Re: How to tell if a network interface was renamed (and from what)

Interesting.

Is this: /usr/src/tools/tools/ifinfo ?

Regards,
Ronald.
 
Van: Franco Fichtner <franco@opnsense.org>
Datum: maandag, 20 november 2023 22:23
Aan: Kristof Provost <kp@FreeBSD.org>
CC: Mike Karels <mike@karels.net>, "Mina Galic" <freebsd@igalic.co>, Zhenlei Huang <zlei@FreeBSD.org>, Kyle Evans <kevans@FreeBSD.org>, freebsd-net@freebsd.org
Onderwerp: Re: How to tell if a network interface was renamed (and from what)
> 
> FWIW, here is the relevant ifinfo output of a sample machine:
> 
> # ifinfo | grep ^Interface
> Interface igb0 (igb0):
> Interface igb1 (igb1):
> Interface igb2 (igb2):
> Interface igb3 (igb3):
> Interface enc0 (enc0):
> Interface lo0 (lo0):
> Interface pflog0 (pflog0):
> Interface pfsync0 (pfsync0):
> Interface lagg0 (lagg0):
> Interface igb2_vlan42 (vlan0):
> Interface vlan0.1.23 (vlan1):
> Interface vlan0.3 (vlan2):
> Interface vlan0.5.6.7 (vlan3):
> Interface vlan01. (vlan4):
> Interface vlan06 (vlan5):
> Interface vlan08 (vlan6):
> Interface qinq0.123 (vlan7):
> Interface gre2 (gre2):
> Interface gre0 (gre0):
> Interface gif4 (gif4):
> Interface gif1 (gif1):
> Interface gif0 (gif0):
> Interface l2tp0 (ng0):
> Interface bridge0 (bridge0):
> Interface lo1 (lo1):
> Interface lo2 (lo2):
> Interface ovpns2 (tap2):
> Interface ovpnc1 (tun1):
> Interface ovpnc3 (tun3):
> Interface ovpns4 (tun4):
> Interface wg0 (wg0):
> Interface wg1 (wg1):
> 
> > On 20. Nov 2023, at 22:16, Franco Fichtner <franco@opnsense.org> wrote:
> >
> >
> >> On 20. Nov 2023, at 21:56, Kristof Provost <kp@FreeBSD.org> wrote:
> >>
> >> I’d look in the direction of just adding a field to struct ifnet with the original interface name (likely easily done in if_attach()), along with a new ioctl to retrieve that field.
> >
> > ifconfig_get_orig_name() already exists, but apart from wlandebug
> > nothing is using it.
> >
> > The internally used IFDATA_DRIVERNAME also appears in ifinfo
> > (not installed in base) and bsnmpd but that's it.
> >
> > if_dname is the target and it exists in ifnet struct along with
> > a man page entry in inet(9).
> >
> > All that is really missing is a way to print it via ifconfig command.
> >
> >
> > Cheers,
> > Franco
> 
>  
> 
> 
>