ipv4: Flag fib_info with a fib_nh using IPv6 gateway

Until support is added to the offload drivers, they need to be able to
reject routes with an IPv6 gateway. To that end add a flag to fib_info
that indicates if any fib_nh has a v6 gateway. The flag allows the drivers
to efficiently know the use of a v6 gateway without walking all fib_nh
tied to a fib_info each time a route is added.

Update mlxsw and rocker to reject the routes with extack message as to why.

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 16:30:39 -07:00 committed by David S. Miller
parent 1a38c43d31
commit 19a9d136f1
4 changed files with 20 additions and 0 deletions

View file

@ -1349,6 +1349,8 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
change_nexthops(fi) {
fib_info_update_nh_saddr(net, nexthop_nh);
if (nexthop_nh->fib_nh_gw_family == AF_INET6)
fi->fib_nh_is_v6 = true;
} endfor_nexthops(fi)
fib_rebalance(fi);