1 /* $NetBSD: ffs.c,v 1.45 2011/10/09 22:49:26 christos Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-4-Clause
5 *
6 * Copyright (c) 2001 Wasabi Systems, Inc.
7 * All rights reserved.
8 *
9 * Written by Luke Mewburn for Wasabi Systems, Inc.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed for the NetBSD Project by
22 * Wasabi Systems, Inc.
23 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
24 * or promote products derived from this software without specific prior
25 * written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39 /*
40 * Copyright (c) 1982, 1986, 1989, 1993
41 * The Regents of the University of California. All rights reserved.
42 *
43 * Redistribution and use in source and binary forms, with or without
44 * modification, are permitted provided that the following conditions
45 * are met:
46 * 1. Redistributions of source code must retain the above copyright
47 * notice, this list of conditions and the following disclaimer.
48 * 2. Redistributions in binary form must reproduce the above copyright
49 * notice, this list of conditions and the following disclaimer in the
50 * documentation and/or other materials provided with the distribution.
51 * 3. Neither the name of the University nor the names of its contributors
52 * may be used to endorse or promote products derived from this software
53 * without specific prior written permission.
54 *
55 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
56 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
57 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
58 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
59 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
60 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
61 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
62 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
63 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
64 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
65 * SUCH DAMAGE.
66 *
67 * @(#)ffs_alloc.c 8.19 (Berkeley) 7/13/95
68 */
69
70 #include <sys/cdefs.h>
71 __FBSDID("$FreeBSD$");
72
73 #if HAVE_NBTOOL_CONFIG_H
74 #include "nbtool_config.h"
75 #endif
76
77 #include <sys/param.h>
78
79 #include <sys/mount.h>
80
81 #include <assert.h>
82 #include <errno.h>
83 #include <fcntl.h>
84 #include <stdarg.h>
85 #include <stdint.h>
86 #include <stdio.h>
87 #include <stdlib.h>
88 #include <string.h>
89 #include <time.h>
90 #include <unistd.h>
91 #include <util.h>
92
93 #include "makefs.h"
94 #include "ffs.h"
95
96 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
97 #include <sys/statvfs.h>
98 #endif
99
100 #include <ufs/ufs/dinode.h>
101 #include <ufs/ufs/dir.h>
102 #include <ufs/ffs/fs.h>
103
104
105 #include "ffs/ufs_bswap.h"
106 #include "ffs/ufs_inode.h"
107 #include "ffs/newfs_extern.h"
108 #include "ffs/ffs_extern.h"
109
110 #undef DIP
111 #define DIP(dp, field) \
112 ((ffs_opts->version == 1) ? \
113 (dp)->ffs1_din.di_##field : (dp)->ffs2_din.di_##field)
114
115 /*
116 * Various file system defaults (cribbed from newfs(8)).
117 */
118 #define DFL_FRAGSIZE 4096 /* fragment size */
119 #define DFL_BLKSIZE 32768 /* block size */
120 #define DFL_SECSIZE 512 /* sector size */
121 #define DFL_CYLSPERGROUP 65536 /* cylinders per group */
122 #define DFL_FRAGSPERINODE 4 /* fragments per inode */
123 #define DFL_ROTDELAY 0 /* rotational delay */
124 #define DFL_NRPOS 1 /* rotational positions */
125 #define DFL_RPM 3600 /* rpm of disk */
126 #define DFL_NSECTORS 64 /* # of sectors */
127 #define DFL_NTRACKS 16 /* # of tracks */
128
129
130 typedef struct {
131 u_char *buf; /* buf for directory */
132 doff_t size; /* full size of buf */
133 doff_t cur; /* offset of current entry */
134 } dirbuf_t;
135
136
137 static int ffs_create_image(const char *, fsinfo_t *);
138 static void ffs_dump_fsinfo(fsinfo_t *);
139 static void ffs_dump_dirbuf(dirbuf_t *, const char *, int);
140 static void ffs_make_dirbuf(dirbuf_t *, const char *, fsnode *, int);
141 static int ffs_populate_dir(const char *, fsnode *, fsinfo_t *);
142 static void ffs_size_dir(fsnode *, fsinfo_t *);
143 static void ffs_validate(const char *, fsnode *, fsinfo_t *);
144 static void ffs_write_file(union dinode *, uint32_t, void *, fsinfo_t *);
145 static void ffs_write_inode(union dinode *, uint32_t, const fsinfo_t *);
146 static void *ffs_build_dinode1(struct ufs1_dinode *, dirbuf_t *, fsnode *,
147 fsnode *, fsinfo_t *);
148 static void *ffs_build_dinode2(struct ufs2_dinode *, dirbuf_t *, fsnode *,
149 fsnode *, fsinfo_t *);
150
151
152 /* publicly visible functions */
153
154 void
ffs_prep_opts(fsinfo_t * fsopts)155 ffs_prep_opts(fsinfo_t *fsopts)
156 {
157 ffs_opt_t *ffs_opts = ecalloc(1, sizeof(*ffs_opts));
158
159 const option_t ffs_options[] = {
160 { 'b', "bsize", &ffs_opts->bsize, OPT_INT32,
161 1, INT_MAX, "block size" },
162 { 'f', "fsize", &ffs_opts->fsize, OPT_INT32,
163 1, INT_MAX, "fragment size" },
164 { 'd', "density", &ffs_opts->density, OPT_INT32,
165 1, INT_MAX, "bytes per inode" },
166 { 'm', "minfree", &ffs_opts->minfree, OPT_INT32,
167 0, 99, "minfree" },
168 { 'M', "maxbpg", &ffs_opts->maxbpg, OPT_INT32,
169 1, INT_MAX, "max blocks per file in a cg" },
170 { 'a', "avgfilesize", &ffs_opts->avgfilesize, OPT_INT32,
171 1, INT_MAX, "expected average file size" },
172 { 'n', "avgfpdir", &ffs_opts->avgfpdir, OPT_INT32,
173 1, INT_MAX, "expected # of files per directory" },
174 { 'x', "extent", &ffs_opts->maxbsize, OPT_INT32,
175 1, INT_MAX, "maximum # extent size" },
176 { 'g', "maxbpcg", &ffs_opts->maxblkspercg, OPT_INT32,
177 1, INT_MAX, "max # of blocks per group" },
178 { 'v', "version", &ffs_opts->version, OPT_INT32,
179 1, 2, "UFS version" },
180 { 'o', "optimization", NULL, OPT_STRBUF,
181 0, 0, "Optimization (time|space)" },
182 { 'l', "label", ffs_opts->label, OPT_STRARRAY,
183 1, sizeof(ffs_opts->label), "UFS label" },
184 { 's', "softupdates", &ffs_opts->softupdates, OPT_INT32,
185 0, 1, "enable softupdates" },
186 { .name = NULL }
187 };
188
189 ffs_opts->bsize= -1;
190 ffs_opts->fsize= -1;
191 ffs_opts->cpg= -1;
192 ffs_opts->density= -1;
193 ffs_opts->min_inodes= false;
194 ffs_opts->minfree= -1;
195 ffs_opts->optimization= -1;
196 ffs_opts->maxcontig= -1;
197 ffs_opts->maxbpg= -1;
198 ffs_opts->avgfilesize= -1;
199 ffs_opts->avgfpdir= -1;
200 ffs_opts->version = 1;
201 ffs_opts->softupdates = 0;
202
203 fsopts->fs_specific = ffs_opts;
204 fsopts->fs_options = copy_opts(ffs_options);
205 }
206
207 void
ffs_cleanup_opts(fsinfo_t * fsopts)208 ffs_cleanup_opts(fsinfo_t *fsopts)
209 {
210 free(fsopts->fs_specific);
211 free(fsopts->fs_options);
212 }
213
214 int
ffs_parse_opts(const char * option,fsinfo_t * fsopts)215 ffs_parse_opts(const char *option, fsinfo_t *fsopts)
216 {
217 ffs_opt_t *ffs_opts = fsopts->fs_specific;
218 option_t *ffs_options = fsopts->fs_options;
219 char buf[1024];
220
221 int rv;
222
223 assert(option != NULL);
224 assert(fsopts != NULL);
225 assert(ffs_opts != NULL);
226
227 if (debug & DEBUG_FS_PARSE_OPTS)
228 printf("ffs_parse_opts: got `%s'\n", option);
229
230 rv = set_option(ffs_options, option, buf, sizeof(buf));
231 if (rv == -1)
232 return 0;
233
234 if (ffs_options[rv].name == NULL)
235 abort();
236
237 switch (ffs_options[rv].letter) {
238 case 'o':
239 if (strcmp(buf, "time") == 0) {
240 ffs_opts->optimization = FS_OPTTIME;
241 } else if (strcmp(buf, "space") == 0) {
242 ffs_opts->optimization = FS_OPTSPACE;
243 } else {
244 warnx("Invalid optimization `%s'", buf);
245 return 0;
246 }
247 break;
248 default:
249 break;
250 }
251 return 1;
252 }
253
254
255 void
ffs_makefs(const char * image,const char * dir,fsnode * root,fsinfo_t * fsopts)256 ffs_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts)
257 {
258 struct fs *superblock;
259 struct timeval start;
260
261 assert(image != NULL);
262 assert(dir != NULL);
263 assert(root != NULL);
264 assert(fsopts != NULL);
265
266 if (debug & DEBUG_FS_MAKEFS)
267 printf("ffs_makefs: image %s directory %s root %p\n",
268 image, dir, root);
269
270 /* if user wants no free space, use minimum number of inodes */
271 if (fsopts->minsize == 0 && fsopts->freeblockpc == 0 &&
272 fsopts->freeblocks == 0)
273 ((ffs_opt_t *)fsopts->fs_specific)->min_inodes = true;
274
275 /* validate tree and options */
276 TIMER_START(start);
277 ffs_validate(dir, root, fsopts);
278 TIMER_RESULTS(start, "ffs_validate");
279
280 printf("Calculated size of `%s': %lld bytes, %lld inodes\n",
281 image, (long long)fsopts->size, (long long)fsopts->inodes);
282
283 /* create image */
284 TIMER_START(start);
285 if (ffs_create_image(image, fsopts) == -1)
286 errx(1, "Image file `%s' not created.", image);
287 TIMER_RESULTS(start, "ffs_create_image");
288
289 fsopts->curinode = UFS_ROOTINO;
290
291 if (debug & DEBUG_FS_MAKEFS)
292 putchar('\n');
293
294 /* populate image */
295 printf("Populating `%s'\n", image);
296 TIMER_START(start);
297 if (! ffs_populate_dir(dir, root, fsopts))
298 errx(1, "Image file `%s' not populated.", image);
299 TIMER_RESULTS(start, "ffs_populate_dir");
300
301 /* ensure no outstanding buffers remain */
302 if (debug & DEBUG_FS_MAKEFS)
303 bcleanup();
304
305 /* update various superblock parameters */
306 superblock = fsopts->superblock;
307 superblock->fs_fmod = 0;
308 superblock->fs_old_cstotal.cs_ndir = superblock->fs_cstotal.cs_ndir;
309 superblock->fs_old_cstotal.cs_nbfree = superblock->fs_cstotal.cs_nbfree;
310 superblock->fs_old_cstotal.cs_nifree = superblock->fs_cstotal.cs_nifree;
311 superblock->fs_old_cstotal.cs_nffree = superblock->fs_cstotal.cs_nffree;
312
313 /* write out superblock; image is now complete */
314 ffs_write_superblock(fsopts->superblock, fsopts);
315 if (close(fsopts->fd) == -1)
316 err(1, "Closing `%s'", image);
317 fsopts->fd = -1;
318 printf("Image `%s' complete\n", image);
319 }
320
321 /* end of public functions */
322
323
324 static void
ffs_validate(const char * dir,fsnode * root,fsinfo_t * fsopts)325 ffs_validate(const char *dir, fsnode *root, fsinfo_t *fsopts)
326 {
327 int32_t ncg = 1;
328 #ifdef notyet
329 int32_t spc, nspf, ncyl, fssize;
330 #endif
331 ffs_opt_t *ffs_opts = fsopts->fs_specific;
332
333 assert(dir != NULL);
334 assert(root != NULL);
335 assert(fsopts != NULL);
336 assert(ffs_opts != NULL);
337
338 if (debug & DEBUG_FS_VALIDATE) {
339 printf("ffs_validate: before defaults set:\n");
340 ffs_dump_fsinfo(fsopts);
341 }
342
343 /* set FFS defaults */
344 if (fsopts->sectorsize == -1)
345 fsopts->sectorsize = DFL_SECSIZE;
346 if (ffs_opts->fsize == -1)
347 ffs_opts->fsize = MAX(DFL_FRAGSIZE, fsopts->sectorsize);
348 if (ffs_opts->bsize == -1)
349 ffs_opts->bsize = MIN(DFL_BLKSIZE, 8 * ffs_opts->fsize);
350 if (ffs_opts->cpg == -1)
351 ffs_opts->cpg = DFL_CYLSPERGROUP;
352 else
353 ffs_opts->cpgflg = 1;
354 /* fsopts->density is set below */
355 if (ffs_opts->nsectors == -1)
356 ffs_opts->nsectors = DFL_NSECTORS;
357 if (ffs_opts->minfree == -1)
358 ffs_opts->minfree = MINFREE;
359 if (ffs_opts->optimization == -1)
360 ffs_opts->optimization = DEFAULTOPT;
361 if (ffs_opts->maxcontig == -1)
362 ffs_opts->maxcontig =
363 MAX(1, MIN(MAXPHYS, FFS_MAXBSIZE) / ffs_opts->bsize);
364 /* XXX ondisk32 */
365 if (ffs_opts->maxbpg == -1)
366 ffs_opts->maxbpg = ffs_opts->bsize / sizeof(int32_t);
367 if (ffs_opts->avgfilesize == -1)
368 ffs_opts->avgfilesize = AVFILESIZ;
369 if (ffs_opts->avgfpdir == -1)
370 ffs_opts->avgfpdir = AFPDIR;
371
372 if (fsopts->maxsize > 0 &&
373 roundup(fsopts->minsize, ffs_opts->bsize) > fsopts->maxsize)
374 errx(1, "`%s' minsize of %lld rounded up to ffs bsize of %d "
375 "exceeds maxsize %lld. Lower bsize, or round the minimum "
376 "and maximum sizes to bsize.", dir,
377 (long long)fsopts->minsize, ffs_opts->bsize,
378 (long long)fsopts->maxsize);
379
380 /* calculate size of tree */
381 ffs_size_dir(root, fsopts);
382 fsopts->inodes += UFS_ROOTINO; /* include first two inodes */
383
384 if (debug & DEBUG_FS_VALIDATE)
385 printf("ffs_validate: size of tree: %lld bytes, %lld inodes\n",
386 (long long)fsopts->size, (long long)fsopts->inodes);
387
388 /* add requested slop */
389 fsopts->size += fsopts->freeblocks;
390 fsopts->inodes += fsopts->freefiles;
391 if (fsopts->freefilepc > 0)
392 fsopts->inodes =
393 fsopts->inodes * (100 + fsopts->freefilepc) / 100;
394 if (fsopts->freeblockpc > 0)
395 fsopts->size =
396 fsopts->size * (100 + fsopts->freeblockpc) / 100;
397
398 /* add space needed for superblocks */
399 /*
400 * The old SBOFF (SBLOCK_UFS1) is used here because makefs is
401 * typically used for small filesystems where space matters.
402 * XXX make this an option.
403 */
404 fsopts->size += (SBLOCK_UFS1 + SBLOCKSIZE) * ncg;
405 /* add space needed to store inodes, x3 for blockmaps, etc */
406 if (ffs_opts->version == 1)
407 fsopts->size += ncg * DINODE1_SIZE *
408 roundup(fsopts->inodes / ncg,
409 ffs_opts->bsize / DINODE1_SIZE);
410 else
411 fsopts->size += ncg * DINODE2_SIZE *
412 roundup(fsopts->inodes / ncg,
413 ffs_opts->bsize / DINODE2_SIZE);
414
415 /* add minfree */
416 if (ffs_opts->minfree > 0)
417 fsopts->size =
418 fsopts->size * (100 + ffs_opts->minfree) / 100;
419 /*
420 * XXX any other fs slop to add, such as csum's, bitmaps, etc ??
421 */
422
423 if (fsopts->size < fsopts->minsize) /* ensure meets minimum size */
424 fsopts->size = fsopts->minsize;
425
426 /* round up to the next block */
427 fsopts->size = roundup(fsopts->size, ffs_opts->bsize);
428
429 /* round up to requested block size, if any */
430 if (fsopts->roundup > 0)
431 fsopts->size = roundup(fsopts->size, fsopts->roundup);
432
433 /* calculate density to just fit inodes if no free space */
434 if (ffs_opts->density == -1)
435 ffs_opts->density = fsopts->size / fsopts->inodes + 1;
436
437 if (debug & DEBUG_FS_VALIDATE) {
438 printf("ffs_validate: after defaults set:\n");
439 ffs_dump_fsinfo(fsopts);
440 printf("ffs_validate: dir %s; %lld bytes, %lld inodes\n",
441 dir, (long long)fsopts->size, (long long)fsopts->inodes);
442 }
443 /* now check calculated sizes vs requested sizes */
444 if (fsopts->maxsize > 0 && fsopts->size > fsopts->maxsize) {
445 errx(1, "`%s' size of %lld is larger than the maxsize of %lld.",
446 dir, (long long)fsopts->size, (long long)fsopts->maxsize);
447 }
448 }
449
450
451 static void
ffs_dump_fsinfo(fsinfo_t * f)452 ffs_dump_fsinfo(fsinfo_t *f)
453 {
454
455 ffs_opt_t *fs = f->fs_specific;
456
457 printf("fsopts at %p\n", f);
458
459 printf("\tsize %lld, inodes %lld, curinode %u\n",
460 (long long)f->size, (long long)f->inodes, f->curinode);
461
462 printf("\tminsize %lld, maxsize %lld\n",
463 (long long)f->minsize, (long long)f->maxsize);
464 printf("\tfree files %lld, freefile %% %d\n",
465 (long long)f->freefiles, f->freefilepc);
466 printf("\tfree blocks %lld, freeblock %% %d\n",
467 (long long)f->freeblocks, f->freeblockpc);
468 printf("\tneedswap %d, sectorsize %d\n", f->needswap, f->sectorsize);
469
470 printf("\tbsize %d, fsize %d, cpg %d, density %d\n",
471 fs->bsize, fs->fsize, fs->cpg, fs->density);
472 printf("\tnsectors %d, rpm %d, minfree %d\n",
473 fs->nsectors, fs->rpm, fs->minfree);
474 printf("\tmaxcontig %d, maxbpg %d\n",
475 fs->maxcontig, fs->maxbpg);
476 printf("\toptimization %s\n",
477 fs->optimization == FS_OPTSPACE ? "space" : "time");
478 }
479
480
481 static int
ffs_create_image(const char * image,fsinfo_t * fsopts)482 ffs_create_image(const char *image, fsinfo_t *fsopts)
483 {
484 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
485 struct statvfs sfs;
486 #endif
487 struct fs *fs;
488 char *buf;
489 int i, bufsize;
490 off_t bufrem;
491 int oflags = O_RDWR | O_CREAT;
492 time_t tstamp;
493
494 assert (image != NULL);
495 assert (fsopts != NULL);
496
497 /* create image */
498 if (fsopts->offset == 0)
499 oflags |= O_TRUNC;
500 if ((fsopts->fd = open(image, oflags, 0666)) == -1) {
501 warn("Can't open `%s' for writing", image);
502 return (-1);
503 }
504
505 /* zero image */
506 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
507 if (fstatvfs(fsopts->fd, &sfs) == -1) {
508 #endif
509 bufsize = 8192;
510 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
511 warn("can't fstatvfs `%s', using default %d byte chunk",
512 image, bufsize);
513 } else
514 bufsize = sfs.f_iosize;
515 #endif
516 bufrem = fsopts->size;
517 if (fsopts->sparse) {
518 if (ftruncate(fsopts->fd, bufrem) == -1) {
519 warn("sparse option disabled.");
520 fsopts->sparse = 0;
521 }
522 }
523 if (fsopts->sparse) {
524 /* File truncated at bufrem. Remaining is 0 */
525 bufrem = 0;
526 buf = NULL;
527 } else {
528 if (debug & DEBUG_FS_CREATE_IMAGE)
529 printf("zero-ing image `%s', %lld sectors, "
530 "using %d byte chunks\n", image, (long long)bufrem,
531 bufsize);
532 buf = ecalloc(1, bufsize);
533 }
534
535 if (fsopts->offset != 0)
536 if (lseek(fsopts->fd, fsopts->offset, SEEK_SET) == -1) {
537 warn("can't seek");
538 free(buf);
539 return -1;
540 }
541
542 while (bufrem > 0) {
543 i = write(fsopts->fd, buf, MIN(bufsize, bufrem));
544 if (i == -1) {
545 warn("zeroing image, %lld bytes to go",
546 (long long)bufrem);
547 free(buf);
548 return (-1);
549 }
550 bufrem -= i;
551 }
552 if (buf)
553 free(buf);
554
555 /* make the file system */
556 if (debug & DEBUG_FS_CREATE_IMAGE)
557 printf("calling mkfs(\"%s\", ...)\n", image);
558
559 if (stampst.st_ino != 0)
560 tstamp = stampst.st_ctime;
561 else
562 tstamp = start_time.tv_sec;
563
564 srandom(tstamp);
565
566 fs = ffs_mkfs(image, fsopts, tstamp);
567 fsopts->superblock = (void *)fs;
568 if (debug & DEBUG_FS_CREATE_IMAGE) {
569 time_t t;
570
571 t = (time_t)((struct fs *)fsopts->superblock)->fs_time;
572 printf("mkfs returned %p; fs_time %s",
573 fsopts->superblock, ctime(&t));
574 printf("fs totals: nbfree %lld, nffree %lld, nifree %lld, ndir %lld\n",
575 (long long)fs->fs_cstotal.cs_nbfree,
576 (long long)fs->fs_cstotal.cs_nffree,
577 (long long)fs->fs_cstotal.cs_nifree,
578 (long long)fs->fs_cstotal.cs_ndir);
579 }
580
581 if (fs->fs_cstotal.cs_nifree + UFS_ROOTINO < fsopts->inodes) {
582 warnx(
583 "Image file `%s' has %lld free inodes; %lld are required.",
584 image,
585 (long long)(fs->fs_cstotal.cs_nifree + UFS_ROOTINO),
586 (long long)fsopts->inodes);
587 return (-1);
588 }
589 return (fsopts->fd);
590 }
591
592
593 static void
ffs_size_dir(fsnode * root,fsinfo_t * fsopts)594 ffs_size_dir(fsnode *root, fsinfo_t *fsopts)
595 {
596 struct direct tmpdir;
597 fsnode * node;
598 int curdirsize, this;
599 ffs_opt_t *ffs_opts = fsopts->fs_specific;
600
601 /* node may be NULL (empty directory) */
602 assert(fsopts != NULL);
603 assert(ffs_opts != NULL);
604
605 if (debug & DEBUG_FS_SIZE_DIR)
606 printf("ffs_size_dir: entry: bytes %lld inodes %lld\n",
607 (long long)fsopts->size, (long long)fsopts->inodes);
608
609 #define ADDDIRENT(e) do { \
610 tmpdir.d_namlen = strlen((e)); \
611 this = DIRSIZ_SWAP(0, &tmpdir, 0); \
612 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \
613 printf("ADDDIRENT: was: %s (%d) this %d cur %d\n", \
614 e, tmpdir.d_namlen, this, curdirsize); \
615 if (this + curdirsize > roundup(curdirsize, DIRBLKSIZ)) \
616 curdirsize = roundup(curdirsize, DIRBLKSIZ); \
617 curdirsize += this; \
618 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \
619 printf("ADDDIRENT: now: %s (%d) this %d cur %d\n", \
620 e, tmpdir.d_namlen, this, curdirsize); \
621 } while (0);
622
623 /*
624 * XXX this needs to take into account extra space consumed
625 * by indirect blocks, etc.
626 */
627 #define ADDSIZE(x) do { \
628 fsopts->size += roundup((x), ffs_opts->fsize); \
629 } while (0);
630
631 curdirsize = 0;
632 for (node = root; node != NULL; node = node->next) {
633 ADDDIRENT(node->name);
634 if (node == root) { /* we're at "." */
635 assert(strcmp(node->name, ".") == 0);
636 ADDDIRENT("..");
637 } else if ((node->inode->flags & FI_SIZED) == 0) {
638 /* don't count duplicate names */
639 node->inode->flags |= FI_SIZED;
640 if (debug & DEBUG_FS_SIZE_DIR_NODE)
641 printf("ffs_size_dir: `%s' size %lld\n",
642 node->name,
643 (long long)node->inode->st.st_size);
644 fsopts->inodes++;
645 if (node->type == S_IFREG)
646 ADDSIZE(node->inode->st.st_size);
647 if (node->type == S_IFLNK) {
648 size_t slen;
649
650 slen = strlen(node->symlink) + 1;
651 if (slen >= (ffs_opts->version == 1 ?
652 UFS1_MAXSYMLINKLEN :
653 UFS2_MAXSYMLINKLEN))
654 ADDSIZE(slen);
655 }
656 }
657 if (node->type == S_IFDIR)
658 ffs_size_dir(node->child, fsopts);
659 }
660 ADDSIZE(curdirsize);
661
662 if (debug & DEBUG_FS_SIZE_DIR)
663 printf("ffs_size_dir: exit: size %lld inodes %lld\n",
664 (long long)fsopts->size, (long long)fsopts->inodes);
665 }
666
667 static void *
ffs_build_dinode1(struct ufs1_dinode * dinp,dirbuf_t * dbufp,fsnode * cur,fsnode * root,fsinfo_t * fsopts)668 ffs_build_dinode1(struct ufs1_dinode *dinp, dirbuf_t *dbufp, fsnode *cur,
669 fsnode *root, fsinfo_t *fsopts)
670 {
671 size_t slen;
672 void *membuf;
673 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st;
674
675 memset(dinp, 0, sizeof(*dinp));
676 dinp->di_mode = cur->inode->st.st_mode;
677 dinp->di_nlink = cur->inode->nlink;
678 dinp->di_size = cur->inode->st.st_size;
679 #if HAVE_STRUCT_STAT_ST_FLAGS
680 dinp->di_flags = cur->inode->st.st_flags;
681 #endif
682 dinp->di_gen = random();
683 dinp->di_uid = cur->inode->st.st_uid;
684 dinp->di_gid = cur->inode->st.st_gid;
685
686 dinp->di_atime = st->st_atime;
687 dinp->di_mtime = st->st_mtime;
688 dinp->di_ctime = st->st_ctime;
689 #if HAVE_STRUCT_STAT_ST_MTIMENSEC
690 dinp->di_atimensec = st->st_atimensec;
691 dinp->di_mtimensec = st->st_mtimensec;
692 dinp->di_ctimensec = st->st_ctimensec;
693 #endif
694 /* not set: di_db, di_ib, di_blocks, di_spare */
695
696 membuf = NULL;
697 if (cur == root) { /* "."; write dirbuf */
698 membuf = dbufp->buf;
699 dinp->di_size = dbufp->size;
700 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) {
701 dinp->di_size = 0; /* a device */
702 dinp->di_rdev =
703 ufs_rw32(cur->inode->st.st_rdev, fsopts->needswap);
704 } else if (S_ISLNK(cur->type)) { /* symlink */
705 slen = strlen(cur->symlink);
706 if (slen < UFS1_MAXSYMLINKLEN) { /* short link */
707 memcpy(dinp->di_db, cur->symlink, slen);
708 } else
709 membuf = cur->symlink;
710 dinp->di_size = slen;
711 }
712 return membuf;
713 }
714
715 static void *
ffs_build_dinode2(struct ufs2_dinode * dinp,dirbuf_t * dbufp,fsnode * cur,fsnode * root,fsinfo_t * fsopts)716 ffs_build_dinode2(struct ufs2_dinode *dinp, dirbuf_t *dbufp, fsnode *cur,
717 fsnode *root, fsinfo_t *fsopts)
718 {
719 size_t slen;
720 void *membuf;
721 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st;
722
723 memset(dinp, 0, sizeof(*dinp));
724 dinp->di_mode = cur->inode->st.st_mode;
725 dinp->di_nlink = cur->inode->nlink;
726 dinp->di_size = cur->inode->st.st_size;
727 #if HAVE_STRUCT_STAT_ST_FLAGS
728 dinp->di_flags = cur->inode->st.st_flags;
729 #endif
730 dinp->di_gen = random();
731 dinp->di_uid = cur->inode->st.st_uid;
732 dinp->di_gid = cur->inode->st.st_gid;
733
734 dinp->di_atime = st->st_atime;
735 dinp->di_mtime = st->st_mtime;
736 dinp->di_ctime = st->st_ctime;
737 #if HAVE_STRUCT_STAT_BIRTHTIME
738 dinp->di_birthtime = st->st_birthtime;
739 #else
740 dinp->di_birthtime = st->st_ctime;
741 #endif
742 #if HAVE_STRUCT_STAT_ST_MTIMENSEC
743 dinp->di_atimensec = st->st_atimensec;
744 dinp->di_mtimensec = st->st_mtimensec;
745 dinp->di_ctimensec = st->st_ctimensec;
746 #if HAVE_STRUCT_STAT_BIRTHTIME
747 dinp->di_birthnsec = st->st_birthtimensec;
748 #else
749 dinp->di_birthnsec = st->st_ctimensec;
750 #endif
751 #endif
752
753 /* not set: di_db, di_ib, di_blocks, di_spare */
754
755 membuf = NULL;
756 if (cur == root) { /* "."; write dirbuf */
757 membuf = dbufp->buf;
758 dinp->di_size = dbufp->size;
759 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) {
760 dinp->di_size = 0; /* a device */
761 dinp->di_rdev =
762 ufs_rw64(cur->inode->st.st_rdev, fsopts->needswap);
763 } else if (S_ISLNK(cur->type)) { /* symlink */
764 slen = strlen(cur->symlink);
765 if (slen < UFS2_MAXSYMLINKLEN) { /* short link */
766 memcpy(dinp->di_db, cur->symlink, slen);
767 } else
768 membuf = cur->symlink;
769 dinp->di_size = slen;
770 }
771 return membuf;
772 }
773
774 static int
ffs_populate_dir(const char * dir,fsnode * root,fsinfo_t * fsopts)775 ffs_populate_dir(const char *dir, fsnode *root, fsinfo_t *fsopts)
776 {
777 fsnode *cur;
778 dirbuf_t dirbuf;
779 union dinode din;
780 void *membuf;
781 char path[MAXPATHLEN + 1];
782 ffs_opt_t *ffs_opts = fsopts->fs_specific;
783
784 assert(dir != NULL);
785 assert(root != NULL);
786 assert(fsopts != NULL);
787 assert(ffs_opts != NULL);
788
789 (void)memset(&dirbuf, 0, sizeof(dirbuf));
790
791 if (debug & DEBUG_FS_POPULATE)
792 printf("ffs_populate_dir: PASS 1 dir %s node %p\n", dir, root);
793
794 /*
795 * pass 1: allocate inode numbers, build directory `file'
796 */
797 for (cur = root; cur != NULL; cur = cur->next) {
798 if ((cur->inode->flags & FI_ALLOCATED) == 0) {
799 cur->inode->flags |= FI_ALLOCATED;
800 if (cur == root && cur->parent != NULL)
801 cur->inode->ino = cur->parent->inode->ino;
802 else {
803 cur->inode->ino = fsopts->curinode;
804 fsopts->curinode++;
805 }
806 }
807 ffs_make_dirbuf(&dirbuf, cur->name, cur, fsopts->needswap);
808 if (cur == root) { /* we're at "."; add ".." */
809 ffs_make_dirbuf(&dirbuf, "..",
810 cur->parent == NULL ? cur : cur->parent->first,
811 fsopts->needswap);
812 root->inode->nlink++; /* count my parent's link */
813 } else if (cur->child != NULL)
814 root->inode->nlink++; /* count my child's link */
815
816 /*
817 * XXX possibly write file and long symlinks here,
818 * ensuring that blocks get written before inodes?
819 * otoh, this isn't a real filesystem, so who
820 * cares about ordering? :-)
821 */
822 }
823 if (debug & DEBUG_FS_POPULATE_DIRBUF)
824 ffs_dump_dirbuf(&dirbuf, dir, fsopts->needswap);
825
826 /*
827 * pass 2: write out dirbuf, then non-directories at this level
828 */
829 if (debug & DEBUG_FS_POPULATE)
830 printf("ffs_populate_dir: PASS 2 dir %s\n", dir);
831 for (cur = root; cur != NULL; cur = cur->next) {
832 if (cur->inode->flags & FI_WRITTEN)
833 continue; /* skip hard-linked entries */
834 cur->inode->flags |= FI_WRITTEN;
835
836 if (cur->contents == NULL) {
837 if (snprintf(path, sizeof(path), "%s/%s/%s", cur->root,
838 cur->path, cur->name) >= (int)sizeof(path))
839 errx(1, "Pathname too long.");
840 }
841
842 if (cur->child != NULL)
843 continue; /* child creates own inode */
844
845 /* build on-disk inode */
846 if (ffs_opts->version == 1)
847 membuf = ffs_build_dinode1(&din.ffs1_din, &dirbuf, cur,
848 root, fsopts);
849 else
850 membuf = ffs_build_dinode2(&din.ffs2_din, &dirbuf, cur,
851 root, fsopts);
852
853 if (debug & DEBUG_FS_POPULATE_NODE) {
854 printf("ffs_populate_dir: writing ino %d, %s",
855 cur->inode->ino, inode_type(cur->type));
856 if (cur->inode->nlink > 1)
857 printf(", nlink %d", cur->inode->nlink);
858 putchar('\n');
859 }
860
861 if (membuf != NULL) {
862 ffs_write_file(&din, cur->inode->ino, membuf, fsopts);
863 } else if (S_ISREG(cur->type)) {
864 ffs_write_file(&din, cur->inode->ino,
865 (cur->contents) ? cur->contents : path, fsopts);
866 } else {
867 assert (! S_ISDIR(cur->type));
868 ffs_write_inode(&din, cur->inode->ino, fsopts);
869 }
870 }
871
872 /*
873 * pass 3: write out sub-directories
874 */
875 if (debug & DEBUG_FS_POPULATE)
876 printf("ffs_populate_dir: PASS 3 dir %s\n", dir);
877 for (cur = root; cur != NULL; cur = cur->next) {
878 if (cur->child == NULL)
879 continue;
880 if ((size_t)snprintf(path, sizeof(path), "%s/%s", dir,
881 cur->name) >= sizeof(path))
882 errx(1, "Pathname too long.");
883 if (! ffs_populate_dir(path, cur->child, fsopts))
884 return (0);
885 }
886
887 if (debug & DEBUG_FS_POPULATE)
888 printf("ffs_populate_dir: DONE dir %s\n", dir);
889
890 /* cleanup */
891 if (dirbuf.buf != NULL)
892 free(dirbuf.buf);
893 return (1);
894 }
895
896
897 static void
ffs_write_file(union dinode * din,uint32_t ino,void * buf,fsinfo_t * fsopts)898 ffs_write_file(union dinode *din, uint32_t ino, void *buf, fsinfo_t *fsopts)
899 {
900 int isfile, ffd;
901 char *fbuf, *p;
902 off_t bufleft, chunk, offset;
903 ssize_t nread;
904 struct inode in;
905 struct buf * bp;
906 ffs_opt_t *ffs_opts = fsopts->fs_specific;
907 struct vnode vp = { fsopts, NULL };
908
909 assert (din != NULL);
910 assert (buf != NULL);
911 assert (fsopts != NULL);
912 assert (ffs_opts != NULL);
913
914 isfile = S_ISREG(DIP(din, mode));
915 fbuf = NULL;
916 ffd = -1;
917 p = NULL;
918
919 in.i_fs = (struct fs *)fsopts->superblock;
920 in.i_devvp = &vp;
921
922 if (debug & DEBUG_FS_WRITE_FILE) {
923 printf(
924 "ffs_write_file: ino %u, din %p, isfile %d, %s, size %lld",
925 ino, din, isfile, inode_type(DIP(din, mode) & S_IFMT),
926 (long long)DIP(din, size));
927 if (isfile)
928 printf(", file '%s'\n", (char *)buf);
929 else
930 printf(", buffer %p\n", buf);
931 }
932
933 in.i_number = ino;
934 in.i_size = DIP(din, size);
935 if (ffs_opts->version == 1)
936 memcpy(&in.i_din.ffs1_din, &din->ffs1_din,
937 sizeof(in.i_din.ffs1_din));
938 else
939 memcpy(&in.i_din.ffs2_din, &din->ffs2_din,
940 sizeof(in.i_din.ffs2_din));
941
942 if (DIP(din, size) == 0)
943 goto write_inode_and_leave; /* mmm, cheating */
944
945 if (isfile) {
946 fbuf = emalloc(ffs_opts->bsize);
947 if ((ffd = open((char *)buf, O_RDONLY, 0444)) == -1) {
948 err(EXIT_FAILURE, "Can't open `%s' for reading", (char *)buf);
949 }
950 } else {
951 p = buf;
952 }
953
954 chunk = 0;
955 for (bufleft = DIP(din, size); bufleft > 0; bufleft -= chunk) {
956 chunk = MIN(bufleft, ffs_opts->bsize);
957 if (!isfile)
958 ;
959 else if ((nread = read(ffd, fbuf, chunk)) == -1)
960 err(EXIT_FAILURE, "Reading `%s', %lld bytes to go",
961 (char *)buf, (long long)bufleft);
962 else if (nread != chunk)
963 errx(EXIT_FAILURE, "Reading `%s', %lld bytes to go, "
964 "read %zd bytes, expected %ju bytes, does "
965 "metalog size= attribute mismatch source size?",
966 (char *)buf, (long long)bufleft, nread,
967 (uintmax_t)chunk);
968 else
969 p = fbuf;
970 offset = DIP(din, size) - bufleft;
971 if (debug & DEBUG_FS_WRITE_FILE_BLOCK)
972 printf(
973 "ffs_write_file: write %p offset %lld size %lld left %lld\n",
974 p, (long long)offset,
975 (long long)chunk, (long long)bufleft);
976 /*
977 * XXX if holey support is desired, do the check here
978 *
979 * XXX might need to write out last bit in fragroundup
980 * sized chunk. however, ffs_balloc() handles this for us
981 */
982 errno = ffs_balloc(&in, offset, chunk, &bp);
983 bad_ffs_write_file:
984 if (errno != 0)
985 err(1,
986 "Writing inode %d (%s), bytes %lld + %lld",
987 ino,
988 isfile ? (char *)buf :
989 inode_type(DIP(din, mode) & S_IFMT),
990 (long long)offset, (long long)chunk);
991 memcpy(bp->b_data, p, chunk);
992 errno = bwrite(bp);
993 if (errno != 0)
994 goto bad_ffs_write_file;
995 brelse(bp);
996 if (!isfile)
997 p += chunk;
998 }
999
1000 write_inode_and_leave:
1001 ffs_write_inode(&in.i_din, in.i_number, fsopts);
1002 if (fbuf)
1003 free(fbuf);
1004 if (ffd != -1)
1005 close(ffd);
1006 }
1007
1008
1009 static void
ffs_dump_dirbuf(dirbuf_t * dbuf,const char * dir,int needswap)1010 ffs_dump_dirbuf(dirbuf_t *dbuf, const char *dir, int needswap)
1011 {
1012 doff_t i;
1013 struct direct *de;
1014 uint16_t reclen;
1015
1016 assert (dbuf != NULL);
1017 assert (dir != NULL);
1018 printf("ffs_dump_dirbuf: dir %s size %d cur %d\n",
1019 dir, dbuf->size, dbuf->cur);
1020
1021 for (i = 0; i < dbuf->size; ) {
1022 de = (struct direct *)(dbuf->buf + i);
1023 reclen = ufs_rw16(de->d_reclen, needswap);
1024 printf(
1025 " inode %4d %7s offset %4d reclen %3d namlen %3d name %s\n",
1026 ufs_rw32(de->d_ino, needswap),
1027 inode_type(DTTOIF(de->d_type)), i, reclen,
1028 de->d_namlen, de->d_name);
1029 i += reclen;
1030 assert(reclen > 0);
1031 }
1032 }
1033
1034 static void
ffs_make_dirbuf(dirbuf_t * dbuf,const char * name,fsnode * node,int needswap)1035 ffs_make_dirbuf(dirbuf_t *dbuf, const char *name, fsnode *node, int needswap)
1036 {
1037 struct direct de, *dp;
1038 uint16_t llen, reclen;
1039 u_char *newbuf;
1040
1041 assert (dbuf != NULL);
1042 assert (name != NULL);
1043 assert (node != NULL);
1044 /* create direct entry */
1045 (void)memset(&de, 0, sizeof(de));
1046 de.d_ino = ufs_rw32(node->inode->ino, needswap);
1047 de.d_type = IFTODT(node->type);
1048 de.d_namlen = (uint8_t)strlen(name);
1049 strcpy(de.d_name, name);
1050 reclen = DIRSIZ_SWAP(0, &de, needswap);
1051 de.d_reclen = ufs_rw16(reclen, needswap);
1052
1053 dp = (struct direct *)(dbuf->buf + dbuf->cur);
1054 llen = 0;
1055 if (dp != NULL)
1056 llen = DIRSIZ_SWAP(0, dp, needswap);
1057
1058 if (debug & DEBUG_FS_MAKE_DIRBUF)
1059 printf(
1060 "ffs_make_dirbuf: dbuf siz %d cur %d lastlen %d\n"
1061 " ino %d type %d reclen %d namlen %d name %.30s\n",
1062 dbuf->size, dbuf->cur, llen,
1063 ufs_rw32(de.d_ino, needswap), de.d_type, reclen,
1064 de.d_namlen, de.d_name);
1065
1066 if (reclen + dbuf->cur + llen > roundup(dbuf->size, DIRBLKSIZ)) {
1067 if (debug & DEBUG_FS_MAKE_DIRBUF)
1068 printf("ffs_make_dirbuf: growing buf to %d\n",
1069 dbuf->size + DIRBLKSIZ);
1070 newbuf = erealloc(dbuf->buf, dbuf->size + DIRBLKSIZ);
1071 dbuf->buf = newbuf;
1072 dbuf->size += DIRBLKSIZ;
1073 memset(dbuf->buf + dbuf->size - DIRBLKSIZ, 0, DIRBLKSIZ);
1074 dbuf->cur = dbuf->size - DIRBLKSIZ;
1075 } else if (dp) { /* shrink end of previous */
1076 dp->d_reclen = ufs_rw16(llen,needswap);
1077 dbuf->cur += llen;
1078 }
1079 dp = (struct direct *)(dbuf->buf + dbuf->cur);
1080 memcpy(dp, &de, reclen);
1081 dp->d_reclen = ufs_rw16(dbuf->size - dbuf->cur, needswap);
1082 }
1083
1084 /*
1085 * cribbed from sys/ufs/ffs/ffs_alloc.c
1086 */
1087 static void
ffs_write_inode(union dinode * dp,uint32_t ino,const fsinfo_t * fsopts)1088 ffs_write_inode(union dinode *dp, uint32_t ino, const fsinfo_t *fsopts)
1089 {
1090 char *buf;
1091 struct ufs1_dinode *dp1;
1092 struct ufs2_dinode *dp2, *dip;
1093 struct cg *cgp;
1094 struct fs *fs;
1095 int cg, cgino;
1096 uint32_t i;
1097 daddr_t d;
1098 char sbbuf[FFS_MAXBSIZE];
1099 uint32_t initediblk;
1100 ffs_opt_t *ffs_opts = fsopts->fs_specific;
1101
1102 assert (dp != NULL);
1103 assert (ino > 0);
1104 assert (fsopts != NULL);
1105 assert (ffs_opts != NULL);
1106
1107 fs = (struct fs *)fsopts->superblock;
1108 cg = ino_to_cg(fs, ino);
1109 cgino = ino % fs->fs_ipg;
1110 if (debug & DEBUG_FS_WRITE_INODE)
1111 printf("ffs_write_inode: din %p ino %u cg %d cgino %d\n",
1112 dp, ino, cg, cgino);
1113
1114 ffs_rdfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf,
1115 fsopts);
1116 cgp = (struct cg *)sbbuf;
1117 if (!cg_chkmagic_swap(cgp, fsopts->needswap))
1118 errx(1, "ffs_write_inode: cg %d: bad magic number", cg);
1119
1120 assert (isclr(cg_inosused_swap(cgp, fsopts->needswap), cgino));
1121
1122 buf = emalloc(fs->fs_bsize);
1123 dp1 = (struct ufs1_dinode *)buf;
1124 dp2 = (struct ufs2_dinode *)buf;
1125
1126 if (fs->fs_cstotal.cs_nifree == 0)
1127 errx(1, "ffs_write_inode: fs out of inodes for ino %u",
1128 ino);
1129 if (fs->fs_cs(fs, cg).cs_nifree == 0)
1130 errx(1,
1131 "ffs_write_inode: cg %d out of inodes for ino %u",
1132 cg, ino);
1133 setbit(cg_inosused_swap(cgp, fsopts->needswap), cgino);
1134 ufs_add32(cgp->cg_cs.cs_nifree, -1, fsopts->needswap);
1135 fs->fs_cstotal.cs_nifree--;
1136 fs->fs_cs(fs, cg).cs_nifree--;
1137 if (S_ISDIR(DIP(dp, mode))) {
1138 ufs_add32(cgp->cg_cs.cs_ndir, 1, fsopts->needswap);
1139 fs->fs_cstotal.cs_ndir++;
1140 fs->fs_cs(fs, cg).cs_ndir++;
1141 }
1142
1143 /*
1144 * Initialize inode blocks on the fly for UFS2.
1145 */
1146 initediblk = ufs_rw32(cgp->cg_initediblk, fsopts->needswap);
1147 while (ffs_opts->version == 2 && cgino + INOPB(fs) > initediblk &&
1148 initediblk < ufs_rw32(cgp->cg_niblk, fsopts->needswap)) {
1149 memset(buf, 0, fs->fs_bsize);
1150 dip = (struct ufs2_dinode *)buf;
1151 for (i = 0; i < INOPB(fs); i++) {
1152 dip->di_gen = random();
1153 dip++;
1154 }
1155 ffs_wtfs(fsbtodb(fs, ino_to_fsba(fs,
1156 cg * fs->fs_ipg + initediblk)),
1157 fs->fs_bsize, buf, fsopts);
1158 initediblk += INOPB(fs);
1159 cgp->cg_initediblk = ufs_rw32(initediblk, fsopts->needswap);
1160 }
1161
1162
1163 ffs_wtfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf,
1164 fsopts);
1165
1166 /* now write inode */
1167 d = fsbtodb(fs, ino_to_fsba(fs, ino));
1168 ffs_rdfs(d, fs->fs_bsize, buf, fsopts);
1169 if (fsopts->needswap) {
1170 if (ffs_opts->version == 1)
1171 ffs_dinode1_swap(&dp->ffs1_din,
1172 &dp1[ino_to_fsbo(fs, ino)]);
1173 else
1174 ffs_dinode2_swap(&dp->ffs2_din,
1175 &dp2[ino_to_fsbo(fs, ino)]);
1176 } else {
1177 if (ffs_opts->version == 1)
1178 dp1[ino_to_fsbo(fs, ino)] = dp->ffs1_din;
1179 else
1180 dp2[ino_to_fsbo(fs, ino)] = dp->ffs2_din;
1181 }
1182 ffs_wtfs(d, fs->fs_bsize, buf, fsopts);
1183 free(buf);
1184 }
1185
1186 void
panic(const char * fmt,...)1187 panic(const char *fmt, ...)
1188 {
1189 va_list ap;
1190
1191 va_start(ap, fmt);
1192 vwarnx(fmt, ap);
1193 va_end(ap);
1194 exit(1);
1195 }
1196