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authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2008-05-13 02:52:55 +0900
committerYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2008-06-12 09:19:08 +0900
commit36e3deae8ba84865fd9eb3f2f21bbc00d49b7544 (patch)
treed78448c8c5b9570c2c1066e03a4dc31a73b2085b /net
parent20c61fbd8deb2ada0ac3acecf6156a986dbfff2d (diff)
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ipv6 route: Fix route lifetime in netlink message.
1) We may have route lifetime larger than INT_MAX. In that case we had wired value in lifetime. Use INT_MAX if lifetime does not fit in s32. 2) Lifetime is valid iif RTF_EXPIRES is set. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/route.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 220cffe..d1f3e19 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2196,8 +2196,12 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
NLA_PUT_U32(skb, RTA_PRIORITY, rt->rt6i_metric);
- expires = (rt->rt6i_flags & RTF_EXPIRES) ?
- rt->rt6i_expires - jiffies : 0;
+ if (!(rt->rt6i_flags & RTF_EXPIRES))
+ expires = 0;
+ else if (rt->rt6i_expires - jiffies < INT_MAX)
+ expires = rt->rt6i_expires - jiffies;
+ else
+ expires = INT_MAX;
if (rtnl_put_cacheinfo(skb, &rt->u.dst, 0, 0, 0,
expires, rt->u.dst.error) < 0)