258 lines
7.1 KiB
C
258 lines
7.1 KiB
C
/* $NetBSD: msdos.c,v 1.14 2013/02/03 03:21:21 christos Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2013 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Christos Zoulas.
|
|
*
|
|
* 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.
|
|
* 3. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* 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(__RCSID) && !defined(__lint)
|
|
__RCSID("$NetBSD: msdos.c,v 1.14 2013/02/03 03:21:21 christos Exp $");
|
|
#endif /* !__lint */
|
|
|
|
#include <sys/param.h>
|
|
|
|
#if !HAVE_NBTOOL_CONFIG_H
|
|
#include <sys/mount.h>
|
|
#endif
|
|
|
|
#include <assert.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <dirent.h>
|
|
#include <util.h>
|
|
|
|
#include <ffs/buf.h>
|
|
#include <fs/msdosfs/denode.h>
|
|
#include "makefs.h"
|
|
#include "msdos.h"
|
|
#include "mkfs_msdos.h"
|
|
|
|
static int msdos_populate_dir(const char *, struct denode *, fsnode *,
|
|
fsnode *, fsinfo_t *);
|
|
|
|
void
|
|
msdos_prep_opts(fsinfo_t *fsopts)
|
|
{
|
|
struct msdos_options *msdos_opt = ecalloc(1, sizeof(*msdos_opt));
|
|
const option_t msdos_options[] = {
|
|
#define AOPT(_opt, _type, _name, _min, _desc) { \
|
|
.letter = _opt, \
|
|
.name = # _name, \
|
|
.type = _min == -1 ? OPT_STRPTR : \
|
|
(_min == -2 ? OPT_BOOL : \
|
|
(sizeof(_type) == 1 ? OPT_INT8 : \
|
|
(sizeof(_type) == 2 ? OPT_INT16 : \
|
|
(sizeof(_type) == 4 ? OPT_INT32 : OPT_INT64)))), \
|
|
.value = &msdos_opt->_name, \
|
|
.minimum = _min, \
|
|
.maximum = sizeof(_type) == 1 ? 0xff : \
|
|
(sizeof(_type) == 2 ? 0xffff : \
|
|
(sizeof(_type) == 4 ? 0xffffffff : 0xffffffffffffffffLL)), \
|
|
.desc = _desc, \
|
|
},
|
|
ALLOPTS
|
|
#undef AOPT
|
|
{ .name = NULL }
|
|
};
|
|
|
|
fsopts->fs_specific = msdos_opt;
|
|
fsopts->fs_options = copy_opts(msdos_options);
|
|
}
|
|
|
|
void
|
|
msdos_cleanup_opts(fsinfo_t *fsopts)
|
|
{
|
|
free(fsopts->fs_specific);
|
|
free(fsopts->fs_options);
|
|
}
|
|
|
|
int
|
|
msdos_parse_opts(const char *option, fsinfo_t *fsopts)
|
|
{
|
|
struct msdos_options *msdos_opt = fsopts->fs_specific;
|
|
option_t *msdos_options = fsopts->fs_options;
|
|
|
|
int rv;
|
|
|
|
assert(option != NULL);
|
|
assert(fsopts != NULL);
|
|
assert(msdos_opt != NULL);
|
|
|
|
if (debug & DEBUG_FS_PARSE_OPTS)
|
|
printf("msdos_parse_opts: got `%s'\n", option);
|
|
|
|
rv = set_option(msdos_options, option, NULL, 0);
|
|
if (rv == -1)
|
|
return rv;
|
|
|
|
if (strcmp(msdos_options[rv].name, "volume_id") == 0)
|
|
msdos_opt->volume_id_set = 1;
|
|
else if (strcmp(msdos_options[rv].name, "media_descriptor") == 0)
|
|
msdos_opt->media_descriptor_set = 1;
|
|
else if (strcmp(msdos_options[rv].name, "hidden_sectors") == 0)
|
|
msdos_opt->hidden_sectors_set = 1;
|
|
return 1;
|
|
}
|
|
|
|
|
|
void
|
|
msdos_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts)
|
|
{
|
|
struct msdos_options *msdos_opt = fsopts->fs_specific;
|
|
struct vnode vp, rootvp;
|
|
struct timeval start;
|
|
struct msdosfsmount *pmp;
|
|
|
|
assert(image != NULL);
|
|
assert(dir != NULL);
|
|
assert(root != NULL);
|
|
assert(fsopts != NULL);
|
|
|
|
/*
|
|
* XXX: pick up other options from the msdos specific ones?
|
|
* Is minsize right here?
|
|
*/
|
|
msdos_opt->create_size = MAX(msdos_opt->create_size, fsopts->minsize);
|
|
msdos_opt->offset = fsopts->offset;
|
|
if (msdos_opt->bytes_per_sector == 0) {
|
|
if (fsopts->sectorsize == -1)
|
|
fsopts->sectorsize = 512;
|
|
msdos_opt->bytes_per_sector = fsopts->sectorsize;
|
|
} else if (fsopts->sectorsize == -1) {
|
|
fsopts->sectorsize = msdos_opt->bytes_per_sector;
|
|
} else if (fsopts->sectorsize != msdos_opt->bytes_per_sector) {
|
|
err(1, "inconsistent sectorsize -S %u"
|
|
"!= -o bytes_per_sector %u",
|
|
fsopts->sectorsize, msdos_opt->bytes_per_sector);
|
|
}
|
|
|
|
/* create image */
|
|
printf("Creating `%s'\n", image);
|
|
TIMER_START(start);
|
|
if (mkfs_msdos(image, NULL, msdos_opt) == -1)
|
|
return;
|
|
TIMER_RESULTS(start, "mkfs_msdos");
|
|
|
|
fsopts->fd = open(image, O_RDWR);
|
|
vp.fs = fsopts;
|
|
|
|
if ((pmp = msdosfs_mount(&vp, 0)) == NULL)
|
|
err(1, "msdosfs_mount");
|
|
|
|
if (msdosfs_root(pmp, &rootvp) != 0)
|
|
err(1, "msdosfs_root");
|
|
|
|
if (debug & DEBUG_FS_MAKEFS)
|
|
printf("msdos_makefs: image %s directory %s root %p\n",
|
|
image, dir, root);
|
|
|
|
/* populate image */
|
|
printf("Populating `%s'\n", image);
|
|
TIMER_START(start);
|
|
if (msdos_populate_dir(dir, VTODE(&rootvp), root, root, fsopts) == -1)
|
|
errx(1, "Image file `%s' not created.", image);
|
|
TIMER_RESULTS(start, "msdos_populate_dir");
|
|
|
|
if (debug & DEBUG_FS_MAKEFS)
|
|
putchar('\n');
|
|
|
|
/* ensure no outstanding buffers remain */
|
|
if (debug & DEBUG_FS_MAKEFS)
|
|
bcleanup();
|
|
|
|
printf("Image `%s' complete\n", image);
|
|
}
|
|
|
|
static int
|
|
msdos_populate_dir(const char *path, struct denode *dir, fsnode *root,
|
|
fsnode *parent, fsinfo_t *fsopts)
|
|
{
|
|
fsnode *cur;
|
|
char pbuf[MAXPATHLEN];
|
|
|
|
assert(dir != NULL);
|
|
assert(root != NULL);
|
|
assert(fsopts != NULL);
|
|
|
|
for (cur = root->next; cur != NULL; cur = cur->next) {
|
|
if ((size_t)snprintf(pbuf, sizeof(pbuf), "%s/%s", path,
|
|
cur->name) >= sizeof(pbuf)) {
|
|
warnx("path %s too long", pbuf);
|
|
return -1;
|
|
}
|
|
|
|
if ((cur->inode->flags & FI_ALLOCATED) == 0) {
|
|
cur->inode->flags |= FI_ALLOCATED;
|
|
if (cur != root) {
|
|
fsopts->curinode++;
|
|
cur->inode->ino = fsopts->curinode;
|
|
cur->parent = parent;
|
|
}
|
|
}
|
|
|
|
if (cur->inode->flags & FI_WRITTEN) {
|
|
continue; // hard link
|
|
}
|
|
cur->inode->flags |= FI_WRITTEN;
|
|
|
|
if (cur->child) {
|
|
struct denode *de;
|
|
if ((de = msdosfs_mkdire(pbuf, dir, cur)) == NULL) {
|
|
warn("msdosfs_mkdire %s", pbuf);
|
|
return -1;
|
|
}
|
|
if (msdos_populate_dir(pbuf, de, cur->child, cur,
|
|
fsopts) == -1) {
|
|
warn("msdos_populate_dir %s", pbuf);
|
|
return -1;
|
|
}
|
|
continue;
|
|
} else if (!S_ISREG(cur->type)) {
|
|
warnx("skipping non-regular file %s/%s", cur->path,
|
|
cur->name);
|
|
continue;
|
|
}
|
|
if (msdosfs_mkfile(pbuf, dir, cur) == NULL) {
|
|
warn("msdosfs_mkfile %s", pbuf);
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|