From 62d98ccd699ff117e5eb0fb72d70e9ed45d5a9d7 Mon Sep 17 00:00:00 2001
From: ume <ume@FreeBSD.org>
Date: Wed, 28 Jan 2004 15:01:39 +0000
Subject: protect access to ifnet structure with mutex.

---
 sys/netinet6/nd6.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'sys/netinet6/nd6.c')

diff --git a/sys/netinet6/nd6.c b/sys/netinet6/nd6.c
index 14f24c1..4f0c1ba 100644
--- a/sys/netinet6/nd6.c
+++ b/sys/netinet6/nd6.c
@@ -1795,6 +1795,7 @@ nd6_slowtimo(ignored_arg)
 
 	callout_reset(&nd6_slowtimo_ch, ND6_SLOWTIMER_INTERVAL * hz,
 	    nd6_slowtimo, NULL);
+	IFNET_RLOCK();
 	for (ifp = TAILQ_FIRST(&ifnet); ifp; ifp = TAILQ_NEXT(ifp, if_list)) {
 		nd6if = ND_IFINFO(ifp);
 		if (nd6if->basereachable && /* already initialized */
@@ -1809,6 +1810,7 @@ nd6_slowtimo(ignored_arg)
 			nd6if->reachable = ND_COMPUTE_RTIME(nd6if->basereachable);
 		}
 	}
+	IFNET_RUNLOCK();
 	splx(s);
 }
 
-- 
cgit v1.1