When an interface address is removed and the last prefix

route is also being deleted, the link-layer address table
(arp or nd6) will flush those L2 llinfo entries that match
the removed prefix.

Reviewed by:	kmacy

1 files changed, 17 insertions, 0 deletions

diff --git a/sys/net/if_llatbl.c b/sys/net/if_llatbl.c
index 7ef1c9a..b5da1ea 100644
--- a/sys/net/if_llatbl.c
+++ b/sys/net/if_llatbl.c
@@ -195,6 +195,23 @@ lltable_drain(int af)
 	IFNET_RUNLOCK();
 }
 
+void
+lltable_prefix_free(int af, struct sockaddr *prefix, struct sockaddr *mask)
+{
+	struct lltable *llt;
+
+	IFNET_RLOCK();
+	SLIST_FOREACH(llt, &lltables, llt_link) {
+		if (llt->llt_af != af)
+			continue;
+
+		llt->llt_prefix_free(llt, prefix, mask);
+	}
+	IFNET_RUNLOCK();
+}
+
+
+
 /*
  * Create a new lltable.
  */