4 * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
5 * redistributed under the terms of the GNU Public License.
16 #ifdef HAVE_SYS_TYPES_H
17 #include <sys/types.h>
19 #ifdef HAVE_SYS_TIME_H
26 #if EXT2_FLAT_INCLUDES
31 #include "ext2fs/ext2_fs.h"
32 #include "ext2fs/ext2fs.h"
33 #include "blkid/blkid.h"
39 #define _(a) (gettext (a))
41 #define N_(a) gettext_noop (a)
45 #define P_(singular, plural, n) (ngettext (singular, plural, n))
47 #define NLS_CAT_NAME "e2fsprogs"
50 #define LOCALEDIR "/usr/share/locale"
55 #define P_(singular, plural, n) ((n) == 1 ? (singular) : (plural))
59 * Exit codes used by fsck-type programs
61 #define FSCK_OK 0 /* No errors */
62 #define FSCK_NONDESTRUCT 1 /* File system errors corrected */
63 #define FSCK_REBOOT 2 /* System should be rebooted */
64 #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
65 #define FSCK_ERROR 8 /* Operational error */
66 #define FSCK_USAGE 16 /* Usage or syntax error */
67 #define FSCK_CANCELED 32 /* Aborted with a signal or ^C */
68 #define FSCK_LIBRARY 128 /* Shared library error */
71 * The last ext2fs revision level that this version of e2fsck is able to
74 #define E2FSCK_CURRENT_REV 1
77 * The directory information structure; stores directory information
78 * collected in earlier passes, to avoid disk i/o in fetching the
79 * directory information.
82 ext2_ino_t ino; /* Inode number */
83 ext2_ino_t dotdot; /* Parent according to '..' */
84 ext2_ino_t parent; /* Parent according to treewalk */
89 * The indexed directory information structure; stores information for
90 * directories which contain a hash tree index.
93 ext2_ino_t ino; /* Inode number */
94 int numblocks; /* number of blocks */
96 short depth; /* depth of tree */
97 struct dx_dirblock_info *dx_block; /* Array of size numblocks */
100 #define DX_DIRBLOCK_ROOT 1
101 #define DX_DIRBLOCK_LEAF 2
102 #define DX_DIRBLOCK_NODE 3
103 #define DX_DIRBLOCK_CORRUPT 4
104 #define DX_DIRBLOCK_CLEARED 8
106 struct dx_dirblock_info {
111 ext2_dirhash_t min_hash;
112 ext2_dirhash_t max_hash;
113 ext2_dirhash_t node_min_hash;
114 ext2_dirhash_t node_max_hash;
117 #define DX_FLAG_REFERENCED 1
118 #define DX_FLAG_DUP_REF 2
119 #define DX_FLAG_FIRST 4
120 #define DX_FLAG_LAST 8
122 #ifdef RESOURCE_TRACK
124 * This structure is used for keeping track of how much resources have
125 * been used for a particular pass of e2fsck.
127 struct resource_track {
128 struct timeval time_start;
129 struct timeval user_start;
130 struct timeval system_start;
138 #define E2F_OPT_READONLY 0x0001
139 #define E2F_OPT_PREEN 0x0002
140 #define E2F_OPT_YES 0x0004
141 #define E2F_OPT_NO 0x0008
142 #define E2F_OPT_TIME 0x0010
143 #define E2F_OPT_TIME2 0x0020
144 #define E2F_OPT_CHECKBLOCKS 0x0040
145 #define E2F_OPT_DEBUG 0x0080
146 #define E2F_OPT_FORCE 0x0100
147 #define E2F_OPT_WRITECHECK 0x0200
148 #define E2F_OPT_COMPRESS_DIRS 0x0400
153 #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
154 #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
155 #define E2F_FLAG_SIGNAL_MASK 0x0003
156 #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
158 #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
160 #define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
161 #define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
162 #define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
163 #define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
164 * specified by the user */
165 #define E2F_FLAG_RESTARTED 0x0200 /* E2fsck has been restarted */
168 * Defines for indicating the e2fsck pass number
175 #define E2F_PASS_1B 6
178 * Define the extended attribute refcount structure
180 typedef struct ea_refcount *ext2_refcount_t;
183 * This is the global e2fsck structure.
185 typedef struct e2fsck_struct *e2fsck_t;
187 struct e2fsck_struct {
189 const char *program_name;
190 char *filesystem_name;
192 int flags; /* E2fsck internal flags */
194 blk_t use_superblock; /* sb requested by user */
195 blk_t superblock; /* sb used to open fs */
196 int blocksize; /* blocksize */
197 blk_t num_blocks; /* Total number of blocks */
199 blkid_cache blkid; /* blkid cache */
204 unsigned long abort_code;
206 int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
209 ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
210 ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
211 ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
212 ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
213 ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
214 ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
216 ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
217 ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
218 ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
223 ext2_icount_t inode_count;
224 ext2_icount_t inode_link_info;
226 ext2_refcount_t refcount;
227 ext2_refcount_t refcount_extra;
230 * Array of flags indicating whether an inode bitmap, block
231 * bitmap, or inode table is invalid
233 int *invalid_inode_bitmap_flag;
234 int *invalid_block_bitmap_flag;
235 int *invalid_inode_table_flag;
236 int invalid_bitmaps; /* There are invalid bitmaps/itable */
244 * For pass1_check_directory and pass1_get_blocks
246 ext2_ino_t stashed_ino;
247 struct ext2_inode *stashed_inode;
250 * Location of the lost and found directory
252 ext2_ino_t lost_and_found;
253 int bad_lost_and_found;
256 * Directory information
260 struct dir_info *dir_info;
263 * Indexed directory information
265 int dx_dir_info_count;
266 int dx_dir_info_size;
267 struct dx_dir_info *dx_dir_info;
270 * Directories to hash
272 ext2_u32_list dirs_to_hash;
277 int process_inode_size;
278 int inode_buffer_blocks;
281 * ext3 journal support
283 io_channel journal_io;
286 #ifdef RESOURCE_TRACK
288 * For timing purposes
290 struct resource_track global_rtrack;
294 * How we display the progress update (for unix)
298 int progress_last_percent;
299 unsigned int progress_last_time;
300 int interactive; /* Are we connected directly to a tty? */
301 char start_meta[2], stop_meta[2];
304 int fs_directory_count;
305 int fs_regular_count;
306 int fs_blockdev_count;
307 int fs_chardev_count;
309 int fs_symlinks_count;
310 int fs_fast_symlinks_count;
313 int fs_badblocks_count;
314 int fs_sockets_count;
320 int fs_ext_attr_inodes;
321 int fs_ext_attr_blocks;
326 * For the use of callers of the e2fsck functions; not used by
327 * e2fsck functions themselves.
332 /* Used by the region allocation code */
333 typedef __u32 region_addr_t;
334 typedef struct region_struct *region_t;
337 #define strnlen(str, x) e2fsck_strnlen((str),(x))
338 extern int e2fsck_strnlen(const char * s, int count);
342 * Procedure declarations
345 extern void e2fsck_pass1(e2fsck_t ctx);
346 extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
347 extern void e2fsck_pass2(e2fsck_t ctx);
348 extern void e2fsck_pass3(e2fsck_t ctx);
349 extern void e2fsck_pass4(e2fsck_t ctx);
350 extern void e2fsck_pass5(e2fsck_t ctx);
353 extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
354 extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
355 extern void e2fsck_free_context(e2fsck_t ctx);
356 extern int e2fsck_run(e2fsck_t ctx);
360 extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
361 int replace_bad_blocks);
364 extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
365 extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ext2_ino_t ino);
366 extern void e2fsck_free_dir_info(e2fsck_t ctx);
367 extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
368 extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control);
371 extern void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks);
372 extern struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino);
373 extern void e2fsck_free_dx_dir_info(e2fsck_t ctx);
374 extern int e2fsck_get_num_dx_dirinfo(e2fsck_t ctx);
375 extern struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control);
378 extern errcode_t ea_refcount_create(int size, ext2_refcount_t *ret);
379 extern void ea_refcount_free(ext2_refcount_t refcount);
380 extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk,
382 extern errcode_t ea_refcount_increment(ext2_refcount_t refcount,
383 blk_t blk, int *ret);
384 extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount,
385 blk_t blk, int *ret);
386 extern errcode_t ea_refcount_store(ext2_refcount_t refcount,
387 blk_t blk, int count);
388 extern blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount);
389 extern void ea_refcount_intr_begin(ext2_refcount_t refcount);
390 extern blk_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret);
393 extern const char *ehandler_operation(const char *op);
394 extern void ehandler_init(io_channel channel);
397 extern int e2fsck_check_ext3_journal(e2fsck_t ctx);
398 extern int e2fsck_run_ext3_journal(e2fsck_t ctx);
399 extern void e2fsck_move_ext3_journal(e2fsck_t ctx);
402 extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool);
403 extern int e2fsck_pass1_check_device_inode(ext2_filsys fs,
404 struct ext2_inode *inode);
405 extern int e2fsck_pass1_check_symlink(ext2_filsys fs,
406 struct ext2_inode *inode, char *buf);
409 extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
410 ext2_ino_t ino, char *buf);
413 extern int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode);
414 extern errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
415 int num, int gauranteed_size);
416 extern ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix);
417 extern errcode_t e2fsck_adjust_inode_count(e2fsck_t ctx, ext2_ino_t ino,
422 extern region_t region_create(region_addr_t min, region_addr_t max);
423 extern void region_free(region_t region);
424 extern int region_allocate(region_t region, region_addr_t start, int n);
427 errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino);
428 void e2fsck_rehash_directories(e2fsck_t ctx);
431 void check_super_block(e2fsck_t ctx);
432 errcode_t e2fsck_get_device_size(e2fsck_t ctx);
435 void swap_filesys(e2fsck_t ctx);
438 extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
439 const char *description);
440 extern int ask(e2fsck_t ctx, const char * string, int def);
441 extern int ask_yn(const char * string, int def);
442 extern void fatal_error(e2fsck_t ctx, const char * fmt_string);
443 extern void e2fsck_read_bitmaps(e2fsck_t ctx);
444 extern void e2fsck_write_bitmaps(e2fsck_t ctx);
445 extern void preenhalt(e2fsck_t ctx);
446 extern char *string_copy(e2fsck_t ctx, const char *str, int len);
447 #ifdef RESOURCE_TRACK
448 extern void print_resource_track(const char *desc,
449 struct resource_track *track);
450 extern void init_resource_track(struct resource_track *track);
452 extern int inode_has_valid_blocks(struct ext2_inode *inode);
453 extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
454 struct ext2_inode * inode, const char * proc);
455 extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
456 struct ext2_inode * inode, const char * proc);
458 extern void mtrace_print(char *mesg);
460 extern blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs,
461 const char *name, io_manager manager);
462 extern int ext2_file_type(unsigned int mode);
465 extern void e2fsck_clear_progbar(e2fsck_t ctx);
466 extern int e2fsck_simple_progress(e2fsck_t ctx, const char *label,
467 float percent, unsigned int dpynum);