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"
47 #define LOCALEDIR "/usr/share/locale"
55 * Exit codes used by fsck-type programs
57 #define FSCK_OK 0 /* No errors */
58 #define FSCK_NONDESTRUCT 1 /* File system errors corrected */
59 #define FSCK_REBOOT 2 /* System should be rebooted */
60 #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
61 #define FSCK_ERROR 8 /* Operational error */
62 #define FSCK_USAGE 16 /* Usage or syntax error */
63 #define FSCK_CANCELED 32 /* Aborted with a signal or ^C */
64 #define FSCK_LIBRARY 128 /* Shared library error */
67 * The last ext2fs revision level that this version of e2fsck is able to
70 #define E2FSCK_CURRENT_REV 1
73 * The directory information structure; stores directory information
74 * collected in earlier passes, to avoid disk i/o in fetching the
75 * directory information.
78 ext2_ino_t ino; /* Inode number */
79 ext2_ino_t dotdot; /* Parent according to '..' */
80 ext2_ino_t parent; /* Parent according to treewalk */
85 * The indexed directory information structure; stores information for
86 * directories which contain a hash tree index.
89 ext2_ino_t ino; /* Inode number */
90 int numblocks; /* number of blocks */
92 short depth; /* depth of tree */
93 struct dx_dirblock_info *dx_block; /* Array of size numblocks */
96 #define DX_DIRBLOCK_ROOT 1
97 #define DX_DIRBLOCK_LEAF 2
98 #define DX_DIRBLOCK_NODE 3
99 #define DX_DIRBLOCK_CORRUPT 4
100 #define DX_DIRBLOCK_CLEARED 8
102 struct dx_dirblock_info {
107 ext2_dirhash_t min_hash;
108 ext2_dirhash_t max_hash;
109 ext2_dirhash_t node_min_hash;
110 ext2_dirhash_t node_max_hash;
113 #define DX_FLAG_REFERENCED 1
114 #define DX_FLAG_DUP_REF 2
115 #define DX_FLAG_FIRST 4
116 #define DX_FLAG_LAST 8
118 #ifdef RESOURCE_TRACK
120 * This structure is used for keeping track of how much resources have
121 * been used for a particular pass of e2fsck.
123 struct resource_track {
124 struct timeval time_start;
125 struct timeval user_start;
126 struct timeval system_start;
134 #define E2F_OPT_READONLY 0x0001
135 #define E2F_OPT_PREEN 0x0002
136 #define E2F_OPT_YES 0x0004
137 #define E2F_OPT_NO 0x0008
138 #define E2F_OPT_TIME 0x0010
139 #define E2F_OPT_TIME2 0x0020
140 #define E2F_OPT_CHECKBLOCKS 0x0040
141 #define E2F_OPT_DEBUG 0x0080
142 #define E2F_OPT_FORCE 0x0100
143 #define E2F_OPT_WRITECHECK 0x0200
144 #define E2F_OPT_COMPRESS_DIRS 0x0400
149 #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
150 #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
151 #define E2F_FLAG_SIGNAL_MASK 0x0003
152 #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
154 #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
156 #define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
157 #define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
158 #define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
159 #define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
160 * specified by the user */
161 #define E2F_FLAG_RESTARTED 0x0100 /* E2fsck has been restarted */
164 * Defines for indicating the e2fsck pass number
171 #define E2F_PASS_1B 6
174 * Define the extended attribute refcount structure
176 typedef struct ea_refcount *ext2_refcount_t;
179 * This is the global e2fsck structure.
181 typedef struct e2fsck_struct *e2fsck_t;
183 struct e2fsck_struct {
185 const char *program_name;
186 char *filesystem_name;
188 int flags; /* E2fsck internal flags */
190 blk_t use_superblock; /* sb requested by user */
191 blk_t superblock; /* sb used to open fs */
192 int blocksize; /* blocksize */
193 blk_t num_blocks; /* Total number of blocks */
195 blkid_cache blkid; /* blkid cache */
200 unsigned long abort_code;
202 int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
205 ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
206 ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
207 ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
208 ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
209 ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
210 ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
212 ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
213 ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
214 ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
219 ext2_icount_t inode_count;
220 ext2_icount_t inode_link_info;
222 ext2_refcount_t refcount;
223 ext2_refcount_t refcount_extra;
226 * Array of flags indicating whether an inode bitmap, block
227 * bitmap, or inode table is invalid
229 int *invalid_inode_bitmap_flag;
230 int *invalid_block_bitmap_flag;
231 int *invalid_inode_table_flag;
232 int invalid_bitmaps; /* There are invalid bitmaps/itable */
240 * For pass1_check_directory and pass1_get_blocks
242 ext2_ino_t stashed_ino;
243 struct ext2_inode *stashed_inode;
246 * Location of the lost and found directory
248 ext2_ino_t lost_and_found;
249 int bad_lost_and_found;
252 * Directory information
256 struct dir_info *dir_info;
259 * Indexed directory information
261 int dx_dir_info_count;
262 int dx_dir_info_size;
263 struct dx_dir_info *dx_dir_info;
266 * Directories to hash
268 ext2_u32_list dirs_to_hash;
273 int process_inode_size;
274 int inode_buffer_blocks;
277 * ext3 journal support
279 io_channel journal_io;
282 #ifdef RESOURCE_TRACK
284 * For timing purposes
286 struct resource_track global_rtrack;
290 * How we display the progress update (for unix)
294 int progress_last_percent;
295 unsigned int progress_last_time;
298 int fs_directory_count;
299 int fs_regular_count;
300 int fs_blockdev_count;
301 int fs_chardev_count;
303 int fs_symlinks_count;
304 int fs_fast_symlinks_count;
307 int fs_badblocks_count;
308 int fs_sockets_count;
314 int fs_ext_attr_inodes;
315 int fs_ext_attr_blocks;
320 * For the use of callers of the e2fsck functions; not used by
321 * e2fsck functions themselves.
326 /* Used by the region allocation code */
327 typedef __u32 region_addr_t;
328 typedef struct region_struct *region_t;
331 #define strnlen(str, x) e2fsck_strnlen((str),(x))
332 extern int e2fsck_strnlen(const char * s, int count);
336 * Procedure declarations
339 extern void e2fsck_pass1(e2fsck_t ctx);
340 extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
341 extern void e2fsck_pass2(e2fsck_t ctx);
342 extern void e2fsck_pass3(e2fsck_t ctx);
343 extern void e2fsck_pass4(e2fsck_t ctx);
344 extern void e2fsck_pass5(e2fsck_t ctx);
347 extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
348 extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
349 extern void e2fsck_free_context(e2fsck_t ctx);
350 extern int e2fsck_run(e2fsck_t ctx);
354 extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
355 int replace_bad_blocks);
356 extern void test_disk(e2fsck_t ctx);
359 extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
360 extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ext2_ino_t ino);
361 extern void e2fsck_free_dir_info(e2fsck_t ctx);
362 extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
363 extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control);
366 extern void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks);
367 extern struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino);
368 extern void e2fsck_free_dx_dir_info(e2fsck_t ctx);
369 extern int e2fsck_get_num_dx_dirinfo(e2fsck_t ctx);
370 extern struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control);
373 extern errcode_t ea_refcount_create(int size, ext2_refcount_t *ret);
374 extern void ea_refcount_free(ext2_refcount_t refcount);
375 extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk,
377 extern errcode_t ea_refcount_increment(ext2_refcount_t refcount,
378 blk_t blk, int *ret);
379 extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount,
380 blk_t blk, int *ret);
381 extern errcode_t ea_refcount_store(ext2_refcount_t refcount,
382 blk_t blk, int count);
383 extern blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount);
384 extern void ea_refcount_intr_begin(ext2_refcount_t refcount);
385 extern blk_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret);
388 extern const char *ehandler_operation(const char *op);
389 extern void ehandler_init(io_channel channel);
392 extern int e2fsck_check_ext3_journal(e2fsck_t ctx);
393 extern int e2fsck_run_ext3_journal(e2fsck_t ctx);
394 extern void e2fsck_move_ext3_journal(e2fsck_t ctx);
397 extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool);
398 extern int e2fsck_pass1_check_device_inode(ext2_filsys fs,
399 struct ext2_inode *inode);
400 extern int e2fsck_pass1_check_symlink(ext2_filsys fs,
401 struct ext2_inode *inode, char *buf);
404 extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
405 ext2_ino_t ino, char *buf);
408 extern int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode);
409 extern errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
410 int num, int gauranteed_size);
411 extern ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix);
412 extern errcode_t e2fsck_adjust_inode_count(e2fsck_t ctx, ext2_ino_t ino,
417 extern region_t region_create(region_addr_t min, region_addr_t max);
418 extern void region_free(region_t region);
419 extern int region_allocate(region_t region, region_addr_t start, int n);
422 errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino);
423 void e2fsck_rehash_directories(e2fsck_t ctx);
426 void check_super_block(e2fsck_t ctx);
427 errcode_t e2fsck_get_device_size(e2fsck_t ctx);
430 void swap_filesys(e2fsck_t ctx);
433 extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
434 const char *description);
435 extern int ask(e2fsck_t ctx, const char * string, int def);
436 extern int ask_yn(const char * string, int def);
437 extern void fatal_error(e2fsck_t ctx, const char * fmt_string);
438 extern void e2fsck_read_bitmaps(e2fsck_t ctx);
439 extern void e2fsck_write_bitmaps(e2fsck_t ctx);
440 extern void preenhalt(e2fsck_t ctx);
441 extern char *string_copy(e2fsck_t ctx, const char *str, int len);
442 #ifdef RESOURCE_TRACK
443 extern void print_resource_track(const char *desc,
444 struct resource_track *track);
445 extern void init_resource_track(struct resource_track *track);
447 extern int inode_has_valid_blocks(struct ext2_inode *inode);
448 extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
449 struct ext2_inode * inode, const char * proc);
450 extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
451 struct ext2_inode * inode, const char * proc);
453 extern void mtrace_print(char *mesg);
455 extern blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs,
456 const char *name, io_manager manager);
457 extern int ext2_file_type(unsigned int mode);
460 extern void e2fsck_clear_progbar(e2fsck_t ctx);
461 extern int e2fsck_simple_progress(e2fsck_t ctx, char *label,
462 float percent, unsigned int dpynum);