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