1 /* $NetBSD: ffs.c,v 1.44 2009/04/28 22:49:26 joerg 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 86 #include "makefs.h" 87 #include "ffs.h" 88 89 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 90 #include <sys/statvfs.h> 91 #endif 92 93 #include <ufs/ufs/dinode.h> 94 #include <ufs/ufs/dir.h> 95 #include <ufs/ffs/fs.h> 96 97 98 #include "ffs/ufs_bswap.h" 99 #include "ffs/ufs_inode.h" 100 #include "ffs/newfs_extern.h" 101 #include "ffs/ffs_extern.h" 102 103 #undef DIP 104 #define DIP(dp, field) \ 105 ((ffs_opts->version == 1) ? \ 106 (dp)->ffs1_din.di_##field : (dp)->ffs2_din.di_##field) 107 108 /* 109 * Various file system defaults (cribbed from newfs(8)). 110 */ 111 #define DFL_FRAGSIZE 1024 /* fragment size */ 112 #define DFL_BLKSIZE 8192 /* block size */ 113 #define DFL_SECSIZE 512 /* sector size */ 114 #define DFL_CYLSPERGROUP 65536 /* cylinders per group */ 115 #define DFL_FRAGSPERINODE 4 /* fragments per inode */ 116 #define DFL_ROTDELAY 0 /* rotational delay */ 117 #define DFL_NRPOS 1 /* rotational positions */ 118 #define DFL_RPM 3600 /* rpm of disk */ 119 #define DFL_NSECTORS 64 /* # of sectors */ 120 #define DFL_NTRACKS 16 /* # of tracks */ 121 122 123 typedef struct { 124 u_char *buf; /* buf for directory */ 125 doff_t size; /* full size of buf */ 126 doff_t cur; /* offset of current entry */ 127 } dirbuf_t; 128 129 130 static int ffs_create_image(const char *, fsinfo_t *); 131 static void ffs_dump_fsinfo(fsinfo_t *); 132 static void ffs_dump_dirbuf(dirbuf_t *, const char *, int); 133 static void ffs_make_dirbuf(dirbuf_t *, const char *, fsnode *, int); 134 static int ffs_populate_dir(const char *, fsnode *, fsinfo_t *); 135 static void ffs_size_dir(fsnode *, fsinfo_t *); 136 static void ffs_validate(const char *, fsnode *, fsinfo_t *); 137 static void ffs_write_file(union dinode *, uint32_t, void *, fsinfo_t *); 138 static void ffs_write_inode(union dinode *, uint32_t, const fsinfo_t *); 139 static void *ffs_build_dinode1(struct ufs1_dinode *, dirbuf_t *, fsnode *, 140 fsnode *, fsinfo_t *); 141 static void *ffs_build_dinode2(struct ufs2_dinode *, dirbuf_t *, fsnode *, 142 fsnode *, fsinfo_t *); 143 144 145 146 int sectorsize; /* XXX: for buf.c::getblk() */ 147 148 /* publicly visible functions */ 149 150 void 151 ffs_prep_opts(fsinfo_t *fsopts) 152 { 153 ffs_opt_t *ffs_opts; 154 155 if ((ffs_opts = calloc(1, sizeof(ffs_opt_t))) == NULL) 156 err(1, "Allocating memory for ffs_options"); 157 158 fsopts->fs_specific = ffs_opts; 159 160 ffs_opts->bsize= -1; 161 ffs_opts->fsize= -1; 162 ffs_opts->cpg= -1; 163 ffs_opts->density= -1; 164 ffs_opts->minfree= -1; 165 ffs_opts->optimization= -1; 166 ffs_opts->maxcontig= -1; 167 ffs_opts->maxbpg= -1; 168 ffs_opts->avgfilesize= -1; 169 ffs_opts->avgfpdir= -1; 170 ffs_opts->version = 1; 171 } 172 173 void 174 ffs_cleanup_opts(fsinfo_t *fsopts) 175 { 176 if (fsopts->fs_specific) 177 free(fsopts->fs_specific); 178 } 179 180 int 181 ffs_parse_opts(const char *option, fsinfo_t *fsopts) 182 { 183 ffs_opt_t *ffs_opts = fsopts->fs_specific; 184 185 option_t ffs_options[] = { 186 { "bsize", &ffs_opts->bsize, 1, INT_MAX, 187 "block size" }, 188 { "fsize", &ffs_opts->fsize, 1, INT_MAX, 189 "fragment size" }, 190 { "density", &ffs_opts->density, 1, INT_MAX, 191 "bytes per inode" }, 192 { "minfree", &ffs_opts->minfree, 0, 99, 193 "minfree" }, 194 { "maxbpf", &ffs_opts->maxbpg, 1, INT_MAX, 195 "max blocks per file in a cg" }, 196 { "avgfilesize", &ffs_opts->avgfilesize,1, INT_MAX, 197 "expected average file size" }, 198 { "avgfpdir", &ffs_opts->avgfpdir, 1, INT_MAX, 199 "expected # of files per directory" }, 200 { "extent", &ffs_opts->maxbsize, 1, INT_MAX, 201 "maximum # extent size" }, 202 { "maxbpcg", &ffs_opts->maxblkspercg,1, INT_MAX, 203 "max # of blocks per group" }, 204 { "version", &ffs_opts->version, 1, 2, 205 "UFS version" }, 206 { .name = NULL } 207 }; 208 209 char *var, *val; 210 int rv; 211 212 assert(option != NULL); 213 assert(fsopts != NULL); 214 assert(ffs_opts != NULL); 215 216 if (debug & DEBUG_FS_PARSE_OPTS) 217 printf("ffs_parse_opts: got `%s'\n", option); 218 219 if ((var = strdup(option)) == NULL) 220 err(1, "Allocating memory for copy of option string"); 221 rv = 0; 222 223 if ((val = strchr(var, '=')) == NULL) { 224 warnx("Option `%s' doesn't contain a value", var); 225 goto leave_ffs_parse_opts; 226 } 227 *val++ = '\0'; 228 229 if (strcmp(var, "optimization") == 0) { 230 if (strcmp(val, "time") == 0) { 231 ffs_opts->optimization = FS_OPTTIME; 232 } else if (strcmp(val, "space") == 0) { 233 ffs_opts->optimization = FS_OPTSPACE; 234 } else { 235 warnx("Invalid optimization `%s'", val); 236 goto leave_ffs_parse_opts; 237 } 238 rv = 1; 239 } else if (strcmp(var, "label") == 0) { 240 strlcpy(ffs_opts->label, val, sizeof(ffs_opts->label)); 241 rv = 1; 242 } else 243 rv = set_option(ffs_options, var, val); 244 245 leave_ffs_parse_opts: 246 if (var) 247 free(var); 248 return (rv); 249 } 250 251 252 void 253 ffs_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts) 254 { 255 struct fs *superblock; 256 struct timeval start; 257 258 assert(image != NULL); 259 assert(dir != NULL); 260 assert(root != NULL); 261 assert(fsopts != NULL); 262 263 if (debug & DEBUG_FS_MAKEFS) 264 printf("ffs_makefs: image %s directory %s root %p\n", 265 image, dir, root); 266 267 /* validate tree and options */ 268 TIMER_START(start); 269 ffs_validate(dir, root, fsopts); 270 TIMER_RESULTS(start, "ffs_validate"); 271 272 printf("Calculated size of `%s': %lld bytes, %lld inodes\n", 273 image, (long long)fsopts->size, (long long)fsopts->inodes); 274 275 /* create image */ 276 TIMER_START(start); 277 if (ffs_create_image(image, fsopts) == -1) 278 errx(1, "Image file `%s' not created.", image); 279 TIMER_RESULTS(start, "ffs_create_image"); 280 281 fsopts->curinode = ROOTINO; 282 283 if (debug & DEBUG_FS_MAKEFS) 284 putchar('\n'); 285 286 /* populate image */ 287 printf("Populating `%s'\n", image); 288 TIMER_START(start); 289 if (! ffs_populate_dir(dir, root, fsopts)) 290 errx(1, "Image file `%s' not populated.", image); 291 TIMER_RESULTS(start, "ffs_populate_dir"); 292 293 /* ensure no outstanding buffers remain */ 294 if (debug & DEBUG_FS_MAKEFS) 295 bcleanup(); 296 297 /* update various superblock parameters */ 298 superblock = fsopts->superblock; 299 superblock->fs_fmod = 0; 300 superblock->fs_old_cstotal.cs_ndir = superblock->fs_cstotal.cs_ndir; 301 superblock->fs_old_cstotal.cs_nbfree = superblock->fs_cstotal.cs_nbfree; 302 superblock->fs_old_cstotal.cs_nifree = superblock->fs_cstotal.cs_nifree; 303 superblock->fs_old_cstotal.cs_nffree = superblock->fs_cstotal.cs_nffree; 304 305 /* write out superblock; image is now complete */ 306 ffs_write_superblock(fsopts->superblock, fsopts); 307 if (close(fsopts->fd) == -1) 308 err(1, "Closing `%s'", image); 309 fsopts->fd = -1; 310 printf("Image `%s' complete\n", image); 311 } 312 313 /* end of public functions */ 314 315 316 static void 317 ffs_validate(const char *dir, fsnode *root, fsinfo_t *fsopts) 318 { 319 int32_t ncg = 1; 320 #if notyet 321 int32_t spc, nspf, ncyl, fssize; 322 #endif 323 ffs_opt_t *ffs_opts = fsopts->fs_specific; 324 325 assert(dir != NULL); 326 assert(root != NULL); 327 assert(fsopts != NULL); 328 assert(ffs_opts != NULL); 329 330 if (debug & DEBUG_FS_VALIDATE) { 331 printf("ffs_validate: before defaults set:\n"); 332 ffs_dump_fsinfo(fsopts); 333 } 334 335 /* set FFS defaults */ 336 if (fsopts->sectorsize == -1) 337 fsopts->sectorsize = DFL_SECSIZE; 338 if (ffs_opts->fsize == -1) 339 ffs_opts->fsize = MAX(DFL_FRAGSIZE, fsopts->sectorsize); 340 if (ffs_opts->bsize == -1) 341 ffs_opts->bsize = MIN(DFL_BLKSIZE, 8 * ffs_opts->fsize); 342 if (ffs_opts->cpg == -1) 343 ffs_opts->cpg = DFL_CYLSPERGROUP; 344 else 345 ffs_opts->cpgflg = 1; 346 /* fsopts->density is set below */ 347 if (ffs_opts->nsectors == -1) 348 ffs_opts->nsectors = DFL_NSECTORS; 349 if (ffs_opts->minfree == -1) 350 ffs_opts->minfree = MINFREE; 351 if (ffs_opts->optimization == -1) 352 ffs_opts->optimization = DEFAULTOPT; 353 if (ffs_opts->maxcontig == -1) 354 ffs_opts->maxcontig = 355 MAX(1, MIN(MAXPHYS, FFS_MAXBSIZE) / ffs_opts->bsize); 356 /* XXX ondisk32 */ 357 if (ffs_opts->maxbpg == -1) 358 ffs_opts->maxbpg = ffs_opts->bsize / sizeof(int32_t); 359 if (ffs_opts->avgfilesize == -1) 360 ffs_opts->avgfilesize = AVFILESIZ; 361 if (ffs_opts->avgfpdir == -1) 362 ffs_opts->avgfpdir = AFPDIR; 363 364 if (roundup(fsopts->minsize, ffs_opts->bsize) > fsopts->maxsize) 365 errx(1, "`%s' minsize of %lld rounded up to ffs bsize of %d " 366 "exceeds maxsize %lld. Lower bsize, or round the minimum " 367 "and maximum sizes to bsize.", dir, 368 (long long)fsopts->minsize, ffs_opts->bsize, 369 (long long)fsopts->maxsize); 370 371 /* calculate size of tree */ 372 ffs_size_dir(root, fsopts); 373 fsopts->inodes += ROOTINO; /* include first two inodes */ 374 375 if (debug & DEBUG_FS_VALIDATE) 376 printf("ffs_validate: size of tree: %lld bytes, %lld inodes\n", 377 (long long)fsopts->size, (long long)fsopts->inodes); 378 379 /* add requested slop */ 380 fsopts->size += fsopts->freeblocks; 381 fsopts->inodes += fsopts->freefiles; 382 if (fsopts->freefilepc > 0) 383 fsopts->inodes = 384 fsopts->inodes * (100 + fsopts->freefilepc) / 100; 385 if (fsopts->freeblockpc > 0) 386 fsopts->size = 387 fsopts->size * (100 + fsopts->freeblockpc) / 100; 388 389 /* add space needed for superblocks */ 390 /* 391 * The old SBOFF (SBLOCK_UFS1) is used here because makefs is 392 * typically used for small filesystems where space matters. 393 * XXX make this an option. 394 */ 395 fsopts->size += (SBLOCK_UFS1 + SBLOCKSIZE) * ncg; 396 /* add space needed to store inodes, x3 for blockmaps, etc */ 397 if (ffs_opts->version == 1) 398 fsopts->size += ncg * DINODE1_SIZE * 399 roundup(fsopts->inodes / ncg, 400 ffs_opts->bsize / DINODE1_SIZE); 401 else 402 fsopts->size += ncg * DINODE2_SIZE * 403 roundup(fsopts->inodes / ncg, 404 ffs_opts->bsize / DINODE2_SIZE); 405 406 /* add minfree */ 407 if (ffs_opts->minfree > 0) 408 fsopts->size = 409 fsopts->size * (100 + ffs_opts->minfree) / 100; 410 /* 411 * XXX any other fs slop to add, such as csum's, bitmaps, etc ?? 412 */ 413 414 if (fsopts->size < fsopts->minsize) /* ensure meets minimum size */ 415 fsopts->size = fsopts->minsize; 416 417 /* round up to the next block */ 418 fsopts->size = roundup(fsopts->size, ffs_opts->bsize); 419 420 /* calculate density if necessary */ 421 if (ffs_opts->density == -1) 422 ffs_opts->density = fsopts->size / fsopts->inodes + 1; 423 424 if (debug & DEBUG_FS_VALIDATE) { 425 printf("ffs_validate: after defaults set:\n"); 426 ffs_dump_fsinfo(fsopts); 427 printf("ffs_validate: dir %s; %lld bytes, %lld inodes\n", 428 dir, (long long)fsopts->size, (long long)fsopts->inodes); 429 } 430 sectorsize = fsopts->sectorsize; /* XXX - see earlier */ 431 432 /* now check calculated sizes vs requested sizes */ 433 if (fsopts->maxsize > 0 && fsopts->size > fsopts->maxsize) { 434 errx(1, "`%s' size of %lld is larger than the maxsize of %lld.", 435 dir, (long long)fsopts->size, (long long)fsopts->maxsize); 436 } 437 } 438 439 440 static void 441 ffs_dump_fsinfo(fsinfo_t *f) 442 { 443 444 ffs_opt_t *fs = f->fs_specific; 445 446 printf("fsopts at %p\n", f); 447 448 printf("\tsize %lld, inodes %lld, curinode %u\n", 449 (long long)f->size, (long long)f->inodes, f->curinode); 450 451 printf("\tminsize %lld, maxsize %lld\n", 452 (long long)f->minsize, (long long)f->maxsize); 453 printf("\tfree files %lld, freefile %% %d\n", 454 (long long)f->freefiles, f->freefilepc); 455 printf("\tfree blocks %lld, freeblock %% %d\n", 456 (long long)f->freeblocks, f->freeblockpc); 457 printf("\tneedswap %d, sectorsize %d\n", f->needswap, f->sectorsize); 458 459 printf("\tbsize %d, fsize %d, cpg %d, density %d\n", 460 fs->bsize, fs->fsize, fs->cpg, fs->density); 461 printf("\tnsectors %d, rpm %d, minfree %d\n", 462 fs->nsectors, fs->rpm, fs->minfree); 463 printf("\tmaxcontig %d, maxbpg %d\n", 464 fs->maxcontig, fs->maxbpg); 465 printf("\toptimization %s\n", 466 fs->optimization == FS_OPTSPACE ? "space" : "time"); 467 } 468 469 470 static int 471 ffs_create_image(const char *image, fsinfo_t *fsopts) 472 { 473 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 474 struct statvfs sfs; 475 #endif 476 struct fs *fs; 477 char *buf; 478 int i, bufsize; 479 off_t bufrem; 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.\n"); 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 if ((buf = calloc(1, bufsize)) == NULL) { 519 warn("Can't create buffer for sector"); 520 return (-1); 521 } 522 } 523 while (bufrem > 0) { 524 i = write(fsopts->fd, buf, MIN(bufsize, bufrem)); 525 if (i == -1) { 526 warn("zeroing image, %lld bytes to go", 527 (long long)bufrem); 528 free(buf); 529 return (-1); 530 } 531 bufrem -= i; 532 } 533 if (buf) 534 free(buf); 535 536 /* make the file system */ 537 if (debug & DEBUG_FS_CREATE_IMAGE) 538 printf("calling mkfs(\"%s\", ...)\n", image); 539 fs = ffs_mkfs(image, fsopts); 540 fsopts->superblock = (void *)fs; 541 if (debug & DEBUG_FS_CREATE_IMAGE) { 542 time_t t; 543 544 t = (time_t)((struct fs *)fsopts->superblock)->fs_time; 545 printf("mkfs returned %p; fs_time %s", 546 fsopts->superblock, ctime(&t)); 547 printf("fs totals: nbfree %lld, nffree %lld, nifree %lld, ndir %lld\n", 548 (long long)fs->fs_cstotal.cs_nbfree, 549 (long long)fs->fs_cstotal.cs_nffree, 550 (long long)fs->fs_cstotal.cs_nifree, 551 (long long)fs->fs_cstotal.cs_ndir); 552 } 553 554 if (fs->fs_cstotal.cs_nifree + ROOTINO < fsopts->inodes) { 555 warnx( 556 "Image file `%s' has %lld free inodes; %lld are required.", 557 image, 558 (long long)(fs->fs_cstotal.cs_nifree + ROOTINO), 559 (long long)fsopts->inodes); 560 return (-1); 561 } 562 return (fsopts->fd); 563 } 564 565 566 static void 567 ffs_size_dir(fsnode *root, fsinfo_t *fsopts) 568 { 569 struct direct tmpdir; 570 fsnode * node; 571 int curdirsize, this; 572 ffs_opt_t *ffs_opts = fsopts->fs_specific; 573 574 /* node may be NULL (empty directory) */ 575 assert(fsopts != NULL); 576 assert(ffs_opts != NULL); 577 578 if (debug & DEBUG_FS_SIZE_DIR) 579 printf("ffs_size_dir: entry: bytes %lld inodes %lld\n", 580 (long long)fsopts->size, (long long)fsopts->inodes); 581 582 #define ADDDIRENT(e) do { \ 583 tmpdir.d_namlen = strlen((e)); \ 584 this = DIRSIZ_SWAP(0, &tmpdir, 0); \ 585 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 586 printf("ADDDIRENT: was: %s (%d) this %d cur %d\n", \ 587 e, tmpdir.d_namlen, this, curdirsize); \ 588 if (this + curdirsize > roundup(curdirsize, DIRBLKSIZ)) \ 589 curdirsize = roundup(curdirsize, DIRBLKSIZ); \ 590 curdirsize += this; \ 591 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 592 printf("ADDDIRENT: now: %s (%d) this %d cur %d\n", \ 593 e, tmpdir.d_namlen, this, curdirsize); \ 594 } while (0); 595 596 /* 597 * XXX this needs to take into account extra space consumed 598 * by indirect blocks, etc. 599 */ 600 #define ADDSIZE(x) do { \ 601 fsopts->size += roundup((x), ffs_opts->fsize); \ 602 } while (0); 603 604 curdirsize = 0; 605 for (node = root; node != NULL; node = node->next) { 606 ADDDIRENT(node->name); 607 if (node == root) { /* we're at "." */ 608 assert(strcmp(node->name, ".") == 0); 609 ADDDIRENT(".."); 610 } else if ((node->inode->flags & FI_SIZED) == 0) { 611 /* don't count duplicate names */ 612 node->inode->flags |= FI_SIZED; 613 if (debug & DEBUG_FS_SIZE_DIR_NODE) 614 printf("ffs_size_dir: `%s' size %lld\n", 615 node->name, 616 (long long)node->inode->st.st_size); 617 fsopts->inodes++; 618 if (node->type == S_IFREG) 619 ADDSIZE(node->inode->st.st_size); 620 if (node->type == S_IFLNK) { 621 int slen; 622 623 slen = strlen(node->symlink) + 1; 624 if (slen >= (ffs_opts->version == 1 ? 625 MAXSYMLINKLEN_UFS1 : 626 MAXSYMLINKLEN_UFS2)) 627 ADDSIZE(slen); 628 } 629 } 630 if (node->type == S_IFDIR) 631 ffs_size_dir(node->child, fsopts); 632 } 633 ADDSIZE(curdirsize); 634 635 if (debug & DEBUG_FS_SIZE_DIR) 636 printf("ffs_size_dir: exit: size %lld inodes %lld\n", 637 (long long)fsopts->size, (long long)fsopts->inodes); 638 } 639 640 static void * 641 ffs_build_dinode1(struct ufs1_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 642 fsnode *root, fsinfo_t *fsopts) 643 { 644 int slen; 645 void *membuf; 646 647 memset(dinp, 0, sizeof(*dinp)); 648 dinp->di_mode = cur->inode->st.st_mode; 649 dinp->di_nlink = cur->inode->nlink; 650 dinp->di_size = cur->inode->st.st_size; 651 dinp->di_atime = cur->inode->st.st_atime; 652 dinp->di_mtime = cur->inode->st.st_mtime; 653 dinp->di_ctime = cur->inode->st.st_ctime; 654 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 655 dinp->di_atimensec = cur->inode->st.st_atimensec; 656 dinp->di_mtimensec = cur->inode->st.st_mtimensec; 657 dinp->di_ctimensec = cur->inode->st.st_ctimensec; 658 #endif 659 #if HAVE_STRUCT_STAT_ST_FLAGS 660 dinp->di_flags = cur->inode->st.st_flags; 661 #endif 662 #if HAVE_STRUCT_STAT_ST_GEN 663 dinp->di_gen = cur->inode->st.st_gen; 664 #endif 665 dinp->di_uid = cur->inode->st.st_uid; 666 dinp->di_gid = cur->inode->st.st_gid; 667 /* not set: di_db, di_ib, di_blocks, di_spare */ 668 669 membuf = NULL; 670 if (cur == root) { /* "."; write dirbuf */ 671 membuf = dbufp->buf; 672 dinp->di_size = dbufp->size; 673 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 674 dinp->di_size = 0; /* a device */ 675 dinp->di_rdev = 676 ufs_rw32(cur->inode->st.st_rdev, fsopts->needswap); 677 } else if (S_ISLNK(cur->type)) { /* symlink */ 678 slen = strlen(cur->symlink); 679 if (slen < MAXSYMLINKLEN_UFS1) { /* short link */ 680 memcpy(dinp->di_db, cur->symlink, slen); 681 } else 682 membuf = cur->symlink; 683 dinp->di_size = slen; 684 } 685 return membuf; 686 } 687 688 static void * 689 ffs_build_dinode2(struct ufs2_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 690 fsnode *root, fsinfo_t *fsopts) 691 { 692 int slen; 693 void *membuf; 694 695 memset(dinp, 0, sizeof(*dinp)); 696 dinp->di_mode = cur->inode->st.st_mode; 697 dinp->di_nlink = cur->inode->nlink; 698 dinp->di_size = cur->inode->st.st_size; 699 dinp->di_atime = cur->inode->st.st_atime; 700 dinp->di_mtime = cur->inode->st.st_mtime; 701 dinp->di_ctime = cur->inode->st.st_ctime; 702 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 703 dinp->di_atimensec = cur->inode->st.st_atimensec; 704 dinp->di_mtimensec = cur->inode->st.st_mtimensec; 705 dinp->di_ctimensec = cur->inode->st.st_ctimensec; 706 #endif 707 #if HAVE_STRUCT_STAT_ST_FLAGS 708 dinp->di_flags = cur->inode->st.st_flags; 709 #endif 710 #if HAVE_STRUCT_STAT_ST_GEN 711 dinp->di_gen = cur->inode->st.st_gen; 712 #endif 713 #if HAVE_STRUCT_STAT_BIRTHTIME 714 dinp->di_birthtime = cur->inode->st.st_birthtime; 715 dinp->di_birthnsec = cur->inode->st.st_birthtimensec; 716 #endif 717 dinp->di_uid = cur->inode->st.st_uid; 718 dinp->di_gid = cur->inode->st.st_gid; 719 /* not set: di_db, di_ib, di_blocks, di_spare */ 720 721 membuf = NULL; 722 if (cur == root) { /* "."; write dirbuf */ 723 membuf = dbufp->buf; 724 dinp->di_size = dbufp->size; 725 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 726 dinp->di_size = 0; /* a device */ 727 dinp->di_rdev = 728 ufs_rw64(cur->inode->st.st_rdev, fsopts->needswap); 729 } else if (S_ISLNK(cur->type)) { /* symlink */ 730 slen = strlen(cur->symlink); 731 if (slen < MAXSYMLINKLEN_UFS2) { /* short link */ 732 memcpy(dinp->di_db, cur->symlink, slen); 733 } else 734 membuf = cur->symlink; 735 dinp->di_size = slen; 736 } 737 return membuf; 738 } 739 740 static int 741 ffs_populate_dir(const char *dir, fsnode *root, fsinfo_t *fsopts) 742 { 743 fsnode *cur; 744 dirbuf_t dirbuf; 745 union dinode din; 746 void *membuf; 747 char path[MAXPATHLEN + 1]; 748 ffs_opt_t *ffs_opts = fsopts->fs_specific; 749 750 assert(dir != NULL); 751 assert(root != NULL); 752 assert(fsopts != NULL); 753 assert(ffs_opts != NULL); 754 755 (void)memset(&dirbuf, 0, sizeof(dirbuf)); 756 757 if (debug & DEBUG_FS_POPULATE) 758 printf("ffs_populate_dir: PASS 1 dir %s node %p\n", dir, root); 759 760 /* 761 * pass 1: allocate inode numbers, build directory `file' 762 */ 763 for (cur = root; cur != NULL; cur = cur->next) { 764 if ((cur->inode->flags & FI_ALLOCATED) == 0) { 765 cur->inode->flags |= FI_ALLOCATED; 766 if (cur == root && cur->parent != NULL) 767 cur->inode->ino = cur->parent->inode->ino; 768 else { 769 cur->inode->ino = fsopts->curinode; 770 fsopts->curinode++; 771 } 772 } 773 ffs_make_dirbuf(&dirbuf, cur->name, cur, fsopts->needswap); 774 if (cur == root) { /* we're at "."; add ".." */ 775 ffs_make_dirbuf(&dirbuf, "..", 776 cur->parent == NULL ? cur : cur->parent->first, 777 fsopts->needswap); 778 root->inode->nlink++; /* count my parent's link */ 779 } else if (cur->child != NULL) 780 root->inode->nlink++; /* count my child's link */ 781 782 /* 783 * XXX possibly write file and long symlinks here, 784 * ensuring that blocks get written before inodes? 785 * otoh, this isn't a real filesystem, so who 786 * cares about ordering? :-) 787 */ 788 } 789 if (debug & DEBUG_FS_POPULATE_DIRBUF) 790 ffs_dump_dirbuf(&dirbuf, dir, fsopts->needswap); 791 792 /* 793 * pass 2: write out dirbuf, then non-directories at this level 794 */ 795 if (debug & DEBUG_FS_POPULATE) 796 printf("ffs_populate_dir: PASS 2 dir %s\n", dir); 797 for (cur = root; cur != NULL; cur = cur->next) { 798 if (cur->inode->flags & FI_WRITTEN) 799 continue; /* skip hard-linked entries */ 800 cur->inode->flags |= FI_WRITTEN; 801 802 if (cur->contents == NULL) { 803 if (snprintf(path, sizeof(path), "%s/%s/%s", cur->root, 804 cur->path, cur->name) >= (int)sizeof(path)) 805 errx(1, "Pathname too long."); 806 } 807 808 if (cur->child != NULL) 809 continue; /* child creates own inode */ 810 811 /* build on-disk inode */ 812 if (ffs_opts->version == 1) 813 membuf = ffs_build_dinode1(&din.ffs1_din, &dirbuf, cur, 814 root, fsopts); 815 else 816 membuf = ffs_build_dinode2(&din.ffs2_din, &dirbuf, cur, 817 root, fsopts); 818 819 if (debug & DEBUG_FS_POPULATE_NODE) { 820 printf("ffs_populate_dir: writing ino %d, %s", 821 cur->inode->ino, inode_type(cur->type)); 822 if (cur->inode->nlink > 1) 823 printf(", nlink %d", cur->inode->nlink); 824 putchar('\n'); 825 } 826 827 if (membuf != NULL) { 828 ffs_write_file(&din, cur->inode->ino, membuf, fsopts); 829 } else if (S_ISREG(cur->type)) { 830 ffs_write_file(&din, cur->inode->ino, 831 (cur->contents) ? cur->contents : path, fsopts); 832 } else { 833 assert (! S_ISDIR(cur->type)); 834 ffs_write_inode(&din, cur->inode->ino, fsopts); 835 } 836 } 837 838 /* 839 * pass 3: write out sub-directories 840 */ 841 if (debug & DEBUG_FS_POPULATE) 842 printf("ffs_populate_dir: PASS 3 dir %s\n", dir); 843 for (cur = root; cur != NULL; cur = cur->next) { 844 if (cur->child == NULL) 845 continue; 846 if (snprintf(path, sizeof(path), "%s/%s", dir, cur->name) 847 >= sizeof(path)) 848 errx(1, "Pathname too long."); 849 if (! ffs_populate_dir(path, cur->child, fsopts)) 850 return (0); 851 } 852 853 if (debug & DEBUG_FS_POPULATE) 854 printf("ffs_populate_dir: DONE dir %s\n", dir); 855 856 /* cleanup */ 857 if (dirbuf.buf != NULL) 858 free(dirbuf.buf); 859 return (1); 860 } 861 862 863 static void 864 ffs_write_file(union dinode *din, uint32_t ino, void *buf, fsinfo_t *fsopts) 865 { 866 int isfile, ffd; 867 char *fbuf, *p; 868 off_t bufleft, chunk, offset; 869 ssize_t nread; 870 struct inode in; 871 struct buf * bp; 872 ffs_opt_t *ffs_opts = fsopts->fs_specific; 873 874 assert (din != NULL); 875 assert (buf != NULL); 876 assert (fsopts != NULL); 877 assert (ffs_opts != NULL); 878 879 isfile = S_ISREG(DIP(din, mode)); 880 fbuf = NULL; 881 ffd = -1; 882 p = NULL; 883 884 in.i_fs = (struct fs *)fsopts->superblock; 885 886 if (debug & DEBUG_FS_WRITE_FILE) { 887 printf( 888 "ffs_write_file: ino %u, din %p, isfile %d, %s, size %lld", 889 ino, din, isfile, inode_type(DIP(din, mode) & S_IFMT), 890 (long long)DIP(din, size)); 891 if (isfile) 892 printf(", file '%s'\n", (char *)buf); 893 else 894 printf(", buffer %p\n", buf); 895 } 896 897 in.i_number = ino; 898 in.i_size = DIP(din, size); 899 if (ffs_opts->version == 1) 900 memcpy(&in.i_din.ffs1_din, &din->ffs1_din, 901 sizeof(in.i_din.ffs1_din)); 902 else 903 memcpy(&in.i_din.ffs2_din, &din->ffs2_din, 904 sizeof(in.i_din.ffs2_din)); 905 in.i_fd = fsopts->fd; 906 907 if (DIP(din, size) == 0) 908 goto write_inode_and_leave; /* mmm, cheating */ 909 910 if (isfile) { 911 if ((fbuf = malloc(ffs_opts->bsize)) == NULL) 912 err(1, "Allocating memory for write buffer"); 913 if ((ffd = open((char *)buf, O_RDONLY, 0444)) == -1) { 914 warn("Can't open `%s' for reading", (char *)buf); 915 goto leave_ffs_write_file; 916 } 917 } else { 918 p = buf; 919 } 920 921 chunk = 0; 922 for (bufleft = DIP(din, size); bufleft > 0; bufleft -= chunk) { 923 chunk = MIN(bufleft, ffs_opts->bsize); 924 if (!isfile) 925 ; 926 else if ((nread = read(ffd, fbuf, chunk)) == -1) 927 err(EXIT_FAILURE, "Reading `%s', %lld bytes to go", 928 (char *)buf, (long long)bufleft); 929 else if (nread != chunk) 930 errx(EXIT_FAILURE, "Reading `%s', %lld bytes to go, " 931 "read %zd bytes, expected %ju bytes, does " 932 "metalog size= attribute mismatch source size?", 933 (char *)buf, (long long)bufleft, nread, 934 (uintmax_t)chunk); 935 else 936 p = fbuf; 937 offset = DIP(din, size) - bufleft; 938 if (debug & DEBUG_FS_WRITE_FILE_BLOCK) 939 printf( 940 "ffs_write_file: write %p offset %lld size %lld left %lld\n", 941 p, (long long)offset, 942 (long long)chunk, (long long)bufleft); 943 /* 944 * XXX if holey support is desired, do the check here 945 * 946 * XXX might need to write out last bit in fragroundup 947 * sized chunk. however, ffs_balloc() handles this for us 948 */ 949 errno = ffs_balloc(&in, offset, chunk, &bp); 950 bad_ffs_write_file: 951 if (errno != 0) 952 err(1, 953 "Writing inode %d (%s), bytes %lld + %lld", 954 ino, 955 isfile ? (char *)buf : 956 inode_type(DIP(din, mode) & S_IFMT), 957 (long long)offset, (long long)chunk); 958 memcpy(bp->b_data, p, chunk); 959 errno = bwrite(bp); 960 if (errno != 0) 961 goto bad_ffs_write_file; 962 brelse(bp); 963 if (!isfile) 964 p += chunk; 965 } 966 967 write_inode_and_leave: 968 ffs_write_inode(&in.i_din, in.i_number, fsopts); 969 970 leave_ffs_write_file: 971 if (fbuf) 972 free(fbuf); 973 if (ffd != -1) 974 close(ffd); 975 } 976 977 978 static void 979 ffs_dump_dirbuf(dirbuf_t *dbuf, const char *dir, int needswap) 980 { 981 doff_t i; 982 struct direct *de; 983 uint16_t reclen; 984 985 assert (dbuf != NULL); 986 assert (dir != NULL); 987 printf("ffs_dump_dirbuf: dir %s size %d cur %d\n", 988 dir, dbuf->size, dbuf->cur); 989 990 for (i = 0; i < dbuf->size; ) { 991 de = (struct direct *)(dbuf->buf + i); 992 reclen = ufs_rw16(de->d_reclen, needswap); 993 printf( 994 " inode %4d %7s offset %4d reclen %3d namlen %3d name %s\n", 995 ufs_rw32(de->d_ino, needswap), 996 inode_type(DTTOIF(de->d_type)), i, reclen, 997 de->d_namlen, de->d_name); 998 i += reclen; 999 assert(reclen > 0); 1000 } 1001 } 1002 1003 static void 1004 ffs_make_dirbuf(dirbuf_t *dbuf, const char *name, fsnode *node, int needswap) 1005 { 1006 struct direct de, *dp; 1007 uint16_t llen, reclen; 1008 u_char *newbuf; 1009 1010 assert (dbuf != NULL); 1011 assert (name != NULL); 1012 assert (node != NULL); 1013 /* create direct entry */ 1014 (void)memset(&de, 0, sizeof(de)); 1015 de.d_ino = ufs_rw32(node->inode->ino, needswap); 1016 de.d_type = IFTODT(node->type); 1017 de.d_namlen = (uint8_t)strlen(name); 1018 strcpy(de.d_name, name); 1019 reclen = DIRSIZ_SWAP(0, &de, needswap); 1020 de.d_reclen = ufs_rw16(reclen, needswap); 1021 1022 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1023 llen = 0; 1024 if (dp != NULL) 1025 llen = DIRSIZ_SWAP(0, dp, needswap); 1026 1027 if (debug & DEBUG_FS_MAKE_DIRBUF) 1028 printf( 1029 "ffs_make_dirbuf: dbuf siz %d cur %d lastlen %d\n" 1030 " ino %d type %d reclen %d namlen %d name %.30s\n", 1031 dbuf->size, dbuf->cur, llen, 1032 ufs_rw32(de.d_ino, needswap), de.d_type, reclen, 1033 de.d_namlen, de.d_name); 1034 1035 if (reclen + dbuf->cur + llen > roundup(dbuf->size, DIRBLKSIZ)) { 1036 if (debug & DEBUG_FS_MAKE_DIRBUF) 1037 printf("ffs_make_dirbuf: growing buf to %d\n", 1038 dbuf->size + DIRBLKSIZ); 1039 if ((newbuf = realloc(dbuf->buf, dbuf->size + DIRBLKSIZ)) == NULL) 1040 err(1, "Allocating memory for directory buffer"); 1041 dbuf->buf = newbuf; 1042 dbuf->size += DIRBLKSIZ; 1043 memset(dbuf->buf + dbuf->size - DIRBLKSIZ, 0, DIRBLKSIZ); 1044 dbuf->cur = dbuf->size - DIRBLKSIZ; 1045 } else if (dp) { /* shrink end of previous */ 1046 dp->d_reclen = ufs_rw16(llen,needswap); 1047 dbuf->cur += llen; 1048 } 1049 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1050 memcpy(dp, &de, reclen); 1051 dp->d_reclen = ufs_rw16(dbuf->size - dbuf->cur, needswap); 1052 } 1053 1054 /* 1055 * cribbed from sys/ufs/ffs/ffs_alloc.c 1056 */ 1057 static void 1058 ffs_write_inode(union dinode *dp, uint32_t ino, const fsinfo_t *fsopts) 1059 { 1060 char *buf; 1061 struct ufs1_dinode *dp1; 1062 struct ufs2_dinode *dp2, *dip; 1063 struct cg *cgp; 1064 struct fs *fs; 1065 int cg, cgino, i; 1066 daddr_t d; 1067 char sbbuf[FFS_MAXBSIZE]; 1068 int32_t initediblk; 1069 ffs_opt_t *ffs_opts = fsopts->fs_specific; 1070 1071 assert (dp != NULL); 1072 assert (ino > 0); 1073 assert (fsopts != NULL); 1074 assert (ffs_opts != NULL); 1075 1076 fs = (struct fs *)fsopts->superblock; 1077 cg = ino_to_cg(fs, ino); 1078 cgino = ino % fs->fs_ipg; 1079 if (debug & DEBUG_FS_WRITE_INODE) 1080 printf("ffs_write_inode: din %p ino %u cg %d cgino %d\n", 1081 dp, ino, cg, cgino); 1082 1083 ffs_rdfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1084 fsopts); 1085 cgp = (struct cg *)sbbuf; 1086 if (!cg_chkmagic_swap(cgp, fsopts->needswap)) 1087 errx(1, "ffs_write_inode: cg %d: bad magic number", cg); 1088 1089 assert (isclr(cg_inosused_swap(cgp, fsopts->needswap), cgino)); 1090 1091 buf = malloc(fs->fs_bsize); 1092 if (buf == NULL) 1093 errx(1, "ffs_write_inode: cg %d: can't alloc inode block", cg); 1094 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 srandom(time(NULL)); 1124 for (i = 0; i < INOPB(fs); i++) { 1125 dip->di_gen = random() / 2 + 1; 1126 dip++; 1127 } 1128 ffs_wtfs(fsbtodb(fs, ino_to_fsba(fs, 1129 cg * fs->fs_ipg + initediblk)), 1130 fs->fs_bsize, buf, fsopts); 1131 initediblk += INOPB(fs); 1132 cgp->cg_initediblk = ufs_rw32(initediblk, fsopts->needswap); 1133 } 1134 1135 1136 ffs_wtfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1137 fsopts); 1138 1139 /* now write inode */ 1140 d = fsbtodb(fs, ino_to_fsba(fs, ino)); 1141 ffs_rdfs(d, fs->fs_bsize, buf, fsopts); 1142 if (fsopts->needswap) { 1143 if (ffs_opts->version == 1) 1144 ffs_dinode1_swap(&dp->ffs1_din, 1145 &dp1[ino_to_fsbo(fs, ino)]); 1146 else 1147 ffs_dinode2_swap(&dp->ffs2_din, 1148 &dp2[ino_to_fsbo(fs, ino)]); 1149 } else { 1150 if (ffs_opts->version == 1) 1151 dp1[ino_to_fsbo(fs, ino)] = dp->ffs1_din; 1152 else 1153 dp2[ino_to_fsbo(fs, ino)] = dp->ffs2_din; 1154 } 1155 ffs_wtfs(d, fs->fs_bsize, buf, fsopts); 1156 free(buf); 1157 } 1158 1159 void 1160 panic(const char *fmt, ...) 1161 { 1162 va_list ap; 1163 1164 va_start(ap, fmt); 1165 vwarnx(fmt, ap); 1166 va_end(ap); 1167 exit(1); 1168 } 1169