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 * $FreeBSD: head/usr.sbin/makefs/makefs.c 326276 2017-11-27 15:37:16Z pfg $ 40 */ 41 42 #include <sys/types.h> 43 #include <sys/stat.h> 44 #include <assert.h> 45 #include <ctype.h> 46 #include <errno.h> 47 #include <limits.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 #include <time.h> 52 #include <unistd.h> 53 #include <stdbool.h> 54 #include <util.h> 55 56 #include "makefs.h" 57 #include "mtree.h" 58 59 /* 60 * list of supported file systems and dispatch functions 61 */ 62 typedef struct { 63 const char *type; 64 void (*prepare_options)(fsinfo_t *); 65 int (*parse_options)(const char *, fsinfo_t *); 66 void (*cleanup_options)(fsinfo_t *); 67 void (*make_fs)(const char *, const char *, fsnode *, 68 fsinfo_t *); 69 } fstype_t; 70 71 static fstype_t fstypes[] = { 72 #define ENTRY(name) { \ 73 # name, name ## _prep_opts, name ## _parse_opts, \ 74 name ## _cleanup_opts, name ## _makefs \ 75 } 76 ENTRY(ffs), 77 ENTRY(cd9660), 78 ENTRY(msdos), 79 ENTRY(hammer2), 80 { .type = NULL }, 81 }; 82 83 u_int debug; 84 int dupsok; 85 struct timespec start_time; 86 struct stat stampst; 87 88 static fstype_t *get_fstype(const char *); 89 static int get_tstamp(const char *, struct stat *); 90 static void usage(fstype_t *, fsinfo_t *); 91 92 int 93 main(int argc, char *argv[]) 94 { 95 struct stat sb; 96 struct timeval start; 97 fstype_t *fstype; 98 fsinfo_t fsoptions; 99 fsnode *root; 100 int ch, i, len; 101 const char *subtree; 102 const char *specfile; 103 104 setprogname(argv[0]); 105 106 debug = 0; 107 if ((fstype = get_fstype(DEFAULT_FSTYPE)) == NULL) 108 errx(1, "Unknown default fs type `%s'.", DEFAULT_FSTYPE); 109 110 /* set default fsoptions */ 111 (void)memset(&fsoptions, 0, sizeof(fsoptions)); 112 fsoptions.fd = -1; 113 fsoptions.sectorsize = -1; 114 115 if (fstype->prepare_options) 116 fstype->prepare_options(&fsoptions); 117 118 specfile = NULL; 119 #ifdef CLOCK_REALTIME 120 ch = clock_gettime(CLOCK_REALTIME, &start_time); 121 #else 122 ch = gettimeofday(&start, NULL); 123 start_time.tv_sec = start.tv_sec; 124 start_time.tv_nsec = start.tv_usec * 1000; 125 #endif 126 if (ch == -1) 127 err(1, "Unable to get system time"); 128 129 130 while ((ch = getopt(argc, argv, "B:b:Dd:f:F:M:m:N:O:o:pR:s:S:t:T:xZ")) != -1) { 131 switch (ch) { 132 133 case 'B': 134 if (strcmp(optarg, "be") == 0 || 135 strcmp(optarg, "4321") == 0 || 136 strcmp(optarg, "big") == 0) { 137 #if BYTE_ORDER == LITTLE_ENDIAN 138 fsoptions.needswap = 1; 139 #endif 140 } else if (strcmp(optarg, "le") == 0 || 141 strcmp(optarg, "1234") == 0 || 142 strcmp(optarg, "little") == 0) { 143 #if BYTE_ORDER == BIG_ENDIAN 144 fsoptions.needswap = 1; 145 #endif 146 } else { 147 warnx("Invalid endian `%s'.", optarg); 148 usage(fstype, &fsoptions); 149 } 150 break; 151 152 case 'b': 153 len = strlen(optarg) - 1; 154 if (optarg[len] == '%') { 155 optarg[len] = '\0'; 156 fsoptions.freeblockpc = 157 strsuftoll("free block percentage", 158 optarg, 0, 99); 159 } else { 160 fsoptions.freeblocks = 161 strsuftoll("free blocks", 162 optarg, 0, LLONG_MAX); 163 } 164 break; 165 166 case 'D': 167 dupsok = 1; 168 break; 169 170 case 'd': 171 debug = strtoll(optarg, NULL, 0); 172 break; 173 174 case 'f': 175 len = strlen(optarg) - 1; 176 if (optarg[len] == '%') { 177 optarg[len] = '\0'; 178 fsoptions.freefilepc = 179 strsuftoll("free file percentage", 180 optarg, 0, 99); 181 } else { 182 fsoptions.freefiles = 183 strsuftoll("free files", 184 optarg, 0, LLONG_MAX); 185 } 186 break; 187 188 case 'F': 189 specfile = optarg; 190 break; 191 192 case 'M': 193 fsoptions.minsize = 194 strsuftoll("minimum size", optarg, 1LL, LLONG_MAX); 195 break; 196 197 case 'N': 198 if (! setup_getid(optarg)) 199 errx(1, 200 "Unable to use user and group databases in `%s'", 201 optarg); 202 break; 203 204 case 'm': 205 fsoptions.maxsize = 206 strsuftoll("maximum size", optarg, 1LL, LLONG_MAX); 207 break; 208 209 case 'O': 210 fsoptions.offset = 211 strsuftoll("offset", optarg, 0LL, LLONG_MAX); 212 break; 213 214 case 'o': 215 { 216 char *p; 217 218 while ((p = strsep(&optarg, ",")) != NULL) { 219 if (*p == '\0') 220 errx(1, "Empty option"); 221 if (! fstype->parse_options(p, &fsoptions)) 222 usage(fstype, &fsoptions); 223 } 224 break; 225 } 226 case 'p': 227 /* Deprecated in favor of 'Z' */ 228 fsoptions.sparse = 1; 229 break; 230 231 case 'R': 232 /* Round image size up to specified block size */ 233 fsoptions.roundup = 234 strsuftoll("roundup-size", optarg, 0, LLONG_MAX); 235 break; 236 237 case 's': 238 fsoptions.minsize = fsoptions.maxsize = 239 strsuftoll("size", optarg, 1LL, LLONG_MAX); 240 break; 241 242 case 'S': 243 fsoptions.sectorsize = 244 (int)strsuftoll("sector size", optarg, 245 1LL, INT_MAX); 246 break; 247 248 case 't': 249 /* Check current one and cleanup if necessary. */ 250 if (fstype->cleanup_options) 251 fstype->cleanup_options(&fsoptions); 252 fsoptions.fs_specific = NULL; 253 if ((fstype = get_fstype(optarg)) == NULL) 254 errx(1, "Unknown fs type `%s'.", optarg); 255 fstype->prepare_options(&fsoptions); 256 break; 257 258 case 'T': 259 if (get_tstamp(optarg, &stampst) == -1) 260 errx(1, "Cannot get timestamp from `%s'", 261 optarg); 262 break; 263 264 case 'x': 265 fsoptions.onlyspec = 1; 266 break; 267 268 case 'Z': 269 /* Superscedes 'p' for compatibility with NetBSD makefs(8) */ 270 fsoptions.sparse = 1; 271 break; 272 273 case '?': 274 default: 275 usage(fstype, &fsoptions); 276 /* NOTREACHED */ 277 278 } 279 } 280 if (debug) { 281 printf("debug mask: 0x%08x\n", debug); 282 printf("start time: %ld.%ld, %s", 283 (long)start_time.tv_sec, (long)start_time.tv_nsec, 284 ctime(&start_time.tv_sec)); 285 } 286 argc -= optind; 287 argv += optind; 288 289 if (argc < 2) 290 usage(fstype, &fsoptions); 291 292 /* -x must be accompanied by -F */ 293 if (fsoptions.onlyspec != 0 && specfile == NULL) 294 errx(1, "-x requires -F mtree-specfile."); 295 296 /* Accept '-' as meaning "read from standard input". */ 297 if (strcmp(argv[1], "-") == 0) 298 sb.st_mode = S_IFREG; 299 else { 300 if (stat(argv[1], &sb) == -1) 301 err(1, "Can't stat `%s'", argv[1]); 302 } 303 304 switch (sb.st_mode & S_IFMT) { 305 case S_IFDIR: /* walk the tree */ 306 subtree = argv[1]; 307 TIMER_START(start); 308 root = walk_dir(subtree, ".", NULL, NULL); 309 TIMER_RESULTS(start, "walk_dir"); 310 break; 311 case S_IFREG: /* read the manifest file */ 312 subtree = "."; 313 TIMER_START(start); 314 root = read_mtree(argv[1], NULL); 315 TIMER_RESULTS(start, "manifest"); 316 break; 317 default: 318 errx(1, "%s: not a file or directory", argv[1]); 319 /* NOTREACHED */ 320 } 321 322 /* append extra directory */ 323 for (i = 2; i < argc; i++) { 324 if (stat(argv[i], &sb) == -1) 325 err(1, "Can't stat `%s'", argv[i]); 326 if (!S_ISDIR(sb.st_mode)) 327 errx(1, "%s: not a directory", argv[i]); 328 TIMER_START(start); 329 root = walk_dir(argv[i], ".", NULL, root); 330 TIMER_RESULTS(start, "walk_dir2"); 331 } 332 333 if (specfile) { /* apply a specfile */ 334 TIMER_START(start); 335 apply_specfile(specfile, subtree, root, fsoptions.onlyspec); 336 TIMER_RESULTS(start, "apply_specfile"); 337 } 338 339 if (debug & DEBUG_DUMP_FSNODES) { 340 printf("\nparent: %s\n", subtree); 341 dump_fsnodes(root); 342 putchar('\n'); 343 } 344 345 /* build the file system */ 346 TIMER_START(start); 347 fstype->make_fs(argv[0], subtree, root, &fsoptions); 348 TIMER_RESULTS(start, "make_fs"); 349 350 free_fsnodes(root); 351 352 exit(0); 353 /* NOTREACHED */ 354 } 355 356 int 357 set_option(const option_t *options, const char *option, char *buf, size_t len) 358 { 359 char *var, *val; 360 int retval; 361 362 assert(option != NULL); 363 364 var = estrdup(option); 365 for (val = var; *val; val++) 366 if (*val == '=') { 367 *val++ = '\0'; 368 break; 369 } 370 retval = set_option_var(options, var, val, buf, len); 371 free(var); 372 return retval; 373 } 374 375 int 376 set_option_var(const option_t *options, const char *var, const char *val, 377 char *buf, size_t len) 378 { 379 char *s; 380 size_t i; 381 382 #define NUM(type) \ 383 if (!*val) { \ 384 *(type *)options[i].value = 1; \ 385 break; \ 386 } \ 387 *(type *)options[i].value = (type)strsuftoll(options[i].desc, val, \ 388 options[i].minimum, options[i].maximum); break 389 390 for (i = 0; options[i].name != NULL; i++) { 391 if (var[1] == '\0') { 392 if (options[i].letter != var[0]) 393 continue; 394 } else if (strcmp(options[i].name, var) != 0) 395 continue; 396 switch (options[i].type) { 397 case OPT_BOOL: 398 *(bool *)options[i].value = 1; 399 break; 400 case OPT_STRARRAY: 401 strlcpy((void *)options[i].value, val, (size_t) 402 options[i].maximum); 403 break; 404 case OPT_STRPTR: 405 s = estrdup(val); 406 *(char **)options[i].value = s; 407 break; 408 case OPT_STRBUF: 409 if (buf == NULL) 410 abort(); 411 strlcpy(buf, val, len); 412 break; 413 case OPT_INT64: 414 NUM(uint64_t); 415 case OPT_INT32: 416 NUM(uint32_t); 417 case OPT_INT16: 418 NUM(uint16_t); 419 case OPT_INT8: 420 NUM(uint8_t); 421 default: 422 warnx("Unknown type %d in option %s", options[i].type, 423 val); 424 return 0; 425 } 426 return i; 427 } 428 warnx("Unknown option `%s'", var); 429 return -1; 430 } 431 432 433 static fstype_t * 434 get_fstype(const char *type) 435 { 436 int i; 437 438 for (i = 0; fstypes[i].type != NULL; i++) 439 if (strcmp(fstypes[i].type, type) == 0) 440 return (&fstypes[i]); 441 return (NULL); 442 } 443 444 option_t * 445 copy_opts(const option_t *o) 446 { 447 size_t i; 448 449 for (i = 0; o[i].name; i++) 450 continue; 451 i++; 452 return memcpy(ecalloc(i, sizeof(*o)), o, i * sizeof(*o)); 453 } 454 455 static int 456 get_tstamp(const char *b, struct stat *st) 457 { 458 time_t when; 459 char *eb; 460 long long l; 461 462 if (stat(b, st) != -1) 463 return 0; 464 465 { 466 errno = 0; 467 l = strtoll(b, &eb, 0); 468 if (b == eb || *eb || errno) 469 return -1; 470 when = (time_t)l; 471 } 472 473 st->st_ino = 1; 474 #if HAVE_STRUCT_STAT_BIRTHTIME 475 st->st_birthtime = 476 #endif 477 st->st_mtime = st->st_ctime = st->st_atime = when; 478 return 0; 479 } 480 481 static void 482 usage(fstype_t *fstype, fsinfo_t *fsoptions) 483 { 484 const char *prog; 485 486 prog = getprogname(); 487 fprintf(stderr, 488 "Usage: %s [-xZ] [-B endian] [-b free-blocks] [-d debug-mask]\n" 489 "\t[-F mtree-specfile] [-f free-files] [-M minimum-size] [-m maximum-size]\n" 490 "\t[-N userdb-dir] [-O offset] [-o fs-options] [-R roundup-size]\n" 491 "\t[-S sector-size] [-s image-size] [-T <timestamp/file>] [-t fs-type]\n" 492 "\timage-file directory | manifest [extra-directory ...]\n", 493 prog); 494 495 if (fstype) { 496 size_t i; 497 option_t *o = fsoptions->fs_options; 498 499 fprintf(stderr, "\n%s specific options:\n", fstype->type); 500 for (i = 0; o[i].name != NULL; i++) 501 fprintf(stderr, "\t%c%c%20.20s\t%s\n", 502 o[i].letter ? o[i].letter : ' ', 503 o[i].letter ? ',' : ' ', 504 o[i].name, o[i].desc); 505 } 506 exit(1); 507 } 508