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 struct dx_dirblock_info *dx_block; /* Array of size numblocks */
93 #define DX_DIRBLOCK_ROOT 1
94 #define DX_DIRBLOCK_LEAF 2
95 #define DX_DIRBLOCK_NODE 3
96 #define DX_DIRBLOCK_CORRUPT 4
97 #define DX_DIRBLOCK_CLEARED 8
99 struct dx_dirblock_info {
104 ext2_dirhash_t min_hash;
105 ext2_dirhash_t max_hash;
106 ext2_dirhash_t node_min_hash;
107 ext2_dirhash_t node_max_hash;
110 #define DX_FLAG_REFERENCED 1
111 #define DX_FLAG_DUP_REF 2
112 #define DX_FLAG_FIRST 4
113 #define DX_FLAG_LAST 8
115 #ifdef RESOURCE_TRACK
117 * This structure is used for keeping track of how much resources have
118 * been used for a particular pass of e2fsck.
120 struct resource_track {
121 struct timeval time_start;
122 struct timeval user_start;
123 struct timeval system_start;
131 #define E2F_OPT_READONLY 0x0001
132 #define E2F_OPT_PREEN 0x0002
133 #define E2F_OPT_YES 0x0004
134 #define E2F_OPT_NO 0x0008
135 #define E2F_OPT_TIME 0x0010
136 #define E2F_OPT_TIME2 0x0020
137 #define E2F_OPT_CHECKBLOCKS 0x0040
138 #define E2F_OPT_DEBUG 0x0080
139 #define E2F_OPT_FORCE 0x0100
140 #define E2F_OPT_WRITECHECK 0x0200
141 #define E2F_OPT_COMPRESS_DIRS 0x0400
146 #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
147 #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
148 #define E2F_FLAG_SIGNAL_MASK 0x0003
149 #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
151 #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
153 #define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
154 #define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
155 #define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
156 #define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
157 * specified by the user */
160 * Defines for indicating the e2fsck pass number
167 #define E2F_PASS_1B 6
170 * Define the extended attribute refcount structure
172 typedef struct ea_refcount *ext2_refcount_t;
175 * This is the global e2fsck structure.
177 typedef struct e2fsck_struct *e2fsck_t;
179 struct e2fsck_struct {
181 const char *program_name;
182 const char *filesystem_name;
183 const char *device_name;
184 int flags; /* E2fsck internal flags */
186 blk_t use_superblock; /* sb requested by user */
187 blk_t superblock; /* sb used to open fs */
188 int blocksize; /* blocksize */
189 blk_t num_blocks; /* Total number of blocks */
194 unsigned long abort_code;
196 int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
199 ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
200 ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
201 ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
202 ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
203 ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
204 ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
206 ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
207 ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
208 ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
213 ext2_icount_t inode_count;
214 ext2_icount_t inode_link_info;
216 ext2_refcount_t refcount;
217 ext2_refcount_t refcount_extra;
220 * Array of flags indicating whether an inode bitmap, block
221 * bitmap, or inode table is invalid
223 int *invalid_inode_bitmap_flag;
224 int *invalid_block_bitmap_flag;
225 int *invalid_inode_table_flag;
226 int invalid_bitmaps; /* There are invalid bitmaps/itable */
234 * For pass1_check_directory and pass1_get_blocks
236 ext2_ino_t stashed_ino;
237 struct ext2_inode *stashed_inode;
240 * Location of the lost and found directory
242 ext2_ino_t lost_and_found;
243 int bad_lost_and_found;
246 * Directory information
250 struct dir_info *dir_info;
253 * Indexed directory information
255 int dx_dir_info_count;
256 int dx_dir_info_size;
257 struct dx_dir_info *dx_dir_info;
260 * Directories to hash
262 ext2_u32_list dirs_to_hash;
267 int process_inode_size;
268 int inode_buffer_blocks;
271 * ext3 journal support
273 io_channel journal_io;
274 const char *journal_name;
276 #ifdef RESOURCE_TRACK
278 * For timing purposes
280 struct resource_track global_rtrack;
284 * How we display the progress update (for unix)
288 int progress_last_percent;
289 unsigned int progress_last_time;
292 int fs_directory_count;
293 int fs_regular_count;
294 int fs_blockdev_count;
295 int fs_chardev_count;
297 int fs_symlinks_count;
298 int fs_fast_symlinks_count;
301 int fs_badblocks_count;
302 int fs_sockets_count;
308 int fs_ext_attr_inodes;
309 int fs_ext_attr_blocks;
314 * For the use of callers of the e2fsck functions; not used by
315 * e2fsck functions themselves.
320 /* Used by the region allocation code */
321 typedef __u32 region_addr_t;
322 typedef struct region_struct *region_t;
325 * Procedure declarations
328 extern void e2fsck_pass1(e2fsck_t ctx);
329 extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
330 extern void e2fsck_pass2(e2fsck_t ctx);
331 extern void e2fsck_pass3(e2fsck_t ctx);
332 extern void e2fsck_pass4(e2fsck_t ctx);
333 extern void e2fsck_pass5(e2fsck_t ctx);
336 extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
337 extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
338 extern void e2fsck_free_context(e2fsck_t ctx);
339 extern int e2fsck_run(e2fsck_t ctx);
343 extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
344 int replace_bad_blocks);
345 extern void test_disk(e2fsck_t ctx);
348 extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
349 extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ext2_ino_t ino);
350 extern void e2fsck_free_dir_info(e2fsck_t ctx);
351 extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
352 extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control);
355 extern void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks);
356 extern struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino);
357 extern void e2fsck_free_dx_dir_info(e2fsck_t ctx);
358 extern int e2fsck_get_num_dx_dirinfo(e2fsck_t ctx);
359 extern struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control);
362 extern errcode_t ea_refcount_create(int size, ext2_refcount_t *ret);
363 extern void ea_refcount_free(ext2_refcount_t refcount);
364 extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk,
366 extern errcode_t ea_refcount_increment(ext2_refcount_t refcount,
367 blk_t blk, int *ret);
368 extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount,
369 blk_t blk, int *ret);
370 extern errcode_t ea_refcount_store(ext2_refcount_t refcount,
371 blk_t blk, int count);
372 extern blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount);
373 extern void ea_refcount_intr_begin(ext2_refcount_t refcount);
374 extern blk_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret);
377 extern const char *ehandler_operation(const char *op);
378 extern void ehandler_init(io_channel channel);
381 extern int e2fsck_check_ext3_journal(e2fsck_t ctx);
382 extern int e2fsck_run_ext3_journal(e2fsck_t ctx);
383 extern void e2fsck_move_ext3_journal(e2fsck_t ctx);
386 extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool);
387 extern int e2fsck_pass1_check_device_inode(ext2_filsys fs,
388 struct ext2_inode *inode);
389 extern int e2fsck_pass1_check_symlink(ext2_filsys fs,
390 struct ext2_inode *inode, char *buf);
393 extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
394 ext2_ino_t ino, char *buf);
397 extern int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode);
398 extern errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
399 int num, int gauranteed_size);
400 extern ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix);
404 extern region_t region_create(region_addr_t min, region_addr_t max);
405 extern void region_free(region_t region);
406 extern int region_allocate(region_t region, region_addr_t start, int n);
409 errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino);
410 void e2fsck_rehash_directories(e2fsck_t ctx);
413 void check_super_block(e2fsck_t ctx);
414 errcode_t e2fsck_get_device_size(e2fsck_t ctx);
417 void swap_filesys(e2fsck_t ctx);
420 extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
421 const char *description);
422 extern int ask(e2fsck_t ctx, const char * string, int def);
423 extern int ask_yn(const char * string, int def);
424 extern void fatal_error(e2fsck_t ctx, const char * fmt_string);
425 extern void e2fsck_read_bitmaps(e2fsck_t ctx);
426 extern void e2fsck_write_bitmaps(e2fsck_t ctx);
427 extern void preenhalt(e2fsck_t ctx);
428 #ifdef RESOURCE_TRACK
429 extern void print_resource_track(const char *desc,
430 struct resource_track *track);
431 extern void init_resource_track(struct resource_track *track);
433 extern int inode_has_valid_blocks(struct ext2_inode *inode);
434 extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
435 struct ext2_inode * inode, const char * proc);
436 extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
437 struct ext2_inode * inode, const char * proc);
439 extern void mtrace_print(char *mesg);
441 extern blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs,
442 const char *name, io_manager manager);
443 extern int ext2_file_type(unsigned int mode);
446 extern void e2fsck_clear_progbar(e2fsck_t ctx);