a33844e926
266512, 266511, 266510, 266509, 266176, 265468, 265467, 265462, 265170, 263926, 263924, 263923, 263919 and 263918. Revision 267182 changed mkimg.1 alongside other unrelated manpages. The change to mkimg.1 has been applied without registering a merge of the revision. This allows a future merge of r267182 to happen. Relnotes: yes
124 lines
3.7 KiB
C
124 lines
3.7 KiB
C
/*-
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* Copyright (c) 2014 Juniper Networks, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/endian.h>
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#include <sys/errno.h>
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#include <sys/vtoc.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "image.h"
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#include "mkimg.h"
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#include "scheme.h"
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#ifndef VTOC_TAG_FREEBSD_NANDFS
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#define VTOC_TAG_FREEBSD_NANDFS 0x0905
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#endif
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static struct mkimg_alias vtoc8_aliases[] = {
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{ ALIAS_FREEBSD_NANDFS, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_NANDFS) },
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{ ALIAS_FREEBSD_SWAP, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_SWAP) },
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{ ALIAS_FREEBSD_UFS, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_UFS) },
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{ ALIAS_FREEBSD_VINUM, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_VINUM) },
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{ ALIAS_FREEBSD_ZFS, ALIAS_INT2TYPE(VTOC_TAG_FREEBSD_NANDFS) },
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{ ALIAS_NONE, 0 }
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};
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static u_int
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vtoc8_metadata(u_int where)
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{
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u_int secs;
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secs = (where == SCHEME_META_IMG_START) ? nsecs * nheads : 0;
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return (secs);
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}
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static int
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vtoc8_write(lba_t imgsz, void *bootcode __unused)
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{
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struct vtoc8 vtoc8;
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struct part *part;
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u_char *p;
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int error, n;
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uint16_t ofs, sum;
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imgsz = (lba_t)ncyls * nheads * nsecs;
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memset(&vtoc8, 0, sizeof(vtoc8));
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sprintf(vtoc8.ascii, "FreeBSD%lldM",
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(long long)(imgsz * secsz / 1048576));
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be32enc(&vtoc8.version, VTOC_VERSION);
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be16enc(&vtoc8.nparts, VTOC8_NPARTS);
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be32enc(&vtoc8.sanity, VTOC_SANITY);
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be16enc(&vtoc8.rpm, 3600);
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be16enc(&vtoc8.physcyls, ncyls);
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be16enc(&vtoc8.ncyls, ncyls);
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be16enc(&vtoc8.altcyls, 0);
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be16enc(&vtoc8.nheads, nheads);
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be16enc(&vtoc8.nsecs, nsecs);
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be16enc(&vtoc8.magic, VTOC_MAGIC);
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error = image_set_size(imgsz);
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if (error)
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return (error);
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be32enc(&vtoc8.map[VTOC_RAW_PART].nblks, imgsz);
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STAILQ_FOREACH(part, &partlist, link) {
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n = part->index + ((part->index >= VTOC_RAW_PART) ? 1 : 0);
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be16enc(&vtoc8.part[n].tag, ALIAS_TYPE2INT(part->type));
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be32enc(&vtoc8.map[n].cyl, part->block / (nsecs * nheads));
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be32enc(&vtoc8.map[n].nblks, part->size);
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}
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/* Calculate checksum. */
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sum = 0;
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p = (void *)&vtoc8;
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for (ofs = 0; ofs < sizeof(vtoc8) - 2; ofs += 2)
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sum ^= be16dec(p + ofs);
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be16enc(&vtoc8.cksum, sum);
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error = image_write(0, &vtoc8, 1);
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return (error);
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}
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static struct mkimg_scheme vtoc8_scheme = {
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.name = "vtoc8",
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.description = "SMI VTOC8 disk labels",
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.aliases = vtoc8_aliases,
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.metadata = vtoc8_metadata,
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.write = vtoc8_write,
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.nparts = VTOC8_NPARTS - 1,
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.maxsecsz = 512
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};
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SCHEME_DEFINE(vtoc8_scheme);
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