freebsd-dev/usr.sbin/makefs/makefs.c
Ed Maste 98dc8da58c makefs: add msdosfs (FAT) support
Add FAT support to makefs by copying some files from sys/fs/msdosfs/ and
updating others with changes from NetBSD.

The six files copied from sys/fs/msdosfs at r348251 and modified are:
denode.h direntry.h fat.h msdosfs_fat.c msdosfs_lookup.c msdosfsmount.h

I would prefer to avoid the duplication, but reluctance to doing so was
expressed in a previous review (D11197); for now copy the files and
revisit in the future.

Submitted by:	Siva Mahadevan
Discussed with:	cem, imp
MFC after:	1 month
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D16438
2019-08-20 18:20:45 +00:00

508 lines
12 KiB
C

/* $NetBSD: makefs.c,v 1.26 2006/10/22 21:11:56 christos Exp $ */
/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* Copyright (c) 2001-2003 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Luke Mewburn for Wasabi Systems, Inc.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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/stat.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <stdbool.h>
#include <util.h>
#include "makefs.h"
#include "mtree.h"
/*
* list of supported file systems and dispatch functions
*/
typedef struct {
const char *type;
void (*prepare_options)(fsinfo_t *);
int (*parse_options)(const char *, fsinfo_t *);
void (*cleanup_options)(fsinfo_t *);
void (*make_fs)(const char *, const char *, fsnode *,
fsinfo_t *);
} fstype_t;
static fstype_t fstypes[] = {
#define ENTRY(name) { \
# name, name ## _prep_opts, name ## _parse_opts, \
name ## _cleanup_opts, name ## _makefs \
}
ENTRY(cd9660),
ENTRY(ffs),
ENTRY(msdos),
{ .type = NULL },
};
u_int debug;
int dupsok;
struct timespec start_time;
struct stat stampst;
static fstype_t *get_fstype(const char *);
static int get_tstamp(const char *, struct stat *);
static void usage(fstype_t *, fsinfo_t *);
int
main(int argc, char *argv[])
{
struct stat sb;
struct timeval start;
fstype_t *fstype;
fsinfo_t fsoptions;
fsnode *root;
int ch, i, len;
const char *subtree;
const char *specfile;
setprogname(argv[0]);
debug = 0;
if ((fstype = get_fstype(DEFAULT_FSTYPE)) == NULL)
errx(1, "Unknown default fs type `%s'.", DEFAULT_FSTYPE);
/* set default fsoptions */
(void)memset(&fsoptions, 0, sizeof(fsoptions));
fsoptions.fd = -1;
fsoptions.sectorsize = -1;
if (fstype->prepare_options)
fstype->prepare_options(&fsoptions);
specfile = NULL;
#ifdef CLOCK_REALTIME
ch = clock_gettime(CLOCK_REALTIME, &start_time);
#else
ch = gettimeofday(&start, NULL);
start_time.tv_sec = start.tv_sec;
start_time.tv_nsec = start.tv_usec * 1000;
#endif
if (ch == -1)
err(1, "Unable to get system time");
while ((ch = getopt(argc, argv, "B:b:Dd:f:F:M:m:N:O:o:pR:s:S:t:T:xZ")) != -1) {
switch (ch) {
case 'B':
if (strcmp(optarg, "be") == 0 ||
strcmp(optarg, "4321") == 0 ||
strcmp(optarg, "big") == 0) {
#if BYTE_ORDER == LITTLE_ENDIAN
fsoptions.needswap = 1;
#endif
} else if (strcmp(optarg, "le") == 0 ||
strcmp(optarg, "1234") == 0 ||
strcmp(optarg, "little") == 0) {
#if BYTE_ORDER == BIG_ENDIAN
fsoptions.needswap = 1;
#endif
} else {
warnx("Invalid endian `%s'.", optarg);
usage(fstype, &fsoptions);
}
break;
case 'b':
len = strlen(optarg) - 1;
if (optarg[len] == '%') {
optarg[len] = '\0';
fsoptions.freeblockpc =
strsuftoll("free block percentage",
optarg, 0, 99);
} else {
fsoptions.freeblocks =
strsuftoll("free blocks",
optarg, 0, LLONG_MAX);
}
break;
case 'D':
dupsok = 1;
break;
case 'd':
debug = strtoll(optarg, NULL, 0);
break;
case 'f':
len = strlen(optarg) - 1;
if (optarg[len] == '%') {
optarg[len] = '\0';
fsoptions.freefilepc =
strsuftoll("free file percentage",
optarg, 0, 99);
} else {
fsoptions.freefiles =
strsuftoll("free files",
optarg, 0, LLONG_MAX);
}
break;
case 'F':
specfile = optarg;
break;
case 'M':
fsoptions.minsize =
strsuftoll("minimum size", optarg, 1LL, LLONG_MAX);
break;
case 'N':
if (! setup_getid(optarg))
errx(1,
"Unable to use user and group databases in `%s'",
optarg);
break;
case 'm':
fsoptions.maxsize =
strsuftoll("maximum size", optarg, 1LL, LLONG_MAX);
break;
case 'O':
fsoptions.offset =
strsuftoll("offset", optarg, 0LL, LLONG_MAX);
break;
case 'o':
{
char *p;
while ((p = strsep(&optarg, ",")) != NULL) {
if (*p == '\0')
errx(1, "Empty option");
if (! fstype->parse_options(p, &fsoptions))
usage(fstype, &fsoptions);
}
break;
}
case 'p':
/* Deprecated in favor of 'Z' */
fsoptions.sparse = 1;
break;
case 'R':
/* Round image size up to specified block size */
fsoptions.roundup =
strsuftoll("roundup-size", optarg, 0, LLONG_MAX);
break;
case 's':
fsoptions.minsize = fsoptions.maxsize =
strsuftoll("size", optarg, 1LL, LLONG_MAX);
break;
case 'S':
fsoptions.sectorsize =
(int)strsuftoll("sector size", optarg,
1LL, INT_MAX);
break;
case 't':
/* Check current one and cleanup if necessary. */
if (fstype->cleanup_options)
fstype->cleanup_options(&fsoptions);
fsoptions.fs_specific = NULL;
if ((fstype = get_fstype(optarg)) == NULL)
errx(1, "Unknown fs type `%s'.", optarg);
fstype->prepare_options(&fsoptions);
break;
case 'T':
if (get_tstamp(optarg, &stampst) == -1)
errx(1, "Cannot get timestamp from `%s'",
optarg);
break;
case 'x':
fsoptions.onlyspec = 1;
break;
case 'Z':
/* Superscedes 'p' for compatibility with NetBSD makefs(8) */
fsoptions.sparse = 1;
break;
case '?':
default:
usage(fstype, &fsoptions);
/* NOTREACHED */
}
}
if (debug) {
printf("debug mask: 0x%08x\n", debug);
printf("start time: %ld.%ld, %s",
(long)start_time.tv_sec, (long)start_time.tv_nsec,
ctime(&start_time.tv_sec));
}
argc -= optind;
argv += optind;
if (argc < 2)
usage(fstype, &fsoptions);
/* -x must be accompanied by -F */
if (fsoptions.onlyspec != 0 && specfile == NULL)
errx(1, "-x requires -F mtree-specfile.");
/* Accept '-' as meaning "read from standard input". */
if (strcmp(argv[1], "-") == 0)
sb.st_mode = S_IFREG;
else {
if (stat(argv[1], &sb) == -1)
err(1, "Can't stat `%s'", argv[1]);
}
switch (sb.st_mode & S_IFMT) {
case S_IFDIR: /* walk the tree */
subtree = argv[1];
TIMER_START(start);
root = walk_dir(subtree, ".", NULL, NULL);
TIMER_RESULTS(start, "walk_dir");
break;
case S_IFREG: /* read the manifest file */
subtree = ".";
TIMER_START(start);
root = read_mtree(argv[1], NULL);
TIMER_RESULTS(start, "manifest");
break;
default:
errx(1, "%s: not a file or directory", argv[1]);
/* NOTREACHED */
}
/* append extra directory */
for (i = 2; i < argc; i++) {
if (stat(argv[i], &sb) == -1)
err(1, "Can't stat `%s'", argv[i]);
if (!S_ISDIR(sb.st_mode))
errx(1, "%s: not a directory", argv[i]);
TIMER_START(start);
root = walk_dir(argv[i], ".", NULL, root);
TIMER_RESULTS(start, "walk_dir2");
}
if (specfile) { /* apply a specfile */
TIMER_START(start);
apply_specfile(specfile, subtree, root, fsoptions.onlyspec);
TIMER_RESULTS(start, "apply_specfile");
}
if (debug & DEBUG_DUMP_FSNODES) {
printf("\nparent: %s\n", subtree);
dump_fsnodes(root);
putchar('\n');
}
/* build the file system */
TIMER_START(start);
fstype->make_fs(argv[0], subtree, root, &fsoptions);
TIMER_RESULTS(start, "make_fs");
free_fsnodes(root);
exit(0);
/* NOTREACHED */
}
int
set_option(const option_t *options, const char *option, char *buf, size_t len)
{
char *var, *val;
int retval;
assert(option != NULL);
var = estrdup(option);
for (val = var; *val; val++)
if (*val == '=') {
*val++ = '\0';
break;
}
retval = set_option_var(options, var, val, buf, len);
free(var);
return retval;
}
int
set_option_var(const option_t *options, const char *var, const char *val,
char *buf, size_t len)
{
char *s;
size_t i;
#define NUM(type) \
if (!*val) { \
*(type *)options[i].value = 1; \
break; \
} \
*(type *)options[i].value = (type)strsuftoll(options[i].desc, val, \
options[i].minimum, options[i].maximum); break
for (i = 0; options[i].name != NULL; i++) {
if (var[1] == '\0') {
if (options[i].letter != var[0])
continue;
} else if (strcmp(options[i].name, var) != 0)
continue;
switch (options[i].type) {
case OPT_BOOL:
*(bool *)options[i].value = 1;
break;
case OPT_STRARRAY:
strlcpy((void *)options[i].value, val, (size_t)
options[i].maximum);
break;
case OPT_STRPTR:
s = estrdup(val);
*(char **)options[i].value = s;
break;
case OPT_STRBUF:
if (buf == NULL)
abort();
strlcpy(buf, val, len);
break;
case OPT_INT64:
NUM(uint64_t);
case OPT_INT32:
NUM(uint32_t);
case OPT_INT16:
NUM(uint16_t);
case OPT_INT8:
NUM(uint8_t);
default:
warnx("Unknown type %d in option %s", options[i].type,
val);
return 0;
}
return i;
}
warnx("Unknown option `%s'", var);
return -1;
}
static fstype_t *
get_fstype(const char *type)
{
int i;
for (i = 0; fstypes[i].type != NULL; i++)
if (strcmp(fstypes[i].type, type) == 0)
return (&fstypes[i]);
return (NULL);
}
option_t *
copy_opts(const option_t *o)
{
size_t i;
for (i = 0; o[i].name; i++)
continue;
i++;
return memcpy(ecalloc(i, sizeof(*o)), o, i * sizeof(*o));
}
static int
get_tstamp(const char *b, struct stat *st)
{
time_t when;
char *eb;
long long l;
if (stat(b, st) != -1)
return 0;
{
errno = 0;
l = strtoll(b, &eb, 0);
if (b == eb || *eb || errno)
return -1;
when = (time_t)l;
}
st->st_ino = 1;
#ifdef HAVE_STRUCT_STAT_BIRTHTIME
st->st_birthtime =
#endif
st->st_mtime = st->st_ctime = st->st_atime = when;
return 0;
}
static void
usage(fstype_t *fstype, fsinfo_t *fsoptions)
{
const char *prog;
prog = getprogname();
fprintf(stderr,
"Usage: %s [-xZ] [-B endian] [-b free-blocks] [-d debug-mask]\n"
"\t[-F mtree-specfile] [-f free-files] [-M minimum-size] [-m maximum-size]\n"
"\t[-N userdb-dir] [-O offset] [-o fs-options] [-R roundup-size]\n"
"\t[-S sector-size] [-s image-size] [-T <timestamp/file>] [-t fs-type]\n"
"\timage-file directory | manifest [extra-directory ...]\n",
prog);
if (fstype) {
size_t i;
option_t *o = fsoptions->fs_options;
fprintf(stderr, "\n%s specific options:\n", fstype->type);
for (i = 0; o[i].name != NULL; i++)
fprintf(stderr, "\t%c%c%20.20s\t%s\n",
o[i].letter ? o[i].letter : ' ',
o[i].letter ? ',' : ' ',
o[i].name, o[i].desc);
}
exit(1);
}