Date: Fri, 16 Jun 2000 22:19:27 +0100 From: Brian Somers <brian@Awfulhak.org> To: Bill Paul <wpaul@FreeBSD.org> Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org, brian@hak.lan.awfulhak.org Subject: Re: cvs commit: src/sys/sys sockio.h src/sys/net if.c src/sbin/ifconfig ifconfig.8 ifconfig.c Message-ID: <200006162119.WAA02547@hak.lan.Awfulhak.org> In-Reply-To: Message from Bill Paul <wpaul@FreeBSD.org> of "Fri, 16 Jun 2000 13:14:43 PDT." <200006162014.NAA12344@freefall.freebsd.org>
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Cool. So when's the ``setmac'' port being committed ?
> wpaul 2000/06/16 13:14:43 PDT
>
> Modified files:
> sys/sys sockio.h
> sys/net if.c
> sbin/ifconfig ifconfig.8 ifconfig.c
> Log:
> Implement SIOCSIFLLADDR, which allows you to change the link-level
> address on an interface. This basically allows you to do what my
> little setmac module/utility does via ifconfig. This involves the
> following changes:
>
> socket.h: define SIOCSIFLLADDR
> if.c: add support for SIOCSIFLLADDR, which resets the values in
> the arpcom struct and sockaddr_dl for the specified interface.
> Note that if the interface is already up, we need to down/up
> it in order to program the underlying hardware's receive filter.
> ifconfig.c: add lladdr command
> ifconfig.8: document lladdr command
>
> You can now force the MAC address on any ethernet interface to be
> whatever you want. (The change is not sticky across reboots of course:
> we don't actually reprogram the EEPROM or anything.) Actually, you
> can reprogram the MAC address on other kinds of interfaces too; this
> shouldn't be ethernet-specific (though at the moment it's limited to
> 6 bytes of address data).
>
> Nobody ran up to me and said "this is the politically correct way to
> do this!" so I don't want to hear any complaints from people who think
> I could have done it more elegantly. Consider yourselves lucky I didn't
> do it by having ifconfig tread all over /dev/kmem.
>
> Revision Changes Path
> 1.15 +2 -1 src/sys/sys/sockio.h
> 1.87 +31 -1 src/sys/net/if.c
> 1.29 +11 -1 src/sbin/ifconfig/ifconfig.8
> 1.52 +27 -2 src/sbin/ifconfig/ifconfig.c
--
Brian <brian@Awfulhak.org> <brian@[uk.]FreeBSD.org>
<http://www.Awfulhak.org>; <brian@[uk.]OpenBSD.org>
Don't _EVER_ lose your sense of humour !
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