Change bpfattach() link layer type to DLT_LOOP making pcap generated bpf filters work on the tun interface. itojun@ approved.
Change bpfattach() link layer type to DLT_LOOP making pcap generated
bpf filters work on the tun interface. itojun@ approved.

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars