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 /* Stores mapping in map-cache. It does NOT program data plane forwarding for
22 * remote/learned mappings. */
24 vnet_lisp_add_del_mapping (vnet_lisp_add_del_mapping_args_t * a,
25 u32 * map_index_result)
27 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
28 u32 mi, * map_indexp, map_index, i;
32 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->deid);
35 /* TODO check if overwriting and take appropriate actions */
36 if (mi != GID_LOOKUP_MISS)
38 clib_warning("eid %U found in the eid-table", format_ip_address,
40 return VNET_API_ERROR_VALUE_EXIST;
43 pool_get(lcm->mapping_pool, m);
45 m->locator_set_index = a->locator_set_index;
49 map_index = m - lcm->mapping_pool;
50 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->deid, map_index,
53 if (pool_is_free_index(lcm->locator_set_pool, a->locator_set_index))
55 clib_warning("Locator set with index %d doesn't exist",
56 a->locator_set_index);
57 return VNET_API_ERROR_INVALID_VALUE;
60 /* add eid to list of eids supported by locator-set */
61 vec_validate (lcm->locator_set_to_eids, a->locator_set_index);
62 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids,
63 a->locator_set_index);
64 vec_add1(eid_indexes[0], map_index);
69 vec_add1(lcm->local_mappings_indexes, map_index);
71 map_index_result[0] = map_index;
75 if (mi == GID_LOOKUP_MISS)
77 clib_warning("eid %U not found in the eid-table", format_ip_address,
79 return VNET_API_ERROR_INVALID_VALUE;
82 /* clear locator-set to eids binding */
83 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids,
84 a->locator_set_index);
85 for (i = 0; i < vec_len(eid_indexes[0]); i++)
87 map_indexp = vec_elt_at_index(eid_indexes[0], i);
88 if (map_indexp[0] == mi)
91 vec_del1(eid_indexes[0], i);
93 /* remove local mark if needed */
94 m = pool_elt_at_index(lcm->mapping_pool, mi);
98 for (k = 0; k < vec_len(lcm->local_mappings_indexes); k++)
100 lm_indexp = vec_elt_at_index(lcm->local_mappings_indexes, k);
101 if (lm_indexp[0] == mi)
104 vec_del1(lcm->local_mappings_indexes, k);
108 /* remove tunnel ??? */
111 /* remove mapping from dictionary */
112 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->deid, 0, 0);
113 pool_put_index (lcm->mapping_pool, mi);
119 /* Stores mapping in map-cache and programs data plane for local mappings. */
121 vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a,
122 u32 * map_index_result)
124 uword * table_id, * refc;
126 vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai;
127 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
129 vni = gid_address_vni(&a->deid);
131 /* store/remove mapping from map-cache */
132 rv = vnet_lisp_add_del_mapping (a, map_index_result);
136 table_id = hash_get(lcm->table_id_by_vni, vni);
140 clib_warning ("vni %d not associated to a vrf!", vni);
141 return VNET_API_ERROR_INVALID_VALUE;
144 refc = hash_get(lcm->dp_if_refcount_by_vni, vni);
146 /* enable/disable data-plane interface */
149 /* create interface or update refcount */
154 ai->table_id = table_id[0];
155 vnet_lisp_gpe_add_del_iface (ai, 0);
157 /* counts the number of eids in a vni that use the interface */
158 hash_set(lcm->dp_if_refcount_by_vni, vni, 1);
167 /* since this is a remove for an existing eid, the iface should exist */
171 /* remove iface if needed */
176 ai->table_id = table_id[0];
177 vnet_lisp_gpe_add_del_iface (ai, 0);
184 static clib_error_t *
185 lisp_add_del_local_eid_command_fn (vlib_main_t * vm, unformat_input_t * input,
186 vlib_cli_command_t * cmd)
188 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
189 unformat_input_t _line_input, * line_input = &_line_input;
192 ip_prefix_t * prefp = &gid_address_ippref(&eid);
193 gid_address_t * eids = 0;
194 clib_error_t * error = 0;
195 u8 * locator_set_name;
196 u32 locator_set_index = 0, map_index = 0;
198 vnet_lisp_add_del_mapping_args_t _a, * a = &_a;
200 gid_address_type (&eid) = GID_ADDR_IP_PREFIX;
202 /* Get a line of input. */
203 if (! unformat_user (input, unformat_line_input, line_input))
206 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
208 if (unformat (line_input, "add"))
210 else if (unformat (line_input, "del"))
212 else if (unformat (line_input, "eid %U", unformat_ip_prefix, prefp))
216 else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name))
218 p = hash_get_mem(lcm->locator_set_index_by_name, locator_set_name);
221 error = clib_error_return(0, "locator-set %s doesn't exist",
225 locator_set_index = p[0];
229 error = unformat_parse_error(line_input);
234 /* XXX treat batch configuration */
237 a->locator_set_index = locator_set_index;
240 vnet_lisp_add_del_local_mapping (a, &map_index);
246 VLIB_CLI_COMMAND (lisp_add_del_local_eid_command) = {
247 .path = "lisp eid-table",
248 .short_help = "lisp eid-table add/del eid <eid> locator-set <locator-set>",
249 .function = lisp_add_del_local_eid_command_fn,
252 static clib_error_t *
253 lisp_show_local_eid_table_command_fn (vlib_main_t * vm,
254 unformat_input_t * input,
255 vlib_cli_command_t * cmd)
257 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
260 vlib_cli_output (vm, "%=20s%=16s", "EID", "Locator");
261 pool_foreach (mapit, lcm->mapping_pool,
264 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
265 mapit->locator_set_index);
266 vlib_cli_output (vm, "%-16U%16v", format_gid_address, &mapit->eid,
274 VLIB_CLI_COMMAND (lisp_cp_show_local_eid_table_command) = {
275 .path = "show lisp eid-table",
276 .short_help = "Shows local EID table",
277 .function = lisp_show_local_eid_table_command_fn,
280 /* cleans locator to locator-set data and removes locators not part of
283 clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi)
285 u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes;
286 locator_set_t * ls = pool_elt_at_index(lcm->locator_set_pool, lsi);
287 for (i = 0; i < vec_len(ls->locator_indices); i++)
289 loc_indexp = vec_elt_at_index(ls->locator_indices, i);
290 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
292 for (j = 0; j < vec_len(ls_indexes[0]); j++)
294 ls_indexp = vec_elt_at_index(ls_indexes[0], j);
295 if (ls_indexp[0] == lsi)
299 /* delete index for removed locator-set*/
300 vec_del1(ls_indexes[0], j);
302 /* delete locator if it's part of no locator-set */
303 if (vec_len (ls_indexes[0]) == 0)
304 pool_put_index(lcm->locator_pool, loc_indexp[0]);
308 vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
311 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
313 locator_t * loc, * itloc;
314 uword _p = (u32)~0, * p = &_p;
315 u32 loc_index, ls_index, ** ls_indexes;
320 /* check if overwrite */
322 p = hash_get_mem(lcm->locator_set_index_by_name, a->name);
327 if (p && p[0] != (u32)~0)
329 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
332 clib_warning("locator-set %d to be overwritten doesn't exist!",
337 /* clean locator to locator-set vectors and remove locators if
338 * they're not part of another locator-set */
339 clean_locator_to_locator_set (lcm, p[0]);
341 /* remove locator indices from locator set */
342 vec_free(ls->locator_indices);
349 /* new locator-set */
352 pool_get(lcm->locator_set_pool, ls);
353 ls_index = ls - lcm->locator_set_pool;
357 ls->name = vec_dup(a->name);
359 if (!lcm->locator_set_index_by_name)
360 lcm->locator_set_index_by_name = hash_create_vec(
361 /* size */0, sizeof(ls->name[0]), sizeof(uword));
362 hash_set_mem(lcm->locator_set_index_by_name, ls->name, ls_index);
364 /* mark as local locator-set */
365 vec_add1(lcm->local_locator_set_indexes, ls_index);
367 ls->local = a->local;
369 ls_result[0] = ls_index;
372 /* allocate locators */
373 vec_foreach (itloc, a->locators)
375 pool_get(lcm->locator_pool, loc);
377 loc_index = loc - lcm->locator_pool;
379 vec_add1(ls->locator_indices, loc_index);
381 vec_validate (lcm->locator_to_locator_sets, loc_index);
382 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
384 vec_add1(ls_indexes[0], ls_index);
389 /* find locator-set */
392 p = hash_get_mem(lcm->locator_set_index_by_name, a->name);
395 clib_warning("locator-set %v doesn't exists", a->name);
402 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
405 clib_warning("locator-set with index %d doesn't exists", p[0]);
408 // /* XXX what happens when a mapping is configured to use the loc-set ? */
409 // if (vec_len (vec_elt_at_index(lcm->locator_set_to_eids, p[0])) != 0)
411 // clib_warning ("Can't delete a locator that supports a mapping!");
415 if (vec_len(lcm->locator_set_to_eids) != 0)
417 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, p[0]);
418 if (vec_len(eid_indexes[0]) != 0)
420 clib_warning ("Can't delete a locator that supports a mapping!");
425 /* clean locator to locator-sets data */
426 clean_locator_to_locator_set (lcm, p[0]);
432 vec_foreach_index(it, lcm->local_locator_set_indexes)
434 lsi = vec_elt(lcm->local_locator_set_indexes, it);
437 vec_del1(lcm->local_locator_set_indexes, it);
441 hash_unset_mem(lcm->locator_set_index_by_name, ls->name);
444 pool_put(lcm->locator_set_pool, ls);
450 uword *vnet_lisp_get_locator(vnet_lisp_add_del_locator_set_args_t * a,
453 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
458 /* find locator-set */
461 p = hash_get_mem(lcm->locator_set_index_by_name, a->name);
472 vnet_lisp_add_del_locator_set_name (vnet_lisp_add_del_locator_set_args_t * a,
475 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
477 uword _p = (u32)~0, * p = &_p;
479 u32 **eid_indexes = NULL;
482 ASSERT(ls_result != NULL);
484 p = vnet_lisp_get_locator(a, p);
489 if (p && p[0] != (u32)~0)
491 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
494 clib_warning("locator-set %d to be overwritten doesn't exist!",
496 return VNET_API_ERROR_UNSPECIFIED;
499 /* clean locator to locator-set vectors and remove locators if
500 * they're not part of another locator-set */
501 clean_locator_to_locator_set (lcm, p[0]);
503 /* remove locator indices from locator set */
504 vec_free(ls->locator_indices);
511 /* new locator-set */
514 pool_get(lcm->locator_set_pool, ls);
515 ls_index = ls - lcm->locator_set_pool;
519 ls->name = vec_dup(a->name);
521 if (!lcm->locator_set_index_by_name)
522 lcm->locator_set_index_by_name = hash_create_vec(
523 /* size */0, sizeof(ls->name[0]), sizeof(uword));
524 hash_set_mem(lcm->locator_set_index_by_name, ls->name, ls_index);
526 /* mark as local locator-set */
527 vec_add1(lcm->local_locator_set_indexes, ls_index);
529 ls->local = a->local;
530 ls->locator_indices = NULL;
532 ls_result[0] = ls_index;
539 clib_warning("locator-set %v doesn't exists", a->name);
540 return VNET_API_ERROR_INVALID_ARGUMENT;
543 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
546 clib_warning("locator-set with index %d doesn't exists", p[0]);
547 return VNET_API_ERROR_INVALID_ARGUMENT;
550 if (vec_len(lcm->locator_set_to_eids) != 0)
552 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, p[0]);
553 if (vec_len(eid_indexes[0]) != 0)
555 clib_warning ("Can't delete a locator that supports a mapping!");
560 /* clean locator to locator-sets data */
561 clean_locator_to_locator_set (lcm, p[0]);
567 vec_foreach_index(it, lcm->local_locator_set_indexes)
569 lsi = vec_elt(lcm->local_locator_set_indexes, it);
572 vec_del1(lcm->local_locator_set_indexes, it);
576 hash_unset_mem(lcm->locator_set_index_by_name, ls->name);
579 pool_put(lcm->locator_set_pool, ls);
585 vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t *a,
588 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
589 locator_set_t *ls = NULL;
590 locator_t *loc = NULL, *itloc = NULL;
591 uword _p = (u32)~0, * p = &_p;
592 u32 loc_index = ~0, ls_index = ~0, *locit = NULL, **ls_indexes = NULL;
596 ASSERT(ls_result != NULL);
598 p = vnet_lisp_get_locator(a, p);
600 clib_warning("locator-set %v doesn't exists", a->name);
601 return VNET_API_ERROR_INVALID_ARGUMENT;
608 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
611 clib_warning("locator-set %d to be overwritten doesn't exist!",
613 return VNET_API_ERROR_INVALID_ARGUMENT;
619 /* allocate locators */
621 pool_get(lcm->locator_pool, loc);
623 loc_index = loc - lcm->locator_pool;
625 vec_add1(ls->locator_indices, loc_index);
627 vec_validate (lcm->locator_to_locator_sets, loc_index);
628 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
630 vec_add1(ls_indexes[0], ls_index);
634 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
637 clib_warning("locator-set with index %d doesn't exists", p[0]);
638 return VNET_API_ERROR_INVALID_ARGUMENT;
645 vec_foreach (locit, ls->locator_indices)
647 loc = pool_elt_at_index(lcm->locator_pool, locit[0]);
648 if (loc->local && loc->sw_if_index == itloc->sw_if_index)
650 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
652 pool_put_index(lcm->locator_pool, locit[0]);
653 vec_del1(ls->locator_indices, i);
654 vec_del1(ls_indexes[0], ls_index);
664 vnet_lisp_enable_disable (u8 is_enabled)
666 vnet_lisp_gpe_add_del_iface_args_t _ai, * ai= &_ai;
667 uword * table_id, * refc;
669 clib_error_t * error = 0;
670 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
671 vnet_lisp_gpe_enable_disable_args_t _a, * a = &_a;
673 a->is_en = is_enabled;
674 error = vnet_lisp_gpe_enable_disable (a);
677 return clib_error_return (0, "failed to %s data-plane!",
678 a->is_en ? "enable" : "disable");
683 /* enable all ifaces */
684 for (i = 0; i < vec_len (lcm->local_mappings_indexes); i++)
686 mapping_t * m = vec_elt_at_index (lcm->mapping_pool, i);
688 ai->vni = gid_address_vni (&m->eid);
690 refc = hash_get (lcm->dp_if_refcount_by_vni, ai->vni);
693 table_id = hash_get (lcm->table_id_by_vni, ai->vni);
696 ai->table_id = table_id[0];
697 /* enables interface and adds defaults */
698 vnet_lisp_gpe_add_del_iface (ai, 0);
701 return clib_error_return (0, "no table_id found for vni %u!",
704 hash_set (lcm->dp_if_refcount_by_vni, ai->vni, 1);
714 /* clear refcount table */
715 hash_free (lcm->dp_if_refcount_by_vni);
718 /* update global flag */
719 lcm->is_enabled = is_enabled;
724 static clib_error_t *
725 lisp_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input,
726 vlib_cli_command_t * cmd)
728 unformat_input_t _line_input, * line_input = &_line_input;
732 /* Get a line of input. */
733 if (! unformat_user (input, unformat_line_input, line_input))
736 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
738 if (unformat (line_input, "enable"))
743 else if (unformat (line_input, "disable"))
747 return clib_error_return (0, "parse error: '%U'",
748 format_unformat_error, line_input);
753 return clib_error_return (0, "state not set");
755 return vnet_lisp_enable_disable (is_enabled);
758 VLIB_CLI_COMMAND (lisp_cp_enable_disable_command) = {
760 .short_help = "lisp [enable|disable]",
761 .function = lisp_enable_disable_command_fn,
765 vnet_lisp_enable_disable_status (void)
767 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
768 return lcm->is_enabled;
772 format_lisp_status (u8 * s, va_list * args)
774 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
775 return format (s, "%s", lcm->is_enabled ? "enabled" : "disabled");
778 static clib_error_t *
779 lisp_show_status_command_fn (vlib_main_t * vm, unformat_input_t * input,
780 vlib_cli_command_t * cmd)
783 msg = format (msg, "feature: %U\ngpe: %U\n",
784 format_lisp_status, format_vnet_lisp_gpe_status);
785 vlib_cli_output (vm, "%v", msg);
790 VLIB_CLI_COMMAND (lisp_show_status_command) = {
791 .path = "show lisp status",
792 .short_help = "show lisp status",
793 .function = lisp_show_status_command_fn,
795 static clib_error_t *
796 lisp_add_del_locator_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
797 vlib_cli_command_t * cmd)
799 lisp_gpe_main_t * lgm = &lisp_gpe_main;
800 vnet_main_t * vnm = lgm->vnet_main;
801 unformat_input_t _line_input, * line_input = &_line_input;
803 clib_error_t * error = 0;
804 u8 * locator_set_name = 0;
805 locator_t locator, * locators = 0;
806 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
809 memset(&locator, 0, sizeof(locator));
810 memset(a, 0, sizeof(a[0]));
812 /* Get a line of input. */
813 if (! unformat_user (input, unformat_line_input, line_input))
816 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
818 if (unformat (line_input, "add %_%v%_", &locator_set_name))
820 else if (unformat (line_input, "del %_%v%_", &locator_set_name))
822 else if (unformat (line_input, "iface %U p %d w %d",
823 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
824 &locator.priority, &locator.weight))
827 vec_add1(locators, locator);
831 error = unformat_parse_error(line_input);
836 a->name = locator_set_name;
837 a->locators = locators;
841 vnet_lisp_add_del_locator_set(a, &ls_index);
845 vec_free(locator_set_name);
849 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_set_command) = {
850 .path = "lisp locator-set",
851 .short_help = "lisp locator-set add/del <name> iface <iface-name> "
852 "<priority> <weight>",
853 .function = lisp_add_del_locator_set_command_fn,
856 static clib_error_t *
857 lisp_cp_show_locator_sets_command_fn (vlib_main_t * vm,
858 unformat_input_t * input,
859 vlib_cli_command_t * cmd)
861 locator_set_t * lsit;
864 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
866 vlib_cli_output (vm, "%=20s%=16s%=16s%=16s", "Locator-set", "Locator",
867 "Priority", "Weight");
868 pool_foreach (lsit, lcm->locator_set_pool,
871 msg = format (msg, "%-16v", lsit->name);
872 vec_foreach (locit, lsit->locator_indices)
874 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
876 msg = format (msg, "%16d%16d%16d", loc->sw_if_index, loc->priority,
879 msg = format (msg, "%16U%16d%16d", format_gid_address, &loc->address,
880 loc->priority, loc->weight);
882 vlib_cli_output (vm, "%v", msg);
888 VLIB_CLI_COMMAND (lisp_cp_show_locator_sets_command) = {
889 .path = "show lisp locator-set",
890 .short_help = "Shows locator-sets",
891 .function = lisp_cp_show_locator_sets_command_fn,
895 vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
897 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
903 vec_foreach(addr, lcm->map_resolvers)
905 if (!ip_address_cmp (addr, &a->address))
907 clib_warning("map-resolver %U already exists!", format_ip_address,
912 vec_add1(lcm->map_resolvers, a->address);
916 for (i = 0; i < vec_len(lcm->map_resolvers); i++)
918 addr = vec_elt_at_index(lcm->map_resolvers, i);
919 if (!ip_address_cmp (addr, &a->address))
921 vec_delete(lcm->map_resolvers, 1, i);
929 static clib_error_t *
930 lisp_add_del_map_resolver_command_fn (vlib_main_t * vm,
931 unformat_input_t * input,
932 vlib_cli_command_t * cmd)
934 unformat_input_t _line_input, * line_input = &_line_input;
936 ip_address_t ip_addr;
937 clib_error_t * error = 0;
938 vnet_lisp_add_del_map_resolver_args_t _a, * a = &_a;
940 /* Get a line of input. */
941 if (! unformat_user (input, unformat_line_input, line_input))
944 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
946 if (unformat (line_input, "add"))
948 else if (unformat (line_input, "del"))
950 else if (unformat (line_input, "%U", unformat_ip_address, &ip_addr))
954 error = unformat_parse_error(line_input);
959 a->address = ip_addr;
960 vnet_lisp_add_del_map_resolver (a);
966 VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = {
967 .path = "lisp map-resolver",
968 .short_help = "lisp map-resolver add/del <ip_address>",
969 .function = lisp_add_del_map_resolver_command_fn,
972 /* Statistics (not really errors) */
973 #define foreach_lisp_cp_lookup_error \
975 _(MAP_REQUESTS_SENT, "map-request sent")
977 static char * lisp_cp_lookup_error_strings[] = {
978 #define _(sym,string) string,
979 foreach_lisp_cp_lookup_error
985 #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
986 foreach_lisp_cp_lookup_error
988 LISP_CP_LOOKUP_N_ERROR,
989 } lisp_cp_lookup_error_t;
993 LISP_CP_LOOKUP_NEXT_DROP,
994 LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
995 LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
996 LISP_CP_LOOKUP_N_NEXT,
997 } lisp_cp_lookup_next_t;
1001 gid_address_t dst_eid;
1002 ip4_address_t map_resolver_ip;
1003 } lisp_cp_lookup_trace_t;
1006 format_lisp_cp_lookup_trace (u8 * s, va_list * args)
1008 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
1009 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
1010 lisp_cp_lookup_trace_t * t = va_arg (*args, lisp_cp_lookup_trace_t *);
1012 s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
1013 format_ip_address, &t->map_resolver_ip, format_gid_address,
1019 ip_fib_lookup_with_table (lisp_cp_main_t * lcm, u32 fib_index,
1022 if (ip_addr_version (dst) == IP4)
1023 return ip4_fib_lookup_with_table (lcm->im4, fib_index, &ip_addr_v4(dst),
1026 return ip6_fib_lookup_with_table (lcm->im6, fib_index, &ip_addr_v6(dst));
1030 get_local_iface_ip_for_dst (lisp_cp_main_t *lcm, ip_address_t * dst,
1031 ip_address_t * sloc)
1034 ip_adjacency_t * adj;
1035 ip_interface_address_t * ia = 0;
1036 ip_lookup_main_t * lm;
1037 ip4_address_t * l4 = 0;
1038 ip6_address_t * l6 = 0;
1040 lm = ip_addr_version (dst) == IP4 ?
1041 &lcm->im4->lookup_main : &lcm->im6->lookup_main;
1043 adj_index = ip_fib_lookup_with_table (lcm, 0, dst);
1044 adj = ip_get_adjacency (lm, adj_index);
1046 if (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP)
1048 ia = pool_elt_at_index(lm->if_address_pool, adj->if_address_index);
1049 if (ip_addr_version(dst) == IP4)
1051 l4 = ip_interface_address_get_address (lm, ia);
1055 l6 = ip_interface_address_get_address (lm, ia);
1058 else if (adj->lookup_next_index == IP_LOOKUP_NEXT_REWRITE)
1060 /* find sw_if_index in rewrite header */
1061 u32 sw_if_index = adj->rewrite_header.sw_if_index;
1063 /* find suitable address */
1064 if (ip_addr_version(dst) == IP4)
1066 /* find the first ip address */
1067 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
1068 sw_if_index, 1 /* unnumbered */,
1070 l4 = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
1076 /* find the first ip address */
1077 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
1078 sw_if_index, 1 /* unnumbered */,
1080 l6 = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
1087 clib_warning("Can't find local local interface ip for dst %U",
1088 format_ip_address, dst);
1094 ip_addr_v4(sloc).as_u32 = l4->as_u32;
1095 ip_addr_version(sloc) = IP4;
1099 clib_memcpy (&ip_addr_v6(sloc), l6, sizeof(*l6));
1100 ip_addr_version(sloc) = IP6;
1104 clib_warning("Can't find local interface addr for dst %U",
1105 format_ip_address, dst);
1110 static gid_address_t *
1111 build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
1118 ip_interface_address_t * ia = 0;
1119 gid_address_t gid_data, * gid = &gid_data;
1120 gid_address_t * rlocs = 0;
1121 ip_prefix_t * ippref = &gid_address_ippref (gid);
1122 ip_address_t * rloc = &ip_prefix_addr (ippref);
1124 gid_address_type (gid) = GID_ADDR_IP_PREFIX;
1125 for (i = 0; i < vec_len(loc_set->locator_indices); i++)
1127 loc_indexp = vec_elt_at_index(loc_set->locator_indices, i);
1128 loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
1130 ip_addr_version(rloc) = IP4;
1131 /* Add ipv4 locators first TODO sort them */
1132 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
1133 loc->sw_if_index, 1 /* unnumbered */,
1135 l4 = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
1136 ip_addr_v4 (rloc) = l4[0];
1137 vec_add1 (rlocs, gid[0]);
1140 ip_addr_version(rloc) = IP6;
1141 /* Add ipv6 locators */
1142 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
1143 loc->sw_if_index, 1 /* unnumbered */,
1145 l6 = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
1146 ip_addr_v6 (rloc) = l6[0];
1147 vec_add1 (rlocs, gid[0]);
1153 static vlib_buffer_t *
1154 build_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
1155 gid_address_t * seid, gid_address_t * deid,
1156 locator_set_t * loc_set, u8 is_smr_invoked,
1157 u64 *nonce_res, u32 * bi_res)
1161 ip_address_t * mr_ip, sloc;
1162 gid_address_t * rlocs = 0;
1164 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
1166 clib_warning ("Can't allocate buffer for Map-Request!");
1170 b = vlib_get_buffer (vm, bi);
1172 /* leave some space for the encap headers */
1173 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
1176 rlocs = build_itr_rloc_list (lcm, loc_set);
1179 lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, nonce_res);
1181 /* push ecm: udp-ip-lisp */
1182 lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid);
1184 /* get map-resolver ip XXX use first*/
1185 mr_ip = vec_elt_at_index(lcm->map_resolvers, 0);
1187 /* get local iface ip to use in map-request XXX fib 0 for now*/
1188 get_local_iface_ip_for_dst (lcm, mr_ip, &sloc);
1190 /* push outer ip header */
1191 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, &sloc,
1202 send_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
1203 gid_address_t * seid, gid_address_t * deid,
1206 u32 next_index, bi = 0, * to_next, map_index;
1210 locator_set_t * loc_set;
1212 pending_map_request_t * pmr;
1214 /* get locator-set for seid */
1215 map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
1216 if (map_index == ~0)
1218 clib_warning("No local mapping found in eid-table for %U!",
1219 format_gid_address, seid);
1223 map = pool_elt_at_index (lcm->mapping_pool, map_index);
1227 clib_warning("Mapping found for src eid %U is not marked as local!",
1228 format_gid_address, seid);
1231 loc_set = pool_elt_at_index (lcm->locator_set_pool, map->locator_set_index);
1233 /* build the encapsulated map request */
1234 b = build_encapsulated_map_request (vm, lcm, seid, deid, loc_set,
1235 is_smr_invoked, &nonce, &bi);
1240 vnet_buffer(b)->sw_if_index[VLIB_TX] = ~0;
1241 next_index = (ip_prefix_version(&gid_address_ippref(seid)) == IP4) ?
1242 ip4_lookup_node.index : ip6_lookup_node.index;
1244 f = vlib_get_frame_to_node (vm, next_index);
1246 /* Enqueue the packet */
1247 to_next = vlib_frame_vector_args (f);
1250 vlib_put_frame_to_node (vm, next_index, f);
1252 /* add map-request to pending requests table */
1253 pool_get(lcm->pending_map_requests_pool, pmr);
1254 gid_address_copy (&pmr->src, seid);
1255 gid_address_copy (&pmr->dst, deid);
1256 pmr->src_mapping_index = map_index;
1257 hash_set(lcm->pending_map_requests_by_nonce, nonce,
1258 pmr - lcm->pending_map_requests_pool);
1262 get_src_and_dst (void *hdr, ip_address_t * src, ip_address_t *dst)
1264 ip4_header_t * ip4 = hdr;
1267 if ((ip4->ip_version_and_header_length & 0xF0) == 0x40)
1269 ip_addr_v4(src).as_u32 = ip4->src_address.as_u32;
1270 ip_addr_version(src) = IP4;
1271 ip_addr_v4(dst).as_u32 = ip4->dst_address.as_u32;
1272 ip_addr_version(dst) = IP4;
1277 clib_memcpy (&ip_addr_v6(src), &ip6->src_address, sizeof(ip6->src_address));
1278 ip_addr_version(src) = IP6;
1279 clib_memcpy (&ip_addr_v6(dst), &ip6->dst_address, sizeof(ip6->dst_address));
1280 ip_addr_version(dst) = IP6;
1285 lisp_cp_lookup (vlib_main_t * vm, vlib_node_runtime_t * node,
1286 vlib_frame_t * from_frame)
1288 u32 * from, * to_next_drop;
1289 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main();
1290 u32 pkts_mapped = 0;
1291 uword n_left_from, n_left_to_next_drop;
1293 from = vlib_frame_vector_args (from_frame);
1294 n_left_from = from_frame->n_vectors;
1296 while (n_left_from > 0)
1298 vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
1299 to_next_drop, n_left_to_next_drop);
1301 while (n_left_from > 0 && n_left_to_next_drop > 0)
1306 gid_address_t src, dst;
1307 ip_prefix_t * spref, * dpref;
1309 gid_address_type (&src) = GID_ADDR_IP_PREFIX;
1310 spref = &gid_address_ippref(&src);
1311 gid_address_type (&dst) = GID_ADDR_IP_PREFIX;
1312 dpref = &gid_address_ippref(&dst);
1317 to_next_drop[0] = pi0;
1319 n_left_to_next_drop -= 1;
1321 p0 = vlib_get_buffer (vm, pi0);
1322 p0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
1324 /* src/dst eid pair */
1325 ip0 = vlib_buffer_get_current (p0);
1326 get_src_and_dst (ip0, &ip_prefix_addr(spref), &ip_prefix_addr(dpref));
1327 ip_prefix_len(spref) = ip_address_max_len (ip_prefix_version(spref));
1328 ip_prefix_len(dpref) = ip_address_max_len (ip_prefix_version(dpref));
1330 /* send map-request */
1331 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
1335 if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED))
1337 lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, p0,
1339 gid_address_copy (&tr->dst_eid, &dst);
1340 clib_memcpy (&tr->map_resolver_ip,
1341 vec_elt_at_index(lcm->map_resolvers, 0),
1342 sizeof(ip_address_t));
1346 vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP, n_left_to_next_drop);
1348 vlib_node_increment_counter (vm, node->node_index,
1349 LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
1351 return from_frame->n_vectors;
1354 VLIB_REGISTER_NODE (lisp_cp_lookup_node) = {
1355 .function = lisp_cp_lookup,
1356 .name = "lisp-cp-lookup",
1357 .vector_size = sizeof (u32),
1358 .format_trace = format_lisp_cp_lookup_trace,
1359 .type = VLIB_NODE_TYPE_INTERNAL,
1361 .n_errors = LISP_CP_LOOKUP_N_ERROR,
1362 .error_strings = lisp_cp_lookup_error_strings,
1364 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
1367 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
1368 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
1369 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
1373 /* lisp_cp_input statistics */
1374 #define foreach_lisp_cp_input_error \
1376 _(MAP_REPLIES_RECEIVED, "map-replies received")
1378 static char * lisp_cp_input_error_strings[] = {
1379 #define _(sym,string) string,
1380 foreach_lisp_cp_input_error
1386 #define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
1387 foreach_lisp_cp_input_error
1389 LISP_CP_INPUT_N_ERROR,
1390 } lisp_cp_input_error_t;
1394 LISP_CP_INPUT_NEXT_DROP,
1395 LISP_CP_INPUT_N_NEXT,
1396 } lisp_cp_input_next_t;
1400 gid_address_t dst_eid;
1401 ip4_address_t map_resolver_ip;
1402 } lisp_cp_input_trace_t;
1405 format_lisp_cp_input_trace (u8 * s, va_list * args)
1407 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
1408 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
1409 CLIB_UNUSED(lisp_cp_input_trace_t * t) = va_arg (*args, lisp_cp_input_trace_t *);
1411 s = format (s, "LISP-CP-INPUT: TODO");
1415 ip_interface_address_t *
1416 ip_interface_get_first_interface_address (ip_lookup_main_t *lm, u32 sw_if_index,
1419 vnet_main_t *vnm = vnet_get_main ();
1420 vnet_sw_interface_t * swif = vnet_get_sw_interface (vnm, sw_if_index);
1421 if (loop && swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
1422 sw_if_index = swif->unnumbered_sw_if_index;
1424 (vec_len((lm)->if_address_pool_index_by_sw_if_index) > (sw_if_index)) ?
1425 vec_elt((lm)->if_address_pool_index_by_sw_if_index, (sw_if_index)) :
1427 return pool_elt_at_index((lm)->if_address_pool, ia);
1431 ip_interface_get_first_ip_addres (ip_lookup_main_t *lm, u32 sw_if_index,
1434 ip_interface_address_t * ia = ip_interface_get_first_interface_address (
1435 lm, sw_if_index, loop);
1436 return ip_interface_address_get_address (lm, ia);
1440 del_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index,
1443 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, * a = &_a;
1444 fwd_entry_t * fe = 0;
1446 memset(a, 0, sizeof(*a));
1448 feip = hash_get(lcm->fwd_entry_by_mapping_index, dst_map_index);
1452 fe = pool_elt_at_index(lcm->fwd_entry_pool, feip[0]);
1454 /* delete dp fwd entry */
1457 a->dlocator = fe->dst_loc;
1458 a->slocator = fe->src_loc;
1459 a->vni = gid_address_vni(&a->deid);
1460 gid_address_copy(&a->deid, &fe->deid);
1462 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
1464 /* delete entry in fwd table */
1465 hash_unset(lcm->fwd_entry_by_mapping_index, dst_map_index);
1466 pool_put(lcm->fwd_entry_pool, fe);
1470 add_fwd_entry (lisp_cp_main_t* lcm, u32 src_map_index, u32 dst_map_index)
1472 mapping_t * src_map, * dst_map;
1473 locator_set_t * dst_ls, * src_ls;
1474 u32 i, minp = ~0, sw_if_index;
1476 uword * feip = 0, * tidp;
1478 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, * a = &_a;
1480 memset (a, 0, sizeof(*a));
1482 /* remove entry if it already exists */
1483 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
1485 del_fwd_entry (lcm, src_map_index, dst_map_index);
1487 src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index);
1488 dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index);
1490 gid_address_copy (&a->deid, &dst_map->eid);
1491 a->vni = gid_address_vni(&a->deid);
1493 tidp = hash_get(lcm->table_id_by_vni, a->vni);
1496 clib_warning("vni %d not associated to a vrf!", a->vni);
1499 a->table_id = tidp[0];
1501 /* XXX simple forwarding policy: first lowest (value) priority locator */
1502 dst_ls = pool_elt_at_index (lcm->locator_set_pool,
1503 dst_map->locator_set_index);
1504 for (i = 0; i < vec_len (dst_ls->locator_indices); i++)
1506 u32 li = vec_elt (dst_ls->locator_indices, i);
1507 locator_t * l = pool_elt_at_index (lcm->locator_pool, li);
1508 if (l->priority < minp && gid_address_type(&l->address)
1509 == GID_ADDR_IP_PREFIX)
1517 src_ls = pool_elt_at_index(lcm->locator_set_pool,
1518 src_map->locator_set_index);
1519 for (i = 0; i < vec_len(src_ls->locator_indices); i++)
1521 u32 li = vec_elt (src_ls->locator_indices, i);
1522 locator_t * sl = pool_elt_at_index (lcm->locator_pool, li);
1524 if (ip_addr_version(&gid_address_ip(&dl->address)) == IP4)
1527 l4 = ip_interface_get_first_ip_addres (&lcm->im4->lookup_main,
1529 1 /* unnumbered */);
1530 ip_addr_v4(&a->slocator) = *l4;
1531 ip_addr_version(&a->slocator) = IP4;
1536 l6 = ip_interface_get_first_ip_addres (&lcm->im6->lookup_main,
1538 1 /* unnumbered */);
1539 ip_addr_v6(&a->slocator) = *l6;
1540 ip_addr_version(&a->slocator) = IP6;
1545 /* insert data plane forwarding entry */
1548 a->dlocator = gid_address_ip(&dl->address);
1552 a->action = dst_map->action;
1556 u8 ipver = ip_prefix_version(&gid_address_ippref(&a->deid));
1557 a->decap_next_index = (ipver == IP4) ?
1558 LISP_GPE_INPUT_NEXT_IP4_INPUT : LISP_GPE_INPUT_NEXT_IP6_INPUT;
1560 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
1562 /* add tunnel to fwd entry table XXX check return value from DP insertion */
1563 pool_get (lcm->fwd_entry_pool, fe);
1564 fe->dst_loc = a->dlocator;
1565 fe->src_loc = a->slocator;
1566 gid_address_copy (&fe->deid, &a->deid);
1567 hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
1568 fe - lcm->fwd_entry_pool);
1571 /* return 0 if the two locator sets are identical 1 otherwise */
1573 compare_locators (lisp_cp_main_t *lcm, u32 * old_ls_indexes,
1574 locator_t * new_locators)
1577 locator_t * old_loc, * new_loc;
1579 if (vec_len (old_ls_indexes) != vec_len(new_locators))
1582 for (i = 0; i < vec_len(new_locators); i++)
1584 old_li = vec_elt(old_ls_indexes, i);
1585 old_loc = pool_elt_at_index(lcm->locator_pool, old_li);
1587 new_loc = vec_elt_at_index(new_locators, i);
1589 if (locator_cmp (old_loc, new_loc))
1596 process_map_reply (lisp_cp_main_t * lcm, vlib_buffer_t * b)
1599 u32 len = 0, i, ls_index = 0;
1601 vnet_lisp_add_del_locator_set_args_t _ls_arg, * ls_arg = &_ls_arg;
1602 vnet_lisp_add_del_mapping_args_t _m_args, * m_args = &_m_args;
1603 pending_map_request_t * pmr;
1605 map_reply_hdr_t * mrep_hdr;
1607 u32 dst_map_index, mi;
1610 mrep_hdr = vlib_buffer_get_current (b);
1612 /* Check pending requests table and nonce */
1613 nonce = MREP_NONCE(mrep_hdr);
1614 pmr_index = hash_get(lcm->pending_map_requests_by_nonce, nonce);
1617 clib_warning("No pending map-request entry with nonce %lu!", nonce);
1620 pmr = pool_elt_at_index(lcm->pending_map_requests_pool, pmr_index[0]);
1622 vlib_buffer_pull (b, sizeof(*mrep_hdr));
1624 for (i = 0; i < MREP_REC_COUNT(mrep_hdr); i++)
1626 memset (ls_arg, 0, sizeof(*ls_arg));
1627 memset (m_args, 0, sizeof(*m_args));
1629 h = vlib_buffer_get_current (b);
1630 m_args->ttl = clib_net_to_host_u32 (MAP_REC_TTL(h));
1631 m_args->action = MAP_REC_ACTION(h);
1632 m_args->authoritative = MAP_REC_AUTH(h);
1634 len = lisp_msg_parse_mapping_record (b, &m_args->deid, &ls_arg->locators,
1638 clib_warning ("Failed to parse mapping record!");
1639 vec_foreach (loc, ls_arg->locators)
1643 vec_free(ls_arg->locators);
1647 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &m_args->deid);
1649 /* if mapping already exists, decide if locators (and forwarding) should
1650 * be updated and be done */
1653 mapping_t * old_map;
1654 locator_set_t * old_ls;
1655 old_map = pool_elt_at_index(lcm->mapping_pool, mi);
1657 /* update mapping attributes */
1658 old_map->action = m_args->action;
1659 old_map->authoritative = m_args->authoritative;
1660 old_map->ttl = m_args->ttl;
1662 old_ls = pool_elt_at_index(lcm->locator_set_pool,
1663 old_map->locator_set_index);
1664 /* if the two locators are not equal, update them and forwarding
1665 * otherwise there's nothing to be done */
1666 if (compare_locators (lcm, old_ls->locator_indices, ls_arg->locators))
1668 /* set locator-set index to overwrite */
1670 ls_arg->index = old_map->locator_set_index;
1671 vnet_lisp_add_del_locator_set (ls_arg, 0);
1672 add_fwd_entry (lcm, pmr->src_mapping_index, mi);
1678 /* add locator-set */
1681 vnet_lisp_add_del_locator_set (ls_arg, &ls_index);
1685 m_args->locator_set_index = ls_index;
1686 vnet_lisp_add_del_mapping (m_args, &dst_map_index);
1688 /* add forwarding tunnel */
1689 add_fwd_entry (lcm, pmr->src_mapping_index, dst_map_index);
1691 vec_free(ls_arg->locators);
1694 /* remove pending map request entry */
1695 hash_unset(lcm->pending_map_requests_by_nonce, nonce);
1696 pool_put(lcm->pending_map_requests_pool, pmr);
1700 process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm, vlib_buffer_t * b)
1702 map_request_hdr_t * mreq_hdr;
1703 gid_address_t src, dst;
1706 gid_address_t * itr_rlocs = 0, * rloc;
1708 mreq_hdr = vlib_buffer_get_current (b);
1709 vlib_buffer_pull (b, sizeof(*mreq_hdr));
1711 // nonce = MREQ_NONCE(mreq_hdr);
1713 if (!MREQ_SMR(mreq_hdr)) {
1714 clib_warning("Only SMR Map-Requests supported for now!");
1719 len = lisp_msg_parse_addr (b, &src);
1723 /* for now we don't do anything with the itr's rlocs */
1724 len = lisp_msg_parse_itr_rlocs (b, &itr_rlocs, MREQ_ITR_RLOC_COUNT(mreq_hdr) + 1);
1728 /* TODO: RLOCs are currently unused, so free them for now */
1729 vec_foreach (rloc, itr_rlocs)
1731 gid_address_free (rloc);
1734 /* parse eid records and send SMR-invoked map-requests */
1735 for (i = 0; i < MREQ_REC_COUNT(mreq_hdr); i++)
1737 memset(&dst, 0, sizeof(dst));
1738 len = lisp_msg_parse_eid_rec (b, &dst);
1741 clib_warning("Can't parse map-request EID-record");
1744 /* send SMR-invoked map-requests */
1745 send_encapsulated_map_request (vm, lcm, &dst, &src, /* invoked */ 1);
1750 lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
1751 vlib_frame_t * from_frame)
1753 u32 n_left_from, * from, * to_next_drop;
1754 lisp_msg_type_e type;
1755 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1757 from = vlib_frame_vector_args (from_frame);
1758 n_left_from = from_frame->n_vectors;
1761 while (n_left_from > 0)
1763 u32 n_left_to_next_drop;
1765 vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
1766 to_next_drop, n_left_to_next_drop);
1767 while (n_left_from > 0 && n_left_to_next_drop > 0)
1775 to_next_drop[0] = bi0;
1777 n_left_to_next_drop -= 1;
1779 b0 = vlib_get_buffer (vm, bi0);
1781 type = lisp_msg_type(vlib_buffer_get_current (b0));
1784 case LISP_MAP_REPLY:
1785 process_map_reply (lcm, b0);
1787 case LISP_MAP_REQUEST:
1788 process_map_request(vm, lcm, b0);
1791 clib_warning("Unsupported LISP message type %d", type);
1795 b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP];
1797 if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
1803 vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP, n_left_to_next_drop);
1805 return from_frame->n_vectors;
1808 VLIB_REGISTER_NODE (lisp_cp_input_node) = {
1809 .function = lisp_cp_input,
1810 .name = "lisp-cp-input",
1811 .vector_size = sizeof (u32),
1812 .format_trace = format_lisp_cp_input_trace,
1813 .type = VLIB_NODE_TYPE_INTERNAL,
1815 .n_errors = LISP_CP_INPUT_N_ERROR,
1816 .error_strings = lisp_cp_input_error_strings,
1818 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
1821 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
1826 lisp_cp_init (vlib_main_t *vm)
1828 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1829 clib_error_t * error = 0;
1831 if ((error = vlib_call_init_function (vm, lisp_gpe_init)))
1834 lcm->im4 = &ip4_main;
1835 lcm->im6 = &ip6_main;
1836 lcm->vlib_main = vm;
1837 lcm->vnet_main = vnet_get_main();
1839 gid_dictionary_init (&lcm->mapping_index_by_gid);
1841 /* default vrf mapped to vni 0 */
1842 hash_set(lcm->table_id_by_vni, 0, 0);
1844 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp,
1845 lisp_cp_input_node.index, 1 /* is_ip4 */);
1846 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6,
1847 lisp_cp_input_node.index, 0 /* is_ip4 */);
1852 VLIB_INIT_FUNCTION(lisp_cp_init);