From 1a38c43d319e745cf12055a266a1f459e2ba9ec3 Mon Sep 17 00:00:00 2001 From: David Ahern <dsahern@gmail.com> Date: Fri, 5 Apr 2019 16:30:38 -0700 Subject: [PATCH] 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> --- net/ipv4/fib_semantics.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index e5a6d431bfab0..c1ea138335a26 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; -- GitLab