%16d%16d\n", format_ip_address,
2136 &gid_address_ip(&loc->address), loc->priority,
2140 vlib_cli_output (vm, "%v", msg);
2146 VLIB_CLI_COMMAND (lisp_cp_show_locator_sets_command) = {
2147 .path = "show lisp locator-set",
2148 .short_help = "Shows locator-sets",
2149 .function = lisp_cp_show_locator_sets_command_fn,
2153 vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
2155 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2156 ip_address_t * addr;
2159 if (vnet_lisp_enable_disable_status () == 0)
2161 clib_warning ("LISP is disabled!");
2162 return VNET_API_ERROR_LISP_DISABLED;
2167 vec_foreach(addr, lcm->map_resolvers)
2169 if (!ip_address_cmp (addr, &a->address))
2171 clib_warning("map-resolver %U already exists!", format_ip_address,
2176 vec_add1(lcm->map_resolvers, a->address);
2180 for (i = 0; i < vec_len(lcm->map_resolvers); i++)
2182 addr = vec_elt_at_index(lcm->map_resolvers, i);
2183 if (!ip_address_cmp (addr, &a->address))
2185 vec_delete(lcm->map_resolvers, 1, i);
2193 static clib_error_t *
2194 lisp_add_del_map_resolver_command_fn (vlib_main_t * vm,
2195 unformat_input_t * input,
2196 vlib_cli_command_t * cmd)
2198 unformat_input_t _line_input, * line_input = &_line_input;
2199 u8 is_add = 1, addr_set = 0;
2200 ip_address_t ip_addr;
2201 clib_error_t * error = 0;
2203 vnet_lisp_add_del_map_resolver_args_t _a, * a = &_a;
2205 /* Get a line of input. */
2206 if (! unformat_user (input, unformat_line_input, line_input))
2209 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2211 if (unformat (line_input, "add"))
2213 else if (unformat (line_input, "del"))
2215 else if (unformat (line_input, "%U", unformat_ip_address, &ip_addr))
2219 error = unformat_parse_error(line_input);
2226 error = clib_error_return(0, "Map-resolver address must be set!");
2231 a->address = ip_addr;
2232 rv = vnet_lisp_add_del_map_resolver (a);
2235 error = clib_error_return(0, "failed to %s map-resolver!",
2236 is_add ? "add" : "delete");
2243 VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = {
2244 .path = "lisp map-resolver",
2245 .short_help = "lisp map-resolver add/del <ip_address>",
2246 .function = lisp_add_del_map_resolver_command_fn,
2250 vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a)
2252 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2255 if (vnet_lisp_enable_disable_status () == 0)
2257 clib_warning("LISP is disabled!");
2258 return VNET_API_ERROR_LISP_DISABLED;
2263 p = hash_get_mem(lcm->locator_set_index_by_name, a->locator_set_name);
2266 clib_warning("locator-set %v doesn't exist", a->locator_set_name);
2267 return VNET_API_ERROR_INVALID_ARGUMENT;
2270 lcm->mreq_itr_rlocs = p[0];
2274 lcm->mreq_itr_rlocs = ~0;
2280 static clib_error_t *
2281 lisp_add_del_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2282 unformat_input_t * input,
2283 vlib_cli_command_t * cmd)
2285 unformat_input_t _line_input, * line_input = &_line_input;
2287 u8 * locator_set_name = 0;
2288 clib_error_t * error = 0;
2290 vnet_lisp_add_del_mreq_itr_rloc_args_t _a, * a = &_a;
2292 /* Get a line of input. */
2293 if (! unformat_user (input, unformat_line_input, line_input))
2296 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2298 if (unformat (line_input, "del"))
2300 else if (unformat (line_input, "add %s", &locator_set_name))
2304 error = unformat_parse_error(line_input);
2310 a->locator_set_name = locator_set_name;
2311 rv = vnet_lisp_add_del_mreq_itr_rlocs (a);
2314 error = clib_error_return(0, "failed to %s map-request itr-rlocs!",
2315 is_add ? "add" : "delete");
2318 vec_free(locator_set_name);
2325 VLIB_CLI_COMMAND (lisp_add_del_map_request_command) = {
2326 .path = "lisp map-request itr-rlocs",
2327 .short_help = "lisp map-request itr-rlocs add/del <locator_set_name>",
2328 .function = lisp_add_del_mreq_itr_rlocs_command_fn,
2331 static clib_error_t *
2332 lisp_show_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2333 unformat_input_t * input,
2334 vlib_cli_command_t * cmd)
2336 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
2337 locator_set_t * loc_set;
2339 vlib_cli_output (vm, "%=20s", "itr-rlocs");
2341 if (~0 == lcm->mreq_itr_rlocs)
2346 loc_set = pool_elt_at_index (lcm->locator_set_pool, lcm->mreq_itr_rlocs);
2348 vlib_cli_output (vm, "%=20s", loc_set->name);
2353 VLIB_CLI_COMMAND (lisp_show_map_request_command) = {
2354 .path = "show lisp map-request itr-rlocs",
2355 .short_help = "Shows map-request itr-rlocs",
2356 .function = lisp_show_mreq_itr_rlocs_command_fn,
2359 /* Statistics (not really errors) */
2360 #define foreach_lisp_cp_lookup_error \
2362 _(MAP_REQUESTS_SENT, "map-request sent")
2364 static char * lisp_cp_lookup_error_strings[] = {
2365 #define _(sym,string) string,
2366 foreach_lisp_cp_lookup_error
2372 #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
2373 foreach_lisp_cp_lookup_error
2375 LISP_CP_LOOKUP_N_ERROR,
2376 } lisp_cp_lookup_error_t;
2380 LISP_CP_LOOKUP_NEXT_DROP,
2381 LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
2382 LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
2383 LISP_CP_LOOKUP_N_NEXT,
2384 } lisp_cp_lookup_next_t;
2388 gid_address_t dst_eid;
2389 ip_address_t map_resolver_ip;
2390 } lisp_cp_lookup_trace_t;
2393 format_lisp_cp_lookup_trace (u8 * s, va_list * args)
2395 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2396 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2397 lisp_cp_lookup_trace_t * t = va_arg (*args, lisp_cp_lookup_trace_t *);
2399 s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
2400 format_ip_address, &t->map_resolver_ip, format_gid_address,
2406 get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip,
2407 ip_address_t * sloc)
2409 ip_address_t * mrit;
2411 if (vec_len(lcm->map_resolvers) == 0)
2413 clib_warning("No map-resolver configured");
2417 /* find the first mr ip we have a route to and the ip of the
2418 * iface that has a route to it */
2419 vec_foreach(mrit, lcm->map_resolvers)
2421 if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, mrit, sloc)) {
2422 ip_address_copy(mr_ip, mrit);
2427 clib_warning("Can't find map-resolver and local interface ip!");
2431 static gid_address_t *
2432 build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
2438 ip_interface_address_t * ia = 0;
2439 gid_address_t gid_data, * gid = &gid_data;
2440 gid_address_t * rlocs = 0;
2441 ip_prefix_t * ippref = &gid_address_ippref (gid);
2442 ip_address_t * rloc = &ip_prefix_addr (ippref);
2444 memset (gid, 0, sizeof (gid[0]));
2445 gid_address_type (gid) = GID_ADDR_IP_PREFIX;
2446 for (i = 0; i < vec_len(loc_set->locator_indices); i++)
2448 loc_indexp = vec_elt_at_index(loc_set->locator_indices, i);
2449 loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
2451 /* Add ipv4 locators first TODO sort them */
2452 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
2453 loc->sw_if_index, 1 /* unnumbered */,
2455 addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
2456 ip_address_set (rloc, addr, IP4);
2457 ip_prefix_len (ippref) = 32;
2458 ip_prefix_normalize (ippref);
2459 vec_add1 (rlocs, gid[0]);
2462 /* Add ipv6 locators */
2463 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
2464 loc->sw_if_index, 1 /* unnumbered */,
2466 addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
2467 ip_address_set (rloc, addr, IP6);
2468 ip_prefix_len (ippref) = 128;
2469 ip_prefix_normalize (ippref);
2470 vec_add1 (rlocs, gid[0]);
2476 static vlib_buffer_t *
2477 build_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
2478 gid_address_t * seid, gid_address_t * deid,
2479 locator_set_t * loc_set, ip_address_t * mr_ip,
2480 ip_address_t * sloc, u8 is_smr_invoked,
2481 u64 *nonce_res, u32 * bi_res)
2485 gid_address_t * rlocs = 0;
2487 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
2489 clib_warning ("Can't allocate buffer for Map-Request!");
2493 b = vlib_get_buffer (vm, bi);
2495 /* leave some space for the encap headers */
2496 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
2499 rlocs = build_itr_rloc_list (lcm, loc_set);
2502 lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, nonce_res);
2504 /* push ecm: udp-ip-lisp */
2505 lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid);
2507 /* push outer ip header */
2508 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc,
2518 send_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
2519 gid_address_t * seid, gid_address_t * deid,
2522 u32 next_index, bi = 0, * to_next, map_index;
2526 locator_set_t * loc_set;
2528 pending_map_request_t * pmr;
2529 ip_address_t mr_ip, sloc;
2532 /* get locator-set for seid */
2533 if (!lcm->lisp_pitr)
2535 map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
2536 if (map_index == ~0)
2538 clib_warning("No local mapping found in eid-table for %U!",
2539 format_gid_address, seid);
2543 map = pool_elt_at_index (lcm->mapping_pool, map_index);
2547 clib_warning("Mapping found for src eid %U is not marked as local!",
2548 format_gid_address, seid);
2551 ls_index = map->locator_set_index;
2555 map_index = lcm->pitr_map_index;
2556 map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
2557 ls_index = map->locator_set_index;
2560 /* overwrite locator set if map-request itr-rlocs configured */
2561 if (~0 != lcm->mreq_itr_rlocs)
2563 ls_index = lcm->mreq_itr_rlocs;
2566 loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index);
2568 /* get local iface ip to use in map-request */
2569 if (0 == get_mr_and_local_iface_ip (lcm, &mr_ip, &sloc))
2572 /* build the encapsulated map request */
2573 b = build_encapsulated_map_request (vm, lcm, seid, deid, loc_set, &mr_ip,
2574 &sloc, is_smr_invoked, &nonce, &bi);
2579 /* set fib index to default and lookup node */
2580 vnet_buffer(b)->sw_if_index[VLIB_TX] = 0;
2581 next_index = (ip_addr_version(&mr_ip) == IP4) ?
2582 ip4_lookup_node.index : ip6_lookup_node.index;
2584 f = vlib_get_frame_to_node (vm, next_index);
2586 /* Enqueue the packet */
2587 to_next = vlib_frame_vector_args (f);
2590 vlib_put_frame_to_node (vm, next_index, f);
2592 /* add map-request to pending requests table */
2593 pool_get(lcm->pending_map_requests_pool, pmr);
2594 gid_address_copy (&pmr->src, seid);
2595 gid_address_copy (&pmr->dst, deid);
2596 hash_set(lcm->pending_map_requests_by_nonce, nonce,
2597 pmr - lcm->pending_map_requests_pool);
2601 get_src_and_dst_ip (void *hdr, ip_address_t * src, ip_address_t *dst)
2603 ip4_header_t * ip4 = hdr;
2606 if ((ip4->ip_version_and_header_length & 0xF0) == 0x40)
2608 ip_address_set(src, &ip4->src_address, IP4);
2609 ip_address_set(dst, &ip4->dst_address, IP4);
2614 ip_address_set(src, &ip6->src_address, IP6);
2615 ip_address_set(dst, &ip6->dst_address, IP6);
2620 lisp_get_vni_from_buffer_ip (lisp_cp_main_t * lcm, vlib_buffer_t * b,
2624 u32 vni = ~0, table_id = ~0, fib_index;
2629 ip4_main_t * im4 = &ip4_main;
2630 fib_index = vec_elt (im4->fib_index_by_sw_if_index,
2631 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2632 fib = find_ip4_fib_by_table_index_or_id (im4, fib_index,
2633 IP4_ROUTE_FLAG_FIB_INDEX);
2634 table_id = fib->table_id;
2639 ip6_main_t * im6 = &ip6_main;
2640 fib_index = vec_elt (im6->fib_index_by_sw_if_index,
2641 vnet_buffer (b)->sw_if_index[VLIB_RX]);
2642 fib = find_ip6_fib_by_table_index_or_id (im6, fib_index,
2643 IP6_ROUTE_FLAG_FIB_INDEX);
2644 table_id = fib->table_id;
2647 vnip = hash_get (lcm->vni_by_table_id, table_id);
2651 clib_warning ("vrf %d is not mapped to any vni!", table_id);
2657 lisp_get_vni_from_buffer_eth (lisp_cp_main_t * lcm, vlib_buffer_t * b)
2663 l2input_main_t * l2im = &l2input_main;
2664 l2_input_config_t * config;
2665 l2_bridge_domain_t * bd_config;
2667 sw_if_index0 = vnet_buffer(b)->sw_if_index[VLIB_RX];
2668 config = vec_elt_at_index(l2im->configs, sw_if_index0);
2669 bd_config = vec_elt_at_index (l2im->bd_configs, config->bd_index);
2671 vnip = hash_get (lcm->vni_by_bd_id, bd_config->bd_id);
2675 clib_warning("bridge domain %d is not mapped to any vni!",
2682 get_src_and_dst_eids_from_buffer (lisp_cp_main_t *lcm, vlib_buffer_t * b,
2683 gid_address_t * src, gid_address_t * dst)
2688 type = vnet_buffer(b)->lisp.overlay_afi;
2690 if (LISP_AFI_IP == type || LISP_AFI_IP6 == type)
2693 u8 version, preflen;
2695 gid_address_type(src) = GID_ADDR_IP_PREFIX;
2696 gid_address_type(dst) = GID_ADDR_IP_PREFIX;
2698 ip = vlib_buffer_get_current (b);
2699 get_src_and_dst_ip (ip, &gid_address_ip(src), &gid_address_ip(dst));
2701 version = gid_address_ip_version(src);
2702 preflen = ip_address_max_len (version);
2703 gid_address_ippref_len(src) = preflen;
2704 gid_address_ippref_len(dst) = preflen;
2706 vni = lisp_get_vni_from_buffer_ip (lcm, b, version);
2707 gid_address_vni (dst) = vni;
2708 gid_address_vni (src) = vni;
2710 else if (LISP_AFI_MAC == type)
2712 ethernet_header_t * eh;
2714 eh = vlib_buffer_get_current (b);
2716 gid_address_type(src) = GID_ADDR_MAC;
2717 gid_address_type(dst) = GID_ADDR_MAC;
2718 mac_copy(&gid_address_mac(src), eh->src_address);
2719 mac_copy(&gid_address_mac(dst), eh->dst_address);
2722 vni = lisp_get_vni_from_buffer_eth (lcm, b);
2724 gid_address_vni (dst) = vni;
2725 gid_address_vni (src) = vni;
2730 lisp_cp_lookup (vlib_main_t * vm, vlib_node_runtime_t * node,
2731 vlib_frame_t * from_frame)
2733 u32 * from, * to_next_drop, di, si;
2734 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main();
2735 u32 pkts_mapped = 0;
2736 uword n_left_from, n_left_to_next_drop;
2738 from = vlib_frame_vector_args (from_frame);
2739 n_left_from = from_frame->n_vectors;
2741 while (n_left_from > 0)
2743 vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
2744 to_next_drop, n_left_to_next_drop);
2746 while (n_left_from > 0 && n_left_to_next_drop > 0)
2750 gid_address_t src, dst;
2755 to_next_drop[0] = pi0;
2757 n_left_to_next_drop -= 1;
2759 b0 = vlib_get_buffer (vm, pi0);
2760 b0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
2762 /* src/dst eid pair */
2763 get_src_and_dst_eids_from_buffer (lcm, b0, &src, &dst);
2765 /* if we have remote mapping for destination already in map-chache
2766 add forwarding tunnel directly. If not send a map-request */
2767 di = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst);
2770 mapping_t * m = vec_elt_at_index (lcm->mapping_pool, di);
2771 /* send a map-request also in case of negative mapping entry
2772 with corresponding action */
2773 if (m->action == LISP_SEND_MAP_REQUEST)
2775 /* send map-request */
2776 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
2781 si = gid_dictionary_lookup (&lcm->mapping_index_by_gid,
2785 dp_add_fwd_entry (lcm, si, di);
2791 /* send map-request */
2792 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
2796 if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
2798 lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, b0,
2801 memset(tr, 0, sizeof(*tr));
2802 gid_address_copy (&tr->dst_eid, &dst);
2803 if (vec_len(lcm->map_resolvers) > 0)
2805 clib_memcpy (&tr->map_resolver_ip,
2806 vec_elt_at_index(lcm->map_resolvers, 0),
2807 sizeof(ip_address_t));
2810 gid_address_free (&dst);
2811 gid_address_free (&src);
2814 vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP, n_left_to_next_drop);
2816 vlib_node_increment_counter (vm, node->node_index,
2817 LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
2819 return from_frame->n_vectors;
2822 VLIB_REGISTER_NODE (lisp_cp_lookup_node) = {
2823 .function = lisp_cp_lookup,
2824 .name = "lisp-cp-lookup",
2825 .vector_size = sizeof (u32),
2826 .format_trace = format_lisp_cp_lookup_trace,
2827 .type = VLIB_NODE_TYPE_INTERNAL,
2829 .n_errors = LISP_CP_LOOKUP_N_ERROR,
2830 .error_strings = lisp_cp_lookup_error_strings,
2832 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
2835 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
2836 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
2837 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
2841 /* lisp_cp_input statistics */
2842 #define foreach_lisp_cp_input_error \
2844 _(MAP_REPLIES_RECEIVED, "map-replies received")
2846 static char * lisp_cp_input_error_strings[] = {
2847 #define _(sym,string) string,
2848 foreach_lisp_cp_input_error
2854 #define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
2855 foreach_lisp_cp_input_error
2857 LISP_CP_INPUT_N_ERROR,
2858 } lisp_cp_input_error_t;
2862 LISP_CP_INPUT_NEXT_DROP,
2863 LISP_CP_INPUT_N_NEXT,
2864 } lisp_cp_input_next_t;
2868 gid_address_t dst_eid;
2869 ip4_address_t map_resolver_ip;
2870 } lisp_cp_input_trace_t;
2873 format_lisp_cp_input_trace (u8 * s, va_list * args)
2875 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2876 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2877 CLIB_UNUSED(lisp_cp_input_trace_t * t) = va_arg (*args, lisp_cp_input_trace_t *);
2879 s = format (s, "LISP-CP-INPUT: TODO");
2884 process_map_reply (lisp_cp_main_t * lcm, vlib_buffer_t * b)
2886 u32 len = 0, i, ttl, dst_map_index = 0;
2888 pending_map_request_t * pmr;
2890 map_reply_hdr_t * mrep_hdr;
2894 u8 authoritative, action;
2895 locator_t * locators = 0, * loc;
2897 mrep_hdr = vlib_buffer_get_current (b);
2899 /* Check pending requests table and nonce */
2900 nonce = MREP_NONCE(mrep_hdr);
2901 pmr_index = hash_get(lcm->pending_map_requests_by_nonce, nonce);
2904 clib_warning("No pending map-request entry with nonce %lu!", nonce);
2907 pmr = pool_elt_at_index(lcm->pending_map_requests_pool, pmr_index[0]);
2909 vlib_buffer_pull (b, sizeof(*mrep_hdr));
2911 for (i = 0; i < MREP_REC_COUNT(mrep_hdr); i++)
2914 h = vlib_buffer_get_current (b);
2915 ttl = clib_net_to_host_u32 (MAP_REC_TTL(h));
2916 action = MAP_REC_ACTION(h);
2917 authoritative = MAP_REC_AUTH(h);
2919 len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed);
2922 clib_warning ("Failed to parse mapping record!");
2923 vec_foreach (loc, locators)
2931 /* insert/update mappings cache */
2932 vnet_lisp_add_del_mapping (&deid, locators, action, authoritative, ttl, 1,
2935 /* try to program forwarding only if mapping saved or updated*/
2936 if ((u32) ~0 != dst_map_index)
2937 lisp_add_del_adjacency (lcm, &pmr->src, &deid, 1);
2942 /* remove pending map request entry */
2943 hash_unset(lcm->pending_map_requests_by_nonce, nonce);
2944 pool_put(lcm->pending_map_requests_pool, pmr);
2948 process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm, vlib_buffer_t * b)
2950 map_request_hdr_t * mreq_hdr;
2951 gid_address_t src, dst;
2954 gid_address_t * itr_rlocs = 0, * rloc;
2956 mreq_hdr = vlib_buffer_get_current (b);
2957 vlib_buffer_pull (b, sizeof(*mreq_hdr));
2959 // nonce = MREQ_NONCE(mreq_hdr);
2961 if (!MREQ_SMR(mreq_hdr)) {
2962 clib_warning("Only SMR Map-Requests supported for now!");
2967 len = lisp_msg_parse_addr (b, &src);
2971 /* for now we don't do anything with the itr's rlocs */
2972 len = lisp_msg_parse_itr_rlocs (b, &itr_rlocs, MREQ_ITR_RLOC_COUNT(mreq_hdr) + 1);
2976 /* TODO: RLOCs are currently unused, so free them for now */
2977 vec_foreach (rloc, itr_rlocs)
2979 gid_address_free (rloc);
2982 /* parse eid records and send SMR-invoked map-requests */
2983 for (i = 0; i < MREQ_REC_COUNT(mreq_hdr); i++)
2985 memset(&dst, 0, sizeof(dst));
2986 len = lisp_msg_parse_eid_rec (b, &dst);
2989 clib_warning("Can't parse map-request EID-record");
2992 /* send SMR-invoked map-requests */
2993 send_encapsulated_map_request (vm, lcm, &dst, &src, /* invoked */ 1);
2998 lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
2999 vlib_frame_t * from_frame)
3001 u32 n_left_from, * from, * to_next_drop;
3002 lisp_msg_type_e type;
3003 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
3005 from = vlib_frame_vector_args (from_frame);
3006 n_left_from = from_frame->n_vectors;
3009 while (n_left_from > 0)
3011 u32 n_left_to_next_drop;
3013 vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
3014 to_next_drop, n_left_to_next_drop);
3015 while (n_left_from > 0 && n_left_to_next_drop > 0)
3023 to_next_drop[0] = bi0;
3025 n_left_to_next_drop -= 1;
3027 b0 = vlib_get_buffer (vm, bi0);
3029 type = lisp_msg_type(vlib_buffer_get_current (b0));
3032 case LISP_MAP_REPLY:
3033 process_map_reply (lcm, b0);
3035 case LISP_MAP_REQUEST:
3036 process_map_request(vm, lcm, b0);
3039 clib_warning("Unsupported LISP message type %d", type);
3043 b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP];
3045 if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
3051 vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP, n_left_to_next_drop);
3053 return from_frame->n_vectors;
3056 VLIB_REGISTER_NODE (lisp_cp_input_node) = {
3057 .function = lisp_cp_input,
3058 .name = "lisp-cp-input",
3059 .vector_size = sizeof (u32),
3060 .format_trace = format_lisp_cp_input_trace,
3061 .type = VLIB_NODE_TYPE_INTERNAL,
3063 .n_errors = LISP_CP_INPUT_N_ERROR,
3064 .error_strings = lisp_cp_input_error_strings,
3066 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
3069 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
3074 lisp_cp_init (vlib_main_t *vm)
3076 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
3077 clib_error_t * error = 0;
3079 if ((error = vlib_call_init_function (vm, lisp_gpe_init)))
3082 lcm->im4 = &ip4_main;
3083 lcm->im6 = &ip6_main;
3084 lcm->vlib_main = vm;
3085 lcm->vnet_main = vnet_get_main();
3086 lcm->mreq_itr_rlocs = ~0;
3089 gid_dictionary_init (&lcm->mapping_index_by_gid);
3091 /* default vrf mapped to vni 0 */
3092 hash_set(lcm->table_id_by_vni, 0, 0);
3093 hash_set(lcm->vni_by_table_id, 0, 0);
3095 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp,
3096 lisp_cp_input_node.index, 1 /* is_ip4 */);
3097 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6,
3098 lisp_cp_input_node.index, 0 /* is_ip4 */);
3103 VLIB_INIT_FUNCTION(lisp_cp_init);