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 <sys/types.h>
  42 #include <sys/stat.h>
  43 #include <assert.h>
  44 #include <ctype.h>
  45 #include <errno.h>
  46 #include <limits.h>
  47 #include <stdio.h>
  48 #include <stdlib.h>
  49 #include <string.h>
  50 #include <time.h>
  51 #include <unistd.h>
  52
  53 #include "makefs.h"
  54 #include "mtree.h"
  55
  56 /*
  57  * list of supported file systems and dispatch functions
  58  */
  59 typedef struct {
  60         const char      *type;
  61         void            (*prepare_options)(fsinfo_t *);
  62         int             (*parse_options)(const char *, fsinfo_t *);
  63         void            (*cleanup_options)(fsinfo_t *);
  64         void            (*make_fs)(const char *, const char *, fsnode *,
  65                                 fsinfo_t *);
  66 } fstype_t;
  67
  68 static fstype_t fstypes[] = {
  69         { "ffs", ffs_prep_opts, ffs_parse_opts, ffs_cleanup_opts, ffs_makefs },
  70         { "cd9660", cd9660_prep_opts, cd9660_parse_opts, cd9660_cleanup_opts,
  71           cd9660_makefs},
  72         { .type = NULL  },
  73 };
  74
  75 u_int           debug;
  76 int             dupsok;
  77 struct timespec start_time;
  78
  79 static  fstype_t *get_fstype(const char *);
  80 static  void    usage(void);
  81 int             main(int, char *[]);
  82
  83 int
  84 main(int argc, char *argv[])
  85 {
  86         struct stat      sb;
  87         struct timeval   start;
  88         fstype_t        *fstype;
  89         fsinfo_t         fsoptions;
  90         fsnode          *root;
  91         int              ch, i, len;
  92         char            *subtree;
  93         char            *specfile;
  94
  95         setprogname(argv[0]);
  96
  97         debug = 0;
  98         if ((fstype = get_fstype(DEFAULT_FSTYPE)) == NULL)
  99                 errx(1, "Unknown default fs type `%s'.", DEFAULT_FSTYPE);
 100
 101                 /* set default fsoptions */
 102         (void)memset(&fsoptions, 0, sizeof(fsoptions));
 103         fsoptions.fd = -1;
 104         fsoptions.sectorsize = -1;
 105
 106         if (fstype->prepare_options)
 107                 fstype->prepare_options(&fsoptions);
 108
 109         specfile = NULL;
 110         if (gettimeofday(&start, NULL) == -1)
 111                 err(1, "Unable to get system time");
 112
 113         start_time.tv_sec = start.tv_sec;
 114         start_time.tv_nsec = start.tv_usec * 1000;
 115
 116         while ((ch = getopt(argc, argv, "B:b:Dd:f:F:M:m:N:o:ps:S:t:xZ")) != -1) {
 117                 switch (ch) {
 118
 119                 case 'B':
 120                         if (strcmp(optarg, "be") == 0 ||
 121                             strcmp(optarg, "4321") == 0 ||
 122                             strcmp(optarg, "big") == 0) {
 123 #if BYTE_ORDER == LITTLE_ENDIAN
 124                                 fsoptions.needswap = 1;
 125 #endif
 126                         } else if (strcmp(optarg, "le") == 0 ||
 127                             strcmp(optarg, "1234") == 0 ||
 128                             strcmp(optarg, "little") == 0) {
 129 #if BYTE_ORDER == BIG_ENDIAN
 130                                 fsoptions.needswap = 1;
 131 #endif
 132                         } else {
 133                                 warnx("Invalid endian `%s'.", optarg);
 134                                 usage();
 135                         }
 136                         break;
 137
 138                 case 'b':
 139                         len = strlen(optarg) - 1;
 140                         if (optarg[len] == '%') {
 141                                 optarg[len] = '\0';
 142                                 fsoptions.freeblockpc =
 143                                     strsuftoll("free block percentage",
 144                                         optarg, 0, 99);
 145                         } else {
 146                                 fsoptions.freeblocks =
 147                                     strsuftoll("free blocks",
 148                                         optarg, 0, LLONG_MAX);
 149                         }
 150                         break;
 151
 152                 case 'D':
 153                         dupsok = 1;
 154                         break;
 155
 156                 case 'd':
 157                         debug = strtoll(optarg, NULL, 0);
 158                         break;
 159
 160                 case 'f':
 161                         len = strlen(optarg) - 1;
 162                         if (optarg[len] == '%') {
 163                                 optarg[len] = '\0';
 164                                 fsoptions.freefilepc =
 165                                     strsuftoll("free file percentage",
 166                                         optarg, 0, 99);
 167                         } else {
 168                                 fsoptions.freefiles =
 169                                     strsuftoll("free files",
 170                                         optarg, 0, LLONG_MAX);
 171                         }
 172                         break;
 173
 174                 case 'F':
 175                         specfile = optarg;
 176                         break;
 177
 178                 case 'M':
 179                         fsoptions.minsize =
 180                             strsuftoll("minimum size", optarg, 1LL, LLONG_MAX);
 181                         break;
 182
 183                 case 'N':
 184                         if (! setup_getid(optarg))
 185                                 errx(1,
 186                             "Unable to use user and group databases in `%s'",
 187                                     optarg);
 188                         break;
 189
 190                 case 'm':
 191                         fsoptions.maxsize =
 192                             strsuftoll("maximum size", optarg, 1LL, LLONG_MAX);
 193                         break;
 194
 195                 case 'o':
 196                 {
 197                         char *p;
 198
 199                         while ((p = strsep(&optarg, ",")) != NULL) {
 200                                 if (*p == '\0')
 201                                         errx(1, "Empty option");
 202                                 if (! fstype->parse_options(p, &fsoptions))
 203                                         usage();
 204                         }
 205                         break;
 206                 }
 207                 case 'p':
 208                         /* Deprecated in favor of 'Z' */
 209                         fsoptions.sparse = 1;
 210                         break;
 211
 212                 case 's':
 213                         fsoptions.minsize = fsoptions.maxsize =
 214                             strsuftoll("size", optarg, 1LL, LLONG_MAX);
 215                         break;
 216
 217                 case 'S':
 218                         fsoptions.sectorsize =
 219                             (int)strsuftoll("sector size", optarg,
 220                                 1LL, INT_MAX);
 221                         break;
 222
 223                 case 't':
 224                         /* Check current one and cleanup if necessary. */
 225                         if (fstype->cleanup_options)
 226                                 fstype->cleanup_options(&fsoptions);
 227                         fsoptions.fs_specific = NULL;
 228                         if ((fstype = get_fstype(optarg)) == NULL)
 229                                 errx(1, "Unknown fs type `%s'.", optarg);
 230                         fstype->prepare_options(&fsoptions);
 231                         break;
 232
 233                 case 'x':
 234                         fsoptions.onlyspec = 1;
 235                         break;
 236
 237                 case 'Z':
 238                         /* Superscedes 'p' for compatibility with NetBSD makefs(8) */
 239                         fsoptions.sparse = 1;
 240                         break;
 241
 242                 case '?':
 243                 default:
 244                         usage();
 245                         /* NOTREACHED */
 246
 247                 }
 248         }
 249         if (debug) {
 250                 printf("debug mask: 0x%08x\n", debug);
 251                 printf("start time: %ld.%ld, %s",
 252                     (long)start_time.tv_sec, (long)start_time.tv_nsec,
 253                     ctime(&start_time.tv_sec));
 254         }
 255         argc -= optind;
 256         argv += optind;
 257
 258         if (argc < 2)
 259                 usage();
 260
 261         /* -x must be accompanied by -F */
 262         if (fsoptions.onlyspec != 0 && specfile == NULL)
 263                 errx(1, "-x requires -F mtree-specfile.");
 264
 265         /* Accept '-' as meaning "read from standard input". */
 266         if (strcmp(argv[1], "-") == 0)
 267                 sb.st_mode = S_IFREG;
 268         else {
 269                 if (stat(argv[1], &sb) == -1)
 270                         err(1, "Can't stat `%s'", argv[1]);
 271         }
 272
 273         switch (sb.st_mode & S_IFMT) {
 274         case S_IFDIR:           /* walk the tree */
 275                 subtree = argv[1];
 276                 TIMER_START(start);
 277                 root = walk_dir(subtree, ".", NULL, NULL);
 278                 TIMER_RESULTS(start, "walk_dir");
 279                 break;
 280         case S_IFREG:           /* read the manifest file */
 281                 subtree = ".";
 282                 TIMER_START(start);
 283                 root = read_mtree(argv[1], NULL);
 284                 TIMER_RESULTS(start, "manifest");
 285                 break;
 286         default:
 287                 errx(1, "%s: not a file or directory", argv[1]);
 288                 /* NOTREACHED */
 289         }
 290
 291         /* append extra directory */
 292         for (i = 2; i < argc; i++) {
 293                 if (stat(argv[i], &sb) == -1)
 294                         err(1, "Can't stat `%s'", argv[i]);
 295                 if (!S_ISDIR(sb.st_mode))
 296                         errx(1, "%s: not a directory", argv[i]);
 297                 TIMER_START(start);
 298                 root = walk_dir(argv[i], ".", NULL, root);
 299                 TIMER_RESULTS(start, "walk_dir2");
 300         }
 301
 302         if (specfile) {         /* apply a specfile */
 303                 TIMER_START(start);
 304                 apply_specfile(specfile, subtree, root, fsoptions.onlyspec);
 305                 TIMER_RESULTS(start, "apply_specfile");
 306         }
 307
 308         if (debug & DEBUG_DUMP_FSNODES) {
 309                 printf("\nparent: %s\n", subtree);
 310                 dump_fsnodes(root);
 311                 putchar('\n');
 312         }
 313
 314                                 /* build the file system */
 315         TIMER_START(start);
 316         fstype->make_fs(argv[0], subtree, root, &fsoptions);
 317         TIMER_RESULTS(start, "make_fs");
 318
 319         free_fsnodes(root);
 320
 321         exit(0);
 322         /* NOTREACHED */
 323 }
 324
 325
 326 int
 327 set_option(option_t *options, const char *var, const char *val)
 328 {
 329         int     i;
 330
 331         for (i = 0; options[i].name != NULL; i++) {
 332                 if (strcmp(options[i].name, var) != 0)
 333                         continue;
 334                 *options[i].value = (int)strsuftoll(options[i].desc, val,
 335                     options[i].minimum, options[i].maximum);
 336                 return (1);
 337         }
 338         warnx("Unknown option `%s'", var);
 339         return (0);
 340 }
 341
 342
 343 static fstype_t *
 344 get_fstype(const char *type)
 345 {
 346         int i;
 347
 348         for (i = 0; fstypes[i].type != NULL; i++)
 349                 if (strcmp(fstypes[i].type, type) == 0)
 350                         return (&fstypes[i]);
 351         return (NULL);
 352 }
 353
 354 static void
 355 usage(void)
 356 {
 357         const char *prog;
 358
 359         prog = getprogname();
 360         fprintf(stderr,
 361 "usage: %s [-t fs-type] [-o fs-options] [-d debug-mask] [-B endian]\n"
 362 "\t[-S sector-size] [-M minimum-size] [-m maximum-size] [-s image-size]\n"
 363 "\t[-b free-blocks] [-f free-files] [-F mtree-specfile] [-xZ]\n"
 364 "\t[-N userdb-dir] image-file directory | manifest [extra-directory ...]\n",
 365             prog);
 366         exit(1);
 367 }