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)
46 #define NLS_CAT_NAME "e2fsprogs"
49 #define LOCALEDIR "/usr/share/locale"
57 * Exit codes used by fsck-type programs
59 #define FSCK_OK 0 /* No errors */
60 #define FSCK_NONDESTRUCT 1 /* File system errors corrected */
61 #define FSCK_REBOOT 2 /* System should be rebooted */
62 #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
63 #define FSCK_ERROR 8 /* Operational error */
64 #define FSCK_USAGE 16 /* Usage or syntax error */
65 #define FSCK_CANCELED 32 /* Aborted with a signal or ^C */
66 #define FSCK_LIBRARY 128 /* Shared library error */
69 * The last ext2fs revision level that this version of e2fsck is able to
72 #define E2FSCK_CURRENT_REV 1
75 * The directory information structure; stores directory information
76 * collected in earlier passes, to avoid disk i/o in fetching the
77 * directory information.
80 ext2_ino_t ino; /* Inode number */
81 ext2_ino_t dotdot; /* Parent according to '..' */
82 ext2_ino_t parent; /* Parent according to treewalk */
87 * The indexed directory information structure; stores information for
88 * directories which contain a hash tree index.
91 ext2_ino_t ino; /* Inode number */
92 int numblocks; /* number of blocks */
94 short depth; /* depth of tree */
95 struct dx_dirblock_info *dx_block; /* Array of size numblocks */
98 #define DX_DIRBLOCK_ROOT 1
99 #define DX_DIRBLOCK_LEAF 2
100 #define DX_DIRBLOCK_NODE 3
101 #define DX_DIRBLOCK_CORRUPT 4
102 #define DX_DIRBLOCK_CLEARED 8
104 struct dx_dirblock_info {
109 ext2_dirhash_t min_hash;
110 ext2_dirhash_t max_hash;
111 ext2_dirhash_t node_min_hash;
112 ext2_dirhash_t node_max_hash;
115 #define DX_FLAG_REFERENCED 1
116 #define DX_FLAG_DUP_REF 2
117 #define DX_FLAG_FIRST 4
118 #define DX_FLAG_LAST 8
120 #ifdef RESOURCE_TRACK
122 * This structure is used for keeping track of how much resources have
123 * been used for a particular pass of e2fsck.
125 struct resource_track {
126 struct timeval time_start;
127 struct timeval user_start;
128 struct timeval system_start;
136 #define E2F_OPT_READONLY 0x0001
137 #define E2F_OPT_PREEN 0x0002
138 #define E2F_OPT_YES 0x0004
139 #define E2F_OPT_NO 0x0008
140 #define E2F_OPT_TIME 0x0010
141 #define E2F_OPT_TIME2 0x0020
142 #define E2F_OPT_CHECKBLOCKS 0x0040
143 #define E2F_OPT_DEBUG 0x0080
144 #define E2F_OPT_FORCE 0x0100
145 #define E2F_OPT_WRITECHECK 0x0200
146 #define E2F_OPT_COMPRESS_DIRS 0x0400
151 #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
152 #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
153 #define E2F_FLAG_SIGNAL_MASK 0x0003
154 #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
156 #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
158 #define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
159 #define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
160 #define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
161 #define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
162 * specified by the user */
163 #define E2F_FLAG_RESTARTED 0x0100 /* E2fsck has been restarted */
166 * Defines for indicating the e2fsck pass number
173 #define E2F_PASS_1B 6
176 * Define the extended attribute refcount structure
178 typedef struct ea_refcount *ext2_refcount_t;
181 * This is the global e2fsck structure.
183 typedef struct e2fsck_struct *e2fsck_t;
185 struct e2fsck_struct {
187 const char *program_name;
188 char *filesystem_name;
190 int flags; /* E2fsck internal flags */
192 blk_t use_superblock; /* sb requested by user */
193 blk_t superblock; /* sb used to open fs */
194 int blocksize; /* blocksize */
195 blk_t num_blocks; /* Total number of blocks */
197 blkid_cache blkid; /* blkid cache */
202 unsigned long abort_code;
204 int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
207 ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
208 ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
209 ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
210 ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
211 ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
212 ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
214 ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
215 ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
216 ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
221 ext2_icount_t inode_count;
222 ext2_icount_t inode_link_info;
224 ext2_refcount_t refcount;
225 ext2_refcount_t refcount_extra;
228 * Array of flags indicating whether an inode bitmap, block
229 * bitmap, or inode table is invalid
231 int *invalid_inode_bitmap_flag;
232 int *invalid_block_bitmap_flag;
233 int *invalid_inode_table_flag;
234 int invalid_bitmaps; /* There are invalid bitmaps/itable */
242 * For pass1_check_directory and pass1_get_blocks
244 ext2_ino_t stashed_ino;
245 struct ext2_inode *stashed_inode;
248 * Location of the lost and found directory
250 ext2_ino_t lost_and_found;
251 int bad_lost_and_found;
254 * Directory information
258 struct dir_info *dir_info;
261 * Indexed directory information
263 int dx_dir_info_count;
264 int dx_dir_info_size;
265 struct dx_dir_info *dx_dir_info;
268 * Directories to hash
270 ext2_u32_list dirs_to_hash;
275 int process_inode_size;
276 int inode_buffer_blocks;
279 * ext3 journal support
281 io_channel journal_io;
284 #ifdef RESOURCE_TRACK
286 * For timing purposes
288 struct resource_track global_rtrack;
292 * How we display the progress update (for unix)
296 int progress_last_percent;
297 unsigned int progress_last_time;
300 int fs_directory_count;
301 int fs_regular_count;
302 int fs_blockdev_count;
303 int fs_chardev_count;
305 int fs_symlinks_count;
306 int fs_fast_symlinks_count;
309 int fs_badblocks_count;
310 int fs_sockets_count;
316 int fs_ext_attr_inodes;
317 int fs_ext_attr_blocks;
322 * For the use of callers of the e2fsck functions; not used by
323 * e2fsck functions themselves.
328 /* Used by the region allocation code */
329 typedef __u32 region_addr_t;
330 typedef struct region_struct *region_t;
333 #define strnlen(str, x) e2fsck_strnlen((str),(x))
334 extern int e2fsck_strnlen(const char * s, int count);
338 * Procedure declarations
341 extern void e2fsck_pass1(e2fsck_t ctx);
342 extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
343 extern void e2fsck_pass2(e2fsck_t ctx);
344 extern void e2fsck_pass3(e2fsck_t ctx);
345 extern void e2fsck_pass4(e2fsck_t ctx);
346 extern void e2fsck_pass5(e2fsck_t ctx);
349 extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
350 extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
351 extern void e2fsck_free_context(e2fsck_t ctx);
352 extern int e2fsck_run(e2fsck_t ctx);
356 extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
357 int replace_bad_blocks);
358 extern void test_disk(e2fsck_t ctx);
361 extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
362 extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ext2_ino_t ino);
363 extern void e2fsck_free_dir_info(e2fsck_t ctx);
364 extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
365 extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control);
368 extern void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks);
369 extern struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino);
370 extern void e2fsck_free_dx_dir_info(e2fsck_t ctx);
371 extern int e2fsck_get_num_dx_dirinfo(e2fsck_t ctx);
372 extern struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control);
375 extern errcode_t ea_refcount_create(int size, ext2_refcount_t *ret);
376 extern void ea_refcount_free(ext2_refcount_t refcount);
377 extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk,
379 extern errcode_t ea_refcount_increment(ext2_refcount_t refcount,
380 blk_t blk, int *ret);
381 extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount,
382 blk_t blk, int *ret);
383 extern errcode_t ea_refcount_store(ext2_refcount_t refcount,
384 blk_t blk, int count);
385 extern blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount);
386 extern void ea_refcount_intr_begin(ext2_refcount_t refcount);
387 extern blk_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret);
390 extern const char *ehandler_operation(const char *op);
391 extern void ehandler_init(io_channel channel);
394 extern int e2fsck_check_ext3_journal(e2fsck_t ctx);
395 extern int e2fsck_run_ext3_journal(e2fsck_t ctx);
396 extern void e2fsck_move_ext3_journal(e2fsck_t ctx);
399 extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool);
400 extern int e2fsck_pass1_check_device_inode(ext2_filsys fs,
401 struct ext2_inode *inode);
402 extern int e2fsck_pass1_check_symlink(ext2_filsys fs,
403 struct ext2_inode *inode, char *buf);
406 extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
407 ext2_ino_t ino, char *buf);
410 extern int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode);
411 extern errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
412 int num, int gauranteed_size);
413 extern ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix);
414 extern errcode_t e2fsck_adjust_inode_count(e2fsck_t ctx, ext2_ino_t ino,
419 extern region_t region_create(region_addr_t min, region_addr_t max);
420 extern void region_free(region_t region);
421 extern int region_allocate(region_t region, region_addr_t start, int n);
424 errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino);
425 void e2fsck_rehash_directories(e2fsck_t ctx);
428 void check_super_block(e2fsck_t ctx);
429 errcode_t e2fsck_get_device_size(e2fsck_t ctx);
432 void swap_filesys(e2fsck_t ctx);
435 extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
436 const char *description);
437 extern int ask(e2fsck_t ctx, const char * string, int def);
438 extern int ask_yn(const char * string, int def);
439 extern void fatal_error(e2fsck_t ctx, const char * fmt_string);
440 extern void e2fsck_read_bitmaps(e2fsck_t ctx);
441 extern void e2fsck_write_bitmaps(e2fsck_t ctx);
442 extern void preenhalt(e2fsck_t ctx);
443 extern char *string_copy(e2fsck_t ctx, const char *str, int len);
444 #ifdef RESOURCE_TRACK
445 extern void print_resource_track(const char *desc,
446 struct resource_track *track);
447 extern void init_resource_track(struct resource_track *track);
449 extern int inode_has_valid_blocks(struct ext2_inode *inode);
450 extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
451 struct ext2_inode * inode, const char * proc);
452 extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
453 struct ext2_inode * inode, const char * proc);
455 extern void mtrace_print(char *mesg);
457 extern blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs,
458 const char *name, io_manager manager);
459 extern int ext2_file_type(unsigned int mode);
462 extern void e2fsck_clear_progbar(e2fsck_t ctx);
463 extern int e2fsck_simple_progress(e2fsck_t ctx, const char *label,
464 float percent, unsigned int dpynum);