iptuntap: show processes using tuntap interface

Show which processes are using which tun/tap devices, e.g.:

$ ip -d tuntap
tun0: tun
	Attached to processes: vpnc(9531)
vnet0: tap vnet_hdr
	Attached to processes: qemu-system-x86(10442)
virbr0-nic: tap UNKNOWN_FLAGS:800
	Attached to processes:

Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
1 file changed