boot.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* 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 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <sys/salib.h>
#include <sys/stat.h>
#include <sys/promif.h>
#include <sys/bootvfs.h>
#include <sys/boot_redirect.h>
#include "boot_plat.h"
/*
* This implementation of bootprog() is used by all bootloaders except wanboot.
*/
#define SUCCESS 0
#define FAILURE -1
/*
* bpath is the boot device path buffer.
* bargs is the boot arguments buffer.
*/
/*ARGSUSED*/
int
bootprog(char *bpath, char *bargs, boolean_t user_specified_filename)
{
boolean_t once = B_FALSE;
systype = set_fstype(v2path, bpath);
loop:
/*
* Beware: the following code may be executed twice, with different
* bpath's if we discover a redirection file.
*/
if (verbosemode) {
printf("device path '%s'\n", bpath);
if (strcmp(bpath, v2path) != 0)
printf("client path '%s'\n", v2path);
}
if (mountroot(bpath) != SUCCESS)
prom_panic("Could not mount filesystem.");
/*
* kernname (default-name) might have changed if mountroot() called
* boot_nfs_mountroot(), and it called set_default_filename().
*/
if (!user_specified_filename)
(void) strcpy(filename, kernname);
if (verbosemode)
printf("standalone = `%s', args = `%s'\n", filename, bargs);
set_client_bootargs(filename, bargs);
if (!once &&
(strcmp(systype, "ufs") == 0 || strcmp(systype, "hsfs") == 0)) {
char redirect[OBP_MAXPATHLEN];
post_mountroot(filename, redirect);
/*
* If we return at all, it's because we discovered
* a redirection file - the 'redirect' string now contains
* the name of the disk slice we should be looking at.
*
* Unmount the filesystem, tweak the boot path and retry
* the whole operation one more time.
*/
closeall(1);
once = B_TRUE;
redirect_boot_path(bpath, redirect);
if (verbosemode)
printf("%sboot: using '%s'\n", systype, bpath);
goto loop;
/*NOTREACHED*/
}
return (0);
}