2 * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro
4 * This file is part of GNU Zebra.
6 * GNU Zebra is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
11 * GNU Zebra is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
28 #include "sockunion.h"
36 #include "lib/route_opaque.h"
42 #include "bgpd/bgpd.h"
43 #include "bgpd/bgp_route.h"
44 #include "bgpd/bgp_attr.h"
45 #include "bgpd/bgp_aspath.h"
46 #include "bgpd/bgp_nexthop.h"
47 #include "bgpd/bgp_zebra.h"
48 #include "bgpd/bgp_fsm.h"
49 #include "bgpd/bgp_debug.h"
50 #include "bgpd/bgp_errors.h"
51 #include "bgpd/bgp_mpath.h"
52 #include "bgpd/bgp_nexthop.h"
53 #include "bgpd/bgp_nht.h"
54 #include "bgpd/bgp_bfd.h"
55 #include "bgpd/bgp_label.h"
57 #include "bgpd/rfapi/rfapi_backend.h"
58 #include "bgpd/rfapi/vnc_export_bgp.h"
60 #include "bgpd/bgp_evpn.h"
61 #include "bgpd/bgp_mplsvpn.h"
62 #include "bgpd/bgp_labelpool.h"
63 #include "bgpd/bgp_pbr.h"
64 #include "bgpd/bgp_evpn_private.h"
65 #include "bgpd/bgp_evpn_mh.h"
66 #include "bgpd/bgp_mac.h"
67 #include "bgpd/bgp_trace.h"
68 #include "bgpd/bgp_community.h"
69 #include "bgpd/bgp_lcommunity.h"
71 /* All information about zebra. */
72 struct zclient
*zclient
= NULL
;
74 /* hook to indicate vrf status change for SNMP */
75 DEFINE_HOOK(bgp_vrf_status_changed
, (struct bgp
*bgp
, struct interface
*ifp
),
78 /* Can we install into zebra? */
79 static inline bool bgp_install_info_to_zebra(struct bgp
*bgp
)
81 if (zclient
->sock
<= 0)
84 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
)) {
86 "%s: No zebra instance to talk to, not installing information",
94 int zclient_num_connects
;
96 /* Router-id update message from zebra. */
97 static int bgp_router_id_update(ZAPI_CALLBACK_ARGS
)
99 struct prefix router_id
;
101 zebra_router_id_update_read(zclient
->ibuf
, &router_id
);
103 if (BGP_DEBUG(zebra
, ZEBRA
))
104 zlog_debug("Rx Router Id update VRF %u Id %pFX", vrf_id
,
107 bgp_router_id_zebra_bump(vrf_id
, &router_id
);
111 /* Nexthop update message from zebra. */
112 static int bgp_read_nexthop_update(ZAPI_CALLBACK_ARGS
)
114 bgp_parse_nexthop_update(cmd
, vrf_id
);
118 /* Set or clear interface on which unnumbered neighbor is configured. This
119 * would in turn cause BGP to initiate or turn off IPv6 RAs on this
122 static void bgp_update_interface_nbrs(struct bgp
*bgp
, struct interface
*ifp
,
123 struct interface
*upd_ifp
)
125 struct listnode
*node
, *nnode
;
128 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
129 if (peer
->conf_if
&& (strcmp(peer
->conf_if
, ifp
->name
) == 0)) {
132 bgp_zebra_initiate_radv(bgp
, peer
);
134 bgp_zebra_terminate_radv(bgp
, peer
);
141 static int bgp_read_fec_update(ZAPI_CALLBACK_ARGS
)
143 bgp_parse_fec_update();
147 static void bgp_start_interface_nbrs(struct bgp
*bgp
, struct interface
*ifp
)
149 struct listnode
*node
, *nnode
;
152 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
153 if (peer
->conf_if
&& (strcmp(peer
->conf_if
, ifp
->name
) == 0)
154 && !peer_established(peer
)) {
155 if (peer_active(peer
))
156 BGP_EVENT_ADD(peer
, BGP_Stop
);
157 BGP_EVENT_ADD(peer
, BGP_Start
);
162 static void bgp_nbr_connected_add(struct bgp
*bgp
, struct nbr_connected
*ifc
)
164 struct listnode
*node
;
165 struct connected
*connected
;
166 struct interface
*ifp
;
169 /* Kick-off the FSM for any relevant peers only if there is a
170 * valid local address on the interface.
173 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, node
, connected
)) {
174 p
= connected
->address
;
175 if (p
->family
== AF_INET6
176 && IN6_IS_ADDR_LINKLOCAL(&p
->u
.prefix6
))
182 bgp_start_interface_nbrs(bgp
, ifp
);
185 static void bgp_nbr_connected_delete(struct bgp
*bgp
, struct nbr_connected
*ifc
,
188 struct listnode
*node
, *nnode
;
190 struct interface
*ifp
;
192 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
194 && (strcmp(peer
->conf_if
, ifc
->ifp
->name
) == 0)) {
195 peer
->last_reset
= PEER_DOWN_NBR_ADDR_DEL
;
196 BGP_EVENT_ADD(peer
, BGP_Stop
);
199 /* Free neighbor also, if we're asked to. */
202 listnode_delete(ifp
->nbr_connected
, ifc
);
203 nbr_connected_free(ifc
);
207 static int bgp_ifp_destroy(struct interface
*ifp
)
211 bgp
= ifp
->vrf
->info
;
213 if (BGP_DEBUG(zebra
, ZEBRA
))
214 zlog_debug("Rx Intf del VRF %u IF %s", ifp
->vrf
->vrf_id
,
218 bgp_update_interface_nbrs(bgp
, ifp
, NULL
);
219 hook_call(bgp_vrf_status_changed
, bgp
, ifp
);
222 bgp_mac_del_mac_entry(ifp
);
227 static int bgp_ifp_up(struct interface
*ifp
)
230 struct nbr_connected
*nc
;
231 struct listnode
*node
, *nnode
;
234 bgp
= ifp
->vrf
->info
;
236 bgp_mac_add_mac_entry(ifp
);
238 if (BGP_DEBUG(zebra
, ZEBRA
))
239 zlog_debug("Rx Intf up VRF %u IF %s", ifp
->vrf
->vrf_id
,
245 for (ALL_LIST_ELEMENTS(ifp
->connected
, node
, nnode
, c
))
246 bgp_connected_add(bgp
, c
);
248 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, node
, nnode
, nc
))
249 bgp_nbr_connected_add(bgp
, nc
);
251 hook_call(bgp_vrf_status_changed
, bgp
, ifp
);
257 static int bgp_ifp_down(struct interface
*ifp
)
260 struct nbr_connected
*nc
;
261 struct listnode
*node
, *nnode
;
265 bgp
= ifp
->vrf
->info
;
267 bgp_mac_del_mac_entry(ifp
);
269 if (BGP_DEBUG(zebra
, ZEBRA
))
270 zlog_debug("Rx Intf down VRF %u IF %s", ifp
->vrf
->vrf_id
,
276 for (ALL_LIST_ELEMENTS(ifp
->connected
, node
, nnode
, c
))
277 bgp_connected_delete(bgp
, c
);
279 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, node
, nnode
, nc
))
280 bgp_nbr_connected_delete(bgp
, nc
, 1);
282 /* Fast external-failover */
283 if (!CHECK_FLAG(bgp
->flags
, BGP_FLAG_NO_FAST_EXT_FAILOVER
)) {
285 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
286 /* Take down directly connected peers. */
287 if ((peer
->ttl
!= BGP_DEFAULT_TTL
)
288 && (peer
->gtsm_hops
!= BGP_GTSM_HOPS_CONNECTED
))
291 if (ifp
== peer
->nexthop
.ifp
) {
292 BGP_EVENT_ADD(peer
, BGP_Stop
);
293 peer
->last_reset
= PEER_DOWN_IF_DOWN
;
298 hook_call(bgp_vrf_status_changed
, bgp
, ifp
);
299 bgp_nht_ifp_down(ifp
);
304 static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS
)
306 struct connected
*ifc
;
309 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
311 ifc
= zebra_interface_address_read(cmd
, zclient
->ibuf
, vrf_id
);
316 if (bgp_debug_zebra(ifc
->address
))
317 zlog_debug("Rx Intf address add VRF %u IF %s addr %pFX", vrf_id
,
318 ifc
->ifp
->name
, ifc
->address
);
323 if (if_is_operative(ifc
->ifp
)) {
324 bgp_connected_add(bgp
, ifc
);
326 /* If we have learnt of any neighbors on this interface,
327 * check to kick off any BGP interface-based neighbors,
328 * but only if this is a link-local address.
330 if (IN6_IS_ADDR_LINKLOCAL(&ifc
->address
->u
.prefix6
)
331 && !list_isempty(ifc
->ifp
->nbr_connected
))
332 bgp_start_interface_nbrs(bgp
, ifc
->ifp
);
338 static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS
)
340 struct listnode
*node
, *nnode
;
341 struct connected
*ifc
;
346 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
348 ifc
= zebra_interface_address_read(cmd
, zclient
->ibuf
, vrf_id
);
353 if (bgp_debug_zebra(ifc
->address
))
354 zlog_debug("Rx Intf address del VRF %u IF %s addr %pFX", vrf_id
,
355 ifc
->ifp
->name
, ifc
->address
);
357 if (bgp
&& if_is_operative(ifc
->ifp
)) {
358 bgp_connected_delete(bgp
, ifc
);
365 * When we are using the v6 global as part of the peering
366 * nexthops and we are removing it, then we need to
367 * clear the peer data saved for that nexthop and
368 * cause a re-announcement of the route. Since
369 * we do not want the peering to bounce.
371 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
375 if (addr
->family
== AF_INET
)
378 if (!IN6_IS_ADDR_LINKLOCAL(&addr
->u
.prefix6
)
379 && memcmp(&peer
->nexthop
.v6_global
,
380 &addr
->u
.prefix6
, 16)
382 memset(&peer
->nexthop
.v6_global
, 0, 16);
383 FOREACH_AFI_SAFI (afi
, safi
)
384 bgp_announce_route(peer
, afi
, safi
,
390 connected_free(&ifc
);
395 static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS
)
397 struct nbr_connected
*ifc
= NULL
;
400 ifc
= zebra_interface_nbr_address_read(cmd
, zclient
->ibuf
, vrf_id
);
405 if (bgp_debug_zebra(ifc
->address
))
406 zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %pFX",
407 vrf_id
, ifc
->ifp
->name
, ifc
->address
);
409 if (if_is_operative(ifc
->ifp
)) {
410 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
412 bgp_nbr_connected_add(bgp
, ifc
);
418 static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS
)
420 struct nbr_connected
*ifc
= NULL
;
423 ifc
= zebra_interface_nbr_address_read(cmd
, zclient
->ibuf
, vrf_id
);
428 if (bgp_debug_zebra(ifc
->address
))
429 zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %pFX",
430 vrf_id
, ifc
->ifp
->name
, ifc
->address
);
432 if (if_is_operative(ifc
->ifp
)) {
433 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
435 bgp_nbr_connected_delete(bgp
, ifc
, 0);
438 nbr_connected_free(ifc
);
443 /* VRF update for an interface. */
444 static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS
)
446 struct interface
*ifp
;
449 struct nbr_connected
*nc
;
450 struct listnode
*node
, *nnode
;
454 ifp
= zebra_interface_vrf_update_read(zclient
->ibuf
, vrf_id
,
459 if (BGP_DEBUG(zebra
, ZEBRA
) && ifp
)
460 zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id
,
461 ifp
->name
, new_vrf_id
);
463 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
466 for (ALL_LIST_ELEMENTS(ifp
->connected
, node
, nnode
, c
))
467 bgp_connected_delete(bgp
, c
);
469 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, node
, nnode
, nc
))
470 bgp_nbr_connected_delete(bgp
, nc
, 1);
472 /* Fast external-failover */
473 if (!CHECK_FLAG(bgp
->flags
, BGP_FLAG_NO_FAST_EXT_FAILOVER
)) {
474 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
475 if ((peer
->ttl
!= BGP_DEFAULT_TTL
)
477 != BGP_GTSM_HOPS_CONNECTED
))
480 if (ifp
== peer
->nexthop
.ifp
)
481 BGP_EVENT_ADD(peer
, BGP_Stop
);
486 if_update_to_new_vrf(ifp
, new_vrf_id
);
488 bgp
= bgp_lookup_by_vrf_id(new_vrf_id
);
492 for (ALL_LIST_ELEMENTS(ifp
->connected
, node
, nnode
, c
))
493 bgp_connected_add(bgp
, c
);
495 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, node
, nnode
, nc
))
496 bgp_nbr_connected_add(bgp
, nc
);
498 hook_call(bgp_vrf_status_changed
, bgp
, ifp
);
502 /* Zebra route add and delete treatment. */
503 static int zebra_read_route(ZAPI_CALLBACK_ARGS
)
505 enum nexthop_types_t nhtype
;
506 enum blackhole_type bhtype
= BLACKHOLE_UNSPEC
;
507 struct zapi_route api
;
508 union g_addr nexthop
= {};
513 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
517 if (zapi_route_decode(zclient
->ibuf
, &api
) < 0)
520 /* we completely ignore srcdest routes for now. */
521 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
524 /* ignore link-local address. */
525 if (api
.prefix
.family
== AF_INET6
526 && IN6_IS_ADDR_LINKLOCAL(&api
.prefix
.u
.prefix6
))
529 ifindex
= api
.nexthops
[0].ifindex
;
530 nhtype
= api
.nexthops
[0].type
;
532 /* api_nh structure has union of gate and bh_type */
533 if (nhtype
== NEXTHOP_TYPE_BLACKHOLE
) {
534 /* bh_type is only applicable if NEXTHOP_TYPE_BLACKHOLE*/
535 bhtype
= api
.nexthops
[0].bh_type
;
537 nexthop
= api
.nexthops
[0].gate
;
539 add
= (cmd
== ZEBRA_REDISTRIBUTE_ROUTE_ADD
);
542 * The ADD message is actually an UPDATE and there is no
544 * for a prior redistributed route, if any. So, perform an
546 * DEL processing for the same redistributed route from any
550 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++) {
552 bgp_redistribute_delete(bgp
, &api
.prefix
, i
,
556 /* Now perform the add/update. */
557 bgp_redistribute_add(bgp
, &api
.prefix
, &nexthop
, ifindex
,
558 nhtype
, bhtype
, api
.distance
, api
.metric
,
559 api
.type
, api
.instance
, api
.tag
);
561 bgp_redistribute_delete(bgp
, &api
.prefix
, api
.type
,
565 if (bgp_debug_zebra(&api
.prefix
)) {
566 char buf
[PREFIX_STRLEN
];
569 inet_ntop(api
.prefix
.family
, &nexthop
, buf
,
572 "Rx route ADD VRF %u %s[%d] %pFX nexthop %s (type %d if %u) metric %u distance %u tag %" ROUTE_TAG_PRI
,
573 vrf_id
, zebra_route_string(api
.type
),
574 api
.instance
, &api
.prefix
, buf
, nhtype
, ifindex
,
575 api
.metric
, api
.distance
, api
.tag
);
577 zlog_debug("Rx route DEL VRF %u %s[%d] %pFX", vrf_id
,
578 zebra_route_string(api
.type
), api
.instance
,
586 struct interface
*if_lookup_by_ipv4(struct in_addr
*addr
, vrf_id_t vrf_id
)
589 struct listnode
*cnode
;
590 struct interface
*ifp
;
591 struct connected
*connected
;
592 struct prefix_ipv4 p
;
595 vrf
= vrf_lookup_by_id(vrf_id
);
601 p
.prefixlen
= IPV4_MAX_BITLEN
;
603 FOR_ALL_INTERFACES (vrf
, ifp
) {
604 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
605 cp
= connected
->address
;
607 if (cp
->family
== AF_INET
)
608 if (prefix_match(cp
, (struct prefix
*)&p
))
615 struct interface
*if_lookup_by_ipv4_exact(struct in_addr
*addr
, vrf_id_t vrf_id
)
618 struct listnode
*cnode
;
619 struct interface
*ifp
;
620 struct connected
*connected
;
623 vrf
= vrf_lookup_by_id(vrf_id
);
627 FOR_ALL_INTERFACES (vrf
, ifp
) {
628 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
629 cp
= connected
->address
;
631 if (cp
->family
== AF_INET
)
632 if (IPV4_ADDR_SAME(&cp
->u
.prefix4
, addr
))
639 struct interface
*if_lookup_by_ipv6(struct in6_addr
*addr
, ifindex_t ifindex
,
643 struct listnode
*cnode
;
644 struct interface
*ifp
;
645 struct connected
*connected
;
646 struct prefix_ipv6 p
;
649 vrf
= vrf_lookup_by_id(vrf_id
);
655 p
.prefixlen
= IPV6_MAX_BITLEN
;
657 FOR_ALL_INTERFACES (vrf
, ifp
) {
658 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
659 cp
= connected
->address
;
661 if (cp
->family
== AF_INET6
)
662 if (prefix_match(cp
, (struct prefix
*)&p
)) {
663 if (IN6_IS_ADDR_LINKLOCAL(
665 if (ifindex
== ifp
->ifindex
)
675 struct interface
*if_lookup_by_ipv6_exact(struct in6_addr
*addr
,
676 ifindex_t ifindex
, vrf_id_t vrf_id
)
679 struct listnode
*cnode
;
680 struct interface
*ifp
;
681 struct connected
*connected
;
684 vrf
= vrf_lookup_by_id(vrf_id
);
688 FOR_ALL_INTERFACES (vrf
, ifp
) {
689 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
690 cp
= connected
->address
;
692 if (cp
->family
== AF_INET6
)
693 if (IPV6_ADDR_SAME(&cp
->u
.prefix6
, addr
)) {
694 if (IN6_IS_ADDR_LINKLOCAL(
696 if (ifindex
== ifp
->ifindex
)
706 static int if_get_ipv6_global(struct interface
*ifp
, struct in6_addr
*addr
)
708 struct listnode
*cnode
;
709 struct connected
*connected
;
712 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
713 cp
= connected
->address
;
715 if (cp
->family
== AF_INET6
)
716 if (!IN6_IS_ADDR_LINKLOCAL(&cp
->u
.prefix6
)) {
717 memcpy(addr
, &cp
->u
.prefix6
, IPV6_MAX_BYTELEN
);
724 static bool if_get_ipv6_local(struct interface
*ifp
, struct in6_addr
*addr
)
726 struct listnode
*cnode
;
727 struct connected
*connected
;
730 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
731 cp
= connected
->address
;
733 if (cp
->family
== AF_INET6
)
734 if (IN6_IS_ADDR_LINKLOCAL(&cp
->u
.prefix6
)) {
735 memcpy(addr
, &cp
->u
.prefix6
, IPV6_MAX_BYTELEN
);
742 static int if_get_ipv4_address(struct interface
*ifp
, struct in_addr
*addr
)
744 struct listnode
*cnode
;
745 struct connected
*connected
;
748 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
749 cp
= connected
->address
;
750 if ((cp
->family
== AF_INET
)
751 && !ipv4_martian(&(cp
->u
.prefix4
))) {
752 *addr
= cp
->u
.prefix4
;
760 bool bgp_zebra_nexthop_set(union sockunion
*local
, union sockunion
*remote
,
761 struct bgp_nexthop
*nexthop
, struct peer
*peer
)
764 struct interface
*ifp
= NULL
;
765 bool v6_ll_avail
= true;
767 memset(nexthop
, 0, sizeof(struct bgp_nexthop
));
774 if (local
->sa
.sa_family
== AF_INET
) {
775 nexthop
->v4
= local
->sin
.sin_addr
;
777 ifp
= if_lookup_by_name(peer
->update_if
,
780 ifp
= if_lookup_by_ipv4_exact(&local
->sin
.sin_addr
,
783 if (local
->sa
.sa_family
== AF_INET6
) {
784 memcpy(&nexthop
->v6_global
, &local
->sin6
.sin6_addr
, IPV6_MAX_BYTELEN
);
785 if (IN6_IS_ADDR_LINKLOCAL(&local
->sin6
.sin6_addr
)) {
786 if (peer
->conf_if
|| peer
->ifname
)
787 ifp
= if_lookup_by_name(peer
->conf_if
791 else if (peer
->update_if
)
792 ifp
= if_lookup_by_name(peer
->update_if
,
794 } else if (peer
->update_if
)
795 ifp
= if_lookup_by_name(peer
->update_if
,
798 ifp
= if_lookup_by_ipv6_exact(&local
->sin6
.sin6_addr
,
799 local
->sin6
.sin6_scope_id
,
805 * BGP views do not currently get proper data
806 * from zebra( when attached ) to be able to
807 * properly resolve nexthops, so give this
808 * instance type a pass.
810 if (peer
->bgp
->inst_type
== BGP_INSTANCE_TYPE_VIEW
)
813 * If we have no interface data but we have established
814 * some connection w/ zebra than something has gone
815 * terribly terribly wrong here, so say this failed
816 * If we do not any zebra connection then not
817 * having a ifp pointer is ok.
819 return zclient_num_connects
? false : true;
824 /* IPv4 connection, fetch and store IPv6 local address(es) if any. */
825 if (local
->sa
.sa_family
== AF_INET
) {
827 ret
= if_get_ipv6_global(ifp
, &nexthop
->v6_global
);
830 /* There is no global nexthop. Use link-local address as
832 * global and link-local nexthop. In this scenario, the
834 * for interop is that the network admin would use a
836 * specify the global IPv6 nexthop.
839 if_get_ipv6_local(ifp
, &nexthop
->v6_global
);
840 memcpy(&nexthop
->v6_local
, &nexthop
->v6_global
,
844 if_get_ipv6_local(ifp
, &nexthop
->v6_local
);
847 * If we are a v4 connection and we are not doing unnumbered
848 * not having a v6 LL address is ok
850 if (!v6_ll_avail
&& !peer
->conf_if
)
852 if (if_lookup_by_ipv4(&remote
->sin
.sin_addr
, peer
->bgp
->vrf_id
))
853 peer
->shared_network
= 1;
855 peer
->shared_network
= 0;
858 /* IPv6 connection, fetch and store IPv4 local address if any. */
859 if (local
->sa
.sa_family
== AF_INET6
) {
860 struct interface
*direct
= NULL
;
863 ret
= if_get_ipv4_address(ifp
, &nexthop
->v4
);
864 if (!ret
&& peer
->local_id
.s_addr
!= INADDR_ANY
)
865 nexthop
->v4
= peer
->local_id
;
868 if (!IN6_IS_ADDR_LINKLOCAL(&local
->sin6
.sin6_addr
)) {
869 memcpy(&nexthop
->v6_global
, &local
->sin6
.sin6_addr
,
872 /* If directory connected set link-local address. */
873 direct
= if_lookup_by_ipv6(&remote
->sin6
.sin6_addr
,
874 remote
->sin6
.sin6_scope_id
,
877 v6_ll_avail
= if_get_ipv6_local(
878 ifp
, &nexthop
->v6_local
);
880 * It's fine to not have a v6 LL when using
881 * update-source loopback/vrf
883 if (!v6_ll_avail
&& if_is_loopback(ifp
))
887 EC_BGP_NO_LL_ADDRESS_AVAILABLE
,
888 "Interface: %s does not have a v6 LL address associated with it, waiting until one is created for it",
892 /* Link-local address. */
894 ret
= if_get_ipv6_global(ifp
, &nexthop
->v6_global
);
896 /* If there is no global address. Set link-local
898 global. I know this break RFC specification... */
899 /* In this scenario, the expectation for interop is that
901 * network admin would use a route-map to specify the
906 memcpy(&nexthop
->v6_global
,
907 &local
->sin6
.sin6_addr
,
909 /* Always set the link-local address */
910 memcpy(&nexthop
->v6_local
, &local
->sin6
.sin6_addr
,
914 if (IN6_IS_ADDR_LINKLOCAL(&local
->sin6
.sin6_addr
)
915 || if_lookup_by_ipv6(&remote
->sin6
.sin6_addr
,
916 remote
->sin6
.sin6_scope_id
,
918 peer
->shared_network
= 1;
920 peer
->shared_network
= 0;
923 /* KAME stack specific treatment. */
925 if (IN6_IS_ADDR_LINKLOCAL(&nexthop
->v6_global
)
926 && IN6_LINKLOCAL_IFINDEX(nexthop
->v6_global
)) {
927 SET_IN6_LINKLOCAL_IFINDEX(nexthop
->v6_global
, 0);
929 if (IN6_IS_ADDR_LINKLOCAL(&nexthop
->v6_local
)
930 && IN6_LINKLOCAL_IFINDEX(nexthop
->v6_local
)) {
931 SET_IN6_LINKLOCAL_IFINDEX(nexthop
->v6_local
, 0);
935 /* If we have identified the local interface, there is no error for now.
940 static struct in6_addr
*
941 bgp_path_info_to_ipv6_nexthop(struct bgp_path_info
*path
, ifindex_t
*ifindex
)
943 struct in6_addr
*nexthop
= NULL
;
945 /* Only global address nexthop exists. */
946 if (path
->attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_IPV6_GLOBAL
947 || path
->attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_VPNV6_GLOBAL
) {
948 nexthop
= &path
->attr
->mp_nexthop_global
;
949 if (IN6_IS_ADDR_LINKLOCAL(nexthop
))
950 *ifindex
= path
->attr
->nh_ifindex
;
953 /* If both global and link-local address present. */
954 if (path
->attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
955 || path
->attr
->mp_nexthop_len
956 == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL
) {
957 /* Check if route-map is set to prefer global over link-local */
958 if (path
->attr
->mp_nexthop_prefer_global
) {
959 nexthop
= &path
->attr
->mp_nexthop_global
;
960 if (IN6_IS_ADDR_LINKLOCAL(nexthop
))
961 *ifindex
= path
->attr
->nh_ifindex
;
963 /* Workaround for Cisco's nexthop bug. */
964 if (IN6_IS_ADDR_UNSPECIFIED(
965 &path
->attr
->mp_nexthop_global
)
966 && path
->peer
->su_remote
967 && path
->peer
->su_remote
->sa
.sa_family
970 &path
->peer
->su_remote
->sin6
.sin6_addr
;
971 if (IN6_IS_ADDR_LINKLOCAL(nexthop
))
972 *ifindex
= path
->peer
->nexthop
.ifp
975 nexthop
= &path
->attr
->mp_nexthop_local
;
976 if (IN6_IS_ADDR_LINKLOCAL(nexthop
))
977 *ifindex
= path
->attr
->nh_lla_ifindex
;
985 static bool bgp_table_map_apply(struct route_map
*map
, const struct prefix
*p
,
986 struct bgp_path_info
*path
)
988 route_map_result_t ret
;
990 ret
= route_map_apply(map
, p
, path
);
991 bgp_attr_flush(path
->attr
);
993 if (ret
!= RMAP_DENYMATCH
)
996 if (bgp_debug_zebra(p
)) {
997 if (p
->family
== AF_INET
) {
999 "Zebra rmap deny: IPv4 route %pFX nexthop %pI4",
1000 p
, &path
->attr
->nexthop
);
1002 if (p
->family
== AF_INET6
) {
1003 char buf
[2][INET6_ADDRSTRLEN
];
1005 struct in6_addr
*nexthop
;
1007 nexthop
= bgp_path_info_to_ipv6_nexthop(path
, &ifindex
);
1009 "Zebra rmap deny: IPv6 route %pFX nexthop %s",
1011 nexthop
? inet_ntop(AF_INET6
, nexthop
, buf
[1],
1013 : inet_ntop(AF_INET
,
1014 &path
->attr
->nexthop
,
1015 buf
[1], sizeof(buf
[1])));
1021 static struct thread
*bgp_tm_thread_connect
;
1022 static bool bgp_tm_status_connected
;
1023 static bool bgp_tm_chunk_obtained
;
1024 #define BGP_FLOWSPEC_TABLE_CHUNK 100000
1025 static uint32_t bgp_tm_min
, bgp_tm_max
, bgp_tm_chunk_size
;
1026 struct bgp
*bgp_tm_bgp
;
1028 static void bgp_zebra_tm_connect(struct thread
*t
)
1030 struct zclient
*zclient
;
1031 int delay
= 10, ret
= 0;
1033 zclient
= THREAD_ARG(t
);
1034 if (bgp_tm_status_connected
&& zclient
->sock
> 0)
1037 bgp_tm_status_connected
= false;
1038 ret
= tm_table_manager_connect(zclient
);
1041 zlog_info("Error connecting to table manager!");
1042 bgp_tm_status_connected
= false;
1044 if (!bgp_tm_status_connected
)
1045 zlog_debug("Connecting to table manager. Success");
1046 bgp_tm_status_connected
= true;
1047 if (!bgp_tm_chunk_obtained
) {
1048 if (bgp_zebra_get_table_range(bgp_tm_chunk_size
,
1050 &bgp_tm_max
) >= 0) {
1051 bgp_tm_chunk_obtained
= true;
1052 /* parse non installed entries */
1053 bgp_zebra_announce_table(bgp_tm_bgp
, AFI_IP
, SAFI_FLOWSPEC
);
1057 thread_add_timer(bm
->master
, bgp_zebra_tm_connect
, zclient
, delay
,
1058 &bgp_tm_thread_connect
);
1061 bool bgp_zebra_tm_chunk_obtained(void)
1063 return bgp_tm_chunk_obtained
;
1066 uint32_t bgp_zebra_tm_get_id(void)
1068 static int table_id
;
1070 if (!bgp_tm_chunk_obtained
)
1072 return bgp_tm_min
++;
1075 void bgp_zebra_init_tm_connect(struct bgp
*bgp
)
1079 /* if already set, do nothing
1081 if (bgp_tm_thread_connect
!= NULL
)
1083 bgp_tm_status_connected
= false;
1084 bgp_tm_chunk_obtained
= false;
1085 bgp_tm_min
= bgp_tm_max
= 0;
1086 bgp_tm_chunk_size
= BGP_FLOWSPEC_TABLE_CHUNK
;
1088 thread_add_timer(bm
->master
, bgp_zebra_tm_connect
, zclient
, delay
,
1089 &bgp_tm_thread_connect
);
1092 int bgp_zebra_get_table_range(uint32_t chunk_size
,
1093 uint32_t *start
, uint32_t *end
)
1097 if (!bgp_tm_status_connected
)
1099 ret
= tm_get_table_chunk(zclient
, chunk_size
, start
, end
);
1101 flog_err(EC_BGP_TABLE_CHUNK
,
1102 "BGP: Error getting table chunk %u", chunk_size
);
1105 zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]",
1106 chunk_size
, *start
, *end
);
1110 static bool update_ipv4nh_for_route_install(int nh_othervrf
, struct bgp
*nh_bgp
,
1111 struct in_addr
*nexthop
,
1112 struct attr
*attr
, bool is_evpn
,
1113 struct zapi_nexthop
*api_nh
)
1115 api_nh
->gate
.ipv4
= *nexthop
;
1116 api_nh
->vrf_id
= nh_bgp
->vrf_id
;
1118 /* Need to set fields appropriately for EVPN routes imported into
1119 * a VRF (which are programmed as onlink on l3-vni SVI) as well as
1120 * connected routes leaked into a VRF.
1122 if (attr
->nh_type
== NEXTHOP_TYPE_BLACKHOLE
) {
1123 api_nh
->type
= attr
->nh_type
;
1124 api_nh
->bh_type
= attr
->bh_type
;
1125 } else if (is_evpn
) {
1127 * If the nexthop is EVPN overlay index gateway IP,
1128 * treat the nexthop as NEXTHOP_TYPE_IPV4
1129 * Else, mark the nexthop as onlink.
1131 if (attr
->evpn_overlay
.type
== OVERLAY_INDEX_GATEWAY_IP
)
1132 api_nh
->type
= NEXTHOP_TYPE_IPV4
;
1134 api_nh
->type
= NEXTHOP_TYPE_IPV4_IFINDEX
;
1135 SET_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_ONLINK
);
1136 api_nh
->ifindex
= nh_bgp
->l3vni_svi_ifindex
;
1138 } else if (nh_othervrf
&& api_nh
->gate
.ipv4
.s_addr
== INADDR_ANY
) {
1139 api_nh
->type
= NEXTHOP_TYPE_IFINDEX
;
1140 api_nh
->ifindex
= attr
->nh_ifindex
;
1142 api_nh
->type
= NEXTHOP_TYPE_IPV4
;
1147 static bool update_ipv6nh_for_route_install(int nh_othervrf
, struct bgp
*nh_bgp
,
1148 struct in6_addr
*nexthop
,
1150 struct bgp_path_info
*pi
,
1151 struct bgp_path_info
*best_pi
,
1153 struct zapi_nexthop
*api_nh
)
1158 api_nh
->vrf_id
= nh_bgp
->vrf_id
;
1160 if (attr
->nh_type
== NEXTHOP_TYPE_BLACKHOLE
) {
1161 api_nh
->type
= attr
->nh_type
;
1162 api_nh
->bh_type
= attr
->bh_type
;
1163 } else if (is_evpn
) {
1165 * If the nexthop is EVPN overlay index gateway IP,
1166 * treat the nexthop as NEXTHOP_TYPE_IPV4
1167 * Else, mark the nexthop as onlink.
1169 if (attr
->evpn_overlay
.type
== OVERLAY_INDEX_GATEWAY_IP
)
1170 api_nh
->type
= NEXTHOP_TYPE_IPV6
;
1172 api_nh
->type
= NEXTHOP_TYPE_IPV6_IFINDEX
;
1173 SET_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_ONLINK
);
1174 api_nh
->ifindex
= nh_bgp
->l3vni_svi_ifindex
;
1176 } else if (nh_othervrf
) {
1177 if (IN6_IS_ADDR_UNSPECIFIED(nexthop
)) {
1178 api_nh
->type
= NEXTHOP_TYPE_IFINDEX
;
1179 api_nh
->ifindex
= attr
->nh_ifindex
;
1180 } else if (IN6_IS_ADDR_LINKLOCAL(nexthop
)) {
1183 api_nh
->type
= NEXTHOP_TYPE_IPV6_IFINDEX
;
1184 api_nh
->ifindex
= ifindex
;
1186 api_nh
->type
= NEXTHOP_TYPE_IPV6
;
1187 api_nh
->ifindex
= 0;
1190 if (IN6_IS_ADDR_LINKLOCAL(nexthop
)) {
1192 && attr
->mp_nexthop_len
1193 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
)
1194 if (pi
->peer
->nexthop
.ifp
)
1196 pi
->peer
->nexthop
.ifp
->ifindex
;
1198 if (pi
->peer
->conf_if
)
1199 ifindex
= pi
->peer
->ifp
->ifindex
;
1200 else if (pi
->peer
->ifname
)
1201 ifindex
= ifname2ifindex(
1203 pi
->peer
->bgp
->vrf_id
);
1204 else if (pi
->peer
->nexthop
.ifp
)
1206 pi
->peer
->nexthop
.ifp
->ifindex
;
1211 api_nh
->type
= NEXTHOP_TYPE_IPV6_IFINDEX
;
1212 api_nh
->ifindex
= ifindex
;
1214 api_nh
->type
= NEXTHOP_TYPE_IPV6
;
1215 api_nh
->ifindex
= 0;
1218 /* api_nh structure has union of gate and bh_type */
1219 if (nexthop
&& api_nh
->type
!= NEXTHOP_TYPE_BLACKHOLE
)
1220 api_nh
->gate
.ipv6
= *nexthop
;
1225 static bool bgp_zebra_use_nhop_weighted(struct bgp
*bgp
, struct attr
*attr
,
1226 uint64_t tot_bw
, uint32_t *nh_weight
)
1232 /* zero link-bandwidth and link-bandwidth not present are treated
1233 * as the same situation.
1236 /* the only situations should be if we're either told
1237 * to skip or use default weight.
1239 if (bgp
->lb_handling
== BGP_LINK_BW_SKIP_MISSING
)
1241 *nh_weight
= BGP_ZEBRA_DEFAULT_NHOP_WEIGHT
;
1243 tmp
= (uint64_t)bw
* 100;
1244 *nh_weight
= ((uint32_t)(tmp
/ tot_bw
));
1250 void bgp_zebra_announce(struct bgp_dest
*dest
, const struct prefix
*p
,
1251 struct bgp_path_info
*info
, struct bgp
*bgp
, afi_t afi
,
1254 struct zapi_route api
= { 0 };
1255 struct zapi_nexthop
*api_nh
;
1257 unsigned int valid_nh_count
= 0;
1258 bool allow_recursion
= false;
1261 struct bgp_path_info
*mpinfo
;
1262 struct bgp
*bgp_orig
;
1264 struct attr local_attr
;
1265 struct bgp_path_info local_info
;
1266 struct bgp_path_info
*mpinfo_cp
= &local_info
;
1269 struct bgp_sid_info
*sid_info
;
1270 int nh_othervrf
= 0;
1272 bool nh_updated
= false;
1274 uint64_t cum_bw
= 0;
1275 uint32_t nhg_id
= 0;
1278 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1279 * know of this instance.
1281 if (!bgp_install_info_to_zebra(bgp
))
1284 if (bgp
->main_zebra_update_hold
)
1287 if (safi
== SAFI_FLOWSPEC
) {
1288 bgp_pbr_update_entry(bgp
, bgp_dest_get_prefix(dest
), info
, afi
,
1294 * vrf leaking support (will have only one nexthop)
1296 if (info
->extra
&& info
->extra
->bgp_orig
)
1299 /* Make Zebra API structure. */
1300 api
.vrf_id
= bgp
->vrf_id
;
1301 api
.type
= ZEBRA_ROUTE_BGP
;
1304 SET_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
);
1308 if (info
->type
== ZEBRA_ROUTE_BGP
1309 && info
->sub_type
== BGP_ROUTE_IMPORTED
) {
1311 /* Obtain peer from parent */
1312 if (info
->extra
&& info
->extra
->parent
)
1313 peer
= ((struct bgp_path_info
*)(info
->extra
->parent
))
1317 tag
= info
->attr
->tag
;
1319 /* If the route's source is EVPN, flag as such. */
1320 is_evpn
= is_route_parent_evpn(info
);
1322 SET_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
);
1324 if (peer
->sort
== BGP_PEER_IBGP
|| peer
->sort
== BGP_PEER_CONFED
1325 || info
->sub_type
== BGP_ROUTE_AGGREGATE
) {
1326 SET_FLAG(api
.flags
, ZEBRA_FLAG_IBGP
);
1327 SET_FLAG(api
.flags
, ZEBRA_FLAG_ALLOW_RECURSION
);
1330 if ((peer
->sort
== BGP_PEER_EBGP
&& peer
->ttl
!= BGP_DEFAULT_TTL
)
1331 || CHECK_FLAG(peer
->flags
, PEER_FLAG_DISABLE_CONNECTED_CHECK
)
1332 || CHECK_FLAG(bgp
->flags
, BGP_FLAG_DISABLE_NH_CONNECTED_CHK
))
1334 allow_recursion
= true;
1336 if (info
->attr
->rmap_table_id
) {
1337 SET_FLAG(api
.message
, ZAPI_MESSAGE_TABLEID
);
1338 api
.tableid
= info
->attr
->rmap_table_id
;
1341 if (CHECK_FLAG(info
->attr
->flag
, ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR
)))
1342 SET_FLAG(api
.message
, ZAPI_MESSAGE_SRTE
);
1344 /* Metric is currently based on the best-path only */
1345 metric
= info
->attr
->med
;
1347 /* Determine if we're doing weighted ECMP or not */
1348 do_wt_ecmp
= bgp_path_info_mpath_chkwtd(bgp
, info
);
1350 cum_bw
= bgp_path_info_mpath_cumbw(info
);
1352 /* EVPN MAC-IP routes are installed with a L3 NHG id */
1353 if (bgp_evpn_path_es_use_nhg(bgp
, info
, &nhg_id
)) {
1357 SET_FLAG(api
.message
, ZAPI_MESSAGE_NHG
);
1362 for (; mpinfo
; mpinfo
= bgp_path_info_mpath_next(mpinfo
)) {
1365 if (valid_nh_count
>= multipath_num
)
1368 *mpinfo_cp
= *mpinfo
;
1371 /* Get nexthop address-family */
1372 if (p
->family
== AF_INET
1373 && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp
->attr
))
1374 nh_family
= AF_INET
;
1375 else if (p
->family
== AF_INET6
1376 || (p
->family
== AF_INET
1377 && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp
->attr
)))
1378 nh_family
= AF_INET6
;
1382 /* If processing for weighted ECMP, determine the next hop's
1383 * weight. Based on user setting, we may skip the next hop
1384 * in some situations.
1387 if (!bgp_zebra_use_nhop_weighted(bgp
, mpinfo
->attr
,
1388 cum_bw
, &nh_weight
))
1391 api_nh
= &api
.nexthops
[valid_nh_count
];
1393 if (CHECK_FLAG(info
->attr
->flag
,
1394 ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR
)))
1395 api_nh
->srte_color
= info
->attr
->srte_color
;
1397 if (bgp_debug_zebra(&api
.prefix
)) {
1398 if (mpinfo
->extra
) {
1399 zlog_debug("%s: p=%pFX, bgp_is_valid_label: %d",
1402 &mpinfo
->extra
->label
[0]));
1405 "%s: p=%pFX, extra is NULL, no label",
1410 if (bgp
->table_map
[afi
][safi
].name
) {
1411 /* Copy info and attributes, so the route-map
1412 apply doesn't modify the BGP route info. */
1413 local_attr
= *mpinfo
->attr
;
1414 mpinfo_cp
->attr
= &local_attr
;
1415 if (!bgp_table_map_apply(bgp
->table_map
[afi
][safi
].map
,
1419 /* metric/tag is only allowed to be
1420 * overridden on 1st nexthop */
1421 if (mpinfo
== info
) {
1422 metric
= mpinfo_cp
->attr
->med
;
1423 tag
= mpinfo_cp
->attr
->tag
;
1427 BGP_ORIGINAL_UPDATE(bgp_orig
, mpinfo
, bgp
);
1429 if (nh_family
== AF_INET
) {
1430 nh_updated
= update_ipv4nh_for_route_install(
1431 nh_othervrf
, bgp_orig
,
1432 &mpinfo_cp
->attr
->nexthop
, mpinfo_cp
->attr
,
1435 ifindex_t ifindex
= IFINDEX_INTERNAL
;
1436 struct in6_addr
*nexthop
;
1438 nexthop
= bgp_path_info_to_ipv6_nexthop(mpinfo_cp
,
1442 nh_updated
= update_ipv4nh_for_route_install(
1443 nh_othervrf
, bgp_orig
,
1444 &mpinfo_cp
->attr
->nexthop
,
1445 mpinfo_cp
->attr
, is_evpn
, api_nh
);
1447 nh_updated
= update_ipv6nh_for_route_install(
1448 nh_othervrf
, bgp_orig
, nexthop
, ifindex
,
1449 mpinfo
, info
, is_evpn
, api_nh
);
1452 /* Did we get proper nexthop info to update zebra? */
1456 /* Allow recursion if it is a multipath group with both
1457 * eBGP and iBGP paths.
1459 if (!allow_recursion
1460 && CHECK_FLAG(bgp
->flags
, BGP_FLAG_PEERTYPE_MULTIPATH_RELAX
)
1461 && (mpinfo
->peer
->sort
== BGP_PEER_IBGP
1462 || mpinfo
->peer
->sort
== BGP_PEER_CONFED
))
1463 allow_recursion
= true;
1466 && bgp_is_valid_label(&mpinfo
->extra
->label
[0])
1467 && !CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
)) {
1468 label
= label_pton(&mpinfo
->extra
->label
[0]);
1470 SET_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_LABEL
);
1472 api_nh
->label_num
= 1;
1473 api_nh
->labels
[0] = label
;
1477 && mpinfo
->attr
->evpn_overlay
.type
1478 != OVERLAY_INDEX_GATEWAY_IP
)
1479 memcpy(&api_nh
->rmac
, &(mpinfo
->attr
->rmac
),
1480 sizeof(struct ethaddr
));
1482 api_nh
->weight
= nh_weight
;
1484 if (mpinfo
->extra
&& !sid_zero(&mpinfo
->extra
->sid
[0].sid
)
1485 && !CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
)) {
1486 sid_info
= &mpinfo
->extra
->sid
[0];
1488 memcpy(&api_nh
->seg6_segs
, &sid_info
->sid
,
1489 sizeof(api_nh
->seg6_segs
));
1491 if (sid_info
->transposition_len
!= 0) {
1492 if (!bgp_is_valid_label(
1493 &mpinfo
->extra
->label
[0]))
1496 label
= label_pton(&mpinfo
->extra
->label
[0]);
1497 transpose_sid(&api_nh
->seg6_segs
, label
,
1498 sid_info
->transposition_offset
,
1499 sid_info
->transposition_len
);
1502 SET_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_SEG6
);
1508 is_add
= (valid_nh_count
|| nhg_id
) ? true : false;
1510 if (is_add
&& CHECK_FLAG(bm
->flags
, BM_FLAG_SEND_EXTRA_DATA_TO_ZEBRA
)) {
1511 struct bgp_zebra_opaque bzo
= {};
1512 const char *reason
=
1513 bgp_path_selection_reason2str(dest
->reason
);
1515 strlcpy(bzo
.aspath
, info
->attr
->aspath
->str
,
1516 sizeof(bzo
.aspath
));
1518 if (info
->attr
->flag
& ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES
))
1519 strlcpy(bzo
.community
,
1520 bgp_attr_get_community(info
->attr
)->str
,
1521 sizeof(bzo
.community
));
1523 if (info
->attr
->flag
1524 & ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES
))
1525 strlcpy(bzo
.lcommunity
,
1526 bgp_attr_get_lcommunity(info
->attr
)->str
,
1527 sizeof(bzo
.lcommunity
));
1529 strlcpy(bzo
.selection_reason
, reason
,
1530 sizeof(bzo
.selection_reason
));
1532 SET_FLAG(api
.message
, ZAPI_MESSAGE_OPAQUE
);
1533 api
.opaque
.length
= MIN(sizeof(struct bgp_zebra_opaque
),
1534 ZAPI_MESSAGE_OPAQUE_LENGTH
);
1535 memcpy(api
.opaque
.data
, &bzo
, api
.opaque
.length
);
1538 if (allow_recursion
)
1539 SET_FLAG(api
.flags
, ZEBRA_FLAG_ALLOW_RECURSION
);
1542 * When we create an aggregate route we must also
1543 * install a Null0 route in the RIB, so overwrite
1544 * what was written into api with a blackhole route
1546 if (info
->sub_type
== BGP_ROUTE_AGGREGATE
)
1547 zapi_route_set_blackhole(&api
, BLACKHOLE_NULL
);
1549 api
.nexthop_num
= valid_nh_count
;
1551 SET_FLAG(api
.message
, ZAPI_MESSAGE_METRIC
);
1552 api
.metric
= metric
;
1555 SET_FLAG(api
.message
, ZAPI_MESSAGE_TAG
);
1559 distance
= bgp_distance_apply(p
, info
, afi
, safi
, bgp
);
1561 SET_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
);
1562 api
.distance
= distance
;
1565 if (bgp_debug_zebra(p
)) {
1566 char nh_buf
[INET6_ADDRSTRLEN
];
1567 char eth_buf
[ETHER_ADDR_STRLEN
+ 7] = {'\0'};
1568 char buf1
[ETHER_ADDR_STRLEN
];
1575 "Tx route %s VRF %u %pFX metric %u tag %" ROUTE_TAG_PRI
1577 valid_nh_count
? "add" : "delete", bgp
->vrf_id
,
1578 &api
.prefix
, api
.metric
, api
.tag
, api
.nexthop_num
,
1580 for (i
= 0; i
< api
.nexthop_num
; i
++) {
1581 api_nh
= &api
.nexthops
[i
];
1583 switch (api_nh
->type
) {
1584 case NEXTHOP_TYPE_IFINDEX
:
1587 case NEXTHOP_TYPE_IPV4
:
1588 case NEXTHOP_TYPE_IPV4_IFINDEX
:
1589 nh_family
= AF_INET
;
1590 inet_ntop(nh_family
, &api_nh
->gate
, nh_buf
,
1593 case NEXTHOP_TYPE_IPV6
:
1594 case NEXTHOP_TYPE_IPV6_IFINDEX
:
1595 nh_family
= AF_INET6
;
1596 inet_ntop(nh_family
, &api_nh
->gate
, nh_buf
,
1599 case NEXTHOP_TYPE_BLACKHOLE
:
1600 strlcpy(nh_buf
, "blackhole", sizeof(nh_buf
));
1603 /* Note: add new nexthop case */
1608 label_buf
[0] = '\0';
1611 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_LABEL
)
1612 && !CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
))
1613 snprintf(label_buf
, sizeof(label_buf
),
1614 "label %u", api_nh
->labels
[0]);
1615 if (CHECK_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_SEG6
)
1616 && !CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
)) {
1617 inet_ntop(AF_INET6
, &api_nh
->seg6_segs
,
1618 sid_buf
, sizeof(sid_buf
));
1619 snprintf(segs_buf
, sizeof(segs_buf
), "segs %s",
1622 if (CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
)
1623 && !is_zero_mac(&api_nh
->rmac
))
1624 snprintf(eth_buf
, sizeof(eth_buf
), " RMAC %s",
1625 prefix_mac2str(&api_nh
->rmac
,
1626 buf1
, sizeof(buf1
)));
1627 zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s %s",
1628 i
+ 1, nh_buf
, api_nh
->ifindex
,
1629 api_nh
->vrf_id
, api_nh
->weight
,
1630 label_buf
, segs_buf
, eth_buf
);
1633 int recursion_flag
= 0;
1635 if (CHECK_FLAG(api
.flags
, ZEBRA_FLAG_ALLOW_RECURSION
))
1638 zlog_debug("%s: %pFX: announcing to zebra (recursion %sset)",
1639 __func__
, p
, (recursion_flag
? "" : "NOT "));
1641 zclient_route_send(is_add
? ZEBRA_ROUTE_ADD
: ZEBRA_ROUTE_DELETE
,
1645 /* Announce all routes of a table to zebra */
1646 void bgp_zebra_announce_table(struct bgp
*bgp
, afi_t afi
, safi_t safi
)
1648 struct bgp_dest
*dest
;
1649 struct bgp_table
*table
;
1650 struct bgp_path_info
*pi
;
1652 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1653 * know of this instance.
1655 if (!bgp_install_info_to_zebra(bgp
))
1658 table
= bgp
->rib
[afi
][safi
];
1662 for (dest
= bgp_table_top(table
); dest
; dest
= bgp_route_next(dest
))
1663 for (pi
= bgp_dest_get_bgp_path_info(dest
); pi
; pi
= pi
->next
)
1664 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
) &&
1666 (pi
->type
== ZEBRA_ROUTE_BGP
1667 && (pi
->sub_type
== BGP_ROUTE_NORMAL
1668 || pi
->sub_type
== BGP_ROUTE_IMPORTED
)))
1670 bgp_zebra_announce(dest
,
1671 bgp_dest_get_prefix(dest
),
1672 pi
, bgp
, afi
, safi
);
1675 /* Announce routes of any bgp subtype of a table to zebra */
1676 void bgp_zebra_announce_table_all_subtypes(struct bgp
*bgp
, afi_t afi
,
1679 struct bgp_dest
*dest
;
1680 struct bgp_table
*table
;
1681 struct bgp_path_info
*pi
;
1683 if (!bgp_install_info_to_zebra(bgp
))
1686 table
= bgp
->rib
[afi
][safi
];
1690 for (dest
= bgp_table_top(table
); dest
; dest
= bgp_route_next(dest
))
1691 for (pi
= bgp_dest_get_bgp_path_info(dest
); pi
; pi
= pi
->next
)
1692 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
) &&
1693 pi
->type
== ZEBRA_ROUTE_BGP
)
1694 bgp_zebra_announce(dest
,
1695 bgp_dest_get_prefix(dest
),
1696 pi
, bgp
, afi
, safi
);
1699 void bgp_zebra_withdraw(const struct prefix
*p
, struct bgp_path_info
*info
,
1700 struct bgp
*bgp
, safi_t safi
)
1702 struct zapi_route api
;
1705 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1706 * know of this instance.
1708 if (!bgp_install_info_to_zebra(bgp
))
1711 if (safi
== SAFI_FLOWSPEC
) {
1713 bgp_pbr_update_entry(peer
->bgp
, p
, info
, AFI_IP
, safi
, false);
1717 memset(&api
, 0, sizeof(api
));
1718 api
.vrf_id
= bgp
->vrf_id
;
1719 api
.type
= ZEBRA_ROUTE_BGP
;
1723 if (info
->attr
->rmap_table_id
) {
1724 SET_FLAG(api
.message
, ZAPI_MESSAGE_TABLEID
);
1725 api
.tableid
= info
->attr
->rmap_table_id
;
1728 /* If the route's source is EVPN, flag as such. */
1729 if (is_route_parent_evpn(info
))
1730 SET_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
);
1732 if (bgp_debug_zebra(p
))
1733 zlog_debug("Tx route delete VRF %u %pFX", bgp
->vrf_id
,
1736 zclient_route_send(ZEBRA_ROUTE_DELETE
, zclient
, &api
);
1739 /* Withdraw all entries in a BGP instances RIB table from Zebra */
1740 void bgp_zebra_withdraw_table_all_subtypes(struct bgp
*bgp
, afi_t afi
, safi_t safi
)
1742 struct bgp_dest
*dest
;
1743 struct bgp_table
*table
;
1744 struct bgp_path_info
*pi
;
1746 if (!bgp_install_info_to_zebra(bgp
))
1749 table
= bgp
->rib
[afi
][safi
];
1753 for (dest
= bgp_table_top(table
); dest
; dest
= bgp_route_next(dest
)) {
1754 for (pi
= bgp_dest_get_bgp_path_info(dest
); pi
; pi
= pi
->next
) {
1755 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
)
1756 && (pi
->type
== ZEBRA_ROUTE_BGP
))
1757 bgp_zebra_withdraw(bgp_dest_get_prefix(dest
),
1763 struct bgp_redist
*bgp_redist_lookup(struct bgp
*bgp
, afi_t afi
, uint8_t type
,
1764 unsigned short instance
)
1766 struct list
*red_list
;
1767 struct listnode
*node
;
1768 struct bgp_redist
*red
;
1770 red_list
= bgp
->redist
[afi
][type
];
1774 for (ALL_LIST_ELEMENTS_RO(red_list
, node
, red
))
1775 if (red
->instance
== instance
)
1781 struct bgp_redist
*bgp_redist_add(struct bgp
*bgp
, afi_t afi
, uint8_t type
,
1782 unsigned short instance
)
1784 struct list
*red_list
;
1785 struct bgp_redist
*red
;
1787 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
1791 if (!bgp
->redist
[afi
][type
])
1792 bgp
->redist
[afi
][type
] = list_new();
1794 red_list
= bgp
->redist
[afi
][type
];
1795 red
= XCALLOC(MTYPE_BGP_REDIST
, sizeof(struct bgp_redist
));
1796 red
->instance
= instance
;
1798 listnode_add(red_list
, red
);
1803 static void bgp_redist_del(struct bgp
*bgp
, afi_t afi
, uint8_t type
,
1804 unsigned short instance
)
1806 struct bgp_redist
*red
;
1808 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
1811 listnode_delete(bgp
->redist
[afi
][type
], red
);
1812 XFREE(MTYPE_BGP_REDIST
, red
);
1813 if (!bgp
->redist
[afi
][type
]->count
)
1814 list_delete(&bgp
->redist
[afi
][type
]);
1818 /* Other routes redistribution into BGP. */
1819 int bgp_redistribute_set(struct bgp
*bgp
, afi_t afi
, int type
,
1820 unsigned short instance
, bool changed
)
1822 /* If redistribute options are changed call
1823 * bgp_redistribute_unreg() to reset the option and withdraw
1827 bgp_redistribute_unreg(bgp
, afi
, type
, instance
);
1829 /* Return if already redistribute flag is set. */
1831 if (redist_check_instance(&zclient
->mi_redist
[afi
][type
],
1835 redist_add_instance(&zclient
->mi_redist
[afi
][type
], instance
);
1837 if (vrf_bitmap_check(zclient
->redist
[afi
][type
], bgp
->vrf_id
))
1840 #ifdef ENABLE_BGP_VNC
1841 if (EVPN_ENABLED(bgp
) && type
== ZEBRA_ROUTE_VNC_DIRECT
) {
1842 vnc_export_bgp_enable(
1843 bgp
, afi
); /* only enables if mode bits cfg'd */
1847 vrf_bitmap_set(zclient
->redist
[afi
][type
], bgp
->vrf_id
);
1851 * Don't try to register if we're not connected to Zebra or Zebra
1852 * doesn't know of this instance.
1854 * When we come up later well resend if needed.
1856 if (!bgp_install_info_to_zebra(bgp
))
1859 if (BGP_DEBUG(zebra
, ZEBRA
))
1860 zlog_debug("Tx redistribute add VRF %u afi %d %s %d",
1861 bgp
->vrf_id
, afi
, zebra_route_string(type
),
1864 /* Send distribute add message to zebra. */
1865 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD
, zclient
, afi
, type
,
1866 instance
, bgp
->vrf_id
);
1871 int bgp_redistribute_resend(struct bgp
*bgp
, afi_t afi
, int type
,
1872 unsigned short instance
)
1874 /* Don't try to send if we're not connected to Zebra or Zebra doesn't
1875 * know of this instance.
1877 if (!bgp_install_info_to_zebra(bgp
))
1880 if (BGP_DEBUG(zebra
, ZEBRA
))
1881 zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d",
1882 bgp
->vrf_id
, afi
, zebra_route_string(type
),
1885 /* Send distribute add message to zebra. */
1886 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE
, zclient
, afi
, type
,
1887 instance
, bgp
->vrf_id
);
1888 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD
, zclient
, afi
, type
,
1889 instance
, bgp
->vrf_id
);
1894 /* Redistribute with route-map specification. */
1895 bool bgp_redistribute_rmap_set(struct bgp_redist
*red
, const char *name
,
1896 struct route_map
*route_map
)
1898 if (red
->rmap
.name
&& (strcmp(red
->rmap
.name
, name
) == 0))
1901 XFREE(MTYPE_ROUTE_MAP_NAME
, red
->rmap
.name
);
1902 /* Decrement the count for existing routemap and
1903 * increment the count for new route map.
1905 route_map_counter_decrement(red
->rmap
.map
);
1906 red
->rmap
.name
= XSTRDUP(MTYPE_ROUTE_MAP_NAME
, name
);
1907 red
->rmap
.map
= route_map
;
1908 route_map_counter_increment(red
->rmap
.map
);
1913 /* Redistribute with metric specification. */
1914 bool bgp_redistribute_metric_set(struct bgp
*bgp
, struct bgp_redist
*red
,
1915 afi_t afi
, int type
, uint32_t metric
)
1917 struct bgp_dest
*dest
;
1918 struct bgp_path_info
*pi
;
1920 if (red
->redist_metric_flag
&& red
->redist_metric
== metric
)
1923 red
->redist_metric_flag
= 1;
1924 red
->redist_metric
= metric
;
1926 for (dest
= bgp_table_top(bgp
->rib
[afi
][SAFI_UNICAST
]); dest
;
1927 dest
= bgp_route_next(dest
)) {
1928 for (pi
= bgp_dest_get_bgp_path_info(dest
); pi
; pi
= pi
->next
) {
1929 if (pi
->sub_type
== BGP_ROUTE_REDISTRIBUTE
1931 && pi
->instance
== red
->instance
) {
1932 struct attr
*old_attr
;
1933 struct attr new_attr
;
1935 new_attr
= *pi
->attr
;
1936 new_attr
.med
= red
->redist_metric
;
1937 old_attr
= pi
->attr
;
1938 pi
->attr
= bgp_attr_intern(&new_attr
);
1939 bgp_attr_unintern(&old_attr
);
1941 bgp_path_info_set_flag(dest
, pi
,
1942 BGP_PATH_ATTR_CHANGED
);
1943 bgp_process(bgp
, dest
, afi
, SAFI_UNICAST
);
1951 /* Unset redistribution. */
1952 int bgp_redistribute_unreg(struct bgp
*bgp
, afi_t afi
, int type
,
1953 unsigned short instance
)
1955 struct bgp_redist
*red
;
1957 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
1961 /* Return if zebra connection is disabled. */
1963 if (!redist_check_instance(&zclient
->mi_redist
[afi
][type
],
1966 redist_del_instance(&zclient
->mi_redist
[afi
][type
], instance
);
1968 if (!vrf_bitmap_check(zclient
->redist
[afi
][type
], bgp
->vrf_id
))
1970 vrf_bitmap_unset(zclient
->redist
[afi
][type
], bgp
->vrf_id
);
1973 if (bgp_install_info_to_zebra(bgp
)) {
1974 /* Send distribute delete message to zebra. */
1975 if (BGP_DEBUG(zebra
, ZEBRA
))
1976 zlog_debug("Tx redistribute del VRF %u afi %d %s %d",
1977 bgp
->vrf_id
, afi
, zebra_route_string(type
),
1979 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE
, zclient
, afi
,
1980 type
, instance
, bgp
->vrf_id
);
1983 /* Withdraw redistributed routes from current BGP's routing table. */
1984 bgp_redistribute_withdraw(bgp
, afi
, type
, instance
);
1989 /* Unset redistribution. */
1990 int bgp_redistribute_unset(struct bgp
*bgp
, afi_t afi
, int type
,
1991 unsigned short instance
)
1993 struct bgp_redist
*red
;
1996 * vnc and vpn->vrf checks must be before red check because
1997 * they operate within bgpd irrespective of zebra connection
1998 * status. red lookup fails if there is no zebra connection.
2000 #ifdef ENABLE_BGP_VNC
2001 if (EVPN_ENABLED(bgp
) && type
== ZEBRA_ROUTE_VNC_DIRECT
) {
2002 vnc_export_bgp_disable(bgp
, afi
);
2006 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
2010 bgp_redistribute_unreg(bgp
, afi
, type
, instance
);
2012 /* Unset route-map. */
2013 XFREE(MTYPE_ROUTE_MAP_NAME
, red
->rmap
.name
);
2014 route_map_counter_decrement(red
->rmap
.map
);
2015 red
->rmap
.map
= NULL
;
2018 red
->redist_metric_flag
= 0;
2019 red
->redist_metric
= 0;
2021 bgp_redist_del(bgp
, afi
, type
, instance
);
2026 void bgp_redistribute_redo(struct bgp
*bgp
)
2030 struct list
*red_list
;
2031 struct listnode
*node
;
2032 struct bgp_redist
*red
;
2034 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
2035 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++) {
2037 red_list
= bgp
->redist
[afi
][i
];
2041 for (ALL_LIST_ELEMENTS_RO(red_list
, node
, red
)) {
2042 bgp_redistribute_resend(bgp
, afi
, i
,
2049 void bgp_zclient_reset(void)
2051 zclient_reset(zclient
);
2054 /* Register this instance with Zebra. Invoked upon connect (for
2055 * default instance) and when other VRFs are learnt (or created and
2058 void bgp_zebra_instance_register(struct bgp
*bgp
)
2060 /* Don't try to register if we're not connected to Zebra */
2061 if (!zclient
|| zclient
->sock
< 0)
2064 if (BGP_DEBUG(zebra
, ZEBRA
))
2065 zlog_debug("Registering VRF %u", bgp
->vrf_id
);
2067 /* Register for router-id, interfaces, redistributed routes. */
2068 zclient_send_reg_requests(zclient
, bgp
->vrf_id
);
2070 /* For EVPN instance, register to learn about VNIs, if appropriate. */
2071 if (bgp
->advertise_all_vni
)
2072 bgp_zebra_advertise_all_vni(bgp
, 1);
2074 bgp_nht_register_nexthops(bgp
);
2077 /* Deregister this instance with Zebra. Invoked upon the instance
2078 * being deleted (default or VRF) and it is already registered.
2080 void bgp_zebra_instance_deregister(struct bgp
*bgp
)
2082 /* Don't try to deregister if we're not connected to Zebra */
2083 if (zclient
->sock
< 0)
2086 if (BGP_DEBUG(zebra
, ZEBRA
))
2087 zlog_debug("Deregistering VRF %u", bgp
->vrf_id
);
2089 /* For EVPN instance, unregister learning about VNIs, if appropriate. */
2090 if (bgp
->advertise_all_vni
)
2091 bgp_zebra_advertise_all_vni(bgp
, 0);
2093 /* Deregister for router-id, interfaces, redistributed routes. */
2094 zclient_send_dereg_requests(zclient
, bgp
->vrf_id
);
2097 void bgp_zebra_initiate_radv(struct bgp
*bgp
, struct peer
*peer
)
2099 uint32_t ra_interval
= BGP_UNNUM_DEFAULT_RA_INTERVAL
;
2101 /* Don't try to initiate if we're not connected to Zebra */
2102 if (zclient
->sock
< 0)
2105 if (BGP_DEBUG(zebra
, ZEBRA
))
2106 zlog_debug("%u: Initiating RA for peer %s", bgp
->vrf_id
,
2110 * If unnumbered peer (peer->ifp) call thru zapi to start RAs.
2111 * If we don't have an ifp pointer, call function to find the
2112 * ifps for a numbered enhe peer to turn RAs on.
2114 peer
->ifp
? zclient_send_interface_radv_req(zclient
, bgp
->vrf_id
,
2115 peer
->ifp
, 1, ra_interval
)
2116 : bgp_nht_reg_enhe_cap_intfs(peer
);
2119 void bgp_zebra_terminate_radv(struct bgp
*bgp
, struct peer
*peer
)
2121 /* Don't try to terminate if we're not connected to Zebra */
2122 if (zclient
->sock
< 0)
2125 if (BGP_DEBUG(zebra
, ZEBRA
))
2126 zlog_debug("%u: Terminating RA for peer %s", bgp
->vrf_id
,
2130 * If unnumbered peer (peer->ifp) call thru zapi to stop RAs.
2131 * If we don't have an ifp pointer, call function to find the
2132 * ifps for a numbered enhe peer to turn RAs off.
2134 peer
->ifp
? zclient_send_interface_radv_req(zclient
, bgp
->vrf_id
,
2136 : bgp_nht_dereg_enhe_cap_intfs(peer
);
2139 int bgp_zebra_advertise_subnet(struct bgp
*bgp
, int advertise
, vni_t vni
)
2141 struct stream
*s
= NULL
;
2144 if (!zclient
|| zclient
->sock
< 0)
2147 /* Don't try to register if Zebra doesn't know of this instance. */
2148 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
)) {
2149 if (BGP_DEBUG(zebra
, ZEBRA
))
2151 "%s: No zebra instance to talk to, cannot advertise subnet",
2159 zclient_create_header(s
, ZEBRA_ADVERTISE_SUBNET
, bgp
->vrf_id
);
2160 stream_putc(s
, advertise
);
2161 stream_put3(s
, vni
);
2162 stream_putw_at(s
, 0, stream_get_endp(s
));
2164 return zclient_send_message(zclient
);
2167 int bgp_zebra_advertise_svi_macip(struct bgp
*bgp
, int advertise
, vni_t vni
)
2169 struct stream
*s
= NULL
;
2172 if (!zclient
|| zclient
->sock
< 0)
2175 /* Don't try to register if Zebra doesn't know of this instance. */
2176 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
))
2182 zclient_create_header(s
, ZEBRA_ADVERTISE_SVI_MACIP
, bgp
->vrf_id
);
2183 stream_putc(s
, advertise
);
2184 stream_putl(s
, vni
);
2185 stream_putw_at(s
, 0, stream_get_endp(s
));
2187 return zclient_send_message(zclient
);
2190 int bgp_zebra_advertise_gw_macip(struct bgp
*bgp
, int advertise
, vni_t vni
)
2192 struct stream
*s
= NULL
;
2195 if (!zclient
|| zclient
->sock
< 0)
2198 /* Don't try to register if Zebra doesn't know of this instance. */
2199 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
)) {
2200 if (BGP_DEBUG(zebra
, ZEBRA
))
2202 "%s: No zebra instance to talk to, not installing gw_macip",
2210 zclient_create_header(s
, ZEBRA_ADVERTISE_DEFAULT_GW
, bgp
->vrf_id
);
2211 stream_putc(s
, advertise
);
2212 stream_putl(s
, vni
);
2213 stream_putw_at(s
, 0, stream_get_endp(s
));
2215 return zclient_send_message(zclient
);
2218 int bgp_zebra_vxlan_flood_control(struct bgp
*bgp
,
2219 enum vxlan_flood_control flood_ctrl
)
2224 if (!zclient
|| zclient
->sock
< 0)
2227 /* Don't try to register if Zebra doesn't know of this instance. */
2228 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
)) {
2229 if (BGP_DEBUG(zebra
, ZEBRA
))
2231 "%s: No zebra instance to talk to, not installing all vni",
2239 zclient_create_header(s
, ZEBRA_VXLAN_FLOOD_CONTROL
, bgp
->vrf_id
);
2240 stream_putc(s
, flood_ctrl
);
2241 stream_putw_at(s
, 0, stream_get_endp(s
));
2243 return zclient_send_message(zclient
);
2246 int bgp_zebra_advertise_all_vni(struct bgp
*bgp
, int advertise
)
2251 if (!zclient
|| zclient
->sock
< 0)
2254 /* Don't try to register if Zebra doesn't know of this instance. */
2255 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
))
2261 zclient_create_header(s
, ZEBRA_ADVERTISE_ALL_VNI
, bgp
->vrf_id
);
2262 stream_putc(s
, advertise
);
2263 /* Also inform current BUM handling setting. This is really
2264 * relevant only when 'advertise' is set.
2266 stream_putc(s
, bgp
->vxlan_flood_ctrl
);
2267 stream_putw_at(s
, 0, stream_get_endp(s
));
2269 return zclient_send_message(zclient
);
2272 int bgp_zebra_dup_addr_detection(struct bgp
*bgp
)
2277 if (!zclient
|| zclient
->sock
< 0)
2280 /* Don't try to register if Zebra doesn't know of this instance. */
2281 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
))
2284 if (BGP_DEBUG(zebra
, ZEBRA
))
2285 zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u",
2286 bgp
->evpn_info
->dup_addr_detect
?
2287 "enable" : "disable",
2288 bgp
->evpn_info
->dad_max_moves
,
2289 bgp
->evpn_info
->dad_time
,
2290 bgp
->evpn_info
->dad_freeze
?
2291 "enable" : "disable",
2292 bgp
->evpn_info
->dad_freeze_time
);
2296 zclient_create_header(s
, ZEBRA_DUPLICATE_ADDR_DETECTION
,
2298 stream_putl(s
, bgp
->evpn_info
->dup_addr_detect
);
2299 stream_putl(s
, bgp
->evpn_info
->dad_time
);
2300 stream_putl(s
, bgp
->evpn_info
->dad_max_moves
);
2301 stream_putl(s
, bgp
->evpn_info
->dad_freeze
);
2302 stream_putl(s
, bgp
->evpn_info
->dad_freeze_time
);
2303 stream_putw_at(s
, 0, stream_get_endp(s
));
2305 return zclient_send_message(zclient
);
2308 static int rule_notify_owner(ZAPI_CALLBACK_ARGS
)
2310 uint32_t seqno
, priority
, unique
;
2311 enum zapi_rule_notify_owner note
;
2312 struct bgp_pbr_action
*bgp_pbra
;
2313 struct bgp_pbr_rule
*bgp_pbr
= NULL
;
2314 char ifname
[INTERFACE_NAMSIZ
+ 1];
2316 if (!zapi_rule_notify_decode(zclient
->ibuf
, &seqno
, &priority
, &unique
,
2320 bgp_pbra
= bgp_pbr_action_rule_lookup(vrf_id
, unique
);
2322 /* look in bgp pbr rule */
2323 bgp_pbr
= bgp_pbr_rule_lookup(vrf_id
, unique
);
2324 if (!bgp_pbr
&& note
!= ZAPI_RULE_REMOVED
) {
2325 if (BGP_DEBUG(zebra
, ZEBRA
))
2326 zlog_debug("%s: Fail to look BGP rule (%u)",
2333 case ZAPI_RULE_FAIL_INSTALL
:
2334 if (BGP_DEBUG(zebra
, ZEBRA
))
2335 zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__
);
2337 bgp_pbra
->installed
= false;
2338 bgp_pbra
->install_in_progress
= false;
2340 bgp_pbr
->installed
= false;
2341 bgp_pbr
->install_in_progress
= false;
2344 case ZAPI_RULE_INSTALLED
:
2346 bgp_pbra
->installed
= true;
2347 bgp_pbra
->install_in_progress
= false;
2349 struct bgp_path_info
*path
;
2350 struct bgp_path_info_extra
*extra
;
2352 bgp_pbr
->installed
= true;
2353 bgp_pbr
->install_in_progress
= false;
2354 bgp_pbr
->action
->refcnt
++;
2355 /* link bgp_info to bgp_pbr */
2356 path
= (struct bgp_path_info
*)bgp_pbr
->path
;
2357 extra
= bgp_path_info_extra_get(path
);
2358 listnode_add_force(&extra
->bgp_fs_iprule
,
2361 if (BGP_DEBUG(zebra
, ZEBRA
))
2362 zlog_debug("%s: Received RULE_INSTALLED", __func__
);
2364 case ZAPI_RULE_FAIL_REMOVE
:
2365 case ZAPI_RULE_REMOVED
:
2366 if (BGP_DEBUG(zebra
, ZEBRA
))
2367 zlog_debug("%s: Received RULE REMOVED", __func__
);
2374 static int ipset_notify_owner(ZAPI_CALLBACK_ARGS
)
2377 enum zapi_ipset_notify_owner note
;
2378 struct bgp_pbr_match
*bgp_pbim
;
2380 if (!zapi_ipset_notify_decode(zclient
->ibuf
,
2385 bgp_pbim
= bgp_pbr_match_ipset_lookup(vrf_id
, unique
);
2387 if (BGP_DEBUG(zebra
, ZEBRA
))
2388 zlog_debug("%s: Fail to look BGP match ( %u, ID %u)",
2389 __func__
, note
, unique
);
2394 case ZAPI_IPSET_FAIL_INSTALL
:
2395 if (BGP_DEBUG(zebra
, ZEBRA
))
2396 zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__
);
2397 bgp_pbim
->installed
= false;
2398 bgp_pbim
->install_in_progress
= false;
2400 case ZAPI_IPSET_INSTALLED
:
2401 bgp_pbim
->installed
= true;
2402 bgp_pbim
->install_in_progress
= false;
2403 if (BGP_DEBUG(zebra
, ZEBRA
))
2404 zlog_debug("%s: Received IPSET_INSTALLED", __func__
);
2406 case ZAPI_IPSET_FAIL_REMOVE
:
2407 case ZAPI_IPSET_REMOVED
:
2408 if (BGP_DEBUG(zebra
, ZEBRA
))
2409 zlog_debug("%s: Received IPSET REMOVED", __func__
);
2416 static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS
)
2419 char ipset_name
[ZEBRA_IPSET_NAME_SIZE
];
2420 enum zapi_ipset_entry_notify_owner note
;
2421 struct bgp_pbr_match_entry
*bgp_pbime
;
2423 if (!zapi_ipset_entry_notify_decode(
2429 bgp_pbime
= bgp_pbr_match_ipset_entry_lookup(vrf_id
,
2433 if (BGP_DEBUG(zebra
, ZEBRA
))
2435 "%s: Fail to look BGP match entry (%u, ID %u)",
2436 __func__
, note
, unique
);
2441 case ZAPI_IPSET_ENTRY_FAIL_INSTALL
:
2442 if (BGP_DEBUG(zebra
, ZEBRA
))
2443 zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL",
2445 bgp_pbime
->installed
= false;
2446 bgp_pbime
->install_in_progress
= false;
2448 case ZAPI_IPSET_ENTRY_INSTALLED
:
2450 struct bgp_path_info
*path
;
2451 struct bgp_path_info_extra
*extra
;
2453 bgp_pbime
->installed
= true;
2454 bgp_pbime
->install_in_progress
= false;
2455 if (BGP_DEBUG(zebra
, ZEBRA
))
2456 zlog_debug("%s: Received IPSET_ENTRY_INSTALLED",
2458 /* link bgp_path_info to bpme */
2459 path
= (struct bgp_path_info
*)bgp_pbime
->path
;
2460 extra
= bgp_path_info_extra_get(path
);
2461 listnode_add_force(&extra
->bgp_fs_pbr
, bgp_pbime
);
2464 case ZAPI_IPSET_ENTRY_FAIL_REMOVE
:
2465 case ZAPI_IPSET_ENTRY_REMOVED
:
2466 if (BGP_DEBUG(zebra
, ZEBRA
))
2467 zlog_debug("%s: Received IPSET_ENTRY_REMOVED",
2474 static int iptable_notify_owner(ZAPI_CALLBACK_ARGS
)
2477 enum zapi_iptable_notify_owner note
;
2478 struct bgp_pbr_match
*bgpm
;
2480 if (!zapi_iptable_notify_decode(
2485 bgpm
= bgp_pbr_match_iptable_lookup(vrf_id
, unique
);
2487 if (BGP_DEBUG(zebra
, ZEBRA
))
2488 zlog_debug("%s: Fail to look BGP iptable (%u %u)",
2489 __func__
, note
, unique
);
2493 case ZAPI_IPTABLE_FAIL_INSTALL
:
2494 if (BGP_DEBUG(zebra
, ZEBRA
))
2495 zlog_debug("%s: Received IPTABLE_FAIL_INSTALL",
2497 bgpm
->installed_in_iptable
= false;
2498 bgpm
->install_iptable_in_progress
= false;
2500 case ZAPI_IPTABLE_INSTALLED
:
2501 bgpm
->installed_in_iptable
= true;
2502 bgpm
->install_iptable_in_progress
= false;
2503 if (BGP_DEBUG(zebra
, ZEBRA
))
2504 zlog_debug("%s: Received IPTABLE_INSTALLED", __func__
);
2505 bgpm
->action
->refcnt
++;
2507 case ZAPI_IPTABLE_FAIL_REMOVE
:
2508 case ZAPI_IPTABLE_REMOVED
:
2509 if (BGP_DEBUG(zebra
, ZEBRA
))
2510 zlog_debug("%s: Received IPTABLE REMOVED", __func__
);
2516 /* Process route notification messages from RIB */
2517 static int bgp_zebra_route_notify_owner(int command
, struct zclient
*zclient
,
2518 zebra_size_t length
, vrf_id_t vrf_id
)
2521 enum zapi_route_notify_owner note
;
2525 struct bgp_dest
*dest
;
2527 struct bgp_path_info
*pi
, *new_select
;
2529 if (!zapi_route_notify_decode(zclient
->ibuf
, &p
, &table_id
, ¬e
,
2531 zlog_err("%s : error in msg decode", __func__
);
2535 /* Get the bgp instance */
2536 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
2538 flog_err(EC_BGP_INVALID_BGP_INSTANCE
,
2539 "%s : bgp instance not found vrf %d", __func__
,
2544 /* Find the bgp route node */
2545 dest
= bgp_afi_node_lookup(bgp
->rib
[afi
][safi
], afi
, safi
, &p
,
2551 case ZAPI_ROUTE_INSTALLED
:
2553 /* Clear the flags so that route can be processed */
2554 UNSET_FLAG(dest
->flags
, BGP_NODE_FIB_INSTALL_PENDING
);
2555 SET_FLAG(dest
->flags
, BGP_NODE_FIB_INSTALLED
);
2556 if (BGP_DEBUG(zebra
, ZEBRA
))
2557 zlog_debug("route %pRN : INSTALLED", dest
);
2558 /* Find the best route */
2559 for (pi
= dest
->info
; pi
; pi
= pi
->next
) {
2560 /* Process aggregate route */
2561 bgp_aggregate_increment(bgp
, &p
, pi
, afi
, safi
);
2562 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
))
2565 /* Advertise the route */
2567 group_announce_route(bgp
, afi
, safi
, dest
, new_select
);
2569 flog_err(EC_BGP_INVALID_ROUTE
,
2570 "selected route %pRN not found", dest
);
2572 bgp_dest_unlock_node(dest
);
2576 case ZAPI_ROUTE_REMOVED
:
2577 /* Route deleted from dataplane, reset the installed flag
2578 * so that route can be reinstalled when client sends
2581 UNSET_FLAG(dest
->flags
, BGP_NODE_FIB_INSTALLED
);
2582 if (BGP_DEBUG(zebra
, ZEBRA
))
2583 zlog_debug("route %pRN: Removed from Fib", dest
);
2585 case ZAPI_ROUTE_FAIL_INSTALL
:
2587 if (BGP_DEBUG(zebra
, ZEBRA
))
2588 zlog_debug("route: %pRN Failed to Install into Fib",
2590 UNSET_FLAG(dest
->flags
, BGP_NODE_FIB_INSTALL_PENDING
);
2591 UNSET_FLAG(dest
->flags
, BGP_NODE_FIB_INSTALLED
);
2592 for (pi
= bgp_dest_get_bgp_path_info(dest
); pi
; pi
= pi
->next
) {
2593 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
))
2597 group_announce_route(bgp
, afi
, safi
, dest
, new_select
);
2598 /* Error will be logged by zebra module */
2600 case ZAPI_ROUTE_BETTER_ADMIN_WON
:
2601 if (BGP_DEBUG(zebra
, ZEBRA
))
2602 zlog_debug("route: %pRN removed due to better admin won",
2605 UNSET_FLAG(dest
->flags
, BGP_NODE_FIB_INSTALL_PENDING
);
2606 UNSET_FLAG(dest
->flags
, BGP_NODE_FIB_INSTALLED
);
2607 for (pi
= bgp_dest_get_bgp_path_info(dest
); pi
; pi
= pi
->next
) {
2608 bgp_aggregate_decrement(bgp
, &p
, pi
, afi
, safi
);
2609 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
))
2613 group_announce_route(bgp
, afi
, safi
, dest
, new_select
);
2614 /* No action required */
2616 case ZAPI_ROUTE_REMOVE_FAIL
:
2617 zlog_warn("%s: Route %pRN failure to remove",
2622 bgp_dest_unlock_node(dest
);
2626 /* this function is used to forge ip rule,
2627 * - either for iptable/ipset using fwmark id
2628 * - or for sample ip rule cmd
2630 static void bgp_encode_pbr_rule_action(struct stream
*s
,
2631 struct bgp_pbr_action
*pbra
,
2632 struct bgp_pbr_rule
*pbr
)
2635 uint8_t fam
= AF_INET
;
2636 char ifname
[INTERFACE_NAMSIZ
];
2638 if (pbra
->nh
.type
== NEXTHOP_TYPE_IPV6
)
2640 stream_putl(s
, 0); /* seqno unused */
2642 stream_putl(s
, pbr
->priority
);
2645 /* ruleno unused - priority change
2646 * ruleno permits distinguishing various FS PBR entries
2647 * - FS PBR entries based on ipset/iptables
2648 * - FS PBR entries based on iprule
2649 * the latter may contain default routing information injected by FS
2652 stream_putl(s
, pbr
->unique
);
2654 stream_putl(s
, pbra
->unique
);
2655 stream_putc(s
, 0); /* ip protocol being used */
2656 if (pbr
&& pbr
->flags
& MATCH_IP_SRC_SET
)
2657 memcpy(&pfx
, &(pbr
->src
), sizeof(struct prefix
));
2659 memset(&pfx
, 0, sizeof(pfx
));
2662 stream_putc(s
, pfx
.family
);
2663 stream_putc(s
, pfx
.prefixlen
);
2664 stream_put(s
, &pfx
.u
.prefix
, prefix_blen(&pfx
));
2666 stream_putw(s
, 0); /* src port */
2668 if (pbr
&& pbr
->flags
& MATCH_IP_DST_SET
)
2669 memcpy(&pfx
, &(pbr
->dst
), sizeof(struct prefix
));
2671 memset(&pfx
, 0, sizeof(pfx
));
2674 stream_putc(s
, pfx
.family
);
2675 stream_putc(s
, pfx
.prefixlen
);
2676 stream_put(s
, &pfx
.u
.prefix
, prefix_blen(&pfx
));
2678 stream_putw(s
, 0); /* dst port */
2679 stream_putc(s
, 0); /* dsfield */
2680 /* if pbr present, fwmark is not used */
2684 stream_putl(s
, pbra
->fwmark
); /* fwmark */
2686 stream_putl(s
, pbra
->table_id
);
2688 memset(ifname
, 0, sizeof(ifname
));
2689 stream_put(s
, ifname
, INTERFACE_NAMSIZ
); /* ifname unused */
2692 static void bgp_encode_pbr_ipset_match(struct stream
*s
,
2693 struct bgp_pbr_match
*pbim
)
2695 stream_putl(s
, pbim
->unique
);
2696 stream_putl(s
, pbim
->type
);
2697 stream_putc(s
, pbim
->family
);
2698 stream_put(s
, pbim
->ipset_name
,
2699 ZEBRA_IPSET_NAME_SIZE
);
2702 static void bgp_encode_pbr_ipset_entry_match(struct stream
*s
,
2703 struct bgp_pbr_match_entry
*pbime
)
2705 stream_putl(s
, pbime
->unique
);
2706 /* check that back pointer is not null */
2707 stream_put(s
, pbime
->backpointer
->ipset_name
,
2708 ZEBRA_IPSET_NAME_SIZE
);
2710 stream_putc(s
, pbime
->src
.family
);
2711 stream_putc(s
, pbime
->src
.prefixlen
);
2712 stream_put(s
, &pbime
->src
.u
.prefix
, prefix_blen(&pbime
->src
));
2714 stream_putc(s
, pbime
->dst
.family
);
2715 stream_putc(s
, pbime
->dst
.prefixlen
);
2716 stream_put(s
, &pbime
->dst
.u
.prefix
, prefix_blen(&pbime
->dst
));
2718 stream_putw(s
, pbime
->src_port_min
);
2719 stream_putw(s
, pbime
->src_port_max
);
2720 stream_putw(s
, pbime
->dst_port_min
);
2721 stream_putw(s
, pbime
->dst_port_max
);
2722 stream_putc(s
, pbime
->proto
);
2725 static void bgp_encode_pbr_iptable_match(struct stream
*s
,
2726 struct bgp_pbr_action
*bpa
,
2727 struct bgp_pbr_match
*pbm
)
2729 stream_putl(s
, pbm
->unique2
);
2731 stream_putl(s
, pbm
->type
);
2733 stream_putl(s
, pbm
->flags
);
2735 /* TODO: correlate with what is contained
2736 * into bgp_pbr_action.
2737 * currently only forward supported
2739 if (bpa
->nh
.type
== NEXTHOP_TYPE_BLACKHOLE
)
2740 stream_putl(s
, ZEBRA_IPTABLES_DROP
);
2742 stream_putl(s
, ZEBRA_IPTABLES_FORWARD
);
2743 stream_putl(s
, bpa
->fwmark
);
2744 stream_put(s
, pbm
->ipset_name
,
2745 ZEBRA_IPSET_NAME_SIZE
);
2746 stream_putc(s
, pbm
->family
);
2747 stream_putw(s
, pbm
->pkt_len_min
);
2748 stream_putw(s
, pbm
->pkt_len_max
);
2749 stream_putw(s
, pbm
->tcp_flags
);
2750 stream_putw(s
, pbm
->tcp_mask_flags
);
2751 stream_putc(s
, pbm
->dscp_value
);
2752 stream_putc(s
, pbm
->fragment
);
2753 stream_putc(s
, pbm
->protocol
);
2754 stream_putw(s
, pbm
->flow_label
);
2757 /* BGP has established connection with Zebra. */
2758 static void bgp_zebra_connected(struct zclient
*zclient
)
2762 zclient_num_connects
++; /* increment even if not responding */
2764 /* Send the client registration */
2765 bfd_client_sendmsg(zclient
, ZEBRA_BFD_CLIENT_REGISTER
, VRF_DEFAULT
);
2767 /* At this point, we may or may not have BGP instances configured, but
2768 * we're only interested in the default VRF (others wouldn't have learnt
2769 * the VRF from Zebra yet.)
2771 bgp
= bgp_get_default();
2775 bgp_zebra_instance_register(bgp
);
2777 /* tell label pool that zebra is connected */
2778 bgp_lp_event_zebra_up();
2780 /* TODO - What if we have peers and networks configured, do we have to
2783 BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp
, bgp
->peer
);
2786 static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS
)
2789 struct bgp
*bgp
= NULL
;
2790 struct stream
*s
= NULL
;
2791 char buf
[ESI_STR_LEN
];
2792 struct in_addr originator_ip
;
2797 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
2802 stream_get(&esi
, s
, sizeof(esi_t
));
2803 originator_ip
.s_addr
= stream_get_ipv4(s
);
2804 active
= stream_getc(s
);
2805 df_pref
= stream_getw(s
);
2806 bypass
= stream_getc(s
);
2808 if (BGP_DEBUG(zebra
, ZEBRA
))
2810 "Rx add ESI %s originator-ip %pI4 active %u df_pref %u %s",
2811 esi_to_str(&esi
, buf
, sizeof(buf
)), &originator_ip
,
2812 active
, df_pref
, bypass
? "bypass" : "");
2814 frrtrace(5, frr_bgp
, evpn_mh_local_es_add_zrecv
, &esi
, originator_ip
,
2815 active
, bypass
, df_pref
);
2817 bgp_evpn_local_es_add(bgp
, &esi
, originator_ip
, active
, df_pref
,
2823 static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS
)
2826 struct bgp
*bgp
= NULL
;
2827 struct stream
*s
= NULL
;
2828 char buf
[ESI_STR_LEN
];
2830 memset(&esi
, 0, sizeof(esi_t
));
2831 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
2836 stream_get(&esi
, s
, sizeof(esi_t
));
2838 if (BGP_DEBUG(zebra
, ZEBRA
))
2839 zlog_debug("Rx del ESI %s",
2840 esi_to_str(&esi
, buf
, sizeof(buf
)));
2842 frrtrace(1, frr_bgp
, evpn_mh_local_es_del_zrecv
, &esi
);
2844 bgp_evpn_local_es_del(bgp
, &esi
);
2849 static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS
)
2855 char buf
[ESI_STR_LEN
];
2857 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
2862 stream_get(&esi
, s
, sizeof(esi_t
));
2863 vni
= stream_getl(s
);
2865 if (BGP_DEBUG(zebra
, ZEBRA
))
2866 zlog_debug("Rx %s ESI %s VNI %u",
2867 (cmd
== ZEBRA_VNI_ADD
) ? "add" : "del",
2868 esi_to_str(&esi
, buf
, sizeof(buf
)), vni
);
2870 if (cmd
== ZEBRA_LOCAL_ES_EVI_ADD
) {
2871 frrtrace(2, frr_bgp
, evpn_mh_local_es_evi_add_zrecv
, &esi
, vni
);
2873 bgp_evpn_local_es_evi_add(bgp
, &esi
, vni
);
2875 frrtrace(2, frr_bgp
, evpn_mh_local_es_evi_del_zrecv
, &esi
, vni
);
2877 bgp_evpn_local_es_evi_del(bgp
, &esi
, vni
);
2883 static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS
)
2887 struct ethaddr svi_rmac
, vrr_rmac
= {.octet
= {0} };
2888 struct in_addr originator_ip
;
2890 ifindex_t svi_ifindex
;
2891 bool is_anycast_mac
= false;
2893 memset(&svi_rmac
, 0, sizeof(struct ethaddr
));
2894 memset(&originator_ip
, 0, sizeof(struct in_addr
));
2896 l3vni
= stream_getl(s
);
2897 if (cmd
== ZEBRA_L3VNI_ADD
) {
2898 stream_get(&svi_rmac
, s
, sizeof(struct ethaddr
));
2899 originator_ip
.s_addr
= stream_get_ipv4(s
);
2900 stream_get(&filter
, s
, sizeof(int));
2901 svi_ifindex
= stream_getl(s
);
2902 stream_get(&vrr_rmac
, s
, sizeof(struct ethaddr
));
2903 is_anycast_mac
= stream_getl(s
);
2905 if (BGP_DEBUG(zebra
, ZEBRA
))
2907 "Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %pEA vrr-mac %pEA filter %s svi-if %u",
2908 vrf_id_to_name(vrf_id
), l3vni
, &svi_rmac
,
2910 filter
? "prefix-routes-only" : "none",
2913 frrtrace(8, frr_bgp
, evpn_local_l3vni_add_zrecv
, l3vni
, vrf_id
,
2914 &svi_rmac
, &vrr_rmac
, filter
, originator_ip
,
2915 svi_ifindex
, is_anycast_mac
);
2917 bgp_evpn_local_l3vni_add(l3vni
, vrf_id
, &svi_rmac
, &vrr_rmac
,
2918 originator_ip
, filter
, svi_ifindex
,
2921 if (BGP_DEBUG(zebra
, ZEBRA
))
2922 zlog_debug("Rx L3-VNI DEL VRF %s VNI %u",
2923 vrf_id_to_name(vrf_id
), l3vni
);
2925 frrtrace(2, frr_bgp
, evpn_local_l3vni_del_zrecv
, l3vni
, vrf_id
);
2927 bgp_evpn_local_l3vni_del(l3vni
, vrf_id
);
2933 static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS
)
2938 struct in_addr vtep_ip
= {INADDR_ANY
};
2939 vrf_id_t tenant_vrf_id
= VRF_DEFAULT
;
2940 struct in_addr mcast_grp
= {INADDR_ANY
};
2941 ifindex_t svi_ifindex
= 0;
2944 vni
= stream_getl(s
);
2945 if (cmd
== ZEBRA_VNI_ADD
) {
2946 vtep_ip
.s_addr
= stream_get_ipv4(s
);
2947 stream_get(&tenant_vrf_id
, s
, sizeof(vrf_id_t
));
2948 mcast_grp
.s_addr
= stream_get_ipv4(s
);
2949 stream_get(&svi_ifindex
, s
, sizeof(ifindex_t
));
2952 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
2956 if (BGP_DEBUG(zebra
, ZEBRA
))
2958 "Rx VNI %s VRF %s VNI %u tenant-vrf %s SVI ifindex %u",
2959 (cmd
== ZEBRA_VNI_ADD
) ? "add" : "del",
2960 vrf_id_to_name(vrf_id
), vni
,
2961 vrf_id_to_name(tenant_vrf_id
), svi_ifindex
);
2963 if (cmd
== ZEBRA_VNI_ADD
) {
2964 frrtrace(4, frr_bgp
, evpn_local_vni_add_zrecv
, vni
, vtep_ip
,
2965 tenant_vrf_id
, mcast_grp
);
2967 return bgp_evpn_local_vni_add(
2969 vtep_ip
.s_addr
!= INADDR_ANY
? vtep_ip
: bgp
->router_id
,
2970 tenant_vrf_id
, mcast_grp
, svi_ifindex
);
2972 frrtrace(1, frr_bgp
, evpn_local_vni_del_zrecv
, vni
);
2974 return bgp_evpn_local_vni_del(bgp
, vni
);
2978 static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS
)
2987 uint32_t seqnum
= 0;
2989 char buf2
[ESI_STR_LEN
];
2992 memset(&ip
, 0, sizeof(ip
));
2994 vni
= stream_getl(s
);
2995 stream_get(&mac
.octet
, s
, ETH_ALEN
);
2996 ipa_len
= stream_getl(s
);
2997 if (ipa_len
!= 0 && ipa_len
!= IPV4_MAX_BYTELEN
2998 && ipa_len
!= IPV6_MAX_BYTELEN
) {
2999 flog_err(EC_BGP_MACIP_LEN
,
3000 "%u:Recv MACIP %s with invalid IP addr length %d",
3001 vrf_id
, (cmd
== ZEBRA_MACIP_ADD
) ? "Add" : "Del",
3008 (ipa_len
== IPV4_MAX_BYTELEN
) ? IPADDR_V4
: IPADDR_V6
;
3009 stream_get(&ip
.ip
.addr
, s
, ipa_len
);
3011 if (cmd
== ZEBRA_MACIP_ADD
) {
3012 flags
= stream_getc(s
);
3013 seqnum
= stream_getl(s
);
3014 stream_get(&esi
, s
, sizeof(esi_t
));
3016 state
= stream_getl(s
);
3017 memset(&esi
, 0, sizeof(esi_t
));
3020 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
3024 if (BGP_DEBUG(zebra
, ZEBRA
))
3026 "%u:Recv MACIP %s f 0x%x MAC %pEA IP %pIA VNI %u seq %u state %d ESI %s",
3027 vrf_id
, (cmd
== ZEBRA_MACIP_ADD
) ? "Add" : "Del", flags
,
3028 &mac
, &ip
, vni
, seqnum
, state
,
3029 esi_to_str(&esi
, buf2
, sizeof(buf2
)));
3031 if (cmd
== ZEBRA_MACIP_ADD
) {
3032 frrtrace(6, frr_bgp
, evpn_local_macip_add_zrecv
, vni
, &mac
, &ip
,
3033 flags
, seqnum
, &esi
);
3035 return bgp_evpn_local_macip_add(bgp
, vni
, &mac
, &ip
,
3036 flags
, seqnum
, &esi
);
3038 frrtrace(4, frr_bgp
, evpn_local_macip_del_zrecv
, vni
, &mac
, &ip
,
3041 return bgp_evpn_local_macip_del(bgp
, vni
, &mac
, &ip
, state
);
3045 static int bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS
)
3047 struct stream
*s
= NULL
;
3048 struct bgp
*bgp_vrf
= NULL
;
3051 memset(&p
, 0, sizeof(struct prefix
));
3053 stream_get(&p
, s
, sizeof(struct prefix
));
3055 bgp_vrf
= bgp_lookup_by_vrf_id(vrf_id
);
3059 if (BGP_DEBUG(zebra
, ZEBRA
))
3060 zlog_debug("Recv prefix %pFX %s on vrf %s", &p
,
3061 (cmd
== ZEBRA_IP_PREFIX_ROUTE_ADD
) ? "ADD" : "DEL",
3062 vrf_id_to_name(vrf_id
));
3064 if (cmd
== ZEBRA_IP_PREFIX_ROUTE_ADD
) {
3066 if (p
.family
== AF_INET
)
3067 bgp_evpn_advertise_type5_route(bgp_vrf
, &p
, NULL
,
3068 AFI_IP
, SAFI_UNICAST
);
3070 bgp_evpn_advertise_type5_route(bgp_vrf
, &p
, NULL
,
3071 AFI_IP6
, SAFI_UNICAST
);
3074 if (p
.family
== AF_INET
)
3075 bgp_evpn_withdraw_type5_route(bgp_vrf
, &p
, AFI_IP
,
3078 bgp_evpn_withdraw_type5_route(bgp_vrf
, &p
, AFI_IP6
,
3084 static int bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS
)
3086 struct stream
*s
= NULL
;
3087 uint8_t response_keep
;
3091 unsigned short instance
;
3094 STREAM_GETC(s
, proto
);
3095 STREAM_GETW(s
, instance
);
3096 STREAM_GETC(s
, response_keep
);
3097 STREAM_GETL(s
, first
);
3098 STREAM_GETL(s
, last
);
3100 if (zclient
->redist_default
!= proto
) {
3101 flog_err(EC_BGP_LM_ERROR
, "Got LM msg with wrong proto %u",
3105 if (zclient
->instance
!= instance
) {
3106 flog_err(EC_BGP_LM_ERROR
, "Got LM msg with wrong instance %u",
3112 first
< MPLS_LABEL_UNRESERVED_MIN
||
3113 last
> MPLS_LABEL_UNRESERVED_MAX
) {
3115 flog_err(EC_BGP_LM_ERROR
, "%s: Invalid Label chunk: %u - %u",
3116 __func__
, first
, last
);
3119 if (BGP_DEBUG(zebra
, ZEBRA
)) {
3120 zlog_debug("Label Chunk assign: %u - %u (%u) ",
3121 first
, last
, response_keep
);
3124 bgp_lp_event_chunk(response_keep
, first
, last
);
3128 stream_failure
: /* for STREAM_GETX */
3132 extern struct zebra_privs_t bgpd_privs
;
3134 static int bgp_ifp_create(struct interface
*ifp
)
3138 if (BGP_DEBUG(zebra
, ZEBRA
))
3139 zlog_debug("Rx Intf add VRF %u IF %s", ifp
->vrf
->vrf_id
,
3142 bgp
= ifp
->vrf
->info
;
3146 bgp_mac_add_mac_entry(ifp
);
3148 bgp_update_interface_nbrs(bgp
, ifp
, ifp
);
3149 hook_call(bgp_vrf_status_changed
, bgp
, ifp
);
3153 static int bgp_zebra_process_srv6_locator_chunk(ZAPI_CALLBACK_ARGS
)
3155 struct stream
*s
= NULL
;
3156 struct bgp
*bgp
= bgp_get_default();
3157 struct listnode
*node
;
3158 struct srv6_locator_chunk
*c
;
3159 struct srv6_locator_chunk
*chunk
= srv6_locator_chunk_alloc();
3162 zapi_srv6_locator_chunk_decode(s
, chunk
);
3164 if (strcmp(bgp
->srv6_locator_name
, chunk
->locator_name
) != 0) {
3165 zlog_err("%s: Locator name unmatch %s:%s", __func__
,
3166 bgp
->srv6_locator_name
, chunk
->locator_name
);
3167 srv6_locator_chunk_free(chunk
);
3171 for (ALL_LIST_ELEMENTS_RO(bgp
->srv6_locator_chunks
, node
, c
)) {
3172 if (!prefix_cmp(&c
->prefix
, &chunk
->prefix
)) {
3173 srv6_locator_chunk_free(chunk
);
3178 listnode_add(bgp
->srv6_locator_chunks
, chunk
);
3179 vpn_leak_postchange_all();
3183 static int bgp_zebra_process_srv6_locator_add(ZAPI_CALLBACK_ARGS
)
3185 struct srv6_locator loc
= {};
3186 struct bgp
*bgp
= bgp_get_default();
3187 const char *loc_name
= bgp
->srv6_locator_name
;
3189 if (zapi_srv6_locator_decode(zclient
->ibuf
, &loc
) < 0)
3192 if (!bgp
|| !bgp
->srv6_enabled
)
3195 if (bgp_zebra_srv6_manager_get_locator_chunk(loc_name
) < 0)
3201 static int bgp_zebra_process_srv6_locator_delete(ZAPI_CALLBACK_ARGS
)
3203 struct srv6_locator loc
= {};
3204 struct bgp
*bgp
= bgp_get_default();
3205 struct listnode
*node
, *nnode
;
3206 struct srv6_locator_chunk
*chunk
;
3207 struct bgp_srv6_function
*func
;
3208 struct bgp
*bgp_vrf
;
3209 struct in6_addr
*tovpn_sid
;
3210 struct prefix_ipv6 tmp_prefi
;
3212 if (zapi_srv6_locator_decode(zclient
->ibuf
, &loc
) < 0)
3216 for (ALL_LIST_ELEMENTS(bgp
->srv6_locator_chunks
, node
, nnode
, chunk
))
3217 if (prefix_match((struct prefix
*)&loc
.prefix
,
3218 (struct prefix
*)&chunk
->prefix
))
3219 listnode_delete(bgp
->srv6_locator_chunks
, chunk
);
3221 // refresh functions
3222 for (ALL_LIST_ELEMENTS(bgp
->srv6_functions
, node
, nnode
, func
)) {
3223 tmp_prefi
.family
= AF_INET6
;
3224 tmp_prefi
.prefixlen
= 128;
3225 tmp_prefi
.prefix
= func
->sid
;
3226 if (prefix_match((struct prefix
*)&loc
.prefix
,
3227 (struct prefix
*)&tmp_prefi
))
3228 listnode_delete(bgp
->srv6_functions
, func
);
3231 // refresh tovpn_sid
3232 for (ALL_LIST_ELEMENTS_RO(bm
->bgp
, node
, bgp_vrf
)) {
3233 if (bgp_vrf
->inst_type
!= BGP_INSTANCE_TYPE_VRF
)
3236 // refresh vpnv4 tovpn_sid
3237 tovpn_sid
= bgp_vrf
->vpn_policy
[AFI_IP
].tovpn_sid
;
3239 tmp_prefi
.family
= AF_INET6
;
3240 tmp_prefi
.prefixlen
= 128;
3241 tmp_prefi
.prefix
= *tovpn_sid
;
3242 if (prefix_match((struct prefix
*)&loc
.prefix
,
3243 (struct prefix
*)&tmp_prefi
))
3244 XFREE(MTYPE_BGP_SRV6_SID
,
3245 bgp_vrf
->vpn_policy
[AFI_IP
].tovpn_sid
);
3248 // refresh vpnv6 tovpn_sid
3249 tovpn_sid
= bgp_vrf
->vpn_policy
[AFI_IP6
].tovpn_sid
;
3251 tmp_prefi
.family
= AF_INET6
;
3252 tmp_prefi
.prefixlen
= 128;
3253 tmp_prefi
.prefix
= *tovpn_sid
;
3254 if (prefix_match((struct prefix
*)&loc
.prefix
,
3255 (struct prefix
*)&tmp_prefi
))
3256 XFREE(MTYPE_BGP_SRV6_SID
,
3257 bgp_vrf
->vpn_policy
[AFI_IP6
].tovpn_sid
);
3261 vpn_leak_postchange_all();
3265 static zclient_handler
*const bgp_handlers
[] = {
3266 [ZEBRA_ROUTER_ID_UPDATE
] = bgp_router_id_update
,
3267 [ZEBRA_INTERFACE_ADDRESS_ADD
] = bgp_interface_address_add
,
3268 [ZEBRA_INTERFACE_ADDRESS_DELETE
] = bgp_interface_address_delete
,
3269 [ZEBRA_INTERFACE_NBR_ADDRESS_ADD
] = bgp_interface_nbr_address_add
,
3270 [ZEBRA_INTERFACE_NBR_ADDRESS_DELETE
] = bgp_interface_nbr_address_delete
,
3271 [ZEBRA_INTERFACE_VRF_UPDATE
] = bgp_interface_vrf_update
,
3272 [ZEBRA_REDISTRIBUTE_ROUTE_ADD
] = zebra_read_route
,
3273 [ZEBRA_REDISTRIBUTE_ROUTE_DEL
] = zebra_read_route
,
3274 [ZEBRA_NEXTHOP_UPDATE
] = bgp_read_nexthop_update
,
3275 [ZEBRA_FEC_UPDATE
] = bgp_read_fec_update
,
3276 [ZEBRA_LOCAL_ES_ADD
] = bgp_zebra_process_local_es_add
,
3277 [ZEBRA_LOCAL_ES_DEL
] = bgp_zebra_process_local_es_del
,
3278 [ZEBRA_VNI_ADD
] = bgp_zebra_process_local_vni
,
3279 [ZEBRA_LOCAL_ES_EVI_ADD
] = bgp_zebra_process_local_es_evi
,
3280 [ZEBRA_LOCAL_ES_EVI_DEL
] = bgp_zebra_process_local_es_evi
,
3281 [ZEBRA_VNI_DEL
] = bgp_zebra_process_local_vni
,
3282 [ZEBRA_MACIP_ADD
] = bgp_zebra_process_local_macip
,
3283 [ZEBRA_MACIP_DEL
] = bgp_zebra_process_local_macip
,
3284 [ZEBRA_L3VNI_ADD
] = bgp_zebra_process_local_l3vni
,
3285 [ZEBRA_L3VNI_DEL
] = bgp_zebra_process_local_l3vni
,
3286 [ZEBRA_IP_PREFIX_ROUTE_ADD
] = bgp_zebra_process_local_ip_prefix
,
3287 [ZEBRA_IP_PREFIX_ROUTE_DEL
] = bgp_zebra_process_local_ip_prefix
,
3288 [ZEBRA_GET_LABEL_CHUNK
] = bgp_zebra_process_label_chunk
,
3289 [ZEBRA_RULE_NOTIFY_OWNER
] = rule_notify_owner
,
3290 [ZEBRA_IPSET_NOTIFY_OWNER
] = ipset_notify_owner
,
3291 [ZEBRA_IPSET_ENTRY_NOTIFY_OWNER
] = ipset_entry_notify_owner
,
3292 [ZEBRA_IPTABLE_NOTIFY_OWNER
] = iptable_notify_owner
,
3293 [ZEBRA_ROUTE_NOTIFY_OWNER
] = bgp_zebra_route_notify_owner
,
3294 [ZEBRA_SRV6_LOCATOR_ADD
] = bgp_zebra_process_srv6_locator_add
,
3295 [ZEBRA_SRV6_LOCATOR_DELETE
] = bgp_zebra_process_srv6_locator_delete
,
3296 [ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK
] =
3297 bgp_zebra_process_srv6_locator_chunk
,
3300 void bgp_zebra_init(struct thread_master
*master
, unsigned short instance
)
3302 zclient_num_connects
= 0;
3304 if_zapi_callbacks(bgp_ifp_create
, bgp_ifp_up
,
3305 bgp_ifp_down
, bgp_ifp_destroy
);
3307 /* Set default values. */
3308 zclient
= zclient_new(master
, &zclient_options_default
, bgp_handlers
,
3309 array_size(bgp_handlers
));
3310 zclient_init(zclient
, ZEBRA_ROUTE_BGP
, 0, &bgpd_privs
);
3311 zclient
->zebra_connected
= bgp_zebra_connected
;
3312 zclient
->instance
= instance
;
3315 void bgp_zebra_destroy(void)
3317 if (zclient
== NULL
)
3319 zclient_stop(zclient
);
3320 zclient_free(zclient
);
3324 int bgp_zebra_num_connects(void)
3326 return zclient_num_connects
;
3329 void bgp_send_pbr_rule_action(struct bgp_pbr_action
*pbra
,
3330 struct bgp_pbr_rule
*pbr
,
3335 if (pbra
->install_in_progress
&& !pbr
)
3337 if (pbr
&& pbr
->install_in_progress
)
3339 if (BGP_DEBUG(zebra
, ZEBRA
)) {
3341 zlog_debug("%s: table %d (ip rule) %d", __func__
,
3342 pbra
->table_id
, install
);
3344 zlog_debug("%s: table %d fwmark %d %d", __func__
,
3345 pbra
->table_id
, pbra
->fwmark
, install
);
3350 zclient_create_header(s
,
3351 install
? ZEBRA_RULE_ADD
: ZEBRA_RULE_DELETE
,
3353 stream_putl(s
, 1); /* send one pbr action */
3355 bgp_encode_pbr_rule_action(s
, pbra
, pbr
);
3357 stream_putw_at(s
, 0, stream_get_endp(s
));
3358 if ((zclient_send_message(zclient
) != ZCLIENT_SEND_FAILURE
)
3361 pbra
->install_in_progress
= true;
3363 pbr
->install_in_progress
= true;
3367 void bgp_send_pbr_ipset_match(struct bgp_pbr_match
*pbrim
, bool install
)
3371 if (pbrim
->install_in_progress
)
3373 if (BGP_DEBUG(zebra
, ZEBRA
))
3374 zlog_debug("%s: name %s type %d %d, ID %u", __func__
,
3375 pbrim
->ipset_name
, pbrim
->type
, install
,
3380 zclient_create_header(s
,
3381 install
? ZEBRA_IPSET_CREATE
:
3382 ZEBRA_IPSET_DESTROY
,
3385 stream_putl(s
, 1); /* send one pbr action */
3387 bgp_encode_pbr_ipset_match(s
, pbrim
);
3389 stream_putw_at(s
, 0, stream_get_endp(s
));
3390 if ((zclient_send_message(zclient
) != ZCLIENT_SEND_FAILURE
) && install
)
3391 pbrim
->install_in_progress
= true;
3394 void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry
*pbrime
,
3399 if (pbrime
->install_in_progress
)
3401 if (BGP_DEBUG(zebra
, ZEBRA
))
3402 zlog_debug("%s: name %s %d %d, ID %u", __func__
,
3403 pbrime
->backpointer
->ipset_name
, pbrime
->unique
,
3404 install
, pbrime
->unique
);
3408 zclient_create_header(s
,
3409 install
? ZEBRA_IPSET_ENTRY_ADD
:
3410 ZEBRA_IPSET_ENTRY_DELETE
,
3413 stream_putl(s
, 1); /* send one pbr action */
3415 bgp_encode_pbr_ipset_entry_match(s
, pbrime
);
3417 stream_putw_at(s
, 0, stream_get_endp(s
));
3418 if ((zclient_send_message(zclient
) != ZCLIENT_SEND_FAILURE
) && install
)
3419 pbrime
->install_in_progress
= true;
3422 static void bgp_encode_pbr_interface_list(struct bgp
*bgp
, struct stream
*s
,
3425 struct bgp_pbr_config
*bgp_pbr_cfg
= bgp
->bgp_pbr_cfg
;
3426 struct bgp_pbr_interface_head
*head
;
3427 struct bgp_pbr_interface
*pbr_if
;
3428 struct interface
*ifp
;
3432 if (family
== AF_INET
)
3433 head
= &(bgp_pbr_cfg
->ifaces_by_name_ipv4
);
3435 head
= &(bgp_pbr_cfg
->ifaces_by_name_ipv6
);
3436 RB_FOREACH (pbr_if
, bgp_pbr_interface_head
, head
) {
3437 ifp
= if_lookup_by_name(pbr_if
->name
, bgp
->vrf_id
);
3439 stream_putl(s
, ifp
->ifindex
);
3443 static int bgp_pbr_get_ifnumber(struct bgp
*bgp
, uint8_t family
)
3445 struct bgp_pbr_config
*bgp_pbr_cfg
= bgp
->bgp_pbr_cfg
;
3446 struct bgp_pbr_interface_head
*head
;
3447 struct bgp_pbr_interface
*pbr_if
;
3452 if (family
== AF_INET
)
3453 head
= &(bgp_pbr_cfg
->ifaces_by_name_ipv4
);
3455 head
= &(bgp_pbr_cfg
->ifaces_by_name_ipv6
);
3456 RB_FOREACH (pbr_if
, bgp_pbr_interface_head
, head
) {
3457 if (if_lookup_by_name(pbr_if
->name
, bgp
->vrf_id
))
3463 void bgp_send_pbr_iptable(struct bgp_pbr_action
*pba
,
3464 struct bgp_pbr_match
*pbm
,
3471 if (pbm
->install_iptable_in_progress
)
3473 if (BGP_DEBUG(zebra
, ZEBRA
))
3474 zlog_debug("%s: name %s type %d mark %d %d, ID %u", __func__
,
3475 pbm
->ipset_name
, pbm
->type
, pba
->fwmark
, install
,
3480 zclient_create_header(s
,
3481 install
? ZEBRA_IPTABLE_ADD
:
3482 ZEBRA_IPTABLE_DELETE
,
3485 bgp_encode_pbr_iptable_match(s
, pba
, pbm
);
3486 nb_interface
= bgp_pbr_get_ifnumber(pba
->bgp
, pbm
->family
);
3487 stream_putl(s
, nb_interface
);
3489 bgp_encode_pbr_interface_list(pba
->bgp
, s
, pbm
->family
);
3490 stream_putw_at(s
, 0, stream_get_endp(s
));
3491 ret
= zclient_send_message(zclient
);
3493 if (ret
!= ZCLIENT_SEND_FAILURE
)
3496 pbm
->install_iptable_in_progress
= true;
3500 /* inject in table <table_id> a default route to:
3501 * - if nexthop IP is present : to this nexthop
3502 * - if vrf is different from local : to the matching VRF
3504 void bgp_zebra_announce_default(struct bgp
*bgp
, struct nexthop
*nh
,
3505 afi_t afi
, uint32_t table_id
, bool announce
)
3507 struct zapi_nexthop
*api_nh
;
3508 struct zapi_route api
;
3511 if (!nh
|| (nh
->type
!= NEXTHOP_TYPE_IPV4
3512 && nh
->type
!= NEXTHOP_TYPE_IPV6
)
3513 || nh
->vrf_id
== VRF_UNKNOWN
)
3516 /* in vrf-lite, no default route has to be announced
3517 * the table id of vrf is directly used to divert traffic
3519 if (!vrf_is_backend_netns() && bgp
->vrf_id
!= nh
->vrf_id
)
3522 memset(&p
, 0, sizeof(struct prefix
));
3523 if (afi
!= AFI_IP
&& afi
!= AFI_IP6
)
3525 p
.family
= afi2family(afi
);
3526 memset(&api
, 0, sizeof(api
));
3527 api
.vrf_id
= bgp
->vrf_id
;
3528 api
.type
= ZEBRA_ROUTE_BGP
;
3529 api
.safi
= SAFI_UNICAST
;
3531 api
.tableid
= table_id
;
3532 api
.nexthop_num
= 1;
3533 SET_FLAG(api
.message
, ZAPI_MESSAGE_TABLEID
);
3534 SET_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
);
3535 api_nh
= &api
.nexthops
[0];
3537 api
.distance
= ZEBRA_EBGP_DISTANCE_DEFAULT
;
3538 SET_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
);
3541 if (afi
== AFI_IP
&& nh
->gate
.ipv4
.s_addr
!= INADDR_ANY
) {
3542 char buff
[PREFIX_STRLEN
];
3544 api_nh
->vrf_id
= nh
->vrf_id
;
3545 api_nh
->gate
.ipv4
= nh
->gate
.ipv4
;
3546 api_nh
->type
= NEXTHOP_TYPE_IPV4
;
3548 inet_ntop(AF_INET
, &(nh
->gate
.ipv4
), buff
, INET_ADDRSTRLEN
);
3549 if (BGP_DEBUG(zebra
, ZEBRA
))
3550 zlog_debug("BGP: %s default route to %s table %d (redirect IP)",
3551 announce
? "adding" : "withdrawing",
3553 zclient_route_send(announce
? ZEBRA_ROUTE_ADD
3554 : ZEBRA_ROUTE_DELETE
,
3556 } else if (afi
== AFI_IP6
&&
3557 memcmp(&nh
->gate
.ipv6
,
3558 &in6addr_any
, sizeof(struct in6_addr
))) {
3559 char buff
[PREFIX_STRLEN
];
3561 api_nh
->vrf_id
= nh
->vrf_id
;
3562 memcpy(&api_nh
->gate
.ipv6
, &nh
->gate
.ipv6
,
3563 sizeof(struct in6_addr
));
3564 api_nh
->type
= NEXTHOP_TYPE_IPV6
;
3566 inet_ntop(AF_INET6
, &(nh
->gate
.ipv6
), buff
, INET_ADDRSTRLEN
);
3567 if (BGP_DEBUG(zebra
, ZEBRA
))
3568 zlog_debug("BGP: %s default route to %s table %d (redirect IP)",
3569 announce
? "adding" : "withdrawing",
3571 zclient_route_send(announce
? ZEBRA_ROUTE_ADD
3572 : ZEBRA_ROUTE_DELETE
,
3574 } else if (nh
->vrf_id
!= bgp
->vrf_id
) {
3576 struct interface
*ifp
;
3578 vrf
= vrf_lookup_by_id(nh
->vrf_id
);
3581 /* create default route with interface <VRF>
3582 * with nexthop-vrf <VRF>
3584 ifp
= if_lookup_by_name_vrf(vrf
->name
, vrf
);
3587 api_nh
->vrf_id
= nh
->vrf_id
;
3588 api_nh
->type
= NEXTHOP_TYPE_IFINDEX
;
3589 api_nh
->ifindex
= ifp
->ifindex
;
3590 if (BGP_DEBUG(zebra
, ZEBRA
))
3591 zlog_info("BGP: %s default route to %s table %d (redirect VRF)",
3592 announce
? "adding" : "withdrawing",
3593 vrf
->name
, table_id
);
3594 zclient_route_send(announce
? ZEBRA_ROUTE_ADD
3595 : ZEBRA_ROUTE_DELETE
,
3601 /* Send capabilities to RIB */
3602 int bgp_zebra_send_capabilities(struct bgp
*bgp
, bool disable
)
3604 struct zapi_cap api
;
3605 int ret
= BGP_GR_SUCCESS
;
3607 if (zclient
== NULL
) {
3608 if (BGP_DEBUG(zebra
, ZEBRA
))
3609 zlog_debug("zclient invalid");
3610 return BGP_GR_FAILURE
;
3613 /* Check if the client is connected */
3614 if ((zclient
->sock
< 0) || (zclient
->t_connect
)) {
3615 if (BGP_DEBUG(zebra
, ZEBRA
))
3616 zlog_debug("client not connected");
3617 return BGP_GR_FAILURE
;
3620 /* Check if capability is already sent. If the flag force is set
3621 * send the capability since this can be initial bgp configuration
3623 memset(&api
, 0, sizeof(struct zapi_cap
));
3625 api
.cap
= ZEBRA_CLIENT_GR_DISABLE
;
3626 api
.vrf_id
= bgp
->vrf_id
;
3628 api
.cap
= ZEBRA_CLIENT_GR_CAPABILITIES
;
3629 api
.stale_removal_time
= bgp
->rib_stale_time
;
3630 api
.vrf_id
= bgp
->vrf_id
;
3633 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES
, zclient
, &api
)
3634 == ZCLIENT_SEND_FAILURE
) {
3635 zlog_err("error sending capability");
3636 ret
= BGP_GR_FAILURE
;
3639 bgp
->present_zebra_gr_state
= ZEBRA_GR_DISABLE
;
3641 bgp
->present_zebra_gr_state
= ZEBRA_GR_ENABLE
;
3643 if (BGP_DEBUG(zebra
, ZEBRA
))
3644 zlog_debug("send capabilty success");
3645 ret
= BGP_GR_SUCCESS
;
3650 /* Send route update pesding or completed status to RIB for the
3651 * specific AFI, SAFI
3653 int bgp_zebra_update(afi_t afi
, safi_t safi
, vrf_id_t vrf_id
, int type
)
3655 struct zapi_cap api
= {0};
3657 if (zclient
== NULL
) {
3658 if (BGP_DEBUG(zebra
, ZEBRA
))
3659 zlog_debug("zclient == NULL, invalid");
3660 return BGP_GR_FAILURE
;
3663 /* Check if the client is connected */
3664 if ((zclient
->sock
< 0) || (zclient
->t_connect
)) {
3665 if (BGP_DEBUG(zebra
, ZEBRA
))
3666 zlog_debug("client not connected");
3667 return BGP_GR_FAILURE
;
3672 api
.vrf_id
= vrf_id
;
3675 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES
, zclient
, &api
)
3676 == ZCLIENT_SEND_FAILURE
) {
3677 if (BGP_DEBUG(zebra
, ZEBRA
))
3678 zlog_debug("error sending capability");
3679 return BGP_GR_FAILURE
;
3681 return BGP_GR_SUCCESS
;
3685 /* Send RIB stale timer update */
3686 int bgp_zebra_stale_timer_update(struct bgp
*bgp
)
3688 struct zapi_cap api
;
3690 if (zclient
== NULL
) {
3691 if (BGP_DEBUG(zebra
, ZEBRA
))
3692 zlog_debug("zclient invalid");
3693 return BGP_GR_FAILURE
;
3696 /* Check if the client is connected */
3697 if ((zclient
->sock
< 0) || (zclient
->t_connect
)) {
3698 if (BGP_DEBUG(zebra
, ZEBRA
))
3699 zlog_debug("client not connected");
3700 return BGP_GR_FAILURE
;
3703 memset(&api
, 0, sizeof(struct zapi_cap
));
3704 api
.cap
= ZEBRA_CLIENT_RIB_STALE_TIME
;
3705 api
.stale_removal_time
= bgp
->rib_stale_time
;
3706 api
.vrf_id
= bgp
->vrf_id
;
3707 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES
, zclient
, &api
)
3708 == ZCLIENT_SEND_FAILURE
) {
3709 if (BGP_DEBUG(zebra
, ZEBRA
))
3710 zlog_debug("error sending capability");
3711 return BGP_GR_FAILURE
;
3713 if (BGP_DEBUG(zebra
, ZEBRA
))
3714 zlog_debug("send capabilty success");
3715 return BGP_GR_SUCCESS
;
3718 int bgp_zebra_srv6_manager_get_locator_chunk(const char *name
)
3720 return srv6_manager_get_locator_chunk(zclient
, name
);
3723 int bgp_zebra_srv6_manager_release_locator_chunk(const char *name
)
3725 return srv6_manager_release_locator_chunk(zclient
, name
);