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
30 #include "ext2fs/ext2_fs.h"
31 #include "ext2fs/ext2fs.h"
37 #define _(a) (gettext (a))
39 #define N_(a) gettext_noop (a)
44 #define NLS_CAT_NAME "e2fsprogs"
45 #define LOCALEDIR "/usr/share/locale"
53 * Exit codes used by fsck-type programs
55 #define FSCK_OK 0 /* No errors */
56 #define FSCK_NONDESTRUCT 1 /* File system errors corrected */
57 #define FSCK_REBOOT 2 /* System should be rebooted */
58 #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
59 #define FSCK_ERROR 8 /* Operational error */
60 #define FSCK_USAGE 16 /* Usage or syntax error */
61 #define FSCK_CANCELED 32 /* Aborted with a signal or ^C */
62 #define FSCK_LIBRARY 128 /* Shared library error */
65 * The last ext2fs revision level that this version of e2fsck is able to
68 #define E2FSCK_CURRENT_REV 1
71 * The directory information structure; stores directory information
72 * collected in earlier passes, to avoid disk i/o in fetching the
73 * directory information.
76 ext2_ino_t ino; /* Inode number */
77 ext2_ino_t dotdot; /* Parent according to '..' */
78 ext2_ino_t parent; /* Parent according to treewalk */
83 * The indexed directory information structure; stores information for
84 * directories which contain a hash tree index.
87 ext2_ino_t ino; /* Inode number */
88 int numblocks; /* number of blocks */
90 short depth; /* depth of tree */
91 struct dx_dirblock_info *dx_block; /* Array of size numblocks */
94 #define DX_DIRBLOCK_ROOT 1
95 #define DX_DIRBLOCK_LEAF 2
96 #define DX_DIRBLOCK_NODE 3
97 #define DX_DIRBLOCK_CORRUPT 4
98 #define DX_DIRBLOCK_CLEARED 8
100 struct dx_dirblock_info {
105 ext2_dirhash_t min_hash;
106 ext2_dirhash_t max_hash;
107 ext2_dirhash_t node_min_hash;
108 ext2_dirhash_t node_max_hash;
111 #define DX_FLAG_REFERENCED 1
112 #define DX_FLAG_DUP_REF 2
113 #define DX_FLAG_FIRST 4
114 #define DX_FLAG_LAST 8
116 #ifdef RESOURCE_TRACK
118 * This structure is used for keeping track of how much resources have
119 * been used for a particular pass of e2fsck.
121 struct resource_track {
122 struct timeval time_start;
123 struct timeval user_start;
124 struct timeval system_start;
132 #define E2F_OPT_READONLY 0x0001
133 #define E2F_OPT_PREEN 0x0002
134 #define E2F_OPT_YES 0x0004
135 #define E2F_OPT_NO 0x0008
136 #define E2F_OPT_TIME 0x0010
137 #define E2F_OPT_TIME2 0x0020
138 #define E2F_OPT_CHECKBLOCKS 0x0040
139 #define E2F_OPT_DEBUG 0x0080
140 #define E2F_OPT_FORCE 0x0100
141 #define E2F_OPT_WRITECHECK 0x0200
142 #define E2F_OPT_COMPRESS_DIRS 0x0400
147 #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
148 #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
149 #define E2F_FLAG_SIGNAL_MASK 0x0003
150 #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
152 #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
154 #define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
155 #define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
156 #define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
157 #define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
158 * specified by the user */
159 #define E2F_FLAG_RESTARTED 0x0100 /* E2fsck has been restarted */
162 * Defines for indicating the e2fsck pass number
169 #define E2F_PASS_1B 6
172 * Define the extended attribute refcount structure
174 typedef struct ea_refcount *ext2_refcount_t;
177 * This is the global e2fsck structure.
179 typedef struct e2fsck_struct *e2fsck_t;
181 struct e2fsck_struct {
183 const char *program_name;
184 const char *filesystem_name;
185 const char *device_name;
186 int flags; /* E2fsck internal flags */
188 blk_t use_superblock; /* sb requested by user */
189 blk_t superblock; /* sb used to open fs */
190 int blocksize; /* blocksize */
191 blk_t num_blocks; /* Total number of blocks */
197 unsigned long abort_code;
199 int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
202 ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
203 ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
204 ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
205 ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
206 ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
207 ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
209 ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
210 ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
211 ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
216 ext2_icount_t inode_count;
217 ext2_icount_t inode_link_info;
219 ext2_refcount_t refcount;
220 ext2_refcount_t refcount_extra;
223 * Array of flags indicating whether an inode bitmap, block
224 * bitmap, or inode table is invalid
226 int *invalid_inode_bitmap_flag;
227 int *invalid_block_bitmap_flag;
228 int *invalid_inode_table_flag;
229 int invalid_bitmaps; /* There are invalid bitmaps/itable */
237 * For pass1_check_directory and pass1_get_blocks
239 ext2_ino_t stashed_ino;
240 struct ext2_inode *stashed_inode;
243 * Location of the lost and found directory
245 ext2_ino_t lost_and_found;
246 int bad_lost_and_found;
249 * Directory information
253 struct dir_info *dir_info;
256 * Indexed directory information
258 int dx_dir_info_count;
259 int dx_dir_info_size;
260 struct dx_dir_info *dx_dir_info;
263 * Directories to hash
265 ext2_u32_list dirs_to_hash;
270 int process_inode_size;
271 int inode_buffer_blocks;
274 * ext3 journal support
276 io_channel journal_io;
277 const char *journal_name;
279 #ifdef RESOURCE_TRACK
281 * For timing purposes
283 struct resource_track global_rtrack;
287 * How we display the progress update (for unix)
291 int progress_last_percent;
292 unsigned int progress_last_time;
295 int fs_directory_count;
296 int fs_regular_count;
297 int fs_blockdev_count;
298 int fs_chardev_count;
300 int fs_symlinks_count;
301 int fs_fast_symlinks_count;
304 int fs_badblocks_count;
305 int fs_sockets_count;
311 int fs_ext_attr_inodes;
312 int fs_ext_attr_blocks;
317 * For the use of callers of the e2fsck functions; not used by
318 * e2fsck functions themselves.
323 /* Used by the region allocation code */
324 typedef __u32 region_addr_t;
325 typedef struct region_struct *region_t;
328 * Procedure declarations
331 extern void e2fsck_pass1(e2fsck_t ctx);
332 extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
333 extern void e2fsck_pass2(e2fsck_t ctx);
334 extern void e2fsck_pass3(e2fsck_t ctx);
335 extern void e2fsck_pass4(e2fsck_t ctx);
336 extern void e2fsck_pass5(e2fsck_t ctx);
339 extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
340 extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
341 extern void e2fsck_free_context(e2fsck_t ctx);
342 extern int e2fsck_run(e2fsck_t ctx);
346 extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
347 int replace_bad_blocks);
348 extern void test_disk(e2fsck_t ctx);
351 extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
352 extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ext2_ino_t ino);
353 extern void e2fsck_free_dir_info(e2fsck_t ctx);
354 extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
355 extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control);
358 extern void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks);
359 extern struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino);
360 extern void e2fsck_free_dx_dir_info(e2fsck_t ctx);
361 extern int e2fsck_get_num_dx_dirinfo(e2fsck_t ctx);
362 extern struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control);
365 extern errcode_t ea_refcount_create(int size, ext2_refcount_t *ret);
366 extern void ea_refcount_free(ext2_refcount_t refcount);
367 extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk,
369 extern errcode_t ea_refcount_increment(ext2_refcount_t refcount,
370 blk_t blk, int *ret);
371 extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount,
372 blk_t blk, int *ret);
373 extern errcode_t ea_refcount_store(ext2_refcount_t refcount,
374 blk_t blk, int count);
375 extern blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount);
376 extern void ea_refcount_intr_begin(ext2_refcount_t refcount);
377 extern blk_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret);
380 extern const char *ehandler_operation(const char *op);
381 extern void ehandler_init(io_channel channel);
384 extern int e2fsck_check_ext3_journal(e2fsck_t ctx);
385 extern int e2fsck_run_ext3_journal(e2fsck_t ctx);
386 extern void e2fsck_move_ext3_journal(e2fsck_t ctx);
389 extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool);
390 extern int e2fsck_pass1_check_device_inode(ext2_filsys fs,
391 struct ext2_inode *inode);
392 extern int e2fsck_pass1_check_symlink(ext2_filsys fs,
393 struct ext2_inode *inode, char *buf);
396 extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
397 ext2_ino_t ino, char *buf);
400 extern int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode);
401 extern errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
402 int num, int gauranteed_size);
403 extern ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix);
407 extern region_t region_create(region_addr_t min, region_addr_t max);
408 extern void region_free(region_t region);
409 extern int region_allocate(region_t region, region_addr_t start, int n);
412 errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino);
413 void e2fsck_rehash_directories(e2fsck_t ctx);
416 void check_super_block(e2fsck_t ctx);
417 errcode_t e2fsck_get_device_size(e2fsck_t ctx);
420 void swap_filesys(e2fsck_t ctx);
423 extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
424 const char *description);
425 extern int ask(e2fsck_t ctx, const char * string, int def);
426 extern int ask_yn(const char * string, int def);
427 extern void fatal_error(e2fsck_t ctx, const char * fmt_string);
428 extern void e2fsck_read_bitmaps(e2fsck_t ctx);
429 extern void e2fsck_write_bitmaps(e2fsck_t ctx);
430 extern void preenhalt(e2fsck_t ctx);
431 #ifdef RESOURCE_TRACK
432 extern void print_resource_track(const char *desc,
433 struct resource_track *track);
434 extern void init_resource_track(struct resource_track *track);
436 extern int inode_has_valid_blocks(struct ext2_inode *inode);
437 extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
438 struct ext2_inode * inode, const char * proc);
439 extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
440 struct ext2_inode * inode, const char * proc);
442 extern void mtrace_print(char *mesg);
444 extern blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs,
445 const char *name, io_manager manager);
446 extern int ext2_file_type(unsigned int mode);
449 extern void e2fsck_clear_progbar(e2fsck_t ctx);