1 /* $NetBSD: ffs.c,v 1.45 2011/10/09 22:49:26 christos Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-4-Clause 5 * 6 * Copyright (c) 2001 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 * Copyright (c) 1982, 1986, 1989, 1993 41 * The Regents of the University of California. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. Neither the name of the University nor the names of its contributors 52 * may be used to endorse or promote products derived from this software 53 * without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 56 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 57 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 58 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 59 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 60 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 61 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 62 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 63 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 64 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 65 * SUCH DAMAGE. 66 * 67 * @(#)ffs_alloc.c 8.19 (Berkeley) 7/13/95 68 */ 69 70 #include <sys/cdefs.h> 71 __FBSDID("$FreeBSD$"); 72 73 #if HAVE_NBTOOL_CONFIG_H 74 #include "nbtool_config.h" 75 #endif 76 77 #include <sys/param.h> 78 79 #include <sys/mount.h> 80 81 #include <assert.h> 82 #include <errno.h> 83 #include <fcntl.h> 84 #include <stdarg.h> 85 #include <stdint.h> 86 #include <stdio.h> 87 #include <stdlib.h> 88 #include <string.h> 89 #include <time.h> 90 #include <unistd.h> 91 #include <util.h> 92 93 #include "makefs.h" 94 #include "ffs.h" 95 96 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 97 #include <sys/statvfs.h> 98 #endif 99 100 #include <ufs/ufs/dinode.h> 101 #include <ufs/ufs/dir.h> 102 #include <ufs/ffs/fs.h> 103 104 105 #include "ffs/ufs_bswap.h" 106 #include "ffs/ufs_inode.h" 107 #include "ffs/newfs_extern.h" 108 #include "ffs/ffs_extern.h" 109 110 #undef DIP 111 #define DIP(dp, field) \ 112 ((ffs_opts->version == 1) ? \ 113 (dp)->ffs1_din.di_##field : (dp)->ffs2_din.di_##field) 114 115 /* 116 * Various file system defaults (cribbed from newfs(8)). 117 */ 118 #define DFL_FRAGSIZE 4096 /* fragment size */ 119 #define DFL_BLKSIZE 32768 /* block size */ 120 #define DFL_SECSIZE 512 /* sector size */ 121 #define DFL_CYLSPERGROUP 65536 /* cylinders per group */ 122 #define DFL_FRAGSPERINODE 4 /* fragments per inode */ 123 #define DFL_ROTDELAY 0 /* rotational delay */ 124 #define DFL_NRPOS 1 /* rotational positions */ 125 #define DFL_RPM 3600 /* rpm of disk */ 126 #define DFL_NSECTORS 64 /* # of sectors */ 127 #define DFL_NTRACKS 16 /* # of tracks */ 128 129 130 typedef struct { 131 u_char *buf; /* buf for directory */ 132 doff_t size; /* full size of buf */ 133 doff_t cur; /* offset of current entry */ 134 } dirbuf_t; 135 136 137 static int ffs_create_image(const char *, fsinfo_t *); 138 static void ffs_dump_fsinfo(fsinfo_t *); 139 static void ffs_dump_dirbuf(dirbuf_t *, const char *, int); 140 static void ffs_make_dirbuf(dirbuf_t *, const char *, fsnode *, int); 141 static int ffs_populate_dir(const char *, fsnode *, fsinfo_t *); 142 static void ffs_size_dir(fsnode *, fsinfo_t *); 143 static void ffs_validate(const char *, fsnode *, fsinfo_t *); 144 static void ffs_write_file(union dinode *, uint32_t, void *, fsinfo_t *); 145 static void ffs_write_inode(union dinode *, uint32_t, const fsinfo_t *); 146 static void *ffs_build_dinode1(struct ufs1_dinode *, dirbuf_t *, fsnode *, 147 fsnode *, fsinfo_t *); 148 static void *ffs_build_dinode2(struct ufs2_dinode *, dirbuf_t *, fsnode *, 149 fsnode *, fsinfo_t *); 150 151 152 /* publicly visible functions */ 153 154 void 155 ffs_prep_opts(fsinfo_t *fsopts) 156 { 157 ffs_opt_t *ffs_opts = ecalloc(1, sizeof(*ffs_opts)); 158 159 const option_t ffs_options[] = { 160 { 'b', "bsize", &ffs_opts->bsize, OPT_INT32, 161 1, INT_MAX, "block size" }, 162 { 'f', "fsize", &ffs_opts->fsize, OPT_INT32, 163 1, INT_MAX, "fragment size" }, 164 { 'd', "density", &ffs_opts->density, OPT_INT32, 165 1, INT_MAX, "bytes per inode" }, 166 { 'm', "minfree", &ffs_opts->minfree, OPT_INT32, 167 0, 99, "minfree" }, 168 { 'M', "maxbpg", &ffs_opts->maxbpg, OPT_INT32, 169 1, INT_MAX, "max blocks per file in a cg" }, 170 { 'a', "avgfilesize", &ffs_opts->avgfilesize, OPT_INT32, 171 1, INT_MAX, "expected average file size" }, 172 { 'n', "avgfpdir", &ffs_opts->avgfpdir, OPT_INT32, 173 1, INT_MAX, "expected # of files per directory" }, 174 { 'x', "extent", &ffs_opts->maxbsize, OPT_INT32, 175 1, INT_MAX, "maximum # extent size" }, 176 { 'g', "maxbpcg", &ffs_opts->maxblkspercg, OPT_INT32, 177 1, INT_MAX, "max # of blocks per group" }, 178 { 'v', "version", &ffs_opts->version, OPT_INT32, 179 1, 2, "UFS version" }, 180 { 'o', "optimization", NULL, OPT_STRBUF, 181 0, 0, "Optimization (time|space)" }, 182 { 'l', "label", ffs_opts->label, OPT_STRARRAY, 183 1, sizeof(ffs_opts->label), "UFS label" }, 184 { 's', "softupdates", &ffs_opts->softupdates, OPT_INT32, 185 0, 1, "enable softupdates" }, 186 { .name = NULL } 187 }; 188 189 ffs_opts->bsize= -1; 190 ffs_opts->fsize= -1; 191 ffs_opts->cpg= -1; 192 ffs_opts->density= -1; 193 ffs_opts->minfree= -1; 194 ffs_opts->optimization= -1; 195 ffs_opts->maxcontig= -1; 196 ffs_opts->maxbpg= -1; 197 ffs_opts->avgfilesize= -1; 198 ffs_opts->avgfpdir= -1; 199 ffs_opts->version = 1; 200 ffs_opts->softupdates = 0; 201 202 fsopts->fs_specific = ffs_opts; 203 fsopts->fs_options = copy_opts(ffs_options); 204 } 205 206 void 207 ffs_cleanup_opts(fsinfo_t *fsopts) 208 { 209 free(fsopts->fs_specific); 210 free(fsopts->fs_options); 211 } 212 213 int 214 ffs_parse_opts(const char *option, fsinfo_t *fsopts) 215 { 216 ffs_opt_t *ffs_opts = fsopts->fs_specific; 217 option_t *ffs_options = fsopts->fs_options; 218 char buf[1024]; 219 220 int rv; 221 222 assert(option != NULL); 223 assert(fsopts != NULL); 224 assert(ffs_opts != NULL); 225 226 if (debug & DEBUG_FS_PARSE_OPTS) 227 printf("ffs_parse_opts: got `%s'\n", option); 228 229 rv = set_option(ffs_options, option, buf, sizeof(buf)); 230 if (rv == -1) 231 return 0; 232 233 if (ffs_options[rv].name == NULL) 234 abort(); 235 236 switch (ffs_options[rv].letter) { 237 case 'o': 238 if (strcmp(buf, "time") == 0) { 239 ffs_opts->optimization = FS_OPTTIME; 240 } else if (strcmp(buf, "space") == 0) { 241 ffs_opts->optimization = FS_OPTSPACE; 242 } else { 243 warnx("Invalid optimization `%s'", buf); 244 return 0; 245 } 246 break; 247 default: 248 break; 249 } 250 return 1; 251 } 252 253 254 void 255 ffs_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts) 256 { 257 struct fs *superblock; 258 struct timeval start; 259 260 assert(image != NULL); 261 assert(dir != NULL); 262 assert(root != NULL); 263 assert(fsopts != NULL); 264 265 if (debug & DEBUG_FS_MAKEFS) 266 printf("ffs_makefs: image %s directory %s root %p\n", 267 image, dir, root); 268 269 /* validate tree and options */ 270 TIMER_START(start); 271 ffs_validate(dir, root, fsopts); 272 TIMER_RESULTS(start, "ffs_validate"); 273 274 printf("Calculated size of `%s': %lld bytes, %lld inodes\n", 275 image, (long long)fsopts->size, (long long)fsopts->inodes); 276 277 /* create image */ 278 TIMER_START(start); 279 if (ffs_create_image(image, fsopts) == -1) 280 errx(1, "Image file `%s' not created.", image); 281 TIMER_RESULTS(start, "ffs_create_image"); 282 283 fsopts->curinode = UFS_ROOTINO; 284 285 if (debug & DEBUG_FS_MAKEFS) 286 putchar('\n'); 287 288 /* populate image */ 289 printf("Populating `%s'\n", image); 290 TIMER_START(start); 291 if (! ffs_populate_dir(dir, root, fsopts)) 292 errx(1, "Image file `%s' not populated.", image); 293 TIMER_RESULTS(start, "ffs_populate_dir"); 294 295 /* ensure no outstanding buffers remain */ 296 if (debug & DEBUG_FS_MAKEFS) 297 bcleanup(); 298 299 /* update various superblock parameters */ 300 superblock = fsopts->superblock; 301 superblock->fs_fmod = 0; 302 superblock->fs_old_cstotal.cs_ndir = superblock->fs_cstotal.cs_ndir; 303 superblock->fs_old_cstotal.cs_nbfree = superblock->fs_cstotal.cs_nbfree; 304 superblock->fs_old_cstotal.cs_nifree = superblock->fs_cstotal.cs_nifree; 305 superblock->fs_old_cstotal.cs_nffree = superblock->fs_cstotal.cs_nffree; 306 307 /* write out superblock; image is now complete */ 308 ffs_write_superblock(fsopts->superblock, fsopts); 309 if (close(fsopts->fd) == -1) 310 err(1, "Closing `%s'", image); 311 fsopts->fd = -1; 312 printf("Image `%s' complete\n", image); 313 } 314 315 /* end of public functions */ 316 317 318 static void 319 ffs_validate(const char *dir, fsnode *root, fsinfo_t *fsopts) 320 { 321 int32_t ncg = 1; 322 #ifdef notyet 323 int32_t spc, nspf, ncyl, fssize; 324 #endif 325 ffs_opt_t *ffs_opts = fsopts->fs_specific; 326 327 assert(dir != NULL); 328 assert(root != NULL); 329 assert(fsopts != NULL); 330 assert(ffs_opts != NULL); 331 332 if (debug & DEBUG_FS_VALIDATE) { 333 printf("ffs_validate: before defaults set:\n"); 334 ffs_dump_fsinfo(fsopts); 335 } 336 337 /* set FFS defaults */ 338 if (fsopts->sectorsize == -1) 339 fsopts->sectorsize = DFL_SECSIZE; 340 if (ffs_opts->fsize == -1) 341 ffs_opts->fsize = MAX(DFL_FRAGSIZE, fsopts->sectorsize); 342 if (ffs_opts->bsize == -1) 343 ffs_opts->bsize = MIN(DFL_BLKSIZE, 8 * ffs_opts->fsize); 344 if (ffs_opts->cpg == -1) 345 ffs_opts->cpg = DFL_CYLSPERGROUP; 346 else 347 ffs_opts->cpgflg = 1; 348 /* fsopts->density is set below */ 349 if (ffs_opts->nsectors == -1) 350 ffs_opts->nsectors = DFL_NSECTORS; 351 if (ffs_opts->minfree == -1) 352 ffs_opts->minfree = MINFREE; 353 if (ffs_opts->optimization == -1) 354 ffs_opts->optimization = DEFAULTOPT; 355 if (ffs_opts->maxcontig == -1) 356 ffs_opts->maxcontig = 357 MAX(1, MIN(MAXPHYS, FFS_MAXBSIZE) / ffs_opts->bsize); 358 /* XXX ondisk32 */ 359 if (ffs_opts->maxbpg == -1) 360 ffs_opts->maxbpg = ffs_opts->bsize / sizeof(int32_t); 361 if (ffs_opts->avgfilesize == -1) 362 ffs_opts->avgfilesize = AVFILESIZ; 363 if (ffs_opts->avgfpdir == -1) 364 ffs_opts->avgfpdir = AFPDIR; 365 366 if (fsopts->maxsize > 0 && 367 roundup(fsopts->minsize, ffs_opts->bsize) > fsopts->maxsize) 368 errx(1, "`%s' minsize of %lld rounded up to ffs bsize of %d " 369 "exceeds maxsize %lld. Lower bsize, or round the minimum " 370 "and maximum sizes to bsize.", dir, 371 (long long)fsopts->minsize, ffs_opts->bsize, 372 (long long)fsopts->maxsize); 373 374 /* calculate size of tree */ 375 ffs_size_dir(root, fsopts); 376 fsopts->inodes += UFS_ROOTINO; /* include first two inodes */ 377 378 if (debug & DEBUG_FS_VALIDATE) 379 printf("ffs_validate: size of tree: %lld bytes, %lld inodes\n", 380 (long long)fsopts->size, (long long)fsopts->inodes); 381 382 /* add requested slop */ 383 fsopts->size += fsopts->freeblocks; 384 fsopts->inodes += fsopts->freefiles; 385 if (fsopts->freefilepc > 0) 386 fsopts->inodes = 387 fsopts->inodes * (100 + fsopts->freefilepc) / 100; 388 if (fsopts->freeblockpc > 0) 389 fsopts->size = 390 fsopts->size * (100 + fsopts->freeblockpc) / 100; 391 392 /* add space needed for superblocks */ 393 /* 394 * The old SBOFF (SBLOCK_UFS1) is used here because makefs is 395 * typically used for small filesystems where space matters. 396 * XXX make this an option. 397 */ 398 fsopts->size += (SBLOCK_UFS1 + SBLOCKSIZE) * ncg; 399 /* add space needed to store inodes, x3 for blockmaps, etc */ 400 if (ffs_opts->version == 1) 401 fsopts->size += ncg * DINODE1_SIZE * 402 roundup(fsopts->inodes / ncg, 403 ffs_opts->bsize / DINODE1_SIZE); 404 else 405 fsopts->size += ncg * DINODE2_SIZE * 406 roundup(fsopts->inodes / ncg, 407 ffs_opts->bsize / DINODE2_SIZE); 408 409 /* add minfree */ 410 if (ffs_opts->minfree > 0) 411 fsopts->size = 412 fsopts->size * (100 + ffs_opts->minfree) / 100; 413 /* 414 * XXX any other fs slop to add, such as csum's, bitmaps, etc ?? 415 */ 416 417 if (fsopts->size < fsopts->minsize) /* ensure meets minimum size */ 418 fsopts->size = fsopts->minsize; 419 420 /* round up to the next block */ 421 fsopts->size = roundup(fsopts->size, ffs_opts->bsize); 422 423 /* round up to requested block size, if any */ 424 if (fsopts->roundup > 0) 425 fsopts->size = roundup(fsopts->size, fsopts->roundup); 426 427 /* calculate density if necessary */ 428 if (ffs_opts->density == -1) 429 ffs_opts->density = fsopts->size / fsopts->inodes + 1; 430 431 if (debug & DEBUG_FS_VALIDATE) { 432 printf("ffs_validate: after defaults set:\n"); 433 ffs_dump_fsinfo(fsopts); 434 printf("ffs_validate: dir %s; %lld bytes, %lld inodes\n", 435 dir, (long long)fsopts->size, (long long)fsopts->inodes); 436 } 437 /* now check calculated sizes vs requested sizes */ 438 if (fsopts->maxsize > 0 && fsopts->size > fsopts->maxsize) { 439 errx(1, "`%s' size of %lld is larger than the maxsize of %lld.", 440 dir, (long long)fsopts->size, (long long)fsopts->maxsize); 441 } 442 } 443 444 445 static void 446 ffs_dump_fsinfo(fsinfo_t *f) 447 { 448 449 ffs_opt_t *fs = f->fs_specific; 450 451 printf("fsopts at %p\n", f); 452 453 printf("\tsize %lld, inodes %lld, curinode %u\n", 454 (long long)f->size, (long long)f->inodes, f->curinode); 455 456 printf("\tminsize %lld, maxsize %lld\n", 457 (long long)f->minsize, (long long)f->maxsize); 458 printf("\tfree files %lld, freefile %% %d\n", 459 (long long)f->freefiles, f->freefilepc); 460 printf("\tfree blocks %lld, freeblock %% %d\n", 461 (long long)f->freeblocks, f->freeblockpc); 462 printf("\tneedswap %d, sectorsize %d\n", f->needswap, f->sectorsize); 463 464 printf("\tbsize %d, fsize %d, cpg %d, density %d\n", 465 fs->bsize, fs->fsize, fs->cpg, fs->density); 466 printf("\tnsectors %d, rpm %d, minfree %d\n", 467 fs->nsectors, fs->rpm, fs->minfree); 468 printf("\tmaxcontig %d, maxbpg %d\n", 469 fs->maxcontig, fs->maxbpg); 470 printf("\toptimization %s\n", 471 fs->optimization == FS_OPTSPACE ? "space" : "time"); 472 } 473 474 475 static int 476 ffs_create_image(const char *image, fsinfo_t *fsopts) 477 { 478 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 479 struct statvfs sfs; 480 #endif 481 struct fs *fs; 482 char *buf; 483 int i, bufsize; 484 off_t bufrem; 485 int oflags = O_RDWR | O_CREAT; 486 time_t tstamp; 487 488 assert (image != NULL); 489 assert (fsopts != NULL); 490 491 /* create image */ 492 if (fsopts->offset == 0) 493 oflags |= O_TRUNC; 494 if ((fsopts->fd = open(image, oflags, 0666)) == -1) { 495 warn("Can't open `%s' for writing", image); 496 return (-1); 497 } 498 499 /* zero image */ 500 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 501 if (fstatvfs(fsopts->fd, &sfs) == -1) { 502 #endif 503 bufsize = 8192; 504 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 505 warn("can't fstatvfs `%s', using default %d byte chunk", 506 image, bufsize); 507 } else 508 bufsize = sfs.f_iosize; 509 #endif 510 bufrem = fsopts->size; 511 if (fsopts->sparse) { 512 if (ftruncate(fsopts->fd, bufrem) == -1) { 513 warn("sparse option disabled."); 514 fsopts->sparse = 0; 515 } 516 } 517 if (fsopts->sparse) { 518 /* File truncated at bufrem. Remaining is 0 */ 519 bufrem = 0; 520 buf = NULL; 521 } else { 522 if (debug & DEBUG_FS_CREATE_IMAGE) 523 printf("zero-ing image `%s', %lld sectors, " 524 "using %d byte chunks\n", image, (long long)bufrem, 525 bufsize); 526 buf = ecalloc(1, bufsize); 527 } 528 529 if (fsopts->offset != 0) 530 if (lseek(fsopts->fd, fsopts->offset, SEEK_SET) == -1) { 531 warn("can't seek"); 532 free(buf); 533 return -1; 534 } 535 536 while (bufrem > 0) { 537 i = write(fsopts->fd, buf, MIN(bufsize, bufrem)); 538 if (i == -1) { 539 warn("zeroing image, %lld bytes to go", 540 (long long)bufrem); 541 free(buf); 542 return (-1); 543 } 544 bufrem -= i; 545 } 546 if (buf) 547 free(buf); 548 549 /* make the file system */ 550 if (debug & DEBUG_FS_CREATE_IMAGE) 551 printf("calling mkfs(\"%s\", ...)\n", image); 552 553 if (stampst.st_ino != 0) 554 tstamp = stampst.st_ctime; 555 else 556 tstamp = start_time.tv_sec; 557 558 srandom(tstamp); 559 560 fs = ffs_mkfs(image, fsopts, tstamp); 561 fsopts->superblock = (void *)fs; 562 if (debug & DEBUG_FS_CREATE_IMAGE) { 563 time_t t; 564 565 t = (time_t)((struct fs *)fsopts->superblock)->fs_time; 566 printf("mkfs returned %p; fs_time %s", 567 fsopts->superblock, ctime(&t)); 568 printf("fs totals: nbfree %lld, nffree %lld, nifree %lld, ndir %lld\n", 569 (long long)fs->fs_cstotal.cs_nbfree, 570 (long long)fs->fs_cstotal.cs_nffree, 571 (long long)fs->fs_cstotal.cs_nifree, 572 (long long)fs->fs_cstotal.cs_ndir); 573 } 574 575 if (fs->fs_cstotal.cs_nifree + UFS_ROOTINO < fsopts->inodes) { 576 warnx( 577 "Image file `%s' has %lld free inodes; %lld are required.", 578 image, 579 (long long)(fs->fs_cstotal.cs_nifree + UFS_ROOTINO), 580 (long long)fsopts->inodes); 581 return (-1); 582 } 583 return (fsopts->fd); 584 } 585 586 587 static void 588 ffs_size_dir(fsnode *root, fsinfo_t *fsopts) 589 { 590 struct direct tmpdir; 591 fsnode * node; 592 int curdirsize, this; 593 ffs_opt_t *ffs_opts = fsopts->fs_specific; 594 595 /* node may be NULL (empty directory) */ 596 assert(fsopts != NULL); 597 assert(ffs_opts != NULL); 598 599 if (debug & DEBUG_FS_SIZE_DIR) 600 printf("ffs_size_dir: entry: bytes %lld inodes %lld\n", 601 (long long)fsopts->size, (long long)fsopts->inodes); 602 603 #define ADDDIRENT(e) do { \ 604 tmpdir.d_namlen = strlen((e)); \ 605 this = DIRSIZ_SWAP(0, &tmpdir, 0); \ 606 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 607 printf("ADDDIRENT: was: %s (%d) this %d cur %d\n", \ 608 e, tmpdir.d_namlen, this, curdirsize); \ 609 if (this + curdirsize > roundup(curdirsize, DIRBLKSIZ)) \ 610 curdirsize = roundup(curdirsize, DIRBLKSIZ); \ 611 curdirsize += this; \ 612 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 613 printf("ADDDIRENT: now: %s (%d) this %d cur %d\n", \ 614 e, tmpdir.d_namlen, this, curdirsize); \ 615 } while (0); 616 617 /* 618 * XXX this needs to take into account extra space consumed 619 * by indirect blocks, etc. 620 */ 621 #define ADDSIZE(x) do { \ 622 fsopts->size += roundup((x), ffs_opts->fsize); \ 623 } while (0); 624 625 curdirsize = 0; 626 for (node = root; node != NULL; node = node->next) { 627 ADDDIRENT(node->name); 628 if (node == root) { /* we're at "." */ 629 assert(strcmp(node->name, ".") == 0); 630 ADDDIRENT(".."); 631 } else if ((node->inode->flags & FI_SIZED) == 0) { 632 /* don't count duplicate names */ 633 node->inode->flags |= FI_SIZED; 634 if (debug & DEBUG_FS_SIZE_DIR_NODE) 635 printf("ffs_size_dir: `%s' size %lld\n", 636 node->name, 637 (long long)node->inode->st.st_size); 638 fsopts->inodes++; 639 if (node->type == S_IFREG) 640 ADDSIZE(node->inode->st.st_size); 641 if (node->type == S_IFLNK) { 642 size_t slen; 643 644 slen = strlen(node->symlink) + 1; 645 if (slen >= (ffs_opts->version == 1 ? 646 UFS1_MAXSYMLINKLEN : 647 UFS2_MAXSYMLINKLEN)) 648 ADDSIZE(slen); 649 } 650 } 651 if (node->type == S_IFDIR) 652 ffs_size_dir(node->child, fsopts); 653 } 654 ADDSIZE(curdirsize); 655 656 if (debug & DEBUG_FS_SIZE_DIR) 657 printf("ffs_size_dir: exit: size %lld inodes %lld\n", 658 (long long)fsopts->size, (long long)fsopts->inodes); 659 } 660 661 static void * 662 ffs_build_dinode1(struct ufs1_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 663 fsnode *root, fsinfo_t *fsopts) 664 { 665 size_t slen; 666 void *membuf; 667 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st; 668 669 memset(dinp, 0, sizeof(*dinp)); 670 dinp->di_mode = cur->inode->st.st_mode; 671 dinp->di_nlink = cur->inode->nlink; 672 dinp->di_size = cur->inode->st.st_size; 673 #if HAVE_STRUCT_STAT_ST_FLAGS 674 dinp->di_flags = cur->inode->st.st_flags; 675 #endif 676 dinp->di_gen = random(); 677 dinp->di_uid = cur->inode->st.st_uid; 678 dinp->di_gid = cur->inode->st.st_gid; 679 680 dinp->di_atime = st->st_atime; 681 dinp->di_mtime = st->st_mtime; 682 dinp->di_ctime = st->st_ctime; 683 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 684 dinp->di_atimensec = st->st_atimensec; 685 dinp->di_mtimensec = st->st_mtimensec; 686 dinp->di_ctimensec = st->st_ctimensec; 687 #endif 688 /* not set: di_db, di_ib, di_blocks, di_spare */ 689 690 membuf = NULL; 691 if (cur == root) { /* "."; write dirbuf */ 692 membuf = dbufp->buf; 693 dinp->di_size = dbufp->size; 694 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 695 dinp->di_size = 0; /* a device */ 696 dinp->di_rdev = 697 ufs_rw32(cur->inode->st.st_rdev, fsopts->needswap); 698 } else if (S_ISLNK(cur->type)) { /* symlink */ 699 slen = strlen(cur->symlink); 700 if (slen < UFS1_MAXSYMLINKLEN) { /* short link */ 701 memcpy(dinp->di_db, cur->symlink, slen); 702 } else 703 membuf = cur->symlink; 704 dinp->di_size = slen; 705 } 706 return membuf; 707 } 708 709 static void * 710 ffs_build_dinode2(struct ufs2_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 711 fsnode *root, fsinfo_t *fsopts) 712 { 713 size_t slen; 714 void *membuf; 715 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st; 716 717 memset(dinp, 0, sizeof(*dinp)); 718 dinp->di_mode = cur->inode->st.st_mode; 719 dinp->di_nlink = cur->inode->nlink; 720 dinp->di_size = cur->inode->st.st_size; 721 #if HAVE_STRUCT_STAT_ST_FLAGS 722 dinp->di_flags = cur->inode->st.st_flags; 723 #endif 724 dinp->di_gen = random(); 725 dinp->di_uid = cur->inode->st.st_uid; 726 dinp->di_gid = cur->inode->st.st_gid; 727 728 dinp->di_atime = st->st_atime; 729 dinp->di_mtime = st->st_mtime; 730 dinp->di_ctime = st->st_ctime; 731 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 732 dinp->di_atimensec = st->st_atimensec; 733 dinp->di_mtimensec = st->st_mtimensec; 734 dinp->di_ctimensec = st->st_ctimensec; 735 #endif 736 #if HAVE_STRUCT_STAT_BIRTHTIME 737 dinp->di_birthtime = st->st_birthtime; 738 dinp->di_birthnsec = st->st_birthtimensec; 739 #endif 740 /* not set: di_db, di_ib, di_blocks, di_spare */ 741 742 membuf = NULL; 743 if (cur == root) { /* "."; write dirbuf */ 744 membuf = dbufp->buf; 745 dinp->di_size = dbufp->size; 746 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 747 dinp->di_size = 0; /* a device */ 748 dinp->di_rdev = 749 ufs_rw64(cur->inode->st.st_rdev, fsopts->needswap); 750 } else if (S_ISLNK(cur->type)) { /* symlink */ 751 slen = strlen(cur->symlink); 752 if (slen < UFS2_MAXSYMLINKLEN) { /* short link */ 753 memcpy(dinp->di_db, cur->symlink, slen); 754 } else 755 membuf = cur->symlink; 756 dinp->di_size = slen; 757 } 758 return membuf; 759 } 760 761 static int 762 ffs_populate_dir(const char *dir, fsnode *root, fsinfo_t *fsopts) 763 { 764 fsnode *cur; 765 dirbuf_t dirbuf; 766 union dinode din; 767 void *membuf; 768 char path[MAXPATHLEN + 1]; 769 ffs_opt_t *ffs_opts = fsopts->fs_specific; 770 771 assert(dir != NULL); 772 assert(root != NULL); 773 assert(fsopts != NULL); 774 assert(ffs_opts != NULL); 775 776 (void)memset(&dirbuf, 0, sizeof(dirbuf)); 777 778 if (debug & DEBUG_FS_POPULATE) 779 printf("ffs_populate_dir: PASS 1 dir %s node %p\n", dir, root); 780 781 /* 782 * pass 1: allocate inode numbers, build directory `file' 783 */ 784 for (cur = root; cur != NULL; cur = cur->next) { 785 if ((cur->inode->flags & FI_ALLOCATED) == 0) { 786 cur->inode->flags |= FI_ALLOCATED; 787 if (cur == root && cur->parent != NULL) 788 cur->inode->ino = cur->parent->inode->ino; 789 else { 790 cur->inode->ino = fsopts->curinode; 791 fsopts->curinode++; 792 } 793 } 794 ffs_make_dirbuf(&dirbuf, cur->name, cur, fsopts->needswap); 795 if (cur == root) { /* we're at "."; add ".." */ 796 ffs_make_dirbuf(&dirbuf, "..", 797 cur->parent == NULL ? cur : cur->parent->first, 798 fsopts->needswap); 799 root->inode->nlink++; /* count my parent's link */ 800 } else if (cur->child != NULL) 801 root->inode->nlink++; /* count my child's link */ 802 803 /* 804 * XXX possibly write file and long symlinks here, 805 * ensuring that blocks get written before inodes? 806 * otoh, this isn't a real filesystem, so who 807 * cares about ordering? :-) 808 */ 809 } 810 if (debug & DEBUG_FS_POPULATE_DIRBUF) 811 ffs_dump_dirbuf(&dirbuf, dir, fsopts->needswap); 812 813 /* 814 * pass 2: write out dirbuf, then non-directories at this level 815 */ 816 if (debug & DEBUG_FS_POPULATE) 817 printf("ffs_populate_dir: PASS 2 dir %s\n", dir); 818 for (cur = root; cur != NULL; cur = cur->next) { 819 if (cur->inode->flags & FI_WRITTEN) 820 continue; /* skip hard-linked entries */ 821 cur->inode->flags |= FI_WRITTEN; 822 823 if (cur->contents == NULL) { 824 if (snprintf(path, sizeof(path), "%s/%s/%s", cur->root, 825 cur->path, cur->name) >= (int)sizeof(path)) 826 errx(1, "Pathname too long."); 827 } 828 829 if (cur->child != NULL) 830 continue; /* child creates own inode */ 831 832 /* build on-disk inode */ 833 if (ffs_opts->version == 1) 834 membuf = ffs_build_dinode1(&din.ffs1_din, &dirbuf, cur, 835 root, fsopts); 836 else 837 membuf = ffs_build_dinode2(&din.ffs2_din, &dirbuf, cur, 838 root, fsopts); 839 840 if (debug & DEBUG_FS_POPULATE_NODE) { 841 printf("ffs_populate_dir: writing ino %d, %s", 842 cur->inode->ino, inode_type(cur->type)); 843 if (cur->inode->nlink > 1) 844 printf(", nlink %d", cur->inode->nlink); 845 putchar('\n'); 846 } 847 848 if (membuf != NULL) { 849 ffs_write_file(&din, cur->inode->ino, membuf, fsopts); 850 } else if (S_ISREG(cur->type)) { 851 ffs_write_file(&din, cur->inode->ino, 852 (cur->contents) ? cur->contents : path, fsopts); 853 } else { 854 assert (! S_ISDIR(cur->type)); 855 ffs_write_inode(&din, cur->inode->ino, fsopts); 856 } 857 } 858 859 /* 860 * pass 3: write out sub-directories 861 */ 862 if (debug & DEBUG_FS_POPULATE) 863 printf("ffs_populate_dir: PASS 3 dir %s\n", dir); 864 for (cur = root; cur != NULL; cur = cur->next) { 865 if (cur->child == NULL) 866 continue; 867 if ((size_t)snprintf(path, sizeof(path), "%s/%s", dir, 868 cur->name) >= sizeof(path)) 869 errx(1, "Pathname too long."); 870 if (! ffs_populate_dir(path, cur->child, fsopts)) 871 return (0); 872 } 873 874 if (debug & DEBUG_FS_POPULATE) 875 printf("ffs_populate_dir: DONE dir %s\n", dir); 876 877 /* cleanup */ 878 if (dirbuf.buf != NULL) 879 free(dirbuf.buf); 880 return (1); 881 } 882 883 884 static void 885 ffs_write_file(union dinode *din, uint32_t ino, void *buf, fsinfo_t *fsopts) 886 { 887 int isfile, ffd; 888 char *fbuf, *p; 889 off_t bufleft, chunk, offset; 890 ssize_t nread; 891 struct inode in; 892 struct buf * bp; 893 ffs_opt_t *ffs_opts = fsopts->fs_specific; 894 struct vnode vp = { fsopts, NULL }; 895 896 assert (din != NULL); 897 assert (buf != NULL); 898 assert (fsopts != NULL); 899 assert (ffs_opts != NULL); 900 901 isfile = S_ISREG(DIP(din, mode)); 902 fbuf = NULL; 903 ffd = -1; 904 p = NULL; 905 906 in.i_fs = (struct fs *)fsopts->superblock; 907 in.i_devvp = &vp; 908 909 if (debug & DEBUG_FS_WRITE_FILE) { 910 printf( 911 "ffs_write_file: ino %u, din %p, isfile %d, %s, size %lld", 912 ino, din, isfile, inode_type(DIP(din, mode) & S_IFMT), 913 (long long)DIP(din, size)); 914 if (isfile) 915 printf(", file '%s'\n", (char *)buf); 916 else 917 printf(", buffer %p\n", buf); 918 } 919 920 in.i_number = ino; 921 in.i_size = DIP(din, size); 922 if (ffs_opts->version == 1) 923 memcpy(&in.i_din.ffs1_din, &din->ffs1_din, 924 sizeof(in.i_din.ffs1_din)); 925 else 926 memcpy(&in.i_din.ffs2_din, &din->ffs2_din, 927 sizeof(in.i_din.ffs2_din)); 928 929 if (DIP(din, size) == 0) 930 goto write_inode_and_leave; /* mmm, cheating */ 931 932 if (isfile) { 933 fbuf = emalloc(ffs_opts->bsize); 934 if ((ffd = open((char *)buf, O_RDONLY, 0444)) == -1) { 935 err(EXIT_FAILURE, "Can't open `%s' for reading", (char *)buf); 936 } 937 } else { 938 p = buf; 939 } 940 941 chunk = 0; 942 for (bufleft = DIP(din, size); bufleft > 0; bufleft -= chunk) { 943 chunk = MIN(bufleft, ffs_opts->bsize); 944 if (!isfile) 945 ; 946 else if ((nread = read(ffd, fbuf, chunk)) == -1) 947 err(EXIT_FAILURE, "Reading `%s', %lld bytes to go", 948 (char *)buf, (long long)bufleft); 949 else if (nread != chunk) 950 errx(EXIT_FAILURE, "Reading `%s', %lld bytes to go, " 951 "read %zd bytes, expected %ju bytes, does " 952 "metalog size= attribute mismatch source size?", 953 (char *)buf, (long long)bufleft, nread, 954 (uintmax_t)chunk); 955 else 956 p = fbuf; 957 offset = DIP(din, size) - bufleft; 958 if (debug & DEBUG_FS_WRITE_FILE_BLOCK) 959 printf( 960 "ffs_write_file: write %p offset %lld size %lld left %lld\n", 961 p, (long long)offset, 962 (long long)chunk, (long long)bufleft); 963 /* 964 * XXX if holey support is desired, do the check here 965 * 966 * XXX might need to write out last bit in fragroundup 967 * sized chunk. however, ffs_balloc() handles this for us 968 */ 969 errno = ffs_balloc(&in, offset, chunk, &bp); 970 bad_ffs_write_file: 971 if (errno != 0) 972 err(1, 973 "Writing inode %d (%s), bytes %lld + %lld", 974 ino, 975 isfile ? (char *)buf : 976 inode_type(DIP(din, mode) & S_IFMT), 977 (long long)offset, (long long)chunk); 978 memcpy(bp->b_data, p, chunk); 979 errno = bwrite(bp); 980 if (errno != 0) 981 goto bad_ffs_write_file; 982 brelse(bp); 983 if (!isfile) 984 p += chunk; 985 } 986 987 write_inode_and_leave: 988 ffs_write_inode(&in.i_din, in.i_number, fsopts); 989 if (fbuf) 990 free(fbuf); 991 if (ffd != -1) 992 close(ffd); 993 } 994 995 996 static void 997 ffs_dump_dirbuf(dirbuf_t *dbuf, const char *dir, int needswap) 998 { 999 doff_t i; 1000 struct direct *de; 1001 uint16_t reclen; 1002 1003 assert (dbuf != NULL); 1004 assert (dir != NULL); 1005 printf("ffs_dump_dirbuf: dir %s size %d cur %d\n", 1006 dir, dbuf->size, dbuf->cur); 1007 1008 for (i = 0; i < dbuf->size; ) { 1009 de = (struct direct *)(dbuf->buf + i); 1010 reclen = ufs_rw16(de->d_reclen, needswap); 1011 printf( 1012 " inode %4d %7s offset %4d reclen %3d namlen %3d name %s\n", 1013 ufs_rw32(de->d_ino, needswap), 1014 inode_type(DTTOIF(de->d_type)), i, reclen, 1015 de->d_namlen, de->d_name); 1016 i += reclen; 1017 assert(reclen > 0); 1018 } 1019 } 1020 1021 static void 1022 ffs_make_dirbuf(dirbuf_t *dbuf, const char *name, fsnode *node, int needswap) 1023 { 1024 struct direct de, *dp; 1025 uint16_t llen, reclen; 1026 u_char *newbuf; 1027 1028 assert (dbuf != NULL); 1029 assert (name != NULL); 1030 assert (node != NULL); 1031 /* create direct entry */ 1032 (void)memset(&de, 0, sizeof(de)); 1033 de.d_ino = ufs_rw32(node->inode->ino, needswap); 1034 de.d_type = IFTODT(node->type); 1035 de.d_namlen = (uint8_t)strlen(name); 1036 strcpy(de.d_name, name); 1037 reclen = DIRSIZ_SWAP(0, &de, needswap); 1038 de.d_reclen = ufs_rw16(reclen, needswap); 1039 1040 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1041 llen = 0; 1042 if (dp != NULL) 1043 llen = DIRSIZ_SWAP(0, dp, needswap); 1044 1045 if (debug & DEBUG_FS_MAKE_DIRBUF) 1046 printf( 1047 "ffs_make_dirbuf: dbuf siz %d cur %d lastlen %d\n" 1048 " ino %d type %d reclen %d namlen %d name %.30s\n", 1049 dbuf->size, dbuf->cur, llen, 1050 ufs_rw32(de.d_ino, needswap), de.d_type, reclen, 1051 de.d_namlen, de.d_name); 1052 1053 if (reclen + dbuf->cur + llen > roundup(dbuf->size, DIRBLKSIZ)) { 1054 if (debug & DEBUG_FS_MAKE_DIRBUF) 1055 printf("ffs_make_dirbuf: growing buf to %d\n", 1056 dbuf->size + DIRBLKSIZ); 1057 newbuf = erealloc(dbuf->buf, dbuf->size + DIRBLKSIZ); 1058 dbuf->buf = newbuf; 1059 dbuf->size += DIRBLKSIZ; 1060 memset(dbuf->buf + dbuf->size - DIRBLKSIZ, 0, DIRBLKSIZ); 1061 dbuf->cur = dbuf->size - DIRBLKSIZ; 1062 } else if (dp) { /* shrink end of previous */ 1063 dp->d_reclen = ufs_rw16(llen,needswap); 1064 dbuf->cur += llen; 1065 } 1066 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1067 memcpy(dp, &de, reclen); 1068 dp->d_reclen = ufs_rw16(dbuf->size - dbuf->cur, needswap); 1069 } 1070 1071 /* 1072 * cribbed from sys/ufs/ffs/ffs_alloc.c 1073 */ 1074 static void 1075 ffs_write_inode(union dinode *dp, uint32_t ino, const fsinfo_t *fsopts) 1076 { 1077 char *buf; 1078 struct ufs1_dinode *dp1; 1079 struct ufs2_dinode *dp2, *dip; 1080 struct cg *cgp; 1081 struct fs *fs; 1082 int cg, cgino; 1083 uint32_t i; 1084 daddr_t d; 1085 char sbbuf[FFS_MAXBSIZE]; 1086 uint32_t initediblk; 1087 ffs_opt_t *ffs_opts = fsopts->fs_specific; 1088 1089 assert (dp != NULL); 1090 assert (ino > 0); 1091 assert (fsopts != NULL); 1092 assert (ffs_opts != NULL); 1093 1094 fs = (struct fs *)fsopts->superblock; 1095 cg = ino_to_cg(fs, ino); 1096 cgino = ino % fs->fs_ipg; 1097 if (debug & DEBUG_FS_WRITE_INODE) 1098 printf("ffs_write_inode: din %p ino %u cg %d cgino %d\n", 1099 dp, ino, cg, cgino); 1100 1101 ffs_rdfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1102 fsopts); 1103 cgp = (struct cg *)sbbuf; 1104 if (!cg_chkmagic_swap(cgp, fsopts->needswap)) 1105 errx(1, "ffs_write_inode: cg %d: bad magic number", cg); 1106 1107 assert (isclr(cg_inosused_swap(cgp, fsopts->needswap), cgino)); 1108 1109 buf = emalloc(fs->fs_bsize); 1110 dp1 = (struct ufs1_dinode *)buf; 1111 dp2 = (struct ufs2_dinode *)buf; 1112 1113 if (fs->fs_cstotal.cs_nifree == 0) 1114 errx(1, "ffs_write_inode: fs out of inodes for ino %u", 1115 ino); 1116 if (fs->fs_cs(fs, cg).cs_nifree == 0) 1117 errx(1, 1118 "ffs_write_inode: cg %d out of inodes for ino %u", 1119 cg, ino); 1120 setbit(cg_inosused_swap(cgp, fsopts->needswap), cgino); 1121 ufs_add32(cgp->cg_cs.cs_nifree, -1, fsopts->needswap); 1122 fs->fs_cstotal.cs_nifree--; 1123 fs->fs_cs(fs, cg).cs_nifree--; 1124 if (S_ISDIR(DIP(dp, mode))) { 1125 ufs_add32(cgp->cg_cs.cs_ndir, 1, fsopts->needswap); 1126 fs->fs_cstotal.cs_ndir++; 1127 fs->fs_cs(fs, cg).cs_ndir++; 1128 } 1129 1130 /* 1131 * Initialize inode blocks on the fly for UFS2. 1132 */ 1133 initediblk = ufs_rw32(cgp->cg_initediblk, fsopts->needswap); 1134 while (ffs_opts->version == 2 && cgino + INOPB(fs) > initediblk && 1135 initediblk < ufs_rw32(cgp->cg_niblk, fsopts->needswap)) { 1136 memset(buf, 0, fs->fs_bsize); 1137 dip = (struct ufs2_dinode *)buf; 1138 for (i = 0; i < INOPB(fs); i++) { 1139 dip->di_gen = random(); 1140 dip++; 1141 } 1142 ffs_wtfs(fsbtodb(fs, ino_to_fsba(fs, 1143 cg * fs->fs_ipg + initediblk)), 1144 fs->fs_bsize, buf, fsopts); 1145 initediblk += INOPB(fs); 1146 cgp->cg_initediblk = ufs_rw32(initediblk, fsopts->needswap); 1147 } 1148 1149 1150 ffs_wtfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1151 fsopts); 1152 1153 /* now write inode */ 1154 d = fsbtodb(fs, ino_to_fsba(fs, ino)); 1155 ffs_rdfs(d, fs->fs_bsize, buf, fsopts); 1156 if (fsopts->needswap) { 1157 if (ffs_opts->version == 1) 1158 ffs_dinode1_swap(&dp->ffs1_din, 1159 &dp1[ino_to_fsbo(fs, ino)]); 1160 else 1161 ffs_dinode2_swap(&dp->ffs2_din, 1162 &dp2[ino_to_fsbo(fs, ino)]); 1163 } else { 1164 if (ffs_opts->version == 1) 1165 dp1[ino_to_fsbo(fs, ino)] = dp->ffs1_din; 1166 else 1167 dp2[ino_to_fsbo(fs, ino)] = dp->ffs2_din; 1168 } 1169 ffs_wtfs(d, fs->fs_bsize, buf, fsopts); 1170 free(buf); 1171 } 1172 1173 void 1174 panic(const char *fmt, ...) 1175 { 1176 va_list ap; 1177 1178 va_start(ap, fmt); 1179 vwarnx(fmt, ap); 1180 va_end(ap); 1181 exit(1); 1182 } 1183