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authorDavid Ahern <dsahern@gmail.com>2019-04-05 16:30:38 -0700
committerDavid S. Miller <davem@davemloft.net>2019-04-08 15:22:41 -0700
commit1a38c43d319e745cf12055a266a1f459e2ba9ec3 (patch)
treed0eb6c2d1324b3c1602003ea351f08dbbfc7ddc8 /net/ipv4/fib_semantics.c
parentipv4: Handle ipv6 gateway in fib_detect_death (diff)
downloadwireguard-linux-1a38c43d319e745cf12055a266a1f459e2ba9ec3.tar.xz
wireguard-linux-1a38c43d319e745cf12055a266a1f459e2ba9ec3.zip
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>
Diffstat (limited to 'net/ipv4/fib_semantics.c')
-rw-r--r--net/ipv4/fib_semantics.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index e5a6d431bfab..c1ea138335a2 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -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;