12d9d80011
before multiplying the 32-bit integrals to avoid any possibility of truncation before widening. Not a likely scenario to begin with...
136 lines
3.8 KiB
C
136 lines
3.8 KiB
C
/*-
|
|
* Copyright (c) 2014 Juniper Networks, Inc.
|
|
* 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/types.h>
|
|
#include <sys/disklabel.h>
|
|
#include <sys/endian.h>
|
|
#include <sys/errno.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "image.h"
|
|
#include "mkimg.h"
|
|
#include "scheme.h"
|
|
|
|
#ifndef FS_NANDFS
|
|
#define FS_NANDFS 30
|
|
#endif
|
|
|
|
static struct mkimg_alias bsd_aliases[] = {
|
|
{ ALIAS_FREEBSD_NANDFS, ALIAS_INT2TYPE(FS_NANDFS) },
|
|
{ ALIAS_FREEBSD_SWAP, ALIAS_INT2TYPE(FS_SWAP) },
|
|
{ ALIAS_FREEBSD_UFS, ALIAS_INT2TYPE(FS_BSDFFS) },
|
|
{ ALIAS_FREEBSD_VINUM, ALIAS_INT2TYPE(FS_VINUM) },
|
|
{ ALIAS_FREEBSD_ZFS, ALIAS_INT2TYPE(FS_ZFS) },
|
|
{ ALIAS_NONE, 0 }
|
|
};
|
|
|
|
static u_int
|
|
bsd_metadata(u_int where)
|
|
{
|
|
u_int secs;
|
|
|
|
secs = BBSIZE / secsz;
|
|
return ((where == SCHEME_META_IMG_START) ? secs : 0);
|
|
}
|
|
|
|
static int
|
|
bsd_write(lba_t imgsz, void *bootcode)
|
|
{
|
|
u_char *buf, *p;
|
|
struct disklabel *d;
|
|
struct partition *dp;
|
|
struct part *part;
|
|
int error, n;
|
|
uint16_t checksum;
|
|
|
|
buf = malloc(BBSIZE);
|
|
if (buf == NULL)
|
|
return (ENOMEM);
|
|
if (bootcode != NULL) {
|
|
memcpy(buf, bootcode, BBSIZE);
|
|
memset(buf + secsz, 0, secsz);
|
|
} else
|
|
memset(buf, 0, BBSIZE);
|
|
|
|
imgsz = (lba_t)ncyls * nheads * nsecs;
|
|
error = image_set_size(imgsz);
|
|
if (error) {
|
|
free(buf);
|
|
return (error);
|
|
}
|
|
|
|
d = (void *)(buf + secsz);
|
|
le32enc(&d->d_magic, DISKMAGIC);
|
|
le32enc(&d->d_secsize, secsz);
|
|
le32enc(&d->d_nsectors, nsecs);
|
|
le32enc(&d->d_ntracks, nheads);
|
|
le32enc(&d->d_ncylinders, ncyls);
|
|
le32enc(&d->d_secpercyl, nsecs * nheads);
|
|
le32enc(&d->d_secperunit, imgsz);
|
|
le16enc(&d->d_rpm, 3600);
|
|
le32enc(&d->d_magic2, DISKMAGIC);
|
|
le16enc(&d->d_npartitions, (8 > nparts + 1) ? 8 : nparts + 1);
|
|
le32enc(&d->d_bbsize, BBSIZE);
|
|
|
|
dp = &d->d_partitions[RAW_PART];
|
|
le32enc(&dp->p_size, imgsz);
|
|
STAILQ_FOREACH(part, &partlist, link) {
|
|
n = part->index + ((part->index >= RAW_PART) ? 1 : 0);
|
|
dp = &d->d_partitions[n];
|
|
le32enc(&dp->p_size, part->size);
|
|
le32enc(&dp->p_offset, part->block);
|
|
dp->p_fstype = ALIAS_TYPE2INT(part->type);
|
|
}
|
|
|
|
dp = &d->d_partitions[nparts + 1];
|
|
checksum = 0;
|
|
for (p = buf; p < (u_char *)dp; p += 2)
|
|
checksum ^= le16dec(p);
|
|
le16enc(&d->d_checksum, checksum);
|
|
|
|
error = image_write(0, buf, BBSIZE / secsz);
|
|
free(buf);
|
|
return (error);
|
|
}
|
|
|
|
static struct mkimg_scheme bsd_scheme = {
|
|
.name = "bsd",
|
|
.description = "BSD disk label",
|
|
.aliases = bsd_aliases,
|
|
.metadata = bsd_metadata,
|
|
.write = bsd_write,
|
|
.nparts = 19,
|
|
.bootcode = BBSIZE,
|
|
.maxsecsz = 512
|
|
};
|
|
|
|
SCHEME_DEFINE(bsd_scheme);
|