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/*-
* 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/endian.h>
#include <sys/errno.h>
#include <sys/vtoc.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "image.h"
#include "mkimg.h"
#include "scheme.h"
#ifndef VTOC_TAG_FREEBSD_NANDFS
#define VTOC_TAG_FREEBSD_NANDFS 0x0905
#endif
static struct mkimg_alias vtoc8_aliases[] = {
{ ALIAS_FREEBSD_NANDFS, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_NANDFS) },
{ ALIAS_FREEBSD_SWAP, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_SWAP) },
{ ALIAS_FREEBSD_UFS, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_UFS) },
{ ALIAS_FREEBSD_VINUM, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_VINUM) },
{ ALIAS_FREEBSD_ZFS, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_NANDFS) },
{ ALIAS_NONE, 0 }
};
static u_int
vtoc8_metadata(u_int where)
{
u_int secs;
secs = (where == SCHEME_META_IMG_START) ? nsecs * nheads : 0;
return (secs);
}
static int
vtoc8_write(lba_t imgsz, void *bootcode __unused)
{
struct vtoc8 vtoc8;
struct part *part;
u_char *p;
int error, n;
uint16_t ofs, sum;
imgsz = (lba_t)ncyls * nheads * nsecs;
memset(&vtoc8, 0, sizeof(vtoc8));
sprintf(vtoc8.ascii, "FreeBSD%lldM",
(long long)(imgsz * secsz / 1048576));
be32enc(&vtoc8.version, VTOC_VERSION);
be16enc(&vtoc8.nparts, VTOC8_NPARTS);
be32enc(&vtoc8.sanity, VTOC_SANITY);
be16enc(&vtoc8.rpm, 3600);
be16enc(&vtoc8.physcyls, ncyls);
be16enc(&vtoc8.ncyls, ncyls);
be16enc(&vtoc8.altcyls, 0);
be16enc(&vtoc8.nheads, nheads);
be16enc(&vtoc8.nsecs, nsecs);
be16enc(&vtoc8.magic, VTOC_MAGIC);
error = image_set_size(imgsz);
if (error)
return (error);
be32enc(&vtoc8.map[VTOC_RAW_PART].nblks, imgsz);
STAILQ_FOREACH(part, &partlist, link) {
n = part->index + ((part->index >= VTOC_RAW_PART) ? 1 : 0);
be16enc(&vtoc8.part[n].tag, ALIAS_TYPE2INT(part->type));
be32enc(&vtoc8.map[n].cyl, part->block / (nsecs * nheads));
be32enc(&vtoc8.map[n].nblks, part->size);
}
/* Calculate checksum. */
sum = 0;
p = (void *)&vtoc8;
for (ofs = 0; ofs < sizeof(vtoc8) - 2; ofs += 2)
sum ^= be16dec(p + ofs);
be16enc(&vtoc8.cksum, sum);
error = image_write(0, &vtoc8, 1);
return (error);
}
static struct mkimg_scheme vtoc8_scheme = {
.name = "vtoc8",
.description = "SMI VTOC8 disk labels",
.aliases = vtoc8_aliases,
.metadata = vtoc8_metadata,
.write = vtoc8_write,
.nparts = VTOC8_NPARTS - 1,
.maxsecsz = 512
};
SCHEME_DEFINE(vtoc8_scheme);
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