usr.sbin/makefs/makefs.c

   1 /*      $NetBSD: makefs.c,v 1.26 2006/10/22 21:11:56 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 #include <sys/cdefs.h>
  39 __FBSDID("$FreeBSD$");
  40
  41 #include <assert.h>
  42 #include <ctype.h>
  43 #include <errno.h>
  44 #include <limits.h>
  45 #include <stdio.h>
  46 #include <stdlib.h>
  47 #include <string.h>
  48 #include <unistd.h>
  49
  50 #include "makefs.h"
  51 #include "mtree.h"
  52
  53 /*
  54  * list of supported file systems and dispatch functions
  55  */
  56 typedef struct {
  57         const char      *type;
  58         void            (*prepare_options)(fsinfo_t *);
  59         int             (*parse_options)(const char *, fsinfo_t *);
  60         void            (*cleanup_options)(fsinfo_t *);
  61         void            (*make_fs)(const char *, const char *, fsnode *,
  62                                 fsinfo_t *);
  63 } fstype_t;
  64
  65 static fstype_t fstypes[] = {
  66         { "ffs", ffs_prep_opts, ffs_parse_opts, ffs_cleanup_opts, ffs_makefs },
  67         { "cd9660", cd9660_prep_opts, cd9660_parse_opts, cd9660_cleanup_opts,
  68           cd9660_makefs},
  69         { .type = NULL  },
  70 };
  71
  72 u_int           debug;
  73 struct timespec start_time;
  74
  75 static  fstype_t *get_fstype(const char *);
  76 static  void    usage(void);
  77 int             main(int, char *[]);
  78
  79 int
  80 main(int argc, char *argv[])
  81 {
  82         struct timeval   start;
  83         fstype_t        *fstype;
  84         fsinfo_t         fsoptions;
  85         fsnode          *root;
  86         int              ch, len;
  87         char            *specfile;
  88
  89         setprogname(argv[0]);
  90
  91         debug = 0;
  92         if ((fstype = get_fstype(DEFAULT_FSTYPE)) == NULL)
  93                 errx(1, "Unknown default fs type `%s'.", DEFAULT_FSTYPE);
  94
  95                 /* set default fsoptions */
  96         (void)memset(&fsoptions, 0, sizeof(fsoptions));
  97         fsoptions.fd = -1;
  98         fsoptions.sectorsize = -1;
  99
 100         if (fstype->prepare_options)
 101                 fstype->prepare_options(&fsoptions);
 102
 103         specfile = NULL;
 104         if (gettimeofday(&start, NULL) == -1)
 105                 err(1, "Unable to get system time");
 106
 107         start_time.tv_sec = start.tv_sec;
 108         start_time.tv_nsec = start.tv_usec * 1000;
 109
 110         while ((ch = getopt(argc, argv, "B:b:d:f:F:M:m:N:o:s:S:t:x")) != -1) {
 111                 switch (ch) {
 112
 113                 case 'B':
 114                         if (strcmp(optarg, "be") == 0 ||
 115                             strcmp(optarg, "4321") == 0 ||
 116                             strcmp(optarg, "big") == 0) {
 117 #if BYTE_ORDER == LITTLE_ENDIAN
 118                                 fsoptions.needswap = 1;
 119 #endif
 120                         } else if (strcmp(optarg, "le") == 0 ||
 121                             strcmp(optarg, "1234") == 0 ||
 122                             strcmp(optarg, "little") == 0) {
 123 #if BYTE_ORDER == BIG_ENDIAN
 124                                 fsoptions.needswap = 1;
 125 #endif
 126                         } else {
 127                                 warnx("Invalid endian `%s'.", optarg);
 128                                 usage();
 129                         }
 130                         break;
 131
 132                 case 'b':
 133                         len = strlen(optarg) - 1;
 134                         if (optarg[len] == '%') {
 135                                 optarg[len] = '\0';
 136                                 fsoptions.freeblockpc =
 137                                     strsuftoll("free block percentage",
 138                                         optarg, 0, 99);
 139                         } else {
 140                                 fsoptions.freeblocks =
 141                                     strsuftoll("free blocks",
 142                                         optarg, 0, LLONG_MAX);
 143                         }
 144                         break;
 145
 146                 case 'd':
 147                         debug = strtoll(optarg, NULL, 0);
 148                         break;
 149
 150                 case 'f':
 151                         len = strlen(optarg) - 1;
 152                         if (optarg[len] == '%') {
 153                                 optarg[len] = '\0';
 154                                 fsoptions.freefilepc =
 155                                     strsuftoll("free file percentage",
 156                                         optarg, 0, 99);
 157                         } else {
 158                                 fsoptions.freefiles =
 159                                     strsuftoll("free files",
 160                                         optarg, 0, LLONG_MAX);
 161                         }
 162                         break;
 163
 164                 case 'F':
 165                         specfile = optarg;
 166                         break;
 167
 168                 case 'M':
 169                         fsoptions.minsize =
 170                             strsuftoll("minimum size", optarg, 1LL, LLONG_MAX);
 171                         break;
 172
 173                 case 'N':
 174                         if (! setup_getid(optarg))
 175                                 errx(1,
 176                             "Unable to use user and group databases in `%s'",
 177                                     optarg);
 178                         break;
 179
 180                 case 'm':
 181                         fsoptions.maxsize =
 182                             strsuftoll("maximum size", optarg, 1LL, LLONG_MAX);
 183                         break;
 184
 185                 case 'o':
 186                 {
 187                         char *p;
 188
 189                         while ((p = strsep(&optarg, ",")) != NULL) {
 190                                 if (*p == '\0')
 191                                         errx(1, "Empty option");
 192                                 if (! fstype->parse_options(p, &fsoptions))
 193                                         usage();
 194                         }
 195                         break;
 196                 }
 197
 198                 case 's':
 199                         fsoptions.minsize = fsoptions.maxsize =
 200                             strsuftoll("size", optarg, 1LL, LLONG_MAX);
 201                         break;
 202
 203                 case 'S':
 204                         fsoptions.sectorsize =
 205                             (int)strsuftoll("sector size", optarg,
 206                                 1LL, INT_MAX);
 207                         break;
 208
 209                 case 't':
 210                         /* Check current one and cleanup if necessary. */
 211                         if (fstype->cleanup_options)
 212                                 fstype->cleanup_options(&fsoptions);
 213                         fsoptions.fs_specific = NULL;
 214                         if ((fstype = get_fstype(optarg)) == NULL)
 215                                 errx(1, "Unknown fs type `%s'.", optarg);
 216                         fstype->prepare_options(&fsoptions);
 217                         break;
 218
 219                 case 'x':
 220                         fsoptions.onlyspec = 1;
 221                         break;
 222
 223                 case '?':
 224                 default:
 225                         usage();
 226                         /* NOTREACHED */
 227
 228                 }
 229         }
 230         if (debug) {
 231                 printf("debug mask: 0x%08x\n", debug);
 232                 printf("start time: %ld.%ld, %s",
 233                     (long)start_time.tv_sec, (long)start_time.tv_nsec,
 234                     ctime(&start_time.tv_sec));
 235         }
 236         argc -= optind;
 237         argv += optind;
 238
 239         if (argc != 2)
 240                 usage();
 241
 242         /* -x must be accompanied by -F */
 243         if (fsoptions.onlyspec != 0 && specfile == NULL)
 244                 errx(1, "-x requires -F mtree-specfile.");
 245
 246                                 /* walk the tree */
 247         TIMER_START(start);
 248         root = walk_dir(argv[1], NULL);
 249         TIMER_RESULTS(start, "walk_dir");
 250
 251         if (specfile) {         /* apply a specfile */
 252                 TIMER_START(start);
 253                 apply_specfile(specfile, argv[1], root, fsoptions.onlyspec);
 254                 TIMER_RESULTS(start, "apply_specfile");
 255         }
 256
 257         if (debug & DEBUG_DUMP_FSNODES) {
 258                 printf("\nparent: %s\n", argv[1]);
 259                 dump_fsnodes(".", root);
 260                 putchar('\n');
 261         }
 262
 263                                 /* build the file system */
 264         TIMER_START(start);
 265         fstype->make_fs(argv[0], argv[1], root, &fsoptions);
 266         TIMER_RESULTS(start, "make_fs");
 267
 268         free_fsnodes(root);
 269
 270         exit(0);
 271         /* NOTREACHED */
 272 }
 273
 274
 275 int
 276 set_option(option_t *options, const char *var, const char *val)
 277 {
 278         int     i;
 279
 280         for (i = 0; options[i].name != NULL; i++) {
 281                 if (strcmp(options[i].name, var) != 0)
 282                         continue;
 283                 *options[i].value = (int)strsuftoll(options[i].desc, val,
 284                     options[i].minimum, options[i].maximum);
 285                 return (1);
 286         }
 287         warnx("Unknown option `%s'", var);
 288         return (0);
 289 }
 290
 291
 292 static fstype_t *
 293 get_fstype(const char *type)
 294 {
 295         int i;
 296
 297         for (i = 0; fstypes[i].type != NULL; i++)
 298                 if (strcmp(fstypes[i].type, type) == 0)
 299                         return (&fstypes[i]);
 300         return (NULL);
 301 }
 302
 303 static void
 304 usage(void)
 305 {
 306         const char *prog;
 307
 308         prog = getprogname();
 309         fprintf(stderr,
 310 "usage: %s [-t fs-type] [-o fs-options] [-d debug-mask] [-B endian]\n"
 311 "\t[-S sector-size] [-M minimum-size] [-m maximum-size] [-s image-size]\n"
 312 "\t[-b free-blocks] [-f free-files] [-F mtree-specfile] [-x]\n"
 313 "\t[-N userdb-dir] image-file directory\n",
 314             prog);
 315         exit(1);
 316 }