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ipv4: Handle ipv6 gateway in ipv4_confirm_neigh 

Update ipv4_confirm_neigh to handle an ipv6 gateway.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2019-04-05 16:30:36 -07:00 committed by David S. Miller
parent 6f5f68d05e
commit 6de9c0557e
1 changed files with 6 additions and 4 deletions
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10
net/ipv4/route.c
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@ -465,13 +465,15 @@ static void ipv4_confirm_neigh(const struct dst_entry *dst, const void *daddr)
struct net_device *dev = dst->dev; struct net_device *dev = dst->dev;
const __be32 *pkey = daddr; const __be32 *pkey = daddr;
if (rt->rt_gw_family == AF_INET) if (rt->rt_gw_family == AF_INET) {
pkey = (const __be32 *)&rt->rt_gw4; pkey = (const __be32 *)&rt->rt_gw4;
else if (!daddr || } else if (rt->rt_gw_family == AF_INET6) {
return __ipv6_confirm_neigh_stub(dev, &rt->rt_gw6);
} else if (!daddr ||
(rt->rt_flags & (rt->rt_flags &
(RTCF_MULTICAST | RTCF_BROADCAST | RTCF_LOCAL))) (RTCF_MULTICAST | RTCF_BROADCAST | RTCF_LOCAL))) {
return; return;
}
__ipv4_confirm_neigh(dev, *(__force u32 *)pkey); __ipv4_confirm_neigh(dev, *(__force u32 *)pkey);
} }