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AOSP: mke2fs, libext2fs: make filesystem image reproducible
[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 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
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 #ifdef HAVE_SYS_IOCTL_H
47 #include <sys/ioctl.h>
48 #endif
49 #include <libgen.h>
50 #include <limits.h>
51 #include <blkid/blkid.h>
52
53 #include "ext2fs/ext2_fs.h"
54 #include "ext2fs/ext2fsP.h"
55 #include "uuid/uuid.h"
56 #include "util.h"
57 #include "support/nls-enable.h"
58 #include "support/plausible.h"
59 #include "support/profile.h"
60 #include "support/prof_err.h"
61 #include "../version.h"
62 #include "support/quotaio.h"
63 #include "mke2fs.h"
64 #include "create_inode.h"
65
66 #define STRIDE_LENGTH 8
67
68 #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
69
70 #ifndef __sparc__
71 #define ZAP_BOOTBLOCK
72 #endif
73
74 #define DISCARD_STEP_MB (2048)
75
76 extern int isatty(int);
77 extern FILE *fpopen(const char *cmd, const char *mode);
78
79 const char * program_name = "mke2fs";
80 static const char * device_name /* = NULL */;
81
82 /* Command line options */
83 static int cflag;
84 int verbose;
85 int quiet;
86 static int super_only;
87 static int discard = 1; /* attempt to discard device before fs creation */
88 static int direct_io;
89 static int force;
90 static int noaction;
91 static int num_backups = 2; /* number of backup bg's for sparse_super2 */
92 static uid_t root_uid;
93 static gid_t root_gid;
94 int journal_size;
95 int journal_flags;
96 static int lazy_itable_init;
97 static int packed_meta_blocks;
98 static char *bad_blocks_filename = NULL;
99 static __u32 fs_stride;
100 /* Initialize usr/grp quotas by default */
101 static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
102 static __u64 offset;
103 static blk64_t journal_location = ~0LL;
104 static int proceed_delay = -1;
105 static blk64_t dev_size;
106
107 static struct ext2_super_block fs_param;
108 static __u32 zero_buf[4];
109 static char *fs_uuid = NULL;
110 static char *creator_os;
111 static char *volume_label;
112 static char *mount_dir;
113 char *journal_device;
114 static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
115 char **fs_types;
116 const char *src_root_dir; /* Copy files from the specified directory */
117 static char *undo_file;
118
119 static int android_sparse_file; /* -E android_sparse */
120 static char *android_sparse_params;
121
122 static profile_t profile;
123
124 static int sys_page_size = 4096;
125
126 static int errors_behavior = 0;
127
128 static void usage(void)
129 {
130 fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
131 "[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
132 "[-J journal-options]\n"
133 "\t[-G flex-group-size] [-N number-of-inodes] "
134 "[-d root-directory]\n"
135 "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
136 "\t[-g blocks-per-group] [-L volume-label] "
137 "[-M last-mounted-directory]\n\t[-O feature[,...]] "
138 "[-r fs-revision] [-E extended-option[,...]]\n"
139 "\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
140 "[-z undo_file]\n"
141 "\t[-jnqvDFSV] device [blocks-count]\n"),
142 program_name);
143 exit(1);
144 }
145
146 static int int_log2(unsigned long long arg)
147 {
148 int l = 0;
149
150 arg >>= 1;
151 while (arg) {
152 l++;
153 arg >>= 1;
154 }
155 return l;
156 }
157
158 int int_log10(unsigned long long arg)
159 {
160 int l;
161
162 for (l=0; arg ; l++)
163 arg = arg / 10;
164 return l;
165 }
166
167 #ifdef __linux__
168 static int parse_version_number(const char *s)
169 {
170 int major, minor, rev;
171 char *endptr;
172 const char *cp = s;
173
174 if (!s)
175 return 0;
176 major = strtol(cp, &endptr, 10);
177 if (cp == endptr || *endptr != '.')
178 return 0;
179 cp = endptr + 1;
180 minor = strtol(cp, &endptr, 10);
181 if (cp == endptr || *endptr != '.')
182 return 0;
183 cp = endptr + 1;
184 rev = strtol(cp, &endptr, 10);
185 if (cp == endptr)
186 return 0;
187 return KERNEL_VERSION(major, minor, rev);
188 }
189
190 static int is_before_linux_ver(unsigned int major, unsigned int minor,
191 unsigned int rev)
192 {
193 struct utsname ut;
194 static int linux_version_code = -1;
195
196 if (uname(&ut)) {
197 perror("uname");
198 exit(1);
199 }
200 if (linux_version_code < 0)
201 linux_version_code = parse_version_number(ut.release);
202 if (linux_version_code == 0)
203 return 0;
204
205 return linux_version_code < (int) KERNEL_VERSION(major, minor, rev);
206 }
207 #else
208 static int is_before_linux_ver(unsigned int major, unsigned int minor,
209 unsigned int rev)
210 {
211 return 0;
212 }
213 #endif
214
215 /*
216 * Helper function for read_bb_file and test_disk
217 */
218 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
219 {
220 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
221 return;
222 }
223
224 /*
225 * Reads the bad blocks list from a file
226 */
227 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
228 const char *bad_blocks_file)
229 {
230 FILE *f;
231 errcode_t retval;
232
233 f = fopen(bad_blocks_file, "r");
234 if (!f) {
235 com_err("read_bad_blocks_file", errno,
236 _("while trying to open %s"), bad_blocks_file);
237 exit(1);
238 }
239 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
240 fclose (f);
241 if (retval) {
242 com_err("ext2fs_read_bb_FILE", retval, "%s",
243 _("while reading in list of bad blocks from file"));
244 exit(1);
245 }
246 }
247
248 /*
249 * Runs the badblocks program to test the disk
250 */
251 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
252 {
253 FILE *f;
254 errcode_t retval;
255 char buf[1024];
256
257 sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
258 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
259 fs->device_name, ext2fs_blocks_count(fs->super)-1);
260 if (verbose)
261 printf(_("Running command: %s\n"), buf);
262 f = popen(buf, "r");
263 if (!f) {
264 com_err("popen", errno,
265 _("while trying to run '%s'"), buf);
266 exit(1);
267 }
268 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
269 pclose(f);
270 if (retval) {
271 com_err("ext2fs_read_bb_FILE", retval, "%s",
272 _("while processing list of bad blocks from program"));
273 exit(1);
274 }
275 }
276
277 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
278 {
279 dgrp_t i;
280 blk_t j;
281 unsigned must_be_good;
282 blk_t blk;
283 badblocks_iterate bb_iter;
284 errcode_t retval;
285 blk_t group_block;
286 int group;
287 int group_bad;
288
289 if (!bb_list)
290 return;
291
292 /*
293 * The primary superblock and group descriptors *must* be
294 * good; if not, abort.
295 */
296 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
297 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
298 if (ext2fs_badblocks_list_test(bb_list, i)) {
299 fprintf(stderr, _("Block %d in primary "
300 "superblock/group descriptor area bad.\n"), i);
301 fprintf(stderr, _("Blocks %u through %u must be good "
302 "in order to build a filesystem.\n"),
303 fs->super->s_first_data_block, must_be_good);
304 fputs(_("Aborting....\n"), stderr);
305 exit(1);
306 }
307 }
308
309 /*
310 * See if any of the bad blocks are showing up in the backup
311 * superblocks and/or group descriptors. If so, issue a
312 * warning and adjust the block counts appropriately.
313 */
314 group_block = fs->super->s_first_data_block +
315 fs->super->s_blocks_per_group;
316
317 for (i = 1; i < fs->group_desc_count; i++) {
318 group_bad = 0;
319 for (j=0; j < fs->desc_blocks+1; j++) {
320 if (ext2fs_badblocks_list_test(bb_list,
321 group_block + j)) {
322 if (!group_bad)
323 fprintf(stderr,
324 _("Warning: the backup superblock/group descriptors at block %u contain\n"
325 " bad blocks.\n\n"),
326 group_block);
327 group_bad++;
328 group = ext2fs_group_of_blk2(fs, group_block+j);
329 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
330 ext2fs_group_desc_csum_set(fs, group);
331 ext2fs_free_blocks_count_add(fs->super, 1);
332 }
333 }
334 group_block += fs->super->s_blocks_per_group;
335 }
336
337 /*
338 * Mark all the bad blocks as used...
339 */
340 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
341 if (retval) {
342 com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
343 _("while marking bad blocks as used"));
344 exit(1);
345 }
346 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
347 ext2fs_mark_block_bitmap2(fs->block_map, EXT2FS_B2C(fs, blk));
348 ext2fs_badblocks_list_iterate_end(bb_iter);
349 }
350
351 static void write_reserved_inodes(ext2_filsys fs)
352 {
353 errcode_t retval;
354 ext2_ino_t ino;
355 struct ext2_inode *inode;
356
357 retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
358 if (retval) {
359 com_err("inode_init", retval, _("while allocating memory"));
360 exit(1);
361 }
362
363 for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++)
364 ext2fs_write_inode_full(fs, ino, inode,
365 EXT2_INODE_SIZE(fs->super));
366
367 ext2fs_free_mem(&inode);
368 }
369
370 static errcode_t packed_allocate_tables(ext2_filsys fs)
371 {
372 errcode_t retval;
373 dgrp_t i;
374 blk64_t goal = 0;
375
376 for (i = 0; i < fs->group_desc_count; i++) {
377 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
378 if (retval)
379 return retval;
380 ext2fs_block_alloc_stats2(fs, goal, +1);
381 ext2fs_block_bitmap_loc_set(fs, i, goal);
382 }
383 for (i = 0; i < fs->group_desc_count; i++) {
384 retval = ext2fs_new_block2(fs, goal, NULL, &goal);
385 if (retval)
386 return retval;
387 ext2fs_block_alloc_stats2(fs, goal, +1);
388 ext2fs_inode_bitmap_loc_set(fs, i, goal);
389 }
390 for (i = 0; i < fs->group_desc_count; i++) {
391 blk64_t end = ext2fs_blocks_count(fs->super) - 1;
392 retval = ext2fs_get_free_blocks2(fs, goal, end,
393 fs->inode_blocks_per_group,
394 fs->block_map, &goal);
395 if (retval)
396 return retval;
397 ext2fs_block_alloc_stats_range(fs, goal,
398 fs->inode_blocks_per_group, +1);
399 ext2fs_inode_table_loc_set(fs, i, goal);
400 ext2fs_group_desc_csum_set(fs, i);
401 }
402 return 0;
403 }
404
405 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
406 {
407 errcode_t retval;
408 blk64_t blk;
409 dgrp_t i;
410 int num;
411 struct ext2fs_numeric_progress_struct progress;
412
413 ext2fs_numeric_progress_init(fs, &progress,
414 _("Writing inode tables: "),
415 fs->group_desc_count);
416
417 for (i = 0; i < fs->group_desc_count; i++) {
418 ext2fs_numeric_progress_update(fs, &progress, i);
419
420 blk = ext2fs_inode_table_loc(fs, i);
421 num = fs->inode_blocks_per_group;
422
423 if (lazy_flag)
424 num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
425 ext2fs_bg_itable_unused(fs, i)) *
426 EXT2_INODE_SIZE(fs->super),
427 EXT2_BLOCK_SIZE(fs->super));
428 if (!lazy_flag || itable_zeroed) {
429 /* The kernel doesn't need to zero the itable blocks */
430 ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
431 ext2fs_group_desc_csum_set(fs, i);
432 }
433 if (!itable_zeroed) {
434 retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
435 if (retval) {
436 fprintf(stderr, _("\nCould not write %d "
437 "blocks in inode table starting at %llu: %s\n"),
438 num, blk, error_message(retval));
439 exit(1);
440 }
441 }
442 if (sync_kludge) {
443 if (sync_kludge == 1)
444 sync();
445 else if ((i % sync_kludge) == 0)
446 sync();
447 }
448 }
449 ext2fs_numeric_progress_close(fs, &progress,
450 _("done \n"));
451
452 /* Reserved inodes must always have correct checksums */
453 if (ext2fs_has_feature_metadata_csum(fs->super))
454 write_reserved_inodes(fs);
455 }
456
457 static void create_root_dir(ext2_filsys fs)
458 {
459 errcode_t retval;
460 struct ext2_inode inode;
461
462 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
463 if (retval) {
464 com_err("ext2fs_mkdir", retval, "%s",
465 _("while creating root dir"));
466 exit(1);
467 }
468 if (root_uid != 0 || root_gid != 0) {
469 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
470 if (retval) {
471 com_err("ext2fs_read_inode", retval, "%s",
472 _("while reading root inode"));
473 exit(1);
474 }
475
476 inode.i_uid = root_uid;
477 ext2fs_set_i_uid_high(inode, root_uid >> 16);
478 inode.i_gid = root_gid;
479 ext2fs_set_i_gid_high(inode, root_gid >> 16);
480
481 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
482 if (retval) {
483 com_err("ext2fs_write_inode", retval, "%s",
484 _("while setting root inode ownership"));
485 exit(1);
486 }
487 }
488 }
489
490 static void create_lost_and_found(ext2_filsys fs)
491 {
492 unsigned int lpf_size = 0;
493 errcode_t retval;
494 ext2_ino_t ino;
495 const char *name = "lost+found";
496 int i;
497
498 fs->umask = 077;
499 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
500 if (retval) {
501 com_err("ext2fs_mkdir", retval, "%s",
502 _("while creating /lost+found"));
503 exit(1);
504 }
505
506 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
507 if (retval) {
508 com_err("ext2_lookup", retval, "%s",
509 _("while looking up /lost+found"));
510 exit(1);
511 }
512
513 for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
514 /* Ensure that lost+found is at least 2 blocks, so we always
515 * test large empty blocks for big-block filesystems. */
516 if ((lpf_size += fs->blocksize) >= 16*1024 &&
517 lpf_size >= 2 * fs->blocksize)
518 break;
519 retval = ext2fs_expand_dir(fs, ino);
520 if (retval) {
521 com_err("ext2fs_expand_dir", retval, "%s",
522 _("while expanding /lost+found"));
523 exit(1);
524 }
525 }
526 }
527
528 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
529 {
530 errcode_t retval;
531
532 ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
533 ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
534 retval = ext2fs_update_bb_inode(fs, bb_list);
535 if (retval) {
536 com_err("ext2fs_update_bb_inode", retval, "%s",
537 _("while setting bad block inode"));
538 exit(1);
539 }
540
541 }
542
543 static void reserve_inodes(ext2_filsys fs)
544 {
545 ext2_ino_t i;
546
547 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
548 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
549 ext2fs_mark_ib_dirty(fs);
550 }
551
552 #define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */
553 #define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */
554 #define BSD_LABEL_OFFSET 64
555
556 static void zap_sector(ext2_filsys fs, int sect, int nsect)
557 {
558 char *buf;
559 int retval;
560 unsigned int *magic;
561
562 buf = calloc(512, nsect);
563 if (!buf) {
564 printf(_("Out of memory erasing sectors %d-%d\n"),
565 sect, sect + nsect - 1);
566 exit(1);
567 }
568
569 if (sect == 0) {
570 /* Check for a BSD disklabel, and don't erase it if so */
571 retval = io_channel_read_blk64(fs->io, 0, -512, buf);
572 if (retval)
573 fprintf(stderr,
574 _("Warning: could not read block 0: %s\n"),
575 error_message(retval));
576 else {
577 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
578 if ((*magic == BSD_DISKMAGIC) ||
579 (*magic == BSD_MAGICDISK))
580 return;
581 }
582 }
583
584 memset(buf, 0, 512*nsect);
585 io_channel_set_blksize(fs->io, 512);
586 retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
587 io_channel_set_blksize(fs->io, fs->blocksize);
588 free(buf);
589 if (retval)
590 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
591 sect, error_message(retval));
592 }
593
594 static void create_journal_dev(ext2_filsys fs)
595 {
596 struct ext2fs_numeric_progress_struct progress;
597 errcode_t retval;
598 char *buf;
599 blk64_t blk, err_blk;
600 int c, count, err_count;
601
602 retval = ext2fs_create_journal_superblock(fs,
603 ext2fs_blocks_count(fs->super), 0, &buf);
604 if (retval) {
605 com_err("create_journal_dev", retval, "%s",
606 _("while initializing journal superblock"));
607 exit(1);
608 }
609
610 if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
611 goto write_superblock;
612
613 ext2fs_numeric_progress_init(fs, &progress,
614 _("Zeroing journal device: "),
615 ext2fs_blocks_count(fs->super));
616 blk = 0;
617 count = ext2fs_blocks_count(fs->super);
618 while (count > 0) {
619 if (count > 1024)
620 c = 1024;
621 else
622 c = count;
623 retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
624 if (retval) {
625 com_err("create_journal_dev", retval,
626 _("while zeroing journal device "
627 "(block %llu, count %d)"),
628 err_blk, err_count);
629 exit(1);
630 }
631 blk += c;
632 count -= c;
633 ext2fs_numeric_progress_update(fs, &progress, blk);
634 }
635
636 ext2fs_numeric_progress_close(fs, &progress, NULL);
637 write_superblock:
638 retval = io_channel_write_blk64(fs->io,
639 fs->super->s_first_data_block+1,
640 1, buf);
641 (void) ext2fs_free_mem(&buf);
642 if (retval) {
643 com_err("create_journal_dev", retval, "%s",
644 _("while writing journal superblock"));
645 exit(1);
646 }
647 }
648
649 static void show_stats(ext2_filsys fs)
650 {
651 struct ext2_super_block *s = fs->super;
652 char buf[80];
653 char *os;
654 blk64_t group_block;
655 dgrp_t i;
656 int need, col_left;
657
658 if (!verbose) {
659 printf(_("Creating filesystem with %llu %dk blocks and "
660 "%u inodes\n"),
661 ext2fs_blocks_count(s), fs->blocksize >> 10,
662 s->s_inodes_count);
663 goto skip_details;
664 }
665
666 if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
667 fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
668 ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
669
670 memset(buf, 0, sizeof(buf));
671 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
672 printf(_("Filesystem label=%s\n"), buf);
673 os = e2p_os2string(fs->super->s_creator_os);
674 if (os)
675 printf(_("OS type: %s\n"), os);
676 free(os);
677 printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
678 s->s_log_block_size);
679 if (ext2fs_has_feature_bigalloc(fs->super))
680 printf(_("Cluster size=%u (log=%u)\n"),
681 fs->blocksize << fs->cluster_ratio_bits,
682 s->s_log_cluster_size);
683 else
684 printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
685 s->s_log_cluster_size);
686 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
687 s->s_raid_stride, s->s_raid_stripe_width);
688 printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
689 ext2fs_blocks_count(s));
690 printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
691 ext2fs_r_blocks_count(s),
692 100.0 * ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
693 printf(_("First data block=%u\n"), s->s_first_data_block);
694 if (root_uid != 0 || root_gid != 0)
695 printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
696 if (s->s_reserved_gdt_blocks)
697 printf(_("Maximum filesystem blocks=%lu\n"),
698 (s->s_reserved_gdt_blocks + fs->desc_blocks) *
699 EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
700 if (fs->group_desc_count > 1)
701 printf(_("%u block groups\n"), fs->group_desc_count);
702 else
703 printf(_("%u block group\n"), fs->group_desc_count);
704 if (ext2fs_has_feature_bigalloc(fs->super))
705 printf(_("%u blocks per group, %u clusters per group\n"),
706 s->s_blocks_per_group, s->s_clusters_per_group);
707 else
708 printf(_("%u blocks per group, %u fragments per group\n"),
709 s->s_blocks_per_group, s->s_clusters_per_group);
710 printf(_("%u inodes per group\n"), s->s_inodes_per_group);
711
712 skip_details:
713 if (fs->group_desc_count == 1) {
714 printf("\n");
715 return;
716 }
717
718 if (!e2p_is_null_uuid(s->s_uuid))
719 printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
720 printf("%s", _("Superblock backups stored on blocks: "));
721 group_block = s->s_first_data_block;
722 col_left = 0;
723 for (i = 1; i < fs->group_desc_count; i++) {
724 group_block += s->s_blocks_per_group;
725 if (!ext2fs_bg_has_super(fs, i))
726 continue;
727 if (i != 1)
728 printf(", ");
729 need = int_log10(group_block) + 2;
730 if (need > col_left) {
731 printf("\n\t");
732 col_left = 72;
733 }
734 col_left -= need;
735 printf("%llu", group_block);
736 }
737 printf("\n\n");
738 }
739
740 /*
741 * Returns true if making a file system for the Hurd, else 0
742 */
743 static int for_hurd(const char *os)
744 {
745 if (!os) {
746 #ifdef __GNU__
747 return 1;
748 #else
749 return 0;
750 #endif
751 }
752 if (isdigit(*os))
753 return (atoi(os) == EXT2_OS_HURD);
754 return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
755 }
756
757 /*
758 * Set the S_CREATOR_OS field. Return true if OS is known,
759 * otherwise, 0.
760 */
761 static int set_os(struct ext2_super_block *sb, char *os)
762 {
763 if (isdigit (*os))
764 sb->s_creator_os = atoi (os);
765 else if (strcasecmp(os, "linux") == 0)
766 sb->s_creator_os = EXT2_OS_LINUX;
767 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
768 sb->s_creator_os = EXT2_OS_HURD;
769 else if (strcasecmp(os, "freebsd") == 0)
770 sb->s_creator_os = EXT2_OS_FREEBSD;
771 else if (strcasecmp(os, "lites") == 0)
772 sb->s_creator_os = EXT2_OS_LITES;
773 else
774 return 0;
775 return 1;
776 }
777
778 #define PATH_SET "PATH=/sbin"
779
780 static void parse_extended_opts(struct ext2_super_block *param,
781 const char *opts)
782 {
783 char *buf, *token, *next, *p, *arg, *badopt = 0;
784 int len;
785 int r_usage = 0;
786 int ret;
787
788 len = strlen(opts);
789 buf = malloc(len+1);
790 if (!buf) {
791 fprintf(stderr, "%s",
792 _("Couldn't allocate memory to parse options!\n"));
793 exit(1);
794 }
795 strcpy(buf, opts);
796 for (token = buf; token && *token; token = next) {
797 p = strchr(token, ',');
798 next = 0;
799 if (p) {
800 *p = 0;
801 next = p+1;
802 }
803 arg = strchr(token, '=');
804 if (arg) {
805 *arg = 0;
806 arg++;
807 }
808 if (strcmp(token, "desc-size") == 0 ||
809 strcmp(token, "desc_size") == 0) {
810 int desc_size;
811
812 if (!ext2fs_has_feature_64bit(&fs_param)) {
813 fprintf(stderr,
814 _("%s requires '-O 64bit'\n"), token);
815 r_usage++;
816 continue;
817 }
818 if (param->s_reserved_gdt_blocks != 0) {
819 fprintf(stderr,
820 _("'%s' must be before 'resize=%u'\n"),
821 token, param->s_reserved_gdt_blocks);
822 r_usage++;
823 continue;
824 }
825 if (!arg) {
826 r_usage++;
827 badopt = token;
828 continue;
829 }
830 desc_size = strtoul(arg, &p, 0);
831 if (*p || (desc_size & (desc_size - 1))) {
832 fprintf(stderr,
833 _("Invalid desc_size: '%s'\n"), arg);
834 r_usage++;
835 continue;
836 }
837 param->s_desc_size = desc_size;
838 } else if (strcmp(token, "hash_seed") == 0) {
839 if (!arg) {
840 r_usage++;
841 badopt = token;
842 continue;
843 }
844 if (uuid_parse(arg,
845 (unsigned char *)param->s_hash_seed) != 0) {
846 fprintf(stderr,
847 _("Invalid hash seed: %s\n"), arg);
848 r_usage++;
849 continue;
850 }
851 } else if (strcmp(token, "offset") == 0) {
852 if (!arg) {
853 r_usage++;
854 badopt = token;
855 continue;
856 }
857 offset = strtoull(arg, &p, 0);
858 if (*p) {
859 fprintf(stderr, _("Invalid offset: %s\n"),
860 arg);
861 r_usage++;
862 continue;
863 }
864 } else if (strcmp(token, "mmp_update_interval") == 0) {
865 if (!arg) {
866 r_usage++;
867 badopt = token;
868 continue;
869 }
870 param->s_mmp_update_interval = strtoul(arg, &p, 0);
871 if (*p) {
872 fprintf(stderr,
873 _("Invalid mmp_update_interval: %s\n"),
874 arg);
875 r_usage++;
876 continue;
877 }
878 } else if (strcmp(token, "num_backup_sb") == 0) {
879 if (!arg) {
880 r_usage++;
881 badopt = token;
882 continue;
883 }
884 num_backups = strtoul(arg, &p, 0);
885 if (*p || num_backups > 2) {
886 fprintf(stderr,
887 _("Invalid # of backup "
888 "superblocks: %s\n"),
889 arg);
890 r_usage++;
891 continue;
892 }
893 } else if (strcmp(token, "packed_meta_blocks") == 0) {
894 if (arg)
895 packed_meta_blocks = strtoul(arg, &p, 0);
896 else
897 packed_meta_blocks = 1;
898 if (packed_meta_blocks)
899 journal_location = 0;
900 } else if (strcmp(token, "stride") == 0) {
901 if (!arg) {
902 r_usage++;
903 badopt = token;
904 continue;
905 }
906 param->s_raid_stride = strtoul(arg, &p, 0);
907 if (*p) {
908 fprintf(stderr,
909 _("Invalid stride parameter: %s\n"),
910 arg);
911 r_usage++;
912 continue;
913 }
914 } else if (strcmp(token, "stripe-width") == 0 ||
915 strcmp(token, "stripe_width") == 0) {
916 if (!arg) {
917 r_usage++;
918 badopt = token;
919 continue;
920 }
921 param->s_raid_stripe_width = strtoul(arg, &p, 0);
922 if (*p) {
923 fprintf(stderr,
924 _("Invalid stripe-width parameter: %s\n"),
925 arg);
926 r_usage++;
927 continue;
928 }
929 } else if (!strcmp(token, "resize")) {
930 blk64_t resize;
931 unsigned long bpg, rsv_groups;
932 unsigned long group_desc_count, desc_blocks;
933 unsigned int gdpb, blocksize;
934 int rsv_gdb;
935
936 if (!arg) {
937 r_usage++;
938 badopt = token;
939 continue;
940 }
941
942 resize = parse_num_blocks2(arg,
943 param->s_log_block_size);
944
945 if (resize == 0) {
946 fprintf(stderr,
947 _("Invalid resize parameter: %s\n"),
948 arg);
949 r_usage++;
950 continue;
951 }
952 if (resize <= ext2fs_blocks_count(param)) {
953 fprintf(stderr, "%s",
954 _("The resize maximum must be greater "
955 "than the filesystem size.\n"));
956 r_usage++;
957 continue;
958 }
959
960 blocksize = EXT2_BLOCK_SIZE(param);
961 bpg = param->s_blocks_per_group;
962 if (!bpg)
963 bpg = blocksize * 8;
964 gdpb = EXT2_DESC_PER_BLOCK(param);
965 group_desc_count = (__u32) ext2fs_div64_ceil(
966 ext2fs_blocks_count(param), bpg);
967 desc_blocks = (group_desc_count +
968 gdpb - 1) / gdpb;
969 rsv_groups = ext2fs_div64_ceil(resize, bpg);
970 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
971 desc_blocks;
972 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
973 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
974
975 if (rsv_gdb > 0) {
976 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
977 fprintf(stderr, "%s",
978 _("On-line resizing not supported with revision 0 filesystems\n"));
979 free(buf);
980 exit(1);
981 }
982 ext2fs_set_feature_resize_inode(param);
983
984 param->s_reserved_gdt_blocks = rsv_gdb;
985 }
986 } else if (!strcmp(token, "test_fs")) {
987 param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
988 } else if (!strcmp(token, "lazy_itable_init")) {
989 if (arg)
990 lazy_itable_init = strtoul(arg, &p, 0);
991 else
992 lazy_itable_init = 1;
993 } else if (!strcmp(token, "lazy_journal_init")) {
994 if (arg)
995 journal_flags |= strtoul(arg, &p, 0) ?
996 EXT2_MKJOURNAL_LAZYINIT : 0;
997 else
998 journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
999 } else if (!strcmp(token, "root_owner")) {
1000 if (arg) {
1001 root_uid = strtoul(arg, &p, 0);
1002 if (*p != ':') {
1003 fprintf(stderr,
1004 _("Invalid root_owner: '%s'\n"),
1005 arg);
1006 r_usage++;
1007 continue;
1008 }
1009 p++;
1010 root_gid = strtoul(p, &p, 0);
1011 if (*p) {
1012 fprintf(stderr,
1013 _("Invalid root_owner: '%s'\n"),
1014 arg);
1015 r_usage++;
1016 continue;
1017 }
1018 } else {
1019 root_uid = getuid();
1020 root_gid = getgid();
1021 }
1022 } else if (!strcmp(token, "discard")) {
1023 discard = 1;
1024 } else if (!strcmp(token, "nodiscard")) {
1025 discard = 0;
1026 } else if (!strcmp(token, "quotatype")) {
1027 char *errtok = NULL;
1028
1029 if (!arg) {
1030 r_usage++;
1031 badopt = token;
1032 continue;
1033 }
1034 quotatype_bits = 0;
1035 ret = parse_quota_types(arg, &quotatype_bits, &errtok);
1036 if (ret) {
1037 if (errtok) {
1038 fprintf(stderr,
1039 "Failed to parse quota type at %s", errtok);
1040 free(errtok);
1041 } else
1042 com_err(program_name, ret,
1043 "while parsing quota type");
1044 r_usage++;
1045 badopt = token;
1046 continue;
1047 }
1048 } else if (!strcmp(token, "android_sparse")) {
1049 android_sparse_file = 1;
1050 } else {
1051 r_usage++;
1052 badopt = token;
1053 }
1054 }
1055 if (r_usage) {
1056 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
1057 "Extended options are separated by commas, "
1058 "and may take an argument which\n"
1059 "\tis set off by an equals ('=') sign.\n\n"
1060 "Valid extended options are:\n"
1061 "\tmmp_update_interval=<interval>\n"
1062 "\tnum_backup_sb=<0|1|2>\n"
1063 "\tstride=<RAID per-disk data chunk in blocks>\n"
1064 "\tstripe-width=<RAID stride * data disks in blocks>\n"
1065 "\toffset=<offset to create the file system>\n"
1066 "\tresize=<resize maximum size in blocks>\n"
1067 "\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
1068 "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
1069 "\tlazy_journal_init=<0 to disable, 1 to enable>\n"
1070 "\troot_owner=<uid of root dir>:<gid of root dir>\n"
1071 "\ttest_fs\n"
1072 "\tdiscard\n"
1073 "\tnodiscard\n"
1074 "\tquotatype=<quota type(s) to be enabled>\n\n"),
1075 badopt ? badopt : "");
1076 free(buf);
1077 exit(1);
1078 }
1079 if (param->s_raid_stride &&
1080 (param->s_raid_stripe_width % param->s_raid_stride) != 0)
1081 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
1082 "multiple of stride %u.\n\n"),
1083 param->s_raid_stripe_width, param->s_raid_stride);
1084
1085 free(buf);
1086 }
1087
1088 static __u32 ok_features[3] = {
1089 /* Compat */
1090 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
1091 EXT2_FEATURE_COMPAT_RESIZE_INODE |
1092 EXT2_FEATURE_COMPAT_DIR_INDEX |
1093 EXT2_FEATURE_COMPAT_EXT_ATTR |
1094 EXT4_FEATURE_COMPAT_SPARSE_SUPER2,
1095 /* Incompat */
1096 EXT2_FEATURE_INCOMPAT_FILETYPE|
1097 EXT3_FEATURE_INCOMPAT_EXTENTS|
1098 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
1099 EXT2_FEATURE_INCOMPAT_META_BG|
1100 EXT4_FEATURE_INCOMPAT_FLEX_BG|
1101 EXT4_FEATURE_INCOMPAT_EA_INODE|
1102 EXT4_FEATURE_INCOMPAT_MMP |
1103 EXT4_FEATURE_INCOMPAT_64BIT|
1104 EXT4_FEATURE_INCOMPAT_INLINE_DATA|
1105 EXT4_FEATURE_INCOMPAT_ENCRYPT |
1106 EXT4_FEATURE_INCOMPAT_CSUM_SEED |
1107 EXT4_FEATURE_INCOMPAT_LARGEDIR,
1108 /* R/O compat */
1109 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
1110 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
1111 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
1112 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
1113 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
1114 EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
1115 EXT4_FEATURE_RO_COMPAT_BIGALLOC|
1116 EXT4_FEATURE_RO_COMPAT_QUOTA|
1117 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
1118 EXT4_FEATURE_RO_COMPAT_PROJECT
1119 };
1120
1121
1122 static void syntax_err_report(const char *filename, long err, int line_num)
1123 {
1124 fprintf(stderr,
1125 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
1126 filename, line_num, error_message(err));
1127 exit(1);
1128 }
1129
1130 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
1131
1132 static void edit_feature(const char *str, __u32 *compat_array)
1133 {
1134 if (!str)
1135 return;
1136
1137 if (e2p_edit_feature(str, compat_array, ok_features)) {
1138 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
1139 str);
1140 exit(1);
1141 }
1142 }
1143
1144 static void edit_mntopts(const char *str, __u32 *mntopts)
1145 {
1146 if (!str)
1147 return;
1148
1149 if (e2p_edit_mntopts(str, mntopts, ~0)) {
1150 fprintf(stderr, _("Invalid mount option set: %s\n"),
1151 str);
1152 exit(1);
1153 }
1154 }
1155
1156 struct str_list {
1157 char **list;
1158 int num;
1159 int max;
1160 };
1161
1162 static errcode_t init_list(struct str_list *sl)
1163 {
1164 sl->num = 0;
1165 sl->max = 1;
1166 sl->list = malloc((sl->max+1) * sizeof(char *));
1167 if (!sl->list)
1168 return ENOMEM;
1169 sl->list[0] = 0;
1170 return 0;
1171 }
1172
1173 static errcode_t push_string(struct str_list *sl, const char *str)
1174 {
1175 char **new_list;
1176
1177 if (sl->num >= sl->max) {
1178 sl->max += 2;
1179 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
1180 if (!new_list)
1181 return ENOMEM;
1182 sl->list = new_list;
1183 }
1184 sl->list[sl->num] = malloc(strlen(str)+1);
1185 if (sl->list[sl->num] == 0)
1186 return ENOMEM;
1187 strcpy(sl->list[sl->num], str);
1188 sl->num++;
1189 sl->list[sl->num] = 0;
1190 return 0;
1191 }
1192
1193 static void print_str_list(char **list)
1194 {
1195 char **cpp;
1196
1197 for (cpp = list; *cpp; cpp++) {
1198 printf("'%s'", *cpp);
1199 if (cpp[1])
1200 fputs(", ", stdout);
1201 }
1202 fputc('\n', stdout);
1203 }
1204
1205 /*
1206 * Return TRUE if the profile has the given subsection
1207 */
1208 static int profile_has_subsection(profile_t prof, const char *section,
1209 const char *subsection)
1210 {
1211 void *state;
1212 const char *names[4];
1213 char *name;
1214 int ret = 0;
1215
1216 names[0] = section;
1217 names[1] = subsection;
1218 names[2] = 0;
1219
1220 if (profile_iterator_create(prof, names,
1221 PROFILE_ITER_LIST_SECTION |
1222 PROFILE_ITER_RELATIONS_ONLY, &state))
1223 return 0;
1224
1225 if ((profile_iterator(&state, &name, 0) == 0) && name) {
1226 free(name);
1227 ret = 1;
1228 }
1229
1230 profile_iterator_free(&state);
1231 return ret;
1232 }
1233
1234 static char **parse_fs_type(const char *fs_type,
1235 const char *usage_types,
1236 struct ext2_super_block *sb,
1237 blk64_t fs_blocks_count,
1238 char *progname)
1239 {
1240 const char *ext_type = 0;
1241 char *parse_str;
1242 char *profile_type = 0;
1243 char *cp, *t;
1244 const char *size_type;
1245 struct str_list list;
1246 unsigned long long meg;
1247 int is_hurd = for_hurd(creator_os);
1248
1249 if (init_list(&list))
1250 return 0;
1251
1252 if (fs_type)
1253 ext_type = fs_type;
1254 else if (is_hurd)
1255 ext_type = "ext2";
1256 else if (!strcmp(program_name, "mke3fs"))
1257 ext_type = "ext3";
1258 else if (!strcmp(program_name, "mke4fs"))
1259 ext_type = "ext4";
1260 else if (progname) {
1261 ext_type = strrchr(progname, '/');
1262 if (ext_type)
1263 ext_type++;
1264 else
1265 ext_type = progname;
1266
1267 if (!strncmp(ext_type, "mkfs.", 5)) {
1268 ext_type += 5;
1269 if (ext_type[0] == 0)
1270 ext_type = 0;
1271 } else
1272 ext_type = 0;
1273 }
1274
1275 if (!ext_type) {
1276 profile_get_string(profile, "defaults", "fs_type", 0,
1277 "ext2", &profile_type);
1278 ext_type = profile_type;
1279 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1280 ext_type = "ext3";
1281 }
1282
1283
1284 if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1285 strcmp(ext_type, "ext2")) {
1286 printf(_("\nYour mke2fs.conf file does not define the "
1287 "%s filesystem type.\n"), ext_type);
1288 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1289 !strcmp(ext_type, "ext4dev")) {
1290 printf("%s", _("You probably need to install an "
1291 "updated mke2fs.conf file.\n\n"));
1292 }
1293 if (!force) {
1294 printf("%s", _("Aborting...\n"));
1295 exit(1);
1296 }
1297 }
1298
1299 meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
1300 if (fs_blocks_count < 3 * meg)
1301 size_type = "floppy";
1302 else if (fs_blocks_count < 512 * meg)
1303 size_type = "small";
1304 else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
1305 size_type = "default";
1306 else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
1307 size_type = "big";
1308 else
1309 size_type = "huge";
1310
1311 if (!usage_types)
1312 usage_types = size_type;
1313
1314 parse_str = malloc(strlen(usage_types)+1);
1315 if (!parse_str) {
1316 free(profile_type);
1317 free(list.list);
1318 return 0;
1319 }
1320 strcpy(parse_str, usage_types);
1321
1322 if (ext_type)
1323 push_string(&list, ext_type);
1324 cp = parse_str;
1325 while (1) {
1326 t = strchr(cp, ',');
1327 if (t)
1328 *t = '\0';
1329
1330 if (*cp) {
1331 if (profile_has_subsection(profile, "fs_types", cp))
1332 push_string(&list, cp);
1333 else if (strcmp(cp, "default") != 0)
1334 fprintf(stderr,
1335 _("\nWarning: the fs_type %s is not "
1336 "defined in mke2fs.conf\n\n"),
1337 cp);
1338 }
1339 if (t)
1340 cp = t+1;
1341 else
1342 break;
1343 }
1344 free(parse_str);
1345 free(profile_type);
1346 if (is_hurd)
1347 push_string(&list, "hurd");
1348 return (list.list);
1349 }
1350
1351 char *get_string_from_profile(char **types, const char *opt,
1352 const char *def_val)
1353 {
1354 char *ret = 0;
1355 int i;
1356
1357 for (i=0; types[i]; i++);
1358 for (i-=1; i >=0 ; i--) {
1359 profile_get_string(profile, "fs_types", types[i],
1360 opt, 0, &ret);
1361 if (ret)
1362 return ret;
1363 }
1364 profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1365 return (ret);
1366 }
1367
1368 int get_int_from_profile(char **types, const char *opt, int def_val)
1369 {
1370 int ret;
1371 char **cpp;
1372
1373 profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1374 for (cpp = types; *cpp; cpp++)
1375 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1376 return ret;
1377 }
1378
1379 static unsigned int get_uint_from_profile(char **types, const char *opt,
1380 unsigned int def_val)
1381 {
1382 unsigned int ret;
1383 char **cpp;
1384
1385 profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
1386 for (cpp = types; *cpp; cpp++)
1387 profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
1388 return ret;
1389 }
1390
1391 static double get_double_from_profile(char **types, const char *opt,
1392 double def_val)
1393 {
1394 double ret;
1395 char **cpp;
1396
1397 profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
1398 for (cpp = types; *cpp; cpp++)
1399 profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
1400 return ret;
1401 }
1402
1403 int get_bool_from_profile(char **types, const char *opt, int def_val)
1404 {
1405 int ret;
1406 char **cpp;
1407
1408 profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1409 for (cpp = types; *cpp; cpp++)
1410 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1411 return ret;
1412 }
1413
1414 extern const char *mke2fs_default_profile;
1415 static const char *default_files[] = { "<default>", 0 };
1416
1417 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1418 /*
1419 * Sets the geometry of a device (stripe/stride), and returns the
1420 * device's alignment offset, if any, or a negative error.
1421 */
1422 static int get_device_geometry(const char *file,
1423 struct ext2_super_block *param,
1424 unsigned int psector_size)
1425 {
1426 int rc = -1;
1427 unsigned int blocksize;
1428 blkid_probe pr;
1429 blkid_topology tp;
1430 unsigned long min_io;
1431 unsigned long opt_io;
1432 struct stat statbuf;
1433
1434 /* Nothing to do for a regular file */
1435 if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1436 return 0;
1437
1438 pr = blkid_new_probe_from_filename(file);
1439 if (!pr)
1440 goto out;
1441
1442 tp = blkid_probe_get_topology(pr);
1443 if (!tp)
1444 goto out;
1445
1446 min_io = blkid_topology_get_minimum_io_size(tp);
1447 opt_io = blkid_topology_get_optimal_io_size(tp);
1448 blocksize = EXT2_BLOCK_SIZE(param);
1449 if ((min_io == 0) && (psector_size > blocksize))
1450 min_io = psector_size;
1451 if ((opt_io == 0) && min_io)
1452 opt_io = min_io;
1453 if ((opt_io == 0) && (psector_size > blocksize))
1454 opt_io = psector_size;
1455
1456 /* setting stripe/stride to blocksize is pointless */
1457 if (min_io > blocksize)
1458 param->s_raid_stride = min_io / blocksize;
1459 if (opt_io > blocksize)
1460 param->s_raid_stripe_width = opt_io / blocksize;
1461
1462 rc = blkid_topology_get_alignment_offset(tp);
1463 out:
1464 blkid_free_probe(pr);
1465 return rc;
1466 }
1467 #endif
1468
1469 static void PRS(int argc, char *argv[])
1470 {
1471 int b, c, flags;
1472 int cluster_size = 0;
1473 char *tmp, **cpp;
1474 int explicit_fssize = 0;
1475 int blocksize = 0;
1476 int inode_ratio = 0;
1477 int inode_size = 0;
1478 unsigned long flex_bg_size = 0;
1479 double reserved_ratio = -1.0;
1480 int lsector_size = 0, psector_size = 0;
1481 int show_version_only = 0, is_device = 0;
1482 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1483 errcode_t retval;
1484 char * oldpath = getenv("PATH");
1485 char * extended_opts = 0;
1486 char * fs_type = 0;
1487 char * usage_types = 0;
1488 /*
1489 * NOTE: A few words about fs_blocks_count and blocksize:
1490 *
1491 * Initially, blocksize is set to zero, which implies 1024.
1492 * If -b is specified, blocksize is updated to the user's value.
1493 *
1494 * Next, the device size or the user's "blocks" command line argument
1495 * is used to set fs_blocks_count; the units are blocksize.
1496 *
1497 * Later, if blocksize hasn't been set and the profile specifies a
1498 * blocksize, then blocksize is updated and fs_blocks_count is scaled
1499 * appropriately. Note the change in units!
1500 *
1501 * Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
1502 */
1503 blk64_t fs_blocks_count = 0;
1504 long sysval;
1505 int s_opt = -1, r_opt = -1;
1506 char *fs_features = 0;
1507 int fs_features_size = 0;
1508 int use_bsize;
1509 char *newpath;
1510 int pathlen = sizeof(PATH_SET) + 1;
1511
1512 if (oldpath)
1513 pathlen += strlen(oldpath);
1514 newpath = malloc(pathlen);
1515 if (!newpath) {
1516 fprintf(stderr, "%s",
1517 _("Couldn't allocate memory for new PATH.\n"));
1518 exit(1);
1519 }
1520 strcpy(newpath, PATH_SET);
1521
1522 /* Update our PATH to include /sbin */
1523 if (oldpath) {
1524 strcat (newpath, ":");
1525 strcat (newpath, oldpath);
1526 }
1527 putenv (newpath);
1528
1529 tmp = getenv("MKE2FS_SYNC");
1530 if (tmp)
1531 sync_kludge = atoi(tmp);
1532
1533 /* Determine the system page size if possible */
1534 #ifdef HAVE_SYSCONF
1535 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1536 #define _SC_PAGESIZE _SC_PAGE_SIZE
1537 #endif
1538 #ifdef _SC_PAGESIZE
1539 sysval = sysconf(_SC_PAGESIZE);
1540 if (sysval > 0)
1541 sys_page_size = sysval;
1542 #endif /* _SC_PAGESIZE */
1543 #endif /* HAVE_SYSCONF */
1544
1545 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1546 config_fn[0] = tmp;
1547 profile_set_syntax_err_cb(syntax_err_report);
1548 retval = profile_init(config_fn, &profile);
1549 if (retval == ENOENT) {
1550 retval = profile_init(default_files, &profile);
1551 if (retval)
1552 goto profile_error;
1553 retval = profile_set_default(profile, mke2fs_default_profile);
1554 if (retval)
1555 goto profile_error;
1556 } else if (retval) {
1557 profile_error:
1558 fprintf(stderr, _("Couldn't init profile successfully"
1559 " (error: %ld).\n"), retval);
1560 exit(1);
1561 }
1562
1563 setbuf(stdout, NULL);
1564 setbuf(stderr, NULL);
1565 add_error_table(&et_ext2_error_table);
1566 add_error_table(&et_prof_error_table);
1567 memset(&fs_param, 0, sizeof(struct ext2_super_block));
1568 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */
1569
1570 if (is_before_linux_ver(2, 2, 0))
1571 fs_param.s_rev_level = 0;
1572
1573 if (argc && *argv) {
1574 program_name = get_progname(*argv);
1575
1576 /* If called as mkfs.ext3, create a journal inode */
1577 if (!strcmp(program_name, "mkfs.ext3") ||
1578 !strcmp(program_name, "mke3fs"))
1579 journal_size = -1;
1580 }
1581
1582 while ((c = getopt (argc, argv,
1583 "b:cd:e:g:i:jl:m:no:qr:s:t:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:Vz:")) != EOF) {
1584 switch (c) {
1585 case 'b':
1586 blocksize = parse_num_blocks2(optarg, -1);
1587 b = (blocksize > 0) ? blocksize : -blocksize;
1588 if (b < EXT2_MIN_BLOCK_SIZE ||
1589 b > EXT2_MAX_BLOCK_SIZE) {
1590 com_err(program_name, 0,
1591 _("invalid block size - %s"), optarg);
1592 exit(1);
1593 }
1594 if (blocksize > 4096)
1595 fprintf(stderr, _("Warning: blocksize %d not "
1596 "usable on most systems.\n"),
1597 blocksize);
1598 if (blocksize > 0)
1599 fs_param.s_log_block_size =
1600 int_log2(blocksize >>
1601 EXT2_MIN_BLOCK_LOG_SIZE);
1602 break;
1603 case 'c': /* Check for bad blocks */
1604 cflag++;
1605 break;
1606 case 'C':
1607 cluster_size = parse_num_blocks2(optarg, -1);
1608 if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
1609 cluster_size > EXT2_MAX_CLUSTER_SIZE) {
1610 com_err(program_name, 0,
1611 _("invalid cluster size - %s"),
1612 optarg);
1613 exit(1);
1614 }
1615 break;
1616 case 'd':
1617 src_root_dir = optarg;
1618 break;
1619 case 'D':
1620 direct_io = 1;
1621 break;
1622 case 'R':
1623 com_err(program_name, 0, "%s",
1624 _("'-R' is deprecated, use '-E' instead"));
1625 /* fallthrough */
1626 case 'E':
1627 extended_opts = optarg;
1628 break;
1629 case 'e':
1630 if (strcmp(optarg, "continue") == 0)
1631 errors_behavior = EXT2_ERRORS_CONTINUE;
1632 else if (strcmp(optarg, "remount-ro") == 0)
1633 errors_behavior = EXT2_ERRORS_RO;
1634 else if (strcmp(optarg, "panic") == 0)
1635 errors_behavior = EXT2_ERRORS_PANIC;
1636 else {
1637 com_err(program_name, 0,
1638 _("bad error behavior - %s"),
1639 optarg);
1640 usage();
1641 }
1642 break;
1643 case 'F':
1644 force++;
1645 break;
1646 case 'g':
1647 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1648 if (*tmp) {
1649 com_err(program_name, 0, "%s",
1650 _("Illegal number for blocks per group"));
1651 exit(1);
1652 }
1653 if ((fs_param.s_blocks_per_group % 8) != 0) {
1654 com_err(program_name, 0, "%s",
1655 _("blocks per group must be multiple of 8"));
1656 exit(1);
1657 }
1658 break;
1659 case 'G':
1660 flex_bg_size = strtoul(optarg, &tmp, 0);
1661 if (*tmp) {
1662 com_err(program_name, 0, "%s",
1663 _("Illegal number for flex_bg size"));
1664 exit(1);
1665 }
1666 if (flex_bg_size < 1 ||
1667 (flex_bg_size & (flex_bg_size-1)) != 0) {
1668 com_err(program_name, 0, "%s",
1669 _("flex_bg size must be a power of 2"));
1670 exit(1);
1671 }
1672 if (flex_bg_size > MAX_32_NUM) {
1673 com_err(program_name, 0,
1674 _("flex_bg size (%lu) must be less than"
1675 " or equal to 2^31"), flex_bg_size);
1676 exit(1);
1677 }
1678 break;
1679 case 'i':
1680 inode_ratio = parse_num_blocks(optarg, -1);
1681 if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1682 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
1683 com_err(program_name, 0,
1684 _("invalid inode ratio %s (min %d/max %d)"),
1685 optarg, EXT2_MIN_BLOCK_SIZE,
1686 EXT2_MAX_BLOCK_SIZE * 1024);
1687 exit(1);
1688 }
1689 break;
1690 case 'I':
1691 inode_size = strtoul(optarg, &tmp, 0);
1692 if (*tmp) {
1693 com_err(program_name, 0,
1694 _("invalid inode size - %s"), optarg);
1695 exit(1);
1696 }
1697 break;
1698 case 'j':
1699 if (!journal_size)
1700 journal_size = -1;
1701 break;
1702 case 'J':
1703 parse_journal_opts(optarg);
1704 break;
1705 case 'K':
1706 fprintf(stderr, "%s",
1707 _("Warning: -K option is deprecated and "
1708 "should not be used anymore. Use "
1709 "\'-E nodiscard\' extended option "
1710 "instead!\n"));
1711 discard = 0;
1712 break;
1713 case 'l':
1714 bad_blocks_filename = realloc(bad_blocks_filename,
1715 strlen(optarg) + 1);
1716 if (!bad_blocks_filename) {
1717 com_err(program_name, ENOMEM, "%s",
1718 _("in malloc for bad_blocks_filename"));
1719 exit(1);
1720 }
1721 strcpy(bad_blocks_filename, optarg);
1722 break;
1723 case 'L':
1724 volume_label = optarg;
1725 if (strlen(volume_label) > EXT2_LABEL_LEN) {
1726 volume_label[EXT2_LABEL_LEN] = '\0';
1727 fprintf(stderr, _("Warning: label too long; will be truncated to '%s'\n\n"),
1728 volume_label);
1729 }
1730 break;
1731 case 'm':
1732 reserved_ratio = strtod(optarg, &tmp);
1733 if ( *tmp || reserved_ratio > 50 ||
1734 reserved_ratio < 0) {
1735 com_err(program_name, 0,
1736 _("invalid reserved blocks percent - %s"),
1737 optarg);
1738 exit(1);
1739 }
1740 break;
1741 case 'M':
1742 mount_dir = optarg;
1743 break;
1744 case 'n':
1745 noaction++;
1746 break;
1747 case 'N':
1748 num_inodes = strtoul(optarg, &tmp, 0);
1749 if (*tmp) {
1750 com_err(program_name, 0,
1751 _("bad num inodes - %s"), optarg);
1752 exit(1);
1753 }
1754 break;
1755 case 'o':
1756 creator_os = optarg;
1757 break;
1758 case 'O':
1759 retval = ext2fs_resize_mem(fs_features_size,
1760 fs_features_size + 1 + strlen(optarg),
1761 &fs_features);
1762 if (retval) {
1763 com_err(program_name, retval,
1764 _("while allocating fs_feature string"));
1765 exit(1);
1766 }
1767 if (fs_features_size)
1768 strcat(fs_features, ",");
1769 else
1770 fs_features[0] = 0;
1771 strcat(fs_features, optarg);
1772 fs_features_size += 1 + strlen(optarg);
1773 break;
1774 case 'q':
1775 quiet = 1;
1776 break;
1777 case 'r':
1778 r_opt = strtoul(optarg, &tmp, 0);
1779 if (*tmp) {
1780 com_err(program_name, 0,
1781 _("bad revision level - %s"), optarg);
1782 exit(1);
1783 }
1784 if (r_opt > EXT2_MAX_SUPP_REV) {
1785 com_err(program_name, EXT2_ET_REV_TOO_HIGH,
1786 _("while trying to create revision %d"), r_opt);
1787 exit(1);
1788 }
1789 fs_param.s_rev_level = r_opt;
1790 break;
1791 case 's': /* deprecated */
1792 s_opt = atoi(optarg);
1793 break;
1794 case 'S':
1795 super_only = 1;
1796 break;
1797 case 't':
1798 if (fs_type) {
1799 com_err(program_name, 0, "%s",
1800 _("The -t option may only be used once"));
1801 exit(1);
1802 }
1803 fs_type = strdup(optarg);
1804 break;
1805 case 'T':
1806 if (usage_types) {
1807 com_err(program_name, 0, "%s",
1808 _("The -T option may only be used once"));
1809 exit(1);
1810 }
1811 usage_types = strdup(optarg);
1812 break;
1813 case 'U':
1814 fs_uuid = optarg;
1815 break;
1816 case 'v':
1817 verbose = 1;
1818 break;
1819 case 'V':
1820 /* Print version number and exit */
1821 show_version_only++;
1822 break;
1823 case 'z':
1824 undo_file = optarg;
1825 break;
1826 default:
1827 usage();
1828 }
1829 }
1830 if ((optind == argc) && !show_version_only)
1831 usage();
1832 device_name = argv[optind++];
1833
1834 if (!quiet || show_version_only)
1835 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1836 E2FSPROGS_DATE);
1837
1838 if (show_version_only) {
1839 fprintf(stderr, _("\tUsing %s\n"),
1840 error_message(EXT2_ET_BASE));
1841 exit(0);
1842 }
1843
1844 /*
1845 * If there's no blocksize specified and there is a journal
1846 * device, use it to figure out the blocksize
1847 */
1848 if (blocksize <= 0 && journal_device) {
1849 ext2_filsys jfs;
1850 io_manager io_ptr;
1851
1852 #ifdef CONFIG_TESTIO_DEBUG
1853 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1854 io_ptr = test_io_manager;
1855 test_io_backing_manager = unix_io_manager;
1856 } else
1857 #endif
1858 io_ptr = unix_io_manager;
1859 retval = ext2fs_open(journal_device,
1860 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1861 0, io_ptr, &jfs);
1862 if (retval) {
1863 com_err(program_name, retval,
1864 _("while trying to open journal device %s\n"),
1865 journal_device);
1866 exit(1);
1867 }
1868 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1869 com_err(program_name, 0,
1870 _("Journal dev blocksize (%d) smaller than "
1871 "minimum blocksize %d\n"), jfs->blocksize,
1872 -blocksize);
1873 exit(1);
1874 }
1875 blocksize = jfs->blocksize;
1876 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1877 fs_param.s_log_block_size =
1878 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1879 ext2fs_close_free(&jfs);
1880 }
1881
1882 if (optind < argc) {
1883 fs_blocks_count = parse_num_blocks2(argv[optind++],
1884 fs_param.s_log_block_size);
1885 if (!fs_blocks_count) {
1886 com_err(program_name, 0,
1887 _("invalid blocks '%s' on device '%s'"),
1888 argv[optind - 1], device_name);
1889 exit(1);
1890 }
1891 }
1892 if (optind < argc)
1893 usage();
1894
1895 profile_get_integer(profile, "options", "proceed_delay", 0, 0,
1896 &proceed_delay);
1897
1898 /* The isatty() test is so we don't break existing scripts */
1899 flags = CREATE_FILE;
1900 if (isatty(0) && isatty(1) && !offset)
1901 flags |= CHECK_FS_EXIST;
1902 if (!quiet)
1903 flags |= VERBOSE_CREATE;
1904 if (fs_blocks_count == 0)
1905 flags |= NO_SIZE;
1906 else
1907 explicit_fssize = 1;
1908 if (!check_plausibility(device_name, flags, &is_device) && !force)
1909 proceed_question(proceed_delay);
1910
1911 check_mount(device_name, force, _("filesystem"));
1912
1913 /* Determine the size of the device (if possible) */
1914 if (noaction && fs_blocks_count) {
1915 dev_size = fs_blocks_count;
1916 retval = 0;
1917 } else
1918 #ifndef _WIN32
1919 retval = ext2fs_get_device_size2(device_name,
1920 EXT2_BLOCK_SIZE(&fs_param),
1921 &dev_size);
1922 #else
1923 retval = ext2fs_get_device_size(device_name,
1924 EXT2_BLOCK_SIZE(&fs_param),
1925 &dev_size);
1926 #endif
1927 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1928 com_err(program_name, retval, "%s",
1929 _("while trying to determine filesystem size"));
1930 exit(1);
1931 }
1932 if (!fs_blocks_count) {
1933 if (retval == EXT2_ET_UNIMPLEMENTED) {
1934 com_err(program_name, 0, "%s",
1935 _("Couldn't determine device size; you "
1936 "must specify\nthe size of the "
1937 "filesystem\n"));
1938 exit(1);
1939 } else {
1940 if (dev_size == 0) {
1941 com_err(program_name, 0, "%s",
1942 _("Device size reported to be zero. "
1943 "Invalid partition specified, or\n\t"
1944 "partition table wasn't reread "
1945 "after running fdisk, due to\n\t"
1946 "a modified partition being busy "
1947 "and in use. You may need to reboot\n\t"
1948 "to re-read your partition table.\n"
1949 ));
1950 exit(1);
1951 }
1952 fs_blocks_count = dev_size;
1953 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
1954 fs_blocks_count &= ~((blk64_t) ((sys_page_size /
1955 EXT2_BLOCK_SIZE(&fs_param))-1));
1956 }
1957 } else if (!force && is_device && (fs_blocks_count > dev_size)) {
1958 com_err(program_name, 0, "%s",
1959 _("Filesystem larger than apparent device size."));
1960 proceed_question(proceed_delay);
1961 }
1962
1963 if (!fs_type)
1964 profile_get_string(profile, "devices", device_name,
1965 "fs_type", 0, &fs_type);
1966 if (!usage_types)
1967 profile_get_string(profile, "devices", device_name,
1968 "usage_types", 0, &usage_types);
1969
1970 /*
1971 * We have the file system (or device) size, so we can now
1972 * determine the appropriate file system types so the fs can
1973 * be appropriately configured.
1974 */
1975 fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
1976 fs_blocks_count ? fs_blocks_count : dev_size,
1977 argv[0]);
1978 if (!fs_types) {
1979 fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
1980 exit(1);
1981 }
1982
1983 /* Figure out what features should be enabled */
1984
1985 tmp = NULL;
1986 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
1987 tmp = get_string_from_profile(fs_types, "base_features",
1988 "sparse_super,large_file,filetype,resize_inode,dir_index");
1989 edit_feature(tmp, &fs_param.s_feature_compat);
1990 free(tmp);
1991
1992 /* And which mount options as well */
1993 tmp = get_string_from_profile(fs_types, "default_mntopts",
1994 "acl,user_xattr");
1995 edit_mntopts(tmp, &fs_param.s_default_mount_opts);
1996 if (tmp)
1997 free(tmp);
1998
1999 for (cpp = fs_types; *cpp; cpp++) {
2000 tmp = NULL;
2001 profile_get_string(profile, "fs_types", *cpp,
2002 "features", "", &tmp);
2003 if (tmp && *tmp)
2004 edit_feature(tmp, &fs_param.s_feature_compat);
2005 if (tmp)
2006 free(tmp);
2007 }
2008 tmp = get_string_from_profile(fs_types, "default_features",
2009 "");
2010 }
2011 /* Mask off features which aren't supported by the Hurd */
2012 if (for_hurd(creator_os)) {
2013 ext2fs_clear_feature_filetype(&fs_param);
2014 ext2fs_clear_feature_huge_file(&fs_param);
2015 ext2fs_clear_feature_metadata_csum(&fs_param);
2016 ext2fs_clear_feature_ea_inode(&fs_param);
2017 }
2018 edit_feature(fs_features ? fs_features : tmp,
2019 &fs_param.s_feature_compat);
2020 if (tmp)
2021 free(tmp);
2022 (void) ext2fs_free_mem(&fs_features);
2023 /*
2024 * If the user specified features incompatible with the Hurd, complain
2025 */
2026 if (for_hurd(creator_os)) {
2027 if (ext2fs_has_feature_filetype(&fs_param)) {
2028 fprintf(stderr, "%s", _("The HURD does not support the "
2029 "filetype feature.\n"));
2030 exit(1);
2031 }
2032 if (ext2fs_has_feature_huge_file(&fs_param)) {
2033 fprintf(stderr, "%s", _("The HURD does not support the "
2034 "huge_file feature.\n"));
2035 exit(1);
2036 }
2037 if (ext2fs_has_feature_metadata_csum(&fs_param)) {
2038 fprintf(stderr, "%s", _("The HURD does not support the "
2039 "metadata_csum feature.\n"));
2040 exit(1);
2041 }
2042 if (ext2fs_has_feature_ea_inode(&fs_param)) {
2043 fprintf(stderr, "%s", _("The HURD does not support the "
2044 "ea_inode feature.\n"));
2045 exit(1);
2046 }
2047 }
2048
2049 /* Get the hardware sector sizes, if available */
2050 retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
2051 if (retval) {
2052 com_err(program_name, retval, "%s",
2053 _("while trying to determine hardware sector size"));
2054 exit(1);
2055 }
2056 retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
2057 if (retval) {
2058 com_err(program_name, retval, "%s",
2059 _("while trying to determine physical sector size"));
2060 exit(1);
2061 }
2062
2063 tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
2064 if (tmp != NULL)
2065 lsector_size = atoi(tmp);
2066 tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
2067 if (tmp != NULL)
2068 psector_size = atoi(tmp);
2069
2070 /* Older kernels may not have physical/logical distinction */
2071 if (!psector_size)
2072 psector_size = lsector_size;
2073
2074 if (blocksize <= 0) {
2075 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
2076
2077 if (use_bsize == -1) {
2078 use_bsize = sys_page_size;
2079 if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
2080 use_bsize = 4096;
2081 }
2082 if (lsector_size && use_bsize < lsector_size)
2083 use_bsize = lsector_size;
2084 if ((blocksize < 0) && (use_bsize < (-blocksize)))
2085 use_bsize = -blocksize;
2086 blocksize = use_bsize;
2087 fs_blocks_count /= (blocksize / 1024);
2088 } else {
2089 if (blocksize < lsector_size) { /* Impossible */
2090 com_err(program_name, EINVAL, "%s",
2091 _("while setting blocksize; too small "
2092 "for device\n"));
2093 exit(1);
2094 } else if ((blocksize < psector_size) &&
2095 (psector_size <= sys_page_size)) { /* Suboptimal */
2096 fprintf(stderr, _("Warning: specified blocksize %d is "
2097 "less than device physical sectorsize %d\n"),
2098 blocksize, psector_size);
2099 }
2100 }
2101
2102 fs_param.s_log_block_size =
2103 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
2104
2105 /*
2106 * We now need to do a sanity check of fs_blocks_count for
2107 * 32-bit vs 64-bit block number support.
2108 */
2109 if ((fs_blocks_count > MAX_32_NUM) &&
2110 ext2fs_has_feature_64bit(&fs_param))
2111 ext2fs_clear_feature_resize_inode(&fs_param);
2112 if ((fs_blocks_count > MAX_32_NUM) &&
2113 !ext2fs_has_feature_64bit(&fs_param) &&
2114 get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
2115 ext2fs_set_feature_64bit(&fs_param);
2116 ext2fs_clear_feature_resize_inode(&fs_param);
2117 }
2118 if ((fs_blocks_count > MAX_32_NUM) &&
2119 !ext2fs_has_feature_64bit(&fs_param)) {
2120 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2121 "too big to be expressed\n\t"
2122 "in 32 bits using a blocksize of %d.\n"),
2123 program_name, fs_blocks_count, device_name,
2124 EXT2_BLOCK_SIZE(&fs_param));
2125 exit(1);
2126 }
2127 /*
2128 * Guard against group descriptor count overflowing... Mostly to avoid
2129 * strange results for absurdly large devices.
2130 */
2131 if (fs_blocks_count > ((1ULL << (fs_param.s_log_block_size + 3 + 32)) - 1)) {
2132 fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
2133 "too big to create\n\t"
2134 "a filesystem using a blocksize of %d.\n"),
2135 program_name, fs_blocks_count, device_name,
2136 EXT2_BLOCK_SIZE(&fs_param));
2137 exit(1);
2138 }
2139
2140 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2141
2142 if (ext2fs_has_feature_journal_dev(&fs_param)) {
2143 int i;
2144
2145 for (i=0; fs_types[i]; i++) {
2146 free(fs_types[i]);
2147 fs_types[i] = 0;
2148 }
2149 fs_types[0] = strdup("journal");
2150 fs_types[1] = 0;
2151 }
2152
2153 if (verbose) {
2154 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
2155 print_str_list(fs_types);
2156 }
2157
2158 if (r_opt == EXT2_GOOD_OLD_REV &&
2159 (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
2160 fs_param.s_feature_ro_compat)) {
2161 fprintf(stderr, "%s", _("Filesystem features not supported "
2162 "with revision 0 filesystems\n"));
2163 exit(1);
2164 }
2165
2166 if (s_opt > 0) {
2167 if (r_opt == EXT2_GOOD_OLD_REV) {
2168 fprintf(stderr, "%s",
2169 _("Sparse superblocks not supported "
2170 "with revision 0 filesystems\n"));
2171 exit(1);
2172 }
2173 ext2fs_set_feature_sparse_super(&fs_param);
2174 } else if (s_opt == 0)
2175 ext2fs_clear_feature_sparse_super(&fs_param);
2176
2177 if (journal_size != 0) {
2178 if (r_opt == EXT2_GOOD_OLD_REV) {
2179 fprintf(stderr, "%s", _("Journals not supported with "
2180 "revision 0 filesystems\n"));
2181 exit(1);
2182 }
2183 ext2fs_set_feature_journal(&fs_param);
2184 }
2185
2186 /* Get reserved_ratio from profile if not specified on cmd line. */
2187 if (reserved_ratio < 0.0) {
2188 reserved_ratio = get_double_from_profile(
2189 fs_types, "reserved_ratio", 5.0);
2190 if (reserved_ratio > 50 || reserved_ratio < 0) {
2191 com_err(program_name, 0,
2192 _("invalid reserved blocks percent - %lf"),
2193 reserved_ratio);
2194 exit(1);
2195 }
2196 }
2197
2198 if (ext2fs_has_feature_journal_dev(&fs_param)) {
2199 reserved_ratio = 0;
2200 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
2201 fs_param.s_feature_compat = 0;
2202 fs_param.s_feature_ro_compat &=
2203 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
2204 }
2205
2206 /* Check the user's mkfs options for 64bit */
2207 if (ext2fs_has_feature_64bit(&fs_param) &&
2208 !ext2fs_has_feature_extents(&fs_param)) {
2209 printf("%s", _("Extents MUST be enabled for a 64-bit "
2210 "filesystem. Pass -O extents to rectify.\n"));
2211 exit(1);
2212 }
2213
2214 /* Set first meta blockgroup via an environment variable */
2215 /* (this is mostly for debugging purposes) */
2216 if (ext2fs_has_feature_meta_bg(&fs_param) &&
2217 (tmp = getenv("MKE2FS_FIRST_META_BG")))
2218 fs_param.s_first_meta_bg = atoi(tmp);
2219 if (ext2fs_has_feature_bigalloc(&fs_param)) {
2220 if (!cluster_size)
2221 cluster_size = get_int_from_profile(fs_types,
2222 "cluster_size",
2223 blocksize*16);
2224 fs_param.s_log_cluster_size =
2225 int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
2226 if (fs_param.s_log_cluster_size &&
2227 fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
2228 com_err(program_name, 0, "%s",
2229 _("The cluster size may not be "
2230 "smaller than the block size.\n"));
2231 exit(1);
2232 }
2233 } else if (cluster_size) {
2234 com_err(program_name, 0, "%s",
2235 _("specifying a cluster size requires the "
2236 "bigalloc feature"));
2237 exit(1);
2238 } else
2239 fs_param.s_log_cluster_size = fs_param.s_log_block_size;
2240
2241 if (inode_ratio == 0) {
2242 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
2243 8192);
2244 if (inode_ratio < blocksize)
2245 inode_ratio = blocksize;
2246 if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
2247 inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
2248 }
2249
2250 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
2251 retval = get_device_geometry(device_name, &fs_param,
2252 (unsigned int) psector_size);
2253 if (retval < 0) {
2254 fprintf(stderr,
2255 _("warning: Unable to get device geometry for %s\n"),
2256 device_name);
2257 } else if (retval) {
2258 printf(_("%s alignment is offset by %lu bytes.\n"),
2259 device_name, retval);
2260 printf(_("This may result in very poor performance, "
2261 "(re)-partitioning suggested.\n"));
2262 }
2263 #endif
2264
2265 num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
2266
2267 blocksize = EXT2_BLOCK_SIZE(&fs_param);
2268
2269 /*
2270 * Initialize s_desc_size so that the parse_extended_opts()
2271 * can correctly handle "-E resize=NNN" if the 64-bit option
2272 * is set.
2273 */
2274 if (ext2fs_has_feature_64bit(&fs_param))
2275 fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
2276
2277 /* This check should happen beyond the last assignment to blocksize */
2278 if (blocksize > sys_page_size) {
2279 if (!force) {
2280 com_err(program_name, 0,
2281 _("%d-byte blocks too big for system (max %d)"),
2282 blocksize, sys_page_size);
2283 proceed_question(proceed_delay);
2284 }
2285 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
2286 "(max %d), forced to continue\n"),
2287 blocksize, sys_page_size);
2288 }
2289
2290 /* Metadata checksumming wasn't totally stable before 3.18. */
2291 if (is_before_linux_ver(3, 18, 0) &&
2292 ext2fs_has_feature_metadata_csum(&fs_param))
2293 fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
2294 "improved stability of the metadata and journal "
2295 "checksum features.\n"));
2296
2297 /*
2298 * On newer kernels we do have lazy_itable_init support. So pick the
2299 * right default in case ext4 module is not loaded.
2300 */
2301 if (is_before_linux_ver(2, 6, 37))
2302 lazy_itable_init = 0;
2303 else
2304 lazy_itable_init = 1;
2305
2306 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
2307 lazy_itable_init = 1;
2308
2309 lazy_itable_init = get_bool_from_profile(fs_types,
2310 "lazy_itable_init",
2311 lazy_itable_init);
2312 discard = get_bool_from_profile(fs_types, "discard" , discard);
2313 journal_flags |= get_bool_from_profile(fs_types,
2314 "lazy_journal_init", 0) ?
2315 EXT2_MKJOURNAL_LAZYINIT : 0;
2316 journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
2317
2318 if (!journal_location_string)
2319 journal_location_string = get_string_from_profile(fs_types,
2320 "journal_location", "");
2321 if ((journal_location == ~0ULL) && journal_location_string &&
2322 *journal_location_string)
2323 journal_location = parse_num_blocks2(journal_location_string,
2324 fs_param.s_log_block_size);
2325 free(journal_location_string);
2326
2327 packed_meta_blocks = get_bool_from_profile(fs_types,
2328 "packed_meta_blocks", 0);
2329 if (packed_meta_blocks)
2330 journal_location = 0;
2331
2332 /* Get options from profile */
2333 for (cpp = fs_types; *cpp; cpp++) {
2334 tmp = NULL;
2335 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
2336 if (tmp && *tmp)
2337 parse_extended_opts(&fs_param, tmp);
2338 free(tmp);
2339 }
2340
2341 if (extended_opts)
2342 parse_extended_opts(&fs_param, extended_opts);
2343
2344 if (explicit_fssize == 0 && offset > 0) {
2345 fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
2346 ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
2347 fprintf(stderr,
2348 _("\nWarning: offset specified without an "
2349 "explicit file system size.\n"
2350 "Creating a file system with %llu blocks "
2351 "but this might\n"
2352 "not be what you want.\n\n"),
2353 (unsigned long long) fs_blocks_count);
2354 }
2355
2356 if (quotatype_bits & QUOTA_PRJ_BIT)
2357 ext2fs_set_feature_project(&fs_param);
2358
2359 if (ext2fs_has_feature_project(&fs_param)) {
2360 quotatype_bits |= QUOTA_PRJ_BIT;
2361 if (inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2362 com_err(program_name, 0,
2363 _("%d byte inodes are too small for "
2364 "project quota"),
2365 inode_size);
2366 exit(1);
2367 }
2368 if (inode_size == 0) {
2369 inode_size = get_int_from_profile(fs_types,
2370 "inode_size", 0);
2371 if (inode_size <= EXT2_GOOD_OLD_INODE_SIZE*2)
2372 inode_size = EXT2_GOOD_OLD_INODE_SIZE*2;
2373 }
2374 }
2375
2376 /* Don't allow user to set both metadata_csum and uninit_bg bits. */
2377 if (ext2fs_has_feature_metadata_csum(&fs_param) &&
2378 ext2fs_has_feature_gdt_csum(&fs_param))
2379 ext2fs_clear_feature_gdt_csum(&fs_param);
2380
2381 /* Can't support bigalloc feature without extents feature */
2382 if (ext2fs_has_feature_bigalloc(&fs_param) &&
2383 !ext2fs_has_feature_extents(&fs_param)) {
2384 com_err(program_name, 0, "%s",
2385 _("Can't support bigalloc feature without "
2386 "extents feature"));
2387 exit(1);
2388 }
2389
2390 if (ext2fs_has_feature_meta_bg(&fs_param) &&
2391 ext2fs_has_feature_resize_inode(&fs_param)) {
2392 fprintf(stderr, "%s", _("The resize_inode and meta_bg "
2393 "features are not compatible.\n"
2394 "They can not be both enabled "
2395 "simultaneously.\n"));
2396 exit(1);
2397 }
2398
2399 if (!quiet && ext2fs_has_feature_bigalloc(&fs_param))
2400 fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
2401 "still under development\n"
2402 "See https://ext4.wiki.kernel.org/"
2403 "index.php/Bigalloc for more information\n\n"));
2404
2405 /*
2406 * Since sparse_super is the default, we would only have a problem
2407 * here if it was explicitly disabled.
2408 */
2409 if (ext2fs_has_feature_resize_inode(&fs_param) &&
2410 !ext2fs_has_feature_sparse_super(&fs_param)) {
2411 com_err(program_name, 0, "%s",
2412 _("reserved online resize blocks not supported "
2413 "on non-sparse filesystem"));
2414 exit(1);
2415 }
2416
2417 if (fs_param.s_blocks_per_group) {
2418 if (fs_param.s_blocks_per_group < 256 ||
2419 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
2420 com_err(program_name, 0, "%s",
2421 _("blocks per group count out of range"));
2422 exit(1);
2423 }
2424 }
2425
2426 /*
2427 * If the bigalloc feature is enabled, then the -g option will
2428 * specify the number of clusters per group.
2429 */
2430 if (ext2fs_has_feature_bigalloc(&fs_param)) {
2431 fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
2432 fs_param.s_blocks_per_group = 0;
2433 }
2434
2435 if (inode_size == 0)
2436 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
2437 if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
2438 flex_bg_size = get_uint_from_profile(fs_types,
2439 "flex_bg_size", 16);
2440 if (flex_bg_size) {
2441 if (!ext2fs_has_feature_flex_bg(&fs_param)) {
2442 com_err(program_name, 0, "%s",
2443 _("Flex_bg feature not enabled, so "
2444 "flex_bg size may not be specified"));
2445 exit(1);
2446 }
2447 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
2448 }
2449
2450 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
2451 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
2452 inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
2453 inode_size & (inode_size - 1)) {
2454 com_err(program_name, 0,
2455 _("invalid inode size %d (min %d/max %d)"),
2456 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
2457 blocksize);
2458 exit(1);
2459 }
2460 fs_param.s_inode_size = inode_size;
2461 }
2462
2463 /*
2464 * If inode size is 128 and inline data is enabled, we need
2465 * to notify users that inline data will never be useful.
2466 */
2467 if (ext2fs_has_feature_inline_data(&fs_param) &&
2468 fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
2469 com_err(program_name, 0,
2470 _("%d byte inodes are too small for inline data; "
2471 "specify larger size"),
2472 fs_param.s_inode_size);
2473 exit(1);
2474 }
2475
2476 /* Make sure number of inodes specified will fit in 32 bits */
2477 if (num_inodes == 0) {
2478 unsigned long long n;
2479 n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
2480 if (n > MAX_32_NUM) {
2481 if (ext2fs_has_feature_64bit(&fs_param))
2482 num_inodes = MAX_32_NUM;
2483 else {
2484 com_err(program_name, 0,
2485 _("too many inodes (%llu), raise "
2486 "inode ratio?"), n);
2487 exit(1);
2488 }
2489 }
2490 } else if (num_inodes > MAX_32_NUM) {
2491 com_err(program_name, 0,
2492 _("too many inodes (%llu), specify < 2^32 inodes"),
2493 num_inodes);
2494 exit(1);
2495 }
2496 /*
2497 * Calculate number of inodes based on the inode ratio
2498 */
2499 fs_param.s_inodes_count = num_inodes ? num_inodes :
2500 (ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
2501
2502 if ((((unsigned long long)fs_param.s_inodes_count) *
2503 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
2504 ((ext2fs_blocks_count(&fs_param)) *
2505 EXT2_BLOCK_SIZE(&fs_param))) {
2506 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
2507 "(%u) too big for a\n\t"
2508 "filesystem with %llu blocks, "
2509 "specify higher inode_ratio (-i)\n\t"
2510 "or lower inode count (-N).\n"),
2511 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
2512 fs_param.s_inodes_count,
2513 (unsigned long long) ext2fs_blocks_count(&fs_param));
2514 exit(1);
2515 }
2516
2517 /*
2518 * Calculate number of blocks to reserve
2519 */
2520 ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
2521 ext2fs_blocks_count(&fs_param) / 100.0);
2522
2523 if (ext2fs_has_feature_sparse_super2(&fs_param)) {
2524 if (num_backups >= 1)
2525 fs_param.s_backup_bgs[0] = 1;
2526 if (num_backups >= 2)
2527 fs_param.s_backup_bgs[1] = ~0;
2528 }
2529
2530 free(fs_type);
2531 free(usage_types);
2532 }
2533
2534 static int should_do_undo(const char *name)
2535 {
2536 errcode_t retval;
2537 io_channel channel;
2538 __u16 s_magic;
2539 struct ext2_super_block super;
2540 io_manager manager = unix_io_manager;
2541 int csum_flag, force_undo;
2542
2543 csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
2544 ext2fs_has_feature_gdt_csum(&fs_param);
2545 force_undo = get_int_from_profile(fs_types, "force_undo", 0);
2546 if (!force_undo && (!csum_flag || !lazy_itable_init))
2547 return 0;
2548
2549 retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel);
2550 if (retval) {
2551 /*
2552 * We don't handle error cases instead we
2553 * declare that the file system doesn't exist
2554 * and let the rest of mke2fs take care of
2555 * error
2556 */
2557 retval = 0;
2558 goto open_err_out;
2559 }
2560
2561 io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
2562 retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
2563 if (retval) {
2564 retval = 0;
2565 goto err_out;
2566 }
2567
2568 #if defined(WORDS_BIGENDIAN)
2569 s_magic = ext2fs_swab16(super.s_magic);
2570 #else
2571 s_magic = super.s_magic;
2572 #endif
2573
2574 if (s_magic == EXT2_SUPER_MAGIC)
2575 retval = 1;
2576
2577 err_out:
2578 io_channel_close(channel);
2579
2580 open_err_out:
2581
2582 return retval;
2583 }
2584
2585 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
2586 {
2587 errcode_t retval = ENOMEM;
2588 char *tdb_dir = NULL, *tdb_file = NULL;
2589 char *dev_name, *tmp_name;
2590 int free_tdb_dir = 0;
2591
2592 /* (re)open a specific undo file */
2593 if (undo_file && undo_file[0] != 0) {
2594 retval = set_undo_io_backing_manager(*io_ptr);
2595 if (retval)
2596 goto err;
2597 *io_ptr = undo_io_manager;
2598 retval = set_undo_io_backup_file(undo_file);
2599 if (retval)
2600 goto err;
2601 printf(_("Overwriting existing filesystem; this can be undone "
2602 "using the command:\n"
2603 " e2undo %s %s\n\n"), undo_file, name);
2604 return retval;
2605 }
2606
2607 /*
2608 * Configuration via a conf file would be
2609 * nice
2610 */
2611 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2612 if (!tdb_dir) {
2613 profile_get_string(profile, "defaults",
2614 "undo_dir", 0, "/var/lib/e2fsprogs",
2615 &tdb_dir);
2616 free_tdb_dir = 1;
2617 }
2618
2619 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2620 access(tdb_dir, W_OK)) {
2621 if (free_tdb_dir)
2622 free(tdb_dir);
2623 return 0;
2624 }
2625
2626 tmp_name = strdup(name);
2627 if (!tmp_name)
2628 goto errout;
2629 dev_name = basename(tmp_name);
2630 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
2631 if (!tdb_file) {
2632 free(tmp_name);
2633 goto errout;
2634 }
2635 sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
2636 free(tmp_name);
2637
2638 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2639 retval = errno;
2640 com_err(program_name, retval,
2641 _("while trying to delete %s"), tdb_file);
2642 goto errout;
2643 }
2644
2645 retval = set_undo_io_backing_manager(*io_ptr);
2646 if (retval)
2647 goto errout;
2648 *io_ptr = undo_io_manager;
2649 retval = set_undo_io_backup_file(tdb_file);
2650 if (retval)
2651 goto errout;
2652 printf(_("Overwriting existing filesystem; this can be undone "
2653 "using the command:\n"
2654 " e2undo %s %s\n\n"), tdb_file, name);
2655
2656 if (free_tdb_dir)
2657 free(tdb_dir);
2658 free(tdb_file);
2659 return 0;
2660
2661 errout:
2662 if (free_tdb_dir)
2663 free(tdb_dir);
2664 free(tdb_file);
2665 err:
2666 com_err(program_name, retval, "%s",
2667 _("while trying to setup undo file\n"));
2668 return retval;
2669 }
2670
2671 static int mke2fs_discard_device(ext2_filsys fs)
2672 {
2673 struct ext2fs_numeric_progress_struct progress;
2674 blk64_t blocks = ext2fs_blocks_count(fs->super);
2675 blk64_t count = DISCARD_STEP_MB;
2676 blk64_t cur;
2677 int retval = 0;
2678
2679 /*
2680 * Let's try if discard really works on the device, so
2681 * we do not print numeric progress resulting in failure
2682 * afterwards.
2683 */
2684 retval = io_channel_discard(fs->io, 0, fs->blocksize);
2685 if (retval)
2686 return retval;
2687 cur = fs->blocksize;
2688
2689 count *= (1024 * 1024);
2690 count /= fs->blocksize;
2691
2692 ext2fs_numeric_progress_init(fs, &progress,
2693 _("Discarding device blocks: "),
2694 blocks);
2695 while (cur < blocks) {
2696 ext2fs_numeric_progress_update(fs, &progress, cur);
2697
2698 if (cur + count > blocks)
2699 count = blocks - cur;
2700
2701 retval = io_channel_discard(fs->io, cur, count);
2702 if (retval)
2703 break;
2704 cur += count;
2705 }
2706
2707 if (retval) {
2708 ext2fs_numeric_progress_close(fs, &progress,
2709 _("failed - "));
2710 if (!quiet)
2711 printf("%s\n",error_message(retval));
2712 } else
2713 ext2fs_numeric_progress_close(fs, &progress,
2714 _("done \n"));
2715
2716 return retval;
2717 }
2718
2719 static void fix_cluster_bg_counts(ext2_filsys fs)
2720 {
2721 blk64_t block, num_blocks, last_block, next;
2722 blk64_t tot_free = 0;
2723 errcode_t retval;
2724 dgrp_t group = 0;
2725 int grp_free = 0;
2726
2727 num_blocks = ext2fs_blocks_count(fs->super);
2728 last_block = ext2fs_group_last_block2(fs, group);
2729 block = fs->super->s_first_data_block;
2730 while (block < num_blocks) {
2731 retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
2732 block, last_block, &next);
2733 if (retval == 0)
2734 block = next;
2735 else {
2736 block = last_block + 1;
2737 goto next_bg;
2738 }
2739
2740 retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
2741 block, last_block, &next);
2742 if (retval)
2743 next = last_block + 1;
2744 grp_free += EXT2FS_NUM_B2C(fs, next - block);
2745 tot_free += next - block;
2746 block = next;
2747
2748 if (block > last_block) {
2749 next_bg:
2750 ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
2751 ext2fs_group_desc_csum_set(fs, group);
2752 grp_free = 0;
2753 group++;
2754 last_block = ext2fs_group_last_block2(fs, group);
2755 }
2756 }
2757 ext2fs_free_blocks_count_set(fs->super, tot_free);
2758 }
2759
2760 static int create_quota_inodes(ext2_filsys fs)
2761 {
2762 quota_ctx_t qctx;
2763 errcode_t retval;
2764
2765 retval = quota_init_context(&qctx, fs, quotatype_bits);
2766 if (retval) {
2767 com_err(program_name, retval,
2768 _("while initializing quota context"));
2769 exit(1);
2770 }
2771 quota_compute_usage(qctx);
2772 retval = quota_write_inode(qctx, quotatype_bits);
2773 if (retval) {
2774 com_err(program_name, retval,
2775 _("while writing quota inodes"));
2776 exit(1);
2777 }
2778 quota_release_context(&qctx);
2779
2780 return 0;
2781 }
2782
2783 static errcode_t set_error_behavior(ext2_filsys fs)
2784 {
2785 char *arg = NULL;
2786 short errors = fs->super->s_errors;
2787
2788 arg = get_string_from_profile(fs_types, "errors", NULL);
2789 if (arg == NULL)
2790 goto try_user;
2791
2792 if (strcmp(arg, "continue") == 0)
2793 errors = EXT2_ERRORS_CONTINUE;
2794 else if (strcmp(arg, "remount-ro") == 0)
2795 errors = EXT2_ERRORS_RO;
2796 else if (strcmp(arg, "panic") == 0)
2797 errors = EXT2_ERRORS_PANIC;
2798 else {
2799 com_err(program_name, 0,
2800 _("bad error behavior in profile - %s"),
2801 arg);
2802 free(arg);
2803 return EXT2_ET_INVALID_ARGUMENT;
2804 }
2805 free(arg);
2806
2807 try_user:
2808 if (errors_behavior)
2809 errors = errors_behavior;
2810
2811 fs->super->s_errors = errors;
2812 return 0;
2813 }
2814
2815 int main (int argc, char *argv[])
2816 {
2817 errcode_t retval = 0;
2818 ext2_filsys fs;
2819 badblocks_list bb_list = 0;
2820 unsigned int journal_blocks = 0;
2821 unsigned int i, checkinterval;
2822 int max_mnt_count;
2823 int val, hash_alg;
2824 int flags;
2825 int old_bitmaps;
2826 io_manager io_ptr;
2827 char opt_string[40];
2828 char *hash_alg_str;
2829 int itable_zeroed = 0;
2830
2831 #ifdef ENABLE_NLS
2832 setlocale(LC_MESSAGES, "");
2833 setlocale(LC_CTYPE, "");
2834 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2835 textdomain(NLS_CAT_NAME);
2836 set_com_err_gettext(gettext);
2837 #endif
2838 PRS(argc, argv);
2839
2840 #ifdef CONFIG_TESTIO_DEBUG
2841 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2842 io_ptr = test_io_manager;
2843 test_io_backing_manager = unix_io_manager;
2844 } else
2845 #endif
2846 io_ptr = unix_io_manager;
2847
2848 if (undo_file != NULL || should_do_undo(device_name)) {
2849 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2850 if (retval)
2851 exit(1);
2852 }
2853
2854 /*
2855 * Initialize the superblock....
2856 */
2857 flags = EXT2_FLAG_EXCLUSIVE;
2858 if (direct_io)
2859 flags |= EXT2_FLAG_DIRECT_IO;
2860 profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
2861 &old_bitmaps);
2862 if (!old_bitmaps)
2863 flags |= EXT2_FLAG_64BITS;
2864 /*
2865 * By default, we print how many inode tables or block groups
2866 * or whatever we've written so far. The quiet flag disables
2867 * this, along with a lot of other output.
2868 */
2869 if (!quiet)
2870 flags |= EXT2_FLAG_PRINT_PROGRESS;
2871 if (android_sparse_file) {
2872 android_sparse_params = malloc(PATH_MAX + 32);
2873 if (!android_sparse_params) {
2874 com_err(program_name, ENOMEM, "%s",
2875 _("in malloc for android_sparse_params"));
2876 exit(1);
2877 }
2878 snprintf(android_sparse_params, PATH_MAX + 32, "(%s):%u:%u",
2879 device_name, fs_param.s_blocks_count,
2880 1024 << fs_param.s_log_block_size);
2881 retval = ext2fs_initialize(android_sparse_params, flags,
2882 &fs_param, sparse_io_manager, &fs);
2883 } else
2884 retval = ext2fs_initialize(device_name, flags, &fs_param,
2885 io_ptr, &fs);
2886 if (retval) {
2887 com_err(device_name, retval, "%s",
2888 _("while setting up superblock"));
2889 exit(1);
2890 }
2891 fs->progress_ops = &ext2fs_numeric_progress_ops;
2892
2893 /* Set the error behavior */
2894 retval = set_error_behavior(fs);
2895 if (retval)
2896 usage();
2897
2898 /* Check the user's mkfs options for metadata checksumming */
2899 if (!quiet &&
2900 !ext2fs_has_feature_journal_dev(fs->super) &&
2901 ext2fs_has_feature_metadata_csum(fs->super)) {
2902 if (!ext2fs_has_feature_extents(fs->super))
2903 printf("%s",
2904 _("Extents are not enabled. The file extent "
2905 "tree can be checksummed, whereas block maps "
2906 "cannot. Not enabling extents reduces the "
2907 "coverage of metadata checksumming. "
2908 "Pass -O extents to rectify.\n"));
2909 if (!ext2fs_has_feature_64bit(fs->super))
2910 printf("%s",
2911 _("64-bit filesystem support is not enabled. "
2912 "The larger fields afforded by this feature "
2913 "enable full-strength checksumming. "
2914 "Pass -O 64bit to rectify.\n"));
2915 }
2916
2917 if (ext2fs_has_feature_csum_seed(fs->super) &&
2918 !ext2fs_has_feature_metadata_csum(fs->super)) {
2919 printf("%s", _("The metadata_csum_seed feature "
2920 "requires the metadata_csum feature.\n"));
2921 exit(1);
2922 }
2923
2924 /* Calculate journal blocks */
2925 if (!journal_device && ((journal_size) ||
2926 ext2fs_has_feature_journal(&fs_param)))
2927 journal_blocks = figure_journal_size(journal_size, fs);
2928
2929 sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
2930 32768 : fs->blocksize * 8);
2931 io_channel_set_options(fs->io, opt_string);
2932 if (offset) {
2933 sprintf(opt_string, "offset=%llu", offset);
2934 io_channel_set_options(fs->io, opt_string);
2935 }
2936
2937 /* Can't undo discard ... */
2938 if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
2939 retval = mke2fs_discard_device(fs);
2940 if (!retval && io_channel_discard_zeroes_data(fs->io)) {
2941 if (verbose)
2942 printf("%s",
2943 _("Discard succeeded and will return "
2944 "0s - skipping inode table wipe\n"));
2945 lazy_itable_init = 1;
2946 itable_zeroed = 1;
2947 zero_hugefile = 0;
2948 }
2949 }
2950
2951 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
2952 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
2953
2954 if (ext2fs_has_feature_flex_bg(&fs_param) ||
2955 ext2fs_has_feature_huge_file(&fs_param) ||
2956 ext2fs_has_feature_gdt_csum(&fs_param) ||
2957 ext2fs_has_feature_dir_nlink(&fs_param) ||
2958 ext2fs_has_feature_metadata_csum(&fs_param) ||
2959 ext2fs_has_feature_extra_isize(&fs_param))
2960 fs->super->s_kbytes_written = 1;
2961
2962 /*
2963 * Wipe out the old on-disk superblock
2964 */
2965 if (!noaction)
2966 zap_sector(fs, 2, 6);
2967
2968 /*
2969 * Parse or generate a UUID for the filesystem
2970 */
2971 if (fs_uuid) {
2972 if ((strcasecmp(fs_uuid, "null") == 0) ||
2973 (strcasecmp(fs_uuid, "clear") == 0)) {
2974 uuid_clear(fs->super->s_uuid);
2975 } else if (strcasecmp(fs_uuid, "time") == 0) {
2976 uuid_generate_time(fs->super->s_uuid);
2977 } else if (strcasecmp(fs_uuid, "random") == 0) {
2978 uuid_generate(fs->super->s_uuid);
2979 } else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
2980 com_err(device_name, 0, "could not parse UUID: %s\n",
2981 fs_uuid);
2982 exit(1);
2983 }
2984 } else
2985 uuid_generate(fs->super->s_uuid);
2986
2987 if (ext2fs_has_feature_csum_seed(fs->super))
2988 fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
2989 fs->super->s_uuid, sizeof(fs->super->s_uuid));
2990
2991 ext2fs_init_csum_seed(fs);
2992
2993 /*
2994 * Initialize the directory index variables
2995 */
2996 hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
2997 "half_md4");
2998 hash_alg = e2p_string2hash(hash_alg_str);
2999 free(hash_alg_str);
3000 fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
3001 EXT2_HASH_HALF_MD4;
3002
3003 if (memcmp(fs_param.s_hash_seed, zero_buf,
3004 sizeof(fs_param.s_hash_seed)) != 0) {
3005 memcpy(fs->super->s_hash_seed, fs_param.s_hash_seed,
3006 sizeof(fs->super->s_hash_seed));
3007 } else
3008 uuid_generate((unsigned char *) fs->super->s_hash_seed);
3009
3010 /*
3011 * Periodic checks can be enabled/disabled via config file.
3012 * Note we override the kernel include file's idea of what the default
3013 * check interval (never) should be. It's a good idea to check at
3014 * least *occasionally*, specially since servers will never rarely get
3015 * to reboot, since Linux is so robust these days. :-)
3016 *
3017 * 180 days (six months) seems like a good value.
3018 */
3019 #ifdef EXT2_DFL_CHECKINTERVAL
3020 #undef EXT2_DFL_CHECKINTERVAL
3021 #endif
3022 #define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
3023
3024 if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
3025 fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
3026 fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
3027 /*
3028 * Add "jitter" to the superblock's check interval so that we
3029 * don't check all the filesystems at the same time. We use a
3030 * kludgy hack of using the UUID to derive a random jitter value
3031 */
3032 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
3033 val += fs->super->s_uuid[i];
3034 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
3035 } else
3036 fs->super->s_max_mnt_count = -1;
3037
3038 /*
3039 * Override the creator OS, if applicable
3040 */
3041 if (creator_os && !set_os(fs->super, creator_os)) {
3042 com_err (program_name, 0, _("unknown os - %s"), creator_os);
3043 exit(1);
3044 }
3045
3046 /*
3047 * For the Hurd, we will turn off filetype since it doesn't
3048 * support it.
3049 */
3050 if (fs->super->s_creator_os == EXT2_OS_HURD)
3051 ext2fs_clear_feature_filetype(fs->super);
3052
3053 /*
3054 * Set the volume label...
3055 */
3056 if (volume_label) {
3057 memset(fs->super->s_volume_name, 0,
3058 sizeof(fs->super->s_volume_name));
3059 strncpy(fs->super->s_volume_name, volume_label,
3060 sizeof(fs->super->s_volume_name));
3061 }
3062
3063 /*
3064 * Set the last mount directory
3065 */
3066 if (mount_dir) {
3067 memset(fs->super->s_last_mounted, 0,
3068 sizeof(fs->super->s_last_mounted));
3069 strncpy(fs->super->s_last_mounted, mount_dir,
3070 sizeof(fs->super->s_last_mounted));
3071 }
3072
3073 /* Set current default encryption algorithms for data and
3074 * filename encryption */
3075 if (ext2fs_has_feature_encrypt(fs->super)) {
3076 fs->super->s_encrypt_algos[0] =
3077 EXT4_ENCRYPTION_MODE_AES_256_XTS;
3078 fs->super->s_encrypt_algos[1] =
3079 EXT4_ENCRYPTION_MODE_AES_256_CTS;
3080 }
3081
3082 if (ext2fs_has_feature_metadata_csum(fs->super))
3083 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
3084
3085 if (!quiet || noaction)
3086 show_stats(fs);
3087
3088 if (noaction)
3089 exit(0);
3090
3091 if (ext2fs_has_feature_journal_dev(fs->super)) {
3092 create_journal_dev(fs);
3093 printf("\n");
3094 exit(ext2fs_close_free(&fs) ? 1 : 0);
3095 }
3096
3097 if (bad_blocks_filename)
3098 read_bb_file(fs, &bb_list, bad_blocks_filename);
3099 if (cflag)
3100 test_disk(fs, &bb_list);
3101 handle_bad_blocks(fs, bb_list);
3102
3103 fs->stride = fs_stride = fs->super->s_raid_stride;
3104 if (!quiet)
3105 printf("%s", _("Allocating group tables: "));
3106 if (ext2fs_has_feature_flex_bg(fs->super) &&
3107 packed_meta_blocks)
3108 retval = packed_allocate_tables(fs);
3109 else
3110 retval = ext2fs_allocate_tables(fs);
3111 if (retval) {
3112 com_err(program_name, retval, "%s",
3113 _("while trying to allocate filesystem tables"));
3114 exit(1);
3115 }
3116 if (!quiet)
3117 printf("%s", _("done \n"));
3118
3119 retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
3120 if (retval) {
3121 com_err(program_name, retval, "%s",
3122 _("\n\twhile converting subcluster bitmap"));
3123 exit(1);
3124 }
3125
3126 if (super_only) {
3127 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
3128 printf(_("%s may be further corrupted by superblock rewrite\n"),
3129 device_name);
3130 if (!force)
3131 proceed_question(proceed_delay);
3132 fs->super->s_state |= EXT2_ERROR_FS;
3133 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
3134 /*
3135 * The command "mke2fs -S" is used to recover
3136 * corrupted file systems, so do not mark any of the
3137 * inodes as unused; we want e2fsck to consider all
3138 * inodes as potentially containing recoverable data.
3139 */
3140 if (ext2fs_has_group_desc_csum(fs)) {
3141 for (i = 0; i < fs->group_desc_count; i++)
3142 ext2fs_bg_itable_unused_set(fs, i, 0);
3143 }
3144 } else {
3145 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
3146 blk64_t rsv = 65536 / fs->blocksize;
3147 blk64_t blocks = ext2fs_blocks_count(fs->super);
3148 blk64_t start;
3149 blk64_t ret_blk;
3150
3151 #ifdef ZAP_BOOTBLOCK
3152 zap_sector(fs, 0, 2);
3153 #endif
3154
3155 /*
3156 * Wipe out any old MD RAID (or other) metadata at the end
3157 * of the device. This will also verify that the device is
3158 * as large as we think. Be careful with very small devices.
3159 */
3160 start = (blocks & ~(rsv - 1));
3161 if (start > rsv)
3162 start -= rsv;
3163 if (start > 0)
3164 retval = ext2fs_zero_blocks2(fs, start, blocks - start,
3165 &ret_blk, NULL);
3166
3167 if (retval) {
3168 com_err(program_name, retval,
3169 _("while zeroing block %llu at end of filesystem"),
3170 ret_blk);
3171 }
3172 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
3173 create_root_dir(fs);
3174 create_lost_and_found(fs);
3175 reserve_inodes(fs);
3176 create_bad_block_inode(fs, bb_list);
3177 if (ext2fs_has_feature_resize_inode(fs->super)) {
3178 retval = ext2fs_create_resize_inode(fs);
3179 if (retval) {
3180 com_err("ext2fs_create_resize_inode", retval,
3181 "%s",
3182 _("while reserving blocks for online resize"));
3183 exit(1);
3184 }
3185 }
3186 }
3187
3188 if (journal_device) {
3189 ext2_filsys jfs;
3190
3191 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
3192 NULL) && !force)
3193 proceed_question(proceed_delay);
3194 check_mount(journal_device, force, _("journal"));
3195
3196 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
3197 EXT2_FLAG_JOURNAL_DEV_OK, 0,
3198 fs->blocksize, unix_io_manager, &jfs);
3199 if (retval) {
3200 com_err(program_name, retval,
3201 _("while trying to open journal device %s\n"),
3202 journal_device);
3203 exit(1);
3204 }
3205 if (!quiet) {
3206 printf(_("Adding journal to device %s: "),
3207 journal_device);
3208 fflush(stdout);
3209 }
3210 retval = ext2fs_add_journal_device(fs, jfs);
3211 if(retval) {
3212 com_err (program_name, retval,
3213 _("\n\twhile trying to add journal to device %s"),
3214 journal_device);
3215 exit(1);
3216 }
3217 if (!quiet)
3218 printf("%s", _("done\n"));
3219 ext2fs_close_free(&jfs);
3220 free(journal_device);
3221 } else if ((journal_size) ||
3222 ext2fs_has_feature_journal(&fs_param)) {
3223 if (super_only) {
3224 printf("%s", _("Skipping journal creation in super-only mode\n"));
3225 fs->super->s_journal_inum = EXT2_JOURNAL_INO;
3226 goto no_journal;
3227 }
3228
3229 if (!journal_blocks) {
3230 ext2fs_clear_feature_journal(fs->super);
3231 goto no_journal;
3232 }
3233 if (!quiet) {
3234 printf(_("Creating journal (%u blocks): "),
3235 journal_blocks);
3236 fflush(stdout);
3237 }
3238 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
3239 journal_location,
3240 journal_flags);
3241 if (retval) {
3242 com_err(program_name, retval, "%s",
3243 _("\n\twhile trying to create journal"));
3244 exit(1);
3245 }
3246 if (!quiet)
3247 printf("%s", _("done\n"));
3248 }
3249 no_journal:
3250 if (!super_only &&
3251 ext2fs_has_feature_mmp(fs->super)) {
3252 retval = ext2fs_mmp_init(fs);
3253 if (retval) {
3254 fprintf(stderr, "%s",
3255 _("\nError while enabling multiple "
3256 "mount protection feature."));
3257 exit(1);
3258 }
3259 if (!quiet)
3260 printf(_("Multiple mount protection is enabled "
3261 "with update interval %d seconds.\n"),
3262 fs->super->s_mmp_update_interval);
3263 }
3264
3265 if (ext2fs_has_feature_bigalloc(&fs_param))
3266 fix_cluster_bg_counts(fs);
3267 if (ext2fs_has_feature_quota(&fs_param))
3268 create_quota_inodes(fs);
3269
3270 retval = mk_hugefiles(fs, device_name);
3271 if (retval)
3272 com_err(program_name, retval, "while creating huge files");
3273 /* Copy files from the specified directory */
3274 if (src_root_dir) {
3275 if (!quiet)
3276 printf("%s", _("Copying files into the device: "));
3277
3278 retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
3279 EXT2_ROOT_INO);
3280 if (retval) {
3281 com_err(program_name, retval, "%s",
3282 _("while populating file system"));
3283 exit(1);
3284 } else if (!quiet)
3285 printf("%s", _("done\n"));
3286 }
3287
3288 if (!quiet)
3289 printf("%s", _("Writing superblocks and "
3290 "filesystem accounting information: "));
3291 checkinterval = fs->super->s_checkinterval;
3292 max_mnt_count = fs->super->s_max_mnt_count;
3293 retval = ext2fs_close_free(&fs);
3294 if (retval) {
3295 fprintf(stderr, "%s",
3296 _("\nWarning, had trouble writing out superblocks.\n"));
3297 } else if (!quiet) {
3298 printf("%s", _("done\n\n"));
3299 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
3300 print_check_message(max_mnt_count, checkinterval);
3301 }
3302
3303 remove_error_table(&et_ext2_error_table);
3304 remove_error_table(&et_prof_error_table);
3305 profile_release(profile);
3306 for (i=0; fs_types[i]; i++)
3307 free(fs_types[i]);
3308 free(fs_types);
3309 return retval;
3310 }
Unnamed repository; edit this file 'description' to name the repository.