libmnl limitation...

David Miller
2011-02-20T21:40:51Z

Unfortunately, libmnl only allows setting socket options
that are of SOL_NETLINK.

This precludes setting socket options such as SO_ATTACH_FILTER
which need to be of level SOL_SOCKET.

It seems to be a mistake to have hard-coded the socket level
instead of simply letting the user specify it :-/