Re: [PATCH iproute] iptuntap: show processes using tuntap interface
From: Stephen Hemminger <stephen@networkplumber.org>
Date: 2016-08-25 15:44:12
On Wed, 24 Aug 2016 20:08:25 +0200 Hannes Frederic Sowa [off-list ref] wrote:
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 <redacted>
I think reading all of /proc like this will scale really badly on large systems. Why reinvent lsof?