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[thirdparty/e2fsprogs.git] / misc / mke2fs.c
1 /*
2 * mke2fs.c - Make a ext2fs filesystem.
3 *
4 * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
5 * 2003, 2004, 2005 by Theodore Ts'o.
6 *
7 * %Begin-Header%
8 * This file may be redistributed under the terms of the GNU Public
9 * License.
10 * %End-Header%
11 */
12
13 /* Usage: mke2fs [options] device
14 *
15 * The device may be a block device or a image of one, but this isn't
16 * enforced (but it's not much fun on a character device :-).
17 */
18
19 #define _XOPEN_SOURCE 600 /* for inclusion of PATH_MAX */
20
21 #include "config.h"
22 #include <stdio.h>
23 #include <string.h>
24 #include <strings.h>
25 #include <ctype.h>
26 #include <time.h>
27 #ifdef __linux__
28 #include <sys/utsname.h>
29 #include <linux/version.h>
30 #endif
31 #ifdef HAVE_GETOPT_H
32 #include <getopt.h>
33 #else
34 extern char *optarg;
35 extern int optind;
36 #endif
37 #ifdef HAVE_UNISTD_H
38 #include <unistd.h>
39 #endif
40 #ifdef HAVE_STDLIB_H
41 #include <stdlib.h>
42 #endif
43 #ifdef HAVE_ERRNO_H
44 #include <errno.h>
45 #endif
46 #include <sys/ioctl.h>
47 #include <libgen.h>
48 #include <limits.h>
49 #include <blkid/blkid.h>
50
51 #include "ext2fs/ext2_fs.h"
52 #include "ext2fs/ext2fsP.h"
53 #include "uuid/uuid.h"
54 #include "util.h"
55 #include "profile.h"
56 #include "prof_err.h"
57 #include "../version.h"
58 #include "quota/quotaio.h"
59 #include "mke2fs.h"
60 #include "create_inode.h"
61
62 #define STRIDE_LENGTH 8
63
64 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
65
66 #ifndef __sparc__
67 #define ZAP_BOOTBLOCK
68 #endif
69
70 #define DISCARD_STEP_MB (2048)
71
72 extern int isatty(int);
73 extern FILE *fpopen(const char *cmd, const char *mode);
74
75 const char * program_name = "mke2fs";
76 static const char * device_name /* = NULL */;
77
78 /* Command line options */
79 static int cflag;
80 int verbose;
81 int quiet;
82 static int super_only;
83 static int discard = 1; /* attempt to discard device before fs creation */
84 static int direct_io;
85 static int force;
86 static int noaction;
87 static int num_backups = 2; /* number of backup bg's for sparse_super2 */
88 static uid_t root_uid;
89 static gid_t root_gid;
90 int journal_size;
91 int journal_flags;
92 static int lazy_itable_init;
93 static int packed_meta_blocks;
94 static char *bad_blocks_filename = NULL;
95 static __u32 fs_stride;
96 static int quotatype = -1; /* Initialize both user and group quotas by default */
97 static __u64 offset;
98 static blk64_t journal_location = ~0LL;
99 static int proceed_delay = -1;
100 static blk64_t dev_size;
101
102 static struct ext2_super_block fs_param;
103 static char *fs_uuid = NULL;
104 static char *creator_os;
105 static char *volume_label;
106 static char *mount_dir;
107 char *journal_device;
108 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
109 char **fs_types;
110 const char *root_dir; /* Copy files from the specified directory */
111
112 static profile_t profile;
113
114 static int sys_page_size = 4096;
115
116 static int errors_behavior = 0;
117
118 static void usage(void)
119 {
120 fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
121 "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
122 "[-J journal-options]\n"
123 "\t[-G flex-group-size] [-N number-of-inodes] "
124 "[-d root-directory]\n"
125 "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
126 "\t[-g blocks-per-group] [-L volume-label] "
127 "[-M last-mounted-directory]\n\t[-O feature[,...]] "
128 "[-r fs-revision] [-E extended-option[,...]]\n"
129 "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
130 "[-jnqvDFKSV] device [blocks-count]\n"),
131 program_name);
132 exit(1);
133 }
134
135 static int int_log2(unsigned long long arg)
136 {
137 int l = 0;
138
139 arg >>= 1;
140 while (arg) {
141 l++;
142 arg >>= 1;
143 }
144 return l;
145 }
146
147 int int_log10(unsigned long long arg)
148 {
149 int l;
150
151 for (l=0; arg ; l++)
152 arg = arg / 10;
153 return l;
154 }
155
156 #ifdef __linux__
157 static int parse_version_number(const char *s)
158 {
159 int major, minor, rev;
160 char *endptr;
161 const char *cp = s;
162
163 if (!s)
164 return 0;
165 major = strtol(cp, &endptr, 10);
166 if (cp == endptr || *endptr != '.')
167 return 0;
168 cp = endptr + 1;
169 minor = strtol(cp, &endptr, 10);
170 if (cp == endptr || *endptr != '.')
171 return 0;
172 cp = endptr + 1;
173 rev = strtol(cp, &endptr, 10);
174 if (cp == endptr)
175 return 0;
176 return KERNEL_VERSION(major, minor, rev);
177 }
178
179 static int is_before_linux_ver(unsigned int major, unsigned int minor,
180 unsigned int rev)
181 {
182 struct utsname ut;
183 static int linux_version_code = -1;
184
185 if (uname(&ut)) {
186 perror("uname");
187 exit(1);
188 }
189 if (linux_version_code < 0)
190 linux_version_code = parse_version_number(ut.release);
191 if (linux_version_code == 0)
192 return 0;
193
194 return linux_version_code < KERNEL_VERSION(major, minor, rev);
195 }
196 #else
197 static int is_before_linux_ver(unsigned int major, unsigned int minor,
198 unsigned int rev)
199 {
200 return 0;
201 }
202 #endif
203
204 /*
205 * Helper function for read_bb_file and test_disk
206 */
207 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
208 {
209 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
210 return;
211 }
212
213 /*
214 * Reads the bad blocks list from a file
215 */
216 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
217 const char *bad_blocks_file)
218 {
219 FILE *f;
220 errcode_t retval;
221
222 f = fopen(bad_blocks_file, "r");
223 if (!f) {
224 com_err("read_bad_blocks_file", errno,
225 _("while trying to open %s"), bad_blocks_file);
226 exit(1);
227 }
228 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
229 fclose (f);
230 if (retval) {
231 com_err("ext2fs_read_bb_FILE", retval, "%s",
232 _("while reading in list of bad blocks from file"));
233 exit(1);
234 }
235 }
236
237 /*
238 * Runs the badblocks program to test the disk
239 */
240 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
241 {
242 FILE *f;
243 errcode_t retval;
244 char buf[1024];
245
246 sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
247 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
248 fs->device_name, ext2fs_blocks_count(fs->super)-1);
249 if (verbose)
250 printf(_("Running command: %s\n"), buf);
251 f = popen(buf, "r");
252 if (!f) {
253 com_err("popen", errno,
254 _("while trying to run '%s'"), buf);
255 exit(1);
256 }
257 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
258 pclose(f);
259 if (retval) {
260 com_err("ext2fs_read_bb_FILE", retval, "%s",
261 _("while processing list of bad blocks from program"));
262 exit(1);
263 }
264 }
265
266 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
267 {
268 dgrp_t i;
269 blk_t j;
270 unsigned must_be_good;
271 blk_t blk;
272 badblocks_iterate bb_iter;
273 errcode_t retval;
274 blk_t group_block;
275 int group;
276 int group_bad;
277
278 if (!bb_list)
279 return;
280
281 /*
282 * The primary superblock and group descriptors *must* be
283 * good; if not, abort.
284 */
285 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
286 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
287 if (ext2fs_badblocks_list_test(bb_list, i)) {
288 fprintf(stderr, _("Block %d in primary "
289 "superblock/group descriptor area bad.\n"), i);
290 fprintf(stderr, _("Blocks %u through %u must be good "
291 "in order to build a filesystem.\n"),
292 fs->super->s_first_data_block, must_be_good);
293 fputs(_("Aborting....\n"), stderr);
294 exit(1);
295 }
296 }
297
298 /*
299 * See if any of the bad blocks are showing up in the backup
300 * superblocks and/or group descriptors. If so, issue a
301 * warning and adjust the block counts appropriately.
302 */
303 group_block = fs->super->s_first_data_block +
304 fs->super->s_blocks_per_group;
305
306 for (i = 1; i < fs->group_desc_count; i++) {
307 group_bad = 0;
308 for (j=0; j < fs->desc_blocks+1; j++) {
309 if (ext2fs_badblocks_list_test(bb_list,
310 group_block + j)) {
311 if (!group_bad)
312 fprintf(stderr,
313 _("Warning: the backup superblock/group descriptors at block %u contain\n"
314 " bad blocks.\n\n"),
315 group_block);
316 group_bad++;
317 group = ext2fs_group_of_blk2(fs, group_block+j);
318 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
319 ext2fs_group_desc_csum_set(fs, group);
320 ext2fs_free_blocks_count_add(fs->super, 1);
321 }
322 }
323 group_block += fs->super->s_blocks_per_group;
324 }
325
326 /*
327 * Mark all the bad blocks as used...
328 */
329 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
330 if (retval) {
331 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
332 _("while marking bad blocks as used"));
333 exit(1);
334 }
335 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
336 ext2fs_mark_block_bitmap2(fs->block_map, EXT2FS_B2C(fs, blk));
337 ext2fs_badblocks_list_iterate_end(bb_iter);
338 }
339
340 static void write_reserved_inodes(ext2_filsys fs)
341 {
342 errcode_t retval;
343 ext2_ino_t ino;
344 struct ext2_inode *inode;
345
346 retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
347 if (retval) {
348 com_err("inode_init", retval, _("while allocating memory"));
349 exit(1);
350 }
351
352 for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++)
353 ext2fs_write_inode_full(fs, ino, inode,
354 EXT2_INODE_SIZE(fs->super));
355
356 ext2fs_free_mem(&inode);
357 }
358
359 static errcode_t packed_allocate_tables(ext2_filsys fs)
360 {
361 errcode_t retval;
362 dgrp_t i;
363 blk64_t goal = 0;
364
365 for (i = 0; i < fs->group_desc_count; i++) {
366 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
367 if (retval)
368 return retval;
369 ext2fs_block_alloc_stats2(fs, goal, +1);
370 ext2fs_block_bitmap_loc_set(fs, i, goal);
371 }
372 for (i = 0; i < fs->group_desc_count; i++) {
373 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
374 if (retval)
375 return retval;
376 ext2fs_block_alloc_stats2(fs, goal, +1);
377 ext2fs_inode_bitmap_loc_set(fs, i, goal);
378 }
379 for (i = 0; i < fs->group_desc_count; i++) {
380 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
381 retval = ext2fs_get_free_blocks2(fs, goal, end,
382 fs->inode_blocks_per_group,
383 fs->block_map, &goal);
384 if (retval)
385 return retval;
386 ext2fs_block_alloc_stats_range(fs, goal,
387 fs->inode_blocks_per_group, +1);
388 ext2fs_inode_table_loc_set(fs, i, goal);
389 ext2fs_group_desc_csum_set(fs, i);
390 }
391 return 0;
392 }
393
394 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
395 {
396 errcode_t retval;
397 blk64_t blk;
398 dgrp_t i;
399 int num;
400 struct ext2fs_numeric_progress_struct progress;
401
402 ext2fs_numeric_progress_init(fs, &progress,
403 _("Writing inode tables: "),
404 fs->group_desc_count);
405
406 for (i = 0; i < fs->group_desc_count; i++) {
407 ext2fs_numeric_progress_update(fs, &progress, i);
408
409 blk = ext2fs_inode_table_loc(fs, i);
410 num = fs->inode_blocks_per_group;
411
412 if (lazy_flag)
413 num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
414 ext2fs_bg_itable_unused(fs, i)) *
415 EXT2_INODE_SIZE(fs->super),
416 EXT2_BLOCK_SIZE(fs->super));
417 if (!lazy_flag || itable_zeroed) {
418 /* The kernel doesn't need to zero the itable blocks */
419 ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
420 ext2fs_group_desc_csum_set(fs, i);
421 }
422 retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
423 if (retval) {
424 fprintf(stderr, _("\nCould not write %d "
425 "blocks in inode table starting at %llu: %s\n"),
426 num, blk, error_message(retval));
427 exit(1);
428 }
429 if (sync_kludge) {
430 if (sync_kludge == 1)
431 sync();
432 else if ((i % sync_kludge) == 0)
433 sync();
434 }
435 }
436 ext2fs_zero_blocks2(0, 0, 0, 0, 0);
437 ext2fs_numeric_progress_close(fs, &progress,
438 _("done \n"));
439
440 /* Reserved inodes must always have correct checksums */
441 if (fs->super->s_creator_os == EXT2_OS_LINUX &&
442 fs->super->s_feature_ro_compat &
443 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)
444 write_reserved_inodes(fs);
445 }
446
447 static void create_root_dir(ext2_filsys fs)
448 {
449 errcode_t retval;
450 struct ext2_inode inode;
451
452 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
453 if (retval) {
454 com_err("ext2fs_mkdir", retval, "%s",
455 _("while creating root dir"));
456 exit(1);
457 }
458 if (root_uid != 0 || root_gid != 0) {
459 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
460 if (retval) {
461 com_err("ext2fs_read_inode", retval, "%s",
462 _("while reading root inode"));
463 exit(1);
464 }
465
466 inode.i_uid = root_uid;
467 ext2fs_set_i_uid_high(inode, root_uid >> 16);
468 inode.i_gid = root_gid;
469 ext2fs_set_i_gid_high(inode, root_gid >> 16);
470
471 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
472 if (retval) {
473 com_err("ext2fs_write_inode", retval, "%s",
474 _("while setting root inode ownership"));
475 exit(1);
476 }
477 }
478 }
479
480 static void create_lost_and_found(ext2_filsys fs)
481 {
482 unsigned int lpf_size = 0;
483 errcode_t retval;
484 ext2_ino_t ino;
485 const char *name = "lost+found";
486 int i;
487
488 fs->umask = 077;
489 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
490 if (retval) {
491 com_err("ext2fs_mkdir", retval, "%s",
492 _("while creating /lost+found"));
493 exit(1);
494 }
495
496 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
497 if (retval) {
498 com_err("ext2_lookup", retval, "%s",
499 _("while looking up /lost+found"));
500 exit(1);
501 }
502
503 for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
504 /* Ensure that lost+found is at least 2 blocks, so we always
505 * test large empty blocks for big-block filesystems. */
506 if ((lpf_size += fs->blocksize) >= 16*1024 &&
507 lpf_size >= 2 * fs->blocksize)
508 break;
509 retval = ext2fs_expand_dir(fs, ino);
510 if (retval) {
511 com_err("ext2fs_expand_dir", retval, "%s",
512 _("while expanding /lost+found"));
513 exit(1);
514 }
515 }
516 }
517
518 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
519 {
520 errcode_t retval;
521
522 ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
523 ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
524 retval = ext2fs_update_bb_inode(fs, bb_list);
525 if (retval) {
526 com_err("ext2fs_update_bb_inode", retval, "%s",
527 _("while setting bad block inode"));
528 exit(1);
529 }
530
531 }
532
533 static void reserve_inodes(ext2_filsys fs)
534 {
535 ext2_ino_t i;
536
537 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
538 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
539 ext2fs_mark_ib_dirty(fs);
540 }
541
542 #define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */
543 #define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */
544 #define BSD_LABEL_OFFSET 64
545
546 static void zap_sector(ext2_filsys fs, int sect, int nsect)
547 {
548 char *buf;
549 int retval;
550 unsigned int *magic;
551
552 buf = malloc(512*nsect);
553 if (!buf) {
554 printf(_("Out of memory erasing sectors %d-%d\n"),
555 sect, sect + nsect - 1);
556 exit(1);
557 }
558
559 if (sect == 0) {
560 /* Check for a BSD disklabel, and don't erase it if so */
561 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
562 if (retval)
563 fprintf(stderr,
564 _("Warning: could not read block 0: %s\n"),
565 error_message(retval));
566 else {
567 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
568 if ((*magic == BSD_DISKMAGIC) ||
569 (*magic == BSD_MAGICDISK))
570 return;
571 }
572 }
573
574 memset(buf, 0, 512*nsect);
575 io_channel_set_blksize(fs->io, 512);
576 retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
577 io_channel_set_blksize(fs->io, fs->blocksize);
578 free(buf);
579 if (retval)
580 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
581 sect, error_message(retval));
582 }
583
584 static void create_journal_dev(ext2_filsys fs)
585 {
586 struct ext2fs_numeric_progress_struct progress;
587 errcode_t retval;
588 char *buf;
589 blk64_t blk, err_blk;
590 int c, count, err_count;
591
592 retval = ext2fs_create_journal_superblock(fs,
593 ext2fs_blocks_count(fs->super), 0, &buf);
594 if (retval) {
595 com_err("create_journal_dev", retval, "%s",
596 _("while initializing journal superblock"));
597 exit(1);
598 }
599
600 if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
601 goto write_superblock;
602
603 ext2fs_numeric_progress_init(fs, &progress,
604 _("Zeroing journal device: "),
605 ext2fs_blocks_count(fs->super));
606 blk = 0;
607 count = ext2fs_blocks_count(fs->super);
608 while (count > 0) {
609 if (count > 1024)
610 c = 1024;
611 else
612 c = count;
613 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
614 if (retval) {
615 com_err("create_journal_dev", retval,
616 _("while zeroing journal device "
617 "(block %llu, count %d)"),
618 err_blk, err_count);
619 exit(1);
620 }
621 blk += c;
622 count -= c;
623 ext2fs_numeric_progress_update(fs, &progress, blk);
624 }
625 ext2fs_zero_blocks2(0, 0, 0, 0, 0);
626
627 ext2fs_numeric_progress_close(fs, &progress, NULL);
628 write_superblock:
629 retval = io_channel_write_blk64(fs->io,
630 fs->super->s_first_data_block+1,
631 1, buf);
632 if (retval) {
633 com_err("create_journal_dev", retval, "%s",
634 _("while writing journal superblock"));
635 exit(1);
636 }
637 }
638
639 static void show_stats(ext2_filsys fs)
640 {
641 struct ext2_super_block *s = fs->super;
642 char buf[80];
643 char *os;
644 blk64_t group_block;
645 dgrp_t i;
646 int need, col_left;
647
648 if (!verbose) {
649 printf(_("Creating filesystem with %llu %dk blocks and "
650 "%u inodes\n"),
651 ext2fs_blocks_count(s), fs->blocksize >> 10,
652 s->s_inodes_count);
653 goto skip_details;
654 }
655
656 if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
657 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
658 ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
659
660 memset(buf, 0, sizeof(buf));
661 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
662 printf(_("Filesystem label=%s\n"), buf);
663 os = e2p_os2string(fs->super->s_creator_os);
664 if (os)
665 printf(_("OS type: %s\n"), os);
666 free(os);
667 printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
668 s->s_log_block_size);
669 if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
670 EXT4_FEATURE_RO_COMPAT_BIGALLOC))
671 printf(_("Cluster size=%u (log=%u)\n"),
672 fs->blocksize << fs->cluster_ratio_bits,
673 s->s_log_cluster_size);
674 else
675 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
676 s->s_log_cluster_size);
677 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
678 s->s_raid_stride, s->s_raid_stripe_width);
679 printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
680 ext2fs_blocks_count(s));
681 printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
682 ext2fs_r_blocks_count(s),
683 100.0 * ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
684 printf(_("First data block=%u\n"), s->s_first_data_block);
685 if (root_uid != 0 || root_gid != 0)
686 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
687 if (s->s_reserved_gdt_blocks)
688 printf(_("Maximum filesystem blocks=%lu\n"),
689 (s->s_reserved_gdt_blocks + fs->desc_blocks) *
690 EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
691 if (fs->group_desc_count > 1)
692 printf(_("%u block groups\n"), fs->group_desc_count);
693 else
694 printf(_("%u block group\n"), fs->group_desc_count);
695 if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
696 EXT4_FEATURE_RO_COMPAT_BIGALLOC))
697 printf(_("%u blocks per group, %u clusters per group\n"),
698 s->s_blocks_per_group, s->s_clusters_per_group);
699 else
700 printf(_("%u blocks per group, %u fragments per group\n"),
701 s->s_blocks_per_group, s->s_clusters_per_group);
702 printf(_("%u inodes per group\n"), s->s_inodes_per_group);
703
704 skip_details:
705 if (fs->group_desc_count == 1) {
706 printf("\n");
707 return;
708 }
709
710 if (!e2p_is_null_uuid(s->s_uuid))
711 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
712 printf("%s", _("Superblock backups stored on blocks: "));
713 group_block = s->s_first_data_block;
714 col_left = 0;
715 for (i = 1; i < fs->group_desc_count; i++) {
716 group_block += s->s_blocks_per_group;
717 if (!ext2fs_bg_has_super(fs, i))
718 continue;
719 if (i != 1)
720 printf(", ");
721 need = int_log10(group_block) + 2;
722 if (need > col_left) {
723 printf("\n\t");
724 col_left = 72;
725 }
726 col_left -= need;
727 printf("%llu", group_block);
728 }
729 printf("\n\n");
730 }
731
732 /*
733 * Returns true if making a file system for the Hurd, else 0
734 */
735 static int for_hurd(const char *os)
736 {
737 if (!os) {
738 #ifdef __GNU__
739 return 1;
740 #else
741 return 0;
742 #endif
743 }
744 if (isdigit(*os))
745 return (atoi(os) == EXT2_OS_HURD);
746 return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
747 }
748
749 /*
750 * Set the S_CREATOR_OS field. Return true if OS is known,
751 * otherwise, 0.
752 */
753 static int set_os(struct ext2_super_block *sb, char *os)
754 {
755 if (isdigit (*os))
756 sb->s_creator_os = atoi (os);
757 else if (strcasecmp(os, "linux") == 0)
758 sb->s_creator_os = EXT2_OS_LINUX;
759 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
760 sb->s_creator_os = EXT2_OS_HURD;
761 else if (strcasecmp(os, "freebsd") == 0)
762 sb->s_creator_os = EXT2_OS_FREEBSD;
763 else if (strcasecmp(os, "lites") == 0)
764 sb->s_creator_os = EXT2_OS_LITES;
765 else
766 return 0;
767 return 1;
768 }
769
770 #define PATH_SET "PATH=/sbin"
771
772 static void parse_extended_opts(struct ext2_super_block *param,
773 const char *opts)
774 {
775 char *buf, *token, *next, *p, *arg, *badopt = 0;
776 int len;
777 int r_usage = 0;
778
779 len = strlen(opts);
780 buf = malloc(len+1);
781 if (!buf) {
782 fprintf(stderr, "%s",
783 _("Couldn't allocate memory to parse options!\n"));
784 exit(1);
785 }
786 strcpy(buf, opts);
787 for (token = buf; token && *token; token = next) {
788 p = strchr(token, ',');
789 next = 0;
790 if (p) {
791 *p = 0;
792 next = p+1;
793 }
794 arg = strchr(token, '=');
795 if (arg) {
796 *arg = 0;
797 arg++;
798 }
799 if (strcmp(token, "desc-size") == 0 ||
800 strcmp(token, "desc_size") == 0) {
801 int desc_size;
802
803 if (!(fs_param.s_feature_incompat &
804 EXT4_FEATURE_INCOMPAT_64BIT)) {
805 fprintf(stderr,
806 _("%s requires '-O 64bit'\n"), token);
807 r_usage++;
808 continue;
809 }
810 if (param->s_reserved_gdt_blocks != 0) {
811 fprintf(stderr,
812 _("'%s' must be before 'resize=%u'\n"),
813 token, param->s_reserved_gdt_blocks);
814 r_usage++;
815 continue;
816 }
817 if (!arg) {
818 r_usage++;
819 badopt = token;
820 continue;
821 }
822 desc_size = strtoul(arg, &p, 0);
823 if (*p || (desc_size & (desc_size - 1))) {
824 fprintf(stderr,
825 _("Invalid desc_size: '%s'\n"), arg);
826 r_usage++;
827 continue;
828 }
829 param->s_desc_size = desc_size;
830 } else if (strcmp(token, "offset") == 0) {
831 if (!arg) {
832 r_usage++;
833 badopt = token;
834 continue;
835 }
836 offset = strtoull(arg, &p, 0);
837 if (*p) {
838 fprintf(stderr, _("Invalid offset: %s\n"),
839 arg);
840 r_usage++;
841 continue;
842 }
843 } else if (strcmp(token, "mmp_update_interval") == 0) {
844 if (!arg) {
845 r_usage++;
846 badopt = token;
847 continue;
848 }
849 param->s_mmp_update_interval = strtoul(arg, &p, 0);
850 if (*p) {
851 fprintf(stderr,
852 _("Invalid mmp_update_interval: %s\n"),
853 arg);
854 r_usage++;
855 continue;
856 }
857 } else if (strcmp(token, "num_backup_sb") == 0) {
858 if (!arg) {
859 r_usage++;
860 badopt = token;
861 continue;
862 }
863 num_backups = strtoul(arg, &p, 0);
864 if (*p || num_backups > 2) {
865 fprintf(stderr,
866 _("Invalid # of backup "
867 "superblocks: %s\n"),
868 arg);
869 r_usage++;
870 continue;
871 }
872 } else if (strcmp(token, "packed_meta_blocks") == 0) {
873 if (arg)
874 packed_meta_blocks = strtoul(arg, &p, 0);
875 else
876 packed_meta_blocks = 1;
877 if (packed_meta_blocks)
878 journal_location = 0;
879 } else if (strcmp(token, "stride") == 0) {
880 if (!arg) {
881 r_usage++;
882 badopt = token;
883 continue;
884 }
885 param->s_raid_stride = strtoul(arg, &p, 0);
886 if (*p) {
887 fprintf(stderr,
888 _("Invalid stride parameter: %s\n"),
889 arg);
890 r_usage++;
891 continue;
892 }
893 } else if (strcmp(token, "stripe-width") == 0 ||
894 strcmp(token, "stripe_width") == 0) {
895 if (!arg) {
896 r_usage++;
897 badopt = token;
898 continue;
899 }
900 param->s_raid_stripe_width = strtoul(arg, &p, 0);
901 if (*p) {
902 fprintf(stderr,
903 _("Invalid stripe-width parameter: %s\n"),
904 arg);
905 r_usage++;
906 continue;
907 }
908 } else if (!strcmp(token, "resize")) {
909 blk64_t resize;
910 unsigned long bpg, rsv_groups;
911 unsigned long group_desc_count, desc_blocks;
912 unsigned int gdpb, blocksize;
913 int rsv_gdb;
914
915 if (!arg) {
916 r_usage++;
917 badopt = token;
918 continue;
919 }
920
921 resize = parse_num_blocks2(arg,
922 param->s_log_block_size);
923
924 if (resize == 0) {
925 fprintf(stderr,
926 _("Invalid resize parameter: %s\n"),
927 arg);
928 r_usage++;
929 continue;
930 }
931 if (resize <= ext2fs_blocks_count(param)) {
932 fprintf(stderr, "%s",
933 _("The resize maximum must be greater "
934 "than the filesystem size.\n"));
935 r_usage++;
936 continue;
937 }
938
939 blocksize = EXT2_BLOCK_SIZE(param);
940 bpg = param->s_blocks_per_group;
941 if (!bpg)
942 bpg = blocksize * 8;
943 gdpb = EXT2_DESC_PER_BLOCK(param);
944 group_desc_count = (__u32) ext2fs_div64_ceil(
945 ext2fs_blocks_count(param), bpg);
946 desc_blocks = (group_desc_count +
947 gdpb - 1) / gdpb;
948 rsv_groups = ext2fs_div64_ceil(resize, bpg);
949 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
950 desc_blocks;
951 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
952 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
953
954 if (rsv_gdb > 0) {
955 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
956 fprintf(stderr, "%s",
957 _("On-line resizing not supported with revision 0 filesystems\n"));
958 free(buf);
959 exit(1);
960 }
961 param->s_feature_compat |=
962 EXT2_FEATURE_COMPAT_RESIZE_INODE;
963
964 param->s_reserved_gdt_blocks = rsv_gdb;
965 }
966 } else if (!strcmp(token, "test_fs")) {
967 param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
968 } else if (!strcmp(token, "lazy_itable_init")) {
969 if (arg)
970 lazy_itable_init = strtoul(arg, &p, 0);
971 else
972 lazy_itable_init = 1;
973 } else if (!strcmp(token, "lazy_journal_init")) {
974 if (arg)
975 journal_flags |= strtoul(arg, &p, 0) ?
976 EXT2_MKJOURNAL_LAZYINIT : 0;
977 else
978 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
979 } else if (!strcmp(token, "root_owner")) {
980 if (arg) {
981 root_uid = strtoul(arg, &p, 0);
982 if (*p != ':') {
983 fprintf(stderr,
984 _("Invalid root_owner: '%s'\n"),
985 arg);
986 r_usage++;
987 continue;
988 }
989 p++;
990 root_gid = strtoul(p, &p, 0);
991 if (*p) {
992 fprintf(stderr,
993 _("Invalid root_owner: '%s'\n"),
994 arg);
995 r_usage++;
996 continue;
997 }
998 } else {
999 root_uid = getuid();
1000 root_gid = getgid();
1001 }
1002 } else if (!strcmp(token, "discard")) {
1003 discard = 1;
1004 } else if (!strcmp(token, "nodiscard")) {
1005 discard = 0;
1006 } else if (!strcmp(token, "quotatype")) {
1007 if (!arg) {
1008 r_usage++;
1009 badopt = token;
1010 continue;
1011 }
1012 if (!strncmp(arg, "usr", 3)) {
1013 quotatype = 0;
1014 } else if (!strncmp(arg, "grp", 3)) {
1015 quotatype = 1;
1016 } else {
1017 fprintf(stderr,
1018 _("Invalid quotatype parameter: %s\n"),
1019 arg);
1020 r_usage++;
1021 continue;
1022 }
1023 } else {
1024 r_usage++;
1025 badopt = token;
1026 }
1027 }
1028 if (r_usage) {
1029 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1030 "Extended options are separated by commas, "
1031 "and may take an argument which\n"
1032 "\tis set off by an equals ('=') sign.\n\n"
1033 "Valid extended options are:\n"
1034 "\tmmp_update_interval=<interval>\n"
1035 "\tnum_backup_sb=<0|1|2>\n"
1036 "\tstride=<RAID per-disk data chunk in blocks>\n"
1037 "\tstripe-width=<RAID stride * data disks in blocks>\n"
1038 "\toffset=<offset to create the file system>\n"
1039 "\tresize=<resize maximum size in blocks>\n"
1040 "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1041 "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1042 "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1043 "\troot_uid=<uid of root directory>\n"
1044 "\troot_gid=<gid of root directory>\n"
1045 "\ttest_fs\n"
1046 "\tdiscard\n"
1047 "\tnodiscard\n"
1048 "\tquotatype=<usr OR grp>\n\n"),
1049 badopt ? badopt : "");
1050 free(buf);
1051 exit(1);
1052 }
1053 if (param->s_raid_stride &&
1054 (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1055 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1056 "multiple of stride %u.\n\n"),
1057 param->s_raid_stripe_width, param->s_raid_stride);
1058
1059 free(buf);
1060 }
1061
1062 static __u32 ok_features[3] = {
1063 /* Compat */
1064 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1065 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1066 EXT2_FEATURE_COMPAT_DIR_INDEX |
1067 EXT2_FEATURE_COMPAT_EXT_ATTR |
1068 EXT4_FEATURE_COMPAT_SPARSE_SUPER2,
1069 /* Incompat */
1070 EXT2_FEATURE_INCOMPAT_FILETYPE|
1071 EXT3_FEATURE_INCOMPAT_EXTENTS|
1072 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1073 EXT2_FEATURE_INCOMPAT_META_BG|
1074 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1075 EXT4_FEATURE_INCOMPAT_MMP |
1076 EXT4_FEATURE_INCOMPAT_64BIT|
1077 EXT4_FEATURE_INCOMPAT_INLINE_DATA,
1078 /* R/O compat */
1079 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1080 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1081 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1082 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1083 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1084 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1085 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1086 #ifdef CONFIG_QUOTA
1087 EXT4_FEATURE_RO_COMPAT_QUOTA|
1088 #endif
1089 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM
1090 };
1091
1092
1093 static void syntax_err_report(const char *filename, long err, int line_num)
1094 {
1095 fprintf(stderr,
1096 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1097 filename, line_num, error_message(err));
1098 exit(1);
1099 }
1100
1101 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1102
1103 static void edit_feature(const char *str, __u32 *compat_array)
1104 {
1105 if (!str)
1106 return;
1107
1108 if (e2p_edit_feature(str, compat_array, ok_features)) {
1109 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1110 str);
1111 exit(1);
1112 }
1113 }
1114
1115 static void edit_mntopts(const char *str, __u32 *mntopts)
1116 {
1117 if (!str)
1118 return;
1119
1120 if (e2p_edit_mntopts(str, mntopts, ~0)) {
1121 fprintf(stderr, _("Invalid mount option set: %s\n"),
1122 str);
1123 exit(1);
1124 }
1125 }
1126
1127 struct str_list {
1128 char **list;
1129 int num;
1130 int max;
1131 };
1132
1133 static errcode_t init_list(struct str_list *sl)
1134 {
1135 sl->num = 0;
1136 sl->max = 0;
1137 sl->list = malloc((sl->max+1) * sizeof(char *));
1138 if (!sl->list)
1139 return ENOMEM;
1140 sl->list[0] = 0;
1141 return 0;
1142 }
1143
1144 static errcode_t push_string(struct str_list *sl, const char *str)
1145 {
1146 char **new_list;
1147
1148 if (sl->num >= sl->max) {
1149 sl->max += 2;
1150 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1151 if (!new_list)
1152 return ENOMEM;
1153 sl->list = new_list;
1154 }
1155 sl->list[sl->num] = malloc(strlen(str)+1);
1156 if (sl->list[sl->num] == 0)
1157 return ENOMEM;
1158 strcpy(sl->list[sl->num], str);
1159 sl->num++;
1160 sl->list[sl->num] = 0;
1161 return 0;
1162 }
1163
1164 static void print_str_list(char **list)
1165 {
1166 char **cpp;
1167
1168 for (cpp = list; *cpp; cpp++) {
1169 printf("'%s'", *cpp);
1170 if (cpp[1])
1171 fputs(", ", stdout);
1172 }
1173 fputc('\n', stdout);
1174 }
1175
1176 /*
1177 * Return TRUE if the profile has the given subsection
1178 */
1179 static int profile_has_subsection(profile_t prof, const char *section,
1180 const char *subsection)
1181 {
1182 void *state;
1183 const char *names[4];
1184 char *name;
1185 int ret = 0;
1186
1187 names[0] = section;
1188 names[1] = subsection;
1189 names[2] = 0;
1190
1191 if (profile_iterator_create(prof, names,
1192 PROFILE_ITER_LIST_SECTION |
1193 PROFILE_ITER_RELATIONS_ONLY, &state))
1194 return 0;
1195
1196 if ((profile_iterator(&state, &name, 0) == 0) && name) {
1197 free(name);
1198 ret = 1;
1199 }
1200
1201 profile_iterator_free(&state);
1202 return ret;
1203 }
1204
1205 static char **parse_fs_type(const char *fs_type,
1206 const char *usage_types,
1207 struct ext2_super_block *sb,
1208 blk64_t fs_blocks_count,
1209 char *progname)
1210 {
1211 const char *ext_type = 0;
1212 char *parse_str;
1213 char *profile_type = 0;
1214 char *cp, *t;
1215 const char *size_type;
1216 struct str_list list;
1217 unsigned long long meg;
1218 int is_hurd = for_hurd(creator_os);
1219
1220 if (init_list(&list))
1221 return 0;
1222
1223 if (fs_type)
1224 ext_type = fs_type;
1225 else if (is_hurd)
1226 ext_type = "ext2";
1227 else if (!strcmp(program_name, "mke3fs"))
1228 ext_type = "ext3";
1229 else if (!strcmp(program_name, "mke4fs"))
1230 ext_type = "ext4";
1231 else if (progname) {
1232 ext_type = strrchr(progname, '/');
1233 if (ext_type)
1234 ext_type++;
1235 else
1236 ext_type = progname;
1237
1238 if (!strncmp(ext_type, "mkfs.", 5)) {
1239 ext_type += 5;
1240 if (ext_type[0] == 0)
1241 ext_type = 0;
1242 } else
1243 ext_type = 0;
1244 }
1245
1246 if (!ext_type) {
1247 profile_get_string(profile, "defaults", "fs_type", 0,
1248 "ext2", &profile_type);
1249 ext_type = profile_type;
1250 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1251 ext_type = "ext3";
1252 }
1253
1254
1255 if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1256 strcmp(ext_type, "ext2")) {
1257 printf(_("\nYour mke2fs.conf file does not define the "
1258 "%s filesystem type.\n"), ext_type);
1259 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1260 !strcmp(ext_type, "ext4dev")) {
1261 printf("%s", _("You probably need to install an "
1262 "updated mke2fs.conf file.\n\n"));
1263 }
1264 if (!force) {
1265 printf("%s", _("Aborting...\n"));
1266 exit(1);
1267 }
1268 }
1269
1270 meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1271 if (fs_blocks_count < 3 * meg)
1272 size_type = "floppy";
1273 else if (fs_blocks_count < 512 * meg)
1274 size_type = "small";
1275 else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1276 size_type = "default";
1277 else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1278 size_type = "big";
1279 else
1280 size_type = "huge";
1281
1282 if (!usage_types)
1283 usage_types = size_type;
1284
1285 parse_str = malloc(strlen(usage_types)+1);
1286 if (!parse_str) {
1287 free(profile_type);
1288 free(list.list);
1289 return 0;
1290 }
1291 strcpy(parse_str, usage_types);
1292
1293 if (ext_type)
1294 push_string(&list, ext_type);
1295 cp = parse_str;
1296 while (1) {
1297 t = strchr(cp, ',');
1298 if (t)
1299 *t = '\0';
1300
1301 if (*cp) {
1302 if (profile_has_subsection(profile, "fs_types", cp))
1303 push_string(&list, cp);
1304 else if (strcmp(cp, "default") != 0)
1305 fprintf(stderr,
1306 _("\nWarning: the fs_type %s is not "
1307 "defined in mke2fs.conf\n\n"),
1308 cp);
1309 }
1310 if (t)
1311 cp = t+1;
1312 else
1313 break;
1314 }
1315 free(parse_str);
1316 free(profile_type);
1317 if (is_hurd)
1318 push_string(&list, "hurd");
1319 return (list.list);
1320 }
1321
1322 char *get_string_from_profile(char **types, const char *opt,
1323 const char *def_val)
1324 {
1325 char *ret = 0;
1326 int i;
1327
1328 for (i=0; types[i]; i++);
1329 for (i-=1; i >=0 ; i--) {
1330 profile_get_string(profile, "fs_types", types[i],
1331 opt, 0, &ret);
1332 if (ret)
1333 return ret;
1334 }
1335 profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1336 return (ret);
1337 }
1338
1339 int get_int_from_profile(char **types, const char *opt, int def_val)
1340 {
1341 int ret;
1342 char **cpp;
1343
1344 profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1345 for (cpp = types; *cpp; cpp++)
1346 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1347 return ret;
1348 }
1349
1350 static unsigned int get_uint_from_profile(char **types, const char *opt,
1351 unsigned int def_val)
1352 {
1353 unsigned int ret;
1354 char **cpp;
1355
1356 profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1357 for (cpp = types; *cpp; cpp++)
1358 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1359 return ret;
1360 }
1361
1362 static double get_double_from_profile(char **types, const char *opt,
1363 double def_val)
1364 {
1365 double ret;
1366 char **cpp;
1367
1368 profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1369 for (cpp = types; *cpp; cpp++)
1370 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1371 return ret;
1372 }
1373
1374 int get_bool_from_profile(char **types, const char *opt, int def_val)
1375 {
1376 int ret;
1377 char **cpp;
1378
1379 profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1380 for (cpp = types; *cpp; cpp++)
1381 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1382 return ret;
1383 }
1384
1385 extern const char *mke2fs_default_profile;
1386 static const char *default_files[] = { "<default>", 0 };
1387
1388 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1389 /*
1390 * Sets the geometry of a device (stripe/stride), and returns the
1391 * device's alignment offset, if any, or a negative error.
1392 */
1393 static int get_device_geometry(const char *file,
1394 struct ext2_super_block *fs_param,
1395 int psector_size)
1396 {
1397 int rc = -1;
1398 int blocksize;
1399 blkid_probe pr;
1400 blkid_topology tp;
1401 unsigned long min_io;
1402 unsigned long opt_io;
1403 struct stat statbuf;
1404
1405 /* Nothing to do for a regular file */
1406 if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1407 return 0;
1408
1409 pr = blkid_new_probe_from_filename(file);
1410 if (!pr)
1411 goto out;
1412
1413 tp = blkid_probe_get_topology(pr);
1414 if (!tp)
1415 goto out;
1416
1417 min_io = blkid_topology_get_minimum_io_size(tp);
1418 opt_io = blkid_topology_get_optimal_io_size(tp);
1419 blocksize = EXT2_BLOCK_SIZE(fs_param);
1420 if ((min_io == 0) && (psector_size > blocksize))
1421 min_io = psector_size;
1422 if ((opt_io == 0) && min_io)
1423 opt_io = min_io;
1424 if ((opt_io == 0) && (psector_size > blocksize))
1425 opt_io = psector_size;
1426
1427 /* setting stripe/stride to blocksize is pointless */
1428 if (min_io > blocksize)
1429 fs_param->s_raid_stride = min_io / blocksize;
1430 if (opt_io > blocksize)
1431 fs_param->s_raid_stripe_width = opt_io / blocksize;
1432
1433 rc = blkid_topology_get_alignment_offset(tp);
1434 out:
1435 blkid_free_probe(pr);
1436 return rc;
1437 }
1438 #endif
1439
1440 static void PRS(int argc, char *argv[])
1441 {
1442 int b, c, flags;
1443 int cluster_size = 0;
1444 char *tmp, **cpp;
1445 int blocksize = 0;
1446 int inode_ratio = 0;
1447 int inode_size = 0;
1448 unsigned long flex_bg_size = 0;
1449 double reserved_ratio = -1.0;
1450 int lsector_size = 0, psector_size = 0;
1451 int show_version_only = 0, is_device = 0;
1452 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1453 errcode_t retval;
1454 char * oldpath = getenv("PATH");
1455 char * extended_opts = 0;
1456 char * fs_type = 0;
1457 char * usage_types = 0;
1458 /*
1459 * NOTE: A few words about fs_blocks_count and blocksize:
1460 *
1461 * Initially, blocksize is set to zero, which implies 1024.
1462 * If -b is specified, blocksize is updated to the user's value.
1463 *
1464 * Next, the device size or the user's "blocks" command line argument
1465 * is used to set fs_blocks_count; the units are blocksize.
1466 *
1467 * Later, if blocksize hasn't been set and the profile specifies a
1468 * blocksize, then blocksize is updated and fs_blocks_count is scaled
1469 * appropriately. Note the change in units!
1470 *
1471 * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1472 */
1473 blk64_t fs_blocks_count = 0;
1474 long sysval;
1475 int s_opt = -1, r_opt = -1;
1476 char *fs_features = 0;
1477 int use_bsize;
1478 char *newpath;
1479 int pathlen = sizeof(PATH_SET) + 1;
1480
1481 if (oldpath)
1482 pathlen += strlen(oldpath);
1483 newpath = malloc(pathlen);
1484 if (!newpath) {
1485 fprintf(stderr, "%s",
1486 _("Couldn't allocate memory for new PATH.\n"));
1487 exit(1);
1488 }
1489 strcpy(newpath, PATH_SET);
1490
1491 /* Update our PATH to include /sbin */
1492 if (oldpath) {
1493 strcat (newpath, ":");
1494 strcat (newpath, oldpath);
1495 }
1496 putenv (newpath);
1497
1498 tmp = getenv("MKE2FS_SYNC");
1499 if (tmp)
1500 sync_kludge = atoi(tmp);
1501
1502 /* Determine the system page size if possible */
1503 #ifdef HAVE_SYSCONF
1504 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1505 #define _SC_PAGESIZE _SC_PAGE_SIZE
1506 #endif
1507 #ifdef _SC_PAGESIZE
1508 sysval = sysconf(_SC_PAGESIZE);
1509 if (sysval > 0)
1510 sys_page_size = sysval;
1511 #endif /* _SC_PAGESIZE */
1512 #endif /* HAVE_SYSCONF */
1513
1514 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1515 config_fn[0] = tmp;
1516 profile_set_syntax_err_cb(syntax_err_report);
1517 retval = profile_init(config_fn, &profile);
1518 if (retval == ENOENT) {
1519 retval = profile_init(default_files, &profile);
1520 if (retval)
1521 goto profile_error;
1522 retval = profile_set_default(profile, mke2fs_default_profile);
1523 if (retval)
1524 goto profile_error;
1525 } else if (retval) {
1526 profile_error:
1527 fprintf(stderr, _("Couldn't init profile successfully"
1528 " (error: %ld).\n"), retval);
1529 exit(1);
1530 }
1531
1532 setbuf(stdout, NULL);
1533 setbuf(stderr, NULL);
1534 add_error_table(&et_ext2_error_table);
1535 add_error_table(&et_prof_error_table);
1536 memset(&fs_param, 0, sizeof(struct ext2_super_block));
1537 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */
1538
1539 if (is_before_linux_ver(2, 2, 0))
1540 fs_param.s_rev_level = 0;
1541
1542 if (argc && *argv) {
1543 program_name = get_progname(*argv);
1544
1545 /* If called as mkfs.ext3, create a journal inode */
1546 if (!strcmp(program_name, "mkfs.ext3") ||
1547 !strcmp(program_name, "mke3fs"))
1548 journal_size = -1;
1549 }
1550
1551 while ((c = getopt (argc, argv,
1552 "b:ce:g:i:jl:m:no:qr:s:t:d:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:V")) != EOF) {
1553 switch (c) {
1554 case 'b':
1555 blocksize = parse_num_blocks2(optarg, -1);
1556 b = (blocksize > 0) ? blocksize : -blocksize;
1557 if (b < EXT2_MIN_BLOCK_SIZE ||
1558 b > EXT2_MAX_BLOCK_SIZE) {
1559 com_err(program_name, 0,
1560 _("invalid block size - %s"), optarg);
1561 exit(1);
1562 }
1563 if (blocksize > 4096)
1564 fprintf(stderr, _("Warning: blocksize %d not "
1565 "usable on most systems.\n"),
1566 blocksize);
1567 if (blocksize > 0)
1568 fs_param.s_log_block_size =
1569 int_log2(blocksize >>
1570 EXT2_MIN_BLOCK_LOG_SIZE);
1571 break;
1572 case 'c': /* Check for bad blocks */
1573 cflag++;
1574 break;
1575 case 'C':
1576 cluster_size = parse_num_blocks2(optarg, -1);
1577 if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1578 cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1579 com_err(program_name, 0,
1580 _("invalid cluster size - %s"),
1581 optarg);
1582 exit(1);
1583 }
1584 break;
1585 case 'D':
1586 direct_io = 1;
1587 break;
1588 case 'R':
1589 com_err(program_name, 0, "%s",
1590 _("'-R' is deprecated, use '-E' instead"));
1591 /* fallthrough */
1592 case 'E':
1593 extended_opts = optarg;
1594 break;
1595 case 'e':
1596 if (strcmp(optarg, "continue") == 0)
1597 errors_behavior = EXT2_ERRORS_CONTINUE;
1598 else if (strcmp(optarg, "remount-ro") == 0)
1599 errors_behavior = EXT2_ERRORS_RO;
1600 else if (strcmp(optarg, "panic") == 0)
1601 errors_behavior = EXT2_ERRORS_PANIC;
1602 else {
1603 com_err(program_name, 0,
1604 _("bad error behavior - %s"),
1605 optarg);
1606 usage();
1607 }
1608 break;
1609 case 'F':
1610 force++;
1611 break;
1612 case 'g':
1613 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1614 if (*tmp) {
1615 com_err(program_name, 0, "%s",
1616 _("Illegal number for blocks per group"));
1617 exit(1);
1618 }
1619 if ((fs_param.s_blocks_per_group % 8) != 0) {
1620 com_err(program_name, 0, "%s",
1621 _("blocks per group must be multiple of 8"));
1622 exit(1);
1623 }
1624 break;
1625 case 'G':
1626 flex_bg_size = strtoul(optarg, &tmp, 0);
1627 if (*tmp) {
1628 com_err(program_name, 0, "%s",
1629 _("Illegal number for flex_bg size"));
1630 exit(1);
1631 }
1632 if (flex_bg_size < 1 ||
1633 (flex_bg_size & (flex_bg_size-1)) != 0) {
1634 com_err(program_name, 0, "%s",
1635 _("flex_bg size must be a power of 2"));
1636 exit(1);
1637 }
1638 if (flex_bg_size > MAX_32_NUM) {
1639 com_err(program_name, 0,
1640 _("flex_bg size (%lu) must be less than"
1641 " or equal to 2^31"), flex_bg_size);
1642 exit(1);
1643 }
1644 break;
1645 case 'i':
1646 inode_ratio = strtoul(optarg, &tmp, 0);
1647 if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1648 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 ||
1649 *tmp) {
1650 com_err(program_name, 0,
1651 _("invalid inode ratio %s (min %d/max %d)"),
1652 optarg, EXT2_MIN_BLOCK_SIZE,
1653 EXT2_MAX_BLOCK_SIZE * 1024);
1654 exit(1);
1655 }
1656 break;
1657 case 'I':
1658 inode_size = strtoul(optarg, &tmp, 0);
1659 if (*tmp) {
1660 com_err(program_name, 0,
1661 _("invalid inode size - %s"), optarg);
1662 exit(1);
1663 }
1664 break;
1665 case 'j':
1666 if (!journal_size)
1667 journal_size = -1;
1668 break;
1669 case 'J':
1670 parse_journal_opts(optarg);
1671 break;
1672 case 'K':
1673 fprintf(stderr, "%s",
1674 _("Warning: -K option is deprecated and "
1675 "should not be used anymore. Use "
1676 "\'-E nodiscard\' extended option "
1677 "instead!\n"));
1678 discard = 0;
1679 break;
1680 case 'l':
1681 bad_blocks_filename = realloc(bad_blocks_filename,
1682 strlen(optarg) + 1);
1683 if (!bad_blocks_filename) {
1684 com_err(program_name, ENOMEM, "%s",
1685 _("in malloc for bad_blocks_filename"));
1686 exit(1);
1687 }
1688 strcpy(bad_blocks_filename, optarg);
1689 break;
1690 case 'L':
1691 volume_label = optarg;
1692 break;
1693 case 'm':
1694 reserved_ratio = strtod(optarg, &tmp);
1695 if ( *tmp || reserved_ratio > 50 ||
1696 reserved_ratio < 0) {
1697 com_err(program_name, 0,
1698 _("invalid reserved blocks percent - %s"),
1699 optarg);
1700 exit(1);
1701 }
1702 break;
1703 case 'M':
1704 mount_dir = optarg;
1705 break;
1706 case 'n':
1707 noaction++;
1708 break;
1709 case 'N':
1710 num_inodes = strtoul(optarg, &tmp, 0);
1711 if (*tmp) {
1712 com_err(program_name, 0,
1713 _("bad num inodes - %s"), optarg);
1714 exit(1);
1715 }
1716 break;
1717 case 'o':
1718 creator_os = optarg;
1719 break;
1720 case 'O':
1721 fs_features = optarg;
1722 break;
1723 case 'q':
1724 quiet = 1;
1725 break;
1726 case 'r':
1727 r_opt = strtoul(optarg, &tmp, 0);
1728 if (*tmp) {
1729 com_err(program_name, 0,
1730 _("bad revision level - %s"), optarg);
1731 exit(1);
1732 }
1733 if (r_opt > EXT2_MAX_SUPP_REV) {
1734 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1735 _("while trying to create revision %d"), r_opt);
1736 exit(1);
1737 }
1738 fs_param.s_rev_level = r_opt;
1739 break;
1740 case 's': /* deprecated */
1741 s_opt = atoi(optarg);
1742 break;
1743 case 'S':
1744 super_only = 1;
1745 break;
1746 case 't':
1747 if (fs_type) {
1748 com_err(program_name, 0, "%s",
1749 _("The -t option may only be used once"));
1750 exit(1);
1751 }
1752 fs_type = strdup(optarg);
1753 break;
1754 case 'T':
1755 if (usage_types) {
1756 com_err(program_name, 0, "%s",
1757 _("The -T option may only be used once"));
1758 exit(1);
1759 }
1760 usage_types = strdup(optarg);
1761 break;
1762 case 'U':
1763 fs_uuid = optarg;
1764 break;
1765 case 'd':
1766 root_dir = optarg;
1767 break;
1768 case 'v':
1769 verbose = 1;
1770 break;
1771 case 'V':
1772 /* Print version number and exit */
1773 show_version_only++;
1774 break;
1775 default:
1776 usage();
1777 }
1778 }
1779 if ((optind == argc) && !show_version_only)
1780 usage();
1781 device_name = argv[optind++];
1782
1783 if (!quiet || show_version_only)
1784 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1785 E2FSPROGS_DATE);
1786
1787 if (show_version_only) {
1788 fprintf(stderr, _("\tUsing %s\n"),
1789 error_message(EXT2_ET_BASE));
1790 exit(0);
1791 }
1792
1793 /*
1794 * If there's no blocksize specified and there is a journal
1795 * device, use it to figure out the blocksize
1796 */
1797 if (blocksize <= 0 && journal_device) {
1798 ext2_filsys jfs;
1799 io_manager io_ptr;
1800
1801 #ifdef CONFIG_TESTIO_DEBUG
1802 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1803 io_ptr = test_io_manager;
1804 test_io_backing_manager = unix_io_manager;
1805 } else
1806 #endif
1807 io_ptr = unix_io_manager;
1808 retval = ext2fs_open(journal_device,
1809 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1810 0, io_ptr, &jfs);
1811 if (retval) {
1812 com_err(program_name, retval,
1813 _("while trying to open journal device %s\n"),
1814 journal_device);
1815 exit(1);
1816 }
1817 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1818 com_err(program_name, 0,
1819 _("Journal dev blocksize (%d) smaller than "
1820 "minimum blocksize %d\n"), jfs->blocksize,
1821 -blocksize);
1822 exit(1);
1823 }
1824 blocksize = jfs->blocksize;
1825 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1826 fs_param.s_log_block_size =
1827 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1828 ext2fs_close_free(&jfs);
1829 }
1830
1831 if (optind < argc) {
1832 fs_blocks_count = parse_num_blocks2(argv[optind++],
1833 fs_param.s_log_block_size);
1834 if (!fs_blocks_count) {
1835 com_err(program_name, 0,
1836 _("invalid blocks '%s' on device '%s'"),
1837 argv[optind - 1], device_name);
1838 exit(1);
1839 }
1840 }
1841 if (optind < argc)
1842 usage();
1843
1844 profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1845 &proceed_delay);
1846
1847 /* The isatty() test is so we don't break existing scripts */
1848 flags = CREATE_FILE;
1849 if (isatty(0) && isatty(1))
1850 flags |= CHECK_FS_EXIST;
1851 if (!quiet)
1852 flags |= VERBOSE_CREATE;
1853 if (!check_plausibility(device_name, flags, &is_device) && !force)
1854 proceed_question(proceed_delay);
1855
1856 check_mount(device_name, force, _("filesystem"));
1857
1858 /* Determine the size of the device (if possible) */
1859 if (noaction && fs_blocks_count) {
1860 dev_size = fs_blocks_count;
1861 retval = 0;
1862 } else
1863 retval = ext2fs_get_device_size2(device_name,
1864 EXT2_BLOCK_SIZE(&fs_param),
1865 &dev_size);
1866
1867 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1868 com_err(program_name, retval, "%s",
1869 _("while trying to determine filesystem size"));
1870 exit(1);
1871 }
1872 if (!fs_blocks_count) {
1873 if (retval == EXT2_ET_UNIMPLEMENTED) {
1874 com_err(program_name, 0, "%s",
1875 _("Couldn't determine device size; you "
1876 "must specify\nthe size of the "
1877 "filesystem\n"));
1878 exit(1);
1879 } else {
1880 if (dev_size == 0) {
1881 com_err(program_name, 0, "%s",
1882 _("Device size reported to be zero. "
1883 "Invalid partition specified, or\n\t"
1884 "partition table wasn't reread "
1885 "after running fdisk, due to\n\t"
1886 "a modified partition being busy "
1887 "and in use. You may need to reboot\n\t"
1888 "to re-read your partition table.\n"
1889 ));
1890 exit(1);
1891 }
1892 fs_blocks_count = dev_size;
1893 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
1894 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
1895 EXT2_BLOCK_SIZE(&fs_param))-1));
1896 }
1897 } else if (!force && is_device && (fs_blocks_count > dev_size)) {
1898 com_err(program_name, 0, "%s",
1899 _("Filesystem larger than apparent device size."));
1900 proceed_question(proceed_delay);
1901 }
1902
1903 if (!fs_type)
1904 profile_get_string(profile, "devices", device_name,
1905 "fs_type", 0, &fs_type);
1906 if (!usage_types)
1907 profile_get_string(profile, "devices", device_name,
1908 "usage_types", 0, &usage_types);
1909
1910 /*
1911 * We have the file system (or device) size, so we can now
1912 * determine the appropriate file system types so the fs can
1913 * be appropriately configured.
1914 */
1915 fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
1916 fs_blocks_count ? fs_blocks_count : dev_size,
1917 argv[0]);
1918 if (!fs_types) {
1919 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
1920 exit(1);
1921 }
1922
1923 /* Figure out what features should be enabled */
1924
1925 tmp = NULL;
1926 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
1927 tmp = get_string_from_profile(fs_types, "base_features",
1928 "sparse_super,filetype,resize_inode,dir_index");
1929 edit_feature(tmp, &fs_param.s_feature_compat);
1930 free(tmp);
1931
1932 /* And which mount options as well */
1933 tmp = get_string_from_profile(fs_types, "default_mntopts",
1934 "acl,user_xattr");
1935 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
1936 if (tmp)
1937 free(tmp);
1938
1939 for (cpp = fs_types; *cpp; cpp++) {
1940 tmp = NULL;
1941 profile_get_string(profile, "fs_types", *cpp,
1942 "features", "", &tmp);
1943 if (tmp && *tmp)
1944 edit_feature(tmp, &fs_param.s_feature_compat);
1945 if (tmp)
1946 free(tmp);
1947 }
1948 tmp = get_string_from_profile(fs_types, "default_features",
1949 "");
1950 }
1951 /* Mask off features which aren't supported by the Hurd */
1952 if (for_hurd(creator_os)) {
1953 fs_param.s_feature_incompat &= ~EXT2_FEATURE_INCOMPAT_FILETYPE;
1954 fs_param.s_feature_ro_compat &=
1955 ~(EXT4_FEATURE_RO_COMPAT_HUGE_FILE |
1956 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
1957 }
1958 edit_feature(fs_features ? fs_features : tmp,
1959 &fs_param.s_feature_compat);
1960 if (tmp)
1961 free(tmp);
1962 /*
1963 * If the user specified features incompatible with the Hurd, complain
1964 */
1965 if (for_hurd(creator_os)) {
1966 if (fs_param.s_feature_incompat &
1967 EXT2_FEATURE_INCOMPAT_FILETYPE) {
1968 fprintf(stderr, "%s", _("The HURD does not support the "
1969 "filetype feature.\n"));
1970 exit(1);
1971 }
1972 if (fs_param.s_feature_ro_compat &
1973 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) {
1974 fprintf(stderr, "%s", _("The HURD does not support the "
1975 "huge_file feature.\n"));
1976 exit(1);
1977 }
1978 if (fs_param.s_feature_ro_compat &
1979 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) {
1980 fprintf(stderr, "%s", _("The HURD does not support the "
1981 "metadata_csum feature.\n"));
1982 exit(1);
1983 }
1984 }
1985
1986 /* Get the hardware sector sizes, if available */
1987 retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
1988 if (retval) {
1989 com_err(program_name, retval, "%s",
1990 _("while trying to determine hardware sector size"));
1991 exit(1);
1992 }
1993 retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
1994 if (retval) {
1995 com_err(program_name, retval, "%s",
1996 _("while trying to determine physical sector size"));
1997 exit(1);
1998 }
1999
2000 tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2001 if (tmp != NULL)
2002 lsector_size = atoi(tmp);
2003 tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2004 if (tmp != NULL)
2005 psector_size = atoi(tmp);
2006
2007 /* Older kernels may not have physical/logical distinction */
2008 if (!psector_size)
2009 psector_size = lsector_size;
2010
2011 if (blocksize <= 0) {
2012 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2013
2014 if (use_bsize == -1) {
2015 use_bsize = sys_page_size;
2016 if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2017 use_bsize = 4096;
2018 }
2019 if (lsector_size && use_bsize < lsector_size)
2020 use_bsize = lsector_size;
2021 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2022 use_bsize = -blocksize;
2023 blocksize = use_bsize;
2024 fs_blocks_count /= (blocksize / 1024);
2025 } else {
2026 if (blocksize < lsector_size) { /* Impossible */
2027 com_err(program_name, EINVAL, "%s",
2028 _("while setting blocksize; too small "
2029 "for device\n"));
2030 exit(1);
2031 } else if ((blocksize < psector_size) &&
2032 (psector_size <= sys_page_size)) { /* Suboptimal */
2033 fprintf(stderr, _("Warning: specified blocksize %d is "
2034 "less than device physical sectorsize %d\n"),
2035 blocksize, psector_size);
2036 }
2037 }
2038
2039 fs_param.s_log_block_size =
2040 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2041
2042 /*
2043 * We now need to do a sanity check of fs_blocks_count for
2044 * 32-bit vs 64-bit block number support.
2045 */
2046 if ((fs_blocks_count > MAX_32_NUM) &&
2047 (fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT))
2048 fs_param.s_feature_compat &= ~EXT2_FEATURE_COMPAT_RESIZE_INODE;
2049 if ((fs_blocks_count > MAX_32_NUM) &&
2050 !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) &&
2051 get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2052 fs_param.s_feature_incompat |= EXT4_FEATURE_INCOMPAT_64BIT;
2053 fs_param.s_feature_compat &= ~EXT2_FEATURE_COMPAT_RESIZE_INODE;
2054 }
2055 if ((fs_blocks_count > MAX_32_NUM) &&
2056 !(fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)) {
2057 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2058 "too big to be expressed\n\t"
2059 "in 32 bits using a blocksize of %d.\n"),
2060 program_name, fs_blocks_count, device_name,
2061 EXT2_BLOCK_SIZE(&fs_param));
2062 exit(1);
2063 }
2064
2065 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2066
2067 if (fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
2068 fs_types[0] = strdup("journal");
2069 fs_types[1] = 0;
2070 }
2071
2072 if (verbose) {
2073 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2074 print_str_list(fs_types);
2075 }
2076
2077 if (r_opt == EXT2_GOOD_OLD_REV &&
2078 (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2079 fs_param.s_feature_ro_compat)) {
2080 fprintf(stderr, "%s", _("Filesystem features not supported "
2081 "with revision 0 filesystems\n"));
2082 exit(1);
2083 }
2084
2085 if (s_opt > 0) {
2086 if (r_opt == EXT2_GOOD_OLD_REV) {
2087 fprintf(stderr, "%s",
2088 _("Sparse superblocks not supported "
2089 "with revision 0 filesystems\n"));
2090 exit(1);
2091 }
2092 fs_param.s_feature_ro_compat |=
2093 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
2094 } else if (s_opt == 0)
2095 fs_param.s_feature_ro_compat &=
2096 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
2097
2098 if (journal_size != 0) {
2099 if (r_opt == EXT2_GOOD_OLD_REV) {
2100 fprintf(stderr, "%s", _("Journals not supported with "
2101 "revision 0 filesystems\n"));
2102 exit(1);
2103 }
2104 fs_param.s_feature_compat |=
2105 EXT3_FEATURE_COMPAT_HAS_JOURNAL;
2106 }
2107
2108 /* Get reserved_ratio from profile if not specified on cmd line. */
2109 if (reserved_ratio < 0.0) {
2110 reserved_ratio = get_double_from_profile(
2111 fs_types, "reserved_ratio", 5.0);
2112 if (reserved_ratio > 50 || reserved_ratio < 0) {
2113 com_err(program_name, 0,
2114 _("invalid reserved blocks percent - %lf"),
2115 reserved_ratio);
2116 exit(1);
2117 }
2118 }
2119
2120 if (fs_param.s_feature_incompat &
2121 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
2122 reserved_ratio = 0;
2123 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2124 fs_param.s_feature_compat = 0;
2125 fs_param.s_feature_ro_compat = 0;
2126 }
2127
2128 /* Check the user's mkfs options for 64bit */
2129 if ((fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) &&
2130 !(fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS)) {
2131 printf("%s", _("Extents MUST be enabled for a 64-bit "
2132 "filesystem. Pass -O extents to rectify.\n"));
2133 exit(1);
2134 }
2135
2136 /* Set first meta blockgroup via an environment variable */
2137 /* (this is mostly for debugging purposes) */
2138 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
2139 ((tmp = getenv("MKE2FS_FIRST_META_BG"))))
2140 fs_param.s_first_meta_bg = atoi(tmp);
2141 if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) {
2142 if (!cluster_size)
2143 cluster_size = get_int_from_profile(fs_types,
2144 "cluster_size",
2145 blocksize*16);
2146 fs_param.s_log_cluster_size =
2147 int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2148 if (fs_param.s_log_cluster_size &&
2149 fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2150 com_err(program_name, 0, "%s",
2151 _("The cluster size may not be "
2152 "smaller than the block size.\n"));
2153 exit(1);
2154 }
2155 } else if (cluster_size) {
2156 com_err(program_name, 0, "%s",
2157 _("specifying a cluster size requires the "
2158 "bigalloc feature"));
2159 exit(1);
2160 } else
2161 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2162
2163 if (inode_ratio == 0) {
2164 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2165 8192);
2166 if (inode_ratio < blocksize)
2167 inode_ratio = blocksize;
2168 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2169 inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2170 }
2171
2172 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2173 retval = get_device_geometry(device_name, &fs_param, psector_size);
2174 if (retval < 0) {
2175 fprintf(stderr,
2176 _("warning: Unable to get device geometry for %s\n"),
2177 device_name);
2178 } else if (retval) {
2179 printf(_("%s alignment is offset by %lu bytes.\n"),
2180 device_name, retval);
2181 printf(_("This may result in very poor performance, "
2182 "(re)-partitioning suggested.\n"));
2183 }
2184 #endif
2185
2186 num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2187
2188 blocksize = EXT2_BLOCK_SIZE(&fs_param);
2189
2190 /*
2191 * Initialize s_desc_size so that the parse_extended_opts()
2192 * can correctly handle "-E resize=NNN" if the 64-bit option
2193 * is set.
2194 */
2195 if (fs_param.s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT)
2196 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2197
2198 /* This check should happen beyond the last assignment to blocksize */
2199 if (blocksize > sys_page_size) {
2200 if (!force) {
2201 com_err(program_name, 0,
2202 _("%d-byte blocks too big for system (max %d)"),
2203 blocksize, sys_page_size);
2204 proceed_question(proceed_delay);
2205 }
2206 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2207 "(max %d), forced to continue\n"),
2208 blocksize, sys_page_size);
2209 }
2210
2211 /*
2212 * On newer kernels we do have lazy_itable_init support. So pick the
2213 * right default in case ext4 module is not loaded.
2214 */
2215 if (is_before_linux_ver(2, 6, 37))
2216 lazy_itable_init = 0;
2217 else
2218 lazy_itable_init = 1;
2219
2220 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2221 lazy_itable_init = 1;
2222
2223 lazy_itable_init = get_bool_from_profile(fs_types,
2224 "lazy_itable_init",
2225 lazy_itable_init);
2226 discard = get_bool_from_profile(fs_types, "discard" , discard);
2227 journal_flags |= get_bool_from_profile(fs_types,
2228 "lazy_journal_init", 0) ?
2229 EXT2_MKJOURNAL_LAZYINIT : 0;
2230 journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2231
2232 if (!journal_location_string)
2233 journal_location_string = get_string_from_profile(fs_types,
2234 "journal_location", "");
2235 if ((journal_location == ~0ULL) && journal_location_string &&
2236 *journal_location_string)
2237 journal_location = parse_num_blocks2(journal_location_string,
2238 fs_param.s_log_block_size);
2239 free(journal_location_string);
2240
2241 packed_meta_blocks = get_bool_from_profile(fs_types,
2242 "packed_meta_blocks", 0);
2243 if (packed_meta_blocks)
2244 journal_location = 0;
2245
2246 /* Get options from profile */
2247 for (cpp = fs_types; *cpp; cpp++) {
2248 tmp = NULL;
2249 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2250 if (tmp && *tmp)
2251 parse_extended_opts(&fs_param, tmp);
2252 free(tmp);
2253 }
2254
2255 if (extended_opts)
2256 parse_extended_opts(&fs_param, extended_opts);
2257
2258 /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2259 if ((fs_param.s_feature_ro_compat &
2260 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) &&
2261 (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
2262 fs_param.s_feature_ro_compat &=
2263 ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
2264
2265 /* Can't support bigalloc feature without extents feature */
2266 if ((fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) &&
2267 !(fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS)) {
2268 com_err(program_name, 0, "%s",
2269 _("Can't support bigalloc feature without "
2270 "extents feature"));
2271 exit(1);
2272 }
2273
2274 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
2275 (fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
2276 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2277 "features are not compatible.\n"
2278 "They can not be both enabled "
2279 "simultaneously.\n"));
2280 exit(1);
2281 }
2282
2283 if (!quiet &&
2284 (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC))
2285 fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2286 "still under development\n"
2287 "See https://ext4.wiki.kernel.org/"
2288 "index.php/Bigalloc for more information\n\n"));
2289
2290 /*
2291 * Since sparse_super is the default, we would only have a problem
2292 * here if it was explicitly disabled.
2293 */
2294 if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) &&
2295 !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
2296 com_err(program_name, 0, "%s",
2297 _("reserved online resize blocks not supported "
2298 "on non-sparse filesystem"));
2299 exit(1);
2300 }
2301
2302 if (fs_param.s_blocks_per_group) {
2303 if (fs_param.s_blocks_per_group < 256 ||
2304 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2305 com_err(program_name, 0, "%s",
2306 _("blocks per group count out of range"));
2307 exit(1);
2308 }
2309 }
2310
2311 /*
2312 * If the bigalloc feature is enabled, then the -g option will
2313 * specify the number of clusters per group.
2314 */
2315 if (fs_param.s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_BIGALLOC) {
2316 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2317 fs_param.s_blocks_per_group = 0;
2318 }
2319
2320 if (inode_size == 0)
2321 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2322 if (!flex_bg_size && (fs_param.s_feature_incompat &
2323 EXT4_FEATURE_INCOMPAT_FLEX_BG))
2324 flex_bg_size = get_uint_from_profile(fs_types,
2325 "flex_bg_size", 16);
2326 if (flex_bg_size) {
2327 if (!(fs_param.s_feature_incompat &
2328 EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
2329 com_err(program_name, 0, "%s",
2330 _("Flex_bg feature not enabled, so "
2331 "flex_bg size may not be specified"));
2332 exit(1);
2333 }
2334 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2335 }
2336
2337 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2338 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2339 inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2340 inode_size & (inode_size - 1)) {
2341 com_err(program_name, 0,
2342 _("invalid inode size %d (min %d/max %d)"),
2343 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2344 blocksize);
2345 exit(1);
2346 }
2347 fs_param.s_inode_size = inode_size;
2348 }
2349
2350 /*
2351 * If inode size is 128 and inline data is enabled, we need
2352 * to notify users that inline data will never be useful.
2353 */
2354 if ((fs_param.s_feature_incompat &
2355 EXT4_FEATURE_INCOMPAT_INLINE_DATA) &&
2356 fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2357 com_err(program_name, 0,
2358 _("inode size is %d, inline data is useless"),
2359 fs_param.s_inode_size);
2360 exit(1);
2361 }
2362
2363 /* Make sure number of inodes specified will fit in 32 bits */
2364 if (num_inodes == 0) {
2365 unsigned long long n;
2366 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2367 if (n > MAX_32_NUM) {
2368 if (fs_param.s_feature_incompat &
2369 EXT4_FEATURE_INCOMPAT_64BIT)
2370 num_inodes = MAX_32_NUM;
2371 else {
2372 com_err(program_name, 0,
2373 _("too many inodes (%llu), raise "
2374 "inode ratio?"), n);
2375 exit(1);
2376 }
2377 }
2378 } else if (num_inodes > MAX_32_NUM) {
2379 com_err(program_name, 0,
2380 _("too many inodes (%llu), specify < 2^32 inodes"),
2381 num_inodes);
2382 exit(1);
2383 }
2384 /*
2385 * Calculate number of inodes based on the inode ratio
2386 */
2387 fs_param.s_inodes_count = num_inodes ? num_inodes :
2388 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2389
2390 if ((((unsigned long long)fs_param.s_inodes_count) *
2391 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2392 ((ext2fs_blocks_count(&fs_param)) *
2393 EXT2_BLOCK_SIZE(&fs_param))) {
2394 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2395 "(%u) too big for a\n\t"
2396 "filesystem with %llu blocks, "
2397 "specify higher inode_ratio (-i)\n\t"
2398 "or lower inode count (-N).\n"),
2399 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2400 fs_param.s_inodes_count,
2401 (unsigned long long) ext2fs_blocks_count(&fs_param));
2402 exit(1);
2403 }
2404
2405 /*
2406 * Calculate number of blocks to reserve
2407 */
2408 ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2409 ext2fs_blocks_count(&fs_param) / 100.0);
2410
2411 if (fs_param.s_feature_compat & EXT4_FEATURE_COMPAT_SPARSE_SUPER2) {
2412 if (num_backups >= 1)
2413 fs_param.s_backup_bgs[0] = 1;
2414 if (num_backups >= 2)
2415 fs_param.s_backup_bgs[1] = ~0;
2416 }
2417
2418 free(fs_type);
2419 free(usage_types);
2420 }
2421
2422 static int should_do_undo(const char *name)
2423 {
2424 errcode_t retval;
2425 io_channel channel;
2426 __u16 s_magic;
2427 struct ext2_super_block super;
2428 io_manager manager = unix_io_manager;
2429 int csum_flag, force_undo;
2430
2431 csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
2432 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
2433 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
2434 force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2435 if (!force_undo && (!csum_flag || !lazy_itable_init))
2436 return 0;
2437
2438 retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel);
2439 if (retval) {
2440 /*
2441 * We don't handle error cases instead we
2442 * declare that the file system doesn't exist
2443 * and let the rest of mke2fs take care of
2444 * error
2445 */
2446 retval = 0;
2447 goto open_err_out;
2448 }
2449
2450 io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2451 retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2452 if (retval) {
2453 retval = 0;
2454 goto err_out;
2455 }
2456
2457 #if defined(WORDS_BIGENDIAN)
2458 s_magic = ext2fs_swab16(super.s_magic);
2459 #else
2460 s_magic = super.s_magic;
2461 #endif
2462
2463 if (s_magic == EXT2_SUPER_MAGIC)
2464 retval = 1;
2465
2466 err_out:
2467 io_channel_close(channel);
2468
2469 open_err_out:
2470
2471 return retval;
2472 }
2473
2474 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2475 {
2476 errcode_t retval = ENOMEM;
2477 char *tdb_dir = NULL, *tdb_file = NULL;
2478 char *dev_name, *tmp_name;
2479 int free_tdb_dir = 0;
2480
2481 /*
2482 * Configuration via a conf file would be
2483 * nice
2484 */
2485 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2486 if (!tdb_dir) {
2487 profile_get_string(profile, "defaults",
2488 "undo_dir", 0, "/var/lib/e2fsprogs",
2489 &tdb_dir);
2490 free_tdb_dir = 1;
2491 }
2492
2493 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2494 access(tdb_dir, W_OK)) {
2495 if (free_tdb_dir)
2496 free(tdb_dir);
2497 return 0;
2498 }
2499
2500 tmp_name = strdup(name);
2501 if (!tmp_name)
2502 goto errout;
2503 dev_name = basename(tmp_name);
2504 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2505 if (!tdb_file) {
2506 free(tmp_name);
2507 goto errout;
2508 }
2509 sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2510 free(tmp_name);
2511
2512 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2513 retval = errno;
2514 goto errout;
2515 }
2516
2517 set_undo_io_backing_manager(*io_ptr);
2518 *io_ptr = undo_io_manager;
2519 retval = set_undo_io_backup_file(tdb_file);
2520 if (retval)
2521 goto errout;
2522 printf(_("Overwriting existing filesystem; this can be undone "
2523 "using the command:\n"
2524 " e2undo %s %s\n\n"), tdb_file, name);
2525
2526 if (free_tdb_dir)
2527 free(tdb_dir);
2528 free(tdb_file);
2529 return 0;
2530
2531 errout:
2532 if (free_tdb_dir)
2533 free(tdb_dir);
2534 free(tdb_file);
2535 com_err(program_name, retval, "%s",
2536 _("while trying to setup undo file\n"));
2537 return retval;
2538 }
2539
2540 static int mke2fs_discard_device(ext2_filsys fs)
2541 {
2542 struct ext2fs_numeric_progress_struct progress;
2543 blk64_t blocks = ext2fs_blocks_count(fs->super);
2544 blk64_t count = DISCARD_STEP_MB;
2545 blk64_t cur;
2546 int retval = 0;
2547
2548 /*
2549 * Let's try if discard really works on the device, so
2550 * we do not print numeric progress resulting in failure
2551 * afterwards.
2552 */
2553 retval = io_channel_discard(fs->io, 0, fs->blocksize);
2554 if (retval)
2555 return retval;
2556 cur = fs->blocksize;
2557
2558 count *= (1024 * 1024);
2559 count /= fs->blocksize;
2560
2561 ext2fs_numeric_progress_init(fs, &progress,
2562 _("Discarding device blocks: "),
2563 blocks);
2564 while (cur < blocks) {
2565 ext2fs_numeric_progress_update(fs, &progress, cur);
2566
2567 if (cur + count > blocks)
2568 count = blocks - cur;
2569
2570 retval = io_channel_discard(fs->io, cur, count);
2571 if (retval)
2572 break;
2573 cur += count;
2574 }
2575
2576 if (retval) {
2577 ext2fs_numeric_progress_close(fs, &progress,
2578 _("failed - "));
2579 if (!quiet)
2580 printf("%s\n",error_message(retval));
2581 } else
2582 ext2fs_numeric_progress_close(fs, &progress,
2583 _("done \n"));
2584
2585 return retval;
2586 }
2587
2588 static void fix_cluster_bg_counts(ext2_filsys fs)
2589 {
2590 blk64_t block, num_blocks, last_block, next;
2591 blk64_t tot_free = 0;
2592 errcode_t retval;
2593 dgrp_t group = 0;
2594 int grp_free = 0;
2595
2596 num_blocks = ext2fs_blocks_count(fs->super);
2597 last_block = ext2fs_group_last_block2(fs, group);
2598 block = fs->super->s_first_data_block;
2599 while (block < num_blocks) {
2600 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2601 block, last_block, &next);
2602 if (retval == 0)
2603 block = next;
2604 else {
2605 block = last_block + 1;
2606 goto next_bg;
2607 }
2608
2609 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2610 block, last_block, &next);
2611 if (retval)
2612 next = last_block + 1;
2613 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2614 tot_free += next - block;
2615 block = next;
2616
2617 if (block > last_block) {
2618 next_bg:
2619 ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2620 ext2fs_group_desc_csum_set(fs, group);
2621 grp_free = 0;
2622 group++;
2623 last_block = ext2fs_group_last_block2(fs, group);
2624 }
2625 }
2626 ext2fs_free_blocks_count_set(fs->super, tot_free);
2627 }
2628
2629 static int create_quota_inodes(ext2_filsys fs)
2630 {
2631 quota_ctx_t qctx;
2632
2633 quota_init_context(&qctx, fs, -1);
2634 quota_compute_usage(qctx);
2635 quota_write_inode(qctx, quotatype);
2636 quota_release_context(&qctx);
2637
2638 return 0;
2639 }
2640
2641 static errcode_t set_error_behavior(ext2_filsys fs)
2642 {
2643 char *arg = NULL;
2644 short errors = fs->super->s_errors;
2645
2646 arg = get_string_from_profile(fs_types, "errors", NULL);
2647 if (arg == NULL)
2648 goto try_user;
2649
2650 if (strcmp(arg, "continue") == 0)
2651 errors = EXT2_ERRORS_CONTINUE;
2652 else if (strcmp(arg, "remount-ro") == 0)
2653 errors = EXT2_ERRORS_RO;
2654 else if (strcmp(arg, "panic") == 0)
2655 errors = EXT2_ERRORS_PANIC;
2656 else {
2657 com_err(program_name, 0,
2658 _("bad error behavior in profile - %s"),
2659 arg);
2660 free(arg);
2661 return EXT2_ET_INVALID_ARGUMENT;
2662 }
2663 free(arg);
2664
2665 try_user:
2666 if (errors_behavior)
2667 errors = errors_behavior;
2668
2669 fs->super->s_errors = errors;
2670 return 0;
2671 }
2672
2673 int main (int argc, char *argv[])
2674 {
2675 errcode_t retval = 0;
2676 ext2_filsys fs;
2677 badblocks_list bb_list = 0;
2678 unsigned int journal_blocks = 0;
2679 unsigned int i, checkinterval;
2680 int max_mnt_count;
2681 int val, hash_alg;
2682 int flags;
2683 int old_bitmaps;
2684 io_manager io_ptr;
2685 char opt_string[40];
2686 char *hash_alg_str;
2687 int itable_zeroed = 0;
2688
2689 #ifdef ENABLE_NLS
2690 setlocale(LC_MESSAGES, "");
2691 setlocale(LC_CTYPE, "");
2692 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2693 textdomain(NLS_CAT_NAME);
2694 set_com_err_gettext(gettext);
2695 #endif
2696 PRS(argc, argv);
2697
2698 #ifdef CONFIG_TESTIO_DEBUG
2699 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2700 io_ptr = test_io_manager;
2701 test_io_backing_manager = unix_io_manager;
2702 } else
2703 #endif
2704 io_ptr = unix_io_manager;
2705
2706 if (should_do_undo(device_name)) {
2707 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2708 if (retval)
2709 exit(1);
2710 }
2711
2712 /*
2713 * Initialize the superblock....
2714 */
2715 flags = EXT2_FLAG_EXCLUSIVE;
2716 if (direct_io)
2717 flags |= EXT2_FLAG_DIRECT_IO;
2718 profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2719 &old_bitmaps);
2720 if (!old_bitmaps)
2721 flags |= EXT2_FLAG_64BITS;
2722 /*
2723 * By default, we print how many inode tables or block groups
2724 * or whatever we've written so far. The quiet flag disables
2725 * this, along with a lot of other output.
2726 */
2727 if (!quiet)
2728 flags |= EXT2_FLAG_PRINT_PROGRESS;
2729 retval = ext2fs_initialize(device_name, flags, &fs_param, io_ptr, &fs);
2730 if (retval) {
2731 com_err(device_name, retval, "%s",
2732 _("while setting up superblock"));
2733 exit(1);
2734 }
2735 fs->progress_ops = &ext2fs_numeric_progress_ops;
2736
2737 /* Set the error behavior */
2738 retval = set_error_behavior(fs);
2739 if (retval)
2740 usage();
2741
2742 /* Check the user's mkfs options for metadata checksumming */
2743 if (!quiet &&
2744 EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
2745 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
2746 if (!EXT2_HAS_INCOMPAT_FEATURE(fs->super,
2747 EXT3_FEATURE_INCOMPAT_EXTENTS))
2748 printf("%s",
2749 _("Extents are not enabled. The file extent "
2750 "tree can be checksummed, whereas block maps "
2751 "cannot. Not enabling extents reduces the "
2752 "coverage of metadata checksumming. "
2753 "Pass -O extents to rectify.\n"));
2754 if (!EXT2_HAS_INCOMPAT_FEATURE(fs->super,
2755 EXT4_FEATURE_INCOMPAT_64BIT))
2756 printf("%s",
2757 _("64-bit filesystem support is not enabled. "
2758 "The larger fields afforded by this feature "
2759 "enable full-strength checksumming. "
2760 "Pass -O 64bit to rectify.\n"));
2761 }
2762
2763 /* Calculate journal blocks */
2764 if (!journal_device && ((journal_size) ||
2765 (fs_param.s_feature_compat &
2766 EXT3_FEATURE_COMPAT_HAS_JOURNAL)))
2767 journal_blocks = figure_journal_size(journal_size, fs);
2768
2769 /* Can't undo discard ... */
2770 if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
2771 retval = mke2fs_discard_device(fs);
2772 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
2773 if (verbose)
2774 printf("%s",
2775 _("Discard succeeded and will return "
2776 "0s - skipping inode table wipe\n"));
2777 lazy_itable_init = 1;
2778 itable_zeroed = 1;
2779 zero_hugefile = 0;
2780 }
2781 }
2782
2783 sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
2784 32768 : fs->blocksize * 8);
2785 io_channel_set_options(fs->io, opt_string);
2786 if (offset) {
2787 sprintf(opt_string, "offset=%llu", offset);
2788 io_channel_set_options(fs->io, opt_string);
2789 }
2790
2791 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
2792 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
2793
2794 if ((fs_param.s_feature_incompat &
2795 (EXT3_FEATURE_INCOMPAT_EXTENTS|EXT4_FEATURE_INCOMPAT_FLEX_BG)) ||
2796 (fs_param.s_feature_ro_compat &
2797 (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
2798 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
2799 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
2800 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE)))
2801 fs->super->s_kbytes_written = 1;
2802
2803 /*
2804 * Wipe out the old on-disk superblock
2805 */
2806 if (!noaction)
2807 zap_sector(fs, 2, 6);
2808
2809 /*
2810 * Parse or generate a UUID for the filesystem
2811 */
2812 if (fs_uuid) {
2813 if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) {
2814 com_err(device_name, 0, "could not parse UUID: %s\n",
2815 fs_uuid);
2816 exit(1);
2817 }
2818 } else
2819 uuid_generate(fs->super->s_uuid);
2820 ext2fs_init_csum_seed(fs);
2821
2822 /*
2823 * Initialize the directory index variables
2824 */
2825 hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
2826 "half_md4");
2827 hash_alg = e2p_string2hash(hash_alg_str);
2828 free(hash_alg_str);
2829 fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
2830 EXT2_HASH_HALF_MD4;
2831 uuid_generate((unsigned char *) fs->super->s_hash_seed);
2832
2833 /*
2834 * Periodic checks can be enabled/disabled via config file.
2835 * Note we override the kernel include file's idea of what the default
2836 * check interval (never) should be. It's a good idea to check at
2837 * least *occasionally*, specially since servers will never rarely get
2838 * to reboot, since Linux is so robust these days. :-)
2839 *
2840 * 180 days (six months) seems like a good value.
2841 */
2842 #ifdef EXT2_DFL_CHECKINTERVAL
2843 #undef EXT2_DFL_CHECKINTERVAL
2844 #endif
2845 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
2846
2847 if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
2848 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
2849 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
2850 /*
2851 * Add "jitter" to the superblock's check interval so that we
2852 * don't check all the filesystems at the same time. We use a
2853 * kludgy hack of using the UUID to derive a random jitter value
2854 */
2855 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
2856 val += fs->super->s_uuid[i];
2857 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
2858 } else
2859 fs->super->s_max_mnt_count = -1;
2860
2861 /*
2862 * Override the creator OS, if applicable
2863 */
2864 if (creator_os && !set_os(fs->super, creator_os)) {
2865 com_err (program_name, 0, _("unknown os - %s"), creator_os);
2866 exit(1);
2867 }
2868
2869 /*
2870 * For the Hurd, we will turn off filetype since it doesn't
2871 * support it.
2872 */
2873 if (fs->super->s_creator_os == EXT2_OS_HURD)
2874 fs->super->s_feature_incompat &=
2875 ~EXT2_FEATURE_INCOMPAT_FILETYPE;
2876
2877 /*
2878 * Set the volume label...
2879 */
2880 if (volume_label) {
2881 memset(fs->super->s_volume_name, 0,
2882 sizeof(fs->super->s_volume_name));
2883 strncpy(fs->super->s_volume_name, volume_label,
2884 sizeof(fs->super->s_volume_name));
2885 }
2886
2887 /*
2888 * Set the last mount directory
2889 */
2890 if (mount_dir) {
2891 memset(fs->super->s_last_mounted, 0,
2892 sizeof(fs->super->s_last_mounted));
2893 strncpy(fs->super->s_last_mounted, mount_dir,
2894 sizeof(fs->super->s_last_mounted));
2895 }
2896
2897 if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
2898 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
2899 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
2900
2901 if (!quiet || noaction)
2902 show_stats(fs);
2903
2904 if (noaction)
2905 exit(0);
2906
2907 if (fs->super->s_feature_incompat &
2908 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
2909 create_journal_dev(fs);
2910 exit(ext2fs_close_free(&fs) ? 1 : 0);
2911 }
2912
2913 if (bad_blocks_filename)
2914 read_bb_file(fs, &bb_list, bad_blocks_filename);
2915 if (cflag)
2916 test_disk(fs, &bb_list);
2917 handle_bad_blocks(fs, bb_list);
2918
2919 fs->stride = fs_stride = fs->super->s_raid_stride;
2920 if (!quiet)
2921 printf("%s", _("Allocating group tables: "));
2922 if ((fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_FLEX_BG) &&
2923 packed_meta_blocks)
2924 retval = packed_allocate_tables(fs);
2925 else
2926 retval = ext2fs_allocate_tables(fs);
2927 if (retval) {
2928 com_err(program_name, retval, "%s",
2929 _("while trying to allocate filesystem tables"));
2930 exit(1);
2931 }
2932 if (!quiet)
2933 printf("%s", _("done \n"));
2934
2935 retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
2936 if (retval) {
2937 com_err(program_name, retval, "%s",
2938 _("\n\twhile converting subcluster bitmap"));
2939 exit(1);
2940 }
2941
2942 if (super_only) {
2943 fs->super->s_state |= EXT2_ERROR_FS;
2944 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
2945 /*
2946 * The command "mke2fs -S" is used to recover
2947 * corrupted file systems, so do not mark any of the
2948 * inodes as unused; we want e2fsck to consider all
2949 * inodes as potentially containing recoverable data.
2950 */
2951 if (ext2fs_has_group_desc_csum(fs)) {
2952 for (i = 0; i < fs->group_desc_count; i++)
2953 ext2fs_bg_itable_unused_set(fs, i, 0);
2954 }
2955 } else {
2956 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
2957 blk64_t rsv = 65536 / fs->blocksize;
2958 blk64_t blocks = ext2fs_blocks_count(fs->super);
2959 blk64_t start;
2960 blk64_t ret_blk;
2961
2962 #ifdef ZAP_BOOTBLOCK
2963 zap_sector(fs, 0, 2);
2964 #endif
2965
2966 /*
2967 * Wipe out any old MD RAID (or other) metadata at the end
2968 * of the device. This will also verify that the device is
2969 * as large as we think. Be careful with very small devices.
2970 */
2971 start = (blocks & ~(rsv - 1));
2972 if (start > rsv)
2973 start -= rsv;
2974 if (start > 0)
2975 retval = ext2fs_zero_blocks2(fs, start, blocks - start,
2976 &ret_blk, NULL);
2977
2978 if (retval) {
2979 com_err(program_name, retval,
2980 _("while zeroing block %llu at end of filesystem"),
2981 ret_blk);
2982 }
2983 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
2984 create_root_dir(fs);
2985 create_lost_and_found(fs);
2986 reserve_inodes(fs);
2987 create_bad_block_inode(fs, bb_list);
2988 if (fs->super->s_feature_compat &
2989 EXT2_FEATURE_COMPAT_RESIZE_INODE) {
2990 retval = ext2fs_create_resize_inode(fs);
2991 if (retval) {
2992 com_err("ext2fs_create_resize_inode", retval,
2993 "%s",
2994 _("while reserving blocks for online resize"));
2995 exit(1);
2996 }
2997 }
2998 }
2999
3000 if (journal_device) {
3001 ext2_filsys jfs;
3002
3003 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3004 NULL) && !force)
3005 proceed_question(proceed_delay);
3006 check_mount(journal_device, force, _("journal"));
3007
3008 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3009 EXT2_FLAG_JOURNAL_DEV_OK, 0,
3010 fs->blocksize, unix_io_manager, &jfs);
3011 if (retval) {
3012 com_err(program_name, retval,
3013 _("while trying to open journal device %s\n"),
3014 journal_device);
3015 exit(1);
3016 }
3017 if (!quiet) {
3018 printf(_("Adding journal to device %s: "),
3019 journal_device);
3020 fflush(stdout);
3021 }
3022 retval = ext2fs_add_journal_device(fs, jfs);
3023 if(retval) {
3024 com_err (program_name, retval,
3025 _("\n\twhile trying to add journal to device %s"),
3026 journal_device);
3027 exit(1);
3028 }
3029 if (!quiet)
3030 printf("%s", _("done\n"));
3031 ext2fs_close_free(&jfs);
3032 free(journal_device);
3033 } else if ((journal_size) ||
3034 (fs_param.s_feature_compat &
3035 EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
3036 if (super_only) {
3037 printf("%s", _("Skipping journal creation in super-only mode\n"));
3038 fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3039 goto no_journal;
3040 }
3041
3042 if (!journal_blocks) {
3043 fs->super->s_feature_compat &=
3044 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
3045 goto no_journal;
3046 }
3047 if (!quiet) {
3048 printf(_("Creating journal (%u blocks): "),
3049 journal_blocks);
3050 fflush(stdout);
3051 }
3052 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
3053 journal_location,
3054 journal_flags);
3055 if (retval) {
3056 com_err(program_name, retval, "%s",
3057 _("\n\twhile trying to create journal"));
3058 exit(1);
3059 }
3060 if (!quiet)
3061 printf("%s", _("done\n"));
3062 }
3063 no_journal:
3064 if (!super_only &&
3065 fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_MMP) {
3066 retval = ext2fs_mmp_init(fs);
3067 if (retval) {
3068 fprintf(stderr, "%s",
3069 _("\nError while enabling multiple "
3070 "mount protection feature."));
3071 exit(1);
3072 }
3073 if (!quiet)
3074 printf(_("Multiple mount protection is enabled "
3075 "with update interval %d seconds.\n"),
3076 fs->super->s_mmp_update_interval);
3077 }
3078
3079 if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
3080 EXT4_FEATURE_RO_COMPAT_BIGALLOC))
3081 fix_cluster_bg_counts(fs);
3082 if (EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
3083 EXT4_FEATURE_RO_COMPAT_QUOTA))
3084 create_quota_inodes(fs);
3085
3086 retval = mk_hugefiles(fs, device_name);
3087 if (retval)
3088 com_err(program_name, retval, "while creating huge files");
3089 /* Copy files from the specified directory */
3090 if (root_dir) {
3091 if (!quiet)
3092 printf("%s", _("Copying files into the device: "));
3093
3094 retval = populate_fs(fs, EXT2_ROOT_INO, root_dir,
3095 EXT2_ROOT_INO);
3096 if (retval) {
3097 com_err(program_name, retval, "%s",
3098 _("\nError while populating file system\n"));
3099 exit(1);
3100 } else if (!quiet)
3101 printf("%s", _("done\n"));
3102 }
3103
3104 if (!quiet)
3105 printf("%s", _("Writing superblocks and "
3106 "filesystem accounting information: "));
3107 checkinterval = fs->super->s_checkinterval;
3108 max_mnt_count = fs->super->s_max_mnt_count;
3109 retval = ext2fs_close_free(&fs);
3110 if (retval) {
3111 fprintf(stderr, "%s",
3112 _("\nWarning, had trouble writing out superblocks."));
3113 } else if (!quiet) {
3114 printf("%s", _("done\n\n"));
3115 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3116 print_check_message(max_mnt_count, checkinterval);
3117 }
3118
3119 remove_error_table(&et_ext2_error_table);
3120 remove_error_table(&et_prof_error_table);
3121 profile_release(profile);
3122 for (i=0; fs_types[i]; i++)
3123 free(fs_types[i]);
3124 free(fs_types);
3125 return retval;
3126 }
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