/*
* 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 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/modctl.h>
#include <sys/sunddi.h>
/* internal global data */
static struct modlmisc modlmisc = {
&mod_miscops, "bootdev misc module"
};
static struct modlinkage modlinkage = {
MODREV_1, (void *)&modlmisc, NULL
};
int
_init()
{
return (mod_install(&modlinkage));
}
int
_fini()
{
return (mod_remove(&modlinkage));
}
int
_info(struct modinfo *modinfop)
{
return (mod_info(&modlinkage, modinfop));
}
/*
* convert a prom device path to an equivalent path in /devices
* Does not deal with aliases. Does deal with pathnames which
* are not fully qualified. This routine is generalized
* to work across several flavors of OBP
*/
int
i_promname_to_devname(char *prom_name, char *ret_buf)
{
if (prom_name == NULL || ret_buf == NULL ||
(strlen(prom_name) >= MAXPATHLEN)) {
return (EINVAL);
}
if (i_ddi_prompath_to_devfspath(prom_name, ret_buf) != DDI_SUCCESS)
return (EINVAL);
return (0);
}
/*
* If bootstring contains a device path, we need to convert to a format
* the prom will understand. To do so, we convert the existing path to
* a prom-compatible path and return the value of new_path. If the
* caller specifies new_path as NULL, we allocate an appropriately
* sized new_path on behalf of the caller. If the caller invokes this
* function with new_path = NULL, they must do so from a context in
* which it is safe to perform a sleeping memory allocation.
*
* NOTE: Intel does not have a real PROM, so the implementation
* simply returns a copy of the string passed in.
*/
char *
i_convert_boot_device_name(char *cur_path, char *new_path, size_t *len)
{
if (new_path != NULL) {
(void) snprintf(new_path, *len, "%s", cur_path);
return (new_path);
} else {
*len = strlen(cur_path) + 1;
new_path = kmem_alloc(*len, KM_SLEEP);
(void) snprintf(new_path, *len, "%s", cur_path);
return (new_path);
}
}