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ipv4: Handle ipv6 gateway in fib_good_nh 

Update fib_good_nh 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 16:30:38 -07:00 committed by David S. Miller
parent 619d182626
commit 1a38c43d31
1 changed files with 8 additions and 2 deletions
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10
net/ipv4/fib_semantics.c
View File

@ -1909,8 +1909,14 @@ static bool fib_good_nh(const struct fib_nh *nh)
rcu_read_lock_bh();
n = __ipv4_neigh_lookup_noref(nh->fib_nh_dev,
(__force u32)nh->fib_nh_gw4);
if (likely(nh->fib_nh_gw_family == AF_INET))
n = __ipv4_neigh_lookup_noref(nh->fib_nh_dev,
(__force u32)nh->fib_nh_gw4);
else if (nh->fib_nh_gw_family == AF_INET6)
n = __ipv6_neigh_lookup_noref_stub(nh->fib_nh_dev,
&nh->fib_nh_gw6);
else
n = NULL;
if (n)
state = n->nud_state;