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makefs.c revision 1.33 
      1 /*	$NetBSD: makefs.c,v 1.33 2012/04/19 17:09:53 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2001-2003 Wasabi Systems, Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Luke Mewburn for Wasabi Systems, Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *      This product includes software developed for the NetBSD Project by
     20  *      Wasabi Systems, Inc.
     21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22  *    or promote products derived from this software without specific prior
     23  *    written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 
     38 #if HAVE_NBTOOL_CONFIG_H
     39 #include "nbtool_config.h"
     40 #endif
     41 
     42 #include <sys/cdefs.h>
     43 #if defined(__RCSID) && !defined(__lint)
     44 __RCSID("$NetBSD: makefs.c,v 1.33 2012/04/19 17:09:53 christos Exp $");
     45 #endif	/* !__lint */
     46 
     47 #include <assert.h>
     48 #include <ctype.h>
     49 #include <errno.h>
     50 #include <limits.h>
     51 #include <stdio.h>
     52 #include <stdlib.h>
     53 #include <string.h>
     54 #include <unistd.h>
     55 
     56 #include "makefs.h"
     57 #include "mtree.h"
     58 #include "cd9660.h"
     59 
     60 /*
     61  * list of supported file systems and dispatch functions
     62  */
     63 typedef struct {
     64 	const char	*type;
     65 	void		(*prepare_options)(fsinfo_t *);
     66 	int		(*parse_options)(const char *, fsinfo_t *);
     67 	void		(*cleanup_options)(fsinfo_t *);
     68 	void		(*make_fs)(const char *, const char *, fsnode *,
     69 				fsinfo_t *);
     70 } fstype_t;
     71 
     72 static fstype_t fstypes[] = {
     73 	{ "ffs", ffs_prep_opts,	ffs_parse_opts,	ffs_cleanup_opts, ffs_makefs },
     74 	{ "cd9660", cd9660_prep_opts, cd9660_parse_opts, cd9660_cleanup_opts,
     75 	  cd9660_makefs},
     76 	{ "chfs", chfs_prep_opts, chfs_parse_opts, chfs_cleanup_opts,
     77 	  chfs_makefs },
     78 	{ "v7fs", v7fs_prep_opts, v7fs_parse_opts, v7fs_cleanup_opts,
     79 	  v7fs_makefs },
     80 	{ .type = NULL	},
     81 };
     82 
     83 u_int		debug;
     84 struct timespec	start_time;
     85 
     86 static	fstype_t *get_fstype(const char *);
     87 static	void	usage(void);
     88 int		main(int, char *[]);
     89 
     90 int
     91 main(int argc, char *argv[])
     92 {
     93 	struct timeval	 start;
     94 	fstype_t	*fstype;
     95 	fsinfo_t	 fsoptions;
     96 	fsnode		*root;
     97 	int	 	 ch, i, len;
     98 	char		*specfile;
     99 
    100 	setprogname(argv[0]);
    101 
    102 	debug = 0;
    103 	if ((fstype = get_fstype(DEFAULT_FSTYPE)) == NULL)
    104 		errx(1, "Unknown default fs type `%s'.", DEFAULT_FSTYPE);
    105 
    106 		/* set default fsoptions */
    107 	(void)memset(&fsoptions, 0, sizeof(fsoptions));
    108 	fsoptions.fd = -1;
    109 	fsoptions.sectorsize = -1;
    110 
    111 	if (fstype->prepare_options)
    112 		fstype->prepare_options(&fsoptions);
    113 
    114 	specfile = NULL;
    115 	if (gettimeofday(&start, NULL) == -1)
    116 		err(1, "Unable to get system time");
    117 
    118 	start_time.tv_sec = start.tv_sec;
    119 	start_time.tv_nsec = start.tv_usec * 1000;
    120 
    121 	while ((ch = getopt(argc, argv, "B:b:d:f:F:M:m:N:o:s:S:t:x")) != -1) {
    122 		switch (ch) {
    123 
    124 		case 'B':
    125 			if (strcmp(optarg, "be") == 0 ||
    126 			    strcmp(optarg, "4321") == 0 ||
    127 			    strcmp(optarg, "big") == 0) {
    128 #if BYTE_ORDER == LITTLE_ENDIAN
    129 				fsoptions.needswap = 1;
    130 #endif
    131 			} else if (strcmp(optarg, "le") == 0 ||
    132 			    strcmp(optarg, "1234") == 0 ||
    133 			    strcmp(optarg, "little") == 0) {
    134 #if BYTE_ORDER == BIG_ENDIAN
    135 				fsoptions.needswap = 1;
    136 #endif
    137 			} else {
    138 				warnx("Invalid endian `%s'.", optarg);
    139 				usage();
    140 			}
    141 			break;
    142 
    143 		case 'b':
    144 			len = strlen(optarg) - 1;
    145 			if (optarg[len] == '%') {
    146 				optarg[len] = '\0';
    147 				fsoptions.freeblockpc =
    148 				    strsuftoll("free block percentage",
    149 					optarg, 0, 99);
    150 			} else {
    151 				fsoptions.freeblocks =
    152 				    strsuftoll("free blocks",
    153 					optarg, 0, LLONG_MAX);
    154 			}
    155 			break;
    156 
    157 		case 'd':
    158 			debug = strtoll(optarg, NULL, 0);
    159 			break;
    160 
    161 		case 'f':
    162 			len = strlen(optarg) - 1;
    163 			if (optarg[len] == '%') {
    164 				optarg[len] = '\0';
    165 				fsoptions.freefilepc =
    166 				    strsuftoll("free file percentage",
    167 					optarg, 0, 99);
    168 			} else {
    169 				fsoptions.freefiles =
    170 				    strsuftoll("free files",
    171 					optarg, 0, LLONG_MAX);
    172 			}
    173 			break;
    174 
    175 		case 'F':
    176 			specfile = optarg;
    177 			break;
    178 
    179 		case 'M':
    180 			fsoptions.minsize =
    181 			    strsuftoll("minimum size", optarg, 1LL, LLONG_MAX);
    182 			break;
    183 
    184 		case 'N':
    185 			if (! setup_getid(optarg))
    186 				errx(1,
    187 			    "Unable to use user and group databases in `%s'",
    188 				    optarg);
    189 			break;
    190 
    191 		case 'm':
    192 			fsoptions.maxsize =
    193 			    strsuftoll("maximum size", optarg, 1LL, LLONG_MAX);
    194 			break;
    195 
    196 		case 'o':
    197 		{
    198 			char *p;
    199 
    200 			while ((p = strsep(&optarg, ",")) != NULL) {
    201 				if (*p == '\0')
    202 					errx(1, "Empty option");
    203 				if (! fstype->parse_options(p, &fsoptions))
    204 					usage();
    205 			}
    206 			break;
    207 		}
    208 
    209 		case 's':
    210 			fsoptions.minsize = fsoptions.maxsize =
    211 			    strsuftoll("size", optarg, 1LL, LLONG_MAX);
    212 			break;
    213 
    214 		case 'S':
    215 			fsoptions.sectorsize =
    216 			    (int)strsuftoll("sector size", optarg,
    217 				1LL, INT_MAX);
    218 			break;
    219 
    220 		case 't':
    221 			/* Check current one and cleanup if necessary. */
    222 			if (fstype->cleanup_options)
    223 				fstype->cleanup_options(&fsoptions);
    224 			fsoptions.fs_specific = NULL;
    225 			if ((fstype = get_fstype(optarg)) == NULL)
    226 				errx(1, "Unknown fs type `%s'.", optarg);
    227 			fstype->prepare_options(&fsoptions);
    228 			break;
    229 
    230 		case 'x':
    231 			fsoptions.onlyspec = 1;
    232 			break;
    233 
    234 		case '?':
    235 		default:
    236 			usage();
    237 			/* NOTREACHED */
    238 
    239 		}
    240 	}
    241 	if (debug) {
    242 		printf("debug mask: 0x%08x\n", debug);
    243 		printf("start time: %ld.%ld, %s",
    244 		    (long)start_time.tv_sec, (long)start_time.tv_nsec,
    245 		    ctime(&start_time.tv_sec));
    246 	}
    247 	argc -= optind;
    248 	argv += optind;
    249 
    250 	if (argc < 2)
    251 		usage();
    252 
    253 	/* -x must be accompanied by -F */
    254 	if (fsoptions.onlyspec != 0 && specfile == NULL)
    255 		errx(1, "-x requires -F mtree-specfile.");
    256 
    257 				/* walk the tree */
    258 	TIMER_START(start);
    259 	root = walk_dir(argv[1], ".", NULL, NULL);
    260 	TIMER_RESULTS(start, "walk_dir");
    261 
    262 	/* append extra directory */
    263 	for (i = 2; i < argc; i++) {
    264 		struct stat sb;
    265 		if (stat(argv[i], &sb) == -1)
    266 			err(1, "Can't stat `%s'", argv[i]);
    267 		if (!S_ISDIR(sb.st_mode))
    268 			errx(1, "%s: not a directory", argv[i]);
    269 		TIMER_START(start);
    270 		root = walk_dir(argv[i], ".", NULL, root);
    271 		TIMER_RESULTS(start, "walk_dir2");
    272 	}
    273 
    274 	if (specfile) {		/* apply a specfile */
    275 		TIMER_START(start);
    276 		apply_specfile(specfile, argv[1], root, fsoptions.onlyspec);
    277 		TIMER_RESULTS(start, "apply_specfile");
    278 	}
    279 
    280 	if (debug & DEBUG_DUMP_FSNODES) {
    281 		printf("\nparent: %s\n", argv[1]);
    282 		dump_fsnodes(root);
    283 		putchar('\n');
    284 	}
    285 
    286 				/* build the file system */
    287 	TIMER_START(start);
    288 	fstype->make_fs(argv[0], argv[1], root, &fsoptions);
    289 	TIMER_RESULTS(start, "make_fs");
    290 
    291 	free_fsnodes(root);
    292 
    293 	exit(0);
    294 	/* NOTREACHED */
    295 }
    296 
    297 
    298 int
    299 set_option(const option_t *options, const char *var, const char *val)
    300 {
    301 	int	i;
    302 
    303 	for (i = 0; options[i].name != NULL; i++) {
    304 		if (strcmp(options[i].name, var) != 0)
    305 			continue;
    306 		*options[i].value = (int)strsuftoll(options[i].desc, val,
    307 		    options[i].minimum, options[i].maximum);
    308 		return (1);
    309 	}
    310 	warnx("Unknown option `%s'", var);
    311 	return (0);
    312 }
    313 
    314 
    315 static fstype_t *
    316 get_fstype(const char *type)
    317 {
    318 	int i;
    319 
    320 	for (i = 0; fstypes[i].type != NULL; i++)
    321 		if (strcmp(fstypes[i].type, type) == 0)
    322 			return (&fstypes[i]);
    323 	return (NULL);
    324 }
    325 
    326 static void
    327 usage(void)
    328 {
    329 	const char *prog;
    330 
    331 	prog = getprogname();
    332 	fprintf(stderr,
    333 "usage: %s [-x] [-B endian] [-b free-blocks] [-d debug-mask]\n"
    334 "\t[-F mtree-specfile] [-f free-files] [-M minimum-size]\n"
    335 "\t[-m maximum-size] [-N userdb-dir] [-o fs-options] [-S sector-size]\n"
    336 "\t[-s image-size] [-t fs-type] image-file directory [extra-directory ...]\n",
    337 	    prog);
    338 	exit(1);
    339 }
    340