bgpd: bmp loc-rib peer up/down for vrfs

added bmp bgp peer for vrfs
added peer up vrf in bmp peer up state
added vrf state in bmpbgp
added safe bmp_peer_sendall : bmp_peer_sendall_safe
changed bgp_open_send to call new bgp_open_make
bgp_open_make creates a bgp open packet, now used in bmp for peer up vrf
added hook and call to bgp instance state
vrf peer state is recomputed when interfaces (including vrf itf) go up / down
and when it gets created or removed

Link: https://github.com/mxyns/frr/commit/e48ba380700d53124131f4e4419f646c05b40c86
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
Signed-off-by: Maxence Younsi <mx.yns@outlook.fr>

1 files changed, 29 insertions, 22 deletions

diff --git a/bgpd/bgp_packet.c b/bgpd/bgp_packet.c
index 646ab1d95f..6b116db107 100644
--- a/bgpd/bgp_packet.c
+++ b/bgpd/bgp_packet.c
@@ -641,31 +641,11 @@ void bgp_keepalive_send(struct peer *peer)
 	bgp_writes_on(peer->connection);
 }
 
-/*
- * Creates a BGP Open packet and appends it to the peer's output queue.
- * Sets capabilities as necessary.
- */
-void bgp_open_send(struct peer_connection *connection)
+struct stream *bgp_open_make(struct peer *peer, uint16_t send_holdtime, as_t local_as)
 {
-	struct stream *s;
-	uint16_t send_holdtime;
-	as_t local_as;
-	struct peer *peer = connection->peer;
+	struct stream *s = stream_new(BGP_STANDARD_MESSAGE_MAX_PACKET_SIZE);
 	bool ext_opt_params = false;
 
-	if (CHECK_FLAG(peer->flags, PEER_FLAG_TIMER))
-		send_holdtime = peer->holdtime;
-	else
-		send_holdtime = peer->bgp->default_holdtime;
-
-	/* local-as Change */
-	if (peer->change_local_as)
-		local_as = peer->change_local_as;
-	else
-		local_as = peer->local_as;
-
-	s = stream_new(BGP_STANDARD_MESSAGE_MAX_PACKET_SIZE);
-
 	/* Make open packet. */
 	bgp_packet_set_marker(s, BGP_MSG_OPEN);
 
@@ -704,6 +684,33 @@ void bgp_open_send(struct peer_connection *connection)
 			   ext_opt_params ? " (Extended)" : "", BGP_VERSION_4,
 			   local_as, send_holdtime, &peer->local_id);
 
+	return s;
+}
+
+/*
+ * Creates a BGP Open packet and appends it to the peer's output queue.
+ * Sets capabilities as necessary.
+ */
+void bgp_open_send(struct peer_connection *connection)
+{
+	struct stream *s;
+	uint16_t send_holdtime;
+	as_t local_as;
+	struct peer *peer = connection->peer;
+
+	if (CHECK_FLAG(peer->flags, PEER_FLAG_TIMER))
+		send_holdtime = peer->holdtime;
+	else
+		send_holdtime = peer->bgp->default_holdtime;
+
+	/* local-as Change */
+	if (peer->change_local_as)
+		local_as = peer->change_local_as;
+	else
+		local_as = peer->local_as;
+
+	s = bgp_open_make(peer, send_holdtime, local_as);
+
 	/* Dump packet if debug option is set. */
 	/* bgp_packet_dump (s); */
 	hook_call(bgp_packet_send, peer, BGP_MSG_OPEN, stream_get_endp(s), s);