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mkfs: factor superblock feature validation
[thirdparty/xfsprogs-dev.git] / mkfs / xfs_mkfs.c
1 /*
2 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18 #include "libfrog.h"
19 #include "libxfs.h"
20 #include <ctype.h>
21 #include "xfs_multidisk.h"
22 #include "libxcmd.h"
23
24 /*
25 * Prototypes for internal functions.
26 */
27 static void conflict(char opt, const char *tab[], int oldidx, int newidx);
28 static void illegal(const char *value, const char *opt);
29 static __attribute__((noreturn)) void usage (void);
30 static __attribute__((noreturn)) void reqval(char opt, const char *tab[], int idx);
31 static void respec(char opt, const char *tab[], int idx);
32 static void unknown(char opt, char *s);
33 static int ispow2(unsigned int i);
34
35 /*
36 * The configured block and sector sizes are defined as global variables so
37 * that they don't need to be passed to functions that require them.
38 */
39 unsigned int blocksize;
40 unsigned int sectorsize;
41
42 #define MAX_SUBOPTS 17
43 #define SUBOPT_NEEDS_VAL (-1LL)
44 #define MAX_CONFLICTS 8
45 #define LAST_CONFLICT (-1)
46
47 /*
48 * Table for parsing mkfs parameters.
49 *
50 * Description of the structure members follows:
51 *
52 * name MANDATORY
53 * Name is a single char, e.g., for '-d file', name is 'd'.
54 *
55 * subopts MANDATORY
56 * Subopts is a list of strings naming suboptions. In the example above,
57 * it would contain "file". The last entry of this list has to be NULL.
58 *
59 * subopt_params MANDATORY
60 * This is a list of structs tied with subopts. For each entry in subopts,
61 * a corresponding entry has to be defined:
62 *
63 * subopt_params struct:
64 * index MANDATORY
65 * This number, starting from zero, denotes which item in subopt_params
66 * it is. The index has to be the same as is the order in subopts list,
67 * so we can access the right item both in subopt_param and subopts.
68 *
69 * seen INTERNAL
70 * Do not set this flag when definning a subopt. It is used to remeber that
71 * this subopt was already seen, for example for conflicts detection.
72 *
73 * str_seen INTERNAL
74 * Do not set. It is used internally for respecification, when some options
75 * has to be parsed twice - at first as a string, then later as a number.
76 *
77 * convert OPTIONAL
78 * A flag signalling whether the user-given value can use suffixes.
79 * If you want to allow the use of user-friendly values like 13k, 42G,
80 * set it to true.
81 *
82 * is_power_2 OPTIONAL
83 * An optional flag for subopts where the given value has to be a power
84 * of two.
85 *
86 * conflicts MANDATORY
87 * If your subopt is in a conflict with some other option, specify it.
88 * Accepts the .index values of the conflicting subopts and the last
89 * member of this list has to be LAST_CONFLICT.
90 *
91 * minval, maxval OPTIONAL
92 * These options are used for automatic range check and they have to be
93 * always used together in pair. If you don't want to limit the max value,
94 * use something like UINT_MAX. If no value is given, then you must either
95 * supply your own validation, or refuse any value in the 'case
96 * X_SOMETHING' block. If you forget to define the min and max value, but
97 * call a standard function for validating user's value, it will cause an
98 * error message notifying you about this issue.
99 *
100 * (Said in another way, you can't have minval and maxval both equal
101 * to zero. But if one value is different: minval=0 and maxval=1,
102 * then it is OK.)
103 *
104 * defaultval MANDATORY
105 * The value used if user specifies the subopt, but no value.
106 * If the subopt accepts some values (-d file=[1|0]), then this
107 * sets what is used with simple specifying the subopt (-d file).
108 * A special SUBOPT_NEEDS_VAL can be used to require a user-given
109 * value in any case.
110 */
111 struct opt_params {
112 const char name;
113 const char *subopts[MAX_SUBOPTS];
114
115 struct subopt_param {
116 int index;
117 bool seen;
118 bool str_seen;
119 bool convert;
120 bool is_power_2;
121 int conflicts[MAX_CONFLICTS];
122 long long minval;
123 long long maxval;
124 long long defaultval;
125 } subopt_params[MAX_SUBOPTS];
126 };
127
128 struct opt_params bopts = {
129 .name = 'b',
130 .subopts = {
131 #define B_LOG 0
132 "log",
133 #define B_SIZE 1
134 "size",
135 NULL
136 },
137 .subopt_params = {
138 { .index = B_LOG,
139 .conflicts = { B_SIZE,
140 LAST_CONFLICT },
141 .minval = XFS_MIN_BLOCKSIZE_LOG,
142 .maxval = XFS_MAX_BLOCKSIZE_LOG,
143 .defaultval = SUBOPT_NEEDS_VAL,
144 },
145 { .index = B_SIZE,
146 .convert = true,
147 .is_power_2 = true,
148 .conflicts = { B_LOG,
149 LAST_CONFLICT },
150 .minval = XFS_MIN_BLOCKSIZE,
151 .maxval = XFS_MAX_BLOCKSIZE,
152 .defaultval = SUBOPT_NEEDS_VAL,
153 },
154 },
155 };
156
157 struct opt_params dopts = {
158 .name = 'd',
159 .subopts = {
160 #define D_AGCOUNT 0
161 "agcount",
162 #define D_FILE 1
163 "file",
164 #define D_NAME 2
165 "name",
166 #define D_SIZE 3
167 "size",
168 #define D_SUNIT 4
169 "sunit",
170 #define D_SWIDTH 5
171 "swidth",
172 #define D_AGSIZE 6
173 "agsize",
174 #define D_SU 7
175 "su",
176 #define D_SW 8
177 "sw",
178 #define D_SECTLOG 9
179 "sectlog",
180 #define D_SECTSIZE 10
181 "sectsize",
182 #define D_NOALIGN 11
183 "noalign",
184 #define D_RTINHERIT 12
185 "rtinherit",
186 #define D_PROJINHERIT 13
187 "projinherit",
188 #define D_EXTSZINHERIT 14
189 "extszinherit",
190 #define D_COWEXTSIZE 15
191 "cowextsize",
192 NULL
193 },
194 .subopt_params = {
195 { .index = D_AGCOUNT,
196 .conflicts = { D_AGSIZE,
197 LAST_CONFLICT },
198 .minval = 1,
199 .maxval = XFS_MAX_AGNUMBER,
200 .defaultval = SUBOPT_NEEDS_VAL,
201 },
202 { .index = D_FILE,
203 .conflicts = { LAST_CONFLICT },
204 .minval = 0,
205 .maxval = 1,
206 .defaultval = 1,
207 },
208 { .index = D_NAME,
209 .conflicts = { LAST_CONFLICT },
210 .defaultval = SUBOPT_NEEDS_VAL,
211 },
212 { .index = D_SIZE,
213 .conflicts = { LAST_CONFLICT },
214 .convert = true,
215 .minval = XFS_AG_MIN_BYTES,
216 .maxval = LLONG_MAX,
217 .defaultval = SUBOPT_NEEDS_VAL,
218 },
219 { .index = D_SUNIT,
220 .conflicts = { D_NOALIGN,
221 D_SU,
222 D_SW,
223 LAST_CONFLICT },
224 .minval = 0,
225 .maxval = UINT_MAX,
226 .defaultval = SUBOPT_NEEDS_VAL,
227 },
228 { .index = D_SWIDTH,
229 .conflicts = { D_NOALIGN,
230 D_SU,
231 D_SW,
232 LAST_CONFLICT },
233 .minval = 0,
234 .maxval = UINT_MAX,
235 .defaultval = SUBOPT_NEEDS_VAL,
236 },
237 { .index = D_AGSIZE,
238 .conflicts = { D_AGCOUNT,
239 LAST_CONFLICT },
240 .convert = true,
241 .minval = XFS_AG_MIN_BYTES,
242 .maxval = XFS_AG_MAX_BYTES,
243 .defaultval = SUBOPT_NEEDS_VAL,
244 },
245 { .index = D_SU,
246 .conflicts = { D_NOALIGN,
247 D_SUNIT,
248 D_SWIDTH,
249 LAST_CONFLICT },
250 .convert = true,
251 .minval = 0,
252 .maxval = UINT_MAX,
253 .defaultval = SUBOPT_NEEDS_VAL,
254 },
255 { .index = D_SW,
256 .conflicts = { D_NOALIGN,
257 D_SUNIT,
258 D_SWIDTH,
259 LAST_CONFLICT },
260 .minval = 0,
261 .maxval = UINT_MAX,
262 .defaultval = SUBOPT_NEEDS_VAL,
263 },
264 { .index = D_SECTLOG,
265 .conflicts = { D_SECTSIZE,
266 LAST_CONFLICT },
267 .minval = XFS_MIN_SECTORSIZE_LOG,
268 .maxval = XFS_MAX_SECTORSIZE_LOG,
269 .defaultval = SUBOPT_NEEDS_VAL,
270 },
271 { .index = D_SECTSIZE,
272 .conflicts = { D_SECTLOG,
273 LAST_CONFLICT },
274 .convert = true,
275 .is_power_2 = true,
276 .minval = XFS_MIN_SECTORSIZE,
277 .maxval = XFS_MAX_SECTORSIZE,
278 .defaultval = SUBOPT_NEEDS_VAL,
279 },
280 { .index = D_NOALIGN,
281 .conflicts = { D_SU,
282 D_SW,
283 D_SUNIT,
284 D_SWIDTH,
285 LAST_CONFLICT },
286 .minval = 0,
287 .maxval = 1,
288 .defaultval = 1,
289 },
290 { .index = D_RTINHERIT,
291 .conflicts = { LAST_CONFLICT },
292 .minval = 1,
293 .maxval = 1,
294 .defaultval = 1,
295 },
296 { .index = D_PROJINHERIT,
297 .conflicts = { LAST_CONFLICT },
298 .minval = 0,
299 .maxval = UINT_MAX,
300 .defaultval = SUBOPT_NEEDS_VAL,
301 },
302 { .index = D_EXTSZINHERIT,
303 .conflicts = { LAST_CONFLICT },
304 .minval = 0,
305 .maxval = UINT_MAX,
306 .defaultval = SUBOPT_NEEDS_VAL,
307 },
308 { .index = D_COWEXTSIZE,
309 .conflicts = { LAST_CONFLICT },
310 .minval = 0,
311 .maxval = UINT_MAX,
312 .defaultval = SUBOPT_NEEDS_VAL,
313 },
314 },
315 };
316
317
318 struct opt_params iopts = {
319 .name = 'i',
320 .subopts = {
321 #define I_ALIGN 0
322 "align",
323 #define I_LOG 1
324 "log",
325 #define I_MAXPCT 2
326 "maxpct",
327 #define I_PERBLOCK 3
328 "perblock",
329 #define I_SIZE 4
330 "size",
331 #define I_ATTR 5
332 "attr",
333 #define I_PROJID32BIT 6
334 "projid32bit",
335 #define I_SPINODES 7
336 "sparse",
337 NULL
338 },
339 .subopt_params = {
340 { .index = I_ALIGN,
341 .conflicts = { LAST_CONFLICT },
342 .minval = 0,
343 .maxval = 1,
344 .defaultval = 1,
345 },
346 { .index = I_LOG,
347 .conflicts = { I_PERBLOCK,
348 I_SIZE,
349 LAST_CONFLICT },
350 .minval = XFS_DINODE_MIN_LOG,
351 .maxval = XFS_DINODE_MAX_LOG,
352 .defaultval = SUBOPT_NEEDS_VAL,
353 },
354 { .index = I_MAXPCT,
355 .conflicts = { LAST_CONFLICT },
356 .minval = 0,
357 .maxval = 100,
358 .defaultval = SUBOPT_NEEDS_VAL,
359 },
360 { .index = I_PERBLOCK,
361 .conflicts = { I_LOG,
362 I_SIZE,
363 LAST_CONFLICT },
364 .is_power_2 = true,
365 .minval = XFS_MIN_INODE_PERBLOCK,
366 .maxval = XFS_MAX_BLOCKSIZE / XFS_DINODE_MIN_SIZE,
367 .defaultval = SUBOPT_NEEDS_VAL,
368 },
369 { .index = I_SIZE,
370 .conflicts = { I_PERBLOCK,
371 I_LOG,
372 LAST_CONFLICT },
373 .is_power_2 = true,
374 .minval = XFS_DINODE_MIN_SIZE,
375 .maxval = XFS_DINODE_MAX_SIZE,
376 .defaultval = SUBOPT_NEEDS_VAL,
377 },
378 { .index = I_ATTR,
379 .conflicts = { LAST_CONFLICT },
380 .minval = 0,
381 .maxval = 2,
382 .defaultval = SUBOPT_NEEDS_VAL,
383 },
384 { .index = I_PROJID32BIT,
385 .conflicts = { LAST_CONFLICT },
386 .minval = 0,
387 .maxval = 1,
388 .defaultval = 1,
389 },
390 { .index = I_SPINODES,
391 .conflicts = { LAST_CONFLICT },
392 .minval = 0,
393 .maxval = 1,
394 .defaultval = 1,
395 },
396 },
397 };
398
399 struct opt_params lopts = {
400 .name = 'l',
401 .subopts = {
402 #define L_AGNUM 0
403 "agnum",
404 #define L_INTERNAL 1
405 "internal",
406 #define L_SIZE 2
407 "size",
408 #define L_VERSION 3
409 "version",
410 #define L_SUNIT 4
411 "sunit",
412 #define L_SU 5
413 "su",
414 #define L_DEV 6
415 "logdev",
416 #define L_SECTLOG 7
417 "sectlog",
418 #define L_SECTSIZE 8
419 "sectsize",
420 #define L_FILE 9
421 "file",
422 #define L_NAME 10
423 "name",
424 #define L_LAZYSBCNTR 11
425 "lazy-count",
426 NULL
427 },
428 .subopt_params = {
429 { .index = L_AGNUM,
430 .conflicts = { L_DEV,
431 LAST_CONFLICT },
432 .minval = 0,
433 .maxval = UINT_MAX,
434 .defaultval = SUBOPT_NEEDS_VAL,
435 },
436 { .index = L_INTERNAL,
437 .conflicts = { L_FILE,
438 L_DEV,
439 L_SECTLOG,
440 L_SECTSIZE,
441 LAST_CONFLICT },
442 .minval = 0,
443 .maxval = 1,
444 .defaultval = 1,
445 },
446 { .index = L_SIZE,
447 .conflicts = { LAST_CONFLICT },
448 .convert = true,
449 .minval = 2 * 1024 * 1024LL, /* XXX: XFS_MIN_LOG_BYTES */
450 .maxval = XFS_MAX_LOG_BYTES,
451 .defaultval = SUBOPT_NEEDS_VAL,
452 },
453 { .index = L_VERSION,
454 .conflicts = { LAST_CONFLICT },
455 .minval = 1,
456 .maxval = 2,
457 .defaultval = SUBOPT_NEEDS_VAL,
458 },
459 { .index = L_SUNIT,
460 .conflicts = { L_SU,
461 LAST_CONFLICT },
462 .minval = 1,
463 .maxval = BTOBB(XLOG_MAX_RECORD_BSIZE),
464 .defaultval = SUBOPT_NEEDS_VAL,
465 },
466 { .index = L_SU,
467 .conflicts = { L_SUNIT,
468 LAST_CONFLICT },
469 .convert = true,
470 .minval = BBTOB(1),
471 .maxval = XLOG_MAX_RECORD_BSIZE,
472 .defaultval = SUBOPT_NEEDS_VAL,
473 },
474 { .index = L_DEV,
475 .conflicts = { L_AGNUM,
476 L_INTERNAL,
477 LAST_CONFLICT },
478 .defaultval = SUBOPT_NEEDS_VAL,
479 },
480 { .index = L_SECTLOG,
481 .conflicts = { L_SECTSIZE,
482 L_INTERNAL,
483 LAST_CONFLICT },
484 .minval = XFS_MIN_SECTORSIZE_LOG,
485 .maxval = XFS_MAX_SECTORSIZE_LOG,
486 .defaultval = SUBOPT_NEEDS_VAL,
487 },
488 { .index = L_SECTSIZE,
489 .conflicts = { L_SECTLOG,
490 L_INTERNAL,
491 LAST_CONFLICT },
492 .convert = true,
493 .is_power_2 = true,
494 .minval = XFS_MIN_SECTORSIZE,
495 .maxval = XFS_MAX_SECTORSIZE,
496 .defaultval = SUBOPT_NEEDS_VAL,
497 },
498 { .index = L_FILE,
499 .conflicts = { L_INTERNAL,
500 LAST_CONFLICT },
501 .minval = 0,
502 .maxval = 1,
503 .defaultval = 1,
504 },
505 { .index = L_NAME,
506 .conflicts = { L_AGNUM,
507 L_INTERNAL,
508 LAST_CONFLICT },
509 .defaultval = SUBOPT_NEEDS_VAL,
510 },
511 { .index = L_LAZYSBCNTR,
512 .conflicts = { LAST_CONFLICT },
513 .minval = 0,
514 .maxval = 1,
515 .defaultval = 1,
516 },
517 },
518 };
519
520 struct opt_params nopts = {
521 .name = 'n',
522 .subopts = {
523 #define N_LOG 0
524 "log",
525 #define N_SIZE 1
526 "size",
527 #define N_VERSION 2
528 "version",
529 #define N_FTYPE 3
530 "ftype",
531 NULL,
532 },
533 .subopt_params = {
534 { .index = N_LOG,
535 .conflicts = { N_SIZE,
536 LAST_CONFLICT },
537 .minval = XFS_MIN_REC_DIRSIZE,
538 .maxval = XFS_MAX_BLOCKSIZE_LOG,
539 .defaultval = SUBOPT_NEEDS_VAL,
540 },
541 { .index = N_SIZE,
542 .conflicts = { N_LOG,
543 LAST_CONFLICT },
544 .convert = true,
545 .is_power_2 = true,
546 .minval = 1 << XFS_MIN_REC_DIRSIZE,
547 .maxval = XFS_MAX_BLOCKSIZE,
548 .defaultval = SUBOPT_NEEDS_VAL,
549 },
550 { .index = N_VERSION,
551 .conflicts = { LAST_CONFLICT },
552 .minval = 2,
553 .maxval = 2,
554 .defaultval = SUBOPT_NEEDS_VAL,
555 },
556 { .index = N_FTYPE,
557 .conflicts = { LAST_CONFLICT },
558 .minval = 0,
559 .maxval = 1,
560 .defaultval = 1,
561 },
562 },
563 };
564
565 struct opt_params ropts = {
566 .name = 'r',
567 .subopts = {
568 #define R_EXTSIZE 0
569 "extsize",
570 #define R_SIZE 1
571 "size",
572 #define R_DEV 2
573 "rtdev",
574 #define R_FILE 3
575 "file",
576 #define R_NAME 4
577 "name",
578 #define R_NOALIGN 5
579 "noalign",
580 NULL
581 },
582 .subopt_params = {
583 { .index = R_EXTSIZE,
584 .conflicts = { LAST_CONFLICT },
585 .convert = true,
586 .minval = XFS_MIN_RTEXTSIZE,
587 .maxval = XFS_MAX_RTEXTSIZE,
588 .defaultval = SUBOPT_NEEDS_VAL,
589 },
590 { .index = R_SIZE,
591 .conflicts = { LAST_CONFLICT },
592 .convert = true,
593 .minval = 0,
594 .maxval = LLONG_MAX,
595 .defaultval = SUBOPT_NEEDS_VAL,
596 },
597 { .index = R_DEV,
598 .conflicts = { LAST_CONFLICT },
599 .defaultval = SUBOPT_NEEDS_VAL,
600 },
601 { .index = R_FILE,
602 .minval = 0,
603 .maxval = 1,
604 .defaultval = 1,
605 .conflicts = { LAST_CONFLICT },
606 },
607 { .index = R_NAME,
608 .conflicts = { LAST_CONFLICT },
609 .defaultval = SUBOPT_NEEDS_VAL,
610 },
611 { .index = R_NOALIGN,
612 .minval = 0,
613 .maxval = 1,
614 .defaultval = 1,
615 .conflicts = { LAST_CONFLICT },
616 },
617 },
618 };
619
620 struct opt_params sopts = {
621 .name = 's',
622 .subopts = {
623 #define S_LOG 0
624 "log",
625 #define S_SECTLOG 1
626 "sectlog",
627 #define S_SIZE 2
628 "size",
629 #define S_SECTSIZE 3
630 "sectsize",
631 NULL
632 },
633 .subopt_params = {
634 { .index = S_LOG,
635 .conflicts = { S_SIZE,
636 S_SECTSIZE,
637 LAST_CONFLICT },
638 .minval = XFS_MIN_SECTORSIZE_LOG,
639 .maxval = XFS_MAX_SECTORSIZE_LOG,
640 .defaultval = SUBOPT_NEEDS_VAL,
641 },
642 { .index = S_SECTLOG,
643 .conflicts = { S_SIZE,
644 S_SECTSIZE,
645 LAST_CONFLICT },
646 .minval = XFS_MIN_SECTORSIZE_LOG,
647 .maxval = XFS_MAX_SECTORSIZE_LOG,
648 .defaultval = SUBOPT_NEEDS_VAL,
649 },
650 { .index = S_SIZE,
651 .conflicts = { S_LOG,
652 S_SECTLOG,
653 LAST_CONFLICT },
654 .convert = true,
655 .is_power_2 = true,
656 .minval = XFS_MIN_SECTORSIZE,
657 .maxval = XFS_MAX_SECTORSIZE,
658 .defaultval = SUBOPT_NEEDS_VAL,
659 },
660 { .index = S_SECTSIZE,
661 .conflicts = { S_LOG,
662 S_SECTLOG,
663 LAST_CONFLICT },
664 .convert = true,
665 .is_power_2 = true,
666 .minval = XFS_MIN_SECTORSIZE,
667 .maxval = XFS_MAX_SECTORSIZE,
668 .defaultval = SUBOPT_NEEDS_VAL,
669 },
670 },
671 };
672
673 struct opt_params mopts = {
674 .name = 'm',
675 .subopts = {
676 #define M_CRC 0
677 "crc",
678 #define M_FINOBT 1
679 "finobt",
680 #define M_UUID 2
681 "uuid",
682 #define M_RMAPBT 3
683 "rmapbt",
684 #define M_REFLINK 4
685 "reflink",
686 NULL
687 },
688 .subopt_params = {
689 { .index = M_CRC,
690 .conflicts = { LAST_CONFLICT },
691 .minval = 0,
692 .maxval = 1,
693 .defaultval = 1,
694 },
695 { .index = M_FINOBT,
696 .conflicts = { LAST_CONFLICT },
697 .minval = 0,
698 .maxval = 1,
699 .defaultval = 1,
700 },
701 { .index = M_UUID,
702 .conflicts = { LAST_CONFLICT },
703 .defaultval = SUBOPT_NEEDS_VAL,
704 },
705 { .index = M_RMAPBT,
706 .conflicts = { LAST_CONFLICT },
707 .minval = 0,
708 .maxval = 1,
709 .defaultval = 1,
710 },
711 { .index = M_REFLINK,
712 .conflicts = { LAST_CONFLICT },
713 .minval = 0,
714 .maxval = 1,
715 .defaultval = 1,
716 },
717 },
718 };
719
720 /* quick way of checking if a parameter was set on the CLI */
721 static bool
722 cli_opt_set(
723 struct opt_params *opts,
724 int subopt)
725 {
726 return opts->subopt_params[subopt].seen ||
727 opts->subopt_params[subopt].str_seen;
728 }
729
730 /*
731 * Options configured on the command line.
732 *
733 * This stores all the specific config parameters the user sets on the command
734 * line. We do not use these values directly - they are inputs to the mkfs
735 * geometry validation and override any default configuration value we have.
736 *
737 * We don't keep flags to indicate what parameters are set - if we need to check
738 * if an option was set on the command line, we check the relevant entry in the
739 * option table which records whether it was specified in the .seen and
740 * .str_seen variables in the table.
741 *
742 * Some parameters are stored as strings for post-parsing after their dependent
743 * options have been resolved (e.g. block size and sector size have been parsed
744 * and validated).
745 *
746 * This allows us to check that values have been set without needing separate
747 * flags for each value, and hence avoids needing to record and check for each
748 * specific option that can set the value later on in the code. In the cases
749 * where we don't have a cli_params structure around, the above cli_opt_set()
750 * function can be used.
751 */
752 struct sb_feat_args {
753 int log_version;
754 int attr_version;
755 int dir_version;
756 bool inode_align;
757 bool nci;
758 bool lazy_sb_counters;
759 bool projid16bit;
760 bool crcs_enabled;
761 bool dirftype;
762 bool finobt;
763 bool spinodes;
764 bool rmapbt;
765 bool reflink;
766 bool parent_pointers;
767 bool nodalign;
768 bool nortalign;
769 uuid_t m_uuid;
770 };
771
772 struct cli_params {
773 int sectorsize;
774 int blocksize;
775
776 /* parameters that depend on sector/block size being validated. */
777 char *dsize;
778 char *agsize;
779 char *dsu;
780 char *dirblocksize;
781 char *logsize;
782 char *lsu;
783 char *rtextsize;
784 char *rtsize;
785
786 /* parameters where 0 is a valid CLI value */
787 int dsunit;
788 int dswidth;
789 int dsw;
790 int64_t logagno;
791 int loginternal;
792 int lsunit;
793
794 /* parameters where 0 is not a valid value */
795 int64_t agcount;
796 int dirblocklog;
797 int inodesize;
798 int inopblock;
799 int imaxpct;
800 int lsectorsize;
801 uuid_t uuid;
802
803 /* feature flags that are set */
804 struct sb_feat_args sb_feat;
805
806 /* root inode characteristics */
807 struct fsxattr fsx;
808
809 /* libxfs device setup */
810 struct libxfs_xinit *xi;
811 };
812
813 /*
814 * Calculated filesystem feature and geometry information.
815 *
816 * This structure contains the information we will use to create the on-disk
817 * filesystem from. The validation and calculation code uses it to store all the
818 * temporary and final config state for the filesystem.
819 *
820 * The information in this structure will contain a mix of validated CLI input
821 * variables, default feature state and calculated values that are needed to
822 * construct the superblock and other on disk features. These are all in one
823 * place so that we don't have to pass handfuls of seemingly arbitrary variables
824 * around to different functions to do the work we need to do.
825 */
826 struct mkfs_params {
827 int blocksize;
828 int blocklog;
829 int sectorsize;
830 int sectorlog;
831 int lsectorsize;
832 int lsectorlog;
833 int dirblocksize;
834 int dirblocklog;
835 int inodesize;
836 int inodelog;
837 int inopblock;
838
839 uint64_t dblocks;
840 uint64_t logblocks;
841 uint64_t rtblocks;
842 uint64_t rtextblocks;
843 uint64_t rtextents;
844 uint64_t rtbmblocks; /* rt bitmap blocks */
845
846 int dsunit; /* in FSBs */
847 int dswidth; /* in FSBs */
848 int lsunit; /* in FSBs */
849
850 uint64_t agsize;
851 uint64_t agcount;
852
853 int imaxpct;
854
855 bool loginternal;
856 uint64_t logstart;
857 uint64_t logagno;
858
859 uuid_t uuid;
860 char *label;
861
862 struct sb_feat_args sb_feat;
863 };
864
865 /*
866 * Default filesystem features and configuration values
867 *
868 * This structure contains the default mkfs values that are to be used when
869 * a user does not specify the option on the command line. We do not use these
870 * values directly - they are inputs to the mkfs geometry validation and
871 * calculations.
872 */
873 struct mkfs_default_params {
874 char *source; /* where the defaults came from */
875
876 int sectorsize;
877 int blocksize;
878
879 /* feature flags that are set */
880 struct sb_feat_args sb_feat;
881
882 /* root inode characteristics */
883 struct fsxattr fsx;
884 };
885
886 #define TERABYTES(count, blog) ((uint64_t)(count) << (40 - (blog)))
887 #define GIGABYTES(count, blog) ((uint64_t)(count) << (30 - (blog)))
888 #define MEGABYTES(count, blog) ((uint64_t)(count) << (20 - (blog)))
889
890 /*
891 * Use this macro before we have superblock and mount structure
892 */
893 #define DTOBT(d) ((xfs_rfsblock_t)((d) >> (blocklog - BBSHIFT)))
894
895 /*
896 * Use this for block reservations needed for mkfs's conditions
897 * (basically no fragmentation).
898 */
899 #define MKFS_BLOCKRES_INODE \
900 ((uint)(mp->m_ialloc_blks + (mp->m_in_maxlevels - 1)))
901 #define MKFS_BLOCKRES(rb) \
902 ((uint)(MKFS_BLOCKRES_INODE + XFS_DA_NODE_MAXDEPTH + \
903 (XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) - 1) + (rb)))
904
905 /* amount (in bytes) we zero at the beginning and end of the device to
906 * remove traces of other filesystems, raid superblocks, etc.
907 */
908 #define WHACK_SIZE (128 * 1024)
909
910 /*
911 * Convert lsu to lsunit for 512 bytes blocks and check validity of the values.
912 */
913 static void
914 calc_stripe_factors(
915 int dsu,
916 int dsw,
917 int dsectsz,
918 int lsu,
919 int lsectsz,
920 int *dsunit,
921 int *dswidth,
922 int *lsunit)
923 {
924 /* Handle data sunit/swidth options */
925 if ((*dsunit && !*dswidth) || (!*dsunit && *dswidth)) {
926 fprintf(stderr,
927 _("both data sunit and data swidth options "
928 "must be specified\n"));
929 usage();
930 }
931
932 if (dsu || dsw) {
933 if ((dsu && !dsw) || (!dsu && dsw)) {
934 fprintf(stderr,
935 _("both data su and data sw options "
936 "must be specified\n"));
937 usage();
938 }
939
940 if (dsu % dsectsz) {
941 fprintf(stderr,
942 _("data su must be a multiple of the "
943 "sector size (%d)\n"), dsectsz);
944 usage();
945 }
946
947 *dsunit = (int)BTOBBT(dsu);
948 *dswidth = *dsunit * dsw;
949 }
950
951 if (*dsunit && (*dswidth % *dsunit != 0)) {
952 fprintf(stderr,
953 _("data stripe width (%d) must be a multiple of the "
954 "data stripe unit (%d)\n"), *dswidth, *dsunit);
955 usage();
956 }
957
958 /* Handle log sunit options */
959
960 if (lsu)
961 *lsunit = (int)BTOBBT(lsu);
962
963 /* verify if lsu/lsunit is a multiple block size */
964 if (lsu % blocksize != 0) {
965 fprintf(stderr,
966 _("log stripe unit (%d) must be a multiple of the block size (%d)\n"),
967 lsu, blocksize);
968 exit(1);
969 }
970 if ((BBTOB(*lsunit) % blocksize != 0)) {
971 fprintf(stderr,
972 _("log stripe unit (%d) must be a multiple of the block size (%d)\n"),
973 BBTOB(*lsunit), blocksize);
974 exit(1);
975 }
976 }
977
978 static void
979 check_device_type(
980 const char *name,
981 int *isfile,
982 bool no_size,
983 bool no_name,
984 int *create,
985 bool force_overwrite,
986 const char *optname)
987 {
988 struct stat statbuf;
989
990 if (*isfile && (no_size || no_name)) {
991 fprintf(stderr,
992 _("if -%s file then -%s name and -%s size are required\n"),
993 optname, optname, optname);
994 usage();
995 }
996
997 if (!name) {
998 fprintf(stderr, _("No device name specified\n"));
999 usage();
1000 }
1001
1002 if (stat(name, &statbuf)) {
1003 if (errno == ENOENT && *isfile) {
1004 if (create)
1005 *create = 1;
1006 return;
1007 }
1008
1009 fprintf(stderr,
1010 _("Error accessing specified device %s: %s\n"),
1011 name, strerror(errno));
1012 usage();
1013 return;
1014 }
1015
1016 if (!force_overwrite && check_overwrite(name)) {
1017 fprintf(stderr,
1018 _("%s: Use the -f option to force overwrite.\n"),
1019 progname);
1020 exit(1);
1021 }
1022
1023 /*
1024 * We only want to completely truncate and recreate an existing file if
1025 * we were specifically told it was a file. Set the create flag only in
1026 * this case to trigger that behaviour.
1027 */
1028 if (S_ISREG(statbuf.st_mode)) {
1029 if (!*isfile)
1030 *isfile = 1;
1031 else if (create)
1032 *create = 1;
1033 return;
1034 }
1035
1036 if (S_ISBLK(statbuf.st_mode)) {
1037 if (*isfile) {
1038 fprintf(stderr,
1039 _("specified \"-%s file\" on a block device %s\n"),
1040 optname, name);
1041 usage();
1042 }
1043 return;
1044 }
1045
1046 fprintf(stderr,
1047 _("specified device %s not a file or block device\n"),
1048 name);
1049 usage();
1050 }
1051
1052 static void
1053 fixup_log_stripe_unit(
1054 int lsflag,
1055 int sunit,
1056 xfs_rfsblock_t *logblocks,
1057 int blocklog)
1058 {
1059 uint64_t tmp_logblocks;
1060
1061 /*
1062 * Make sure that the log size is a multiple of the stripe unit
1063 */
1064 if ((*logblocks % sunit) != 0) {
1065 if (!lsflag) {
1066 tmp_logblocks = ((*logblocks + (sunit - 1))
1067 / sunit) * sunit;
1068 /*
1069 * If the log is too large, round down
1070 * instead of round up
1071 */
1072 if ((tmp_logblocks > XFS_MAX_LOG_BLOCKS) ||
1073 ((tmp_logblocks << blocklog) > XFS_MAX_LOG_BYTES)) {
1074 tmp_logblocks = (*logblocks / sunit) * sunit;
1075 }
1076 *logblocks = tmp_logblocks;
1077 } else {
1078 fprintf(stderr, _("log size %lld is not a multiple "
1079 "of the log stripe unit %d\n"),
1080 (long long) *logblocks, sunit);
1081 usage();
1082 }
1083 }
1084 }
1085
1086 static xfs_fsblock_t
1087 fixup_internal_log_stripe(
1088 xfs_mount_t *mp,
1089 int lsflag,
1090 xfs_fsblock_t logstart,
1091 uint64_t agsize,
1092 int sunit,
1093 xfs_rfsblock_t *logblocks,
1094 int blocklog,
1095 int *lalign)
1096 {
1097 if ((logstart % sunit) != 0) {
1098 logstart = ((logstart + (sunit - 1))/sunit) * sunit;
1099 *lalign = 1;
1100 }
1101
1102 fixup_log_stripe_unit(lsflag, sunit, logblocks, blocklog);
1103
1104 if (*logblocks > agsize - XFS_FSB_TO_AGBNO(mp, logstart)) {
1105 fprintf(stderr,
1106 _("Due to stripe alignment, the internal log size "
1107 "(%lld) is too large.\n"), (long long) *logblocks);
1108 fprintf(stderr, _("Must fit within an allocation group.\n"));
1109 usage();
1110 }
1111 return logstart;
1112 }
1113
1114 void
1115 validate_log_size(uint64_t logblocks, int blocklog, int min_logblocks)
1116 {
1117 if (logblocks < min_logblocks) {
1118 fprintf(stderr,
1119 _("log size %lld blocks too small, minimum size is %d blocks\n"),
1120 (long long)logblocks, min_logblocks);
1121 usage();
1122 }
1123 if (logblocks > XFS_MAX_LOG_BLOCKS) {
1124 fprintf(stderr,
1125 _("log size %lld blocks too large, maximum size is %lld blocks\n"),
1126 (long long)logblocks, XFS_MAX_LOG_BLOCKS);
1127 usage();
1128 }
1129 if ((logblocks << blocklog) > XFS_MAX_LOG_BYTES) {
1130 fprintf(stderr,
1131 _("log size %lld bytes too large, maximum size is %lld bytes\n"),
1132 (long long)(logblocks << blocklog), XFS_MAX_LOG_BYTES);
1133 usage();
1134 }
1135 }
1136
1137 static int
1138 calc_default_imaxpct(
1139 int blocklog,
1140 uint64_t dblocks)
1141 {
1142 /*
1143 * This returns the % of the disk space that is used for
1144 * inodes, it changes relatively to the FS size:
1145 * - over 50 TB, use 1%,
1146 * - 1TB - 50 TB, use 5%,
1147 * - under 1 TB, use XFS_DFL_IMAXIMUM_PCT (25%).
1148 */
1149
1150 if (dblocks < TERABYTES(1, blocklog)) {
1151 return XFS_DFL_IMAXIMUM_PCT;
1152 } else if (dblocks < TERABYTES(50, blocklog)) {
1153 return 5;
1154 }
1155
1156 return 1;
1157 }
1158
1159 static void
1160 validate_ag_geometry(
1161 int blocklog,
1162 uint64_t dblocks,
1163 uint64_t agsize,
1164 uint64_t agcount)
1165 {
1166 if (agsize < XFS_AG_MIN_BLOCKS(blocklog)) {
1167 fprintf(stderr,
1168 _("agsize (%lld blocks) too small, need at least %lld blocks\n"),
1169 (long long)agsize,
1170 (long long)XFS_AG_MIN_BLOCKS(blocklog));
1171 usage();
1172 }
1173
1174 if (agsize > XFS_AG_MAX_BLOCKS(blocklog)) {
1175 fprintf(stderr,
1176 _("agsize (%lld blocks) too big, maximum is %lld blocks\n"),
1177 (long long)agsize,
1178 (long long)XFS_AG_MAX_BLOCKS(blocklog));
1179 usage();
1180 }
1181
1182 if (agsize > dblocks) {
1183 fprintf(stderr,
1184 _("agsize (%lld blocks) too big, data area is %lld blocks\n"),
1185 (long long)agsize, (long long)dblocks);
1186 usage();
1187 }
1188
1189 if (agsize < XFS_AG_MIN_BLOCKS(blocklog)) {
1190 fprintf(stderr,
1191 _("too many allocation groups for size = %lld\n"),
1192 (long long)agsize);
1193 fprintf(stderr, _("need at most %lld allocation groups\n"),
1194 (long long)(dblocks / XFS_AG_MIN_BLOCKS(blocklog) +
1195 (dblocks % XFS_AG_MIN_BLOCKS(blocklog) != 0)));
1196 usage();
1197 }
1198
1199 if (agsize > XFS_AG_MAX_BLOCKS(blocklog)) {
1200 fprintf(stderr,
1201 _("too few allocation groups for size = %lld\n"), (long long)agsize);
1202 fprintf(stderr,
1203 _("need at least %lld allocation groups\n"),
1204 (long long)(dblocks / XFS_AG_MAX_BLOCKS(blocklog) +
1205 (dblocks % XFS_AG_MAX_BLOCKS(blocklog) != 0)));
1206 usage();
1207 }
1208
1209 /*
1210 * If the last AG is too small, reduce the filesystem size
1211 * and drop the blocks.
1212 */
1213 if ( dblocks % agsize != 0 &&
1214 (dblocks % agsize < XFS_AG_MIN_BLOCKS(blocklog))) {
1215 fprintf(stderr,
1216 _("last AG size %lld blocks too small, minimum size is %lld blocks\n"),
1217 (long long)(dblocks % agsize),
1218 (long long)XFS_AG_MIN_BLOCKS(blocklog));
1219 usage();
1220 }
1221
1222 /*
1223 * If agcount is too large, make it smaller.
1224 */
1225 if (agcount > XFS_MAX_AGNUMBER + 1) {
1226 fprintf(stderr,
1227 _("%lld allocation groups is too many, maximum is %lld\n"),
1228 (long long)agcount, (long long)XFS_MAX_AGNUMBER + 1);
1229 usage();
1230 }
1231 }
1232
1233 static void
1234 zero_old_xfs_structures(
1235 libxfs_init_t *xi,
1236 xfs_sb_t *new_sb)
1237 {
1238 void *buf;
1239 xfs_sb_t sb;
1240 uint32_t bsize;
1241 int i;
1242 xfs_off_t off;
1243
1244 /*
1245 * We open regular files with O_TRUNC|O_CREAT. Nothing to do here...
1246 */
1247 if (xi->disfile && xi->dcreat)
1248 return;
1249
1250 /*
1251 * read in existing filesystem superblock, use its geometry
1252 * settings and zero the existing secondary superblocks.
1253 */
1254 buf = memalign(libxfs_device_alignment(), new_sb->sb_sectsize);
1255 if (!buf) {
1256 fprintf(stderr,
1257 _("error reading existing superblock -- failed to memalign buffer\n"));
1258 return;
1259 }
1260 memset(buf, 0, new_sb->sb_sectsize);
1261
1262 /*
1263 * If we are creating an image file, it might be of zero length at this
1264 * point in time. Hence reading the existing superblock is going to
1265 * return zero bytes. It's not a failure we need to warn about in this
1266 * case.
1267 */
1268 off = pread(xi->dfd, buf, new_sb->sb_sectsize, 0);
1269 if (off != new_sb->sb_sectsize) {
1270 if (!xi->disfile)
1271 fprintf(stderr,
1272 _("error reading existing superblock: %s\n"),
1273 strerror(errno));
1274 goto done;
1275 }
1276 libxfs_sb_from_disk(&sb, buf);
1277
1278 /*
1279 * perform same basic superblock validation to make sure we
1280 * actually zero secondary blocks
1281 */
1282 if (sb.sb_magicnum != XFS_SB_MAGIC || sb.sb_blocksize == 0)
1283 goto done;
1284
1285 for (bsize = 1, i = 0; bsize < sb.sb_blocksize &&
1286 i < sizeof(sb.sb_blocksize) * NBBY; i++)
1287 bsize <<= 1;
1288
1289 if (i < XFS_MIN_BLOCKSIZE_LOG || i > XFS_MAX_BLOCKSIZE_LOG ||
1290 i != sb.sb_blocklog)
1291 goto done;
1292
1293 if (sb.sb_dblocks > ((uint64_t)sb.sb_agcount * sb.sb_agblocks) ||
1294 sb.sb_dblocks < ((uint64_t)(sb.sb_agcount - 1) *
1295 sb.sb_agblocks + XFS_MIN_AG_BLOCKS))
1296 goto done;
1297
1298 /*
1299 * block size and basic geometry seems alright, zero the secondaries.
1300 */
1301 memset(buf, 0, new_sb->sb_sectsize);
1302 off = 0;
1303 for (i = 1; i < sb.sb_agcount; i++) {
1304 off += sb.sb_agblocks;
1305 if (pwrite(xi->dfd, buf, new_sb->sb_sectsize,
1306 off << sb.sb_blocklog) == -1)
1307 break;
1308 }
1309 done:
1310 free(buf);
1311 }
1312
1313 static void
1314 discard_blocks(dev_t dev, uint64_t nsectors)
1315 {
1316 int fd;
1317
1318 /*
1319 * We intentionally ignore errors from the discard ioctl. It is
1320 * not necessary for the mkfs functionality but just an optimization.
1321 */
1322 fd = libxfs_device_to_fd(dev);
1323 if (fd > 0)
1324 platform_discard_blocks(fd, 0, nsectors << 9);
1325 }
1326
1327 static void
1328 sb_set_features(
1329 struct xfs_sb *sbp,
1330 struct sb_feat_args *fp,
1331 int sectsize,
1332 int lsectsize,
1333 int dsunit)
1334 {
1335
1336 sbp->sb_versionnum = XFS_DFL_SB_VERSION_BITS;
1337 if (fp->crcs_enabled)
1338 sbp->sb_versionnum |= XFS_SB_VERSION_5;
1339 else
1340 sbp->sb_versionnum |= XFS_SB_VERSION_4;
1341
1342 if (fp->inode_align)
1343 sbp->sb_versionnum |= XFS_SB_VERSION_ALIGNBIT;
1344 if (dsunit)
1345 sbp->sb_versionnum |= XFS_SB_VERSION_DALIGNBIT;
1346 if (fp->log_version == 2)
1347 sbp->sb_versionnum |= XFS_SB_VERSION_LOGV2BIT;
1348 if (fp->attr_version == 1)
1349 sbp->sb_versionnum |= XFS_SB_VERSION_ATTRBIT;
1350 if (sectsize > BBSIZE || lsectsize > BBSIZE)
1351 sbp->sb_versionnum |= XFS_SB_VERSION_SECTORBIT;
1352 if (fp->nci)
1353 sbp->sb_versionnum |= XFS_SB_VERSION_BORGBIT;
1354
1355
1356 sbp->sb_features2 = 0;
1357 if (fp->lazy_sb_counters)
1358 sbp->sb_features2 |= XFS_SB_VERSION2_LAZYSBCOUNTBIT;
1359 if (!fp->projid16bit)
1360 sbp->sb_features2 |= XFS_SB_VERSION2_PROJID32BIT;
1361 if (fp->parent_pointers)
1362 sbp->sb_features2 |= XFS_SB_VERSION2_PARENTBIT;
1363 if (fp->crcs_enabled)
1364 sbp->sb_features2 |= XFS_SB_VERSION2_CRCBIT;
1365 if (fp->attr_version == 2)
1366 sbp->sb_features2 |= XFS_SB_VERSION2_ATTR2BIT;
1367
1368 /* v5 superblocks have their own feature bit for dirftype */
1369 if (fp->dirftype && !fp->crcs_enabled)
1370 sbp->sb_features2 |= XFS_SB_VERSION2_FTYPE;
1371
1372 /* update whether extended features are in use */
1373 if (sbp->sb_features2 != 0)
1374 sbp->sb_versionnum |= XFS_SB_VERSION_MOREBITSBIT;
1375
1376 /*
1377 * Due to a structure alignment issue, sb_features2 ended up in one
1378 * of two locations, the second "incorrect" location represented by
1379 * the sb_bad_features2 field. To avoid older kernels mounting
1380 * filesystems they shouldn't, set both field to the same value.
1381 */
1382 sbp->sb_bad_features2 = sbp->sb_features2;
1383
1384 if (!fp->crcs_enabled)
1385 return;
1386
1387 /* default features for v5 filesystems */
1388 sbp->sb_features_compat = 0;
1389 sbp->sb_features_ro_compat = 0;
1390 sbp->sb_features_incompat = XFS_SB_FEAT_INCOMPAT_FTYPE;
1391 sbp->sb_features_log_incompat = 0;
1392
1393 if (fp->finobt)
1394 sbp->sb_features_ro_compat = XFS_SB_FEAT_RO_COMPAT_FINOBT;
1395 if (fp->rmapbt)
1396 sbp->sb_features_ro_compat |= XFS_SB_FEAT_RO_COMPAT_RMAPBT;
1397 if (fp->reflink)
1398 sbp->sb_features_ro_compat |= XFS_SB_FEAT_RO_COMPAT_REFLINK;
1399
1400 /*
1401 * Sparse inode chunk support has two main inode alignment requirements.
1402 * First, sparse chunk alignment must match the cluster size. Second,
1403 * full chunk alignment must match the inode chunk size.
1404 *
1405 * Copy the already calculated/scaled inoalignmt to spino_align and
1406 * update the former to the full inode chunk size.
1407 */
1408 if (fp->spinodes) {
1409 sbp->sb_spino_align = sbp->sb_inoalignmt;
1410 sbp->sb_inoalignmt = XFS_INODES_PER_CHUNK *
1411 sbp->sb_inodesize >> sbp->sb_blocklog;
1412 sbp->sb_features_incompat |= XFS_SB_FEAT_INCOMPAT_SPINODES;
1413 }
1414
1415 }
1416
1417 static __attribute__((noreturn)) void
1418 illegal_option(
1419 const char *value,
1420 struct opt_params *opts,
1421 int index,
1422 const char *reason)
1423 {
1424 fprintf(stderr,
1425 _("Illegal value %s for -%c %s option. %s\n"),
1426 value, opts->name, opts->subopts[index],
1427 reason ? reason : "");
1428 usage();
1429 }
1430
1431 /*
1432 * Check for conflicts and option respecification.
1433 */
1434 static void
1435 check_opt(
1436 struct opt_params *opts,
1437 int index,
1438 bool str_seen)
1439 {
1440 struct subopt_param *sp = &opts->subopt_params[index];
1441 int i;
1442
1443 if (sp->index != index) {
1444 fprintf(stderr,
1445 _("Developer screwed up option parsing (%d/%d)! Please report!\n"),
1446 sp->index, index);
1447 reqval(opts->name, opts->subopts, index);
1448 }
1449
1450 /*
1451 * Check for respecification of the option. This is more complex than it
1452 * seems because some options are parsed twice - once as a string during
1453 * input parsing, then later the string is passed to getnum for
1454 * conversion into a number and bounds checking. Hence the two variables
1455 * used to track the different uses based on the @str parameter passed
1456 * to us.
1457 */
1458 if (!str_seen) {
1459 if (sp->seen)
1460 respec(opts->name, opts->subopts, index);
1461 sp->seen = true;
1462 } else {
1463 if (sp->str_seen)
1464 respec(opts->name, opts->subopts, index);
1465 sp->str_seen = true;
1466 }
1467
1468 /* check for conflicts with the option */
1469 for (i = 0; i < MAX_CONFLICTS; i++) {
1470 int conflict_opt = sp->conflicts[i];
1471
1472 if (conflict_opt == LAST_CONFLICT)
1473 break;
1474 if (opts->subopt_params[conflict_opt].seen ||
1475 opts->subopt_params[conflict_opt].str_seen)
1476 conflict(opts->name, opts->subopts,
1477 conflict_opt, index);
1478 }
1479 }
1480
1481 static long long
1482 getnum(
1483 const char *str,
1484 struct opt_params *opts,
1485 int index)
1486 {
1487 struct subopt_param *sp = &opts->subopt_params[index];
1488 long long c;
1489
1490 check_opt(opts, index, false);
1491 /* empty strings might just return a default value */
1492 if (!str || *str == '\0') {
1493 if (sp->defaultval == SUBOPT_NEEDS_VAL)
1494 reqval(opts->name, opts->subopts, index);
1495 return sp->defaultval;
1496 }
1497
1498 if (sp->minval == 0 && sp->maxval == 0) {
1499 fprintf(stderr,
1500 _("Option -%c %s has undefined minval/maxval."
1501 "Can't verify value range. This is a bug.\n"),
1502 opts->name, opts->subopts[index]);
1503 exit(1);
1504 }
1505
1506 /*
1507 * Some values are pure numbers, others can have suffixes that define
1508 * the units of the number. Those get passed to cvtnum(), otherwise we
1509 * convert it ourselves to guarantee there is no trailing garbage in the
1510 * number.
1511 */
1512 if (sp->convert)
1513 c = cvtnum(blocksize, sectorsize, str);
1514 else {
1515 char *str_end;
1516
1517 c = strtoll(str, &str_end, 0);
1518 if (c == 0 && str_end == str)
1519 illegal_option(str, opts, index, NULL);
1520 if (*str_end != '\0')
1521 illegal_option(str, opts, index, NULL);
1522 }
1523
1524 /* Validity check the result. */
1525 if (c < sp->minval)
1526 illegal_option(str, opts, index, _("value is too small"));
1527 else if (c > sp->maxval)
1528 illegal_option(str, opts, index, _("value is too large"));
1529 if (sp->is_power_2 && !ispow2(c))
1530 illegal_option(str, opts, index, _("value must be a power of 2"));
1531 return c;
1532 }
1533
1534 /*
1535 * Option is a string - do all the option table work, and check there
1536 * is actually an option string. Otherwise we don't do anything with the string
1537 * here - validation will be done later when the string is converted to a value
1538 * or used as a file/device path.
1539 */
1540 static char *
1541 getstr(
1542 char *str,
1543 struct opt_params *opts,
1544 int index)
1545 {
1546 check_opt(opts, index, true);
1547
1548 /* empty strings for string options are not valid */
1549 if (!str || *str == '\0')
1550 reqval(opts->name, opts->subopts, index);
1551 return str;
1552 }
1553
1554 static int
1555 block_opts_parser(
1556 struct opt_params *opts,
1557 int subopt,
1558 char *value,
1559 struct cli_params *cli)
1560 {
1561 int blocklog;
1562
1563 switch (subopt) {
1564 case B_LOG:
1565 blocklog = getnum(value, opts, B_LOG);
1566 cli->blocksize = 1 << blocklog;
1567 break;
1568 case B_SIZE:
1569 cli->blocksize = getnum(value, opts, B_SIZE);
1570 break;
1571 default:
1572 return -EINVAL;
1573 }
1574 return 0;
1575 }
1576
1577 static int
1578 data_opts_parser(
1579 struct opt_params *opts,
1580 int subopt,
1581 char *value,
1582 struct cli_params *cli)
1583 {
1584 int sectorlog;
1585
1586 switch (subopt) {
1587 case D_AGCOUNT:
1588 cli->agcount = getnum(value, opts, D_AGCOUNT);
1589 break;
1590 case D_AGSIZE:
1591 cli->agsize = getstr(value, opts, D_AGSIZE);
1592 break;
1593 case D_FILE:
1594 cli->xi->disfile = getnum(value, opts, D_FILE);
1595 break;
1596 case D_NAME:
1597 cli->xi->dname = getstr(value, opts, D_NAME);
1598 break;
1599 case D_SIZE:
1600 cli->dsize = getstr(value, opts, D_SIZE);
1601 break;
1602 case D_SUNIT:
1603 cli->dsunit = getnum(value, opts, D_SUNIT);
1604 break;
1605 case D_SWIDTH:
1606 cli->dswidth = getnum(value, opts, D_SWIDTH);
1607 break;
1608 case D_SU:
1609 cli->dsu = getstr(value, opts, D_SU);
1610 break;
1611 case D_SW:
1612 cli->dsw = getnum(value, opts, D_SW);
1613 break;
1614 case D_NOALIGN:
1615 cli->sb_feat.nodalign = getnum(value, opts, D_NOALIGN);
1616 break;
1617 case D_SECTLOG:
1618 if (cli->sectorsize)
1619 conflict('d', opts->subopts, D_SECTSIZE, D_SECTLOG);
1620 sectorlog = getnum(value, opts, D_SECTLOG);
1621 cli->sectorsize = 1 << sectorlog;
1622 break;
1623 case D_SECTSIZE:
1624 if (cli->sectorsize)
1625 conflict('d', opts->subopts, D_SECTSIZE, D_SECTLOG);
1626 cli->sectorsize = getnum(value, opts, D_SECTSIZE);
1627 break;
1628 case D_RTINHERIT:
1629 if (getnum(value, opts, D_RTINHERIT))
1630 cli->fsx.fsx_xflags |= XFS_DIFLAG_RTINHERIT;
1631 break;
1632 case D_PROJINHERIT:
1633 cli->fsx.fsx_projid = getnum(value, opts, D_PROJINHERIT);
1634 cli->fsx.fsx_xflags |= XFS_DIFLAG_PROJINHERIT;
1635 break;
1636 case D_EXTSZINHERIT:
1637 cli->fsx.fsx_extsize = getnum(value, opts, D_EXTSZINHERIT);
1638 cli->fsx.fsx_xflags |= XFS_DIFLAG_EXTSZINHERIT;
1639 break;
1640 case D_COWEXTSIZE:
1641 cli->fsx.fsx_cowextsize = getnum(value, opts, D_COWEXTSIZE);
1642 cli->fsx.fsx_xflags |= FS_XFLAG_COWEXTSIZE;
1643 break;
1644 default:
1645 return -EINVAL;
1646 }
1647 return 0;
1648 }
1649
1650 static int
1651 inode_opts_parser(
1652 struct opt_params *opts,
1653 int subopt,
1654 char *value,
1655 struct cli_params *cli)
1656 {
1657 int inodelog;
1658
1659 switch (subopt) {
1660 case I_ALIGN:
1661 cli->sb_feat.inode_align = getnum(value, &iopts, I_ALIGN);
1662 break;
1663 case I_LOG:
1664 inodelog = getnum(value, &iopts, I_LOG);
1665 cli->inodesize = 1 << inodelog;
1666 break;
1667 case I_MAXPCT:
1668 cli->imaxpct = getnum(value, &iopts, I_MAXPCT);
1669 break;
1670 case I_PERBLOCK:
1671 cli->inopblock = getnum(value, &iopts, I_PERBLOCK);
1672 break;
1673 case I_SIZE:
1674 cli->inodesize = getnum(value, &iopts, I_SIZE);
1675 break;
1676 case I_ATTR:
1677 cli->sb_feat.attr_version = getnum(value, &iopts, I_ATTR);
1678 break;
1679 case I_PROJID32BIT:
1680 cli->sb_feat.projid16bit = !getnum(value, &iopts, I_PROJID32BIT);
1681 break;
1682 case I_SPINODES:
1683 cli->sb_feat.spinodes = getnum(value, &iopts, I_SPINODES);
1684 break;
1685 default:
1686 return -EINVAL;
1687 }
1688 return 0;
1689 }
1690
1691 static int
1692 log_opts_parser(
1693 struct opt_params *opts,
1694 int subopt,
1695 char *value,
1696 struct cli_params *cli)
1697 {
1698 int lsectorlog;
1699
1700 switch (subopt) {
1701 case L_AGNUM:
1702 cli->logagno = getnum(value, &lopts, L_AGNUM);
1703 break;
1704 case L_FILE:
1705 cli->xi->lisfile = getnum(value, &lopts, L_FILE);
1706 break;
1707 case L_INTERNAL:
1708 cli->loginternal = getnum(value, &lopts, L_INTERNAL);
1709 break;
1710 case L_SU:
1711 cli->lsu = getstr(value, &lopts, L_SU);
1712 break;
1713 case L_SUNIT:
1714 cli->lsunit = getnum(value, &lopts, L_SUNIT);
1715 break;
1716 case L_NAME:
1717 case L_DEV:
1718 cli->xi->logname = getstr(value, &lopts, L_NAME);
1719 cli->loginternal = 0;
1720 break;
1721 case L_VERSION:
1722 cli->sb_feat.log_version = getnum(value, &lopts, L_VERSION);
1723 break;
1724 case L_SIZE:
1725 cli->logsize = getstr(value, &lopts, L_SIZE);
1726 break;
1727 case L_SECTLOG:
1728 lsectorlog = getnum(value, &lopts, L_SECTLOG);
1729 cli->lsectorsize = 1 << lsectorlog;
1730 break;
1731 case L_SECTSIZE:
1732 cli->lsectorsize = getnum(value, &lopts, L_SECTSIZE);
1733 break;
1734 case L_LAZYSBCNTR:
1735 cli->sb_feat.lazy_sb_counters = getnum(value, &lopts, L_LAZYSBCNTR);
1736 break;
1737 default:
1738 return -EINVAL;
1739 }
1740 return 0;
1741 }
1742
1743 static int
1744 meta_opts_parser(
1745 struct opt_params *opts,
1746 int subopt,
1747 char *value,
1748 struct cli_params *cli)
1749 {
1750 switch (subopt) {
1751 case M_CRC:
1752 cli->sb_feat.crcs_enabled = getnum(value, &mopts, M_CRC);
1753 if (cli->sb_feat.crcs_enabled)
1754 cli->sb_feat.dirftype = true;
1755 break;
1756 case M_FINOBT:
1757 cli->sb_feat.finobt = getnum(value, &mopts, M_FINOBT);
1758 break;
1759 case M_UUID:
1760 if (!value || *value == '\0')
1761 reqval('m', opts->subopts, M_UUID);
1762 if (platform_uuid_parse(value, &cli->uuid))
1763 illegal(value, "m uuid");
1764 break;
1765 case M_RMAPBT:
1766 cli->sb_feat.rmapbt = getnum(value, &mopts, M_RMAPBT);
1767 break;
1768 case M_REFLINK:
1769 cli->sb_feat.reflink = getnum(value, &mopts, M_REFLINK);
1770 break;
1771 default:
1772 return -EINVAL;
1773 }
1774 return 0;
1775 }
1776
1777 static int
1778 naming_opts_parser(
1779 struct opt_params *opts,
1780 int subopt,
1781 char *value,
1782 struct cli_params *cli)
1783 {
1784 switch (subopt) {
1785 case N_LOG:
1786 cli->dirblocklog = getnum(value, opts, N_LOG);
1787 break;
1788 case N_SIZE:
1789 cli->dirblocksize = getstr(value, opts, N_SIZE);
1790 break;
1791 case N_VERSION:
1792 value = getstr(value, &nopts, N_VERSION);
1793 if (!strcasecmp(value, "ci")) {
1794 /* ASCII CI mode */
1795 cli->sb_feat.nci = true;
1796 } else {
1797 cli->sb_feat.dir_version = getnum(value, opts, N_VERSION);
1798 }
1799 break;
1800 case N_FTYPE:
1801 cli->sb_feat.dirftype = getnum(value, opts, N_FTYPE);
1802 break;
1803 default:
1804 return -EINVAL;
1805 }
1806 return 0;
1807 }
1808
1809 static int
1810 rtdev_opts_parser(
1811 struct opt_params *opts,
1812 int subopt,
1813 char *value,
1814 struct cli_params *cli)
1815 {
1816 switch (subopt) {
1817 case R_EXTSIZE:
1818 cli->rtextsize = getstr(value, &ropts, R_EXTSIZE);
1819 break;
1820 case R_FILE:
1821 cli->xi->risfile = getnum(value, &ropts, R_FILE);
1822 break;
1823 case R_NAME:
1824 case R_DEV:
1825 cli->xi->rtname = getstr(value, &ropts, R_NAME);
1826 break;
1827 case R_SIZE:
1828 cli->rtsize = getstr(value, &ropts, R_SIZE);
1829 break;
1830 case R_NOALIGN:
1831 cli->sb_feat.nortalign = getnum(value, &ropts, R_NOALIGN);
1832 break;
1833 default:
1834 return -EINVAL;
1835 }
1836 return 0;
1837 }
1838
1839 static int
1840 sector_opts_parser(
1841 struct opt_params *opts,
1842 int subopt,
1843 char *value,
1844 struct cli_params *cli)
1845 {
1846 int sectorlog;
1847
1848 switch (subopt) {
1849 case S_LOG:
1850 case S_SECTLOG:
1851 if (cli->sectorsize)
1852 conflict('s', opts->subopts, S_SECTSIZE, S_SECTLOG);
1853 sectorlog = getnum(value, &sopts, S_SECTLOG);
1854 cli->sectorsize = 1 << sectorlog;
1855 cli->lsectorsize = cli->sectorsize;
1856 break;
1857 case S_SIZE:
1858 case S_SECTSIZE:
1859 if (cli->sectorsize)
1860 conflict('s', opts->subopts, S_SECTLOG, S_SECTSIZE);
1861 cli->sectorsize = getnum(value, &sopts, S_SECTSIZE);
1862 cli->lsectorsize = cli->sectorsize;
1863 break;
1864 default:
1865 return -EINVAL;
1866 }
1867 return 0;
1868 }
1869
1870 struct subopts {
1871 char opt;
1872 struct opt_params *opts;
1873 int (*parser)();
1874 } subopt_tab[] = {
1875 { 'b', &bopts, block_opts_parser },
1876 { 'd', &dopts, data_opts_parser },
1877 { 'i', &iopts, inode_opts_parser },
1878 { 'l', &lopts, log_opts_parser },
1879 { 'm', &mopts, meta_opts_parser },
1880 { 'n', &nopts, naming_opts_parser },
1881 { 'r', &ropts, rtdev_opts_parser },
1882 { 's', &sopts, sector_opts_parser },
1883 { '\0', NULL, NULL },
1884 };
1885
1886 static void
1887 parse_subopts(
1888 char opt,
1889 char *arg,
1890 struct cli_params *cli)
1891 {
1892 struct subopts *sop = &subopt_tab[0];
1893 char *p;
1894 int ret = 0;
1895
1896 while (sop->opts) {
1897 if (sop->opt == opt)
1898 break;
1899 sop++;
1900 }
1901
1902 /* should never happen */
1903 if (!sop->opts)
1904 return;
1905
1906 p = arg;
1907 while (*p != '\0') {
1908 char **subopts = (char **)sop->opts->subopts;
1909 char *value;
1910 int subopt;
1911
1912 subopt = getsubopt(&p, subopts, &value);
1913
1914 ret = (sop->parser)(sop->opts, subopt, value, cli);
1915 if (ret)
1916 unknown(opt, value);
1917 }
1918 }
1919
1920 static void
1921 validate_sectorsize(
1922 struct mkfs_params *cfg,
1923 struct cli_params *cli,
1924 struct mkfs_default_params *dft,
1925 struct fs_topology *ft,
1926 char *dfile,
1927 int dry_run,
1928 int force_overwrite)
1929 {
1930 /* set configured sector sizes in preparation for checks */
1931 if (!cli->sectorsize) {
1932 cfg->sectorsize = dft->sectorsize;
1933 } else {
1934 cfg->sectorsize = cli->sectorsize;
1935 }
1936 cfg->sectorlog = libxfs_highbit32(cfg->sectorsize);
1937
1938 /*
1939 * Before anything else, verify that we are correctly operating on
1940 * files or block devices and set the control parameters correctly.
1941 */
1942 check_device_type(dfile, &cli->xi->disfile, !cli->dsize, !dfile,
1943 dry_run ? NULL : &cli->xi->dcreat,
1944 force_overwrite, "d");
1945 if (!cli->loginternal)
1946 check_device_type(cli->xi->logname, &cli->xi->lisfile,
1947 !cli->logsize, !cli->xi->logname,
1948 dry_run ? NULL : &cli->xi->lcreat,
1949 force_overwrite, "l");
1950 if (cli->xi->rtname)
1951 check_device_type(cli->xi->rtname, &cli->xi->risfile,
1952 !cli->rtsize, !cli->xi->rtname,
1953 dry_run ? NULL : &cli->xi->rcreat,
1954 force_overwrite, "r");
1955
1956 /*
1957 * Explicitly disable direct IO for image files so we don't error out on
1958 * sector size mismatches between the new filesystem and the underlying
1959 * host filesystem.
1960 */
1961 if (cli->xi->disfile || cli->xi->lisfile || cli->xi->risfile)
1962 cli->xi->isdirect = 0;
1963
1964 memset(ft, 0, sizeof(*ft));
1965 get_topology(cli->xi, ft, force_overwrite);
1966
1967 if (!cli->sectorsize) {
1968 /*
1969 * Unless specified manually on the command line use the
1970 * advertised sector size of the device. We use the physical
1971 * sector size unless the requested block size is smaller
1972 * than that, then we can use logical, but warn about the
1973 * inefficiency.
1974 *
1975 * Set the topology sectors if they were not probed to the
1976 * minimum supported sector size.
1977 */
1978
1979 if (!ft->lsectorsize)
1980 ft->lsectorsize = XFS_MIN_SECTORSIZE;
1981
1982 /* Older kernels may not have physical/logical distinction */
1983 if (!ft->psectorsize)
1984 ft->psectorsize = ft->lsectorsize;
1985
1986 cfg->sectorsize = ft->psectorsize;
1987 if (cfg->blocksize < cfg->sectorsize &&
1988 cfg->blocksize >= ft->lsectorsize) {
1989 fprintf(stderr,
1990 _("specified blocksize %d is less than device physical sector size %d\n"
1991 "switching to logical sector size %d\n"),
1992 cfg->blocksize, ft->psectorsize,
1993 ft->lsectorsize);
1994 cfg->sectorsize = ft->lsectorsize;
1995 }
1996
1997 cfg->sectorlog = libxfs_highbit32(cfg->sectorsize);
1998 }
1999
2000 /* validate specified/probed sector size */
2001 if (cfg->sectorsize < XFS_MIN_SECTORSIZE ||
2002 cfg->sectorsize > XFS_MAX_SECTORSIZE) {
2003 fprintf(stderr, _("illegal sector size %d\n"), cfg->sectorsize);
2004 usage();
2005 }
2006
2007 if (cfg->blocksize < cfg->sectorsize) {
2008 fprintf(stderr,
2009 _("block size %d cannot be smaller than sector size %d\n"),
2010 cfg->blocksize, cfg->sectorsize);
2011 usage();
2012 }
2013
2014 if (cfg->sectorsize < ft->lsectorsize) {
2015 fprintf(stderr, _("illegal sector size %d; hw sector is %d\n"),
2016 cfg->sectorsize, ft->lsectorsize);
2017 usage();
2018 }
2019 }
2020
2021 static void
2022 validate_blocksize(
2023 struct mkfs_params *cfg,
2024 struct cli_params *cli,
2025 struct mkfs_default_params *dft)
2026 {
2027 /*
2028 * Blocksize and sectorsize first, other things depend on them
2029 * For RAID4/5/6 we want to align sector size and block size,
2030 * so we need to start with the device geometry extraction too.
2031 */
2032 if (!cli->blocksize)
2033 cfg->blocksize = dft->blocksize;
2034 else
2035 cfg->blocksize = cli->blocksize;
2036 cfg->blocklog = libxfs_highbit32(cfg->blocksize);
2037
2038 /* validate block sizes are in range */
2039 if (cfg->blocksize < XFS_MIN_BLOCKSIZE ||
2040 cfg->blocksize > XFS_MAX_BLOCKSIZE) {
2041 fprintf(stderr, _("illegal block size %d\n"), cfg->blocksize);
2042 usage();
2043 }
2044
2045 if (cli->sb_feat.crcs_enabled &&
2046 cfg->blocksize < XFS_MIN_CRC_BLOCKSIZE) {
2047 fprintf(stderr,
2048 _("Minimum block size for CRC enabled filesystems is %d bytes.\n"),
2049 XFS_MIN_CRC_BLOCKSIZE);
2050 usage();
2051 }
2052
2053 }
2054
2055 /*
2056 * Grab log sector size and validate.
2057 *
2058 * XXX: should we probe sector size on external log device rather than using
2059 * the data device sector size?
2060 */
2061 static void
2062 validate_log_sectorsize(
2063 struct mkfs_params *cfg,
2064 struct cli_params *cli,
2065 struct mkfs_default_params *dft)
2066 {
2067
2068 if (cli->loginternal && cli->lsectorsize &&
2069 cli->lsectorsize != cfg->sectorsize) {
2070 fprintf(stderr,
2071 _("Can't change sector size on internal log!\n"));
2072 usage();
2073 }
2074
2075 if (cli->lsectorsize)
2076 cfg->lsectorsize = cli->lsectorsize;
2077 else if (cli->loginternal)
2078 cfg->lsectorsize = cfg->sectorsize;
2079 else
2080 cfg->lsectorsize = dft->sectorsize;
2081 cfg->lsectorlog = libxfs_highbit32(cfg->lsectorsize);
2082
2083 if (cfg->lsectorsize < XFS_MIN_SECTORSIZE ||
2084 cfg->lsectorsize > XFS_MAX_SECTORSIZE ||
2085 cfg->lsectorsize > cfg->blocksize) {
2086 fprintf(stderr, _("illegal log sector size %d\n"),
2087 cfg->lsectorsize);
2088 usage();
2089 }
2090 if (cfg->lsectorsize > XFS_MIN_SECTORSIZE) {
2091 if (cli->sb_feat.log_version < 2) {
2092 /* user specified non-default log version */
2093 fprintf(stderr,
2094 _("Version 1 logs do not support sector size %d\n"),
2095 cfg->lsectorsize);
2096 usage();
2097 }
2098 }
2099
2100 /* if lsu or lsunit was specified, automatically use v2 logs */
2101 if ((cli_opt_set(&lopts, L_SU) || cli_opt_set(&lopts, L_SUNIT)) &&
2102 cli->sb_feat.log_version == 1) {
2103 fprintf(stderr,
2104 _("log stripe unit specified, using v2 logs\n"));
2105 cli->sb_feat.log_version = 2;
2106 }
2107
2108 }
2109
2110 /*
2111 * Check that the incoming features make sense. The CLI structure was
2112 * initialised with the default values before parsing, so we can just
2113 * check it and copy it straight across to the cfg structure if it
2114 * checks out.
2115 */
2116 static void
2117 validate_sb_features(
2118 struct mkfs_params *cfg,
2119 struct cli_params *cli)
2120 {
2121 /*
2122 * Now we have blocks and sector sizes set up, check parameters that are
2123 * no longer optional for CRC enabled filesystems. Catch them up front
2124 * here before doing anything else.
2125 */
2126 if (cli->sb_feat.crcs_enabled) {
2127 /* minimum inode size is 512 bytes, rest checked later */
2128 if (cli->inodesize &&
2129 cli->inodesize < (1 << XFS_DINODE_DFL_CRC_LOG)) {
2130 fprintf(stderr,
2131 _("Minimum inode size for CRCs is %d bytes\n"),
2132 1 << XFS_DINODE_DFL_CRC_LOG);
2133 usage();
2134 }
2135
2136 /* inodes always aligned */
2137 if (!cli->sb_feat.inode_align) {
2138 fprintf(stderr,
2139 _("Inodes always aligned for CRC enabled filesytems\n"));
2140 usage();
2141 }
2142
2143 /* lazy sb counters always on */
2144 if (!cli->sb_feat.lazy_sb_counters) {
2145 fprintf(stderr,
2146 _("Lazy superblock counted always enabled for CRC enabled filesytems\n"));
2147 usage();
2148 }
2149
2150 /* version 2 logs always on */
2151 if (cli->sb_feat.log_version != 2) {
2152 fprintf(stderr,
2153 _("V2 logs always enabled for CRC enabled filesytems\n"));
2154 usage();
2155 }
2156
2157 /* attr2 always on */
2158 if (cli->sb_feat.attr_version != 2) {
2159 fprintf(stderr,
2160 _("V2 attribute format always enabled on CRC enabled filesytems\n"));
2161 usage();
2162 }
2163
2164 /* 32 bit project quota always on */
2165 /* attr2 always on */
2166 if (cli->sb_feat.projid16bit) {
2167 fprintf(stderr,
2168 _("32 bit Project IDs always enabled on CRC enabled filesytems\n"));
2169 usage();
2170 }
2171
2172 /* ftype always on */
2173 if (!cli->sb_feat.dirftype) {
2174 fprintf(stderr,
2175 _("Directory ftype field always enabled on CRC enabled filesytems\n"));
2176 usage();
2177 }
2178
2179 } else {
2180 /*
2181 * The kernel doesn't currently support crc=0,finobt=1
2182 * filesystems. If crcs are not enabled and the user has not
2183 * explicitly turned finobt on, then silently turn it off to
2184 * avoid an unnecessary warning.
2185 * If the user explicitly tried to use crc=0,finobt=1,
2186 * then issue an error.
2187 * The same is also for sparse inodes.
2188 */
2189 if (cli->sb_feat.finobt && cli_opt_set(&mopts, M_FINOBT)) {
2190 fprintf(stderr,
2191 _("finobt not supported without CRC support\n"));
2192 usage();
2193 }
2194 cli->sb_feat.finobt = false;
2195
2196 if (cli->sb_feat.spinodes) {
2197 fprintf(stderr,
2198 _("sparse inodes not supported without CRC support\n"));
2199 usage();
2200 }
2201 cli->sb_feat.spinodes = false;
2202
2203 if (cli->sb_feat.rmapbt) {
2204 fprintf(stderr,
2205 _("rmapbt not supported without CRC support\n"));
2206 usage();
2207 }
2208 cli->sb_feat.rmapbt = false;
2209
2210 if (cli->sb_feat.reflink) {
2211 fprintf(stderr,
2212 _("reflink not supported without CRC support\n"));
2213 usage();
2214 }
2215 cli->sb_feat.reflink = false;
2216 }
2217
2218 if ((cli->fsx.fsx_xflags & FS_XFLAG_COWEXTSIZE) &&
2219 !cli->sb_feat.reflink) {
2220 fprintf(stderr,
2221 _("cowextsize not supported without reflink support\n"));
2222 usage();
2223 }
2224
2225 if (cli->sb_feat.rmapbt && cli->xi->rtname) {
2226 fprintf(stderr,
2227 _("rmapbt not supported with realtime devices\n"));
2228 usage();
2229 cli->sb_feat.rmapbt = false;
2230 }
2231
2232 /*
2233 * Copy features across to config structure now.
2234 */
2235 cfg->sb_feat = cli->sb_feat;
2236 if (!platform_uuid_is_null(&cli->uuid))
2237 platform_uuid_copy(&cfg->uuid, &cli->uuid);
2238 }
2239
2240 static void
2241 print_mkfs_cfg(
2242 struct mkfs_params *cfg,
2243 char *dfile,
2244 char *logfile,
2245 char *rtfile)
2246 {
2247 struct sb_feat_args *fp = &cfg->sb_feat;
2248
2249 printf(_(
2250 "meta-data=%-22s isize=%-6d agcount=%lld, agsize=%lld blks\n"
2251 " =%-22s sectsz=%-5u attr=%u, projid32bit=%u\n"
2252 " =%-22s crc=%-8u finobt=%u, sparse=%u, rmapbt=%u, reflink=%u\n"
2253 "data =%-22s bsize=%-6u blocks=%llu, imaxpct=%u\n"
2254 " =%-22s sunit=%-6u swidth=%u blks\n"
2255 "naming =version %-14u bsize=%-6u ascii-ci=%d ftype=%d\n"
2256 "log =%-22s bsize=%-6d blocks=%lld, version=%d\n"
2257 " =%-22s sectsz=%-5u sunit=%d blks, lazy-count=%d\n"
2258 "realtime =%-22s extsz=%-6d blocks=%lld, rtextents=%lld\n"),
2259 dfile, cfg->inodesize, (long long)cfg->agcount,
2260 (long long)cfg->agsize,
2261 "", cfg->sectorsize, fp->attr_version, !fp->projid16bit,
2262 "", fp->crcs_enabled, fp->finobt, fp->spinodes, fp->rmapbt,
2263 fp->reflink,
2264 "", cfg->blocksize, (long long)cfg->dblocks, cfg->imaxpct,
2265 "", cfg->dsunit, cfg->dswidth,
2266 fp->dir_version, cfg->dirblocksize, fp->nci, fp->dirftype,
2267 logfile, cfg->blocksize, (long long)cfg->logblocks,
2268 fp->log_version,
2269 "", cfg->lsectorsize, cfg->lsunit, fp->lazy_sb_counters,
2270 rtfile, (int)cfg->rtextblocks << cfg->blocklog,
2271 (long long)cfg->rtblocks, (long long)cfg->rtextents);
2272 }
2273
2274 /*
2275 * Format everything from the generated config into the superblock that
2276 * will be used to initialise the on-disk superblock. This is the in-memory
2277 * copy, so no need to care about endian swapping here.
2278 */
2279 static void
2280 setup_superblock(
2281 struct mkfs_params *cfg,
2282 struct xfs_mount *mp,
2283 struct xfs_sb *sbp)
2284 {
2285 if (cfg->label)
2286 strncpy(sbp->sb_fname, cfg->label, sizeof(sbp->sb_fname));
2287
2288 sbp->sb_magicnum = XFS_SB_MAGIC;
2289 sbp->sb_blocksize = cfg->blocksize;
2290 sbp->sb_dblocks = cfg->dblocks;
2291 sbp->sb_rblocks = cfg->rtblocks;
2292 sbp->sb_rextents = cfg->rtextents;
2293 platform_uuid_copy(&sbp->sb_uuid, &cfg->uuid);
2294 /* Only in memory; libxfs expects this as if read from disk */
2295 platform_uuid_copy(&sbp->sb_meta_uuid, &cfg->uuid);
2296 sbp->sb_logstart = cfg->logstart;
2297 sbp->sb_rootino = sbp->sb_rbmino = sbp->sb_rsumino = NULLFSINO;
2298 sbp->sb_rextsize = cfg->rtextblocks;
2299 sbp->sb_agcount = (xfs_agnumber_t)cfg->agcount;
2300 sbp->sb_rbmblocks = cfg->rtbmblocks;
2301 sbp->sb_logblocks = (xfs_extlen_t)cfg->logblocks;
2302 sbp->sb_sectsize = (uint16_t)cfg->sectorsize;
2303 sbp->sb_inodesize = (uint16_t)cfg->inodesize;
2304 sbp->sb_inopblock = (uint16_t)(cfg->blocksize / cfg->inodesize);
2305 sbp->sb_sectlog = (uint8_t)cfg->sectorlog;
2306 sbp->sb_inodelog = (uint8_t)cfg->inodelog;
2307 sbp->sb_inopblog = (uint8_t)(cfg->blocklog - cfg->inodelog);
2308 sbp->sb_rextslog = (uint8_t)(cfg->rtextents ?
2309 libxfs_highbit32((unsigned int)cfg->rtextents) : 0);
2310 sbp->sb_inprogress = 1; /* mkfs is in progress */
2311 sbp->sb_imax_pct = cfg->imaxpct;
2312 sbp->sb_icount = 0;
2313 sbp->sb_ifree = 0;
2314 sbp->sb_fdblocks = cfg->dblocks -
2315 cfg->agcount * libxfs_prealloc_blocks(mp) -
2316 (cfg->loginternal ? cfg->logblocks : 0);
2317 sbp->sb_frextents = 0; /* will do a free later */
2318 sbp->sb_uquotino = sbp->sb_gquotino = sbp->sb_pquotino = 0;
2319 sbp->sb_qflags = 0;
2320 sbp->sb_unit = cfg->dsunit;
2321 sbp->sb_width = cfg->dswidth;
2322 sbp->sb_dirblklog = cfg->dirblocklog - cfg->blocklog;
2323
2324 /*
2325 * log stripe unit is stored in bytes on disk and cannot be zero
2326 * for v2 logs.
2327 */
2328 if (cfg->sb_feat.log_version == 2) {
2329 if (cfg->lsunit)
2330 sbp->sb_logsunit = XFS_FSB_TO_B(mp, cfg->lsunit);
2331 else
2332 sbp->sb_logsunit = 1;
2333 } else
2334 sbp->sb_logsunit = 0;
2335
2336 if (cfg->sb_feat.inode_align) {
2337 int cluster_size = XFS_INODE_BIG_CLUSTER_SIZE;
2338 if (cfg->sb_feat.crcs_enabled)
2339 cluster_size *= cfg->inodesize / XFS_DINODE_MIN_SIZE;
2340 sbp->sb_inoalignmt = cluster_size >> cfg->blocklog;
2341 } else
2342 sbp->sb_inoalignmt = 0;
2343
2344 if (cfg->lsectorsize != BBSIZE || cfg->sectorsize != BBSIZE) {
2345 sbp->sb_logsectlog = (uint8_t)cfg->lsectorlog;
2346 sbp->sb_logsectsize = (uint16_t)cfg->lsectorsize;
2347 } else {
2348 sbp->sb_logsectlog = 0;
2349 sbp->sb_logsectsize = 0;
2350 }
2351 }
2352
2353 /*
2354 * Sanitise the data and log devices and prepare them so libxfs can mount the
2355 * device successfully. Also check we can access the rt device if configured.
2356 */
2357 static void
2358 prepare_devices(
2359 struct mkfs_params *cfg,
2360 struct libxfs_xinit *xi,
2361 struct xfs_mount *mp,
2362 struct xfs_sb *sbp,
2363 bool clear_stale)
2364 {
2365 struct xfs_buf *buf;
2366 int whack_blks = BTOBB(WHACK_SIZE);
2367 int lsunit;
2368
2369 /*
2370 * If there's an old XFS filesystem on the device with enough intact
2371 * information that we can parse the superblock, there's enough
2372 * information on disk to confuse a future xfs_repair call. To avoid
2373 * this, whack all the old secondary superblocks that we can find.
2374 */
2375 if (clear_stale)
2376 zero_old_xfs_structures(xi, sbp);
2377
2378 /*
2379 * If the data device is a file, grow out the file to its final size if
2380 * needed so that the reads for the end of the device in the mount code
2381 * will succeed.
2382 */
2383 if (xi->disfile &&
2384 xi->dsize * xi->dbsize < cfg->dblocks * cfg->blocksize) {
2385 if (ftruncate(xi->dfd, cfg->dblocks * cfg->blocksize) < 0) {
2386 fprintf(stderr,
2387 _("%s: Growing the data section failed\n"),
2388 progname);
2389 exit(1);
2390 }
2391
2392 /* update size to be able to whack blocks correctly */
2393 xi->dsize = BTOBB(cfg->dblocks * cfg->blocksize);
2394 }
2395
2396 /*
2397 * Zero out the end to obliterate any old MD RAID (or other) metadata at
2398 * the end of the device. (MD sb is ~64k from the end, take out a wider
2399 * swath to be sure)
2400 */
2401 buf = libxfs_getbuf(mp->m_ddev_targp, (xi->dsize - whack_blks),
2402 whack_blks);
2403 memset(XFS_BUF_PTR(buf), 0, WHACK_SIZE);
2404 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2405 libxfs_purgebuf(buf);
2406
2407 /*
2408 * Now zero out the beginning of the device, to obliterate any old
2409 * filesystem signatures out there. This should take care of
2410 * swap (somewhere around the page size), jfs (32k),
2411 * ext[2,3] and reiserfs (64k) - and hopefully all else.
2412 */
2413 buf = libxfs_getbuf(mp->m_ddev_targp, 0, whack_blks);
2414 memset(XFS_BUF_PTR(buf), 0, WHACK_SIZE);
2415 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2416 libxfs_purgebuf(buf);
2417
2418 /* OK, now write the superblock... */
2419 buf = libxfs_getbuf(mp->m_ddev_targp, XFS_SB_DADDR, XFS_FSS_TO_BB(mp, 1));
2420 buf->b_ops = &xfs_sb_buf_ops;
2421 memset(XFS_BUF_PTR(buf), 0, cfg->sectorsize);
2422 libxfs_sb_to_disk((void *)XFS_BUF_PTR(buf), sbp);
2423 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2424 libxfs_purgebuf(buf);
2425
2426 /* ...and zero the log.... */
2427 lsunit = sbp->sb_logsunit;
2428 if (lsunit == 1)
2429 lsunit = sbp->sb_logsectsize;
2430
2431 libxfs_log_clear(mp->m_logdev_targp, NULL,
2432 XFS_FSB_TO_DADDR(mp, cfg->logstart),
2433 (xfs_extlen_t)XFS_FSB_TO_BB(mp, cfg->logblocks),
2434 &sbp->sb_uuid, cfg->sb_feat.log_version,
2435 lsunit, XLOG_FMT, XLOG_INIT_CYCLE, false);
2436
2437 /* finally, check we can write the last block in the realtime area */
2438 if (mp->m_rtdev_targp->dev && cfg->rtblocks > 0) {
2439 buf = libxfs_getbuf(mp->m_rtdev_targp,
2440 XFS_FSB_TO_BB(mp, cfg->rtblocks - 1LL),
2441 BTOBB(cfg->blocksize));
2442 memset(XFS_BUF_PTR(buf), 0, cfg->blocksize);
2443 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2444 libxfs_purgebuf(buf);
2445 }
2446
2447 }
2448
2449 /*
2450 * XXX: this code is mostly common with the kernel growfs code.
2451 * These initialisations should be pulled into libxfs to keep the
2452 * kernel/userspace header initialisation code the same.
2453 */
2454 static void
2455 initialise_ag_headers(
2456 struct mkfs_params *cfg,
2457 struct xfs_mount *mp,
2458 struct xfs_sb *sbp,
2459 xfs_agnumber_t agno,
2460 int *worst_freelist)
2461 {
2462 struct xfs_perag *pag = libxfs_perag_get(mp, agno);
2463 struct xfs_agfl *agfl;
2464 struct xfs_agf *agf;
2465 struct xfs_agi *agi;
2466 struct xfs_buf *buf;
2467 struct xfs_btree_block *block;
2468 struct xfs_alloc_rec *arec;
2469 struct xfs_alloc_rec *nrec;
2470 int bucket;
2471 uint64_t agsize = cfg->agsize;
2472 xfs_agblock_t agblocks;
2473 bool is_log_ag = false;
2474 int c;
2475
2476 if (cfg->loginternal && agno == cfg->logagno)
2477 is_log_ag = true;
2478
2479 /*
2480 * Superblock.
2481 */
2482 buf = libxfs_getbuf(mp->m_ddev_targp,
2483 XFS_AG_DADDR(mp, agno, XFS_SB_DADDR),
2484 XFS_FSS_TO_BB(mp, 1));
2485 buf->b_ops = &xfs_sb_buf_ops;
2486 memset(XFS_BUF_PTR(buf), 0, cfg->sectorsize);
2487 libxfs_sb_to_disk((void *)XFS_BUF_PTR(buf), sbp);
2488 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2489
2490 /*
2491 * AG header block: freespace
2492 */
2493 buf = libxfs_getbuf(mp->m_ddev_targp,
2494 XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)),
2495 XFS_FSS_TO_BB(mp, 1));
2496 buf->b_ops = &xfs_agf_buf_ops;
2497 agf = XFS_BUF_TO_AGF(buf);
2498 memset(agf, 0, cfg->sectorsize);
2499 if (agno == cfg->agcount - 1)
2500 agsize = cfg->dblocks - (xfs_rfsblock_t)(agno * agsize);
2501 agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC);
2502 agf->agf_versionnum = cpu_to_be32(XFS_AGF_VERSION);
2503 agf->agf_seqno = cpu_to_be32(agno);
2504 agf->agf_length = cpu_to_be32(agsize);
2505 agf->agf_roots[XFS_BTNUM_BNOi] = cpu_to_be32(XFS_BNO_BLOCK(mp));
2506 agf->agf_roots[XFS_BTNUM_CNTi] = cpu_to_be32(XFS_CNT_BLOCK(mp));
2507 agf->agf_levels[XFS_BTNUM_BNOi] = cpu_to_be32(1);
2508 agf->agf_levels[XFS_BTNUM_CNTi] = cpu_to_be32(1);
2509 pag->pagf_levels[XFS_BTNUM_BNOi] = 1;
2510 pag->pagf_levels[XFS_BTNUM_CNTi] = 1;
2511
2512 if (xfs_sb_version_hasrmapbt(sbp)) {
2513 agf->agf_roots[XFS_BTNUM_RMAPi] = cpu_to_be32(XFS_RMAP_BLOCK(mp));
2514 agf->agf_levels[XFS_BTNUM_RMAPi] = cpu_to_be32(1);
2515 agf->agf_rmap_blocks = cpu_to_be32(1);
2516 }
2517
2518 if (xfs_sb_version_hasreflink(sbp)) {
2519 agf->agf_refcount_root = cpu_to_be32(libxfs_refc_block(mp));
2520 agf->agf_refcount_level = cpu_to_be32(1);
2521 agf->agf_refcount_blocks = cpu_to_be32(1);
2522 }
2523
2524 agf->agf_flfirst = 0;
2525 agf->agf_fllast = cpu_to_be32(XFS_AGFL_SIZE(mp) - 1);
2526 agf->agf_flcount = 0;
2527 agblocks = (xfs_agblock_t)(agsize - libxfs_prealloc_blocks(mp));
2528 agf->agf_freeblks = cpu_to_be32(agblocks);
2529 agf->agf_longest = cpu_to_be32(agblocks);
2530
2531 if (xfs_sb_version_hascrc(sbp))
2532 platform_uuid_copy(&agf->agf_uuid, &sbp->sb_uuid);
2533
2534 if (is_log_ag) {
2535 be32_add_cpu(&agf->agf_freeblks, -(int64_t)cfg->logblocks);
2536 agf->agf_longest = cpu_to_be32(agsize -
2537 XFS_FSB_TO_AGBNO(mp, cfg->logstart) - cfg->logblocks);
2538 }
2539 if (libxfs_alloc_min_freelist(mp, pag) > *worst_freelist)
2540 *worst_freelist = libxfs_alloc_min_freelist(mp, pag);
2541 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2542
2543 /*
2544 * AG freelist header block
2545 */
2546 buf = libxfs_getbuf(mp->m_ddev_targp,
2547 XFS_AG_DADDR(mp, agno, XFS_AGFL_DADDR(mp)),
2548 XFS_FSS_TO_BB(mp, 1));
2549 buf->b_ops = &xfs_agfl_buf_ops;
2550 agfl = XFS_BUF_TO_AGFL(buf);
2551 /* setting to 0xff results in initialisation to NULLAGBLOCK */
2552 memset(agfl, 0xff, cfg->sectorsize);
2553 if (xfs_sb_version_hascrc(sbp)) {
2554 agfl->agfl_magicnum = cpu_to_be32(XFS_AGFL_MAGIC);
2555 agfl->agfl_seqno = cpu_to_be32(agno);
2556 platform_uuid_copy(&agfl->agfl_uuid, &sbp->sb_uuid);
2557 for (bucket = 0; bucket < XFS_AGFL_SIZE(mp); bucket++)
2558 agfl->agfl_bno[bucket] = cpu_to_be32(NULLAGBLOCK);
2559 }
2560
2561 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2562
2563 /*
2564 * AG header block: inodes
2565 */
2566 buf = libxfs_getbuf(mp->m_ddev_targp,
2567 XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)),
2568 XFS_FSS_TO_BB(mp, 1));
2569 agi = XFS_BUF_TO_AGI(buf);
2570 buf->b_ops = &xfs_agi_buf_ops;
2571 memset(agi, 0, cfg->sectorsize);
2572 agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC);
2573 agi->agi_versionnum = cpu_to_be32(XFS_AGI_VERSION);
2574 agi->agi_seqno = cpu_to_be32(agno);
2575 agi->agi_length = cpu_to_be32(agsize);
2576 agi->agi_count = 0;
2577 agi->agi_root = cpu_to_be32(XFS_IBT_BLOCK(mp));
2578 agi->agi_level = cpu_to_be32(1);
2579 if (xfs_sb_version_hasfinobt(sbp)) {
2580 agi->agi_free_root = cpu_to_be32(XFS_FIBT_BLOCK(mp));
2581 agi->agi_free_level = cpu_to_be32(1);
2582 }
2583 agi->agi_freecount = 0;
2584 agi->agi_newino = cpu_to_be32(NULLAGINO);
2585 agi->agi_dirino = cpu_to_be32(NULLAGINO);
2586 if (xfs_sb_version_hascrc(sbp))
2587 platform_uuid_copy(&agi->agi_uuid, &sbp->sb_uuid);
2588 for (c = 0; c < XFS_AGI_UNLINKED_BUCKETS; c++)
2589 agi->agi_unlinked[c] = cpu_to_be32(NULLAGINO);
2590 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2591
2592 /*
2593 * BNO btree root block
2594 */
2595 buf = libxfs_getbuf(mp->m_ddev_targp,
2596 XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)),
2597 BTOBB(cfg->blocksize));
2598 buf->b_ops = &xfs_allocbt_buf_ops;
2599 block = XFS_BUF_TO_BLOCK(buf);
2600 memset(block, 0, cfg->blocksize);
2601 libxfs_btree_init_block(mp, buf, XFS_BTNUM_BNO, 0, 1, agno, 0);
2602
2603 arec = XFS_ALLOC_REC_ADDR(mp, block, 1);
2604 arec->ar_startblock = cpu_to_be32(libxfs_prealloc_blocks(mp));
2605 if (is_log_ag) {
2606 xfs_agblock_t start = XFS_FSB_TO_AGBNO(mp, cfg->logstart);
2607
2608 ASSERT(start >= libxfs_prealloc_blocks(mp));
2609 if (start != libxfs_prealloc_blocks(mp)) {
2610 /*
2611 * Modify first record to pad stripe align of log
2612 */
2613 arec->ar_blockcount = cpu_to_be32(start -
2614 libxfs_prealloc_blocks(mp));
2615 nrec = arec + 1;
2616 /*
2617 * Insert second record at start of internal log
2618 * which then gets trimmed.
2619 */
2620 nrec->ar_startblock = cpu_to_be32(
2621 be32_to_cpu(arec->ar_startblock) +
2622 be32_to_cpu(arec->ar_blockcount));
2623 arec = nrec;
2624 be16_add_cpu(&block->bb_numrecs, 1);
2625 }
2626 /*
2627 * Change record start to after the internal log
2628 */
2629 be32_add_cpu(&arec->ar_startblock, cfg->logblocks);
2630 }
2631 /*
2632 * Calculate the record block count and check for the case where
2633 * the log might have consumed all available space in the AG. If
2634 * so, reset the record count to 0 to avoid exposure of an invalid
2635 * record start block.
2636 */
2637 arec->ar_blockcount = cpu_to_be32(agsize -
2638 be32_to_cpu(arec->ar_startblock));
2639 if (!arec->ar_blockcount)
2640 block->bb_numrecs = 0;
2641
2642 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2643
2644 /*
2645 * CNT btree root block
2646 */
2647 buf = libxfs_getbuf(mp->m_ddev_targp,
2648 XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)),
2649 BTOBB(cfg->blocksize));
2650 buf->b_ops = &xfs_allocbt_buf_ops;
2651 block = XFS_BUF_TO_BLOCK(buf);
2652 memset(block, 0, cfg->blocksize);
2653 libxfs_btree_init_block(mp, buf, XFS_BTNUM_CNT, 0, 1, agno, 0);
2654
2655 arec = XFS_ALLOC_REC_ADDR(mp, block, 1);
2656 arec->ar_startblock = cpu_to_be32(libxfs_prealloc_blocks(mp));
2657 if (is_log_ag) {
2658 xfs_agblock_t start = XFS_FSB_TO_AGBNO(mp, cfg->logstart);
2659
2660 ASSERT(start >= libxfs_prealloc_blocks(mp));
2661 if (start != libxfs_prealloc_blocks(mp)) {
2662 arec->ar_blockcount = cpu_to_be32(start -
2663 libxfs_prealloc_blocks(mp));
2664 nrec = arec + 1;
2665 nrec->ar_startblock = cpu_to_be32(
2666 be32_to_cpu(arec->ar_startblock) +
2667 be32_to_cpu(arec->ar_blockcount));
2668 arec = nrec;
2669 be16_add_cpu(&block->bb_numrecs, 1);
2670 }
2671 be32_add_cpu(&arec->ar_startblock, cfg->logblocks);
2672 }
2673 /*
2674 * Calculate the record block count and check for the case where
2675 * the log might have consumed all available space in the AG. If
2676 * so, reset the record count to 0 to avoid exposure of an invalid
2677 * record start block.
2678 */
2679 arec->ar_blockcount = cpu_to_be32(agsize -
2680 be32_to_cpu(arec->ar_startblock));
2681 if (!arec->ar_blockcount)
2682 block->bb_numrecs = 0;
2683
2684 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2685
2686 /*
2687 * refcount btree root block
2688 */
2689 if (xfs_sb_version_hasreflink(sbp)) {
2690 buf = libxfs_getbuf(mp->m_ddev_targp,
2691 XFS_AGB_TO_DADDR(mp, agno, libxfs_refc_block(mp)),
2692 BTOBB(cfg->blocksize));
2693 buf->b_ops = &xfs_refcountbt_buf_ops;
2694
2695 block = XFS_BUF_TO_BLOCK(buf);
2696 memset(block, 0, cfg->blocksize);
2697 libxfs_btree_init_block(mp, buf, XFS_BTNUM_REFC, 0, 0, agno, 0);
2698 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2699 }
2700
2701 /*
2702 * INO btree root block
2703 */
2704 buf = libxfs_getbuf(mp->m_ddev_targp,
2705 XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)),
2706 BTOBB(cfg->blocksize));
2707 buf->b_ops = &xfs_inobt_buf_ops;
2708 block = XFS_BUF_TO_BLOCK(buf);
2709 memset(block, 0, cfg->blocksize);
2710 libxfs_btree_init_block(mp, buf, XFS_BTNUM_INO, 0, 0, agno, 0);
2711 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2712
2713 /*
2714 * Free INO btree root block
2715 */
2716 if (xfs_sb_version_hasfinobt(sbp)) {
2717 buf = libxfs_getbuf(mp->m_ddev_targp,
2718 XFS_AGB_TO_DADDR(mp, agno, XFS_FIBT_BLOCK(mp)),
2719 BTOBB(cfg->blocksize));
2720 buf->b_ops = &xfs_inobt_buf_ops;
2721 block = XFS_BUF_TO_BLOCK(buf);
2722 memset(block, 0, cfg->blocksize);
2723 libxfs_btree_init_block(mp, buf, XFS_BTNUM_FINO, 0, 0, agno, 0);
2724 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2725 }
2726
2727 /* RMAP btree root block */
2728 if (xfs_sb_version_hasrmapbt(sbp)) {
2729 struct xfs_rmap_rec *rrec;
2730
2731 buf = libxfs_getbuf(mp->m_ddev_targp,
2732 XFS_AGB_TO_DADDR(mp, agno, XFS_RMAP_BLOCK(mp)),
2733 BTOBB(cfg->blocksize));
2734 buf->b_ops = &xfs_rmapbt_buf_ops;
2735 block = XFS_BUF_TO_BLOCK(buf);
2736 memset(block, 0, cfg->blocksize);
2737
2738 libxfs_btree_init_block(mp, buf, XFS_BTNUM_RMAP, 0, 0, agno, 0);
2739
2740 /*
2741 * mark the AG header regions as static metadata
2742 * The BNO btree block is the first block after the
2743 * headers, so it's location defines the size of region
2744 * the static metadata consumes.
2745 */
2746 rrec = XFS_RMAP_REC_ADDR(block, 1);
2747 rrec->rm_startblock = 0;
2748 rrec->rm_blockcount = cpu_to_be32(XFS_BNO_BLOCK(mp));
2749 rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_FS);
2750 rrec->rm_offset = 0;
2751 be16_add_cpu(&block->bb_numrecs, 1);
2752
2753 /* account freespace btree root blocks */
2754 rrec = XFS_RMAP_REC_ADDR(block, 2);
2755 rrec->rm_startblock = cpu_to_be32(XFS_BNO_BLOCK(mp));
2756 rrec->rm_blockcount = cpu_to_be32(2);
2757 rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_AG);
2758 rrec->rm_offset = 0;
2759 be16_add_cpu(&block->bb_numrecs, 1);
2760
2761 /* account inode btree root blocks */
2762 rrec = XFS_RMAP_REC_ADDR(block, 3);
2763 rrec->rm_startblock = cpu_to_be32(XFS_IBT_BLOCK(mp));
2764 rrec->rm_blockcount = cpu_to_be32(XFS_RMAP_BLOCK(mp) -
2765 XFS_IBT_BLOCK(mp));
2766 rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_INOBT);
2767 rrec->rm_offset = 0;
2768 be16_add_cpu(&block->bb_numrecs, 1);
2769
2770 /* account for rmap btree root */
2771 rrec = XFS_RMAP_REC_ADDR(block, 4);
2772 rrec->rm_startblock = cpu_to_be32(XFS_RMAP_BLOCK(mp));
2773 rrec->rm_blockcount = cpu_to_be32(1);
2774 rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_AG);
2775 rrec->rm_offset = 0;
2776 be16_add_cpu(&block->bb_numrecs, 1);
2777
2778 /* account for refcount btree root */
2779 if (xfs_sb_version_hasreflink(sbp)) {
2780 rrec = XFS_RMAP_REC_ADDR(block, 5);
2781 rrec->rm_startblock = cpu_to_be32(libxfs_refc_block(mp));
2782 rrec->rm_blockcount = cpu_to_be32(1);
2783 rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_REFC);
2784 rrec->rm_offset = 0;
2785 be16_add_cpu(&block->bb_numrecs, 1);
2786 }
2787
2788 /* account for the log space */
2789 if (is_log_ag) {
2790 rrec = XFS_RMAP_REC_ADDR(block,
2791 be16_to_cpu(block->bb_numrecs) + 1);
2792 rrec->rm_startblock = cpu_to_be32(
2793 XFS_FSB_TO_AGBNO(mp, cfg->logstart));
2794 rrec->rm_blockcount = cpu_to_be32(cfg->logblocks);
2795 rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_LOG);
2796 rrec->rm_offset = 0;
2797 be16_add_cpu(&block->bb_numrecs, 1);
2798 }
2799
2800 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2801 }
2802
2803 libxfs_perag_put(pag);
2804 }
2805
2806 static void
2807 initialise_ag_freespace(
2808 struct xfs_mount *mp,
2809 xfs_agnumber_t agno,
2810 int worst_freelist)
2811 {
2812 struct xfs_alloc_arg args;
2813 struct xfs_trans *tp;
2814 struct xfs_trans_res tres = {0};
2815 int c;
2816
2817 c = libxfs_trans_alloc(mp, &tres, worst_freelist, 0, 0, &tp);
2818 if (c)
2819 res_failed(c);
2820
2821 memset(&args, 0, sizeof(args));
2822 args.tp = tp;
2823 args.mp = mp;
2824 args.agno = agno;
2825 args.alignment = 1;
2826 args.pag = libxfs_perag_get(mp, agno);
2827
2828 libxfs_alloc_fix_freelist(&args, 0);
2829 libxfs_perag_put(args.pag);
2830 libxfs_trans_commit(tp);
2831 }
2832
2833 /*
2834 * rewrite several secondary superblocks with the root inode number filled out.
2835 * This can help repair recovery from a trashed primary superblock without
2836 * losing the root inode.
2837 */
2838 static void
2839 rewrite_secondary_superblocks(
2840 struct xfs_mount *mp)
2841 {
2842 struct xfs_buf *buf;
2843
2844 /* rewrite the last superblock */
2845 buf = libxfs_readbuf(mp->m_dev,
2846 XFS_AGB_TO_DADDR(mp, mp->m_sb.sb_agcount - 1,
2847 XFS_SB_DADDR),
2848 XFS_FSS_TO_BB(mp, 1),
2849 LIBXFS_EXIT_ON_FAILURE, &xfs_sb_buf_ops);
2850 XFS_BUF_TO_SBP(buf)->sb_rootino = cpu_to_be64(mp->m_sb.sb_rootino);
2851 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2852
2853 /* and one in the middle for luck if there's enough AGs for that */
2854 if (mp->m_sb.sb_agcount <= 2)
2855 return;
2856
2857 buf = libxfs_readbuf(mp->m_dev,
2858 XFS_AGB_TO_DADDR(mp, (mp->m_sb.sb_agcount - 1) / 2,
2859 XFS_SB_DADDR),
2860 XFS_FSS_TO_BB(mp, 1),
2861 LIBXFS_EXIT_ON_FAILURE, &xfs_sb_buf_ops);
2862 XFS_BUF_TO_SBP(buf)->sb_rootino = cpu_to_be64(mp->m_sb.sb_rootino);
2863 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
2864 }
2865
2866 int
2867 main(
2868 int argc,
2869 char **argv)
2870 {
2871 uint64_t agcount;
2872 xfs_agnumber_t agno;
2873 uint64_t agsize;
2874 int blocklog;
2875 xfs_buf_t *buf;
2876 int c;
2877 int daflag;
2878 int dasize;
2879 xfs_rfsblock_t dblocks;
2880 char *dfile;
2881 int dirblocklog;
2882 int dirblocksize;
2883 char *dsize;
2884 int dsu;
2885 int dsw;
2886 int dsunit;
2887 int dswidth;
2888 int dsflag;
2889 int force_overwrite;
2890 struct fsxattr fsx;
2891 int ilflag;
2892 int imaxpct;
2893 int imflag;
2894 int inodelog;
2895 int inopblock;
2896 int ipflag;
2897 int isflag;
2898 int isize;
2899 char *label = NULL;
2900 int laflag;
2901 int lalign;
2902 int ldflag;
2903 int liflag;
2904 xfs_agnumber_t logagno;
2905 xfs_rfsblock_t logblocks;
2906 char *logfile;
2907 int loginternal;
2908 char *logsize;
2909 xfs_fsblock_t logstart;
2910 int lvflag;
2911 int lsflag;
2912 int lsuflag;
2913 int lsunitflag;
2914 int lsectorlog;
2915 int lsectorsize;
2916 int lsu;
2917 int lsunit;
2918 int min_logblocks;
2919 xfs_mount_t *mp;
2920 xfs_mount_t mbuf;
2921 xfs_extlen_t nbmblocks;
2922 int nlflag;
2923 int nodsflag;
2924 int norsflag;
2925 int nsflag;
2926 int nvflag;
2927 int dry_run;
2928 int discard = 1;
2929 char *protofile;
2930 char *protostring;
2931 int quiet;
2932 xfs_rfsblock_t rtblocks;
2933 xfs_extlen_t rtextblocks;
2934 xfs_rtblock_t rtextents;
2935 char *rtextsize;
2936 char *rtfile;
2937 char *rtsize;
2938 xfs_sb_t *sbp;
2939 int sectorlog;
2940 uint64_t sector_mask;
2941 uint64_t tmp_agsize;
2942 uuid_t uuid;
2943 int worst_freelist;
2944 libxfs_init_t xi;
2945 struct fs_topology ft;
2946 struct sb_feat_args sb_feat;
2947 /* build time defaults */
2948 struct mkfs_default_params dft = {
2949 .source = "package build definitions",
2950 .sectorsize = XFS_MIN_SECTORSIZE,
2951 .blocksize = 1 << XFS_DFL_BLOCKSIZE_LOG,
2952 .sb_feat = {
2953 .log_version = 2,
2954 .attr_version = 2,
2955 .dir_version = XFS_DFL_DIR_VERSION,
2956 .inode_align = XFS_IFLAG_ALIGN,
2957 .nci = false,
2958 .lazy_sb_counters = true,
2959 .projid16bit = false,
2960 .crcs_enabled = true,
2961 .dirftype = true,
2962 .finobt = true,
2963 .spinodes = false,
2964 .rmapbt = false,
2965 .reflink = false,
2966 .parent_pointers = false,
2967 .nodalign = false,
2968 .nortalign = false,
2969 },
2970 };
2971 struct cli_params cli = {
2972 .xi = &xi,
2973 };
2974 struct mkfs_params cfg = {};
2975
2976 platform_uuid_generate(&cli.uuid);
2977 progname = basename(argv[0]);
2978 setlocale(LC_ALL, "");
2979 bindtextdomain(PACKAGE, LOCALEDIR);
2980 textdomain(PACKAGE);
2981
2982 /*
2983 * TODO: Sourcing defaults from a config file
2984 *
2985 * Before anything else, see if there's a config file with different
2986 * defaults. If a file exists in <package location>, read in the new
2987 * default values and overwrite them in the &dft structure. This way the
2988 * new defaults will apply before we parse the CLI, and the CLI will
2989 * still be able to override them. Emit a message to indicate where the
2990 * defaults being used came from.
2991 */
2992 printf(_("Default configuration sourced from %s\n"), dft.source);
2993
2994 /* copy new defaults into CLI parsing structure */
2995 memcpy(&cli.sb_feat, &dft.sb_feat, sizeof(cli.sb_feat));
2996 memcpy(&cli.fsx, &dft.fsx, sizeof(cli.fsx));
2997
2998 /*
2999 * Initialise cli parameters that can be set to zero to an appropriate
3000 * value so we can tell if they have been set or or changed from the
3001 * default value.
3002 */
3003 cli.loginternal = 1; /* internal by default */
3004
3005 agsize = daflag = dasize = dblocks = 0;
3006 ilflag = imflag = ipflag = isflag = 0;
3007 liflag = laflag = lsflag = lsuflag = lsunitflag = ldflag = lvflag = 0;
3008 loginternal = 1;
3009 logagno = logblocks = rtblocks = rtextblocks = 0;
3010 dry_run = nlflag = nsflag = nvflag = 0;
3011 dirblocklog = dirblocksize = 0;
3012 quiet = 0;
3013 imaxpct = inodelog = inopblock = isize = 0;
3014 dfile = logfile = rtfile = NULL;
3015 dsize = logsize = rtsize = rtextsize = protofile = NULL;
3016 dsu = dsw = dsunit = dswidth = lalign = lsu = lsunit = 0;
3017 dsflag = nodsflag = norsflag = 0;
3018 force_overwrite = 0;
3019 worst_freelist = 0;
3020 memset(&fsx, 0, sizeof(fsx));
3021
3022 memset(&xi, 0, sizeof(xi));
3023 xi.isdirect = LIBXFS_DIRECT;
3024 xi.isreadonly = LIBXFS_EXCLUSIVELY;
3025
3026 while ((c = getopt(argc, argv, "b:d:i:l:L:m:n:KNp:qr:s:CfV")) != EOF) {
3027 switch (c) {
3028 case 'C':
3029 case 'f':
3030 force_overwrite = 1;
3031 break;
3032 case 'b':
3033 case 's':
3034 parse_subopts(c, optarg, &cli);
3035 break;
3036 case 'd':
3037 parse_subopts(c, optarg, &cli);
3038
3039 /* temp don't break code */
3040 agcount = cli.agcount;
3041 if (cli_opt_set(&dopts, D_AGSIZE)) {
3042 agsize = getnum(cli.agsize, &dopts, D_AGSIZE);
3043 dasize = 1;
3044 }
3045 daflag = cli_opt_set(&dopts, D_AGCOUNT);
3046
3047 dsunit = cli.dsunit;
3048 dswidth = cli.dswidth;
3049 dsw = cli.dsw;
3050 if (cli_opt_set(&dopts, D_SU)) {
3051 dsu = getnum(cli.dsu, &dopts, D_SU);
3052 dsflag = 1;
3053 }
3054 dsflag |= cli_opt_set(&dopts, D_SW) ||
3055 cli_opt_set(&dopts, D_SUNIT) ||
3056 cli_opt_set(&dopts, D_SWIDTH);
3057 nodsflag = cli_opt_set(&dopts, D_NOALIGN);
3058
3059 fsx.fsx_xflags |= cli.fsx.fsx_xflags;
3060 fsx.fsx_projid = cli.fsx.fsx_projid;
3061 fsx.fsx_extsize = cli.fsx.fsx_extsize;
3062 /* end temp don't break code */
3063 break;
3064 case 'i':
3065 parse_subopts(c, optarg, &cli);
3066
3067 /* temp don't break code */
3068 isize = cli.inodesize;
3069 inodelog = libxfs_highbit32(isize);
3070 inopblock = cli.inopblock;
3071 ilflag = cli_opt_set(&iopts, I_LOG);
3072 isflag = cli_opt_set(&iopts, I_SIZE);
3073 ipflag = cli_opt_set(&iopts, I_PERBLOCK);
3074
3075 imaxpct = cli.imaxpct;
3076 imflag = cli_opt_set(&iopts, I_MAXPCT);
3077 /* end temp don't break code */
3078 break;
3079 case 'l':
3080 parse_subopts(c, optarg, &cli);
3081
3082 /* temp don't break code */
3083 logagno = cli.logagno;
3084 loginternal = cli.loginternal;
3085 logfile = xi.logname;
3086 logsize = cli.logsize;
3087
3088 lsunit = cli.lsunit;
3089 lsunitflag = cli_opt_set(&lopts, L_SUNIT);
3090 if (cli_opt_set(&lopts, L_SU)) {
3091 lsu = getnum(cli.lsu, &lopts, L_SU);
3092 lsuflag = 1;
3093 }
3094
3095 laflag = cli_opt_set(&lopts, L_AGNUM);
3096 liflag = cli_opt_set(&lopts, L_INTERNAL);
3097 ldflag = cli_opt_set(&lopts, L_NAME) ||
3098 cli_opt_set(&lopts, L_DEV);
3099 lvflag = cli_opt_set(&lopts, L_VERSION);
3100 /* end temp don't break code */
3101 break;
3102 case 'L':
3103 if (strlen(optarg) > sizeof(sbp->sb_fname))
3104 illegal(optarg, "L");
3105 label = optarg;
3106 break;
3107 case 'm':
3108 parse_subopts(c, optarg, &cli);
3109
3110 /* temp don't break code */
3111 platform_uuid_copy(&uuid, &cli.uuid);
3112 /* end temp don't break code */
3113 break;
3114 case 'n':
3115 parse_subopts(c, optarg, &cli);
3116
3117 /* temp don't break code */
3118 if ((nsflag = cli_opt_set(&nopts, N_SIZE)))
3119 dirblocksize = getnum(cli.dirblocksize, &nopts, N_SIZE);
3120 dirblocklog = cli.dirblocklog;
3121
3122 nlflag = cli_opt_set(&nopts, N_LOG);
3123 /* end temp don't break code */
3124 break;
3125 case 'N':
3126 dry_run = 1;
3127 break;
3128 case 'K':
3129 discard = 0;
3130 break;
3131 case 'p':
3132 if (protofile)
3133 respec('p', NULL, 0);
3134 protofile = optarg;
3135 break;
3136 case 'q':
3137 quiet = 1;
3138 break;
3139 case 'r':
3140 parse_subopts(c, optarg, &cli);
3141
3142 /* temp don't break code */
3143 rtextsize = cli.rtextsize;
3144 rtsize = cli.rtsize;
3145 norsflag = cli.sb_feat.nortalign;
3146 /* end temp don't break code */
3147 break;
3148 break;
3149 case 'V':
3150 printf(_("%s version %s\n"), progname, VERSION);
3151 exit(0);
3152 case '?':
3153 unknown(optopt, "");
3154 }
3155 }
3156 if (argc - optind > 1) {
3157 fprintf(stderr, _("extra arguments\n"));
3158 usage();
3159 } else if (argc - optind == 1) {
3160 dfile = xi.volname = getstr(argv[optind], &dopts, D_NAME);
3161 } else
3162 dfile = xi.dname;
3163
3164 /* temp don't break code */
3165 sb_feat = cli.sb_feat;
3166 /* end temp don't break code */
3167
3168 /*
3169 * Extract as much of the valid config as we can from the CLI input
3170 * before opening the libxfs devices.
3171 */
3172 validate_blocksize(&cfg, &cli, &dft);
3173 validate_sectorsize(&cfg, &cli, &dft, &ft, dfile, dry_run,
3174 force_overwrite);
3175 validate_log_sectorsize(&cfg, &cli, &dft);
3176 validate_sb_features(&cfg, &cli);
3177
3178 /* temp don't break code */
3179 sectorsize = cfg.sectorsize;
3180 sectorlog = cfg.sectorlog;
3181 blocksize = cfg.blocksize;
3182 blocklog = cfg.blocklog;
3183 lsectorsize = cfg.lsectorsize;
3184 lsectorlog = cfg.lsectorlog;
3185 platform_uuid_copy(&uuid, &cfg.uuid);
3186 sb_feat = cfg.sb_feat;
3187 /* end temp don't break code */
3188
3189 if (nsflag || nlflag) {
3190 if (dirblocksize < blocksize ||
3191 dirblocksize > XFS_MAX_BLOCKSIZE) {
3192 fprintf(stderr, _("illegal directory block size %d\n"),
3193 dirblocksize);
3194 usage();
3195 }
3196 } else {
3197 if (blocksize < (1 << XFS_MIN_REC_DIRSIZE))
3198 dirblocklog = XFS_MIN_REC_DIRSIZE;
3199 else
3200 dirblocklog = blocklog;
3201 dirblocksize = 1 << dirblocklog;
3202 }
3203
3204
3205 if (dsize) {
3206 uint64_t dbytes;
3207
3208 dbytes = getnum(dsize, &dopts, D_SIZE);
3209 if (dbytes % XFS_MIN_BLOCKSIZE) {
3210 fprintf(stderr,
3211 _("illegal data length %lld, not a multiple of %d\n"),
3212 (long long)dbytes, XFS_MIN_BLOCKSIZE);
3213 usage();
3214 }
3215 dblocks = (xfs_rfsblock_t)(dbytes >> blocklog);
3216 if (dbytes % blocksize)
3217 fprintf(stderr, _("warning: "
3218 "data length %lld not a multiple of %d, truncated to %lld\n"),
3219 (long long)dbytes, blocksize,
3220 (long long)(dblocks << blocklog));
3221 }
3222 if (ipflag) {
3223 inodelog = blocklog - libxfs_highbit32(inopblock);
3224 isize = 1 << inodelog;
3225 } else if (!ilflag && !isflag) {
3226 inodelog = sb_feat.crcs_enabled ? XFS_DINODE_DFL_CRC_LOG
3227 : XFS_DINODE_DFL_LOG;
3228 isize = 1 << inodelog;
3229 }
3230 if (sb_feat.crcs_enabled && inodelog < XFS_DINODE_DFL_CRC_LOG) {
3231 fprintf(stderr,
3232 _("Minimum inode size for CRCs is %d bytes\n"),
3233 1 << XFS_DINODE_DFL_CRC_LOG);
3234 usage();
3235 }
3236
3237 if (logsize) {
3238 uint64_t logbytes;
3239
3240 logbytes = getnum(logsize, &lopts, L_SIZE);
3241 if (logbytes % XFS_MIN_BLOCKSIZE) {
3242 fprintf(stderr,
3243 _("illegal log length %lld, not a multiple of %d\n"),
3244 (long long)logbytes, XFS_MIN_BLOCKSIZE);
3245 usage();
3246 }
3247 logblocks = (xfs_rfsblock_t)(logbytes >> blocklog);
3248 if (logbytes % blocksize)
3249 fprintf(stderr,
3250 _("warning: log length %lld not a multiple of %d, truncated to %lld\n"),
3251 (long long)logbytes, blocksize,
3252 (long long)(logblocks << blocklog));
3253 }
3254 if (rtsize) {
3255 uint64_t rtbytes;
3256
3257 rtbytes = getnum(rtsize, &ropts, R_SIZE);
3258 if (rtbytes % XFS_MIN_BLOCKSIZE) {
3259 fprintf(stderr,
3260 _("illegal rt length %lld, not a multiple of %d\n"),
3261 (long long)rtbytes, XFS_MIN_BLOCKSIZE);
3262 usage();
3263 }
3264 rtblocks = (xfs_rfsblock_t)(rtbytes >> blocklog);
3265 if (rtbytes % blocksize)
3266 fprintf(stderr,
3267 _("warning: rt length %lld not a multiple of %d, truncated to %lld\n"),
3268 (long long)rtbytes, blocksize,
3269 (long long)(rtblocks << blocklog));
3270 }
3271 /*
3272 * If specified, check rt extent size against its constraints.
3273 */
3274 if (rtextsize) {
3275 uint64_t rtextbytes;
3276
3277 rtextbytes = getnum(rtextsize, &ropts, R_EXTSIZE);
3278 if (rtextbytes % blocksize) {
3279 fprintf(stderr,
3280 _("illegal rt extent size %lld, not a multiple of %d\n"),
3281 (long long)rtextbytes, blocksize);
3282 usage();
3283 }
3284 rtextblocks = (xfs_extlen_t)(rtextbytes >> blocklog);
3285 } else {
3286 /*
3287 * If realtime extsize has not been specified by the user,
3288 * and the underlying volume is striped, then set rtextblocks
3289 * to the stripe width.
3290 */
3291 uint64_t rswidth;
3292 uint64_t rtextbytes;
3293
3294 if (!norsflag && !xi.risfile && !(!rtsize && xi.disfile))
3295 rswidth = ft.rtswidth;
3296 else
3297 rswidth = 0;
3298
3299 /* check that rswidth is a multiple of fs blocksize */
3300 if (!norsflag && rswidth && !(BBTOB(rswidth) % blocksize)) {
3301 rswidth = DTOBT(rswidth);
3302 rtextbytes = rswidth << blocklog;
3303 if (XFS_MIN_RTEXTSIZE <= rtextbytes &&
3304 (rtextbytes <= XFS_MAX_RTEXTSIZE)) {
3305 rtextblocks = rswidth;
3306 }
3307 }
3308 if (!rtextblocks) {
3309 rtextblocks = (blocksize < XFS_MIN_RTEXTSIZE) ?
3310 XFS_MIN_RTEXTSIZE >> blocklog : 1;
3311 }
3312 }
3313 ASSERT(rtextblocks);
3314
3315 /*
3316 * Check some argument sizes against mins, maxes.
3317 */
3318 if (isize > blocksize / XFS_MIN_INODE_PERBLOCK ||
3319 isize < XFS_DINODE_MIN_SIZE ||
3320 isize > XFS_DINODE_MAX_SIZE) {
3321 int maxsz;
3322
3323 fprintf(stderr, _("illegal inode size %d\n"), isize);
3324 maxsz = MIN(blocksize / XFS_MIN_INODE_PERBLOCK,
3325 XFS_DINODE_MAX_SIZE);
3326 if (XFS_DINODE_MIN_SIZE == maxsz)
3327 fprintf(stderr,
3328 _("allowable inode size with %d byte blocks is %d\n"),
3329 blocksize, XFS_DINODE_MIN_SIZE);
3330 else
3331 fprintf(stderr,
3332 _("allowable inode size with %d byte blocks is between %d and %d\n"),
3333 blocksize, XFS_DINODE_MIN_SIZE, maxsz);
3334 exit(1);
3335 }
3336
3337 calc_stripe_factors(dsu, dsw, sectorsize, lsu, lsectorsize,
3338 &dsunit, &dswidth, &lsunit);
3339
3340 /* If sunit & swidth were manually specified as 0, same as noalign */
3341 if (dsflag && !dsunit && !dswidth)
3342 nodsflag = 1;
3343
3344 xi.setblksize = sectorsize;
3345
3346 /*
3347 * Initialize. This will open the log and rt devices as well.
3348 */
3349 if (!libxfs_init(&xi))
3350 usage();
3351 if (!xi.ddev) {
3352 fprintf(stderr, _("no device name given in argument list\n"));
3353 usage();
3354 }
3355
3356 /*
3357 * Ok, Linux only has a 1024-byte resolution on device _size_,
3358 * and the sizes below are in basic 512-byte blocks,
3359 * so if we have (size % 2), on any partition, we can't get
3360 * to the last 512 bytes. The same issue exists for larger
3361 * sector sizes - we cannot write past the last sector.
3362 *
3363 * So, we reduce the size (in basic blocks) to a perfect
3364 * multiple of the sector size, or 1024, whichever is larger.
3365 */
3366
3367 sector_mask = (uint64_t)-1 << (MAX(sectorlog, 10) - BBSHIFT);
3368 xi.dsize &= sector_mask;
3369 xi.rtsize &= sector_mask;
3370 xi.logBBsize &= (uint64_t)-1 << (MAX(lsectorlog, 10) - BBSHIFT);
3371
3372
3373 /* don't do discards on print-only runs or on files */
3374 if (discard && !dry_run) {
3375 if (!xi.disfile)
3376 discard_blocks(xi.ddev, xi.dsize);
3377 if (xi.rtdev && !xi.risfile)
3378 discard_blocks(xi.rtdev, xi.rtsize);
3379 if (xi.logdev && xi.logdev != xi.ddev && !xi.lisfile)
3380 discard_blocks(xi.logdev, xi.logBBsize);
3381 }
3382
3383 if (!liflag && !ldflag)
3384 loginternal = xi.logdev == 0;
3385 if (xi.logname)
3386 logfile = xi.logname;
3387 else if (loginternal)
3388 logfile = _("internal log");
3389 else if (xi.volname && xi.logdev)
3390 logfile = _("volume log");
3391 else if (!ldflag) {
3392 fprintf(stderr, _("no log subvolume or internal log\n"));
3393 usage();
3394 }
3395 if (xi.rtname)
3396 rtfile = xi.rtname;
3397 else
3398 if (xi.volname && xi.rtdev)
3399 rtfile = _("volume rt");
3400 else if (!xi.rtdev)
3401 rtfile = _("none");
3402 if (dsize && xi.dsize > 0 && dblocks > DTOBT(xi.dsize)) {
3403 fprintf(stderr,
3404 _("size %s specified for data subvolume is too large, "
3405 "maximum is %lld blocks\n"),
3406 dsize, (long long)DTOBT(xi.dsize));
3407 usage();
3408 } else if (!dsize && xi.dsize > 0)
3409 dblocks = DTOBT(xi.dsize);
3410 else if (!dsize) {
3411 fprintf(stderr, _("can't get size of data subvolume\n"));
3412 usage();
3413 }
3414 if (dblocks < XFS_MIN_DATA_BLOCKS) {
3415 fprintf(stderr,
3416 _("size %lld of data subvolume is too small, minimum %d blocks\n"),
3417 (long long)dblocks, XFS_MIN_DATA_BLOCKS);
3418 usage();
3419 }
3420
3421 if (loginternal && xi.logdev) {
3422 fprintf(stderr,
3423 _("can't have both external and internal logs\n"));
3424 usage();
3425 } else if (loginternal && sectorsize != lsectorsize) {
3426 fprintf(stderr,
3427 _("data and log sector sizes must be equal for internal logs\n"));
3428 usage();
3429 }
3430
3431 if (xi.dbsize > sectorsize) {
3432 fprintf(stderr, _(
3433 "Warning: the data subvolume sector size %u is less than the sector size \n\
3434 reported by the device (%u).\n"),
3435 sectorsize, xi.dbsize);
3436 }
3437 if (!loginternal && xi.lbsize > lsectorsize) {
3438 fprintf(stderr, _(
3439 "Warning: the log subvolume sector size %u is less than the sector size\n\
3440 reported by the device (%u).\n"),
3441 lsectorsize, xi.lbsize);
3442 }
3443 if (rtsize && xi.rtsize > 0 && xi.rtbsize > sectorsize) {
3444 fprintf(stderr, _(
3445 "Warning: the realtime subvolume sector size %u is less than the sector size\n\
3446 reported by the device (%u).\n"),
3447 sectorsize, xi.rtbsize);
3448 }
3449
3450 if (rtsize && xi.rtsize > 0 && rtblocks > DTOBT(xi.rtsize)) {
3451 fprintf(stderr,
3452 _("size %s specified for rt subvolume is too large, "
3453 "maximum is %lld blocks\n"),
3454 rtsize, (long long)DTOBT(xi.rtsize));
3455 usage();
3456 } else if (!rtsize && xi.rtsize > 0)
3457 rtblocks = DTOBT(xi.rtsize);
3458 else if (rtsize && !xi.rtdev) {
3459 fprintf(stderr,
3460 _("size specified for non-existent rt subvolume\n"));
3461 usage();
3462 }
3463 if (xi.rtdev) {
3464 rtextents = rtblocks / rtextblocks;
3465 nbmblocks = (xfs_extlen_t)howmany(rtextents, NBBY * blocksize);
3466 } else {
3467 rtextents = rtblocks = 0;
3468 nbmblocks = 0;
3469 }
3470
3471 if (!nodsflag) {
3472 if (dsunit) {
3473 if (ft.dsunit && ft.dsunit != dsunit) {
3474 fprintf(stderr,
3475 _("%s: Specified data stripe unit %d "
3476 "is not the same as the volume stripe "
3477 "unit %d\n"),
3478 progname, dsunit, ft.dsunit);
3479 }
3480 if (ft.dswidth && ft.dswidth != dswidth) {
3481 fprintf(stderr,
3482 _("%s: Specified data stripe width %d "
3483 "is not the same as the volume stripe "
3484 "width %d\n"),
3485 progname, dswidth, ft.dswidth);
3486 }
3487 } else {
3488 dsunit = ft.dsunit;
3489 dswidth = ft.dswidth;
3490 nodsflag = 1;
3491 }
3492 } /* else dsunit & dswidth can't be set if nodsflag is set */
3493
3494 if (dasize) { /* User-specified AG size */
3495 /*
3496 * Check specified agsize is a multiple of blocksize.
3497 */
3498 if (agsize % blocksize) {
3499 fprintf(stderr,
3500 _("agsize (%lld) not a multiple of fs blk size (%d)\n"),
3501 (long long)agsize, blocksize);
3502 usage();
3503 }
3504 agsize /= blocksize;
3505 agcount = dblocks / agsize + (dblocks % agsize != 0);
3506
3507 } else if (daflag) { /* User-specified AG count */
3508 agsize = dblocks / agcount + (dblocks % agcount != 0);
3509 } else {
3510 calc_default_ag_geometry(blocklog, dblocks,
3511 dsunit | dswidth, &agsize, &agcount);
3512 }
3513
3514 /*
3515 * If dsunit is a multiple of fs blocksize, then check that is a
3516 * multiple of the agsize too
3517 */
3518 if (dsunit && !(BBTOB(dsunit) % blocksize) &&
3519 dswidth && !(BBTOB(dswidth) % blocksize)) {
3520
3521 /* convert from 512 byte blocks to fs blocksize */
3522 dsunit = DTOBT(dsunit);
3523 dswidth = DTOBT(dswidth);
3524
3525 /*
3526 * agsize is not a multiple of dsunit
3527 */
3528 if ((agsize % dsunit) != 0) {
3529 /*
3530 * Round up to stripe unit boundary. Also make sure
3531 * that agsize is still larger than
3532 * XFS_AG_MIN_BLOCKS(blocklog)
3533 */
3534 tmp_agsize = ((agsize + (dsunit - 1))/ dsunit) * dsunit;
3535 /*
3536 * Round down to stripe unit boundary if rounding up
3537 * created an AG size that is larger than the AG max.
3538 */
3539 if (tmp_agsize > XFS_AG_MAX_BLOCKS(blocklog))
3540 tmp_agsize = ((agsize) / dsunit) * dsunit;
3541
3542 if ((tmp_agsize >= XFS_AG_MIN_BLOCKS(blocklog)) &&
3543 (tmp_agsize <= XFS_AG_MAX_BLOCKS(blocklog))) {
3544 agsize = tmp_agsize;
3545 if (!daflag)
3546 agcount = dblocks/agsize +
3547 (dblocks % agsize != 0);
3548 if (dasize)
3549 fprintf(stderr,
3550 _("agsize rounded to %lld, swidth = %d\n"),
3551 (long long)agsize, dswidth);
3552 } else {
3553 if (nodsflag) {
3554 dsunit = dswidth = 0;
3555 } else {
3556 /*
3557 * agsize is out of bounds, this will
3558 * print nice details & exit.
3559 */
3560 validate_ag_geometry(blocklog, dblocks,
3561 agsize, agcount);
3562 exit(1);
3563 }
3564 }
3565 }
3566 if (dswidth && ((agsize % dswidth) == 0)
3567 && (dswidth != dsunit)
3568 && (agcount > 1)) {
3569 /* This is a non-optimal configuration because all AGs
3570 * start on the same disk in the stripe. Changing
3571 * the AG size by one sunit will guarantee that this
3572 * does not happen.
3573 */
3574 tmp_agsize = agsize - dsunit;
3575 if (tmp_agsize < XFS_AG_MIN_BLOCKS(blocklog)) {
3576 tmp_agsize = agsize + dsunit;
3577 if (dblocks < agsize) {
3578 /* oh well, nothing to do */
3579 tmp_agsize = agsize;
3580 }
3581 }
3582 if (daflag || dasize) {
3583 fprintf(stderr, _(
3584 "Warning: AG size is a multiple of stripe width. This can cause performance\n\
3585 problems by aligning all AGs on the same disk. To avoid this, run mkfs with\n\
3586 an AG size that is one stripe unit smaller, for example %llu.\n"),
3587 (unsigned long long)tmp_agsize);
3588 } else {
3589 agsize = tmp_agsize;
3590 agcount = dblocks/agsize + (dblocks % agsize != 0);
3591 /*
3592 * If the last AG is too small, reduce the
3593 * filesystem size and drop the blocks.
3594 */
3595 if ( dblocks % agsize != 0 &&
3596 (dblocks % agsize <
3597 XFS_AG_MIN_BLOCKS(blocklog))) {
3598 dblocks = (xfs_rfsblock_t)((agcount - 1) * agsize);
3599 agcount--;
3600 ASSERT(agcount != 0);
3601 }
3602 }
3603 }
3604 } else {
3605 if (nodsflag)
3606 dsunit = dswidth = 0;
3607 else {
3608 fprintf(stderr,
3609 _("%s: Stripe unit(%d) or stripe width(%d) is "
3610 "not a multiple of the block size(%d)\n"),
3611 progname, BBTOB(dsunit), BBTOB(dswidth),
3612 blocksize);
3613 exit(1);
3614 }
3615 }
3616
3617 /*
3618 * If the last AG is too small, reduce the filesystem size
3619 * and drop the blocks.
3620 */
3621 if ( dblocks % agsize != 0 &&
3622 (dblocks % agsize < XFS_AG_MIN_BLOCKS(blocklog))) {
3623 ASSERT(!daflag);
3624 dblocks = (xfs_rfsblock_t)((agcount - 1) * agsize);
3625 agcount--;
3626 ASSERT(agcount != 0);
3627 }
3628
3629 validate_ag_geometry(blocklog, dblocks, agsize, agcount);
3630
3631 if (!imflag)
3632 imaxpct = calc_default_imaxpct(blocklog, dblocks);
3633
3634 /*
3635 * check that log sunit is modulo fsblksize or default it to dsunit.
3636 */
3637
3638 if (lsunit) {
3639 /* convert from 512 byte blocks to fs blocks */
3640 lsunit = DTOBT(lsunit);
3641 } else if (sb_feat.log_version == 2 && loginternal && dsunit) {
3642 /* lsunit and dsunit now in fs blocks */
3643 lsunit = dsunit;
3644 }
3645
3646 if (sb_feat.log_version == 2 && (lsunit * blocksize) > 256 * 1024) {
3647 /* Warn only if specified on commandline */
3648 if (lsuflag || lsunitflag) {
3649 fprintf(stderr,
3650 _("log stripe unit (%d bytes) is too large (maximum is 256KiB)\n"),
3651 (lsunit * blocksize));
3652 fprintf(stderr,
3653 _("log stripe unit adjusted to 32KiB\n"));
3654 }
3655 lsunit = (32 * 1024) >> blocklog;
3656 }
3657
3658 min_logblocks = max_trans_res(agsize,
3659 sb_feat.crcs_enabled, sb_feat.dir_version,
3660 sectorlog, blocklog, inodelog, dirblocklog,
3661 sb_feat.log_version, lsunit, sb_feat.finobt,
3662 sb_feat.rmapbt, sb_feat.reflink,
3663 sb_feat.inode_align);
3664 ASSERT(min_logblocks);
3665 min_logblocks = MAX(XFS_MIN_LOG_BLOCKS, min_logblocks);
3666 if (!logsize && dblocks >= (1024*1024*1024) >> blocklog)
3667 min_logblocks = MAX(min_logblocks, XFS_MIN_LOG_BYTES>>blocklog);
3668 if (logsize && xi.logBBsize > 0 && logblocks > DTOBT(xi.logBBsize)) {
3669 fprintf(stderr,
3670 _("size %s specified for log subvolume is too large, maximum is %lld blocks\n"),
3671 logsize, (long long)DTOBT(xi.logBBsize));
3672 usage();
3673 } else if (!logsize && xi.logBBsize > 0) {
3674 logblocks = DTOBT(xi.logBBsize);
3675 } else if (logsize && !xi.logdev && !loginternal) {
3676 fprintf(stderr,
3677 _("size specified for non-existent log subvolume\n"));
3678 usage();
3679 } else if (loginternal && logsize && logblocks >= dblocks) {
3680 fprintf(stderr, _("size %lld too large for internal log\n"),
3681 (long long)logblocks);
3682 usage();
3683 } else if (!loginternal && !xi.logdev) {
3684 logblocks = 0;
3685 } else if (loginternal && !logsize) {
3686
3687 if (dblocks < GIGABYTES(1, blocklog)) {
3688 /* tiny filesystems get minimum sized logs. */
3689 logblocks = min_logblocks;
3690 } else if (dblocks < GIGABYTES(16, blocklog)) {
3691
3692 /*
3693 * For small filesystems, we want to use the
3694 * XFS_MIN_LOG_BYTES for filesystems smaller than 16G if
3695 * at all possible, ramping up to 128MB at 256GB.
3696 */
3697 logblocks = MIN(XFS_MIN_LOG_BYTES >> blocklog,
3698 min_logblocks * XFS_DFL_LOG_FACTOR);
3699 } else {
3700 /*
3701 * With a 2GB max log size, default to maximum size
3702 * at 4TB. This keeps the same ratio from the older
3703 * max log size of 128M at 256GB fs size. IOWs,
3704 * the ratio of fs size to log size is 2048:1.
3705 */
3706 logblocks = (dblocks << blocklog) / 2048;
3707 logblocks = logblocks >> blocklog;
3708 }
3709
3710 /* Ensure the chosen size meets minimum log size requirements */
3711 logblocks = MAX(min_logblocks, logblocks);
3712
3713 /* make sure the log fits wholly within an AG */
3714 if (logblocks >= agsize)
3715 logblocks = min_logblocks;
3716
3717 /* and now clamp the size to the maximum supported size */
3718 logblocks = MIN(logblocks, XFS_MAX_LOG_BLOCKS);
3719 if ((logblocks << blocklog) > XFS_MAX_LOG_BYTES)
3720 logblocks = XFS_MAX_LOG_BYTES >> blocklog;
3721
3722 }
3723 validate_log_size(logblocks, blocklog, min_logblocks);
3724
3725 protostring = setup_proto(protofile);
3726 mp = &mbuf;
3727 sbp = &mp->m_sb;
3728 memset(mp, 0, sizeof(xfs_mount_t));
3729 sbp->sb_blocklog = (uint8_t)blocklog;
3730 sbp->sb_sectlog = (uint8_t)sectorlog;
3731 sbp->sb_agblklog = (uint8_t)log2_roundup((unsigned int)agsize);
3732 sbp->sb_agblocks = (xfs_agblock_t)agsize;
3733 mp->m_blkbb_log = sbp->sb_blocklog - BBSHIFT;
3734 mp->m_sectbb_log = sbp->sb_sectlog - BBSHIFT;
3735
3736 /*
3737 * sb_versionnum, finobt and rmapbt flags must be set before we use
3738 * libxfs_prealloc_blocks().
3739 */
3740 sb_set_features(&mp->m_sb, &sb_feat, sectorsize, lsectorsize, dsunit);
3741
3742
3743 if (loginternal) {
3744 /*
3745 * Readjust the log size to fit within an AG if it was sized
3746 * automatically.
3747 */
3748 if (!logsize) {
3749 logblocks = MIN(logblocks,
3750 libxfs_alloc_ag_max_usable(mp));
3751
3752 /* revalidate the log size is valid if we changed it */
3753 validate_log_size(logblocks, blocklog, min_logblocks);
3754 }
3755 if (logblocks > agsize - libxfs_prealloc_blocks(mp)) {
3756 fprintf(stderr,
3757 _("internal log size %lld too large, must fit in allocation group\n"),
3758 (long long)logblocks);
3759 usage();
3760 }
3761
3762 if (laflag) {
3763 if (logagno >= agcount) {
3764 fprintf(stderr,
3765 _("log ag number %d too large, must be less than %lld\n"),
3766 logagno, (long long)agcount);
3767 usage();
3768 }
3769 } else
3770 logagno = (xfs_agnumber_t)(agcount / 2);
3771
3772 logstart = XFS_AGB_TO_FSB(mp, logagno, libxfs_prealloc_blocks(mp));
3773 /*
3774 * Align the logstart at stripe unit boundary.
3775 */
3776 if (lsunit) {
3777 logstart = fixup_internal_log_stripe(mp,
3778 lsflag, logstart, agsize, lsunit,
3779 &logblocks, blocklog, &lalign);
3780 } else if (dsunit) {
3781 logstart = fixup_internal_log_stripe(mp,
3782 lsflag, logstart, agsize, dsunit,
3783 &logblocks, blocklog, &lalign);
3784 }
3785 } else {
3786 logstart = 0;
3787 if (lsunit)
3788 fixup_log_stripe_unit(lsflag, lsunit,
3789 &logblocks, blocklog);
3790 }
3791 validate_log_size(logblocks, blocklog, min_logblocks);
3792
3793 /* Temp support code to set up mkfs cfg parameters */
3794 cfg.blocksize = blocksize;
3795 cfg.blocklog = blocklog;
3796 cfg.sectorsize = sectorsize;
3797 cfg.sectorlog = sectorlog;
3798 cfg.lsectorsize = lsectorsize;
3799 cfg.lsectorlog = lsectorlog;
3800 cfg.dirblocksize = dirblocksize;
3801 cfg.dirblocklog = dirblocklog;
3802 cfg.inodesize = isize;
3803 cfg.inodelog = inodelog;
3804 cfg.inopblock = inopblock;
3805
3806 cfg.dblocks = dblocks;
3807 cfg.logblocks = logblocks;
3808 cfg.rtblocks = rtblocks;
3809 cfg.rtextblocks = rtextblocks;
3810 cfg.rtextents = rtextents;
3811 cfg.rtbmblocks = nbmblocks;
3812 cfg.dsunit = dsunit;
3813 cfg.dswidth = dswidth;
3814 cfg.lsunit = lsunit;
3815 cfg.agsize = agsize;
3816 cfg.agcount = agcount;
3817 cfg.imaxpct = imaxpct;
3818 cfg.loginternal = loginternal;
3819 cfg.logstart = logstart;
3820 cfg.logagno = logagno;
3821 cfg.label = label;
3822 platform_uuid_copy(&cfg.uuid, &uuid);
3823 memcpy(&cfg.sb_feat, &sb_feat, sizeof(sb_feat));
3824 /* end temp support code */
3825
3826 if (!quiet || dry_run) {
3827 print_mkfs_cfg(&cfg, dfile, logfile, rtfile);
3828 if (dry_run)
3829 exit(0);
3830 }
3831
3832 /*
3833 * Finish setting up the superblock state ready for formatting.
3834 */
3835 setup_superblock(&cfg, mp, sbp);
3836
3837 /*
3838 * we need the libxfs buffer cache from here on in.
3839 */
3840 libxfs_buftarg_init(mp, xi.ddev, xi.logdev, xi.rtdev);
3841
3842 /*
3843 * Before we mount the filesystem we need to make sure the devices have
3844 * enough of the filesystem structure on them that allows libxfs to
3845 * mount.
3846 */
3847 prepare_devices(&cfg, &xi, mp, sbp, force_overwrite);
3848 mp = libxfs_mount(mp, sbp, xi.ddev, xi.logdev, xi.rtdev, 0);
3849 if (mp == NULL) {
3850 fprintf(stderr, _("%s: filesystem failed to initialize\n"),
3851 progname);
3852 exit(1);
3853 }
3854
3855 /*
3856 * Initialise all the static on disk metadata.
3857 */
3858 for (agno = 0; agno < cfg.agcount; agno++)
3859 initialise_ag_headers(&cfg, mp, sbp, agno, &worst_freelist);
3860
3861 /*
3862 * Initialise the freespace freelists (i.e. AGFLs) in each AG.
3863 */
3864 for (agno = 0; agno < cfg.agcount; agno++)
3865 initialise_ag_freespace(mp, agno, worst_freelist);
3866
3867 /*
3868 * Allocate the root inode and anything else in the proto file.
3869 */
3870 parse_proto(mp, &fsx, &protostring);
3871
3872 /*
3873 * Protect ourselves against possible stupidity
3874 */
3875 if (XFS_INO_TO_AGNO(mp, mp->m_sb.sb_rootino) != 0) {
3876 fprintf(stderr,
3877 _("%s: root inode created in AG %u, not AG 0\n"),
3878 progname, XFS_INO_TO_AGNO(mp, mp->m_sb.sb_rootino));
3879 exit(1);
3880 }
3881
3882 /*
3883 * Re-write multiple secondary superblocks with rootinode field set
3884 */
3885 if (mp->m_sb.sb_agcount > 1)
3886 rewrite_secondary_superblocks(mp);
3887
3888 /*
3889 * Dump all inodes and buffers before marking us all done.
3890 * Need to drop references to inodes we still hold, first.
3891 */
3892 libxfs_rtmount_destroy(mp);
3893 libxfs_bcache_purge();
3894
3895 /*
3896 * Mark the filesystem ok.
3897 */
3898 buf = libxfs_getsb(mp, LIBXFS_EXIT_ON_FAILURE);
3899 (XFS_BUF_TO_SBP(buf))->sb_inprogress = 0;
3900 libxfs_writebuf(buf, LIBXFS_EXIT_ON_FAILURE);
3901
3902 libxfs_umount(mp);
3903 if (xi.rtdev)
3904 libxfs_device_close(xi.rtdev);
3905 if (xi.logdev && xi.logdev != xi.ddev)
3906 libxfs_device_close(xi.logdev);
3907 libxfs_device_close(xi.ddev);
3908
3909 return 0;
3910 }
3911
3912 static void
3913 conflict(
3914 char opt,
3915 const char *tab[],
3916 int oldidx,
3917 int newidx)
3918 {
3919 fprintf(stderr, _("Cannot specify both -%c %s and -%c %s\n"),
3920 opt, tab[oldidx], opt, tab[newidx]);
3921 usage();
3922 }
3923
3924
3925 static void
3926 illegal(
3927 const char *value,
3928 const char *opt)
3929 {
3930 fprintf(stderr, _("Illegal value %s for -%s option\n"), value, opt);
3931 usage();
3932 }
3933
3934 static int
3935 ispow2(
3936 unsigned int i)
3937 {
3938 return (i & (i - 1)) == 0;
3939 }
3940
3941 static void __attribute__((noreturn))
3942 reqval(
3943 char opt,
3944 const char *tab[],
3945 int idx)
3946 {
3947 fprintf(stderr, _("-%c %s option requires a value\n"), opt, tab[idx]);
3948 usage();
3949 }
3950
3951 static void
3952 respec(
3953 char opt,
3954 const char *tab[],
3955 int idx)
3956 {
3957 fprintf(stderr, "-%c ", opt);
3958 if (tab)
3959 fprintf(stderr, "%s ", tab[idx]);
3960 fprintf(stderr, _("option respecified\n"));
3961 usage();
3962 }
3963
3964 static void
3965 unknown(
3966 char opt,
3967 char *s)
3968 {
3969 fprintf(stderr, _("unknown option -%c %s\n"), opt, s);
3970 usage();
3971 }
3972
3973 long long
3974 cvtnum(
3975 unsigned int blksize,
3976 unsigned int sectsize,
3977 const char *s)
3978 {
3979 long long i;
3980 char *sp;
3981 int c;
3982
3983 i = strtoll(s, &sp, 0);
3984 if (i == 0 && sp == s)
3985 return -1LL;
3986 if (*sp == '\0')
3987 return i;
3988
3989 if (sp[1] != '\0')
3990 return -1LL;
3991
3992 if (*sp == 'b') {
3993 if (!blksize) {
3994 fprintf(stderr,
3995 _("Blocksize must be provided prior to using 'b' suffix.\n"));
3996 usage();
3997 } else {
3998 return i * blksize;
3999 }
4000 }
4001 if (*sp == 's') {
4002 if (!sectsize) {
4003 fprintf(stderr,
4004 _("Sectorsize must be specified prior to using 's' suffix.\n"));
4005 usage();
4006 } else {
4007 return i * sectsize;
4008 }
4009 }
4010
4011 c = tolower(*sp);
4012 switch (c) {
4013 case 'e':
4014 i *= 1024LL;
4015 /* fall through */
4016 case 'p':
4017 i *= 1024LL;
4018 /* fall through */
4019 case 't':
4020 i *= 1024LL;
4021 /* fall through */
4022 case 'g':
4023 i *= 1024LL;
4024 /* fall through */
4025 case 'm':
4026 i *= 1024LL;
4027 /* fall through */
4028 case 'k':
4029 return i * 1024LL;
4030 default:
4031 break;
4032 }
4033 return -1LL;
4034 }
4035
4036 static void __attribute__((noreturn))
4037 usage( void )
4038 {
4039 fprintf(stderr, _("Usage: %s\n\
4040 /* blocksize */ [-b log=n|size=num]\n\
4041 /* metadata */ [-m crc=0|1,finobt=0|1,uuid=xxx,rmapbt=0|1,reflink=0|1]\n\
4042 /* data subvol */ [-d agcount=n,agsize=n,file,name=xxx,size=num,\n\
4043 (sunit=value,swidth=value|su=num,sw=num|noalign),\n\
4044 sectlog=n|sectsize=num\n\
4045 /* force overwrite */ [-f]\n\
4046 /* inode size */ [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,\n\
4047 projid32bit=0|1,sparse=0|1]\n\
4048 /* no discard */ [-K]\n\
4049 /* log subvol */ [-l agnum=n,internal,size=num,logdev=xxx,version=n\n\
4050 sunit=value|su=num,sectlog=n|sectsize=num,\n\
4051 lazy-count=0|1]\n\
4052 /* label */ [-L label (maximum 12 characters)]\n\
4053 /* naming */ [-n log=n|size=num,version=2|ci,ftype=0|1]\n\
4054 /* no-op info only */ [-N]\n\
4055 /* prototype file */ [-p fname]\n\
4056 /* quiet */ [-q]\n\
4057 /* realtime subvol */ [-r extsize=num,size=num,rtdev=xxx]\n\
4058 /* sectorsize */ [-s log=n|size=num]\n\
4059 /* version */ [-V]\n\
4060 devicename\n\
4061 <devicename> is required unless -d name=xxx is given.\n\
4062 <num> is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),\n\
4063 xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).\n\
4064 <value> is xxx (512 byte blocks).\n"),
4065 progname);
4066 exit(1);
4067 }
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