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"
41 #include "bgpd/bgpd.h"
42 #include "bgpd/bgp_route.h"
43 #include "bgpd/bgp_attr.h"
44 #include "bgpd/bgp_nexthop.h"
45 #include "bgpd/bgp_zebra.h"
46 #include "bgpd/bgp_fsm.h"
47 #include "bgpd/bgp_debug.h"
48 #include "bgpd/bgp_errors.h"
49 #include "bgpd/bgp_mpath.h"
50 #include "bgpd/bgp_nexthop.h"
51 #include "bgpd/bgp_nht.h"
52 #include "bgpd/bgp_bfd.h"
53 #include "bgpd/bgp_label.h"
55 #include "bgpd/rfapi/rfapi_backend.h"
56 #include "bgpd/rfapi/vnc_export_bgp.h"
58 #include "bgpd/bgp_evpn.h"
59 #include "bgpd/bgp_mplsvpn.h"
60 #include "bgpd/bgp_labelpool.h"
61 #include "bgpd/bgp_pbr.h"
62 #include "bgpd/bgp_evpn_private.h"
63 #include "bgpd/bgp_mac.h"
65 /* All information about zebra. */
66 struct zclient
*zclient
= NULL
;
68 /* Can we install into zebra? */
69 static inline int bgp_install_info_to_zebra(struct bgp
*bgp
)
71 if (zclient
->sock
<= 0)
74 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
)) {
75 zlog_debug("%s: No zebra instance to talk to, not installing information",
83 int zclient_num_connects
;
85 /* Router-id update message from zebra. */
86 static int bgp_router_id_update(ZAPI_CALLBACK_ARGS
)
88 struct prefix router_id
;
90 zebra_router_id_update_read(zclient
->ibuf
, &router_id
);
92 if (BGP_DEBUG(zebra
, ZEBRA
)) {
93 char buf
[PREFIX2STR_BUFFER
];
94 prefix2str(&router_id
, buf
, sizeof(buf
));
95 zlog_debug("Rx Router Id update VRF %u Id %s", vrf_id
, buf
);
98 bgp_router_id_zebra_bump(vrf_id
, &router_id
);
102 /* Nexthop update message from zebra. */
103 static int bgp_read_nexthop_update(ZAPI_CALLBACK_ARGS
)
105 bgp_parse_nexthop_update(cmd
, vrf_id
);
109 static int bgp_read_import_check_update(ZAPI_CALLBACK_ARGS
)
111 bgp_parse_nexthop_update(cmd
, vrf_id
);
115 /* Set or clear interface on which unnumbered neighbor is configured. This
116 * would in turn cause BGP to initiate or turn off IPv6 RAs on this
119 static void bgp_update_interface_nbrs(struct bgp
*bgp
, struct interface
*ifp
,
120 struct interface
*upd_ifp
)
122 struct listnode
*node
, *nnode
;
125 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
126 if (peer
->conf_if
&& (strcmp(peer
->conf_if
, ifp
->name
) == 0)) {
129 bgp_zebra_initiate_radv(bgp
, peer
);
131 bgp_zebra_terminate_radv(bgp
, peer
);
138 static int bgp_read_fec_update(int command
, struct zclient
*zclient
,
141 bgp_parse_fec_update();
145 static void bgp_start_interface_nbrs(struct bgp
*bgp
, struct interface
*ifp
)
147 struct listnode
*node
, *nnode
;
150 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
151 if (peer
->conf_if
&& (strcmp(peer
->conf_if
, ifp
->name
) == 0)
152 && peer
->status
!= Established
) {
153 if (peer_active(peer
))
154 BGP_EVENT_ADD(peer
, BGP_Stop
);
155 BGP_EVENT_ADD(peer
, BGP_Start
);
160 static void bgp_nbr_connected_add(struct bgp
*bgp
, struct nbr_connected
*ifc
)
162 struct listnode
*node
;
163 struct connected
*connected
;
164 struct interface
*ifp
;
167 /* Kick-off the FSM for any relevant peers only if there is a
168 * valid local address on the interface.
171 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, node
, connected
)) {
172 p
= connected
->address
;
173 if (p
->family
== AF_INET6
174 && IN6_IS_ADDR_LINKLOCAL(&p
->u
.prefix6
))
180 bgp_start_interface_nbrs(bgp
, ifp
);
183 static void bgp_nbr_connected_delete(struct bgp
*bgp
, struct nbr_connected
*ifc
,
186 struct listnode
*node
, *nnode
;
188 struct interface
*ifp
;
190 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
192 && (strcmp(peer
->conf_if
, ifc
->ifp
->name
) == 0)) {
193 peer
->last_reset
= PEER_DOWN_NBR_ADDR_DEL
;
194 BGP_EVENT_ADD(peer
, BGP_Stop
);
197 /* Free neighbor also, if we're asked to. */
200 listnode_delete(ifp
->nbr_connected
, ifc
);
201 nbr_connected_free(ifc
);
205 static int bgp_ifp_destroy(struct interface
*ifp
)
209 bgp
= bgp_lookup_by_vrf_id(ifp
->vrf_id
);
211 if (BGP_DEBUG(zebra
, ZEBRA
))
212 zlog_debug("Rx Intf del VRF %u IF %s", ifp
->vrf_id
, ifp
->name
);
215 bgp_update_interface_nbrs(bgp
, ifp
, NULL
);
217 bgp_mac_del_mac_entry(ifp
);
222 static int bgp_ifp_up(struct interface
*ifp
)
225 struct nbr_connected
*nc
;
226 struct listnode
*node
, *nnode
;
229 bgp
= bgp_lookup_by_vrf_id(ifp
->vrf_id
);
231 bgp_mac_add_mac_entry(ifp
);
233 if (BGP_DEBUG(zebra
, ZEBRA
))
234 zlog_debug("Rx Intf up VRF %u IF %s", ifp
->vrf_id
, ifp
->name
);
239 for (ALL_LIST_ELEMENTS(ifp
->connected
, node
, nnode
, c
))
240 bgp_connected_add(bgp
, c
);
242 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, node
, nnode
, nc
))
243 bgp_nbr_connected_add(bgp
, nc
);
248 static int bgp_ifp_down(struct interface
*ifp
)
251 struct nbr_connected
*nc
;
252 struct listnode
*node
, *nnode
;
256 bgp
= bgp_lookup_by_vrf_id(ifp
->vrf_id
);
258 bgp_mac_del_mac_entry(ifp
);
260 if (BGP_DEBUG(zebra
, ZEBRA
))
261 zlog_debug("Rx Intf down VRF %u IF %s", ifp
->vrf_id
, ifp
->name
);
266 for (ALL_LIST_ELEMENTS(ifp
->connected
, node
, nnode
, c
))
267 bgp_connected_delete(bgp
, c
);
269 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, node
, nnode
, nc
))
270 bgp_nbr_connected_delete(bgp
, nc
, 1);
272 /* Fast external-failover */
273 if (!CHECK_FLAG(bgp
->flags
, BGP_FLAG_NO_FAST_EXT_FAILOVER
)) {
275 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
276 #if defined(HAVE_CUMULUS)
277 /* Take down directly connected EBGP peers as well as
279 * tracked (directly connected) IBGP peers.
281 if ((peer
->ttl
!= BGP_DEFAULT_TTL
)
282 && (peer
->gtsm_hops
!= 1)
284 || bgp_bfd_is_peer_multihop(peer
)))
286 /* Take down directly connected EBGP peers */
287 if ((peer
->ttl
!= BGP_DEFAULT_TTL
)
288 && (peer
->gtsm_hops
!= 1))
292 if (ifp
== peer
->nexthop
.ifp
) {
293 BGP_EVENT_ADD(peer
, BGP_Stop
);
294 peer
->last_reset
= PEER_DOWN_IF_DOWN
;
302 static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS
)
304 struct connected
*ifc
;
307 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
309 ifc
= zebra_interface_address_read(cmd
, zclient
->ibuf
, vrf_id
);
314 if (bgp_debug_zebra(ifc
->address
)) {
315 char buf
[PREFIX2STR_BUFFER
];
316 prefix2str(ifc
->address
, buf
, sizeof(buf
));
317 zlog_debug("Rx Intf address add VRF %u IF %s addr %s", vrf_id
,
318 ifc
->ifp
->name
, buf
);
324 if (if_is_operative(ifc
->ifp
)) {
325 bgp_connected_add(bgp
, ifc
);
327 /* If we have learnt of any neighbors on this interface,
328 * check to kick off any BGP interface-based neighbors,
329 * but only if this is a link-local address.
331 if (IN6_IS_ADDR_LINKLOCAL(&ifc
->address
->u
.prefix6
)
332 && !list_isempty(ifc
->ifp
->nbr_connected
))
333 bgp_start_interface_nbrs(bgp
, ifc
->ifp
);
339 static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS
)
341 struct connected
*ifc
;
344 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
346 ifc
= zebra_interface_address_read(cmd
, zclient
->ibuf
, vrf_id
);
351 if (bgp_debug_zebra(ifc
->address
)) {
352 char buf
[PREFIX2STR_BUFFER
];
353 prefix2str(ifc
->address
, buf
, sizeof(buf
));
354 zlog_debug("Rx Intf address del VRF %u IF %s addr %s", vrf_id
,
355 ifc
->ifp
->name
, buf
);
358 if (bgp
&& if_is_operative(ifc
->ifp
)) {
359 bgp_connected_delete(bgp
, ifc
);
362 connected_free(&ifc
);
367 static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS
)
369 struct nbr_connected
*ifc
= NULL
;
372 ifc
= zebra_interface_nbr_address_read(cmd
, zclient
->ibuf
, vrf_id
);
377 if (bgp_debug_zebra(ifc
->address
)) {
378 char buf
[PREFIX2STR_BUFFER
];
379 prefix2str(ifc
->address
, buf
, sizeof(buf
));
380 zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %s", vrf_id
,
381 ifc
->ifp
->name
, buf
);
384 if (if_is_operative(ifc
->ifp
)) {
385 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
387 bgp_nbr_connected_add(bgp
, ifc
);
393 static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS
)
395 struct nbr_connected
*ifc
= NULL
;
398 ifc
= zebra_interface_nbr_address_read(cmd
, zclient
->ibuf
, vrf_id
);
403 if (bgp_debug_zebra(ifc
->address
)) {
404 char buf
[PREFIX2STR_BUFFER
];
405 prefix2str(ifc
->address
, buf
, sizeof(buf
));
406 zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %s", vrf_id
,
407 ifc
->ifp
->name
, buf
);
410 if (if_is_operative(ifc
->ifp
)) {
411 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
413 bgp_nbr_connected_delete(bgp
, ifc
, 0);
416 nbr_connected_free(ifc
);
421 /* VRF update for an interface. */
422 static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS
)
424 struct interface
*ifp
;
427 struct nbr_connected
*nc
;
428 struct listnode
*node
, *nnode
;
432 ifp
= zebra_interface_vrf_update_read(zclient
->ibuf
, vrf_id
,
437 if (BGP_DEBUG(zebra
, ZEBRA
) && ifp
)
438 zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id
,
439 ifp
->name
, new_vrf_id
);
441 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
444 for (ALL_LIST_ELEMENTS(ifp
->connected
, node
, nnode
, c
))
445 bgp_connected_delete(bgp
, c
);
447 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, node
, nnode
, nc
))
448 bgp_nbr_connected_delete(bgp
, nc
, 1);
450 /* Fast external-failover */
451 if (!CHECK_FLAG(bgp
->flags
, BGP_FLAG_NO_FAST_EXT_FAILOVER
)) {
452 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
453 if ((peer
->ttl
!= BGP_DEFAULT_TTL
)
454 && (peer
->gtsm_hops
!= 1))
457 if (ifp
== peer
->nexthop
.ifp
)
458 BGP_EVENT_ADD(peer
, BGP_Stop
);
463 if_update_to_new_vrf(ifp
, new_vrf_id
);
465 bgp
= bgp_lookup_by_vrf_id(new_vrf_id
);
469 for (ALL_LIST_ELEMENTS(ifp
->connected
, node
, nnode
, c
))
470 bgp_connected_add(bgp
, c
);
472 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, node
, nnode
, nc
))
473 bgp_nbr_connected_add(bgp
, nc
);
477 /* Zebra route add and delete treatment. */
478 static int zebra_read_route(ZAPI_CALLBACK_ARGS
)
480 enum nexthop_types_t nhtype
;
481 struct zapi_route api
;
482 union g_addr nexthop
;
487 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
491 if (zapi_route_decode(zclient
->ibuf
, &api
) < 0)
494 /* we completely ignore srcdest routes for now. */
495 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
498 /* ignore link-local address. */
499 if (api
.prefix
.family
== AF_INET6
500 && IN6_IS_ADDR_LINKLOCAL(&api
.prefix
.u
.prefix6
))
503 nexthop
= api
.nexthops
[0].gate
;
504 ifindex
= api
.nexthops
[0].ifindex
;
505 nhtype
= api
.nexthops
[0].type
;
507 add
= (cmd
== ZEBRA_REDISTRIBUTE_ROUTE_ADD
);
510 * The ADD message is actually an UPDATE and there is no
512 * for a prior redistributed route, if any. So, perform an
514 * DEL processing for the same redistributed route from any
518 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++) {
520 bgp_redistribute_delete(bgp
, &api
.prefix
, i
,
524 /* Now perform the add/update. */
525 bgp_redistribute_add(bgp
, &api
.prefix
, &nexthop
, ifindex
,
526 nhtype
, api
.metric
, api
.type
, api
.instance
,
529 bgp_redistribute_delete(bgp
, &api
.prefix
, api
.type
,
533 if (bgp_debug_zebra(&api
.prefix
)) {
534 char buf
[2][PREFIX_STRLEN
];
536 prefix2str(&api
.prefix
, buf
[0], sizeof(buf
[0]));
538 inet_ntop(api
.prefix
.family
, &nexthop
, buf
[1],
541 "Rx route ADD VRF %u %s[%d] %s nexthop %s (type %d if %u) metric %u tag %" ROUTE_TAG_PRI
,
542 vrf_id
, zebra_route_string(api
.type
),
543 api
.instance
, buf
[0], buf
[1], nhtype
,
544 ifindex
, api
.metric
, api
.tag
);
547 "Rx route DEL VRF %u %s[%d] %s",
548 vrf_id
, zebra_route_string(api
.type
),
549 api
.instance
, buf
[0]);
556 struct interface
*if_lookup_by_ipv4(struct in_addr
*addr
, vrf_id_t vrf_id
)
559 struct listnode
*cnode
;
560 struct interface
*ifp
;
561 struct connected
*connected
;
562 struct prefix_ipv4 p
;
565 vrf
= vrf_lookup_by_id(vrf_id
);
571 p
.prefixlen
= IPV4_MAX_BITLEN
;
573 FOR_ALL_INTERFACES (vrf
, ifp
) {
574 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
575 cp
= connected
->address
;
577 if (cp
->family
== AF_INET
)
578 if (prefix_match(cp
, (struct prefix
*)&p
))
585 struct interface
*if_lookup_by_ipv4_exact(struct in_addr
*addr
, vrf_id_t vrf_id
)
588 struct listnode
*cnode
;
589 struct interface
*ifp
;
590 struct connected
*connected
;
593 vrf
= vrf_lookup_by_id(vrf_id
);
597 FOR_ALL_INTERFACES (vrf
, ifp
) {
598 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
599 cp
= connected
->address
;
601 if (cp
->family
== AF_INET
)
602 if (IPV4_ADDR_SAME(&cp
->u
.prefix4
, addr
))
609 struct interface
*if_lookup_by_ipv6(struct in6_addr
*addr
, ifindex_t ifindex
,
613 struct listnode
*cnode
;
614 struct interface
*ifp
;
615 struct connected
*connected
;
616 struct prefix_ipv6 p
;
619 vrf
= vrf_lookup_by_id(vrf_id
);
625 p
.prefixlen
= IPV6_MAX_BITLEN
;
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_INET6
)
632 if (prefix_match(cp
, (struct prefix
*)&p
)) {
633 if (IN6_IS_ADDR_LINKLOCAL(
635 if (ifindex
== ifp
->ifindex
)
645 struct interface
*if_lookup_by_ipv6_exact(struct in6_addr
*addr
,
646 ifindex_t ifindex
, vrf_id_t vrf_id
)
649 struct listnode
*cnode
;
650 struct interface
*ifp
;
651 struct connected
*connected
;
654 vrf
= vrf_lookup_by_id(vrf_id
);
658 FOR_ALL_INTERFACES (vrf
, ifp
) {
659 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
660 cp
= connected
->address
;
662 if (cp
->family
== AF_INET6
)
663 if (IPV6_ADDR_SAME(&cp
->u
.prefix6
, addr
)) {
664 if (IN6_IS_ADDR_LINKLOCAL(
666 if (ifindex
== ifp
->ifindex
)
676 static int if_get_ipv6_global(struct interface
*ifp
, struct in6_addr
*addr
)
678 struct listnode
*cnode
;
679 struct connected
*connected
;
682 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
683 cp
= connected
->address
;
685 if (cp
->family
== AF_INET6
)
686 if (!IN6_IS_ADDR_LINKLOCAL(&cp
->u
.prefix6
)) {
687 memcpy(addr
, &cp
->u
.prefix6
, IPV6_MAX_BYTELEN
);
694 static int if_get_ipv6_local(struct interface
*ifp
, struct in6_addr
*addr
)
696 struct listnode
*cnode
;
697 struct connected
*connected
;
700 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
701 cp
= connected
->address
;
703 if (cp
->family
== AF_INET6
)
704 if (IN6_IS_ADDR_LINKLOCAL(&cp
->u
.prefix6
)) {
705 memcpy(addr
, &cp
->u
.prefix6
, IPV6_MAX_BYTELEN
);
712 static int if_get_ipv4_address(struct interface
*ifp
, struct in_addr
*addr
)
714 struct listnode
*cnode
;
715 struct connected
*connected
;
718 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
719 cp
= connected
->address
;
720 if ((cp
->family
== AF_INET
)
721 && !ipv4_martian(&(cp
->u
.prefix4
))) {
722 *addr
= cp
->u
.prefix4
;
730 bool bgp_zebra_nexthop_set(union sockunion
*local
, union sockunion
*remote
,
731 struct bgp_nexthop
*nexthop
, struct peer
*peer
)
734 struct interface
*ifp
= NULL
;
736 memset(nexthop
, 0, sizeof(struct bgp_nexthop
));
743 if (local
->sa
.sa_family
== AF_INET
) {
744 nexthop
->v4
= local
->sin
.sin_addr
;
746 ifp
= if_lookup_by_name(peer
->update_if
,
749 ifp
= if_lookup_by_ipv4_exact(&local
->sin
.sin_addr
,
752 if (local
->sa
.sa_family
== AF_INET6
) {
753 memcpy(&nexthop
->v6_global
, &local
->sin6
.sin6_addr
, IPV6_MAX_BYTELEN
);
754 if (IN6_IS_ADDR_LINKLOCAL(&local
->sin6
.sin6_addr
)) {
755 if (peer
->conf_if
|| peer
->ifname
)
756 ifp
= if_lookup_by_name(peer
->conf_if
760 } else if (peer
->update_if
)
761 ifp
= if_lookup_by_name(peer
->update_if
,
764 ifp
= if_lookup_by_ipv6_exact(&local
->sin6
.sin6_addr
,
765 local
->sin6
.sin6_scope_id
,
771 * BGP views do not currently get proper data
772 * from zebra( when attached ) to be able to
773 * properly resolve nexthops, so give this
774 * instance type a pass.
776 if (peer
->bgp
->inst_type
== BGP_INSTANCE_TYPE_VIEW
)
779 * If we have no interface data but we have established
780 * some connection w/ zebra than something has gone
781 * terribly terribly wrong here, so say this failed
782 * If we do not any zebra connection then not
783 * having a ifp pointer is ok.
785 return zclient_num_connects
? false : true;
790 /* IPv4 connection, fetch and store IPv6 local address(es) if any. */
791 if (local
->sa
.sa_family
== AF_INET
) {
793 ret
= if_get_ipv6_global(ifp
, &nexthop
->v6_global
);
796 /* There is no global nexthop. Use link-local address as
798 * global and link-local nexthop. In this scenario, the
800 * for interop is that the network admin would use a
802 * specify the global IPv6 nexthop.
804 if_get_ipv6_local(ifp
, &nexthop
->v6_global
);
805 memcpy(&nexthop
->v6_local
, &nexthop
->v6_global
,
808 if_get_ipv6_local(ifp
, &nexthop
->v6_local
);
810 if (if_lookup_by_ipv4(&remote
->sin
.sin_addr
, peer
->bgp
->vrf_id
))
811 peer
->shared_network
= 1;
813 peer
->shared_network
= 0;
816 /* IPv6 connection, fetch and store IPv4 local address if any. */
817 if (local
->sa
.sa_family
== AF_INET6
) {
818 struct interface
*direct
= NULL
;
821 ret
= if_get_ipv4_address(ifp
, &nexthop
->v4
);
822 if (!ret
&& peer
->local_id
.s_addr
)
823 nexthop
->v4
= peer
->local_id
;
826 if (!IN6_IS_ADDR_LINKLOCAL(&local
->sin6
.sin6_addr
)) {
827 memcpy(&nexthop
->v6_global
, &local
->sin6
.sin6_addr
,
830 /* If directory connected set link-local address. */
831 direct
= if_lookup_by_ipv6(&remote
->sin6
.sin6_addr
,
832 remote
->sin6
.sin6_scope_id
,
835 if_get_ipv6_local(ifp
, &nexthop
->v6_local
);
837 /* Link-local address. */
839 ret
= if_get_ipv6_global(ifp
, &nexthop
->v6_global
);
841 /* If there is no global address. Set link-local
843 global. I know this break RFC specification... */
844 /* In this scenario, the expectation for interop is that
846 * network admin would use a route-map to specify the
851 memcpy(&nexthop
->v6_global
,
852 &local
->sin6
.sin6_addr
,
854 /* Always set the link-local address */
855 memcpy(&nexthop
->v6_local
, &local
->sin6
.sin6_addr
,
859 if (IN6_IS_ADDR_LINKLOCAL(&local
->sin6
.sin6_addr
)
860 || if_lookup_by_ipv6(&remote
->sin6
.sin6_addr
,
861 remote
->sin6
.sin6_scope_id
,
863 peer
->shared_network
= 1;
865 peer
->shared_network
= 0;
868 /* KAME stack specific treatment. */
870 if (IN6_IS_ADDR_LINKLOCAL(&nexthop
->v6_global
)
871 && IN6_LINKLOCAL_IFINDEX(nexthop
->v6_global
)) {
872 SET_IN6_LINKLOCAL_IFINDEX(nexthop
->v6_global
, 0);
874 if (IN6_IS_ADDR_LINKLOCAL(&nexthop
->v6_local
)
875 && IN6_LINKLOCAL_IFINDEX(nexthop
->v6_local
)) {
876 SET_IN6_LINKLOCAL_IFINDEX(nexthop
->v6_local
, 0);
880 /* If we have identified the local interface, there is no error for now.
885 static struct in6_addr
*
886 bgp_path_info_to_ipv6_nexthop(struct bgp_path_info
*path
, ifindex_t
*ifindex
)
888 struct in6_addr
*nexthop
= NULL
;
890 /* Only global address nexthop exists. */
891 if (path
->attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_IPV6_GLOBAL
892 || path
->attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_VPNV6_GLOBAL
) {
893 nexthop
= &path
->attr
->mp_nexthop_global
;
894 if (IN6_IS_ADDR_LINKLOCAL(nexthop
))
895 *ifindex
= path
->attr
->nh_ifindex
;
898 /* If both global and link-local address present. */
899 if (path
->attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
900 || path
->attr
->mp_nexthop_len
901 == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL
) {
902 /* Check if route-map is set to prefer global over link-local */
903 if (path
->attr
->mp_nexthop_prefer_global
) {
904 nexthop
= &path
->attr
->mp_nexthop_global
;
905 if (IN6_IS_ADDR_LINKLOCAL(nexthop
))
906 *ifindex
= path
->attr
->nh_ifindex
;
908 /* Workaround for Cisco's nexthop bug. */
909 if (IN6_IS_ADDR_UNSPECIFIED(
910 &path
->attr
->mp_nexthop_global
)
911 && path
->peer
->su_remote
->sa
.sa_family
914 &path
->peer
->su_remote
->sin6
.sin6_addr
;
915 if (IN6_IS_ADDR_LINKLOCAL(nexthop
))
916 *ifindex
= path
->peer
->nexthop
.ifp
919 nexthop
= &path
->attr
->mp_nexthop_local
;
920 if (IN6_IS_ADDR_LINKLOCAL(nexthop
))
921 *ifindex
= path
->attr
->nh_lla_ifindex
;
929 static int bgp_table_map_apply(struct route_map
*map
, struct prefix
*p
,
930 struct bgp_path_info
*path
)
932 route_map_result_t ret
;
934 ret
= route_map_apply(map
, p
, RMAP_BGP
, path
);
935 bgp_attr_flush(path
->attr
);
937 if (ret
!= RMAP_DENYMATCH
)
940 if (bgp_debug_zebra(p
)) {
941 if (p
->family
== AF_INET
) {
942 char buf
[2][INET_ADDRSTRLEN
];
944 "Zebra rmap deny: IPv4 route %s/%d nexthop %s",
945 inet_ntop(AF_INET
, &p
->u
.prefix4
, buf
[0],
948 inet_ntop(AF_INET
, &path
->attr
->nexthop
, buf
[1],
951 if (p
->family
== AF_INET6
) {
952 char buf
[2][INET6_ADDRSTRLEN
];
954 struct in6_addr
*nexthop
;
956 nexthop
= bgp_path_info_to_ipv6_nexthop(path
, &ifindex
);
958 "Zebra rmap deny: IPv6 route %s/%d nexthop %s",
959 inet_ntop(AF_INET6
, &p
->u
.prefix6
, buf
[0],
962 inet_ntop(AF_INET6
, nexthop
,
963 buf
[1], sizeof(buf
[1])));
969 static struct thread
*bgp_tm_thread_connect
;
970 static bool bgp_tm_status_connected
;
971 static bool bgp_tm_chunk_obtained
;
972 #define BGP_FLOWSPEC_TABLE_CHUNK 100000
973 static uint32_t bgp_tm_min
, bgp_tm_max
, bgp_tm_chunk_size
;
974 struct bgp
*bgp_tm_bgp
;
976 static int bgp_zebra_tm_connect(struct thread
*t
)
978 struct zclient
*zclient
;
979 int delay
= 10, ret
= 0;
981 zclient
= THREAD_ARG(t
);
982 if (bgp_tm_status_connected
&& zclient
->sock
> 0)
985 bgp_tm_status_connected
= false;
986 ret
= tm_table_manager_connect(zclient
);
989 zlog_info("Error connecting to table manager!");
990 bgp_tm_status_connected
= false;
992 if (!bgp_tm_status_connected
)
993 zlog_debug("Connecting to table manager. Success");
994 bgp_tm_status_connected
= true;
995 if (!bgp_tm_chunk_obtained
) {
996 if (bgp_zebra_get_table_range(bgp_tm_chunk_size
,
999 bgp_tm_chunk_obtained
= true;
1000 /* parse non installed entries */
1001 bgp_zebra_announce_table(bgp_tm_bgp
, AFI_IP
, SAFI_FLOWSPEC
);
1005 thread_add_timer(bm
->master
, bgp_zebra_tm_connect
, zclient
, delay
,
1006 &bgp_tm_thread_connect
);
1010 bool bgp_zebra_tm_chunk_obtained(void)
1012 return bgp_tm_chunk_obtained
;
1015 uint32_t bgp_zebra_tm_get_id(void)
1017 static int table_id
;
1019 if (!bgp_tm_chunk_obtained
)
1021 return bgp_tm_min
++;
1024 void bgp_zebra_init_tm_connect(struct bgp
*bgp
)
1028 /* if already set, do nothing
1030 if (bgp_tm_thread_connect
!= NULL
)
1032 bgp_tm_status_connected
= false;
1033 bgp_tm_chunk_obtained
= false;
1034 bgp_tm_min
= bgp_tm_max
= 0;
1035 bgp_tm_chunk_size
= BGP_FLOWSPEC_TABLE_CHUNK
;
1037 thread_add_timer(bm
->master
, bgp_zebra_tm_connect
, zclient
, delay
,
1038 &bgp_tm_thread_connect
);
1041 int bgp_zebra_get_table_range(uint32_t chunk_size
,
1042 uint32_t *start
, uint32_t *end
)
1046 if (!bgp_tm_status_connected
)
1048 ret
= tm_get_table_chunk(zclient
, chunk_size
, start
, end
);
1050 flog_err(EC_BGP_TABLE_CHUNK
,
1051 "BGP: Error getting table chunk %u", chunk_size
);
1054 zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]",
1055 chunk_size
, *start
, *end
);
1059 static int update_ipv4nh_for_route_install(int nh_othervrf
,
1061 struct in_addr
*nexthop
,
1064 struct zapi_nexthop
*api_nh
)
1066 api_nh
->gate
.ipv4
= *nexthop
;
1067 api_nh
->vrf_id
= nh_bgp
->vrf_id
;
1069 /* Need to set fields appropriately for EVPN routes imported into
1070 * a VRF (which are programmed as onlink on l3-vni SVI) as well as
1071 * connected routes leaked into a VRF.
1074 api_nh
->type
= NEXTHOP_TYPE_IPV4_IFINDEX
;
1075 SET_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_ONLINK
);
1076 api_nh
->ifindex
= nh_bgp
->l3vni_svi_ifindex
;
1077 } else if (nh_othervrf
&&
1078 api_nh
->gate
.ipv4
.s_addr
== INADDR_ANY
) {
1079 api_nh
->type
= NEXTHOP_TYPE_IFINDEX
;
1080 api_nh
->ifindex
= attr
->nh_ifindex
;
1082 api_nh
->type
= NEXTHOP_TYPE_IPV4
;
1088 update_ipv6nh_for_route_install(int nh_othervrf
, struct bgp
*nh_bgp
,
1089 struct in6_addr
*nexthop
,
1090 ifindex_t ifindex
, struct bgp_path_info
*pi
,
1091 struct bgp_path_info
*best_pi
, bool is_evpn
,
1092 struct zapi_nexthop
*api_nh
)
1097 api_nh
->vrf_id
= nh_bgp
->vrf_id
;
1100 api_nh
->type
= NEXTHOP_TYPE_IPV6_IFINDEX
;
1101 SET_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_ONLINK
);
1102 api_nh
->ifindex
= nh_bgp
->l3vni_svi_ifindex
;
1103 } else if (nh_othervrf
) {
1104 if (IN6_IS_ADDR_UNSPECIFIED(nexthop
)) {
1105 api_nh
->type
= NEXTHOP_TYPE_IFINDEX
;
1106 api_nh
->ifindex
= attr
->nh_ifindex
;
1107 } else if (IN6_IS_ADDR_LINKLOCAL(nexthop
)) {
1110 api_nh
->type
= NEXTHOP_TYPE_IPV6_IFINDEX
;
1111 api_nh
->ifindex
= ifindex
;
1113 api_nh
->type
= NEXTHOP_TYPE_IPV6
;
1114 api_nh
->ifindex
= 0;
1117 if (IN6_IS_ADDR_LINKLOCAL(nexthop
)) {
1119 && attr
->mp_nexthop_len
1120 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
)
1121 if (pi
->peer
->nexthop
.ifp
)
1123 pi
->peer
->nexthop
.ifp
->ifindex
;
1125 if (pi
->peer
->conf_if
)
1126 ifindex
= pi
->peer
->ifp
->ifindex
;
1127 else if (pi
->peer
->ifname
)
1128 ifindex
= ifname2ifindex(
1130 pi
->peer
->bgp
->vrf_id
);
1131 else if (pi
->peer
->nexthop
.ifp
)
1133 pi
->peer
->nexthop
.ifp
->ifindex
;
1138 api_nh
->type
= NEXTHOP_TYPE_IPV6_IFINDEX
;
1139 api_nh
->ifindex
= ifindex
;
1141 api_nh
->type
= NEXTHOP_TYPE_IPV6
;
1142 api_nh
->ifindex
= 0;
1145 api_nh
->gate
.ipv6
= *nexthop
;
1150 void bgp_zebra_announce(struct bgp_node
*rn
, struct prefix
*p
,
1151 struct bgp_path_info
*info
, struct bgp
*bgp
, afi_t afi
,
1154 struct zapi_route api
;
1155 struct zapi_nexthop
*api_nh
;
1157 unsigned int valid_nh_count
= 0;
1158 int has_valid_label
= 0;
1161 struct bgp_path_info
*mpinfo
;
1163 struct attr local_attr
;
1164 struct bgp_path_info local_info
;
1165 struct bgp_path_info
*mpinfo_cp
= &local_info
;
1168 int nh_othervrf
= 0;
1169 char buf_prefix
[PREFIX_STRLEN
]; /* filled in if we are debugging */
1173 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1174 * know of this instance.
1176 if (!bgp_install_info_to_zebra(bgp
))
1179 if (bgp
->main_zebra_update_hold
)
1182 if (bgp_debug_zebra(p
))
1183 prefix2str(p
, buf_prefix
, sizeof(buf_prefix
));
1185 if (safi
== SAFI_FLOWSPEC
) {
1186 bgp_pbr_update_entry(bgp
, &rn
->p
, info
, afi
, safi
, true);
1191 * vrf leaking support (will have only one nexthop)
1193 if (info
->extra
&& info
->extra
->bgp_orig
)
1196 /* Make Zebra API structure. */
1197 memset(&api
, 0, sizeof(api
));
1198 api
.vrf_id
= bgp
->vrf_id
;
1199 api
.type
= ZEBRA_ROUTE_BGP
;
1202 SET_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
);
1206 if (info
->type
== ZEBRA_ROUTE_BGP
1207 && info
->sub_type
== BGP_ROUTE_IMPORTED
) {
1209 /* Obtain peer from parent */
1210 if (info
->extra
&& info
->extra
->parent
)
1211 peer
= ((struct bgp_path_info
*)(info
->extra
->parent
))
1215 tag
= info
->attr
->tag
;
1217 /* If the route's source is EVPN, flag as such. */
1218 is_evpn
= is_route_parent_evpn(info
);
1220 SET_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
);
1222 if (peer
->sort
== BGP_PEER_IBGP
|| peer
->sort
== BGP_PEER_CONFED
1223 || info
->sub_type
== BGP_ROUTE_AGGREGATE
) {
1224 SET_FLAG(api
.flags
, ZEBRA_FLAG_IBGP
);
1225 SET_FLAG(api
.flags
, ZEBRA_FLAG_ALLOW_RECURSION
);
1228 if ((peer
->sort
== BGP_PEER_EBGP
&& peer
->ttl
!= BGP_DEFAULT_TTL
)
1229 || CHECK_FLAG(peer
->flags
, PEER_FLAG_DISABLE_CONNECTED_CHECK
)
1230 || bgp_flag_check(bgp
, BGP_FLAG_DISABLE_NH_CONNECTED_CHK
))
1232 SET_FLAG(api
.flags
, ZEBRA_FLAG_ALLOW_RECURSION
);
1234 if (info
->attr
->rmap_table_id
) {
1235 SET_FLAG(api
.message
, ZAPI_MESSAGE_TABLEID
);
1236 api
.tableid
= info
->attr
->rmap_table_id
;
1239 /* Metric is currently based on the best-path only */
1240 metric
= info
->attr
->med
;
1241 for (mpinfo
= info
; mpinfo
; mpinfo
= bgp_path_info_mpath_next(mpinfo
)) {
1242 if (valid_nh_count
>= multipath_num
)
1245 *mpinfo_cp
= *mpinfo
;
1247 /* Get nexthop address-family */
1248 if (p
->family
== AF_INET
1249 && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp
->attr
))
1250 nh_family
= AF_INET
;
1251 else if (p
->family
== AF_INET6
1252 || (p
->family
== AF_INET
1253 && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp
->attr
)))
1254 nh_family
= AF_INET6
;
1258 api_nh
= &api
.nexthops
[valid_nh_count
];
1259 if (nh_family
== AF_INET
) {
1260 if (bgp_debug_zebra(&api
.prefix
)) {
1261 if (mpinfo
->extra
) {
1263 "%s: p=%s, bgp_is_valid_label: %d",
1264 __func__
, buf_prefix
,
1270 "%s: p=%s, extra is NULL, no label",
1271 __func__
, buf_prefix
);
1275 if (bgp
->table_map
[afi
][safi
].name
) {
1276 /* Copy info and attributes, so the route-map
1277 apply doesn't modify the BGP route info. */
1278 local_attr
= *mpinfo
->attr
;
1279 mpinfo_cp
->attr
= &local_attr
;
1282 if (bgp
->table_map
[afi
][safi
].name
) {
1283 if (!bgp_table_map_apply(
1284 bgp
->table_map
[afi
][safi
].map
, p
,
1288 /* metric/tag is only allowed to be
1289 * overridden on 1st nexthop */
1290 if (mpinfo
== info
) {
1291 metric
= mpinfo_cp
->attr
->med
;
1292 tag
= mpinfo_cp
->attr
->tag
;
1296 nh_updated
= update_ipv4nh_for_route_install(
1299 info
->extra
->bgp_orig
: bgp
,
1300 &mpinfo_cp
->attr
->nexthop
,
1301 mpinfo_cp
->attr
, is_evpn
, api_nh
);
1303 ifindex_t ifindex
= IFINDEX_INTERNAL
;
1304 struct in6_addr
*nexthop
;
1306 if (bgp
->table_map
[afi
][safi
].name
) {
1307 /* Copy info and attributes, so the route-map
1308 apply doesn't modify the BGP route info. */
1309 local_attr
= *mpinfo
->attr
;
1310 mpinfo_cp
->attr
= &local_attr
;
1313 if (bgp
->table_map
[afi
][safi
].name
) {
1314 /* Copy info and attributes, so the route-map
1315 apply doesn't modify the BGP route info. */
1316 local_attr
= *mpinfo
->attr
;
1317 mpinfo_cp
->attr
= &local_attr
;
1319 if (!bgp_table_map_apply(
1320 bgp
->table_map
[afi
][safi
].map
, p
,
1324 /* metric/tag is only allowed to be
1325 * overridden on 1st nexthop */
1326 if (mpinfo
== info
) {
1327 metric
= mpinfo_cp
->attr
->med
;
1328 tag
= mpinfo_cp
->attr
->tag
;
1331 nexthop
= bgp_path_info_to_ipv6_nexthop(mpinfo_cp
,
1333 nh_updated
= update_ipv6nh_for_route_install(
1334 nh_othervrf
, nh_othervrf
?
1335 info
->extra
->bgp_orig
: bgp
,
1337 mpinfo
, info
, is_evpn
, api_nh
);
1340 /* Did we get proper nexthop info to update zebra? */
1345 && bgp_is_valid_label(&mpinfo
->extra
->label
[0])
1346 && !CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
)) {
1347 has_valid_label
= 1;
1348 label
= label_pton(&mpinfo
->extra
->label
[0]);
1350 SET_FLAG(api_nh
->flags
, ZAPI_NEXTHOP_FLAG_LABEL
);
1352 api_nh
->label_num
= 1;
1353 api_nh
->labels
[0] = label
;
1355 memcpy(&api_nh
->rmac
, &(mpinfo
->attr
->rmac
),
1356 sizeof(struct ethaddr
));
1361 * When we create an aggregate route we must also
1362 * install a Null0 route in the RIB, so overwrite
1363 * what was written into api with a blackhole route
1365 if (info
->sub_type
== BGP_ROUTE_AGGREGATE
)
1366 zapi_route_set_blackhole(&api
, BLACKHOLE_NULL
);
1368 api
.nexthop_num
= valid_nh_count
;
1370 SET_FLAG(api
.message
, ZAPI_MESSAGE_METRIC
);
1371 api
.metric
= metric
;
1374 SET_FLAG(api
.message
, ZAPI_MESSAGE_TAG
);
1378 distance
= bgp_distance_apply(p
, info
, afi
, safi
, bgp
);
1380 SET_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
);
1381 api
.distance
= distance
;
1384 if (bgp_debug_zebra(p
)) {
1385 char prefix_buf
[PREFIX_STRLEN
];
1386 char nh_buf
[INET6_ADDRSTRLEN
];
1387 char eth_buf
[ETHER_ADDR_STRLEN
+ 7] = {'\0'};
1388 char buf1
[ETHER_ADDR_STRLEN
];
1392 prefix2str(&api
.prefix
, prefix_buf
, sizeof(prefix_buf
));
1393 zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI
1395 valid_nh_count
? "add" : "delete", bgp
->vrf_id
,
1396 prefix_buf
, api
.metric
, api
.tag
, api
.nexthop_num
);
1397 for (i
= 0; i
< api
.nexthop_num
; i
++) {
1398 api_nh
= &api
.nexthops
[i
];
1400 switch (api_nh
->type
) {
1401 case NEXTHOP_TYPE_IFINDEX
:
1404 case NEXTHOP_TYPE_IPV4
:
1405 case NEXTHOP_TYPE_IPV4_IFINDEX
:
1406 nh_family
= AF_INET
;
1407 inet_ntop(nh_family
, &api_nh
->gate
, nh_buf
,
1410 case NEXTHOP_TYPE_IPV6
:
1411 case NEXTHOP_TYPE_IPV6_IFINDEX
:
1412 nh_family
= AF_INET6
;
1413 inet_ntop(nh_family
, &api_nh
->gate
, nh_buf
,
1416 case NEXTHOP_TYPE_BLACKHOLE
:
1417 strlcpy(nh_buf
, "blackhole", sizeof(nh_buf
));
1420 /* Note: add new nexthop case */
1425 label_buf
[0] = '\0';
1428 && !CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
))
1429 snprintf(label_buf
, sizeof(label_buf
),
1430 "label %u", api_nh
->labels
[0]);
1431 if (CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
)
1432 && !is_zero_mac(&api_nh
->rmac
))
1433 snprintf(eth_buf
, sizeof(eth_buf
), " RMAC %s",
1434 prefix_mac2str(&api_nh
->rmac
,
1435 buf1
, sizeof(buf1
)));
1436 zlog_debug(" nhop [%d]: %s if %u VRF %u %s %s",
1437 i
+ 1, nh_buf
, api_nh
->ifindex
,
1438 api_nh
->vrf_id
, label_buf
, eth_buf
);
1442 if (bgp_debug_zebra(p
)) {
1443 int recursion_flag
= 0;
1445 if (CHECK_FLAG(api
.flags
, ZEBRA_FLAG_ALLOW_RECURSION
))
1448 zlog_debug("%s: %s: announcing to zebra (recursion %sset)",
1449 __func__
, buf_prefix
,
1450 (recursion_flag
? "" : "NOT "));
1452 zclient_route_send(valid_nh_count
? ZEBRA_ROUTE_ADD
1453 : ZEBRA_ROUTE_DELETE
,
1457 /* Announce all routes of a table to zebra */
1458 void bgp_zebra_announce_table(struct bgp
*bgp
, afi_t afi
, safi_t safi
)
1460 struct bgp_node
*rn
;
1461 struct bgp_table
*table
;
1462 struct bgp_path_info
*pi
;
1464 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1465 * know of this instance.
1467 if (!bgp_install_info_to_zebra(bgp
))
1470 table
= bgp
->rib
[afi
][safi
];
1474 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
))
1475 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
)
1476 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
) &&
1478 (pi
->type
== ZEBRA_ROUTE_BGP
1479 && (pi
->sub_type
== BGP_ROUTE_NORMAL
1480 || pi
->sub_type
== BGP_ROUTE_IMPORTED
)))
1482 bgp_zebra_announce(rn
, &rn
->p
, pi
, bgp
, afi
,
1486 void bgp_zebra_withdraw(struct prefix
*p
, struct bgp_path_info
*info
,
1487 struct bgp
*bgp
, safi_t safi
)
1489 struct zapi_route api
;
1492 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1493 * know of this instance.
1495 if (!bgp_install_info_to_zebra(bgp
))
1498 if (safi
== SAFI_FLOWSPEC
) {
1500 bgp_pbr_update_entry(peer
->bgp
, p
, info
, AFI_IP
, safi
, false);
1504 memset(&api
, 0, sizeof(api
));
1505 api
.vrf_id
= bgp
->vrf_id
;
1506 api
.type
= ZEBRA_ROUTE_BGP
;
1510 if (info
->attr
->rmap_table_id
) {
1511 SET_FLAG(api
.message
, ZAPI_MESSAGE_TABLEID
);
1512 api
.tableid
= info
->attr
->rmap_table_id
;
1515 /* If the route's source is EVPN, flag as such. */
1516 if (is_route_parent_evpn(info
))
1517 SET_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
);
1519 if (bgp_debug_zebra(p
)) {
1520 char buf
[PREFIX_STRLEN
];
1522 prefix2str(&api
.prefix
, buf
, sizeof(buf
));
1523 zlog_debug("Tx route delete VRF %u %s", bgp
->vrf_id
, buf
);
1526 zclient_route_send(ZEBRA_ROUTE_DELETE
, zclient
, &api
);
1529 struct bgp_redist
*bgp_redist_lookup(struct bgp
*bgp
, afi_t afi
, uint8_t type
,
1530 unsigned short instance
)
1532 struct list
*red_list
;
1533 struct listnode
*node
;
1534 struct bgp_redist
*red
;
1536 red_list
= bgp
->redist
[afi
][type
];
1540 for (ALL_LIST_ELEMENTS_RO(red_list
, node
, red
))
1541 if (red
->instance
== instance
)
1547 struct bgp_redist
*bgp_redist_add(struct bgp
*bgp
, afi_t afi
, uint8_t type
,
1548 unsigned short instance
)
1550 struct list
*red_list
;
1551 struct bgp_redist
*red
;
1553 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
1557 if (!bgp
->redist
[afi
][type
])
1558 bgp
->redist
[afi
][type
] = list_new();
1560 red_list
= bgp
->redist
[afi
][type
];
1561 red
= XCALLOC(MTYPE_BGP_REDIST
, sizeof(struct bgp_redist
));
1562 red
->instance
= instance
;
1564 listnode_add(red_list
, red
);
1569 static void bgp_redist_del(struct bgp
*bgp
, afi_t afi
, uint8_t type
,
1570 unsigned short instance
)
1572 struct bgp_redist
*red
;
1574 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
1577 listnode_delete(bgp
->redist
[afi
][type
], red
);
1578 XFREE(MTYPE_BGP_REDIST
, red
);
1579 if (!bgp
->redist
[afi
][type
]->count
)
1580 list_delete(&bgp
->redist
[afi
][type
]);
1584 /* Other routes redistribution into BGP. */
1585 int bgp_redistribute_set(struct bgp
*bgp
, afi_t afi
, int type
,
1586 unsigned short instance
, bool changed
)
1588 /* If redistribute options are changed call
1589 * bgp_redistribute_unreg() to reset the option and withdraw
1593 bgp_redistribute_unreg(bgp
, afi
, type
, instance
);
1595 /* Return if already redistribute flag is set. */
1597 if (redist_check_instance(&zclient
->mi_redist
[afi
][type
],
1601 redist_add_instance(&zclient
->mi_redist
[afi
][type
], instance
);
1603 if (vrf_bitmap_check(zclient
->redist
[afi
][type
], bgp
->vrf_id
))
1607 if (EVPN_ENABLED(bgp
) && type
== ZEBRA_ROUTE_VNC_DIRECT
) {
1608 vnc_export_bgp_enable(
1609 bgp
, afi
); /* only enables if mode bits cfg'd */
1613 vrf_bitmap_set(zclient
->redist
[afi
][type
], bgp
->vrf_id
);
1617 * Don't try to register if we're not connected to Zebra or Zebra
1618 * doesn't know of this instance.
1620 * When we come up later well resend if needed.
1622 if (!bgp_install_info_to_zebra(bgp
))
1625 if (BGP_DEBUG(zebra
, ZEBRA
))
1626 zlog_debug("Tx redistribute add VRF %u afi %d %s %d",
1627 bgp
->vrf_id
, afi
, zebra_route_string(type
),
1630 /* Send distribute add message to zebra. */
1631 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD
, zclient
, afi
, type
,
1632 instance
, bgp
->vrf_id
);
1637 int bgp_redistribute_resend(struct bgp
*bgp
, afi_t afi
, int type
,
1638 unsigned short instance
)
1640 /* Don't try to send if we're not connected to Zebra or Zebra doesn't
1641 * know of this instance.
1643 if (!bgp_install_info_to_zebra(bgp
))
1646 if (BGP_DEBUG(zebra
, ZEBRA
))
1647 zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d",
1648 bgp
->vrf_id
, afi
, zebra_route_string(type
),
1651 /* Send distribute add message to zebra. */
1652 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE
, zclient
, afi
, type
,
1653 instance
, bgp
->vrf_id
);
1654 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD
, zclient
, afi
, type
,
1655 instance
, bgp
->vrf_id
);
1660 /* Redistribute with route-map specification. */
1661 int bgp_redistribute_rmap_set(struct bgp_redist
*red
, const char *name
,
1662 struct route_map
*route_map
)
1664 if (red
->rmap
.name
&& (strcmp(red
->rmap
.name
, name
) == 0))
1667 XFREE(MTYPE_ROUTE_MAP_NAME
, red
->rmap
.name
);
1668 /* Decrement the count for existing routemap and
1669 * increment the count for new route map.
1671 route_map_counter_decrement(red
->rmap
.map
);
1672 red
->rmap
.name
= XSTRDUP(MTYPE_ROUTE_MAP_NAME
, name
);
1673 red
->rmap
.map
= route_map
;
1674 route_map_counter_increment(red
->rmap
.map
);
1679 /* Redistribute with metric specification. */
1680 int bgp_redistribute_metric_set(struct bgp
*bgp
, struct bgp_redist
*red
,
1681 afi_t afi
, int type
, uint32_t metric
)
1683 struct bgp_node
*rn
;
1684 struct bgp_path_info
*pi
;
1686 if (red
->redist_metric_flag
&& red
->redist_metric
== metric
)
1689 red
->redist_metric_flag
= 1;
1690 red
->redist_metric
= metric
;
1692 for (rn
= bgp_table_top(bgp
->rib
[afi
][SAFI_UNICAST
]); rn
;
1693 rn
= bgp_route_next(rn
)) {
1694 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
) {
1695 if (pi
->sub_type
== BGP_ROUTE_REDISTRIBUTE
1697 && pi
->instance
== red
->instance
) {
1698 struct attr
*old_attr
;
1699 struct attr new_attr
;
1701 new_attr
= *pi
->attr
;
1702 new_attr
.med
= red
->redist_metric
;
1703 old_attr
= pi
->attr
;
1704 pi
->attr
= bgp_attr_intern(&new_attr
);
1705 bgp_attr_unintern(&old_attr
);
1707 bgp_path_info_set_flag(rn
, pi
,
1708 BGP_PATH_ATTR_CHANGED
);
1709 bgp_process(bgp
, rn
, afi
, SAFI_UNICAST
);
1717 /* Unset redistribution. */
1718 int bgp_redistribute_unreg(struct bgp
*bgp
, afi_t afi
, int type
,
1719 unsigned short instance
)
1721 struct bgp_redist
*red
;
1723 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
1727 /* Return if zebra connection is disabled. */
1729 if (!redist_check_instance(&zclient
->mi_redist
[afi
][type
],
1732 redist_del_instance(&zclient
->mi_redist
[afi
][type
], instance
);
1734 if (!vrf_bitmap_check(zclient
->redist
[afi
][type
], bgp
->vrf_id
))
1736 vrf_bitmap_unset(zclient
->redist
[afi
][type
], bgp
->vrf_id
);
1740 if (bgp_install_info_to_zebra(bgp
)) {
1741 /* Send distribute delete message to zebra. */
1742 if (BGP_DEBUG(zebra
, ZEBRA
))
1743 zlog_debug("Tx redistribute del VRF %u afi %d %s %d",
1744 bgp
->vrf_id
, afi
, zebra_route_string(type
),
1746 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE
, zclient
, afi
,
1747 type
, instance
, bgp
->vrf_id
);
1750 /* Withdraw redistributed routes from current BGP's routing table. */
1751 bgp_redistribute_withdraw(bgp
, afi
, type
, instance
);
1756 /* Unset redistribution. */
1757 int bgp_redistribute_unset(struct bgp
*bgp
, afi_t afi
, int type
,
1758 unsigned short instance
)
1760 struct bgp_redist
*red
;
1763 * vnc and vpn->vrf checks must be before red check because
1764 * they operate within bgpd irrespective of zebra connection
1765 * status. red lookup fails if there is no zebra connection.
1768 if (EVPN_ENABLED(bgp
) && type
== ZEBRA_ROUTE_VNC_DIRECT
) {
1769 vnc_export_bgp_disable(bgp
, afi
);
1773 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
1777 bgp_redistribute_unreg(bgp
, afi
, type
, instance
);
1779 /* Unset route-map. */
1780 XFREE(MTYPE_ROUTE_MAP_NAME
, red
->rmap
.name
);
1781 route_map_counter_decrement(red
->rmap
.map
);
1782 red
->rmap
.map
= NULL
;
1785 red
->redist_metric_flag
= 0;
1786 red
->redist_metric
= 0;
1788 bgp_redist_del(bgp
, afi
, type
, instance
);
1793 void bgp_redistribute_redo(struct bgp
*bgp
)
1797 struct list
*red_list
;
1798 struct listnode
*node
;
1799 struct bgp_redist
*red
;
1801 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
1802 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++) {
1804 red_list
= bgp
->redist
[afi
][i
];
1808 for (ALL_LIST_ELEMENTS_RO(red_list
, node
, red
)) {
1809 bgp_redistribute_resend(bgp
, afi
, i
,
1816 /* Unset redistribute vrf bitmap during triggers like
1817 restart networking or delete VRFs */
1818 void bgp_unset_redist_vrf_bitmaps(struct bgp
*bgp
, vrf_id_t old_vrf_id
)
1823 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++)
1824 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
1825 if (vrf_bitmap_check(zclient
->redist
[afi
][i
],
1827 vrf_bitmap_unset(zclient
->redist
[afi
][i
],
1832 void bgp_zclient_reset(void)
1834 zclient_reset(zclient
);
1837 /* Register this instance with Zebra. Invoked upon connect (for
1838 * default instance) and when other VRFs are learnt (or created and
1841 void bgp_zebra_instance_register(struct bgp
*bgp
)
1843 /* Don't try to register if we're not connected to Zebra */
1844 if (!zclient
|| zclient
->sock
< 0)
1847 if (BGP_DEBUG(zebra
, ZEBRA
))
1848 zlog_debug("Registering VRF %u", bgp
->vrf_id
);
1850 /* Register for router-id, interfaces, redistributed routes. */
1851 zclient_send_reg_requests(zclient
, bgp
->vrf_id
);
1853 /* For EVPN instance, register to learn about VNIs, if appropriate. */
1854 if (bgp
->advertise_all_vni
)
1855 bgp_zebra_advertise_all_vni(bgp
, 1);
1857 bgp_nht_register_nexthops(bgp
);
1860 /* Deregister this instance with Zebra. Invoked upon the instance
1861 * being deleted (default or VRF) and it is already registered.
1863 void bgp_zebra_instance_deregister(struct bgp
*bgp
)
1865 /* Don't try to deregister if we're not connected to Zebra */
1866 if (zclient
->sock
< 0)
1869 if (BGP_DEBUG(zebra
, ZEBRA
))
1870 zlog_debug("Deregistering VRF %u", bgp
->vrf_id
);
1872 /* For EVPN instance, unregister learning about VNIs, if appropriate. */
1873 if (bgp
->advertise_all_vni
)
1874 bgp_zebra_advertise_all_vni(bgp
, 0);
1876 /* Deregister for router-id, interfaces, redistributed routes. */
1877 zclient_send_dereg_requests(zclient
, bgp
->vrf_id
);
1880 void bgp_zebra_initiate_radv(struct bgp
*bgp
, struct peer
*peer
)
1882 int ra_interval
= BGP_UNNUM_DEFAULT_RA_INTERVAL
;
1884 /* Don't try to initiate if we're not connected to Zebra */
1885 if (zclient
->sock
< 0)
1888 if (BGP_DEBUG(zebra
, ZEBRA
))
1889 zlog_debug("%u: Initiating RA for peer %s", bgp
->vrf_id
,
1892 zclient_send_interface_radv_req(zclient
, bgp
->vrf_id
, peer
->ifp
, 1,
1896 void bgp_zebra_terminate_radv(struct bgp
*bgp
, struct peer
*peer
)
1898 /* Don't try to terminate if we're not connected to Zebra */
1899 if (zclient
->sock
< 0)
1902 if (BGP_DEBUG(zebra
, ZEBRA
))
1903 zlog_debug("%u: Terminating RA for peer %s", bgp
->vrf_id
,
1906 zclient_send_interface_radv_req(zclient
, bgp
->vrf_id
, peer
->ifp
, 0, 0);
1909 int bgp_zebra_advertise_subnet(struct bgp
*bgp
, int advertise
, vni_t vni
)
1911 struct stream
*s
= NULL
;
1914 if (!zclient
|| zclient
->sock
< 0)
1917 /* Don't try to register if Zebra doesn't know of this instance. */
1918 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
)) {
1919 if (BGP_DEBUG(zebra
, ZEBRA
))
1920 zlog_debug("%s: No zebra instance to talk to, cannot advertise subnet",
1921 __PRETTY_FUNCTION__
);
1928 zclient_create_header(s
, ZEBRA_ADVERTISE_SUBNET
, bgp
->vrf_id
);
1929 stream_putc(s
, advertise
);
1930 stream_put3(s
, vni
);
1931 stream_putw_at(s
, 0, stream_get_endp(s
));
1933 return zclient_send_message(zclient
);
1936 int bgp_zebra_advertise_svi_macip(struct bgp
*bgp
, int advertise
, vni_t vni
)
1938 struct stream
*s
= NULL
;
1941 if (!zclient
|| zclient
->sock
< 0)
1944 /* Don't try to register if Zebra doesn't know of this instance. */
1945 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
))
1951 zclient_create_header(s
, ZEBRA_ADVERTISE_SVI_MACIP
, bgp
->vrf_id
);
1952 stream_putc(s
, advertise
);
1953 stream_putl(s
, vni
);
1954 stream_putw_at(s
, 0, stream_get_endp(s
));
1956 return zclient_send_message(zclient
);
1959 int bgp_zebra_advertise_gw_macip(struct bgp
*bgp
, int advertise
, vni_t vni
)
1961 struct stream
*s
= NULL
;
1964 if (!zclient
|| zclient
->sock
< 0)
1967 /* Don't try to register if Zebra doesn't know of this instance. */
1968 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
)) {
1969 if (BGP_DEBUG(zebra
, ZEBRA
))
1970 zlog_debug("%s: No zebra instance to talk to, not installing gw_macip",
1971 __PRETTY_FUNCTION__
);
1978 zclient_create_header(s
, ZEBRA_ADVERTISE_DEFAULT_GW
, bgp
->vrf_id
);
1979 stream_putc(s
, advertise
);
1980 stream_putl(s
, vni
);
1981 stream_putw_at(s
, 0, stream_get_endp(s
));
1983 return zclient_send_message(zclient
);
1986 int bgp_zebra_vxlan_flood_control(struct bgp
*bgp
,
1987 enum vxlan_flood_control flood_ctrl
)
1992 if (!zclient
|| zclient
->sock
< 0)
1995 /* Don't try to register if Zebra doesn't know of this instance. */
1996 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
)) {
1997 if (BGP_DEBUG(zebra
, ZEBRA
))
1998 zlog_debug("%s: No zebra instance to talk to, not installing all vni",
1999 __PRETTY_FUNCTION__
);
2006 zclient_create_header(s
, ZEBRA_VXLAN_FLOOD_CONTROL
, bgp
->vrf_id
);
2007 stream_putc(s
, flood_ctrl
);
2008 stream_putw_at(s
, 0, stream_get_endp(s
));
2010 return zclient_send_message(zclient
);
2013 int bgp_zebra_advertise_all_vni(struct bgp
*bgp
, int advertise
)
2018 if (!zclient
|| zclient
->sock
< 0)
2021 /* Don't try to register if Zebra doesn't know of this instance. */
2022 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
))
2028 zclient_create_header(s
, ZEBRA_ADVERTISE_ALL_VNI
, bgp
->vrf_id
);
2029 stream_putc(s
, advertise
);
2030 /* Also inform current BUM handling setting. This is really
2031 * relevant only when 'advertise' is set.
2033 stream_putc(s
, bgp
->vxlan_flood_ctrl
);
2034 stream_putw_at(s
, 0, stream_get_endp(s
));
2036 return zclient_send_message(zclient
);
2039 int bgp_zebra_dup_addr_detection(struct bgp
*bgp
)
2044 if (!zclient
|| zclient
->sock
< 0)
2047 /* Don't try to register if Zebra doesn't know of this instance. */
2048 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
))
2051 if (BGP_DEBUG(zebra
, ZEBRA
))
2052 zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u",
2053 bgp
->evpn_info
->dup_addr_detect
?
2054 "enable" : "disable",
2055 bgp
->evpn_info
->dad_max_moves
,
2056 bgp
->evpn_info
->dad_time
,
2057 bgp
->evpn_info
->dad_freeze
?
2058 "enable" : "disable",
2059 bgp
->evpn_info
->dad_freeze_time
);
2063 zclient_create_header(s
, ZEBRA_DUPLICATE_ADDR_DETECTION
,
2065 stream_putl(s
, bgp
->evpn_info
->dup_addr_detect
);
2066 stream_putl(s
, bgp
->evpn_info
->dad_time
);
2067 stream_putl(s
, bgp
->evpn_info
->dad_max_moves
);
2068 stream_putl(s
, bgp
->evpn_info
->dad_freeze
);
2069 stream_putl(s
, bgp
->evpn_info
->dad_freeze_time
);
2070 stream_putw_at(s
, 0, stream_get_endp(s
));
2072 return zclient_send_message(zclient
);
2075 static int rule_notify_owner(ZAPI_CALLBACK_ARGS
)
2077 uint32_t seqno
, priority
, unique
;
2078 enum zapi_rule_notify_owner note
;
2079 struct bgp_pbr_action
*bgp_pbra
;
2080 struct bgp_pbr_rule
*bgp_pbr
= NULL
;
2083 if (!zapi_rule_notify_decode(zclient
->ibuf
, &seqno
, &priority
, &unique
,
2087 bgp_pbra
= bgp_pbr_action_rule_lookup(vrf_id
, unique
);
2089 /* look in bgp pbr rule */
2090 bgp_pbr
= bgp_pbr_rule_lookup(vrf_id
, unique
);
2091 if (!bgp_pbr
&& note
!= ZAPI_RULE_REMOVED
) {
2092 if (BGP_DEBUG(zebra
, ZEBRA
))
2093 zlog_debug("%s: Fail to look BGP rule (%u)",
2094 __PRETTY_FUNCTION__
, unique
);
2100 case ZAPI_RULE_FAIL_INSTALL
:
2101 if (BGP_DEBUG(zebra
, ZEBRA
))
2102 zlog_debug("%s: Received RULE_FAIL_INSTALL",
2103 __PRETTY_FUNCTION__
);
2105 bgp_pbra
->installed
= false;
2106 bgp_pbra
->install_in_progress
= false;
2108 bgp_pbr
->installed
= false;
2109 bgp_pbr
->install_in_progress
= false;
2112 case ZAPI_RULE_INSTALLED
:
2114 bgp_pbra
->installed
= true;
2115 bgp_pbra
->install_in_progress
= false;
2117 struct bgp_path_info
*path
;
2118 struct bgp_path_info_extra
*extra
;
2120 bgp_pbr
->installed
= true;
2121 bgp_pbr
->install_in_progress
= false;
2122 bgp_pbr
->action
->refcnt
++;
2123 /* link bgp_info to bgp_pbr */
2124 path
= (struct bgp_path_info
*)bgp_pbr
->path
;
2125 extra
= bgp_path_info_extra_get(path
);
2126 listnode_add_force(&extra
->bgp_fs_iprule
,
2129 if (BGP_DEBUG(zebra
, ZEBRA
))
2130 zlog_debug("%s: Received RULE_INSTALLED",
2131 __PRETTY_FUNCTION__
);
2133 case ZAPI_RULE_FAIL_REMOVE
:
2134 case ZAPI_RULE_REMOVED
:
2135 if (BGP_DEBUG(zebra
, ZEBRA
))
2136 zlog_debug("%s: Received RULE REMOVED",
2137 __PRETTY_FUNCTION__
);
2144 static int ipset_notify_owner(ZAPI_CALLBACK_ARGS
)
2147 enum zapi_ipset_notify_owner note
;
2148 struct bgp_pbr_match
*bgp_pbim
;
2150 if (!zapi_ipset_notify_decode(zclient
->ibuf
,
2155 bgp_pbim
= bgp_pbr_match_ipset_lookup(vrf_id
, unique
);
2157 if (BGP_DEBUG(zebra
, ZEBRA
))
2158 zlog_debug("%s: Fail to look BGP match ( %u, ID %u)",
2159 __PRETTY_FUNCTION__
, note
, unique
);
2164 case ZAPI_IPSET_FAIL_INSTALL
:
2165 if (BGP_DEBUG(zebra
, ZEBRA
))
2166 zlog_debug("%s: Received IPSET_FAIL_INSTALL",
2167 __PRETTY_FUNCTION__
);
2168 bgp_pbim
->installed
= false;
2169 bgp_pbim
->install_in_progress
= false;
2171 case ZAPI_IPSET_INSTALLED
:
2172 bgp_pbim
->installed
= true;
2173 bgp_pbim
->install_in_progress
= false;
2174 if (BGP_DEBUG(zebra
, ZEBRA
))
2175 zlog_debug("%s: Received IPSET_INSTALLED",
2176 __PRETTY_FUNCTION__
);
2178 case ZAPI_IPSET_FAIL_REMOVE
:
2179 case ZAPI_IPSET_REMOVED
:
2180 if (BGP_DEBUG(zebra
, ZEBRA
))
2181 zlog_debug("%s: Received IPSET REMOVED",
2182 __PRETTY_FUNCTION__
);
2189 static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS
)
2192 char ipset_name
[ZEBRA_IPSET_NAME_SIZE
];
2193 enum zapi_ipset_entry_notify_owner note
;
2194 struct bgp_pbr_match_entry
*bgp_pbime
;
2196 if (!zapi_ipset_entry_notify_decode(
2202 bgp_pbime
= bgp_pbr_match_ipset_entry_lookup(vrf_id
,
2206 if (BGP_DEBUG(zebra
, ZEBRA
))
2207 zlog_debug("%s: Fail to look BGP match entry (%u, ID %u)",
2208 __PRETTY_FUNCTION__
, note
, unique
);
2213 case ZAPI_IPSET_ENTRY_FAIL_INSTALL
:
2214 if (BGP_DEBUG(zebra
, ZEBRA
))
2215 zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL",
2216 __PRETTY_FUNCTION__
);
2217 bgp_pbime
->installed
= false;
2218 bgp_pbime
->install_in_progress
= false;
2220 case ZAPI_IPSET_ENTRY_INSTALLED
:
2222 struct bgp_path_info
*path
;
2223 struct bgp_path_info_extra
*extra
;
2225 bgp_pbime
->installed
= true;
2226 bgp_pbime
->install_in_progress
= false;
2227 if (BGP_DEBUG(zebra
, ZEBRA
))
2228 zlog_debug("%s: Received IPSET_ENTRY_INSTALLED",
2229 __PRETTY_FUNCTION__
);
2230 /* link bgp_path_info to bpme */
2231 path
= (struct bgp_path_info
*)bgp_pbime
->path
;
2232 extra
= bgp_path_info_extra_get(path
);
2233 listnode_add_force(&extra
->bgp_fs_pbr
, bgp_pbime
);
2236 case ZAPI_IPSET_ENTRY_FAIL_REMOVE
:
2237 case ZAPI_IPSET_ENTRY_REMOVED
:
2238 if (BGP_DEBUG(zebra
, ZEBRA
))
2239 zlog_debug("%s: Received IPSET_ENTRY_REMOVED",
2240 __PRETTY_FUNCTION__
);
2246 static int iptable_notify_owner(ZAPI_CALLBACK_ARGS
)
2249 enum zapi_iptable_notify_owner note
;
2250 struct bgp_pbr_match
*bgpm
;
2252 if (!zapi_iptable_notify_decode(
2257 bgpm
= bgp_pbr_match_iptable_lookup(vrf_id
, unique
);
2259 if (BGP_DEBUG(zebra
, ZEBRA
))
2260 zlog_debug("%s: Fail to look BGP iptable (%u %u)",
2261 __PRETTY_FUNCTION__
, note
, unique
);
2265 case ZAPI_IPTABLE_FAIL_INSTALL
:
2266 if (BGP_DEBUG(zebra
, ZEBRA
))
2267 zlog_debug("%s: Received IPTABLE_FAIL_INSTALL",
2268 __PRETTY_FUNCTION__
);
2269 bgpm
->installed_in_iptable
= false;
2270 bgpm
->install_iptable_in_progress
= false;
2272 case ZAPI_IPTABLE_INSTALLED
:
2273 bgpm
->installed_in_iptable
= true;
2274 bgpm
->install_iptable_in_progress
= false;
2275 if (BGP_DEBUG(zebra
, ZEBRA
))
2276 zlog_debug("%s: Received IPTABLE_INSTALLED",
2277 __PRETTY_FUNCTION__
);
2278 bgpm
->action
->refcnt
++;
2280 case ZAPI_IPTABLE_FAIL_REMOVE
:
2281 case ZAPI_IPTABLE_REMOVED
:
2282 if (BGP_DEBUG(zebra
, ZEBRA
))
2283 zlog_debug("%s: Received IPTABLE REMOVED",
2284 __PRETTY_FUNCTION__
);
2290 /* this function is used to forge ip rule,
2291 * - either for iptable/ipset using fwmark id
2292 * - or for sample ip rule cmd
2294 static void bgp_encode_pbr_rule_action(struct stream
*s
,
2295 struct bgp_pbr_action
*pbra
,
2296 struct bgp_pbr_rule
*pbr
)
2300 stream_putl(s
, 0); /* seqno unused */
2302 stream_putl(s
, pbr
->priority
);
2305 /* ruleno unused - priority change
2306 * ruleno permits distinguishing various FS PBR entries
2307 * - FS PBR entries based on ipset/iptables
2308 * - FS PBR entries based on iprule
2309 * the latter may contain default routing information injected by FS
2312 stream_putl(s
, pbr
->unique
);
2314 stream_putl(s
, pbra
->unique
);
2315 if (pbr
&& pbr
->flags
& MATCH_IP_SRC_SET
)
2316 memcpy(&pfx
, &(pbr
->src
), sizeof(struct prefix
));
2318 memset(&pfx
, 0, sizeof(pfx
));
2319 pfx
.family
= AF_INET
;
2321 stream_putc(s
, pfx
.family
);
2322 stream_putc(s
, pfx
.prefixlen
);
2323 stream_put(s
, &pfx
.u
.prefix
, prefix_blen(&pfx
));
2325 stream_putw(s
, 0); /* src port */
2327 if (pbr
&& pbr
->flags
& MATCH_IP_DST_SET
)
2328 memcpy(&pfx
, &(pbr
->dst
), sizeof(struct prefix
));
2330 memset(&pfx
, 0, sizeof(pfx
));
2331 pfx
.family
= AF_INET
;
2333 stream_putc(s
, pfx
.family
);
2334 stream_putc(s
, pfx
.prefixlen
);
2335 stream_put(s
, &pfx
.u
.prefix
, prefix_blen(&pfx
));
2337 stream_putw(s
, 0); /* dst port */
2339 /* if pbr present, fwmark is not used */
2343 stream_putl(s
, pbra
->fwmark
); /* fwmark */
2345 stream_putl(s
, pbra
->table_id
);
2347 stream_putl(s
, 0); /* ifindex unused */
2350 static void bgp_encode_pbr_ipset_match(struct stream
*s
,
2351 struct bgp_pbr_match
*pbim
)
2353 stream_putl(s
, pbim
->unique
);
2354 stream_putl(s
, pbim
->type
);
2356 stream_put(s
, pbim
->ipset_name
,
2357 ZEBRA_IPSET_NAME_SIZE
);
2360 static void bgp_encode_pbr_ipset_entry_match(struct stream
*s
,
2361 struct bgp_pbr_match_entry
*pbime
)
2363 stream_putl(s
, pbime
->unique
);
2364 /* check that back pointer is not null */
2365 stream_put(s
, pbime
->backpointer
->ipset_name
,
2366 ZEBRA_IPSET_NAME_SIZE
);
2368 stream_putc(s
, pbime
->src
.family
);
2369 stream_putc(s
, pbime
->src
.prefixlen
);
2370 stream_put(s
, &pbime
->src
.u
.prefix
, prefix_blen(&pbime
->src
));
2372 stream_putc(s
, pbime
->dst
.family
);
2373 stream_putc(s
, pbime
->dst
.prefixlen
);
2374 stream_put(s
, &pbime
->dst
.u
.prefix
, prefix_blen(&pbime
->dst
));
2376 stream_putw(s
, pbime
->src_port_min
);
2377 stream_putw(s
, pbime
->src_port_max
);
2378 stream_putw(s
, pbime
->dst_port_min
);
2379 stream_putw(s
, pbime
->dst_port_max
);
2380 stream_putc(s
, pbime
->proto
);
2383 static void bgp_encode_pbr_iptable_match(struct stream
*s
,
2384 struct bgp_pbr_action
*bpa
,
2385 struct bgp_pbr_match
*pbm
)
2387 stream_putl(s
, pbm
->unique2
);
2389 stream_putl(s
, pbm
->type
);
2391 stream_putl(s
, pbm
->flags
);
2393 /* TODO: correlate with what is contained
2394 * into bgp_pbr_action.
2395 * currently only forward supported
2397 if (bpa
->nh
.type
== NEXTHOP_TYPE_BLACKHOLE
)
2398 stream_putl(s
, ZEBRA_IPTABLES_DROP
);
2400 stream_putl(s
, ZEBRA_IPTABLES_FORWARD
);
2401 stream_putl(s
, bpa
->fwmark
);
2402 stream_put(s
, pbm
->ipset_name
,
2403 ZEBRA_IPSET_NAME_SIZE
);
2404 stream_putw(s
, pbm
->pkt_len_min
);
2405 stream_putw(s
, pbm
->pkt_len_max
);
2406 stream_putw(s
, pbm
->tcp_flags
);
2407 stream_putw(s
, pbm
->tcp_mask_flags
);
2408 stream_putc(s
, pbm
->dscp_value
);
2409 stream_putc(s
, pbm
->fragment
);
2410 stream_putc(s
, pbm
->protocol
);
2413 /* BGP has established connection with Zebra. */
2414 static void bgp_zebra_connected(struct zclient
*zclient
)
2418 zclient_num_connects
++; /* increment even if not responding */
2420 /* At this point, we may or may not have BGP instances configured, but
2421 * we're only interested in the default VRF (others wouldn't have learnt
2422 * the VRF from Zebra yet.)
2424 bgp
= bgp_get_default();
2428 bgp_zebra_instance_register(bgp
);
2430 /* Send the client registration */
2431 bfd_client_sendmsg(zclient
, ZEBRA_BFD_CLIENT_REGISTER
, bgp
->vrf_id
);
2433 /* tell label pool that zebra is connected */
2434 bgp_lp_event_zebra_up();
2436 /* TODO - What if we have peers and networks configured, do we have to
2439 BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp
, bgp
->peer
);
2442 static int bgp_zebra_process_local_es(ZAPI_CALLBACK_ARGS
)
2445 struct bgp
*bgp
= NULL
;
2446 struct stream
*s
= NULL
;
2447 char buf
[ESI_STR_LEN
];
2448 char buf1
[INET6_ADDRSTRLEN
];
2449 struct ipaddr originator_ip
;
2451 memset(&esi
, 0, sizeof(esi_t
));
2452 memset(&originator_ip
, 0, sizeof(struct ipaddr
));
2454 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
2459 stream_get(&esi
, s
, sizeof(esi_t
));
2460 stream_get(&originator_ip
, s
, sizeof(struct ipaddr
));
2462 if (BGP_DEBUG(zebra
, ZEBRA
))
2463 zlog_debug("Rx %s ESI %s originator-ip %s",
2464 (cmd
== ZEBRA_LOCAL_ES_ADD
) ? "add" : "del",
2465 esi_to_str(&esi
, buf
, sizeof(buf
)),
2466 ipaddr2str(&originator_ip
, buf1
, sizeof(buf1
)));
2468 if (cmd
== ZEBRA_LOCAL_ES_ADD
)
2469 bgp_evpn_local_es_add(bgp
, &esi
, &originator_ip
);
2471 bgp_evpn_local_es_del(bgp
, &esi
, &originator_ip
);
2475 static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS
)
2478 char buf
[ETHER_ADDR_STRLEN
];
2480 struct ethaddr svi_rmac
, vrr_rmac
= {.octet
= {0} };
2481 struct in_addr originator_ip
;
2483 ifindex_t svi_ifindex
;
2484 bool is_anycast_mac
= false;
2485 char buf1
[ETHER_ADDR_STRLEN
];
2487 memset(&svi_rmac
, 0, sizeof(struct ethaddr
));
2488 memset(&originator_ip
, 0, sizeof(struct in_addr
));
2490 l3vni
= stream_getl(s
);
2491 if (cmd
== ZEBRA_L3VNI_ADD
) {
2492 stream_get(&svi_rmac
, s
, sizeof(struct ethaddr
));
2493 originator_ip
.s_addr
= stream_get_ipv4(s
);
2494 stream_get(&filter
, s
, sizeof(int));
2495 svi_ifindex
= stream_getl(s
);
2496 stream_get(&vrr_rmac
, s
, sizeof(struct ethaddr
));
2497 is_anycast_mac
= stream_getl(s
);
2499 if (BGP_DEBUG(zebra
, ZEBRA
))
2500 zlog_debug("Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %s vrr-mac %s filter %s svi-if %u",
2501 vrf_id_to_name(vrf_id
), l3vni
,
2502 prefix_mac2str(&svi_rmac
, buf
, sizeof(buf
)),
2503 prefix_mac2str(&vrr_rmac
, buf1
,
2505 filter
? "prefix-routes-only" : "none",
2508 bgp_evpn_local_l3vni_add(l3vni
, vrf_id
, &svi_rmac
, &vrr_rmac
,
2509 originator_ip
, filter
, svi_ifindex
,
2512 if (BGP_DEBUG(zebra
, ZEBRA
))
2513 zlog_debug("Rx L3-VNI DEL VRF %s VNI %u",
2514 vrf_id_to_name(vrf_id
), l3vni
);
2516 bgp_evpn_local_l3vni_del(l3vni
, vrf_id
);
2522 static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS
)
2527 struct in_addr vtep_ip
= {INADDR_ANY
};
2528 vrf_id_t tenant_vrf_id
= VRF_DEFAULT
;
2529 struct in_addr mcast_grp
= {INADDR_ANY
};
2532 vni
= stream_getl(s
);
2533 if (cmd
== ZEBRA_VNI_ADD
) {
2534 vtep_ip
.s_addr
= stream_get_ipv4(s
);
2535 stream_get(&tenant_vrf_id
, s
, sizeof(vrf_id_t
));
2536 mcast_grp
.s_addr
= stream_get_ipv4(s
);
2539 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
2543 if (BGP_DEBUG(zebra
, ZEBRA
))
2544 zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s",
2545 (cmd
== ZEBRA_VNI_ADD
) ? "add" : "del",
2546 vrf_id_to_name(vrf_id
), vni
,
2547 vrf_id_to_name(tenant_vrf_id
));
2549 if (cmd
== ZEBRA_VNI_ADD
)
2550 return bgp_evpn_local_vni_add(
2551 bgp
, vni
, vtep_ip
.s_addr
? vtep_ip
: bgp
->router_id
,
2552 tenant_vrf_id
, mcast_grp
);
2554 return bgp_evpn_local_vni_del(bgp
, vni
);
2557 static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS
)
2565 char buf
[ETHER_ADDR_STRLEN
];
2566 char buf1
[INET6_ADDRSTRLEN
];
2568 uint32_t seqnum
= 0;
2571 memset(&ip
, 0, sizeof(ip
));
2573 vni
= stream_getl(s
);
2574 stream_get(&mac
.octet
, s
, ETH_ALEN
);
2575 ipa_len
= stream_getl(s
);
2576 if (ipa_len
!= 0 && ipa_len
!= IPV4_MAX_BYTELEN
2577 && ipa_len
!= IPV6_MAX_BYTELEN
) {
2578 flog_err(EC_BGP_MACIP_LEN
,
2579 "%u:Recv MACIP %s with invalid IP addr length %d",
2580 vrf_id
, (cmd
== ZEBRA_MACIP_ADD
) ? "Add" : "Del",
2587 (ipa_len
== IPV4_MAX_BYTELEN
) ? IPADDR_V4
: IPADDR_V6
;
2588 stream_get(&ip
.ip
.addr
, s
, ipa_len
);
2590 if (cmd
== ZEBRA_MACIP_ADD
) {
2591 flags
= stream_getc(s
);
2592 seqnum
= stream_getl(s
);
2594 state
= stream_getl(s
);
2597 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
2601 if (BGP_DEBUG(zebra
, ZEBRA
))
2602 zlog_debug("%u:Recv MACIP %s flags 0x%x MAC %s IP %s VNI %u seq %u state %d",
2603 vrf_id
, (cmd
== ZEBRA_MACIP_ADD
) ? "Add" : "Del",
2604 flags
, prefix_mac2str(&mac
, buf
, sizeof(buf
)),
2605 ipaddr2str(&ip
, buf1
, sizeof(buf1
)), vni
, seqnum
,
2608 if (cmd
== ZEBRA_MACIP_ADD
)
2609 return bgp_evpn_local_macip_add(bgp
, vni
, &mac
, &ip
,
2612 return bgp_evpn_local_macip_del(bgp
, vni
, &mac
, &ip
, state
);
2615 static void bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS
)
2617 struct stream
*s
= NULL
;
2618 struct bgp
*bgp_vrf
= NULL
;
2620 char buf
[PREFIX_STRLEN
];
2622 memset(&p
, 0, sizeof(struct prefix
));
2624 stream_get(&p
, s
, sizeof(struct prefix
));
2626 bgp_vrf
= bgp_lookup_by_vrf_id(vrf_id
);
2630 if (BGP_DEBUG(zebra
, ZEBRA
))
2631 zlog_debug("Recv prefix %s %s on vrf %s",
2632 prefix2str(&p
, buf
, sizeof(buf
)),
2633 (cmd
== ZEBRA_IP_PREFIX_ROUTE_ADD
) ? "ADD" : "DEL",
2634 vrf_id_to_name(vrf_id
));
2636 if (cmd
== ZEBRA_IP_PREFIX_ROUTE_ADD
) {
2638 if (p
.family
== AF_INET
)
2639 bgp_evpn_advertise_type5_route(bgp_vrf
, &p
, NULL
,
2640 AFI_IP
, SAFI_UNICAST
);
2642 bgp_evpn_advertise_type5_route(bgp_vrf
, &p
, NULL
,
2643 AFI_IP6
, SAFI_UNICAST
);
2646 if (p
.family
== AF_INET
)
2647 bgp_evpn_withdraw_type5_route(bgp_vrf
, &p
, AFI_IP
,
2650 bgp_evpn_withdraw_type5_route(bgp_vrf
, &p
, AFI_IP6
,
2655 static void bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS
)
2657 struct stream
*s
= NULL
;
2658 uint8_t response_keep
;
2662 unsigned short instance
;
2665 STREAM_GETC(s
, proto
);
2666 STREAM_GETW(s
, instance
);
2667 STREAM_GETC(s
, response_keep
);
2668 STREAM_GETL(s
, first
);
2669 STREAM_GETL(s
, last
);
2671 if (zclient
->redist_default
!= proto
) {
2672 flog_err(EC_BGP_LM_ERROR
, "Got LM msg with wrong proto %u",
2676 if (zclient
->instance
!= instance
) {
2677 flog_err(EC_BGP_LM_ERROR
, "Got LM msg with wrong instance %u",
2683 first
< MPLS_LABEL_UNRESERVED_MIN
||
2684 last
> MPLS_LABEL_UNRESERVED_MAX
) {
2686 flog_err(EC_BGP_LM_ERROR
, "%s: Invalid Label chunk: %u - %u",
2687 __func__
, first
, last
);
2690 if (BGP_DEBUG(zebra
, ZEBRA
)) {
2691 zlog_debug("Label Chunk assign: %u - %u (%u) ",
2692 first
, last
, response_keep
);
2695 bgp_lp_event_chunk(response_keep
, first
, last
);
2697 stream_failure
: /* for STREAM_GETX */
2701 extern struct zebra_privs_t bgpd_privs
;
2703 static int bgp_ifp_create(struct interface
*ifp
)
2707 if (BGP_DEBUG(zebra
, ZEBRA
))
2708 zlog_debug("Rx Intf add VRF %u IF %s", ifp
->vrf_id
, ifp
->name
);
2710 bgp
= bgp_lookup_by_vrf_id(ifp
->vrf_id
);
2714 bgp_mac_add_mac_entry(ifp
);
2716 bgp_update_interface_nbrs(bgp
, ifp
, ifp
);
2720 void bgp_zebra_init(struct thread_master
*master
, unsigned short instance
)
2722 zclient_num_connects
= 0;
2724 if_zapi_callbacks(bgp_ifp_create
, bgp_ifp_up
,
2725 bgp_ifp_down
, bgp_ifp_destroy
);
2727 /* Set default values. */
2728 zclient
= zclient_new(master
, &zclient_options_default
);
2729 zclient_init(zclient
, ZEBRA_ROUTE_BGP
, 0, &bgpd_privs
);
2730 zclient
->zebra_connected
= bgp_zebra_connected
;
2731 zclient
->router_id_update
= bgp_router_id_update
;
2732 zclient
->interface_address_add
= bgp_interface_address_add
;
2733 zclient
->interface_address_delete
= bgp_interface_address_delete
;
2734 zclient
->interface_nbr_address_add
= bgp_interface_nbr_address_add
;
2735 zclient
->interface_nbr_address_delete
=
2736 bgp_interface_nbr_address_delete
;
2737 zclient
->interface_vrf_update
= bgp_interface_vrf_update
;
2738 zclient
->redistribute_route_add
= zebra_read_route
;
2739 zclient
->redistribute_route_del
= zebra_read_route
;
2740 zclient
->nexthop_update
= bgp_read_nexthop_update
;
2741 zclient
->import_check_update
= bgp_read_import_check_update
;
2742 zclient
->fec_update
= bgp_read_fec_update
;
2743 zclient
->local_es_add
= bgp_zebra_process_local_es
;
2744 zclient
->local_es_del
= bgp_zebra_process_local_es
;
2745 zclient
->local_vni_add
= bgp_zebra_process_local_vni
;
2746 zclient
->local_vni_del
= bgp_zebra_process_local_vni
;
2747 zclient
->local_macip_add
= bgp_zebra_process_local_macip
;
2748 zclient
->local_macip_del
= bgp_zebra_process_local_macip
;
2749 zclient
->local_l3vni_add
= bgp_zebra_process_local_l3vni
;
2750 zclient
->local_l3vni_del
= bgp_zebra_process_local_l3vni
;
2751 zclient
->local_ip_prefix_add
= bgp_zebra_process_local_ip_prefix
;
2752 zclient
->local_ip_prefix_del
= bgp_zebra_process_local_ip_prefix
;
2753 zclient
->label_chunk
= bgp_zebra_process_label_chunk
;
2754 zclient
->rule_notify_owner
= rule_notify_owner
;
2755 zclient
->ipset_notify_owner
= ipset_notify_owner
;
2756 zclient
->ipset_entry_notify_owner
= ipset_entry_notify_owner
;
2757 zclient
->iptable_notify_owner
= iptable_notify_owner
;
2758 zclient
->instance
= instance
;
2761 void bgp_zebra_destroy(void)
2763 if (zclient
== NULL
)
2765 zclient_stop(zclient
);
2766 zclient_free(zclient
);
2770 int bgp_zebra_num_connects(void)
2772 return zclient_num_connects
;
2775 void bgp_send_pbr_rule_action(struct bgp_pbr_action
*pbra
,
2776 struct bgp_pbr_rule
*pbr
,
2781 if (pbra
->install_in_progress
&& !pbr
)
2783 if (pbr
&& pbr
->install_in_progress
)
2785 if (BGP_DEBUG(zebra
, ZEBRA
)) {
2787 zlog_debug("%s: table %d (ip rule) %d",
2788 __PRETTY_FUNCTION__
,
2789 pbra
->table_id
, install
);
2791 zlog_debug("%s: table %d fwmark %d %d",
2792 __PRETTY_FUNCTION__
,
2793 pbra
->table_id
, pbra
->fwmark
, install
);
2798 zclient_create_header(s
,
2799 install
? ZEBRA_RULE_ADD
: ZEBRA_RULE_DELETE
,
2801 stream_putl(s
, 1); /* send one pbr action */
2803 bgp_encode_pbr_rule_action(s
, pbra
, pbr
);
2805 stream_putw_at(s
, 0, stream_get_endp(s
));
2806 if (!zclient_send_message(zclient
) && install
) {
2808 pbra
->install_in_progress
= true;
2810 pbr
->install_in_progress
= true;
2814 void bgp_send_pbr_ipset_match(struct bgp_pbr_match
*pbrim
, bool install
)
2818 if (pbrim
->install_in_progress
)
2820 if (BGP_DEBUG(zebra
, ZEBRA
))
2821 zlog_debug("%s: name %s type %d %d, ID %u",
2822 __PRETTY_FUNCTION__
,
2823 pbrim
->ipset_name
, pbrim
->type
,
2824 install
, pbrim
->unique
);
2828 zclient_create_header(s
,
2829 install
? ZEBRA_IPSET_CREATE
:
2830 ZEBRA_IPSET_DESTROY
,
2833 stream_putl(s
, 1); /* send one pbr action */
2835 bgp_encode_pbr_ipset_match(s
, pbrim
);
2837 stream_putw_at(s
, 0, stream_get_endp(s
));
2838 if (!zclient_send_message(zclient
) && install
)
2839 pbrim
->install_in_progress
= true;
2842 void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry
*pbrime
,
2847 if (pbrime
->install_in_progress
)
2849 if (BGP_DEBUG(zebra
, ZEBRA
))
2850 zlog_debug("%s: name %s %d %d, ID %u", __PRETTY_FUNCTION__
,
2851 pbrime
->backpointer
->ipset_name
,
2852 pbrime
->unique
, install
, pbrime
->unique
);
2856 zclient_create_header(s
,
2857 install
? ZEBRA_IPSET_ENTRY_ADD
:
2858 ZEBRA_IPSET_ENTRY_DELETE
,
2861 stream_putl(s
, 1); /* send one pbr action */
2863 bgp_encode_pbr_ipset_entry_match(s
, pbrime
);
2865 stream_putw_at(s
, 0, stream_get_endp(s
));
2866 if (!zclient_send_message(zclient
) && install
)
2867 pbrime
->install_in_progress
= true;
2870 static void bgp_encode_pbr_interface_list(struct bgp
*bgp
, struct stream
*s
)
2872 struct bgp_pbr_config
*bgp_pbr_cfg
= bgp
->bgp_pbr_cfg
;
2873 struct bgp_pbr_interface_head
*head
;
2874 struct bgp_pbr_interface
*pbr_if
;
2875 struct interface
*ifp
;
2879 head
= &(bgp_pbr_cfg
->ifaces_by_name_ipv4
);
2881 RB_FOREACH (pbr_if
, bgp_pbr_interface_head
, head
) {
2882 ifp
= if_lookup_by_name(pbr_if
->name
, bgp
->vrf_id
);
2884 stream_putl(s
, ifp
->ifindex
);
2888 static int bgp_pbr_get_ifnumber(struct bgp
*bgp
)
2890 struct bgp_pbr_config
*bgp_pbr_cfg
= bgp
->bgp_pbr_cfg
;
2891 struct bgp_pbr_interface_head
*head
;
2892 struct bgp_pbr_interface
*pbr_if
;
2897 head
= &(bgp_pbr_cfg
->ifaces_by_name_ipv4
);
2899 RB_FOREACH (pbr_if
, bgp_pbr_interface_head
, head
) {
2900 if (if_lookup_by_name(pbr_if
->name
, bgp
->vrf_id
))
2906 void bgp_send_pbr_iptable(struct bgp_pbr_action
*pba
,
2907 struct bgp_pbr_match
*pbm
,
2914 if (pbm
->install_iptable_in_progress
)
2916 if (BGP_DEBUG(zebra
, ZEBRA
))
2917 zlog_debug("%s: name %s type %d mark %d %d, ID %u",
2918 __PRETTY_FUNCTION__
, pbm
->ipset_name
,
2919 pbm
->type
, pba
->fwmark
, install
,
2924 zclient_create_header(s
,
2925 install
? ZEBRA_IPTABLE_ADD
:
2926 ZEBRA_IPTABLE_DELETE
,
2929 bgp_encode_pbr_iptable_match(s
, pba
, pbm
);
2930 nb_interface
= bgp_pbr_get_ifnumber(pba
->bgp
);
2931 stream_putl(s
, nb_interface
);
2933 bgp_encode_pbr_interface_list(pba
->bgp
, s
);
2934 stream_putw_at(s
, 0, stream_get_endp(s
));
2935 ret
= zclient_send_message(zclient
);
2940 pbm
->install_iptable_in_progress
= true;
2944 /* inject in table <table_id> a default route to:
2945 * - if nexthop IP is present : to this nexthop
2946 * - if vrf is different from local : to the matching VRF
2948 void bgp_zebra_announce_default(struct bgp
*bgp
, struct nexthop
*nh
,
2949 afi_t afi
, uint32_t table_id
, bool announce
)
2951 struct zapi_nexthop
*api_nh
;
2952 struct zapi_route api
;
2955 if (!nh
|| nh
->type
!= NEXTHOP_TYPE_IPV4
2956 || nh
->vrf_id
== VRF_UNKNOWN
)
2958 memset(&p
, 0, sizeof(struct prefix
));
2963 memset(&api
, 0, sizeof(api
));
2964 api
.vrf_id
= bgp
->vrf_id
;
2965 api
.type
= ZEBRA_ROUTE_BGP
;
2966 api
.safi
= SAFI_UNICAST
;
2968 api
.tableid
= table_id
;
2969 api
.nexthop_num
= 1;
2970 SET_FLAG(api
.message
, ZAPI_MESSAGE_TABLEID
);
2971 SET_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
);
2972 api_nh
= &api
.nexthops
[0];
2974 api
.distance
= ZEBRA_EBGP_DISTANCE_DEFAULT
;
2975 SET_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
);
2978 if (nh
->gate
.ipv4
.s_addr
) {
2979 char buff
[PREFIX_STRLEN
];
2981 api_nh
->vrf_id
= nh
->vrf_id
;
2982 api_nh
->gate
.ipv4
= nh
->gate
.ipv4
;
2983 api_nh
->type
= NEXTHOP_TYPE_IPV4
;
2985 inet_ntop(AF_INET
, &(nh
->gate
.ipv4
), buff
, INET_ADDRSTRLEN
);
2986 if (BGP_DEBUG(zebra
, ZEBRA
))
2987 zlog_info("BGP: %s default route to %s table %d (redirect IP)",
2988 announce
? "adding" : "withdrawing",
2990 zclient_route_send(announce
? ZEBRA_ROUTE_ADD
2991 : ZEBRA_ROUTE_DELETE
,
2993 } else if (nh
->vrf_id
!= bgp
->vrf_id
) {
2995 struct interface
*ifp
;
2997 vrf
= vrf_lookup_by_id(nh
->vrf_id
);
3000 /* create default route with interface <VRF>
3001 * with nexthop-vrf <VRF>
3003 ifp
= if_lookup_by_name_all_vrf(vrf
->name
);
3006 api_nh
->vrf_id
= nh
->vrf_id
;
3007 api_nh
->type
= NEXTHOP_TYPE_IFINDEX
;
3008 api_nh
->ifindex
= ifp
->ifindex
;
3009 if (BGP_DEBUG(zebra
, ZEBRA
))
3010 zlog_info("BGP: %s default route to %s table %d (redirect VRF)",
3011 announce
? "adding" : "withdrawing",
3012 vrf
->name
, table_id
);
3013 zclient_route_send(announce
? ZEBRA_ROUTE_ADD
3014 : ZEBRA_ROUTE_DELETE
,
3020 /* Send capabilities to RIB */
3021 int bgp_zebra_send_capabilities(struct bgp
*bgp
, bool disable
)
3023 struct zapi_cap api
;
3024 int ret
= BGP_GR_SUCCESS
;
3026 if (zclient
== NULL
) {
3027 if (BGP_DEBUG(zebra
, ZEBRA
))
3028 zlog_debug("zclient invalid");
3029 return BGP_GR_FAILURE
;
3032 /* Check if the client is connected */
3033 if ((zclient
->sock
< 0) || (zclient
->t_connect
)) {
3034 if (BGP_DEBUG(zebra
, ZEBRA
))
3035 zlog_debug("client not connected");
3036 return BGP_GR_FAILURE
;
3039 /* Check if capability is already sent. If the flag force is set
3040 * send the capability since this can be initial bgp configuration
3042 memset(&api
, 0, sizeof(struct zapi_cap
));
3044 api
.cap
= ZEBRA_CLIENT_GR_DISABLE
;
3045 api
.vrf_id
= bgp
->vrf_id
;
3047 api
.cap
= ZEBRA_CLIENT_GR_CAPABILITIES
;
3048 api
.stale_removal_time
= bgp
->rib_stale_time
;
3049 api
.vrf_id
= bgp
->vrf_id
;
3052 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES
, zclient
, &api
)
3054 zlog_err("error sending capability");
3055 ret
= BGP_GR_FAILURE
;
3058 bgp
->present_zebra_gr_state
= ZEBRA_GR_DISABLE
;
3060 bgp
->present_zebra_gr_state
= ZEBRA_GR_ENABLE
;
3062 if (BGP_DEBUG(zebra
, ZEBRA
))
3063 zlog_debug("send capabilty success");
3064 ret
= BGP_GR_SUCCESS
;
3069 /* Send route update pesding or completed status to RIB for the
3070 * specific AFI, SAFI
3072 int bgp_zebra_update(afi_t afi
, safi_t safi
, vrf_id_t vrf_id
, int type
)
3074 struct zapi_cap api
= {0};
3076 if (zclient
== NULL
) {
3077 if (BGP_DEBUG(zebra
, ZEBRA
))
3078 zlog_debug("zclient == NULL, invalid");
3079 return BGP_GR_FAILURE
;
3082 /* Check if the client is connected */
3083 if ((zclient
->sock
< 0) || (zclient
->t_connect
)) {
3084 if (BGP_DEBUG(zebra
, ZEBRA
))
3085 zlog_debug("client not connected");
3086 return BGP_GR_FAILURE
;
3091 api
.vrf_id
= vrf_id
;
3094 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES
, zclient
, &api
)
3096 if (BGP_DEBUG(zebra
, ZEBRA
))
3097 zlog_debug("error sending capability");
3098 return BGP_GR_FAILURE
;
3100 return BGP_GR_SUCCESS
;
3104 /* Send RIB stale timer update */
3105 int bgp_zebra_stale_timer_update(struct bgp
*bgp
)
3107 struct zapi_cap api
;
3109 if (zclient
== NULL
) {
3110 if (BGP_DEBUG(zebra
, ZEBRA
))
3111 zlog_debug("zclient invalid");
3112 return BGP_GR_FAILURE
;
3115 /* Check if the client is connected */
3116 if ((zclient
->sock
< 0) || (zclient
->t_connect
)) {
3117 if (BGP_DEBUG(zebra
, ZEBRA
))
3118 zlog_debug("client not connected");
3119 return BGP_GR_FAILURE
;
3122 memset(&api
, 0, sizeof(struct zapi_cap
));
3123 api
.cap
= ZEBRA_CLIENT_RIB_STALE_TIME
;
3124 api
.stale_removal_time
= bgp
->rib_stale_time
;
3125 api
.vrf_id
= bgp
->vrf_id
;
3126 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES
, zclient
, &api
)
3128 if (BGP_DEBUG(zebra
, ZEBRA
))
3129 zlog_debug("error sending capability");
3130 return BGP_GR_FAILURE
;
3132 if (BGP_DEBUG(zebra
, ZEBRA
))
3133 zlog_debug("send capabilty success");
3134 return BGP_GR_SUCCESS
;