1 /* $NetBSD: ffs.c,v 1.45 2011/10/09 22:49:26 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2001 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 * Copyright (c) 1982, 1986, 1989, 1993 39 * The Regents of the University of California. All rights reserved. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * @(#)ffs_alloc.c 8.19 (Berkeley) 7/13/95 66 */ 67 68 #include <sys/cdefs.h> 69 __FBSDID("$FreeBSD$"); 70 71 #include <sys/param.h> 72 73 #include <sys/mount.h> 74 75 #include <assert.h> 76 #include <errno.h> 77 #include <fcntl.h> 78 #include <stdarg.h> 79 #include <stdint.h> 80 #include <stdio.h> 81 #include <stdlib.h> 82 #include <string.h> 83 #include <time.h> 84 #include <unistd.h> 85 #include <util.h> 86 87 #include "makefs.h" 88 #include "ffs.h" 89 90 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 91 #include <sys/statvfs.h> 92 #endif 93 94 #include <ufs/ufs/dinode.h> 95 #include <ufs/ufs/dir.h> 96 #include <ufs/ffs/fs.h> 97 98 99 #include "ffs/ufs_bswap.h" 100 #include "ffs/ufs_inode.h" 101 #include "ffs/newfs_extern.h" 102 #include "ffs/ffs_extern.h" 103 104 #undef DIP 105 #define DIP(dp, field) \ 106 ((ffs_opts->version == 1) ? \ 107 (dp)->ffs1_din.di_##field : (dp)->ffs2_din.di_##field) 108 109 /* 110 * Various file system defaults (cribbed from newfs(8)). 111 */ 112 #define DFL_FRAGSIZE 1024 /* fragment size */ 113 #define DFL_BLKSIZE 8192 /* block size */ 114 #define DFL_SECSIZE 512 /* sector size */ 115 #define DFL_CYLSPERGROUP 65536 /* cylinders per group */ 116 #define DFL_FRAGSPERINODE 4 /* fragments per inode */ 117 #define DFL_ROTDELAY 0 /* rotational delay */ 118 #define DFL_NRPOS 1 /* rotational positions */ 119 #define DFL_RPM 3600 /* rpm of disk */ 120 #define DFL_NSECTORS 64 /* # of sectors */ 121 #define DFL_NTRACKS 16 /* # of tracks */ 122 123 124 typedef struct { 125 u_char *buf; /* buf for directory */ 126 doff_t size; /* full size of buf */ 127 doff_t cur; /* offset of current entry */ 128 } dirbuf_t; 129 130 131 static int ffs_create_image(const char *, fsinfo_t *); 132 static void ffs_dump_fsinfo(fsinfo_t *); 133 static void ffs_dump_dirbuf(dirbuf_t *, const char *, int); 134 static void ffs_make_dirbuf(dirbuf_t *, const char *, fsnode *, int); 135 static int ffs_populate_dir(const char *, fsnode *, fsinfo_t *); 136 static void ffs_size_dir(fsnode *, fsinfo_t *); 137 static void ffs_validate(const char *, fsnode *, fsinfo_t *); 138 static void ffs_write_file(union dinode *, uint32_t, void *, fsinfo_t *); 139 static void ffs_write_inode(union dinode *, uint32_t, const fsinfo_t *); 140 static void *ffs_build_dinode1(struct ufs1_dinode *, dirbuf_t *, fsnode *, 141 fsnode *, fsinfo_t *); 142 static void *ffs_build_dinode2(struct ufs2_dinode *, dirbuf_t *, fsnode *, 143 fsnode *, fsinfo_t *); 144 145 146 int sectorsize; /* XXX: for buf.c::getblk() */ 147 /* publicly visible functions */ 148 149 void 150 ffs_prep_opts(fsinfo_t *fsopts) 151 { 152 ffs_opt_t *ffs_opts = ecalloc(1, sizeof(*ffs_opts)); 153 154 const option_t ffs_options[] = { 155 { 'b', "bsize", &ffs_opts->bsize, OPT_INT32, 156 1, INT_MAX, "block size" }, 157 { 'f', "fsize", &ffs_opts->fsize, OPT_INT32, 158 1, INT_MAX, "fragment size" }, 159 { 'd', "density", &ffs_opts->density, OPT_INT32, 160 1, INT_MAX, "bytes per inode" }, 161 { 'm', "minfree", &ffs_opts->minfree, OPT_INT32, 162 0, 99, "minfree" }, 163 { 'M', "maxbpg", &ffs_opts->maxbpg, OPT_INT32, 164 1, INT_MAX, "max blocks per file in a cg" }, 165 { 'a', "avgfilesize", &ffs_opts->avgfilesize, OPT_INT32, 166 1, INT_MAX, "expected average file size" }, 167 { 'n', "avgfpdir", &ffs_opts->avgfpdir, OPT_INT32, 168 1, INT_MAX, "expected # of files per directory" }, 169 { 'x', "extent", &ffs_opts->maxbsize, OPT_INT32, 170 1, INT_MAX, "maximum # extent size" }, 171 { 'g', "maxbpcg", &ffs_opts->maxblkspercg, OPT_INT32, 172 1, INT_MAX, "max # of blocks per group" }, 173 { 'v', "version", &ffs_opts->version, OPT_INT32, 174 1, 2, "UFS version" }, 175 { 'o', "optimization", NULL, OPT_STRBUF, 176 0, 0, "Optimization (time|space)" }, 177 { 'l', "label", ffs_opts->label, OPT_STRARRAY, 178 1, sizeof(ffs_opts->label), "UFS label" }, 179 { .name = NULL } 180 }; 181 182 ffs_opts->bsize= -1; 183 ffs_opts->fsize= -1; 184 ffs_opts->cpg= -1; 185 ffs_opts->density= -1; 186 ffs_opts->minfree= -1; 187 ffs_opts->optimization= -1; 188 ffs_opts->maxcontig= -1; 189 ffs_opts->maxbpg= -1; 190 ffs_opts->avgfilesize= -1; 191 ffs_opts->avgfpdir= -1; 192 ffs_opts->version = 1; 193 194 fsopts->fs_specific = ffs_opts; 195 fsopts->fs_options = copy_opts(ffs_options); 196 } 197 198 void 199 ffs_cleanup_opts(fsinfo_t *fsopts) 200 { 201 free(fsopts->fs_specific); 202 free(fsopts->fs_options); 203 } 204 205 int 206 ffs_parse_opts(const char *option, fsinfo_t *fsopts) 207 { 208 ffs_opt_t *ffs_opts = fsopts->fs_specific; 209 option_t *ffs_options = fsopts->fs_options; 210 char buf[1024]; 211 212 int rv; 213 214 assert(option != NULL); 215 assert(fsopts != NULL); 216 assert(ffs_opts != NULL); 217 218 if (debug & DEBUG_FS_PARSE_OPTS) 219 printf("ffs_parse_opts: got `%s'\n", option); 220 221 rv = set_option(ffs_options, option, buf, sizeof(buf)); 222 if (rv == -1) 223 return 0; 224 225 if (ffs_options[rv].name == NULL) 226 abort(); 227 228 switch (ffs_options[rv].letter) { 229 case 'o': 230 if (strcmp(buf, "time") == 0) { 231 ffs_opts->optimization = FS_OPTTIME; 232 } else if (strcmp(buf, "space") == 0) { 233 ffs_opts->optimization = FS_OPTSPACE; 234 } else { 235 warnx("Invalid optimization `%s'", buf); 236 return 0; 237 } 238 break; 239 default: 240 break; 241 } 242 return 1; 243 } 244 245 246 void 247 ffs_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts) 248 { 249 struct fs *superblock; 250 struct timeval start; 251 252 assert(image != NULL); 253 assert(dir != NULL); 254 assert(root != NULL); 255 assert(fsopts != NULL); 256 257 if (debug & DEBUG_FS_MAKEFS) 258 printf("ffs_makefs: image %s directory %s root %p\n", 259 image, dir, root); 260 261 /* validate tree and options */ 262 TIMER_START(start); 263 ffs_validate(dir, root, fsopts); 264 TIMER_RESULTS(start, "ffs_validate"); 265 266 printf("Calculated size of `%s': %lld bytes, %lld inodes\n", 267 image, (long long)fsopts->size, (long long)fsopts->inodes); 268 269 /* create image */ 270 TIMER_START(start); 271 if (ffs_create_image(image, fsopts) == -1) 272 errx(1, "Image file `%s' not created.", image); 273 TIMER_RESULTS(start, "ffs_create_image"); 274 275 fsopts->curinode = UFS_ROOTINO; 276 277 if (debug & DEBUG_FS_MAKEFS) 278 putchar('\n'); 279 280 /* populate image */ 281 printf("Populating `%s'\n", image); 282 TIMER_START(start); 283 if (! ffs_populate_dir(dir, root, fsopts)) 284 errx(1, "Image file `%s' not populated.", image); 285 TIMER_RESULTS(start, "ffs_populate_dir"); 286 287 /* ensure no outstanding buffers remain */ 288 if (debug & DEBUG_FS_MAKEFS) 289 bcleanup(); 290 291 /* update various superblock parameters */ 292 superblock = fsopts->superblock; 293 superblock->fs_fmod = 0; 294 superblock->fs_old_cstotal.cs_ndir = superblock->fs_cstotal.cs_ndir; 295 superblock->fs_old_cstotal.cs_nbfree = superblock->fs_cstotal.cs_nbfree; 296 superblock->fs_old_cstotal.cs_nifree = superblock->fs_cstotal.cs_nifree; 297 superblock->fs_old_cstotal.cs_nffree = superblock->fs_cstotal.cs_nffree; 298 299 /* write out superblock; image is now complete */ 300 ffs_write_superblock(fsopts->superblock, fsopts); 301 if (close(fsopts->fd) == -1) 302 err(1, "Closing `%s'", image); 303 fsopts->fd = -1; 304 printf("Image `%s' complete\n", image); 305 } 306 307 /* end of public functions */ 308 309 310 static void 311 ffs_validate(const char *dir, fsnode *root, fsinfo_t *fsopts) 312 { 313 int32_t ncg = 1; 314 #if notyet 315 int32_t spc, nspf, ncyl, fssize; 316 #endif 317 ffs_opt_t *ffs_opts = fsopts->fs_specific; 318 319 assert(dir != NULL); 320 assert(root != NULL); 321 assert(fsopts != NULL); 322 assert(ffs_opts != NULL); 323 324 if (debug & DEBUG_FS_VALIDATE) { 325 printf("ffs_validate: before defaults set:\n"); 326 ffs_dump_fsinfo(fsopts); 327 } 328 329 /* set FFS defaults */ 330 if (fsopts->sectorsize == -1) 331 fsopts->sectorsize = DFL_SECSIZE; 332 if (ffs_opts->fsize == -1) 333 ffs_opts->fsize = MAX(DFL_FRAGSIZE, fsopts->sectorsize); 334 if (ffs_opts->bsize == -1) 335 ffs_opts->bsize = MIN(DFL_BLKSIZE, 8 * ffs_opts->fsize); 336 if (ffs_opts->cpg == -1) 337 ffs_opts->cpg = DFL_CYLSPERGROUP; 338 else 339 ffs_opts->cpgflg = 1; 340 /* fsopts->density is set below */ 341 if (ffs_opts->nsectors == -1) 342 ffs_opts->nsectors = DFL_NSECTORS; 343 if (ffs_opts->minfree == -1) 344 ffs_opts->minfree = MINFREE; 345 if (ffs_opts->optimization == -1) 346 ffs_opts->optimization = DEFAULTOPT; 347 if (ffs_opts->maxcontig == -1) 348 ffs_opts->maxcontig = 349 MAX(1, MIN(MAXPHYS, FFS_MAXBSIZE) / ffs_opts->bsize); 350 /* XXX ondisk32 */ 351 if (ffs_opts->maxbpg == -1) 352 ffs_opts->maxbpg = ffs_opts->bsize / sizeof(int32_t); 353 if (ffs_opts->avgfilesize == -1) 354 ffs_opts->avgfilesize = AVFILESIZ; 355 if (ffs_opts->avgfpdir == -1) 356 ffs_opts->avgfpdir = AFPDIR; 357 358 if (fsopts->maxsize > 0 && 359 roundup(fsopts->minsize, ffs_opts->bsize) > fsopts->maxsize) 360 errx(1, "`%s' minsize of %lld rounded up to ffs bsize of %d " 361 "exceeds maxsize %lld. Lower bsize, or round the minimum " 362 "and maximum sizes to bsize.", dir, 363 (long long)fsopts->minsize, ffs_opts->bsize, 364 (long long)fsopts->maxsize); 365 366 /* calculate size of tree */ 367 ffs_size_dir(root, fsopts); 368 fsopts->inodes += UFS_ROOTINO; /* include first two inodes */ 369 370 if (debug & DEBUG_FS_VALIDATE) 371 printf("ffs_validate: size of tree: %lld bytes, %lld inodes\n", 372 (long long)fsopts->size, (long long)fsopts->inodes); 373 374 /* add requested slop */ 375 fsopts->size += fsopts->freeblocks; 376 fsopts->inodes += fsopts->freefiles; 377 if (fsopts->freefilepc > 0) 378 fsopts->inodes = 379 fsopts->inodes * (100 + fsopts->freefilepc) / 100; 380 if (fsopts->freeblockpc > 0) 381 fsopts->size = 382 fsopts->size * (100 + fsopts->freeblockpc) / 100; 383 384 /* add space needed for superblocks */ 385 /* 386 * The old SBOFF (SBLOCK_UFS1) is used here because makefs is 387 * typically used for small filesystems where space matters. 388 * XXX make this an option. 389 */ 390 fsopts->size += (SBLOCK_UFS1 + SBLOCKSIZE) * ncg; 391 /* add space needed to store inodes, x3 for blockmaps, etc */ 392 if (ffs_opts->version == 1) 393 fsopts->size += ncg * DINODE1_SIZE * 394 roundup(fsopts->inodes / ncg, 395 ffs_opts->bsize / DINODE1_SIZE); 396 else 397 fsopts->size += ncg * DINODE2_SIZE * 398 roundup(fsopts->inodes / ncg, 399 ffs_opts->bsize / DINODE2_SIZE); 400 401 /* add minfree */ 402 if (ffs_opts->minfree > 0) 403 fsopts->size = 404 fsopts->size * (100 + ffs_opts->minfree) / 100; 405 /* 406 * XXX any other fs slop to add, such as csum's, bitmaps, etc ?? 407 */ 408 409 if (fsopts->size < fsopts->minsize) /* ensure meets minimum size */ 410 fsopts->size = fsopts->minsize; 411 412 /* round up to the next block */ 413 fsopts->size = roundup(fsopts->size, ffs_opts->bsize); 414 415 /* round up to requested block size, if any */ 416 if (fsopts->roundup > 0) 417 fsopts->size = roundup(fsopts->size, fsopts->roundup); 418 419 /* calculate density if necessary */ 420 if (ffs_opts->density == -1) 421 ffs_opts->density = fsopts->size / fsopts->inodes + 1; 422 423 if (debug & DEBUG_FS_VALIDATE) { 424 printf("ffs_validate: after defaults set:\n"); 425 ffs_dump_fsinfo(fsopts); 426 printf("ffs_validate: dir %s; %lld bytes, %lld inodes\n", 427 dir, (long long)fsopts->size, (long long)fsopts->inodes); 428 } 429 sectorsize = fsopts->sectorsize; /* XXX - see earlier */ 430 431 /* now check calculated sizes vs requested sizes */ 432 if (fsopts->maxsize > 0 && fsopts->size > fsopts->maxsize) { 433 errx(1, "`%s' size of %lld is larger than the maxsize of %lld.", 434 dir, (long long)fsopts->size, (long long)fsopts->maxsize); 435 } 436 } 437 438 439 static void 440 ffs_dump_fsinfo(fsinfo_t *f) 441 { 442 443 ffs_opt_t *fs = f->fs_specific; 444 445 printf("fsopts at %p\n", f); 446 447 printf("\tsize %lld, inodes %lld, curinode %u\n", 448 (long long)f->size, (long long)f->inodes, f->curinode); 449 450 printf("\tminsize %lld, maxsize %lld\n", 451 (long long)f->minsize, (long long)f->maxsize); 452 printf("\tfree files %lld, freefile %% %d\n", 453 (long long)f->freefiles, f->freefilepc); 454 printf("\tfree blocks %lld, freeblock %% %d\n", 455 (long long)f->freeblocks, f->freeblockpc); 456 printf("\tneedswap %d, sectorsize %d\n", f->needswap, f->sectorsize); 457 458 printf("\tbsize %d, fsize %d, cpg %d, density %d\n", 459 fs->bsize, fs->fsize, fs->cpg, fs->density); 460 printf("\tnsectors %d, rpm %d, minfree %d\n", 461 fs->nsectors, fs->rpm, fs->minfree); 462 printf("\tmaxcontig %d, maxbpg %d\n", 463 fs->maxcontig, fs->maxbpg); 464 printf("\toptimization %s\n", 465 fs->optimization == FS_OPTSPACE ? "space" : "time"); 466 } 467 468 469 static int 470 ffs_create_image(const char *image, fsinfo_t *fsopts) 471 { 472 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 473 struct statvfs sfs; 474 #endif 475 struct fs *fs; 476 char *buf; 477 int i, bufsize; 478 off_t bufrem; 479 time_t tstamp; 480 481 assert (image != NULL); 482 assert (fsopts != NULL); 483 484 /* create image */ 485 if ((fsopts->fd = open(image, O_RDWR | O_CREAT | O_TRUNC, 0666)) 486 == -1) { 487 warn("Can't open `%s' for writing", image); 488 return (-1); 489 } 490 491 /* zero image */ 492 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 493 if (fstatvfs(fsopts->fd, &sfs) == -1) { 494 #endif 495 bufsize = 8192; 496 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 497 warn("can't fstatvfs `%s', using default %d byte chunk", 498 image, bufsize); 499 } else 500 bufsize = sfs.f_iosize; 501 #endif 502 bufrem = fsopts->size; 503 if (fsopts->sparse) { 504 if (ftruncate(fsopts->fd, bufrem) == -1) { 505 warn("sparse option disabled."); 506 fsopts->sparse = 0; 507 } 508 } 509 if (fsopts->sparse) { 510 /* File truncated at bufrem. Remaining is 0 */ 511 bufrem = 0; 512 buf = NULL; 513 } else { 514 if (debug & DEBUG_FS_CREATE_IMAGE) 515 printf("zero-ing image `%s', %lld sectors, " 516 "using %d byte chunks\n", image, (long long)bufrem, 517 bufsize); 518 buf = ecalloc(1, bufsize); 519 } 520 while (bufrem > 0) { 521 i = write(fsopts->fd, buf, MIN(bufsize, bufrem)); 522 if (i == -1) { 523 warn("zeroing image, %lld bytes to go", 524 (long long)bufrem); 525 free(buf); 526 return (-1); 527 } 528 bufrem -= i; 529 } 530 if (buf) 531 free(buf); 532 533 /* make the file system */ 534 if (debug & DEBUG_FS_CREATE_IMAGE) 535 printf("calling mkfs(\"%s\", ...)\n", image); 536 537 if (stampst.st_ino != 0) 538 tstamp = stampst.st_ctime; 539 else 540 tstamp = start_time.tv_sec; 541 542 srandom(tstamp); 543 544 fs = ffs_mkfs(image, fsopts, tstamp); 545 fsopts->superblock = (void *)fs; 546 if (debug & DEBUG_FS_CREATE_IMAGE) { 547 time_t t; 548 549 t = (time_t)((struct fs *)fsopts->superblock)->fs_time; 550 printf("mkfs returned %p; fs_time %s", 551 fsopts->superblock, ctime(&t)); 552 printf("fs totals: nbfree %lld, nffree %lld, nifree %lld, ndir %lld\n", 553 (long long)fs->fs_cstotal.cs_nbfree, 554 (long long)fs->fs_cstotal.cs_nffree, 555 (long long)fs->fs_cstotal.cs_nifree, 556 (long long)fs->fs_cstotal.cs_ndir); 557 } 558 559 if (fs->fs_cstotal.cs_nifree + UFS_ROOTINO < fsopts->inodes) { 560 warnx( 561 "Image file `%s' has %lld free inodes; %lld are required.", 562 image, 563 (long long)(fs->fs_cstotal.cs_nifree + UFS_ROOTINO), 564 (long long)fsopts->inodes); 565 return (-1); 566 } 567 return (fsopts->fd); 568 } 569 570 571 static void 572 ffs_size_dir(fsnode *root, fsinfo_t *fsopts) 573 { 574 struct direct tmpdir; 575 fsnode * node; 576 int curdirsize, this; 577 ffs_opt_t *ffs_opts = fsopts->fs_specific; 578 579 /* node may be NULL (empty directory) */ 580 assert(fsopts != NULL); 581 assert(ffs_opts != NULL); 582 583 if (debug & DEBUG_FS_SIZE_DIR) 584 printf("ffs_size_dir: entry: bytes %lld inodes %lld\n", 585 (long long)fsopts->size, (long long)fsopts->inodes); 586 587 #define ADDDIRENT(e) do { \ 588 tmpdir.d_namlen = strlen((e)); \ 589 this = DIRSIZ_SWAP(0, &tmpdir, 0); \ 590 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 591 printf("ADDDIRENT: was: %s (%d) this %d cur %d\n", \ 592 e, tmpdir.d_namlen, this, curdirsize); \ 593 if (this + curdirsize > roundup(curdirsize, DIRBLKSIZ)) \ 594 curdirsize = roundup(curdirsize, DIRBLKSIZ); \ 595 curdirsize += this; \ 596 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 597 printf("ADDDIRENT: now: %s (%d) this %d cur %d\n", \ 598 e, tmpdir.d_namlen, this, curdirsize); \ 599 } while (0); 600 601 /* 602 * XXX this needs to take into account extra space consumed 603 * by indirect blocks, etc. 604 */ 605 #define ADDSIZE(x) do { \ 606 fsopts->size += roundup((x), ffs_opts->fsize); \ 607 } while (0); 608 609 curdirsize = 0; 610 for (node = root; node != NULL; node = node->next) { 611 ADDDIRENT(node->name); 612 if (node == root) { /* we're at "." */ 613 assert(strcmp(node->name, ".") == 0); 614 ADDDIRENT(".."); 615 } else if ((node->inode->flags & FI_SIZED) == 0) { 616 /* don't count duplicate names */ 617 node->inode->flags |= FI_SIZED; 618 if (debug & DEBUG_FS_SIZE_DIR_NODE) 619 printf("ffs_size_dir: `%s' size %lld\n", 620 node->name, 621 (long long)node->inode->st.st_size); 622 fsopts->inodes++; 623 if (node->type == S_IFREG) 624 ADDSIZE(node->inode->st.st_size); 625 if (node->type == S_IFLNK) { 626 size_t slen; 627 628 slen = strlen(node->symlink) + 1; 629 if (slen >= (ffs_opts->version == 1 ? 630 UFS1_MAXSYMLINKLEN : 631 UFS2_MAXSYMLINKLEN)) 632 ADDSIZE(slen); 633 } 634 } 635 if (node->type == S_IFDIR) 636 ffs_size_dir(node->child, fsopts); 637 } 638 ADDSIZE(curdirsize); 639 640 if (debug & DEBUG_FS_SIZE_DIR) 641 printf("ffs_size_dir: exit: size %lld inodes %lld\n", 642 (long long)fsopts->size, (long long)fsopts->inodes); 643 } 644 645 static void * 646 ffs_build_dinode1(struct ufs1_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 647 fsnode *root, fsinfo_t *fsopts) 648 { 649 size_t slen; 650 void *membuf; 651 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st; 652 653 memset(dinp, 0, sizeof(*dinp)); 654 dinp->di_mode = cur->inode->st.st_mode; 655 dinp->di_nlink = cur->inode->nlink; 656 dinp->di_size = cur->inode->st.st_size; 657 #if HAVE_STRUCT_STAT_ST_FLAGS 658 dinp->di_flags = cur->inode->st.st_flags; 659 #endif 660 dinp->di_gen = random(); 661 dinp->di_uid = cur->inode->st.st_uid; 662 dinp->di_gid = cur->inode->st.st_gid; 663 664 dinp->di_atime = st->st_atime; 665 dinp->di_mtime = st->st_mtime; 666 dinp->di_ctime = st->st_ctime; 667 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 668 dinp->di_atimensec = st->st_atimensec; 669 dinp->di_mtimensec = st->st_mtimensec; 670 dinp->di_ctimensec = st->st_ctimensec; 671 #endif 672 /* not set: di_db, di_ib, di_blocks, di_spare */ 673 674 membuf = NULL; 675 if (cur == root) { /* "."; write dirbuf */ 676 membuf = dbufp->buf; 677 dinp->di_size = dbufp->size; 678 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 679 dinp->di_size = 0; /* a device */ 680 dinp->di_rdev = 681 ufs_rw32(cur->inode->st.st_rdev, fsopts->needswap); 682 } else if (S_ISLNK(cur->type)) { /* symlink */ 683 slen = strlen(cur->symlink); 684 if (slen < UFS1_MAXSYMLINKLEN) { /* short link */ 685 memcpy(dinp->di_db, cur->symlink, slen); 686 } else 687 membuf = cur->symlink; 688 dinp->di_size = slen; 689 } 690 return membuf; 691 } 692 693 static void * 694 ffs_build_dinode2(struct ufs2_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 695 fsnode *root, fsinfo_t *fsopts) 696 { 697 size_t slen; 698 void *membuf; 699 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st; 700 701 memset(dinp, 0, sizeof(*dinp)); 702 dinp->di_mode = cur->inode->st.st_mode; 703 dinp->di_nlink = cur->inode->nlink; 704 dinp->di_size = cur->inode->st.st_size; 705 #if HAVE_STRUCT_STAT_ST_FLAGS 706 dinp->di_flags = cur->inode->st.st_flags; 707 #endif 708 dinp->di_gen = random(); 709 dinp->di_uid = cur->inode->st.st_uid; 710 dinp->di_gid = cur->inode->st.st_gid; 711 712 dinp->di_atime = st->st_atime; 713 dinp->di_mtime = st->st_mtime; 714 dinp->di_ctime = st->st_ctime; 715 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 716 dinp->di_atimensec = st->st_atimensec; 717 dinp->di_mtimensec = st->st_mtimensec; 718 dinp->di_ctimensec = st->st_ctimensec; 719 #endif 720 #if HAVE_STRUCT_STAT_BIRTHTIME 721 dinp->di_birthtime = st->st_birthtime; 722 dinp->di_birthnsec = st->st_birthtimensec; 723 #endif 724 /* not set: di_db, di_ib, di_blocks, di_spare */ 725 726 membuf = NULL; 727 if (cur == root) { /* "."; write dirbuf */ 728 membuf = dbufp->buf; 729 dinp->di_size = dbufp->size; 730 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 731 dinp->di_size = 0; /* a device */ 732 dinp->di_rdev = 733 ufs_rw64(cur->inode->st.st_rdev, fsopts->needswap); 734 } else if (S_ISLNK(cur->type)) { /* symlink */ 735 slen = strlen(cur->symlink); 736 if (slen < UFS2_MAXSYMLINKLEN) { /* short link */ 737 memcpy(dinp->di_db, cur->symlink, slen); 738 } else 739 membuf = cur->symlink; 740 dinp->di_size = slen; 741 } 742 return membuf; 743 } 744 745 static int 746 ffs_populate_dir(const char *dir, fsnode *root, fsinfo_t *fsopts) 747 { 748 fsnode *cur; 749 dirbuf_t dirbuf; 750 union dinode din; 751 void *membuf; 752 char path[MAXPATHLEN + 1]; 753 ffs_opt_t *ffs_opts = fsopts->fs_specific; 754 755 assert(dir != NULL); 756 assert(root != NULL); 757 assert(fsopts != NULL); 758 assert(ffs_opts != NULL); 759 760 (void)memset(&dirbuf, 0, sizeof(dirbuf)); 761 762 if (debug & DEBUG_FS_POPULATE) 763 printf("ffs_populate_dir: PASS 1 dir %s node %p\n", dir, root); 764 765 /* 766 * pass 1: allocate inode numbers, build directory `file' 767 */ 768 for (cur = root; cur != NULL; cur = cur->next) { 769 if ((cur->inode->flags & FI_ALLOCATED) == 0) { 770 cur->inode->flags |= FI_ALLOCATED; 771 if (cur == root && cur->parent != NULL) 772 cur->inode->ino = cur->parent->inode->ino; 773 else { 774 cur->inode->ino = fsopts->curinode; 775 fsopts->curinode++; 776 } 777 } 778 ffs_make_dirbuf(&dirbuf, cur->name, cur, fsopts->needswap); 779 if (cur == root) { /* we're at "."; add ".." */ 780 ffs_make_dirbuf(&dirbuf, "..", 781 cur->parent == NULL ? cur : cur->parent->first, 782 fsopts->needswap); 783 root->inode->nlink++; /* count my parent's link */ 784 } else if (cur->child != NULL) 785 root->inode->nlink++; /* count my child's link */ 786 787 /* 788 * XXX possibly write file and long symlinks here, 789 * ensuring that blocks get written before inodes? 790 * otoh, this isn't a real filesystem, so who 791 * cares about ordering? :-) 792 */ 793 } 794 if (debug & DEBUG_FS_POPULATE_DIRBUF) 795 ffs_dump_dirbuf(&dirbuf, dir, fsopts->needswap); 796 797 /* 798 * pass 2: write out dirbuf, then non-directories at this level 799 */ 800 if (debug & DEBUG_FS_POPULATE) 801 printf("ffs_populate_dir: PASS 2 dir %s\n", dir); 802 for (cur = root; cur != NULL; cur = cur->next) { 803 if (cur->inode->flags & FI_WRITTEN) 804 continue; /* skip hard-linked entries */ 805 cur->inode->flags |= FI_WRITTEN; 806 807 if (cur->contents == NULL) { 808 if (snprintf(path, sizeof(path), "%s/%s/%s", cur->root, 809 cur->path, cur->name) >= (int)sizeof(path)) 810 errx(1, "Pathname too long."); 811 } 812 813 if (cur->child != NULL) 814 continue; /* child creates own inode */ 815 816 /* build on-disk inode */ 817 if (ffs_opts->version == 1) 818 membuf = ffs_build_dinode1(&din.ffs1_din, &dirbuf, cur, 819 root, fsopts); 820 else 821 membuf = ffs_build_dinode2(&din.ffs2_din, &dirbuf, cur, 822 root, fsopts); 823 824 if (debug & DEBUG_FS_POPULATE_NODE) { 825 printf("ffs_populate_dir: writing ino %d, %s", 826 cur->inode->ino, inode_type(cur->type)); 827 if (cur->inode->nlink > 1) 828 printf(", nlink %d", cur->inode->nlink); 829 putchar('\n'); 830 } 831 832 if (membuf != NULL) { 833 ffs_write_file(&din, cur->inode->ino, membuf, fsopts); 834 } else if (S_ISREG(cur->type)) { 835 ffs_write_file(&din, cur->inode->ino, 836 (cur->contents) ? cur->contents : path, fsopts); 837 } else { 838 assert (! S_ISDIR(cur->type)); 839 ffs_write_inode(&din, cur->inode->ino, fsopts); 840 } 841 } 842 843 /* 844 * pass 3: write out sub-directories 845 */ 846 if (debug & DEBUG_FS_POPULATE) 847 printf("ffs_populate_dir: PASS 3 dir %s\n", dir); 848 for (cur = root; cur != NULL; cur = cur->next) { 849 if (cur->child == NULL) 850 continue; 851 if ((size_t)snprintf(path, sizeof(path), "%s/%s", dir, 852 cur->name) >= sizeof(path)) 853 errx(1, "Pathname too long."); 854 if (! ffs_populate_dir(path, cur->child, fsopts)) 855 return (0); 856 } 857 858 if (debug & DEBUG_FS_POPULATE) 859 printf("ffs_populate_dir: DONE dir %s\n", dir); 860 861 /* cleanup */ 862 if (dirbuf.buf != NULL) 863 free(dirbuf.buf); 864 return (1); 865 } 866 867 868 static void 869 ffs_write_file(union dinode *din, uint32_t ino, void *buf, fsinfo_t *fsopts) 870 { 871 int isfile, ffd; 872 char *fbuf, *p; 873 off_t bufleft, chunk, offset; 874 ssize_t nread; 875 struct inode in; 876 struct buf * bp; 877 ffs_opt_t *ffs_opts = fsopts->fs_specific; 878 879 assert (din != NULL); 880 assert (buf != NULL); 881 assert (fsopts != NULL); 882 assert (ffs_opts != NULL); 883 884 isfile = S_ISREG(DIP(din, mode)); 885 fbuf = NULL; 886 ffd = -1; 887 p = NULL; 888 889 in.i_fs = (struct fs *)fsopts->superblock; 890 891 if (debug & DEBUG_FS_WRITE_FILE) { 892 printf( 893 "ffs_write_file: ino %u, din %p, isfile %d, %s, size %lld", 894 ino, din, isfile, inode_type(DIP(din, mode) & S_IFMT), 895 (long long)DIP(din, size)); 896 if (isfile) 897 printf(", file '%s'\n", (char *)buf); 898 else 899 printf(", buffer %p\n", buf); 900 } 901 902 in.i_number = ino; 903 in.i_size = DIP(din, size); 904 if (ffs_opts->version == 1) 905 memcpy(&in.i_din.ffs1_din, &din->ffs1_din, 906 sizeof(in.i_din.ffs1_din)); 907 else 908 memcpy(&in.i_din.ffs2_din, &din->ffs2_din, 909 sizeof(in.i_din.ffs2_din)); 910 in.i_fd = fsopts->fd; 911 912 if (DIP(din, size) == 0) 913 goto write_inode_and_leave; /* mmm, cheating */ 914 915 if (isfile) { 916 fbuf = emalloc(ffs_opts->bsize); 917 if ((ffd = open((char *)buf, O_RDONLY, 0444)) == -1) { 918 warn("Can't open `%s' for reading", (char *)buf); 919 goto leave_ffs_write_file; 920 } 921 } else { 922 p = buf; 923 } 924 925 chunk = 0; 926 for (bufleft = DIP(din, size); bufleft > 0; bufleft -= chunk) { 927 chunk = MIN(bufleft, ffs_opts->bsize); 928 if (!isfile) 929 ; 930 else if ((nread = read(ffd, fbuf, chunk)) == -1) 931 err(EXIT_FAILURE, "Reading `%s', %lld bytes to go", 932 (char *)buf, (long long)bufleft); 933 else if (nread != chunk) 934 errx(EXIT_FAILURE, "Reading `%s', %lld bytes to go, " 935 "read %zd bytes, expected %ju bytes, does " 936 "metalog size= attribute mismatch source size?", 937 (char *)buf, (long long)bufleft, nread, 938 (uintmax_t)chunk); 939 else 940 p = fbuf; 941 offset = DIP(din, size) - bufleft; 942 if (debug & DEBUG_FS_WRITE_FILE_BLOCK) 943 printf( 944 "ffs_write_file: write %p offset %lld size %lld left %lld\n", 945 p, (long long)offset, 946 (long long)chunk, (long long)bufleft); 947 /* 948 * XXX if holey support is desired, do the check here 949 * 950 * XXX might need to write out last bit in fragroundup 951 * sized chunk. however, ffs_balloc() handles this for us 952 */ 953 errno = ffs_balloc(&in, offset, chunk, &bp); 954 bad_ffs_write_file: 955 if (errno != 0) 956 err(1, 957 "Writing inode %d (%s), bytes %lld + %lld", 958 ino, 959 isfile ? (char *)buf : 960 inode_type(DIP(din, mode) & S_IFMT), 961 (long long)offset, (long long)chunk); 962 memcpy(bp->b_data, p, chunk); 963 errno = bwrite(bp); 964 if (errno != 0) 965 goto bad_ffs_write_file; 966 brelse(bp, 0); 967 if (!isfile) 968 p += chunk; 969 } 970 971 write_inode_and_leave: 972 ffs_write_inode(&in.i_din, in.i_number, fsopts); 973 974 leave_ffs_write_file: 975 if (fbuf) 976 free(fbuf); 977 if (ffd != -1) 978 close(ffd); 979 } 980 981 982 static void 983 ffs_dump_dirbuf(dirbuf_t *dbuf, const char *dir, int needswap) 984 { 985 doff_t i; 986 struct direct *de; 987 uint16_t reclen; 988 989 assert (dbuf != NULL); 990 assert (dir != NULL); 991 printf("ffs_dump_dirbuf: dir %s size %d cur %d\n", 992 dir, dbuf->size, dbuf->cur); 993 994 for (i = 0; i < dbuf->size; ) { 995 de = (struct direct *)(dbuf->buf + i); 996 reclen = ufs_rw16(de->d_reclen, needswap); 997 printf( 998 " inode %4d %7s offset %4d reclen %3d namlen %3d name %s\n", 999 ufs_rw32(de->d_ino, needswap), 1000 inode_type(DTTOIF(de->d_type)), i, reclen, 1001 de->d_namlen, de->d_name); 1002 i += reclen; 1003 assert(reclen > 0); 1004 } 1005 } 1006 1007 static void 1008 ffs_make_dirbuf(dirbuf_t *dbuf, const char *name, fsnode *node, int needswap) 1009 { 1010 struct direct de, *dp; 1011 uint16_t llen, reclen; 1012 u_char *newbuf; 1013 1014 assert (dbuf != NULL); 1015 assert (name != NULL); 1016 assert (node != NULL); 1017 /* create direct entry */ 1018 (void)memset(&de, 0, sizeof(de)); 1019 de.d_ino = ufs_rw32(node->inode->ino, needswap); 1020 de.d_type = IFTODT(node->type); 1021 de.d_namlen = (uint8_t)strlen(name); 1022 strcpy(de.d_name, name); 1023 reclen = DIRSIZ_SWAP(0, &de, needswap); 1024 de.d_reclen = ufs_rw16(reclen, needswap); 1025 1026 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1027 llen = 0; 1028 if (dp != NULL) 1029 llen = DIRSIZ_SWAP(0, dp, needswap); 1030 1031 if (debug & DEBUG_FS_MAKE_DIRBUF) 1032 printf( 1033 "ffs_make_dirbuf: dbuf siz %d cur %d lastlen %d\n" 1034 " ino %d type %d reclen %d namlen %d name %.30s\n", 1035 dbuf->size, dbuf->cur, llen, 1036 ufs_rw32(de.d_ino, needswap), de.d_type, reclen, 1037 de.d_namlen, de.d_name); 1038 1039 if (reclen + dbuf->cur + llen > roundup(dbuf->size, DIRBLKSIZ)) { 1040 if (debug & DEBUG_FS_MAKE_DIRBUF) 1041 printf("ffs_make_dirbuf: growing buf to %d\n", 1042 dbuf->size + DIRBLKSIZ); 1043 newbuf = erealloc(dbuf->buf, dbuf->size + DIRBLKSIZ); 1044 dbuf->buf = newbuf; 1045 dbuf->size += DIRBLKSIZ; 1046 memset(dbuf->buf + dbuf->size - DIRBLKSIZ, 0, DIRBLKSIZ); 1047 dbuf->cur = dbuf->size - DIRBLKSIZ; 1048 } else if (dp) { /* shrink end of previous */ 1049 dp->d_reclen = ufs_rw16(llen,needswap); 1050 dbuf->cur += llen; 1051 } 1052 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1053 memcpy(dp, &de, reclen); 1054 dp->d_reclen = ufs_rw16(dbuf->size - dbuf->cur, needswap); 1055 } 1056 1057 /* 1058 * cribbed from sys/ufs/ffs/ffs_alloc.c 1059 */ 1060 static void 1061 ffs_write_inode(union dinode *dp, uint32_t ino, const fsinfo_t *fsopts) 1062 { 1063 char *buf; 1064 struct ufs1_dinode *dp1; 1065 struct ufs2_dinode *dp2, *dip; 1066 struct cg *cgp; 1067 struct fs *fs; 1068 int cg, cgino, i; 1069 daddr_t d; 1070 char sbbuf[FFS_MAXBSIZE]; 1071 int32_t initediblk; 1072 ffs_opt_t *ffs_opts = fsopts->fs_specific; 1073 1074 assert (dp != NULL); 1075 assert (ino > 0); 1076 assert (fsopts != NULL); 1077 assert (ffs_opts != NULL); 1078 1079 fs = (struct fs *)fsopts->superblock; 1080 cg = ino_to_cg(fs, ino); 1081 cgino = ino % fs->fs_ipg; 1082 if (debug & DEBUG_FS_WRITE_INODE) 1083 printf("ffs_write_inode: din %p ino %u cg %d cgino %d\n", 1084 dp, ino, cg, cgino); 1085 1086 ffs_rdfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1087 fsopts); 1088 cgp = (struct cg *)sbbuf; 1089 if (!cg_chkmagic_swap(cgp, fsopts->needswap)) 1090 errx(1, "ffs_write_inode: cg %d: bad magic number", cg); 1091 1092 assert (isclr(cg_inosused_swap(cgp, fsopts->needswap), cgino)); 1093 1094 buf = emalloc(fs->fs_bsize); 1095 dp1 = (struct ufs1_dinode *)buf; 1096 dp2 = (struct ufs2_dinode *)buf; 1097 1098 if (fs->fs_cstotal.cs_nifree == 0) 1099 errx(1, "ffs_write_inode: fs out of inodes for ino %u", 1100 ino); 1101 if (fs->fs_cs(fs, cg).cs_nifree == 0) 1102 errx(1, 1103 "ffs_write_inode: cg %d out of inodes for ino %u", 1104 cg, ino); 1105 setbit(cg_inosused_swap(cgp, fsopts->needswap), cgino); 1106 ufs_add32(cgp->cg_cs.cs_nifree, -1, fsopts->needswap); 1107 fs->fs_cstotal.cs_nifree--; 1108 fs->fs_cs(fs, cg).cs_nifree--; 1109 if (S_ISDIR(DIP(dp, mode))) { 1110 ufs_add32(cgp->cg_cs.cs_ndir, 1, fsopts->needswap); 1111 fs->fs_cstotal.cs_ndir++; 1112 fs->fs_cs(fs, cg).cs_ndir++; 1113 } 1114 1115 /* 1116 * Initialize inode blocks on the fly for UFS2. 1117 */ 1118 initediblk = ufs_rw32(cgp->cg_initediblk, fsopts->needswap); 1119 if (ffs_opts->version == 2 && cgino + INOPB(fs) > initediblk && 1120 initediblk < ufs_rw32(cgp->cg_niblk, fsopts->needswap)) { 1121 memset(buf, 0, fs->fs_bsize); 1122 dip = (struct ufs2_dinode *)buf; 1123 for (i = 0; i < INOPB(fs); i++) { 1124 dip->di_gen = random(); 1125 dip++; 1126 } 1127 ffs_wtfs(fsbtodb(fs, ino_to_fsba(fs, 1128 cg * fs->fs_ipg + initediblk)), 1129 fs->fs_bsize, buf, fsopts); 1130 initediblk += INOPB(fs); 1131 cgp->cg_initediblk = ufs_rw32(initediblk, fsopts->needswap); 1132 } 1133 1134 1135 ffs_wtfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1136 fsopts); 1137 1138 /* now write inode */ 1139 d = fsbtodb(fs, ino_to_fsba(fs, ino)); 1140 ffs_rdfs(d, fs->fs_bsize, buf, fsopts); 1141 if (fsopts->needswap) { 1142 if (ffs_opts->version == 1) 1143 ffs_dinode1_swap(&dp->ffs1_din, 1144 &dp1[ino_to_fsbo(fs, ino)]); 1145 else 1146 ffs_dinode2_swap(&dp->ffs2_din, 1147 &dp2[ino_to_fsbo(fs, ino)]); 1148 } else { 1149 if (ffs_opts->version == 1) 1150 dp1[ino_to_fsbo(fs, ino)] = dp->ffs1_din; 1151 else 1152 dp2[ino_to_fsbo(fs, ino)] = dp->ffs2_din; 1153 } 1154 ffs_wtfs(d, fs->fs_bsize, buf, fsopts); 1155 free(buf); 1156 } 1157 1158 void 1159 panic(const char *fmt, ...) 1160 { 1161 va_list ap; 1162 1163 va_start(ap, fmt); 1164 vwarnx(fmt, ap); 1165 va_end(ap); 1166 exit(1); 1167 } 1168