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[IPV6] ROUTE: Do not route packets to link-local address on other device.

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With help from Wei Dong <weid@np.css.fujitsu.com>.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki
2007-02-04 20:15:04 -08:00
committed by David S. Miller
parent 26932566a4
commit a0d78ebf3a
1 changed files with 14 additions and 5 deletions
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17
net/ipv6/route.c
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@@ -311,12 +311,21 @@ static inline void rt6_probe(struct rt6_info *rt)
static int inline rt6_check_dev(struct rt6_info *rt, int oif) static int inline rt6_check_dev(struct rt6_info *rt, int oif)
{ {
struct net_device *dev = rt->rt6i_dev; struct net_device *dev = rt->rt6i_dev;
if (!oif || dev->ifindex == oif) int ret = 0;
if (!oif)
return 2; return 2;
if ((dev->flags & IFF_LOOPBACK) && if (dev->flags & IFF_LOOPBACK) {
rt->rt6i_idev && rt->rt6i_idev->dev->ifindex == oif) if (!WARN_ON(rt->rt6i_idev == NULL) &&
return 1; rt->rt6i_idev->dev->ifindex == oif)
ret = 1;
else
return 0; return 0;
}
if (dev->ifindex == oif)
return 2;
return ret;
} }
static int inline rt6_check_neigh(struct rt6_info *rt) static int inline rt6_check_neigh(struct rt6_info *rt)