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"
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 * Exit codes used by fsck-type programs
67 #define FSCK_OK 0 /* No errors */
68 #define FSCK_NONDESTRUCT 1 /* File system errors corrected */
69 #define FSCK_REBOOT 2 /* System should be rebooted */
70 #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
71 #define FSCK_ERROR 8 /* Operational error */
72 #define FSCK_USAGE 16 /* Usage or syntax error */
73 #define FSCK_CANCELED 32 /* Aborted with a signal or ^C */
74 #define FSCK_LIBRARY 128 /* Shared library error */
77 * The last ext2fs revision level that this version of e2fsck is able to
80 #define E2FSCK_CURRENT_REV 1
83 * The directory information structure; stores directory information
84 * collected in earlier passes, to avoid disk i/o in fetching the
85 * directory information.
88 ext2_ino_t ino; /* Inode number */
89 ext2_ino_t dotdot; /* Parent according to '..' */
90 ext2_ino_t parent; /* Parent according to treewalk */
95 * The indexed directory information structure; stores information for
96 * directories which contain a hash tree index.
99 ext2_ino_t ino; /* Inode number */
100 int numblocks; /* number of blocks */
102 short depth; /* depth of tree */
103 struct dx_dirblock_info *dx_block; /* Array of size numblocks */
106 #define DX_DIRBLOCK_ROOT 1
107 #define DX_DIRBLOCK_LEAF 2
108 #define DX_DIRBLOCK_NODE 3
109 #define DX_DIRBLOCK_CORRUPT 4
110 #define DX_DIRBLOCK_CLEARED 8
112 struct dx_dirblock_info {
117 ext2_dirhash_t min_hash;
118 ext2_dirhash_t max_hash;
119 ext2_dirhash_t node_min_hash;
120 ext2_dirhash_t node_max_hash;
123 #define DX_FLAG_REFERENCED 1
124 #define DX_FLAG_DUP_REF 2
125 #define DX_FLAG_FIRST 4
126 #define DX_FLAG_LAST 8
128 #ifdef RESOURCE_TRACK
130 * This structure is used for keeping track of how much resources have
131 * been used for a particular pass of e2fsck.
133 struct resource_track {
134 struct timeval time_start;
135 struct timeval user_start;
136 struct timeval system_start;
144 #define E2F_OPT_READONLY 0x0001
145 #define E2F_OPT_PREEN 0x0002
146 #define E2F_OPT_YES 0x0004
147 #define E2F_OPT_NO 0x0008
148 #define E2F_OPT_TIME 0x0010
149 #define E2F_OPT_TIME2 0x0020
150 #define E2F_OPT_CHECKBLOCKS 0x0040
151 #define E2F_OPT_DEBUG 0x0080
152 #define E2F_OPT_FORCE 0x0100
153 #define E2F_OPT_WRITECHECK 0x0200
154 #define E2F_OPT_COMPRESS_DIRS 0x0400
159 #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
160 #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
161 #define E2F_FLAG_SIGNAL_MASK 0x0003
162 #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
164 #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
166 #define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
167 #define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
168 #define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
169 #define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
170 * specified by the user */
171 #define E2F_FLAG_RESTARTED 0x0200 /* E2fsck has been restarted */
172 #define E2F_FLAG_RESIZE_INODE 0x0400 /* Request to recreate resize inode */
173 #define E2F_FLAG_GOT_DEVSIZE 0x0800 /* Device size has been fetched */
176 * Defines for indicating the e2fsck pass number
183 #define E2F_PASS_1B 6
186 * Define the extended attribute refcount structure
188 typedef struct ea_refcount *ext2_refcount_t;
191 * This is the global e2fsck structure.
193 typedef struct e2fsck_struct *e2fsck_t;
195 struct e2fsck_struct {
197 const char *program_name;
198 char *filesystem_name;
201 int flags; /* E2fsck internal flags */
203 blk_t use_superblock; /* sb requested by user */
204 blk_t superblock; /* sb used to open fs */
205 int blocksize; /* blocksize */
206 blk_t num_blocks; /* Total number of blocks */
208 blkid_cache blkid; /* blkid cache */
213 unsigned long abort_code;
215 int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
218 ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
219 ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
220 ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
221 ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
222 ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
223 ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
225 ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
226 ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
227 ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
232 ext2_icount_t inode_count;
233 ext2_icount_t inode_link_info;
235 ext2_refcount_t refcount;
236 ext2_refcount_t refcount_extra;
239 * Array of flags indicating whether an inode bitmap, block
240 * bitmap, or inode table is invalid
242 int *invalid_inode_bitmap_flag;
243 int *invalid_block_bitmap_flag;
244 int *invalid_inode_table_flag;
245 int invalid_bitmaps; /* There are invalid bitmaps/itable */
253 * For pass1_check_directory and pass1_get_blocks
255 ext2_ino_t stashed_ino;
256 struct ext2_inode *stashed_inode;
259 * Location of the lost and found directory
261 ext2_ino_t lost_and_found;
262 int bad_lost_and_found;
265 * Directory information
267 struct dir_info_db *dir_info;
270 * Indexed directory information
272 int dx_dir_info_count;
273 int dx_dir_info_size;
274 struct dx_dir_info *dx_dir_info;
277 * Directories to hash
279 ext2_u32_list dirs_to_hash;
284 int process_inode_size;
285 int inode_buffer_blocks;
288 * ext3 journal support
290 io_channel journal_io;
293 #ifdef RESOURCE_TRACK
295 * For timing purposes
297 struct resource_track global_rtrack;
301 * How we display the progress update (for unix)
305 int progress_last_percent;
306 unsigned int progress_last_time;
307 int interactive; /* Are we connected directly to a tty? */
308 char start_meta[2], stop_meta[2];
311 __u32 fs_directory_count;
312 __u32 fs_regular_count;
313 __u32 fs_blockdev_count;
314 __u32 fs_chardev_count;
315 __u32 fs_links_count;
316 __u32 fs_symlinks_count;
317 __u32 fs_fast_symlinks_count;
319 __u32 fs_total_count;
320 __u32 fs_badblocks_count;
321 __u32 fs_sockets_count;
327 __u32 fs_ext_attr_inodes;
328 __u32 fs_ext_attr_blocks;
332 time_t time_fudge; /* For working around buggy init scripts */
338 * For the use of callers of the e2fsck functions; not used by
339 * e2fsck functions themselves.
344 /* Used by the region allocation code */
345 typedef __u32 region_addr_t;
346 typedef struct region_struct *region_t;
349 #define strnlen(str, x) e2fsck_strnlen((str),(x))
350 extern int e2fsck_strnlen(const char * s, int count);
354 * Procedure declarations
357 extern void e2fsck_pass1(e2fsck_t ctx);
358 extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
359 extern void e2fsck_pass2(e2fsck_t ctx);
360 extern void e2fsck_pass3(e2fsck_t ctx);
361 extern void e2fsck_pass4(e2fsck_t ctx);
362 extern void e2fsck_pass5(e2fsck_t ctx);
365 extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
366 extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
367 extern void e2fsck_free_context(e2fsck_t ctx);
368 extern int e2fsck_run(e2fsck_t ctx);
372 extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
373 int replace_bad_blocks);
376 extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
377 extern void e2fsck_free_dir_info(e2fsck_t ctx);
378 extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
379 extern struct dir_info_iter *e2fsck_dir_info_iter_begin(e2fsck_t ctx);
380 extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx,
381 struct dir_info_iter *);
382 extern void e2fsck_dir_info_iter_end(e2fsck_t ctx, struct dir_info_iter *);
383 extern int e2fsck_dir_info_set_parent(e2fsck_t ctx, ext2_ino_t ino,
385 extern int e2fsck_dir_info_set_dotdot(e2fsck_t ctx, ext2_ino_t ino,
387 extern int e2fsck_dir_info_get_parent(e2fsck_t ctx, ext2_ino_t ino,
389 extern int e2fsck_dir_info_get_dotdot(e2fsck_t ctx, ext2_ino_t ino,
393 extern void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks);
394 extern struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino);
395 extern void e2fsck_free_dx_dir_info(e2fsck_t ctx);
396 extern int e2fsck_get_num_dx_dirinfo(e2fsck_t ctx);
397 extern struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control);
400 extern errcode_t ea_refcount_create(int size, ext2_refcount_t *ret);
401 extern void ea_refcount_free(ext2_refcount_t refcount);
402 extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk,
404 extern errcode_t ea_refcount_increment(ext2_refcount_t refcount,
405 blk_t blk, int *ret);
406 extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount,
407 blk_t blk, int *ret);
408 extern errcode_t ea_refcount_store(ext2_refcount_t refcount,
409 blk_t blk, int count);
410 extern blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount);
411 extern void ea_refcount_intr_begin(ext2_refcount_t refcount);
412 extern blk_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret);
415 extern const char *ehandler_operation(const char *op);
416 extern void ehandler_init(io_channel channel);
419 extern int e2fsck_check_ext3_journal(e2fsck_t ctx);
420 extern int e2fsck_run_ext3_journal(e2fsck_t ctx);
421 extern void e2fsck_move_ext3_journal(e2fsck_t ctx);
422 extern int e2fsck_fix_ext3_journal_hint(e2fsck_t ctx);
425 extern void e2fsck_setup_tdb_icount(e2fsck_t ctx, int flags,
427 extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool);
428 extern int e2fsck_pass1_check_device_inode(ext2_filsys fs,
429 struct ext2_inode *inode);
430 extern int e2fsck_pass1_check_symlink(ext2_filsys fs,
431 struct ext2_inode *inode, char *buf);
434 extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
435 ext2_ino_t ino, char *buf);
438 extern int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode);
439 extern errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
440 int num, int gauranteed_size);
441 extern ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix);
442 extern errcode_t e2fsck_adjust_inode_count(e2fsck_t ctx, ext2_ino_t ino,
447 extern region_t region_create(region_addr_t min, region_addr_t max);
448 extern void region_free(region_t region);
449 extern int region_allocate(region_t region, region_addr_t start, int n);
452 errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino);
453 void e2fsck_rehash_directories(e2fsck_t ctx);
456 void check_super_block(e2fsck_t ctx);
457 int check_backup_super_block(e2fsck_t ctx);
460 void swap_filesys(e2fsck_t ctx);
463 extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
464 const char *description);
465 extern int ask(e2fsck_t ctx, const char * string, int def);
466 extern int ask_yn(const char * string, int def);
467 extern void fatal_error(e2fsck_t ctx, const char * fmt_string);
468 extern void e2fsck_read_bitmaps(e2fsck_t ctx);
469 extern void e2fsck_write_bitmaps(e2fsck_t ctx);
470 extern void preenhalt(e2fsck_t ctx);
471 extern char *string_copy(e2fsck_t ctx, const char *str, int len);
472 #ifdef RESOURCE_TRACK
473 extern void print_resource_track(const char *desc,
474 struct resource_track *track);
475 extern void init_resource_track(struct resource_track *track);
477 extern int inode_has_valid_blocks(struct ext2_inode *inode);
478 extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
479 struct ext2_inode * inode, const char * proc);
480 extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
481 struct ext2_inode * inode, const char * proc);
482 extern void e2fsck_write_inode_full(e2fsck_t ctx, unsigned long ino,
483 struct ext2_inode * inode, int bufsize,
486 extern void mtrace_print(char *mesg);
488 extern blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs,
489 const char *name, io_manager manager);
490 extern int ext2_file_type(unsigned int mode);
493 extern void e2fsck_clear_progbar(e2fsck_t ctx);
494 extern int e2fsck_simple_progress(e2fsck_t ctx, const char *label,
495 float percent, unsigned int dpynum);
496 #endif /* _E2FSCK_H */