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 vnet_lisp_get_map_request_mode (void)
35 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
36 return lcm->map_request_mode;
40 queue_map_request (gid_address_t * seid, gid_address_t * deid,
41 u8 smr_invoked, u8 is_resend);
43 ip_interface_address_t *
44 ip_interface_get_first_interface_address (ip_lookup_main_t * lm,
45 u32 sw_if_index, u8 loop)
47 vnet_main_t *vnm = vnet_get_main ();
48 vnet_sw_interface_t *swif = vnet_get_sw_interface (vnm, sw_if_index);
49 if (loop && swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
50 sw_if_index = swif->unnumbered_sw_if_index;
52 (vec_len ((lm)->if_address_pool_index_by_sw_if_index) > (sw_if_index)) ?
53 vec_elt ((lm)->if_address_pool_index_by_sw_if_index, (sw_if_index)) :
55 return pool_elt_at_index ((lm)->if_address_pool, ia);
59 ip_interface_get_first_address (ip_lookup_main_t * lm, u32 sw_if_index,
62 ip_interface_address_t *ia;
64 ia = ip_interface_get_first_interface_address (lm, sw_if_index, 1);
67 return ip_interface_address_get_address (lm, ia);
71 ip_interface_get_first_ip_address (lisp_cp_main_t * lcm, u32 sw_if_index,
72 u8 version, ip_address_t * result)
77 lm = (version == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
78 addr = ip_interface_get_first_address (lm, sw_if_index, version);
82 ip_address_set (result, addr, version);
87 * convert from a LISP address to a FIB prefix
90 ip_address_to_fib_prefix (const ip_address_t * addr, fib_prefix_t * prefix)
92 if (addr->version == IP4)
95 prefix->fp_proto = FIB_PROTOCOL_IP4;
96 memset (&prefix->fp_addr.pad, 0, sizeof (prefix->fp_addr.pad));
97 memcpy (&prefix->fp_addr.ip4, &addr->ip, sizeof (prefix->fp_addr.ip4));
101 prefix->fp_len = 128;
102 prefix->fp_proto = FIB_PROTOCOL_IP6;
103 memcpy (&prefix->fp_addr.ip6, &addr->ip, sizeof (prefix->fp_addr.ip6));
108 * convert from a LISP to a FIB prefix
111 ip_prefix_to_fib_prefix (const ip_prefix_t * ip_prefix,
112 fib_prefix_t * fib_prefix)
114 ip_address_to_fib_prefix (&ip_prefix->addr, fib_prefix);
115 fib_prefix->fp_len = ip_prefix->len;
119 * Find the sw_if_index of the interface that would be used to egress towards
123 ip_fib_get_egress_iface_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst)
125 fib_node_index_t fei;
128 ip_address_to_fib_prefix (dst, &prefix);
130 fei = fib_table_lookup (0, &prefix);
132 return (fib_entry_get_resolving_interface (fei));
136 * Find first IP of the interface that would be used to egress towards dst.
137 * Returns 1 if the address is found 0 otherwise.
140 ip_fib_get_first_egress_ip_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst,
141 ip_address_t * result)
144 ip_lookup_main_t *lm;
148 ASSERT (result != 0);
150 ipver = ip_addr_version (dst);
152 lm = (ipver == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main;
153 si = ip_fib_get_egress_iface_for_dst (lcm, dst);
158 /* find the first ip address */
159 addr = ip_interface_get_first_address (lm, si, ipver);
163 ip_address_set (result, addr, ipver);
168 dp_add_del_iface (lisp_cp_main_t * lcm, u32 vni, u8 is_l2, u8 is_add)
170 uword *dp_table, *intf;
171 vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai;
175 dp_table = hash_get (lcm->table_id_by_vni, vni);
179 clib_warning ("vni %d not associated to a vrf!", vni);
180 return VNET_API_ERROR_INVALID_VALUE;
185 dp_table = hash_get (lcm->bd_id_by_vni, vni);
188 clib_warning ("vni %d not associated to a bridge domain!", vni);
189 return VNET_API_ERROR_INVALID_VALUE;
193 intf = hash_get (is_l2 ? lcm->l2_dp_intf_by_vni : lcm->dp_intf_by_vni, vni);
195 /* enable/disable data-plane interface */
198 /* create interface */
204 ai->dp_table = dp_table[0];
206 vnet_lisp_gpe_add_del_iface (ai, 0);
208 /* keep track of vnis for which interfaces have been created */
209 hash_set (lcm->dp_intf_by_vni, vni, 1);
216 clib_warning ("interface for vni %d doesn't exist!", vni);
217 return VNET_API_ERROR_INVALID_VALUE;
222 ai->dp_table = dp_table[0];
223 vnet_lisp_gpe_add_del_iface (ai, 0);
224 hash_unset (lcm->dp_intf_by_vni, vni);
231 dp_del_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index)
233 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a;
236 memset (a, 0, sizeof (*a));
238 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
242 fe = pool_elt_at_index (lcm->fwd_entry_pool, feip[0]);
244 /* delete dp fwd entry */
247 a->locator_pairs = fe->locator_pairs;
248 a->vni = gid_address_vni (&fe->reid);
249 gid_address_copy (&a->rmt_eid, &fe->reid);
251 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
253 /* delete entry in fwd table */
254 hash_unset (lcm->fwd_entry_by_mapping_index, dst_map_index);
255 vec_free (fe->locator_pairs);
256 pool_put (lcm->fwd_entry_pool, fe);
260 * Finds first remote locator with best (lowest) priority that has a local
261 * peer locator with an underlying route to it.
265 get_locator_pairs (lisp_cp_main_t * lcm, mapping_t * lcl_map,
266 mapping_t * rmt_map, locator_pair_t ** locator_pairs)
268 u32 i, limitp = 0, li, found = 0, esi;
269 locator_set_t *rmt_ls, *lcl_ls;
270 ip_address_t _lcl_addr, *lcl_addr = &_lcl_addr;
271 locator_t *lp, *rmt = 0;
276 pool_elt_at_index (lcm->locator_set_pool, rmt_map->locator_set_index);
278 pool_elt_at_index (lcm->locator_set_pool, lcl_map->locator_set_index);
280 if (!rmt_ls || vec_len (rmt_ls->locator_indices) == 0)
287 /* find unvisited remote locator with best priority */
288 for (i = 0; i < vec_len (rmt_ls->locator_indices); i++)
290 if (0 != hash_get (checked, i))
293 li = vec_elt (rmt_ls->locator_indices, i);
294 lp = pool_elt_at_index (lcm->locator_pool, li);
296 /* we don't support non-IP locators for now */
297 if (gid_address_type (&lp->address) != GID_ADDR_IP_PREFIX)
300 if ((found && lp->priority == limitp)
301 || (!found && lp->priority >= limitp))
305 /* don't search for locators with lower priority and don't
306 * check this locator again*/
307 limitp = lp->priority;
308 hash_set (checked, i, 1);
312 /* check if a local locator with a route to remote locator exists */
315 /* find egress sw_if_index for rmt locator */
317 ip_fib_get_egress_iface_for_dst (lcm,
318 &gid_address_ip (&rmt->address));
319 if ((u32) ~ 0 == esi)
322 for (i = 0; i < vec_len (lcl_ls->locator_indices); i++)
324 li = vec_elt (lcl_ls->locator_indices, i);
325 locator_t *sl = pool_elt_at_index (lcm->locator_pool, li);
327 /* found local locator with the needed sw_if_index */
328 if (sl->sw_if_index == esi)
330 /* and it has an address */
331 if (0 == ip_interface_get_first_ip_address (lcm,
333 gid_address_ip_version
338 memset (&pair, 0, sizeof (pair));
339 ip_address_copy (&pair.rmt_loc,
340 &gid_address_ip (&rmt->address));
341 ip_address_copy (&pair.lcl_loc, lcl_addr);
342 pair.weight = rmt->weight;
343 vec_add1 (locator_pairs[0], pair);
357 gid_address_sd_to_flat (gid_address_t * dst, gid_address_t * src,
360 ASSERT (GID_ADDR_SRC_DST == gid_address_type (src));
364 switch (fid_addr_type (fid))
366 case FID_ADDR_IP_PREF:
367 gid_address_type (dst) = GID_ADDR_IP_PREFIX;
368 gid_address_ippref (dst) = fid_addr_ippref (fid);
371 gid_address_type (dst) = GID_ADDR_MAC;
372 mac_copy (gid_address_mac (dst), fid_addr_mac (fid));
375 clib_warning ("Unsupported fid type %d!", fid_addr_type (fid));
381 dp_add_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index)
383 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a;
384 mapping_t *src_map, *dst_map;
386 uword *feip = 0, *dpid;
390 memset (a, 0, sizeof (*a));
392 /* remove entry if it already exists */
393 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
395 dp_del_fwd_entry (lcm, src_map_index, dst_map_index);
398 src_map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
400 src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index);
401 dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index);
403 /* insert data plane forwarding entry */
406 if (GID_ADDR_SRC_DST == gid_address_type (&dst_map->eid))
408 gid_address_sd_to_flat (&a->rmt_eid, &dst_map->eid,
409 &gid_address_sd_dst (&dst_map->eid));
410 gid_address_sd_to_flat (&a->lcl_eid, &dst_map->eid,
411 &gid_address_sd_src (&dst_map->eid));
414 gid_address_copy (&a->rmt_eid, &dst_map->eid);
416 a->vni = gid_address_vni (&a->rmt_eid);
418 /* get vrf or bd_index associated to vni */
419 type = gid_address_type (&a->rmt_eid);
420 if (GID_ADDR_IP_PREFIX == type)
422 dpid = hash_get (lcm->table_id_by_vni, a->vni);
425 clib_warning ("vni %d not associated to a vrf!", a->vni);
428 a->table_id = dpid[0];
430 else if (GID_ADDR_MAC == type)
432 dpid = hash_get (lcm->bd_id_by_vni, a->vni);
435 clib_warning ("vni %d not associated to a bridge domain !", a->vni);
441 /* find best locator pair that 1) verifies LISP policy 2) are connected */
442 if (0 == get_locator_pairs (lcm, src_map, dst_map, &a->locator_pairs))
446 a->action = dst_map->action;
450 u8 ipver = ip_prefix_version (&gid_address_ippref (&a->rmt_eid));
451 a->decap_next_index = (ipver == IP4) ?
452 LISP_GPE_INPUT_NEXT_IP4_INPUT : LISP_GPE_INPUT_NEXT_IP6_INPUT;
454 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
456 /* add tunnel to fwd entry table XXX check return value from DP insertion */
457 pool_get (lcm->fwd_entry_pool, fe);
458 fe->locator_pairs = a->locator_pairs;
459 gid_address_copy (&fe->reid, &a->rmt_eid);
460 hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
461 fe - lcm->fwd_entry_pool);
465 * Add/remove mapping to/from map-cache. Overwriting not allowed.
468 vnet_lisp_map_cache_add_del (vnet_lisp_add_del_mapping_args_t * a,
469 u32 * map_index_result)
471 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
472 u32 mi, *map_indexp, map_index, i;
473 mapping_t *m, *old_map;
476 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->eid);
477 old_map = mi != ~0 ? pool_elt_at_index (lcm->mapping_pool, mi) : 0;
480 /* TODO check if overwriting and take appropriate actions */
481 if (mi != GID_LOOKUP_MISS && !gid_address_cmp (&old_map->eid, &a->eid))
483 clib_warning ("eid %U found in the eid-table", format_gid_address,
485 return VNET_API_ERROR_VALUE_EXIST;
488 pool_get (lcm->mapping_pool, m);
489 gid_address_copy (&m->eid, &a->eid);
490 m->locator_set_index = a->locator_set_index;
492 m->action = a->action;
494 m->is_static = a->is_static;
496 map_index = m - lcm->mapping_pool;
497 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, map_index,
500 if (pool_is_free_index (lcm->locator_set_pool, a->locator_set_index))
502 clib_warning ("Locator set with index %d doesn't exist",
503 a->locator_set_index);
504 return VNET_API_ERROR_INVALID_VALUE;
507 /* add eid to list of eids supported by locator-set */
508 vec_validate (lcm->locator_set_to_eids, a->locator_set_index);
509 eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids,
510 a->locator_set_index);
511 vec_add1 (eid_indexes[0], map_index);
516 vec_add1 (lcm->local_mappings_indexes, map_index);
518 map_index_result[0] = map_index;
522 if (mi == GID_LOOKUP_MISS)
524 clib_warning ("eid %U not found in the eid-table",
525 format_gid_address, &a->eid);
526 return VNET_API_ERROR_INVALID_VALUE;
529 /* clear locator-set to eids binding */
530 eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids,
531 a->locator_set_index);
532 for (i = 0; i < vec_len (eid_indexes[0]); i++)
534 map_indexp = vec_elt_at_index (eid_indexes[0], i);
535 if (map_indexp[0] == mi)
538 vec_del1 (eid_indexes[0], i);
540 /* remove local mark if needed */
541 m = pool_elt_at_index (lcm->mapping_pool, mi);
545 for (k = 0; k < vec_len (lcm->local_mappings_indexes); k++)
547 lm_indexp = vec_elt_at_index (lcm->local_mappings_indexes, k);
548 if (lm_indexp[0] == mi)
551 vec_del1 (lcm->local_mappings_indexes, k);
554 /* remove mapping from dictionary */
555 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, 0, 0);
556 gid_address_free (&m->eid);
557 pool_put_index (lcm->mapping_pool, mi);
564 * Add/update/delete mapping to/in/from map-cache.
567 vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a,
568 u32 * map_index_result)
574 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
576 if (vnet_lisp_enable_disable_status () == 0)
578 clib_warning ("LISP is disabled!");
579 return VNET_API_ERROR_LISP_DISABLED;
582 vni = gid_address_vni (&a->eid);
583 type = gid_address_type (&a->eid);
584 if (GID_ADDR_IP_PREFIX == type)
585 dp_table = hash_get (lcm->table_id_by_vni, vni);
586 else if (GID_ADDR_MAC == type)
587 dp_table = hash_get (lcm->bd_id_by_vni, vni);
591 clib_warning ("vni %d not associated to a %s!", vni,
592 GID_ADDR_IP_PREFIX == type ? "vrf" : "bd");
593 return VNET_API_ERROR_INVALID_VALUE;
596 /* store/remove mapping from map-cache */
597 return vnet_lisp_map_cache_add_del (a, map_index_result);
600 static clib_error_t *
601 lisp_add_del_local_eid_command_fn (vlib_main_t * vm, unformat_input_t * input,
602 vlib_cli_command_t * cmd)
604 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
605 unformat_input_t _line_input, *line_input = &_line_input;
608 gid_address_t *eids = 0;
609 clib_error_t *error = 0;
610 u8 *locator_set_name = 0;
611 u32 locator_set_index = 0, map_index = 0;
613 vnet_lisp_add_del_mapping_args_t _a, *a = &_a;
617 memset (&eid, 0, sizeof (eid));
618 memset (a, 0, sizeof (*a));
620 /* Get a line of input. */
621 if (!unformat_user (input, unformat_line_input, line_input))
624 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
626 if (unformat (line_input, "add"))
628 else if (unformat (line_input, "del"))
630 else if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
632 else if (unformat (line_input, "vni %d", &vni))
633 gid_address_vni (&eid) = vni;
634 else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name))
636 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
639 error = clib_error_return (0, "locator-set %s doesn't exist",
643 locator_set_index = p[0];
647 error = unformat_parse_error (line_input);
651 /* XXX treat batch configuration */
653 if (GID_ADDR_SRC_DST == gid_address_type (&eid))
656 clib_error_return (0, "src/dst is not supported for local EIDs!");
660 gid_address_copy (&a->eid, &eid);
662 a->locator_set_index = locator_set_index;
665 rv = vnet_lisp_add_del_local_mapping (a, &map_index);
668 error = clib_error_return (0, "failed to %s local mapping!",
669 is_add ? "add" : "delete");
673 if (locator_set_name)
674 vec_free (locator_set_name);
675 gid_address_free (&a->eid);
680 VLIB_CLI_COMMAND (lisp_add_del_local_eid_command) = {
681 .path = "lisp eid-table",
682 .short_help = "lisp eid-table add/del [vni <vni>] eid <eid> "
683 "locator-set <locator-set>",
684 .function = lisp_add_del_local_eid_command_fn,
689 vnet_lisp_eid_table_map (u32 vni, u32 dp_id, u8 is_l2, u8 is_add)
691 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
692 uword *dp_idp, *vnip, **dp_table_by_vni, **vni_by_dp_table;
694 if (vnet_lisp_enable_disable_status () == 0)
696 clib_warning ("LISP is disabled!");
700 dp_table_by_vni = is_l2 ? &lcm->bd_id_by_vni : &lcm->table_id_by_vni;
701 vni_by_dp_table = is_l2 ? &lcm->vni_by_bd_id : &lcm->vni_by_table_id;
703 if (!is_l2 && (vni == 0 || dp_id == 0))
705 clib_warning ("can't add/del default vni-vrf mapping!");
709 dp_idp = hash_get (dp_table_by_vni[0], vni);
710 vnip = hash_get (vni_by_dp_table[0], dp_id);
716 clib_warning ("vni %d or vrf %d already used in vrf/vni "
717 "mapping!", vni, dp_id);
720 hash_set (dp_table_by_vni[0], vni, dp_id);
721 hash_set (vni_by_dp_table[0], dp_id, vni);
723 /* create dp iface */
724 dp_add_del_iface (lcm, vni, is_l2, 1);
728 if (!dp_idp || !vnip)
730 clib_warning ("vni %d or vrf %d not used in any vrf/vni! "
731 "mapping!", vni, dp_id);
734 hash_unset (dp_table_by_vni[0], vni);
735 hash_unset (vni_by_dp_table[0], dp_id);
737 /* remove dp iface */
738 dp_add_del_iface (lcm, vni, is_l2, 0);
744 static clib_error_t *
745 lisp_eid_table_map_command_fn (vlib_main_t * vm,
746 unformat_input_t * input,
747 vlib_cli_command_t * cmd)
749 u8 is_add = 1, is_l2 = 0;
750 u32 vni = 0, dp_id = 0;
751 unformat_input_t _line_input, *line_input = &_line_input;
753 /* Get a line of input. */
754 if (!unformat_user (input, unformat_line_input, line_input))
757 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
759 if (unformat (line_input, "del"))
761 else if (unformat (line_input, "vni %d", &vni))
763 else if (unformat (line_input, "vrf %d", &dp_id))
765 else if (unformat (line_input, "bd %d", &dp_id))
769 return unformat_parse_error (line_input);
772 vnet_lisp_eid_table_map (vni, dp_id, is_l2, is_add);
777 VLIB_CLI_COMMAND (lisp_eid_table_map_command) = {
778 .path = "lisp eid-table map",
779 .short_help = "lisp eid-table map [del] vni <vni> vrf <vrf> | bd <bdi>",
780 .function = lisp_eid_table_map_command_fn,
784 /* return 0 if the two locator sets are identical 1 otherwise */
786 compare_locators (lisp_cp_main_t * lcm, u32 * old_ls_indexes,
787 locator_t * new_locators)
790 locator_t *old_loc, *new_loc;
792 if (vec_len (old_ls_indexes) != vec_len (new_locators))
795 for (i = 0; i < vec_len (new_locators); i++)
797 old_li = vec_elt (old_ls_indexes, i);
798 old_loc = pool_elt_at_index (lcm->locator_pool, old_li);
800 new_loc = vec_elt_at_index (new_locators, i);
802 if (locator_cmp (old_loc, new_loc))
809 * Adds/removes/updates mapping. Does not program forwarding.
811 * @param eid end-host identifier
812 * @param rlocs vector of remote locators
813 * @param action action for negative map-reply
814 * @param is_add add mapping if non-zero, delete otherwise
815 * @param res_map_index the map-index that was created/updated/removed. It is
816 * set to ~0 if no action is taken.
817 * @param is_static used for distinguishing between statically learned
818 remote mappings and mappings obtained from MR
819 * @return return code
822 vnet_lisp_add_del_mapping (gid_address_t * eid, locator_t * rlocs, u8 action,
823 u8 authoritative, u32 ttl, u8 is_add, u8 is_static,
826 vnet_lisp_add_del_mapping_args_t _m_args, *m_args = &_m_args;
827 vnet_lisp_add_del_locator_set_args_t _ls_args, *ls_args = &_ls_args;
828 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
829 u32 mi, ls_index = 0, dst_map_index;
832 if (vnet_lisp_enable_disable_status () == 0)
834 clib_warning ("LISP is disabled!");
835 return VNET_API_ERROR_LISP_DISABLED;
839 res_map_index[0] = ~0;
841 memset (m_args, 0, sizeof (m_args[0]));
842 memset (ls_args, 0, sizeof (ls_args[0]));
844 ls_args->locators = rlocs;
846 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, eid);
847 old_map = ((u32) ~ 0 != mi) ? pool_elt_at_index (lcm->mapping_pool, mi) : 0;
851 /* overwrite: if mapping already exists, decide if locators should be
852 * updated and be done */
853 if (old_map && gid_address_cmp (&old_map->eid, eid) == 0)
855 if (!is_static && (old_map->is_static || old_map->local))
857 /* do not overwrite local or static remote mappings */
858 clib_warning ("mapping %U rejected due to collision with local "
859 "or static remote mapping!", format_gid_address,
864 locator_set_t *old_ls;
866 /* update mapping attributes */
867 old_map->action = action;
868 old_map->authoritative = authoritative;
871 old_ls = pool_elt_at_index (lcm->locator_set_pool,
872 old_map->locator_set_index);
873 if (compare_locators (lcm, old_ls->locator_indices,
876 /* set locator-set index to overwrite */
878 ls_args->index = old_map->locator_set_index;
879 vnet_lisp_add_del_locator_set (ls_args, 0);
881 res_map_index[0] = mi;
890 vnet_lisp_add_del_locator_set (ls_args, &ls_index);
893 gid_address_copy (&m_args->eid, eid);
895 m_args->action = action;
896 m_args->locator_set_index = ls_index;
897 m_args->is_static = is_static;
898 vnet_lisp_map_cache_add_del (m_args, &dst_map_index);
901 res_map_index[0] = dst_map_index;
906 if (old_map == 0 || gid_address_cmp (&old_map->eid, eid) != 0)
908 clib_warning ("cannot delete mapping for eid %U",
909 format_gid_address, eid);
914 gid_address_copy (&m_args->eid, eid);
915 m_args->locator_set_index = old_map->locator_set_index;
917 /* delete mapping associated from map-cache */
918 vnet_lisp_map_cache_add_del (m_args, 0);
921 ls_args->index = old_map->locator_set_index;
922 /* delete locator set */
923 vnet_lisp_add_del_locator_set (ls_args, 0);
925 /* return old mapping index */
927 res_map_index[0] = mi;
935 vnet_lisp_clear_all_remote_adjacencies (void)
938 u32 mi, *map_indices = 0, *map_indexp;
939 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
940 vnet_lisp_add_del_mapping_args_t _dm_args, *dm_args = &_dm_args;
941 vnet_lisp_add_del_locator_set_args_t _ls, *ls = &_ls;
944 pool_foreach_index (mi, lcm->mapping_pool,
946 vec_add1 (map_indices, mi);
950 vec_foreach (map_indexp, map_indices)
952 mapping_t *map = pool_elt_at_index (lcm->mapping_pool, map_indexp[0]);
955 dp_del_fwd_entry (lcm, 0, map_indexp[0]);
958 gid_address_copy (&dm_args->eid, &map->eid);
959 dm_args->locator_set_index = map->locator_set_index;
961 /* delete mapping associated to fwd entry */
962 vnet_lisp_map_cache_add_del (dm_args, 0);
966 ls->index = map->locator_set_index;
967 /* delete locator set */
968 rv = vnet_lisp_add_del_locator_set (ls, 0);
976 vec_free (map_indices);
981 * Adds adjacency or removes forwarding entry associated to remote mapping.
982 * Note that adjacencies are not stored, they only result in forwarding entries
986 lisp_add_del_adjacency (lisp_cp_main_t * lcm, gid_address_t * local_eid,
987 gid_address_t * remote_eid, u8 is_add)
989 u32 local_mi, remote_mi = ~0;
991 if (vnet_lisp_enable_disable_status () == 0)
993 clib_warning ("LISP is disabled!");
994 return VNET_API_ERROR_LISP_DISABLED;
997 remote_mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, remote_eid);
998 if (GID_LOOKUP_MISS == remote_mi)
1000 clib_warning ("Remote eid %U not found. Cannot add adjacency!",
1001 format_gid_address, remote_eid);
1008 /* TODO 1) check if src/dst 2) once we have src/dst working, use it in
1011 /* check if source eid has an associated mapping. If pitr mode is on,
1012 * just use the pitr's mapping */
1013 local_mi = lcm->lisp_pitr ? lcm->pitr_map_index :
1014 gid_dictionary_lookup (&lcm->mapping_index_by_gid, local_eid);
1017 if (GID_LOOKUP_MISS == local_mi)
1019 clib_warning ("Local eid %U not found. Cannot add adjacency!",
1020 format_gid_address, local_eid);
1025 /* update forwarding */
1026 dp_add_fwd_entry (lcm, local_mi, remote_mi);
1029 dp_del_fwd_entry (lcm, 0, remote_mi);
1035 vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a)
1037 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1038 return lisp_add_del_adjacency (lcm, &a->leid, &a->reid, a->is_add);
1042 * Handler for add/del remote mapping CLI.
1044 * @param vm vlib context
1045 * @param input input from user
1047 * @return pointer to clib error structure
1049 static clib_error_t *
1050 lisp_add_del_remote_mapping_command_fn (vlib_main_t * vm,
1051 unformat_input_t * input,
1052 vlib_cli_command_t * cmd)
1054 clib_error_t *error = 0;
1055 unformat_input_t _line_input, *line_input = &_line_input;
1056 u8 is_add = 1, del_all = 0;
1057 locator_t rloc, *rlocs = 0, *curr_rloc = 0;
1060 u32 vni, action = ~0, p, w;
1063 /* Get a line of input. */
1064 if (!unformat_user (input, unformat_line_input, line_input))
1067 memset (&eid, 0, sizeof (eid));
1068 memset (&rloc, 0, sizeof (rloc));
1070 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1072 if (unformat (line_input, "del-all"))
1074 else if (unformat (line_input, "del"))
1076 else if (unformat (line_input, "add"))
1078 else if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
1080 else if (unformat (line_input, "vni %u", &vni))
1082 gid_address_vni (&eid) = vni;
1084 else if (unformat (line_input, "p %d w %d", &p, &w))
1089 ("No RLOC configured for setting priority/weight!");
1092 curr_rloc->priority = p;
1093 curr_rloc->weight = w;
1095 else if (unformat (line_input, "rloc %U", unformat_ip_address,
1096 &gid_address_ip (&rloc.address)))
1098 /* since rloc is stored in ip prefix we need to set prefix length */
1099 ip_prefix_t *pref = &gid_address_ippref (&rloc.address);
1101 u8 version = gid_address_ip_version (&rloc.address);
1102 ip_prefix_len (pref) = ip_address_max_len (version);
1104 vec_add1 (rlocs, rloc);
1105 curr_rloc = &rlocs[vec_len (rlocs) - 1];
1107 else if (unformat (line_input, "action %U",
1108 unformat_negative_mapping_action, &action))
1112 clib_warning ("parse error");
1119 clib_warning ("missing eid!");
1125 if (is_add && (~0 == action) && 0 == vec_len (rlocs))
1127 clib_warning ("no action set for negative map-reply!");
1133 vnet_lisp_clear_all_remote_adjacencies ();
1137 /* TODO build src/dst with seid */
1139 /* if it's a delete, clean forwarding */
1142 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1143 rv = lisp_add_del_adjacency (lcm, 0, &eid, /* is_add */ 0);
1150 /* add as static remote mapping, i.e., not authoritative and infinite
1152 rv = vnet_lisp_add_del_mapping (&eid, rlocs, action, 0, ~0, is_add,
1153 1 /* is_static */ , 0);
1156 clib_warning ("failed to %s remote mapping!", is_add ? "add" : "delete");
1160 unformat_free (line_input);
1164 VLIB_CLI_COMMAND (lisp_add_del_remote_mapping_command) =
1166 .path = "lisp remote-mapping",.short_help =
1167 "lisp remote-mapping add|del [del-all] vni <vni> "
1168 "eid <est-eid> [action <no-action|natively-forward|"
1169 "send-map-request|drop>] rloc <dst-locator> p <prio> w <weight> "
1170 "[rloc <dst-locator> ... ]",.function =
1171 lisp_add_del_remote_mapping_command_fn,};
1174 * Handler for add/del adjacency CLI.
1176 static clib_error_t *
1177 lisp_add_del_adjacency_command_fn (vlib_main_t * vm, unformat_input_t * input,
1178 vlib_cli_command_t * cmd)
1180 clib_error_t *error = 0;
1181 unformat_input_t _line_input, *line_input = &_line_input;
1182 vnet_lisp_add_del_adjacency_args_t _a, *a = &_a;
1184 ip_prefix_t *reid_ippref, *leid_ippref;
1185 gid_address_t leid, reid;
1186 u8 *dmac = gid_address_mac (&reid);
1187 u8 *smac = gid_address_mac (&leid);
1188 u8 reid_set = 0, leid_set = 0;
1192 /* Get a line of input. */
1193 if (!unformat_user (input, unformat_line_input, line_input))
1196 memset (&reid, 0, sizeof (reid));
1197 memset (&leid, 0, sizeof (leid));
1199 leid_ippref = &gid_address_ippref (&leid);
1200 reid_ippref = &gid_address_ippref (&reid);
1202 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1204 if (unformat (line_input, "del"))
1206 else if (unformat (line_input, "add"))
1208 else if (unformat (line_input, "reid %U",
1209 unformat_ip_prefix, reid_ippref))
1211 gid_address_type (&reid) = GID_ADDR_IP_PREFIX;
1214 else if (unformat (line_input, "reid %U", unformat_mac_address, dmac))
1216 gid_address_type (&reid) = GID_ADDR_MAC;
1219 else if (unformat (line_input, "vni %u", &vni))
1221 gid_address_vni (&leid) = vni;
1222 gid_address_vni (&reid) = vni;
1224 else if (unformat (line_input, "leid %U",
1225 unformat_ip_prefix, leid_ippref))
1227 gid_address_type (&leid) = GID_ADDR_IP_PREFIX;
1230 else if (unformat (line_input, "leid %U", unformat_mac_address, smac))
1232 gid_address_type (&leid) = GID_ADDR_MAC;
1237 clib_warning ("parse error");
1242 if (!reid_set || !leid_set)
1244 clib_warning ("missing remote or local eid!");
1248 if ((gid_address_type (&leid) != gid_address_type (&reid))
1249 || (gid_address_type (&reid) == GID_ADDR_IP_PREFIX
1250 && ip_prefix_version (reid_ippref)
1251 != ip_prefix_version (leid_ippref)))
1253 clib_warning ("remote and local EIDs are of different types!");
1257 memset (a, 0, sizeof (a[0]));
1258 gid_address_copy (&a->leid, &leid);
1259 gid_address_copy (&a->reid, &reid);
1262 rv = vnet_lisp_add_del_adjacency (a);
1265 clib_warning ("failed to %s adjacency!", is_add ? "add" : "delete");
1268 unformat_free (line_input);
1273 VLIB_CLI_COMMAND (lisp_add_del_adjacency_command) = {
1274 .path = "lisp adjacency",
1275 .short_help = "lisp adjacency add|del vni <vni> reid <remote-eid> "
1277 .function = lisp_add_del_adjacency_command_fn,
1282 vnet_lisp_set_map_request_mode (u8 mode)
1284 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1286 if (vnet_lisp_enable_disable_status () == 0)
1288 clib_warning ("LISP is disabled!");
1289 return VNET_API_ERROR_LISP_DISABLED;
1292 if (mode >= _MR_MODE_MAX)
1294 clib_warning ("Invalid LISP map request mode %d!", mode);
1295 return VNET_API_ERROR_INVALID_ARGUMENT;
1298 lcm->map_request_mode = mode;
1302 static clib_error_t *
1303 lisp_map_request_mode_command_fn (vlib_main_t * vm,
1304 unformat_input_t * input,
1305 vlib_cli_command_t * cmd)
1307 unformat_input_t _i, *i = &_i;
1308 map_request_mode_t mr_mode = _MR_MODE_MAX;
1310 /* Get a line of input. */
1311 if (!unformat_user (input, unformat_line_input, i))
1314 while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
1316 if (unformat (i, "dst-only"))
1317 mr_mode = MR_MODE_DST_ONLY;
1318 else if (unformat (i, "src-dst"))
1319 mr_mode = MR_MODE_SRC_DST;
1322 clib_warning ("parse error '%U'", format_unformat_error, i);
1327 if (_MR_MODE_MAX == mr_mode)
1329 clib_warning ("No LISP map request mode entered!");
1333 vnet_lisp_set_map_request_mode (mr_mode);
1339 VLIB_CLI_COMMAND (lisp_map_request_mode_command) = {
1340 .path = "lisp map-request mode",
1341 .short_help = "lisp map-request mode dst-only|src-dst",
1342 .function = lisp_map_request_mode_command_fn,
1347 format_lisp_map_request_mode (u8 * s, va_list * args)
1349 u32 mode = va_arg (*args, u32);
1354 return format (0, "dst-only");
1356 return format (0, "src-dst");
1361 static clib_error_t *
1362 lisp_show_map_request_mode_command_fn (vlib_main_t * vm,
1363 unformat_input_t * input,
1364 vlib_cli_command_t * cmd)
1366 vlib_cli_output (vm, "map-request mode: %U", format_lisp_map_request_mode,
1367 vnet_lisp_get_map_request_mode ());
1372 VLIB_CLI_COMMAND (lisp_show_map_request_mode_command) = {
1373 .path = "show lisp map-request mode",
1374 .short_help = "show lisp map-request mode",
1375 .function = lisp_show_map_request_mode_command_fn,
1379 static clib_error_t *
1380 lisp_show_map_resolvers_command_fn (vlib_main_t * vm,
1381 unformat_input_t * input,
1382 vlib_cli_command_t * cmd)
1385 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1387 vec_foreach (mr, lcm->map_resolvers)
1389 vlib_cli_output (vm, "%U", format_ip_address, &mr->address);
1395 VLIB_CLI_COMMAND (lisp_show_map_resolvers_command) = {
1396 .path = "show lisp map-resolvers",
1397 .short_help = "show lisp map-resolvers",
1398 .function = lisp_show_map_resolvers_command_fn,
1403 vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add)
1405 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1406 u32 locator_set_index = ~0;
1410 if (vnet_lisp_enable_disable_status () == 0)
1412 clib_warning ("LISP is disabled!");
1413 return VNET_API_ERROR_LISP_DISABLED;
1416 p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name);
1419 clib_warning ("locator-set %v doesn't exist", locator_set_name);
1422 locator_set_index = p[0];
1426 pool_get (lcm->mapping_pool, m);
1427 m->locator_set_index = locator_set_index;
1429 lcm->pitr_map_index = m - lcm->mapping_pool;
1431 /* enable pitr mode */
1436 /* remove pitr mapping */
1437 pool_put_index (lcm->mapping_pool, lcm->pitr_map_index);
1439 /* disable pitr mode */
1445 static clib_error_t *
1446 lisp_pitr_set_locator_set_command_fn (vlib_main_t * vm,
1447 unformat_input_t * input,
1448 vlib_cli_command_t * cmd)
1450 u8 locator_name_set = 0;
1451 u8 *locator_set_name = 0;
1453 unformat_input_t _line_input, *line_input = &_line_input;
1454 clib_error_t *error = 0;
1457 /* Get a line of input. */
1458 if (!unformat_user (input, unformat_line_input, line_input))
1461 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1463 if (unformat (line_input, "ls %_%v%_", &locator_set_name))
1464 locator_name_set = 1;
1465 else if (unformat (line_input, "disable"))
1468 return clib_error_return (0, "parse error");
1471 if (!locator_name_set)
1473 clib_warning ("No locator set specified!");
1476 rv = vnet_lisp_pitr_set_locator_set (locator_set_name, is_add);
1479 error = clib_error_return (0, "failed to %s pitr!",
1480 is_add ? "add" : "delete");
1484 if (locator_set_name)
1485 vec_free (locator_set_name);
1490 VLIB_CLI_COMMAND (lisp_pitr_set_locator_set_command) = {
1491 .path = "lisp pitr",
1492 .short_help = "lisp pitr [disable] ls <locator-set-name>",
1493 .function = lisp_pitr_set_locator_set_command_fn,
1497 static clib_error_t *
1498 lisp_show_pitr_command_fn (vlib_main_t * vm,
1499 unformat_input_t * input, vlib_cli_command_t * cmd)
1501 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1506 vlib_cli_output (vm, "%=20s%=16s",
1507 "pitr", lcm->lisp_pitr ? "locator-set" : "");
1509 if (!lcm->lisp_pitr)
1511 vlib_cli_output (vm, "%=20s", "disable");
1515 if (~0 == lcm->pitr_map_index)
1517 tmp_str = format (0, "N/A");
1521 m = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
1522 if (~0 != m->locator_set_index)
1525 pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index);
1526 tmp_str = format (0, "%s", ls->name);
1530 tmp_str = format (0, "N/A");
1533 vec_add1 (tmp_str, 0);
1535 vlib_cli_output (vm, "%=20s%=16s", "enable", tmp_str);
1543 VLIB_CLI_COMMAND (lisp_show_pitr_command) = {
1544 .path = "show lisp pitr",
1545 .short_help = "Show pitr",
1546 .function = lisp_show_pitr_command_fn,
1551 format_eid_entry (u8 * s, va_list * args)
1553 vnet_main_t *vnm = va_arg (*args, vnet_main_t *);
1554 lisp_cp_main_t *lcm = va_arg (*args, lisp_cp_main_t *);
1555 mapping_t *mapit = va_arg (*args, mapping_t *);
1556 locator_set_t *ls = va_arg (*args, locator_set_t *);
1557 gid_address_t *gid = &mapit->eid;
1558 u32 ttl = mapit->ttl;
1559 u8 aut = mapit->authoritative;
1564 u8 *type = ls->local ? format (0, "local(%s)", ls->name)
1565 : format (0, "remote");
1567 if (vec_len (ls->locator_indices) == 0)
1569 s = format (s, "%-35U%-30s%-20u%-u", format_gid_address, gid,
1574 vec_foreach (loc_index, ls->locator_indices)
1576 locator_t *l = pool_elt_at_index (lcm->locator_pool, loc_index[0]);
1578 loc = format (0, "%U", format_vnet_sw_if_index_name, vnm,
1581 loc = format (0, "%U", format_ip_address,
1582 &gid_address_ip (&l->address));
1586 s = format (s, "%-35U%-20s%-30v%-20u%-u\n", format_gid_address,
1587 gid, type, loc, ttl, aut);
1591 s = format (s, "%55s%v\n", "", loc);
1597 static clib_error_t *
1598 lisp_show_eid_table_command_fn (vlib_main_t * vm,
1599 unformat_input_t * input,
1600 vlib_cli_command_t * cmd)
1602 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1604 unformat_input_t _line_input, *line_input = &_line_input;
1610 memset (&eid, 0, sizeof (eid));
1612 /* Get a line of input. */
1613 if (!unformat_user (input, unformat_line_input, line_input))
1616 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1618 if (unformat (line_input, "eid %U", unformat_gid_address, &eid))
1620 else if (unformat (line_input, "local"))
1622 else if (unformat (line_input, "remote"))
1625 return clib_error_return (0, "parse error: '%U'",
1626 format_unformat_error, line_input);
1629 vlib_cli_output (vm, "%-35s%-20s%-30s%-20s%-s",
1630 "EID", "type", "locators", "ttl", "autoritative");
1635 pool_foreach (mapit, lcm->mapping_pool,
1637 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
1638 mapit->locator_set_index);
1639 if (filter && !((1 == filter && ls->local) ||
1640 (2 == filter && !ls->local)))
1644 vlib_cli_output (vm, "%U", format_eid_entry, lcm->vnet_main,
1651 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &eid);
1652 if ((u32) ~ 0 == mi)
1655 mapit = pool_elt_at_index (lcm->mapping_pool, mi);
1656 locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool,
1657 mapit->locator_set_index);
1659 if (filter && !((1 == filter && ls->local) ||
1660 (2 == filter && !ls->local)))
1665 vlib_cli_output (vm, "%U,", format_eid_entry, lcm->vnet_main,
1673 VLIB_CLI_COMMAND (lisp_cp_show_eid_table_command) = {
1674 .path = "show lisp eid-table",
1675 .short_help = "Shows EID table",
1676 .function = lisp_show_eid_table_command_fn,
1680 /* cleans locator to locator-set data and removes locators not part of
1681 * any locator-set */
1683 clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi)
1685 u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes, *to_be_deleted = 0;
1686 locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool, lsi);
1687 for (i = 0; i < vec_len (ls->locator_indices); i++)
1689 loc_indexp = vec_elt_at_index (ls->locator_indices, i);
1690 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets,
1692 for (j = 0; j < vec_len (ls_indexes[0]); j++)
1694 ls_indexp = vec_elt_at_index (ls_indexes[0], j);
1695 if (ls_indexp[0] == lsi)
1699 /* delete index for removed locator-set */
1700 vec_del1 (ls_indexes[0], j);
1702 /* delete locator if it's part of no locator-set */
1703 if (vec_len (ls_indexes[0]) == 0)
1705 pool_put_index (lcm->locator_pool, loc_indexp[0]);
1706 vec_add1 (to_be_deleted, i);
1712 for (i = 0; i < vec_len (to_be_deleted); i++)
1714 loc_indexp = vec_elt_at_index (to_be_deleted, i);
1715 vec_del1 (ls->locator_indices, loc_indexp[0]);
1717 vec_free (to_be_deleted);
1721 static inline uword *
1722 get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p)
1724 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1729 /* find locator-set */
1732 p = hash_get_mem (lcm->locator_set_index_by_name, a->name);
1743 is_locator_in_locator_set (lisp_cp_main_t * lcm, locator_set_t * ls,
1749 ASSERT (ls != NULL);
1750 ASSERT (loc != NULL);
1752 vec_foreach (locit, ls->locator_indices)
1754 itloc = pool_elt_at_index (lcm->locator_pool, locit[0]);
1755 if ((ls->local && itloc->sw_if_index == loc->sw_if_index) ||
1756 (!ls->local && !gid_address_cmp (&itloc->address, &loc->address)))
1758 clib_warning ("Duplicate locator");
1759 return VNET_API_ERROR_VALUE_EXIST;
1767 remove_locator_from_locator_set (locator_set_t * ls, u32 * locit,
1768 u32 ls_index, u32 loc_id)
1770 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1771 u32 **ls_indexes = NULL;
1773 ASSERT (ls != NULL);
1774 ASSERT (locit != NULL);
1776 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets, locit[0]);
1777 pool_put_index (lcm->locator_pool, locit[0]);
1778 vec_del1 (ls->locator_indices, loc_id);
1779 vec_del1 (ls_indexes[0], ls_index);
1783 vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a,
1784 locator_set_t * ls, u32 * ls_result)
1786 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1787 locator_t *loc = NULL, *itloc = NULL;
1788 uword _p = (u32) ~ 0, *p = &_p;
1789 u32 loc_index = ~0, ls_index = ~0, *locit = NULL, **ls_indexes = NULL;
1795 if (vnet_lisp_enable_disable_status () == 0)
1797 clib_warning ("LISP is disabled!");
1798 return VNET_API_ERROR_LISP_DISABLED;
1801 p = get_locator_set_index (a, p);
1804 clib_warning ("locator-set %v doesn't exist", a->name);
1805 return VNET_API_ERROR_INVALID_ARGUMENT;
1810 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1813 clib_warning ("locator-set %d to be overwritten doesn't exist!",
1815 return VNET_API_ERROR_INVALID_ARGUMENT;
1822 ls_result[0] = p[0];
1824 /* allocate locators */
1825 vec_foreach (itloc, a->locators)
1827 ret = is_locator_in_locator_set (lcm, ls, itloc);
1833 pool_get (lcm->locator_pool, loc);
1835 loc_index = loc - lcm->locator_pool;
1837 vec_add1 (ls->locator_indices, loc_index);
1839 vec_validate (lcm->locator_to_locator_sets, loc_index);
1840 ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets,
1842 vec_add1 (ls_indexes[0], p[0]);
1849 itloc = a->locators;
1851 vec_foreach (locit, ls->locator_indices)
1853 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
1855 if (loc->local && loc->sw_if_index == itloc->sw_if_index)
1857 remove_locator_from_locator_set (ls, locit, ls_index, loc_id);
1859 if (0 == loc->local &&
1860 !gid_address_cmp (&loc->address, &itloc->address))
1862 remove_locator_from_locator_set (ls, locit, ls_index, loc_id);
1873 vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
1876 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
1878 uword _p = (u32) ~ 0, *p = &_p;
1883 if (vnet_lisp_enable_disable_status () == 0)
1885 clib_warning ("LISP is disabled!");
1886 return VNET_API_ERROR_LISP_DISABLED;
1891 p = get_locator_set_index (a, p);
1894 if (p && p[0] != (u32) ~ 0)
1896 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1899 clib_warning ("locator-set %d to be overwritten doesn't exist!",
1904 /* clean locator to locator-set vectors and remove locators if
1905 * they're not part of another locator-set */
1906 clean_locator_to_locator_set (lcm, p[0]);
1908 /* remove locator indices from locator set */
1909 vec_free (ls->locator_indices);
1914 ls_result[0] = p[0];
1916 /* new locator-set */
1919 pool_get (lcm->locator_set_pool, ls);
1920 memset (ls, 0, sizeof (*ls));
1921 ls_index = ls - lcm->locator_set_pool;
1925 ls->name = vec_dup (a->name);
1927 if (!lcm->locator_set_index_by_name)
1928 lcm->locator_set_index_by_name = hash_create_vec (
1936 hash_set_mem (lcm->locator_set_index_by_name, ls->name,
1939 /* mark as local locator-set */
1940 vec_add1 (lcm->local_locator_set_indexes, ls_index);
1942 ls->local = a->local;
1944 ls_result[0] = ls_index;
1947 ret = vnet_lisp_add_del_locator (a, ls, NULL);
1955 p = get_locator_set_index (a, p);
1958 clib_warning ("locator-set %v doesn't exists", a->name);
1962 ls = pool_elt_at_index (lcm->locator_set_pool, p[0]);
1965 clib_warning ("locator-set with index %d doesn't exists", p[0]);
1969 if (lcm->mreq_itr_rlocs == p[0])
1971 clib_warning ("Can't delete the locator-set used to constrain "
1972 "the itr-rlocs in map-requests!");
1976 if (vec_len (lcm->locator_set_to_eids) != 0)
1978 eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids, p[0]);
1979 if (vec_len (eid_indexes[0]) != 0)
1982 ("Can't delete a locator that supports a mapping!");
1987 /* clean locator to locator-sets data */
1988 clean_locator_to_locator_set (lcm, p[0]);
1994 vec_foreach_index (it, lcm->local_locator_set_indexes)
1996 lsi = vec_elt (lcm->local_locator_set_indexes, it);
1999 vec_del1 (lcm->local_locator_set_indexes, it);
2003 hash_unset_mem (lcm->locator_set_index_by_name, ls->name);
2005 vec_free (ls->name);
2006 vec_free (ls->locator_indices);
2007 pool_put (lcm->locator_set_pool, ls);
2013 vnet_lisp_enable_disable (u8 is_enable)
2016 clib_error_t *error = 0;
2017 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2018 vnet_lisp_gpe_enable_disable_args_t _a, *a = &_a;
2020 a->is_en = is_enable;
2021 error = vnet_lisp_gpe_enable_disable (a);
2024 return clib_error_return (0, "failed to %s data-plane!",
2025 a->is_en ? "enable" : "disable");
2030 /* enable all l2 and l3 ifaces */
2033 hash_foreach(vni, dp_table, lcm->table_id_by_vni, ({
2034 dp_add_del_iface(lcm, vni, 0, 1);
2036 hash_foreach(vni, dp_table, lcm->bd_id_by_vni, ({
2037 dp_add_del_iface(lcm, vni, /* is_l2 */ 1, 1);
2043 /* clear interface table */
2044 hash_free (lcm->dp_intf_by_vni);
2045 hash_free (lcm->fwd_entry_by_mapping_index);
2046 pool_free (lcm->fwd_entry_pool);
2049 /* update global flag */
2050 lcm->is_enabled = is_enable;
2055 static clib_error_t *
2056 lisp_enable_disable_command_fn (vlib_main_t * vm, unformat_input_t * input,
2057 vlib_cli_command_t * cmd)
2059 unformat_input_t _line_input, *line_input = &_line_input;
2063 /* Get a line of input. */
2064 if (!unformat_user (input, unformat_line_input, line_input))
2067 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2069 if (unformat (line_input, "enable"))
2074 else if (unformat (line_input, "disable"))
2078 return clib_error_return (0, "parse error: '%U'",
2079 format_unformat_error, line_input);
2084 return clib_error_return (0, "state not set");
2086 return vnet_lisp_enable_disable (is_enabled);
2090 VLIB_CLI_COMMAND (lisp_cp_enable_disable_command) = {
2092 .short_help = "lisp [enable|disable]",
2093 .function = lisp_enable_disable_command_fn,
2098 vnet_lisp_enable_disable_status (void)
2100 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2101 return lcm->is_enabled;
2105 format_lisp_status (u8 * s, va_list * args)
2107 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2108 return format (s, "%s", lcm->is_enabled ? "enabled" : "disabled");
2111 static clib_error_t *
2112 lisp_show_status_command_fn (vlib_main_t * vm, unformat_input_t * input,
2113 vlib_cli_command_t * cmd)
2116 msg = format (msg, "feature: %U\ngpe: %U\n",
2117 format_lisp_status, format_vnet_lisp_gpe_status);
2118 vlib_cli_output (vm, "%v", msg);
2124 VLIB_CLI_COMMAND (lisp_show_status_command) = {
2125 .path = "show lisp status",
2126 .short_help = "show lisp status",
2127 .function = lisp_show_status_command_fn,
2131 static clib_error_t *
2132 lisp_show_eid_table_map_command_fn (vlib_main_t * vm,
2133 unformat_input_t * input,
2134 vlib_cli_command_t * cmd)
2137 unformat_input_t _line_input, *line_input = &_line_input;
2138 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2139 uword *vni_table = 0;
2142 /* Get a line of input. */
2143 if (!unformat_user (input, unformat_line_input, line_input))
2146 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2148 if (unformat (line_input, "l2"))
2150 vni_table = lcm->bd_id_by_vni;
2153 else if (unformat (line_input, "l3"))
2155 vni_table = lcm->table_id_by_vni;
2159 return clib_error_return (0, "parse error: '%U'",
2160 format_unformat_error, line_input);
2165 vlib_cli_output (vm, "Error: expected l2|l3 param!\n");
2169 vlib_cli_output (vm, "%=10s%=10s", "VNI", is_l2 ? "BD" : "VRF");
2172 hash_foreach_pair (p, vni_table,
2174 vlib_cli_output (vm, "%=10d%=10d", p->key, p->value[0]);
2182 VLIB_CLI_COMMAND (lisp_show_eid_table_map_command) = {
2183 .path = "show lisp eid-table map",
2184 .short_help = "show lisp eid-table l2|l3",
2185 .function = lisp_show_eid_table_map_command_fn,
2189 static clib_error_t *
2190 lisp_add_del_locator_set_command_fn (vlib_main_t * vm,
2191 unformat_input_t * input,
2192 vlib_cli_command_t * cmd)
2194 lisp_gpe_main_t *lgm = &lisp_gpe_main;
2195 vnet_main_t *vnm = lgm->vnet_main;
2196 unformat_input_t _line_input, *line_input = &_line_input;
2198 clib_error_t *error = 0;
2199 u8 *locator_set_name = 0;
2200 locator_t locator, *locators = 0;
2201 vnet_lisp_add_del_locator_set_args_t _a, *a = &_a;
2205 memset (&locator, 0, sizeof (locator));
2206 memset (a, 0, sizeof (a[0]));
2208 /* Get a line of input. */
2209 if (!unformat_user (input, unformat_line_input, line_input))
2212 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2214 if (unformat (line_input, "add %_%v%_", &locator_set_name))
2216 else if (unformat (line_input, "del %_%v%_", &locator_set_name))
2218 else if (unformat (line_input, "iface %U p %d w %d",
2219 unformat_vnet_sw_interface, vnm,
2220 &locator.sw_if_index, &locator.priority,
2224 vec_add1 (locators, locator);
2228 error = unformat_parse_error (line_input);
2233 a->name = locator_set_name;
2234 a->locators = locators;
2238 rv = vnet_lisp_add_del_locator_set (a, &ls_index);
2241 error = clib_error_return (0, "failed to %s locator-set!",
2242 is_add ? "add" : "delete");
2246 vec_free (locators);
2247 if (locator_set_name)
2248 vec_free (locator_set_name);
2253 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_set_command) = {
2254 .path = "lisp locator-set",
2255 .short_help = "lisp locator-set add/del <name> [iface <iface-name> "
2256 "p <priority> w <weight>]",
2257 .function = lisp_add_del_locator_set_command_fn,
2261 static clib_error_t *
2262 lisp_add_del_locator_in_set_command_fn (vlib_main_t * vm,
2263 unformat_input_t * input,
2264 vlib_cli_command_t * cmd)
2266 lisp_gpe_main_t *lgm = &lisp_gpe_main;
2267 vnet_main_t *vnm = lgm->vnet_main;
2268 unformat_input_t _line_input, *line_input = &_line_input;
2270 clib_error_t *error = 0;
2271 u8 *locator_set_name = 0;
2272 u8 locator_set_name_set = 0;
2273 locator_t locator, *locators = 0;
2274 vnet_lisp_add_del_locator_set_args_t _a, *a = &_a;
2277 memset (&locator, 0, sizeof (locator));
2278 memset (a, 0, sizeof (a[0]));
2280 /* Get a line of input. */
2281 if (!unformat_user (input, unformat_line_input, line_input))
2284 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2286 if (unformat (line_input, "add"))
2288 else if (unformat (line_input, "del"))
2290 else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name))
2291 locator_set_name_set = 1;
2292 else if (unformat (line_input, "iface %U p %d w %d",
2293 unformat_vnet_sw_interface, vnm,
2294 &locator.sw_if_index, &locator.priority,
2298 vec_add1 (locators, locator);
2302 error = unformat_parse_error (line_input);
2307 if (!locator_set_name_set)
2309 error = clib_error_return (0, "locator_set name not set!");
2313 a->name = locator_set_name;
2314 a->locators = locators;
2318 vnet_lisp_add_del_locator (a, 0, &ls_index);
2321 vec_free (locators);
2322 vec_free (locator_set_name);
2327 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_in_set_command) = {
2328 .path = "lisp locator",
2329 .short_help = "lisp locator add/del locator-set <name> iface <iface-name> "
2330 "p <priority> w <weight>",
2331 .function = lisp_add_del_locator_in_set_command_fn,
2335 static clib_error_t *
2336 lisp_cp_show_locator_sets_command_fn (vlib_main_t * vm,
2337 unformat_input_t * input,
2338 vlib_cli_command_t * cmd)
2340 locator_set_t *lsit;
2343 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2345 vlib_cli_output (vm, "%s%=16s%=16s%=16s", "Locator-set", "Locator",
2346 "Priority", "Weight");
2349 pool_foreach (lsit, lcm->locator_set_pool,
2355 msg = format (msg, "%v", lsit->name);
2359 msg = format (msg, "<%s-%d>", "remote", lsit - lcm->locator_set_pool);
2361 vec_foreach (locit, lsit->locator_indices)
2365 msg = format (msg, "%16s", " ");
2367 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
2369 msg = format (msg, "%16d%16d%16d\n", loc->sw_if_index, loc->priority,
2372 msg = format (msg, "%16U%16d%16d\n", format_ip_address,
2373 &gid_address_ip(&loc->address), loc->priority,
2377 vlib_cli_output (vm, "%v", msg);
2385 VLIB_CLI_COMMAND (lisp_cp_show_locator_sets_command) = {
2386 .path = "show lisp locator-set",
2387 .short_help = "Shows locator-sets",
2388 .function = lisp_cp_show_locator_sets_command_fn,
2392 static map_resolver_t *
2393 get_map_resolver (ip_address_t * a)
2395 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2398 vec_foreach (mr, lcm->map_resolvers)
2400 if (!ip_address_cmp (&mr->address, a))
2409 vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
2411 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2413 map_resolver_t _mr, *mr = &_mr;
2415 if (vnet_lisp_enable_disable_status () == 0)
2417 clib_warning ("LISP is disabled!");
2418 return VNET_API_ERROR_LISP_DISABLED;
2424 if (get_map_resolver (&a->address))
2426 clib_warning ("map-resolver %U already exists!", format_ip_address,
2431 memset (mr, 0, sizeof (*mr));
2432 ip_address_copy (&mr->address, &a->address);
2433 vec_add1 (lcm->map_resolvers, *mr);
2435 if (vec_len (lcm->map_resolvers) == 1)
2436 lcm->do_map_resolver_election = 1;
2440 for (i = 0; i < vec_len (lcm->map_resolvers); i++)
2442 mr = vec_elt_at_index (lcm->map_resolvers, i);
2443 if (!ip_address_cmp (&mr->address, &a->address))
2445 if (!ip_address_cmp (&mr->address, &lcm->active_map_resolver))
2446 lcm->do_map_resolver_election = 1;
2448 vec_del1 (lcm->map_resolvers, i);
2456 static clib_error_t *
2457 lisp_add_del_map_resolver_command_fn (vlib_main_t * vm,
2458 unformat_input_t * input,
2459 vlib_cli_command_t * cmd)
2461 unformat_input_t _line_input, *line_input = &_line_input;
2462 u8 is_add = 1, addr_set = 0;
2463 ip_address_t ip_addr;
2464 clib_error_t *error = 0;
2466 vnet_lisp_add_del_map_resolver_args_t _a, *a = &_a;
2468 /* Get a line of input. */
2469 if (!unformat_user (input, unformat_line_input, line_input))
2472 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2474 if (unformat (line_input, "add"))
2476 else if (unformat (line_input, "del"))
2478 else if (unformat (line_input, "%U", unformat_ip_address, &ip_addr))
2482 error = unformat_parse_error (line_input);
2489 error = clib_error_return (0, "Map-resolver address must be set!");
2494 a->address = ip_addr;
2495 rv = vnet_lisp_add_del_map_resolver (a);
2498 error = clib_error_return (0, "failed to %s map-resolver!",
2499 is_add ? "add" : "delete");
2507 VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = {
2508 .path = "lisp map-resolver",
2509 .short_help = "lisp map-resolver add/del <ip_address>",
2510 .function = lisp_add_del_map_resolver_command_fn,
2515 vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a)
2517 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2520 if (vnet_lisp_enable_disable_status () == 0)
2522 clib_warning ("LISP is disabled!");
2523 return VNET_API_ERROR_LISP_DISABLED;
2528 p = hash_get_mem (lcm->locator_set_index_by_name, a->locator_set_name);
2531 clib_warning ("locator-set %v doesn't exist", a->locator_set_name);
2532 return VNET_API_ERROR_INVALID_ARGUMENT;
2535 lcm->mreq_itr_rlocs = p[0];
2539 lcm->mreq_itr_rlocs = ~0;
2545 static clib_error_t *
2546 lisp_add_del_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2547 unformat_input_t * input,
2548 vlib_cli_command_t * cmd)
2550 unformat_input_t _line_input, *line_input = &_line_input;
2552 u8 *locator_set_name = 0;
2553 clib_error_t *error = 0;
2555 vnet_lisp_add_del_mreq_itr_rloc_args_t _a, *a = &_a;
2557 /* Get a line of input. */
2558 if (!unformat_user (input, unformat_line_input, line_input))
2561 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2563 if (unformat (line_input, "del"))
2565 else if (unformat (line_input, "add %s", &locator_set_name))
2569 error = unformat_parse_error (line_input);
2575 a->locator_set_name = locator_set_name;
2576 rv = vnet_lisp_add_del_mreq_itr_rlocs (a);
2579 error = clib_error_return (0, "failed to %s map-request itr-rlocs!",
2580 is_add ? "add" : "delete");
2583 vec_free (locator_set_name);
2591 VLIB_CLI_COMMAND (lisp_add_del_map_request_command) = {
2592 .path = "lisp map-request itr-rlocs",
2593 .short_help = "lisp map-request itr-rlocs add/del <locator_set_name>",
2594 .function = lisp_add_del_mreq_itr_rlocs_command_fn,
2598 static clib_error_t *
2599 lisp_show_mreq_itr_rlocs_command_fn (vlib_main_t * vm,
2600 unformat_input_t * input,
2601 vlib_cli_command_t * cmd)
2603 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
2604 locator_set_t *loc_set;
2606 vlib_cli_output (vm, "%=20s", "itr-rlocs");
2608 if (~0 == lcm->mreq_itr_rlocs)
2613 loc_set = pool_elt_at_index (lcm->locator_set_pool, lcm->mreq_itr_rlocs);
2615 vlib_cli_output (vm, "%=20s", loc_set->name);
2621 VLIB_CLI_COMMAND (lisp_show_map_request_command) = {
2622 .path = "show lisp map-request itr-rlocs",
2623 .short_help = "Shows map-request itr-rlocs",
2624 .function = lisp_show_mreq_itr_rlocs_command_fn,
2628 /* Statistics (not really errors) */
2629 #define foreach_lisp_cp_lookup_error \
2631 _(MAP_REQUESTS_SENT, "map-request sent")
2633 static char *lisp_cp_lookup_error_strings[] = {
2634 #define _(sym,string) string,
2635 foreach_lisp_cp_lookup_error
2641 #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
2642 foreach_lisp_cp_lookup_error
2644 LISP_CP_LOOKUP_N_ERROR,
2645 } lisp_cp_lookup_error_t;
2649 LISP_CP_LOOKUP_NEXT_DROP,
2650 LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
2651 LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
2652 LISP_CP_LOOKUP_N_NEXT,
2653 } lisp_cp_lookup_next_t;
2657 gid_address_t dst_eid;
2658 ip_address_t map_resolver_ip;
2659 } lisp_cp_lookup_trace_t;
2662 format_lisp_cp_lookup_trace (u8 * s, va_list * args)
2664 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
2665 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
2666 lisp_cp_lookup_trace_t *t = va_arg (*args, lisp_cp_lookup_trace_t *);
2668 s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
2669 format_ip_address, &t->map_resolver_ip, format_gid_address,
2675 get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip,
2676 ip_address_t * sloc)
2678 map_resolver_t *mrit;
2681 if (vec_len (lcm->map_resolvers) == 0)
2683 clib_warning ("No map-resolver configured");
2687 /* find the first mr ip we have a route to and the ip of the
2688 * iface that has a route to it */
2689 vec_foreach (mrit, lcm->map_resolvers)
2692 if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, a, sloc))
2694 ip_address_copy (mr_ip, a);
2696 /* also update globals */
2701 clib_warning ("Can't find map-resolver and local interface ip!");
2705 static gid_address_t *
2706 build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
2712 ip_interface_address_t *ia = 0;
2713 gid_address_t gid_data, *gid = &gid_data;
2714 gid_address_t *rlocs = 0;
2715 ip_prefix_t *ippref = &gid_address_ippref (gid);
2716 ip_address_t *rloc = &ip_prefix_addr (ippref);
2718 memset (gid, 0, sizeof (gid[0]));
2719 gid_address_type (gid) = GID_ADDR_IP_PREFIX;
2720 for (i = 0; i < vec_len (loc_set->locator_indices); i++)
2722 loc_indexp = vec_elt_at_index (loc_set->locator_indices, i);
2723 loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
2725 /* Add ipv4 locators first TODO sort them */
2728 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
2729 loc->sw_if_index, 1 /* unnumbered */,
2731 addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
2732 ip_address_set (rloc, addr, IP4);
2733 ip_prefix_len (ippref) = 32;
2734 ip_prefix_normalize (ippref);
2735 vec_add1 (rlocs, gid[0]);
2738 /* Add ipv6 locators */
2739 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
2740 loc->sw_if_index, 1 /* unnumbered */,
2742 addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
2743 ip_address_set (rloc, addr, IP6);
2744 ip_prefix_len (ippref) = 128;
2745 ip_prefix_normalize (ippref);
2746 vec_add1 (rlocs, gid[0]);
2754 static vlib_buffer_t *
2755 build_encapsulated_map_request (lisp_cp_main_t * lcm,
2756 gid_address_t * seid, gid_address_t * deid,
2757 locator_set_t * loc_set, ip_address_t * mr_ip,
2758 ip_address_t * sloc, u8 is_smr_invoked,
2759 u64 * nonce_res, u32 * bi_res)
2763 gid_address_t *rlocs = 0;
2764 vlib_main_t *vm = lcm->vlib_main;
2766 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
2768 clib_warning ("Can't allocate buffer for Map-Request!");
2772 b = vlib_get_buffer (vm, bi);
2774 /* leave some space for the encap headers */
2775 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
2778 rlocs = build_itr_rloc_list (lcm, loc_set);
2780 if (MR_MODE_SRC_DST == lcm->map_request_mode)
2783 memset (&sd, 0, sizeof (sd));
2784 build_src_dst (&sd, seid, deid);
2785 lisp_msg_put_mreq (lcm, b, seid, &sd, rlocs, is_smr_invoked, nonce_res);
2790 lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked,
2794 /* push ecm: udp-ip-lisp */
2795 lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid);
2797 /* push outer ip header */
2798 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc,
2808 reset_pending_mr_counters (pending_map_request_t * r)
2810 r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME;
2815 elect_map_resolver (lisp_cp_main_t * lcm)
2819 vec_foreach (mr, lcm->map_resolvers)
2823 ip_address_copy (&lcm->active_map_resolver, &mr->address);
2824 lcm->do_map_resolver_election = 0;
2831 #define send_encapsulated_map_request(lcm, seid, deid, smr) \
2832 _send_encapsulated_map_request(lcm, seid, deid, smr, 0)
2834 #define resend_encapsulated_map_request(lcm, seid, deid, smr) \
2835 _send_encapsulated_map_request(lcm, seid, deid, smr, 1)
2838 _send_encapsulated_map_request (lisp_cp_main_t * lcm,
2839 gid_address_t * seid, gid_address_t * deid,
2840 u8 is_smr_invoked, u8 is_resend)
2843 u32 next_index, bi = 0, *to_next, map_index;
2847 locator_set_t *loc_set;
2849 pending_map_request_t *pmr, *duplicate_pmr = 0;
2853 ASSERT (*lcm->pending_map_request_lock);
2855 /* if there is already a pending request remember it */
2858 pool_foreach(pmr, lcm->pending_map_requests_pool,
2860 if (!gid_address_cmp (&pmr->src, seid)
2861 && !gid_address_cmp (&pmr->dst, deid))
2863 duplicate_pmr = pmr;
2869 if (!is_resend && duplicate_pmr)
2871 /* don't send the request if there is a pending map request already */
2875 /* get locator-set for seid */
2876 if (!lcm->lisp_pitr)
2878 map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
2879 if (map_index == ~0)
2881 clib_warning ("No local mapping found in eid-table for %U!",
2882 format_gid_address, seid);
2886 map = pool_elt_at_index (lcm->mapping_pool, map_index);
2891 ("Mapping found for src eid %U is not marked as local!",
2892 format_gid_address, seid);
2895 ls_index = map->locator_set_index;
2899 map_index = lcm->pitr_map_index;
2900 map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index);
2901 ls_index = map->locator_set_index;
2904 /* overwrite locator set if map-request itr-rlocs configured */
2905 if (~0 != lcm->mreq_itr_rlocs)
2907 ls_index = lcm->mreq_itr_rlocs;
2910 loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index);
2912 while (lcm->do_map_resolver_election
2913 | (0 == ip_fib_get_first_egress_ip_for_dst (lcm,
2914 &lcm->active_map_resolver,
2917 if (0 == elect_map_resolver (lcm))
2918 /* all Mrs are down */
2921 duplicate_pmr->to_be_removed = 1;
2923 /* restart MR checking by marking all of them up */
2924 vec_foreach (mr, lcm->map_resolvers) mr->is_down = 0;
2930 /* build the encapsulated map request */
2931 b = build_encapsulated_map_request (lcm, seid, deid, loc_set,
2932 &lcm->active_map_resolver,
2933 &sloc, is_smr_invoked, &nonce, &bi);
2938 /* set fib index to default and lookup node */
2939 vnet_buffer (b)->sw_if_index[VLIB_TX] = 0;
2940 next_index = (ip_addr_version (&lcm->active_map_resolver) == IP4) ?
2941 ip4_lookup_node.index : ip6_lookup_node.index;
2943 f = vlib_get_frame_to_node (lcm->vlib_main, next_index);
2945 /* Enqueue the packet */
2946 to_next = vlib_frame_vector_args (f);
2949 vlib_put_frame_to_node (lcm->vlib_main, next_index, f);
2952 /* if there is a pending request already update it */
2954 if (clib_fifo_elts (duplicate_pmr->nonces) >= PENDING_MREQ_QUEUE_LEN)
2956 /* remove the oldest nonce */
2957 u64 CLIB_UNUSED (tmp), *nonce_del;
2958 nonce_del = clib_fifo_head (duplicate_pmr->nonces);
2959 hash_unset (lcm->pending_map_requests_by_nonce, nonce_del[0]);
2960 clib_fifo_sub1 (duplicate_pmr->nonces, tmp);
2963 clib_fifo_add1 (duplicate_pmr->nonces, nonce);
2964 hash_set (lcm->pending_map_requests_by_nonce, nonce,
2965 duplicate_pmr - lcm->pending_map_requests_pool);
2969 /* add map-request to pending requests table */
2970 pool_get (lcm->pending_map_requests_pool, pmr);
2971 memset (pmr, 0, sizeof (*pmr));
2972 gid_address_copy (&pmr->src, seid);
2973 gid_address_copy (&pmr->dst, deid);
2974 clib_fifo_add1 (pmr->nonces, nonce);
2975 pmr->is_smr_invoked = is_smr_invoked;
2976 reset_pending_mr_counters (pmr);
2977 hash_set (lcm->pending_map_requests_by_nonce, nonce,
2978 pmr - lcm->pending_map_requests_pool);
2985 get_src_and_dst_ip (void *hdr, ip_address_t * src, ip_address_t * dst)
2987 ip4_header_t *ip4 = hdr;
2990 if ((ip4->ip_version_and_header_length & 0xF0) == 0x40)
2992 ip_address_set (src, &ip4->src_address, IP4);
2993 ip_address_set (dst, &ip4->dst_address, IP4);
2998 ip_address_set (src, &ip6->src_address, IP6);
2999 ip_address_set (dst, &ip6->dst_address, IP6);
3004 lisp_get_vni_from_buffer_ip (lisp_cp_main_t * lcm, vlib_buffer_t * b,
3008 u32 vni = ~0, table_id = ~0;
3010 table_id = fib_table_get_table_id_for_sw_if_index ((version ==
3011 IP4 ? FIB_PROTOCOL_IP4 :
3017 vnip = hash_get (lcm->vni_by_table_id, table_id);
3021 clib_warning ("vrf %d is not mapped to any vni!", table_id);
3027 lisp_get_vni_from_buffer_eth (lisp_cp_main_t * lcm, vlib_buffer_t * b)
3033 l2input_main_t *l2im = &l2input_main;
3034 l2_input_config_t *config;
3035 l2_bridge_domain_t *bd_config;
3037 sw_if_index0 = vnet_buffer (b)->sw_if_index[VLIB_RX];
3038 config = vec_elt_at_index (l2im->configs, sw_if_index0);
3039 bd_config = vec_elt_at_index (l2im->bd_configs, config->bd_index);
3041 vnip = hash_get (lcm->vni_by_bd_id, bd_config->bd_id);
3045 clib_warning ("bridge domain %d is not mapped to any vni!",
3052 get_src_and_dst_eids_from_buffer (lisp_cp_main_t * lcm, vlib_buffer_t * b,
3053 gid_address_t * src, gid_address_t * dst)
3058 memset (src, 0, sizeof (*src));
3059 memset (dst, 0, sizeof (*dst));
3060 type = vnet_buffer (b)->lisp.overlay_afi;
3062 if (LISP_AFI_IP == type || LISP_AFI_IP6 == type)
3065 u8 version, preflen;
3067 gid_address_type (src) = GID_ADDR_IP_PREFIX;
3068 gid_address_type (dst) = GID_ADDR_IP_PREFIX;
3070 ip = vlib_buffer_get_current (b);
3071 get_src_and_dst_ip (ip, &gid_address_ip (src), &gid_address_ip (dst));
3073 version = gid_address_ip_version (src);
3074 preflen = ip_address_max_len (version);
3075 gid_address_ippref_len (src) = preflen;
3076 gid_address_ippref_len (dst) = preflen;
3078 vni = lisp_get_vni_from_buffer_ip (lcm, b, version);
3079 gid_address_vni (dst) = vni;
3080 gid_address_vni (src) = vni;
3082 else if (LISP_AFI_MAC == type)
3084 ethernet_header_t *eh;
3086 eh = vlib_buffer_get_current (b);
3088 gid_address_type (src) = GID_ADDR_MAC;
3089 gid_address_type (dst) = GID_ADDR_MAC;
3090 mac_copy (&gid_address_mac (src), eh->src_address);
3091 mac_copy (&gid_address_mac (dst), eh->dst_address);
3094 vni = lisp_get_vni_from_buffer_eth (lcm, b);
3096 gid_address_vni (dst) = vni;
3097 gid_address_vni (src) = vni;
3102 lisp_cp_lookup_inline (vlib_main_t * vm,
3103 vlib_node_runtime_t * node,
3104 vlib_frame_t * from_frame, int overlay)
3106 u32 *from, *to_next_drop, di, si;
3107 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3108 u32 pkts_mapped = 0;
3109 uword n_left_from, n_left_to_next_drop;
3111 from = vlib_frame_vector_args (from_frame);
3112 n_left_from = from_frame->n_vectors;
3114 while (n_left_from > 0)
3116 vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
3117 to_next_drop, n_left_to_next_drop);
3119 while (n_left_from > 0 && n_left_to_next_drop > 0)
3123 gid_address_t src, dst;
3128 to_next_drop[0] = pi0;
3130 n_left_to_next_drop -= 1;
3132 b0 = vlib_get_buffer (vm, pi0);
3133 b0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
3134 vnet_buffer (b0)->lisp.overlay_afi = overlay;
3136 /* src/dst eid pair */
3137 get_src_and_dst_eids_from_buffer (lcm, b0, &src, &dst);
3139 /* if we have remote mapping for destination already in map-chache
3140 add forwarding tunnel directly. If not send a map-request */
3141 di = gid_dictionary_sd_lookup (&lcm->mapping_index_by_gid, &dst,
3145 mapping_t *m = vec_elt_at_index (lcm->mapping_pool, di);
3146 /* send a map-request also in case of negative mapping entry
3147 with corresponding action */
3148 if (m->action == LISP_SEND_MAP_REQUEST)
3150 /* send map-request */
3151 queue_map_request (&src, &dst, 0 /* smr_invoked */ ,
3152 0 /* is_resend */ );
3157 si = gid_dictionary_lookup (&lcm->mapping_index_by_gid,
3161 dp_add_fwd_entry (lcm, si, di);
3167 /* send map-request */
3168 queue_map_request (&src, &dst, 0 /* smr_invoked */ ,
3169 0 /* is_resend */ );
3173 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
3175 lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, b0,
3178 memset (tr, 0, sizeof (*tr));
3179 gid_address_copy (&tr->dst_eid, &dst);
3180 ip_address_copy (&tr->map_resolver_ip,
3181 &lcm->active_map_resolver);
3183 gid_address_free (&dst);
3184 gid_address_free (&src);
3187 vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
3188 n_left_to_next_drop);
3190 vlib_node_increment_counter (vm, node->node_index,
3191 LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
3193 return from_frame->n_vectors;
3197 lisp_cp_lookup_ip4 (vlib_main_t * vm,
3198 vlib_node_runtime_t * node, vlib_frame_t * from_frame)
3200 return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_IP));
3204 lisp_cp_lookup_ip6 (vlib_main_t * vm,
3205 vlib_node_runtime_t * node, vlib_frame_t * from_frame)
3207 return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_IP6));
3211 VLIB_REGISTER_NODE (lisp_cp_lookup_ip4_node) = {
3212 .function = lisp_cp_lookup_ip4,
3213 .name = "lisp-cp-lookup-ip4",
3214 .vector_size = sizeof (u32),
3215 .format_trace = format_lisp_cp_lookup_trace,
3216 .type = VLIB_NODE_TYPE_INTERNAL,
3218 .n_errors = LISP_CP_LOOKUP_N_ERROR,
3219 .error_strings = lisp_cp_lookup_error_strings,
3221 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
3224 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
3225 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
3226 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
3232 VLIB_REGISTER_NODE (lisp_cp_lookup_ip6_node) = {
3233 .function = lisp_cp_lookup_ip6,
3234 .name = "lisp-cp-lookup-ip6",
3235 .vector_size = sizeof (u32),
3236 .format_trace = format_lisp_cp_lookup_trace,
3237 .type = VLIB_NODE_TYPE_INTERNAL,
3239 .n_errors = LISP_CP_LOOKUP_N_ERROR,
3240 .error_strings = lisp_cp_lookup_error_strings,
3242 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
3245 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
3246 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
3247 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
3252 /* lisp_cp_input statistics */
3253 #define foreach_lisp_cp_input_error \
3255 _(MAP_REPLIES_RECEIVED, "map-replies received")
3257 static char *lisp_cp_input_error_strings[] = {
3258 #define _(sym,string) string,
3259 foreach_lisp_cp_input_error
3265 #define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
3266 foreach_lisp_cp_input_error
3268 LISP_CP_INPUT_N_ERROR,
3269 } lisp_cp_input_error_t;
3273 LISP_CP_INPUT_NEXT_DROP,
3274 LISP_CP_INPUT_N_NEXT,
3275 } lisp_cp_input_next_t;
3279 gid_address_t dst_eid;
3280 ip4_address_t map_resolver_ip;
3281 } lisp_cp_input_trace_t;
3284 format_lisp_cp_input_trace (u8 * s, va_list * args)
3286 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
3287 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
3288 CLIB_UNUSED (lisp_cp_input_trace_t * t) =
3289 va_arg (*args, lisp_cp_input_trace_t *);
3291 s = format (s, "LISP-CP-INPUT: TODO");
3296 process_map_reply (void *arg)
3298 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3299 vlib_buffer_t *b = arg;
3300 u32 len = 0, i, ttl, dst_map_index = 0;
3302 pending_map_request_t *pmr;
3304 map_reply_hdr_t *mrep_hdr;
3308 u8 authoritative, action;
3309 locator_t *locators = 0, *loc;
3311 mrep_hdr = vlib_buffer_get_current (b);
3313 lisp_pending_map_request_lock (lcm);
3315 /* Check pending requests table and nonce */
3316 nonce = MREP_NONCE (mrep_hdr);
3317 pmr_index = hash_get (lcm->pending_map_requests_by_nonce, nonce);
3320 clib_warning ("No pending map-request entry with nonce %lu!", nonce);
3323 pmr = pool_elt_at_index (lcm->pending_map_requests_pool, pmr_index[0]);
3325 vlib_buffer_pull (b, sizeof (*mrep_hdr));
3327 for (i = 0; i < MREP_REC_COUNT (mrep_hdr); i++)
3329 h = vlib_buffer_get_current (b);
3330 ttl = clib_net_to_host_u32 (MAP_REC_TTL (h));
3331 action = MAP_REC_ACTION (h);
3332 authoritative = MAP_REC_AUTH (h);
3334 len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed);
3337 clib_warning ("Failed to parse mapping record!");
3338 vec_foreach (loc, locators)
3342 vec_free (locators);
3346 /* insert/update mappings cache */
3347 vnet_lisp_add_del_mapping (&deid, locators, action, authoritative, ttl,
3348 1, 0 /* is_static */ , &dst_map_index);
3350 /* try to program forwarding only if mapping saved or updated */
3351 if ((u32) ~ 0 != dst_map_index)
3352 lisp_add_del_adjacency (lcm, &pmr->src, &deid, 1);
3354 vec_free (locators);
3357 /* remove pending map request entry */
3360 clib_fifo_foreach (noncep, pmr->nonces, ({
3361 hash_unset(lcm->pending_map_requests_by_nonce, noncep[0]);
3365 clib_fifo_free (pmr->nonces);
3366 pool_put (lcm->pending_map_requests_pool, pmr);
3369 lisp_pending_map_request_unlock (lcm);
3374 process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm,
3377 map_request_hdr_t *mreq_hdr;
3378 gid_address_t src, dst;
3381 gid_address_t *itr_rlocs = 0, *rloc;
3383 mreq_hdr = vlib_buffer_get_current (b);
3384 vlib_buffer_pull (b, sizeof (*mreq_hdr));
3386 // nonce = MREQ_NONCE(mreq_hdr);
3388 if (!MREQ_SMR (mreq_hdr))
3390 clib_warning ("Only SMR Map-Requests supported for now!");
3395 len = lisp_msg_parse_addr (b, &src);
3399 /* for now we don't do anything with the itr's rlocs */
3401 lisp_msg_parse_itr_rlocs (b, &itr_rlocs,
3402 MREQ_ITR_RLOC_COUNT (mreq_hdr) + 1);
3406 /* TODO: RLOCs are currently unused, so free them for now */
3407 vec_foreach (rloc, itr_rlocs)
3409 gid_address_free (rloc);
3412 /* parse eid records and send SMR-invoked map-requests */
3413 for (i = 0; i < MREQ_REC_COUNT (mreq_hdr); i++)
3415 memset (&dst, 0, sizeof (dst));
3416 len = lisp_msg_parse_eid_rec (b, &dst);
3419 clib_warning ("Can't parse map-request EID-record");
3422 /* send SMR-invoked map-requests */
3423 queue_map_request (&dst, &src, 1 /* invoked */ , 0 /* resend */ );
3428 queue_map_reply (vlib_buffer_t * b)
3430 vlib_buffer_t *a = clib_mem_alloc (sizeof (a[0]) + b->current_length);
3432 clib_memcpy (a->data, b->data + b->current_data, b->current_length);
3433 a->current_length = b->current_length;
3434 a->current_data = 0;
3436 vl_api_rpc_call_main_thread (process_map_reply, (u8 *) a, sizeof (a[0])
3437 + a->current_length);
3442 lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
3443 vlib_frame_t * from_frame)
3445 u32 n_left_from, *from, *to_next_drop;
3446 lisp_msg_type_e type;
3447 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3449 from = vlib_frame_vector_args (from_frame);
3450 n_left_from = from_frame->n_vectors;
3453 while (n_left_from > 0)
3455 u32 n_left_to_next_drop;
3457 vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
3458 to_next_drop, n_left_to_next_drop);
3459 while (n_left_from > 0 && n_left_to_next_drop > 0)
3467 to_next_drop[0] = bi0;
3469 n_left_to_next_drop -= 1;
3471 b0 = vlib_get_buffer (vm, bi0);
3473 type = lisp_msg_type (vlib_buffer_get_current (b0));
3476 case LISP_MAP_REPLY:
3477 queue_map_reply (b0);
3479 case LISP_MAP_REQUEST:
3480 process_map_request (vm, lcm, b0);
3483 clib_warning ("Unsupported LISP message type %d", type);
3487 b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP];
3489 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
3495 vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
3496 n_left_to_next_drop);
3498 return from_frame->n_vectors;
3502 VLIB_REGISTER_NODE (lisp_cp_input_node) = {
3503 .function = lisp_cp_input,
3504 .name = "lisp-cp-input",
3505 .vector_size = sizeof (u32),
3506 .format_trace = format_lisp_cp_input_trace,
3507 .type = VLIB_NODE_TYPE_INTERNAL,
3509 .n_errors = LISP_CP_INPUT_N_ERROR,
3510 .error_strings = lisp_cp_input_error_strings,
3512 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
3515 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
3521 lisp_cp_init (vlib_main_t * vm)
3523 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3524 clib_error_t *error = 0;
3526 if ((error = vlib_call_init_function (vm, lisp_gpe_init)))
3529 lcm->im4 = &ip4_main;
3530 lcm->im6 = &ip6_main;
3531 lcm->vlib_main = vm;
3532 lcm->vnet_main = vnet_get_main ();
3533 lcm->mreq_itr_rlocs = ~0;
3535 memset (&lcm->active_map_resolver, 0, sizeof (lcm->active_map_resolver));
3537 lcm->pending_map_request_lock =
3538 clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
3540 lcm->pending_map_request_lock[0] = 0;
3541 gid_dictionary_init (&lcm->mapping_index_by_gid);
3542 lcm->do_map_resolver_election = 1;
3543 lcm->map_request_mode = MR_MODE_DST_ONLY;
3545 /* default vrf mapped to vni 0 */
3546 hash_set (lcm->table_id_by_vni, 0, 0);
3547 hash_set (lcm->vni_by_table_id, 0, 0);
3549 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp,
3550 lisp_cp_input_node.index, 1 /* is_ip4 */ );
3551 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6,
3552 lisp_cp_input_node.index, 0 /* is_ip4 */ );
3558 send_map_request_thread_fn (void *arg)
3560 map_request_args_t *a = arg;
3561 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3563 lisp_pending_map_request_lock (lcm);
3566 resend_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked);
3568 send_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked);
3570 lisp_pending_map_request_unlock (lcm);
3576 queue_map_request (gid_address_t * seid, gid_address_t * deid,
3577 u8 smr_invoked, u8 is_resend)
3579 map_request_args_t a;
3581 a.is_resend = is_resend;
3582 gid_address_copy (&a.seid, seid);
3583 gid_address_copy (&a.deid, deid);
3584 a.smr_invoked = smr_invoked;
3586 vl_api_rpc_call_main_thread (send_map_request_thread_fn,
3587 (u8 *) & a, sizeof (a));
3592 * Take an action with a pending map request depending on expiration time
3593 * and re-try counters.
3596 update_pending_request (pending_map_request_t * r, f64 dt)
3598 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3601 if (r->time_to_expire - dt < 0)
3602 /* it's time to decide what to do with this pending request */
3604 if (r->retries_num >= NUMBER_OF_RETRIES)
3605 /* too many retries -> assume current map resolver is not available */
3607 mr = get_map_resolver (&lcm->active_map_resolver);
3610 clib_warning ("Map resolver %U not found - probably deleted "
3611 "by the user recently.", format_ip_address,
3612 &lcm->active_map_resolver);
3616 clib_warning ("map resolver %U is unreachable, ignoring",
3617 format_ip_address, &lcm->active_map_resolver);
3619 /* mark current map resolver unavailable so it won't be
3620 * selected next time */
3622 mr->last_update = vlib_time_now (lcm->vlib_main);
3625 reset_pending_mr_counters (r);
3626 elect_map_resolver (lcm);
3628 /* try to find a next eligible map resolver and re-send */
3629 queue_map_request (&r->src, &r->dst, r->is_smr_invoked,
3635 queue_map_request (&r->src, &r->dst, r->is_smr_invoked,
3638 r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME;
3642 r->time_to_expire -= dt;
3646 remove_dead_pending_map_requests (lisp_cp_main_t * lcm)
3649 pending_map_request_t *pmr;
3650 u32 *to_be_removed = 0, *pmr_index;
3652 ASSERT (*lcm->pending_map_request_lock);
3655 pool_foreach (pmr, lcm->pending_map_requests_pool,
3657 if (pmr->to_be_removed)
3659 clib_fifo_foreach (nonce, pmr->nonces, ({
3660 hash_unset (lcm->pending_map_requests_by_nonce, nonce[0]);
3663 vec_add1 (to_be_removed, pmr - lcm->pending_map_requests_pool);
3668 vec_foreach (pmr_index, to_be_removed)
3669 pool_put_index (lcm->pending_map_requests_by_nonce, pmr_index[0]);
3671 vec_free (to_be_removed);
3675 send_map_resolver_service (vlib_main_t * vm,
3676 vlib_node_runtime_t * rt, vlib_frame_t * f)
3679 pending_map_request_t *pmr;
3680 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main ();
3684 vlib_process_wait_for_event_or_clock (vm, period);
3686 /* currently no signals are expected - just wait for clock */
3687 (void) vlib_process_get_events (vm, 0);
3689 lisp_pending_map_request_lock (lcm);
3692 pool_foreach (pmr, lcm->pending_map_requests_pool,
3694 if (!pmr->to_be_removed)
3695 update_pending_request (pmr, period);
3699 remove_dead_pending_map_requests (lcm);
3701 lisp_pending_map_request_unlock (lcm);
3709 VLIB_REGISTER_NODE (lisp_retry_service_node,static) = {
3710 .function = send_map_resolver_service,
3711 .type = VLIB_NODE_TYPE_PROCESS,
3712 .name = "lisp-retry-service",
3713 .process_log2_n_stack_bytes = 16,
3717 VLIB_INIT_FUNCTION (lisp_cp_init);
3720 * fd.io coding-style-patch-verification: ON
3723 * eval: (c-set-style "gnu")