1 /* $NetBSD: ffs.c,v 1.45 2011/10/09 22:49:26 christos Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-4-Clause 5 * 6 * Copyright (c) 2001 Wasabi Systems, Inc. 7 * All rights reserved. 8 * 9 * Written by Luke Mewburn for Wasabi Systems, Inc. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed for the NetBSD Project by 22 * Wasabi Systems, Inc. 23 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 24 * or promote products derived from this software without specific prior 25 * written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 /* 40 * Copyright (c) 1982, 1986, 1989, 1993 41 * The Regents of the University of California. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. Neither the name of the University nor the names of its contributors 52 * may be used to endorse or promote products derived from this software 53 * without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 56 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 57 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 58 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 59 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 60 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 61 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 62 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 63 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 64 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 65 * SUCH DAMAGE. 66 * 67 * @(#)ffs_alloc.c 8.19 (Berkeley) 7/13/95 68 * $FreeBSD: head/usr.sbin/makefs/ffs.c 336736 2018-07-26 13:33:10Z emaste $ 69 */ 70 71 #if HAVE_NBTOOL_CONFIG_H 72 #include "nbtool_config.h" 73 #endif 74 75 #include <sys/param.h> 76 77 #include <sys/mount.h> 78 79 #include <assert.h> 80 #include <errno.h> 81 #include <fcntl.h> 82 #include <stdarg.h> 83 #include <stdint.h> 84 #include <stdio.h> 85 #include <stdlib.h> 86 #include <string.h> 87 #include <time.h> 88 #include <unistd.h> 89 #include <util.h> 90 91 #include "makefs.h" 92 #include "ffs.h" 93 94 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 95 #include <sys/statvfs.h> 96 #endif 97 98 #include <vfs/ufs/dinode.h> 99 #include <vfs/ufs/dir.h> 100 #include <vfs/ufs/fs.h> 101 102 103 #include "ffs/ufs_bswap.h" 104 #include "ffs/ufs_inode.h" 105 #include "ffs/newfs_extern.h" 106 #include "ffs/ffs_extern.h" 107 108 #undef DIP 109 #if 0 /* XXX UFS2 */ 110 #define DIP(dp, field) \ 111 ((ffs_opts->version == 1) ? \ 112 (dp)->ffs1_din.di_##field : (dp)->ffs2_din.di_##field) 113 #else 114 #define DIP(dp, field) (dp)->ffs1_din.di_##field 115 #endif 116 117 /* 118 * Various file system defaults (cribbed from newfs(8)). 119 */ 120 #ifdef __DragonFly__ 121 #define DFL_FRAGSIZE 2048 /* fragment size */ 122 #define DFL_BLKSIZE 16384 /* block size */ 123 #else 124 #define DFL_FRAGSIZE 4096 /* fragment size */ 125 #define DFL_BLKSIZE 32768 /* block size */ 126 #endif 127 #define DFL_SECSIZE 512 /* sector size */ 128 #define DFL_CYLSPERGROUP 65536 /* cylinders per group */ 129 #define DFL_FRAGSPERINODE 4 /* fragments per inode */ 130 #define DFL_ROTDELAY 0 /* rotational delay */ 131 #define DFL_NRPOS 1 /* rotational positions */ 132 #define DFL_RPM 3600 /* rpm of disk */ 133 #define DFL_NSECTORS 64 /* # of sectors */ 134 #define DFL_NTRACKS 16 /* # of tracks */ 135 136 137 typedef struct { 138 u_char *buf; /* buf for directory */ 139 doff_t size; /* full size of buf */ 140 doff_t cur; /* offset of current entry */ 141 } dirbuf_t; 142 143 144 static int ffs_create_image(const char *, fsinfo_t *); 145 static void ffs_dump_fsinfo(fsinfo_t *); 146 static void ffs_dump_dirbuf(dirbuf_t *, const char *, int); 147 static void ffs_make_dirbuf(dirbuf_t *, const char *, fsnode *, int); 148 static int ffs_populate_dir(const char *, fsnode *, fsinfo_t *); 149 static void ffs_size_dir(fsnode *, fsinfo_t *); 150 static void ffs_validate(const char *, fsnode *, fsinfo_t *); 151 static void ffs_write_file(union dinode *, uint32_t, void *, fsinfo_t *); 152 static void ffs_write_inode(union dinode *, uint32_t, const fsinfo_t *); 153 static void *ffs_build_dinode1(struct ufs1_dinode *, dirbuf_t *, fsnode *, 154 fsnode *, fsinfo_t *); 155 #if 0 /* XXX UFS2 */ 156 static void *ffs_build_dinode2(struct ufs2_dinode *, dirbuf_t *, fsnode *, 157 fsnode *, fsinfo_t *); 158 #endif 159 160 161 /* publicly visible functions */ 162 163 void 164 ffs_prep_opts(fsinfo_t *fsopts) 165 { 166 ffs_opt_t *ffs_opts = ecalloc(1, sizeof(*ffs_opts)); 167 168 const option_t ffs_options[] = { 169 { 'b', "bsize", &ffs_opts->bsize, OPT_INT32, 170 1, INT_MAX, "block size" }, 171 { 'f', "fsize", &ffs_opts->fsize, OPT_INT32, 172 1, INT_MAX, "fragment size" }, 173 { 'd', "density", &ffs_opts->density, OPT_INT32, 174 1, INT_MAX, "bytes per inode" }, 175 { 'm', "minfree", &ffs_opts->minfree, OPT_INT32, 176 0, 99, "minfree" }, 177 { 'M', "maxbpg", &ffs_opts->maxbpg, OPT_INT32, 178 1, INT_MAX, "max blocks per file in a cg" }, 179 { 'a', "avgfilesize", &ffs_opts->avgfilesize, OPT_INT32, 180 1, INT_MAX, "expected average file size" }, 181 { 'n', "avgfpdir", &ffs_opts->avgfpdir, OPT_INT32, 182 1, INT_MAX, "expected # of files per directory" }, 183 #ifndef __DragonFly__ 184 { 'x', "extent", &ffs_opts->maxbsize, OPT_INT32, 185 1, INT_MAX, "maximum # extent size" }, 186 #endif 187 { 'g', "maxbpcg", &ffs_opts->maxblkspercg, OPT_INT32, 188 1, INT_MAX, "max # of blocks per group" }, 189 { 'v', "version", &ffs_opts->version, OPT_INT32, 190 #ifndef __DragonFly__ 191 1, 2, "UFS version" }, 192 #else 193 1, 1, "UFS version" }, 194 #endif 195 { 'o', "optimization", NULL, OPT_STRBUF, 196 0, 0, "Optimization (time|space)" }, 197 { 'l', "label", ffs_opts->label, OPT_STRARRAY, 198 1, sizeof(ffs_opts->label), "UFS label" }, 199 { 's', "softupdates", &ffs_opts->softupdates, OPT_INT32, 200 0, 1, "enable softupdates" }, 201 { .name = NULL } 202 }; 203 204 ffs_opts->bsize= -1; 205 ffs_opts->fsize= -1; 206 ffs_opts->cpg= -1; 207 ffs_opts->density= -1; 208 ffs_opts->min_inodes= false; 209 ffs_opts->minfree= -1; 210 ffs_opts->optimization= -1; 211 ffs_opts->maxcontig= -1; 212 ffs_opts->maxbpg= -1; 213 ffs_opts->avgfilesize= -1; 214 ffs_opts->avgfpdir= -1; 215 ffs_opts->version = 1; 216 ffs_opts->softupdates = 0; 217 218 fsopts->fs_specific = ffs_opts; 219 fsopts->fs_options = copy_opts(ffs_options); 220 } 221 222 void 223 ffs_cleanup_opts(fsinfo_t *fsopts) 224 { 225 free(fsopts->fs_specific); 226 free(fsopts->fs_options); 227 } 228 229 int 230 ffs_parse_opts(const char *option, fsinfo_t *fsopts) 231 { 232 ffs_opt_t *ffs_opts = fsopts->fs_specific; 233 option_t *ffs_options = fsopts->fs_options; 234 char buf[1024]; 235 236 int rv; 237 238 assert(option != NULL); 239 assert(fsopts != NULL); 240 assert(ffs_opts != NULL); 241 242 if (debug & DEBUG_FS_PARSE_OPTS) 243 printf("ffs_parse_opts: got `%s'\n", option); 244 245 rv = set_option(ffs_options, option, buf, sizeof(buf)); 246 if (rv == -1) 247 return 0; 248 249 if (ffs_options[rv].name == NULL) 250 abort(); 251 252 switch (ffs_options[rv].letter) { 253 case 'o': 254 if (strcmp(buf, "time") == 0) { 255 ffs_opts->optimization = FS_OPTTIME; 256 } else if (strcmp(buf, "space") == 0) { 257 ffs_opts->optimization = FS_OPTSPACE; 258 } else { 259 warnx("Invalid optimization `%s'", buf); 260 return 0; 261 } 262 break; 263 default: 264 break; 265 } 266 return 1; 267 } 268 269 270 void 271 ffs_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts) 272 { 273 struct fs *superblock; 274 struct timeval start; 275 276 assert(image != NULL); 277 assert(dir != NULL); 278 assert(root != NULL); 279 assert(fsopts != NULL); 280 281 if (debug & DEBUG_FS_MAKEFS) 282 printf("ffs_makefs: image %s directory %s root %p\n", 283 image, dir, root); 284 285 /* if user wants no free space, use minimum number of inodes */ 286 if (fsopts->minsize == 0 && fsopts->freeblockpc == 0 && 287 fsopts->freeblocks == 0) 288 ((ffs_opt_t *)fsopts->fs_specific)->min_inodes = true; 289 290 /* validate tree and options */ 291 TIMER_START(start); 292 ffs_validate(dir, root, fsopts); 293 TIMER_RESULTS(start, "ffs_validate"); 294 295 printf("Calculated size of `%s': %lld bytes, %lld inodes\n", 296 image, (long long)fsopts->size, (long long)fsopts->inodes); 297 298 /* create image */ 299 TIMER_START(start); 300 if (ffs_create_image(image, fsopts) == -1) 301 errx(1, "Image file `%s' not created.", image); 302 TIMER_RESULTS(start, "ffs_create_image"); 303 304 fsopts->curinode = UFS_ROOTINO; 305 306 if (debug & DEBUG_FS_MAKEFS) 307 putchar('\n'); 308 309 /* populate image */ 310 printf("Populating `%s'\n", image); 311 TIMER_START(start); 312 if (! ffs_populate_dir(dir, root, fsopts)) 313 errx(1, "Image file `%s' not populated.", image); 314 TIMER_RESULTS(start, "ffs_populate_dir"); 315 316 /* ensure no outstanding buffers remain */ 317 if (debug & DEBUG_FS_MAKEFS) 318 bcleanup(); 319 320 /* update various superblock parameters */ 321 superblock = fsopts->superblock; 322 superblock->fs_fmod = 0; 323 #ifndef __DragonFly__ 324 superblock->fs_old_cstotal.cs_ndir = superblock->fs_cstotal.cs_ndir; 325 superblock->fs_old_cstotal.cs_nbfree = superblock->fs_cstotal.cs_nbfree; 326 superblock->fs_old_cstotal.cs_nifree = superblock->fs_cstotal.cs_nifree; 327 superblock->fs_old_cstotal.cs_nffree = superblock->fs_cstotal.cs_nffree; 328 #endif 329 330 /* write out superblock; image is now complete */ 331 ffs_write_superblock(fsopts->superblock, fsopts); 332 if (close(fsopts->fd) == -1) 333 err(1, "Closing `%s'", image); 334 fsopts->fd = -1; 335 printf("Image `%s' complete\n", image); 336 } 337 338 /* end of public functions */ 339 340 341 static void 342 ffs_validate(const char *dir, fsnode *root, fsinfo_t *fsopts) 343 { 344 #ifdef notyet 345 int32_t spc, nspf, ncyl, fssize; 346 #endif 347 ffs_opt_t *ffs_opts = fsopts->fs_specific; 348 349 assert(dir != NULL); 350 assert(root != NULL); 351 assert(fsopts != NULL); 352 assert(ffs_opts != NULL); 353 354 if (debug & DEBUG_FS_VALIDATE) { 355 printf("ffs_validate: before defaults set:\n"); 356 ffs_dump_fsinfo(fsopts); 357 } 358 359 /* set FFS defaults */ 360 if (fsopts->sectorsize == -1) 361 fsopts->sectorsize = DFL_SECSIZE; 362 if (ffs_opts->fsize == -1) 363 ffs_opts->fsize = MAX(DFL_FRAGSIZE, fsopts->sectorsize); 364 if (ffs_opts->bsize == -1) 365 ffs_opts->bsize = MIN(DFL_BLKSIZE, 8 * ffs_opts->fsize); 366 if (ffs_opts->cpg == -1) 367 ffs_opts->cpg = DFL_CYLSPERGROUP; 368 else 369 ffs_opts->cpgflg = 1; 370 /* fsopts->density is set below */ 371 if (ffs_opts->nsectors == -1) 372 ffs_opts->nsectors = DFL_NSECTORS; 373 if (ffs_opts->minfree == -1) 374 ffs_opts->minfree = MINFREE; 375 if (ffs_opts->optimization == -1) 376 ffs_opts->optimization = DEFAULTOPT; 377 if (ffs_opts->maxcontig == -1) 378 ffs_opts->maxcontig = 379 MAX(1, MIN(MAXPHYS, FFS_MAXBSIZE) / ffs_opts->bsize); 380 /* XXX ondisk32 */ 381 if (ffs_opts->maxbpg == -1) 382 ffs_opts->maxbpg = ffs_opts->bsize / sizeof(int32_t); 383 if (ffs_opts->avgfilesize == -1) 384 ffs_opts->avgfilesize = AVFILESIZ; 385 if (ffs_opts->avgfpdir == -1) 386 ffs_opts->avgfpdir = AFPDIR; 387 388 if (fsopts->maxsize > 0 && 389 roundup(fsopts->minsize, ffs_opts->bsize) > fsopts->maxsize) 390 errx(1, "`%s' minsize of %lld rounded up to ffs bsize of %d " 391 "exceeds maxsize %lld. Lower bsize, or round the minimum " 392 "and maximum sizes to bsize.", dir, 393 (long long)fsopts->minsize, ffs_opts->bsize, 394 (long long)fsopts->maxsize); 395 396 /* calculate size of tree */ 397 ffs_size_dir(root, fsopts); 398 fsopts->inodes += UFS_ROOTINO; /* include first two inodes */ 399 400 if (debug & DEBUG_FS_VALIDATE) 401 printf("ffs_validate: size of tree: %lld bytes, %lld inodes\n", 402 (long long)fsopts->size, (long long)fsopts->inodes); 403 404 /* add requested slop */ 405 fsopts->size += fsopts->freeblocks; 406 fsopts->inodes += fsopts->freefiles; 407 if (fsopts->freefilepc > 0) 408 fsopts->inodes = 409 fsopts->inodes * (100 + fsopts->freefilepc) / 100; 410 if (fsopts->freeblockpc > 0) 411 fsopts->size = 412 fsopts->size * (100 + fsopts->freeblockpc) / 100; 413 414 /* 415 * Add space needed for superblock, cylblock and to store inodes. 416 * All of those segments are aligned to the block size. 417 * XXX: This has to match calculations done in ffs_mkfs. 418 */ 419 if (ffs_opts->version == 1) { 420 fsopts->size += 421 roundup(SBLOCK_UFS1 + SBLOCKSIZE, ffs_opts->bsize); 422 fsopts->size += roundup(SBLOCKSIZE, ffs_opts->bsize); 423 fsopts->size += ffs_opts->bsize; 424 fsopts->size += DINODE1_SIZE * 425 roundup(fsopts->inodes, ffs_opts->bsize / DINODE1_SIZE); 426 } else { 427 #ifndef __DragonFly__ /* XXX UFS2 */ 428 fsopts->size += 429 roundup(SBLOCK_UFS2 + SBLOCKSIZE, ffs_opts->bsize); 430 fsopts->size += roundup(SBLOCKSIZE, ffs_opts->bsize); 431 fsopts->size += ffs_opts->bsize; 432 fsopts->size += DINODE2_SIZE * 433 roundup(fsopts->inodes, ffs_opts->bsize / DINODE2_SIZE); 434 #endif 435 } 436 437 /* add minfree */ 438 if (ffs_opts->minfree > 0) 439 fsopts->size = 440 fsopts->size * (100 + ffs_opts->minfree) / 100; 441 /* 442 * XXX any other fs slop to add, such as csum's, bitmaps, etc ?? 443 */ 444 445 if (fsopts->size < fsopts->minsize) /* ensure meets minimum size */ 446 fsopts->size = fsopts->minsize; 447 448 /* round up to the next block */ 449 fsopts->size = roundup(fsopts->size, ffs_opts->bsize); 450 451 /* round up to requested block size, if any */ 452 if (fsopts->roundup > 0) 453 fsopts->size = roundup(fsopts->size, fsopts->roundup); 454 455 /* calculate density to just fit inodes if no free space */ 456 if (ffs_opts->density == -1) 457 ffs_opts->density = fsopts->size / fsopts->inodes + 1; 458 459 if (debug & DEBUG_FS_VALIDATE) { 460 printf("ffs_validate: after defaults set:\n"); 461 ffs_dump_fsinfo(fsopts); 462 printf("ffs_validate: dir %s; %lld bytes, %lld inodes\n", 463 dir, (long long)fsopts->size, (long long)fsopts->inodes); 464 } 465 /* now check calculated sizes vs requested sizes */ 466 if (fsopts->maxsize > 0 && fsopts->size > fsopts->maxsize) { 467 errx(1, "`%s' size of %lld is larger than the maxsize of %lld.", 468 dir, (long long)fsopts->size, (long long)fsopts->maxsize); 469 } 470 } 471 472 473 static void 474 ffs_dump_fsinfo(fsinfo_t *f) 475 { 476 477 ffs_opt_t *fs = f->fs_specific; 478 479 printf("fsopts at %p\n", f); 480 481 printf("\tsize %lld, inodes %lld, curinode %u\n", 482 (long long)f->size, (long long)f->inodes, f->curinode); 483 484 printf("\tminsize %lld, maxsize %lld\n", 485 (long long)f->minsize, (long long)f->maxsize); 486 printf("\tfree files %lld, freefile %% %d\n", 487 (long long)f->freefiles, f->freefilepc); 488 printf("\tfree blocks %lld, freeblock %% %d\n", 489 (long long)f->freeblocks, f->freeblockpc); 490 printf("\tneedswap %d, sectorsize %d\n", f->needswap, f->sectorsize); 491 492 printf("\tbsize %d, fsize %d, cpg %d, density %d\n", 493 fs->bsize, fs->fsize, fs->cpg, fs->density); 494 printf("\tnsectors %d, rpm %d, minfree %d\n", 495 fs->nsectors, fs->rpm, fs->minfree); 496 printf("\tmaxcontig %d, maxbpg %d\n", 497 fs->maxcontig, fs->maxbpg); 498 printf("\toptimization %s\n", 499 fs->optimization == FS_OPTSPACE ? "space" : "time"); 500 } 501 502 503 static int 504 ffs_create_image(const char *image, fsinfo_t *fsopts) 505 { 506 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 507 struct statvfs sfs; 508 #endif 509 struct fs *fs; 510 char *buf; 511 int i, bufsize; 512 off_t bufrem; 513 int oflags = O_RDWR | O_CREAT; 514 time_t tstamp; 515 516 assert (image != NULL); 517 assert (fsopts != NULL); 518 519 /* create image */ 520 if (fsopts->offset == 0) 521 oflags |= O_TRUNC; 522 if ((fsopts->fd = open(image, oflags, 0666)) == -1) { 523 warn("Can't open `%s' for writing", image); 524 return (-1); 525 } 526 527 /* zero image */ 528 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 529 if (fstatvfs(fsopts->fd, &sfs) == -1) { 530 #endif 531 bufsize = 8192; 532 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS 533 warn("can't fstatvfs `%s', using default %d byte chunk", 534 image, bufsize); 535 } else 536 bufsize = sfs.f_iosize; 537 #endif 538 bufrem = fsopts->size; 539 if (fsopts->sparse) { 540 if (ftruncate(fsopts->fd, bufrem) == -1) { 541 warn("sparse option disabled."); 542 fsopts->sparse = 0; 543 } 544 } 545 if (fsopts->sparse) { 546 /* File truncated at bufrem. Remaining is 0 */ 547 bufrem = 0; 548 buf = NULL; 549 } else { 550 if (debug & DEBUG_FS_CREATE_IMAGE) 551 printf("zero-ing image `%s', %lld sectors, " 552 "using %d byte chunks\n", image, (long long)bufrem, 553 bufsize); 554 buf = ecalloc(1, bufsize); 555 } 556 557 if (fsopts->offset != 0) 558 if (lseek(fsopts->fd, fsopts->offset, SEEK_SET) == -1) { 559 warn("can't seek"); 560 free(buf); 561 return -1; 562 } 563 564 while (bufrem > 0) { 565 i = write(fsopts->fd, buf, MIN(bufsize, bufrem)); 566 if (i == -1) { 567 warn("zeroing image, %lld bytes to go", 568 (long long)bufrem); 569 free(buf); 570 return (-1); 571 } 572 bufrem -= i; 573 } 574 if (buf) 575 free(buf); 576 577 /* make the file system */ 578 if (debug & DEBUG_FS_CREATE_IMAGE) 579 printf("calling mkfs(\"%s\", ...)\n", image); 580 581 if (stampst.st_ino != 0) 582 tstamp = stampst.st_ctime; 583 else 584 tstamp = start_time.tv_sec; 585 586 srandom(tstamp); 587 588 fs = ffs_mkfs(image, fsopts, tstamp); 589 fsopts->superblock = (void *)fs; 590 if (debug & DEBUG_FS_CREATE_IMAGE) { 591 time_t t; 592 593 t = (time_t)((struct fs *)fsopts->superblock)->fs_time; 594 printf("mkfs returned %p; fs_time %s", 595 fsopts->superblock, ctime(&t)); 596 printf("fs totals: nbfree %lld, nffree %lld, nifree %lld, ndir %lld\n", 597 (long long)fs->fs_cstotal.cs_nbfree, 598 (long long)fs->fs_cstotal.cs_nffree, 599 (long long)fs->fs_cstotal.cs_nifree, 600 (long long)fs->fs_cstotal.cs_ndir); 601 } 602 603 if (fs->fs_cstotal.cs_nifree + (off_t)UFS_ROOTINO < fsopts->inodes) { 604 warnx( 605 "Image file `%s' has %lld free inodes; %lld are required.", 606 image, 607 (long long)(fs->fs_cstotal.cs_nifree + UFS_ROOTINO), 608 (long long)fsopts->inodes); 609 return (-1); 610 } 611 return (fsopts->fd); 612 } 613 614 615 static void 616 ffs_size_dir(fsnode *root, fsinfo_t *fsopts) 617 { 618 struct direct tmpdir; 619 fsnode * node; 620 int curdirsize, this; 621 ffs_opt_t *ffs_opts = fsopts->fs_specific; 622 623 /* node may be NULL (empty directory) */ 624 assert(fsopts != NULL); 625 assert(ffs_opts != NULL); 626 627 if (debug & DEBUG_FS_SIZE_DIR) 628 printf("ffs_size_dir: entry: bytes %lld inodes %lld\n", 629 (long long)fsopts->size, (long long)fsopts->inodes); 630 631 #define ADDDIRENT(e) do { \ 632 tmpdir.d_namlen = strlen((e)); \ 633 this = DIRSIZ_SWAP(0, &tmpdir, 0); \ 634 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 635 printf("ADDDIRENT: was: %s (%d) this %d cur %d\n", \ 636 e, tmpdir.d_namlen, this, curdirsize); \ 637 if (this + curdirsize > roundup(curdirsize, DIRBLKSIZ)) \ 638 curdirsize = roundup(curdirsize, DIRBLKSIZ); \ 639 curdirsize += this; \ 640 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 641 printf("ADDDIRENT: now: %s (%d) this %d cur %d\n", \ 642 e, tmpdir.d_namlen, this, curdirsize); \ 643 } while (0); 644 645 #define ADDSIZE(x) do { \ 646 if ((size_t)(x) < UFS_NDADDR * (size_t)ffs_opts->bsize) { \ 647 fsopts->size += roundup((x), ffs_opts->fsize); \ 648 } else { \ 649 /* Count space consumed by indirecttion blocks. */ \ 650 fsopts->size += ffs_opts->bsize * \ 651 (howmany((x), UFS_NDADDR * ffs_opts->bsize) - 1); \ 652 /* \ 653 * If the file is big enough to use indirect blocks, \ 654 * we allocate bsize block for trailing data. \ 655 */ \ 656 fsopts->size += roundup((x), ffs_opts->bsize); \ 657 } \ 658 } while (0); 659 660 curdirsize = 0; 661 for (node = root; node != NULL; node = node->next) { 662 ADDDIRENT(node->name); 663 if (node == root) { /* we're at "." */ 664 assert(strcmp(node->name, ".") == 0); 665 ADDDIRENT(".."); 666 } else if ((node->inode->flags & FI_SIZED) == 0) { 667 /* don't count duplicate names */ 668 node->inode->flags |= FI_SIZED; 669 if (debug & DEBUG_FS_SIZE_DIR_NODE) 670 printf("ffs_size_dir: `%s' size %lld\n", 671 node->name, 672 (long long)node->inode->st.st_size); 673 fsopts->inodes++; 674 if (node->type == S_IFREG) 675 ADDSIZE(node->inode->st.st_size); 676 if (node->type == S_IFLNK) { 677 size_t slen; 678 679 slen = strlen(node->symlink) + 1; 680 #ifndef __DragonFly__ /* XXX UFS2 */ 681 if (slen >= (ffs_opts->version == 1 ? 682 UFS1_MAXSYMLINKLEN : 683 UFS2_MAXSYMLINKLEN)) 684 #else 685 if (slen >= UFS1_MAXSYMLINKLEN) 686 #endif 687 ADDSIZE(slen); 688 } 689 } 690 if (node->type == S_IFDIR) 691 ffs_size_dir(node->child, fsopts); 692 } 693 ADDSIZE(curdirsize); 694 695 if (debug & DEBUG_FS_SIZE_DIR) 696 printf("ffs_size_dir: exit: size %lld inodes %lld\n", 697 (long long)fsopts->size, (long long)fsopts->inodes); 698 } 699 700 static void * 701 ffs_build_dinode1(struct ufs1_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 702 fsnode *root, fsinfo_t *fsopts) 703 { 704 size_t slen; 705 void *membuf; 706 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st; 707 708 memset(dinp, 0, sizeof(*dinp)); 709 dinp->di_mode = cur->inode->st.st_mode; 710 dinp->di_nlink = cur->inode->nlink; 711 dinp->di_size = cur->inode->st.st_size; 712 #if HAVE_STRUCT_STAT_ST_FLAGS 713 dinp->di_flags = cur->inode->st.st_flags; 714 #endif 715 dinp->di_gen = random(); 716 dinp->di_uid = cur->inode->st.st_uid; 717 dinp->di_gid = cur->inode->st.st_gid; 718 719 dinp->di_atime = st->st_atime; 720 dinp->di_mtime = st->st_mtime; 721 dinp->di_ctime = st->st_ctime; 722 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 723 dinp->di_atimensec = st->st_atimensec; 724 dinp->di_mtimensec = st->st_mtimensec; 725 dinp->di_ctimensec = st->st_ctimensec; 726 #endif 727 /* not set: di_db, di_ib, di_blocks, di_spare */ 728 729 membuf = NULL; 730 if (cur == root) { /* "."; write dirbuf */ 731 membuf = dbufp->buf; 732 dinp->di_size = dbufp->size; 733 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 734 dinp->di_size = 0; /* a device */ 735 dinp->di_rdev = 736 ufs_rw32(cur->inode->st.st_rdev, fsopts->needswap); 737 } else if (S_ISLNK(cur->type)) { /* symlink */ 738 slen = strlen(cur->symlink); 739 if (slen < UFS1_MAXSYMLINKLEN) { /* short link */ 740 memcpy(dinp->di_db, cur->symlink, slen); 741 } else 742 membuf = cur->symlink; 743 dinp->di_size = slen; 744 } 745 return membuf; 746 } 747 748 #ifndef __DragonFly__ /* XXX UFS2 */ 749 static void * 750 ffs_build_dinode2(struct ufs2_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 751 fsnode *root, fsinfo_t *fsopts) 752 { 753 size_t slen; 754 void *membuf; 755 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st; 756 757 memset(dinp, 0, sizeof(*dinp)); 758 dinp->di_mode = cur->inode->st.st_mode; 759 dinp->di_nlink = cur->inode->nlink; 760 dinp->di_size = cur->inode->st.st_size; 761 #if HAVE_STRUCT_STAT_ST_FLAGS 762 dinp->di_flags = cur->inode->st.st_flags; 763 #endif 764 dinp->di_gen = random(); 765 dinp->di_uid = cur->inode->st.st_uid; 766 dinp->di_gid = cur->inode->st.st_gid; 767 768 dinp->di_atime = st->st_atime; 769 dinp->di_mtime = st->st_mtime; 770 dinp->di_ctime = st->st_ctime; 771 #if HAVE_STRUCT_STAT_BIRTHTIME 772 dinp->di_birthtime = st->st_birthtime; 773 #else 774 dinp->di_birthtime = st->st_ctime; 775 #endif 776 #if HAVE_STRUCT_STAT_ST_MTIMENSEC 777 dinp->di_atimensec = st->st_atimensec; 778 dinp->di_mtimensec = st->st_mtimensec; 779 dinp->di_ctimensec = st->st_ctimensec; 780 #if HAVE_STRUCT_STAT_BIRTHTIME 781 dinp->di_birthnsec = st->st_birthtimensec; 782 #else 783 dinp->di_birthnsec = st->st_ctimensec; 784 #endif 785 #endif 786 787 /* not set: di_db, di_ib, di_blocks, di_spare */ 788 789 membuf = NULL; 790 if (cur == root) { /* "."; write dirbuf */ 791 membuf = dbufp->buf; 792 dinp->di_size = dbufp->size; 793 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 794 dinp->di_size = 0; /* a device */ 795 dinp->di_rdev = 796 ufs_rw64(cur->inode->st.st_rdev, fsopts->needswap); 797 } else if (S_ISLNK(cur->type)) { /* symlink */ 798 slen = strlen(cur->symlink); 799 if (slen < UFS2_MAXSYMLINKLEN) { /* short link */ 800 memcpy(dinp->di_db, cur->symlink, slen); 801 } else 802 membuf = cur->symlink; 803 dinp->di_size = slen; 804 } 805 return membuf; 806 } 807 #endif 808 809 static int 810 ffs_populate_dir(const char *dir, fsnode *root, fsinfo_t *fsopts) 811 { 812 fsnode *cur; 813 dirbuf_t dirbuf; 814 union dinode din; 815 void *membuf; 816 char path[MAXPATHLEN + 1]; 817 ffs_opt_t *ffs_opts = fsopts->fs_specific; 818 819 assert(dir != NULL); 820 assert(root != NULL); 821 assert(fsopts != NULL); 822 assert(ffs_opts != NULL); 823 824 (void)memset(&dirbuf, 0, sizeof(dirbuf)); 825 826 if (debug & DEBUG_FS_POPULATE) 827 printf("ffs_populate_dir: PASS 1 dir %s node %p\n", dir, root); 828 829 /* 830 * pass 1: allocate inode numbers, build directory `file' 831 */ 832 for (cur = root; cur != NULL; cur = cur->next) { 833 if ((cur->inode->flags & FI_ALLOCATED) == 0) { 834 cur->inode->flags |= FI_ALLOCATED; 835 if (cur == root && cur->parent != NULL) 836 cur->inode->ino = cur->parent->inode->ino; 837 else { 838 cur->inode->ino = fsopts->curinode; 839 fsopts->curinode++; 840 } 841 } 842 ffs_make_dirbuf(&dirbuf, cur->name, cur, fsopts->needswap); 843 if (cur == root) { /* we're at "."; add ".." */ 844 ffs_make_dirbuf(&dirbuf, "..", 845 cur->parent == NULL ? cur : cur->parent->first, 846 fsopts->needswap); 847 root->inode->nlink++; /* count my parent's link */ 848 } else if (cur->child != NULL) 849 root->inode->nlink++; /* count my child's link */ 850 851 /* 852 * XXX possibly write file and long symlinks here, 853 * ensuring that blocks get written before inodes? 854 * otoh, this isn't a real filesystem, so who 855 * cares about ordering? :-) 856 */ 857 } 858 if (debug & DEBUG_FS_POPULATE_DIRBUF) 859 ffs_dump_dirbuf(&dirbuf, dir, fsopts->needswap); 860 861 /* 862 * pass 2: write out dirbuf, then non-directories at this level 863 */ 864 if (debug & DEBUG_FS_POPULATE) 865 printf("ffs_populate_dir: PASS 2 dir %s\n", dir); 866 for (cur = root; cur != NULL; cur = cur->next) { 867 if (cur->inode->flags & FI_WRITTEN) 868 continue; /* skip hard-linked entries */ 869 cur->inode->flags |= FI_WRITTEN; 870 871 if (cur->contents == NULL) { 872 if (snprintf(path, sizeof(path), "%s/%s/%s", cur->root, 873 cur->path, cur->name) >= (int)sizeof(path)) 874 errx(1, "Pathname too long."); 875 } 876 877 if (cur->child != NULL) 878 continue; /* child creates own inode */ 879 880 /* build on-disk inode */ 881 if (ffs_opts->version == 1) 882 membuf = ffs_build_dinode1(&din.ffs1_din, &dirbuf, cur, 883 root, fsopts); 884 #ifndef __DragonFly__ /* XXX UFS2 */ 885 else 886 membuf = ffs_build_dinode2(&din.ffs2_din, &dirbuf, cur, 887 root, fsopts); 888 #endif 889 890 if (debug & DEBUG_FS_POPULATE_NODE) { 891 printf("ffs_populate_dir: writing ino %d, %s", 892 cur->inode->ino, inode_type(cur->type)); 893 if (cur->inode->nlink > 1) 894 printf(", nlink %d", cur->inode->nlink); 895 putchar('\n'); 896 } 897 898 if (membuf != NULL) { 899 ffs_write_file(&din, cur->inode->ino, membuf, fsopts); 900 } else if (S_ISREG(cur->type)) { 901 ffs_write_file(&din, cur->inode->ino, 902 (cur->contents) ? cur->contents : path, fsopts); 903 } else { 904 assert (! S_ISDIR(cur->type)); 905 ffs_write_inode(&din, cur->inode->ino, fsopts); 906 } 907 } 908 909 /* 910 * pass 3: write out sub-directories 911 */ 912 if (debug & DEBUG_FS_POPULATE) 913 printf("ffs_populate_dir: PASS 3 dir %s\n", dir); 914 for (cur = root; cur != NULL; cur = cur->next) { 915 if (cur->child == NULL) 916 continue; 917 if ((size_t)snprintf(path, sizeof(path), "%s/%s", dir, 918 cur->name) >= sizeof(path)) 919 errx(1, "Pathname too long."); 920 if (! ffs_populate_dir(path, cur->child, fsopts)) 921 return (0); 922 } 923 924 if (debug & DEBUG_FS_POPULATE) 925 printf("ffs_populate_dir: DONE dir %s\n", dir); 926 927 /* cleanup */ 928 if (dirbuf.buf != NULL) 929 free(dirbuf.buf); 930 return (1); 931 } 932 933 934 static void 935 ffs_write_file(union dinode *din, uint32_t ino, void *buf, fsinfo_t *fsopts) 936 { 937 int isfile, ffd; 938 char *fbuf, *p; 939 off_t bufleft, chunk, offset; 940 ssize_t nread; 941 struct inode in; 942 struct buf * bp; 943 ffs_opt_t *ffs_opts = fsopts->fs_specific; 944 struct vnode vp = { fsopts, NULL }; 945 946 assert (din != NULL); 947 assert (buf != NULL); 948 assert (fsopts != NULL); 949 assert (ffs_opts != NULL); 950 951 isfile = S_ISREG(DIP(din, mode)); 952 fbuf = NULL; 953 ffd = -1; 954 p = NULL; 955 956 in.i_fs = (struct fs *)fsopts->superblock; 957 in.i_devvp = &vp; 958 959 if (debug & DEBUG_FS_WRITE_FILE) { 960 printf( 961 "ffs_write_file: ino %u, din %p, isfile %d, %s, size %lld", 962 ino, din, isfile, inode_type(DIP(din, mode) & S_IFMT), 963 (long long)DIP(din, size)); 964 if (isfile) 965 printf(", file '%s'\n", (char *)buf); 966 else 967 printf(", buffer %p\n", buf); 968 } 969 970 in.i_number = ino; 971 in.i_size = DIP(din, size); 972 if (ffs_opts->version == 1) 973 memcpy(&in.i_din.ffs1_din, &din->ffs1_din, 974 sizeof(in.i_din.ffs1_din)); 975 #ifndef __DragonFly__ /* XXX UFS2 */ 976 else 977 memcpy(&in.i_din.ffs2_din, &din->ffs2_din, 978 sizeof(in.i_din.ffs2_din)); 979 #endif 980 981 if (DIP(din, size) == 0) 982 goto write_inode_and_leave; /* mmm, cheating */ 983 984 if (isfile) { 985 fbuf = emalloc(ffs_opts->bsize); 986 if ((ffd = open((char *)buf, O_RDONLY, 0444)) == -1) { 987 err(EXIT_FAILURE, "Can't open `%s' for reading", (char *)buf); 988 } 989 } else { 990 p = buf; 991 } 992 993 chunk = 0; 994 for (bufleft = DIP(din, size); bufleft > 0; bufleft -= chunk) { 995 chunk = MIN(bufleft, ffs_opts->bsize); 996 if (!isfile) 997 ; 998 else if ((nread = read(ffd, fbuf, chunk)) == -1) 999 err(EXIT_FAILURE, "Reading `%s', %lld bytes to go", 1000 (char *)buf, (long long)bufleft); 1001 else if (nread != chunk) 1002 errx(EXIT_FAILURE, "Reading `%s', %lld bytes to go, " 1003 "read %zd bytes, expected %ju bytes, does " 1004 "metalog size= attribute mismatch source size?", 1005 (char *)buf, (long long)bufleft, nread, 1006 (uintmax_t)chunk); 1007 else 1008 p = fbuf; 1009 offset = DIP(din, size) - bufleft; 1010 if (debug & DEBUG_FS_WRITE_FILE_BLOCK) 1011 printf( 1012 "ffs_write_file: write %p offset %lld size %lld left %lld\n", 1013 p, (long long)offset, 1014 (long long)chunk, (long long)bufleft); 1015 /* 1016 * XXX if holey support is desired, do the check here 1017 * 1018 * XXX might need to write out last bit in fragroundup 1019 * sized chunk. however, ffs_balloc() handles this for us 1020 */ 1021 errno = ffs_balloc(&in, offset, chunk, &bp); 1022 bad_ffs_write_file: 1023 if (errno != 0) 1024 err(1, 1025 "Writing inode %d (%s), bytes %lld + %lld", 1026 ino, 1027 isfile ? (char *)buf : 1028 inode_type(DIP(din, mode) & S_IFMT), 1029 (long long)offset, (long long)chunk); 1030 memcpy(bp->b_data, p, chunk); 1031 errno = bwrite(bp); 1032 if (errno != 0) 1033 goto bad_ffs_write_file; 1034 brelse(bp); 1035 if (!isfile) 1036 p += chunk; 1037 } 1038 1039 write_inode_and_leave: 1040 ffs_write_inode(&in.i_din, in.i_number, fsopts); 1041 if (fbuf) 1042 free(fbuf); 1043 if (ffd != -1) 1044 close(ffd); 1045 } 1046 1047 1048 static void 1049 ffs_dump_dirbuf(dirbuf_t *dbuf, const char *dir, int needswap) 1050 { 1051 doff_t i; 1052 struct direct *de; 1053 uint16_t reclen; 1054 1055 assert (dbuf != NULL); 1056 assert (dir != NULL); 1057 printf("ffs_dump_dirbuf: dir %s size %d cur %d\n", 1058 dir, dbuf->size, dbuf->cur); 1059 1060 for (i = 0; i < dbuf->size; ) { 1061 de = (struct direct *)(dbuf->buf + i); 1062 reclen = ufs_rw16(de->d_reclen, needswap); 1063 printf( 1064 " inode %4d %7s offset %4d reclen %3d namlen %3d name %s\n", 1065 ufs_rw32(de->d_ino, needswap), 1066 inode_type(DTTOIF(de->d_type)), i, reclen, 1067 de->d_namlen, de->d_name); 1068 i += reclen; 1069 assert(reclen > 0); 1070 } 1071 } 1072 1073 static void 1074 ffs_make_dirbuf(dirbuf_t *dbuf, const char *name, fsnode *node, int needswap) 1075 { 1076 struct direct de, *dp; 1077 uint16_t llen, reclen; 1078 u_char *newbuf; 1079 1080 assert (dbuf != NULL); 1081 assert (name != NULL); 1082 assert (node != NULL); 1083 /* create direct entry */ 1084 (void)memset(&de, 0, sizeof(de)); 1085 de.d_ino = ufs_rw32(node->inode->ino, needswap); 1086 de.d_type = IFTODT(node->type); 1087 de.d_namlen = (uint8_t)strlen(name); 1088 strcpy(de.d_name, name); 1089 reclen = DIRSIZ_SWAP(0, &de, needswap); 1090 de.d_reclen = ufs_rw16(reclen, needswap); 1091 1092 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1093 llen = 0; 1094 if (dp != NULL) 1095 llen = DIRSIZ_SWAP(0, dp, needswap); 1096 1097 if (debug & DEBUG_FS_MAKE_DIRBUF) 1098 printf( 1099 "ffs_make_dirbuf: dbuf siz %d cur %d lastlen %d\n" 1100 " ino %d type %d reclen %d namlen %d name %.30s\n", 1101 dbuf->size, dbuf->cur, llen, 1102 ufs_rw32(de.d_ino, needswap), de.d_type, reclen, 1103 de.d_namlen, de.d_name); 1104 1105 if (reclen + dbuf->cur + llen > roundup(dbuf->size, DIRBLKSIZ)) { 1106 if (debug & DEBUG_FS_MAKE_DIRBUF) 1107 printf("ffs_make_dirbuf: growing buf to %d\n", 1108 dbuf->size + DIRBLKSIZ); 1109 newbuf = erealloc(dbuf->buf, dbuf->size + DIRBLKSIZ); 1110 dbuf->buf = newbuf; 1111 dbuf->size += DIRBLKSIZ; 1112 memset(dbuf->buf + dbuf->size - DIRBLKSIZ, 0, DIRBLKSIZ); 1113 dbuf->cur = dbuf->size - DIRBLKSIZ; 1114 } else if (dp) { /* shrink end of previous */ 1115 dp->d_reclen = ufs_rw16(llen,needswap); 1116 dbuf->cur += llen; 1117 } 1118 dp = (struct direct *)(dbuf->buf + dbuf->cur); 1119 memcpy(dp, &de, reclen); 1120 dp->d_reclen = ufs_rw16(dbuf->size - dbuf->cur, needswap); 1121 } 1122 1123 /* 1124 * cribbed from sys/ufs/ffs/ffs_alloc.c 1125 */ 1126 static void 1127 ffs_write_inode(union dinode *dp, uint32_t ino, const fsinfo_t *fsopts) 1128 { 1129 char *buf; 1130 struct ufs1_dinode *dp1; 1131 #ifndef __DragonFly__ /* XXX UFS2 */ 1132 struct ufs2_dinode *dp2, *dip; 1133 #endif 1134 struct cg *cgp; 1135 struct fs *fs; 1136 int cg, cgino; 1137 #ifndef __DragonFly__ /* XXX UFS2 */ 1138 uint32_t i; 1139 #endif 1140 makefs_daddr_t d; 1141 char sbbuf[FFS_MAXBSIZE]; 1142 #ifndef __DragonFly__ /* XXX UFS2 */ 1143 uint32_t initediblk; 1144 #endif 1145 ffs_opt_t *ffs_opts = fsopts->fs_specific; 1146 1147 assert (dp != NULL); 1148 assert (ino > 0); 1149 assert (fsopts != NULL); 1150 assert (ffs_opts != NULL); 1151 1152 fs = (struct fs *)fsopts->superblock; 1153 cg = ino_to_cg(fs, ino); 1154 cgino = ino % fs->fs_ipg; 1155 if (debug & DEBUG_FS_WRITE_INODE) 1156 printf("ffs_write_inode: din %p ino %u cg %d cgino %d\n", 1157 dp, ino, cg, cgino); 1158 1159 ffs_rdfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1160 fsopts); 1161 cgp = (struct cg *)sbbuf; 1162 if (!cg_chkmagic_swap(cgp, fsopts->needswap)) 1163 errx(1, "ffs_write_inode: cg %d: bad magic number", cg); 1164 1165 assert (isclr(cg_inosused_swap(cgp, fsopts->needswap), cgino)); 1166 1167 buf = emalloc(fs->fs_bsize); 1168 dp1 = (struct ufs1_dinode *)buf; 1169 #ifndef __DragonFly__ /* XXX UFS2 */ 1170 dp2 = (struct ufs2_dinode *)buf; 1171 #endif 1172 1173 if (fs->fs_cstotal.cs_nifree == 0) 1174 errx(1, "ffs_write_inode: fs out of inodes for ino %u", 1175 ino); 1176 if (fs->fs_cs(fs, cg).cs_nifree == 0) 1177 errx(1, 1178 "ffs_write_inode: cg %d out of inodes for ino %u", 1179 cg, ino); 1180 setbit(cg_inosused_swap(cgp, fsopts->needswap), cgino); 1181 ufs_add32(cgp->cg_cs.cs_nifree, -1, fsopts->needswap); 1182 fs->fs_cstotal.cs_nifree--; 1183 fs->fs_cs(fs, cg).cs_nifree--; 1184 if (S_ISDIR(DIP(dp, mode))) { 1185 ufs_add32(cgp->cg_cs.cs_ndir, 1, fsopts->needswap); 1186 fs->fs_cstotal.cs_ndir++; 1187 fs->fs_cs(fs, cg).cs_ndir++; 1188 } 1189 1190 #ifndef __DragonFly__ /* XXX UFS2 */ 1191 /* 1192 * Initialize inode blocks on the fly for UFS2. 1193 */ 1194 initediblk = ufs_rw32(cgp->cg_initediblk, fsopts->needswap); 1195 while (ffs_opts->version == 2 && cgino + INOPB(fs) > initediblk && 1196 initediblk < ufs_rw32(cgp->cg_niblk, fsopts->needswap)) { 1197 memset(buf, 0, fs->fs_bsize); 1198 dip = (struct ufs2_dinode *)buf; 1199 for (i = 0; i < INOPB(fs); i++) { 1200 dip->di_gen = random(); 1201 dip++; 1202 } 1203 ffs_wtfs(fsbtodb(fs, ino_to_fsba(fs, 1204 cg * fs->fs_ipg + initediblk)), 1205 fs->fs_bsize, buf, fsopts); 1206 initediblk += INOPB(fs); 1207 cgp->cg_initediblk = ufs_rw32(initediblk, fsopts->needswap); 1208 } 1209 #endif 1210 1211 1212 ffs_wtfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1213 fsopts); 1214 1215 /* now write inode */ 1216 d = fsbtodb(fs, ino_to_fsba(fs, ino)); 1217 ffs_rdfs(d, fs->fs_bsize, buf, fsopts); 1218 if (fsopts->needswap) { 1219 if (ffs_opts->version == 1) 1220 ffs_dinode1_swap(&dp->ffs1_din, 1221 &dp1[ino_to_fsbo(fs, ino)]); 1222 #ifndef __DragonFly__ /* XXX UFS2 */ 1223 else 1224 ffs_dinode2_swap(&dp->ffs2_din, 1225 &dp2[ino_to_fsbo(fs, ino)]); 1226 #endif 1227 } else { 1228 if (ffs_opts->version == 1) 1229 dp1[ino_to_fsbo(fs, ino)] = dp->ffs1_din; 1230 #ifndef __DragonFly__ /* XXX UFS2 */ 1231 else 1232 dp2[ino_to_fsbo(fs, ino)] = dp->ffs2_din; 1233 #endif 1234 } 1235 ffs_wtfs(d, fs->fs_bsize, buf, fsopts); 1236 free(buf); 1237 } 1238 1239 void 1240 panic(const char *fmt, ...) 1241 { 1242 va_list ap; 1243 1244 va_start(ap, fmt); 1245 vwarnx(fmt, ap); 1246 va_end(ap); 1247 exit(1); 1248 } 1249