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bgpd: Adding helper caller hooks for BGPD-ZEBRA integration for GR.

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*Adding helper caller hooks function for signalling from BGPD
to ZEBRA to enable or disable GR feature in ZEBRA depending
on bgp per peer gr configuration.

Signed-off-by: Biswajit Sadhu <sadhub@vmware.com>
This commit is contained in:
bisdhdh 2019-10-26 01:28:45 +05:30
parent 85ef4179ad
commit 0f0444fbd8
3 changed files with 16 additions and 0 deletions
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4
bgpd/bgp_network.c
View File

@ -489,6 +489,10 @@ static int bgp_accept(struct thread *thread)
peer_xfer_config(peer, peer1); peer_xfer_config(peer, peer1);
bgp_peer_gr_flags_update(peer); bgp_peer_gr_flags_update(peer);
BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(
peer->bgp,
peer->bgp->peer);
if (bgp_peer_gr_mode_get(peer) == PEER_DISABLE) { if (bgp_peer_gr_mode_get(peer) == PEER_DISABLE) {
UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_MODE); UNSET_FLAG(peer->sflags, PEER_STATUS_NSF_MODE);

6
bgpd/bgp_open.c
View File

@ -1342,7 +1342,13 @@ static void bgp_peer_send_gr_capability(struct stream *s, struct peer *peer,
if (peer->bgp->t_startup) { if (peer->bgp->t_startup) {
SET_FLAG(restart_time, RESTART_R_BIT); SET_FLAG(restart_time, RESTART_R_BIT);
SET_FLAG(peer->cap, PEER_CAP_RESTART_BIT_ADV); SET_FLAG(peer->cap, PEER_CAP_RESTART_BIT_ADV);
if (BGP_DEBUG(graceful_restart, GRACEFUL_RESTART))
zlog_debug(
"BGP_GR:: Sending R-Bit for Peer :%s :",
peer->host);
} }
stream_putw(s, restart_time); stream_putw(s, restart_time);
/* Send address-family specific graceful-restart capability /* Send address-family specific graceful-restart capability

6
bgpd/bgp_packet.c
View File

@ -773,6 +773,9 @@ void bgp_notify_send_with_data(struct peer *peer, uint8_t code,
stream_fifo_push(peer->obuf, s); stream_fifo_push(peer->obuf, s);
bgp_peer_gr_flags_update(peer); bgp_peer_gr_flags_update(peer);
BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(
peer->bgp,
peer->bgp->peer);
bgp_write_notify(peer); bgp_write_notify(peer);
} }
@ -1813,6 +1816,9 @@ static int bgp_notify_receive(struct peer *peer, bgp_size_t size)
UNSET_FLAG(peer->sflags, PEER_STATUS_CAPABILITY_OPEN); UNSET_FLAG(peer->sflags, PEER_STATUS_CAPABILITY_OPEN);
bgp_peer_gr_flags_update(peer); bgp_peer_gr_flags_update(peer);
BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(
peer->bgp,
peer->bgp->peer);
return Receive_NOTIFICATION_message; return Receive_NOTIFICATION_message;
} }