isisd: lib: refactor ISIS BFD API

Use `zclient_bfd_command` instead of `bfd_peer_sendmsg`.

Signed-off-by: GalaxyGorilla <sascha@netdef.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/bfd.c b/lib/bfd.c
index d2bcb5b8aa..3c298cce9e 100644
--- a/lib/bfd.c
+++ b/lib/bfd.c
@@ -128,6 +128,8 @@ void bfd_set_param(struct bfd_info **bfd_info, uint32_t min_rx, uint32_t min_tx,
 /*
  * bfd_peer_sendmsg - Format and send a peer register/Unregister
  *                    command to Zebra to be forwarded to BFD
+ *
+ * DEPRECATED: use zclient_bfd_command instead
  */
 void bfd_peer_sendmsg(struct zclient *zclient, struct bfd_info *bfd_info,
 		      int family, void *dst_ip, void *src_ip, char *if_name,
@@ -441,6 +443,15 @@ int zclient_bfd_command(struct zclient *zc, struct bfd_session_arg *args)
 	struct stream *s;
 	size_t addrlen;
 
+	/* Individual reg/dereg messages are suppressed during shutdown. */
+	if (CHECK_FLAG(bfd_gbl.flags, BFD_GBL_FLAG_IN_SHUTDOWN)) {
+		if (bfd_debug)
+			zlog_debug(
+				"%s: Suppressing BFD peer reg/dereg messages",
+				__func__);
+		return -1;
+	}
+
 	/* Check socket. */
 	if (!zc || zc->sock < 0) {
 		if (bfd_debug)