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: stable/11/usr.sbin/makefs/ffs.c 332981 2018-04-25 01:48:15Z benno $"); 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 4096 /* fragment size */ 113#define DFL_BLKSIZE 32768 /* 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 124typedef 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 131static int ffs_create_image(const char *, fsinfo_t *); 132static void ffs_dump_fsinfo(fsinfo_t *); 133static void ffs_dump_dirbuf(dirbuf_t *, const char *, int); 134static void ffs_make_dirbuf(dirbuf_t *, const char *, fsnode *, int); 135static int ffs_populate_dir(const char *, fsnode *, fsinfo_t *); 136static void ffs_size_dir(fsnode *, fsinfo_t *); 137static void ffs_validate(const char *, fsnode *, fsinfo_t *); 138static void ffs_write_file(union dinode *, uint32_t, void *, fsinfo_t *); 139static void ffs_write_inode(union dinode *, uint32_t, const fsinfo_t *); 140static void *ffs_build_dinode1(struct ufs1_dinode *, dirbuf_t *, fsnode *, 141 fsnode *, fsinfo_t *); 142static void *ffs_build_dinode2(struct ufs2_dinode *, dirbuf_t *, fsnode *, 143 fsnode *, fsinfo_t *); 144 145 146 147int sectorsize; /* XXX: for buf.c::getblk() */ 148 /* publicly visible functions */ 149 150void 151ffs_prep_opts(fsinfo_t *fsopts) 152{ 153 ffs_opt_t *ffs_opts = ecalloc(1, sizeof(*ffs_opts)); 154 155 const option_t ffs_options[] = { 156 { 'b', "bsize", &ffs_opts->bsize, OPT_INT32, 157 1, INT_MAX, "block size" }, 158 { 'f', "fsize", &ffs_opts->fsize, OPT_INT32, 159 1, INT_MAX, "fragment size" }, 160 { 'd', "density", &ffs_opts->density, OPT_INT32, 161 1, INT_MAX, "bytes per inode" }, 162 { 'm', "minfree", &ffs_opts->minfree, OPT_INT32, 163 0, 99, "minfree" }, 164 { 'M', "maxbpg", &ffs_opts->maxbpg, OPT_INT32, 165 1, INT_MAX, "max blocks per file in a cg" }, 166 { 'a', "avgfilesize", &ffs_opts->avgfilesize, OPT_INT32, 167 1, INT_MAX, "expected average file size" }, 168 { 'n', "avgfpdir", &ffs_opts->avgfpdir, OPT_INT32, 169 1, INT_MAX, "expected # of files per directory" }, 170 { 'x', "extent", &ffs_opts->maxbsize, OPT_INT32, 171 1, INT_MAX, "maximum # extent size" }, 172 { 'g', "maxbpcg", &ffs_opts->maxblkspercg, OPT_INT32, 173 1, INT_MAX, "max # of blocks per group" }, 174 { 'v', "version", &ffs_opts->version, OPT_INT32, 175 1, 2, "UFS version" }, 176 { 'o', "optimization", NULL, OPT_STRBUF, 177 0, 0, "Optimization (time|space)" }, 178 { 'l', "label", ffs_opts->label, OPT_STRARRAY, 179 1, sizeof(ffs_opts->label), "UFS label" }, 180 { .name = NULL } 181 }; 182 183 ffs_opts->bsize= -1; 184 ffs_opts->fsize= -1; 185 ffs_opts->cpg= -1; 186 ffs_opts->density= -1; 187 ffs_opts->minfree= -1; 188 ffs_opts->optimization= -1; 189 ffs_opts->maxcontig= -1; 190 ffs_opts->maxbpg= -1; 191 ffs_opts->avgfilesize= -1; 192 ffs_opts->avgfpdir= -1; 193 ffs_opts->version = 1; 194 195 fsopts->fs_specific = ffs_opts; 196 fsopts->fs_options = copy_opts(ffs_options); 197} 198 199void 200ffs_cleanup_opts(fsinfo_t *fsopts) 201{ 202 free(fsopts->fs_specific); 203 free(fsopts->fs_options); 204} 205 206int 207ffs_parse_opts(const char *option, fsinfo_t *fsopts) 208{ 209 ffs_opt_t *ffs_opts = fsopts->fs_specific; 210 option_t *ffs_options = fsopts->fs_options; 211 char buf[1024]; 212 213 int rv; 214 215 assert(option != NULL); 216 assert(fsopts != NULL); 217 assert(ffs_opts != NULL); 218 219 if (debug & DEBUG_FS_PARSE_OPTS) 220 printf("ffs_parse_opts: got `%s'\n", option); 221 222 rv = set_option(ffs_options, option, buf, sizeof(buf)); 223 if (rv == -1) 224 return 0; 225 226 if (ffs_options[rv].name == NULL) 227 abort(); 228 229 switch (ffs_options[rv].letter) { 230 case 'o': 231 if (strcmp(buf, "time") == 0) { 232 ffs_opts->optimization = FS_OPTTIME; 233 } else if (strcmp(buf, "space") == 0) { 234 ffs_opts->optimization = FS_OPTSPACE; 235 } else { 236 warnx("Invalid optimization `%s'", buf); 237 return 0; 238 } 239 break; 240 default: 241 break; 242 } 243 return 1; 244} 245 246 247void 248ffs_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts) 249{ 250 struct fs *superblock; 251 struct timeval start; 252 253 assert(image != NULL); 254 assert(dir != NULL); 255 assert(root != NULL); 256 assert(fsopts != NULL); 257 258 if (debug & DEBUG_FS_MAKEFS) 259 printf("ffs_makefs: image %s directory %s root %p\n", 260 image, dir, root); 261 262 /* validate tree and options */ 263 TIMER_START(start); 264 ffs_validate(dir, root, fsopts); 265 TIMER_RESULTS(start, "ffs_validate"); 266 267 printf("Calculated size of `%s': %lld bytes, %lld inodes\n", 268 image, (long long)fsopts->size, (long long)fsopts->inodes); 269 270 /* create image */ 271 TIMER_START(start); 272 if (ffs_create_image(image, fsopts) == -1) 273 errx(1, "Image file `%s' not created.", image); 274 TIMER_RESULTS(start, "ffs_create_image"); 275 276 fsopts->curinode = ROOTINO; 277 278 if (debug & DEBUG_FS_MAKEFS) 279 putchar('\n'); 280 281 /* populate image */ 282 printf("Populating `%s'\n", image); 283 TIMER_START(start); 284 if (! ffs_populate_dir(dir, root, fsopts)) 285 errx(1, "Image file `%s' not populated.", image); 286 TIMER_RESULTS(start, "ffs_populate_dir"); 287 288 /* ensure no outstanding buffers remain */ 289 if (debug & DEBUG_FS_MAKEFS) 290 bcleanup(); 291 292 /* update various superblock parameters */ 293 superblock = fsopts->superblock; 294 superblock->fs_fmod = 0; 295 superblock->fs_old_cstotal.cs_ndir = superblock->fs_cstotal.cs_ndir; 296 superblock->fs_old_cstotal.cs_nbfree = superblock->fs_cstotal.cs_nbfree; 297 superblock->fs_old_cstotal.cs_nifree = superblock->fs_cstotal.cs_nifree; 298 superblock->fs_old_cstotal.cs_nffree = superblock->fs_cstotal.cs_nffree; 299 300 /* write out superblock; image is now complete */ 301 ffs_write_superblock(fsopts->superblock, fsopts); 302 if (close(fsopts->fd) == -1) 303 err(1, "Closing `%s'", image); 304 fsopts->fd = -1; 305 printf("Image `%s' complete\n", image); 306} 307 308 /* end of public functions */ 309 310 311static void 312ffs_validate(const char *dir, fsnode *root, fsinfo_t *fsopts) 313{ 314 int32_t ncg = 1; 315#if notyet 316 int32_t spc, nspf, ncyl, fssize; 317#endif 318 ffs_opt_t *ffs_opts = fsopts->fs_specific; 319 320 assert(dir != NULL); 321 assert(root != NULL); 322 assert(fsopts != NULL); 323 assert(ffs_opts != NULL); 324 325 if (debug & DEBUG_FS_VALIDATE) { 326 printf("ffs_validate: before defaults set:\n"); 327 ffs_dump_fsinfo(fsopts); 328 } 329 330 /* set FFS defaults */ 331 if (fsopts->sectorsize == -1) 332 fsopts->sectorsize = DFL_SECSIZE; 333 if (ffs_opts->fsize == -1) 334 ffs_opts->fsize = MAX(DFL_FRAGSIZE, fsopts->sectorsize); 335 if (ffs_opts->bsize == -1) 336 ffs_opts->bsize = MIN(DFL_BLKSIZE, 8 * ffs_opts->fsize); 337 if (ffs_opts->cpg == -1) 338 ffs_opts->cpg = DFL_CYLSPERGROUP; 339 else 340 ffs_opts->cpgflg = 1; 341 /* fsopts->density is set below */ 342 if (ffs_opts->nsectors == -1) 343 ffs_opts->nsectors = DFL_NSECTORS; 344 if (ffs_opts->minfree == -1) 345 ffs_opts->minfree = MINFREE; 346 if (ffs_opts->optimization == -1) 347 ffs_opts->optimization = DEFAULTOPT; 348 if (ffs_opts->maxcontig == -1) 349 ffs_opts->maxcontig = 350 MAX(1, MIN(MAXPHYS, FFS_MAXBSIZE) / ffs_opts->bsize); 351 /* XXX ondisk32 */ 352 if (ffs_opts->maxbpg == -1) 353 ffs_opts->maxbpg = ffs_opts->bsize / sizeof(int32_t); 354 if (ffs_opts->avgfilesize == -1) 355 ffs_opts->avgfilesize = AVFILESIZ; 356 if (ffs_opts->avgfpdir == -1) 357 ffs_opts->avgfpdir = AFPDIR; 358 359 if (fsopts->maxsize > 0 && 360 roundup(fsopts->minsize, ffs_opts->bsize) > fsopts->maxsize) 361 errx(1, "`%s' minsize of %lld rounded up to ffs bsize of %d " 362 "exceeds maxsize %lld. Lower bsize, or round the minimum " 363 "and maximum sizes to bsize.", dir, 364 (long long)fsopts->minsize, ffs_opts->bsize, 365 (long long)fsopts->maxsize); 366 367 /* calculate size of tree */ 368 ffs_size_dir(root, fsopts); 369 fsopts->inodes += ROOTINO; /* include first two inodes */ 370 371 if (debug & DEBUG_FS_VALIDATE) 372 printf("ffs_validate: size of tree: %lld bytes, %lld inodes\n", 373 (long long)fsopts->size, (long long)fsopts->inodes); 374 375 /* add requested slop */ 376 fsopts->size += fsopts->freeblocks; 377 fsopts->inodes += fsopts->freefiles; 378 if (fsopts->freefilepc > 0) 379 fsopts->inodes = 380 fsopts->inodes * (100 + fsopts->freefilepc) / 100; 381 if (fsopts->freeblockpc > 0) 382 fsopts->size = 383 fsopts->size * (100 + fsopts->freeblockpc) / 100; 384 385 /* add space needed for superblocks */ 386 /* 387 * The old SBOFF (SBLOCK_UFS1) is used here because makefs is 388 * typically used for small filesystems where space matters. 389 * XXX make this an option. 390 */ 391 fsopts->size += (SBLOCK_UFS1 + SBLOCKSIZE) * ncg; 392 /* add space needed to store inodes, x3 for blockmaps, etc */ 393 if (ffs_opts->version == 1) 394 fsopts->size += ncg * DINODE1_SIZE * 395 roundup(fsopts->inodes / ncg, 396 ffs_opts->bsize / DINODE1_SIZE); 397 else 398 fsopts->size += ncg * DINODE2_SIZE * 399 roundup(fsopts->inodes / ncg, 400 ffs_opts->bsize / DINODE2_SIZE); 401 402 /* add minfree */ 403 if (ffs_opts->minfree > 0) 404 fsopts->size = 405 fsopts->size * (100 + ffs_opts->minfree) / 100; 406 /* 407 * XXX any other fs slop to add, such as csum's, bitmaps, etc ?? 408 */ 409 410 if (fsopts->size < fsopts->minsize) /* ensure meets minimum size */ 411 fsopts->size = fsopts->minsize; 412 413 /* round up to the next block */ 414 fsopts->size = roundup(fsopts->size, ffs_opts->bsize); 415 416 /* round up to requested block size, if any */ 417 if (fsopts->roundup > 0) 418 fsopts->size = roundup(fsopts->size, fsopts->roundup); 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 440static void 441ffs_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 470static int 471ffs_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 time_t tstamp; 481 482 assert (image != NULL); 483 assert (fsopts != NULL); 484 485 /* create image */ 486 if ((fsopts->fd = open(image, O_RDWR | O_CREAT | O_TRUNC, 0666)) 487 == -1) { 488 warn("Can't open `%s' for writing", image); 489 return (-1); 490 } 491 492 /* zero image */ 493#if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 494 if (fstatvfs(fsopts->fd, &sfs) == -1) { 495#endif 496 bufsize = 8192; 497#if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 498 warn("can't fstatvfs `%s', using default %d byte chunk", 499 image, bufsize); 500 } else 501 bufsize = sfs.f_iosize; 502#endif 503 bufrem = fsopts->size; 504 if (fsopts->sparse) { 505 if (ftruncate(fsopts->fd, bufrem) == -1) { 506 warn("sparse option disabled.\n"); 507 fsopts->sparse = 0; 508 } 509 } 510 if (fsopts->sparse) { 511 /* File truncated at bufrem. Remaining is 0 */ 512 bufrem = 0; 513 buf = NULL; 514 } else { 515 if (debug & DEBUG_FS_CREATE_IMAGE) 516 printf("zero-ing image `%s', %lld sectors, " 517 "using %d byte chunks\n", image, (long long)bufrem, 518 bufsize); 519 buf = ecalloc(1, bufsize); 520 } 521 while (bufrem > 0) { 522 i = write(fsopts->fd, buf, MIN(bufsize, bufrem)); 523 if (i == -1) { 524 warn("zeroing image, %lld bytes to go", 525 (long long)bufrem); 526 free(buf); 527 return (-1); 528 } 529 bufrem -= i; 530 } 531 if (buf) 532 free(buf); 533 534 /* make the file system */ 535 if (debug & DEBUG_FS_CREATE_IMAGE) 536 printf("calling mkfs(\"%s\", ...)\n", image); 537 538 if (stampst.st_ino != 0) 539 tstamp = stampst.st_ctime; 540 else 541 tstamp = start_time.tv_sec; 542 543 srandom(tstamp); 544 545 fs = ffs_mkfs(image, fsopts, tstamp); 546 fsopts->superblock = (void *)fs; 547 if (debug & DEBUG_FS_CREATE_IMAGE) { 548 time_t t; 549 550 t = (time_t)((struct fs *)fsopts->superblock)->fs_time; 551 printf("mkfs returned %p; fs_time %s", 552 fsopts->superblock, ctime(&t)); 553 printf("fs totals: nbfree %lld, nffree %lld, nifree %lld, ndir %lld\n", 554 (long long)fs->fs_cstotal.cs_nbfree, 555 (long long)fs->fs_cstotal.cs_nffree, 556 (long long)fs->fs_cstotal.cs_nifree, 557 (long long)fs->fs_cstotal.cs_ndir); 558 } 559 560 if (fs->fs_cstotal.cs_nifree + ROOTINO < fsopts->inodes) { 561 warnx( 562 "Image file `%s' has %lld free inodes; %lld are required.", 563 image, 564 (long long)(fs->fs_cstotal.cs_nifree + ROOTINO), 565 (long long)fsopts->inodes); 566 return (-1); 567 } 568 return (fsopts->fd); 569} 570 571 572static void 573ffs_size_dir(fsnode *root, fsinfo_t *fsopts) 574{ 575 struct direct tmpdir; 576 fsnode * node; 577 int curdirsize, this; 578 ffs_opt_t *ffs_opts = fsopts->fs_specific; 579 580 /* node may be NULL (empty directory) */ 581 assert(fsopts != NULL); 582 assert(ffs_opts != NULL); 583 584 if (debug & DEBUG_FS_SIZE_DIR) 585 printf("ffs_size_dir: entry: bytes %lld inodes %lld\n", 586 (long long)fsopts->size, (long long)fsopts->inodes); 587 588#define ADDDIRENT(e) do { \ 589 tmpdir.d_namlen = strlen((e)); \ 590 this = DIRSIZ_SWAP(0, &tmpdir, 0); \ 591 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 592 printf("ADDDIRENT: was: %s (%d) this %d cur %d\n", \ 593 e, tmpdir.d_namlen, this, curdirsize); \ 594 if (this + curdirsize > roundup(curdirsize, DIRBLKSIZ)) \ 595 curdirsize = roundup(curdirsize, DIRBLKSIZ); \ 596 curdirsize += this; \ 597 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 598 printf("ADDDIRENT: now: %s (%d) this %d cur %d\n", \ 599 e, tmpdir.d_namlen, this, curdirsize); \ 600} while (0); 601 602 /* 603 * XXX this needs to take into account extra space consumed 604 * by indirect blocks, etc. 605 */ 606#define ADDSIZE(x) do { \ 607 fsopts->size += roundup((x), ffs_opts->fsize); \ 608} while (0); 609 610 curdirsize = 0; 611 for (node = root; node != NULL; node = node->next) { 612 ADDDIRENT(node->name); 613 if (node == root) { /* we're at "." */ 614 assert(strcmp(node->name, ".") == 0); 615 ADDDIRENT(".."); 616 } else if ((node->inode->flags & FI_SIZED) == 0) { 617 /* don't count duplicate names */ 618 node->inode->flags |= FI_SIZED; 619 if (debug & DEBUG_FS_SIZE_DIR_NODE) 620 printf("ffs_size_dir: `%s' size %lld\n", 621 node->name, 622 (long long)node->inode->st.st_size); 623 fsopts->inodes++; 624 if (node->type == S_IFREG) 625 ADDSIZE(node->inode->st.st_size); 626 if (node->type == S_IFLNK) { 627 int slen; 628 629 slen = strlen(node->symlink) + 1; 630 if (slen >= (ffs_opts->version == 1 ? 631 MAXSYMLINKLEN_UFS1 : 632 MAXSYMLINKLEN_UFS2)) 633 ADDSIZE(slen); 634 } 635 } 636 if (node->type == S_IFDIR) 637 ffs_size_dir(node->child, fsopts); 638 } 639 ADDSIZE(curdirsize); 640 641 if (debug & DEBUG_FS_SIZE_DIR) 642 printf("ffs_size_dir: exit: size %lld inodes %lld\n", 643 (long long)fsopts->size, (long long)fsopts->inodes); 644} 645 646static void * 647ffs_build_dinode1(struct ufs1_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 648 fsnode *root, fsinfo_t *fsopts) 649{ 650 int slen; 651 void *membuf; 652 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st; 653 654 memset(dinp, 0, sizeof(*dinp)); 655 dinp->di_mode = cur->inode->st.st_mode; 656 dinp->di_nlink = cur->inode->nlink; 657 dinp->di_size = cur->inode->st.st_size; 658#if HAVE_STRUCT_STAT_ST_FLAGS 659 dinp->di_flags = cur->inode->st.st_flags; 660#endif 661#if HAVE_STRUCT_STAT_ST_GEN 662 dinp->di_gen = cur->inode->st.st_gen; 663#endif 664 dinp->di_uid = cur->inode->st.st_uid; 665 dinp->di_gid = cur->inode->st.st_gid; 666 667 dinp->di_atime = st->st_atime; 668 dinp->di_mtime = st->st_mtime; 669 dinp->di_ctime = st->st_ctime; 670#if HAVE_STRUCT_STAT_ST_MTIMENSEC 671 dinp->di_atimensec = st->st_atimensec; 672 dinp->di_mtimensec = st->st_mtimensec; 673 dinp->di_ctimensec = st->st_ctimensec; 674#endif 675 /* not set: di_db, di_ib, di_blocks, di_spare */ 676 677 membuf = NULL; 678 if (cur == root) { /* "."; write dirbuf */ 679 membuf = dbufp->buf; 680 dinp->di_size = dbufp->size; 681 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 682 dinp->di_size = 0; /* a device */ 683 dinp->di_rdev = 684 ufs_rw32(cur->inode->st.st_rdev, fsopts->needswap); 685 } else if (S_ISLNK(cur->type)) { /* symlink */ 686 slen = strlen(cur->symlink); 687 if (slen < MAXSYMLINKLEN_UFS1) { /* short link */ 688 memcpy(dinp->di_db, cur->symlink, slen); 689 } else 690 membuf = cur->symlink; 691 dinp->di_size = slen; 692 } 693 return membuf; 694} 695 696static void * 697ffs_build_dinode2(struct ufs2_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 698 fsnode *root, fsinfo_t *fsopts) 699{ 700 int slen; 701 void *membuf; 702 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st; 703 704 memset(dinp, 0, sizeof(*dinp)); 705 dinp->di_mode = cur->inode->st.st_mode; 706 dinp->di_nlink = cur->inode->nlink; 707 dinp->di_size = cur->inode->st.st_size; 708#if HAVE_STRUCT_STAT_ST_FLAGS 709 dinp->di_flags = cur->inode->st.st_flags; 710#endif 711#if HAVE_STRUCT_STAT_ST_GEN 712 dinp->di_gen = cur->inode->st.st_gen; 713#endif 714 dinp->di_uid = cur->inode->st.st_uid; 715 dinp->di_gid = cur->inode->st.st_gid; 716 717 dinp->di_atime = st->st_atime; 718 dinp->di_mtime = st->st_mtime; 719 dinp->di_ctime = st->st_ctime; 720#if HAVE_STRUCT_STAT_ST_MTIMENSEC 721 dinp->di_atimensec = st->st_atimensec; 722 dinp->di_mtimensec = st->st_mtimensec; 723 dinp->di_ctimensec = st->st_ctimensec; 724#endif 725#if HAVE_STRUCT_STAT_BIRTHTIME 726 dinp->di_birthtime = st->st_birthtime; 727 dinp->di_birthnsec = st->st_birthtimensec; 728#endif 729 /* not set: di_db, di_ib, di_blocks, di_spare */ 730 731 membuf = NULL; 732 if (cur == root) { /* "."; write dirbuf */ 733 membuf = dbufp->buf; 734 dinp->di_size = dbufp->size; 735 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 736 dinp->di_size = 0; /* a device */ 737 dinp->di_rdev = 738 ufs_rw64(cur->inode->st.st_rdev, fsopts->needswap); 739 } else if (S_ISLNK(cur->type)) { /* symlink */ 740 slen = strlen(cur->symlink); 741 if (slen < MAXSYMLINKLEN_UFS2) { /* short link */ 742 memcpy(dinp->di_db, cur->symlink, slen); 743 } else 744 membuf = cur->symlink; 745 dinp->di_size = slen; 746 } 747 return membuf; 748} 749 750static int 751ffs_populate_dir(const char *dir, fsnode *root, fsinfo_t *fsopts) 752{ 753 fsnode *cur; 754 dirbuf_t dirbuf; 755 union dinode din; 756 void *membuf; 757 char path[MAXPATHLEN + 1]; 758 ffs_opt_t *ffs_opts = fsopts->fs_specific; 759 760 assert(dir != NULL); 761 assert(root != NULL); 762 assert(fsopts != NULL); 763 assert(ffs_opts != NULL); 764 765 (void)memset(&dirbuf, 0, sizeof(dirbuf)); 766 767 if (debug & DEBUG_FS_POPULATE) 768 printf("ffs_populate_dir: PASS 1 dir %s node %p\n", dir, root); 769 770 /* 771 * pass 1: allocate inode numbers, build directory `file' 772 */ 773 for (cur = root; cur != NULL; cur = cur->next) { 774 if ((cur->inode->flags & FI_ALLOCATED) == 0) { 775 cur->inode->flags |= FI_ALLOCATED; 776 if (cur == root && cur->parent != NULL) 777 cur->inode->ino = cur->parent->inode->ino; 778 else { 779 cur->inode->ino = fsopts->curinode; 780 fsopts->curinode++; 781 } 782 } 783 ffs_make_dirbuf(&dirbuf, cur->name, cur, fsopts->needswap); 784 if (cur == root) { /* we're at "."; add ".." */ 785 ffs_make_dirbuf(&dirbuf, "..", 786 cur->parent == NULL ? cur : cur->parent->first, 787 fsopts->needswap); 788 root->inode->nlink++; /* count my parent's link */ 789 } else if (cur->child != NULL) 790 root->inode->nlink++; /* count my child's link */ 791 792 /* 793 * XXX possibly write file and long symlinks here, 794 * ensuring that blocks get written before inodes? 795 * otoh, this isn't a real filesystem, so who 796 * cares about ordering? :-) 797 */ 798 } 799 if (debug & DEBUG_FS_POPULATE_DIRBUF) 800 ffs_dump_dirbuf(&dirbuf, dir, fsopts->needswap); 801 802 /* 803 * pass 2: write out dirbuf, then non-directories at this level 804 */ 805 if (debug & DEBUG_FS_POPULATE) 806 printf("ffs_populate_dir: PASS 2 dir %s\n", dir); 807 for (cur = root; cur != NULL; cur = cur->next) { 808 if (cur->inode->flags & FI_WRITTEN) 809 continue; /* skip hard-linked entries */ 810 cur->inode->flags |= FI_WRITTEN; 811 812 if (cur->contents == NULL) { 813 if (snprintf(path, sizeof(path), "%s/%s/%s", cur->root, 814 cur->path, cur->name) >= (int)sizeof(path)) 815 errx(1, "Pathname too long."); 816 } 817 818 if (cur->child != NULL) 819 continue; /* child creates own inode */ 820 821 /* build on-disk inode */ 822 if (ffs_opts->version == 1) 823 membuf = ffs_build_dinode1(&din.ffs1_din, &dirbuf, cur, 824 root, fsopts); 825 else 826 membuf = ffs_build_dinode2(&din.ffs2_din, &dirbuf, cur, 827 root, fsopts); 828 829 if (debug & DEBUG_FS_POPULATE_NODE) { 830 printf("ffs_populate_dir: writing ino %d, %s", 831 cur->inode->ino, inode_type(cur->type)); 832 if (cur->inode->nlink > 1) 833 printf(", nlink %d", cur->inode->nlink); 834 putchar('\n'); 835 } 836 837 if (membuf != NULL) { 838 ffs_write_file(&din, cur->inode->ino, membuf, fsopts); 839 } else if (S_ISREG(cur->type)) { 840 ffs_write_file(&din, cur->inode->ino, 841 (cur->contents) ? cur->contents : path, fsopts); 842 } else { 843 assert (! S_ISDIR(cur->type)); 844 ffs_write_inode(&din, cur->inode->ino, fsopts); 845 } 846 } 847 848 /* 849 * pass 3: write out sub-directories 850 */ 851 if (debug & DEBUG_FS_POPULATE) 852 printf("ffs_populate_dir: PASS 3 dir %s\n", dir); 853 for (cur = root; cur != NULL; cur = cur->next) { 854 if (cur->child == NULL) 855 continue; 856 if (snprintf(path, sizeof(path), "%s/%s", dir, cur->name) 857 >= sizeof(path)) 858 errx(1, "Pathname too long."); 859 if (! ffs_populate_dir(path, cur->child, fsopts)) 860 return (0); 861 } 862 863 if (debug & DEBUG_FS_POPULATE) 864 printf("ffs_populate_dir: DONE dir %s\n", dir); 865 866 /* cleanup */ 867 if (dirbuf.buf != NULL) 868 free(dirbuf.buf); 869 return (1); 870} 871 872 873static void 874ffs_write_file(union dinode *din, uint32_t ino, void *buf, fsinfo_t *fsopts) 875{ 876 int isfile, ffd; 877 char *fbuf, *p; 878 off_t bufleft, chunk, offset; 879 ssize_t nread; 880 struct inode in; 881 struct buf * bp; 882 ffs_opt_t *ffs_opts = fsopts->fs_specific; 883 884 assert (din != NULL); 885 assert (buf != NULL); 886 assert (fsopts != NULL); 887 assert (ffs_opts != NULL); 888 889 isfile = S_ISREG(DIP(din, mode)); 890 fbuf = NULL; 891 ffd = -1; 892 p = NULL; 893 894 in.i_fs = (struct fs *)fsopts->superblock; 895 896 if (debug & DEBUG_FS_WRITE_FILE) { 897 printf( 898 "ffs_write_file: ino %u, din %p, isfile %d, %s, size %lld", 899 ino, din, isfile, inode_type(DIP(din, mode) & S_IFMT), 900 (long long)DIP(din, size)); 901 if (isfile) 902 printf(", file '%s'\n", (char *)buf); 903 else 904 printf(", buffer %p\n", buf); 905 } 906 907 in.i_number = ino; 908 in.i_size = DIP(din, size); 909 if (ffs_opts->version == 1) 910 memcpy(&in.i_din.ffs1_din, &din->ffs1_din, 911 sizeof(in.i_din.ffs1_din)); 912 else 913 memcpy(&in.i_din.ffs2_din, &din->ffs2_din, 914 sizeof(in.i_din.ffs2_din)); 915 in.i_fd = fsopts->fd; 916 917 if (DIP(din, size) == 0) 918 goto write_inode_and_leave; /* mmm, cheating */ 919 920 if (isfile) { 921 fbuf = emalloc(ffs_opts->bsize); 922 if ((ffd = open((char *)buf, O_RDONLY, 0444)) == -1) { 923 warn("Can't open `%s' for reading", (char *)buf); 924 goto leave_ffs_write_file; 925 } 926 } else { 927 p = buf; 928 } 929 930 chunk = 0; 931 for (bufleft = DIP(din, size); bufleft > 0; bufleft -= chunk) { 932 chunk = MIN(bufleft, ffs_opts->bsize); 933 if (!isfile) 934 ; 935 else if ((nread = read(ffd, fbuf, chunk)) == -1) 936 err(EXIT_FAILURE, "Reading `%s', %lld bytes to go", 937 (char *)buf, (long long)bufleft); 938 else if (nread != chunk) 939 errx(EXIT_FAILURE, "Reading `%s', %lld bytes to go, " 940 "read %zd bytes, expected %ju bytes, does " 941 "metalog size= attribute mismatch source size?", 942 (char *)buf, (long long)bufleft, nread, 943 (uintmax_t)chunk); 944 else 945 p = fbuf; 946 offset = DIP(din, size) - bufleft; 947 if (debug & DEBUG_FS_WRITE_FILE_BLOCK) 948 printf( 949 "ffs_write_file: write %p offset %lld size %lld left %lld\n", 950 p, (long long)offset, 951 (long long)chunk, (long long)bufleft); 952 /* 953 * XXX if holey support is desired, do the check here 954 * 955 * XXX might need to write out last bit in fragroundup 956 * sized chunk. however, ffs_balloc() handles this for us 957 */ 958 errno = ffs_balloc(&in, offset, chunk, &bp); 959 bad_ffs_write_file: 960 if (errno != 0) 961 err(1, 962 "Writing inode %d (%s), bytes %lld + %lld", 963 ino, 964 isfile ? (char *)buf : 965 inode_type(DIP(din, mode) & S_IFMT), 966 (long long)offset, (long long)chunk); 967 memcpy(bp->b_data, p, chunk); 968 errno = bwrite(bp); 969 if (errno != 0) 970 goto bad_ffs_write_file; 971 brelse(bp, 0); 972 if (!isfile) 973 p += chunk; 974 } 975 976 write_inode_and_leave: 977 ffs_write_inode(&in.i_din, in.i_number, fsopts); 978 979 leave_ffs_write_file: 980 if (fbuf) 981 free(fbuf); 982 if (ffd != -1) 983 close(ffd); 984} 985 986 987static void 988ffs_dump_dirbuf(dirbuf_t *dbuf, const char *dir, int needswap) 989{ 990 doff_t i; 991 struct direct *de; 992 uint16_t reclen; 993 994 assert (dbuf != NULL); 995 assert (dir != NULL); 996 printf("ffs_dump_dirbuf: dir %s size %d cur %d\n", 997 dir, dbuf->size, dbuf->cur); 998 999 for (i = 0; i < dbuf->size; ) { 1000 de = (struct direct *)(dbuf->buf + i); 1001 reclen = ufs_rw16(de->d_reclen, needswap); 1002 printf( 1003 " inode %4d %7s offset %4d reclen %3d namlen %3d name %s\n", 1004 ufs_rw32(de->d_ino, needswap), 1005 inode_type(DTTOIF(de->d_type)), i, reclen, 1006 de->d_namlen, de->d_name); 1007 i += reclen; 1008 assert(reclen > 0); 1009 } 1010} 1011 1012static void 1013ffs_make_dirbuf(dirbuf_t *dbuf, const char *name, fsnode *node, int needswap) 1014{ 1015 struct direct de, *dp; 1016 uint16_t llen, reclen; 1017 u_char *newbuf; 1018 1019 assert (dbuf != NULL); 1020 assert (name != NULL); 1021 assert (node != NULL); 1022 /* create direct entry */ 1023 (void)memset(&de, 0, sizeof(de)); 1024 de.d_ino = ufs_rw32(node->inode->ino, needswap); 1025 de.d_type = IFTODT(node->type); 1026 de.d_namlen = (uint8_t)strlen(name); 1027 strcpy(de.d_name, name); 1028 reclen = DIRSIZ_SWAP(0, &de, needswap); 1029 de.d_reclen = ufs_rw16(reclen, needswap); 1030 1031 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1032 llen = 0; 1033 if (dp != NULL) 1034 llen = DIRSIZ_SWAP(0, dp, needswap); 1035 1036 if (debug & DEBUG_FS_MAKE_DIRBUF) 1037 printf( 1038 "ffs_make_dirbuf: dbuf siz %d cur %d lastlen %d\n" 1039 " ino %d type %d reclen %d namlen %d name %.30s\n", 1040 dbuf->size, dbuf->cur, llen, 1041 ufs_rw32(de.d_ino, needswap), de.d_type, reclen, 1042 de.d_namlen, de.d_name); 1043 1044 if (reclen + dbuf->cur + llen > roundup(dbuf->size, DIRBLKSIZ)) { 1045 if (debug & DEBUG_FS_MAKE_DIRBUF) 1046 printf("ffs_make_dirbuf: growing buf to %d\n", 1047 dbuf->size + DIRBLKSIZ); 1048 newbuf = erealloc(dbuf->buf, dbuf->size + DIRBLKSIZ); 1049 dbuf->buf = newbuf; 1050 dbuf->size += DIRBLKSIZ; 1051 memset(dbuf->buf + dbuf->size - DIRBLKSIZ, 0, DIRBLKSIZ); 1052 dbuf->cur = dbuf->size - DIRBLKSIZ; 1053 } else if (dp) { /* shrink end of previous */ 1054 dp->d_reclen = ufs_rw16(llen,needswap); 1055 dbuf->cur += llen; 1056 } 1057 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1058 memcpy(dp, &de, reclen); 1059 dp->d_reclen = ufs_rw16(dbuf->size - dbuf->cur, needswap); 1060} 1061 1062/* 1063 * cribbed from sys/ufs/ffs/ffs_alloc.c 1064 */ 1065static void 1066ffs_write_inode(union dinode *dp, uint32_t ino, const fsinfo_t *fsopts) 1067{ 1068 char *buf; 1069 struct ufs1_dinode *dp1; 1070 struct ufs2_dinode *dp2, *dip; 1071 struct cg *cgp; 1072 struct fs *fs; 1073 int cg, cgino, i; 1074 daddr_t d; 1075 char sbbuf[FFS_MAXBSIZE]; 1076 int32_t initediblk; 1077 ffs_opt_t *ffs_opts = fsopts->fs_specific; 1078 1079 assert (dp != NULL); 1080 assert (ino > 0); 1081 assert (fsopts != NULL); 1082 assert (ffs_opts != NULL); 1083 1084 fs = (struct fs *)fsopts->superblock; 1085 cg = ino_to_cg(fs, ino); 1086 cgino = ino % fs->fs_ipg; 1087 if (debug & DEBUG_FS_WRITE_INODE) 1088 printf("ffs_write_inode: din %p ino %u cg %d cgino %d\n", 1089 dp, ino, cg, cgino); 1090 1091 ffs_rdfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1092 fsopts); 1093 cgp = (struct cg *)sbbuf; 1094 if (!cg_chkmagic_swap(cgp, fsopts->needswap)) 1095 errx(1, "ffs_write_inode: cg %d: bad magic number", cg); 1096 1097 assert (isclr(cg_inosused_swap(cgp, fsopts->needswap), cgino)); 1098 1099 buf = emalloc(fs->fs_bsize); 1100 dp1 = (struct ufs1_dinode *)buf; 1101 dp2 = (struct ufs2_dinode *)buf; 1102 1103 if (fs->fs_cstotal.cs_nifree == 0) 1104 errx(1, "ffs_write_inode: fs out of inodes for ino %u", 1105 ino); 1106 if (fs->fs_cs(fs, cg).cs_nifree == 0) 1107 errx(1, 1108 "ffs_write_inode: cg %d out of inodes for ino %u", 1109 cg, ino); 1110 setbit(cg_inosused_swap(cgp, fsopts->needswap), cgino); 1111 ufs_add32(cgp->cg_cs.cs_nifree, -1, fsopts->needswap); 1112 fs->fs_cstotal.cs_nifree--; 1113 fs->fs_cs(fs, cg).cs_nifree--; 1114 if (S_ISDIR(DIP(dp, mode))) { 1115 ufs_add32(cgp->cg_cs.cs_ndir, 1, fsopts->needswap); 1116 fs->fs_cstotal.cs_ndir++; 1117 fs->fs_cs(fs, cg).cs_ndir++; 1118 } 1119 1120 /* 1121 * Initialize inode blocks on the fly for UFS2. 1122 */ 1123 initediblk = ufs_rw32(cgp->cg_initediblk, fsopts->needswap); 1124 while (ffs_opts->version == 2 && cgino + INOPB(fs) > initediblk && 1125 initediblk < ufs_rw32(cgp->cg_niblk, fsopts->needswap)) { 1126 memset(buf, 0, fs->fs_bsize); 1127 dip = (struct ufs2_dinode *)buf; 1128 for (i = 0; i < INOPB(fs); i++) { 1129 dip->di_gen = random(); 1130 dip++; 1131 } 1132 ffs_wtfs(fsbtodb(fs, ino_to_fsba(fs, 1133 cg * fs->fs_ipg + initediblk)), 1134 fs->fs_bsize, buf, fsopts); 1135 initediblk += INOPB(fs); 1136 cgp->cg_initediblk = ufs_rw32(initediblk, fsopts->needswap); 1137 } 1138 1139 1140 ffs_wtfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1141 fsopts); 1142 1143 /* now write inode */ 1144 d = fsbtodb(fs, ino_to_fsba(fs, ino)); 1145 ffs_rdfs(d, fs->fs_bsize, buf, fsopts); 1146 if (fsopts->needswap) { 1147 if (ffs_opts->version == 1) 1148 ffs_dinode1_swap(&dp->ffs1_din, 1149 &dp1[ino_to_fsbo(fs, ino)]); 1150 else 1151 ffs_dinode2_swap(&dp->ffs2_din, 1152 &dp2[ino_to_fsbo(fs, ino)]); 1153 } else { 1154 if (ffs_opts->version == 1) 1155 dp1[ino_to_fsbo(fs, ino)] = dp->ffs1_din; 1156 else 1157 dp2[ino_to_fsbo(fs, ino)] = dp->ffs2_din; 1158 } 1159 ffs_wtfs(d, fs->fs_bsize, buf, fsopts); 1160 free(buf); 1161} 1162 1163void 1164panic(const char *fmt, ...) 1165{ 1166 va_list ap; 1167 1168 va_start(ap, fmt); 1169 vwarnx(fmt, ap); 1170 va_end(ap); 1171 exit(1); 1172} 1173