From: Ido Schimmel idosch@mellanox.com
[ Upstream commit 5609b80a37f69f796548339e675256188b29c17d ]
It is valid to install routes with a nexthop device that does not have a carrier, so we need to make sure they're marked accordingly.
As explained in the previous patch, host and anycast routes are never marked with the 'linkdown' flag.
Note that reject routes are unaffected, as these use the loopback device which always has a carrier.
Signed-off-by: Ido Schimmel idosch@mellanox.com Acked-by: David Ahern dsahern@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- net/ipv6/route.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index a4a865c8a23c..fa283eec92a3 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -2157,6 +2157,9 @@ static struct rt6_info *ip6_route_info_create(struct fib6_config *cfg, rt->rt6i_flags = cfg->fc_flags;
install_route: + if (!(rt->rt6i_flags & (RTF_LOCAL | RTF_ANYCAST)) && + !netif_carrier_ok(dev)) + rt->rt6i_nh_flags |= RTNH_F_LINKDOWN; rt->dst.dev = dev; rt->rt6i_idev = idev; rt->rt6i_table = table;