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
!= 1) && (peer
->gtsm_hops
!= 1)
283 || bgp_bfd_is_peer_multihop(peer
)))
285 /* Take down directly connected EBGP peers */
286 if ((peer
->ttl
!= 1) && (peer
->gtsm_hops
!= 1))
290 if (ifp
== peer
->nexthop
.ifp
) {
291 BGP_EVENT_ADD(peer
, BGP_Stop
);
292 peer
->last_reset
= PEER_DOWN_IF_DOWN
;
300 static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS
)
302 struct connected
*ifc
;
305 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
307 ifc
= zebra_interface_address_read(cmd
, zclient
->ibuf
, vrf_id
);
312 if (bgp_debug_zebra(ifc
->address
)) {
313 char buf
[PREFIX2STR_BUFFER
];
314 prefix2str(ifc
->address
, buf
, sizeof(buf
));
315 zlog_debug("Rx Intf address add VRF %u IF %s addr %s", vrf_id
,
316 ifc
->ifp
->name
, buf
);
322 if (if_is_operative(ifc
->ifp
)) {
323 bgp_connected_add(bgp
, ifc
);
325 /* If we have learnt of any neighbors on this interface,
326 * check to kick off any BGP interface-based neighbors,
327 * but only if this is a link-local address.
329 if (IN6_IS_ADDR_LINKLOCAL(&ifc
->address
->u
.prefix6
)
330 && !list_isempty(ifc
->ifp
->nbr_connected
))
331 bgp_start_interface_nbrs(bgp
, ifc
->ifp
);
337 static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS
)
339 struct connected
*ifc
;
342 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
344 ifc
= zebra_interface_address_read(cmd
, zclient
->ibuf
, vrf_id
);
349 if (bgp_debug_zebra(ifc
->address
)) {
350 char buf
[PREFIX2STR_BUFFER
];
351 prefix2str(ifc
->address
, buf
, sizeof(buf
));
352 zlog_debug("Rx Intf address del VRF %u IF %s addr %s", vrf_id
,
353 ifc
->ifp
->name
, buf
);
356 if (bgp
&& if_is_operative(ifc
->ifp
)) {
357 bgp_connected_delete(bgp
, ifc
);
365 static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS
)
367 struct nbr_connected
*ifc
= NULL
;
370 ifc
= zebra_interface_nbr_address_read(cmd
, zclient
->ibuf
, vrf_id
);
375 if (bgp_debug_zebra(ifc
->address
)) {
376 char buf
[PREFIX2STR_BUFFER
];
377 prefix2str(ifc
->address
, buf
, sizeof(buf
));
378 zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %s", vrf_id
,
379 ifc
->ifp
->name
, buf
);
382 if (if_is_operative(ifc
->ifp
)) {
383 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
385 bgp_nbr_connected_add(bgp
, ifc
);
391 static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS
)
393 struct nbr_connected
*ifc
= NULL
;
396 ifc
= zebra_interface_nbr_address_read(cmd
, zclient
->ibuf
, vrf_id
);
401 if (bgp_debug_zebra(ifc
->address
)) {
402 char buf
[PREFIX2STR_BUFFER
];
403 prefix2str(ifc
->address
, buf
, sizeof(buf
));
404 zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %s", vrf_id
,
405 ifc
->ifp
->name
, buf
);
408 if (if_is_operative(ifc
->ifp
)) {
409 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
411 bgp_nbr_connected_delete(bgp
, ifc
, 0);
414 nbr_connected_free(ifc
);
419 /* VRF update for an interface. */
420 static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS
)
422 struct interface
*ifp
;
425 struct nbr_connected
*nc
;
426 struct listnode
*node
, *nnode
;
430 ifp
= zebra_interface_vrf_update_read(zclient
->ibuf
, vrf_id
,
435 if (BGP_DEBUG(zebra
, ZEBRA
) && ifp
)
436 zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id
,
437 ifp
->name
, new_vrf_id
);
439 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
442 for (ALL_LIST_ELEMENTS(ifp
->connected
, node
, nnode
, c
))
443 bgp_connected_delete(bgp
, c
);
445 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, node
, nnode
, nc
))
446 bgp_nbr_connected_delete(bgp
, nc
, 1);
448 /* Fast external-failover */
449 if (!CHECK_FLAG(bgp
->flags
, BGP_FLAG_NO_FAST_EXT_FAILOVER
)) {
450 for (ALL_LIST_ELEMENTS(bgp
->peer
, node
, nnode
, peer
)) {
451 if ((peer
->ttl
!= 1) && (peer
->gtsm_hops
!= 1))
454 if (ifp
== peer
->nexthop
.ifp
)
455 BGP_EVENT_ADD(peer
, BGP_Stop
);
460 if_update_to_new_vrf(ifp
, new_vrf_id
);
462 bgp
= bgp_lookup_by_vrf_id(new_vrf_id
);
466 for (ALL_LIST_ELEMENTS(ifp
->connected
, node
, nnode
, c
))
467 bgp_connected_add(bgp
, c
);
469 for (ALL_LIST_ELEMENTS(ifp
->nbr_connected
, node
, nnode
, nc
))
470 bgp_nbr_connected_add(bgp
, nc
);
474 /* Zebra route add and delete treatment. */
475 static int zebra_read_route(ZAPI_CALLBACK_ARGS
)
477 enum nexthop_types_t nhtype
;
478 struct zapi_route api
;
479 union g_addr nexthop
;
484 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
488 if (zapi_route_decode(zclient
->ibuf
, &api
) < 0)
491 /* we completely ignore srcdest routes for now. */
492 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
495 /* ignore link-local address. */
496 if (api
.prefix
.family
== AF_INET6
497 && IN6_IS_ADDR_LINKLOCAL(&api
.prefix
.u
.prefix6
))
500 nexthop
= api
.nexthops
[0].gate
;
501 ifindex
= api
.nexthops
[0].ifindex
;
502 nhtype
= api
.nexthops
[0].type
;
504 add
= (cmd
== ZEBRA_REDISTRIBUTE_ROUTE_ADD
);
507 * The ADD message is actually an UPDATE and there is no
509 * for a prior redistributed route, if any. So, perform an
511 * DEL processing for the same redistributed route from any
515 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++) {
517 bgp_redistribute_delete(bgp
, &api
.prefix
, i
,
521 /* Now perform the add/update. */
522 bgp_redistribute_add(bgp
, &api
.prefix
, &nexthop
, ifindex
,
523 nhtype
, api
.metric
, api
.type
, api
.instance
,
526 bgp_redistribute_delete(bgp
, &api
.prefix
, api
.type
,
530 if (bgp_debug_zebra(&api
.prefix
)) {
531 char buf
[2][PREFIX_STRLEN
];
533 prefix2str(&api
.prefix
, buf
[0], sizeof(buf
[0]));
535 inet_ntop(api
.prefix
.family
, &nexthop
, buf
[1],
538 "Rx route ADD VRF %u %s[%d] %s nexthop %s (type %d if %u) metric %u tag %" ROUTE_TAG_PRI
,
539 vrf_id
, zebra_route_string(api
.type
),
540 api
.instance
, buf
[0], buf
[1], nhtype
,
541 ifindex
, api
.metric
, api
.tag
);
544 "Rx route DEL VRF %u %s[%d] %s",
545 vrf_id
, zebra_route_string(api
.type
),
546 api
.instance
, buf
[0]);
553 struct interface
*if_lookup_by_ipv4(struct in_addr
*addr
, vrf_id_t vrf_id
)
556 struct listnode
*cnode
;
557 struct interface
*ifp
;
558 struct connected
*connected
;
559 struct prefix_ipv4 p
;
562 vrf
= vrf_lookup_by_id(vrf_id
);
568 p
.prefixlen
= IPV4_MAX_BITLEN
;
570 FOR_ALL_INTERFACES (vrf
, ifp
) {
571 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
572 cp
= connected
->address
;
574 if (cp
->family
== AF_INET
)
575 if (prefix_match(cp
, (struct prefix
*)&p
))
582 struct interface
*if_lookup_by_ipv4_exact(struct in_addr
*addr
, vrf_id_t vrf_id
)
585 struct listnode
*cnode
;
586 struct interface
*ifp
;
587 struct connected
*connected
;
590 vrf
= vrf_lookup_by_id(vrf_id
);
594 FOR_ALL_INTERFACES (vrf
, ifp
) {
595 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
596 cp
= connected
->address
;
598 if (cp
->family
== AF_INET
)
599 if (IPV4_ADDR_SAME(&cp
->u
.prefix4
, addr
))
606 struct interface
*if_lookup_by_ipv6(struct in6_addr
*addr
, ifindex_t ifindex
,
610 struct listnode
*cnode
;
611 struct interface
*ifp
;
612 struct connected
*connected
;
613 struct prefix_ipv6 p
;
616 vrf
= vrf_lookup_by_id(vrf_id
);
622 p
.prefixlen
= IPV6_MAX_BITLEN
;
624 FOR_ALL_INTERFACES (vrf
, ifp
) {
625 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
626 cp
= connected
->address
;
628 if (cp
->family
== AF_INET6
)
629 if (prefix_match(cp
, (struct prefix
*)&p
)) {
630 if (IN6_IS_ADDR_LINKLOCAL(
632 if (ifindex
== ifp
->ifindex
)
642 struct interface
*if_lookup_by_ipv6_exact(struct in6_addr
*addr
,
643 ifindex_t ifindex
, vrf_id_t vrf_id
)
646 struct listnode
*cnode
;
647 struct interface
*ifp
;
648 struct connected
*connected
;
651 vrf
= vrf_lookup_by_id(vrf_id
);
655 FOR_ALL_INTERFACES (vrf
, ifp
) {
656 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
657 cp
= connected
->address
;
659 if (cp
->family
== AF_INET6
)
660 if (IPV6_ADDR_SAME(&cp
->u
.prefix6
, addr
)) {
661 if (IN6_IS_ADDR_LINKLOCAL(
663 if (ifindex
== ifp
->ifindex
)
673 static int if_get_ipv6_global(struct interface
*ifp
, struct in6_addr
*addr
)
675 struct listnode
*cnode
;
676 struct connected
*connected
;
679 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
680 cp
= connected
->address
;
682 if (cp
->family
== AF_INET6
)
683 if (!IN6_IS_ADDR_LINKLOCAL(&cp
->u
.prefix6
)) {
684 memcpy(addr
, &cp
->u
.prefix6
, IPV6_MAX_BYTELEN
);
691 static int if_get_ipv6_local(struct interface
*ifp
, struct in6_addr
*addr
)
693 struct listnode
*cnode
;
694 struct connected
*connected
;
697 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
698 cp
= connected
->address
;
700 if (cp
->family
== AF_INET6
)
701 if (IN6_IS_ADDR_LINKLOCAL(&cp
->u
.prefix6
)) {
702 memcpy(addr
, &cp
->u
.prefix6
, IPV6_MAX_BYTELEN
);
709 static int if_get_ipv4_address(struct interface
*ifp
, struct in_addr
*addr
)
711 struct listnode
*cnode
;
712 struct connected
*connected
;
715 for (ALL_LIST_ELEMENTS_RO(ifp
->connected
, cnode
, connected
)) {
716 cp
= connected
->address
;
717 if ((cp
->family
== AF_INET
)
718 && !ipv4_martian(&(cp
->u
.prefix4
))) {
719 *addr
= cp
->u
.prefix4
;
727 bool bgp_zebra_nexthop_set(union sockunion
*local
, union sockunion
*remote
,
728 struct bgp_nexthop
*nexthop
, struct peer
*peer
)
731 struct interface
*ifp
= NULL
;
733 memset(nexthop
, 0, sizeof(struct bgp_nexthop
));
740 if (local
->sa
.sa_family
== AF_INET
) {
741 nexthop
->v4
= local
->sin
.sin_addr
;
743 ifp
= if_lookup_by_name(peer
->update_if
,
746 ifp
= if_lookup_by_ipv4_exact(&local
->sin
.sin_addr
,
749 if (local
->sa
.sa_family
== AF_INET6
) {
750 memcpy(&nexthop
->v6_global
, &local
->sin6
.sin6_addr
, IPV6_MAX_BYTELEN
);
751 if (IN6_IS_ADDR_LINKLOCAL(&local
->sin6
.sin6_addr
)) {
752 if (peer
->conf_if
|| peer
->ifname
)
753 ifp
= if_lookup_by_name(peer
->conf_if
757 } else if (peer
->update_if
)
758 ifp
= if_lookup_by_name(peer
->update_if
,
761 ifp
= if_lookup_by_ipv6_exact(&local
->sin6
.sin6_addr
,
762 local
->sin6
.sin6_scope_id
,
768 * BGP views do not currently get proper data
769 * from zebra( when attached ) to be able to
770 * properly resolve nexthops, so give this
771 * instance type a pass.
773 if (peer
->bgp
->inst_type
== BGP_INSTANCE_TYPE_VIEW
)
776 * If we have no interface data but we have established
777 * some connection w/ zebra than something has gone
778 * terribly terribly wrong here, so say this failed
779 * If we do not any zebra connection then not
780 * having a ifp pointer is ok.
782 return zclient_num_connects
? false : true;
787 /* IPv4 connection, fetch and store IPv6 local address(es) if any. */
788 if (local
->sa
.sa_family
== AF_INET
) {
790 ret
= if_get_ipv6_global(ifp
, &nexthop
->v6_global
);
793 /* There is no global nexthop. Use link-local address as
795 * global and link-local nexthop. In this scenario, the
797 * for interop is that the network admin would use a
799 * specify the global IPv6 nexthop.
801 if_get_ipv6_local(ifp
, &nexthop
->v6_global
);
802 memcpy(&nexthop
->v6_local
, &nexthop
->v6_global
,
805 if_get_ipv6_local(ifp
, &nexthop
->v6_local
);
807 if (if_lookup_by_ipv4(&remote
->sin
.sin_addr
, peer
->bgp
->vrf_id
))
808 peer
->shared_network
= 1;
810 peer
->shared_network
= 0;
813 /* IPv6 connection, fetch and store IPv4 local address if any. */
814 if (local
->sa
.sa_family
== AF_INET6
) {
815 struct interface
*direct
= NULL
;
818 ret
= if_get_ipv4_address(ifp
, &nexthop
->v4
);
819 if (!ret
&& peer
->local_id
.s_addr
)
820 nexthop
->v4
= peer
->local_id
;
823 if (!IN6_IS_ADDR_LINKLOCAL(&local
->sin6
.sin6_addr
)) {
824 memcpy(&nexthop
->v6_global
, &local
->sin6
.sin6_addr
,
827 /* If directory connected set link-local address. */
828 direct
= if_lookup_by_ipv6(&remote
->sin6
.sin6_addr
,
829 remote
->sin6
.sin6_scope_id
,
832 if_get_ipv6_local(ifp
, &nexthop
->v6_local
);
834 /* Link-local address. */
836 ret
= if_get_ipv6_global(ifp
, &nexthop
->v6_global
);
838 /* If there is no global address. Set link-local
840 global. I know this break RFC specification... */
841 /* In this scenario, the expectation for interop is that
843 * network admin would use a route-map to specify the
848 memcpy(&nexthop
->v6_global
,
849 &local
->sin6
.sin6_addr
,
851 /* Always set the link-local address */
852 memcpy(&nexthop
->v6_local
, &local
->sin6
.sin6_addr
,
856 if (IN6_IS_ADDR_LINKLOCAL(&local
->sin6
.sin6_addr
)
857 || if_lookup_by_ipv6(&remote
->sin6
.sin6_addr
,
858 remote
->sin6
.sin6_scope_id
,
860 peer
->shared_network
= 1;
862 peer
->shared_network
= 0;
865 /* KAME stack specific treatment. */
867 if (IN6_IS_ADDR_LINKLOCAL(&nexthop
->v6_global
)
868 && IN6_LINKLOCAL_IFINDEX(nexthop
->v6_global
)) {
869 SET_IN6_LINKLOCAL_IFINDEX(nexthop
->v6_global
, 0);
871 if (IN6_IS_ADDR_LINKLOCAL(&nexthop
->v6_local
)
872 && IN6_LINKLOCAL_IFINDEX(nexthop
->v6_local
)) {
873 SET_IN6_LINKLOCAL_IFINDEX(nexthop
->v6_local
, 0);
877 /* If we have identified the local interface, there is no error for now.
882 static struct in6_addr
*
883 bgp_path_info_to_ipv6_nexthop(struct bgp_path_info
*path
, ifindex_t
*ifindex
)
885 struct in6_addr
*nexthop
= NULL
;
887 /* Only global address nexthop exists. */
888 if (path
->attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_IPV6_GLOBAL
889 || path
->attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_VPNV6_GLOBAL
) {
890 nexthop
= &path
->attr
->mp_nexthop_global
;
891 if (IN6_IS_ADDR_LINKLOCAL(nexthop
))
892 *ifindex
= path
->attr
->nh_ifindex
;
895 /* If both global and link-local address present. */
896 if (path
->attr
->mp_nexthop_len
== BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
897 || path
->attr
->mp_nexthop_len
898 == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL
) {
899 /* Check if route-map is set to prefer global over link-local */
900 if (path
->attr
->mp_nexthop_prefer_global
) {
901 nexthop
= &path
->attr
->mp_nexthop_global
;
902 if (IN6_IS_ADDR_LINKLOCAL(nexthop
))
903 *ifindex
= path
->attr
->nh_ifindex
;
905 /* Workaround for Cisco's nexthop bug. */
906 if (IN6_IS_ADDR_UNSPECIFIED(
907 &path
->attr
->mp_nexthop_global
)
908 && path
->peer
->su_remote
->sa
.sa_family
911 &path
->peer
->su_remote
->sin6
.sin6_addr
;
912 if (IN6_IS_ADDR_LINKLOCAL(nexthop
))
913 *ifindex
= path
->peer
->nexthop
.ifp
916 nexthop
= &path
->attr
->mp_nexthop_local
;
917 if (IN6_IS_ADDR_LINKLOCAL(nexthop
))
918 *ifindex
= path
->attr
->nh_lla_ifindex
;
926 static int bgp_table_map_apply(struct route_map
*map
, struct prefix
*p
,
927 struct bgp_path_info
*path
)
929 route_map_result_t ret
;
931 ret
= route_map_apply(map
, p
, RMAP_BGP
, path
);
932 bgp_attr_flush(path
->attr
);
934 if (ret
!= RMAP_DENYMATCH
)
937 if (bgp_debug_zebra(p
)) {
938 if (p
->family
== AF_INET
) {
939 char buf
[2][INET_ADDRSTRLEN
];
941 "Zebra rmap deny: IPv4 route %s/%d nexthop %s",
942 inet_ntop(AF_INET
, &p
->u
.prefix4
, buf
[0],
945 inet_ntop(AF_INET
, &path
->attr
->nexthop
, buf
[1],
948 if (p
->family
== AF_INET6
) {
949 char buf
[2][INET6_ADDRSTRLEN
];
951 struct in6_addr
*nexthop
;
953 nexthop
= bgp_path_info_to_ipv6_nexthop(path
, &ifindex
);
955 "Zebra rmap deny: IPv6 route %s/%d nexthop %s",
956 inet_ntop(AF_INET6
, &p
->u
.prefix6
, buf
[0],
959 inet_ntop(AF_INET6
, nexthop
,
960 buf
[1], sizeof(buf
[1])));
966 static struct thread
*bgp_tm_thread_connect
;
967 static bool bgp_tm_status_connected
;
968 static bool bgp_tm_chunk_obtained
;
969 #define BGP_FLOWSPEC_TABLE_CHUNK 100000
970 static uint32_t bgp_tm_min
, bgp_tm_max
, bgp_tm_chunk_size
;
971 struct bgp
*bgp_tm_bgp
;
973 static int bgp_zebra_tm_connect(struct thread
*t
)
975 struct zclient
*zclient
;
976 int delay
= 10, ret
= 0;
978 zclient
= THREAD_ARG(t
);
979 if (bgp_tm_status_connected
&& zclient
->sock
> 0)
982 bgp_tm_status_connected
= false;
983 ret
= tm_table_manager_connect(zclient
);
986 zlog_info("Error connecting to table manager!");
987 bgp_tm_status_connected
= false;
989 if (!bgp_tm_status_connected
)
990 zlog_debug("Connecting to table manager. Success");
991 bgp_tm_status_connected
= true;
992 if (!bgp_tm_chunk_obtained
) {
993 if (bgp_zebra_get_table_range(bgp_tm_chunk_size
,
996 bgp_tm_chunk_obtained
= true;
997 /* parse non installed entries */
998 bgp_zebra_announce_table(bgp_tm_bgp
, AFI_IP
, SAFI_FLOWSPEC
);
1002 thread_add_timer(bm
->master
, bgp_zebra_tm_connect
, zclient
, delay
,
1003 &bgp_tm_thread_connect
);
1007 bool bgp_zebra_tm_chunk_obtained(void)
1009 return bgp_tm_chunk_obtained
;
1012 uint32_t bgp_zebra_tm_get_id(void)
1014 static int table_id
;
1016 if (!bgp_tm_chunk_obtained
)
1018 return bgp_tm_min
++;
1021 void bgp_zebra_init_tm_connect(struct bgp
*bgp
)
1025 /* if already set, do nothing
1027 if (bgp_tm_thread_connect
!= NULL
)
1029 bgp_tm_status_connected
= false;
1030 bgp_tm_chunk_obtained
= false;
1031 bgp_tm_min
= bgp_tm_max
= 0;
1032 bgp_tm_chunk_size
= BGP_FLOWSPEC_TABLE_CHUNK
;
1034 thread_add_timer(bm
->master
, bgp_zebra_tm_connect
, zclient
, delay
,
1035 &bgp_tm_thread_connect
);
1038 int bgp_zebra_get_table_range(uint32_t chunk_size
,
1039 uint32_t *start
, uint32_t *end
)
1043 if (!bgp_tm_status_connected
)
1045 ret
= tm_get_table_chunk(zclient
, chunk_size
, start
, end
);
1047 flog_err(EC_BGP_TABLE_CHUNK
,
1048 "BGP: Error getting table chunk %u", chunk_size
);
1051 zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]",
1052 chunk_size
, *start
, *end
);
1056 static int update_ipv4nh_for_route_install(int nh_othervrf
,
1058 struct in_addr
*nexthop
,
1061 struct zapi_nexthop
*api_nh
)
1063 api_nh
->gate
.ipv4
= *nexthop
;
1064 api_nh
->vrf_id
= nh_bgp
->vrf_id
;
1066 /* Need to set fields appropriately for EVPN routes imported into
1067 * a VRF (which are programmed as onlink on l3-vni SVI) as well as
1068 * connected routes leaked into a VRF.
1071 api_nh
->type
= NEXTHOP_TYPE_IPV4_IFINDEX
;
1072 api_nh
->onlink
= true;
1073 api_nh
->ifindex
= nh_bgp
->l3vni_svi_ifindex
;
1074 } else if (nh_othervrf
&&
1075 api_nh
->gate
.ipv4
.s_addr
== INADDR_ANY
) {
1076 api_nh
->type
= NEXTHOP_TYPE_IFINDEX
;
1077 api_nh
->ifindex
= attr
->nh_ifindex
;
1079 api_nh
->type
= NEXTHOP_TYPE_IPV4
;
1085 update_ipv6nh_for_route_install(int nh_othervrf
, struct bgp
*nh_bgp
,
1086 struct in6_addr
*nexthop
,
1087 ifindex_t ifindex
, struct bgp_path_info
*pi
,
1088 struct bgp_path_info
*best_pi
, bool is_evpn
,
1089 struct zapi_nexthop
*api_nh
)
1094 api_nh
->vrf_id
= nh_bgp
->vrf_id
;
1097 api_nh
->type
= NEXTHOP_TYPE_IPV6_IFINDEX
;
1098 api_nh
->onlink
= true;
1099 api_nh
->ifindex
= nh_bgp
->l3vni_svi_ifindex
;
1100 } else if (nh_othervrf
) {
1101 if (IN6_IS_ADDR_UNSPECIFIED(nexthop
)) {
1102 api_nh
->type
= NEXTHOP_TYPE_IFINDEX
;
1103 api_nh
->ifindex
= attr
->nh_ifindex
;
1104 } else if (IN6_IS_ADDR_LINKLOCAL(nexthop
)) {
1107 api_nh
->type
= NEXTHOP_TYPE_IPV6_IFINDEX
;
1108 api_nh
->ifindex
= ifindex
;
1110 api_nh
->type
= NEXTHOP_TYPE_IPV6
;
1111 api_nh
->ifindex
= 0;
1114 if (IN6_IS_ADDR_LINKLOCAL(nexthop
)) {
1116 && attr
->mp_nexthop_len
1117 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
)
1118 if (pi
->peer
->nexthop
.ifp
)
1120 pi
->peer
->nexthop
.ifp
->ifindex
;
1122 if (pi
->peer
->conf_if
)
1123 ifindex
= pi
->peer
->ifp
->ifindex
;
1124 else if (pi
->peer
->ifname
)
1125 ifindex
= ifname2ifindex(
1127 pi
->peer
->bgp
->vrf_id
);
1128 else if (pi
->peer
->nexthop
.ifp
)
1130 pi
->peer
->nexthop
.ifp
->ifindex
;
1135 api_nh
->type
= NEXTHOP_TYPE_IPV6_IFINDEX
;
1136 api_nh
->ifindex
= ifindex
;
1138 api_nh
->type
= NEXTHOP_TYPE_IPV6
;
1139 api_nh
->ifindex
= 0;
1142 api_nh
->gate
.ipv6
= *nexthop
;
1147 void bgp_zebra_announce(struct bgp_node
*rn
, struct prefix
*p
,
1148 struct bgp_path_info
*info
, struct bgp
*bgp
, afi_t afi
,
1151 struct zapi_route api
;
1152 struct zapi_nexthop
*api_nh
;
1154 unsigned int valid_nh_count
= 0;
1155 int has_valid_label
= 0;
1158 struct bgp_path_info
*mpinfo
;
1160 struct attr local_attr
;
1161 struct bgp_path_info local_info
;
1162 struct bgp_path_info
*mpinfo_cp
= &local_info
;
1165 int nh_othervrf
= 0;
1166 char buf_prefix
[PREFIX_STRLEN
]; /* filled in if we are debugging */
1170 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1171 * know of this instance.
1173 if (!bgp_install_info_to_zebra(bgp
))
1176 if (bgp
->main_zebra_update_hold
)
1179 if (bgp_debug_zebra(p
))
1180 prefix2str(p
, buf_prefix
, sizeof(buf_prefix
));
1182 if (safi
== SAFI_FLOWSPEC
) {
1183 bgp_pbr_update_entry(bgp
, &rn
->p
, info
, afi
, safi
, true);
1188 * vrf leaking support (will have only one nexthop)
1190 if (info
->extra
&& info
->extra
->bgp_orig
)
1193 /* Make Zebra API structure. */
1194 memset(&api
, 0, sizeof(api
));
1195 api
.vrf_id
= bgp
->vrf_id
;
1196 api
.type
= ZEBRA_ROUTE_BGP
;
1199 SET_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
);
1203 if (info
->type
== ZEBRA_ROUTE_BGP
1204 && info
->sub_type
== BGP_ROUTE_IMPORTED
) {
1206 /* Obtain peer from parent */
1207 if (info
->extra
&& info
->extra
->parent
)
1208 peer
= ((struct bgp_path_info
*)(info
->extra
->parent
))
1212 tag
= info
->attr
->tag
;
1214 /* If the route's source is EVPN, flag as such. */
1215 is_evpn
= is_route_parent_evpn(info
);
1217 SET_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
);
1219 if (peer
->sort
== BGP_PEER_IBGP
|| peer
->sort
== BGP_PEER_CONFED
1220 || info
->sub_type
== BGP_ROUTE_AGGREGATE
) {
1221 SET_FLAG(api
.flags
, ZEBRA_FLAG_IBGP
);
1222 SET_FLAG(api
.flags
, ZEBRA_FLAG_ALLOW_RECURSION
);
1225 if ((peer
->sort
== BGP_PEER_EBGP
&& peer
->ttl
!= 1)
1226 || CHECK_FLAG(peer
->flags
, PEER_FLAG_DISABLE_CONNECTED_CHECK
)
1227 || bgp_flag_check(bgp
, BGP_FLAG_DISABLE_NH_CONNECTED_CHK
))
1229 SET_FLAG(api
.flags
, ZEBRA_FLAG_ALLOW_RECURSION
);
1231 if (info
->attr
->rmap_table_id
) {
1232 SET_FLAG(api
.message
, ZAPI_MESSAGE_TABLEID
);
1233 api
.tableid
= info
->attr
->rmap_table_id
;
1236 /* Metric is currently based on the best-path only */
1237 metric
= info
->attr
->med
;
1238 for (mpinfo
= info
; mpinfo
; mpinfo
= bgp_path_info_mpath_next(mpinfo
)) {
1239 if (valid_nh_count
>= multipath_num
)
1242 *mpinfo_cp
= *mpinfo
;
1244 /* Get nexthop address-family */
1245 if (p
->family
== AF_INET
1246 && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp
->attr
))
1247 nh_family
= AF_INET
;
1248 else if (p
->family
== AF_INET6
1249 || (p
->family
== AF_INET
1250 && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp
->attr
)))
1251 nh_family
= AF_INET6
;
1255 api_nh
= &api
.nexthops
[valid_nh_count
];
1256 if (nh_family
== AF_INET
) {
1257 if (bgp_debug_zebra(&api
.prefix
)) {
1258 if (mpinfo
->extra
) {
1260 "%s: p=%s, bgp_is_valid_label: %d",
1261 __func__
, buf_prefix
,
1267 "%s: p=%s, extra is NULL, no label",
1268 __func__
, buf_prefix
);
1272 if (bgp
->table_map
[afi
][safi
].name
) {
1273 /* Copy info and attributes, so the route-map
1274 apply doesn't modify the BGP route info. */
1275 local_attr
= *mpinfo
->attr
;
1276 mpinfo_cp
->attr
= &local_attr
;
1279 if (bgp
->table_map
[afi
][safi
].name
) {
1280 if (!bgp_table_map_apply(
1281 bgp
->table_map
[afi
][safi
].map
, p
,
1285 /* metric/tag is only allowed to be
1286 * overridden on 1st nexthop */
1287 if (mpinfo
== info
) {
1288 metric
= mpinfo_cp
->attr
->med
;
1289 tag
= mpinfo_cp
->attr
->tag
;
1293 nh_updated
= update_ipv4nh_for_route_install(
1296 info
->extra
->bgp_orig
: bgp
,
1297 &mpinfo_cp
->attr
->nexthop
,
1298 mpinfo_cp
->attr
, is_evpn
, api_nh
);
1300 ifindex_t ifindex
= IFINDEX_INTERNAL
;
1301 struct in6_addr
*nexthop
;
1303 if (bgp
->table_map
[afi
][safi
].name
) {
1304 /* Copy info and attributes, so the route-map
1305 apply doesn't modify the BGP route info. */
1306 local_attr
= *mpinfo
->attr
;
1307 mpinfo_cp
->attr
= &local_attr
;
1310 if (bgp
->table_map
[afi
][safi
].name
) {
1311 /* Copy info and attributes, so the route-map
1312 apply doesn't modify the BGP route info. */
1313 local_attr
= *mpinfo
->attr
;
1314 mpinfo_cp
->attr
= &local_attr
;
1316 if (!bgp_table_map_apply(
1317 bgp
->table_map
[afi
][safi
].map
, p
,
1321 /* metric/tag is only allowed to be
1322 * overridden on 1st nexthop */
1323 if (mpinfo
== info
) {
1324 metric
= mpinfo_cp
->attr
->med
;
1325 tag
= mpinfo_cp
->attr
->tag
;
1328 nexthop
= bgp_path_info_to_ipv6_nexthop(mpinfo_cp
,
1330 nh_updated
= update_ipv6nh_for_route_install(
1331 nh_othervrf
, nh_othervrf
?
1332 info
->extra
->bgp_orig
: bgp
,
1334 mpinfo
, info
, is_evpn
, api_nh
);
1337 /* Did we get proper nexthop info to update zebra? */
1342 && bgp_is_valid_label(&mpinfo
->extra
->label
[0])
1343 && !CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
)) {
1344 has_valid_label
= 1;
1345 label
= label_pton(&mpinfo
->extra
->label
[0]);
1347 api_nh
->label_num
= 1;
1348 api_nh
->labels
[0] = label
;
1350 memcpy(&api_nh
->rmac
, &(mpinfo
->attr
->rmac
),
1351 sizeof(struct ethaddr
));
1356 /* if this is a evpn route we don't have to include the label */
1357 if (has_valid_label
&& !(CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
)))
1358 SET_FLAG(api
.message
, ZAPI_MESSAGE_LABEL
);
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
];
1390 prefix2str(&api
.prefix
, prefix_buf
, sizeof(prefix_buf
));
1391 zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI
1393 valid_nh_count
? "add" : "delete", bgp
->vrf_id
,
1394 prefix_buf
, api
.metric
, api
.tag
, api
.nexthop_num
);
1395 for (i
= 0; i
< api
.nexthop_num
; i
++) {
1396 api_nh
= &api
.nexthops
[i
];
1398 switch (api_nh
->type
) {
1399 case NEXTHOP_TYPE_IFINDEX
:
1402 case NEXTHOP_TYPE_IPV4
:
1403 case NEXTHOP_TYPE_IPV4_IFINDEX
:
1404 nh_family
= AF_INET
;
1405 inet_ntop(nh_family
, &api_nh
->gate
, nh_buf
,
1408 case NEXTHOP_TYPE_IPV6
:
1409 case NEXTHOP_TYPE_IPV6_IFINDEX
:
1410 nh_family
= AF_INET6
;
1411 inet_ntop(nh_family
, &api_nh
->gate
, nh_buf
,
1414 case NEXTHOP_TYPE_BLACKHOLE
:
1415 strlcpy(nh_buf
, "blackhole", sizeof(nh_buf
));
1418 /* Note: add new nexthop case */
1423 label_buf
[0] = '\0';
1425 && !CHECK_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
))
1426 sprintf(label_buf
, "label %u",
1428 zlog_debug(" nhop [%d]: %s if %u VRF %u %s",
1429 i
+ 1, nh_buf
, api_nh
->ifindex
,
1430 api_nh
->vrf_id
, label_buf
);
1434 if (bgp_debug_zebra(p
)) {
1435 int recursion_flag
= 0;
1437 if (CHECK_FLAG(api
.flags
, ZEBRA_FLAG_ALLOW_RECURSION
))
1440 zlog_debug("%s: %s: announcing to zebra (recursion %sset)",
1441 __func__
, buf_prefix
,
1442 (recursion_flag
? "" : "NOT "));
1444 zclient_route_send(valid_nh_count
? ZEBRA_ROUTE_ADD
1445 : ZEBRA_ROUTE_DELETE
,
1449 /* Announce all routes of a table to zebra */
1450 void bgp_zebra_announce_table(struct bgp
*bgp
, afi_t afi
, safi_t safi
)
1452 struct bgp_node
*rn
;
1453 struct bgp_table
*table
;
1454 struct bgp_path_info
*pi
;
1456 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1457 * know of this instance.
1459 if (!bgp_install_info_to_zebra(bgp
))
1462 table
= bgp
->rib
[afi
][safi
];
1466 for (rn
= bgp_table_top(table
); rn
; rn
= bgp_route_next(rn
))
1467 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
)
1468 if (CHECK_FLAG(pi
->flags
, BGP_PATH_SELECTED
) &&
1470 (pi
->type
== ZEBRA_ROUTE_BGP
1471 && (pi
->sub_type
== BGP_ROUTE_NORMAL
1472 || pi
->sub_type
== BGP_ROUTE_IMPORTED
)))
1474 bgp_zebra_announce(rn
, &rn
->p
, pi
, bgp
, afi
,
1478 void bgp_zebra_withdraw(struct prefix
*p
, struct bgp_path_info
*info
,
1479 struct bgp
*bgp
, safi_t safi
)
1481 struct zapi_route api
;
1484 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1485 * know of this instance.
1487 if (!bgp_install_info_to_zebra(bgp
))
1490 if (safi
== SAFI_FLOWSPEC
) {
1492 bgp_pbr_update_entry(peer
->bgp
, p
, info
, AFI_IP
, safi
, false);
1496 memset(&api
, 0, sizeof(api
));
1497 api
.vrf_id
= bgp
->vrf_id
;
1498 api
.type
= ZEBRA_ROUTE_BGP
;
1502 if (info
->attr
->rmap_table_id
) {
1503 SET_FLAG(api
.message
, ZAPI_MESSAGE_TABLEID
);
1504 api
.tableid
= info
->attr
->rmap_table_id
;
1507 /* If the route's source is EVPN, flag as such. */
1508 if (is_route_parent_evpn(info
))
1509 SET_FLAG(api
.flags
, ZEBRA_FLAG_EVPN_ROUTE
);
1511 if (bgp_debug_zebra(p
)) {
1512 char buf
[PREFIX_STRLEN
];
1514 prefix2str(&api
.prefix
, buf
, sizeof(buf
));
1515 zlog_debug("Tx route delete VRF %u %s", bgp
->vrf_id
, buf
);
1518 zclient_route_send(ZEBRA_ROUTE_DELETE
, zclient
, &api
);
1521 struct bgp_redist
*bgp_redist_lookup(struct bgp
*bgp
, afi_t afi
, uint8_t type
,
1522 unsigned short instance
)
1524 struct list
*red_list
;
1525 struct listnode
*node
;
1526 struct bgp_redist
*red
;
1528 red_list
= bgp
->redist
[afi
][type
];
1532 for (ALL_LIST_ELEMENTS_RO(red_list
, node
, red
))
1533 if (red
->instance
== instance
)
1539 struct bgp_redist
*bgp_redist_add(struct bgp
*bgp
, afi_t afi
, uint8_t type
,
1540 unsigned short instance
)
1542 struct list
*red_list
;
1543 struct bgp_redist
*red
;
1545 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
1549 if (!bgp
->redist
[afi
][type
])
1550 bgp
->redist
[afi
][type
] = list_new();
1552 red_list
= bgp
->redist
[afi
][type
];
1553 red
= XCALLOC(MTYPE_BGP_REDIST
, sizeof(struct bgp_redist
));
1554 red
->instance
= instance
;
1556 listnode_add(red_list
, red
);
1561 static void bgp_redist_del(struct bgp
*bgp
, afi_t afi
, uint8_t type
,
1562 unsigned short instance
)
1564 struct bgp_redist
*red
;
1566 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
1569 listnode_delete(bgp
->redist
[afi
][type
], red
);
1570 XFREE(MTYPE_BGP_REDIST
, red
);
1571 if (!bgp
->redist
[afi
][type
]->count
)
1572 list_delete(&bgp
->redist
[afi
][type
]);
1576 /* Other routes redistribution into BGP. */
1577 int bgp_redistribute_set(struct bgp
*bgp
, afi_t afi
, int type
,
1578 unsigned short instance
, bool changed
)
1580 /* If redistribute options are changed call
1581 * bgp_redistribute_unreg() to reset the option and withdraw
1585 bgp_redistribute_unreg(bgp
, afi
, type
, instance
);
1587 /* Return if already redistribute flag is set. */
1589 if (redist_check_instance(&zclient
->mi_redist
[afi
][type
],
1593 redist_add_instance(&zclient
->mi_redist
[afi
][type
], instance
);
1595 if (vrf_bitmap_check(zclient
->redist
[afi
][type
], bgp
->vrf_id
))
1599 if (EVPN_ENABLED(bgp
) && type
== ZEBRA_ROUTE_VNC_DIRECT
) {
1600 vnc_export_bgp_enable(
1601 bgp
, afi
); /* only enables if mode bits cfg'd */
1605 vrf_bitmap_set(zclient
->redist
[afi
][type
], bgp
->vrf_id
);
1609 * Don't try to register if we're not connected to Zebra or Zebra
1610 * doesn't know of this instance.
1612 * When we come up later well resend if needed.
1614 if (!bgp_install_info_to_zebra(bgp
))
1617 if (BGP_DEBUG(zebra
, ZEBRA
))
1618 zlog_debug("Tx redistribute add VRF %u afi %d %s %d",
1619 bgp
->vrf_id
, afi
, zebra_route_string(type
),
1622 /* Send distribute add message to zebra. */
1623 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD
, zclient
, afi
, type
,
1624 instance
, bgp
->vrf_id
);
1629 int bgp_redistribute_resend(struct bgp
*bgp
, afi_t afi
, int type
,
1630 unsigned short instance
)
1632 /* Don't try to send if we're not connected to Zebra or Zebra doesn't
1633 * know of this instance.
1635 if (!bgp_install_info_to_zebra(bgp
))
1638 if (BGP_DEBUG(zebra
, ZEBRA
))
1639 zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d",
1640 bgp
->vrf_id
, afi
, zebra_route_string(type
),
1643 /* Send distribute add message to zebra. */
1644 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE
, zclient
, afi
, type
,
1645 instance
, bgp
->vrf_id
);
1646 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD
, zclient
, afi
, type
,
1647 instance
, bgp
->vrf_id
);
1652 /* Redistribute with route-map specification. */
1653 int bgp_redistribute_rmap_set(struct bgp_redist
*red
, const char *name
,
1654 struct route_map
*route_map
)
1656 if (red
->rmap
.name
&& (strcmp(red
->rmap
.name
, name
) == 0))
1659 XFREE(MTYPE_ROUTE_MAP_NAME
, red
->rmap
.name
);
1660 /* Decrement the count for existing routemap and
1661 * increment the count for new route map.
1663 route_map_counter_decrement(red
->rmap
.map
);
1664 red
->rmap
.name
= XSTRDUP(MTYPE_ROUTE_MAP_NAME
, name
);
1665 red
->rmap
.map
= route_map
;
1666 route_map_counter_increment(red
->rmap
.map
);
1671 /* Redistribute with metric specification. */
1672 int bgp_redistribute_metric_set(struct bgp
*bgp
, struct bgp_redist
*red
,
1673 afi_t afi
, int type
, uint32_t metric
)
1675 struct bgp_node
*rn
;
1676 struct bgp_path_info
*pi
;
1678 if (red
->redist_metric_flag
&& red
->redist_metric
== metric
)
1681 red
->redist_metric_flag
= 1;
1682 red
->redist_metric
= metric
;
1684 for (rn
= bgp_table_top(bgp
->rib
[afi
][SAFI_UNICAST
]); rn
;
1685 rn
= bgp_route_next(rn
)) {
1686 for (pi
= bgp_node_get_bgp_path_info(rn
); pi
; pi
= pi
->next
) {
1687 if (pi
->sub_type
== BGP_ROUTE_REDISTRIBUTE
1689 && pi
->instance
== red
->instance
) {
1690 struct attr
*old_attr
;
1691 struct attr new_attr
;
1693 bgp_attr_dup(&new_attr
, pi
->attr
);
1694 new_attr
.med
= red
->redist_metric
;
1695 old_attr
= pi
->attr
;
1696 pi
->attr
= bgp_attr_intern(&new_attr
);
1697 bgp_attr_unintern(&old_attr
);
1699 bgp_path_info_set_flag(rn
, pi
,
1700 BGP_PATH_ATTR_CHANGED
);
1701 bgp_process(bgp
, rn
, afi
, SAFI_UNICAST
);
1709 /* Unset redistribution. */
1710 int bgp_redistribute_unreg(struct bgp
*bgp
, afi_t afi
, int type
,
1711 unsigned short instance
)
1713 struct bgp_redist
*red
;
1715 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
1719 /* Return if zebra connection is disabled. */
1721 if (!redist_check_instance(&zclient
->mi_redist
[afi
][type
],
1724 redist_del_instance(&zclient
->mi_redist
[afi
][type
], instance
);
1726 if (!vrf_bitmap_check(zclient
->redist
[afi
][type
], bgp
->vrf_id
))
1728 vrf_bitmap_unset(zclient
->redist
[afi
][type
], bgp
->vrf_id
);
1732 if (bgp_install_info_to_zebra(bgp
)) {
1733 /* Send distribute delete message to zebra. */
1734 if (BGP_DEBUG(zebra
, ZEBRA
))
1735 zlog_debug("Tx redistribute del VRF %u afi %d %s %d",
1736 bgp
->vrf_id
, afi
, zebra_route_string(type
),
1738 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE
, zclient
, afi
,
1739 type
, instance
, bgp
->vrf_id
);
1742 /* Withdraw redistributed routes from current BGP's routing table. */
1743 bgp_redistribute_withdraw(bgp
, afi
, type
, instance
);
1748 /* Unset redistribution. */
1749 int bgp_redistribute_unset(struct bgp
*bgp
, afi_t afi
, int type
,
1750 unsigned short instance
)
1752 struct bgp_redist
*red
;
1755 * vnc and vpn->vrf checks must be before red check because
1756 * they operate within bgpd irrespective of zebra connection
1757 * status. red lookup fails if there is no zebra connection.
1760 if (EVPN_ENABLED(bgp
) && type
== ZEBRA_ROUTE_VNC_DIRECT
) {
1761 vnc_export_bgp_disable(bgp
, afi
);
1765 red
= bgp_redist_lookup(bgp
, afi
, type
, instance
);
1769 bgp_redistribute_unreg(bgp
, afi
, type
, instance
);
1771 /* Unset route-map. */
1772 XFREE(MTYPE_ROUTE_MAP_NAME
, red
->rmap
.name
);
1773 route_map_counter_decrement(red
->rmap
.map
);
1774 red
->rmap
.name
= NULL
;
1775 red
->rmap
.map
= NULL
;
1778 red
->redist_metric_flag
= 0;
1779 red
->redist_metric
= 0;
1781 bgp_redist_del(bgp
, afi
, type
, instance
);
1786 void bgp_redistribute_redo(struct bgp
*bgp
)
1790 struct list
*red_list
;
1791 struct listnode
*node
;
1792 struct bgp_redist
*red
;
1794 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++) {
1795 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++) {
1797 red_list
= bgp
->redist
[afi
][i
];
1801 for (ALL_LIST_ELEMENTS_RO(red_list
, node
, red
)) {
1802 bgp_redistribute_resend(bgp
, afi
, i
,
1809 /* Unset redistribute vrf bitmap during triggers like
1810 restart networking or delete VRFs */
1811 void bgp_unset_redist_vrf_bitmaps(struct bgp
*bgp
, vrf_id_t old_vrf_id
)
1816 for (afi
= AFI_IP
; afi
< AFI_MAX
; afi
++)
1817 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++)
1818 if (vrf_bitmap_check(zclient
->redist
[afi
][i
],
1820 vrf_bitmap_unset(zclient
->redist
[afi
][i
],
1825 void bgp_zclient_reset(void)
1827 zclient_reset(zclient
);
1830 /* Register this instance with Zebra. Invoked upon connect (for
1831 * default instance) and when other VRFs are learnt (or created and
1834 void bgp_zebra_instance_register(struct bgp
*bgp
)
1836 /* Don't try to register if we're not connected to Zebra */
1837 if (!zclient
|| zclient
->sock
< 0)
1840 if (BGP_DEBUG(zebra
, ZEBRA
))
1841 zlog_debug("Registering VRF %u", bgp
->vrf_id
);
1843 /* Register for router-id, interfaces, redistributed routes. */
1844 zclient_send_reg_requests(zclient
, bgp
->vrf_id
);
1846 /* For EVPN instance, register to learn about VNIs, if appropriate. */
1847 if (bgp
->advertise_all_vni
)
1848 bgp_zebra_advertise_all_vni(bgp
, 1);
1850 bgp_nht_register_nexthops(bgp
);
1853 /* Deregister this instance with Zebra. Invoked upon the instance
1854 * being deleted (default or VRF) and it is already registered.
1856 void bgp_zebra_instance_deregister(struct bgp
*bgp
)
1858 /* Don't try to deregister if we're not connected to Zebra */
1859 if (zclient
->sock
< 0)
1862 if (BGP_DEBUG(zebra
, ZEBRA
))
1863 zlog_debug("Deregistering VRF %u", bgp
->vrf_id
);
1865 /* For EVPN instance, unregister learning about VNIs, if appropriate. */
1866 if (bgp
->advertise_all_vni
)
1867 bgp_zebra_advertise_all_vni(bgp
, 0);
1869 /* Deregister for router-id, interfaces, redistributed routes. */
1870 zclient_send_dereg_requests(zclient
, bgp
->vrf_id
);
1873 void bgp_zebra_initiate_radv(struct bgp
*bgp
, struct peer
*peer
)
1875 int ra_interval
= BGP_UNNUM_DEFAULT_RA_INTERVAL
;
1877 /* Don't try to initiate if we're not connected to Zebra */
1878 if (zclient
->sock
< 0)
1881 if (BGP_DEBUG(zebra
, ZEBRA
))
1882 zlog_debug("%u: Initiating RA for peer %s", bgp
->vrf_id
,
1885 zclient_send_interface_radv_req(zclient
, bgp
->vrf_id
, peer
->ifp
, 1,
1889 void bgp_zebra_terminate_radv(struct bgp
*bgp
, struct peer
*peer
)
1891 /* Don't try to terminate if we're not connected to Zebra */
1892 if (zclient
->sock
< 0)
1895 if (BGP_DEBUG(zebra
, ZEBRA
))
1896 zlog_debug("%u: Terminating RA for peer %s", bgp
->vrf_id
,
1899 zclient_send_interface_radv_req(zclient
, bgp
->vrf_id
, peer
->ifp
, 0, 0);
1902 int bgp_zebra_advertise_subnet(struct bgp
*bgp
, int advertise
, vni_t vni
)
1904 struct stream
*s
= NULL
;
1907 if (!zclient
|| zclient
->sock
< 0)
1910 /* Don't try to register if Zebra doesn't know of this instance. */
1911 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
)) {
1912 if (BGP_DEBUG(zebra
, ZEBRA
))
1913 zlog_debug("%s: No zebra instance to talk to, cannot advertise subnet",
1914 __PRETTY_FUNCTION__
);
1921 zclient_create_header(s
, ZEBRA_ADVERTISE_SUBNET
, bgp
->vrf_id
);
1922 stream_putc(s
, advertise
);
1923 stream_put3(s
, vni
);
1924 stream_putw_at(s
, 0, stream_get_endp(s
));
1926 return zclient_send_message(zclient
);
1929 int bgp_zebra_advertise_svi_macip(struct bgp
*bgp
, int advertise
, vni_t vni
)
1931 struct stream
*s
= NULL
;
1934 if (!zclient
|| zclient
->sock
< 0)
1937 /* Don't try to register if Zebra doesn't know of this instance. */
1938 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
))
1944 zclient_create_header(s
, ZEBRA_ADVERTISE_SVI_MACIP
, bgp
->vrf_id
);
1945 stream_putc(s
, advertise
);
1946 stream_putl(s
, vni
);
1947 stream_putw_at(s
, 0, stream_get_endp(s
));
1949 return zclient_send_message(zclient
);
1952 int bgp_zebra_advertise_gw_macip(struct bgp
*bgp
, int advertise
, vni_t vni
)
1954 struct stream
*s
= NULL
;
1957 if (!zclient
|| zclient
->sock
< 0)
1960 /* Don't try to register if Zebra doesn't know of this instance. */
1961 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
)) {
1962 if (BGP_DEBUG(zebra
, ZEBRA
))
1963 zlog_debug("%s: No zebra instance to talk to, not installing gw_macip",
1964 __PRETTY_FUNCTION__
);
1971 zclient_create_header(s
, ZEBRA_ADVERTISE_DEFAULT_GW
, bgp
->vrf_id
);
1972 stream_putc(s
, advertise
);
1973 stream_putl(s
, vni
);
1974 stream_putw_at(s
, 0, stream_get_endp(s
));
1976 return zclient_send_message(zclient
);
1979 int bgp_zebra_vxlan_flood_control(struct bgp
*bgp
,
1980 enum vxlan_flood_control flood_ctrl
)
1985 if (!zclient
|| zclient
->sock
< 0)
1988 /* Don't try to register if Zebra doesn't know of this instance. */
1989 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
)) {
1990 if (BGP_DEBUG(zebra
, ZEBRA
))
1991 zlog_debug("%s: No zebra instance to talk to, not installing all vni",
1992 __PRETTY_FUNCTION__
);
1999 zclient_create_header(s
, ZEBRA_VXLAN_FLOOD_CONTROL
, bgp
->vrf_id
);
2000 stream_putc(s
, flood_ctrl
);
2001 stream_putw_at(s
, 0, stream_get_endp(s
));
2003 return zclient_send_message(zclient
);
2006 int bgp_zebra_advertise_all_vni(struct bgp
*bgp
, int advertise
)
2011 if (!zclient
|| zclient
->sock
< 0)
2014 /* Don't try to register if Zebra doesn't know of this instance. */
2015 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
))
2021 zclient_create_header(s
, ZEBRA_ADVERTISE_ALL_VNI
, bgp
->vrf_id
);
2022 stream_putc(s
, advertise
);
2023 /* Also inform current BUM handling setting. This is really
2024 * relevant only when 'advertise' is set.
2026 stream_putc(s
, bgp
->vxlan_flood_ctrl
);
2027 stream_putw_at(s
, 0, stream_get_endp(s
));
2029 return zclient_send_message(zclient
);
2032 int bgp_zebra_dup_addr_detection(struct bgp
*bgp
)
2037 if (!zclient
|| zclient
->sock
< 0)
2040 /* Don't try to register if Zebra doesn't know of this instance. */
2041 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp
))
2044 if (BGP_DEBUG(zebra
, ZEBRA
))
2045 zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u",
2046 bgp
->evpn_info
->dup_addr_detect
?
2047 "enable" : "disable",
2048 bgp
->evpn_info
->dad_max_moves
,
2049 bgp
->evpn_info
->dad_time
,
2050 bgp
->evpn_info
->dad_freeze
?
2051 "enable" : "disable",
2052 bgp
->evpn_info
->dad_freeze_time
);
2056 zclient_create_header(s
, ZEBRA_DUPLICATE_ADDR_DETECTION
,
2058 stream_putl(s
, bgp
->evpn_info
->dup_addr_detect
);
2059 stream_putl(s
, bgp
->evpn_info
->dad_time
);
2060 stream_putl(s
, bgp
->evpn_info
->dad_max_moves
);
2061 stream_putl(s
, bgp
->evpn_info
->dad_freeze
);
2062 stream_putl(s
, bgp
->evpn_info
->dad_freeze_time
);
2063 stream_putw_at(s
, 0, stream_get_endp(s
));
2065 return zclient_send_message(zclient
);
2068 static int rule_notify_owner(ZAPI_CALLBACK_ARGS
)
2070 uint32_t seqno
, priority
, unique
;
2071 enum zapi_rule_notify_owner note
;
2072 struct bgp_pbr_action
*bgp_pbra
;
2073 struct bgp_pbr_rule
*bgp_pbr
= NULL
;
2076 if (!zapi_rule_notify_decode(zclient
->ibuf
, &seqno
, &priority
, &unique
,
2080 bgp_pbra
= bgp_pbr_action_rule_lookup(vrf_id
, unique
);
2082 /* look in bgp pbr rule */
2083 bgp_pbr
= bgp_pbr_rule_lookup(vrf_id
, unique
);
2084 if (!bgp_pbr
&& note
!= ZAPI_RULE_REMOVED
) {
2085 if (BGP_DEBUG(zebra
, ZEBRA
))
2086 zlog_debug("%s: Fail to look BGP rule (%u)",
2087 __PRETTY_FUNCTION__
, unique
);
2093 case ZAPI_RULE_FAIL_INSTALL
:
2094 if (BGP_DEBUG(zebra
, ZEBRA
))
2095 zlog_debug("%s: Received RULE_FAIL_INSTALL",
2096 __PRETTY_FUNCTION__
);
2098 bgp_pbra
->installed
= false;
2099 bgp_pbra
->install_in_progress
= false;
2101 bgp_pbr
->installed
= false;
2102 bgp_pbr
->install_in_progress
= false;
2105 case ZAPI_RULE_INSTALLED
:
2107 bgp_pbra
->installed
= true;
2108 bgp_pbra
->install_in_progress
= false;
2110 struct bgp_path_info
*path
;
2111 struct bgp_path_info_extra
*extra
;
2113 bgp_pbr
->installed
= true;
2114 bgp_pbr
->install_in_progress
= false;
2115 bgp_pbr
->action
->refcnt
++;
2116 /* link bgp_info to bgp_pbr */
2117 path
= (struct bgp_path_info
*)bgp_pbr
->path
;
2118 extra
= bgp_path_info_extra_get(path
);
2119 listnode_add_force(&extra
->bgp_fs_iprule
,
2122 if (BGP_DEBUG(zebra
, ZEBRA
))
2123 zlog_debug("%s: Received RULE_INSTALLED",
2124 __PRETTY_FUNCTION__
);
2126 case ZAPI_RULE_FAIL_REMOVE
:
2127 case ZAPI_RULE_REMOVED
:
2128 if (BGP_DEBUG(zebra
, ZEBRA
))
2129 zlog_debug("%s: Received RULE REMOVED",
2130 __PRETTY_FUNCTION__
);
2137 static int ipset_notify_owner(ZAPI_CALLBACK_ARGS
)
2140 enum zapi_ipset_notify_owner note
;
2141 struct bgp_pbr_match
*bgp_pbim
;
2143 if (!zapi_ipset_notify_decode(zclient
->ibuf
,
2148 bgp_pbim
= bgp_pbr_match_ipset_lookup(vrf_id
, unique
);
2150 if (BGP_DEBUG(zebra
, ZEBRA
))
2151 zlog_debug("%s: Fail to look BGP match ( %u, ID %u)",
2152 __PRETTY_FUNCTION__
, note
, unique
);
2157 case ZAPI_IPSET_FAIL_INSTALL
:
2158 if (BGP_DEBUG(zebra
, ZEBRA
))
2159 zlog_debug("%s: Received IPSET_FAIL_INSTALL",
2160 __PRETTY_FUNCTION__
);
2161 bgp_pbim
->installed
= false;
2162 bgp_pbim
->install_in_progress
= false;
2164 case ZAPI_IPSET_INSTALLED
:
2165 bgp_pbim
->installed
= true;
2166 bgp_pbim
->install_in_progress
= false;
2167 if (BGP_DEBUG(zebra
, ZEBRA
))
2168 zlog_debug("%s: Received IPSET_INSTALLED",
2169 __PRETTY_FUNCTION__
);
2171 case ZAPI_IPSET_FAIL_REMOVE
:
2172 case ZAPI_IPSET_REMOVED
:
2173 if (BGP_DEBUG(zebra
, ZEBRA
))
2174 zlog_debug("%s: Received IPSET REMOVED",
2175 __PRETTY_FUNCTION__
);
2182 static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS
)
2185 char ipset_name
[ZEBRA_IPSET_NAME_SIZE
];
2186 enum zapi_ipset_entry_notify_owner note
;
2187 struct bgp_pbr_match_entry
*bgp_pbime
;
2189 if (!zapi_ipset_entry_notify_decode(
2195 bgp_pbime
= bgp_pbr_match_ipset_entry_lookup(vrf_id
,
2199 if (BGP_DEBUG(zebra
, ZEBRA
))
2200 zlog_debug("%s: Fail to look BGP match entry (%u, ID %u)",
2201 __PRETTY_FUNCTION__
, note
, unique
);
2206 case ZAPI_IPSET_ENTRY_FAIL_INSTALL
:
2207 if (BGP_DEBUG(zebra
, ZEBRA
))
2208 zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL",
2209 __PRETTY_FUNCTION__
);
2210 bgp_pbime
->installed
= false;
2211 bgp_pbime
->install_in_progress
= false;
2213 case ZAPI_IPSET_ENTRY_INSTALLED
:
2215 struct bgp_path_info
*path
;
2216 struct bgp_path_info_extra
*extra
;
2218 bgp_pbime
->installed
= true;
2219 bgp_pbime
->install_in_progress
= false;
2220 if (BGP_DEBUG(zebra
, ZEBRA
))
2221 zlog_debug("%s: Received IPSET_ENTRY_INSTALLED",
2222 __PRETTY_FUNCTION__
);
2223 /* link bgp_path_info to bpme */
2224 path
= (struct bgp_path_info
*)bgp_pbime
->path
;
2225 extra
= bgp_path_info_extra_get(path
);
2226 listnode_add_force(&extra
->bgp_fs_pbr
, bgp_pbime
);
2229 case ZAPI_IPSET_ENTRY_FAIL_REMOVE
:
2230 case ZAPI_IPSET_ENTRY_REMOVED
:
2231 if (BGP_DEBUG(zebra
, ZEBRA
))
2232 zlog_debug("%s: Received IPSET_ENTRY_REMOVED",
2233 __PRETTY_FUNCTION__
);
2239 static int iptable_notify_owner(ZAPI_CALLBACK_ARGS
)
2242 enum zapi_iptable_notify_owner note
;
2243 struct bgp_pbr_match
*bgpm
;
2245 if (!zapi_iptable_notify_decode(
2250 bgpm
= bgp_pbr_match_iptable_lookup(vrf_id
, unique
);
2252 if (BGP_DEBUG(zebra
, ZEBRA
))
2253 zlog_debug("%s: Fail to look BGP iptable (%u %u)",
2254 __PRETTY_FUNCTION__
, note
, unique
);
2258 case ZAPI_IPTABLE_FAIL_INSTALL
:
2259 if (BGP_DEBUG(zebra
, ZEBRA
))
2260 zlog_debug("%s: Received IPTABLE_FAIL_INSTALL",
2261 __PRETTY_FUNCTION__
);
2262 bgpm
->installed_in_iptable
= false;
2263 bgpm
->install_iptable_in_progress
= false;
2265 case ZAPI_IPTABLE_INSTALLED
:
2266 bgpm
->installed_in_iptable
= true;
2267 bgpm
->install_iptable_in_progress
= false;
2268 if (BGP_DEBUG(zebra
, ZEBRA
))
2269 zlog_debug("%s: Received IPTABLE_INSTALLED",
2270 __PRETTY_FUNCTION__
);
2271 bgpm
->action
->refcnt
++;
2273 case ZAPI_IPTABLE_FAIL_REMOVE
:
2274 case ZAPI_IPTABLE_REMOVED
:
2275 if (BGP_DEBUG(zebra
, ZEBRA
))
2276 zlog_debug("%s: Received IPTABLE REMOVED",
2277 __PRETTY_FUNCTION__
);
2283 /* this function is used to forge ip rule,
2284 * - either for iptable/ipset using fwmark id
2285 * - or for sample ip rule cmd
2287 static void bgp_encode_pbr_rule_action(struct stream
*s
,
2288 struct bgp_pbr_action
*pbra
,
2289 struct bgp_pbr_rule
*pbr
)
2293 stream_putl(s
, 0); /* seqno unused */
2295 stream_putl(s
, pbr
->priority
);
2298 /* ruleno unused - priority change
2299 * ruleno permits distinguishing various FS PBR entries
2300 * - FS PBR entries based on ipset/iptables
2301 * - FS PBR entries based on iprule
2302 * the latter may contain default routing information injected by FS
2305 stream_putl(s
, pbr
->unique
);
2307 stream_putl(s
, pbra
->unique
);
2308 if (pbr
&& pbr
->flags
& MATCH_IP_SRC_SET
)
2309 memcpy(&pfx
, &(pbr
->src
), sizeof(struct prefix
));
2311 memset(&pfx
, 0, sizeof(pfx
));
2312 pfx
.family
= AF_INET
;
2314 stream_putc(s
, pfx
.family
);
2315 stream_putc(s
, pfx
.prefixlen
);
2316 stream_put(s
, &pfx
.u
.prefix
, prefix_blen(&pfx
));
2318 stream_putw(s
, 0); /* src port */
2320 if (pbr
&& pbr
->flags
& MATCH_IP_DST_SET
)
2321 memcpy(&pfx
, &(pbr
->dst
), sizeof(struct prefix
));
2323 memset(&pfx
, 0, sizeof(pfx
));
2324 pfx
.family
= AF_INET
;
2326 stream_putc(s
, pfx
.family
);
2327 stream_putc(s
, pfx
.prefixlen
);
2328 stream_put(s
, &pfx
.u
.prefix
, prefix_blen(&pfx
));
2330 stream_putw(s
, 0); /* dst port */
2332 /* if pbr present, fwmark is not used */
2336 stream_putl(s
, pbra
->fwmark
); /* fwmark */
2338 stream_putl(s
, pbra
->table_id
);
2340 stream_putl(s
, 0); /* ifindex unused */
2343 static void bgp_encode_pbr_ipset_match(struct stream
*s
,
2344 struct bgp_pbr_match
*pbim
)
2346 stream_putl(s
, pbim
->unique
);
2347 stream_putl(s
, pbim
->type
);
2349 stream_put(s
, pbim
->ipset_name
,
2350 ZEBRA_IPSET_NAME_SIZE
);
2353 static void bgp_encode_pbr_ipset_entry_match(struct stream
*s
,
2354 struct bgp_pbr_match_entry
*pbime
)
2356 stream_putl(s
, pbime
->unique
);
2357 /* check that back pointer is not null */
2358 stream_put(s
, pbime
->backpointer
->ipset_name
,
2359 ZEBRA_IPSET_NAME_SIZE
);
2361 stream_putc(s
, pbime
->src
.family
);
2362 stream_putc(s
, pbime
->src
.prefixlen
);
2363 stream_put(s
, &pbime
->src
.u
.prefix
, prefix_blen(&pbime
->src
));
2365 stream_putc(s
, pbime
->dst
.family
);
2366 stream_putc(s
, pbime
->dst
.prefixlen
);
2367 stream_put(s
, &pbime
->dst
.u
.prefix
, prefix_blen(&pbime
->dst
));
2369 stream_putw(s
, pbime
->src_port_min
);
2370 stream_putw(s
, pbime
->src_port_max
);
2371 stream_putw(s
, pbime
->dst_port_min
);
2372 stream_putw(s
, pbime
->dst_port_max
);
2373 stream_putc(s
, pbime
->proto
);
2376 static void bgp_encode_pbr_iptable_match(struct stream
*s
,
2377 struct bgp_pbr_action
*bpa
,
2378 struct bgp_pbr_match
*pbm
)
2380 stream_putl(s
, pbm
->unique2
);
2382 stream_putl(s
, pbm
->type
);
2384 stream_putl(s
, pbm
->flags
);
2386 /* TODO: correlate with what is contained
2387 * into bgp_pbr_action.
2388 * currently only forward supported
2390 if (bpa
->nh
.type
== NEXTHOP_TYPE_BLACKHOLE
)
2391 stream_putl(s
, ZEBRA_IPTABLES_DROP
);
2393 stream_putl(s
, ZEBRA_IPTABLES_FORWARD
);
2394 stream_putl(s
, bpa
->fwmark
);
2395 stream_put(s
, pbm
->ipset_name
,
2396 ZEBRA_IPSET_NAME_SIZE
);
2397 stream_putw(s
, pbm
->pkt_len_min
);
2398 stream_putw(s
, pbm
->pkt_len_max
);
2399 stream_putw(s
, pbm
->tcp_flags
);
2400 stream_putw(s
, pbm
->tcp_mask_flags
);
2401 stream_putc(s
, pbm
->dscp_value
);
2402 stream_putc(s
, pbm
->fragment
);
2403 stream_putc(s
, pbm
->protocol
);
2406 /* BGP has established connection with Zebra. */
2407 static void bgp_zebra_connected(struct zclient
*zclient
)
2411 zclient_num_connects
++; /* increment even if not responding */
2413 /* At this point, we may or may not have BGP instances configured, but
2414 * we're only interested in the default VRF (others wouldn't have learnt
2415 * the VRF from Zebra yet.)
2417 bgp
= bgp_get_default();
2421 bgp_zebra_instance_register(bgp
);
2423 /* Send the client registration */
2424 bfd_client_sendmsg(zclient
, ZEBRA_BFD_CLIENT_REGISTER
, bgp
->vrf_id
);
2426 /* tell label pool that zebra is connected */
2427 bgp_lp_event_zebra_up();
2429 /* TODO - What if we have peers and networks configured, do we have to
2434 static int bgp_zebra_process_local_es(ZAPI_CALLBACK_ARGS
)
2437 struct bgp
*bgp
= NULL
;
2438 struct stream
*s
= NULL
;
2439 char buf
[ESI_STR_LEN
];
2440 char buf1
[INET6_ADDRSTRLEN
];
2441 struct ipaddr originator_ip
;
2443 memset(&esi
, 0, sizeof(esi_t
));
2444 memset(&originator_ip
, 0, sizeof(struct ipaddr
));
2446 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
2451 stream_get(&esi
, s
, sizeof(esi_t
));
2452 stream_get(&originator_ip
, s
, sizeof(struct ipaddr
));
2454 if (BGP_DEBUG(zebra
, ZEBRA
))
2455 zlog_debug("Rx %s ESI %s originator-ip %s",
2456 (cmd
== ZEBRA_LOCAL_ES_ADD
) ? "add" : "del",
2457 esi_to_str(&esi
, buf
, sizeof(buf
)),
2458 ipaddr2str(&originator_ip
, buf1
, sizeof(buf1
)));
2460 if (cmd
== ZEBRA_LOCAL_ES_ADD
)
2461 bgp_evpn_local_es_add(bgp
, &esi
, &originator_ip
);
2463 bgp_evpn_local_es_del(bgp
, &esi
, &originator_ip
);
2467 static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS
)
2470 char buf
[ETHER_ADDR_STRLEN
];
2472 struct ethaddr rmac
;
2473 struct in_addr originator_ip
;
2475 ifindex_t svi_ifindex
;
2477 memset(&rmac
, 0, sizeof(struct ethaddr
));
2478 memset(&originator_ip
, 0, sizeof(struct in_addr
));
2480 l3vni
= stream_getl(s
);
2481 if (cmd
== ZEBRA_L3VNI_ADD
) {
2482 stream_get(&rmac
, s
, sizeof(struct ethaddr
));
2483 originator_ip
.s_addr
= stream_get_ipv4(s
);
2484 stream_get(&filter
, s
, sizeof(int));
2485 svi_ifindex
= stream_getl(s
);
2487 if (BGP_DEBUG(zebra
, ZEBRA
))
2488 zlog_debug("Rx L3-VNI ADD VRF %s VNI %u RMAC %s filter %s svi-if %u",
2489 vrf_id_to_name(vrf_id
), l3vni
,
2490 prefix_mac2str(&rmac
, buf
, sizeof(buf
)),
2491 filter
? "prefix-routes-only" : "none",
2494 bgp_evpn_local_l3vni_add(l3vni
, vrf_id
, &rmac
, originator_ip
,
2495 filter
, svi_ifindex
);
2497 if (BGP_DEBUG(zebra
, ZEBRA
))
2498 zlog_debug("Rx L3-VNI DEL VRF %s VNI %u",
2499 vrf_id_to_name(vrf_id
), l3vni
);
2501 bgp_evpn_local_l3vni_del(l3vni
, vrf_id
);
2507 static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS
)
2512 struct in_addr vtep_ip
= {INADDR_ANY
};
2513 vrf_id_t tenant_vrf_id
= VRF_DEFAULT
;
2514 struct in_addr mcast_grp
= {INADDR_ANY
};
2517 vni
= stream_getl(s
);
2518 if (cmd
== ZEBRA_VNI_ADD
) {
2519 vtep_ip
.s_addr
= stream_get_ipv4(s
);
2520 stream_get(&tenant_vrf_id
, s
, sizeof(vrf_id_t
));
2521 mcast_grp
.s_addr
= stream_get_ipv4(s
);
2524 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
2528 if (BGP_DEBUG(zebra
, ZEBRA
))
2529 zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s",
2530 (cmd
== ZEBRA_VNI_ADD
) ? "add" : "del",
2531 vrf_id_to_name(vrf_id
), vni
,
2532 vrf_id_to_name(tenant_vrf_id
));
2534 if (cmd
== ZEBRA_VNI_ADD
)
2535 return bgp_evpn_local_vni_add(
2536 bgp
, vni
, vtep_ip
.s_addr
? vtep_ip
: bgp
->router_id
,
2537 tenant_vrf_id
, mcast_grp
);
2539 return bgp_evpn_local_vni_del(bgp
, vni
);
2542 static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS
)
2550 char buf
[ETHER_ADDR_STRLEN
];
2551 char buf1
[INET6_ADDRSTRLEN
];
2553 uint32_t seqnum
= 0;
2556 memset(&ip
, 0, sizeof(ip
));
2558 vni
= stream_getl(s
);
2559 stream_get(&mac
.octet
, s
, ETH_ALEN
);
2560 ipa_len
= stream_getl(s
);
2561 if (ipa_len
!= 0 && ipa_len
!= IPV4_MAX_BYTELEN
2562 && ipa_len
!= IPV6_MAX_BYTELEN
) {
2563 flog_err(EC_BGP_MACIP_LEN
,
2564 "%u:Recv MACIP %s with invalid IP addr length %d",
2565 vrf_id
, (cmd
== ZEBRA_MACIP_ADD
) ? "Add" : "Del",
2572 (ipa_len
== IPV4_MAX_BYTELEN
) ? IPADDR_V4
: IPADDR_V6
;
2573 stream_get(&ip
.ip
.addr
, s
, ipa_len
);
2575 if (cmd
== ZEBRA_MACIP_ADD
) {
2576 flags
= stream_getc(s
);
2577 seqnum
= stream_getl(s
);
2579 state
= stream_getl(s
);
2582 bgp
= bgp_lookup_by_vrf_id(vrf_id
);
2586 if (BGP_DEBUG(zebra
, ZEBRA
))
2587 zlog_debug("%u:Recv MACIP %s flags 0x%x MAC %s IP %s VNI %u seq %u state %d",
2588 vrf_id
, (cmd
== ZEBRA_MACIP_ADD
) ? "Add" : "Del",
2589 flags
, prefix_mac2str(&mac
, buf
, sizeof(buf
)),
2590 ipaddr2str(&ip
, buf1
, sizeof(buf1
)), vni
, seqnum
,
2593 if (cmd
== ZEBRA_MACIP_ADD
)
2594 return bgp_evpn_local_macip_add(bgp
, vni
, &mac
, &ip
,
2597 return bgp_evpn_local_macip_del(bgp
, vni
, &mac
, &ip
, state
);
2600 static void bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS
)
2602 struct stream
*s
= NULL
;
2603 struct bgp
*bgp_vrf
= NULL
;
2605 char buf
[PREFIX_STRLEN
];
2607 memset(&p
, 0, sizeof(struct prefix
));
2609 stream_get(&p
, s
, sizeof(struct prefix
));
2611 bgp_vrf
= bgp_lookup_by_vrf_id(vrf_id
);
2615 if (BGP_DEBUG(zebra
, ZEBRA
))
2616 zlog_debug("Recv prefix %s %s on vrf %s",
2617 prefix2str(&p
, buf
, sizeof(buf
)),
2618 (cmd
== ZEBRA_IP_PREFIX_ROUTE_ADD
) ? "ADD" : "DEL",
2619 vrf_id_to_name(vrf_id
));
2621 if (cmd
== ZEBRA_IP_PREFIX_ROUTE_ADD
) {
2623 if (p
.family
== AF_INET
)
2624 bgp_evpn_advertise_type5_route(bgp_vrf
, &p
, NULL
,
2625 AFI_IP
, SAFI_UNICAST
);
2627 bgp_evpn_advertise_type5_route(bgp_vrf
, &p
, NULL
,
2628 AFI_IP6
, SAFI_UNICAST
);
2631 if (p
.family
== AF_INET
)
2632 bgp_evpn_withdraw_type5_route(bgp_vrf
, &p
, AFI_IP
,
2635 bgp_evpn_withdraw_type5_route(bgp_vrf
, &p
, AFI_IP6
,
2640 static void bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS
)
2642 struct stream
*s
= NULL
;
2643 uint8_t response_keep
;
2647 unsigned short instance
;
2650 STREAM_GETC(s
, proto
);
2651 STREAM_GETW(s
, instance
);
2652 STREAM_GETC(s
, response_keep
);
2653 STREAM_GETL(s
, first
);
2654 STREAM_GETL(s
, last
);
2656 if (zclient
->redist_default
!= proto
) {
2657 flog_err(EC_BGP_LM_ERROR
, "Got LM msg with wrong proto %u",
2661 if (zclient
->instance
!= instance
) {
2662 flog_err(EC_BGP_LM_ERROR
, "Got LM msg with wrong instance %u",
2668 first
< MPLS_LABEL_UNRESERVED_MIN
||
2669 last
> MPLS_LABEL_UNRESERVED_MAX
) {
2671 flog_err(EC_BGP_LM_ERROR
, "%s: Invalid Label chunk: %u - %u",
2672 __func__
, first
, last
);
2675 if (BGP_DEBUG(zebra
, ZEBRA
)) {
2676 zlog_debug("Label Chunk assign: %u - %u (%u) ",
2677 first
, last
, response_keep
);
2680 bgp_lp_event_chunk(response_keep
, first
, last
);
2682 stream_failure
: /* for STREAM_GETX */
2686 extern struct zebra_privs_t bgpd_privs
;
2688 static int bgp_ifp_create(struct interface
*ifp
)
2692 if (BGP_DEBUG(zebra
, ZEBRA
))
2693 zlog_debug("Rx Intf add VRF %u IF %s", ifp
->vrf_id
, ifp
->name
);
2695 bgp
= bgp_lookup_by_vrf_id(ifp
->vrf_id
);
2699 bgp_mac_add_mac_entry(ifp
);
2701 bgp_update_interface_nbrs(bgp
, ifp
, ifp
);
2705 void bgp_zebra_init(struct thread_master
*master
, unsigned short instance
)
2707 zclient_num_connects
= 0;
2709 if_zapi_callbacks(bgp_ifp_create
, bgp_ifp_up
,
2710 bgp_ifp_down
, bgp_ifp_destroy
);
2712 /* Set default values. */
2713 zclient
= zclient_new(master
, &zclient_options_default
);
2714 zclient_init(zclient
, ZEBRA_ROUTE_BGP
, 0, &bgpd_privs
);
2715 zclient
->zebra_connected
= bgp_zebra_connected
;
2716 zclient
->router_id_update
= bgp_router_id_update
;
2717 zclient
->interface_address_add
= bgp_interface_address_add
;
2718 zclient
->interface_address_delete
= bgp_interface_address_delete
;
2719 zclient
->interface_nbr_address_add
= bgp_interface_nbr_address_add
;
2720 zclient
->interface_nbr_address_delete
=
2721 bgp_interface_nbr_address_delete
;
2722 zclient
->interface_vrf_update
= bgp_interface_vrf_update
;
2723 zclient
->redistribute_route_add
= zebra_read_route
;
2724 zclient
->redistribute_route_del
= zebra_read_route
;
2725 zclient
->nexthop_update
= bgp_read_nexthop_update
;
2726 zclient
->import_check_update
= bgp_read_import_check_update
;
2727 zclient
->fec_update
= bgp_read_fec_update
;
2728 zclient
->local_es_add
= bgp_zebra_process_local_es
;
2729 zclient
->local_es_del
= bgp_zebra_process_local_es
;
2730 zclient
->local_vni_add
= bgp_zebra_process_local_vni
;
2731 zclient
->local_vni_del
= bgp_zebra_process_local_vni
;
2732 zclient
->local_macip_add
= bgp_zebra_process_local_macip
;
2733 zclient
->local_macip_del
= bgp_zebra_process_local_macip
;
2734 zclient
->local_l3vni_add
= bgp_zebra_process_local_l3vni
;
2735 zclient
->local_l3vni_del
= bgp_zebra_process_local_l3vni
;
2736 zclient
->local_ip_prefix_add
= bgp_zebra_process_local_ip_prefix
;
2737 zclient
->local_ip_prefix_del
= bgp_zebra_process_local_ip_prefix
;
2738 zclient
->label_chunk
= bgp_zebra_process_label_chunk
;
2739 zclient
->rule_notify_owner
= rule_notify_owner
;
2740 zclient
->ipset_notify_owner
= ipset_notify_owner
;
2741 zclient
->ipset_entry_notify_owner
= ipset_entry_notify_owner
;
2742 zclient
->iptable_notify_owner
= iptable_notify_owner
;
2743 zclient
->instance
= instance
;
2746 void bgp_zebra_destroy(void)
2748 if (zclient
== NULL
)
2750 zclient_stop(zclient
);
2751 zclient_free(zclient
);
2755 int bgp_zebra_num_connects(void)
2757 return zclient_num_connects
;
2760 void bgp_send_pbr_rule_action(struct bgp_pbr_action
*pbra
,
2761 struct bgp_pbr_rule
*pbr
,
2766 if (pbra
->install_in_progress
&& !pbr
)
2768 if (pbr
&& pbr
->install_in_progress
)
2770 if (BGP_DEBUG(zebra
, ZEBRA
)) {
2772 zlog_debug("%s: table %d (ip rule) %d",
2773 __PRETTY_FUNCTION__
,
2774 pbra
->table_id
, install
);
2776 zlog_debug("%s: table %d fwmark %d %d",
2777 __PRETTY_FUNCTION__
,
2778 pbra
->table_id
, pbra
->fwmark
, install
);
2783 zclient_create_header(s
,
2784 install
? ZEBRA_RULE_ADD
: ZEBRA_RULE_DELETE
,
2786 stream_putl(s
, 1); /* send one pbr action */
2788 bgp_encode_pbr_rule_action(s
, pbra
, pbr
);
2790 stream_putw_at(s
, 0, stream_get_endp(s
));
2791 if (!zclient_send_message(zclient
) && install
) {
2793 pbra
->install_in_progress
= true;
2795 pbr
->install_in_progress
= true;
2799 void bgp_send_pbr_ipset_match(struct bgp_pbr_match
*pbrim
, bool install
)
2803 if (pbrim
->install_in_progress
)
2805 if (BGP_DEBUG(zebra
, ZEBRA
))
2806 zlog_debug("%s: name %s type %d %d, ID %u",
2807 __PRETTY_FUNCTION__
,
2808 pbrim
->ipset_name
, pbrim
->type
,
2809 install
, pbrim
->unique
);
2813 zclient_create_header(s
,
2814 install
? ZEBRA_IPSET_CREATE
:
2815 ZEBRA_IPSET_DESTROY
,
2818 stream_putl(s
, 1); /* send one pbr action */
2820 bgp_encode_pbr_ipset_match(s
, pbrim
);
2822 stream_putw_at(s
, 0, stream_get_endp(s
));
2823 if (!zclient_send_message(zclient
) && install
)
2824 pbrim
->install_in_progress
= true;
2827 void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry
*pbrime
,
2832 if (pbrime
->install_in_progress
)
2834 if (BGP_DEBUG(zebra
, ZEBRA
))
2835 zlog_debug("%s: name %s %d %d, ID %u", __PRETTY_FUNCTION__
,
2836 pbrime
->backpointer
->ipset_name
,
2837 pbrime
->unique
, install
, pbrime
->unique
);
2841 zclient_create_header(s
,
2842 install
? ZEBRA_IPSET_ENTRY_ADD
:
2843 ZEBRA_IPSET_ENTRY_DELETE
,
2846 stream_putl(s
, 1); /* send one pbr action */
2848 bgp_encode_pbr_ipset_entry_match(s
, pbrime
);
2850 stream_putw_at(s
, 0, stream_get_endp(s
));
2851 if (!zclient_send_message(zclient
) && install
)
2852 pbrime
->install_in_progress
= true;
2855 static void bgp_encode_pbr_interface_list(struct bgp
*bgp
, struct stream
*s
)
2857 struct bgp_pbr_config
*bgp_pbr_cfg
= bgp
->bgp_pbr_cfg
;
2858 struct bgp_pbr_interface_head
*head
;
2859 struct bgp_pbr_interface
*pbr_if
;
2860 struct interface
*ifp
;
2864 head
= &(bgp_pbr_cfg
->ifaces_by_name_ipv4
);
2866 RB_FOREACH (pbr_if
, bgp_pbr_interface_head
, head
) {
2867 ifp
= if_lookup_by_name(pbr_if
->name
, bgp
->vrf_id
);
2869 stream_putl(s
, ifp
->ifindex
);
2873 static int bgp_pbr_get_ifnumber(struct bgp
*bgp
)
2875 struct bgp_pbr_config
*bgp_pbr_cfg
= bgp
->bgp_pbr_cfg
;
2876 struct bgp_pbr_interface_head
*head
;
2877 struct bgp_pbr_interface
*pbr_if
;
2882 head
= &(bgp_pbr_cfg
->ifaces_by_name_ipv4
);
2884 RB_FOREACH (pbr_if
, bgp_pbr_interface_head
, head
) {
2885 if (if_lookup_by_name(pbr_if
->name
, bgp
->vrf_id
))
2891 void bgp_send_pbr_iptable(struct bgp_pbr_action
*pba
,
2892 struct bgp_pbr_match
*pbm
,
2899 if (pbm
->install_iptable_in_progress
)
2901 if (BGP_DEBUG(zebra
, ZEBRA
))
2902 zlog_debug("%s: name %s type %d mark %d %d, ID %u",
2903 __PRETTY_FUNCTION__
, pbm
->ipset_name
,
2904 pbm
->type
, pba
->fwmark
, install
,
2909 zclient_create_header(s
,
2910 install
? ZEBRA_IPTABLE_ADD
:
2911 ZEBRA_IPTABLE_DELETE
,
2914 bgp_encode_pbr_iptable_match(s
, pba
, pbm
);
2915 nb_interface
= bgp_pbr_get_ifnumber(pba
->bgp
);
2916 stream_putl(s
, nb_interface
);
2918 bgp_encode_pbr_interface_list(pba
->bgp
, s
);
2919 stream_putw_at(s
, 0, stream_get_endp(s
));
2920 ret
= zclient_send_message(zclient
);
2925 pbm
->install_iptable_in_progress
= true;
2929 /* inject in table <table_id> a default route to:
2930 * - if nexthop IP is present : to this nexthop
2931 * - if vrf is different from local : to the matching VRF
2933 void bgp_zebra_announce_default(struct bgp
*bgp
, struct nexthop
*nh
,
2934 afi_t afi
, uint32_t table_id
, bool announce
)
2936 struct zapi_nexthop
*api_nh
;
2937 struct zapi_route api
;
2940 if (!nh
|| nh
->type
!= NEXTHOP_TYPE_IPV4
2941 || nh
->vrf_id
== VRF_UNKNOWN
)
2943 memset(&p
, 0, sizeof(struct prefix
));
2948 memset(&api
, 0, sizeof(api
));
2949 api
.vrf_id
= bgp
->vrf_id
;
2950 api
.type
= ZEBRA_ROUTE_BGP
;
2951 api
.safi
= SAFI_UNICAST
;
2953 api
.tableid
= table_id
;
2954 api
.nexthop_num
= 1;
2955 SET_FLAG(api
.message
, ZAPI_MESSAGE_TABLEID
);
2956 SET_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
);
2957 api_nh
= &api
.nexthops
[0];
2959 api
.distance
= ZEBRA_EBGP_DISTANCE_DEFAULT
;
2960 SET_FLAG(api
.message
, ZAPI_MESSAGE_DISTANCE
);
2963 if (nh
->gate
.ipv4
.s_addr
) {
2964 char buff
[PREFIX_STRLEN
];
2966 api_nh
->vrf_id
= nh
->vrf_id
;
2967 api_nh
->gate
.ipv4
= nh
->gate
.ipv4
;
2968 api_nh
->type
= NEXTHOP_TYPE_IPV4
;
2970 inet_ntop(AF_INET
, &(nh
->gate
.ipv4
), buff
, INET_ADDRSTRLEN
);
2971 if (BGP_DEBUG(zebra
, ZEBRA
))
2972 zlog_info("BGP: %s default route to %s table %d (redirect IP)",
2973 announce
? "adding" : "withdrawing",
2975 zclient_route_send(announce
? ZEBRA_ROUTE_ADD
2976 : ZEBRA_ROUTE_DELETE
,
2978 } else if (nh
->vrf_id
!= bgp
->vrf_id
) {
2980 struct interface
*ifp
;
2982 vrf
= vrf_lookup_by_id(nh
->vrf_id
);
2985 /* create default route with interface <VRF>
2986 * with nexthop-vrf <VRF>
2988 ifp
= if_lookup_by_name_all_vrf(vrf
->name
);
2991 api_nh
->vrf_id
= nh
->vrf_id
;
2992 api_nh
->type
= NEXTHOP_TYPE_IFINDEX
;
2993 api_nh
->ifindex
= ifp
->ifindex
;
2994 if (BGP_DEBUG(zebra
, ZEBRA
))
2995 zlog_info("BGP: %s default route to %s table %d (redirect VRF)",
2996 announce
? "adding" : "withdrawing",
2997 vrf
->name
, table_id
);
2998 zclient_route_send(announce
? ZEBRA_ROUTE_ADD
2999 : ZEBRA_ROUTE_DELETE
,