Date: Wed, 15 Dec 1999 01:36:43 +0000 From: Brian Somers <brian@awfulhak.org> To: Jonathan Lemon <jlemon@americantv.com> Cc: Brian Somers <brian@awfulhak.org>, arch@freebsd.org, brian@hak.lan.Awfulhak.org Subject: Re: The if_detach problem Message-ID: <199912150136.BAA01143@hak.lan.Awfulhak.org> In-Reply-To: Message from Jonathan Lemon <jlemon@americantv.com> of "Tue, 14 Dec 1999 17:39:36 CST." <19991214173936.37821@right.PCS>
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[.....]
> > Another (more real?) argument for keeping the interface but making it
> > unusable 'till the driver wants it again is that there may be
> > security concerns.... at the moment, ``netstat -i'' reports what's
> > been going on very nicely. Removing the interface entirely will
> > allow people to hide what should not be hidden....
>
> I'm not sure this applies. At the moment, `netstat -i' does not
> show interfaces which have no driver in the system. So if I load
> and then _unload_ a driver, what should 'netstat -i' report? The
> name of the (nonexistent) driver? Similarly, if the hardware
> happens to be a PCCARD, and it's popped out, its gone, and there
> isn't any point in keeping the iface around forever.
Yes, maybe a if_detach() based netstat -i style line would be more
appropriate ?
<looks at netstat -i output>
Hmm, it'd be nice to have netstat -i report per-IP stats too rather
than reporting each alias address as having the same (per-interface)
statistics. I'll stick it in my mental-todo-list :-I
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
de0 1500 <Link#1> 00.00.c0.ff.e9.ce 859160 0 541128 0 507
de0 1500 172.16/24 172.16.0.1 859160 0 541128 0 507
lp0* 1500 <Link#2> 0 0 0 0 0
sl0* 552 <Link#3> 0 0 0 0 0
sl1* 552 <Link#4> 0 0 0 0 0
ppp0* 1500 <Link#5> 0 0 0 0 0
ppp1* 1500 <Link#6> 0 0 0 0 0
lo0 16384 <Link#7> 957056 0 957056 0 0
lo0 16384 127 127.0.0.1 957056 0 957056 0 0
lo0 16384 195.166.136.6 195.166.136.63 957056 0 957056 0 0
tun0 1500 <Link#8> 11556 0 17744 0 0
tun0 1500 172.16 172.16.0.1 11556 0 17744 0 0
tun0 1500 212.74.9.182/ 212.74.9.182 11556 0 17744 0 0
tun0 1500 212.74.9.153/ 212.74.9.153 11556 0 17744 0 0
tun0 1500 212.74.9.214/ 212.74.9.214 11556 0 17744 0 0
tun0 1500 212.74.9.244/ 212.74.9.244 11556 0 17744 0 0
tun0 1500 212.74.9.132/ 212.74.9.132 11556 0 17744 0 0
tun0 1500 212.74.9.163/ 212.74.9.163 11556 0 17744 0 0
tun0 1500 212.74.9.155/ 212.74.9.155 11556 0 17744 0 0
tun0 1500 212.74.9.235/ 212.74.9.235 11556 0 17744 0 0
tun0 1500 212.74.9.152/ 212.74.9.152 11556 0 17744 0 0
tun0 1500 212.74.9 212.74.9.221 11556 0 17744 0 0
> --
> Jonathan
--
Brian <brian@Awfulhak.org> <brian@FreeBSD.org>
<http://www.Awfulhak.org>; <brian@OpenBSD.org>
Don't _EVER_ lose your sense of humour ! <brian@FreeBSD.org.uk>
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