Add new function if_link_state_change() to take care of sending messages

on the routing socket and notifying carp() of link changes.

ok brad@ mpf@

2 files changed, 18 insertions, 2 deletions

diff --git a/sys/net/if.c b/sys/net/if.c
index 94374a5ebe2..16308d8b767 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: if.c,v 1.103 2005/01/18 22:10:10 claudio Exp $	*/
+/*	$OpenBSD: if.c,v 1.104 2005/02/07 15:00:16 mcbride Exp $	*/
 /*	$NetBSD: if.c,v 1.35 1996/05/07 05:26:04 thorpej Exp $	*/
 
 /*
@@ -1105,6 +1105,21 @@ if_up(struct ifnet *ifp)
 }
 
 /*
+ * Process a link state change.
+ * NOTE: must be called at splsoftnet or equivalent.
+ * XXX Should be converted to dohooks().
+ */
+void
+if_link_state_change(struct ifnet *ifp)
+{
+	rt_ifmsg(ifp);
+#if NCARP > 0           
+	if (ifp->if_carp)
+		carp_carpdev_state(ifp);
+#endif          
+}
+
+/*
  * Flush an interface queue.
  */
 void
diff --git a/sys/net/if.h b/sys/net/if.h
index 670b792058e..31df9263080 100644
--- a/sys/net/if.h
+++ b/sys/net/if.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: if.h,v 1.63 2005/01/14 11:49:01 henning Exp $	*/
+/*	$OpenBSD: if.h,v 1.64 2005/02/07 15:00:17 mcbride Exp $	*/
 /*	$NetBSD: if.h,v 1.23 1996/05/07 02:40:27 thorpej Exp $	*/
 
 /*
@@ -650,6 +650,7 @@ void	if_attachtail(struct ifnet *);
 void	if_attachhead(struct ifnet *);
 void	if_detach(struct ifnet *);
 void	if_down(struct ifnet *);
+void	if_link_state_change(struct ifnet *);
 void	if_qflush(struct ifqueue *);
 void	if_slowtimo(void *);
 void	if_up(struct ifnet *);