4 * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
5 * redistributed under the terms of the GNU Public License.
19 #ifdef HAVE_SYS_TYPES_H
20 #include <sys/types.h>
22 #ifdef HAVE_SYS_TIME_H
29 #if EXT2_FLAT_INCLUDES
34 #include "ext2fs/ext2_fs.h"
35 #include "ext2fs/ext2fs.h"
36 #include "blkid/blkid.h"
39 #include "support/profile.h"
40 #include "support/prof_err.h"
45 #define _(a) (gettext (a))
47 #define N_(a) gettext_noop (a)
51 #define P_(singular, plural, n) (ngettext (singular, plural, n))
53 #define NLS_CAT_NAME "e2fsprogs"
56 #define LOCALEDIR "/usr/share/locale"
61 #define P_(singular, plural, n) ((n) == 1 ? (singular) : (plural))
65 #define E2FSCK_ATTR(x) __attribute__(x)
67 #define E2FSCK_ATTR(x)
70 #include "support/quotaio.h"
73 * Exit codes used by fsck-type programs
75 #define FSCK_OK 0 /* No errors */
76 #define FSCK_NONDESTRUCT 1 /* File system errors corrected */
77 #define FSCK_REBOOT 2 /* System should be rebooted */
78 #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
79 #define FSCK_ERROR 8 /* Operational error */
80 #define FSCK_USAGE 16 /* Usage or syntax error */
81 #define FSCK_CANCELED 32 /* Aborted with a signal or ^C */
82 #define FSCK_LIBRARY 128 /* Shared library error */
85 * The last ext2fs revision level that this version of e2fsck is able to
88 #define E2FSCK_CURRENT_REV 1
91 * The directory information structure; stores directory information
92 * collected in earlier passes, to avoid disk i/o in fetching the
93 * directory information.
96 ext2_ino_t ino
; /* Inode number */
97 ext2_ino_t dotdot
; /* Parent according to '..' */
98 ext2_ino_t parent
; /* Parent according to treewalk */
103 * The indexed directory information structure; stores information for
104 * directories which contain a hash tree index.
107 ext2_ino_t ino
; /* Inode number */
108 int numblocks
; /* number of blocks */
110 short depth
; /* depth of tree */
111 struct dx_dirblock_info
*dx_block
; /* Array of size numblocks */
114 #define DX_DIRBLOCK_ROOT 1
115 #define DX_DIRBLOCK_LEAF 2
116 #define DX_DIRBLOCK_NODE 3
117 #define DX_DIRBLOCK_CORRUPT 4
118 #define DX_DIRBLOCK_CLEARED 8
120 struct dx_dirblock_info
{
126 ext2_dirhash_t min_hash
;
127 ext2_dirhash_t max_hash
;
128 ext2_dirhash_t node_min_hash
;
129 ext2_dirhash_t node_max_hash
;
132 #define DX_FLAG_REFERENCED 1
133 #define DX_FLAG_DUP_REF 2
134 #define DX_FLAG_FIRST 4
135 #define DX_FLAG_LAST 8
137 #define RESOURCE_TRACK
139 #ifdef RESOURCE_TRACK
141 * This structure is used for keeping track of how much resources have
142 * been used for a particular pass of e2fsck.
144 struct resource_track
{
145 struct timeval time_start
;
146 struct timeval user_start
;
147 struct timeval system_start
;
149 unsigned long long bytes_read
;
150 unsigned long long bytes_written
;
157 #define E2F_OPT_READONLY 0x0001
158 #define E2F_OPT_PREEN 0x0002
159 #define E2F_OPT_YES 0x0004
160 #define E2F_OPT_NO 0x0008
161 #define E2F_OPT_TIME 0x0010
162 #define E2F_OPT_TIME2 0x0020
163 #define E2F_OPT_CHECKBLOCKS 0x0040
164 #define E2F_OPT_DEBUG 0x0080
165 #define E2F_OPT_FORCE 0x0100
166 #define E2F_OPT_WRITECHECK 0x0200
167 #define E2F_OPT_COMPRESS_DIRS 0x0400
168 #define E2F_OPT_FRAGCHECK 0x0800
169 #define E2F_OPT_JOURNAL_ONLY 0x1000 /* only replay the journal */
170 #define E2F_OPT_DISCARD 0x2000
171 #define E2F_OPT_CONVERT_BMAP 0x4000 /* convert blockmap to extent */
172 #define E2F_OPT_FIXES_ONLY 0x8000 /* skip all optimizations */
173 #define E2F_OPT_NOOPT_EXTENTS 0x10000 /* don't optimize extents */
178 #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
179 #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
180 #define E2F_FLAG_SIGNAL_MASK (E2F_FLAG_ABORT | E2F_FLAG_CANCEL)
181 #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
182 #define E2F_FLAG_RUN_RETURN (E2F_FLAG_SIGNAL_MASK | E2F_FLAG_RESTART)
183 #define E2F_FLAG_RESTART_LATER 0x0008 /* Restart after all iterations done */
184 #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
186 #define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
187 #define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
188 #define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
189 #define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
190 * specified by the user */
191 #define E2F_FLAG_RESTARTED 0x0200 /* E2fsck has been restarted */
192 #define E2F_FLAG_RESIZE_INODE 0x0400 /* Request to recreate resize inode */
193 #define E2F_FLAG_GOT_DEVSIZE 0x0800 /* Device size has been fetched */
194 #define E2F_FLAG_EXITING 0x1000 /* E2fsck exiting due to errors */
195 #define E2F_FLAG_TIME_INSANE 0x2000 /* Time is insane */
196 #define E2F_FLAG_PROBLEMS_FIXED 0x4000 /* At least one problem was fixed */
197 #define E2F_FLAG_ALLOC_OK 0x8000 /* Can we allocate blocks? */
199 #define E2F_RESET_FLAGS (E2F_FLAG_TIME_INSANE | E2F_FLAG_PROBLEMS_FIXED)
202 * Defines for indicating the e2fsck pass number
209 #define E2F_PASS_1B 6
212 * Define the extended attribute refcount structure
214 typedef struct ea_refcount
*ext2_refcount_t
;
217 * This is the global e2fsck structure.
219 typedef struct e2fsck_struct
*e2fsck_t
;
221 #define MAX_EXTENT_DEPTH_COUNT 5
223 struct e2fsck_struct
{
225 const char *program_name
;
226 char *filesystem_name
;
231 int flags
; /* E2fsck internal flags */
233 int blocksize
; /* blocksize */
234 blk64_t use_superblock
; /* sb requested by user */
235 blk64_t superblock
; /* sb used to open fs */
236 blk64_t num_blocks
; /* Total number of blocks */
241 blkid_cache blkid
; /* blkid cache */
246 unsigned long abort_code
;
248 int (*progress
)(e2fsck_t ctx
, int pass
, unsigned long cur
,
251 ext2fs_inode_bitmap inode_used_map
; /* Inodes which are in use */
252 ext2fs_inode_bitmap inode_bad_map
; /* Inodes which are bad somehow */
253 ext2fs_inode_bitmap inode_dir_map
; /* Inodes which are directories */
254 ext2fs_inode_bitmap inode_bb_map
; /* Inodes which are in bad blocks */
255 ext2fs_inode_bitmap inode_imagic_map
; /* AFS inodes */
256 ext2fs_inode_bitmap inode_reg_map
; /* Inodes which are regular files*/
258 ext2fs_block_bitmap block_found_map
; /* Blocks which are in use */
259 ext2fs_block_bitmap block_dup_map
; /* Blks referenced more than once */
260 ext2fs_block_bitmap block_ea_map
; /* Blocks which are used by EA's */
265 ext2_icount_t inode_count
;
266 ext2_icount_t inode_link_info
;
268 ext2_refcount_t refcount
;
269 ext2_refcount_t refcount_extra
;
272 * Array of flags indicating whether an inode bitmap, block
273 * bitmap, or inode table is invalid
275 int *invalid_inode_bitmap_flag
;
276 int *invalid_block_bitmap_flag
;
277 int *invalid_inode_table_flag
;
278 int invalid_bitmaps
; /* There are invalid bitmaps/itable */
286 * For pass1_check_directory and pass1_get_blocks
288 ext2_ino_t stashed_ino
;
289 struct ext2_inode
*stashed_inode
;
292 * Location of the lost and found directory
294 ext2_ino_t lost_and_found
;
295 int bad_lost_and_found
;
298 * Directory information
300 struct dir_info_db
*dir_info
;
303 * Indexed directory information
305 int dx_dir_info_count
;
306 int dx_dir_info_size
;
307 struct dx_dir_info
*dx_dir_info
;
310 * Directories to hash
312 ext2_u32_list dirs_to_hash
;
317 int process_inode_size
;
318 int inode_buffer_blocks
;
319 unsigned int htree_slack_percentage
;
322 * ext3 journal support
324 io_channel journal_io
;
331 #ifdef RESOURCE_TRACK
333 * For timing purposes
335 struct resource_track global_rtrack
;
339 * How we display the progress update (for unix)
343 int progress_last_percent
;
344 unsigned int progress_last_time
;
345 int interactive
; /* Are we connected directly to a tty? */
346 char start_meta
[2], stop_meta
[2];
349 __u32 fs_directory_count
;
350 __u32 fs_regular_count
;
351 __u32 fs_blockdev_count
;
352 __u32 fs_chardev_count
;
353 __u32 fs_links_count
;
354 __u32 fs_symlinks_count
;
355 __u32 fs_fast_symlinks_count
;
357 __u32 fs_total_count
;
358 __u32 fs_badblocks_count
;
359 __u32 fs_sockets_count
;
364 __u32 fs_fragmented_dir
;
366 __u32 fs_ext_attr_inodes
;
367 __u32 fs_ext_attr_blocks
;
368 __u32 extent_depth_count
[MAX_EXTENT_DEPTH_COUNT
];
372 time_t time_fudge
; /* For working around buggy init scripts */
376 ext2_u32_list encrypted_dirs
;
378 /* Reserve blocks for root and l+f re-creation */
379 blk64_t root_repair_block
, lnf_repair_block
;
382 * For the use of callers of the e2fsck functions; not used by
383 * e2fsck functions themselves.
386 ext2fs_block_bitmap block_metadata_map
; /* Metadata blocks */
388 /* How much are we allowed to readahead? */
389 unsigned long long readahead_kb
;
392 * Inodes to rebuild extent trees
394 ext2fs_inode_bitmap inodes_to_rebuild
;
400 /* Data structures to evaluate whether an extent tree needs rebuilding. */
401 struct extent_tree_level
{
402 unsigned int num_extents
;
403 unsigned int max_extents
;
406 struct extent_tree_info
{
409 struct extent_tree_level ext_info
[MAX_EXTENT_DEPTH_COUNT
];
412 /* Used by the region allocation code */
413 typedef __u64 region_addr_t
;
414 typedef struct region_struct
*region_t
;
417 #define strnlen(str, x) e2fsck_strnlen((str),(x))
418 extern int e2fsck_strnlen(const char * s
, int count
);
422 * Procedure declarations
425 extern void e2fsck_pass1(e2fsck_t ctx
);
426 extern void e2fsck_pass1_dupblocks(e2fsck_t ctx
, char *block_buf
);
427 extern void e2fsck_pass2(e2fsck_t ctx
);
428 extern void e2fsck_pass3(e2fsck_t ctx
);
429 extern void e2fsck_pass4(e2fsck_t ctx
);
430 extern void e2fsck_pass5(e2fsck_t ctx
);
433 extern errcode_t
e2fsck_allocate_context(e2fsck_t
*ret
);
434 extern errcode_t
e2fsck_reset_context(e2fsck_t ctx
);
435 extern void e2fsck_free_context(e2fsck_t ctx
);
436 extern int e2fsck_run(e2fsck_t ctx
);
440 extern void read_bad_blocks_file(e2fsck_t ctx
, const char *bad_blocks_file
,
441 int replace_bad_blocks
);
444 extern void e2fsck_add_dir_info(e2fsck_t ctx
, ext2_ino_t ino
, ext2_ino_t parent
);
445 extern void e2fsck_free_dir_info(e2fsck_t ctx
);
446 extern int e2fsck_get_num_dirinfo(e2fsck_t ctx
);
447 extern struct dir_info_iter
*e2fsck_dir_info_iter_begin(e2fsck_t ctx
);
448 extern struct dir_info
*e2fsck_dir_info_iter(e2fsck_t ctx
,
449 struct dir_info_iter
*);
450 extern void e2fsck_dir_info_iter_end(e2fsck_t ctx
, struct dir_info_iter
*);
451 extern int e2fsck_dir_info_set_parent(e2fsck_t ctx
, ext2_ino_t ino
,
453 extern int e2fsck_dir_info_set_dotdot(e2fsck_t ctx
, ext2_ino_t ino
,
455 extern int e2fsck_dir_info_get_parent(e2fsck_t ctx
, ext2_ino_t ino
,
457 extern int e2fsck_dir_info_get_dotdot(e2fsck_t ctx
, ext2_ino_t ino
,
461 extern void e2fsck_add_dx_dir(e2fsck_t ctx
, ext2_ino_t ino
, int num_blocks
);
462 extern struct dx_dir_info
*e2fsck_get_dx_dir_info(e2fsck_t ctx
, ext2_ino_t ino
);
463 extern void e2fsck_free_dx_dir_info(e2fsck_t ctx
);
464 extern int e2fsck_get_num_dx_dirinfo(e2fsck_t ctx
);
465 extern struct dx_dir_info
*e2fsck_dx_dir_info_iter(e2fsck_t ctx
, int *control
);
468 extern errcode_t
ea_refcount_create(int size
, ext2_refcount_t
*ret
);
469 extern void ea_refcount_free(ext2_refcount_t refcount
);
470 extern errcode_t
ea_refcount_fetch(ext2_refcount_t refcount
, blk64_t blk
, int *ret
);
471 extern errcode_t
ea_refcount_increment(ext2_refcount_t refcount
,
472 blk64_t blk
, int *ret
);
473 extern errcode_t
ea_refcount_decrement(ext2_refcount_t refcount
,
474 blk64_t blk
, int *ret
);
475 extern errcode_t
ea_refcount_store(ext2_refcount_t refcount
,
476 blk64_t blk
, int count
);
477 extern blk_t
ext2fs_get_refcount_size(ext2_refcount_t refcount
);
478 extern void ea_refcount_intr_begin(ext2_refcount_t refcount
);
479 extern blk64_t
ea_refcount_intr_next(ext2_refcount_t refcount
, int *ret
);
482 extern const char *ehandler_operation(const char *op
);
483 extern void ehandler_init(io_channel channel
);
486 struct problem_context
;
487 errcode_t
e2fsck_rebuild_extents_later(e2fsck_t ctx
, ext2_ino_t ino
);
488 int e2fsck_ino_will_be_rebuilt(e2fsck_t ctx
, ext2_ino_t ino
);
489 void e2fsck_pass1e(e2fsck_t ctx
);
490 errcode_t
e2fsck_check_rebuild_extents(e2fsck_t ctx
, ext2_ino_t ino
,
491 struct ext2_inode
*inode
,
492 struct problem_context
*pctx
);
493 errcode_t
e2fsck_should_rebuild_extents(e2fsck_t ctx
,
494 struct problem_context
*pctx
,
495 struct extent_tree_info
*eti
,
496 struct ext2_extent_info
*info
);
499 extern errcode_t
e2fsck_check_ext3_journal(e2fsck_t ctx
);
500 extern errcode_t
e2fsck_run_ext3_journal(e2fsck_t ctx
);
501 extern void e2fsck_move_ext3_journal(e2fsck_t ctx
);
502 extern int e2fsck_fix_ext3_journal_hint(e2fsck_t ctx
);
505 extern void set_up_logging(e2fsck_t ctx
);
508 extern void e2fsck_hide_quota(e2fsck_t ctx
);
511 extern errcode_t
e2fsck_setup_icount(e2fsck_t ctx
, const char *icount_name
,
512 int flags
, ext2_icount_t hint
,
514 extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx
, int use_shortcuts
);
515 extern int e2fsck_pass1_check_device_inode(ext2_filsys fs
,
516 struct ext2_inode
*inode
);
517 extern int e2fsck_pass1_check_symlink(ext2_filsys fs
, ext2_ino_t ino
,
518 struct ext2_inode
*inode
, char *buf
);
519 extern void e2fsck_clear_inode(e2fsck_t ctx
, ext2_ino_t ino
,
520 struct ext2_inode
*inode
, int restart_flag
,
522 extern void e2fsck_intercept_block_allocations(e2fsck_t ctx
);
525 extern int e2fsck_process_bad_inode(e2fsck_t ctx
, ext2_ino_t dir
,
526 ext2_ino_t ino
, char *buf
);
527 extern int get_filename_hash(ext2_filsys fs
, int encrypted
, int version
,
528 const char *name
, int len
,
529 ext2_dirhash_t
*ret_hash
,
530 ext2_dirhash_t
*ret_minor_hash
);
533 extern int e2fsck_reconnect_file(e2fsck_t ctx
, ext2_ino_t inode
);
534 extern errcode_t
e2fsck_expand_directory(e2fsck_t ctx
, ext2_ino_t dir
,
535 int num
, int gauranteed_size
);
536 extern ext2_ino_t
e2fsck_get_lost_and_found(e2fsck_t ctx
, int fix
);
537 extern errcode_t
e2fsck_adjust_inode_count(e2fsck_t ctx
, ext2_ino_t ino
,
541 #define E2FSCK_READA_SUPER (0x01)
542 #define E2FSCK_READA_GDT (0x02)
543 #define E2FSCK_READA_BBITMAP (0x04)
544 #define E2FSCK_READA_IBITMAP (0x08)
545 #define E2FSCK_READA_ITABLE (0x10)
546 #define E2FSCK_READA_ALL_FLAGS (0x1F)
547 errcode_t
e2fsck_readahead(ext2_filsys fs
, int flags
, dgrp_t start
,
549 #define E2FSCK_RA_DBLIST_IGNORE_BLOCKCNT (0x01)
550 #define E2FSCK_RA_DBLIST_ALL_FLAGS (0x01)
551 errcode_t
e2fsck_readahead_dblist(ext2_filsys fs
, int flags
,
553 unsigned long long start
,
554 unsigned long long count
);
555 int e2fsck_can_readahead(ext2_filsys fs
);
556 unsigned long long e2fsck_guess_readahead(ext2_filsys fs
);
559 extern region_t
region_create(region_addr_t min
, region_addr_t max
);
560 extern void region_free(region_t region
);
561 extern int region_allocate(region_t region
, region_addr_t start
, int n
);
564 void e2fsck_rehash_dir_later(e2fsck_t ctx
, ext2_ino_t ino
);
565 int e2fsck_dir_will_be_rehashed(e2fsck_t ctx
, ext2_ino_t ino
);
566 errcode_t
e2fsck_rehash_dir(e2fsck_t ctx
, ext2_ino_t ino
,
567 struct problem_context
*pctx
);
568 void e2fsck_rehash_directories(e2fsck_t ctx
);
571 void sigcatcher_setup(void);
574 void check_super_block(e2fsck_t ctx
);
575 int check_backup_super_block(e2fsck_t ctx
);
576 void check_resize_inode(e2fsck_t ctx
);
579 extern void *e2fsck_allocate_memory(e2fsck_t ctx
, unsigned int size
,
580 const char *description
);
581 extern int ask(e2fsck_t ctx
, const char * string
, int def
);
582 extern int ask_yn(e2fsck_t ctx
, const char * string
, int def
);
583 extern void fatal_error(e2fsck_t ctx
, const char * fmt_string
);
584 extern void log_out(e2fsck_t ctx
, const char *fmt
, ...)
585 E2FSCK_ATTR((format(printf
, 2, 3)));
586 extern void log_err(e2fsck_t ctx
, const char *fmt
, ...)
587 E2FSCK_ATTR((format(printf
, 2, 3)));
588 extern void e2fsck_read_bitmaps(e2fsck_t ctx
);
589 extern void e2fsck_write_bitmaps(e2fsck_t ctx
);
590 extern void preenhalt(e2fsck_t ctx
);
591 extern char *string_copy(e2fsck_t ctx
, const char *str
, int len
);
592 extern int fs_proc_check(const char *fs_name
);
593 extern int check_for_modules(const char *fs_name
);
594 #ifdef RESOURCE_TRACK
595 extern void print_resource_track(e2fsck_t ctx
,
597 struct resource_track
*track
,
599 extern void init_resource_track(struct resource_track
*track
,
602 #define print_resource_track(ctx, desc, track, channel) do { } while (0)
603 #define init_resource_track(track, channel) do { } while (0)
605 extern int inode_has_valid_blocks(struct ext2_inode
*inode
);
606 extern void e2fsck_read_inode(e2fsck_t ctx
, unsigned long ino
,
607 struct ext2_inode
* inode
, const char * proc
);
608 extern void e2fsck_read_inode_full(e2fsck_t ctx
, unsigned long ino
,
609 struct ext2_inode
*inode
,
610 const int bufsize
, const char *proc
);
611 extern void e2fsck_write_inode(e2fsck_t ctx
, unsigned long ino
,
612 struct ext2_inode
* inode
, const char * proc
);
613 extern void e2fsck_write_inode_full(e2fsck_t ctx
, unsigned long ino
,
614 struct ext2_inode
* inode
, int bufsize
,
617 extern void mtrace_print(char *mesg
);
619 extern blk64_t
get_backup_sb(e2fsck_t ctx
, ext2_filsys fs
,
620 const char *name
, io_manager manager
);
621 extern int ext2_file_type(unsigned int mode
);
622 extern int write_all(int fd
, char *buf
, size_t count
);
623 void dump_mmp_msg(struct mmp_struct
*mmp
, const char *msg
);
624 errcode_t
e2fsck_mmp_update(ext2_filsys fs
);
626 extern void e2fsck_set_bitmap_type(ext2_filsys fs
,
627 unsigned int default_type
,
628 const char *profile_name
,
629 unsigned int *old_type
);
630 extern errcode_t
e2fsck_allocate_inode_bitmap(ext2_filsys fs
,
633 const char *profile_name
,
634 ext2fs_inode_bitmap
*ret
);
635 extern errcode_t
e2fsck_allocate_block_bitmap(ext2_filsys fs
,
638 const char *profile_name
,
639 ext2fs_block_bitmap
*ret
);
640 extern errcode_t
e2fsck_allocate_subcluster_bitmap(ext2_filsys fs
,
643 const char *profile_name
,
644 ext2fs_block_bitmap
*ret
);
645 unsigned long long get_memory_size(void);
648 extern void e2fsck_clear_progbar(e2fsck_t ctx
);
649 extern int e2fsck_simple_progress(e2fsck_t ctx
, const char *label
,
650 float percent
, unsigned int dpynum
);
652 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
654 #endif /* _E2FSCK_H */