From: Kirill Tkhai <ktk...@virtuozzo.com> Date: Wed, 20 Mar 2019 12:16:42 +0300
> In commit f2780d6d7475 "tun: Add ioctl() SIOCGSKNS cmd to allow > obtaining net ns of tun device" it was missed that tun may change > its net ns, while net ns of socket remains the same as it was > created initially. SIOCGSKNS returns net ns of socket, so it is > not suitable for obtaining net ns of device. > > We may have two tun devices with the same names in two net ns, > and in this case it's not possible to determ, which of them > fd refers to (TUNGETIFF will return the same name). > > This patch adds new ioctl() cmd for obtaining net ns of a device. > > Reported-by: Harald Albrecht <harald.albre...@gmx.net> > Signed-off-by: Kirill Tkhai <ktk...@virtuozzo.com> Applied.
