minix/usr.sbin/installboot/fstypes.c

134 lines
3.9 KiB
C
Raw Normal View History

2012-01-10 09:46:52 +01:00
/* $NetBSD: fstypes.c,v 1.13 2010/01/14 16:27:49 tsutsui Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Fredette and Luke Mewburn.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <sys/cdefs.h>
#if !defined(__lint)
__RCSID("$NetBSD: fstypes.c,v 1.13 2010/01/14 16:27:49 tsutsui Exp $");
#endif /* !__lint */
#include <sys/types.h>
#include <assert.h>
#include <err.h>
#include <stdio.h>
#include "installboot.h"
struct ib_fs fstypes[] = {
#ifndef NO_STAGE2
{ .name = "ffs", .match = ffs_match, .findstage2 = ffs_findstage2 },
{ .name = "raid", .match = raid_match, .findstage2 = ffs_findstage2 },
{ .name = "raw", .match = raw_match, .findstage2 = raw_findstage2 },
#endif
{ .name = NULL, }
};
#ifndef NO_STAGE2
int
hardcode_stage2(ib_params *params, uint32_t *maxblk, ib_block *blocks)
{
struct stat s2sb;
uint32_t nblk, i;
assert(params != NULL);
assert(params->stage2 != NULL);
assert(maxblk != NULL);
assert(blocks != NULL);
assert((params->flags & IB_STAGE2START) != 0);
assert(params->fstype != NULL);
assert(params->fstype->blocksize != 0);
if (stat(params->stage2, &s2sb) == -1) {
warn("Examining `%s'", params->stage2);
return (0);
}
if (!S_ISREG(s2sb.st_mode)) {
warnx("`%s' must be a regular file", params->stage2);
return (0);
}
nblk = s2sb.st_size / params->fstype->blocksize;
if (s2sb.st_size % params->fstype->blocksize != 0)
nblk++;
#if 0
fprintf(stderr, "for %s got size %lld blksize %u blocks %u\n",
params->stage2, s2sb.st_size, params->fstype->blocksize, nblk);
#endif
if (nblk > *maxblk) {
warnx("Secondary bootstrap `%s' has too many blocks "
"(calculated %u, maximum %u)",
params->stage2, nblk, *maxblk);
return (0);
}
for (i = 0; i < nblk; i++) {
blocks[i].block = params->s2start +
i * (params->fstype->blocksize / params->sectorsize);
blocks[i].blocksize = params->fstype->blocksize;
}
*maxblk = nblk;
return (1);
}
int
raw_match(ib_params *params)
{
assert(params != NULL);
assert(params->fstype != NULL);
params->fstype->blocksize = 8192; // XXX: hardcode
return (1); /* can always write to a "raw" file system */
}
int
raw_findstage2(ib_params *params, uint32_t *maxblk, ib_block *blocks)
{
assert(params != NULL);
assert(params->stage2 != NULL);
assert(maxblk != NULL);
assert(blocks != NULL);
if ((params->flags & IB_STAGE2START) == 0) {
warnx("Need `-B bno' for raw file systems");
return (0);
}
return (hardcode_stage2(params, maxblk, blocks));
}
#endif