Commit 5609b80a authored Jan 07, 2018 by Ido Schimmel Committed by David S. Miller Jan 07, 2018

ipv6: Set nexthop flags during route creation



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>

parent 27c6fa73

net/ipv6/route.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -2746,6 +2746,9 @@ 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;

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