From 24f5b855e17df7e355eacd6c4a12cc4d6a6c9ff0 Mon Sep 17 00:00:00 2001 From: Li RongQing Date: Thu, 19 Dec 2013 12:40:26 +0800 Subject: [PATCH] ipv6: always set the new created dst's from in ip6_rt_copy ip6_rt_copy only sets dst.from if ort has flag RTF_ADDRCONF and RTF_DEFAULT. but the prefix routes which did get installed by hand locally can have an expiration, and no any flag combination which can ensure a potential from does never expire, so we should always set the new created dst's from. This also fixes the new created dst is always expired since the ort, which is created by RA, maybe has RTF_EXPIRES and RTF_ADDRCONF, but no RTF_DEFAULT. Suggested-by: Hannes Frederic Sowa CC: Gao feng Signed-off-by: Li RongQing Acked-by: Hannes Frederic Sowa Signed-off-by: David S. Miller --- net/ipv6/route.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index a0a48ac..4b4944c 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1905,9 +1905,7 @@ static struct rt6_info *ip6_rt_copy(struct rt6_info *ort, else rt->rt6i_gateway = *dest; rt->rt6i_flags = ort->rt6i_flags; - if ((ort->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF)) == - (RTF_DEFAULT | RTF_ADDRCONF)) - rt6_set_from(rt, ort); + rt6_set_from(rt, ort); rt->rt6i_metric = 0; #ifdef CONFIG_IPV6_SUBTREES -- 2.7.4