makefs.c revision 1.54
1 /* $NetBSD: makefs.c,v 1.54 2021/04/03 14:10:56 simonb 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 1.54 2021/04/03 14:10:56 simonb 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 #include <stdbool.h> 56 #include <util.h> 57 58 #include "makefs.h" 59 #include "mtree.h" 60 #include "cd9660.h" 61 62 /* 63 * list of supported file systems and dispatch functions 64 */ 65 typedef struct { 66 const char *type; 67 void (*prepare_options)(fsinfo_t *); 68 int (*parse_options)(const char *, fsinfo_t *); 69 void (*cleanup_options)(fsinfo_t *); 70 void (*make_fs)(const char *, const char *, fsnode *, 71 fsinfo_t *); 72 } fstype_t; 73 74 static fstype_t fstypes[] = { 75 #define ENTRY(name) { \ 76 # name, name ## _prep_opts, name ## _parse_opts, \ 77 name ## _cleanup_opts, name ## _makefs \ 78 } 79 ENTRY(ffs), 80 ENTRY(cd9660), 81 ENTRY(chfs), 82 ENTRY(v7fs), 83 ENTRY(msdos), 84 ENTRY(udf), 85 { .type = NULL }, 86 }; 87 88 u_int debug; 89 struct timespec start_time; 90 struct stat stampst; 91 92 static fstype_t *get_fstype(const char *); 93 static int get_tstamp(const char *, struct stat *); 94 static void usage(fstype_t *, fsinfo_t *) __dead; 95 96 int 97 main(int argc, char *argv[]) 98 { 99 struct timeval start; 100 fstype_t *fstype; 101 fsinfo_t fsoptions; 102 fsnode *root; 103 int ch, i, len; 104 char *specfile; 105 106 setprogname(argv[0]); 107 108 debug = 0; 109 if ((fstype = get_fstype(DEFAULT_FSTYPE)) == NULL) 110 errx(1, "Unknown default fs type `%s'.", DEFAULT_FSTYPE); 111 112 /* set default fsoptions */ 113 (void)memset(&fsoptions, 0, sizeof(fsoptions)); 114 fsoptions.fd = -1; 115 fsoptions.sectorsize = -1; 116 117 if (fstype->prepare_options) 118 fstype->prepare_options(&fsoptions); 119 120 specfile = NULL; 121 #ifdef CLOCK_REALTIME 122 ch = clock_gettime(CLOCK_REALTIME, &start_time); 123 #else 124 ch = gettimeofday(&start, NULL); 125 start_time.tv_sec = start.tv_sec; 126 start_time.tv_nsec = start.tv_usec * 1000; 127 #endif 128 if (ch == -1) 129 err(1, "Unable to get system time"); 130 131 132 while ((ch = getopt(argc, argv, "B:b:d:f:F:LM:m:N:O:o:rs:S:t:T:xZ")) != -1) { 133 switch (ch) { 134 135 case 'B': 136 if (strcmp(optarg, "be") == 0 || 137 strcmp(optarg, "4321") == 0 || 138 strcmp(optarg, "big") == 0) { 139 #if BYTE_ORDER == LITTLE_ENDIAN 140 fsoptions.needswap = 1; 141 #endif 142 } else if (strcmp(optarg, "le") == 0 || 143 strcmp(optarg, "1234") == 0 || 144 strcmp(optarg, "little") == 0) { 145 #if BYTE_ORDER == BIG_ENDIAN 146 fsoptions.needswap = 1; 147 #endif 148 } else { 149 warnx("Invalid endian `%s'.", optarg); 150 usage(fstype, &fsoptions); 151 } 152 break; 153 154 case 'b': 155 len = strlen(optarg) - 1; 156 if (optarg[len] == '%') { 157 optarg[len] = '\0'; 158 fsoptions.freeblockpc = 159 strsuftoll("free block percentage", 160 optarg, 0, 99); 161 } else { 162 fsoptions.freeblocks = 163 strsuftoll("free blocks", 164 optarg, 0, LLONG_MAX); 165 } 166 break; 167 168 case 'd': 169 debug = strtoll(optarg, NULL, 0); 170 break; 171 172 case 'f': 173 len = strlen(optarg) - 1; 174 if (optarg[len] == '%') { 175 optarg[len] = '\0'; 176 fsoptions.freefilepc = 177 strsuftoll("free file percentage", 178 optarg, 0, 99); 179 } else { 180 fsoptions.freefiles = 181 strsuftoll("free files", 182 optarg, 0, LLONG_MAX); 183 } 184 break; 185 186 case 'F': 187 specfile = optarg; 188 break; 189 190 case 'L': 191 fsoptions.follow = true; 192 break; 193 194 case 'M': 195 fsoptions.minsize = 196 strsuftoll("minimum size", optarg, 1LL, LLONG_MAX); 197 break; 198 199 case 'N': 200 if (! setup_getid(optarg)) 201 errx(1, 202 "Unable to use user and group databases in `%s'", 203 optarg); 204 break; 205 206 case 'm': 207 fsoptions.maxsize = 208 strsuftoll("maximum size", optarg, 1LL, LLONG_MAX); 209 break; 210 211 case 'O': 212 fsoptions.offset = 213 strsuftoll("offset", optarg, 0LL, LLONG_MAX); 214 break; 215 216 case 'o': 217 { 218 char *p; 219 220 while ((p = strsep(&optarg, ",")) != NULL) { 221 if (*p == '\0') 222 errx(1, "Empty option"); 223 if (! fstype->parse_options(p, &fsoptions)) 224 usage(fstype, &fsoptions); 225 } 226 break; 227 } 228 229 case 'r': 230 fsoptions.replace = 1; 231 break; 232 233 case 's': 234 fsoptions.minsize = fsoptions.maxsize = 235 strsuftoll("size", optarg, 1LL, LLONG_MAX); 236 break; 237 238 case 'S': 239 fsoptions.sectorsize = 240 (int)strsuftoll("sector size", optarg, 241 1LL, INT_MAX); 242 break; 243 244 case 't': 245 /* Check current one and cleanup if necessary. */ 246 if (fstype->cleanup_options) 247 fstype->cleanup_options(&fsoptions); 248 fsoptions.fs_specific = NULL; 249 if ((fstype = get_fstype(optarg)) == NULL) 250 errx(1, "Unknown fs type `%s'.", optarg); 251 fstype->prepare_options(&fsoptions); 252 break; 253 254 case 'T': 255 if (get_tstamp(optarg, &stampst) == -1) 256 errx(1, "Cannot get timestamp from `%s'", 257 optarg); 258 break; 259 260 case 'x': 261 fsoptions.onlyspec = 1; 262 break; 263 264 case 'Z': 265 fsoptions.sparse = 1; 266 break; 267 268 case '?': 269 default: 270 usage(fstype, &fsoptions); 271 /* NOTREACHED */ 272 273 } 274 } 275 if (debug) { 276 printf("debug mask: 0x%08x\n", debug); 277 printf("start time: %ld.%ld, %s", 278 (long)start_time.tv_sec, (long)start_time.tv_nsec, 279 ctime(&start_time.tv_sec)); 280 } 281 argc -= optind; 282 argv += optind; 283 284 if (argc < 2) 285 usage(fstype, &fsoptions); 286 287 /* -x must be accompanied by -F */ 288 if (fsoptions.onlyspec != 0 && specfile == NULL) 289 errx(1, "-x requires -F mtree-specfile."); 290 291 /* walk the tree */ 292 TIMER_START(start); 293 root = walk_dir(argv[1], ".", NULL, NULL, fsoptions.replace, 294 fsoptions.follow); 295 TIMER_RESULTS(start, "walk_dir"); 296 297 /* append extra directory */ 298 for (i = 2; i < argc; i++) { 299 struct stat sb; 300 if (stat(argv[i], &sb) == -1) 301 err(1, "Can't stat `%s'", argv[i]); 302 if (!S_ISDIR(sb.st_mode)) 303 errx(1, "%s: not a directory", argv[i]); 304 TIMER_START(start); 305 root = walk_dir(argv[i], ".", NULL, root, fsoptions.replace, 306 fsoptions.follow); 307 TIMER_RESULTS(start, "walk_dir2"); 308 } 309 310 if (specfile) { /* apply a specfile */ 311 TIMER_START(start); 312 apply_specfile(specfile, argv[1], root, fsoptions.onlyspec); 313 TIMER_RESULTS(start, "apply_specfile"); 314 } 315 316 if (debug & DEBUG_DUMP_FSNODES) { 317 printf("\nparent: %s\n", argv[1]); 318 dump_fsnodes(root); 319 putchar('\n'); 320 } 321 322 /* build the file system */ 323 TIMER_START(start); 324 fstype->make_fs(argv[0], argv[1], root, &fsoptions); 325 TIMER_RESULTS(start, "make_fs"); 326 327 free_fsnodes(root); 328 329 exit(0); 330 /* NOTREACHED */ 331 } 332 333 int 334 set_option(const option_t *options, const char *option, char *buf, size_t len) 335 { 336 char *var, *val; 337 int retval; 338 339 assert(option != NULL); 340 341 var = estrdup(option); 342 for (val = var; *val; val++) 343 if (*val == '=') { 344 *val++ = '\0'; 345 break; 346 } 347 retval = set_option_var(options, var, val, buf, len); 348 free(var); 349 return retval; 350 } 351 352 int 353 set_option_var(const option_t *options, const char *var, const char *val, 354 char *buf, size_t len) 355 { 356 char *s; 357 size_t i; 358 359 #define NUM(type) \ 360 if (!*val) { \ 361 *(type *)options[i].value = 1; \ 362 break; \ 363 } \ 364 *(type *)options[i].value = (type)strsuftoll(options[i].desc, val, \ 365 options[i].minimum, options[i].maximum); break 366 367 for (i = 0; options[i].name != NULL; i++) { 368 if (var[1] == '\0') { 369 if (options[i].letter != var[0]) 370 continue; 371 } else if (strcmp(options[i].name, var) != 0) 372 continue; 373 switch (options[i].type) { 374 case OPT_BOOL: 375 *(bool *)options[i].value = 1; 376 break; 377 case OPT_STRARRAY: 378 strlcpy((void *)options[i].value, val, (size_t) 379 options[i].maximum); 380 break; 381 case OPT_STRPTR: 382 s = estrdup(val); 383 *(char **)options[i].value = s; 384 break; 385 case OPT_STRBUF: 386 if (buf == NULL) 387 abort(); 388 strlcpy(buf, val, len); 389 break; 390 case OPT_INT64: 391 NUM(uint64_t); 392 case OPT_INT32: 393 NUM(uint32_t); 394 case OPT_INT16: 395 NUM(uint16_t); 396 case OPT_INT8: 397 NUM(uint8_t); 398 default: 399 warnx("Unknown type %d in option %s", options[i].type, 400 val); 401 return 0; 402 } 403 return i; 404 } 405 warnx("Unknown option `%s'", var); 406 return -1; 407 } 408 409 410 static fstype_t * 411 get_fstype(const char *type) 412 { 413 int i; 414 415 for (i = 0; fstypes[i].type != NULL; i++) 416 if (strcmp(fstypes[i].type, type) == 0) 417 return (&fstypes[i]); 418 return (NULL); 419 } 420 421 option_t * 422 copy_opts(const option_t *o) 423 { 424 size_t i; 425 for (i = 0; o[i].name; i++) 426 continue; 427 i++; 428 return memcpy(ecalloc(i, sizeof(*o)), o, i * sizeof(*o)); 429 } 430 431 static int 432 get_tstamp(const char *b, struct stat *st) 433 { 434 time_t when; 435 char *eb; 436 long long l; 437 438 if (stat(b, st) != -1) 439 return 0; 440 441 #ifndef HAVE_NBTOOL_CONFIG_H 442 errno = 0; 443 if ((when = parsedate(b, NULL, NULL)) == -1 && errno != 0) 444 #endif 445 { 446 errno = 0; 447 l = strtoll(b, &eb, 0); 448 if (b == eb || *eb || errno) 449 return -1; 450 when = (time_t)l; 451 } 452 453 st->st_ino = 1; 454 #if HAVE_STRUCT_STAT_BIRTHTIME 455 st->st_birthtime = 456 #endif 457 st->st_mtime = st->st_ctime = st->st_atime = when; 458 return 0; 459 } 460 461 static void 462 usage(fstype_t *fstype, fsinfo_t *fsoptions) 463 { 464 const char *prog; 465 466 prog = getprogname(); 467 fprintf(stderr, 468 "Usage: %s [-rxZ] [-B endian] [-b free-blocks] [-d debug-mask]\n" 469 "\t[-F mtree-specfile] [-f free-files] [-M minimum-size] [-m maximum-size]\n" 470 "\t[-N userdb-dir] [-O offset] [-o fs-options] [-S sector-size]\n" 471 "\t[-s image-size] [-T <timestamp/file>] [-t fs-type]" 472 " image-file directory [extra-directory ...]\n", 473 prog); 474 475 if (fstype) { 476 size_t i; 477 option_t *o = fsoptions->fs_options; 478 479 fprintf(stderr, "\n%s specific options:\n", fstype->type); 480 for (i = 0; o[i].name != NULL; i++) 481 fprintf(stderr, "\t%c%c%20.20s\t%s\n", 482 o[i].letter ? o[i].letter : ' ', 483 o[i].letter ? ',' : ' ', 484 o[i].name, o[i].desc); 485 } 486 exit(1); 487 } 488
Indexes created Mon Sep 22 21:09:42 GMT 2025