2 * tune2fs.c - Change the file system parameters on an ext2 file system
4 * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr>
5 * Laboratoire MASI, Institut Blaise Pascal
6 * Universite Pierre et Marie Curie (Paris VI)
8 * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o.
11 * This file may be redistributed under the terms of the GNU Public
19 * 93/10/31 - Added the -c option to change the maximal mount counts
20 * 93/12/14 - Added -l flag to list contents of superblock
21 * M.J.E. Mol (marcel@duteca.et.tudelft.nl)
22 * F.W. ten Wolde (franky@duteca.et.tudelft.nl)
23 * 93/12/29 - Added the -e option to change errors behavior
24 * 94/02/27 - Ported to use the ext2fs library
25 * 94/03/06 - Added the checks interval from Uwe Ohse (uwe@tirka.gun.de)
28 #define _XOPEN_SOURCE 600 /* for inclusion of strptime() */
29 #define _BSD_SOURCE /* for inclusion of strcasecmp() */
47 #include <sys/types.h>
51 #include "ext2fs/ext2_fs.h"
52 #include "ext2fs/ext2fs.h"
53 #include "et/com_err.h"
54 #include "uuid/uuid.h"
58 #include "blkid/blkid.h"
59 #include "quota/mkquota.h"
61 #include "../version.h"
62 #include "nls-enable.h"
64 #define QOPT_ENABLE (1)
65 #define QOPT_DISABLE (-1)
67 extern int ask_yn(const char *string, int def);
69 const char *program_name = "tune2fs";
71 char *new_label, *new_last_mounted, *new_UUID;
73 static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag;
74 static int m_flag, M_flag, Q_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag;
77 static time_t last_check_time;
78 static int print_label;
79 static int max_mount_count, mount_count, mount_flags;
80 static unsigned long interval;
81 static blk64_t reserved_blocks;
82 static double reserved_ratio;
83 static unsigned long resgid, resuid;
84 static unsigned short errors;
86 static char *features_cmd;
87 static char *mntopts_cmd;
88 static int stride, stripe_width;
89 static int stride_set, stripe_width_set;
90 static char *extended_cmd;
91 static unsigned long new_inode_size;
92 static char *ext_mount_opts;
93 static int usrquota, grpquota;
95 int journal_size, journal_flags;
98 static struct list_head blk_move_list;
101 struct list_head list;
107 static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n");
109 #ifdef CONFIG_BUILD_FINDFS
110 void do_findfs(int argc, char **argv);
113 static void usage(void)
116 _("Usage: %s [-c max_mounts_count] [-e errors_behavior] "
118 "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n"
119 "\t[-m reserved_blocks_percent] "
120 "[-o [^]mount_options[,...]] [-p mmp_update_interval]\n"
121 "\t[-r reserved_blocks_count] [-u user] [-C mount_count] "
122 "[-L volume_label]\n"
123 "\t[-M last_mounted_dir] [-O [^]feature[,...]]\n"
124 "\t[-E extended-option[,...]] [-T last_check_time] "
125 "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name);
129 static __u32 ok_features[3] = {
131 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
132 EXT2_FEATURE_COMPAT_DIR_INDEX,
134 EXT2_FEATURE_INCOMPAT_FILETYPE |
135 EXT3_FEATURE_INCOMPAT_EXTENTS |
136 EXT4_FEATURE_INCOMPAT_FLEX_BG |
137 EXT4_FEATURE_INCOMPAT_MMP,
139 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
140 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
141 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
142 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
143 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
144 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER |
145 EXT4_FEATURE_RO_COMPAT_QUOTA
148 static __u32 clear_ok_features[3] = {
150 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
151 EXT2_FEATURE_COMPAT_RESIZE_INODE |
152 EXT2_FEATURE_COMPAT_DIR_INDEX,
154 EXT2_FEATURE_INCOMPAT_FILETYPE |
155 EXT4_FEATURE_INCOMPAT_FLEX_BG |
156 EXT4_FEATURE_INCOMPAT_MMP,
158 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
159 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
160 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
161 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
162 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
163 EXT4_FEATURE_RO_COMPAT_QUOTA
167 * Remove an external journal from the filesystem
169 static int remove_journal_device(ext2_filsys fs)
174 journal_superblock_t *jsb;
177 int commit_remove_journal = 0;
181 commit_remove_journal = 1; /* force removal even if error */
183 uuid_unparse(fs->super->s_journal_uuid, buf);
184 journal_path = blkid_get_devname(NULL, "UUID", buf);
188 ext2fs_find_block_device(fs->super->s_journal_dev);
190 goto no_valid_journal;
193 #ifdef CONFIG_TESTIO_DEBUG
194 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
195 io_ptr = test_io_manager;
196 test_io_backing_manager = unix_io_manager;
199 io_ptr = unix_io_manager;
200 retval = ext2fs_open(journal_path, EXT2_FLAG_RW|
201 EXT2_FLAG_JOURNAL_DEV_OK, 0,
202 fs->blocksize, io_ptr, &jfs);
204 com_err(program_name, retval,
205 _("while trying to open external journal"));
206 goto no_valid_journal;
208 if (!(jfs->super->s_feature_incompat &
209 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
210 fprintf(stderr, _("%s is not a journal device.\n"),
212 goto no_valid_journal;
215 /* Get the journal superblock */
216 if ((retval = io_channel_read_blk64(jfs->io, 1, -1024, buf))) {
217 com_err(program_name, retval,
218 _("while reading journal superblock"));
219 goto no_valid_journal;
222 jsb = (journal_superblock_t *) buf;
223 if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) ||
224 (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) {
225 fputs(_("Journal superblock not found!\n"), stderr);
226 goto no_valid_journal;
229 /* Find the filesystem UUID */
230 nr_users = ntohl(jsb->s_nr_users);
231 for (i = 0; i < nr_users; i++) {
232 if (memcmp(fs->super->s_uuid, &jsb->s_users[i * 16], 16) == 0)
236 fputs(_("Filesystem's UUID not found on journal device.\n"),
238 commit_remove_journal = 1;
239 goto no_valid_journal;
242 for (i = 0; i < nr_users; i++)
243 memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16);
244 jsb->s_nr_users = htonl(nr_users);
246 /* Write back the journal superblock */
247 if ((retval = io_channel_write_blk64(jfs->io, 1, -1024, buf))) {
248 com_err(program_name, retval,
249 "while writing journal superblock.");
250 goto no_valid_journal;
253 commit_remove_journal = 1;
256 if (commit_remove_journal == 0) {
257 fputs(_("Cannot locate journal device. It was NOT removed\n"
258 "Use -f option to remove missing journal device.\n"),
262 fs->super->s_journal_dev = 0;
263 uuid_clear(fs->super->s_journal_uuid);
264 ext2fs_mark_super_dirty(fs);
265 fputs(_("Journal removed\n"), stdout);
271 /* Helper function for remove_journal_inode */
272 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
273 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
274 blk64_t ref_block EXT2FS_ATTR((unused)),
275 int ref_offset EXT2FS_ATTR((unused)),
276 void *private EXT2FS_ATTR((unused)))
282 ext2fs_unmark_block_bitmap2(fs->block_map, block);
283 group = ext2fs_group_of_blk2(fs, block);
284 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
285 ext2fs_group_desc_csum_set(fs, group);
286 ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs));
291 * Remove the journal inode from the filesystem
293 static errcode_t remove_journal_inode(ext2_filsys fs)
295 struct ext2_inode inode;
297 ino_t ino = fs->super->s_journal_inum;
299 retval = ext2fs_read_inode(fs, ino, &inode);
301 com_err(program_name, retval,
302 _("while reading journal inode"));
305 if (ino == EXT2_JOURNAL_INO) {
306 retval = ext2fs_read_bitmaps(fs);
308 com_err(program_name, retval,
309 _("while reading bitmaps"));
312 retval = ext2fs_block_iterate3(fs, ino,
313 BLOCK_FLAG_READ_ONLY, NULL,
314 release_blocks_proc, NULL);
316 com_err(program_name, retval,
317 _("while clearing journal inode"));
320 memset(&inode, 0, sizeof(inode));
321 ext2fs_mark_bb_dirty(fs);
322 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
324 inode.i_flags &= ~EXT2_IMMUTABLE_FL;
325 retval = ext2fs_write_inode(fs, ino, &inode);
327 com_err(program_name, retval,
328 _("while writing journal inode"));
331 fs->super->s_journal_inum = 0;
332 ext2fs_mark_super_dirty(fs);
338 * Update the default mount options
340 static int update_mntopts(ext2_filsys fs, char *mntopts)
342 struct ext2_super_block *sb = fs->super;
344 if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) {
345 fprintf(stderr, _("Invalid mount option set: %s\n"),
349 ext2fs_mark_super_dirty(fs);
354 static void request_fsck_afterwards(ext2_filsys fs)
356 static int requested = 0;
360 fs->super->s_state &= ~EXT2_VALID_FS;
361 printf("\n%s\n", _(please_fsck));
362 if (mount_flags & EXT2_MF_READONLY)
363 printf(_("(and reboot afterwards!)\n"));
367 * Update the feature set as provided by the user.
369 static int update_feature_set(ext2_filsys fs, char *features)
371 struct ext2_super_block *sb = fs->super;
372 struct ext2_group_desc *gd;
373 __u32 old_features[3];
375 unsigned int mask_err;
377 #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
378 ((&sb->s_feature_compat)[(type)] & (mask)))
379 #define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \
380 !((&sb->s_feature_compat)[(type)] & (mask)))
381 #define FEATURE_CHANGED(type, mask) ((mask) & \
382 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)]))
384 old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat;
385 old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat;
386 old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat;
388 if (e2p_edit_feature2(features, &sb->s_feature_compat,
389 ok_features, clear_ok_features,
390 &type_err, &mask_err)) {
393 _("Invalid filesystem option set: %s\n"),
395 else if (type_err & E2P_FEATURE_NEGATE_FLAG)
396 fprintf(stderr, _("Clearing filesystem feature '%s' "
398 e2p_feature2string(type_err &
399 E2P_FEATURE_TYPE_MASK,
402 fprintf(stderr, _("Setting filesystem feature '%s' "
404 e2p_feature2string(type_err, mask_err));
408 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
409 if ((mount_flags & EXT2_MF_MOUNTED) &&
410 !(mount_flags & EXT2_MF_READONLY)) {
411 fputs(_("The has_journal feature may only be "
412 "cleared when the filesystem is\n"
413 "unmounted or mounted "
414 "read-only.\n"), stderr);
417 if (sb->s_feature_incompat &
418 EXT3_FEATURE_INCOMPAT_RECOVER) {
419 fputs(_("The needs_recovery flag is set. "
420 "Please run e2fsck before clearing\n"
421 "the has_journal flag.\n"), stderr);
424 if (sb->s_journal_inum) {
425 if (remove_journal_inode(fs))
428 if (sb->s_journal_dev) {
429 if (remove_journal_device(fs))
433 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
436 if ((mount_flags & EXT2_MF_MOUNTED) ||
437 (mount_flags & EXT2_MF_READONLY)) {
438 fputs(_("The multiple mount protection feature can't\n"
439 "be set if the filesystem is mounted or\n"
440 "read-only.\n"), stderr);
444 error = ext2fs_mmp_init(fs);
446 fputs(_("\nError while enabling multiple mount "
447 "protection feature."), stderr);
452 * We want to update group desc with the new free blocks count
454 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
456 printf(_("Multiple mount protection has been enabled "
457 "with update interval %ds.\n"),
458 sb->s_mmp_update_interval);
461 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
464 if (mount_flags & EXT2_MF_READONLY) {
465 fputs(_("The multiple mount protection feature cannot\n"
466 "be disabled if the filesystem is readonly.\n"),
471 error = ext2fs_read_bitmaps(fs);
473 fputs(_("Error while reading bitmaps\n"), stderr);
477 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL);
479 struct mmp_struct *mmp_cmp = fs->mmp_cmp;
481 if (error == EXT2_ET_MMP_MAGIC_INVALID)
482 printf(_("Magic number in MMP block does not "
483 "match. expected: %x, actual: %x\n"),
484 EXT4_MMP_MAGIC, mmp_cmp->mmp_magic);
486 com_err(program_name, error,
487 _("while reading MMP block."));
491 /* We need to force out the group descriptors as well */
492 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
493 ext2fs_block_alloc_stats(fs, sb->s_mmp_block, -1);
496 sb->s_mmp_update_interval = 0;
499 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
501 * If adding a journal flag, let the create journal
502 * code below handle setting the flag and creating the
503 * journal. We supply a default size if necessary.
507 sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
510 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) {
511 if (!sb->s_def_hash_version)
512 sb->s_def_hash_version = EXT2_HASH_HALF_MD4;
513 if (uuid_is_null((unsigned char *) sb->s_hash_seed))
514 uuid_generate((unsigned char *) sb->s_hash_seed);
517 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
518 if (ext2fs_check_desc(fs)) {
519 fputs(_("Clearing the flex_bg flag would "
520 "cause the the filesystem to be\n"
521 "inconsistent.\n"), stderr);
526 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
527 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) {
528 if ((mount_flags & EXT2_MF_MOUNTED) &&
529 !(mount_flags & EXT2_MF_READONLY)) {
530 fputs(_("The huge_file feature may only be "
531 "cleared when the filesystem is\n"
532 "unmounted or mounted "
533 "read-only.\n"), stderr);
538 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
539 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
540 for (i = 0; i < fs->group_desc_count; i++) {
541 gd = ext2fs_group_desc(fs, fs->group_desc, i);
542 gd->bg_itable_unused = 0;
543 gd->bg_flags = EXT2_BG_INODE_ZEROED;
544 ext2fs_group_desc_csum_set(fs, i);
546 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
549 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
550 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
551 for (i = 0; i < fs->group_desc_count; i++) {
552 gd = ext2fs_group_desc(fs, fs->group_desc, i);
553 if ((gd->bg_flags & EXT2_BG_INODE_ZEROED) == 0) {
555 * XXX what we really should do is zap
556 * uninitialized inode tables instead.
558 request_fsck_afterwards(fs);
561 gd->bg_itable_unused = 0;
565 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
568 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
569 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
571 * Set the Q_flag here and handle the quota options in the code
576 /* Enable both user quota and group quota by default */
577 usrquota = QOPT_ENABLE;
578 grpquota = QOPT_ENABLE;
580 sb->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
583 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
584 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
586 * Set the Q_flag here and handle the quota options in the code
590 fputs(_("\nWarning: '^quota' option overrides '-Q'"
591 "arguments.\n"), stderr);
593 /* Disable both user quota and group quota by default */
594 usrquota = QOPT_DISABLE;
595 grpquota = QOPT_DISABLE;
598 if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
599 (sb->s_feature_compat || sb->s_feature_ro_compat ||
600 sb->s_feature_incompat))
601 ext2fs_update_dynamic_rev(fs);
603 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
604 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) ||
605 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
606 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
607 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT,
608 EXT2_FEATURE_INCOMPAT_FILETYPE) ||
609 FEATURE_CHANGED(E2P_FEATURE_COMPAT,
610 EXT2_FEATURE_COMPAT_RESIZE_INODE) ||
611 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
612 EXT2_FEATURE_RO_COMPAT_LARGE_FILE))
613 request_fsck_afterwards(fs);
615 if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) ||
616 (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) ||
617 (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat))
618 ext2fs_mark_super_dirty(fs);
624 * Add a journal to the filesystem.
626 static int add_journal(ext2_filsys fs)
628 unsigned long journal_blocks;
633 if (fs->super->s_feature_compat &
634 EXT3_FEATURE_COMPAT_HAS_JOURNAL) {
635 fputs(_("The filesystem already has a journal.\n"), stderr);
638 if (journal_device) {
639 check_plausibility(journal_device);
640 check_mount(journal_device, 0, _("journal"));
641 #ifdef CONFIG_TESTIO_DEBUG
642 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
643 io_ptr = test_io_manager;
644 test_io_backing_manager = unix_io_manager;
647 io_ptr = unix_io_manager;
648 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
649 EXT2_FLAG_JOURNAL_DEV_OK, 0,
650 fs->blocksize, io_ptr, &jfs);
652 com_err(program_name, retval,
653 _("\n\twhile trying to open journal on %s\n"),
657 printf(_("Creating journal on device %s: "),
661 retval = ext2fs_add_journal_device(fs, jfs);
664 com_err(program_name, retval,
665 _("while adding filesystem to journal on %s"),
669 fputs(_("done\n"), stdout);
670 } else if (journal_size) {
671 fputs(_("Creating journal inode: "), stdout);
673 journal_blocks = figure_journal_size(journal_size, fs);
675 retval = ext2fs_add_journal_inode(fs, journal_blocks,
678 fprintf(stderr, "\n");
679 com_err(program_name, retval,
680 _("\n\twhile trying to create journal file"));
683 fputs(_("done\n"), stdout);
685 * If the filesystem wasn't mounted, we need to force
686 * the block group descriptors out.
688 if ((mount_flags & EXT2_MF_MOUNTED) == 0)
689 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
691 print_check_message(fs->super->s_max_mnt_count,
692 fs->super->s_checkinterval);
696 free(journal_device);
700 void handle_quota_options(ext2_filsys fs)
706 if (!usrquota && !grpquota)
710 init_quota_context(&qctx, fs, -1);
712 if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) {
713 if ((qf_ino = quota_file_exists(fs, USRQUOTA)) > 0)
714 set_sb_quota_inum(fs, qf_ino, USRQUOTA);
716 write_quota_inode(qctx, USRQUOTA);
717 } else if (usrquota == QOPT_DISABLE) {
718 remove_quota_inode(fs, USRQUOTA);
721 if (grpquota == QOPT_ENABLE && !fs->super->s_grp_quota_inum) {
722 if ((qf_ino = quota_file_exists(fs, GRPQUOTA)) > 0)
723 set_sb_quota_inum(fs, qf_ino, GRPQUOTA);
725 write_quota_inode(qctx, GRPQUOTA);
726 } else if (grpquota == QOPT_DISABLE) {
727 remove_quota_inode(fs, GRPQUOTA);
730 release_quota_context(&qctx);
732 if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) {
733 fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA;
734 ext2fs_mark_super_dirty(fs);
735 } else if ((usrquota == QOPT_DISABLE) && (grpquota == QOPT_DISABLE)) {
736 fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
737 ext2fs_mark_super_dirty(fs);
743 void parse_quota_opts(const char *opts)
745 char *buf, *token, *next, *p, *arg;
751 fputs(_("Couldn't allocate memory to parse quota "
752 "options!\n"), stderr);
756 for (token = buf; token && *token; token = next) {
757 p = strchr(token, ',');
764 if (strcmp(token, "usrquota") == 0) {
765 usrquota = QOPT_ENABLE;
766 } else if (strcmp(token, "^usrquota") == 0) {
767 usrquota = QOPT_DISABLE;
768 } else if (strcmp(token, "grpquota") == 0) {
769 grpquota = QOPT_ENABLE;
770 } else if (strcmp(token, "^grpquota") == 0) {
771 grpquota = QOPT_DISABLE;
773 fputs(_("\nBad quota options specified.\n\n"
774 "Following valid quota options are available "
775 "(pass by separating with comma):\n"
788 static void parse_e2label_options(int argc, char ** argv)
790 if ((argc < 2) || (argc > 3)) {
791 fputs(_("Usage: e2label device [newlabel]\n"), stderr);
794 io_options = strchr(argv[1], '?');
797 device_name = blkid_get_devname(NULL, argv[1], NULL);
799 com_err("e2label", 0, _("Unable to resolve '%s'"),
803 open_flag = EXT2_FLAG_JOURNAL_DEV_OK;
805 open_flag |= EXT2_FLAG_RW;
812 static time_t parse_time(char *str)
816 if (strcmp(str, "now") == 0) {
819 memset(&ts, 0, sizeof(ts));
821 strptime(str, "%Y%m%d%H%M%S", &ts);
823 sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
824 &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
827 if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 ||
828 ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 ||
829 ts.tm_min > 59 || ts.tm_sec > 61)
832 if (ts.tm_mday == 0) {
833 com_err(program_name, 0,
834 _("Couldn't parse date/time specifier: %s"),
839 return (mktime(&ts));
842 static void parse_tune2fs_options(int argc, char **argv)
851 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
852 while ((c = getopt(argc, argv, "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:Q:T:U:")) != EOF)
855 max_mount_count = strtol(optarg, &tmp, 0);
856 if (*tmp || max_mount_count > 16000) {
857 com_err(program_name, 0,
858 _("bad mounts count - %s"),
862 if (max_mount_count == 0)
863 max_mount_count = -1;
865 open_flag = EXT2_FLAG_RW;
868 mount_count = strtoul(optarg, &tmp, 0);
869 if (*tmp || mount_count > 16000) {
870 com_err(program_name, 0,
871 _("bad mounts count - %s"),
876 open_flag = EXT2_FLAG_RW;
879 if (strcmp(optarg, "continue") == 0)
880 errors = EXT2_ERRORS_CONTINUE;
881 else if (strcmp(optarg, "remount-ro") == 0)
882 errors = EXT2_ERRORS_RO;
883 else if (strcmp(optarg, "panic") == 0)
884 errors = EXT2_ERRORS_PANIC;
886 com_err(program_name, 0,
887 _("bad error behavior - %s"),
892 open_flag = EXT2_FLAG_RW;
895 extended_cmd = optarg;
896 open_flag |= EXT2_FLAG_RW;
898 case 'f': /* Force */
902 resgid = strtoul(optarg, &tmp, 0);
904 gr = getgrnam(optarg);
913 com_err(program_name, 0,
914 _("bad gid/group name - %s"),
919 open_flag = EXT2_FLAG_RW;
922 interval = strtoul(optarg, &tmp, 0);
935 case 'M': /* months! */
936 interval *= 86400 * 30;
940 case 'W': /* weeks */
941 interval *= 86400 * 7;
946 com_err(program_name, 0,
947 _("bad interval - %s"), optarg);
951 open_flag = EXT2_FLAG_RW;
956 open_flag = EXT2_FLAG_RW;
959 parse_journal_opts(optarg);
960 open_flag = EXT2_FLAG_RW;
968 open_flag |= EXT2_FLAG_RW |
969 EXT2_FLAG_JOURNAL_DEV_OK;
972 reserved_ratio = strtod(optarg, &tmp);
973 if (*tmp || reserved_ratio > 50 ||
974 reserved_ratio < 0) {
975 com_err(program_name, 0,
976 _("bad reserved block ratio - %s"),
981 open_flag = EXT2_FLAG_RW;
984 new_last_mounted = optarg;
986 open_flag = EXT2_FLAG_RW;
990 com_err(program_name, 0,
991 _("-o may only be specified once"));
994 mntopts_cmd = optarg;
995 open_flag = EXT2_FLAG_RW;
999 com_err(program_name, 0,
1000 _("-O may only be specified once"));
1003 features_cmd = optarg;
1004 open_flag = EXT2_FLAG_RW;
1008 parse_quota_opts(optarg);
1009 open_flag = EXT2_FLAG_RW;
1012 reserved_blocks = strtoul(optarg, &tmp, 0);
1014 com_err(program_name, 0,
1015 _("bad reserved blocks count - %s"),
1020 open_flag = EXT2_FLAG_RW;
1022 case 's': /* Deprecated */
1023 s_flag = atoi(optarg);
1024 open_flag = EXT2_FLAG_RW;
1028 last_check_time = parse_time(optarg);
1029 open_flag = EXT2_FLAG_RW;
1032 resuid = strtoul(optarg, &tmp, 0);
1034 pw = getpwnam(optarg);
1038 resuid = pw->pw_uid;
1043 com_err(program_name, 0,
1044 _("bad uid/user name - %s"),
1049 open_flag = EXT2_FLAG_RW;
1054 open_flag = EXT2_FLAG_RW |
1055 EXT2_FLAG_JOURNAL_DEV_OK;
1058 new_inode_size = strtoul(optarg, &tmp, 0);
1060 com_err(program_name, 0,
1061 _("bad inode size - %s"),
1065 if (!((new_inode_size &
1066 (new_inode_size - 1)) == 0)) {
1067 com_err(program_name, 0,
1068 _("Inode size must be a "
1069 "power of two- %s"),
1073 open_flag = EXT2_FLAG_RW;
1079 if (optind < argc - 1 || optind == argc)
1081 if (!open_flag && !l_flag)
1083 io_options = strchr(argv[optind], '?');
1086 device_name = blkid_get_devname(NULL, argv[optind], NULL);
1088 com_err("tune2fs", 0, _("Unable to resolve '%s'"),
1094 #ifdef CONFIG_BUILD_FINDFS
1095 void do_findfs(int argc, char **argv)
1100 (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) {
1101 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n");
1104 dev = blkid_get_devname(NULL, argv[1], NULL);
1106 com_err("findfs", 0, _("Unable to resolve '%s'"),
1115 static int parse_extended_opts(ext2_filsys fs, const char *opts)
1117 char *buf, *token, *next, *p, *arg;
1122 buf = malloc(len+1);
1125 _("Couldn't allocate memory to parse options!\n"));
1129 for (token = buf; token && *token; token = next) {
1130 p = strchr(token, ',');
1136 arg = strchr(token, '=');
1141 if (strcmp(token, "clear-mmp") == 0 ||
1142 strcmp(token, "clear_mmp") == 0) {
1144 } else if (strcmp(token, "mmp_update_interval") == 0) {
1145 unsigned long interval;
1150 interval = strtoul(arg, &p, 0);
1153 _("Invalid mmp_update_interval: %s\n"),
1158 if (interval == 0) {
1159 interval = EXT4_MMP_UPDATE_INTERVAL;
1160 } else if (interval > EXT4_MMP_MAX_UPDATE_INTERVAL) {
1162 _("mmp_update_interval too big: %lu\n"),
1167 printf(P_("Setting multiple mount protection update "
1168 "interval to %lu second\n",
1169 "Setting multiple mount protection update "
1170 "interval to %lu seconds\n", interval),
1172 fs->super->s_mmp_update_interval = interval;
1173 ext2fs_mark_super_dirty(fs);
1174 } else if (!strcmp(token, "test_fs")) {
1175 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1176 printf("Setting test filesystem flag\n");
1177 ext2fs_mark_super_dirty(fs);
1178 } else if (!strcmp(token, "^test_fs")) {
1179 fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS;
1180 printf("Clearing test filesystem flag\n");
1181 ext2fs_mark_super_dirty(fs);
1182 } else if (strcmp(token, "stride") == 0) {
1187 stride = strtoul(arg, &p, 0);
1190 _("Invalid RAID stride: %s\n"),
1196 } else if (strcmp(token, "stripe-width") == 0 ||
1197 strcmp(token, "stripe_width") == 0) {
1202 stripe_width = strtoul(arg, &p, 0);
1205 _("Invalid RAID stripe-width: %s\n"),
1210 stripe_width_set = 1;
1211 } else if (strcmp(token, "hash_alg") == 0 ||
1212 strcmp(token, "hash-alg") == 0) {
1217 hash_alg = e2p_string2hash(arg);
1220 _("Invalid hash algorithm: %s\n"),
1225 fs->super->s_def_hash_version = hash_alg;
1226 printf(_("Setting default hash algorithm "
1229 ext2fs_mark_super_dirty(fs);
1230 } else if (!strcmp(token, "mount_opts")) {
1235 if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) {
1237 "Extended mount options too long\n");
1240 ext_mount_opts = strdup(arg);
1245 fprintf(stderr, _("\nBad options specified.\n\n"
1246 "Extended options are separated by commas, "
1247 "and may take an argument which\n"
1248 "\tis set off by an equals ('=') sign.\n\n"
1249 "Valid extended options are:\n"
1251 "\thash_alg=<hash algorithm>\n"
1252 "\tmount_opts=<extended default mount options>\n"
1253 "\tstride=<RAID per-disk chunk size in blocks>\n"
1254 "\tstripe_width=<RAID stride*data disks in blocks>\n"
1266 * Fill in the block bitmap bmap with the information regarding the
1267 * blocks to be moved
1269 static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp,
1270 ext2fs_block_bitmap bmap)
1274 ext2_badblocks_list bb_list = 0;
1275 blk64_t j, needed_blocks = 0;
1276 blk64_t start_blk, end_blk;
1278 retval = ext2fs_read_bb_inode(fs, &bb_list);
1282 for (i = 0; i < fs->group_desc_count; i++) {
1283 start_blk = ext2fs_inode_table_loc(fs, i) +
1284 fs->inode_blocks_per_group;
1286 end_blk = ext2fs_inode_table_loc(fs, i) +
1287 new_ino_blks_per_grp;
1289 for (j = start_blk; j < end_blk; j++) {
1290 if (ext2fs_test_block_bitmap2(fs->block_map, j)) {
1292 * IF the block is a bad block we fail
1294 if (ext2fs_badblocks_list_test(bb_list, j)) {
1295 ext2fs_badblocks_list_free(bb_list);
1299 ext2fs_mark_block_bitmap2(bmap, j);
1302 * We are going to use this block for
1303 * inode table. So mark them used.
1305 ext2fs_mark_block_bitmap2(fs->block_map, j);
1308 needed_blocks += end_blk - start_blk;
1311 ext2fs_badblocks_list_free(bb_list);
1312 if (needed_blocks > ext2fs_free_blocks_count(fs->super))
1318 static int ext2fs_is_meta_block(ext2_filsys fs, blk_t blk)
1321 group = ext2fs_group_of_blk(fs, blk);
1322 if (ext2fs_block_bitmap_loc(fs, group) == blk)
1324 if (ext2fs_inode_bitmap_loc(fs, group) == blk)
1329 static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk_t blk)
1331 blk_t start_blk, end_blk;
1332 start_blk = fs->super->s_first_data_block +
1333 EXT2_BLOCKS_PER_GROUP(fs->super) * group;
1335 * We cannot get new block beyond end_blk for for the last block group
1336 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group
1338 end_blk = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super);
1339 if (blk >= start_blk && blk <= end_blk)
1344 static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
1351 blk64_t blk, new_blk, goal;
1352 struct blk_move *bmv;
1354 retval = ext2fs_get_mem(fs->blocksize, &buf);
1358 for (new_blk = blk = fs->super->s_first_data_block;
1359 blk < ext2fs_blocks_count(fs->super); blk++) {
1360 if (!ext2fs_test_block_bitmap2(bmap, blk))
1363 if (ext2fs_is_meta_block(fs, blk)) {
1365 * If the block is mapping a fs meta data block
1366 * like group desc/block bitmap/inode bitmap. We
1367 * should find a block in the same group and fix
1368 * the respective fs metadata pointers. Otherwise
1371 group = ext2fs_group_of_blk(fs, blk);
1372 goal = ext2fs_group_first_block2(fs, group);
1378 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk);
1382 /* new fs meta data block should be in the same group */
1383 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) {
1388 /* Mark this block as allocated */
1389 ext2fs_mark_block_bitmap2(fs->block_map, new_blk);
1391 /* Add it to block move list */
1392 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv);
1397 bmv->new_loc = new_blk;
1399 list_add(&(bmv->list), &blk_move_list);
1401 retval = io_channel_read_blk64(fs->io, blk, 1, buf);
1405 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf);
1411 ext2fs_free_mem(&buf);
1415 static blk64_t translate_block(blk64_t blk)
1417 struct list_head *entry;
1418 struct blk_move *bmv;
1420 list_for_each(entry, &blk_move_list) {
1421 bmv = list_entry(entry, struct blk_move, list);
1422 if (bmv->old_loc == blk)
1423 return bmv->new_loc;
1429 static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
1431 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1432 blk64_t ref_block EXT2FS_ATTR((unused)),
1433 int ref_offset EXT2FS_ATTR((unused)),
1438 ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data;
1440 if (!ext2fs_test_block_bitmap2(bmap, *block_nr))
1442 new_blk = translate_block(*block_nr);
1444 *block_nr = new_blk;
1446 * This will force the ext2fs_write_inode in the iterator
1448 ret |= BLOCK_CHANGED;
1454 static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
1456 errcode_t retval = 0;
1459 char *block_buf = 0;
1460 struct ext2_inode inode;
1461 ext2_inode_scan scan = NULL;
1463 retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf);
1467 retval = ext2fs_open_inode_scan(fs, 0, &scan);
1472 retval = ext2fs_get_next_inode(scan, &ino, &inode);
1479 if (inode.i_links_count == 0)
1480 continue; /* inode not in use */
1483 * If we end up modifying the journal inode
1484 * the sb->s_jnl_blocks will differ. But a
1485 * subsequent e2fsck fixes that.
1486 * Do we need to fix this ??
1489 if (ext2fs_file_acl_block(&inode) &&
1490 ext2fs_test_block_bitmap2(bmap,
1491 ext2fs_file_acl_block(&inode))) {
1492 blk = translate_block(ext2fs_file_acl_block(&inode));
1496 ext2fs_file_acl_block_set(&inode, blk);
1499 * Write the inode to disk so that inode table
1502 retval = ext2fs_write_inode(fs, ino, &inode);
1507 if (!ext2fs_inode_has_valid_blocks(&inode))
1510 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf,
1511 process_block, bmap);
1518 ext2fs_free_mem(&block_buf);
1524 * We need to scan for inode and block bitmaps that may need to be
1525 * moved. This can take place if the filesystem was formatted for
1526 * RAID arrays using the mke2fs's extended option "stride".
1528 static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
1533 for (i = 0; i < fs->group_desc_count; i++) {
1534 blk = ext2fs_block_bitmap_loc(fs, i);
1535 if (ext2fs_test_block_bitmap2(bmap, blk)) {
1536 new_blk = translate_block(blk);
1539 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
1542 blk = ext2fs_inode_bitmap_loc(fs, i);
1543 if (ext2fs_test_block_bitmap2(bmap, blk)) {
1544 new_blk = translate_block(blk);
1547 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
1553 static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
1558 int new_ino_blks_per_grp;
1560 char *old_itable = NULL, *new_itable = NULL;
1561 char *tmp_old_itable = NULL, *tmp_new_itable = NULL;
1562 unsigned long old_ino_size;
1563 int old_itable_size, new_itable_size;
1565 old_itable_size = fs->inode_blocks_per_group * fs->blocksize;
1566 old_ino_size = EXT2_INODE_SIZE(fs->super);
1568 new_ino_blks_per_grp = ext2fs_div_ceil(
1569 EXT2_INODES_PER_GROUP(fs->super) *
1573 new_itable_size = new_ino_blks_per_grp * fs->blocksize;
1575 retval = ext2fs_get_mem(old_itable_size, &old_itable);
1579 retval = ext2fs_get_mem(new_itable_size, &new_itable);
1583 tmp_old_itable = old_itable;
1584 tmp_new_itable = new_itable;
1586 for (i = 0; i < fs->group_desc_count; i++) {
1587 blk = ext2fs_inode_table_loc(fs, i);
1588 retval = io_channel_read_blk64(fs->io, blk,
1589 fs->inode_blocks_per_group, old_itable);
1593 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) {
1594 memcpy(new_itable, old_itable, old_ino_size);
1596 memset(new_itable+old_ino_size, 0,
1597 new_ino_size - old_ino_size);
1599 new_itable += new_ino_size;
1600 old_itable += old_ino_size;
1603 /* reset the pointer */
1604 old_itable = tmp_old_itable;
1605 new_itable = tmp_new_itable;
1607 retval = io_channel_write_blk64(fs->io, blk,
1608 new_ino_blks_per_grp, new_itable);
1613 /* Update the meta data */
1614 fs->inode_blocks_per_group = new_ino_blks_per_grp;
1615 fs->super->s_inode_size = new_ino_size;
1619 ext2fs_free_mem(&old_itable);
1622 ext2fs_free_mem(&new_itable);
1627 static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
1631 unsigned int group = 0;
1632 unsigned int count = 0;
1637 * First calculate the block statistics
1639 for (blk = fs->super->s_first_data_block;
1640 blk < ext2fs_blocks_count(fs->super); blk++) {
1641 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) {
1646 if ((count == fs->super->s_blocks_per_group) ||
1647 (blk == ext2fs_blocks_count(fs->super)-1)) {
1648 ext2fs_bg_free_blocks_count_set(fs, group++,
1654 total_free = EXT2FS_C2B(fs, total_free);
1655 ext2fs_free_blocks_count_set(fs->super, total_free);
1658 * Next, calculate the inode statistics
1665 /* Protect loop from wrap-around if s_inodes_count maxed */
1666 for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) {
1667 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) {
1672 if ((count == fs->super->s_inodes_per_group) ||
1673 (ino == fs->super->s_inodes_count)) {
1674 ext2fs_bg_free_inodes_count_set(fs, group++,
1680 fs->super->s_free_inodes_count = total_free;
1681 ext2fs_mark_super_dirty(fs);
1685 #define list_for_each_safe(pos, pnext, head) \
1686 for (pos = (head)->next, pnext = pos->next; pos != (head); \
1687 pos = pnext, pnext = pos->next)
1689 static void free_blk_move_list(void)
1691 struct list_head *entry, *tmp;
1692 struct blk_move *bmv;
1694 list_for_each_safe(entry, tmp, &blk_move_list) {
1695 bmv = list_entry(entry, struct blk_move, list);
1697 ext2fs_free_mem(&bmv);
1702 static int resize_inode(ext2_filsys fs, unsigned long new_size)
1705 int new_ino_blks_per_grp;
1706 ext2fs_block_bitmap bmap;
1708 retval = ext2fs_read_inode_bitmap(fs);
1710 fputs(_("Failed to read inode bitmap\n"), stderr);
1713 retval = ext2fs_read_block_bitmap(fs);
1715 fputs(_("Failed to read block bitmap\n"), stderr);
1718 INIT_LIST_HEAD(&blk_move_list);
1721 new_ino_blks_per_grp = ext2fs_div_ceil(
1722 EXT2_INODES_PER_GROUP(fs->super)*
1726 /* We may change the file system.
1727 * Mark the file system as invalid so that
1728 * the user is prompted to run fsck.
1730 fs->super->s_state &= ~EXT2_VALID_FS;
1732 retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"),
1735 fputs(_("Failed to allocate block bitmap when "
1736 "increasing inode size\n"), stderr);
1739 retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap);
1741 fputs(_("Not enough space to increase inode size \n"), stderr);
1744 retval = move_block(fs, bmap);
1746 fputs(_("Failed to relocate blocks during inode resize \n"),
1750 retval = inode_scan_and_fix(fs, bmap);
1754 retval = group_desc_scan_and_fix(fs, bmap);
1758 retval = expand_inode_table(fs, new_size);
1762 ext2fs_calculate_summary_stats(fs);
1764 fs->super->s_state |= EXT2_VALID_FS;
1765 /* mark super block and block bitmap as dirty */
1766 ext2fs_mark_super_dirty(fs);
1767 ext2fs_mark_bb_dirty(fs);
1770 free_blk_move_list();
1771 ext2fs_free_block_bitmap(bmap);
1776 free_blk_move_list();
1777 ext2fs_free_block_bitmap(bmap);
1778 fputs(_("Error in resizing the inode size.\n"
1779 "Run e2undo to undo the "
1780 "file system changes. \n"), stderr);
1785 static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
1787 errcode_t retval = 0;
1788 const char *tdb_dir;
1790 char *dev_name, *tmp_name;
1794 * Configuration via a conf file would be
1797 profile_get_string(profile, "scratch_files",
1801 tmp_name = strdup(name);
1804 com_err(program_name, ENOMEM,
1805 _("Couldn't allocate memory for tdb filename\n"));
1808 dev_name = basename(tmp_name);
1810 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1812 tdb_dir = "/var/lib/e2fsprogs";
1814 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1815 access(tdb_dir, W_OK))
1818 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
1821 sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name);
1823 if (!access(tdb_file, F_OK)) {
1824 if (unlink(tdb_file) < 0) {
1826 com_err(program_name, retval,
1827 _("while trying to delete %s"),
1834 set_undo_io_backing_manager(*io_ptr);
1835 *io_ptr = undo_io_manager;
1836 set_undo_io_backup_file(tdb_file);
1837 printf(_("To undo the tune2fs operation please run "
1838 "the command\n e2undo %s %s\n\n"),
1845 int main(int argc, char **argv)
1849 struct ext2_super_block *sb;
1850 io_manager io_ptr, io_ptr_orig = NULL;
1854 setlocale(LC_MESSAGES, "");
1855 setlocale(LC_CTYPE, "");
1856 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1857 textdomain(NLS_CAT_NAME);
1858 set_com_err_gettext(gettext);
1861 program_name = *argv;
1862 add_error_table(&et_ext2_error_table);
1864 #ifdef CONFIG_BUILD_FINDFS
1865 if (strcmp(get_progname(argv[0]), "findfs") == 0)
1866 do_findfs(argc, argv);
1868 if (strcmp(get_progname(argv[0]), "e2label") == 0)
1869 parse_e2label_options(argc, argv);
1871 parse_tune2fs_options(argc, argv);
1873 #ifdef CONFIG_TESTIO_DEBUG
1874 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) {
1875 io_ptr = test_io_manager;
1876 test_io_backing_manager = unix_io_manager;
1879 io_ptr = unix_io_manager;
1882 if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag)
1883 open_flag |= EXT2_FLAG_SKIP_MMP;
1885 open_flag |= EXT2_FLAG_64BITS;
1887 /* keep the filesystem struct around to dump MMP data */
1888 open_flag |= EXT2_FLAG_NOFREE_ON_ERROR;
1890 retval = ext2fs_open2(device_name, io_options, open_flag,
1893 com_err(program_name, retval,
1894 _("while trying to open %s"),
1896 if (retval == EXT2_ET_MMP_FSCK_ON ||
1897 retval == EXT2_ET_MMP_UNKNOWN_SEQ)
1898 dump_mmp_msg(fs->mmp_buf,
1899 _("If you are sure the filesystem "
1900 "is not in use on any node, run:\n"
1901 "'tune2fs -f -E clear_mmp {device}'\n"));
1902 else if (retval == EXT2_ET_MMP_FAILED)
1903 dump_mmp_msg(fs->mmp_buf, NULL);
1904 else if (retval == EXT2_ET_MMP_MAGIC_INVALID)
1906 _("MMP block magic is bad. Try to fix it by "
1907 "running:\n'e2fsck -f %s'\n"), device_name);
1908 else if (retval != EXT2_ET_MMP_FAILED)
1910 _("Couldn't find valid filesystem superblock.\n"));
1916 if (I_flag && !io_ptr_orig) {
1918 * Check the inode size is right so we can issue an
1919 * error message and bail before setting up the tdb
1922 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) {
1923 fprintf(stderr, _("The inode size is already %lu\n"),
1928 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) {
1929 fprintf(stderr, _("Shrinking the inode size is "
1930 "not supported\n"));
1936 * If inode resize is requested use the
1939 io_ptr_orig = io_ptr;
1940 retval = tune2fs_setup_tdb(device_name, &io_ptr);
1945 if (io_ptr != io_ptr_orig) {
1952 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1955 /* For e2label emulation */
1956 printf("%.*s\n", (int) sizeof(sb->s_volume_name),
1958 remove_error_table(&et_ext2_error_table);
1962 retval = ext2fs_check_if_mounted(device_name, &mount_flags);
1964 com_err("ext2fs_check_if_mount", retval,
1965 _("while determining whether %s is mounted."),
1970 /* Normally we only need to write out the superblock */
1971 fs->flags |= EXT2_FLAG_SUPER_ONLY;
1974 sb->s_max_mnt_count = max_mount_count;
1975 ext2fs_mark_super_dirty(fs);
1976 printf(_("Setting maximal mount count to %d\n"),
1980 sb->s_mnt_count = mount_count;
1981 ext2fs_mark_super_dirty(fs);
1982 printf(_("Setting current mount count to %d\n"), mount_count);
1985 sb->s_errors = errors;
1986 ext2fs_mark_super_dirty(fs);
1987 printf(_("Setting error behavior to %d\n"), errors);
1990 sb->s_def_resgid = resgid;
1991 ext2fs_mark_super_dirty(fs);
1992 printf(_("Setting reserved blocks gid to %lu\n"), resgid);
1995 if (interval >= (1ULL << 32)) {
1996 com_err(program_name, 0,
1997 _("interval between checks is too big (%lu)"),
2002 sb->s_checkinterval = interval;
2003 ext2fs_mark_super_dirty(fs);
2004 printf(_("Setting interval between checks to %lu seconds\n"),
2008 ext2fs_r_blocks_count_set(sb, reserved_ratio *
2009 ext2fs_blocks_count(sb) / 100.0);
2010 ext2fs_mark_super_dirty(fs);
2011 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"),
2012 reserved_ratio, ext2fs_r_blocks_count(sb));
2015 if (reserved_blocks > ext2fs_blocks_count(sb)/2) {
2016 com_err(program_name, 0,
2017 _("reserved blocks count is too big (%llu)"),
2022 ext2fs_r_blocks_count_set(sb, reserved_blocks);
2023 ext2fs_mark_super_dirty(fs);
2024 printf(_("Setting reserved blocks count to %llu\n"),
2028 if (sb->s_feature_ro_compat &
2029 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)
2030 fputs(_("\nThe filesystem already has sparse "
2031 "superblocks.\n"), stderr);
2033 sb->s_feature_ro_compat |=
2034 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
2035 sb->s_state &= ~EXT2_VALID_FS;
2036 ext2fs_mark_super_dirty(fs);
2037 printf(_("\nSparse superblock flag set. %s"),
2042 fputs(_("\nClearing the sparse superflag not supported.\n"),
2048 sb->s_lastcheck = last_check_time;
2049 ext2fs_mark_super_dirty(fs);
2050 printf(_("Setting time filesystem last checked to %s\n"),
2051 ctime(&last_check_time));
2054 sb->s_def_resuid = resuid;
2055 ext2fs_mark_super_dirty(fs);
2056 printf(_("Setting reserved blocks uid to %lu\n"), resuid);
2059 if (strlen(new_label) > sizeof(sb->s_volume_name))
2060 fputs(_("Warning: label too long, truncating.\n"),
2062 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
2063 strncpy(sb->s_volume_name, new_label,
2064 sizeof(sb->s_volume_name));
2065 ext2fs_mark_super_dirty(fs);
2068 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted));
2069 strncpy(sb->s_last_mounted, new_last_mounted,
2070 sizeof(sb->s_last_mounted));
2071 ext2fs_mark_super_dirty(fs);
2074 rc = update_mntopts(fs, mntopts_cmd);
2079 rc = update_feature_set(fs, features_cmd);
2084 rc = parse_extended_opts(fs, extended_cmd);
2087 if (clear_mmp && !f_flag) {
2088 fputs(_("Error in using clear_mmp. "
2089 "It must be used with -f\n"),
2095 rc = ext2fs_mmp_clear(fs);
2098 if (journal_size || journal_device) {
2099 rc = add_journal(fs);
2105 if (mount_flags & EXT2_MF_MOUNTED) {
2106 fputs(_("The quota feature may only be changed when "
2107 "the filesystem is unmounted.\n"), stderr);
2111 handle_quota_options(fs);
2118 if (sb->s_feature_ro_compat &
2119 EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
2121 * Determine if the block group checksums are
2122 * correct so we know whether or not to set
2125 for (i = 0; i < fs->group_desc_count; i++)
2126 if (!ext2fs_group_desc_csum_verify(fs, i))
2128 if (i >= fs->group_desc_count)
2131 if ((strcasecmp(new_UUID, "null") == 0) ||
2132 (strcasecmp(new_UUID, "clear") == 0)) {
2133 uuid_clear(sb->s_uuid);
2134 } else if (strcasecmp(new_UUID, "time") == 0) {
2135 uuid_generate_time(sb->s_uuid);
2136 } else if (strcasecmp(new_UUID, "random") == 0) {
2137 uuid_generate(sb->s_uuid);
2138 } else if (uuid_parse(new_UUID, sb->s_uuid)) {
2139 com_err(program_name, 0, _("Invalid UUID format\n"));
2144 for (i = 0; i < fs->group_desc_count; i++)
2145 ext2fs_group_desc_csum_set(fs, i);
2146 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
2148 ext2fs_mark_super_dirty(fs);
2151 if (mount_flags & EXT2_MF_MOUNTED) {
2152 fputs(_("The inode size may only be "
2153 "changed when the filesystem is "
2154 "unmounted.\n"), stderr);
2158 if (fs->super->s_feature_incompat &
2159 EXT4_FEATURE_INCOMPAT_FLEX_BG) {
2160 fputs(_("Changing the inode size not supported for "
2161 "filesystems with the flex_bg\n"
2162 "feature enabled.\n"),
2168 * We want to update group descriptor also
2169 * with the new free inode count
2171 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
2172 if (resize_inode(fs, new_inode_size) == 0) {
2173 printf(_("Setting inode size %lu\n"),
2176 printf(_("Failed to change inode size\n"));
2185 sb->s_raid_stride = stride;
2186 ext2fs_mark_super_dirty(fs);
2187 printf(_("Setting stride size to %d\n"), stride);
2189 if (stripe_width_set) {
2190 sb->s_raid_stripe_width = stripe_width;
2191 ext2fs_mark_super_dirty(fs);
2192 printf(_("Setting stripe width to %d\n"), stripe_width);
2194 if (ext_mount_opts) {
2195 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts,
2196 sizeof(fs->super->s_mount_opts));
2197 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0;
2198 ext2fs_mark_super_dirty(fs);
2199 printf(_("Setting extended default mount options to '%s'\n"),
2201 free(ext_mount_opts);
2204 remove_error_table(&et_ext2_error_table);
2208 ext2fs_mmp_stop(fs);
2212 return (ext2fs_close(fs) ? 1 : 0);