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bgpd: Allow bfd to work if peer known but interface address not yet

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If bgp is coming up and bgp has not received the interface address yet
but bgp has knowledge about a bfd peering, allow it to set the peering
data appropriately.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
This commit is contained in:
Donald Sharp 2024-11-20 16:07:34 -05:00
parent 6a945b4104
commit c1c6298dd3
2 changed files with 22 additions and 12 deletions
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6
bgpd/bgp_bfd.c
View File

@ -151,7 +151,7 @@ void bgp_peer_config_apply(struct peer *p, struct peer_group *pg)
void bgp_peer_bfd_update_source(struct peer *p)
{
struct bfd_session_params *session = p->bfd_config->session;
struct bfd_session_params *session;
const union sockunion *source = NULL;
bool changed = false;
int family;
@ -162,6 +162,10 @@ void bgp_peer_bfd_update_source(struct peer *p)
struct interface *ifp;
union sockunion addr;
if (!p->bfd_config)
return;
session = p->bfd_config->session;
/* Nothing to do for groups. */
if (CHECK_FLAG(p->sflags, PEER_STATUS_GROUP))
return;

28
bgpd/bgp_nexthop.c
View File

@ -32,6 +32,7 @@
#include "bgpd/bgp_vty.h"
#include "bgpd/bgp_rd.h"
#include "bgpd/bgp_mplsvpn.h"
#include "bgpd/bgp_bfd.h"
DEFINE_MTYPE_STATIC(BGPD, MARTIAN_STRING, "BGP Martian Addr Intf String");
@ -409,17 +410,6 @@ void bgp_connected_add(struct bgp *bgp, struct connected *ifc)
bgp_dest_set_bgp_connected_ref_info(dest, bc);
}
for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
if (peer->conf_if &&
(strcmp(peer->conf_if, ifc->ifp->name) == 0) &&
!peer_established(peer->connection) &&
!CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) {
connection = peer->connection;
if (peer_active(peer))
BGP_EVENT_ADD(connection, BGP_Stop);
BGP_EVENT_ADD(connection, BGP_Start);
}
}
} else if (addr->family == AF_INET6) {
apply_mask_ipv6((struct prefix_ipv6 *)&p);
@ -443,6 +433,22 @@ void bgp_connected_add(struct bgp *bgp, struct connected *ifc)
bgp_dest_set_bgp_connected_ref_info(dest, bc);
}
}
/*
* Iterate over all the peers and attempt to set the bfd session
* data and if it's a bgp unnumbered get her flowing if necessary
*/
for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
bgp_peer_bfd_update_source(peer);
if (peer->conf_if && (strcmp(peer->conf_if, ifc->ifp->name) == 0) &&
!peer_established(peer->connection) &&
!CHECK_FLAG(peer->flags, PEER_FLAG_IFPEER_V6ONLY)) {
connection = peer->connection;
if (peer_active(peer))
BGP_EVENT_ADD(connection, BGP_Stop);
BGP_EVENT_ADD(connection, BGP_Start);
}
}
}
void bgp_connected_delete(struct bgp *bgp, struct connected *ifc)