Subject: Re: Fw: Changing MAC addresses on ethernet interfaces?
To: None <email@example.com>
From: None <firstname.lastname@example.org>
Date: 01/17/2001 10:35:15
> > > > This will only work if we make struct ifaddr use struct sockaddr_storage
> > > > It currently uses struct sockaddr and struct sockaddr_dl does not fit in
> > > > it [by one byte; argh!]
> > >He's using it from inside the kernel, and since SIOCSIFADDR in a
> > >device ioctl routine sees an ifaddr *, it will work okay for him.
> > if we need ioctls, SIOCSLIFADDR could be used. at this moment
> > we supply it in AF_INET and AF_INET6 only.
> > (or SIOCSLPHYADDR, which is in KAME)
>Per a discussion w/ Christos, I think the way I'm going to do it is
>to version the ifreq structure, and provide compat members that
>can be accessed like sockaddrs (rather than sockaddr_storages).
i see, that should be okay (adding a member typed sockaddr_storage
into ifr_ifru). there may be some need for sizeof() fixes, though.