1 /* $NetBSD: ffs.c,v 1.76 2024/06/17 23:53:42 riastradh 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 #if HAVE_NBTOOL_CONFIG_H
69 #include "nbtool_config.h"
70 #endif
71
72 #include <sys/cdefs.h>
73 #if defined(__RCSID) && !defined(__lint)
74 __RCSID("$NetBSD: ffs.c,v 1.76 2024/06/17 23:53:42 riastradh Exp $");
75 #endif /* !__lint */
76
77 #include <sys/param.h>
78
79 #if !HAVE_NBTOOL_CONFIG_H
80 #include <sys/mount.h>
81 #endif
82
83 #include <assert.h>
84 #include <errno.h>
85 #include <fcntl.h>
86 #include <stdarg.h>
87 #include <stdio.h>
88 #include <stdlib.h>
89 #include <string.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 #include <ufs/ufs/ufs_bswap.h>
104
105 #include "ffs/ufs_inode.h"
106 #include "ffs/newfs_extern.h"
107 #include "ffs/ffs_extern.h"
108
109 #undef DIP
110 #define DIP(dp, field) \
111 ((ffs_opts->version == 1) ? \
112 (dp)->ffs1_din.di_##field : (dp)->ffs2_din.di_##field)
113
114 /*
115 * Various file system defaults (cribbed from newfs(8)).
116 */
117 #define DFL_FRAGSIZE 1024 /* fragment size */
118 #define DFL_BLKSIZE 8192 /* block size */
119 #define DFL_SECSIZE 512 /* sector size */
120 #define DFL_CYLSPERGROUP 65536 /* cylinders per group */
121 #define DFL_FRAGSPERINODE 4 /* fragments per inode */
122 #define DFL_ROTDELAY 0 /* rotational delay */
123 #define DFL_NRPOS 1 /* rotational positions */
124 #define DFL_RPM 3600 /* rpm of disk */
125 #define DFL_NSECTORS 64 /* # of sectors */
126 #define DFL_NTRACKS 16 /* # of tracks */
127
128
129 typedef struct {
130 u_char *buf; /* buf for directory */
131 doff_t size; /* full size of buf */
132 doff_t cur; /* offset of current entry */
133 } dirbuf_t;
134
135
136 static int ffs_create_image(const char *, fsinfo_t *);
137 static void ffs_dump_fsinfo(fsinfo_t *);
138 static void ffs_dump_dirbuf(dirbuf_t *, const char *, int);
139 static void ffs_make_dirbuf(dirbuf_t *, const char *, fsnode *, int);
140 static int ffs_populate_dir(const char *, fsnode *, fsinfo_t *);
141 static void ffs_size_dir(fsnode *, fsinfo_t *);
142 static void ffs_validate(const char *, fsnode *, fsinfo_t *);
143 static void ffs_write_file(union dinode *, uint32_t, void *, fsinfo_t *);
144 static void ffs_write_inode(union dinode *, uint32_t, const fsinfo_t *);
145 static void *ffs_build_dinode1(struct ufs1_dinode *, dirbuf_t *, fsnode *,
146 fsnode *, fsinfo_t *);
147 static void *ffs_build_dinode2(struct ufs2_dinode *, dirbuf_t *, fsnode *,
148 fsnode *, fsinfo_t *);
149
150
151
152 /* publicly visible functions */
153 void
ffs_prep_opts(fsinfo_t * fsopts)154 ffs_prep_opts(fsinfo_t *fsopts)
155 {
156 ffs_opt_t *ffs_opts = ecalloc(1, sizeof(*ffs_opts));
157
158 const option_t ffs_options[] = {
159 { 'b', "bsize", &ffs_opts->bsize, OPT_INT32,
160 1, INT_MAX, "block size" },
161 { 'f', "fsize", &ffs_opts->fsize, OPT_INT32,
162 1, INT_MAX, "fragment size" },
163 { 'd', "density", &ffs_opts->density, OPT_INT32,
164 1, INT_MAX, "bytes per inode" },
165 { 'm', "minfree", &ffs_opts->minfree, OPT_INT32,
166 0, 99, "minfree" },
167 { 'M', "maxbpg", &ffs_opts->maxbpg, OPT_INT32,
168 1, INT_MAX, "max blocks per file in a cg" },
169 { 'a', "avgfilesize", &ffs_opts->avgfilesize, OPT_INT32,
170 1, INT_MAX, "expected average file size" },
171 { 'n', "avgfpdir", &ffs_opts->avgfpdir, OPT_INT32,
172 1, INT_MAX, "expected # of files per directory" },
173 { 'x', "extent", &ffs_opts->maxbsize, OPT_INT32,
174 1, INT_MAX, "maximum # extent size" },
175 { 'g', "maxbpcg", &ffs_opts->maxblkspercg, OPT_INT32,
176 1, INT_MAX, "max # of blocks per group" },
177 { 'v', "version", &ffs_opts->version, OPT_INT32,
178 1, 2, "UFS version" },
179 { 'o', "optimization", NULL, OPT_STRBUF,
180 0, 0, "Optimization (time|space)" },
181 { 'l', "label", ffs_opts->label, OPT_STRARRAY,
182 1, sizeof(ffs_opts->label), "UFS label" },
183 { 'e', "extattr", &ffs_opts->extattr, OPT_INT32,
184 0, 1, "extattr support" },
185 { .name = NULL }
186 };
187
188 ffs_opts->bsize= -1;
189 ffs_opts->fsize= -1;
190 ffs_opts->cpg= -1;
191 ffs_opts->density= -1;
192 ffs_opts->minfree= -1;
193 ffs_opts->optimization= -1;
194 ffs_opts->maxcontig= -1;
195 ffs_opts->maxbpg= -1;
196 ffs_opts->avgfilesize= -1;
197 ffs_opts->avgfpdir= -1;
198 ffs_opts->version = 1;
199 ffs_opts->extattr = 1;
200
201 fsopts->fs_specific = ffs_opts;
202 fsopts->fs_options = copy_opts(ffs_options);
203 }
204
205 void
ffs_cleanup_opts(fsinfo_t * fsopts)206 ffs_cleanup_opts(fsinfo_t *fsopts)
207 {
208 free(fsopts->fs_specific);
209 free(fsopts->fs_options);
210 }
211
212 int
ffs_parse_opts(const char * option,fsinfo_t * fsopts)213 ffs_parse_opts(const char *option, fsinfo_t *fsopts)
214 {
215 ffs_opt_t *ffs_opts = fsopts->fs_specific;
216 option_t *ffs_options = fsopts->fs_options;
217 char buf[1024];
218
219 int rv;
220
221 assert(option != NULL);
222 assert(fsopts != NULL);
223 assert(ffs_opts != NULL);
224
225 if (debug & DEBUG_FS_PARSE_OPTS)
226 printf("ffs_parse_opts: got `%s'\n", option);
227
228 rv = set_option(ffs_options, option, buf, sizeof(buf));
229 if (rv == -1)
230 return 0;
231
232 if (ffs_options[rv].name == NULL)
233 abort();
234
235 switch (ffs_options[rv].letter) {
236 case 'o':
237 if (strcmp(buf, "time") == 0) {
238 ffs_opts->optimization = FS_OPTTIME;
239 } else if (strcmp(buf, "space") == 0) {
240 ffs_opts->optimization = FS_OPTSPACE;
241 } else {
242 warnx("Invalid optimization `%s'", buf);
243 return 0;
244 }
245 break;
246 default:
247 break;
248 }
249 return 1;
250 }
251
252
253 void
ffs_makefs(const char * image,const char * dir,fsnode * root,fsinfo_t * fsopts)254 ffs_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts)
255 {
256 struct fs *superblock;
257 struct timeval start;
258
259 assert(image != NULL);
260 assert(dir != NULL);
261 assert(root != NULL);
262 assert(fsopts != NULL);
263
264 if (debug & DEBUG_FS_MAKEFS)
265 printf("ffs_makefs: image %s directory %s root %p\n",
266 image, dir, root);
267
268 /* validate tree and options */
269 TIMER_START(start);
270 ffs_validate(dir, root, fsopts);
271 TIMER_RESULTS(start, "ffs_validate");
272
273 printf("Calculated size of `%s': %lld bytes, %lld inodes\n",
274 image, (long long)fsopts->size, (long long)fsopts->inodes);
275
276 /* create image */
277 TIMER_START(start);
278 if (ffs_create_image(image, fsopts) == -1)
279 errx(EXIT_FAILURE, "Image file `%s' not created.", image);
280 TIMER_RESULTS(start, "ffs_create_image");
281
282 fsopts->curinode = UFS_ROOTINO;
283
284 if (debug & DEBUG_FS_MAKEFS)
285 putchar('\n');
286
287 /* populate image */
288 printf("Populating `%s'\n", image);
289 TIMER_START(start);
290 if (! ffs_populate_dir(dir, root, fsopts))
291 errx(EXIT_FAILURE, "Image file `%s' not populated.", image);
292 TIMER_RESULTS(start, "ffs_populate_dir");
293
294 /* ensure no outstanding buffers remain */
295 if (debug & DEBUG_FS_MAKEFS)
296 bcleanup();
297
298 /* update various superblock parameters */
299 superblock = fsopts->superblock;
300 superblock->fs_fmod = 0;
301 superblock->fs_old_cstotal.cs_ndir = superblock->fs_cstotal.cs_ndir;
302 superblock->fs_old_cstotal.cs_nbfree = superblock->fs_cstotal.cs_nbfree;
303 superblock->fs_old_cstotal.cs_nifree = superblock->fs_cstotal.cs_nifree;
304 superblock->fs_old_cstotal.cs_nffree = superblock->fs_cstotal.cs_nffree;
305
306 /* write out superblock; image is now complete */
307 ffs_write_superblock(fsopts->superblock, fsopts);
308 if (close(fsopts->fd) == -1)
309 err(EXIT_FAILURE, "Closing `%s'", image);
310 fsopts->fd = -1;
311 printf("Image `%s' complete\n", image);
312 }
313
314 /* end of public functions */
315
316
317 static void
ffs_validate(const char * dir,fsnode * root,fsinfo_t * fsopts)318 ffs_validate(const char *dir, fsnode *root, fsinfo_t *fsopts)
319 {
320 int32_t ncg = 1;
321 #if notyet
322 int32_t spc, nspf, ncyl, fssize;
323 #endif
324 ffs_opt_t *ffs_opts = fsopts->fs_specific;
325
326 assert(dir != NULL);
327 assert(root != NULL);
328 assert(fsopts != NULL);
329 assert(ffs_opts != NULL);
330
331 if (debug & DEBUG_FS_VALIDATE) {
332 printf("ffs_validate: before defaults set:\n");
333 ffs_dump_fsinfo(fsopts);
334 }
335
336 /* set FFS defaults */
337 if (fsopts->sectorsize == -1)
338 fsopts->sectorsize = DFL_SECSIZE;
339 if (ffs_opts->fsize == -1)
340 ffs_opts->fsize = MAX(DFL_FRAGSIZE, fsopts->sectorsize);
341 if (ffs_opts->bsize == -1)
342 ffs_opts->bsize = MIN(DFL_BLKSIZE, 8 * ffs_opts->fsize);
343 if (ffs_opts->cpg == -1)
344 ffs_opts->cpg = DFL_CYLSPERGROUP;
345 else
346 ffs_opts->cpgflg = 1;
347 /* fsopts->density is set below */
348 if (ffs_opts->nsectors == -1)
349 ffs_opts->nsectors = DFL_NSECTORS;
350 if (ffs_opts->minfree == -1)
351 ffs_opts->minfree = MINFREE;
352 if (ffs_opts->optimization == -1)
353 ffs_opts->optimization = DEFAULTOPT;
354 if (ffs_opts->maxcontig == -1)
355 ffs_opts->maxcontig =
356 MAX(1, MIN(MAXPHYS, FFS_MAXBSIZE) / ffs_opts->bsize);
357 /* XXX ondisk32 */
358 if (ffs_opts->maxbpg == -1)
359 ffs_opts->maxbpg = ffs_opts->bsize / sizeof(int32_t);
360 if (ffs_opts->avgfilesize == -1)
361 ffs_opts->avgfilesize = AVFILESIZ;
362 if (ffs_opts->avgfpdir == -1)
363 ffs_opts->avgfpdir = AFPDIR;
364
365 /* calculate size of tree */
366 ffs_size_dir(root, fsopts);
367 fsopts->inodes += UFS_ROOTINO; /* include first two inodes */
368
369 if (debug & DEBUG_FS_VALIDATE)
370 printf("ffs_validate: size of tree: %lld bytes, %lld inodes\n",
371 (long long)fsopts->size, (long long)fsopts->inodes);
372
373 /* add requested slop */
374 fsopts->size += fsopts->freeblocks;
375 fsopts->inodes += fsopts->freefiles;
376 if (fsopts->freefilepc > 0)
377 fsopts->inodes =
378 fsopts->inodes * (100 + fsopts->freefilepc) / 100;
379 if (fsopts->freeblockpc > 0)
380 fsopts->size =
381 fsopts->size * (100 + fsopts->freeblockpc) / 100;
382
383 /* add space needed for superblocks */
384 /*
385 * The old SBOFF (SBLOCK_UFS1) is used here because makefs is
386 * typically used for small filesystems where space matters.
387 * XXX make this an option.
388 */
389 fsopts->size += (SBLOCK_UFS1 + SBLOCKSIZE) * ncg;
390 /* add space needed to store inodes, x3 for blockmaps, etc */
391 if (ffs_opts->version == 1)
392 fsopts->size += ncg * DINODE1_SIZE *
393 roundup(fsopts->inodes / ncg,
394 ffs_opts->bsize / DINODE1_SIZE);
395 else
396 fsopts->size += ncg * DINODE2_SIZE *
397 roundup(fsopts->inodes / ncg,
398 ffs_opts->bsize / DINODE2_SIZE);
399
400 /* add minfree */
401 if (ffs_opts->minfree > 0)
402 fsopts->size =
403 fsopts->size * (100 + ffs_opts->minfree) / 100;
404 /*
405 * XXX any other fs slop to add, such as csum's, bitmaps, etc ??
406 */
407
408 if (fsopts->size < fsopts->minsize) /* ensure meets minimum size */
409 fsopts->size = fsopts->minsize;
410
411 /* round up to the next block */
412 fsopts->size = roundup(fsopts->size, ffs_opts->bsize);
413
414 /* calculate density if necessary */
415 if (ffs_opts->density == -1)
416 ffs_opts->density = fsopts->size / fsopts->inodes + 1;
417
418 if (debug & DEBUG_FS_VALIDATE) {
419 printf("ffs_validate: after defaults set:\n");
420 ffs_dump_fsinfo(fsopts);
421 printf("ffs_validate: dir %s; %lld bytes, %lld inodes\n",
422 dir, (long long)fsopts->size, (long long)fsopts->inodes);
423 }
424 /* now check calculated sizes vs requested sizes */
425 if (fsopts->maxsize > 0 && fsopts->size > fsopts->maxsize) {
426 errx(EXIT_FAILURE,
427 "`%s' size of %lld is larger than the maxsize of %lld.",
428 dir, (long long)fsopts->size, (long long)fsopts->maxsize);
429 }
430 }
431
432
433 static void
ffs_dump_fsinfo(fsinfo_t * f)434 ffs_dump_fsinfo(fsinfo_t *f)
435 {
436
437 ffs_opt_t *fs = f->fs_specific;
438
439 printf("fsopts at %p\n", f);
440
441 printf("\tsize %lld, inodes %lld, curinode %u\n",
442 (long long)f->size, (long long)f->inodes, f->curinode);
443
444 printf("\tminsize %lld, maxsize %lld\n",
445 (long long)f->minsize, (long long)f->maxsize);
446 printf("\tfree files %lld, freefile %% %d\n",
447 (long long)f->freefiles, f->freefilepc);
448 printf("\tfree blocks %lld, freeblock %% %d\n",
449 (long long)f->freeblocks, f->freeblockpc);
450 printf("\tneedswap %d, sectorsize %d\n", f->needswap, f->sectorsize);
451
452 printf("\tbsize %d, fsize %d, cpg %d, density %d\n",
453 fs->bsize, fs->fsize, fs->cpg, fs->density);
454 printf("\tnsectors %d, rpm %d, minfree %d\n",
455 fs->nsectors, fs->rpm, fs->minfree);
456 printf("\tmaxcontig %d, maxbpg %d\n",
457 fs->maxcontig, fs->maxbpg);
458 printf("\toptimization %s\n",
459 fs->optimization == FS_OPTSPACE ? "space" : "time");
460 }
461
462
463 static int
ffs_create_image(const char * image,fsinfo_t * fsopts)464 ffs_create_image(const char *image, fsinfo_t *fsopts)
465 {
466 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
467 struct statvfs sfs;
468 #endif
469 struct fs *fs;
470 char *buf;
471 int i, bufsize;
472 off_t bufrem;
473 time_t tstamp;
474 int oflags = O_RDWR | O_CREAT;
475
476 assert (image != NULL);
477 assert (fsopts != NULL);
478
479 /* create image */
480 if (fsopts->offset == 0)
481 oflags |= O_TRUNC;
482 if ((fsopts->fd = open(image, oflags, 0666)) == -1) {
483 warn("Can't open `%s' for writing", image);
484 return (-1);
485 }
486
487 /* zero image */
488 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
489 if (fstatvfs(fsopts->fd, &sfs) == -1) {
490 #endif
491 bufsize = 8192;
492 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
493 warn("can't fstatvfs `%s', using default %d byte chunk",
494 image, bufsize);
495 } else
496 bufsize = sfs.f_iosize;
497 #endif
498 bufrem = fsopts->size;
499
500 if (fsopts->sparse) {
501 if (ftruncate(fsopts->fd, bufrem) == -1) {
502 printf ("ERROR in truncate. Sparse option disabled\n");
503 fsopts->sparse = 0;
504 } else {
505 bufrem = 0; /* File truncated at bufrem. Remaining is 0 */
506 buf = NULL;
507 }
508 }
509
510 if (fsopts->offset != 0)
511 if (lseek(fsopts->fd, fsopts->offset, SEEK_SET) == -1) {
512 warn("can't seek");
513 return -1;
514 }
515
516 if ((debug & DEBUG_FS_CREATE_IMAGE) && fsopts->sparse == 0)
517 printf(
518 "zero-ing image `%s', %lld sectors, using %d byte chunks\n",
519 image, (long long)bufrem, bufsize);
520 if (bufrem > 0)
521 buf = ecalloc(1, bufsize);
522 while (bufrem > 0) {
523 i = write(fsopts->fd, buf, MIN(bufsize, bufrem));
524 if (i == -1) {
525 warn("zeroing image, %lld bytes to go",
526 (long long)bufrem);
527 free(buf);
528 return (-1);
529 }
530 bufrem -= i;
531 }
532 if (buf)
533 free(buf);
534
535 /* make the file system */
536 if (debug & DEBUG_FS_CREATE_IMAGE)
537 printf("calling mkfs(\"%s\", ...)\n", image);
538
539 if (stampst.st_ino)
540 tstamp = stampst.st_ctime;
541 else
542 tstamp = start_time.tv_sec;
543
544 srandom(tstamp);
545
546 fs = ffs_mkfs(image, fsopts, tstamp);
547 fsopts->superblock = (void *)fs;
548 if (debug & DEBUG_FS_CREATE_IMAGE) {
549 time_t t;
550
551 t = (time_t)((struct fs *)fsopts->superblock)->fs_time;
552 printf("mkfs returned %p; fs_time %s",
553 fsopts->superblock, ctime(&t));
554 printf("fs totals: nbfree %lld, nffree %lld, nifree %lld, ndir %lld\n",
555 (long long)fs->fs_cstotal.cs_nbfree,
556 (long long)fs->fs_cstotal.cs_nffree,
557 (long long)fs->fs_cstotal.cs_nifree,
558 (long long)fs->fs_cstotal.cs_ndir);
559 }
560
561 if ((off_t)(fs->fs_cstotal.cs_nifree + UFS_ROOTINO) < fsopts->inodes) {
562 warnx(
563 "Image file `%s' has %lld free inodes; %lld are required.",
564 image,
565 (long long)(fs->fs_cstotal.cs_nifree + UFS_ROOTINO),
566 (long long)fsopts->inodes);
567 return (-1);
568 }
569 return (fsopts->fd);
570 }
571
572
573 static void
ffs_size_dir(fsnode * root,fsinfo_t * fsopts)574 ffs_size_dir(fsnode *root, fsinfo_t *fsopts)
575 {
576 struct direct tmpdir;
577 fsnode * node;
578 int curdirsize, this;
579 ffs_opt_t *ffs_opts = fsopts->fs_specific;
580
581 /* node may be NULL (empty directory) */
582 assert(fsopts != NULL);
583 assert(ffs_opts != NULL);
584
585 if (debug & DEBUG_FS_SIZE_DIR)
586 printf("ffs_size_dir: entry: bytes %lld inodes %lld\n",
587 (long long)fsopts->size, (long long)fsopts->inodes);
588
589 #define ADDDIRENT(e) do { \
590 tmpdir.d_namlen = strlen((e)); \
591 this = UFS_DIRSIZ(0, &tmpdir, 0); \
592 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \
593 printf("ADDDIRENT: was: %s (%d) this %d cur %d\n", \
594 e, tmpdir.d_namlen, this, curdirsize); \
595 if (this + curdirsize > roundup(curdirsize, UFS_DIRBLKSIZ)) \
596 curdirsize = roundup(curdirsize, UFS_DIRBLKSIZ); \
597 curdirsize += this; \
598 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \
599 printf("ADDDIRENT: now: %s (%d) this %d cur %d\n", \
600 e, tmpdir.d_namlen, this, curdirsize); \
601 } while (0);
602
603 /*
604 * XXX this needs to take into account extra space consumed
605 * by indirect blocks, etc.
606 */
607 #define ADDSIZE(x) do { \
608 fsopts->size += roundup((x), ffs_opts->fsize); \
609 } while (0);
610
611 curdirsize = 0;
612 for (node = root; node != NULL; node = node->next) {
613 ADDDIRENT(node->name);
614 if (node == root) { /* we're at "." */
615 assert(strcmp(node->name, ".") == 0);
616 ADDDIRENT("..");
617 } else if ((node->inode->flags & FI_SIZED) == 0) {
618 /* don't count duplicate names */
619 node->inode->flags |= FI_SIZED;
620 if (debug & DEBUG_FS_SIZE_DIR_NODE)
621 printf("ffs_size_dir: `%s' size %lld\n",
622 node->name,
623 (long long)node->inode->st.st_size);
624 fsopts->inodes++;
625 if (node->type == S_IFREG)
626 ADDSIZE(node->inode->st.st_size);
627 if (node->type == S_IFLNK) {
628 size_t slen;
629
630 slen = strlen(node->symlink) + 1;
631 if (slen >= (ffs_opts->version == 1 ?
632 UFS1_MAXSYMLINKLEN :
633 UFS2_MAXSYMLINKLEN))
634 ADDSIZE(slen);
635 }
636 }
637 if (node->type == S_IFDIR)
638 ffs_size_dir(node->child, fsopts);
639 }
640 ADDSIZE(curdirsize);
641
642 if (debug & DEBUG_FS_SIZE_DIR)
643 printf("ffs_size_dir: exit: size %lld inodes %lld\n",
644 (long long)fsopts->size, (long long)fsopts->inodes);
645 }
646
647 static void *
ffs_build_dinode1(struct ufs1_dinode * dinp,dirbuf_t * dbufp,fsnode * cur,fsnode * root,fsinfo_t * fsopts)648 ffs_build_dinode1(struct ufs1_dinode *dinp, dirbuf_t *dbufp, fsnode *cur,
649 fsnode *root, fsinfo_t *fsopts)
650 {
651 size_t slen;
652 void *membuf;
653 struct stat *st = stampst.st_ino ? &stampst : &cur->inode->st;
654
655 memset(dinp, 0, sizeof(*dinp));
656 dinp->di_mode = cur->inode->st.st_mode;
657 dinp->di_nlink = cur->inode->nlink;
658 dinp->di_size = cur->inode->st.st_size;
659 #if HAVE_STRUCT_STAT_ST_FLAGS
660 dinp->di_flags = cur->inode->st.st_flags;
661 #endif
662 #if HAVE_STRUCT_STAT_ST_GEN
663 dinp->di_gen = cur->inode->st.st_gen;
664 #endif
665 dinp->di_uid = cur->inode->st.st_uid;
666 dinp->di_gid = cur->inode->st.st_gid;
667
668 dinp->di_atime = st->st_atime;
669 dinp->di_mtime = st->st_mtime;
670 dinp->di_ctime = st->st_ctime;
671 #if HAVE_STRUCT_STAT_ST_MTIMENSEC
672 dinp->di_atimensec = st->st_atimensec;
673 dinp->di_mtimensec = st->st_mtimensec;
674 dinp->di_ctimensec = st->st_ctimensec;
675 #endif
676 /* not set: di_db, di_ib, di_blocks, di_spare */
677
678 membuf = NULL;
679 if (cur == root) { /* "."; write dirbuf */
680 membuf = dbufp->buf;
681 dinp->di_size = dbufp->size;
682 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) {
683 dinp->di_size = 0; /* a device */
684 dinp->di_rdev =
685 ufs_rw32(cur->inode->st.st_rdev, fsopts->needswap);
686 } else if (S_ISLNK(cur->type)) { /* symlink */
687 slen = strlen(cur->symlink);
688 if (slen < UFS1_MAXSYMLINKLEN) { /* short link */
689 memcpy(dinp->di_db, cur->symlink, slen);
690 } else
691 membuf = cur->symlink;
692 dinp->di_size = slen;
693 }
694 return membuf;
695 }
696
697 static void *
ffs_build_dinode2(struct ufs2_dinode * dinp,dirbuf_t * dbufp,fsnode * cur,fsnode * root,fsinfo_t * fsopts)698 ffs_build_dinode2(struct ufs2_dinode *dinp, dirbuf_t *dbufp, fsnode *cur,
699 fsnode *root, fsinfo_t *fsopts)
700 {
701 size_t slen;
702 void *membuf;
703 struct stat *st = stampst.st_ino ? &stampst : &cur->inode->st;
704
705 memset(dinp, 0, sizeof(*dinp));
706 dinp->di_mode = cur->inode->st.st_mode;
707 dinp->di_nlink = cur->inode->nlink;
708 dinp->di_size = cur->inode->st.st_size;
709 #if HAVE_STRUCT_STAT_ST_FLAGS
710 dinp->di_flags = cur->inode->st.st_flags;
711 #endif
712 #if HAVE_STRUCT_STAT_ST_GEN
713 dinp->di_gen = cur->inode->st.st_gen;
714 #endif
715 dinp->di_uid = cur->inode->st.st_uid;
716 dinp->di_gid = cur->inode->st.st_gid;
717
718 dinp->di_atime = st->st_atime;
719 dinp->di_mtime = st->st_mtime;
720 dinp->di_ctime = st->st_ctime;
721 #if HAVE_STRUCT_STAT_ST_MTIMENSEC
722 dinp->di_atimensec = st->st_atimensec;
723 dinp->di_mtimensec = st->st_mtimensec;
724 dinp->di_ctimensec = st->st_ctimensec;
725 #endif
726 #if HAVE_STRUCT_STAT_BIRTHTIME
727 dinp->di_birthtime = st->st_birthtime;
728 dinp->di_birthnsec = st->st_birthtimensec;
729 #endif
730 /* not set: di_db, di_ib, di_blocks, di_spare */
731
732 membuf = NULL;
733 if (cur == root) { /* "."; write dirbuf */
734 membuf = dbufp->buf;
735 dinp->di_size = dbufp->size;
736 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) {
737 dinp->di_size = 0; /* a device */
738 dinp->di_rdev =
739 ufs_rw64(cur->inode->st.st_rdev, fsopts->needswap);
740 } else if (S_ISLNK(cur->type)) { /* symlink */
741 slen = strlen(cur->symlink);
742 if (slen < UFS2_MAXSYMLINKLEN) { /* short link */
743 memcpy(dinp->di_db, cur->symlink, slen);
744 } else
745 membuf = cur->symlink;
746 dinp->di_size = slen;
747 }
748 return membuf;
749 }
750
751 static int
ffs_populate_dir(const char * dir,fsnode * root,fsinfo_t * fsopts)752 ffs_populate_dir(const char *dir, fsnode *root, fsinfo_t *fsopts)
753 {
754 fsnode *cur;
755 dirbuf_t dirbuf;
756 union dinode din;
757 void *membuf;
758 char path[MAXPATHLEN + 1];
759 ffs_opt_t *ffs_opts = fsopts->fs_specific;
760
761 assert(dir != NULL);
762 assert(root != NULL);
763 assert(fsopts != NULL);
764 assert(ffs_opts != NULL);
765
766 (void)memset(&dirbuf, 0, sizeof(dirbuf));
767
768 if (debug & DEBUG_FS_POPULATE)
769 printf("ffs_populate_dir: PASS 1 dir %s node %p\n", dir, root);
770
771 /*
772 * pass 1: allocate inode numbers, build directory `file'
773 */
774 for (cur = root; cur != NULL; cur = cur->next) {
775 if ((cur->inode->flags & FI_ALLOCATED) == 0) {
776 cur->inode->flags |= FI_ALLOCATED;
777 if (cur == root && cur->parent != NULL)
778 cur->inode->ino = cur->parent->inode->ino;
779 else {
780 cur->inode->ino = fsopts->curinode;
781 fsopts->curinode++;
782 }
783 }
784 ffs_make_dirbuf(&dirbuf, cur->name, cur, fsopts->needswap);
785 if (cur == root) { /* we're at "."; add ".." */
786 ffs_make_dirbuf(&dirbuf, "..",
787 cur->parent == NULL ? cur : cur->parent->first,
788 fsopts->needswap);
789 root->inode->nlink++; /* count my parent's link */
790 } else if (cur->child != NULL)
791 root->inode->nlink++; /* count my child's link */
792
793 /*
794 * XXX possibly write file and long symlinks here,
795 * ensuring that blocks get written before inodes?
796 * otoh, this isn't a real filesystem, so who
797 * cares about ordering? :-)
798 */
799 }
800 if (debug & DEBUG_FS_POPULATE_DIRBUF)
801 ffs_dump_dirbuf(&dirbuf, dir, fsopts->needswap);
802
803 /*
804 * pass 2: write out dirbuf, then non-directories at this level
805 */
806 if (debug & DEBUG_FS_POPULATE)
807 printf("ffs_populate_dir: PASS 2 dir %s\n", dir);
808 for (cur = root; cur != NULL; cur = cur->next) {
809 if (cur->inode->flags & FI_WRITTEN)
810 continue; /* skip hard-linked entries */
811 cur->inode->flags |= FI_WRITTEN;
812
813 if ((size_t)snprintf(path, sizeof(path), "%s/%s/%s", cur->root,
814 cur->path, cur->name) >= sizeof(path))
815 errx(EXIT_FAILURE, "Pathname too long.");
816
817 if (cur->child != NULL)
818 continue; /* child creates own inode */
819
820 /* build on-disk inode */
821 if (ffs_opts->version == 1)
822 membuf = ffs_build_dinode1(&din.ffs1_din, &dirbuf, cur,
823 root, fsopts);
824 else
825 membuf = ffs_build_dinode2(&din.ffs2_din, &dirbuf, cur,
826 root, fsopts);
827
828 if (debug & DEBUG_FS_POPULATE_NODE) {
829 printf("ffs_populate_dir: writing ino %lld, %s",
830 (long long)cur->inode->ino, inode_type(cur->type));
831 if (cur->inode->nlink > 1)
832 printf(", nlink %d", cur->inode->nlink);
833 putchar('\n');
834 }
835
836 if (membuf != NULL) {
837 ffs_write_file(&din, cur->inode->ino, membuf, fsopts);
838 } else if (S_ISREG(cur->type)) {
839 ffs_write_file(&din, cur->inode->ino, path, fsopts);
840 } else {
841 assert (! S_ISDIR(cur->type));
842 ffs_write_inode(&din, cur->inode->ino, fsopts);
843 }
844 }
845
846 /*
847 * pass 3: write out sub-directories
848 */
849 if (debug & DEBUG_FS_POPULATE)
850 printf("ffs_populate_dir: PASS 3 dir %s\n", dir);
851 for (cur = root; cur != NULL; cur = cur->next) {
852 if (cur->child == NULL)
853 continue;
854 if ((size_t)snprintf(path, sizeof(path), "%s/%s", dir,
855 cur->name) >= sizeof(path))
856 errx(EXIT_FAILURE, "Pathname too long.");
857 if (! ffs_populate_dir(path, cur->child, fsopts))
858 return (0);
859 }
860
861 if (debug & DEBUG_FS_POPULATE)
862 printf("ffs_populate_dir: DONE dir %s\n", dir);
863
864 /* cleanup */
865 if (dirbuf.buf != NULL)
866 free(dirbuf.buf);
867 return (1);
868 }
869
870
871 static void
ffs_write_file(union dinode * din,uint32_t ino,void * buf,fsinfo_t * fsopts)872 ffs_write_file(union dinode *din, uint32_t ino, void *buf, fsinfo_t *fsopts)
873 {
874 int isfile, ffd;
875 char *fbuf, *p;
876 off_t bufleft, chunk, offset;
877 ssize_t nread;
878 struct inode in;
879 struct buf * bp;
880 ffs_opt_t *ffs_opts = fsopts->fs_specific;
881 struct vnode vp = { fsopts, NULL };
882
883 assert (din != NULL);
884 assert (buf != NULL);
885 assert (fsopts != NULL);
886 assert (ffs_opts != NULL);
887
888 isfile = S_ISREG(DIP(din, mode));
889 fbuf = NULL;
890 ffd = -1;
891 p = NULL;
892
893 in.i_fs = (struct fs *)fsopts->superblock;
894 in.i_devvp = &vp;
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
916 if (DIP(din, size) == 0)
917 goto write_inode_and_leave; /* mmm, cheating */
918
919 if (isfile) {
920 fbuf = emalloc(ffs_opts->bsize);
921 if ((ffd = open((char *)buf, O_RDONLY, 0444)) == -1) {
922 warn("Can't open `%s' for reading", (char *)buf);
923 goto leave_ffs_write_file;
924 }
925 } else {
926 p = buf;
927 }
928
929 chunk = 0;
930 for (bufleft = DIP(din, size); bufleft > 0; bufleft -= chunk) {
931 chunk = MIN(bufleft, ffs_opts->bsize);
932 if (!isfile)
933 ;
934 else if ((nread = read(ffd, fbuf, chunk)) == -1)
935 err(EXIT_FAILURE, "Reading `%s', %lld bytes to go",
936 (char *)buf, (long long)bufleft);
937 else if (nread != chunk)
938 errx(EXIT_FAILURE, "Reading `%s', %lld bytes to go, "
939 "read %zd bytes, expected %ju bytes, does "
940 "metalog size= attribute mismatch source size?",
941 (char *)buf, (long long)bufleft, nread,
942 (uintmax_t)chunk);
943 else
944 p = fbuf;
945 offset = DIP(din, size) - bufleft;
946 if (debug & DEBUG_FS_WRITE_FILE_BLOCK)
947 printf(
948 "ffs_write_file: write %p offset %lld size %lld left %lld\n",
949 p, (long long)offset,
950 (long long)chunk, (long long)bufleft);
951 /*
952 * XXX if holey support is desired, do the check here
953 *
954 * XXX might need to write out last bit in fragroundup
955 * sized chunk. however, ffs_balloc() handles this for us
956 */
957 errno = ffs_balloc(&in, offset, chunk, &bp);
958 bad_ffs_write_file:
959 if (errno != 0)
960 err(EXIT_FAILURE,
961 "Writing inode %d (%s), bytes %lld + %lld",
962 ino,
963 isfile ? (char *)buf :
964 inode_type(DIP(din, mode) & S_IFMT),
965 (long long)offset, (long long)chunk);
966 memcpy(bp->b_data, p, chunk);
967 errno = bwrite(bp);
968 if (errno != 0)
969 goto bad_ffs_write_file;
970 if (!isfile)
971 p += chunk;
972 }
973
974 write_inode_and_leave:
975 ffs_write_inode(&in.i_din, in.i_number, fsopts);
976
977 leave_ffs_write_file:
978 if (fbuf)
979 free(fbuf);
980 if (ffd != -1)
981 close(ffd);
982 }
983
984
985 static void
ffs_dump_dirbuf(dirbuf_t * dbuf,const char * dir,int needswap)986 ffs_dump_dirbuf(dirbuf_t *dbuf, const char *dir, int needswap)
987 {
988 doff_t i;
989 struct direct *de;
990 uint16_t reclen;
991
992 assert (dbuf != NULL);
993 assert (dir != NULL);
994 printf("ffs_dump_dirbuf: dir %s size %d cur %d\n",
995 dir, dbuf->size, dbuf->cur);
996
997 for (i = 0; i < dbuf->size; ) {
998 de = (struct direct *)(dbuf->buf + i);
999 reclen = ufs_rw16(de->d_reclen, needswap);
1000 printf(
1001 " inode %4d %7s offset %4d reclen %3d namlen %3d name %s\n",
1002 ufs_rw32(de->d_fileno, needswap),
1003 inode_type(DTTOIF(de->d_type)), i, reclen,
1004 de->d_namlen, de->d_name);
1005 i += reclen;
1006 assert(reclen > 0);
1007 }
1008 }
1009
1010 static void
ffs_make_dirbuf(dirbuf_t * dbuf,const char * name,fsnode * node,int needswap)1011 ffs_make_dirbuf(dirbuf_t *dbuf, const char *name, fsnode *node, int needswap)
1012 {
1013 struct direct de, *dp;
1014 uint16_t llen, reclen;
1015 u_char *newbuf;
1016
1017 assert (dbuf != NULL);
1018 assert (name != NULL);
1019 assert (node != NULL);
1020 /* create direct entry */
1021 (void)memset(&de, 0, sizeof(de));
1022 de.d_fileno = ufs_rw32(node->inode->ino, needswap);
1023 de.d_type = IFTODT(node->type);
1024 de.d_namlen = (uint8_t)strlen(name);
1025 strcpy(de.d_name, name);
1026 reclen = UFS_DIRSIZ(0, &de, needswap);
1027 de.d_reclen = ufs_rw16(reclen, needswap);
1028
1029 dp = (struct direct *)(dbuf->buf + dbuf->cur);
1030 llen = 0;
1031 if (dp != NULL)
1032 llen = UFS_DIRSIZ(0, dp, needswap);
1033
1034 if (debug & DEBUG_FS_MAKE_DIRBUF)
1035 printf(
1036 "ffs_make_dirbuf: dbuf siz %d cur %d lastlen %d\n"
1037 " ino %d type %d reclen %d namlen %d name %.30s\n",
1038 dbuf->size, dbuf->cur, llen,
1039 ufs_rw32(de.d_fileno, needswap), de.d_type, reclen,
1040 de.d_namlen, de.d_name);
1041
1042 if (reclen + dbuf->cur + llen > roundup(dbuf->size, UFS_DIRBLKSIZ)) {
1043 if (debug & DEBUG_FS_MAKE_DIRBUF)
1044 printf("ffs_make_dirbuf: growing buf to %d\n",
1045 dbuf->size + UFS_DIRBLKSIZ);
1046 newbuf = erealloc(dbuf->buf, dbuf->size + UFS_DIRBLKSIZ);
1047 dbuf->buf = newbuf;
1048 dbuf->size += UFS_DIRBLKSIZ;
1049 memset(dbuf->buf + dbuf->size - UFS_DIRBLKSIZ, 0, UFS_DIRBLKSIZ);
1050 dbuf->cur = dbuf->size - UFS_DIRBLKSIZ;
1051 } else if (dp) { /* shrink end of previous */
1052 dp->d_reclen = ufs_rw16(llen,needswap);
1053 dbuf->cur += llen;
1054 }
1055 dp = (struct direct *)(dbuf->buf + dbuf->cur);
1056 memcpy(dp, &de, reclen);
1057 dp->d_reclen = ufs_rw16(dbuf->size - dbuf->cur, needswap);
1058 }
1059
1060 /*
1061 * cribbed from sys/ufs/ffs/ffs_alloc.c
1062 */
1063 static void
ffs_write_inode(union dinode * dp,uint32_t ino,const fsinfo_t * fsopts)1064 ffs_write_inode(union dinode *dp, uint32_t ino, const fsinfo_t *fsopts)
1065 {
1066 char *buf;
1067 struct ufs1_dinode *dp1;
1068 struct ufs2_dinode *dp2, *dip;
1069 struct cg *cgp;
1070 struct fs *fs;
1071 uint32_t cg, cgino, i;
1072 daddr_t d;
1073 char sbbuf[FFS_MAXBSIZE];
1074 uint32_t initediblk;
1075 ffs_opt_t *ffs_opts = fsopts->fs_specific;
1076
1077 assert (dp != NULL);
1078 assert (ino > 0);
1079 assert (fsopts != NULL);
1080 assert (ffs_opts != NULL);
1081
1082 fs = (struct fs *)fsopts->superblock;
1083 cg = ino_to_cg(fs, ino);
1084 cgino = ino % fs->fs_ipg;
1085 if (debug & DEBUG_FS_WRITE_INODE)
1086 printf("ffs_write_inode: din %p ino %u cg %d cgino %d\n",
1087 dp, ino, cg, cgino);
1088
1089 ffs_rdfs(FFS_FSBTODB(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf,
1090 fsopts);
1091 cgp = (struct cg *)sbbuf;
1092 if (!cg_chkmagic(cgp, fsopts->needswap))
1093 errx(EXIT_FAILURE,
1094 "ffs_write_inode: cg %d: bad magic number", cg);
1095
1096 assert (isclr(cg_inosused(cgp, fsopts->needswap), cgino));
1097
1098 buf = emalloc(fs->fs_bsize);
1099 dp1 = (struct ufs1_dinode *)buf;
1100 dp2 = (struct ufs2_dinode *)buf;
1101
1102 if (fs->fs_cstotal.cs_nifree == 0)
1103 errx(EXIT_FAILURE,
1104 "ffs_write_inode: fs out of inodes for ino %u", ino);
1105 if (fs->fs_cs(fs, cg).cs_nifree == 0)
1106 errx(EXIT_FAILURE,
1107 "ffs_write_inode: cg %d out of inodes for ino %u",
1108 cg, ino);
1109 setbit(cg_inosused(cgp, fsopts->needswap), cgino);
1110 ufs_add32(cgp->cg_cs.cs_nifree, -1, fsopts->needswap);
1111 fs->fs_cstotal.cs_nifree--;
1112 fs->fs_cs(fs, cg).cs_nifree--;
1113 if (S_ISDIR(DIP(dp, mode))) {
1114 ufs_add32(cgp->cg_cs.cs_ndir, 1, fsopts->needswap);
1115 fs->fs_cstotal.cs_ndir++;
1116 fs->fs_cs(fs, cg).cs_ndir++;
1117 }
1118
1119 /*
1120 * Initialize inode blocks on the fly for UFS2.
1121 */
1122 initediblk = ufs_rw32(cgp->cg_initediblk, fsopts->needswap);
1123 while (ffs_opts->version == 2 &&
1124 (uint32_t)(cgino + FFS_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 < FFS_INOPB(fs); i++) {
1129 dip->di_gen = random() / 2 + 1;
1130 dip++;
1131 }
1132 ffs_wtfs(FFS_FSBTODB(fs, ino_to_fsba(fs,
1133 cg * fs->fs_ipg + initediblk)),
1134 fs->fs_bsize, buf, fsopts);
1135 initediblk += FFS_INOPB(fs);
1136 cgp->cg_initediblk = ufs_rw32(initediblk, fsopts->needswap);
1137 }
1138
1139
1140 ffs_wtfs(FFS_FSBTODB(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf,
1141 fsopts);
1142
1143 /* now write inode */
1144 d = FFS_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
1163 void
panic(const char * fmt,...)1164 panic(const char *fmt, ...)
1165 {
1166 va_list ap;
1167
1168 va_start(ap, fmt);
1169 vwarnx(fmt, ap);
1170 va_end(ap);
1171 exit(EXIT_FAILURE);
1172 }
1173