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 in Solaris */
20
21 #include <stdio.h>
22 #include <string.h>
23 #include <strings.h>
24 #include <fcntl.h>
25 #include <ctype.h>
26 #include <time.h>
27 #ifdef __linux__
28 #include <sys/utsname.h>
29 #endif
30 #ifdef HAVE_GETOPT_H
31 #include <getopt.h>
32 #else
33 extern char *optarg;
34 extern int optind;
35 #endif
36 #ifdef HAVE_UNISTD_H
37 #include <unistd.h>
38 #endif
39 #ifdef HAVE_STDLIB_H
40 #include <stdlib.h>
41 #endif
42 #ifdef HAVE_ERRNO_H
43 #include <errno.h>
44 #endif
45 #ifdef HAVE_MNTENT_H
46 #include <mntent.h>
47 #endif
48 #include <sys/ioctl.h>
49 #include <sys/types.h>
50 #include <sys/stat.h>
51 #include <libgen.h>
52 #include <limits.h>
53 #include <blkid/blkid.h>
54
55 #include "ext2fs/ext2_fs.h"
56 #include "et/com_err.h"
57 #include "uuid/uuid.h"
58 #include "e2p/e2p.h"
59 #include "ext2fs/ext2fs.h"
60 #include "util.h"
61 #include "profile.h"
62 #include "prof_err.h"
63 #include "../version.h"
64 #include "nls-enable.h"
65
66 #define STRIDE_LENGTH 8
67
68 #ifndef __sparc__
69 #define ZAP_BOOTBLOCK
70 #endif
71
72 #ifndef ROOT_SYSCONFDIR
73 #define ROOT_SYSCONFDIR "/etc"
74 #endif
75
76 extern int isatty(int);
77 extern FILE *fpopen(const char *cmd, const char *mode);
78
79 const char * program_name = "mke2fs";
80 const char * device_name /* = NULL */;
81
82 /* Command line options */
83 int cflag;
84 int verbose;
85 int quiet;
86 int super_only;
87 int discard = 1; /* attempt to discard device before fs creation */
88 int force;
89 int noaction;
90 int journal_size;
91 int journal_flags;
92 int lazy_itable_init;
93 char *bad_blocks_filename;
94 __u32 fs_stride;
95
96 struct ext2_super_block fs_param;
97 char *fs_uuid = NULL;
98 char *creator_os;
99 char *volume_label;
100 char *mount_dir;
101 char *journal_device;
102 int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
103 char **fs_types;
104
105 profile_t profile;
106
107 int sys_page_size = 4096;
108 int linux_version_code = 0;
109
usage(void)110 static void usage(void)
111 {
112 fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
113 "[-f fragment-size]\n\t[-i bytes-per-inode] [-I inode-size] "
114 "[-J journal-options]\n"
115 "\t[-G meta group size] [-N number-of-inodes]\n"
116 "\t[-m reserved-blocks-percentage] [-o creator-os]\n"
117 "\t[-g blocks-per-group] [-L volume-label] "
118 "[-M last-mounted-directory]\n\t[-O feature[,...]] "
119 "[-r fs-revision] [-E extended-option[,...]]\n"
120 "\t[-T fs-type] [-U UUID] [-jnqvFKSV] device [blocks-count]\n"),
121 program_name);
122 exit(1);
123 }
124
int_log2(int arg)125 static int int_log2(int arg)
126 {
127 int l = 0;
128
129 arg >>= 1;
130 while (arg) {
131 l++;
132 arg >>= 1;
133 }
134 return l;
135 }
136
int_log10(unsigned int arg)137 static int int_log10(unsigned int arg)
138 {
139 int l;
140
141 for (l=0; arg ; l++)
142 arg = arg / 10;
143 return l;
144 }
145
parse_version_number(const char * s)146 static int parse_version_number(const char *s)
147 {
148 int major, minor, rev;
149 char *endptr;
150 const char *cp = s;
151
152 if (!s)
153 return 0;
154 major = strtol(cp, &endptr, 10);
155 if (cp == endptr || *endptr != '.')
156 return 0;
157 cp = endptr + 1;
158 minor = strtol(cp, &endptr, 10);
159 if (cp == endptr || *endptr != '.')
160 return 0;
161 cp = endptr + 1;
162 rev = strtol(cp, &endptr, 10);
163 if (cp == endptr)
164 return 0;
165 return ((((major * 256) + minor) * 256) + rev);
166 }
167
168 /*
169 * Helper function for read_bb_file and test_disk
170 */
invalid_block(ext2_filsys fs EXT2FS_ATTR ((unused)),blk_t blk)171 static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
172 {
173 fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
174 return;
175 }
176
177 /*
178 * Reads the bad blocks list from a file
179 */
read_bb_file(ext2_filsys fs,badblocks_list * bb_list,const char * bad_blocks_file)180 static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
181 const char *bad_blocks_file)
182 {
183 FILE *f;
184 errcode_t retval;
185
186 f = fopen(bad_blocks_file, "r");
187 if (!f) {
188 com_err("read_bad_blocks_file", errno,
189 _("while trying to open %s"), bad_blocks_file);
190 exit(1);
191 }
192 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
193 fclose (f);
194 if (retval) {
195 com_err("ext2fs_read_bb_FILE", retval,
196 _("while reading in list of bad blocks from file"));
197 exit(1);
198 }
199 }
200
201 /*
202 * Runs the badblocks program to test the disk
203 */
test_disk(ext2_filsys fs,badblocks_list * bb_list)204 static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
205 {
206 FILE *f;
207 errcode_t retval;
208 char buf[1024];
209
210 sprintf(buf, "badblocks -b %d -X %s%s%s %u", fs->blocksize,
211 quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
212 fs->device_name, fs->super->s_blocks_count-1);
213 if (verbose)
214 printf(_("Running command: %s\n"), buf);
215 f = popen(buf, "r");
216 if (!f) {
217 com_err("popen", errno,
218 _("while trying to run '%s'"), buf);
219 exit(1);
220 }
221 retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
222 pclose(f);
223 if (retval) {
224 com_err("ext2fs_read_bb_FILE", retval,
225 _("while processing list of bad blocks from program"));
226 exit(1);
227 }
228 }
229
handle_bad_blocks(ext2_filsys fs,badblocks_list bb_list)230 static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
231 {
232 dgrp_t i;
233 blk_t j;
234 unsigned must_be_good;
235 blk_t blk;
236 badblocks_iterate bb_iter;
237 errcode_t retval;
238 blk_t group_block;
239 int group;
240 int group_bad;
241
242 if (!bb_list)
243 return;
244
245 /*
246 * The primary superblock and group descriptors *must* be
247 * good; if not, abort.
248 */
249 must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
250 for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
251 if (ext2fs_badblocks_list_test(bb_list, i)) {
252 fprintf(stderr, _("Block %d in primary "
253 "superblock/group descriptor area bad.\n"), i);
254 fprintf(stderr, _("Blocks %u through %u must be good "
255 "in order to build a filesystem.\n"),
256 fs->super->s_first_data_block, must_be_good);
257 fputs(_("Aborting....\n"), stderr);
258 exit(1);
259 }
260 }
261
262 /*
263 * See if any of the bad blocks are showing up in the backup
264 * superblocks and/or group descriptors. If so, issue a
265 * warning and adjust the block counts appropriately.
266 */
267 group_block = fs->super->s_first_data_block +
268 fs->super->s_blocks_per_group;
269
270 for (i = 1; i < fs->group_desc_count; i++) {
271 group_bad = 0;
272 for (j=0; j < fs->desc_blocks+1; j++) {
273 if (ext2fs_badblocks_list_test(bb_list,
274 group_block + j)) {
275 if (!group_bad)
276 fprintf(stderr,
277 _("Warning: the backup superblock/group descriptors at block %u contain\n"
278 " bad blocks.\n\n"),
279 group_block);
280 group_bad++;
281 group = ext2fs_group_of_blk(fs, group_block+j);
282 fs->group_desc[group].bg_free_blocks_count++;
283 ext2fs_group_desc_csum_set(fs, group);
284 fs->super->s_free_blocks_count++;
285 }
286 }
287 group_block += fs->super->s_blocks_per_group;
288 }
289
290 /*
291 * Mark all the bad blocks as used...
292 */
293 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
294 if (retval) {
295 com_err("ext2fs_badblocks_list_iterate_begin", retval,
296 _("while marking bad blocks as used"));
297 exit(1);
298 }
299 while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
300 ext2fs_mark_block_bitmap(fs->block_map, blk);
301 ext2fs_badblocks_list_iterate_end(bb_iter);
302 }
303
304 /*
305 * These functions implement a generalized progress meter.
306 */
307 struct progress_struct {
308 char format[20];
309 char backup[80];
310 __u32 max;
311 int skip_progress;
312 };
313
progress_init(struct progress_struct * progress,const char * label,__u32 max)314 static void progress_init(struct progress_struct *progress,
315 const char *label,__u32 max)
316 {
317 int i;
318
319 memset(progress, 0, sizeof(struct progress_struct));
320 if (quiet)
321 return;
322
323 /*
324 * Figure out how many digits we need
325 */
326 i = int_log10(max);
327 sprintf(progress->format, "%%%dd/%%%dld", i, i);
328 memset(progress->backup, '\b', sizeof(progress->backup)-1);
329 progress->backup[sizeof(progress->backup)-1] = 0;
330 if ((2*i)+1 < (int) sizeof(progress->backup))
331 progress->backup[(2*i)+1] = 0;
332 progress->max = max;
333
334 progress->skip_progress = 0;
335 if (getenv("MKE2FS_SKIP_PROGRESS"))
336 progress->skip_progress++;
337
338 fputs(label, stdout);
339 fflush(stdout);
340 }
341
progress_update(struct progress_struct * progress,__u32 val)342 static void progress_update(struct progress_struct *progress, __u32 val)
343 {
344 if ((progress->format[0] == 0) || progress->skip_progress)
345 return;
346 printf(progress->format, val, progress->max);
347 fputs(progress->backup, stdout);
348 }
349
progress_close(struct progress_struct * progress)350 static void progress_close(struct progress_struct *progress)
351 {
352 if (progress->format[0] == 0)
353 return;
354 fputs(_("done \n"), stdout);
355 }
356
write_inode_tables(ext2_filsys fs,int lazy_flag,int itable_zeroed)357 static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
358 {
359 errcode_t retval;
360 blk_t blk;
361 dgrp_t i;
362 int num, ipb;
363 struct progress_struct progress;
364
365 if (quiet)
366 memset(&progress, 0, sizeof(progress));
367 else
368 progress_init(&progress, _("Writing inode tables: "),
369 fs->group_desc_count);
370
371 for (i = 0; i < fs->group_desc_count; i++) {
372 progress_update(&progress, i);
373
374 blk = fs->group_desc[i].bg_inode_table;
375 num = fs->inode_blocks_per_group;
376
377 if (lazy_flag) {
378 ipb = fs->blocksize / EXT2_INODE_SIZE(fs->super);
379 num = ((((fs->super->s_inodes_per_group -
380 fs->group_desc[i].bg_itable_unused) *
381 EXT2_INODE_SIZE(fs->super)) +
382 EXT2_BLOCK_SIZE(fs->super) - 1) /
383 EXT2_BLOCK_SIZE(fs->super));
384 }
385 if (!lazy_flag || itable_zeroed) {
386 /* The kernel doesn't need to zero the itable blocks */
387 fs->group_desc[i].bg_flags |= EXT2_BG_INODE_ZEROED;
388 ext2fs_group_desc_csum_set(fs, i);
389 }
390 retval = ext2fs_zero_blocks(fs, blk, num, &blk, &num);
391 if (retval) {
392 fprintf(stderr, _("\nCould not write %d "
393 "blocks in inode table starting at %u: %s\n"),
394 num, blk, error_message(retval));
395 exit(1);
396 }
397 if (sync_kludge) {
398 if (sync_kludge == 1)
399 sync();
400 else if ((i % sync_kludge) == 0)
401 sync();
402 }
403 }
404 ext2fs_zero_blocks(0, 0, 0, 0, 0);
405 progress_close(&progress);
406 }
407
create_root_dir(ext2_filsys fs)408 static void create_root_dir(ext2_filsys fs)
409 {
410 errcode_t retval;
411 struct ext2_inode inode;
412 __u32 uid, gid;
413
414 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
415 if (retval) {
416 com_err("ext2fs_mkdir", retval, _("while creating root dir"));
417 exit(1);
418 }
419 if (geteuid()) {
420 retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
421 if (retval) {
422 com_err("ext2fs_read_inode", retval,
423 _("while reading root inode"));
424 exit(1);
425 }
426 uid = getuid();
427 inode.i_uid = uid;
428 ext2fs_set_i_uid_high(inode, uid >> 16);
429 if (uid) {
430 gid = getgid();
431 inode.i_gid = gid;
432 ext2fs_set_i_gid_high(inode, gid >> 16);
433 }
434 retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
435 if (retval) {
436 com_err("ext2fs_write_inode", retval,
437 _("while setting root inode ownership"));
438 exit(1);
439 }
440 }
441 }
442
create_lost_and_found(ext2_filsys fs)443 static void create_lost_and_found(ext2_filsys fs)
444 {
445 unsigned int lpf_size = 0;
446 errcode_t retval;
447 ext2_ino_t ino;
448 const char *name = "lost+found";
449 int i;
450
451 fs->umask = 077;
452 retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
453 if (retval) {
454 com_err("ext2fs_mkdir", retval,
455 _("while creating /lost+found"));
456 exit(1);
457 }
458
459 retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
460 if (retval) {
461 com_err("ext2_lookup", retval,
462 _("while looking up /lost+found"));
463 exit(1);
464 }
465
466 for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
467 /* Ensure that lost+found is at least 2 blocks, so we always
468 * test large empty blocks for big-block filesystems. */
469 if ((lpf_size += fs->blocksize) >= 16*1024 &&
470 lpf_size >= 2 * fs->blocksize)
471 break;
472 retval = ext2fs_expand_dir(fs, ino);
473 if (retval) {
474 com_err("ext2fs_expand_dir", retval,
475 _("while expanding /lost+found"));
476 exit(1);
477 }
478 }
479 }
480
create_bad_block_inode(ext2_filsys fs,badblocks_list bb_list)481 static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
482 {
483 errcode_t retval;
484
485 ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_BAD_INO);
486 ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
487 retval = ext2fs_update_bb_inode(fs, bb_list);
488 if (retval) {
489 com_err("ext2fs_update_bb_inode", retval,
490 _("while setting bad block inode"));
491 exit(1);
492 }
493
494 }
495
reserve_inodes(ext2_filsys fs)496 static void reserve_inodes(ext2_filsys fs)
497 {
498 ext2_ino_t i;
499
500 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
501 ext2fs_inode_alloc_stats2(fs, i, +1, 0);
502 ext2fs_mark_ib_dirty(fs);
503 }
504
505 #define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */
506 #define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */
507 #define BSD_LABEL_OFFSET 64
508
zap_sector(ext2_filsys fs,int sect,int nsect)509 static void zap_sector(ext2_filsys fs, int sect, int nsect)
510 {
511 char *buf;
512 int retval;
513 unsigned int *magic;
514
515 buf = malloc(512*nsect);
516 if (!buf) {
517 printf(_("Out of memory erasing sectors %d-%d\n"),
518 sect, sect + nsect - 1);
519 exit(1);
520 }
521
522 if (sect == 0) {
523 /* Check for a BSD disklabel, and don't erase it if so */
524 retval = io_channel_read_blk(fs->io, 0, -512, buf);
525 if (retval)
526 fprintf(stderr,
527 _("Warning: could not read block 0: %s\n"),
528 error_message(retval));
529 else {
530 magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
531 if ((*magic == BSD_DISKMAGIC) ||
532 (*magic == BSD_MAGICDISK))
533 return;
534 }
535 }
536
537 memset(buf, 0, 512*nsect);
538 io_channel_set_blksize(fs->io, 512);
539 retval = io_channel_write_blk(fs->io, sect, -512*nsect, buf);
540 io_channel_set_blksize(fs->io, fs->blocksize);
541 free(buf);
542 if (retval)
543 fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
544 sect, error_message(retval));
545 }
546
create_journal_dev(ext2_filsys fs)547 static void create_journal_dev(ext2_filsys fs)
548 {
549 struct progress_struct progress;
550 errcode_t retval;
551 char *buf;
552 blk_t blk, err_blk;
553 int c, count, err_count;
554
555 retval = ext2fs_create_journal_superblock(fs,
556 fs->super->s_blocks_count, 0, &buf);
557 if (retval) {
558 com_err("create_journal_dev", retval,
559 _("while initializing journal superblock"));
560 exit(1);
561 }
562 if (quiet)
563 memset(&progress, 0, sizeof(progress));
564 else
565 progress_init(&progress, _("Zeroing journal device: "),
566 fs->super->s_blocks_count);
567
568 blk = 0;
569 count = fs->super->s_blocks_count;
570 while (count > 0) {
571 if (count > 1024)
572 c = 1024;
573 else
574 c = count;
575 retval = ext2fs_zero_blocks(fs, blk, c, &err_blk, &err_count);
576 if (retval) {
577 com_err("create_journal_dev", retval,
578 _("while zeroing journal device "
579 "(block %u, count %d)"),
580 err_blk, err_count);
581 exit(1);
582 }
583 blk += c;
584 count -= c;
585 progress_update(&progress, blk);
586 }
587 ext2fs_zero_blocks(0, 0, 0, 0, 0);
588
589 retval = io_channel_write_blk(fs->io,
590 fs->super->s_first_data_block+1,
591 1, buf);
592 if (retval) {
593 com_err("create_journal_dev", retval,
594 _("while writing journal superblock"));
595 exit(1);
596 }
597 progress_close(&progress);
598 }
599
show_stats(ext2_filsys fs)600 static void show_stats(ext2_filsys fs)
601 {
602 struct ext2_super_block *s = fs->super;
603 char buf[80];
604 char *os;
605 blk_t group_block;
606 dgrp_t i;
607 int need, col_left;
608
609 if (fs_param.s_blocks_count != s->s_blocks_count)
610 fprintf(stderr, _("warning: %u blocks unused.\n\n"),
611 fs_param.s_blocks_count - s->s_blocks_count);
612
613 memset(buf, 0, sizeof(buf));
614 strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
615 printf(_("Filesystem label=%s\n"), buf);
616 fputs(_("OS type: "), stdout);
617 os = e2p_os2string(fs->super->s_creator_os);
618 fputs(os, stdout);
619 free(os);
620 printf("\n");
621 printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
622 s->s_log_block_size);
623 printf(_("Fragment size=%u (log=%u)\n"), fs->fragsize,
624 s->s_log_frag_size);
625 printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
626 s->s_raid_stride, s->s_raid_stripe_width);
627 printf(_("%u inodes, %u blocks\n"), s->s_inodes_count,
628 s->s_blocks_count);
629 printf(_("%u blocks (%2.2f%%) reserved for the super user\n"),
630 s->s_r_blocks_count,
631 100.0 * s->s_r_blocks_count / s->s_blocks_count);
632 printf(_("First data block=%u\n"), s->s_first_data_block);
633 if (s->s_reserved_gdt_blocks)
634 printf(_("Maximum filesystem blocks=%lu\n"),
635 (s->s_reserved_gdt_blocks + fs->desc_blocks) *
636 EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
637 if (fs->group_desc_count > 1)
638 printf(_("%u block groups\n"), fs->group_desc_count);
639 else
640 printf(_("%u block group\n"), fs->group_desc_count);
641 printf(_("%u blocks per group, %u fragments per group\n"),
642 s->s_blocks_per_group, s->s_frags_per_group);
643 printf(_("%u inodes per group\n"), s->s_inodes_per_group);
644
645 if (fs->group_desc_count == 1) {
646 printf("\n");
647 return;
648 }
649
650 printf(_("Superblock backups stored on blocks: "));
651 group_block = s->s_first_data_block;
652 col_left = 0;
653 for (i = 1; i < fs->group_desc_count; i++) {
654 group_block += s->s_blocks_per_group;
655 if (!ext2fs_bg_has_super(fs, i))
656 continue;
657 if (i != 1)
658 printf(", ");
659 need = int_log10(group_block) + 2;
660 if (need > col_left) {
661 printf("\n\t");
662 col_left = 72;
663 }
664 col_left -= need;
665 printf("%u", group_block);
666 }
667 printf("\n\n");
668 }
669
670 /*
671 * Set the S_CREATOR_OS field. Return true if OS is known,
672 * otherwise, 0.
673 */
set_os(struct ext2_super_block * sb,char * os)674 static int set_os(struct ext2_super_block *sb, char *os)
675 {
676 if (isdigit (*os))
677 sb->s_creator_os = atoi (os);
678 else if (strcasecmp(os, "linux") == 0)
679 sb->s_creator_os = EXT2_OS_LINUX;
680 else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
681 sb->s_creator_os = EXT2_OS_HURD;
682 else if (strcasecmp(os, "freebsd") == 0)
683 sb->s_creator_os = EXT2_OS_FREEBSD;
684 else if (strcasecmp(os, "lites") == 0)
685 sb->s_creator_os = EXT2_OS_LITES;
686 else
687 return 0;
688 return 1;
689 }
690
691 #define PATH_SET "PATH=/sbin"
692
parse_extended_opts(struct ext2_super_block * param,const char * opts)693 static void parse_extended_opts(struct ext2_super_block *param,
694 const char *opts)
695 {
696 char *buf, *token, *next, *p, *arg, *badopt = 0;
697 int len;
698 int r_usage = 0;
699
700 len = strlen(opts);
701 buf = malloc(len+1);
702 if (!buf) {
703 fprintf(stderr,
704 _("Couldn't allocate memory to parse options!\n"));
705 exit(1);
706 }
707 strcpy(buf, opts);
708 for (token = buf; token && *token; token = next) {
709 p = strchr(token, ',');
710 next = 0;
711 if (p) {
712 *p = 0;
713 next = p+1;
714 }
715 arg = strchr(token, '=');
716 if (arg) {
717 *arg = 0;
718 arg++;
719 }
720 if (strcmp(token, "stride") == 0) {
721 if (!arg) {
722 r_usage++;
723 badopt = token;
724 continue;
725 }
726 param->s_raid_stride = strtoul(arg, &p, 0);
727 if (*p || (param->s_raid_stride == 0)) {
728 fprintf(stderr,
729 _("Invalid stride parameter: %s\n"),
730 arg);
731 r_usage++;
732 continue;
733 }
734 } else if (strcmp(token, "stripe-width") == 0 ||
735 strcmp(token, "stripe_width") == 0) {
736 if (!arg) {
737 r_usage++;
738 badopt = token;
739 continue;
740 }
741 param->s_raid_stripe_width = strtoul(arg, &p, 0);
742 if (*p || (param->s_raid_stripe_width == 0)) {
743 fprintf(stderr,
744 _("Invalid stripe-width parameter: %s\n"),
745 arg);
746 r_usage++;
747 continue;
748 }
749 } else if (!strcmp(token, "resize")) {
750 unsigned long resize, bpg, rsv_groups;
751 unsigned long group_desc_count, desc_blocks;
752 unsigned int gdpb, blocksize;
753 int rsv_gdb;
754
755 if (!arg) {
756 r_usage++;
757 badopt = token;
758 continue;
759 }
760
761 resize = parse_num_blocks(arg,
762 param->s_log_block_size);
763
764 if (resize == 0) {
765 fprintf(stderr,
766 _("Invalid resize parameter: %s\n"),
767 arg);
768 r_usage++;
769 continue;
770 }
771 if (resize <= param->s_blocks_count) {
772 fprintf(stderr,
773 _("The resize maximum must be greater "
774 "than the filesystem size.\n"));
775 r_usage++;
776 continue;
777 }
778
779 blocksize = EXT2_BLOCK_SIZE(param);
780 bpg = param->s_blocks_per_group;
781 if (!bpg)
782 bpg = blocksize * 8;
783 gdpb = EXT2_DESC_PER_BLOCK(param);
784 group_desc_count =
785 ext2fs_div_ceil(param->s_blocks_count, bpg);
786 desc_blocks = (group_desc_count +
787 gdpb - 1) / gdpb;
788 rsv_groups = ext2fs_div_ceil(resize, bpg);
789 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
790 desc_blocks;
791 if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
792 rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
793
794 if (rsv_gdb > 0) {
795 if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
796 fprintf(stderr,
797 _("On-line resizing not supported with revision 0 filesystems\n"));
798 free(buf);
799 exit(1);
800 }
801 param->s_feature_compat |=
802 EXT2_FEATURE_COMPAT_RESIZE_INODE;
803
804 param->s_reserved_gdt_blocks = rsv_gdb;
805 }
806 } else if (!strcmp(token, "test_fs")) {
807 param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
808 } else if (!strcmp(token, "lazy_itable_init")) {
809 if (arg)
810 lazy_itable_init = strtoul(arg, &p, 0);
811 else
812 lazy_itable_init = 1;
813 } else if (!strcmp(token, "discard")) {
814 discard = 1;
815 } else if (!strcmp(token, "nodiscard")) {
816 discard = 0;
817 } else {
818 r_usage++;
819 badopt = token;
820 }
821 }
822 if (r_usage) {
823 fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
824 "Extended options are separated by commas, "
825 "and may take an argument which\n"
826 "\tis set off by an equals ('=') sign.\n\n"
827 "Valid extended options are:\n"
828 "\tstride=<RAID per-disk data chunk in blocks>\n"
829 "\tstripe-width=<RAID stride * data disks in blocks>\n"
830 "\tresize=<resize maximum size in blocks>\n"
831 "\tlazy_itable_init=<0 to disable, 1 to enable>\n"
832 "\ttest_fs\n"
833 "\tdiscard\n"
834 "\tnodiscard\n\n"),
835 badopt ? badopt : "");
836 free(buf);
837 exit(1);
838 }
839 if (param->s_raid_stride &&
840 (param->s_raid_stripe_width % param->s_raid_stride) != 0)
841 fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
842 "multiple of stride %u.\n\n"),
843 param->s_raid_stripe_width, param->s_raid_stride);
844
845 free(buf);
846 }
847
848 static __u32 ok_features[3] = {
849 /* Compat */
850 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
851 EXT2_FEATURE_COMPAT_RESIZE_INODE |
852 EXT2_FEATURE_COMPAT_DIR_INDEX |
853 EXT2_FEATURE_COMPAT_EXT_ATTR,
854 /* Incompat */
855 EXT2_FEATURE_INCOMPAT_FILETYPE|
856 EXT3_FEATURE_INCOMPAT_EXTENTS|
857 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
858 EXT2_FEATURE_INCOMPAT_META_BG|
859 EXT4_FEATURE_INCOMPAT_FLEX_BG,
860 /* R/O compat */
861 EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
862 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
863 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
864 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
865 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
866 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
867 };
868
869
syntax_err_report(const char * filename,long err,int line_num)870 static void syntax_err_report(const char *filename, long err, int line_num)
871 {
872 fprintf(stderr,
873 _("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
874 filename, line_num, error_message(err));
875 exit(1);
876 }
877
878 static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
879
edit_feature(const char * str,__u32 * compat_array)880 static void edit_feature(const char *str, __u32 *compat_array)
881 {
882 if (!str)
883 return;
884
885 if (e2p_edit_feature(str, compat_array, ok_features)) {
886 fprintf(stderr, _("Invalid filesystem option set: %s\n"),
887 str);
888 exit(1);
889 }
890 }
891
892 struct str_list {
893 char **list;
894 int num;
895 int max;
896 };
897
init_list(struct str_list * sl)898 static errcode_t init_list(struct str_list *sl)
899 {
900 sl->num = 0;
901 sl->max = 0;
902 sl->list = malloc((sl->max+1) * sizeof(char *));
903 if (!sl->list)
904 return ENOMEM;
905 sl->list[0] = 0;
906 return 0;
907 }
908
push_string(struct str_list * sl,const char * str)909 static errcode_t push_string(struct str_list *sl, const char *str)
910 {
911 char **new_list;
912
913 if (sl->num >= sl->max) {
914 sl->max += 2;
915 new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
916 if (!new_list)
917 return ENOMEM;
918 sl->list = new_list;
919 }
920 sl->list[sl->num] = malloc(strlen(str)+1);
921 if (sl->list[sl->num] == 0)
922 return ENOMEM;
923 strcpy(sl->list[sl->num], str);
924 sl->num++;
925 sl->list[sl->num] = 0;
926 return 0;
927 }
928
print_str_list(char ** list)929 static void print_str_list(char **list)
930 {
931 char **cpp;
932
933 for (cpp = list; *cpp; cpp++) {
934 printf("'%s'", *cpp);
935 if (cpp[1])
936 fputs(", ", stdout);
937 }
938 fputc('\n', stdout);
939 }
940
941 /*
942 * Return TRUE if the profile has the given subsection
943 */
profile_has_subsection(profile_t profile,const char * section,const char * subsection)944 static int profile_has_subsection(profile_t profile, const char *section,
945 const char *subsection)
946 {
947 void *state;
948 const char *names[4];
949 char *name;
950 int ret = 0;
951
952 names[0] = section;
953 names[1] = subsection;
954 names[2] = 0;
955
956 if (profile_iterator_create(profile, names,
957 PROFILE_ITER_LIST_SECTION |
958 PROFILE_ITER_RELATIONS_ONLY, &state))
959 return 0;
960
961 if ((profile_iterator(&state, &name, 0) == 0) && name) {
962 free(name);
963 ret = 1;
964 }
965
966 profile_iterator_free(&state);
967 return ret;
968 }
969
parse_fs_type(const char * fs_type,const char * usage_types,struct ext2_super_block * fs_param,char * progname)970 static char **parse_fs_type(const char *fs_type,
971 const char *usage_types,
972 struct ext2_super_block *fs_param,
973 char *progname)
974 {
975 const char *ext_type = 0;
976 char *parse_str;
977 char *profile_type = 0;
978 char *cp, *t;
979 const char *size_type;
980 struct str_list list;
981 unsigned long meg;
982 int is_hurd = 0;
983
984 if (init_list(&list))
985 return 0;
986
987 if (creator_os && (!strcasecmp(creator_os, "GNU") ||
988 !strcasecmp(creator_os, "hurd")))
989 is_hurd = 1;
990
991 if (fs_type)
992 ext_type = fs_type;
993 else if (is_hurd)
994 ext_type = "ext2";
995 else if (!strcmp(program_name, "mke3fs"))
996 ext_type = "ext3";
997 else if (progname) {
998 ext_type = strrchr(progname, '/');
999 if (ext_type)
1000 ext_type++;
1001 else
1002 ext_type = progname;
1003
1004 if (!strncmp(ext_type, "mkfs.", 5)) {
1005 ext_type += 5;
1006 if (ext_type[0] == 0)
1007 ext_type = 0;
1008 } else
1009 ext_type = 0;
1010 }
1011
1012 if (!ext_type) {
1013 profile_get_string(profile, "defaults", "fs_type", 0,
1014 "ext2", &profile_type);
1015 ext_type = profile_type;
1016 if (!strcmp(ext_type, "ext2") && (journal_size != 0))
1017 ext_type = "ext3";
1018 }
1019
1020
1021 if (!profile_has_subsection(profile, "fs_types", ext_type) &&
1022 strcmp(ext_type, "ext2")) {
1023 printf(_("\nYour mke2fs.conf file does not define the "
1024 "%s filesystem type.\n"), ext_type);
1025 if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
1026 !strcmp(ext_type, "ext4dev")) {
1027 printf(_("You probably need to install an updated "
1028 "mke2fs.conf file.\n\n"));
1029 }
1030 if (!force) {
1031 printf(_("Aborting...\n"));
1032 exit(1);
1033 }
1034 }
1035
1036 meg = (1024 * 1024) / EXT2_BLOCK_SIZE(fs_param);
1037 if (fs_param->s_blocks_count < 3 * meg)
1038 size_type = "floppy";
1039 else if (fs_param->s_blocks_count < 512 * meg)
1040 size_type = "small";
1041 else
1042 size_type = "default";
1043
1044 if (!usage_types)
1045 usage_types = size_type;
1046
1047 parse_str = malloc(usage_types ? strlen(usage_types)+1 : 1);
1048 if (!parse_str) {
1049 free(list.list);
1050 return 0;
1051 }
1052 if (usage_types)
1053 strcpy(parse_str, usage_types);
1054 else
1055 *parse_str = '\0';
1056
1057 if (ext_type)
1058 push_string(&list, ext_type);
1059 cp = parse_str;
1060 while (1) {
1061 t = strchr(cp, ',');
1062 if (t)
1063 *t = '\0';
1064
1065 if (*cp) {
1066 if (profile_has_subsection(profile, "fs_types", cp))
1067 push_string(&list, cp);
1068 else if (strcmp(cp, "default") != 0)
1069 fprintf(stderr,
1070 _("\nWarning: the fs_type %s is not "
1071 "defined in mke2fs.conf\n\n"),
1072 cp);
1073 }
1074 if (t)
1075 cp = t+1;
1076 else {
1077 cp = "";
1078 break;
1079 }
1080 }
1081 free(parse_str);
1082 free(profile_type);
1083 if (is_hurd)
1084 push_string(&list, "hurd");
1085 return (list.list);
1086 }
1087
get_string_from_profile(char ** fs_types,const char * opt,const char * def_val)1088 static char *get_string_from_profile(char **fs_types, const char *opt,
1089 const char *def_val)
1090 {
1091 char *ret = 0;
1092 int i;
1093
1094 for (i=0; fs_types[i]; i++);
1095 for (i-=1; i >=0 ; i--) {
1096 profile_get_string(profile, "fs_types", fs_types[i],
1097 opt, 0, &ret);
1098 if (ret)
1099 return ret;
1100 }
1101 profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
1102 return (ret);
1103 }
1104
get_int_from_profile(char ** fs_types,const char * opt,int def_val)1105 static int get_int_from_profile(char **fs_types, const char *opt, int def_val)
1106 {
1107 int ret;
1108 char **cpp;
1109
1110 profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
1111 for (cpp = fs_types; *cpp; cpp++)
1112 profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
1113 return ret;
1114 }
1115
get_bool_from_profile(char ** fs_types,const char * opt,int def_val)1116 static int get_bool_from_profile(char **fs_types, const char *opt, int def_val)
1117 {
1118 int ret;
1119 char **cpp;
1120
1121 profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
1122 for (cpp = fs_types; *cpp; cpp++)
1123 profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
1124 return ret;
1125 }
1126
1127 extern const char *mke2fs_default_profile;
1128 static const char *default_files[] = { "<default>", 0 };
1129
1130 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1131 /*
1132 * Sets the geometry of a device (stripe/stride), and returns the
1133 * device's alignment offset, if any, or a negative error.
1134 */
get_device_geometry(const char * file,struct ext2_super_block * fs_param,int psector_size)1135 static int get_device_geometry(const char *file,
1136 struct ext2_super_block *fs_param,
1137 int psector_size)
1138 {
1139 int rc = -1;
1140 int blocksize;
1141 blkid_probe pr;
1142 blkid_topology tp;
1143 unsigned long min_io;
1144 unsigned long opt_io;
1145 struct stat statbuf;
1146
1147 /* Nothing to do for a regular file */
1148 if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
1149 return 0;
1150
1151 pr = blkid_new_probe_from_filename(file);
1152 if (!pr)
1153 goto out;
1154
1155 tp = blkid_probe_get_topology(pr);
1156 if (!tp)
1157 goto out;
1158
1159 min_io = blkid_topology_get_minimum_io_size(tp);
1160 opt_io = blkid_topology_get_optimal_io_size(tp);
1161 blocksize = EXT2_BLOCK_SIZE(fs_param);
1162 if ((min_io == 0) && (psector_size > blocksize))
1163 min_io = psector_size;
1164 if ((opt_io == 0) && min_io)
1165 opt_io = min_io;
1166 if ((opt_io == 0) && (psector_size > blocksize))
1167 opt_io = psector_size;
1168
1169 fs_param->s_raid_stride = min_io / blocksize;
1170 fs_param->s_raid_stripe_width = opt_io / blocksize;
1171
1172 rc = blkid_topology_get_alignment_offset(tp);
1173 out:
1174 blkid_free_probe(pr);
1175 return rc;
1176 }
1177 #endif
1178
PRS(int argc,char * argv[])1179 static void PRS(int argc, char *argv[])
1180 {
1181 int b, c;
1182 int size;
1183 char *tmp, **cpp;
1184 int blocksize = 0;
1185 int inode_ratio = 0;
1186 int inode_size = 0;
1187 unsigned long flex_bg_size = 0;
1188 double reserved_ratio = 5.0;
1189 int lsector_size = 0, psector_size = 0;
1190 int show_version_only = 0;
1191 unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
1192 errcode_t retval;
1193 char * oldpath = getenv("PATH");
1194 char * extended_opts = 0;
1195 const char * fs_type = 0;
1196 const char * usage_types = 0;
1197 blk_t dev_size;
1198 #ifdef __linux__
1199 struct utsname ut;
1200 #endif
1201 long sysval;
1202 int s_opt = -1, r_opt = -1;
1203 char *fs_features = 0;
1204 int use_bsize;
1205 char *newpath;
1206 int pathlen = sizeof(PATH_SET) + 1;
1207
1208 if (oldpath)
1209 pathlen += strlen(oldpath);
1210 newpath = malloc(pathlen);
1211 strcpy(newpath, PATH_SET);
1212
1213 /* Update our PATH to include /sbin */
1214 if (oldpath) {
1215 strcat (newpath, ":");
1216 strcat (newpath, oldpath);
1217 }
1218 putenv (newpath);
1219
1220 tmp = getenv("MKE2FS_SYNC");
1221 if (tmp)
1222 sync_kludge = atoi(tmp);
1223
1224 /* Determine the system page size if possible */
1225 #ifdef HAVE_SYSCONF
1226 #if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
1227 #define _SC_PAGESIZE _SC_PAGE_SIZE
1228 #endif
1229 #ifdef _SC_PAGESIZE
1230 sysval = sysconf(_SC_PAGESIZE);
1231 if (sysval > 0)
1232 sys_page_size = sysval;
1233 #endif /* _SC_PAGESIZE */
1234 #endif /* HAVE_SYSCONF */
1235
1236 if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
1237 config_fn[0] = tmp;
1238 profile_set_syntax_err_cb(syntax_err_report);
1239 retval = profile_init(config_fn, &profile);
1240 if (retval == ENOENT) {
1241 profile_init(default_files, &profile);
1242 profile_set_default(profile, mke2fs_default_profile);
1243 }
1244
1245 setbuf(stdout, NULL);
1246 setbuf(stderr, NULL);
1247 add_error_table(&et_ext2_error_table);
1248 add_error_table(&et_prof_error_table);
1249 memset(&fs_param, 0, sizeof(struct ext2_super_block));
1250 fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */
1251
1252 #ifdef __linux__
1253 if (uname(&ut)) {
1254 perror("uname");
1255 exit(1);
1256 }
1257 linux_version_code = parse_version_number(ut.release);
1258 if (linux_version_code && linux_version_code < (2*65536 + 2*256))
1259 fs_param.s_rev_level = 0;
1260 #endif
1261
1262 if (argc && *argv) {
1263 program_name = get_progname(*argv);
1264
1265 /* If called as mkfs.ext3, create a journal inode */
1266 if (!strcmp(program_name, "mkfs.ext3") ||
1267 !strcmp(program_name, "mke3fs"))
1268 journal_size = -1;
1269 }
1270
1271 while ((c = getopt (argc, argv,
1272 "b:cf:g:G:i:jl:m:no:qr:s:t:vE:FI:J:KL:M:N:O:R:ST:U:V")) != EOF) {
1273 switch (c) {
1274 case 'b':
1275 blocksize = strtol(optarg, &tmp, 0);
1276 b = (blocksize > 0) ? blocksize : -blocksize;
1277 if (b < EXT2_MIN_BLOCK_SIZE ||
1278 b > EXT2_MAX_BLOCK_SIZE || *tmp) {
1279 com_err(program_name, 0,
1280 _("invalid block size - %s"), optarg);
1281 exit(1);
1282 }
1283 if (blocksize > 4096)
1284 fprintf(stderr, _("Warning: blocksize %d not "
1285 "usable on most systems.\n"),
1286 blocksize);
1287 if (blocksize > 0)
1288 fs_param.s_log_block_size =
1289 int_log2(blocksize >>
1290 EXT2_MIN_BLOCK_LOG_SIZE);
1291 break;
1292 case 'c': /* Check for bad blocks */
1293 cflag++;
1294 break;
1295 case 'f':
1296 size = strtoul(optarg, &tmp, 0);
1297 if (size < EXT2_MIN_BLOCK_SIZE ||
1298 size > EXT2_MAX_BLOCK_SIZE || *tmp) {
1299 com_err(program_name, 0,
1300 _("invalid fragment size - %s"),
1301 optarg);
1302 exit(1);
1303 }
1304 fs_param.s_log_frag_size =
1305 int_log2(size >> EXT2_MIN_BLOCK_LOG_SIZE);
1306 fprintf(stderr, _("Warning: fragments not supported. "
1307 "Ignoring -f option\n"));
1308 break;
1309 case 'g':
1310 fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
1311 if (*tmp) {
1312 com_err(program_name, 0,
1313 _("Illegal number for blocks per group"));
1314 exit(1);
1315 }
1316 if ((fs_param.s_blocks_per_group % 8) != 0) {
1317 com_err(program_name, 0,
1318 _("blocks per group must be multiple of 8"));
1319 exit(1);
1320 }
1321 break;
1322 case 'G':
1323 flex_bg_size = strtoul(optarg, &tmp, 0);
1324 if (*tmp) {
1325 com_err(program_name, 0,
1326 _("Illegal number for flex_bg size"));
1327 exit(1);
1328 }
1329 if (flex_bg_size < 1 ||
1330 (flex_bg_size & (flex_bg_size-1)) != 0) {
1331 com_err(program_name, 0,
1332 _("flex_bg size must be a power of 2"));
1333 exit(1);
1334 }
1335 break;
1336 case 'i':
1337 inode_ratio = strtoul(optarg, &tmp, 0);
1338 if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
1339 inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024 ||
1340 *tmp) {
1341 com_err(program_name, 0,
1342 _("invalid inode ratio %s (min %d/max %d)"),
1343 optarg, EXT2_MIN_BLOCK_SIZE,
1344 EXT2_MAX_BLOCK_SIZE * 1024);
1345 exit(1);
1346 }
1347 break;
1348 case 'J':
1349 parse_journal_opts(optarg);
1350 break;
1351 case 'K':
1352 fprintf(stderr, _("Warning: -K option is deprecated and "
1353 "should not be used anymore. Use "
1354 "\'-E nodiscard\' extended option "
1355 "instead!\n"));
1356 discard = 0;
1357 break;
1358 case 'j':
1359 if (!journal_size)
1360 journal_size = -1;
1361 break;
1362 case 'l':
1363 bad_blocks_filename = malloc(strlen(optarg)+1);
1364 if (!bad_blocks_filename) {
1365 com_err(program_name, ENOMEM,
1366 _("in malloc for bad_blocks_filename"));
1367 exit(1);
1368 }
1369 strcpy(bad_blocks_filename, optarg);
1370 break;
1371 case 'm':
1372 reserved_ratio = strtod(optarg, &tmp);
1373 if ( *tmp || reserved_ratio > 50 ||
1374 reserved_ratio < 0) {
1375 com_err(program_name, 0,
1376 _("invalid reserved blocks percent - %s"),
1377 optarg);
1378 exit(1);
1379 }
1380 break;
1381 case 'n':
1382 noaction++;
1383 break;
1384 case 'o':
1385 creator_os = optarg;
1386 break;
1387 case 'q':
1388 quiet = 1;
1389 break;
1390 case 'r':
1391 r_opt = strtoul(optarg, &tmp, 0);
1392 if (*tmp) {
1393 com_err(program_name, 0,
1394 _("bad revision level - %s"), optarg);
1395 exit(1);
1396 }
1397 fs_param.s_rev_level = r_opt;
1398 break;
1399 case 's': /* deprecated */
1400 s_opt = atoi(optarg);
1401 break;
1402 case 'I':
1403 inode_size = strtoul(optarg, &tmp, 0);
1404 if (*tmp) {
1405 com_err(program_name, 0,
1406 _("invalid inode size - %s"), optarg);
1407 exit(1);
1408 }
1409 break;
1410 case 'v':
1411 verbose = 1;
1412 break;
1413 case 'F':
1414 force++;
1415 break;
1416 case 'L':
1417 volume_label = optarg;
1418 break;
1419 case 'M':
1420 mount_dir = optarg;
1421 break;
1422 case 'N':
1423 num_inodes = strtoul(optarg, &tmp, 0);
1424 if (*tmp) {
1425 com_err(program_name, 0,
1426 _("bad num inodes - %s"), optarg);
1427 exit(1);
1428 }
1429 break;
1430 case 'O':
1431 fs_features = optarg;
1432 break;
1433 case 'E':
1434 case 'R':
1435 extended_opts = optarg;
1436 break;
1437 case 'S':
1438 super_only = 1;
1439 break;
1440 case 't':
1441 fs_type = optarg;
1442 break;
1443 case 'T':
1444 usage_types = optarg;
1445 break;
1446 case 'U':
1447 fs_uuid = optarg;
1448 break;
1449 case 'V':
1450 /* Print version number and exit */
1451 show_version_only++;
1452 break;
1453 default:
1454 usage();
1455 }
1456 }
1457 if ((optind == argc) && !show_version_only)
1458 usage();
1459 device_name = argv[optind++];
1460
1461 if (!quiet || show_version_only)
1462 fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
1463 E2FSPROGS_DATE);
1464
1465 if (show_version_only) {
1466 fprintf(stderr, _("\tUsing %s\n"),
1467 error_message(EXT2_ET_BASE));
1468 exit(0);
1469 }
1470
1471 /*
1472 * If there's no blocksize specified and there is a journal
1473 * device, use it to figure out the blocksize
1474 */
1475 if (blocksize <= 0 && journal_device) {
1476 ext2_filsys jfs;
1477 io_manager io_ptr;
1478
1479 #ifdef CONFIG_TESTIO_DEBUG
1480 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1481 io_ptr = test_io_manager;
1482 test_io_backing_manager = unix_io_manager;
1483 } else
1484 #endif
1485 io_ptr = unix_io_manager;
1486 retval = ext2fs_open(journal_device,
1487 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1488 0, io_ptr, &jfs);
1489 if (retval) {
1490 com_err(program_name, retval,
1491 _("while trying to open journal device %s\n"),
1492 journal_device);
1493 exit(1);
1494 }
1495 if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
1496 com_err(program_name, 0,
1497 _("Journal dev blocksize (%d) smaller than "
1498 "minimum blocksize %d\n"), jfs->blocksize,
1499 -blocksize);
1500 exit(1);
1501 }
1502 blocksize = jfs->blocksize;
1503 printf(_("Using journal device's blocksize: %d\n"), blocksize);
1504 fs_param.s_log_block_size =
1505 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1506 ext2fs_close(jfs);
1507 }
1508
1509 if (blocksize > sys_page_size) {
1510 if (!force) {
1511 com_err(program_name, 0,
1512 _("%d-byte blocks too big for system (max %d)"),
1513 blocksize, sys_page_size);
1514 proceed_question();
1515 }
1516 fprintf(stderr, _("Warning: %d-byte blocks too big for system "
1517 "(max %d), forced to continue\n"),
1518 blocksize, sys_page_size);
1519 }
1520 if (optind < argc) {
1521 fs_param.s_blocks_count = parse_num_blocks(argv[optind++],
1522 fs_param.s_log_block_size);
1523 if (!fs_param.s_blocks_count) {
1524 com_err(program_name, 0,
1525 _("invalid blocks count '%s' on device '%s'"),
1526 argv[optind - 1], device_name);
1527 exit(1);
1528 }
1529 }
1530 if (optind < argc)
1531 usage();
1532
1533 if (!force)
1534 check_plausibility(device_name);
1535 check_mount(device_name, force, _("filesystem"));
1536
1537 fs_param.s_log_frag_size = fs_param.s_log_block_size;
1538
1539 if (noaction && fs_param.s_blocks_count) {
1540 dev_size = fs_param.s_blocks_count;
1541 retval = 0;
1542 } else {
1543 retry:
1544 retval = ext2fs_get_device_size(device_name,
1545 EXT2_BLOCK_SIZE(&fs_param),
1546 &dev_size);
1547 if ((retval == EFBIG) &&
1548 (blocksize == 0) &&
1549 (fs_param.s_log_block_size == 0)) {
1550 fs_param.s_log_block_size = 2;
1551 blocksize = 4096;
1552 goto retry;
1553 }
1554 }
1555
1556 if (retval == EFBIG) {
1557 blk64_t big_dev_size;
1558
1559 if (blocksize < 4096) {
1560 fs_param.s_log_block_size = 2;
1561 blocksize = 4096;
1562 }
1563 retval = ext2fs_get_device_size2(device_name,
1564 EXT2_BLOCK_SIZE(&fs_param), &big_dev_size);
1565 if (retval)
1566 goto get_size_failure;
1567 if (big_dev_size == (1ULL << 32)) {
1568 dev_size = (blk_t) (big_dev_size - 1);
1569 goto got_size;
1570 }
1571 fprintf(stderr, _("%s: Size of device %s too big "
1572 "to be expressed in 32 bits\n\t"
1573 "using a blocksize of %d.\n"),
1574 program_name, device_name, EXT2_BLOCK_SIZE(&fs_param));
1575 exit(1);
1576 }
1577 get_size_failure:
1578 if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
1579 com_err(program_name, retval,
1580 _("while trying to determine filesystem size"));
1581 exit(1);
1582 }
1583 got_size:
1584 if (!fs_param.s_blocks_count) {
1585 if (retval == EXT2_ET_UNIMPLEMENTED) {
1586 com_err(program_name, 0,
1587 _("Couldn't determine device size; you "
1588 "must specify\nthe size of the "
1589 "filesystem\n"));
1590 exit(1);
1591 } else {
1592 if (dev_size == 0) {
1593 com_err(program_name, 0,
1594 _("Device size reported to be zero. "
1595 "Invalid partition specified, or\n\t"
1596 "partition table wasn't reread "
1597 "after running fdisk, due to\n\t"
1598 "a modified partition being busy "
1599 "and in use. You may need to reboot\n\t"
1600 "to re-read your partition table.\n"
1601 ));
1602 exit(1);
1603 }
1604 fs_param.s_blocks_count = dev_size;
1605 if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
1606 fs_param.s_blocks_count &= ~((sys_page_size /
1607 EXT2_BLOCK_SIZE(&fs_param))-1);
1608 }
1609
1610 } else if (!force && (fs_param.s_blocks_count > dev_size)) {
1611 com_err(program_name, 0,
1612 _("Filesystem larger than apparent device size."));
1613 proceed_question();
1614 }
1615
1616 fs_types = parse_fs_type(fs_type, usage_types, &fs_param, argv[0]);
1617 if (!fs_types) {
1618 fprintf(stderr, _("Failed to parse fs types list\n"));
1619 exit(1);
1620 }
1621
1622 /* Figure out what features should be enabled */
1623
1624 tmp = NULL;
1625 if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
1626 tmp = get_string_from_profile(fs_types, "base_features",
1627 "sparse_super,filetype,resize_inode,dir_index");
1628 edit_feature(tmp, &fs_param.s_feature_compat);
1629 free(tmp);
1630
1631 for (cpp = fs_types; *cpp; cpp++) {
1632 tmp = NULL;
1633 profile_get_string(profile, "fs_types", *cpp,
1634 "features", "", &tmp);
1635 if (tmp && *tmp)
1636 edit_feature(tmp, &fs_param.s_feature_compat);
1637 free(tmp);
1638 }
1639 tmp = get_string_from_profile(fs_types, "default_features",
1640 "");
1641 }
1642 edit_feature(fs_features ? fs_features : tmp,
1643 &fs_param.s_feature_compat);
1644 free(tmp);
1645
1646 if (fs_param.s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1647 fs_types[0] = strdup("journal");
1648 fs_types[1] = 0;
1649 }
1650
1651 if (verbose) {
1652 fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
1653 print_str_list(fs_types);
1654 }
1655
1656 if (r_opt == EXT2_GOOD_OLD_REV &&
1657 (fs_param.s_feature_compat || fs_param.s_feature_incompat ||
1658 fs_param.s_feature_ro_compat)) {
1659 fprintf(stderr, _("Filesystem features not supported "
1660 "with revision 0 filesystems\n"));
1661 exit(1);
1662 }
1663
1664 if (s_opt > 0) {
1665 if (r_opt == EXT2_GOOD_OLD_REV) {
1666 fprintf(stderr, _("Sparse superblocks not supported "
1667 "with revision 0 filesystems\n"));
1668 exit(1);
1669 }
1670 fs_param.s_feature_ro_compat |=
1671 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
1672 } else if (s_opt == 0)
1673 fs_param.s_feature_ro_compat &=
1674 ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
1675
1676 if (journal_size != 0) {
1677 if (r_opt == EXT2_GOOD_OLD_REV) {
1678 fprintf(stderr, _("Journals not supported "
1679 "with revision 0 filesystems\n"));
1680 exit(1);
1681 }
1682 fs_param.s_feature_compat |=
1683 EXT3_FEATURE_COMPAT_HAS_JOURNAL;
1684 }
1685
1686 if (fs_param.s_feature_incompat &
1687 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
1688 reserved_ratio = 0;
1689 fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
1690 fs_param.s_feature_compat = 0;
1691 fs_param.s_feature_ro_compat = 0;
1692 }
1693
1694 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
1695 (fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE)) {
1696 fprintf(stderr, _("The resize_inode and meta_bg features "
1697 "are not compatible.\n"
1698 "They can not be both enabled "
1699 "simultaneously.\n"));
1700 exit(1);
1701 }
1702
1703 /* Set first meta blockgroup via an environment variable */
1704 /* (this is mostly for debugging purposes) */
1705 if ((fs_param.s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) &&
1706 ((tmp = getenv("MKE2FS_FIRST_META_BG"))))
1707 fs_param.s_first_meta_bg = atoi(tmp);
1708
1709 /* Get the hardware sector sizes, if available */
1710 retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
1711 if (retval) {
1712 com_err(program_name, retval,
1713 _("while trying to determine hardware sector size"));
1714 exit(1);
1715 }
1716 retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
1717 if (retval) {
1718 com_err(program_name, retval,
1719 _("while trying to determine physical sector size"));
1720 exit(1);
1721 }
1722
1723 if ((tmp = getenv("MKE2FS_DEVICE_SECTSIZE")) != NULL)
1724 lsector_size = atoi(tmp);
1725 if ((tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE")) != NULL)
1726 psector_size = atoi(tmp);
1727
1728 /* Older kernels may not have physical/logical distinction */
1729 if (!psector_size)
1730 psector_size = lsector_size;
1731
1732 if (blocksize <= 0) {
1733 use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
1734
1735 if (use_bsize == -1) {
1736 use_bsize = sys_page_size;
1737 if ((linux_version_code < (2*65536 + 6*256)) &&
1738 (use_bsize > 4096))
1739 use_bsize = 4096;
1740 }
1741 if (lsector_size && use_bsize < lsector_size)
1742 use_bsize = lsector_size;
1743 if ((blocksize < 0) && (use_bsize < (-blocksize)))
1744 use_bsize = -blocksize;
1745 blocksize = use_bsize;
1746 fs_param.s_blocks_count /= blocksize / 1024;
1747 } else {
1748 if (blocksize < lsector_size) { /* Impossible */
1749 com_err(program_name, EINVAL,
1750 _("while setting blocksize; too small "
1751 "for device\n"));
1752 exit(1);
1753 } else if ((blocksize < psector_size) &&
1754 (psector_size <= sys_page_size)) { /* Suboptimal */
1755 fprintf(stderr, _("Warning: specified blocksize %d is "
1756 "less than device physical sectorsize %d\n"),
1757 blocksize, psector_size);
1758 }
1759 }
1760
1761 if (inode_ratio == 0) {
1762 inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
1763 8192);
1764 if (inode_ratio < blocksize)
1765 inode_ratio = blocksize;
1766 }
1767
1768 fs_param.s_log_frag_size = fs_param.s_log_block_size =
1769 int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
1770
1771 #ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
1772 retval = get_device_geometry(device_name, &fs_param, psector_size);
1773 if (retval < 0) {
1774 fprintf(stderr,
1775 _("warning: Unable to get device geometry for %s\n"),
1776 device_name);
1777 } else if (retval) {
1778 printf(_("%s alignment is offset by %lu bytes.\n"),
1779 device_name, retval);
1780 printf(_("This may result in very poor performance, "
1781 "(re)-partitioning suggested.\n"));
1782 }
1783 #endif
1784
1785 blocksize = EXT2_BLOCK_SIZE(&fs_param);
1786
1787 lazy_itable_init = 0;
1788 if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
1789 lazy_itable_init = 1;
1790
1791 lazy_itable_init = get_bool_from_profile(fs_types,
1792 "lazy_itable_init",
1793 lazy_itable_init);
1794 discard = get_bool_from_profile(fs_types, "discard" , discard);
1795
1796 /* Get options from profile */
1797 for (cpp = fs_types; *cpp; cpp++) {
1798 tmp = NULL;
1799 profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
1800 if (tmp && *tmp)
1801 parse_extended_opts(&fs_param, tmp);
1802 free(tmp);
1803 }
1804
1805 if (extended_opts)
1806 parse_extended_opts(&fs_param, extended_opts);
1807
1808 /* Since sparse_super is the default, we would only have a problem
1809 * here if it was explicitly disabled.
1810 */
1811 if ((fs_param.s_feature_compat & EXT2_FEATURE_COMPAT_RESIZE_INODE) &&
1812 !(fs_param.s_feature_ro_compat&EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
1813 com_err(program_name, 0,
1814 _("reserved online resize blocks not supported "
1815 "on non-sparse filesystem"));
1816 exit(1);
1817 }
1818
1819 if (fs_param.s_blocks_per_group) {
1820 if (fs_param.s_blocks_per_group < 256 ||
1821 fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
1822 com_err(program_name, 0,
1823 _("blocks per group count out of range"));
1824 exit(1);
1825 }
1826 }
1827
1828 if (inode_size == 0)
1829 inode_size = get_int_from_profile(fs_types, "inode_size", 0);
1830 if (!flex_bg_size && (fs_param.s_feature_incompat &
1831 EXT4_FEATURE_INCOMPAT_FLEX_BG))
1832 flex_bg_size = get_int_from_profile(fs_types,
1833 "flex_bg_size", 16);
1834 if (flex_bg_size) {
1835 if (!(fs_param.s_feature_incompat &
1836 EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
1837 com_err(program_name, 0,
1838 _("Flex_bg feature not enabled, so "
1839 "flex_bg size may not be specified"));
1840 exit(1);
1841 }
1842 fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
1843 }
1844
1845 if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
1846 if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
1847 inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
1848 inode_size & (inode_size - 1)) {
1849 com_err(program_name, 0,
1850 _("invalid inode size %d (min %d/max %d)"),
1851 inode_size, EXT2_GOOD_OLD_INODE_SIZE,
1852 blocksize);
1853 exit(1);
1854 }
1855 fs_param.s_inode_size = inode_size;
1856 }
1857
1858 /* Make sure number of inodes specified will fit in 32 bits */
1859 if (num_inodes == 0) {
1860 unsigned long long n;
1861 n = (unsigned long long) fs_param.s_blocks_count * blocksize / inode_ratio;
1862 if (n > ~0U) {
1863 com_err(program_name, 0,
1864 _("too many inodes (%llu), raise inode ratio?"), n);
1865 exit(1);
1866 }
1867 } else if (num_inodes > ~0U) {
1868 com_err(program_name, 0,
1869 _("too many inodes (%llu), specify < 2^32 inodes"),
1870 num_inodes);
1871 exit(1);
1872 }
1873 /*
1874 * Calculate number of inodes based on the inode ratio
1875 */
1876 fs_param.s_inodes_count = num_inodes ? num_inodes :
1877 ((__u64) fs_param.s_blocks_count * blocksize)
1878 / inode_ratio;
1879
1880 if ((((long long)fs_param.s_inodes_count) *
1881 (inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
1882 (((long long)fs_param.s_blocks_count) *
1883 EXT2_BLOCK_SIZE(&fs_param))) {
1884 com_err(program_name, 0, _("inode_size (%u) * inodes_count "
1885 "(%u) too big for a\n\t"
1886 "filesystem with %lu blocks, "
1887 "specify higher inode_ratio (-i)\n\t"
1888 "or lower inode count (-N).\n"),
1889 inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
1890 fs_param.s_inodes_count,
1891 (unsigned long) fs_param.s_blocks_count);
1892 exit(1);
1893 }
1894
1895 /*
1896 * Calculate number of blocks to reserve
1897 */
1898 fs_param.s_r_blocks_count = (unsigned int) (reserved_ratio *
1899 fs_param.s_blocks_count / 100.0);
1900 }
1901
should_do_undo(const char * name)1902 static int should_do_undo(const char *name)
1903 {
1904 errcode_t retval;
1905 io_channel channel;
1906 __u16 s_magic;
1907 struct ext2_super_block super;
1908 io_manager manager = unix_io_manager;
1909 int csum_flag, force_undo;
1910
1911 csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(&fs_param,
1912 EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
1913 force_undo = get_int_from_profile(fs_types, "force_undo", 0);
1914 if (!force_undo && (!csum_flag || !lazy_itable_init))
1915 return 0;
1916
1917 retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel);
1918 if (retval) {
1919 /*
1920 * We don't handle error cases instead we
1921 * declare that the file system doesn't exist
1922 * and let the rest of mke2fs take care of
1923 * error
1924 */
1925 retval = 0;
1926 goto open_err_out;
1927 }
1928
1929 io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
1930 retval = io_channel_read_blk(channel, 1, -SUPERBLOCK_SIZE, &super);
1931 if (retval) {
1932 retval = 0;
1933 goto err_out;
1934 }
1935
1936 #if defined(WORDS_BIGENDIAN)
1937 s_magic = ext2fs_swab16(super.s_magic);
1938 #else
1939 s_magic = super.s_magic;
1940 #endif
1941
1942 if (s_magic == EXT2_SUPER_MAGIC)
1943 retval = 1;
1944
1945 err_out:
1946 io_channel_close(channel);
1947
1948 open_err_out:
1949
1950 return retval;
1951 }
1952
mke2fs_setup_tdb(const char * name,io_manager * io_ptr)1953 static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
1954 {
1955 errcode_t retval = 0;
1956 char *tdb_dir, *tdb_file;
1957 char *device_name, *tmp_name;
1958
1959 /*
1960 * Configuration via a conf file would be
1961 * nice
1962 */
1963 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1964 if (!tdb_dir)
1965 profile_get_string(profile, "defaults",
1966 "undo_dir", 0, "/var/lib/e2fsprogs",
1967 &tdb_dir);
1968
1969 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1970 access(tdb_dir, W_OK))
1971 return 0;
1972
1973 tmp_name = strdup(name);
1974 if (!tmp_name) {
1975 alloc_fn_fail:
1976 com_err(program_name, ENOMEM,
1977 _("Couldn't allocate memory for tdb filename\n"));
1978 return ENOMEM;
1979 }
1980 device_name = basename(tmp_name);
1981 tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(device_name) + 7 + 1);
1982 if (!tdb_file)
1983 goto alloc_fn_fail;
1984 sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, device_name);
1985
1986 if (!access(tdb_file, F_OK)) {
1987 if (unlink(tdb_file) < 0) {
1988 retval = errno;
1989 com_err(program_name, retval,
1990 _("while trying to delete %s"),
1991 tdb_file);
1992 free(tdb_file);
1993 return retval;
1994 }
1995 }
1996
1997 set_undo_io_backing_manager(*io_ptr);
1998 *io_ptr = undo_io_manager;
1999 set_undo_io_backup_file(tdb_file);
2000 printf(_("Overwriting existing filesystem; this can be undone "
2001 "using the command:\n"
2002 " e2undo %s %s\n\n"), tdb_file, name);
2003
2004 free(tdb_file);
2005 free(tmp_name);
2006 return retval;
2007 }
2008
2009 #ifdef __linux__
2010
2011 #ifndef BLKDISCARD
2012 #define BLKDISCARD _IO(0x12,119)
2013 #endif
2014
2015 #ifndef BLKDISCARDZEROES
2016 #define BLKDISCARDZEROES _IO(0x12,124)
2017 #endif
2018
2019 /*
2020 * Return zero if the discard succeeds, and -1 if the discard fails.
2021 */
mke2fs_discard_blocks(ext2_filsys fs)2022 static int mke2fs_discard_blocks(ext2_filsys fs)
2023 {
2024 int fd;
2025 int ret;
2026 int blocksize;
2027 __u64 blocks;
2028 __uint64_t range[2];
2029
2030 blocks = fs->super->s_blocks_count;
2031 blocksize = EXT2_BLOCK_SIZE(fs->super);
2032 range[0] = 0;
2033 range[1] = blocks * blocksize;
2034
2035 #ifdef HAVE_OPEN64
2036 fd = open64(fs->device_name, O_RDWR);
2037 #else
2038 fd = open(fs->device_name, O_RDWR);
2039 #endif
2040 if (fd > 0) {
2041 ret = ioctl(fd, BLKDISCARD, &range);
2042 if (verbose) {
2043 printf(_("Calling BLKDISCARD from %llu to %llu "),
2044 (unsigned long long) range[0],
2045 (unsigned long long) range[1]);
2046 if (ret)
2047 printf(_("failed.\n"));
2048 else
2049 printf(_("succeeded.\n"));
2050 }
2051 close(fd);
2052 }
2053 return ret;
2054 }
2055
mke2fs_discard_zeroes_data(ext2_filsys fs)2056 static int mke2fs_discard_zeroes_data(ext2_filsys fs)
2057 {
2058 int fd;
2059 int ret;
2060 int discard_zeroes_data = 0;
2061
2062 #ifdef HAVE_OPEN64
2063 fd = open64(fs->device_name, O_RDWR);
2064 #else
2065 fd = open(fs->device_name, O_RDWR);
2066 #endif
2067 if (fd > 0) {
2068 ioctl(fd, BLKDISCARDZEROES, &discard_zeroes_data);
2069 close(fd);
2070 }
2071 return discard_zeroes_data;
2072 }
2073 #else
2074 #define mke2fs_discard_blocks(fs) 1
2075 #define mke2fs_discard_zeroes_data(fs) 0
2076 #endif
2077
main(int argc,char * argv[])2078 int main (int argc, char *argv[])
2079 {
2080 errcode_t retval = 0;
2081 ext2_filsys fs;
2082 badblocks_list bb_list = 0;
2083 unsigned int journal_blocks;
2084 unsigned int i;
2085 int val, hash_alg;
2086 io_manager io_ptr;
2087 char tdb_string[40];
2088 char *hash_alg_str;
2089 int itable_zeroed = 0;
2090
2091 #ifdef ENABLE_NLS
2092 setlocale(LC_MESSAGES, "");
2093 setlocale(LC_CTYPE, "");
2094 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2095 textdomain(NLS_CAT_NAME);
2096 #endif
2097 PRS(argc, argv);
2098
2099 #ifdef CONFIG_TESTIO_DEBUG
2100 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
2101 io_ptr = test_io_manager;
2102 test_io_backing_manager = unix_io_manager;
2103 } else
2104 #endif
2105 io_ptr = unix_io_manager;
2106
2107 if (should_do_undo(device_name)) {
2108 retval = mke2fs_setup_tdb(device_name, &io_ptr);
2109 if (retval)
2110 exit(1);
2111 }
2112
2113 /*
2114 * Initialize the superblock....
2115 */
2116 retval = ext2fs_initialize(device_name, EXT2_FLAG_EXCLUSIVE, &fs_param,
2117 io_ptr, &fs);
2118 if (retval) {
2119 com_err(device_name, retval, _("while setting up superblock"));
2120 exit(1);
2121 }
2122
2123 /* Can't undo discard ... */
2124 if (discard && (io_ptr != undo_io_manager)) {
2125 retval = mke2fs_discard_blocks(fs);
2126
2127 if (!retval && mke2fs_discard_zeroes_data(fs)) {
2128 if (verbose)
2129 printf(_("Discard succeeded and will return 0s "
2130 " - skipping inode table wipe\n"));
2131 lazy_itable_init = 1;
2132 itable_zeroed = 1;
2133 }
2134 }
2135
2136 sprintf(tdb_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
2137 32768 : fs->blocksize * 8);
2138 io_channel_set_options(fs->io, tdb_string);
2139
2140 if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
2141 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
2142
2143 if ((fs_param.s_feature_incompat &
2144 (EXT3_FEATURE_INCOMPAT_EXTENTS|EXT4_FEATURE_INCOMPAT_FLEX_BG)) ||
2145 (fs_param.s_feature_ro_compat &
2146 (EXT4_FEATURE_RO_COMPAT_HUGE_FILE|EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
2147 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
2148 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE)))
2149 fs->super->s_kbytes_written = 1;
2150
2151 /*
2152 * Wipe out the old on-disk superblock
2153 */
2154 if (!noaction)
2155 zap_sector(fs, 2, 6);
2156
2157 /*
2158 * Parse or generate a UUID for the filesystem
2159 */
2160 if (fs_uuid) {
2161 if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) {
2162 com_err(device_name, 0, "could not parse UUID: %s\n",
2163 fs_uuid);
2164 exit(1);
2165 }
2166 } else
2167 uuid_generate(fs->super->s_uuid);
2168
2169 /*
2170 * Initialize the directory index variables
2171 */
2172 hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
2173 "half_md4");
2174 hash_alg = e2p_string2hash(hash_alg_str);
2175 free(hash_alg_str);
2176 fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
2177 EXT2_HASH_HALF_MD4;
2178 uuid_generate((unsigned char *) fs->super->s_hash_seed);
2179
2180 /*
2181 * Add "jitter" to the superblock's check interval so that we
2182 * don't check all the filesystems at the same time. We use a
2183 * kludgy hack of using the UUID to derive a random jitter value.
2184 */
2185 for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
2186 val += fs->super->s_uuid[i];
2187 fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
2188
2189 /*
2190 * Override the creator OS, if applicable
2191 */
2192 if (creator_os && !set_os(fs->super, creator_os)) {
2193 com_err (program_name, 0, _("unknown os - %s"), creator_os);
2194 exit(1);
2195 }
2196
2197 /*
2198 * For the Hurd, we will turn off filetype since it doesn't
2199 * support it.
2200 */
2201 if (fs->super->s_creator_os == EXT2_OS_HURD)
2202 fs->super->s_feature_incompat &=
2203 ~EXT2_FEATURE_INCOMPAT_FILETYPE;
2204
2205 /*
2206 * Set the volume label...
2207 */
2208 if (volume_label) {
2209 memset(fs->super->s_volume_name, 0,
2210 sizeof(fs->super->s_volume_name));
2211 strncpy(fs->super->s_volume_name, volume_label,
2212 sizeof(fs->super->s_volume_name));
2213 }
2214
2215 /*
2216 * Set the last mount directory
2217 */
2218 if (mount_dir) {
2219 memset(fs->super->s_last_mounted, 0,
2220 sizeof(fs->super->s_last_mounted));
2221 strncpy(fs->super->s_last_mounted, mount_dir,
2222 sizeof(fs->super->s_last_mounted));
2223 }
2224
2225 if (!quiet || noaction)
2226 show_stats(fs);
2227
2228 if (noaction)
2229 exit(0);
2230
2231 if (fs->super->s_feature_incompat &
2232 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) {
2233 create_journal_dev(fs);
2234 exit(ext2fs_close(fs) ? 1 : 0);
2235 }
2236
2237 if (bad_blocks_filename)
2238 read_bb_file(fs, &bb_list, bad_blocks_filename);
2239 if (cflag)
2240 test_disk(fs, &bb_list);
2241
2242 handle_bad_blocks(fs, bb_list);
2243 fs->stride = fs_stride = fs->super->s_raid_stride;
2244 retval = ext2fs_allocate_tables(fs);
2245 if (retval) {
2246 com_err(program_name, retval,
2247 _("while trying to allocate filesystem tables"));
2248 exit(1);
2249 }
2250 if (super_only) {
2251 fs->super->s_state |= EXT2_ERROR_FS;
2252 fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
2253 } else {
2254 /* rsv must be a power of two (64kB is MD RAID sb alignment) */
2255 unsigned int rsv = 65536 / fs->blocksize;
2256 unsigned long blocks = fs->super->s_blocks_count;
2257 unsigned long start;
2258 blk_t ret_blk;
2259
2260 #ifdef ZAP_BOOTBLOCK
2261 zap_sector(fs, 0, 2);
2262 #endif
2263
2264 /*
2265 * Wipe out any old MD RAID (or other) metadata at the end
2266 * of the device. This will also verify that the device is
2267 * as large as we think. Be careful with very small devices.
2268 */
2269 start = (blocks & ~(rsv - 1));
2270 if (start > rsv)
2271 start -= rsv;
2272 if (start > 0)
2273 retval = ext2fs_zero_blocks(fs, start, blocks - start,
2274 &ret_blk, NULL);
2275
2276 if (retval) {
2277 com_err(program_name, retval,
2278 _("while zeroing block %u at end of filesystem"),
2279 ret_blk);
2280 }
2281 write_inode_tables(fs, lazy_itable_init, itable_zeroed);
2282 create_root_dir(fs);
2283 create_lost_and_found(fs);
2284 reserve_inodes(fs);
2285 create_bad_block_inode(fs, bb_list);
2286 if (fs->super->s_feature_compat &
2287 EXT2_FEATURE_COMPAT_RESIZE_INODE) {
2288 retval = ext2fs_create_resize_inode(fs);
2289 if (retval) {
2290 com_err("ext2fs_create_resize_inode", retval,
2291 _("while reserving blocks for online resize"));
2292 exit(1);
2293 }
2294 }
2295 }
2296
2297 if (journal_device) {
2298 ext2_filsys jfs;
2299
2300 if (!force)
2301 check_plausibility(journal_device);
2302 check_mount(journal_device, force, _("journal"));
2303
2304 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
2305 EXT2_FLAG_JOURNAL_DEV_OK, 0,
2306 fs->blocksize, unix_io_manager, &jfs);
2307 if (retval) {
2308 com_err(program_name, retval,
2309 _("while trying to open journal device %s\n"),
2310 journal_device);
2311 exit(1);
2312 }
2313 if (!quiet) {
2314 printf(_("Adding journal to device %s: "),
2315 journal_device);
2316 fflush(stdout);
2317 }
2318 retval = ext2fs_add_journal_device(fs, jfs);
2319 if(retval) {
2320 com_err (program_name, retval,
2321 _("\n\twhile trying to add journal to device %s"),
2322 journal_device);
2323 exit(1);
2324 }
2325 if (!quiet)
2326 printf(_("done\n"));
2327 ext2fs_close(jfs);
2328 free(journal_device);
2329 } else if ((journal_size) ||
2330 (fs_param.s_feature_compat &
2331 EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
2332 journal_blocks = figure_journal_size(journal_size, fs);
2333
2334 if (super_only) {
2335 printf(_("Skipping journal creation in super-only mode\n"));
2336 fs->super->s_journal_inum = EXT2_JOURNAL_INO;
2337 goto no_journal;
2338 }
2339
2340 if (!journal_blocks) {
2341 fs->super->s_feature_compat &=
2342 ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
2343 goto no_journal;
2344 }
2345 if (!quiet) {
2346 printf(_("Creating journal (%u blocks): "),
2347 journal_blocks);
2348 fflush(stdout);
2349 }
2350 retval = ext2fs_add_journal_inode(fs, journal_blocks,
2351 journal_flags);
2352 if (retval) {
2353 com_err (program_name, retval,
2354 _("\n\twhile trying to create journal"));
2355 exit(1);
2356 }
2357 if (!quiet)
2358 printf(_("done\n"));
2359 }
2360 no_journal:
2361
2362 if (!quiet)
2363 printf(_("Writing superblocks and "
2364 "filesystem accounting information: "));
2365 retval = ext2fs_flush(fs);
2366 if (retval) {
2367 fprintf(stderr,
2368 _("\nWarning, had trouble writing out superblocks."));
2369 }
2370 if (!quiet) {
2371 printf(_("done\n\n"));
2372 if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
2373 print_check_message(fs);
2374 }
2375 val = ext2fs_close(fs);
2376 remove_error_table(&et_ext2_error_table);
2377 remove_error_table(&et_prof_error_table);
2378 profile_release(profile);
2379 for (i=0; fs_types[i]; i++)
2380 free(fs_types[i]);
2381 free(fs_types);
2382 return (retval || val) ? 1 : 0;
2383 }
2384