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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/apm.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 APM_ENT_TYPE_APPLE_BOOT
#define APM_ENT_TYPE_APPLE_BOOT "Apple_Bootstrap"
#endif
#ifndef APM_ENT_TYPE_FREEBSD_NANDFS
#define APM_ENT_TYPE_FREEBSD_NANDFS "FreeBSD-nandfs"
#endif
static struct mkimg_alias apm_aliases[] = {
{ ALIAS_FREEBSD, ALIAS_PTR2TYPE(APM_ENT_TYPE_FREEBSD) },
{ ALIAS_FREEBSD_BOOT, ALIAS_PTR2TYPE(APM_ENT_TYPE_APPLE_BOOT) },
{ ALIAS_FREEBSD_NANDFS, ALIAS_PTR2TYPE(APM_ENT_TYPE_FREEBSD_NANDFS) },
{ ALIAS_FREEBSD_SWAP, ALIAS_PTR2TYPE(APM_ENT_TYPE_FREEBSD_SWAP) },
{ ALIAS_FREEBSD_UFS, ALIAS_PTR2TYPE(APM_ENT_TYPE_FREEBSD_UFS) },
{ ALIAS_FREEBSD_VINUM, ALIAS_PTR2TYPE(APM_ENT_TYPE_FREEBSD_VINUM) },
{ ALIAS_FREEBSD_ZFS, ALIAS_PTR2TYPE(APM_ENT_TYPE_FREEBSD_ZFS) },
{ ALIAS_NONE, 0 }
};
static lba_t
apm_metadata(u_int where, lba_t blk)
{
blk += (where == SCHEME_META_IMG_START) ? nparts + 2 : 0;
return (round_block(blk));
}
static int
apm_write(lba_t imgsz, void *bootcode __unused)
{
u_char *buf;
struct apm_ddr *ddr;
struct apm_ent *ent;
struct part *part;
int error;
buf = calloc(nparts + 2, secsz);
if (buf == NULL)
return (ENOMEM);
ddr = (void *)buf;
be16enc(&ddr->ddr_sig, APM_DDR_SIG);
be16enc(&ddr->ddr_blksize, secsz);
be32enc(&ddr->ddr_blkcount, imgsz);
/* partition entry for the partition table itself. */
ent = (void *)(buf + secsz);
be16enc(&ent->ent_sig, APM_ENT_SIG);
be32enc(&ent->ent_pmblkcnt, nparts + 1);
be32enc(&ent->ent_start, 1);
be32enc(&ent->ent_size, nparts + 1);
strncpy(ent->ent_type, APM_ENT_TYPE_SELF, sizeof(ent->ent_type));
strncpy(ent->ent_name, "Apple", sizeof(ent->ent_name));
STAILQ_FOREACH(part, &partlist, link) {
ent = (void *)(buf + (part->index + 2) * secsz);
be16enc(&ent->ent_sig, APM_ENT_SIG);
be32enc(&ent->ent_pmblkcnt, nparts + 1);
be32enc(&ent->ent_start, part->block);
be32enc(&ent->ent_size, part->size);
strncpy(ent->ent_type, ALIAS_TYPE2PTR(part->type),
sizeof(ent->ent_type));
if (part->label != NULL)
strncpy(ent->ent_name, part->label,
sizeof(ent->ent_name));
}
error = image_write(0, buf, nparts + 2);
free(buf);
return (error);
}
static struct mkimg_scheme apm_scheme = {
.name = "apm",
.description = "Apple Partition Map",
.aliases = apm_aliases,
.metadata = apm_metadata,
.write = apm_write,
.nparts = 4096,
.labellen = APM_ENT_NAMELEN - 1,
.maxsecsz = 4096
};
SCHEME_DEFINE(apm_scheme);
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