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/*-
* Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/disklabel.h>
#include <stand.h>
#include <string.h>
#include "bootstrap.h"
#include "ps3.h"
#include "ps3devdesc.h"
static int ps3_parsedev(struct ps3_devdesc **dev, const char *devspec,
const char **path);
/*
* Point (dev) at an allocated device specifier for the device matching the
* path in (devspec). If it contains an explicit device specification,
* use that. If not, use the default device.
*/
int
ps3_getdev(void **vdev, const char *devspec, const char **path)
{
struct ps3_devdesc **dev = (struct ps3_devdesc **)vdev;
int rv = 0;
/*
* If it looks like this is just a path and no
* device, go with the current device.
*/
if ((devspec == NULL) || (devspec[0] == '/') ||
(strchr(devspec, ':') == NULL)) {
rv = ps3_parsedev(dev, getenv("currdev"), NULL);
if (rv == 0 && path != NULL)
*path = devspec;
return(rv);
}
/*
* Try to parse the device name off the beginning of the devspec.
*/
return (ps3_parsedev(dev, devspec, path));
}
/*
* Point (dev) at an allocated device specifier matching the string version
* at the beginning of (devspec). Return a pointer to the remaining
* text in (path).
*
* In all cases, the beginning of (devspec) is compared to the names
* of known devices in the device switch, and then any following text
* is parsed according to the rules applied to the device type.
*
* For disk-type devices, the syntax is:
*
* disk<unit>[<partition>]:
*
*/
static int
ps3_parsedev(struct ps3_devdesc **dev, const char *devspec, const char **path)
{
struct ps3_devdesc *idev;
struct devsw *dv;
char *cp;
const char *np;
int i, unit, pnum, ptype, err;
/* minimum length check */
if (strlen(devspec) < 2)
return(EINVAL);
/* look for a device that matches */
for (i = 0, dv = NULL; devsw[i] != NULL; i++) {
if (!strncmp(devspec, devsw[i]->dv_name,
strlen(devsw[i]->dv_name))) {
dv = devsw[i];
break;
}
}
if (dv == NULL)
return(ENOENT);
idev = malloc(sizeof(struct ps3_devdesc));
err = 0;
np = (devspec + strlen(dv->dv_name));
switch(dv->dv_type) {
case DEVT_NONE:
break;
case DEVT_DISK:
unit = -1;
pnum = -1;
ptype = -1;
if (*np && (*np != ':')) {
/* next comes the unit number */
unit = strtol(np, &cp, 10);
if (cp == np) {
err = EUNIT;
goto fail;
}
if (*cp && (*cp != ':')) {
/* get partition */
if (*cp == 'p' && *(cp + 1) &&
*(cp + 1) != ':') {
pnum = strtol(cp + 1, &cp, 10);
ptype = PTYPE_GPT;
} else {
pnum = *cp - 'a';
ptype = PTYPE_BSDLABEL;
if ((pnum < 0) ||
(pnum >= MAXPARTITIONS)) {
err = EPART;
goto fail;
}
cp++;
}
}
}
if (*cp && (*cp != ':')) {
err = EINVAL;
goto fail;
}
idev->d_unit = unit;
idev->d_disk.pnum = pnum;
idev->d_disk.ptype = ptype;
idev->d_disk.data = NULL;
if (path != NULL)
*path = (*cp == 0) ? cp : cp + 1;
break;
case DEVT_NET:
/*
* PS3 only has one network interface (well, two, but
* netbooting over wireless is not something I'm going
* to worry about.
*/
idev->d_unit = 0;
break;
default:
err = EINVAL;
goto fail;
}
idev->d_dev = dv;
idev->d_type = dv->dv_type;
if (dev == NULL) {
free(idev);
} else {
*dev = idev;
}
return (0);
fail:
free(idev);
return (err);
}
char *
ps3_fmtdev(void *vdev)
{
struct ps3_devdesc *dev = (struct ps3_devdesc *)vdev;
char *cp;
static char buf[128];
switch(dev->d_type) {
case DEVT_NONE:
strcpy(buf, "(no device)");
break;
case DEVT_DISK:
cp = buf;
cp += sprintf(cp, "%s%d", dev->d_dev->dv_name, dev->d_unit);
if (dev->d_kind.disk.pnum >= 0) {
if (dev->d_kind.disk.ptype == PTYPE_BSDLABEL)
cp += sprintf(cp, "%c",
dev->d_kind.disk.pnum + 'a');
else if (dev->d_kind.disk.ptype == PTYPE_GPT)
cp += sprintf(cp, "p%i",
dev->d_kind.disk.pnum);
}
strcat(cp, ":");
break;
case DEVT_NET:
sprintf(buf, "%s%d:", dev->d_dev->dv_name, dev->d_unit);
break;
}
return(buf);
}
/*
* Set currdev to suit the value being supplied in (value).
*/
int
ps3_setcurrdev(struct env_var *ev, int flags, const void *value)
{
struct ps3_devdesc *ncurr;
int rv;
if ((rv = ps3_parsedev(&ncurr, value, NULL)) != 0)
return (rv);
free(ncurr);
env_setenv(ev->ev_name, flags | EV_NOHOOK, value, NULL, NULL);
return (0);
}
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