1 /* $NetBSD: makefs.c,v 1.26 2006/10/22 21:11:56 christos Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-4-Clause 5 * 6 * Copyright (c) 2001-2003 Wasabi Systems, Inc. 7 * All rights reserved. 8 * 9 * Written by Luke Mewburn for Wasabi Systems, Inc. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed for the NetBSD Project by 22 * Wasabi Systems, Inc. 23 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 24 * or promote products derived from this software without specific prior 25 * written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #include <sys/cdefs.h> 41 __FBSDID("$FreeBSD$"); 42 43 #include <sys/types.h> 44 #include <sys/stat.h> 45 #include <assert.h> 46 #include <ctype.h> 47 #include <errno.h> 48 #include <limits.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 #include <time.h> 53 #include <unistd.h> 54 #include <stdbool.h> 55 #include <util.h> 56 57 #include "makefs.h" 58 #include "mtree.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 #define ENTRY(name) { \ 74 # name, name ## _prep_opts, name ## _parse_opts, \ 75 name ## _cleanup_opts, name ## _makefs \ 76 } 77 ENTRY(cd9660), 78 ENTRY(ffs), 79 ENTRY(msdos), 80 #ifdef HAVE_ZFS 81 ENTRY(zfs), 82 #endif 83 { .type = NULL }, 84 }; 85 86 u_int debug; 87 int dupsok; 88 struct timespec start_time; 89 struct stat stampst; 90 91 static fstype_t *get_fstype(const char *); 92 static int get_tstamp(const char *, struct stat *); 93 static void usage(fstype_t *, fsinfo_t *); 94 95 int 96 main(int argc, char *argv[]) 97 { 98 struct stat sb; 99 struct timeval start; 100 fstype_t *fstype; 101 fsinfo_t fsoptions; 102 fsnode *root; 103 int ch, i, len; 104 const char *subtree; 105 const char *specfile; 106 107 setprogname(argv[0]); 108 109 debug = 0; 110 if ((fstype = get_fstype(DEFAULT_FSTYPE)) == NULL) 111 errx(1, "Unknown default fs type `%s'.", DEFAULT_FSTYPE); 112 113 /* set default fsoptions */ 114 (void)memset(&fsoptions, 0, sizeof(fsoptions)); 115 fsoptions.fd = -1; 116 fsoptions.sectorsize = -1; 117 118 if (fstype->prepare_options) 119 fstype->prepare_options(&fsoptions); 120 121 specfile = NULL; 122 #ifdef CLOCK_REALTIME 123 ch = clock_gettime(CLOCK_REALTIME, &start_time); 124 #else 125 ch = gettimeofday(&start, NULL); 126 start_time.tv_sec = start.tv_sec; 127 start_time.tv_nsec = start.tv_usec * 1000; 128 #endif 129 if (ch == -1) 130 err(1, "Unable to get system time"); 131 132 133 while ((ch = getopt(argc, argv, "B:b:Dd:f:F:M:m:N:O:o:pR:s:S:t:T:xZ")) != -1) { 134 switch (ch) { 135 136 case 'B': 137 if (strcmp(optarg, "be") == 0 || 138 strcmp(optarg, "4321") == 0 || 139 strcmp(optarg, "big") == 0) { 140 #if BYTE_ORDER == LITTLE_ENDIAN 141 fsoptions.needswap = 1; 142 #endif 143 } else if (strcmp(optarg, "le") == 0 || 144 strcmp(optarg, "1234") == 0 || 145 strcmp(optarg, "little") == 0) { 146 #if BYTE_ORDER == BIG_ENDIAN 147 fsoptions.needswap = 1; 148 #endif 149 } else { 150 warnx("Invalid endian `%s'.", optarg); 151 usage(fstype, &fsoptions); 152 } 153 break; 154 155 case 'b': 156 len = strlen(optarg) - 1; 157 if (optarg[len] == '%') { 158 optarg[len] = '\0'; 159 fsoptions.freeblockpc = 160 strsuftoll("free block percentage", 161 optarg, 0, 99); 162 } else { 163 fsoptions.freeblocks = 164 strsuftoll("free blocks", 165 optarg, 0, LLONG_MAX); 166 } 167 break; 168 169 case 'D': 170 dupsok = 1; 171 break; 172 173 case 'd': 174 debug = strtoll(optarg, NULL, 0); 175 break; 176 177 case 'f': 178 len = strlen(optarg) - 1; 179 if (optarg[len] == '%') { 180 optarg[len] = '\0'; 181 fsoptions.freefilepc = 182 strsuftoll("free file percentage", 183 optarg, 0, 99); 184 } else { 185 fsoptions.freefiles = 186 strsuftoll("free files", 187 optarg, 0, LLONG_MAX); 188 } 189 break; 190 191 case 'F': 192 specfile = optarg; 193 break; 194 195 case 'M': 196 fsoptions.minsize = 197 strsuftoll("minimum size", optarg, 1LL, LLONG_MAX); 198 break; 199 200 case 'N': 201 if (! setup_getid(optarg)) 202 errx(1, 203 "Unable to use user and group databases in `%s'", 204 optarg); 205 break; 206 207 case 'm': 208 fsoptions.maxsize = 209 strsuftoll("maximum size", optarg, 1LL, LLONG_MAX); 210 break; 211 212 case 'O': 213 fsoptions.offset = 214 strsuftoll("offset", optarg, 0LL, LLONG_MAX); 215 break; 216 217 case 'o': 218 { 219 char *p; 220 221 while ((p = strsep(&optarg, ",")) != NULL) { 222 if (*p == '\0') 223 errx(1, "Empty option"); 224 if (! fstype->parse_options(p, &fsoptions)) 225 usage(fstype, &fsoptions); 226 } 227 break; 228 } 229 case 'p': 230 /* Deprecated in favor of 'Z' */ 231 fsoptions.sparse = 1; 232 break; 233 234 case 'R': 235 /* Round image size up to specified block size */ 236 fsoptions.roundup = 237 strsuftoll("roundup-size", optarg, 0, LLONG_MAX); 238 break; 239 240 case 's': 241 fsoptions.minsize = fsoptions.maxsize = 242 strsuftoll("size", optarg, 1LL, LLONG_MAX); 243 break; 244 245 case 'S': 246 fsoptions.sectorsize = 247 (int)strsuftoll("sector size", optarg, 248 1LL, INT_MAX); 249 break; 250 251 case 't': 252 /* Check current one and cleanup if necessary. */ 253 if (fstype->cleanup_options) 254 fstype->cleanup_options(&fsoptions); 255 fsoptions.fs_specific = NULL; 256 if ((fstype = get_fstype(optarg)) == NULL) 257 errx(1, "Unknown fs type `%s'.", optarg); 258 fstype->prepare_options(&fsoptions); 259 break; 260 261 case 'T': 262 if (get_tstamp(optarg, &stampst) == -1) 263 errx(1, "Cannot get timestamp from `%s'", 264 optarg); 265 break; 266 267 case 'x': 268 fsoptions.onlyspec = 1; 269 break; 270 271 case 'Z': 272 /* Superscedes 'p' for compatibility with NetBSD makefs(8) */ 273 fsoptions.sparse = 1; 274 break; 275 276 default: 277 usage(fstype, &fsoptions); 278 /* NOTREACHED */ 279 280 } 281 } 282 if (debug) { 283 printf("debug mask: 0x%08x\n", debug); 284 printf("start time: %ld.%ld, %s", 285 (long)start_time.tv_sec, (long)start_time.tv_nsec, 286 ctime(&start_time.tv_sec)); 287 } 288 argc -= optind; 289 argv += optind; 290 291 if (argc < 2) 292 usage(fstype, &fsoptions); 293 294 /* -x must be accompanied by -F */ 295 if (fsoptions.onlyspec != 0 && specfile == NULL) 296 errx(1, "-x requires -F mtree-specfile."); 297 298 /* Accept '-' as meaning "read from standard input". */ 299 if (strcmp(argv[1], "-") == 0) 300 sb.st_mode = S_IFREG; 301 else { 302 if (stat(argv[1], &sb) == -1) 303 err(1, "Can't stat `%s'", argv[1]); 304 } 305 306 switch (sb.st_mode & S_IFMT) { 307 case S_IFDIR: /* walk the tree */ 308 subtree = argv[1]; 309 TIMER_START(start); 310 root = walk_dir(subtree, ".", NULL, NULL); 311 TIMER_RESULTS(start, "walk_dir"); 312 break; 313 case S_IFREG: /* read the manifest file */ 314 subtree = "."; 315 TIMER_START(start); 316 root = read_mtree(argv[1], NULL); 317 TIMER_RESULTS(start, "manifest"); 318 break; 319 default: 320 errx(1, "%s: not a file or directory", argv[1]); 321 /* NOTREACHED */ 322 } 323 324 /* append extra directory */ 325 for (i = 2; i < argc; i++) { 326 if (stat(argv[i], &sb) == -1) 327 err(1, "Can't stat `%s'", argv[i]); 328 if (!S_ISDIR(sb.st_mode)) 329 errx(1, "%s: not a directory", argv[i]); 330 TIMER_START(start); 331 root = walk_dir(argv[i], ".", NULL, root); 332 TIMER_RESULTS(start, "walk_dir2"); 333 } 334 335 if (specfile) { /* apply a specfile */ 336 TIMER_START(start); 337 apply_specfile(specfile, subtree, root, fsoptions.onlyspec); 338 TIMER_RESULTS(start, "apply_specfile"); 339 } 340 341 if (debug & DEBUG_DUMP_FSNODES) { 342 printf("\nparent: %s\n", subtree); 343 dump_fsnodes(root); 344 putchar('\n'); 345 } 346 347 /* build the file system */ 348 TIMER_START(start); 349 fstype->make_fs(argv[0], subtree, root, &fsoptions); 350 TIMER_RESULTS(start, "make_fs"); 351 352 free_fsnodes(root); 353 354 exit(0); 355 /* NOTREACHED */ 356 } 357 358 int 359 set_option(const option_t *options, const char *option, char *buf, size_t len) 360 { 361 char *var, *val; 362 int retval; 363 364 assert(option != NULL); 365 366 var = estrdup(option); 367 for (val = var; *val; val++) 368 if (*val == '=') { 369 *val++ = '\0'; 370 break; 371 } 372 retval = set_option_var(options, var, val, buf, len); 373 free(var); 374 return retval; 375 } 376 377 int 378 set_option_var(const option_t *options, const char *var, const char *val, 379 char *buf, size_t len) 380 { 381 char *s; 382 size_t i; 383 384 #define NUM(type) \ 385 if (!*val) { \ 386 *(type *)options[i].value = 1; \ 387 break; \ 388 } \ 389 *(type *)options[i].value = (type)strsuftoll(options[i].desc, val, \ 390 options[i].minimum, options[i].maximum); break 391 392 for (i = 0; options[i].name != NULL; i++) { 393 if (var[1] == '\0') { 394 if (options[i].letter != var[0]) 395 continue; 396 } else if (strcmp(options[i].name, var) != 0) 397 continue; 398 switch (options[i].type) { 399 case OPT_BOOL: 400 *(bool *)options[i].value = 1; 401 break; 402 case OPT_STRARRAY: 403 strlcpy((void *)options[i].value, val, (size_t) 404 options[i].maximum); 405 break; 406 case OPT_STRPTR: 407 s = estrdup(val); 408 *(char **)options[i].value = s; 409 break; 410 case OPT_STRBUF: 411 if (buf == NULL) 412 abort(); 413 strlcpy(buf, val, len); 414 break; 415 case OPT_INT64: 416 NUM(uint64_t); 417 case OPT_INT32: 418 NUM(uint32_t); 419 case OPT_INT16: 420 NUM(uint16_t); 421 case OPT_INT8: 422 NUM(uint8_t); 423 default: 424 warnx("Unknown type %d in option %s", options[i].type, 425 val); 426 return 0; 427 } 428 return i; 429 } 430 warnx("Unknown option `%s'", var); 431 return -1; 432 } 433 434 435 static fstype_t * 436 get_fstype(const char *type) 437 { 438 int i; 439 440 for (i = 0; fstypes[i].type != NULL; i++) 441 if (strcmp(fstypes[i].type, type) == 0) 442 return (&fstypes[i]); 443 return (NULL); 444 } 445 446 option_t * 447 copy_opts(const option_t *o) 448 { 449 size_t i; 450 451 for (i = 0; o[i].name; i++) 452 continue; 453 i++; 454 return memcpy(ecalloc(i, sizeof(*o)), o, i * sizeof(*o)); 455 } 456 457 static int 458 get_tstamp(const char *b, struct stat *st) 459 { 460 time_t when; 461 char *eb; 462 long long l; 463 464 if (stat(b, st) != -1) 465 return 0; 466 467 { 468 errno = 0; 469 l = strtoll(b, &eb, 0); 470 if (b == eb || *eb || errno) 471 return -1; 472 when = (time_t)l; 473 } 474 475 st->st_ino = 1; 476 #ifdef HAVE_STRUCT_STAT_BIRTHTIME 477 st->st_birthtime = 478 #endif 479 st->st_mtime = st->st_ctime = st->st_atime = when; 480 return 0; 481 } 482 483 static void 484 usage(fstype_t *fstype, fsinfo_t *fsoptions) 485 { 486 const char *prog; 487 488 prog = getprogname(); 489 fprintf(stderr, 490 "Usage: %s [-xZ] [-B endian] [-b free-blocks] [-d debug-mask]\n" 491 "\t[-F mtree-specfile] [-f free-files] [-M minimum-size] [-m maximum-size]\n" 492 "\t[-N userdb-dir] [-O offset] [-o fs-options] [-R roundup-size]\n" 493 "\t[-S sector-size] [-s image-size] [-T <timestamp/file>] [-t fs-type]\n" 494 "\timage-file directory | manifest [extra-directory ...]\n", 495 prog); 496 497 if (fstype) { 498 size_t i; 499 option_t *o = fsoptions->fs_options; 500 501 fprintf(stderr, "\n%s specific options:\n", fstype->type); 502 for (i = 0; o[i].name != NULL; i++) 503 fprintf(stderr, "\t%c%c%20.20s\t%s\n", 504 o[i].letter ? o[i].letter : ' ', 505 o[i].letter ? ',' : ' ', 506 o[i].name, o[i].desc); 507 } 508 exit(1); 509 } 510