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