In article <20010116112800.Z475@dr-evil.shagadelic.org>,
Jason R Thorpe <thorpej@zembu.com> wrote:
>On Tue, Jan 16, 2001 at 01:55:44PM -0500, Andrew Gillham wrote:
>
> > > Is anyone planning to add a mechanism to override the UAA on an
> > > ethernet card?
>
>I just whipped up a patch that should allow this in -current, but
>it's tedious to use without some other changes... but, here it is:

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!]

christos

>Index: if_ethersubr.c
>===================================================================
>RCS file: /cvsroot/syssrc/sys/net/if_ethersubr.c,v
>retrieving revision 1.74
>diff -c -r1.74 if_ethersubr.c
>*** if_ethersubr.c	2000/12/26 23:54:34	1.74
>--- if_ethersubr.c	2001/01/16 19:27:02
>***************
>*** 1148,1153 ****
>--- 1148,1171 ----
>  	case SIOCSIFADDR:
>  		ifp->if_flags |= IFF_UP;
>  		switch (ifa->ifa_addr->sa_family) {
>+ 		case AF_LINK:
>+ 		    {
>+ 			struct sockaddr_dl *sdl =
>+ 			    (struct sockaddr_dl *) ifa->ifa_addr;
>+ 
>+ 			if (sdl->sdl_type != IFT_ETHER ||
>+ 			    sdl->sdl_alen != ifp->if_addrlen) {
>+ 				error = EINVAL;
>+ 				break;
>+ 			}
>+ 
>+ 			memcpy(LLADDR(ifp->if_sadl), LLADDR(sdl),
>+ 			    ifp->if_addrlen);
>+ 
>+ 			/* Set new address. */
>+ 			error = (*ifp->if_init)(ifp);
>+ 			break;
>+ 		    }
>  #ifdef INET
>  		case AF_INET:
>  			if ((error = (*ifp->if_init)(ifp)) != 0)
>
>-- 
>        -- Jason R. Thorpe <thorpej@zembu.com>