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() */
44 #include <strings.h> /* for strcasecmp() */
46 #define _BSD_SOURCE /* for inclusion of strcasecmp() via <string.h> */
47 #define _DEFAULT_SOURCE /* since glibc 2.20 _BSD_SOURCE is deprecated */
52 #include <sys/types.h>
56 #include "ext2fs/ext2_fs.h"
57 #include "ext2fs/ext2fs.h"
58 #include "ext2fs/kernel-jbd.h"
59 #include "et/com_err.h"
60 #include "support/plausible.h"
61 #include "support/quotaio.h"
62 #include "uuid/uuid.h"
65 #include "blkid/blkid.h"
67 #include "../version.h"
68 #include "support/nls-enable.h"
70 #define QOPT_ENABLE (1)
71 #define QOPT_DISABLE (-1)
73 extern int ask_yn(const char *string, int def);
75 const char *program_name = "tune2fs";
77 char *new_label, *new_last_mounted, *new_UUID;
79 static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag;
80 static int m_flag, M_flag, Q_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag;
83 static time_t last_check_time;
84 static int print_label;
85 static int max_mount_count, mount_count, mount_flags;
86 static unsigned long interval;
87 static blk64_t reserved_blocks;
88 static double reserved_ratio;
89 static unsigned long resgid, resuid;
90 static unsigned short errors;
92 static char *features_cmd;
93 static char *mntopts_cmd;
94 static int stride, stripe_width;
95 static int stride_set, stripe_width_set;
96 static char *extended_cmd;
97 static unsigned long new_inode_size;
98 static char *ext_mount_opts;
99 static int quota_enable[MAXQUOTAS];
100 static int rewrite_checksums;
101 static int feature_64bit;
102 static int fsck_requested;
103 static char *undo_file;
105 int journal_size, journal_flags;
106 char *journal_device;
107 static blk64_t journal_location = ~0LL;
109 static struct list_head blk_move_list;
112 struct list_head list;
117 errcode_t ext2fs_run_ext3_journal(ext2_filsys *fs);
119 static const char *please_fsck = N_("Please run e2fsck -f on the filesystem.\n");
120 static const char *please_dir_fsck =
121 N_("Please run e2fsck -fD on the filesystem.\n");
123 #ifdef CONFIG_BUILD_FINDFS
124 void do_findfs(int argc, char **argv);
127 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
128 int journal_enable_debug = -1;
131 static void usage(void)
134 _("Usage: %s [-c max_mounts_count] [-e errors_behavior] [-f] "
136 "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n"
137 "\t[-m reserved_blocks_percent] [-o [^]mount_options[,...]]\n"
138 "\t[-p mmp_update_interval] [-r reserved_blocks_count] "
140 "\t[-C mount_count] [-L volume_label] [-M last_mounted_dir]\n"
141 "\t[-O [^]feature[,...]] [-Q quota_options]\n"
142 "\t[-E extended-option[,...]] [-T last_check_time] "
143 "[-U UUID]\n\t[-I new_inode_size] [-z undo_file] device\n"),
148 static __u32 ok_features[3] = {
150 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
151 EXT2_FEATURE_COMPAT_DIR_INDEX,
153 EXT2_FEATURE_INCOMPAT_FILETYPE |
154 EXT3_FEATURE_INCOMPAT_EXTENTS |
155 EXT4_FEATURE_INCOMPAT_FLEX_BG |
156 EXT4_FEATURE_INCOMPAT_MMP |
157 EXT4_FEATURE_INCOMPAT_64BIT |
158 EXT4_FEATURE_INCOMPAT_ENCRYPT |
159 EXT4_FEATURE_INCOMPAT_CSUM_SEED,
161 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
162 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
163 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
164 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
165 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
166 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER |
167 EXT4_FEATURE_RO_COMPAT_QUOTA |
168 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM |
169 EXT4_FEATURE_RO_COMPAT_READONLY |
170 EXT4_FEATURE_RO_COMPAT_PROJECT
173 static __u32 clear_ok_features[3] = {
175 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
176 EXT2_FEATURE_COMPAT_RESIZE_INODE |
177 EXT2_FEATURE_COMPAT_DIR_INDEX,
179 EXT2_FEATURE_INCOMPAT_FILETYPE |
180 EXT4_FEATURE_INCOMPAT_FLEX_BG |
181 EXT4_FEATURE_INCOMPAT_MMP |
182 EXT4_FEATURE_INCOMPAT_64BIT |
183 EXT4_FEATURE_INCOMPAT_CSUM_SEED,
185 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
186 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
187 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
188 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
189 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
190 EXT4_FEATURE_RO_COMPAT_QUOTA |
191 EXT4_FEATURE_RO_COMPAT_PROJECT |
192 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM |
193 EXT4_FEATURE_RO_COMPAT_READONLY
197 * Try to get journal super block if any
199 static int get_journal_sb(ext2_filsys jfs, char buf[SUPERBLOCK_SIZE])
202 journal_superblock_t *jsb;
204 if (!ext2fs_has_feature_journal_dev(jfs->super)) {
205 return EXT2_ET_UNSUPP_FEATURE;
208 /* Get the journal superblock */
209 if ((retval = io_channel_read_blk64(jfs->io,
210 ext2fs_journal_sb_start(jfs->blocksize), -SUPERBLOCK_SIZE, buf))) {
211 com_err(program_name, retval, "%s",
212 _("while reading journal superblock"));
216 jsb = (journal_superblock_t *) buf;
217 if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) ||
218 (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) {
219 fputs(_("Journal superblock not found!\n"), stderr);
220 return EXT2_ET_BAD_MAGIC;
226 static __u8 *journal_user(__u8 uuid[UUID_SIZE], __u8 s_users[JFS_USERS_SIZE],
230 for (i = 0; i < nr_users; i++) {
231 if (memcmp(uuid, &s_users[i * UUID_SIZE], UUID_SIZE) == 0)
232 return &s_users[i * UUID_SIZE];
239 * Remove an external journal from the filesystem
241 static int remove_journal_device(ext2_filsys fs)
245 char buf[SUPERBLOCK_SIZE] __attribute__ ((aligned(8)));
246 journal_superblock_t *jsb;
249 int commit_remove_journal = 0;
253 commit_remove_journal = 1; /* force removal even if error */
255 uuid_unparse(fs->super->s_journal_uuid, buf);
256 journal_path = blkid_get_devname(NULL, "UUID", buf);
260 ext2fs_find_block_device(fs->super->s_journal_dev);
262 goto no_valid_journal;
265 #ifdef CONFIG_TESTIO_DEBUG
266 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
267 io_ptr = test_io_manager;
268 test_io_backing_manager = unix_io_manager;
271 io_ptr = unix_io_manager;
272 retval = ext2fs_open(journal_path, EXT2_FLAG_RW|
273 EXT2_FLAG_JOURNAL_DEV_OK, 0,
274 fs->blocksize, io_ptr, &jfs);
276 com_err(program_name, retval, "%s",
277 _("while trying to open external journal"));
278 goto no_valid_journal;
281 if ((retval = get_journal_sb(jfs, buf))) {
282 if (retval == EXT2_ET_UNSUPP_FEATURE)
283 fprintf(stderr, _("%s is not a journal device.\n"),
285 goto no_valid_journal;
288 jsb = (journal_superblock_t *) buf;
289 /* Find the filesystem UUID */
290 nr_users = ntohl(jsb->s_nr_users);
292 if (!journal_user(fs->super->s_uuid, jsb->s_users, nr_users)) {
293 fputs(_("Filesystem's UUID not found on journal device.\n"),
295 commit_remove_journal = 1;
296 goto no_valid_journal;
299 for (i = 0; i < nr_users; i++)
300 memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16);
301 jsb->s_nr_users = htonl(nr_users);
303 /* Write back the journal superblock */
304 retval = io_channel_write_blk64(jfs->io,
305 ext2fs_journal_sb_start(fs->blocksize),
306 -SUPERBLOCK_SIZE, buf);
308 com_err(program_name, retval,
309 "while writing journal superblock.");
310 goto no_valid_journal;
313 commit_remove_journal = 1;
316 if (commit_remove_journal == 0) {
317 fputs(_("Cannot locate journal device. It was NOT removed\n"
318 "Use -f option to remove missing journal device.\n"),
322 fs->super->s_journal_dev = 0;
323 memset(fs->super->s_jnl_blocks, 0, sizeof(fs->super->s_jnl_blocks));
324 uuid_clear(fs->super->s_journal_uuid);
325 ext2fs_mark_super_dirty(fs);
326 fputs(_("Journal removed\n"), stdout);
332 /* Helper function for remove_journal_inode */
333 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
334 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
335 blk64_t ref_block EXT2FS_ATTR((unused)),
336 int ref_offset EXT2FS_ATTR((unused)),
337 void *private EXT2FS_ATTR((unused)))
343 ext2fs_unmark_block_bitmap2(fs->block_map, block);
344 group = ext2fs_group_of_blk2(fs, block);
345 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
346 ext2fs_group_desc_csum_set(fs, group);
347 ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs));
352 * Remove the journal inode from the filesystem
354 static errcode_t remove_journal_inode(ext2_filsys fs)
356 struct ext2_inode inode;
358 ino_t ino = fs->super->s_journal_inum;
360 retval = ext2fs_read_inode(fs, ino, &inode);
362 com_err(program_name, retval, "%s",
363 _("while reading journal inode"));
366 if (ino == EXT2_JOURNAL_INO) {
367 retval = ext2fs_read_bitmaps(fs);
369 com_err(program_name, retval, "%s",
370 _("while reading bitmaps"));
373 retval = ext2fs_block_iterate3(fs, ino,
374 BLOCK_FLAG_READ_ONLY, NULL,
375 release_blocks_proc, NULL);
377 com_err(program_name, retval, "%s",
378 _("while clearing journal inode"));
381 memset(&inode, 0, sizeof(inode));
382 ext2fs_mark_bb_dirty(fs);
383 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
385 inode.i_flags &= ~EXT2_IMMUTABLE_FL;
386 retval = ext2fs_write_inode(fs, ino, &inode);
388 com_err(program_name, retval, "%s",
389 _("while writing journal inode"));
392 fs->super->s_journal_inum = 0;
393 memset(fs->super->s_jnl_blocks, 0, sizeof(fs->super->s_jnl_blocks));
394 ext2fs_mark_super_dirty(fs);
400 * Update the default mount options
402 static int update_mntopts(ext2_filsys fs, char *mntopts)
404 struct ext2_super_block *sb = fs->super;
406 if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) {
407 fprintf(stderr, _("Invalid mount option set: %s\n"),
411 ext2fs_mark_super_dirty(fs);
416 static void check_fsck_needed(ext2_filsys fs, const char *prompt)
418 /* Refuse to modify anything but a freshly checked valid filesystem. */
419 if (!(fs->super->s_state & EXT2_VALID_FS) ||
420 (fs->super->s_state & EXT2_ERROR_FS) ||
421 (fs->super->s_lastcheck < fs->super->s_mtime)) {
422 printf("\n%s\n", _(please_fsck));
423 if (mount_flags & EXT2_MF_READONLY)
424 printf("%s", _("(and reboot afterwards!)\n"));
428 /* Give the admin a few seconds to bail out of a dangerous op. */
429 if (!getenv("TUNE2FS_FORCE_PROMPT") && (!isatty(0) || !isatty(1)))
436 static void request_dir_fsck_afterwards(ext2_filsys fs)
438 static int requested;
443 fs->super->s_state &= ~EXT2_VALID_FS;
444 printf("\n%s\n", _(please_dir_fsck));
445 if (mount_flags & EXT2_MF_READONLY)
446 printf("%s", _("(and reboot afterwards!)\n"));
449 static void request_fsck_afterwards(ext2_filsys fs)
451 static int requested = 0;
456 fs->super->s_state &= ~EXT2_VALID_FS;
457 printf("\n%s\n", _(please_fsck));
458 if (mount_flags & EXT2_MF_READONLY)
459 printf("%s", _("(and reboot afterwards!)\n"));
462 static void convert_64bit(ext2_filsys fs, int direction)
468 * Is resize2fs going to demand a fsck run? Might as well tell the
471 if (!fsck_requested &&
472 ((fs->super->s_state & EXT2_ERROR_FS) ||
473 !(fs->super->s_state & EXT2_VALID_FS) ||
474 fs->super->s_lastcheck < fs->super->s_mtime))
475 request_fsck_afterwards(fs);
477 fprintf(stderr, _("After running e2fsck, please run `resize2fs %s %s"),
478 direction > 0 ? "-b" : "-s", fs->device_name);
480 fprintf(stderr, _("Please run `resize2fs %s %s"),
481 direction > 0 ? "-b" : "-s", fs->device_name);
484 fprintf(stderr, _(" -z \"%s\""), undo_file);
486 fprintf(stderr, _("' to enable 64-bit mode.\n"));
488 fprintf(stderr, _("' to disable 64-bit mode.\n"));
491 /* Rewrite extents */
492 static errcode_t rewrite_extents(ext2_filsys fs, ext2_ino_t ino,
493 struct ext2_inode *inode)
495 ext2_extent_handle_t handle;
496 struct ext2fs_extent extent;
498 struct ext2_extent_info info;
500 if (!(inode->i_flags & EXT4_EXTENTS_FL) ||
501 !ext2fs_has_feature_metadata_csum(fs->super))
504 errcode = ext2fs_extent_open(fs, ino, &handle);
508 errcode = ext2fs_extent_get(handle, EXT2_EXTENT_ROOT, &extent);
513 errcode = ext2fs_extent_get_info(handle, &info);
518 * If this is the first extent in an extent block that we
519 * haven't visited, rewrite the extent to force the ETB
520 * checksum to be rewritten.
522 if (info.curr_entry == 1 && info.curr_level != 0 &&
523 !(extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)) {
524 errcode = ext2fs_extent_replace(handle, 0, &extent);
529 /* Skip to the end of a block of leaf nodes */
530 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
531 errcode = ext2fs_extent_get(handle,
532 EXT2_EXTENT_LAST_SIB,
538 errcode = ext2fs_extent_get(handle, EXT2_EXTENT_NEXT, &extent);
539 } while (errcode == 0);
542 /* Ok if we run off the end */
543 if (errcode == EXT2_ET_EXTENT_NO_NEXT)
545 ext2fs_extent_free(handle);
550 * Rewrite directory blocks with checksums
552 struct rewrite_dir_context {
559 static int rewrite_dir_block(ext2_filsys fs,
561 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
562 blk64_t ref_block EXT2FS_ATTR((unused)),
563 int ref_offset EXT2FS_ATTR((unused)),
566 struct ext2_dx_countlimit *dcl = NULL;
567 struct rewrite_dir_context *ctx = priv_data;
568 int dcl_offset, changed = 0;
570 ctx->errcode = ext2fs_read_dir_block4(fs, *blocknr, ctx->buf, 0,
575 /* if htree node... */
577 ext2fs_get_dx_countlimit(fs, (struct ext2_dir_entry *)ctx->buf,
580 if (!ext2fs_has_feature_metadata_csum(fs->super)) {
581 /* Ensure limit is the max size */
582 int max_entries = (fs->blocksize - dcl_offset) /
583 sizeof(struct ext2_dx_entry);
584 if (ext2fs_le16_to_cpu(dcl->limit) != max_entries) {
586 dcl->limit = ext2fs_cpu_to_le16(max_entries);
589 /* If htree block is full then rebuild the dir */
590 if (ext2fs_le16_to_cpu(dcl->count) ==
591 ext2fs_le16_to_cpu(dcl->limit)) {
592 request_dir_fsck_afterwards(fs);
596 * Ensure dcl->limit is small enough to leave room for
599 int max_entries = (fs->blocksize - (dcl_offset +
600 sizeof(struct ext2_dx_tail))) /
601 sizeof(struct ext2_dx_entry);
602 if (ext2fs_le16_to_cpu(dcl->limit) != max_entries)
603 dcl->limit = ext2fs_cpu_to_le16(max_entries);
604 /* Always rewrite checksum */
608 unsigned int rec_len, name_size;
609 char *top = ctx->buf + fs->blocksize;
610 struct ext2_dir_entry *de = (struct ext2_dir_entry *)ctx->buf;
611 struct ext2_dir_entry *last_de = NULL, *penultimate_de = NULL;
613 /* Find last and penultimate dirent */
614 while ((char *)de < top) {
615 penultimate_de = last_de;
617 ctx->errcode = ext2fs_get_rec_len(fs, de, &rec_len);
618 if (!ctx->errcode && !rec_len)
619 ctx->errcode = EXT2_ET_DIR_CORRUPTED;
622 de = (struct ext2_dir_entry *)(((char *)de) + rec_len);
624 ctx->errcode = ext2fs_get_rec_len(fs, last_de, &rec_len);
627 name_size = ext2fs_dirent_name_len(last_de);
629 if (!ext2fs_has_feature_metadata_csum(fs->super)) {
632 if (last_de->inode ||
634 rec_len != sizeof(struct ext2_dir_entry_tail))
637 * The last dirent is unused and the right length to
638 * have stored a checksum. Erase it.
640 ctx->errcode = ext2fs_get_rec_len(fs, penultimate_de,
643 ctx->errcode = EXT2_ET_DIR_CORRUPTED;
646 ext2fs_set_rec_len(fs, rec_len +
647 sizeof(struct ext2_dir_entry_tail),
651 unsigned csum_size = sizeof(struct ext2_dir_entry_tail);
652 struct ext2_dir_entry_tail *t;
655 * If the last dirent looks like the tail, just update
658 if (!last_de->inode &&
659 rec_len == csum_size) {
660 t = (struct ext2_dir_entry_tail *)last_de;
661 t->det_reserved_name_len =
662 EXT2_DIR_NAME_LEN_CSUM;
667 name_size = (name_size & ~3) + 4;
668 /* If there's not enough space for the tail, e2fsck */
669 if (rec_len <= (8 + name_size + csum_size)) {
670 request_dir_fsck_afterwards(fs);
673 /* Shorten that last de and insert the tail */
674 ext2fs_set_rec_len(fs, rec_len - csum_size, last_de);
675 t = EXT2_DIRENT_TAIL(ctx->buf, fs->blocksize);
676 ext2fs_initialize_dirent_tail(fs, t);
678 /* Always update checksum */
687 ctx->errcode = ext2fs_write_dir_block4(fs, *blocknr, ctx->buf,
695 static errcode_t rewrite_directory(ext2_filsys fs, ext2_ino_t dir,
696 struct ext2_inode *inode)
699 struct rewrite_dir_context ctx;
701 retval = ext2fs_get_mem(fs->blocksize, &ctx.buf);
705 ctx.is_htree = (inode->i_flags & EXT2_INDEX_FL);
708 retval = ext2fs_block_iterate3(fs, dir, BLOCK_FLAG_READ_ONLY |
709 BLOCK_FLAG_DATA_ONLY,
710 0, rewrite_dir_block, &ctx);
712 ext2fs_free_mem(&ctx.buf);
720 * Forcibly set checksums in all inodes.
722 static void rewrite_inodes(ext2_filsys fs)
724 int length = EXT2_INODE_SIZE(fs->super);
725 struct ext2_inode *inode, *zero;
727 ext2_inode_scan scan;
730 blk64_t file_acl_block;
733 if (fs->super->s_creator_os == EXT2_OS_HURD)
736 retval = ext2fs_open_inode_scan(fs, 0, &scan);
738 com_err("set_csum", retval, "while opening inode scan");
742 retval = ext2fs_get_mem(length, &inode);
744 com_err("set_csum", retval, "while allocating memory");
748 retval = ext2fs_get_memzero(length, &zero);
750 com_err("set_csum", retval, "while allocating memory");
754 retval = ext2fs_get_mem(fs->blocksize, &ea_buf);
756 com_err("set_csum", retval, "while allocating memory");
761 retval = ext2fs_get_next_inode_full(scan, &ino, inode, length);
763 com_err("set_csum", retval, "while getting next inode");
768 if (ext2fs_test_inode_bitmap2(fs->inode_map, ino)) {
771 if (memcmp(inode, zero, length) != 0) {
772 memset(inode, 0, length);
780 retval = ext2fs_write_inode_full(fs, ino, inode,
783 com_err("set_csum", retval, "while writing "
789 retval = rewrite_extents(fs, ino, inode);
791 com_err("rewrite_extents", retval,
792 "while rewriting extents");
796 if (LINUX_S_ISDIR(inode->i_mode) &&
797 ext2fs_inode_has_valid_blocks2(fs, inode)) {
798 retval = rewrite_directory(fs, ino, inode);
800 com_err("rewrite_directory", retval,
801 "while rewriting directories");
806 file_acl_block = ext2fs_file_acl_block(fs, inode);
809 retval = ext2fs_read_ext_attr3(fs, file_acl_block, ea_buf, ino);
811 com_err("rewrite_eablock", retval,
812 "while rewriting extended attribute");
815 retval = ext2fs_write_ext_attr3(fs, file_acl_block, ea_buf,
818 com_err("rewrite_eablock", retval,
819 "while rewriting extended attribute");
824 ext2fs_free_mem(&zero);
825 ext2fs_free_mem(&inode);
826 ext2fs_free_mem(&ea_buf);
827 ext2fs_close_inode_scan(scan);
830 static void rewrite_metadata_checksums(ext2_filsys fs)
835 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
836 ext2fs_init_csum_seed(fs);
837 for (i = 0; i < fs->group_desc_count; i++)
838 ext2fs_group_desc_csum_set(fs, i);
839 retval = ext2fs_read_bitmaps(fs);
841 com_err("rewrite_metadata_checksums", retval,
842 "while reading bitmaps");
846 ext2fs_mark_ib_dirty(fs);
847 ext2fs_mark_bb_dirty(fs);
848 ext2fs_mmp_update2(fs, 1);
849 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
850 fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
851 if (ext2fs_has_feature_metadata_csum(fs->super))
852 fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
854 fs->super->s_checksum_type = 0;
855 ext2fs_mark_super_dirty(fs);
858 static void enable_uninit_bg(ext2_filsys fs)
860 struct ext2_group_desc *gd;
863 for (i = 0; i < fs->group_desc_count; i++) {
864 gd = ext2fs_group_desc(fs, fs->group_desc, i);
865 gd->bg_itable_unused = 0;
866 gd->bg_flags = EXT2_BG_INODE_ZEROED;
867 ext2fs_group_desc_csum_set(fs, i);
869 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
872 static errcode_t zero_empty_inodes(ext2_filsys fs)
874 int length = EXT2_INODE_SIZE(fs->super);
875 struct ext2_inode *inode = NULL;
876 ext2_inode_scan scan;
880 retval = ext2fs_open_inode_scan(fs, 0, &scan);
884 retval = ext2fs_get_mem(length, &inode);
889 retval = ext2fs_get_next_inode_full(scan, &ino, inode, length);
894 if (!ext2fs_test_inode_bitmap2(fs->inode_map, ino)) {
895 memset(inode, 0, length);
896 retval = ext2fs_write_inode_full(fs, ino, inode,
904 ext2fs_free_mem(&inode);
905 ext2fs_close_inode_scan(scan);
909 static errcode_t disable_uninit_bg(ext2_filsys fs, __u32 csum_feature_flag)
911 struct ext2_group_desc *gd;
916 /* Load bitmaps to ensure that the uninit ones get written out */
917 fs->super->s_feature_ro_compat |= csum_feature_flag;
918 retval = ext2fs_read_bitmaps(fs);
919 fs->super->s_feature_ro_compat &= ~csum_feature_flag;
921 com_err("disable_uninit_bg", retval,
922 "while reading bitmaps");
923 request_fsck_afterwards(fs);
926 ext2fs_mark_ib_dirty(fs);
927 ext2fs_mark_bb_dirty(fs);
929 /* If we're only turning off uninit_bg, zero the inodes */
930 if (csum_feature_flag == EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
931 retval = zero_empty_inodes(fs);
933 com_err("disable_uninit_bg", retval,
934 "while zeroing unused inodes");
935 request_fsck_afterwards(fs);
940 /* The bbitmap is zeroed; we must mark group metadata blocks in use */
941 for (i = 0; i < fs->group_desc_count; i++) {
942 b = ext2fs_block_bitmap_loc(fs, i);
943 ext2fs_mark_block_bitmap2(fs->block_map, b);
944 b = ext2fs_inode_bitmap_loc(fs, i);
945 ext2fs_mark_block_bitmap2(fs->block_map, b);
947 retval = ext2fs_super_and_bgd_loc2(fs, i, &b, &c, &d, NULL);
948 if (retval == 0 && b)
949 ext2fs_mark_block_bitmap2(fs->block_map, b);
950 if (retval == 0 && c)
951 ext2fs_mark_block_bitmap2(fs->block_map, c);
952 if (retval == 0 && d)
953 ext2fs_mark_block_bitmap2(fs->block_map, d);
955 com_err("disable_uninit_bg", retval,
956 "while initializing block bitmaps");
957 request_fsck_afterwards(fs);
960 gd = ext2fs_group_desc(fs, fs->group_desc, i);
961 gd->bg_itable_unused = 0;
963 ext2fs_group_desc_csum_set(fs, i);
965 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
966 ext2fs_mark_super_dirty(fs);
972 try_confirm_csum_seed_support(void)
974 if (access("/sys/fs/ext4/features/metadata_csum_seed", R_OK))
975 fputs(_("WARNING: Could not confirm kernel support for "
976 "metadata_csum_seed.\n This requires Linux >= "
981 * Update the feature set as provided by the user.
983 static int update_feature_set(ext2_filsys fs, char *features)
985 struct ext2_super_block *sb = fs->super;
986 __u32 old_features[3];
988 unsigned int mask_err;
990 enum quota_type qtype;
992 #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
993 ((&sb->s_feature_compat)[(type)] & (mask)))
994 #define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \
995 !((&sb->s_feature_compat)[(type)] & (mask)))
996 #define FEATURE_CHANGED(type, mask) ((mask) & \
997 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)]))
999 old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat;
1000 old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat;
1001 old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat;
1003 if (e2p_edit_feature2(features, &sb->s_feature_compat,
1004 ok_features, clear_ok_features,
1005 &type_err, &mask_err)) {
1008 _("Invalid filesystem option set: %s\n"),
1010 else if (type_err & E2P_FEATURE_NEGATE_FLAG)
1011 fprintf(stderr, _("Clearing filesystem feature '%s' "
1012 "not supported.\n"),
1013 e2p_feature2string(type_err &
1014 E2P_FEATURE_TYPE_MASK,
1017 fprintf(stderr, _("Setting filesystem feature '%s' "
1018 "not supported.\n"),
1019 e2p_feature2string(type_err, mask_err));
1023 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
1024 if ((mount_flags & EXT2_MF_MOUNTED) &&
1025 !(mount_flags & EXT2_MF_READONLY)) {
1026 fputs(_("The has_journal feature may only be "
1027 "cleared when the filesystem is\n"
1028 "unmounted or mounted "
1029 "read-only.\n"), stderr);
1032 if (ext2fs_has_feature_journal_needs_recovery(sb) &&
1034 fputs(_("The needs_recovery flag is set. "
1035 "Please run e2fsck before clearing\n"
1036 "the has_journal flag.\n"), stderr);
1039 if (sb->s_journal_inum) {
1040 if (remove_journal_inode(fs))
1043 if (sb->s_journal_dev) {
1044 if (remove_journal_device(fs))
1049 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1050 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
1051 if (ext2fs_has_feature_meta_bg(sb)) {
1052 fputs(_("Setting filesystem feature 'sparse_super' "
1053 "not supported\nfor filesystems with "
1054 "the meta_bg feature enabled.\n"),
1060 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
1063 if ((mount_flags & EXT2_MF_MOUNTED) ||
1064 (mount_flags & EXT2_MF_READONLY)) {
1065 fputs(_("The multiple mount protection feature can't\n"
1066 "be set if the filesystem is mounted or\n"
1067 "read-only.\n"), stderr);
1071 error = ext2fs_mmp_init(fs);
1073 fputs(_("\nError while enabling multiple mount "
1074 "protection feature."), stderr);
1079 * We want to update group desc with the new free blocks count
1081 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
1083 printf(_("Multiple mount protection has been enabled "
1084 "with update interval %ds.\n"),
1085 sb->s_mmp_update_interval);
1088 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
1091 if (mount_flags & EXT2_MF_READONLY) {
1092 fputs(_("The multiple mount protection feature cannot\n"
1093 "be disabled if the filesystem is readonly.\n"),
1098 error = ext2fs_read_bitmaps(fs);
1100 fputs(_("Error while reading bitmaps\n"), stderr);
1104 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL);
1106 struct mmp_struct *mmp_cmp = fs->mmp_cmp;
1108 if (error == EXT2_ET_MMP_MAGIC_INVALID)
1109 printf(_("Magic number in MMP block does not "
1110 "match. expected: %x, actual: %x\n"),
1111 EXT4_MMP_MAGIC, mmp_cmp->mmp_magic);
1113 com_err(program_name, error, "%s",
1114 _("while reading MMP block."));
1118 /* We need to force out the group descriptors as well */
1119 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
1120 ext2fs_block_alloc_stats2(fs, sb->s_mmp_block, -1);
1122 sb->s_mmp_block = 0;
1123 sb->s_mmp_update_interval = 0;
1126 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
1128 * If adding a journal flag, let the create journal
1129 * code below handle setting the flag and creating the
1130 * journal. We supply a default size if necessary.
1134 ext2fs_clear_feature_journal(sb);
1137 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) {
1138 if (!sb->s_def_hash_version)
1139 sb->s_def_hash_version = EXT2_HASH_HALF_MD4;
1140 if (uuid_is_null((unsigned char *) sb->s_hash_seed))
1141 uuid_generate((unsigned char *) sb->s_hash_seed);
1144 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
1145 if (ext2fs_check_desc(fs)) {
1146 fputs(_("Clearing the flex_bg flag would "
1147 "cause the the filesystem to be\n"
1148 "inconsistent.\n"), stderr);
1153 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1154 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) {
1155 if ((mount_flags & EXT2_MF_MOUNTED) &&
1156 !(mount_flags & EXT2_MF_READONLY)) {
1157 fputs(_("The huge_file feature may only be "
1158 "cleared when the filesystem is\n"
1159 "unmounted or mounted "
1160 "read-only.\n"), stderr);
1165 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1166 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
1167 check_fsck_needed(fs,
1168 _("Enabling checksums could take some time."));
1169 if (mount_flags & EXT2_MF_MOUNTED) {
1170 fputs(_("Cannot enable metadata_csum on a mounted "
1171 "filesystem!\n"), stderr);
1174 if (!ext2fs_has_feature_extents(fs->super))
1176 _("Extents are not enabled. The file extent "
1177 "tree can be checksummed, whereas block maps "
1178 "cannot. Not enabling extents reduces the "
1179 "coverage of metadata checksumming. "
1180 "Re-run with -O extent to rectify.\n"));
1181 if (!ext2fs_has_feature_64bit(fs->super))
1183 _("64-bit filesystem support is not enabled. "
1184 "The larger fields afforded by this feature "
1185 "enable full-strength checksumming. "
1186 "Run resize2fs -b to rectify.\n"));
1187 rewrite_checksums = 1;
1188 /* metadata_csum supersedes uninit_bg */
1189 ext2fs_clear_feature_gdt_csum(fs->super);
1191 /* if uninit_bg was previously off, rewrite group desc */
1192 if (!(old_features[E2P_FEATURE_RO_INCOMPAT] &
1193 EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
1194 enable_uninit_bg(fs);
1197 * Since metadata_csum supersedes uninit_bg, pretend like
1198 * uninit_bg has been off all along.
1200 old_features[E2P_FEATURE_RO_INCOMPAT] &=
1201 ~EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
1204 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1205 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM)) {
1206 __u32 test_features[3];
1208 check_fsck_needed(fs,
1209 _("Disabling checksums could take some time."));
1210 if (mount_flags & EXT2_MF_MOUNTED) {
1211 fputs(_("Cannot disable metadata_csum on a mounted "
1212 "filesystem!\n"), stderr);
1215 rewrite_checksums = 1;
1217 /* Enable uninit_bg unless the user expressly turned it off */
1218 memcpy(test_features, old_features, sizeof(test_features));
1219 test_features[E2P_FEATURE_RO_INCOMPAT] |=
1220 EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
1221 e2p_edit_feature2(features, test_features, ok_features,
1222 clear_ok_features, NULL, NULL);
1223 if (test_features[E2P_FEATURE_RO_INCOMPAT] &
1224 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)
1225 ext2fs_set_feature_gdt_csum(fs->super);
1228 * If we're turning off metadata_csum and not turning on
1229 * uninit_bg, rewrite group desc.
1231 if (!ext2fs_has_feature_gdt_csum(fs->super)) {
1232 err = disable_uninit_bg(fs,
1233 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM);
1238 * metadata_csum previously provided uninit_bg, so if
1239 * we're also setting the uninit_bg feature bit,
1240 * pretend like it was previously enabled. Checksums
1241 * will be rewritten with crc16 later.
1243 old_features[E2P_FEATURE_RO_INCOMPAT] |=
1244 EXT4_FEATURE_RO_COMPAT_GDT_CSUM;
1245 fs->super->s_checksum_seed = 0;
1246 ext2fs_clear_feature_csum_seed(fs->super);
1249 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1250 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
1251 /* Do not enable uninit_bg when metadata_csum enabled */
1252 if (ext2fs_has_feature_metadata_csum(fs->super))
1253 ext2fs_clear_feature_gdt_csum(fs->super);
1255 enable_uninit_bg(fs);
1258 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1259 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
1260 err = disable_uninit_bg(fs,
1261 EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
1267 * We don't actually toggle 64bit; resize2fs does that. But this
1268 * must come after the metadata_csum feature_on so that it won't
1269 * complain about the lack of 64bit.
1271 if (FEATURE_ON(E2P_FEATURE_INCOMPAT,
1272 EXT4_FEATURE_INCOMPAT_64BIT)) {
1273 if (mount_flags & EXT2_MF_MOUNTED) {
1274 fprintf(stderr, _("Cannot enable 64-bit mode "
1275 "while mounted!\n"));
1278 ext2fs_clear_feature_64bit(sb);
1281 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT,
1282 EXT4_FEATURE_INCOMPAT_64BIT)) {
1283 if (mount_flags & EXT2_MF_MOUNTED) {
1284 fprintf(stderr, _("Cannot disable 64-bit mode "
1285 "while mounted!\n"));
1288 ext2fs_set_feature_64bit(sb);
1292 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1293 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
1295 * Set the Q_flag here and handle the quota options in the code
1300 /* Enable usr/grp quota by default */
1301 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1302 if (qtype != PRJQUOTA)
1303 quota_enable[qtype] = QOPT_ENABLE;
1305 quota_enable[qtype] = QOPT_DISABLE;
1308 ext2fs_clear_feature_quota(sb);
1311 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
1312 EXT4_FEATURE_RO_COMPAT_PROJECT)) {
1313 if (fs->super->s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
1314 fprintf(stderr, _("Cannot enable project feature; "
1315 "inode size too small.\n"));
1319 quota_enable[PRJQUOTA] = QOPT_ENABLE;
1322 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1323 EXT4_FEATURE_RO_COMPAT_PROJECT)) {
1325 quota_enable[PRJQUOTA] = QOPT_DISABLE;
1328 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1329 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
1331 * Set the Q_flag here and handle the quota options in the code
1335 fputs(_("\nWarning: '^quota' option overrides '-Q'"
1336 "arguments.\n"), stderr);
1338 /* Disable all quota by default */
1339 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1340 quota_enable[qtype] = QOPT_DISABLE;
1343 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_ENCRYPT)) {
1344 fs->super->s_encrypt_algos[0] =
1345 EXT4_ENCRYPTION_MODE_AES_256_XTS;
1346 fs->super->s_encrypt_algos[1] =
1347 EXT4_ENCRYPTION_MODE_AES_256_CTS;
1350 if (FEATURE_ON(E2P_FEATURE_INCOMPAT,
1351 EXT4_FEATURE_INCOMPAT_CSUM_SEED)) {
1352 if (!ext2fs_has_feature_metadata_csum(sb)) {
1353 fputs(_("Setting feature 'metadata_csum_seed' "
1354 "is only supported\non filesystems with "
1355 "the metadata_csum feature enabled.\n"),
1359 try_confirm_csum_seed_support();
1360 fs->super->s_checksum_seed = fs->csum_seed;
1363 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT,
1364 EXT4_FEATURE_INCOMPAT_CSUM_SEED)) {
1367 uuid_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid,
1368 sizeof(fs->super->s_uuid));
1369 if (fs->super->s_checksum_seed != uuid_seed &&
1370 (mount_flags & EXT2_MF_MOUNTED)) {
1371 fputs(_("UUID has changed since enabling "
1372 "metadata_csum. Filesystem must be unmounted "
1373 "\nto safely rewrite all metadata to "
1374 "match the new UUID.\n"), stderr);
1378 rewrite_checksums = 1;
1381 if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
1382 (sb->s_feature_compat || sb->s_feature_ro_compat ||
1383 sb->s_feature_incompat))
1384 ext2fs_update_dynamic_rev(fs);
1386 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
1387 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) ||
1388 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1389 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
1390 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT,
1391 EXT2_FEATURE_INCOMPAT_FILETYPE) ||
1392 FEATURE_CHANGED(E2P_FEATURE_COMPAT,
1393 EXT2_FEATURE_COMPAT_RESIZE_INODE) ||
1394 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
1395 EXT2_FEATURE_RO_COMPAT_LARGE_FILE))
1396 request_fsck_afterwards(fs);
1398 if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) ||
1399 (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) ||
1400 (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat))
1401 ext2fs_mark_super_dirty(fs);
1407 * Add a journal to the filesystem.
1409 static int add_journal(ext2_filsys fs)
1411 unsigned long journal_blocks;
1416 if (ext2fs_has_feature_journal(fs->super)) {
1417 fputs(_("The filesystem already has a journal.\n"), stderr);
1420 if (journal_device) {
1421 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
1423 proceed_question(-1);
1424 check_mount(journal_device, 0, _("journal"));
1425 #ifdef CONFIG_TESTIO_DEBUG
1426 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
1427 io_ptr = test_io_manager;
1428 test_io_backing_manager = unix_io_manager;
1431 io_ptr = unix_io_manager;
1432 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
1433 EXT2_FLAG_JOURNAL_DEV_OK, 0,
1434 fs->blocksize, io_ptr, &jfs);
1436 com_err(program_name, retval,
1437 _("\n\twhile trying to open journal on %s\n"),
1441 printf(_("Creating journal on device %s: "),
1445 retval = ext2fs_add_journal_device(fs, jfs);
1446 ext2fs_close_free(&jfs);
1448 com_err(program_name, retval,
1449 _("while adding filesystem to journal on %s"),
1453 fputs(_("done\n"), stdout);
1454 } else if (journal_size) {
1455 fputs(_("Creating journal inode: "), stdout);
1457 journal_blocks = figure_journal_size(journal_size, fs);
1459 if (journal_location_string)
1461 parse_num_blocks2(journal_location_string,
1462 fs->super->s_log_block_size);
1463 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
1467 fprintf(stderr, "\n");
1468 com_err(program_name, retval, "%s",
1469 _("\n\twhile trying to create journal file"));
1472 fputs(_("done\n"), stdout);
1474 * If the filesystem wasn't mounted, we need to force
1475 * the block group descriptors out.
1477 if ((mount_flags & EXT2_MF_MOUNTED) == 0)
1478 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
1480 print_check_message(fs->super->s_max_mnt_count,
1481 fs->super->s_checkinterval);
1485 free(journal_device);
1489 static void handle_quota_options(ext2_filsys fs)
1494 enum quota_type qtype;
1495 unsigned int qtype_bits = 0;
1498 for (qtype = 0 ; qtype < MAXQUOTAS; qtype++)
1499 if (quota_enable[qtype] != 0)
1501 if (qtype == MAXQUOTAS)
1502 /* Nothing to do. */
1505 if (quota_enable[PRJQUOTA] == QOPT_ENABLE &&
1506 fs->super->s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
1507 fprintf(stderr, _("Cannot enable project quota; "
1508 "inode size too small.\n"));
1512 for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
1513 if (quota_enable[qtype] == QOPT_ENABLE)
1514 qtype_bits |= 1 << qtype;
1517 retval = quota_init_context(&qctx, fs, qtype_bits);
1519 com_err(program_name, retval,
1520 _("while initializing quota context in support library"));
1525 quota_compute_usage(qctx);
1527 for (qtype = 0 ; qtype < MAXQUOTAS; qtype++) {
1528 if (quota_enable[qtype] == QOPT_ENABLE &&
1529 *quota_sb_inump(fs->super, qtype) == 0) {
1530 if ((qf_ino = quota_file_exists(fs, qtype)) > 0) {
1531 retval = quota_update_limits(qctx, qf_ino,
1534 com_err(program_name, retval,
1535 _("while updating quota limits (%d)"),
1540 retval = quota_write_inode(qctx, 1 << qtype);
1542 com_err(program_name, retval,
1543 _("while writing quota file (%d)"),
1547 /* Enable Quota feature if one of quota enabled */
1548 if (!ext2fs_has_feature_quota(fs->super)) {
1549 ext2fs_set_feature_quota(fs->super);
1552 if (qtype == PRJQUOTA &&
1553 !ext2fs_has_feature_project(fs->super)) {
1554 ext2fs_set_feature_project(fs->super);
1557 } else if (quota_enable[qtype] == QOPT_DISABLE) {
1558 retval = quota_remove_inode(fs, qtype);
1560 com_err(program_name, retval,
1561 _("while removing quota file (%d)"),
1565 if (qtype == PRJQUOTA) {
1566 ext2fs_clear_feature_project(fs->super);
1572 quota_release_context(&qctx);
1573 /* Clear Quota feature if all quota types disabled. */
1575 for (qtype = 0 ; qtype < MAXQUOTAS; qtype++)
1576 if (*quota_sb_inump(fs->super, qtype))
1578 if (qtype == MAXQUOTAS) {
1579 ext2fs_clear_feature_quota(fs->super);
1585 ext2fs_mark_super_dirty(fs);
1589 static int option_handle_function(char *token)
1591 if (strncmp(token, "usr", 3) == 0) {
1592 quota_enable[USRQUOTA] = QOPT_ENABLE;
1593 } else if (strncmp(token, "^usr", 4) == 0) {
1594 quota_enable[USRQUOTA] = QOPT_DISABLE;
1595 } else if (strncmp(token, "grp", 3) == 0) {
1596 quota_enable[GRPQUOTA] = QOPT_ENABLE;
1597 } else if (strncmp(token, "^grp", 4) == 0) {
1598 quota_enable[GRPQUOTA] = QOPT_DISABLE;
1599 } else if (strncmp(token, "prj", 3) == 0) {
1600 quota_enable[PRJQUOTA] = QOPT_ENABLE;
1601 } else if (strncmp(token, "^prj", 4) == 0) {
1602 quota_enable[PRJQUOTA] = QOPT_DISABLE;
1604 fputs(_("\nBad quota options specified.\n\n"
1605 "Following valid quota options are available "
1606 "(pass by separating with comma):\n"
1616 static void parse_e2label_options(int argc, char ** argv)
1618 if ((argc < 2) || (argc > 3)) {
1619 fputs(_("Usage: e2label device [newlabel]\n"), stderr);
1622 io_options = strchr(argv[1], '?');
1625 device_name = blkid_get_devname(NULL, argv[1], NULL);
1627 com_err("e2label", 0, _("Unable to resolve '%s'"),
1631 open_flag = EXT2_FLAG_JOURNAL_DEV_OK;
1633 open_flag |= EXT2_FLAG_RW;
1635 new_label = argv[2];
1640 static time_t parse_time(char *str)
1644 if (strcmp(str, "now") == 0) {
1647 memset(&ts, 0, sizeof(ts));
1648 #ifdef HAVE_STRPTIME
1649 strptime(str, "%Y%m%d%H%M%S", &ts);
1651 sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
1652 &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
1655 if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 ||
1656 ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 ||
1657 ts.tm_min > 59 || ts.tm_sec > 61)
1660 if (ts.tm_mday == 0) {
1661 com_err(program_name, 0,
1662 _("Couldn't parse date/time specifier: %s"),
1667 return (mktime(&ts));
1670 static void parse_tune2fs_options(int argc, char **argv)
1677 char optstring[100] = "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:z:Q:";
1680 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
1681 while ((c = getopt(argc, argv, optstring)) != EOF)
1684 max_mount_count = strtol(optarg, &tmp, 0);
1685 if (*tmp || max_mount_count > 16000) {
1686 com_err(program_name, 0,
1687 _("bad mounts count - %s"),
1691 if (max_mount_count == 0)
1692 max_mount_count = -1;
1694 open_flag = EXT2_FLAG_RW;
1697 mount_count = strtoul(optarg, &tmp, 0);
1698 if (*tmp || mount_count > 16000) {
1699 com_err(program_name, 0,
1700 _("bad mounts count - %s"),
1705 open_flag = EXT2_FLAG_RW;
1708 if (strcmp(optarg, "continue") == 0)
1709 errors = EXT2_ERRORS_CONTINUE;
1710 else if (strcmp(optarg, "remount-ro") == 0)
1711 errors = EXT2_ERRORS_RO;
1712 else if (strcmp(optarg, "panic") == 0)
1713 errors = EXT2_ERRORS_PANIC;
1715 com_err(program_name, 0,
1716 _("bad error behavior - %s"),
1721 open_flag = EXT2_FLAG_RW;
1724 extended_cmd = optarg;
1725 open_flag |= EXT2_FLAG_RW;
1727 case 'f': /* Force */
1731 resgid = strtoul(optarg, &tmp, 0);
1733 gr = getgrnam(optarg);
1737 resgid = gr->gr_gid;
1742 com_err(program_name, 0,
1743 _("bad gid/group name - %s"),
1748 open_flag = EXT2_FLAG_RW;
1751 interval = strtoul(optarg, &tmp, 0);
1758 case 'D': /* days */
1764 case 'M': /* months! */
1765 interval *= 86400 * 30;
1769 case 'W': /* weeks */
1770 interval *= 86400 * 7;
1775 com_err(program_name, 0,
1776 _("bad interval - %s"), optarg);
1780 open_flag = EXT2_FLAG_RW;
1785 open_flag = EXT2_FLAG_RW;
1788 parse_journal_opts(optarg);
1789 open_flag = EXT2_FLAG_RW;
1797 open_flag |= EXT2_FLAG_RW |
1798 EXT2_FLAG_JOURNAL_DEV_OK;
1801 reserved_ratio = strtod(optarg, &tmp);
1802 if (*tmp || reserved_ratio > 50 ||
1803 reserved_ratio < 0) {
1804 com_err(program_name, 0,
1805 _("bad reserved block ratio - %s"),
1810 open_flag = EXT2_FLAG_RW;
1813 new_last_mounted = optarg;
1815 open_flag = EXT2_FLAG_RW;
1819 com_err(program_name, 0, "%s",
1820 _("-o may only be specified once"));
1823 mntopts_cmd = optarg;
1824 open_flag = EXT2_FLAG_RW;
1828 com_err(program_name, 0, "%s",
1829 _("-O may only be specified once"));
1832 features_cmd = optarg;
1833 open_flag = EXT2_FLAG_RW;
1837 ret = parse_quota_opts(optarg, option_handle_function);
1840 open_flag = EXT2_FLAG_RW;
1843 reserved_blocks = strtoul(optarg, &tmp, 0);
1845 com_err(program_name, 0,
1846 _("bad reserved blocks count - %s"),
1851 open_flag = EXT2_FLAG_RW;
1853 case 's': /* Deprecated */
1854 s_flag = atoi(optarg);
1855 open_flag = EXT2_FLAG_RW;
1859 last_check_time = parse_time(optarg);
1860 open_flag = EXT2_FLAG_RW;
1863 resuid = strtoul(optarg, &tmp, 0);
1865 pw = getpwnam(optarg);
1869 resuid = pw->pw_uid;
1874 com_err(program_name, 0,
1875 _("bad uid/user name - %s"),
1880 open_flag = EXT2_FLAG_RW;
1885 open_flag = EXT2_FLAG_RW |
1886 EXT2_FLAG_JOURNAL_DEV_OK;
1889 new_inode_size = strtoul(optarg, &tmp, 0);
1891 com_err(program_name, 0,
1892 _("bad inode size - %s"),
1896 if (!((new_inode_size &
1897 (new_inode_size - 1)) == 0)) {
1898 com_err(program_name, 0,
1899 _("Inode size must be a "
1900 "power of two- %s"),
1904 open_flag = EXT2_FLAG_RW;
1913 if (optind < argc - 1 || optind == argc)
1915 if (!open_flag && !l_flag)
1917 io_options = strchr(argv[optind], '?');
1920 device_name = blkid_get_devname(NULL, argv[optind], NULL);
1922 com_err(program_name, 0, _("Unable to resolve '%s'"),
1928 #ifdef CONFIG_BUILD_FINDFS
1929 void do_findfs(int argc, char **argv)
1934 (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) {
1935 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n");
1938 dev = blkid_get_devname(NULL, argv[1], NULL);
1940 com_err("findfs", 0, _("Unable to resolve '%s'"),
1949 static int parse_extended_opts(ext2_filsys fs, const char *opts)
1951 char *buf, *token, *next, *p, *arg;
1956 buf = malloc(len+1);
1958 fprintf(stderr, "%s",
1959 _("Couldn't allocate memory to parse options!\n"));
1963 for (token = buf; token && *token; token = next) {
1964 p = strchr(token, ',');
1970 arg = strchr(token, '=');
1975 if (strcmp(token, "clear-mmp") == 0 ||
1976 strcmp(token, "clear_mmp") == 0) {
1978 } else if (strcmp(token, "mmp_update_interval") == 0) {
1984 intv = strtoul(arg, &p, 0);
1987 _("Invalid mmp_update_interval: %s\n"),
1993 intv = EXT4_MMP_UPDATE_INTERVAL;
1994 } else if (intv > EXT4_MMP_MAX_UPDATE_INTERVAL) {
1996 _("mmp_update_interval too big: %lu\n"),
2001 printf(P_("Setting multiple mount protection update "
2002 "interval to %lu second\n",
2003 "Setting multiple mount protection update "
2004 "interval to %lu seconds\n", intv),
2006 fs->super->s_mmp_update_interval = intv;
2007 ext2fs_mark_super_dirty(fs);
2008 } else if (!strcmp(token, "test_fs")) {
2009 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
2010 printf("Setting test filesystem flag\n");
2011 ext2fs_mark_super_dirty(fs);
2012 } else if (!strcmp(token, "^test_fs")) {
2013 fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS;
2014 printf("Clearing test filesystem flag\n");
2015 ext2fs_mark_super_dirty(fs);
2016 } else if (strcmp(token, "stride") == 0) {
2021 stride = strtoul(arg, &p, 0);
2024 _("Invalid RAID stride: %s\n"),
2030 } else if (strcmp(token, "stripe-width") == 0 ||
2031 strcmp(token, "stripe_width") == 0) {
2036 stripe_width = strtoul(arg, &p, 0);
2039 _("Invalid RAID stripe-width: %s\n"),
2044 stripe_width_set = 1;
2045 } else if (strcmp(token, "hash_alg") == 0 ||
2046 strcmp(token, "hash-alg") == 0) {
2051 hash_alg = e2p_string2hash(arg);
2054 _("Invalid hash algorithm: %s\n"),
2059 fs->super->s_def_hash_version = hash_alg;
2060 printf(_("Setting default hash algorithm "
2063 ext2fs_mark_super_dirty(fs);
2064 } else if (!strcmp(token, "mount_opts")) {
2069 if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) {
2071 "Extended mount options too long\n");
2074 ext_mount_opts = strdup(arg);
2079 fprintf(stderr, "%s", _("\nBad options specified.\n\n"
2080 "Extended options are separated by commas, "
2081 "and may take an argument which\n"
2082 "\tis set off by an equals ('=') sign.\n\n"
2083 "Valid extended options are:\n"
2085 "\thash_alg=<hash algorithm>\n"
2086 "\tmount_opts=<extended default mount options>\n"
2087 "\tstride=<RAID per-disk chunk size in blocks>\n"
2088 "\tstripe_width=<RAID stride*data disks in blocks>\n"
2100 * Fill in the block bitmap bmap with the information regarding the
2101 * blocks to be moved
2103 static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp,
2104 ext2fs_block_bitmap bmap)
2108 ext2_badblocks_list bb_list = 0;
2109 blk64_t j, needed_blocks = 0;
2110 blk64_t start_blk, end_blk;
2112 retval = ext2fs_read_bb_inode(fs, &bb_list);
2116 for (i = 0; i < fs->group_desc_count; i++) {
2117 start_blk = ext2fs_inode_table_loc(fs, i) +
2118 fs->inode_blocks_per_group;
2120 end_blk = ext2fs_inode_table_loc(fs, i) +
2121 new_ino_blks_per_grp;
2123 for (j = start_blk; j < end_blk; j++) {
2124 if (ext2fs_test_block_bitmap2(fs->block_map, j)) {
2126 * IF the block is a bad block we fail
2128 if (ext2fs_badblocks_list_test(bb_list, j)) {
2129 ext2fs_badblocks_list_free(bb_list);
2133 ext2fs_mark_block_bitmap2(bmap, j);
2136 * We are going to use this block for
2137 * inode table. So mark them used.
2139 ext2fs_mark_block_bitmap2(fs->block_map, j);
2142 needed_blocks += end_blk - start_blk;
2145 ext2fs_badblocks_list_free(bb_list);
2146 if (needed_blocks > ext2fs_free_blocks_count(fs->super))
2152 static int ext2fs_is_meta_block(ext2_filsys fs, blk64_t blk)
2155 group = ext2fs_group_of_blk2(fs, blk);
2156 if (ext2fs_block_bitmap_loc(fs, group) == blk)
2158 if (ext2fs_inode_bitmap_loc(fs, group) == blk)
2163 static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk64_t blk)
2165 blk64_t start_blk, end_blk;
2166 start_blk = fs->super->s_first_data_block +
2167 EXT2_GROUPS_TO_BLOCKS(fs->super, group);
2169 * We cannot get new block beyond end_blk for for the last block group
2170 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group
2172 end_blk = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super);
2173 if (blk >= start_blk && blk <= end_blk)
2178 static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
2185 blk64_t blk, new_blk, goal;
2186 struct blk_move *bmv;
2188 retval = ext2fs_get_mem(fs->blocksize, &buf);
2192 for (new_blk = blk = fs->super->s_first_data_block;
2193 blk < ext2fs_blocks_count(fs->super); blk++) {
2194 if (!ext2fs_test_block_bitmap2(bmap, blk))
2197 if (ext2fs_is_meta_block(fs, blk)) {
2199 * If the block is mapping a fs meta data block
2200 * like group desc/block bitmap/inode bitmap. We
2201 * should find a block in the same group and fix
2202 * the respective fs metadata pointers. Otherwise
2205 group = ext2fs_group_of_blk2(fs, blk);
2206 goal = ext2fs_group_first_block2(fs, group);
2212 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk);
2216 /* new fs meta data block should be in the same group */
2217 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) {
2222 /* Mark this block as allocated */
2223 ext2fs_mark_block_bitmap2(fs->block_map, new_blk);
2225 /* Add it to block move list */
2226 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv);
2231 bmv->new_loc = new_blk;
2233 list_add(&(bmv->list), &blk_move_list);
2235 retval = io_channel_read_blk64(fs->io, blk, 1, buf);
2239 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf);
2245 ext2fs_free_mem(&buf);
2249 static blk64_t translate_block(blk64_t blk)
2251 struct list_head *entry;
2252 struct blk_move *bmv;
2254 list_for_each(entry, &blk_move_list) {
2255 bmv = list_entry(entry, struct blk_move, list);
2256 if (bmv->old_loc == blk)
2257 return bmv->new_loc;
2263 static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
2265 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
2266 blk64_t ref_block EXT2FS_ATTR((unused)),
2267 int ref_offset EXT2FS_ATTR((unused)),
2272 ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data;
2274 if (!ext2fs_test_block_bitmap2(bmap, *block_nr))
2276 new_blk = translate_block(*block_nr);
2278 *block_nr = new_blk;
2280 * This will force the ext2fs_write_inode in the iterator
2282 ret |= BLOCK_CHANGED;
2288 static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
2290 errcode_t retval = 0;
2293 char *block_buf = 0;
2294 struct ext2_inode inode;
2295 ext2_inode_scan scan = NULL;
2297 retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf);
2301 retval = ext2fs_open_inode_scan(fs, 0, &scan);
2306 retval = ext2fs_get_next_inode(scan, &ino, &inode);
2313 if (inode.i_links_count == 0)
2314 continue; /* inode not in use */
2317 * If we end up modifying the journal inode
2318 * the sb->s_jnl_blocks will differ. But a
2319 * subsequent e2fsck fixes that.
2320 * Do we need to fix this ??
2323 if (ext2fs_file_acl_block(fs, &inode) &&
2324 ext2fs_test_block_bitmap2(bmap,
2325 ext2fs_file_acl_block(fs, &inode))) {
2326 blk = translate_block(ext2fs_file_acl_block(fs,
2331 ext2fs_file_acl_block_set(fs, &inode, blk);
2334 * Write the inode to disk so that inode table
2337 retval = ext2fs_write_inode(fs, ino, &inode);
2342 if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
2345 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf,
2346 process_block, bmap);
2353 ext2fs_free_mem(&block_buf);
2354 ext2fs_close_inode_scan(scan);
2360 * We need to scan for inode and block bitmaps that may need to be
2361 * moved. This can take place if the filesystem was formatted for
2362 * RAID arrays using the mke2fs's extended option "stride".
2364 static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
2367 blk64_t blk, new_blk;
2369 for (i = 0; i < fs->group_desc_count; i++) {
2370 blk = ext2fs_block_bitmap_loc(fs, i);
2371 if (ext2fs_test_block_bitmap2(bmap, blk)) {
2372 new_blk = translate_block(blk);
2375 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
2378 blk = ext2fs_inode_bitmap_loc(fs, i);
2379 if (ext2fs_test_block_bitmap2(bmap, blk)) {
2380 new_blk = translate_block(blk);
2383 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
2389 static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
2394 int new_ino_blks_per_grp;
2396 char *old_itable = NULL, *new_itable = NULL;
2397 char *tmp_old_itable = NULL, *tmp_new_itable = NULL;
2398 unsigned long old_ino_size;
2399 int old_itable_size, new_itable_size;
2401 old_itable_size = fs->inode_blocks_per_group * fs->blocksize;
2402 old_ino_size = EXT2_INODE_SIZE(fs->super);
2404 new_ino_blks_per_grp = ext2fs_div_ceil(
2405 EXT2_INODES_PER_GROUP(fs->super) *
2409 new_itable_size = new_ino_blks_per_grp * fs->blocksize;
2411 retval = ext2fs_get_mem(old_itable_size, &old_itable);
2415 retval = ext2fs_get_mem(new_itable_size, &new_itable);
2419 tmp_old_itable = old_itable;
2420 tmp_new_itable = new_itable;
2422 for (i = 0; i < fs->group_desc_count; i++) {
2423 blk = ext2fs_inode_table_loc(fs, i);
2424 retval = io_channel_read_blk64(fs->io, blk,
2425 fs->inode_blocks_per_group, old_itable);
2429 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) {
2430 memcpy(new_itable, old_itable, old_ino_size);
2432 memset(new_itable+old_ino_size, 0,
2433 new_ino_size - old_ino_size);
2435 new_itable += new_ino_size;
2436 old_itable += old_ino_size;
2439 /* reset the pointer */
2440 old_itable = tmp_old_itable;
2441 new_itable = tmp_new_itable;
2443 retval = io_channel_write_blk64(fs->io, blk,
2444 new_ino_blks_per_grp, new_itable);
2449 /* Update the meta data */
2450 fs->inode_blocks_per_group = new_ino_blks_per_grp;
2451 ext2fs_free_inode_cache(fs->icache);
2453 fs->super->s_inode_size = new_ino_size;
2457 ext2fs_free_mem(&old_itable);
2460 ext2fs_free_mem(&new_itable);
2465 static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
2469 unsigned int group = 0;
2470 unsigned int count = 0;
2475 * First calculate the block statistics
2477 for (blk = fs->super->s_first_data_block;
2478 blk < ext2fs_blocks_count(fs->super); blk++) {
2479 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) {
2484 if ((count == fs->super->s_blocks_per_group) ||
2485 (blk == ext2fs_blocks_count(fs->super)-1)) {
2486 ext2fs_bg_free_blocks_count_set(fs, group++,
2492 total_free = EXT2FS_C2B(fs, total_free);
2493 ext2fs_free_blocks_count_set(fs->super, total_free);
2496 * Next, calculate the inode statistics
2503 /* Protect loop from wrap-around if s_inodes_count maxed */
2504 for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) {
2505 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) {
2510 if ((count == fs->super->s_inodes_per_group) ||
2511 (ino == fs->super->s_inodes_count)) {
2512 ext2fs_bg_free_inodes_count_set(fs, group++,
2518 fs->super->s_free_inodes_count = total_free;
2519 ext2fs_mark_super_dirty(fs);
2523 #define list_for_each_safe(pos, pnext, head) \
2524 for (pos = (head)->next, pnext = pos->next; pos != (head); \
2525 pos = pnext, pnext = pos->next)
2527 static void free_blk_move_list(void)
2529 struct list_head *entry, *tmp;
2530 struct blk_move *bmv;
2532 list_for_each_safe(entry, tmp, &blk_move_list) {
2533 bmv = list_entry(entry, struct blk_move, list);
2535 ext2fs_free_mem(&bmv);
2540 static int resize_inode(ext2_filsys fs, unsigned long new_size)
2543 int new_ino_blks_per_grp;
2544 ext2fs_block_bitmap bmap;
2546 retval = ext2fs_read_inode_bitmap(fs);
2548 fputs(_("Failed to read inode bitmap\n"), stderr);
2551 retval = ext2fs_read_block_bitmap(fs);
2553 fputs(_("Failed to read block bitmap\n"), stderr);
2556 INIT_LIST_HEAD(&blk_move_list);
2559 new_ino_blks_per_grp = ext2fs_div_ceil(
2560 EXT2_INODES_PER_GROUP(fs->super)*
2564 /* We may change the file system.
2565 * Mark the file system as invalid so that
2566 * the user is prompted to run fsck.
2568 fs->super->s_state &= ~EXT2_VALID_FS;
2570 retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"),
2573 fputs(_("Failed to allocate block bitmap when "
2574 "increasing inode size\n"), stderr);
2577 retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap);
2579 fputs(_("Not enough space to increase inode size \n"), stderr);
2582 retval = move_block(fs, bmap);
2584 fputs(_("Failed to relocate blocks during inode resize \n"),
2588 retval = inode_scan_and_fix(fs, bmap);
2592 retval = group_desc_scan_and_fix(fs, bmap);
2596 retval = expand_inode_table(fs, new_size);
2600 ext2fs_calculate_summary_stats(fs);
2602 fs->super->s_state |= EXT2_VALID_FS;
2603 /* mark super block and block bitmap as dirty */
2604 ext2fs_mark_super_dirty(fs);
2605 ext2fs_mark_bb_dirty(fs);
2608 free_blk_move_list();
2609 ext2fs_free_block_bitmap(bmap);
2614 free_blk_move_list();
2615 ext2fs_free_block_bitmap(bmap);
2616 fputs(_("Error in resizing the inode size.\n"
2617 "Run e2undo to undo the "
2618 "file system changes. \n"), stderr);
2623 static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
2625 errcode_t retval = 0;
2626 const char *tdb_dir;
2627 char *tdb_file = NULL;
2628 char *dev_name, *tmp_name;
2630 /* (re)open a specific undo file */
2631 if (undo_file && undo_file[0] != 0) {
2632 retval = set_undo_io_backing_manager(*io_ptr);
2635 *io_ptr = undo_io_manager;
2636 retval = set_undo_io_backup_file(undo_file);
2639 printf(_("Overwriting existing filesystem; this can be undone "
2640 "using the command:\n"
2641 " e2undo %s %s\n\n"),
2647 * Configuration via a conf file would be
2650 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
2652 tdb_dir = "/var/lib/e2fsprogs";
2654 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
2655 access(tdb_dir, W_OK))
2658 tmp_name = strdup(name);
2661 dev_name = basename(tmp_name);
2662 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
2667 sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name);
2670 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
2672 com_err(program_name, retval,
2673 _("while trying to delete %s"), tdb_file);
2677 retval = set_undo_io_backing_manager(*io_ptr);
2680 *io_ptr = undo_io_manager;
2681 retval = set_undo_io_backup_file(tdb_file);
2684 printf(_("Overwriting existing filesystem; this can be undone "
2685 "using the command:\n"
2686 " e2undo %s %s\n\n"),
2694 com_err("tune2fs", retval, "while trying to setup undo file\n");
2699 fs_update_journal_user(struct ext2_super_block *sb, __u8 old_uuid[UUID_SIZE])
2701 int retval, nr_users, start;
2702 journal_superblock_t *jsb;
2706 char uuid[UUID_STR_SIZE];
2707 char buf[SUPERBLOCK_SIZE] __attribute__ ((aligned(8)));
2709 if (!ext2fs_has_feature_journal(sb) || uuid_is_null(sb->s_journal_uuid))
2712 uuid_unparse(sb->s_journal_uuid, uuid);
2713 journal_path = blkid_get_devname(NULL, "UUID", uuid);
2717 retval = ext2fs_open2(journal_path, io_options,
2718 EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_RW,
2719 0, 0, unix_io_manager, &jfs);
2721 com_err(program_name, retval,
2722 _("while trying to open %s"),
2727 retval = get_journal_sb(jfs, buf);
2729 if (retval == EXT2_ET_UNSUPP_FEATURE)
2730 fprintf(stderr, _("%s is not a journal device.\n"),
2735 jsb = (journal_superblock_t *) buf;
2736 /* Find the filesystem UUID */
2737 nr_users = ntohl(jsb->s_nr_users);
2739 j_uuid = journal_user(old_uuid, jsb->s_users, nr_users);
2740 if (j_uuid == NULL) {
2741 fputs(_("Filesystem's UUID not found on journal device.\n"),
2743 return EXT2_ET_LOAD_EXT_JOURNAL;
2746 memcpy(j_uuid, sb->s_uuid, UUID_SIZE);
2748 start = ext2fs_journal_sb_start(jfs->blocksize);
2749 /* Write back the journal superblock */
2750 retval = io_channel_write_blk64(jfs->io, start, -SUPERBLOCK_SIZE, buf);
2752 com_err(program_name, retval,
2753 "while writing journal superblock.");
2762 #ifndef BUILD_AS_LIB
2763 int main(int argc, char **argv)
2765 int tune2fs_main(int argc, char **argv)
2766 #endif /* BUILD_AS_LIB */
2770 struct ext2_super_block *sb;
2771 io_manager io_ptr, io_ptr_orig = NULL;
2773 char default_undo_file[1] = { 0 };
2776 setlocale(LC_MESSAGES, "");
2777 setlocale(LC_CTYPE, "");
2778 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2779 textdomain(NLS_CAT_NAME);
2780 set_com_err_gettext(gettext);
2783 program_name = *argv;
2784 add_error_table(&et_ext2_error_table);
2786 #ifdef CONFIG_BUILD_FINDFS
2787 if (strcmp(get_progname(argv[0]), "findfs") == 0)
2788 do_findfs(argc, argv);
2790 if (strcmp(get_progname(argv[0]), "e2label") == 0)
2791 parse_e2label_options(argc, argv);
2793 parse_tune2fs_options(argc, argv);
2795 #ifdef CONFIG_TESTIO_DEBUG
2796 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) {
2797 io_ptr = test_io_manager;
2798 test_io_backing_manager = unix_io_manager;
2801 io_ptr = unix_io_manager;
2804 if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag)
2805 open_flag |= EXT2_FLAG_SKIP_MMP;
2807 open_flag |= EXT2_FLAG_64BITS | EXT2_FLAG_JOURNAL_DEV_OK;
2809 /* keep the filesystem struct around to dump MMP data */
2810 open_flag |= EXT2_FLAG_NOFREE_ON_ERROR;
2812 retval = ext2fs_open2(device_name, io_options, open_flag,
2815 com_err(program_name, retval,
2816 _("while trying to open %s"),
2818 if (retval == EXT2_ET_MMP_FSCK_ON ||
2819 retval == EXT2_ET_MMP_UNKNOWN_SEQ)
2820 dump_mmp_msg(fs->mmp_buf,
2821 _("If you are sure the filesystem "
2822 "is not in use on any node, run:\n"
2823 "'tune2fs -f -E clear_mmp {device}'\n"));
2824 else if (retval == EXT2_ET_MMP_FAILED)
2825 dump_mmp_msg(fs->mmp_buf, NULL);
2826 else if (retval == EXT2_ET_MMP_MAGIC_INVALID)
2828 _("MMP block magic is bad. Try to fix it by "
2829 "running:\n'e2fsck -f %s'\n"), device_name);
2830 else if (retval == EXT2_ET_BAD_MAGIC)
2831 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
2832 else if (retval != EXT2_ET_MMP_FAILED)
2833 fprintf(stderr, "%s",
2834 _("Couldn't find valid filesystem superblock.\n"));
2839 if (ext2fs_has_feature_journal_dev(fs->super)) {
2840 fprintf(stderr, "%s", _("Cannot modify a journal device.\n"));
2844 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
2848 * Check the inode size is right so we can issue an
2849 * error message and bail before setting up the tdb
2852 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) {
2853 fprintf(stderr, _("The inode size is already %lu\n"),
2858 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) {
2859 fprintf(stderr, "%s",
2860 _("Shrinking inode size is not supported\n"));
2864 if (new_inode_size > fs->blocksize) {
2865 fprintf(stderr, _("Invalid inode size %lu (max %d)\n"),
2866 new_inode_size, fs->blocksize);
2870 check_fsck_needed(fs,
2871 _("Resizing inodes could take some time."));
2873 * If inode resize is requested use the
2876 undo_file = default_undo_file;
2879 /* Set up an undo file */
2880 if (undo_file && io_ptr_orig == NULL) {
2881 io_ptr_orig = io_ptr;
2882 retval = tune2fs_setup_tdb(device_name, &io_ptr);
2887 if (io_ptr != io_ptr_orig) {
2888 ext2fs_close_free(&fs);
2894 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
2897 /* For e2label emulation */
2898 printf("%.*s\n", (int) sizeof(sb->s_volume_name),
2900 remove_error_table(&et_ext2_error_table);
2904 retval = ext2fs_check_if_mounted(device_name, &mount_flags);
2906 com_err("ext2fs_check_if_mount", retval,
2907 _("while determining whether %s is mounted."),
2912 /* Normally we only need to write out the superblock */
2913 fs->flags |= EXT2_FLAG_SUPER_ONLY;
2916 sb->s_max_mnt_count = max_mount_count;
2917 ext2fs_mark_super_dirty(fs);
2918 printf(_("Setting maximal mount count to %d\n"),
2922 sb->s_mnt_count = mount_count;
2923 ext2fs_mark_super_dirty(fs);
2924 printf(_("Setting current mount count to %d\n"), mount_count);
2927 sb->s_errors = errors;
2928 ext2fs_mark_super_dirty(fs);
2929 printf(_("Setting error behavior to %d\n"), errors);
2932 sb->s_def_resgid = resgid;
2933 ext2fs_mark_super_dirty(fs);
2934 printf(_("Setting reserved blocks gid to %lu\n"), resgid);
2937 if ((unsigned long long)interval >= (1ULL << 32)) {
2938 com_err(program_name, 0,
2939 _("interval between checks is too big (%lu)"),
2944 sb->s_checkinterval = interval;
2945 ext2fs_mark_super_dirty(fs);
2946 printf(_("Setting interval between checks to %lu seconds\n"),
2950 ext2fs_r_blocks_count_set(sb, reserved_ratio *
2951 ext2fs_blocks_count(sb) / 100.0);
2952 ext2fs_mark_super_dirty(fs);
2953 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"),
2954 reserved_ratio, ext2fs_r_blocks_count(sb));
2957 if (reserved_blocks > ext2fs_blocks_count(sb)/2) {
2958 com_err(program_name, 0,
2959 _("reserved blocks count is too big (%llu)"),
2964 ext2fs_r_blocks_count_set(sb, reserved_blocks);
2965 ext2fs_mark_super_dirty(fs);
2966 printf(_("Setting reserved blocks count to %llu\n"),
2970 if (ext2fs_has_feature_sparse_super(sb)) {
2971 fputs(_("\nThe filesystem already has sparse "
2972 "superblocks.\n"), stderr);
2973 } else if (ext2fs_has_feature_meta_bg(sb)) {
2974 fputs(_("\nSetting the sparse superblock flag not "
2975 "supported\nfor filesystems with "
2976 "the meta_bg feature enabled.\n"),
2981 ext2fs_set_feature_sparse_super(sb);
2982 sb->s_state &= ~EXT2_VALID_FS;
2983 ext2fs_mark_super_dirty(fs);
2984 printf(_("\nSparse superblock flag set. %s"),
2989 fputs(_("\nClearing the sparse superblock flag not supported.\n"),
2995 sb->s_lastcheck = last_check_time;
2996 ext2fs_mark_super_dirty(fs);
2997 printf(_("Setting time filesystem last checked to %s\n"),
2998 ctime(&last_check_time));
3001 sb->s_def_resuid = resuid;
3002 ext2fs_mark_super_dirty(fs);
3003 printf(_("Setting reserved blocks uid to %lu\n"), resuid);
3006 if (strlen(new_label) > sizeof(sb->s_volume_name))
3007 fputs(_("Warning: label too long, truncating.\n"),
3009 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
3010 strncpy(sb->s_volume_name, new_label,
3011 sizeof(sb->s_volume_name));
3012 ext2fs_mark_super_dirty(fs);
3015 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted));
3016 strncpy(sb->s_last_mounted, new_last_mounted,
3017 sizeof(sb->s_last_mounted));
3018 ext2fs_mark_super_dirty(fs);
3021 rc = update_mntopts(fs, mntopts_cmd);
3026 rc = update_feature_set(fs, features_cmd);
3031 rc = parse_extended_opts(fs, extended_cmd);
3034 if (clear_mmp && !f_flag) {
3035 fputs(_("Error in using clear_mmp. "
3036 "It must be used with -f\n"),
3042 rc = ext2fs_mmp_clear(fs);
3045 if (journal_size || journal_device) {
3046 rc = add_journal(fs);
3052 if (mount_flags & EXT2_MF_MOUNTED) {
3053 fputs(_("The quota feature may only be changed when "
3054 "the filesystem is unmounted.\n"), stderr);
3058 handle_quota_options(fs);
3064 char buf[SUPERBLOCK_SIZE] __attribute__ ((aligned(8)));
3065 __u8 old_uuid[UUID_SIZE];
3067 if (ext2fs_has_group_desc_csum(fs)) {
3069 * Changing the UUID on a metadata_csum FS requires
3070 * rewriting all metadata, which can race with a
3071 * mounted fs. Don't allow that unless we're saving
3072 * the checksum seed.
3074 if ((mount_flags & EXT2_MF_MOUNTED) &&
3075 !ext2fs_has_feature_csum_seed(fs->super) &&
3076 ext2fs_has_feature_metadata_csum(fs->super)) {
3077 fputs(_("The UUID may only be "
3078 "changed when the filesystem is "
3079 "unmounted.\n"), stderr);
3080 fputs(_("If you only use kernels newer than "
3081 "v4.4, run 'tune2fs -O "
3082 "metadata_csum_seed' and re-run this "
3083 "command.\n"), stderr);
3084 try_confirm_csum_seed_support();
3087 if (!ext2fs_has_feature_csum_seed(fs->super))
3088 check_fsck_needed(fs,
3089 _("Setting UUID on a checksummed "
3090 "filesystem could take some time."));
3093 * Determine if the block group checksums are
3094 * correct so we know whether or not to set
3097 for (i = 0; i < fs->group_desc_count; i++)
3098 if (!ext2fs_group_desc_csum_verify(fs, i))
3100 if (i >= fs->group_desc_count)
3104 memcpy(old_uuid, sb->s_uuid, UUID_SIZE);
3105 if ((strcasecmp(new_UUID, "null") == 0) ||
3106 (strcasecmp(new_UUID, "clear") == 0)) {
3107 uuid_clear(sb->s_uuid);
3108 } else if (strcasecmp(new_UUID, "time") == 0) {
3109 uuid_generate_time(sb->s_uuid);
3110 } else if (strcasecmp(new_UUID, "random") == 0) {
3111 uuid_generate(sb->s_uuid);
3112 } else if (uuid_parse(new_UUID, sb->s_uuid)) {
3113 com_err(program_name, 0, "%s",
3114 _("Invalid UUID format\n"));
3118 ext2fs_init_csum_seed(fs);
3120 for (i = 0; i < fs->group_desc_count; i++)
3121 ext2fs_group_desc_csum_set(fs, i);
3122 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
3125 /* If this is a journal dev, we need to copy UUID into jsb */
3126 if (!(rc = get_journal_sb(fs, buf))) {
3127 journal_superblock_t *jsb;
3129 jsb = (journal_superblock_t *) buf;
3130 fputs(_("Need to update journal superblock.\n"), stdout);
3131 memcpy(jsb->s_uuid, sb->s_uuid, sizeof(sb->s_uuid));
3133 /* Writeback the journal superblock */
3134 if ((rc = io_channel_write_blk64(fs->io,
3135 ext2fs_journal_sb_start(fs->blocksize),
3136 -SUPERBLOCK_SIZE, buf)))
3138 } else if (rc != EXT2_ET_UNSUPP_FEATURE)
3141 rc = 0; /** Reset rc to avoid ext2fs_mmp_stop() */
3143 if ((rc = fs_update_journal_user(sb, old_uuid)))
3147 ext2fs_mark_super_dirty(fs);
3148 if (ext2fs_has_feature_metadata_csum(fs->super) &&
3149 !ext2fs_has_feature_csum_seed(fs->super))
3150 rewrite_checksums = 1;
3154 if (mount_flags & EXT2_MF_MOUNTED) {
3155 fputs(_("The inode size may only be "
3156 "changed when the filesystem is "
3157 "unmounted.\n"), stderr);
3161 if (ext2fs_has_feature_flex_bg(fs->super)) {
3162 fputs(_("Changing the inode size not supported for "
3163 "filesystems with the flex_bg\n"
3164 "feature enabled.\n"),
3170 * We want to update group descriptor also
3171 * with the new free inode count
3173 if (rewrite_checksums)
3174 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3175 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
3176 retval = resize_inode(fs, new_inode_size);
3177 if (rewrite_checksums)
3178 fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
3180 printf(_("Setting inode size %lu\n"),
3182 rewrite_checksums = 1;
3184 printf("%s", _("Failed to change inode size\n"));
3190 if (rewrite_checksums)
3191 rewrite_metadata_checksums(fs);
3196 sb->s_raid_stride = stride;
3197 ext2fs_mark_super_dirty(fs);
3198 printf(_("Setting stride size to %d\n"), stride);
3200 if (stripe_width_set) {
3201 sb->s_raid_stripe_width = stripe_width;
3202 ext2fs_mark_super_dirty(fs);
3203 printf(_("Setting stripe width to %d\n"), stripe_width);
3205 if (ext_mount_opts) {
3206 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts,
3207 sizeof(fs->super->s_mount_opts));
3208 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0;
3209 ext2fs_mark_super_dirty(fs);
3210 printf(_("Setting extended default mount options to '%s'\n"),
3212 free(ext_mount_opts);
3216 /* Warn if file system needs recovery and it is opened for writing. */
3217 if ((open_flag & EXT2_FLAG_RW) && !(mount_flags & EXT2_MF_MOUNTED) &&
3218 (sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
3219 (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER)) {
3221 _("Warning: The journal is dirty. You may wish to replay the journal like:\n\n"
3222 "\te2fsck -E journal_only %s\n\n"
3223 "then rerun this command. Otherwise, any changes made may be overwritten\n"
3224 "by journal recovery.\n"), device_name);
3227 /* Recover the journal if possible. */
3228 if ((open_flag & EXT2_FLAG_RW) && !(mount_flags & EXT2_MF_MOUNTED) &&
3229 ext2fs_has_feature_journal_needs_recovery(fs->super)) {
3232 printf(_("Recovering journal.\n"));
3233 err = ext2fs_run_ext3_journal(&fs);
3235 com_err("tune2fs", err, "while recovering journal.\n");
3236 printf(_("Please run e2fsck -fy %s.\n"), argv[1]);
3239 ext2fs_clear_feature_journal_needs_recovery(fs->super);
3240 ext2fs_mark_super_dirty(fs);
3245 remove_error_table(&et_ext2_error_table);
3249 ext2fs_mmp_stop(fs);
3250 #ifndef BUILD_AS_LIB
3255 convert_64bit(fs, feature_64bit);
3256 return (ext2fs_close_free(&fs) ? 1 : 0);