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 <vlibmemory/api.h>
17 #include <vnet/lisp-cp/control.h>
18 #include <vnet/lisp-cp/packets.h>
19 #include <vnet/lisp-cp/lisp_msg_serdes.h>
20 #include <vnet/lisp-gpe/lisp_gpe.h>
21 #include <vnet/fib/fib_entry.h>
22 #include <vnet/fib/fib_table.h>
33 queue_map_request (gid_address_t * seid, gid_address_t * deid,
34 u8 smr_invoked, u8 is_resend);
36 ip_interface_address_t *
37 ip_interface_get_first_interface_address (ip_lookup_main_t * lm,
38 u32 sw_if_index, u8 loop)
40 vnet_main_t *vnm = vnet_get_main ();
41 vnet_sw_interface_t *swif = vnet_get_sw_interface (vnm, sw_if_index);
42 if (loop && swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
43 sw_if_index = swif->unnumbered_sw_if_index;
45 (vec_len ((lm)->if_address_pool_index_by_sw_if_index) > (sw_if_index)) ?
46 vec_elt ((lm)->if_address_pool_index_by_sw_if_index, (sw_if_index)) :
48 return pool_elt_at_index ((lm)->if_address_pool, ia);
52 ip_interface_get_first_address (ip_lookup_main_t * lm, u32 sw_if_index,
55 ip_interface_address_t *ia;
57 ia = ip_interface_get_first_interface_address (lm, sw_if_index, 1);
60 return ip_interface_address_get_address (lm, ia);
64 ip_interface_get_first_ip_address (lisp_cp_main_t * lcm, u32 sw_if_index,
65 u8 version, ip_address_t * result)
70 lm = (version == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
71 addr = ip_interface_get_first_address (lm, sw_if_index, version);
75 ip_address_set (result, addr, version);
80 * convert from a LISP address to a FIB prefix
83 ip_address_to_fib_prefix (const ip_address_t * addr, fib_prefix_t * prefix)
85 if (addr->version == IP4)
88 prefix->fp_proto = FIB_PROTOCOL_IP4;
89 memset (&prefix->fp_addr.pad, 0, sizeof (prefix->fp_addr.pad));
90 memcpy (&prefix->fp_addr.ip4, &addr->ip, sizeof (prefix->fp_addr.ip4));
95 prefix->fp_proto = FIB_PROTOCOL_IP6;
96 memcpy (&prefix->fp_addr.ip6, &addr->ip, sizeof (prefix->fp_addr.ip6));
101 * convert from a LISP to a FIB prefix
104 ip_prefix_to_fib_prefix (const ip_prefix_t * ip_prefix,
105 fib_prefix_t * fib_prefix)
107 ip_address_to_fib_prefix (&ip_prefix->addr, fib_prefix);
108 fib_prefix->fp_len = ip_prefix->len;
112 * Find the sw_if_index of the interface that would be used to egress towards
116 ip_fib_get_egress_iface_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst)
118 fib_node_index_t fei;
121 ip_address_to_fib_prefix (dst, &prefix);
123 fei = fib_table_lookup (0, &prefix);
125 return (fib_entry_get_resolving_interface (fei));
129 * Find first IP of the interface that would be used to egress towards dst.
130 * Returns 1 if the address is found 0 otherwise.
133 ip_fib_get_first_egress_ip_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst,
134 ip_address_t * result)
137 ip_lookup_main_t *lm;
141 ASSERT (result != 0);
143 ipver = ip_addr_version (dst);
145 lm = (ipver == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
146 si = ip_fib_get_egress_iface_for_dst (lcm, dst);
151 /* find the first ip address */
152 addr = ip_interface_get_first_address (lm, si, ipver);
156 ip_address_set (result, addr, ipver);
161 dp_add_del_iface (lisp_cp_main_t * lcm, u32 vni, u8 is_l2, u8 is_add)
163 uword *dp_table, *intf;
164 vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai;
168 dp_table = hash_get (lcm->table_id_by_vni, vni);
172 clib_warning ("vni %d not associated to a vrf!", vni);
173 return VNET_API_ERROR_INVALID_VALUE;
178 dp_table = hash_get (lcm->bd_id_by_vni, vni);
181 clib_warning ("vni %d not associated to a bridge domain!", vni);
182 return VNET_API_ERROR_INVALID_VALUE;
186 intf = hash_get (is_l2 ? lcm->l2_dp_intf_by_vni : lcm->dp_intf_by_vni, vni);
188 /* enable/disable data-plane interface */
191 /* create interface */
197 ai->dp_table = dp_table[0];
199 vnet_lisp_gpe_add_del_iface (ai, 0);
201 /* keep track of vnis for which interfaces have been created */
202 hash_set (lcm->dp_intf_by_vni, vni, 1);
209 clib_warning ("interface for vni %d doesn't exist!", vni);
210 return VNET_API_ERROR_INVALID_VALUE;
215 ai->dp_table = dp_table[0];
216 vnet_lisp_gpe_add_del_iface (ai, 0);
217 hash_unset (lcm->dp_intf_by_vni, vni);
224 dp_del_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index)
226 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a;
229 memset (a, 0, sizeof (*a));
231 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
235 fe = pool_elt_at_index (lcm->fwd_entry_pool, feip[0]);
237 /* delete dp fwd entry */
240 a->locator_pairs = fe->locator_pairs;
241 a->vni = gid_address_vni (&fe->deid);
242 gid_address_copy (&a->rmt_eid, &fe->deid);
244 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
246 /* delete entry in fwd table */
247 hash_unset (lcm->fwd_entry_by_mapping_index, dst_map_index);
248 vec_free (fe->locator_pairs);
249 pool_put (lcm->fwd_entry_pool, fe);
253 * Finds first remote locator with best (lowest) priority that has a local
254 * peer locator with an underlying route to it.
258 get_locator_pairs (lisp_cp_main_t * lcm, mapping_t * lcl_map,
259 mapping_t * rmt_map, locator_pair_t ** locator_pairs)
261 u32 i, limitp = 0, li, found = 0, esi;
262 locator_set_t *rmt_ls, *lcl_ls;
263 ip_address_t _lcl_addr, *lcl_addr = &_lcl_addr;
264 locator_t *lp, *rmt = 0;
269 pool_elt_at_index (lcm->locator_set_pool, rmt_map->locator_set_index);
271 pool_elt_at_index (lcm->locator_set_pool, lcl_map->locator_set_index);
273 if (!rmt_ls || vec_len (rmt_ls->locator_indices) == 0)
280 /* find unvisited remote locator with best priority */
281 for (i = 0; i < vec_len (rmt_ls->locator_indices); i++)
283 if (0 != hash_get (checked, i))
286 li = vec_elt (rmt_ls->locator_indices, i);
287 lp = pool_elt_at_index (lcm->locator_pool, li);
289 /* we don't support non-IP locators for now */
290 if (gid_address_type (&lp->address) != GID_ADDR_IP_PREFIX)
293 if ((found && lp->priority == limitp)
294 || (!found && lp->priority >= limitp))
298 /* don't search for locators with lower priority and don't
299 * check this locator again*/
300 limitp = lp->priority;
301 hash_set (checked, i, 1);
305 /* check if a local locator with a route to remote locator exists */
308 /* find egress sw_if_index for rmt locator */
310 ip_fib_get_egress_iface_for_dst (lcm,
311 &gid_address_ip (&rmt->address));
312 if ((u32) ~ 0 == esi)
315 for (i = 0; i < vec_len (lcl_ls->locator_indices); i++)
317 li = vec_elt (lcl_ls->locator_indices, i);
318 locator_t *sl = pool_elt_at_index (lcm->locator_pool, li);
320 /* found local locator with the needed sw_if_index */
321 if (sl->sw_if_index == esi)
323 /* and it has an address */
324 if (0 == ip_interface_get_first_ip_address (lcm,
326 gid_address_ip_version
331 memset (&pair, 0, sizeof (pair));
332 ip_address_copy (&pair.rmt_loc,
333 &gid_address_ip (&rmt->address));
334 ip_address_copy (&pair.lcl_loc, lcl_addr);
335 pair.weight = rmt->weight;
336 vec_add1 (locator_pairs[0], pair);
350 dp_add_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index)
352 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a;
353 mapping_t *src_map, *dst_map;
355 uword *feip = 0, *dpid;
359 memset (a, 0, sizeof (*a));
361 /* remove entry if it already exists */
362 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
364 dp_del_fwd_entry (lcm, src_map_index, dst_map_index);
366 src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index);
367 dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index);
369 /* insert data plane forwarding entry */
372 gid_address_copy (&a->rmt_eid, &dst_map->eid);
373 a->vni = gid_address_vni (&a->rmt_eid);
375 /* get vrf or bd_index associated to vni */
376 type = gid_address_type (&dst_map->eid);
377 if (GID_ADDR_IP_PREFIX == type)
379 dpid = hash_get (lcm->table_id_by_vni, a->vni);
382 clib_warning ("vni %d not associated to a vrf!", a->vni);
385 a->table_id = dpid[0];
387 else if (GID_ADDR_MAC == type)
389 dpid = hash_get (lcm->bd_id_by_vni, a->vni);
392 clib_warning ("vni %d not associated to a bridge domain !", a->vni);
398 /* find best locator pair that 1) verifies LISP policy 2) are connected */
399 if (0 == get_locator_pairs (lcm, src_map, dst_map, &a->locator_pairs))
403 a->action = dst_map->action;
407 u8 ipver = ip_prefix_version (&gid_address_ippref (&a->rmt_eid));
408 a->decap_next_index = (ipver == IP4) ?
409 LISP_GPE_INPUT_NEXT_IP4_INPUT : LISP_GPE_INPUT_NEXT_IP6_INPUT;
411 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
413 /* add tunnel to fwd entry table XXX check return value from DP insertion */
414 pool_get (lcm->fwd_entry_pool, fe);
415 fe->locator_pairs = a->locator_pairs;
416 gid_address_copy (&fe->deid, &a->rmt_eid);
417 hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
418 fe - lcm->fwd_entry_pool);
422 * Add/remove mapping to/from map-cache. Overwriting not allowed.
425 vnet_lisp_map_cache_add_del (vnet_lisp_add_del_mapping_args_t * a,
426 u32 * map_index_result)
428 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
429 u32 mi, *map_indexp, map_index, i;
430 mapping_t *m, *old_map;
433 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->eid);
434 old_map = mi != ~0 ? pool_elt_at_index (lcm->mapping_pool, mi) : 0;
437 /* TODO check if overwriting and take appropriate actions */
438 if (mi != GID_LOOKUP_MISS && !gid_address_cmp (&old_map->eid, &a->eid))
440 clib_warning ("eid %U found in the eid-table", format_gid_address,
442 return VNET_API_ERROR_VALUE_EXIST;
445 pool_get (lcm->mapping_pool, m);
446 gid_address_copy (&m->eid, &a->eid);
447 m->locator_set_index = a->locator_set_index;
449 m->action = a->action;
451 m->is_static = a->is_static;
453 map_index = m - lcm->mapping_pool;
454 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, map_index,
457 if (pool_is_free_index (lcm->locator_set_pool, a->locator_set_index))
459 clib_warning ("Locator set with index %d doesn't exist",
460 a->locator_set_index);
461 return VNET_API_ERROR_INVALID_VALUE;
464 /* add eid to list of eids supported by locator-set */
465 vec_validate (lcm->locator_set_to_eids, a->locator_set_index);
466 eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids,
467 a->locator_set_index);
468 vec_add1 (eid_indexes[0], map_index);
473 vec_add1 (lcm->local_mappings_indexes, map_index);
475 map_index_result[0] = map_index;
479 if (mi == GID_LOOKUP_MISS)
481 clib_warning ("eid %U not found in the eid-table",
482 format_gid_address, &a->eid);
483 return VNET_API_ERROR_INVALID_VALUE;
486 /* clear locator-set to eids binding */
487 eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids,
488 a->locator_set_index);
489 for (i = 0; i < vec_len (eid_indexes[0]); i++)
491 map_indexp = vec_elt_at_index (eid_indexes[0], i);
492 if (map_indexp[0] == mi)
495 vec_del1 (eid_indexes[0], i);
497 /* remove local mark if needed */
498 m = pool_elt_at_index (lcm->mapping_pool, mi);
502 for (k = 0; k < vec_len (lcm->local_mappings_indexes); k++)
504 lm_indexp = vec_elt_at_index (lcm->local_mappings_indexes, k);
505 if (lm_indexp[0] == mi)
508 vec_del1 (lcm->local_mappings_indexes, k);
511 /* remove mapping from dictionary */
512 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, 0, 0);
513 gid_address_free (&m->eid);
514 pool_put_index (lcm->mapping_pool, mi);
521 * Add/update/delete mapping to/in/from map-cache.
524 vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a,
525 u32 * map_index_result)
531 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
533 if (vnet_lisp_enable_disable_status () == 0)
535 clib_warning ("LISP is disabled!");
536 return VNET_API_ERROR_LISP_DISABLED;
539 vni = gid_address_vni (&a->eid);
540 type = gid_address_type (&a->eid);
541 if (GID_ADDR_IP_PREFIX == type)
542 dp_table = hash_get (lcm->table_id_by_vni, vni);
543 else if (GID_ADDR_MAC == type)
544 dp_table = hash_get (lcm->bd_id_by_vni, vni);
548 clib_warning ("vni %d not associated to a %s!", vni,
549 GID_ADDR_IP_PREFIX == type ? "vrf" : "bd");
550 return VNET_API_ERROR_INVALID_VALUE;
553 /* store/remove mapping from map-cache */
554 return vnet_lisp_map_cache_add_del (a, map_index_result);
557 static clib_error_t *
558 lisp_add_del_local_eid_command_fn (vlib_main_t * vm, unformat_input_t * input,
559 vlib_cli_command_t * cmd)
561 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
562 unformat_input_t _line_input, *line_input = &_line_input;
565 gid_address_t *eids = 0;
566 clib_error_t *error = 0;
567 u8 *locator_set_name = 0;
568 u32 locator_set_index = 0, map_index = 0;
570 vnet_lisp_add_del_mapping_args_t _a, *a = &_a;
574 memset (&eid, 0, sizeof (eid));
575 memset (a, 0, sizeof (*a));
577 /* Get a line of input. */
578 if (!unformat_user (input, unformat_line_input, line_input))
581 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
583 if (unformat (line_input, "add"))
585 else if (unformat (line_input, "del"))
587 else if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
589 else if (unformat (line_input, "vni %d", &vni))
590 gid_address_vni (&eid) = vni;
591 else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name))
593 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
596 error = clib_error_return (0, "locator-set %s doesn't exist",
600 locator_set_index = p[0];
604 error = unformat_parse_error (line_input);
608 /* XXX treat batch configuration */
610 if (GID_ADDR_SRC_DST == gid_address_type (&eid))
613 clib_error_return (0, "src/dst is not supported for local EIDs!");
617 gid_address_copy (&a->eid, &eid);
619 a->locator_set_index = locator_set_index;
622 rv = vnet_lisp_add_del_local_mapping (a, &map_index);
625 error = clib_error_return (0, "failed to %s local mapping!",
626 is_add ? "add" : "delete");
630 if (locator_set_name)
631 vec_free (locator_set_name);
632 gid_address_free (&a->eid);
637 VLIB_CLI_COMMAND (lisp_add_del_local_eid_command) = {
638 .path = "lisp eid-table",
639 .short_help = "lisp eid-table add/del [vni <vni>] eid <eid> "
640 "locator-set <locator-set>",
641 .function = lisp_add_del_local_eid_command_fn,
646 vnet_lisp_eid_table_map (u32 vni, u32 dp_id, u8 is_l2, u8 is_add)
648 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
649 uword *dp_idp, *vnip, **dp_table_by_vni, **vni_by_dp_table;
651 if (vnet_lisp_enable_disable_status () == 0)
653 clib_warning ("LISP is disabled!");
657 dp_table_by_vni = is_l2 ? &lcm->bd_id_by_vni : &lcm->table_id_by_vni;
658 vni_by_dp_table = is_l2 ? &lcm->vni_by_bd_id : &lcm->vni_by_table_id;
660 if (!is_l2 && (vni == 0 || dp_id == 0))
662 clib_warning ("can't add/del default vni-vrf mapping!");
666 dp_idp = hash_get (dp_table_by_vni[0], vni);
667 vnip = hash_get (vni_by_dp_table[0], dp_id);
673 clib_warning ("vni %d or vrf %d already used in vrf/vni "
674 "mapping!", vni, dp_id);
677 hash_set (dp_table_by_vni[0], vni, dp_id);
678 hash_set (vni_by_dp_table[0], dp_id, vni);
680 /* create dp iface */
681 dp_add_del_iface (lcm, vni, is_l2, 1);
685 if (!dp_idp || !vnip)
687 clib_warning ("vni %d or vrf %d not used in any vrf/vni! "
688 "mapping!", vni, dp_id);
691 hash_unset (dp_table_by_vni[0], vni);
692 hash_unset (vni_by_dp_table[0], dp_id);
694 /* remove dp iface */
695 dp_add_del_iface (lcm, vni, is_l2, 0);
701 static clib_error_t *
702 lisp_eid_table_map_command_fn (vlib_main_t * vm,
703 unformat_input_t * input,
704 vlib_cli_command_t * cmd)
706 u8 is_add = 1, is_l2 = 0;
707 u32 vni = 0, dp_id = 0;
708 unformat_input_t _line_input, *line_input = &_line_input;
710 /* Get a line of input. */
711 if (!unformat_user (input, unformat_line_input, line_input))
714 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
716 if (unformat (line_input, "del"))
718 else if (unformat (line_input, "vni %d", &vni))
720 else if (unformat (line_input, "vrf %d", &dp_id))
722 else if (unformat (line_input, "bd %d", &dp_id))
726 return unformat_parse_error (line_input);
729 vnet_lisp_eid_table_map (vni, dp_id, is_l2, is_add);
734 VLIB_CLI_COMMAND (lisp_eid_table_map_command) = {
735 .path = "lisp eid-table map",
736 .short_help = "lisp eid-table map [del] vni <vni> vrf <vrf> | bd <bdi>",
737 .function = lisp_eid_table_map_command_fn,
741 /* return 0 if the two locator sets are identical 1 otherwise */
743 compare_locators (lisp_cp_main_t * lcm, u32 * old_ls_indexes,
744 locator_t * new_locators)
747 locator_t *old_loc, *new_loc;
749 if (vec_len (old_ls_indexes) != vec_len (new_locators))
752 for (i = 0; i < vec_len (new_locators); i++)
754 old_li = vec_elt (old_ls_indexes, i);
755 old_loc = pool_elt_at_index (lcm->locator_pool, old_li);
757 new_loc = vec_elt_at_index (new_locators, i);
759 if (locator_cmp (old_loc, new_loc))
766 * Adds/removes/updates mapping. Does not program forwarding.
768 * @param eid end-host identifier
769 * @param rlocs vector of remote locators
770 * @param action action for negative map-reply
771 * @param is_add add mapping if non-zero, delete otherwise
772 * @param res_map_index the map-index that was created/updated/removed. It is
773 * set to ~0 if no action is taken.
774 * @param is_static used for distinguishing between statically learned
775 remote mappings and mappings obtained from MR
776 * @return return code
779 vnet_lisp_add_del_mapping (gid_address_t * eid, locator_t * rlocs, u8 action,
780 u8 authoritative, u32 ttl, u8 is_add, u8 is_static,
783 vnet_lisp_add_del_mapping_args_t _m_args, *m_args = &_m_args;
784 vnet_lisp_add_del_locator_set_args_t _ls_args, *ls_args = &_ls_args;
785 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
786 u32 mi, ls_index = 0, dst_map_index;
789 if (vnet_lisp_enable_disable_status () == 0)
791 clib_warning ("LISP is disabled!");
792 return VNET_API_ERROR_LISP_DISABLED;
796 res_map_index[0] = ~0;
798 memset (m_args, 0, sizeof (m_args[0]));
799 memset (ls_args, 0, sizeof (ls_args[0]));
801 ls_args->locators = rlocs;
803 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, eid);
804 old_map = ((u32) ~ 0 != mi) ? pool_elt_at_index (lcm->mapping_pool, mi) : 0;
808 /* overwrite: if mapping already exists, decide if locators should be
809 * updated and be done */
810 if (old_map && gid_address_cmp (&old_map->eid, eid) == 0)
812 if (!is_static && (old_map->is_static || old_map->local))
814 /* do not overwrite local or static remote mappings */
815 clib_warning ("mapping %U rejected due to collision with local "
816 "or static remote mapping!", format_gid_address,
821 locator_set_t *old_ls;
823 /* update mapping attributes */
824 old_map->action = action;
825 old_map->authoritative = authoritative;
828 old_ls = pool_elt_at_index (lcm->locator_set_pool,
829 old_map->locator_set_index);
830 if (compare_locators (lcm, old_ls->locator_indices,
833 /* set locator-set index to overwrite */
835 ls_args->index = old_map->locator_set_index;
836 vnet_lisp_add_del_locator_set (ls_args, 0);
838 res_map_index[0] = mi;
847 vnet_lisp_add_del_locator_set (ls_args, &ls_index);
850 gid_address_copy (&m_args->eid, eid);
852 m_args->action = action;
853 m_args->locator_set_index = ls_index;
854 m_args->is_static = is_static;
855 vnet_lisp_map_cache_add_del (m_args, &dst_map_index);
858 res_map_index[0] = dst_map_index;
863 if (old_map == 0 || gid_address_cmp (&old_map->eid, eid) != 0)
865 clib_warning ("cannot delete mapping for eid %U",
866 format_gid_address, eid);
871 gid_address_copy (&m_args->eid, eid);
872 m_args->locator_set_index = old_map->locator_set_index;
874 /* delete mapping associated from map-cache */
875 vnet_lisp_map_cache_add_del (m_args, 0);
878 ls_args->index = old_map->locator_set_index;
879 /* delete locator set */
880 vnet_lisp_add_del_locator_set (ls_args, 0);
882 /* return old mapping index */
884 res_map_index[0] = mi;
892 vnet_lisp_clear_all_remote_adjacencies (void)
895 u32 mi, *map_indices = 0, *map_indexp;
896 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
897 vnet_lisp_add_del_mapping_args_t _dm_args, *dm_args = &_dm_args;
898 vnet_lisp_add_del_locator_set_args_t _ls, *ls = &_ls;
901 pool_foreach_index (mi, lcm->mapping_pool,
903 vec_add1 (map_indices, mi);
907 vec_foreach (map_indexp, map_indices)
909 mapping_t *map = pool_elt_at_index (lcm->mapping_pool, map_indexp[0]);
912 dp_del_fwd_entry (lcm, 0, map_indexp[0]);
915 gid_address_copy (&dm_args->eid, &map->eid);
916 dm_args->locator_set_index = map->locator_set_index;
918 /* delete mapping associated to fwd entry */
919 vnet_lisp_map_cache_add_del (dm_args, 0);
923 ls->index = map->locator_set_index;
924 /* delete locator set */
925 rv = vnet_lisp_add_del_locator_set (ls, 0);
933 vec_free (map_indices);
938 * Adds adjacency or removes forwarding entry associated to remote mapping.
939 * Note that adjacencies are not stored, they only result in forwarding entries
943 lisp_add_del_adjacency (lisp_cp_main_t * lcm, gid_address_t * local_eid,
944 gid_address_t * remote_eid, u8 is_add)
946 u32 local_mi, remote_mi = ~0;
948 if (vnet_lisp_enable_disable_status () == 0)
950 clib_warning ("LISP is disabled!");
951 return VNET_API_ERROR_LISP_DISABLED;
954 remote_mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, remote_eid);
955 if (GID_LOOKUP_MISS == remote_mi)
957 clib_warning ("Remote eid %U not found. Cannot add adjacency!",
958 format_gid_address, remote_eid);
965 /* TODO 1) check if src/dst 2) once we have src/dst working, use it in
968 /* check if source eid has an associated mapping. If pitr mode is on,
969 * just use the pitr's mapping */
970 local_mi = lcm->lisp_pitr ? lcm->pitr_map_index :
971 gid_dictionary_lookup (&lcm->mapping_index_by_gid, local_eid);
974 if (GID_LOOKUP_MISS == local_mi)
976 clib_warning ("Local eid %U not found. Cannot add adjacency!",
977 format_gid_address, local_eid);
982 /* update forwarding */
983 dp_add_fwd_entry (lcm, local_mi, remote_mi);
986 dp_del_fwd_entry (lcm, 0, remote_mi);
992 vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a)
994 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
995 return lisp_add_del_adjacency (lcm, &a->seid, &a->deid, a->is_add);
999 * Handler for add/del remote mapping CLI.
1001 * @param vm vlib context
1002 * @param input input from user
1004 * @return pointer to clib error structure
1006 static clib_error_t *
1007 lisp_add_del_remote_mapping_command_fn (vlib_main_t * vm,
1008 unformat_input_t * input,
1009 vlib_cli_command_t * cmd)
1011 clib_error_t *error = 0;
1012 unformat_input_t _line_input, *line_input = &_line_input;
1013 u8 is_add = 1, del_all = 0;
1014 locator_t rloc, *rlocs = 0, *curr_rloc = 0;
1017 u32 vni, action = ~0, p, w;
1020 /* Get a line of input. */
1021 if (!unformat_user (input, unformat_line_input, line_input))
1024 memset (&eid, 0, sizeof (eid));
1025 memset (&rloc, 0, sizeof (rloc));
1027 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1029 if (unformat (line_input, "del-all"))
1031 else if (unformat (line_input, "del"))
1033 else if (unformat (line_input, "add"))
1035 else if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
1037 else if (unformat (line_input, "vni %u", &vni))
1039 gid_address_vni (&eid) = vni;
1041 else if (unformat (line_input, "p %d w %d", &p, &w))
1046 ("No RLOC configured for setting priority/weight!");
1049 curr_rloc->priority = p;
1050 curr_rloc->weight = w;
1052 else if (unformat (line_input, "rloc %U", unformat_ip_address,
1053 &gid_address_ip (&rloc.address)))
1055 /* since rloc is stored in ip prefix we need to set prefix length */
1056 ip_prefix_t *pref = &gid_address_ippref (&rloc.address);
1058 u8 version = gid_address_ip_version (&rloc.address);
1059 ip_prefix_len (pref) = ip_address_max_len (version);
1061 vec_add1 (rlocs, rloc);
1062 curr_rloc = &rlocs[vec_len (rlocs) - 1];
1064 else if (unformat (line_input, "action %U",
1065 unformat_negative_mapping_action, &action))
1069 clib_warning ("parse error");
1076 clib_warning ("missing eid!");
1082 if (is_add && (~0 == action) && 0 == vec_len (rlocs))
1084 clib_warning ("no action set for negative map-reply!");
1090 vnet_lisp_clear_all_remote_adjacencies ();
1094 /* TODO build src/dst with seid */
1096 /* if it's a delete, clean forwarding */
1099 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1100 rv = lisp_add_del_adjacency (lcm, 0, &eid, /* is_add */ 0);
1107 /* add as static remote mapping, i.e., not authoritative and infinite
1109 rv = vnet_lisp_add_del_mapping (&eid, rlocs, action, 0, ~0, is_add,
1110 1 /* is_static */ , 0);
1113 clib_warning ("failed to %s remote mapping!", is_add ? "add" : "delete");
1117 unformat_free (line_input);
1121 VLIB_CLI_COMMAND (lisp_add_del_remote_mapping_command) =
1123 .path = "lisp remote-mapping",.short_help =
1124 "lisp remote-mapping add|del [del-all] vni <vni> "
1125 "eid <est-eid> [action <no-action|natively-forward|"
1126 "send-map-request|drop>] rloc <dst-locator> p <prio> w <weight> "
1127 "[rloc <dst-locator> ... ]",.function =
1128 lisp_add_del_remote_mapping_command_fn,};
1131 * Handler for add/del adjacency CLI.
1133 static clib_error_t *
1134 lisp_add_del_adjacency_command_fn (vlib_main_t * vm, unformat_input_t * input,
1135 vlib_cli_command_t * cmd)
1137 clib_error_t *error = 0;
1138 unformat_input_t _line_input, *line_input = &_line_input;
1139 vnet_lisp_add_del_adjacency_args_t _a, *a = &_a;
1141 locator_t rloc, *rlocs = 0;
1142 ip_prefix_t *deid_ippref, *seid_ippref;
1143 gid_address_t seid, deid;
1144 u8 *dmac = gid_address_mac (&deid);
1145 u8 *smac = gid_address_mac (&seid);
1146 u8 deid_set = 0, seid_set = 0;
1148 u32 vni, action = ~0;
1151 /* Get a line of input. */
1152 if (!unformat_user (input, unformat_line_input, line_input))
1155 memset (&deid, 0, sizeof (deid));
1156 memset (&seid, 0, sizeof (seid));
1157 memset (&rloc, 0, sizeof (rloc));
1159 seid_ippref = &gid_address_ippref (&seid);
1160 deid_ippref = &gid_address_ippref (&deid);
1162 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1164 if (unformat (line_input, "del"))
1166 else if (unformat (line_input, "add"))
1168 else if (unformat (line_input, "deid %U",
1169 unformat_ip_prefix, deid_ippref))
1171 gid_address_type (&deid) = GID_ADDR_IP_PREFIX;
1174 else if (unformat (line_input, "deid %U", unformat_mac_address, dmac))
1176 gid_address_type (&deid) = GID_ADDR_MAC;
1179 else if (unformat (line_input, "vni %u", &vni))
1181 gid_address_vni (&seid) = vni;
1182 gid_address_vni (&deid) = vni;
1184 else if (unformat (line_input, "seid %U",
1185 unformat_ip_prefix, seid_ippref))
1187 gid_address_type (&seid) = GID_ADDR_IP_PREFIX;
1190 else if (unformat (line_input, "seid %U", unformat_mac_address, smac))
1192 gid_address_type (&seid) = GID_ADDR_MAC;
1197 clib_warning ("parse error");
1204 clib_warning ("missing deid!");
1208 if (GID_ADDR_IP_PREFIX == gid_address_type (&deid))
1210 /* if seid not set, make sure the ip version is the same as that
1211 * of the deid. This ensures the seid to be configured will be
1212 * either 0/0 or ::/0 */
1214 ip_prefix_version (seid_ippref) = ip_prefix_version (deid_ippref);
1217 (ip_prefix_version (deid_ippref)
1218 != ip_prefix_version (seid_ippref)))
1220 clib_warning ("source and destination EIDs are not"
1221 " in the same IP family!");
1226 if (is_add && (~0 == action) && 0 == vec_len (rlocs))
1228 clib_warning ("no action set for negative map-reply!");
1232 memset (a, 0, sizeof (a[0]));
1233 gid_address_copy (&a->seid, &deid);
1234 gid_address_copy (&a->deid, &seid);
1237 rv = vnet_lisp_add_del_adjacency (a);
1240 clib_warning ("failed to %s adjacency!", is_add ? "add" : "delete");
1243 unformat_free (line_input);
1250 VLIB_CLI_COMMAND (lisp_add_del_adjacency_command) = {
1251 .path = "lisp adjacency",
1252 .short_help = "lisp adjacency add|del vni <vni>"
1253 "deid <dest-eid> seid <src-eid> [action <no-action|natively-forward|"
1254 "send-map-request|drop>] rloc <dst-locator> [rloc <dst-locator> ... ]",
1255 .function = lisp_add_del_adjacency_command_fn,
1259 static clib_error_t *
1260 lisp_show_map_resolvers_command_fn (vlib_main_t * vm,
1261 unformat_input_t * input,
1262 vlib_cli_command_t * cmd)
1265 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1267 vec_foreach (mr, lcm->map_resolvers)
1269 vlib_cli_output (vm, "%U", format_ip_address, &mr->address);
1275 VLIB_CLI_COMMAND (lisp_show_map_resolvers_command) = {
1276 .path = "show lisp map-resolvers",
1277 .short_help = "show lisp map-resolvers",
1278 .function = lisp_show_map_resolvers_command_fn,
1283 vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add)
1285 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1286 u32 locator_set_index = ~0;
1290 if (vnet_lisp_enable_disable_status () == 0)
1292 clib_warning ("LISP is disabled!");
1293 return VNET_API_ERROR_LISP_DISABLED;
1296 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
1299 clib_warning ("locator-set %v doesn't exist", locator_set_name);
1302 locator_set_index = p[0];
1306 pool_get (lcm->mapping_pool, m);
1307 m->locator_set_index = locator_set_index;
1309 lcm->pitr_map_index = m - lcm->mapping_pool;
1311 /* enable pitr mode */
1316 /* remove pitr mapping */
1317 pool_put_index (lcm->mapping_pool, lcm->pitr_map_index);
1319 /* disable pitr mode */
1325 static clib_error_t *
1326 lisp_pitr_set_locator_set_command_fn (vlib_main_t * vm,
1327 unformat_input_t * input,
1328 vlib_cli_command_t * cmd)
1330 u8 locator_name_set = 0;
1331 u8 *locator_set_name = 0;
1333 unformat_input_t _line_input, *line_input = &_line_input;
1334 clib_error_t *error = 0;
1337 /* Get a line of input. */
1338 if (!unformat_user (input, unformat_line_input, line_input))
1341 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1343 if (unformat (line_input, "ls %_%v%_", &locator_set_name))
1344 locator_name_set = 1;
1345 else if (unformat (line_input, "disable"))
1348 return clib_error_return (0, "parse error");
1351 if (!locator_name_set)
1353 clib_warning ("No locator set specified!");
1356 rv = vnet_lisp_pitr_set_locator_set (locator_set_name, is_add);
1359 error = clib_error_return (0, "failed to %s pitr!",
1360 is_add ? "add" : "delete");
1364 if (locator_set_name)
1365 vec_free (locator_set_name);
1370 VLIB_CLI_COMMAND (lisp_pitr_set_locator_set_command) = {
1371 .path = "lisp pitr",
1372 .short_help = "lisp pitr [disable] ls <locator-set-name>",
1373 .function = lisp_pitr_set_locator_set_command_fn,
1377 static clib_error_t *
1378 lisp_show_pitr_command_fn (vlib_main_t * vm,
1379 unformat_input_t * input, vlib_cli_command_t * cmd)
1381 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1386 vlib_cli_output (vm, "%=20s%=16s",
1387 "pitr", lcm->lisp_pitr ? "locator-set" : "");
1389 if (!lcm->lisp_pitr)
1391 vlib_cli_output (vm, "%=20s", "disable");
1395 if (~0 == lcm->pitr_map_index)
1397 tmp_str = format (0, "N/A");
1401 m = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
1402 if (~0 != m->locator_set_index)
1405 pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index);
1406 tmp_str = format (0, "%s", ls->name);
1410 tmp_str = format (0, "N/A");
1413 vec_add1 (tmp_str, 0);
1415 vlib_cli_output (vm, "%=20s%=16s", "enable", tmp_str);
1423 VLIB_CLI_COMMAND (lisp_show_pitr_command) = {
1424 .path = "show lisp pitr",
1425 .short_help = "Show pitr",
1426 .function = lisp_show_pitr_command_fn,
1431 format_eid_entry (u8 * s, va_list * args)
1433 vnet_main_t *vnm = va_arg (*args, vnet_main_t *);
1434 lisp_cp_main_t *lcm = va_arg (*args, lisp_cp_main_t *);
1435 mapping_t *mapit = va_arg (*args, mapping_t *);
1436 locator_set_t *ls = va_arg (*args, locator_set_t *);
1437 gid_address_t *gid = &mapit->eid;
1438 u32 ttl = mapit->ttl;
1439 u8 aut = mapit->authoritative;
1444 u8 *type = ls->local ? format (0, "local(%s)", ls->name)
1445 : format (0, "remote");
1447 if (vec_len (ls->locator_indices) == 0)
1449 s = format (s, "%-35U%-30s%-20u%-u", format_gid_address, gid,
1454 vec_foreach (loc_index, ls->locator_indices)
1456 locator_t *l = pool_elt_at_index (lcm->locator_pool, loc_index[0]);
1458 loc = format (0, "%U", format_vnet_sw_if_index_name, vnm,
1461 loc = format (0, "%U", format_ip_address,
1462 &gid_address_ip (&l->address));
1466 s = format (s, "%-35U%-20s%-30v%-20u%-u\n", format_gid_address,
1467 gid, type, loc, ttl, aut);
1471 s = format (s, "%55s%v\n", "", loc);
1477 static clib_error_t *
1478 lisp_show_eid_table_command_fn (vlib_main_t * vm,
1479 unformat_input_t * input,
1480 vlib_cli_command_t * cmd)
1482 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1484 unformat_input_t _line_input, *line_input = &_line_input;
1490 memset (&eid, 0, sizeof (eid));
1492 /* Get a line of input. */
1493 if (!unformat_user (input, unformat_line_input, line_input))
1496 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1498 if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
1500 else if (unformat (line_input, "local"))
1502 else if (unformat (line_input, "remote"))
1505 return clib_error_return (0, "parse error: '%U'",
1506 format_unformat_error, line_input);
1509 vlib_cli_output (vm, "%-35s%-20s%-30s%-20s%-s",
1510 "EID", "type", "locators", "ttl", "autoritative");
1515 pool_foreach (mapit, lcm->mapping_pool,
1517 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1518 mapit->locator_set_index);
1519 if (filter && !((1 == filter && ls->local) ||
1520 (2 == filter && !ls->local)))
1524 vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
1531 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &eid);
1532 if ((u32) ~ 0 == mi)
1535 mapit = pool_elt_at_index (lcm->mapping_pool, mi);
1536 locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool,
1537 mapit->locator_set_index);
1539 if (filter && !((1 == filter && ls->local) ||
1540 (2 == filter && !ls->local)))
1545 vlib_cli_output (vm, "%U,", format_eid_entry, lcm->vnet_main,
1553 VLIB_CLI_COMMAND (lisp_cp_show_eid_table_command) = {
1554 .path = "show lisp eid-table",
1555 .short_help = "Shows EID table",
1556 .function = lisp_show_eid_table_command_fn,
1560 /* cleans locator to locator-set data and removes locators not part of
1561 * any locator-set */
1563 clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi)
1565 u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes, *to_be_deleted = 0;
1566 locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool, lsi);
1567 for (i = 0; i < vec_len (ls->locator_indices); i++)
1569 loc_indexp = vec_elt_at_index (ls->locator_indices, i);
1570 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets,
1572 for (j = 0; j < vec_len (ls_indexes[0]); j++)
1574 ls_indexp = vec_elt_at_index (ls_indexes[0], j);
1575 if (ls_indexp[0] == lsi)
1579 /* delete index for removed locator-set */
1580 vec_del1 (ls_indexes[0], j);
1582 /* delete locator if it's part of no locator-set */
1583 if (vec_len (ls_indexes[0]) == 0)
1585 pool_put_index (lcm->locator_pool, loc_indexp[0]);
1586 vec_add1 (to_be_deleted, i);
1592 for (i = 0; i < vec_len (to_be_deleted); i++)
1594 loc_indexp = vec_elt_at_index (to_be_deleted, i);
1595 vec_del1 (ls->locator_indices, loc_indexp[0]);
1597 vec_free (to_be_deleted);
1601 static inline uword *
1602 get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p)
1604 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1609 /* find locator-set */
1612 p = hash_get_mem (lcm->locator_set_index_by_name, a->name);
1623 is_locator_in_locator_set (lisp_cp_main_t * lcm, locator_set_t * ls,
1629 ASSERT (ls != NULL);
1630 ASSERT (loc != NULL);
1632 vec_foreach (locit, ls->locator_indices)
1634 itloc = pool_elt_at_index (lcm->locator_pool, locit[0]);
1635 if ((ls->local && itloc->sw_if_index == loc->sw_if_index) ||
1636 (!ls->local && !gid_address_cmp (&itloc->address, &loc->address)))
1638 clib_warning ("Duplicate locator");
1639 return VNET_API_ERROR_VALUE_EXIST;
1647 remove_locator_from_locator_set (locator_set_t * ls, u32 * locit,
1648 u32 ls_index, u32 loc_id)
1650 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1651 u32 **ls_indexes = NULL;
1653 ASSERT (ls != NULL);
1654 ASSERT (locit != NULL);
1656 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets, locit[0]);
1657 pool_put_index (lcm->locator_pool, locit[0]);
1658 vec_del1 (ls->locator_indices, loc_id);
1659 vec_del1 (ls_indexes[0], ls_index);
1663 vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a,
1664 locator_set_t * ls, u32 * ls_result)
1666 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1667 locator_t *loc = NULL, *itloc = NULL;
1668 uword _p = (u32) ~ 0, *p = &_p;
1669 u32 loc_index = ~0, ls_index = ~0, *locit = NULL, **ls_indexes = NULL;
1675 if (vnet_lisp_enable_disable_status () == 0)
1677 clib_warning ("LISP is disabled!");
1678 return VNET_API_ERROR_LISP_DISABLED;
1681 p = get_locator_set_index (a, p);
1684 clib_warning ("locator-set %v doesn't exist", a->name);
1685 return VNET_API_ERROR_INVALID_ARGUMENT;
1690 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1693 clib_warning ("locator-set %d to be overwritten doesn't exist!",
1695 return VNET_API_ERROR_INVALID_ARGUMENT;
1702 ls_result[0] = p[0];
1704 /* allocate locators */
1705 vec_foreach (itloc, a->locators)
1707 ret = is_locator_in_locator_set (lcm, ls, itloc);
1713 pool_get (lcm->locator_pool, loc);
1715 loc_index = loc - lcm->locator_pool;
1717 vec_add1 (ls->locator_indices, loc_index);
1719 vec_validate (lcm->locator_to_locator_sets, loc_index);
1720 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets,
1722 vec_add1 (ls_indexes[0], p[0]);
1729 itloc = a->locators;
1731 vec_foreach (locit, ls->locator_indices)
1733 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
1735 if (loc->local && loc->sw_if_index == itloc->sw_if_index)
1737 remove_locator_from_locator_set (ls, locit, ls_index, loc_id);
1739 if (0 == loc->local &&
1740 !gid_address_cmp (&loc->address, &itloc->address))
1742 remove_locator_from_locator_set (ls, locit, ls_index, loc_id);
1753 vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
1756 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1758 uword _p = (u32) ~ 0, *p = &_p;
1763 if (vnet_lisp_enable_disable_status () == 0)
1765 clib_warning ("LISP is disabled!");
1766 return VNET_API_ERROR_LISP_DISABLED;
1771 p = get_locator_set_index (a, p);
1774 if (p && p[0] != (u32) ~ 0)
1776 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1779 clib_warning ("locator-set %d to be overwritten doesn't exist!",
1784 /* clean locator to locator-set vectors and remove locators if
1785 * they're not part of another locator-set */
1786 clean_locator_to_locator_set (lcm, p[0]);
1788 /* remove locator indices from locator set */
1789 vec_free (ls->locator_indices);
1794 ls_result[0] = p[0];
1796 /* new locator-set */
1799 pool_get (lcm->locator_set_pool, ls);
1800 memset (ls, 0, sizeof (*ls));
1801 ls_index = ls - lcm->locator_set_pool;
1805 ls->name = vec_dup (a->name);
1807 if (!lcm->locator_set_index_by_name)
1808 lcm->locator_set_index_by_name = hash_create_vec (
1816 hash_set_mem (lcm->locator_set_index_by_name, ls->name,
1819 /* mark as local locator-set */
1820 vec_add1 (lcm->local_locator_set_indexes, ls_index);
1822 ls->local = a->local;
1824 ls_result[0] = ls_index;
1827 ret = vnet_lisp_add_del_locator (a, ls, NULL);
1835 p = get_locator_set_index (a, p);
1838 clib_warning ("locator-set %v doesn't exists", a->name);
1842 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1845 clib_warning ("locator-set with index %d doesn't exists", p[0]);
1849 if (lcm->mreq_itr_rlocs == p[0])
1851 clib_warning ("Can't delete the locator-set used to constrain "
1852 "the itr-rlocs in map-requests!");
1856 if (vec_len (lcm->locator_set_to_eids) != 0)
1858 eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids, p[0]);
1859 if (vec_len (eid_indexes[0]) != 0)
1862 ("Can't delete a locator that supports a mapping!");
1867 /* clean locator to locator-sets data */
1868 clean_locator_to_locator_set (lcm, p[0]);
1874 vec_foreach_index (it, lcm->local_locator_set_indexes)
1876 lsi = vec_elt (lcm->local_locator_set_indexes, it);
1879 vec_del1 (lcm->local_locator_set_indexes, it);
1883 hash_unset_mem (lcm->locator_set_index_by_name, ls->name);
1885 vec_free (ls->name);
1886 vec_free (ls->locator_indices);
1887 pool_put (lcm->locator_set_pool, ls);
1893 vnet_lisp_enable_disable (u8 is_enable)
1896 clib_error_t *error = 0;
1897 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1898 vnet_lisp_gpe_enable_disable_args_t _a, *a = &_a;
1900 a->is_en = is_enable;
1901 error = vnet_lisp_gpe_enable_disable (a);
1904 return clib_error_return (0, "failed to %s data-plane!",
1905 a->is_en ? "enable" : "disable");
1910 /* enable all l2 and l3 ifaces */
1913 hash_foreach(vni, dp_table, lcm->table_id_by_vni, ({
1914 dp_add_del_iface(lcm, vni, 0, 1);
1916 hash_foreach(vni, dp_table, lcm->bd_id_by_vni, ({
1917 dp_add_del_iface(lcm, vni, /* is_l2 */ 1, 1);
1923 /* clear interface table */
1924 hash_free (lcm->dp_intf_by_vni);
1925 hash_free (lcm->fwd_entry_by_mapping_index);
1926 pool_free (lcm->fwd_entry_pool);
1929 /* update global flag */
1930 lcm->is_enabled = is_enable;
1935 static clib_error_t *
1936 lisp_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input,
1937 vlib_cli_command_t * cmd)
1939 unformat_input_t _line_input, *line_input = &_line_input;
1943 /* Get a line of input. */
1944 if (!unformat_user (input, unformat_line_input, line_input))
1947 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1949 if (unformat (line_input, "enable"))
1954 else if (unformat (line_input, "disable"))
1958 return clib_error_return (0, "parse error: '%U'",
1959 format_unformat_error, line_input);
1964 return clib_error_return (0, "state not set");
1966 return vnet_lisp_enable_disable (is_enabled);
1970 VLIB_CLI_COMMAND (lisp_cp_enable_disable_command) = {
1972 .short_help = "lisp [enable|disable]",
1973 .function = lisp_enable_disable_command_fn,
1978 vnet_lisp_enable_disable_status (void)
1980 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1981 return lcm->is_enabled;
1985 format_lisp_status (u8 * s, va_list * args)
1987 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1988 return format (s, "%s", lcm->is_enabled ? "enabled" : "disabled");
1991 static clib_error_t *
1992 lisp_show_status_command_fn (vlib_main_t * vm, unformat_input_t * input,
1993 vlib_cli_command_t * cmd)
1996 msg = format (msg, "feature: %U\ngpe: %U\n",
1997 format_lisp_status, format_vnet_lisp_gpe_status);
1998 vlib_cli_output (vm, "%v", msg);
2004 VLIB_CLI_COMMAND (lisp_show_status_command) = {
2005 .path = "show lisp status",
2006 .short_help = "show lisp status",
2007 .function = lisp_show_status_command_fn,
2011 static clib_error_t *
2012 lisp_show_eid_table_map_command_fn (vlib_main_t * vm,
2013 unformat_input_t * input,
2014 vlib_cli_command_t * cmd)
2017 unformat_input_t _line_input, *line_input = &_line_input;
2018 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2019 uword *vni_table = 0;
2022 /* Get a line of input. */
2023 if (!unformat_user (input, unformat_line_input, line_input))
2026 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2028 if (unformat (line_input, "l2"))
2030 vni_table = lcm->bd_id_by_vni;
2033 else if (unformat (line_input, "l3"))
2035 vni_table = lcm->table_id_by_vni;
2039 return clib_error_return (0, "parse error: '%U'",
2040 format_unformat_error, line_input);
2045 vlib_cli_output (vm, "Error: expected l2|l3 param!\n");
2049 vlib_cli_output (vm, "%=10s%=10s", "VNI", is_l2 ? "BD" : "VRF");
2052 hash_foreach_pair (p, vni_table,
2054 vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
2062 VLIB_CLI_COMMAND (lisp_show_eid_table_map_command) = {
2063 .path = "show lisp eid-table map",
2064 .short_help = "show lisp eid-table l2|l3",
2065 .function = lisp_show_eid_table_map_command_fn,
2069 static clib_error_t *
2070 lisp_add_del_locator_set_command_fn (vlib_main_t * vm,
2071 unformat_input_t * input,
2072 vlib_cli_command_t * cmd)
2074 lisp_gpe_main_t *lgm = &lisp_gpe_main;
2075 vnet_main_t *vnm = lgm->vnet_main;
2076 unformat_input_t _line_input, *line_input = &_line_input;
2078 clib_error_t *error = 0;
2079 u8 *locator_set_name = 0;
2080 locator_t locator, *locators = 0;
2081 vnet_lisp_add_del_locator_set_args_t _a, *a = &_a;
2085 memset (&locator, 0, sizeof (locator));
2086 memset (a, 0, sizeof (a[0]));
2088 /* Get a line of input. */
2089 if (!unformat_user (input, unformat_line_input, line_input))
2092 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2094 if (unformat (line_input, "add %_%v%_", &locator_set_name))
2096 else if (unformat (line_input, "del %_%v%_", &locator_set_name))
2098 else if (unformat (line_input, "iface %U p %d w %d",
2099 unformat_vnet_sw_interface, vnm,
2100 &locator.sw_if_index, &locator.priority,
2104 vec_add1 (locators, locator);
2108 error = unformat_parse_error (line_input);
2113 a->name = locator_set_name;
2114 a->locators = locators;
2118 rv = vnet_lisp_add_del_locator_set (a, &ls_index);
2121 error = clib_error_return (0, "failed to %s locator-set!",
2122 is_add ? "add" : "delete");
2126 vec_free (locators);
2127 if (locator_set_name)
2128 vec_free (locator_set_name);
2133 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_set_command) = {
2134 .path = "lisp locator-set",
2135 .short_help = "lisp locator-set add/del <name> [iface <iface-name> "
2136 "p <priority> w <weight>]",
2137 .function = lisp_add_del_locator_set_command_fn,
2141 static clib_error_t *
2142 lisp_add_del_locator_in_set_command_fn (vlib_main_t * vm,
2143 unformat_input_t * input,
2144 vlib_cli_command_t * cmd)
2146 lisp_gpe_main_t *lgm = &lisp_gpe_main;
2147 vnet_main_t *vnm = lgm->vnet_main;
2148 unformat_input_t _line_input, *line_input = &_line_input;
2150 clib_error_t *error = 0;
2151 u8 *locator_set_name = 0;
2152 u8 locator_set_name_set = 0;
2153 locator_t locator, *locators = 0;
2154 vnet_lisp_add_del_locator_set_args_t _a, *a = &_a;
2157 memset (&locator, 0, sizeof (locator));
2158 memset (a, 0, sizeof (a[0]));
2160 /* Get a line of input. */
2161 if (!unformat_user (input, unformat_line_input, line_input))
2164 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2166 if (unformat (line_input, "add"))
2168 else if (unformat (line_input, "del"))
2170 else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name))
2171 locator_set_name_set = 1;
2172 else if (unformat (line_input, "iface %U p %d w %d",
2173 unformat_vnet_sw_interface, vnm,
2174 &locator.sw_if_index, &locator.priority,
2178 vec_add1 (locators, locator);
2182 error = unformat_parse_error (line_input);
2187 if (!locator_set_name_set)
2189 error = clib_error_return (0, "locator_set name not set!");
2193 a->name = locator_set_name;
2194 a->locators = locators;
2198 vnet_lisp_add_del_locator (a, 0, &ls_index);
2201 vec_free (locators);
2202 vec_free (locator_set_name);
2207 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_in_set_command) = {
2208 .path = "lisp locator",
2209 .short_help = "lisp locator add/del locator-set <name> iface <iface-name> "
2210 "p <priority> w <weight>",
2211 .function = lisp_add_del_locator_in_set_command_fn,
2215 static clib_error_t *
2216 lisp_cp_show_locator_sets_command_fn (vlib_main_t * vm,
2217 unformat_input_t * input,
2218 vlib_cli_command_t * cmd)
2220 locator_set_t *lsit;
2223 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2225 vlib_cli_output (vm, "%s%=16s%=16s%=16s", "Locator-set", "Locator",
2226 "Priority", "Weight");
2229 pool_foreach (lsit, lcm->locator_set_pool,
2235 msg = format (msg, "%v", lsit->name);
2239 msg = format (msg, "<%s-%d>", "remote", lsit - lcm->locator_set_pool);
2241 vec_foreach (locit, lsit->locator_indices)
2245 msg = format (msg, "%16s", " ");
2247 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
2249 msg = format (msg, "%16d%16d%16d\n", loc->sw_if_index, loc->priority,
2252 msg = format (msg, "%16U%16d%16d\n", format_ip_address,
2253 &gid_address_ip(&loc->address), loc->priority,
2257 vlib_cli_output (vm, "%v", msg);
2265 VLIB_CLI_COMMAND (lisp_cp_show_locator_sets_command) = {
2266 .path = "show lisp locator-set",
2267 .short_help = "Shows locator-sets",
2268 .function = lisp_cp_show_locator_sets_command_fn,
2272 static map_resolver_t *
2273 get_map_resolver (ip_address_t * a)
2275 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2278 vec_foreach (mr, lcm->map_resolvers)
2280 if (!ip_address_cmp (&mr->address, a))
2289 vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
2291 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2293 map_resolver_t _mr, *mr = &_mr;
2295 if (vnet_lisp_enable_disable_status () == 0)
2297 clib_warning ("LISP is disabled!");
2298 return VNET_API_ERROR_LISP_DISABLED;
2304 if (get_map_resolver (&a->address))
2306 clib_warning ("map-resolver %U already exists!", format_ip_address,
2311 memset (mr, 0, sizeof (*mr));
2312 ip_address_copy (&mr->address, &a->address);
2313 vec_add1 (lcm->map_resolvers, *mr);
2315 if (vec_len (lcm->map_resolvers) == 1)
2316 lcm->do_map_resolver_election = 1;
2320 for (i = 0; i < vec_len (lcm->map_resolvers); i++)
2322 mr = vec_elt_at_index (lcm->map_resolvers, i);
2323 if (!ip_address_cmp (&mr->address, &a->address))
2325 if (!ip_address_cmp (&mr->address, &lcm->active_map_resolver))
2326 lcm->do_map_resolver_election = 1;
2328 vec_del1 (lcm->map_resolvers, i);
2336 static clib_error_t *
2337 lisp_add_del_map_resolver_command_fn (vlib_main_t * vm,
2338 unformat_input_t * input,
2339 vlib_cli_command_t * cmd)
2341 unformat_input_t _line_input, *line_input = &_line_input;
2342 u8 is_add = 1, addr_set = 0;
2343 ip_address_t ip_addr;
2344 clib_error_t *error = 0;
2346 vnet_lisp_add_del_map_resolver_args_t _a, *a = &_a;
2348 /* Get a line of input. */
2349 if (!unformat_user (input, unformat_line_input, line_input))
2352 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2354 if (unformat (line_input, "add"))
2356 else if (unformat (line_input, "del"))
2358 else if (unformat (line_input, "%U", unformat_ip_address, &ip_addr))
2362 error = unformat_parse_error (line_input);
2369 error = clib_error_return (0, "Map-resolver address must be set!");
2374 a->address = ip_addr;
2375 rv = vnet_lisp_add_del_map_resolver (a);
2378 error = clib_error_return (0, "failed to %s map-resolver!",
2379 is_add ? "add" : "delete");
2387 VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = {
2388 .path = "lisp map-resolver",
2389 .short_help = "lisp map-resolver add/del <ip_address>",
2390 .function = lisp_add_del_map_resolver_command_fn,
2395 vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a)
2397 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2400 if (vnet_lisp_enable_disable_status () == 0)
2402 clib_warning ("LISP is disabled!");
2403 return VNET_API_ERROR_LISP_DISABLED;
2408 p = hash_get_mem (lcm->locator_set_index_by_name, a->locator_set_name);
2411 clib_warning ("locator-set %v doesn't exist", a->locator_set_name);
2412 return VNET_API_ERROR_INVALID_ARGUMENT;
2415 lcm->mreq_itr_rlocs = p[0];
2419 lcm->mreq_itr_rlocs = ~0;
2425 static clib_error_t *
2426 lisp_add_del_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2427 unformat_input_t * input,
2428 vlib_cli_command_t * cmd)
2430 unformat_input_t _line_input, *line_input = &_line_input;
2432 u8 *locator_set_name = 0;
2433 clib_error_t *error = 0;
2435 vnet_lisp_add_del_mreq_itr_rloc_args_t _a, *a = &_a;
2437 /* Get a line of input. */
2438 if (!unformat_user (input, unformat_line_input, line_input))
2441 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2443 if (unformat (line_input, "del"))
2445 else if (unformat (line_input, "add %s", &locator_set_name))
2449 error = unformat_parse_error (line_input);
2455 a->locator_set_name = locator_set_name;
2456 rv = vnet_lisp_add_del_mreq_itr_rlocs (a);
2459 error = clib_error_return (0, "failed to %s map-request itr-rlocs!",
2460 is_add ? "add" : "delete");
2463 vec_free (locator_set_name);
2471 VLIB_CLI_COMMAND (lisp_add_del_map_request_command) = {
2472 .path = "lisp map-request itr-rlocs",
2473 .short_help = "lisp map-request itr-rlocs add/del <locator_set_name>",
2474 .function = lisp_add_del_mreq_itr_rlocs_command_fn,
2478 static clib_error_t *
2479 lisp_show_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2480 unformat_input_t * input,
2481 vlib_cli_command_t * cmd)
2483 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2484 locator_set_t *loc_set;
2486 vlib_cli_output (vm, "%=20s", "itr-rlocs");
2488 if (~0 == lcm->mreq_itr_rlocs)
2493 loc_set = pool_elt_at_index (lcm->locator_set_pool, lcm->mreq_itr_rlocs);
2495 vlib_cli_output (vm, "%=20s", loc_set->name);
2501 VLIB_CLI_COMMAND (lisp_show_map_request_command) = {
2502 .path = "show lisp map-request itr-rlocs",
2503 .short_help = "Shows map-request itr-rlocs",
2504 .function = lisp_show_mreq_itr_rlocs_command_fn,
2508 /* Statistics (not really errors) */
2509 #define foreach_lisp_cp_lookup_error \
2511 _(MAP_REQUESTS_SENT, "map-request sent")
2513 static char *lisp_cp_lookup_error_strings[] = {
2514 #define _(sym,string) string,
2515 foreach_lisp_cp_lookup_error
2521 #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
2522 foreach_lisp_cp_lookup_error
2524 LISP_CP_LOOKUP_N_ERROR,
2525 } lisp_cp_lookup_error_t;
2529 LISP_CP_LOOKUP_NEXT_DROP,
2530 LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
2531 LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
2532 LISP_CP_LOOKUP_N_NEXT,
2533 } lisp_cp_lookup_next_t;
2537 gid_address_t dst_eid;
2538 ip_address_t map_resolver_ip;
2539 } lisp_cp_lookup_trace_t;
2542 format_lisp_cp_lookup_trace (u8 * s, va_list * args)
2544 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2545 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2546 lisp_cp_lookup_trace_t *t = va_arg (*args, lisp_cp_lookup_trace_t *);
2548 s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
2549 format_ip_address, &t->map_resolver_ip, format_gid_address,
2555 get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip,
2556 ip_address_t * sloc)
2558 map_resolver_t *mrit;
2561 if (vec_len (lcm->map_resolvers) == 0)
2563 clib_warning ("No map-resolver configured");
2567 /* find the first mr ip we have a route to and the ip of the
2568 * iface that has a route to it */
2569 vec_foreach (mrit, lcm->map_resolvers)
2572 if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, a, sloc))
2574 ip_address_copy (mr_ip, a);
2576 /* also update globals */
2581 clib_warning ("Can't find map-resolver and local interface ip!");
2585 static gid_address_t *
2586 build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
2592 ip_interface_address_t *ia = 0;
2593 gid_address_t gid_data, *gid = &gid_data;
2594 gid_address_t *rlocs = 0;
2595 ip_prefix_t *ippref = &gid_address_ippref (gid);
2596 ip_address_t *rloc = &ip_prefix_addr (ippref);
2598 memset (gid, 0, sizeof (gid[0]));
2599 gid_address_type (gid) = GID_ADDR_IP_PREFIX;
2600 for (i = 0; i < vec_len (loc_set->locator_indices); i++)
2602 loc_indexp = vec_elt_at_index (loc_set->locator_indices, i);
2603 loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
2605 /* Add ipv4 locators first TODO sort them */
2608 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
2609 loc->sw_if_index, 1 /* unnumbered */,
2611 addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
2612 ip_address_set (rloc, addr, IP4);
2613 ip_prefix_len (ippref) = 32;
2614 ip_prefix_normalize (ippref);
2615 vec_add1 (rlocs, gid[0]);
2618 /* Add ipv6 locators */
2619 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
2620 loc->sw_if_index, 1 /* unnumbered */,
2622 addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
2623 ip_address_set (rloc, addr, IP6);
2624 ip_prefix_len (ippref) = 128;
2625 ip_prefix_normalize (ippref);
2626 vec_add1 (rlocs, gid[0]);
2634 static vlib_buffer_t *
2635 build_encapsulated_map_request (lisp_cp_main_t * lcm,
2636 gid_address_t * seid, gid_address_t * deid,
2637 locator_set_t * loc_set, ip_address_t * mr_ip,
2638 ip_address_t * sloc, u8 is_smr_invoked,
2639 u64 * nonce_res, u32 * bi_res)
2643 gid_address_t *rlocs = 0;
2644 vlib_main_t *vm = lcm->vlib_main;
2646 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
2648 clib_warning ("Can't allocate buffer for Map-Request!");
2652 b = vlib_get_buffer (vm, bi);
2654 /* leave some space for the encap headers */
2655 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
2658 rlocs = build_itr_rloc_list (lcm, loc_set);
2661 lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, nonce_res);
2663 /* push ecm: udp-ip-lisp */
2664 lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid);
2666 /* push outer ip header */
2667 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc,
2677 reset_pending_mr_counters (pending_map_request_t * r)
2679 r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME;
2684 elect_map_resolver (lisp_cp_main_t * lcm)
2688 vec_foreach (mr, lcm->map_resolvers)
2692 ip_address_copy (&lcm->active_map_resolver, &mr->address);
2693 lcm->do_map_resolver_election = 0;
2700 #define send_encapsulated_map_request(lcm, seid, deid, smr) \
2701 _send_encapsulated_map_request(lcm, seid, deid, smr, 0)
2703 #define resend_encapsulated_map_request(lcm, seid, deid, smr) \
2704 _send_encapsulated_map_request(lcm, seid, deid, smr, 1)
2707 _send_encapsulated_map_request (lisp_cp_main_t * lcm,
2708 gid_address_t * seid, gid_address_t * deid,
2709 u8 is_smr_invoked, u8 is_resend)
2712 u32 next_index, bi = 0, *to_next, map_index;
2716 locator_set_t *loc_set;
2718 pending_map_request_t *pmr, *duplicate_pmr = 0;
2722 ASSERT (*lcm->pending_map_request_lock);
2724 /* if there is already a pending request remember it */
2727 pool_foreach(pmr, lcm->pending_map_requests_pool,
2729 if (!gid_address_cmp (&pmr->src, seid)
2730 && !gid_address_cmp (&pmr->dst, deid))
2732 duplicate_pmr = pmr;
2738 if (!is_resend && duplicate_pmr)
2740 /* don't send the request if there is a pending map request already */
2744 /* get locator-set for seid */
2745 if (!lcm->lisp_pitr)
2747 map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
2748 if (map_index == ~0)
2750 clib_warning ("No local mapping found in eid-table for %U!",
2751 format_gid_address, seid);
2755 map = pool_elt_at_index (lcm->mapping_pool, map_index);
2760 ("Mapping found for src eid %U is not marked as local!",
2761 format_gid_address, seid);
2764 ls_index = map->locator_set_index;
2768 map_index = lcm->pitr_map_index;
2769 map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
2770 ls_index = map->locator_set_index;
2773 /* overwrite locator set if map-request itr-rlocs configured */
2774 if (~0 != lcm->mreq_itr_rlocs)
2776 ls_index = lcm->mreq_itr_rlocs;
2779 loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index);
2781 while (lcm->do_map_resolver_election
2782 | (0 == ip_fib_get_first_egress_ip_for_dst (lcm,
2783 &lcm->active_map_resolver,
2786 if (0 == elect_map_resolver (lcm))
2787 /* all Mrs are down */
2790 duplicate_pmr->to_be_removed = 1;
2792 /* restart MR checking by marking all of them up */
2793 vec_foreach (mr, lcm->map_resolvers) mr->is_down = 0;
2799 /* build the encapsulated map request */
2800 b = build_encapsulated_map_request (lcm, seid, deid, loc_set,
2801 &lcm->active_map_resolver,
2802 &sloc, is_smr_invoked, &nonce, &bi);
2807 /* set fib index to default and lookup node */
2808 vnet_buffer (b)->sw_if_index[VLIB_TX] = 0;
2809 next_index = (ip_addr_version (&lcm->active_map_resolver) == IP4) ?
2810 ip4_lookup_node.index : ip6_lookup_node.index;
2812 f = vlib_get_frame_to_node (lcm->vlib_main, next_index);
2814 /* Enqueue the packet */
2815 to_next = vlib_frame_vector_args (f);
2818 vlib_put_frame_to_node (lcm->vlib_main, next_index, f);
2821 /* if there is a pending request already update it */
2823 if (clib_fifo_elts (duplicate_pmr->nonces) >= PENDING_MREQ_QUEUE_LEN)
2825 /* remove the oldest nonce */
2826 u64 CLIB_UNUSED (tmp), *nonce_del;
2827 nonce_del = clib_fifo_head (duplicate_pmr->nonces);
2828 hash_unset (lcm->pending_map_requests_by_nonce, nonce_del[0]);
2829 clib_fifo_sub1 (duplicate_pmr->nonces, tmp);
2832 clib_fifo_add1 (duplicate_pmr->nonces, nonce);
2833 hash_set (lcm->pending_map_requests_by_nonce, nonce,
2834 duplicate_pmr - lcm->pending_map_requests_pool);
2838 /* add map-request to pending requests table */
2839 pool_get (lcm->pending_map_requests_pool, pmr);
2840 memset (pmr, 0, sizeof (*pmr));
2841 gid_address_copy (&pmr->src, seid);
2842 gid_address_copy (&pmr->dst, deid);
2843 clib_fifo_add1 (pmr->nonces, nonce);
2844 pmr->is_smr_invoked = is_smr_invoked;
2845 reset_pending_mr_counters (pmr);
2846 hash_set (lcm->pending_map_requests_by_nonce, nonce,
2847 pmr - lcm->pending_map_requests_pool);
2854 get_src_and_dst_ip (void *hdr, ip_address_t * src, ip_address_t * dst)
2856 ip4_header_t *ip4 = hdr;
2859 if ((ip4->ip_version_and_header_length & 0xF0) == 0x40)
2861 ip_address_set (src, &ip4->src_address, IP4);
2862 ip_address_set (dst, &ip4->dst_address, IP4);
2867 ip_address_set (src, &ip6->src_address, IP6);
2868 ip_address_set (dst, &ip6->dst_address, IP6);
2873 lisp_get_vni_from_buffer_ip (lisp_cp_main_t * lcm, vlib_buffer_t * b,
2877 u32 vni = ~0, table_id = ~0;
2880 fib_table_get_table_id_for_sw_if_index (vnet_buffer (b)->sw_if_index
2883 IP4 ? FIB_PROTOCOL_IP4 :
2886 vnip = hash_get (lcm->vni_by_table_id, table_id);
2890 clib_warning ("vrf %d is not mapped to any vni!", table_id);
2896 lisp_get_vni_from_buffer_eth (lisp_cp_main_t * lcm, vlib_buffer_t * b)
2902 l2input_main_t *l2im = &l2input_main;
2903 l2_input_config_t *config;
2904 l2_bridge_domain_t *bd_config;
2906 sw_if_index0 = vnet_buffer (b)->sw_if_index[VLIB_RX];
2907 config = vec_elt_at_index (l2im->configs, sw_if_index0);
2908 bd_config = vec_elt_at_index (l2im->bd_configs, config->bd_index);
2910 vnip = hash_get (lcm->vni_by_bd_id, bd_config->bd_id);
2914 clib_warning ("bridge domain %d is not mapped to any vni!",
2921 get_src_and_dst_eids_from_buffer (lisp_cp_main_t * lcm, vlib_buffer_t * b,
2922 gid_address_t * src, gid_address_t * dst)
2927 memset (src, 0, sizeof (*src));
2928 memset (dst, 0, sizeof (*dst));
2929 type = vnet_buffer (b)->lisp.overlay_afi;
2931 if (LISP_AFI_IP == type || LISP_AFI_IP6 == type)
2934 u8 version, preflen;
2936 gid_address_type (src) = GID_ADDR_IP_PREFIX;
2937 gid_address_type (dst) = GID_ADDR_IP_PREFIX;
2939 ip = vlib_buffer_get_current (b);
2940 get_src_and_dst_ip (ip, &gid_address_ip (src), &gid_address_ip (dst));
2942 version = gid_address_ip_version (src);
2943 preflen = ip_address_max_len (version);
2944 gid_address_ippref_len (src) = preflen;
2945 gid_address_ippref_len (dst) = preflen;
2947 vni = lisp_get_vni_from_buffer_ip (lcm, b, version);
2948 gid_address_vni (dst) = vni;
2949 gid_address_vni (src) = vni;
2951 else if (LISP_AFI_MAC == type)
2953 ethernet_header_t *eh;
2955 eh = vlib_buffer_get_current (b);
2957 gid_address_type (src) = GID_ADDR_MAC;
2958 gid_address_type (dst) = GID_ADDR_MAC;
2959 mac_copy (&gid_address_mac (src), eh->src_address);
2960 mac_copy (&gid_address_mac (dst), eh->dst_address);
2963 vni = lisp_get_vni_from_buffer_eth (lcm, b);
2965 gid_address_vni (dst) = vni;
2966 gid_address_vni (src) = vni;
2971 lisp_cp_lookup_inline (vlib_main_t * vm,
2972 vlib_node_runtime_t * node,
2973 vlib_frame_t * from_frame, int overlay)
2975 u32 *from, *to_next_drop, di, si;
2976 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2977 u32 pkts_mapped = 0;
2978 uword n_left_from, n_left_to_next_drop;
2980 from = vlib_frame_vector_args (from_frame);
2981 n_left_from = from_frame->n_vectors;
2983 while (n_left_from > 0)
2985 vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
2986 to_next_drop, n_left_to_next_drop);
2988 while (n_left_from > 0 && n_left_to_next_drop > 0)
2992 gid_address_t src, dst;
2997 to_next_drop[0] = pi0;
2999 n_left_to_next_drop -= 1;
3001 b0 = vlib_get_buffer (vm, pi0);
3002 b0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
3003 vnet_buffer (b0)->lisp.overlay_afi = overlay;
3005 /* src/dst eid pair */
3006 get_src_and_dst_eids_from_buffer (lcm, b0, &src, &dst);
3008 /* if we have remote mapping for destination already in map-chache
3009 add forwarding tunnel directly. If not send a map-request */
3010 di = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst);
3013 mapping_t *m = vec_elt_at_index (lcm->mapping_pool, di);
3014 /* send a map-request also in case of negative mapping entry
3015 with corresponding action */
3016 if (m->action == LISP_SEND_MAP_REQUEST)
3018 /* send map-request */
3019 queue_map_request (&src, &dst, 0 /* smr_invoked */ ,
3020 0 /* is_resend */ );
3025 si = gid_dictionary_lookup (&lcm->mapping_index_by_gid,
3029 dp_add_fwd_entry (lcm, si, di);
3035 /* send map-request */
3036 queue_map_request (&src, &dst, 0 /* smr_invoked */ ,
3037 0 /* is_resend */ );
3041 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
3043 lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, b0,
3046 memset (tr, 0, sizeof (*tr));
3047 gid_address_copy (&tr->dst_eid, &dst);
3048 ip_address_copy (&tr->map_resolver_ip,
3049 &lcm->active_map_resolver);
3051 gid_address_free (&dst);
3052 gid_address_free (&src);
3055 vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
3056 n_left_to_next_drop);
3058 vlib_node_increment_counter (vm, node->node_index,
3059 LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
3061 return from_frame->n_vectors;
3065 lisp_cp_lookup_ip4 (vlib_main_t * vm,
3066 vlib_node_runtime_t * node, vlib_frame_t * from_frame)
3068 return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_IP));
3072 lisp_cp_lookup_ip6 (vlib_main_t * vm,
3073 vlib_node_runtime_t * node, vlib_frame_t * from_frame)
3075 return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_IP6));
3079 VLIB_REGISTER_NODE (lisp_cp_lookup_ip4_node) = {
3080 .function = lisp_cp_lookup_ip4,
3081 .name = "lisp-cp-lookup-ip4",
3082 .vector_size = sizeof (u32),
3083 .format_trace = format_lisp_cp_lookup_trace,
3084 .type = VLIB_NODE_TYPE_INTERNAL,
3086 .n_errors = LISP_CP_LOOKUP_N_ERROR,
3087 .error_strings = lisp_cp_lookup_error_strings,
3089 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
3092 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
3093 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
3094 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
3100 VLIB_REGISTER_NODE (lisp_cp_lookup_ip6_node) = {
3101 .function = lisp_cp_lookup_ip6,
3102 .name = "lisp-cp-lookup-ip6",
3103 .vector_size = sizeof (u32),
3104 .format_trace = format_lisp_cp_lookup_trace,
3105 .type = VLIB_NODE_TYPE_INTERNAL,
3107 .n_errors = LISP_CP_LOOKUP_N_ERROR,
3108 .error_strings = lisp_cp_lookup_error_strings,
3110 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
3113 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
3114 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
3115 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
3120 /* lisp_cp_input statistics */
3121 #define foreach_lisp_cp_input_error \
3123 _(MAP_REPLIES_RECEIVED, "map-replies received")
3125 static char *lisp_cp_input_error_strings[] = {
3126 #define _(sym,string) string,
3127 foreach_lisp_cp_input_error
3133 #define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
3134 foreach_lisp_cp_input_error
3136 LISP_CP_INPUT_N_ERROR,
3137 } lisp_cp_input_error_t;
3141 LISP_CP_INPUT_NEXT_DROP,
3142 LISP_CP_INPUT_N_NEXT,
3143 } lisp_cp_input_next_t;
3147 gid_address_t dst_eid;
3148 ip4_address_t map_resolver_ip;
3149 } lisp_cp_input_trace_t;
3152 format_lisp_cp_input_trace (u8 * s, va_list * args)
3154 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
3155 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
3156 CLIB_UNUSED (lisp_cp_input_trace_t * t) =
3157 va_arg (*args, lisp_cp_input_trace_t *);
3159 s = format (s, "LISP-CP-INPUT: TODO");
3164 process_map_reply (void *arg)
3166 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3167 vlib_buffer_t *b = arg;
3168 u32 len = 0, i, ttl, dst_map_index = 0;
3170 pending_map_request_t *pmr;
3172 map_reply_hdr_t *mrep_hdr;
3176 u8 authoritative, action;
3177 locator_t *locators = 0, *loc;
3179 mrep_hdr = vlib_buffer_get_current (b);
3181 lisp_pending_map_request_lock (lcm);
3183 /* Check pending requests table and nonce */
3184 nonce = MREP_NONCE (mrep_hdr);
3185 pmr_index = hash_get (lcm->pending_map_requests_by_nonce, nonce);
3188 clib_warning ("No pending map-request entry with nonce %lu!", nonce);
3191 pmr = pool_elt_at_index (lcm->pending_map_requests_pool, pmr_index[0]);
3193 vlib_buffer_pull (b, sizeof (*mrep_hdr));
3195 for (i = 0; i < MREP_REC_COUNT (mrep_hdr); i++)
3197 h = vlib_buffer_get_current (b);
3198 ttl = clib_net_to_host_u32 (MAP_REC_TTL (h));
3199 action = MAP_REC_ACTION (h);
3200 authoritative = MAP_REC_AUTH (h);
3202 len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed);
3205 clib_warning ("Failed to parse mapping record!");
3206 vec_foreach (loc, locators)
3210 vec_free (locators);
3214 /* insert/update mappings cache */
3215 vnet_lisp_add_del_mapping (&deid, locators, action, authoritative, ttl,
3216 1, 0 /* is_static */ , &dst_map_index);
3218 /* try to program forwarding only if mapping saved or updated */
3219 if ((u32) ~ 0 != dst_map_index)
3220 lisp_add_del_adjacency (lcm, &pmr->src, &deid, 1);
3222 vec_free (locators);
3225 /* remove pending map request entry */
3228 clib_fifo_foreach (noncep, pmr->nonces, ({
3229 hash_unset(lcm->pending_map_requests_by_nonce, noncep[0]);
3233 clib_fifo_free (pmr->nonces);
3234 pool_put (lcm->pending_map_requests_pool, pmr);
3237 lisp_pending_map_request_unlock (lcm);
3242 process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm,
3245 map_request_hdr_t *mreq_hdr;
3246 gid_address_t src, dst;
3249 gid_address_t *itr_rlocs = 0, *rloc;
3251 mreq_hdr = vlib_buffer_get_current (b);
3252 vlib_buffer_pull (b, sizeof (*mreq_hdr));
3254 // nonce = MREQ_NONCE(mreq_hdr);
3256 if (!MREQ_SMR (mreq_hdr))
3258 clib_warning ("Only SMR Map-Requests supported for now!");
3263 len = lisp_msg_parse_addr (b, &src);
3267 /* for now we don't do anything with the itr's rlocs */
3269 lisp_msg_parse_itr_rlocs (b, &itr_rlocs,
3270 MREQ_ITR_RLOC_COUNT (mreq_hdr) + 1);
3274 /* TODO: RLOCs are currently unused, so free them for now */
3275 vec_foreach (rloc, itr_rlocs)
3277 gid_address_free (rloc);
3280 /* parse eid records and send SMR-invoked map-requests */
3281 for (i = 0; i < MREQ_REC_COUNT (mreq_hdr); i++)
3283 memset (&dst, 0, sizeof (dst));
3284 len = lisp_msg_parse_eid_rec (b, &dst);
3287 clib_warning ("Can't parse map-request EID-record");
3290 /* send SMR-invoked map-requests */
3291 queue_map_request (&dst, &src, 1 /* invoked */ , 0 /* resend */ );
3296 queue_map_reply (vlib_buffer_t * b)
3298 vlib_buffer_t *a = clib_mem_alloc (sizeof (a[0]) + b->current_length);
3300 clib_memcpy (a->data, b->data + b->current_data, b->current_length);
3301 a->current_length = b->current_length;
3302 a->current_data = 0;
3304 vl_api_rpc_call_main_thread (process_map_reply, (u8 *) a, sizeof (a[0])
3305 + a->current_length);
3310 lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
3311 vlib_frame_t * from_frame)
3313 u32 n_left_from, *from, *to_next_drop;
3314 lisp_msg_type_e type;
3315 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3317 from = vlib_frame_vector_args (from_frame);
3318 n_left_from = from_frame->n_vectors;
3321 while (n_left_from > 0)
3323 u32 n_left_to_next_drop;
3325 vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
3326 to_next_drop, n_left_to_next_drop);
3327 while (n_left_from > 0 && n_left_to_next_drop > 0)
3335 to_next_drop[0] = bi0;
3337 n_left_to_next_drop -= 1;
3339 b0 = vlib_get_buffer (vm, bi0);
3341 type = lisp_msg_type (vlib_buffer_get_current (b0));
3344 case LISP_MAP_REPLY:
3345 queue_map_reply (b0);
3347 case LISP_MAP_REQUEST:
3348 process_map_request (vm, lcm, b0);
3351 clib_warning ("Unsupported LISP message type %d", type);
3355 b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP];
3357 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
3363 vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
3364 n_left_to_next_drop);
3366 return from_frame->n_vectors;
3370 VLIB_REGISTER_NODE (lisp_cp_input_node) = {
3371 .function = lisp_cp_input,
3372 .name = "lisp-cp-input",
3373 .vector_size = sizeof (u32),
3374 .format_trace = format_lisp_cp_input_trace,
3375 .type = VLIB_NODE_TYPE_INTERNAL,
3377 .n_errors = LISP_CP_INPUT_N_ERROR,
3378 .error_strings = lisp_cp_input_error_strings,
3380 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
3383 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
3389 lisp_cp_init (vlib_main_t * vm)
3391 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3392 clib_error_t *error = 0;
3394 if ((error = vlib_call_init_function (vm, lisp_gpe_init)))
3397 lcm->im4 = &ip4_main;
3398 lcm->im6 = &ip6_main;
3399 lcm->vlib_main = vm;
3400 lcm->vnet_main = vnet_get_main ();
3401 lcm->mreq_itr_rlocs = ~0;
3403 memset (&lcm->active_map_resolver, 0, sizeof (lcm->active_map_resolver));
3405 lcm->pending_map_request_lock =
3406 clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
3408 lcm->pending_map_request_lock[0] = 0;
3409 gid_dictionary_init (&lcm->mapping_index_by_gid);
3410 lcm->do_map_resolver_election = 1;
3412 /* default vrf mapped to vni 0 */
3413 hash_set (lcm->table_id_by_vni, 0, 0);
3414 hash_set (lcm->vni_by_table_id, 0, 0);
3416 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp,
3417 lisp_cp_input_node.index, 1 /* is_ip4 */ );
3418 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6,
3419 lisp_cp_input_node.index, 0 /* is_ip4 */ );
3425 send_map_request_thread_fn (void *arg)
3427 map_request_args_t *a = arg;
3428 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3430 lisp_pending_map_request_lock (lcm);
3433 resend_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked);
3435 send_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked);
3437 lisp_pending_map_request_unlock (lcm);
3443 queue_map_request (gid_address_t * seid, gid_address_t * deid,
3444 u8 smr_invoked, u8 is_resend)
3446 map_request_args_t a;
3448 a.is_resend = is_resend;
3449 gid_address_copy (&a.seid, seid);
3450 gid_address_copy (&a.deid, deid);
3451 a.smr_invoked = smr_invoked;
3453 vl_api_rpc_call_main_thread (send_map_request_thread_fn,
3454 (u8 *) & a, sizeof (a));
3459 * Take an action with a pending map request depending on expiration time
3460 * and re-try counters.
3463 update_pending_request (pending_map_request_t * r, f64 dt)
3465 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3468 if (r->time_to_expire - dt < 0)
3469 /* it's time to decide what to do with this pending request */
3471 if (r->retries_num >= NUMBER_OF_RETRIES)
3472 /* too many retries -> assume current map resolver is not available */
3474 mr = get_map_resolver (&lcm->active_map_resolver);
3477 clib_warning ("Map resolver %U not found - probably deleted "
3478 "by the user recently.", format_ip_address,
3479 &lcm->active_map_resolver);
3483 clib_warning ("map resolver %U is unreachable, ignoring",
3484 format_ip_address, &lcm->active_map_resolver);
3486 /* mark current map resolver unavailable so it won't be
3487 * selected next time */
3489 mr->last_update = vlib_time_now (lcm->vlib_main);
3492 reset_pending_mr_counters (r);
3493 elect_map_resolver (lcm);
3495 /* try to find a next eligible map resolver and re-send */
3496 queue_map_request (&r->src, &r->dst, r->is_smr_invoked,
3502 queue_map_request (&r->src, &r->dst, r->is_smr_invoked,
3505 r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME;
3509 r->time_to_expire -= dt;
3513 remove_dead_pending_map_requests (lisp_cp_main_t * lcm)
3516 pending_map_request_t *pmr;
3517 u32 *to_be_removed = 0, *pmr_index;
3519 ASSERT (*lcm->pending_map_request_lock);
3522 pool_foreach (pmr, lcm->pending_map_requests_pool,
3524 if (pmr->to_be_removed)
3526 clib_fifo_foreach (nonce, pmr->nonces, ({
3527 hash_unset (lcm->pending_map_requests_by_nonce, nonce[0]);
3530 vec_add1 (to_be_removed, pmr - lcm->pending_map_requests_pool);
3535 vec_foreach (pmr_index, to_be_removed)
3536 pool_put_index (lcm->pending_map_requests_by_nonce, pmr_index[0]);
3538 vec_free (to_be_removed);
3542 send_map_resolver_service (vlib_main_t * vm,
3543 vlib_node_runtime_t * rt, vlib_frame_t * f)
3546 pending_map_request_t *pmr;
3547 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3551 vlib_process_wait_for_event_or_clock (vm, period);
3553 /* currently no signals are expected - just wait for clock */
3554 (void) vlib_process_get_events (vm, 0);
3556 lisp_pending_map_request_lock (lcm);
3559 pool_foreach (pmr, lcm->pending_map_requests_pool,
3561 if (!pmr->to_be_removed)
3562 update_pending_request (pmr, period);
3566 remove_dead_pending_map_requests (lcm);
3568 lisp_pending_map_request_unlock (lcm);
3576 VLIB_REGISTER_NODE (lisp_retry_service_node,static) = {
3577 .function = send_map_resolver_service,
3578 .type = VLIB_NODE_TYPE_PROCESS,
3579 .name = "lisp-retry-service",
3580 .process_log2_n_stack_bytes = 16,
3584 VLIB_INIT_FUNCTION (lisp_cp_init);
3587 * fd.io coding-style-patch-verification: ON
3590 * eval: (c-set-style "gnu")