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 #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 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
92 #include <sys/statvfs.h>
93 #endif
94
95 #include <ufs/ufs/dinode.h>
96 #include <ufs/ufs/dir.h>
97 #include <ufs/ffs/fs.h>
98
99 #include "ffs/ufs_bswap.h"
100 #include "ffs/ufs_inode.h"
101 #include "ffs/newfs_extern.h"
102 #include "ffs/ffs_extern.h"
103
104 #undef clrbuf
105 #include "makefs.h"
106 #include "ffs.h"
107
108 #undef DIP
109 #define DIP(dp, field) \
110 ((ffs_opts->version == 1) ? \
111 (dp)->ffs1_din.di_##field : (dp)->ffs2_din.di_##field)
112
113 /*
114 * Various file system defaults (cribbed from newfs(8)).
115 */
116 #define DFL_FRAGSIZE 4096 /* fragment size */
117 #define DFL_BLKSIZE 32768 /* block size */
118 #define DFL_SECSIZE 512 /* sector size */
119 #define DFL_CYLSPERGROUP 65536 /* cylinders per group */
120 #define DFL_FRAGSPERINODE 4 /* fragments per inode */
121 #define DFL_ROTDELAY 0 /* rotational delay */
122 #define DFL_NRPOS 1 /* rotational positions */
123 #define DFL_RPM 3600 /* rpm of disk */
124 #define DFL_NSECTORS 64 /* # of sectors */
125 #define DFL_NTRACKS 16 /* # of tracks */
126
127
128 typedef struct {
129 u_char *buf; /* buf for directory */
130 doff_t size; /* full size of buf */
131 doff_t cur; /* offset of current entry */
132 } dirbuf_t;
133
134
135 static int ffs_create_image(const char *, fsinfo_t *);
136 static void ffs_dump_fsinfo(fsinfo_t *);
137 static void ffs_dump_dirbuf(dirbuf_t *, const char *, int);
138 static void ffs_make_dirbuf(dirbuf_t *, const char *, fsnode *, int);
139 static int ffs_populate_dir(const char *, fsnode *, fsinfo_t *);
140 static void ffs_size_dir(fsnode *, fsinfo_t *);
141 static void ffs_validate(const char *, fsnode *, fsinfo_t *);
142 static void ffs_write_file(union dinode *, uint32_t, void *, fsinfo_t *);
143 static void ffs_write_inode(union dinode *, uint32_t, const fsinfo_t *);
144 static void *ffs_build_dinode1(struct ufs1_dinode *, dirbuf_t *, fsnode *,
145 fsnode *, fsinfo_t *);
146 static void *ffs_build_dinode2(struct ufs2_dinode *, dirbuf_t *, fsnode *,
147 fsnode *, fsinfo_t *);
148
149
150 /* publicly visible functions */
151
152 void
ffs_prep_opts(fsinfo_t * fsopts)153 ffs_prep_opts(fsinfo_t *fsopts)
154 {
155 ffs_opt_t *ffs_opts = ecalloc(1, sizeof(*ffs_opts));
156
157 const option_t ffs_options[] = {
158 { 'b', "bsize", &ffs_opts->bsize, OPT_INT32,
159 1, INT_MAX, "block size" },
160 { 'f', "fsize", &ffs_opts->fsize, OPT_INT32,
161 1, INT_MAX, "fragment size" },
162 { 'd', "density", &ffs_opts->density, OPT_INT32,
163 1, INT_MAX, "bytes per inode" },
164 { 'm', "minfree", &ffs_opts->minfree, OPT_INT32,
165 0, 99, "minfree" },
166 { 'M', "maxbpg", &ffs_opts->maxbpg, OPT_INT32,
167 1, INT_MAX, "max blocks per file in a cg" },
168 { 'a', "avgfilesize", &ffs_opts->avgfilesize, OPT_INT32,
169 1, INT_MAX, "expected average file size" },
170 { 'n', "avgfpdir", &ffs_opts->avgfpdir, OPT_INT32,
171 1, INT_MAX, "expected # of files per directory" },
172 { 'x', "extent", &ffs_opts->maxbsize, OPT_INT32,
173 1, INT_MAX, "maximum # extent size" },
174 { 'g', "maxbpcg", &ffs_opts->maxblkspercg, OPT_INT32,
175 1, INT_MAX, "max # of blocks per group" },
176 { 'v', "version", &ffs_opts->version, OPT_INT32,
177 1, 2, "UFS version" },
178 { 'o', "optimization", NULL, OPT_STRBUF,
179 0, 0, "Optimization (time|space)" },
180 { 'l', "label", ffs_opts->label, OPT_STRARRAY,
181 1, sizeof(ffs_opts->label), "UFS label" },
182 { 's', "softupdates", &ffs_opts->softupdates, OPT_INT32,
183 0, 1, "enable softupdates" },
184 { .name = NULL }
185 };
186
187 ffs_opts->bsize= -1;
188 ffs_opts->fsize= -1;
189 ffs_opts->cpg= -1;
190 ffs_opts->density= -1;
191 ffs_opts->min_inodes= false;
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->softupdates = 0;
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 /* if user wants no free space, use minimum number of inodes */
269 if (fsopts->minsize == 0 && fsopts->freeblockpc == 0 &&
270 fsopts->freeblocks == 0)
271 ((ffs_opt_t *)fsopts->fs_specific)->min_inodes = true;
272
273 /* validate tree and options */
274 TIMER_START(start);
275 ffs_validate(dir, root, fsopts);
276 TIMER_RESULTS(start, "ffs_validate");
277
278 printf("Calculated size of `%s': %lld bytes, %lld inodes\n",
279 image, (long long)fsopts->size, (long long)fsopts->inodes);
280
281 /* create image */
282 TIMER_START(start);
283 if (ffs_create_image(image, fsopts) == -1)
284 errx(1, "Image file `%s' not created.", image);
285 TIMER_RESULTS(start, "ffs_create_image");
286
287 fsopts->curinode = UFS_ROOTINO;
288
289 if (debug & DEBUG_FS_MAKEFS)
290 putchar('\n');
291
292 /* populate image */
293 printf("Populating `%s'\n", image);
294 TIMER_START(start);
295 if (! ffs_populate_dir(dir, root, fsopts))
296 errx(1, "Image file `%s' not populated.", image);
297 TIMER_RESULTS(start, "ffs_populate_dir");
298
299 /* ensure no outstanding buffers remain */
300 if (debug & DEBUG_FS_MAKEFS)
301 bcleanup();
302
303 /* update various superblock parameters */
304 superblock = fsopts->superblock;
305 superblock->fs_fmod = 0;
306 superblock->fs_old_cstotal.cs_ndir = superblock->fs_cstotal.cs_ndir;
307 superblock->fs_old_cstotal.cs_nbfree = superblock->fs_cstotal.cs_nbfree;
308 superblock->fs_old_cstotal.cs_nifree = superblock->fs_cstotal.cs_nifree;
309 superblock->fs_old_cstotal.cs_nffree = superblock->fs_cstotal.cs_nffree;
310
311 /* write out superblock; image is now complete */
312 ffs_write_superblock(fsopts->superblock, fsopts);
313 if (close(fsopts->fd) == -1)
314 err(1, "Closing `%s'", image);
315 fsopts->fd = -1;
316 printf("Image `%s' complete\n", image);
317 }
318
319 /* end of public functions */
320
321
322 static void
ffs_validate(const char * dir,fsnode * root,fsinfo_t * fsopts)323 ffs_validate(const char *dir, fsnode *root, fsinfo_t *fsopts)
324 {
325 #ifdef notyet
326 int32_t spc, nspf, ncyl, fssize;
327 #endif
328 ffs_opt_t *ffs_opts = fsopts->fs_specific;
329
330 assert(dir != NULL);
331 assert(root != NULL);
332 assert(fsopts != NULL);
333 assert(ffs_opts != NULL);
334
335 if (debug & DEBUG_FS_VALIDATE) {
336 printf("ffs_validate: before defaults set:\n");
337 ffs_dump_fsinfo(fsopts);
338 }
339
340 /* set FFS defaults */
341 if (fsopts->sectorsize == -1)
342 fsopts->sectorsize = DFL_SECSIZE;
343 if (fsopts->sectorsize != DFL_SECSIZE)
344 warnx("sectorsize %d may produce nonfunctional image",
345 fsopts->sectorsize);
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 /*
399 * Add space needed for superblock, cylblock and to store inodes.
400 * All of those segments are aligned to the block size.
401 * XXX: This has to match calculations done in ffs_mkfs.
402 */
403 if (ffs_opts->version == 1) {
404 fsopts->size +=
405 roundup(SBLOCK_UFS1 + SBLOCKSIZE, ffs_opts->bsize);
406 fsopts->size += roundup(SBLOCKSIZE, ffs_opts->bsize);
407 fsopts->size += ffs_opts->bsize;
408 fsopts->size += DINODE1_SIZE *
409 roundup(fsopts->inodes, ffs_opts->bsize / DINODE1_SIZE);
410 } else {
411 fsopts->size +=
412 roundup(SBLOCK_UFS2 + SBLOCKSIZE, ffs_opts->bsize);
413 fsopts->size += roundup(SBLOCKSIZE, ffs_opts->bsize);
414 fsopts->size += ffs_opts->bsize;
415 fsopts->size += DINODE2_SIZE *
416 roundup(fsopts->inodes, ffs_opts->bsize / DINODE2_SIZE);
417 }
418
419 /* add minfree */
420 if (ffs_opts->minfree > 0)
421 fsopts->size =
422 fsopts->size * (100 + ffs_opts->minfree) / 100;
423 /*
424 * XXX any other fs slop to add, such as csum's, bitmaps, etc ??
425 */
426
427 if (fsopts->size < fsopts->minsize) /* ensure meets minimum size */
428 fsopts->size = fsopts->minsize;
429
430 /* round up to the next block */
431 fsopts->size = roundup(fsopts->size, ffs_opts->bsize);
432
433 /* round up to requested block size, if any */
434 if (fsopts->roundup > 0)
435 fsopts->size = roundup(fsopts->size, fsopts->roundup);
436
437 /* calculate density to just fit inodes if no free space */
438 if (ffs_opts->density == -1)
439 ffs_opts->density = fsopts->size / fsopts->inodes + 1;
440
441 if (debug & DEBUG_FS_VALIDATE) {
442 printf("ffs_validate: after defaults set:\n");
443 ffs_dump_fsinfo(fsopts);
444 printf("ffs_validate: dir %s; %lld bytes, %lld inodes\n",
445 dir, (long long)fsopts->size, (long long)fsopts->inodes);
446 }
447 /* now check calculated sizes vs requested sizes */
448 if (fsopts->maxsize > 0 && fsopts->size > fsopts->maxsize) {
449 errx(1, "`%s' size of %lld is larger than the maxsize of %lld.",
450 dir, (long long)fsopts->size, (long long)fsopts->maxsize);
451 }
452 }
453
454
455 static void
ffs_dump_fsinfo(fsinfo_t * f)456 ffs_dump_fsinfo(fsinfo_t *f)
457 {
458
459 ffs_opt_t *fs = f->fs_specific;
460
461 printf("fsopts at %p\n", f);
462
463 printf("\tsize %lld, inodes %lld, curinode %u\n",
464 (long long)f->size, (long long)f->inodes, f->curinode);
465
466 printf("\tminsize %lld, maxsize %lld\n",
467 (long long)f->minsize, (long long)f->maxsize);
468 printf("\tfree files %lld, freefile %% %d\n",
469 (long long)f->freefiles, f->freefilepc);
470 printf("\tfree blocks %lld, freeblock %% %d\n",
471 (long long)f->freeblocks, f->freeblockpc);
472 printf("\tneedswap %d, sectorsize %d\n", f->needswap, f->sectorsize);
473
474 printf("\tbsize %d, fsize %d, cpg %d, density %d\n",
475 fs->bsize, fs->fsize, fs->cpg, fs->density);
476 printf("\tnsectors %d, rpm %d, minfree %d\n",
477 fs->nsectors, fs->rpm, fs->minfree);
478 printf("\tmaxcontig %d, maxbpg %d\n",
479 fs->maxcontig, fs->maxbpg);
480 printf("\toptimization %s\n",
481 fs->optimization == FS_OPTSPACE ? "space" : "time");
482 }
483
484
485 static int
ffs_create_image(const char * image,fsinfo_t * fsopts)486 ffs_create_image(const char *image, fsinfo_t *fsopts)
487 {
488 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
489 struct statvfs sfs;
490 #endif
491 struct fs *fs;
492 char *buf;
493 int i, bufsize;
494 off_t bufrem;
495 int oflags = O_RDWR | O_CREAT;
496 time_t tstamp;
497
498 assert (image != NULL);
499 assert (fsopts != NULL);
500
501 /* create image */
502 if (fsopts->offset == 0)
503 oflags |= O_TRUNC;
504 if ((fsopts->fd = open(image, oflags, 0666)) == -1) {
505 warn("Can't open `%s' for writing", image);
506 return (-1);
507 }
508
509 /* zero image */
510 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
511 if (fstatvfs(fsopts->fd, &sfs) == -1) {
512 #endif
513 bufsize = 8192;
514 #if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
515 warn("can't fstatvfs `%s', using default %d byte chunk",
516 image, bufsize);
517 } else
518 bufsize = sfs.f_iosize;
519 #endif
520 bufrem = fsopts->size;
521 if (fsopts->sparse) {
522 if (ftruncate(fsopts->fd, bufrem) == -1) {
523 warn("sparse option disabled.");
524 fsopts->sparse = 0;
525 }
526 }
527 if (fsopts->sparse) {
528 /* File truncated at bufrem. Remaining is 0 */
529 bufrem = 0;
530 buf = NULL;
531 } else {
532 if (debug & DEBUG_FS_CREATE_IMAGE)
533 printf("zero-ing image `%s', %lld sectors, "
534 "using %d byte chunks\n", image, (long long)bufrem,
535 bufsize);
536 buf = ecalloc(1, bufsize);
537 }
538
539 if (fsopts->offset != 0)
540 if (lseek(fsopts->fd, fsopts->offset, SEEK_SET) == -1) {
541 warn("can't seek");
542 free(buf);
543 return -1;
544 }
545
546 while (bufrem > 0) {
547 i = write(fsopts->fd, buf, MIN(bufsize, bufrem));
548 if (i == -1) {
549 warn("zeroing image, %lld bytes to go",
550 (long long)bufrem);
551 free(buf);
552 return (-1);
553 }
554 bufrem -= i;
555 }
556 if (buf)
557 free(buf);
558
559 /* make the file system */
560 if (debug & DEBUG_FS_CREATE_IMAGE)
561 printf("calling mkfs(\"%s\", ...)\n", image);
562
563 if (stampst.st_ino != 0)
564 tstamp = stampst.st_ctime;
565 else
566 tstamp = start_time.tv_sec;
567
568 srandom(tstamp);
569
570 fs = ffs_mkfs(image, fsopts, tstamp);
571 fsopts->superblock = (void *)fs;
572 if (debug & DEBUG_FS_CREATE_IMAGE) {
573 time_t t;
574
575 t = (time_t)((struct fs *)fsopts->superblock)->fs_time;
576 printf("mkfs returned %p; fs_time %s",
577 fsopts->superblock, ctime(&t));
578 printf("fs totals: nbfree %lld, nffree %lld, nifree %lld, ndir %lld\n",
579 (long long)fs->fs_cstotal.cs_nbfree,
580 (long long)fs->fs_cstotal.cs_nffree,
581 (long long)fs->fs_cstotal.cs_nifree,
582 (long long)fs->fs_cstotal.cs_ndir);
583 }
584
585 if (fs->fs_cstotal.cs_nifree + (off_t)UFS_ROOTINO < fsopts->inodes) {
586 warnx(
587 "Image file `%s' has %lld free inodes; %lld are required.",
588 image,
589 (long long)(fs->fs_cstotal.cs_nifree + UFS_ROOTINO),
590 (long long)fsopts->inodes);
591 return (-1);
592 }
593 return (fsopts->fd);
594 }
595
596
597 static void
ffs_size_dir(fsnode * root,fsinfo_t * fsopts)598 ffs_size_dir(fsnode *root, fsinfo_t *fsopts)
599 {
600 struct direct tmpdir;
601 fsnode * node;
602 int curdirsize, this;
603 ffs_opt_t *ffs_opts = fsopts->fs_specific;
604
605 /* node may be NULL (empty directory) */
606 assert(fsopts != NULL);
607 assert(ffs_opts != NULL);
608
609 if (debug & DEBUG_FS_SIZE_DIR)
610 printf("ffs_size_dir: entry: bytes %lld inodes %lld\n",
611 (long long)fsopts->size, (long long)fsopts->inodes);
612
613 #define ADDDIRENT(e) do { \
614 tmpdir.d_namlen = strlen((e)); \
615 this = DIRSIZ_SWAP(0, &tmpdir, 0); \
616 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \
617 printf("ADDDIRENT: was: %s (%d) this %d cur %d\n", \
618 e, tmpdir.d_namlen, this, curdirsize); \
619 if (this + curdirsize > roundup(curdirsize, DIRBLKSIZ)) \
620 curdirsize = roundup(curdirsize, DIRBLKSIZ); \
621 curdirsize += this; \
622 if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \
623 printf("ADDDIRENT: now: %s (%d) this %d cur %d\n", \
624 e, tmpdir.d_namlen, this, curdirsize); \
625 } while (0);
626
627 #define ADDSIZE(x) do { \
628 if ((size_t)(x) < UFS_NDADDR * (size_t)ffs_opts->bsize) { \
629 fsopts->size += roundup((x), ffs_opts->fsize); \
630 } else { \
631 /* Count space consumed by indirecttion blocks. */ \
632 fsopts->size += ffs_opts->bsize * \
633 (howmany((x), UFS_NDADDR * ffs_opts->bsize) - 1); \
634 /* \
635 * If the file is big enough to use indirect blocks, \
636 * we allocate bsize block for trailing data. \
637 */ \
638 fsopts->size += roundup((x), ffs_opts->bsize); \
639 } \
640 } while (0);
641
642 curdirsize = 0;
643 for (node = root; node != NULL; node = node->next) {
644 ADDDIRENT(node->name);
645 if (node == root) { /* we're at "." */
646 assert(strcmp(node->name, ".") == 0);
647 ADDDIRENT("..");
648 } else if ((node->inode->flags & FI_SIZED) == 0) {
649 /* don't count duplicate names */
650 node->inode->flags |= FI_SIZED;
651 if (debug & DEBUG_FS_SIZE_DIR_NODE)
652 printf("ffs_size_dir: `%s' size %lld\n",
653 node->name,
654 (long long)node->inode->st.st_size);
655 fsopts->inodes++;
656 if (node->type == S_IFREG)
657 ADDSIZE(node->inode->st.st_size);
658 if (node->type == S_IFLNK) {
659 size_t slen;
660
661 slen = strlen(node->symlink) + 1;
662 if (slen >= (ffs_opts->version == 1 ?
663 UFS1_MAXSYMLINKLEN :
664 UFS2_MAXSYMLINKLEN))
665 ADDSIZE(slen);
666 }
667 }
668 if (node->type == S_IFDIR)
669 ffs_size_dir(node->child, fsopts);
670 }
671 ADDSIZE(curdirsize);
672
673 if (debug & DEBUG_FS_SIZE_DIR)
674 printf("ffs_size_dir: exit: size %lld inodes %lld\n",
675 (long long)fsopts->size, (long long)fsopts->inodes);
676 }
677
678 static void *
ffs_build_dinode1(struct ufs1_dinode * dinp,dirbuf_t * dbufp,fsnode * cur,fsnode * root,fsinfo_t * fsopts)679 ffs_build_dinode1(struct ufs1_dinode *dinp, dirbuf_t *dbufp, fsnode *cur,
680 fsnode *root, fsinfo_t *fsopts)
681 {
682 size_t slen;
683 void *membuf;
684 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st;
685
686 memset(dinp, 0, sizeof(*dinp));
687 dinp->di_mode = cur->inode->st.st_mode;
688 dinp->di_nlink = cur->inode->nlink;
689 dinp->di_size = cur->inode->st.st_size;
690 #if HAVE_STRUCT_STAT_ST_FLAGS
691 dinp->di_flags = cur->inode->st.st_flags;
692 #endif
693 dinp->di_gen = random();
694 dinp->di_uid = cur->inode->st.st_uid;
695 dinp->di_gid = cur->inode->st.st_gid;
696
697 dinp->di_atime = st->st_atime;
698 dinp->di_mtime = st->st_mtime;
699 dinp->di_ctime = st->st_ctime;
700 #if HAVE_STRUCT_STAT_ST_MTIMENSEC
701 dinp->di_atimensec = st->st_atimensec;
702 dinp->di_mtimensec = st->st_mtimensec;
703 dinp->di_ctimensec = st->st_ctimensec;
704 #endif
705 /* not set: di_db, di_ib, di_blocks, di_spare */
706
707 membuf = NULL;
708 if (cur == root) { /* "."; write dirbuf */
709 membuf = dbufp->buf;
710 dinp->di_size = dbufp->size;
711 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) {
712 dinp->di_size = 0; /* a device */
713 dinp->di_rdev =
714 ufs_rw32(cur->inode->st.st_rdev, fsopts->needswap);
715 } else if (S_ISLNK(cur->type)) { /* symlink */
716 slen = strlen(cur->symlink);
717 if (slen < UFS1_MAXSYMLINKLEN) { /* short link */
718 memcpy(dinp->di_shortlink, cur->symlink, slen);
719 } else
720 membuf = cur->symlink;
721 dinp->di_size = slen;
722 }
723 return membuf;
724 }
725
726 static void *
ffs_build_dinode2(struct ufs2_dinode * dinp,dirbuf_t * dbufp,fsnode * cur,fsnode * root,fsinfo_t * fsopts)727 ffs_build_dinode2(struct ufs2_dinode *dinp, dirbuf_t *dbufp, fsnode *cur,
728 fsnode *root, fsinfo_t *fsopts)
729 {
730 size_t slen;
731 void *membuf;
732 struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st;
733
734 memset(dinp, 0, sizeof(*dinp));
735 dinp->di_mode = cur->inode->st.st_mode;
736 dinp->di_nlink = cur->inode->nlink;
737 dinp->di_size = cur->inode->st.st_size;
738 #if HAVE_STRUCT_STAT_ST_FLAGS
739 dinp->di_flags = cur->inode->st.st_flags;
740 #endif
741 dinp->di_gen = random();
742 dinp->di_uid = cur->inode->st.st_uid;
743 dinp->di_gid = cur->inode->st.st_gid;
744
745 dinp->di_atime = st->st_atime;
746 dinp->di_mtime = st->st_mtime;
747 dinp->di_ctime = st->st_ctime;
748 #if HAVE_STRUCT_STAT_BIRTHTIME
749 dinp->di_birthtime = st->st_birthtime;
750 #else
751 dinp->di_birthtime = st->st_ctime;
752 #endif
753 #if HAVE_STRUCT_STAT_ST_MTIMENSEC
754 dinp->di_atimensec = st->st_atimensec;
755 dinp->di_mtimensec = st->st_mtimensec;
756 dinp->di_ctimensec = st->st_ctimensec;
757 #if HAVE_STRUCT_STAT_BIRTHTIME
758 dinp->di_birthnsec = st->st_birthtimensec;
759 #else
760 dinp->di_birthnsec = st->st_ctimensec;
761 #endif
762 #endif
763
764 /* not set: di_db, di_ib, di_blocks, di_spare */
765
766 membuf = NULL;
767 if (cur == root) { /* "."; write dirbuf */
768 membuf = dbufp->buf;
769 dinp->di_size = dbufp->size;
770 } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) {
771 dinp->di_size = 0; /* a device */
772 dinp->di_rdev =
773 ufs_rw64(cur->inode->st.st_rdev, fsopts->needswap);
774 } else if (S_ISLNK(cur->type)) { /* symlink */
775 slen = strlen(cur->symlink);
776 if (slen < UFS2_MAXSYMLINKLEN) { /* short link */
777 memcpy(dinp->di_shortlink, cur->symlink, slen);
778 } else
779 membuf = cur->symlink;
780 dinp->di_size = slen;
781 }
782 return membuf;
783 }
784
785 static int
ffs_populate_dir(const char * dir,fsnode * root,fsinfo_t * fsopts)786 ffs_populate_dir(const char *dir, fsnode *root, fsinfo_t *fsopts)
787 {
788 fsnode *cur;
789 dirbuf_t dirbuf;
790 union dinode din;
791 void *membuf;
792 char path[MAXPATHLEN + 1];
793 ffs_opt_t *ffs_opts = fsopts->fs_specific;
794
795 assert(dir != NULL);
796 assert(root != NULL);
797 assert(fsopts != NULL);
798 assert(ffs_opts != NULL);
799
800 (void)memset(&dirbuf, 0, sizeof(dirbuf));
801
802 if (debug & DEBUG_FS_POPULATE)
803 printf("ffs_populate_dir: PASS 1 dir %s node %p\n", dir, root);
804
805 /*
806 * pass 1: allocate inode numbers, build directory `file'
807 */
808 for (cur = root; cur != NULL; cur = cur->next) {
809 if ((cur->inode->flags & FI_ALLOCATED) == 0) {
810 cur->inode->flags |= FI_ALLOCATED;
811 if (cur == root && cur->parent != NULL)
812 cur->inode->ino = cur->parent->inode->ino;
813 else {
814 cur->inode->ino = fsopts->curinode;
815 fsopts->curinode++;
816 }
817 }
818 ffs_make_dirbuf(&dirbuf, cur->name, cur, fsopts->needswap);
819 if (cur == root) { /* we're at "."; add ".." */
820 ffs_make_dirbuf(&dirbuf, "..",
821 cur->parent == NULL ? cur : cur->parent->first,
822 fsopts->needswap);
823 root->inode->nlink++; /* count my parent's link */
824 } else if (cur->child != NULL)
825 root->inode->nlink++; /* count my child's link */
826
827 /*
828 * XXX possibly write file and long symlinks here,
829 * ensuring that blocks get written before inodes?
830 * otoh, this isn't a real filesystem, so who
831 * cares about ordering? :-)
832 */
833 }
834 if (debug & DEBUG_FS_POPULATE_DIRBUF)
835 ffs_dump_dirbuf(&dirbuf, dir, fsopts->needswap);
836
837 /*
838 * pass 2: write out dirbuf, then non-directories at this level
839 */
840 if (debug & DEBUG_FS_POPULATE)
841 printf("ffs_populate_dir: PASS 2 dir %s\n", dir);
842 for (cur = root; cur != NULL; cur = cur->next) {
843 if (cur->inode->flags & FI_WRITTEN)
844 continue; /* skip hard-linked entries */
845 cur->inode->flags |= FI_WRITTEN;
846
847 if (cur->contents == NULL) {
848 if (snprintf(path, sizeof(path), "%s/%s/%s", cur->root,
849 cur->path, cur->name) >= (int)sizeof(path))
850 errx(1, "Pathname too long.");
851 }
852
853 if (cur->child != NULL)
854 continue; /* child creates own inode */
855
856 /* build on-disk inode */
857 if (ffs_opts->version == 1)
858 membuf = ffs_build_dinode1(&din.ffs1_din, &dirbuf, cur,
859 root, fsopts);
860 else
861 membuf = ffs_build_dinode2(&din.ffs2_din, &dirbuf, cur,
862 root, fsopts);
863
864 if (debug & DEBUG_FS_POPULATE_NODE) {
865 printf("ffs_populate_dir: writing ino %d, %s",
866 cur->inode->ino, inode_type(cur->type));
867 if (cur->inode->nlink > 1)
868 printf(", nlink %d", cur->inode->nlink);
869 putchar('\n');
870 }
871
872 if (membuf != NULL) {
873 ffs_write_file(&din, cur->inode->ino, membuf, fsopts);
874 } else if (S_ISREG(cur->type)) {
875 ffs_write_file(&din, cur->inode->ino,
876 (cur->contents) ? cur->contents : path, fsopts);
877 } else {
878 assert (! S_ISDIR(cur->type));
879 ffs_write_inode(&din, cur->inode->ino, fsopts);
880 }
881 }
882
883 /*
884 * pass 3: write out sub-directories
885 */
886 if (debug & DEBUG_FS_POPULATE)
887 printf("ffs_populate_dir: PASS 3 dir %s\n", dir);
888 for (cur = root; cur != NULL; cur = cur->next) {
889 if (cur->child == NULL)
890 continue;
891 if ((size_t)snprintf(path, sizeof(path), "%s/%s", dir,
892 cur->name) >= sizeof(path))
893 errx(1, "Pathname too long.");
894 if (! ffs_populate_dir(path, cur->child, fsopts))
895 return (0);
896 }
897
898 if (debug & DEBUG_FS_POPULATE)
899 printf("ffs_populate_dir: DONE dir %s\n", dir);
900
901 /* cleanup */
902 if (dirbuf.buf != NULL)
903 free(dirbuf.buf);
904 return (1);
905 }
906
907
908 static void
ffs_write_file(union dinode * din,uint32_t ino,void * buf,fsinfo_t * fsopts)909 ffs_write_file(union dinode *din, uint32_t ino, void *buf, fsinfo_t *fsopts)
910 {
911 int isfile, ffd;
912 char *fbuf, *p;
913 off_t bufleft, chunk, offset;
914 ssize_t nread;
915 struct inode in;
916 struct m_buf * bp;
917 ffs_opt_t *ffs_opts = fsopts->fs_specific;
918 struct m_vnode vp = { fsopts, NULL };
919
920 assert (din != NULL);
921 assert (buf != NULL);
922 assert (fsopts != NULL);
923 assert (ffs_opts != NULL);
924
925 isfile = S_ISREG(DIP(din, mode));
926 fbuf = NULL;
927 ffd = -1;
928 p = NULL;
929
930 in.i_fs = (struct fs *)fsopts->superblock;
931 in.i_devvp = (void *)&vp;
932
933 if (debug & DEBUG_FS_WRITE_FILE) {
934 printf(
935 "ffs_write_file: ino %u, din %p, isfile %d, %s, size %lld",
936 ino, din, isfile, inode_type(DIP(din, mode) & S_IFMT),
937 (long long)DIP(din, size));
938 if (isfile)
939 printf(", file '%s'\n", (char *)buf);
940 else
941 printf(", buffer %p\n", buf);
942 }
943
944 in.i_number = ino;
945 in.i_size = DIP(din, size);
946 if (ffs_opts->version == 1)
947 memcpy(&in.i_din.ffs1_din, &din->ffs1_din,
948 sizeof(in.i_din.ffs1_din));
949 else
950 memcpy(&in.i_din.ffs2_din, &din->ffs2_din,
951 sizeof(in.i_din.ffs2_din));
952
953 if (DIP(din, size) == 0)
954 goto write_inode_and_leave; /* mmm, cheating */
955
956 if (isfile) {
957 fbuf = emalloc(ffs_opts->bsize);
958 if ((ffd = open((char *)buf, O_RDONLY)) == -1) {
959 err(EXIT_FAILURE, "Can't open `%s' for reading", (char *)buf);
960 }
961 } else {
962 p = buf;
963 }
964
965 chunk = 0;
966 for (bufleft = DIP(din, size); bufleft > 0; bufleft -= chunk) {
967 chunk = MIN(bufleft, ffs_opts->bsize);
968 if (!isfile)
969 ;
970 else if ((nread = read(ffd, fbuf, chunk)) == -1)
971 err(EXIT_FAILURE, "Reading `%s', %lld bytes to go",
972 (char *)buf, (long long)bufleft);
973 else if (nread != chunk)
974 errx(EXIT_FAILURE, "Reading `%s', %lld bytes to go, "
975 "read %zd bytes, expected %ju bytes, does "
976 "metalog size= attribute mismatch source size?",
977 (char *)buf, (long long)bufleft, nread,
978 (uintmax_t)chunk);
979 else
980 p = fbuf;
981 offset = DIP(din, size) - bufleft;
982 if (debug & DEBUG_FS_WRITE_FILE_BLOCK)
983 printf(
984 "ffs_write_file: write %p offset %lld size %lld left %lld\n",
985 p, (long long)offset,
986 (long long)chunk, (long long)bufleft);
987 /*
988 * XXX if holey support is desired, do the check here
989 *
990 * XXX might need to write out last bit in fragroundup
991 * sized chunk. however, ffs_balloc() handles this for us
992 */
993 errno = ffs_balloc(&in, offset, chunk, &bp);
994 bad_ffs_write_file:
995 if (errno != 0)
996 err(1,
997 "Writing inode %d (%s), bytes %lld + %lld",
998 ino,
999 isfile ? (char *)buf :
1000 inode_type(DIP(din, mode) & S_IFMT),
1001 (long long)offset, (long long)chunk);
1002 memcpy(bp->b_data, p, chunk);
1003 errno = bwrite(bp);
1004 if (errno != 0)
1005 goto bad_ffs_write_file;
1006 if (!isfile)
1007 p += chunk;
1008 }
1009
1010 write_inode_and_leave:
1011 ffs_write_inode(&in.i_din, in.i_number, fsopts);
1012 if (fbuf)
1013 free(fbuf);
1014 if (ffd != -1)
1015 close(ffd);
1016 }
1017
1018
1019 static void
ffs_dump_dirbuf(dirbuf_t * dbuf,const char * dir,int needswap)1020 ffs_dump_dirbuf(dirbuf_t *dbuf, const char *dir, int needswap)
1021 {
1022 doff_t i;
1023 struct direct *de;
1024 uint16_t reclen;
1025
1026 assert (dbuf != NULL);
1027 assert (dir != NULL);
1028 printf("ffs_dump_dirbuf: dir %s size %d cur %d\n",
1029 dir, dbuf->size, dbuf->cur);
1030
1031 for (i = 0; i < dbuf->size; ) {
1032 de = (struct direct *)(dbuf->buf + i);
1033 reclen = ufs_rw16(de->d_reclen, needswap);
1034 printf(
1035 " inode %4d %7s offset %4d reclen %3d namlen %3d name %s\n",
1036 ufs_rw32(de->d_ino, needswap),
1037 inode_type(DTTOIF(de->d_type)), i, reclen,
1038 de->d_namlen, de->d_name);
1039 i += reclen;
1040 assert(reclen > 0);
1041 }
1042 }
1043
1044 static void
ffs_make_dirbuf(dirbuf_t * dbuf,const char * name,fsnode * node,int needswap)1045 ffs_make_dirbuf(dirbuf_t *dbuf, const char *name, fsnode *node, int needswap)
1046 {
1047 struct direct de, *dp;
1048 uint16_t llen, reclen;
1049 u_char *newbuf;
1050
1051 assert (dbuf != NULL);
1052 assert (name != NULL);
1053 assert (node != NULL);
1054 /* create direct entry */
1055 (void)memset(&de, 0, sizeof(de));
1056 de.d_ino = ufs_rw32(node->inode->ino, needswap);
1057 de.d_type = IFTODT(node->type);
1058 de.d_namlen = (uint8_t)strlen(name);
1059 strcpy(de.d_name, name);
1060 reclen = DIRSIZ_SWAP(0, &de, needswap);
1061 de.d_reclen = ufs_rw16(reclen, needswap);
1062
1063 dp = (struct direct *)(dbuf->buf + dbuf->cur);
1064 llen = 0;
1065 if (dp != NULL)
1066 llen = DIRSIZ_SWAP(0, dp, needswap);
1067
1068 if (debug & DEBUG_FS_MAKE_DIRBUF)
1069 printf(
1070 "ffs_make_dirbuf: dbuf siz %d cur %d lastlen %d\n"
1071 " ino %d type %d reclen %d namlen %d name %.30s\n",
1072 dbuf->size, dbuf->cur, llen,
1073 ufs_rw32(de.d_ino, needswap), de.d_type, reclen,
1074 de.d_namlen, de.d_name);
1075
1076 if (reclen + dbuf->cur + llen > roundup(dbuf->size, DIRBLKSIZ)) {
1077 if (debug & DEBUG_FS_MAKE_DIRBUF)
1078 printf("ffs_make_dirbuf: growing buf to %d\n",
1079 dbuf->size + DIRBLKSIZ);
1080 newbuf = erealloc(dbuf->buf, dbuf->size + DIRBLKSIZ);
1081 dbuf->buf = newbuf;
1082 dbuf->size += DIRBLKSIZ;
1083 memset(dbuf->buf + dbuf->size - DIRBLKSIZ, 0, DIRBLKSIZ);
1084 dbuf->cur = dbuf->size - DIRBLKSIZ;
1085 } else if (dp) { /* shrink end of previous */
1086 dp->d_reclen = ufs_rw16(llen,needswap);
1087 dbuf->cur += llen;
1088 }
1089 dp = (struct direct *)(dbuf->buf + dbuf->cur);
1090 memcpy(dp, &de, reclen);
1091 dp->d_reclen = ufs_rw16(dbuf->size - dbuf->cur, needswap);
1092 }
1093
1094 /*
1095 * cribbed from sys/ufs/ffs/ffs_alloc.c
1096 */
1097 static void
ffs_write_inode(union dinode * dp,uint32_t ino,const fsinfo_t * fsopts)1098 ffs_write_inode(union dinode *dp, uint32_t ino, const fsinfo_t *fsopts)
1099 {
1100 char *buf;
1101 struct ufs1_dinode *dp1;
1102 struct ufs2_dinode *dp2, *dip;
1103 struct cg *cgp;
1104 struct fs *fs;
1105 int cg, cgino;
1106 uint32_t i;
1107 daddr_t d;
1108 char sbbuf[FFS_MAXBSIZE];
1109 uint32_t initediblk;
1110 ffs_opt_t *ffs_opts = fsopts->fs_specific;
1111
1112 assert (dp != NULL);
1113 assert (ino > 0);
1114 assert (fsopts != NULL);
1115 assert (ffs_opts != NULL);
1116
1117 fs = (struct fs *)fsopts->superblock;
1118 cg = ino_to_cg(fs, ino);
1119 cgino = ino % fs->fs_ipg;
1120 if (debug & DEBUG_FS_WRITE_INODE)
1121 printf("ffs_write_inode: din %p ino %u cg %d cgino %d\n",
1122 dp, ino, cg, cgino);
1123
1124 ffs_rdfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf,
1125 fsopts);
1126 cgp = (struct cg *)sbbuf;
1127 if (!cg_chkmagic_swap(cgp, fsopts->needswap))
1128 errx(1, "ffs_write_inode: cg %d: bad magic number", cg);
1129
1130 assert (isclr(cg_inosused_swap(cgp, fsopts->needswap), cgino));
1131
1132 buf = emalloc(fs->fs_bsize);
1133 dp1 = (struct ufs1_dinode *)buf;
1134 dp2 = (struct ufs2_dinode *)buf;
1135
1136 if (fs->fs_cstotal.cs_nifree == 0)
1137 errx(1, "ffs_write_inode: fs out of inodes for ino %u",
1138 ino);
1139 if (fs->fs_cs(fs, cg).cs_nifree == 0)
1140 errx(1,
1141 "ffs_write_inode: cg %d out of inodes for ino %u",
1142 cg, ino);
1143 setbit(cg_inosused_swap(cgp, fsopts->needswap), cgino);
1144 ufs_add32(cgp->cg_cs.cs_nifree, -1, fsopts->needswap);
1145 fs->fs_cstotal.cs_nifree--;
1146 fs->fs_cs(fs, cg).cs_nifree--;
1147 if (S_ISDIR(DIP(dp, mode))) {
1148 ufs_add32(cgp->cg_cs.cs_ndir, 1, fsopts->needswap);
1149 fs->fs_cstotal.cs_ndir++;
1150 fs->fs_cs(fs, cg).cs_ndir++;
1151 }
1152
1153 /*
1154 * Initialize inode blocks on the fly for UFS2.
1155 */
1156 initediblk = ufs_rw32(cgp->cg_initediblk, fsopts->needswap);
1157 while (ffs_opts->version == 2 && cgino + INOPB(fs) > initediblk &&
1158 initediblk < ufs_rw32(cgp->cg_niblk, fsopts->needswap)) {
1159 memset(buf, 0, fs->fs_bsize);
1160 dip = (struct ufs2_dinode *)buf;
1161 for (i = 0; i < INOPB(fs); i++) {
1162 dip->di_gen = random();
1163 dip++;
1164 }
1165 ffs_wtfs(fsbtodb(fs, ino_to_fsba(fs,
1166 cg * fs->fs_ipg + initediblk)),
1167 fs->fs_bsize, buf, fsopts);
1168 initediblk += INOPB(fs);
1169 cgp->cg_initediblk = ufs_rw32(initediblk, fsopts->needswap);
1170 }
1171
1172
1173 ffs_wtfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf,
1174 fsopts);
1175
1176 /* now write inode */
1177 d = fsbtodb(fs, ino_to_fsba(fs, ino));
1178 ffs_rdfs(d, fs->fs_bsize, buf, fsopts);
1179 if (fsopts->needswap) {
1180 if (ffs_opts->version == 1)
1181 ffs_dinode1_swap(&dp->ffs1_din,
1182 &dp1[ino_to_fsbo(fs, ino)]);
1183 else
1184 ffs_dinode2_swap(&dp->ffs2_din,
1185 &dp2[ino_to_fsbo(fs, ino)]);
1186 } else {
1187 if (ffs_opts->version == 1)
1188 dp1[ino_to_fsbo(fs, ino)] = dp->ffs1_din;
1189 else
1190 dp2[ino_to_fsbo(fs, ino)] = dp->ffs2_din;
1191 }
1192 ffs_wtfs(d, fs->fs_bsize, buf, fsopts);
1193 free(buf);
1194 }
1195
1196 void
panic(const char * fmt,...)1197 panic(const char *fmt, ...)
1198 {
1199 va_list ap;
1200
1201 va_start(ap, fmt);
1202 vwarnx(fmt, ap);
1203 va_end(ap);
1204 exit(1);
1205 }
1206