/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Return our machine address in the single argument.
*/
#include <sys/promif.h>
#include <sys/promimpl.h>
#include <sys/idprom.h>
/*ARGSUSED*/
int
prom_getmacaddr(ihandle_t hd, caddr_t ea)
{
idprom_t idprom;
pnode_t macnodeid;
/*
* Look for the 'mac-address' property in the device node
* associated with the ihandle 'hd'. This handles the
* cases when we booted from the network device, using either
* the platform mac address or a local mac address. This
* code will always return whichever mac-address was used by the
* firmware (local or platform, depending on nvram settings).
*/
macnodeid = prom_getphandle(hd);
if (macnodeid != OBP_BADNODE) {
if (prom_getproplen(macnodeid, OBP_MAC_ADDR) != -1) {
(void) prom_getprop(macnodeid, OBP_MAC_ADDR, ea);
return (0);
}
}
/*
* The code above, should have taken care of the case
* when we booted from the device ... otherwise, as a fallback
* case, return the system mac address from the idprom.
* This code (idprom) is SMCC (and compatibles) platform-centric.
* This code always returns the platform mac address.
*/
if (prom_getidprom((caddr_t)&idprom, sizeof (idprom)) == 0) {
char *f = (char *)idprom.id_ether;
char *t = ea;
int i;
for (i = 0; i < sizeof (idprom.id_ether); ++i)
*t++ = *f++;
return (0);
} else
return (-1); /* our world must be starting to explode */
}