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 */
161 * Defines for indicating the e2fsck pass number
168 #define E2F_PASS_1B 6
171 * Define the extended attribute refcount structure
173 typedef struct ea_refcount *ext2_refcount_t;
176 * This is the global e2fsck structure.
178 typedef struct e2fsck_struct *e2fsck_t;
180 struct e2fsck_struct {
182 const char *program_name;
183 const char *filesystem_name;
184 const char *device_name;
185 int flags; /* E2fsck internal flags */
187 blk_t use_superblock; /* sb requested by user */
188 blk_t superblock; /* sb used to open fs */
189 int blocksize; /* blocksize */
190 blk_t num_blocks; /* Total number of blocks */
195 unsigned long abort_code;
197 int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
200 ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
201 ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
202 ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
203 ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
204 ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
205 ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
207 ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
208 ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
209 ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
214 ext2_icount_t inode_count;
215 ext2_icount_t inode_link_info;
217 ext2_refcount_t refcount;
218 ext2_refcount_t refcount_extra;
221 * Array of flags indicating whether an inode bitmap, block
222 * bitmap, or inode table is invalid
224 int *invalid_inode_bitmap_flag;
225 int *invalid_block_bitmap_flag;
226 int *invalid_inode_table_flag;
227 int invalid_bitmaps; /* There are invalid bitmaps/itable */
235 * For pass1_check_directory and pass1_get_blocks
237 ext2_ino_t stashed_ino;
238 struct ext2_inode *stashed_inode;
241 * Location of the lost and found directory
243 ext2_ino_t lost_and_found;
244 int bad_lost_and_found;
247 * Directory information
251 struct dir_info *dir_info;
254 * Indexed directory information
256 int dx_dir_info_count;
257 int dx_dir_info_size;
258 struct dx_dir_info *dx_dir_info;
261 * Directories to hash
263 ext2_u32_list dirs_to_hash;
268 int process_inode_size;
269 int inode_buffer_blocks;
272 * ext3 journal support
274 io_channel journal_io;
275 const char *journal_name;
277 #ifdef RESOURCE_TRACK
279 * For timing purposes
281 struct resource_track global_rtrack;
285 * How we display the progress update (for unix)
289 int progress_last_percent;
290 unsigned int progress_last_time;
293 int fs_directory_count;
294 int fs_regular_count;
295 int fs_blockdev_count;
296 int fs_chardev_count;
298 int fs_symlinks_count;
299 int fs_fast_symlinks_count;
302 int fs_badblocks_count;
303 int fs_sockets_count;
309 int fs_ext_attr_inodes;
310 int fs_ext_attr_blocks;
315 * For the use of callers of the e2fsck functions; not used by
316 * e2fsck functions themselves.
321 /* Used by the region allocation code */
322 typedef __u32 region_addr_t;
323 typedef struct region_struct *region_t;
326 * Procedure declarations
329 extern void e2fsck_pass1(e2fsck_t ctx);
330 extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
331 extern void e2fsck_pass2(e2fsck_t ctx);
332 extern void e2fsck_pass3(e2fsck_t ctx);
333 extern void e2fsck_pass4(e2fsck_t ctx);
334 extern void e2fsck_pass5(e2fsck_t ctx);
337 extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
338 extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
339 extern void e2fsck_free_context(e2fsck_t ctx);
340 extern int e2fsck_run(e2fsck_t ctx);
344 extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
345 int replace_bad_blocks);
346 extern void test_disk(e2fsck_t ctx);
349 extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
350 extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ext2_ino_t ino);
351 extern void e2fsck_free_dir_info(e2fsck_t ctx);
352 extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
353 extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control);
356 extern void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks);
357 extern struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino);
358 extern void e2fsck_free_dx_dir_info(e2fsck_t ctx);
359 extern int e2fsck_get_num_dx_dirinfo(e2fsck_t ctx);
360 extern struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control);
363 extern errcode_t ea_refcount_create(int size, ext2_refcount_t *ret);
364 extern void ea_refcount_free(ext2_refcount_t refcount);
365 extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk,
367 extern errcode_t ea_refcount_increment(ext2_refcount_t refcount,
368 blk_t blk, int *ret);
369 extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount,
370 blk_t blk, int *ret);
371 extern errcode_t ea_refcount_store(ext2_refcount_t refcount,
372 blk_t blk, int count);
373 extern blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount);
374 extern void ea_refcount_intr_begin(ext2_refcount_t refcount);
375 extern blk_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret);
378 extern const char *ehandler_operation(const char *op);
379 extern void ehandler_init(io_channel channel);
382 extern int e2fsck_check_ext3_journal(e2fsck_t ctx);
383 extern int e2fsck_run_ext3_journal(e2fsck_t ctx);
384 extern void e2fsck_move_ext3_journal(e2fsck_t ctx);
387 extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool);
388 extern int e2fsck_pass1_check_device_inode(ext2_filsys fs,
389 struct ext2_inode *inode);
390 extern int e2fsck_pass1_check_symlink(ext2_filsys fs,
391 struct ext2_inode *inode, char *buf);
394 extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
395 ext2_ino_t ino, char *buf);
398 extern int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode);
399 extern errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
400 int num, int gauranteed_size);
401 extern ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix);
405 extern region_t region_create(region_addr_t min, region_addr_t max);
406 extern void region_free(region_t region);
407 extern int region_allocate(region_t region, region_addr_t start, int n);
410 errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino);
411 void e2fsck_rehash_directories(e2fsck_t ctx);
414 void check_super_block(e2fsck_t ctx);
415 errcode_t e2fsck_get_device_size(e2fsck_t ctx);
418 void swap_filesys(e2fsck_t ctx);
421 extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
422 const char *description);
423 extern int ask(e2fsck_t ctx, const char * string, int def);
424 extern int ask_yn(const char * string, int def);
425 extern void fatal_error(e2fsck_t ctx, const char * fmt_string);
426 extern void e2fsck_read_bitmaps(e2fsck_t ctx);
427 extern void e2fsck_write_bitmaps(e2fsck_t ctx);
428 extern void preenhalt(e2fsck_t ctx);
429 #ifdef RESOURCE_TRACK
430 extern void print_resource_track(const char *desc,
431 struct resource_track *track);
432 extern void init_resource_track(struct resource_track *track);
434 extern int inode_has_valid_blocks(struct ext2_inode *inode);
435 extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
436 struct ext2_inode * inode, const char * proc);
437 extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
438 struct ext2_inode * inode, const char * proc);
440 extern void mtrace_print(char *mesg);
442 extern blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs,
443 const char *name, io_manager manager);
444 extern int ext2_file_type(unsigned int mode);
447 extern void e2fsck_clear_progbar(e2fsck_t ctx);