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Merge pull request #7867 from dewi-morgan/bgp-max-prefix-overflow-clear

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bgpd: clear max prefix overflow on de-config
This commit is contained in:
Donatas Abraitis 2021-01-15 09:30:56 +02:00 committed by GitHub
commit a3dd2d8d9f
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 21 additions and 11 deletions
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32
bgpd/bgpd.c
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@ -6974,6 +6974,22 @@ int peer_advertise_map_unset(struct peer *peer, afi_t afi, safi_t safi,
return 0;
}
static bool peer_maximum_prefix_clear_overflow(struct peer *peer)
{
if (!CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW))
return false;
UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW);
if (peer->t_pmax_restart) {
BGP_TIMER_OFF(peer->t_pmax_restart);
if (bgp_debug_neighbor_events(peer))
zlog_debug("%s Maximum-prefix restart timer cancelled",
peer->host);
}
BGP_EVENT_ADD(peer, BGP_Start);
return true;
}
int peer_maximum_prefix_set(struct peer *peer, afi_t afi, safi_t safi,
uint32_t max, uint8_t threshold, int warning,
uint16_t restart, bool force)
@ -7095,7 +7111,11 @@ int peer_maximum_prefix_unset(struct peer *peer, afi_t afi, safi_t safi)
member->pmax[afi][safi] = 0;
member->pmax_threshold[afi][safi] = 0;
member->pmax_restart[afi][safi] = 0;
peer_maximum_prefix_clear_overflow(member);
}
} else {
peer_maximum_prefix_clear_overflow(peer);
}
return 0;
@ -7298,18 +7318,8 @@ int peer_clear(struct peer *peer, struct listnode **nnode)
{
if (!CHECK_FLAG(peer->flags, PEER_FLAG_SHUTDOWN)
|| !CHECK_FLAG(peer->bgp->flags, BGP_FLAG_SHUTDOWN)) {
if (CHECK_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW)) {
UNSET_FLAG(peer->sflags, PEER_STATUS_PREFIX_OVERFLOW);
if (peer->t_pmax_restart) {
BGP_TIMER_OFF(peer->t_pmax_restart);
if (bgp_debug_neighbor_events(peer))
zlog_debug(
"%s Maximum-prefix restart timer canceled",
peer->host);
}
BGP_EVENT_ADD(peer, BGP_Start);
if (peer_maximum_prefix_clear_overflow(peer))
return 0;
}
peer->v_start = BGP_INIT_START_TIMER;
if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status))