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libext2fs: fix potential divide by zero bug caused by a lxcfs bug
[thirdparty/e2fsprogs.git] / e2fsck / e2fsck.h
CommitLineData
3839e657
TT		 1/*
2 * e2fsck.h
efc6f628 3 *
3839e657
TT		 4 * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
5 * redistributed under the terms of the GNU Public License.
efc6f628 6 *
3839e657
TT		 7 */
8
56566129
AD		 9#ifndef _E2FSCK_H
10#define _E2FSCK_H
11
3839e657
TT		 12#include <stdio.h>
13#include <string.h>
4c77fe50 14#ifdef HAVE_UNISTD_H
3839e657 15#include <unistd.h>
4c77fe50 16#endif
3839e657 17#include <stdlib.h>
54be2ccc 18#include <time.h>
b2da22d1 19#ifdef HAVE_SYS_TYPES_H
3839e657 20#include <sys/types.h>
b2da22d1
TT		 21#endif
22#ifdef HAVE_SYS_TIME_H
3839e657 23#include <sys/time.h>
b2da22d1 24#endif
08b21301
TT		 25#ifdef HAVE_SETJMP_H
26#include <setjmp.h>
27#endif
3839e657 28
54dc7ca2
TT		 29#if EXT2_FLAT_INCLUDES
30#include "ext2_fs.h"
31#include "ext2fs.h"
f364093b 32#include "blkid.h"
54dc7ca2 33#else
54c637d4 34#include "ext2fs/ext2_fs.h"
3839e657 35#include "ext2fs/ext2fs.h"
f364093b 36#include "blkid/blkid.h"
54dc7ca2
TT		 37#endif
38
1dc16b0b
TT		 39#include "support/profile.h"
40#include "support/prof_err.h"
1017f651 41
0c4a0726
TT		 42#ifdef ENABLE_NLS
43#include <libintl.h>
44#include <locale.h>
45#define _(a) (gettext (a))
46#ifdef gettext_noop
47#define N_(a) gettext_noop (a)
48#else
49#define N_(a) (a)
50#endif
113e405b 51#define P_(singular, plural, n) (ngettext (singular, plural, n))
a04eba3f 52#ifndef NLS_CAT_NAME
0c4a0726 53#define NLS_CAT_NAME "e2fsprogs"
a04eba3f
TT		 54#endif
55#ifndef LOCALEDIR
0c4a0726 56#define LOCALEDIR "/usr/share/locale"
a04eba3f 57#endif
0c4a0726
TT		 58#else
59#define _(a) (a)
60#define N_(a) a
113e405b 61#define P_(singular, plural, n) ((n) == 1 ? (singular) : (plural))
0c4a0726
TT		 62#endif
63
b0e91c89
TT		 64#ifdef __GNUC__
65#define E2FSCK_ATTR(x) __attribute__(x)
66#else
67#define E2FSCK_ATTR(x)
68#endif
69
f34af41b 70#include "support/quotaio.h"
d55f8b8c
TT		 71#if __GNUC_PREREQ (4, 6)
72#pragma GCC diagnostic push
73#pragma GCC diagnostic ignored "-Wunused-function"
74#endif
c8a097c2 75#include "ext2fs/fast_commit.h"
d55f8b8c
TT		 76#if __GNUC_PREREQ (4, 6)
77#pragma GCC diagnostic pop
78#endif
624e4a64 79
3839e657
TT		 80/*
81 * Exit codes used by fsck-type programs
82 */
83#define FSCK_OK 0 /* No errors */
84#define FSCK_NONDESTRUCT 1 /* File system errors corrected */
85#define FSCK_REBOOT 2 /* System should be rebooted */
86#define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
87#define FSCK_ERROR 8 /* Operational error */
88#define FSCK_USAGE 16 /* Usage or syntax error */
4cae0452 89#define FSCK_CANCELED 32 /* Aborted with a signal or ^C */
3839e657
TT		 90#define FSCK_LIBRARY 128 /* Shared library error */
91
f3db3566
TT		 92/*
93 * The last ext2fs revision level that this version of e2fsck is able to
94 * support
95 */
1e3472c5 96#define E2FSCK_CURRENT_REV 1
f3db3566 97
3839e657
TT		 98/*
99 * The directory information structure; stores directory information
100 * collected in earlier passes, to avoid disk i/o in fetching the
21c84b71 101 * directory information.
3839e657
TT		 102 */
103struct dir_info {
86c627ec
TT		 104 ext2_ino_t ino; /* Inode number */
105 ext2_ino_t dotdot; /* Parent according to '..' */
106 ext2_ino_t parent; /* Parent according to treewalk */
3839e657
TT		 107};
108
8fdc9985
TT		 109
110/*
111 * The indexed directory information structure; stores information for
112 * directories which contain a hash tree index.
113 */
114struct dx_dir_info {
abeb84e3
AD		 115 ext2_ino_t ino; /* Inode number */
116 short depth; /* depth of tree (15 bits) */
117 __u8 hashversion;
118 __u8 casefolded_hash:1;
119 blk_t numblocks; /* number of blocks in dir */
120 struct dx_dirblock_info *dx_block; /* Array of size numblocks */
8fdc9985
TT		 121};
122
123#define DX_DIRBLOCK_ROOT 1
124#define DX_DIRBLOCK_LEAF 2
125#define DX_DIRBLOCK_NODE 3
126#define DX_DIRBLOCK_CORRUPT 4
127#define DX_DIRBLOCK_CLEARED 8
128
129struct dx_dirblock_info {
130 int type;
8fdc9985 131 int flags;
abeb84e3 132 blk64_t phys;
4dbfd79d 133 blk64_t parent;
ae9efd05 134 blk64_t previous;
efc6f628 135 ext2_dirhash_t min_hash;
8fdc9985 136 ext2_dirhash_t max_hash;
efc6f628 137 ext2_dirhash_t node_min_hash;
8fdc9985
TT		 138 ext2_dirhash_t node_max_hash;
139};
140
141#define DX_FLAG_REFERENCED 1
142#define DX_FLAG_DUP_REF 2
143#define DX_FLAG_FIRST 4
144#define DX_FLAG_LAST 8
145
2ba05753
EB		 146struct encrypted_file_info;
147
d1154eb4
TT		 148#define RESOURCE_TRACK
149
8bf191e8 150#ifdef RESOURCE_TRACK
3839e657
TT		 151/*
152 * This structure is used for keeping track of how much resources have
153 * been used for a particular pass of e2fsck.
154 */
155struct resource_track {
156 struct timeval time_start;
157 struct timeval user_start;
158 struct timeval system_start;
159 void *brk_start;
6d96b00d
TT		 160 unsigned long long bytes_read;
161 unsigned long long bytes_written;
3839e657 162};
8bf191e8 163#endif
3839e657
TT		 164
165/*
1b6bf175 166 * E2fsck options
3839e657 167 */
1b6bf175
TT		 168#define E2F_OPT_READONLY 0x0001
169#define E2F_OPT_PREEN 0x0002
170#define E2F_OPT_YES 0x0004
171#define E2F_OPT_NO 0x0008
172#define E2F_OPT_TIME 0x0010
173#define E2F_OPT_TIME2 0x0020
174#define E2F_OPT_CHECKBLOCKS 0x0040
175#define E2F_OPT_DEBUG 0x0080
d37066a9 176#define E2F_OPT_FORCE 0x0100
3ed57c27 177#define E2F_OPT_WRITECHECK 0x0200
850d05e9 178#define E2F_OPT_COMPRESS_DIRS 0x0400
63b5e354 179#define E2F_OPT_FRAGCHECK 0x0800
71873b17 180#define E2F_OPT_JOURNAL_ONLY 0x1000 /* only replay the journal */
25623fea 181#define E2F_OPT_DISCARD 0x2000
e228d700
DW		 182#define E2F_OPT_CONVERT_BMAP 0x4000 /* convert blockmap to extent */
183#define E2F_OPT_FIXES_ONLY 0x8000 /* skip all optimizations */
0b76d709 184#define E2F_OPT_NOOPT_EXTENTS 0x10000 /* don't optimize extents */
6304d212 185#define E2F_OPT_ICOUNT_FULLMAP 0x20000 /* use an array for inode counts */
91327df4 186#define E2F_OPT_UNSHARE_BLOCKS 0x40000
b9e66a18 187#define E2F_OPT_CLEAR_UNINIT 0x80000 /* Hack to clear the uninit bit */
1e6a3a32 188#define E2F_OPT_CHECK_ENCODING 0x100000 /* Force verification of encoded filenames */
3839e657 189
08b21301
TT		 190/*
191 * E2fsck flags
192 */
193#define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
194#define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
db3d8718 195#define E2F_FLAG_SIGNAL_MASK (E2F_FLAG_ABORT | E2F_FLAG_CANCEL)
08b21301 196#define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
db3d8718 197#define E2F_FLAG_RUN_RETURN (E2F_FLAG_SIGNAL_MASK | E2F_FLAG_RESTART)
6267ee49 198#define E2F_FLAG_RESTART_LATER 0x0008 /* Restart after all iterations done */
08b21301
TT		 199#define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
200
5596defa
TT		 201#define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
202#define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
424cd2be 203#define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
efc6f628 204#define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
ae6cdcf7 205 * specified by the user */
6c7d61da 206#define E2F_FLAG_RESTARTED 0x0200 /* E2fsck has been restarted */
c3ffaf83 207#define E2F_FLAG_RESIZE_INODE 0x0400 /* Request to recreate resize inode */
d2af1bdd 208#define E2F_FLAG_GOT_DEVSIZE 0x0800 /* Device size has been fetched */
79cc3362 209#define E2F_FLAG_EXITING 0x1000 /* E2fsck exiting due to errors */
177839e2 210#define E2F_FLAG_TIME_INSANE 0x2000 /* Time is insane */
7664c753 211#define E2F_FLAG_PROBLEMS_FIXED 0x4000 /* At least one problem was fixed */
e228d700 212#define E2F_FLAG_ALLOC_OK 0x8000 /* Can we allocate blocks? */
177839e2 213
7664c753 214#define E2F_RESET_FLAGS (E2F_FLAG_TIME_INSANE | E2F_FLAG_PROBLEMS_FIXED)
5596defa 215
08b21301
TT		 216/*
217 * Defines for indicating the e2fsck pass number
218 */
219#define E2F_PASS_1 1
220#define E2F_PASS_2 2
221#define E2F_PASS_3 3
222#define E2F_PASS_4 4
223#define E2F_PASS_5 5
224#define E2F_PASS_1B 6
225
342d847d
TT		 226/*
227 * Define the extended attribute refcount structure
228 */
229typedef struct ea_refcount *ext2_refcount_t;
230
1b6bf175
TT		 231/*
232 * This is the global e2fsck structure.
233 */
08b21301
TT		 234typedef struct e2fsck_struct *e2fsck_t;
235
7464397a 236#define MAX_EXTENT_DEPTH_COUNT 8
8da6d1a1 237
9dc54e46 238/*
20654197 239 * This structure is used to manage the list of extents in a file. Placing
9dc54e46
HS		 240 * it here since this is used by fast_commit.h.
241 */
242struct extent_list {
243 blk64_t blocks_freed;
244 struct ext2fs_extent *extents;
245 unsigned int count;
246 unsigned int size;
247 unsigned int ext_read;
248 errcode_t retval;
249 ext2_ino_t ino;
250};
c8a097c2
HS		 251
252/* State structure for fast commit replay */
253struct e2fsck_fc_replay_state {
254 struct extent_list fc_extent_list;
255 int fc_replay_num_tags;
256 int fc_replay_expected_off;
f158f896 257 enum passtype fc_current_pass;
c8a097c2 258 int fc_cur_tag;
f158f896 259 unsigned int fc_crc;
c8a097c2
HS		 260 __u16 fc_super_state;
261};
262
1b6bf175
TT		 263struct e2fsck_struct {
264 ext2_filsys fs;
265 const char *program_name;
f364093b
TT		 266 char *filesystem_name;
267 char *device_name;
2e8ca9a2 268 char *io_options;
b0e91c89
TT		 269 FILE *logf;
270 char *log_fn;
d2dd606f
TT		 271 FILE *problem_logf;
272 char *problem_log_fn;
08b21301 273 int flags; /* E2fsck internal flags */
1b6bf175 274 int options;
382ed4a1 275 unsigned blocksize; /* blocksize */
6dc64392
VAH		 276 blk64_t use_superblock; /* sb requested by user */
277 blk64_t superblock; /* sb used to open fs */
59119646 278 blk64_t num_blocks; /* Total number of blocks */
382ed4a1
AD		 279 blk64_t free_blocks;
280 ext2_ino_t free_inodes;
ee895139 281 int mount_flags;
0d19ccbd 282 int openfs_flags;
f364093b 283 blkid_cache blkid; /* blkid cache */
1b6bf175 284
08b21301
TT		 285#ifdef HAVE_SETJMP_H
286 jmp_buf abort_loc;
287#endif
f8188fff 288 unsigned long abort_code;
08b21301 289
a02ce9df
TT		 290 int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
291 unsigned long max);
08b21301 292
1b6bf175
TT		 293 ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
294 ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
295 ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
296 ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
aa4115a4
TT		 297 ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
298 ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
06b83bbd 299 ext2fs_inode_bitmap inode_casefold_map; /* Inodes which are casefolded */
1b6bf175
TT		 300
301 ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
302 ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
342d847d 303 ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
1b6bf175
TT		 304
305 /*
306 * Inode count arrays
307 */
308 ext2_icount_t inode_count;
309 ext2_icount_t inode_link_info;
310
342d847d
TT		 311 ext2_refcount_t refcount;
312 ext2_refcount_t refcount_extra;
313
b0f457bd 314 /*
0b4ffc27 315 * Quota blocks and inodes to be charged for each ea block.
b0f457bd 316 */
0b4ffc27
TE		 317 ext2_refcount_t ea_block_quota_blocks;
318 ext2_refcount_t ea_block_quota_inodes;
b0f457bd 319
5c5685d1
TE		 320 /*
321 * ea_inode references from attr entries.
322 */
323 ext2_refcount_t ea_inode_refs;
324
1b6bf175
TT		 325 /*
326 * Array of flags indicating whether an inode bitmap, block
327 * bitmap, or inode table is invalid
328 */
329 int *invalid_inode_bitmap_flag;
330 int *invalid_block_bitmap_flag;
331 int *invalid_inode_table_flag;
332 int invalid_bitmaps; /* There are invalid bitmaps/itable */
333
08b21301
TT		 334 /*
335 * Block buffer
336 */
337 char *block_buf;
338
1b6bf175
TT		 339 /*
340 * For pass1_check_directory and pass1_get_blocks
341 */
86c627ec 342 ext2_ino_t stashed_ino;
1b6bf175
TT		 343 struct ext2_inode *stashed_inode;
344
850d05e9
TT		 345 /*
346 * Location of the lost and found directory
347 */
348 ext2_ino_t lost_and_found;
349 int bad_lost_and_found;
efc6f628 350
08b21301
TT		 351 /*
352 * Directory information
353 */
28db82a8 354 struct dir_info_db *dir_info;
08b21301 355
8fdc9985
TT		 356 /*
357 * Indexed directory information
358 */
74fbba1f
AD		 359 ext2_ino_t dx_dir_info_count;
360 ext2_ino_t dx_dir_info_size;
361 struct dx_dir_info *dx_dir_info;
8fdc9985 362
b7a00563
TT		 363 /*
364 * Directories to hash
365 */
366 ext2_u32_list dirs_to_hash;
367
2ba05753
EB		 368 /*
369 * Encrypted file information
370 */
371 struct encrypted_file_info *encrypted_files;
372
1b6bf175
TT		 373 /*
374 * Tuning parameters
375 */
376 int process_inode_size;
377 int inode_buffer_blocks;
7dca4c88 378 unsigned int htree_slack_percentage;
1b6bf175 379
adee8d75
TT		 380 /*
381 * ext3 journal support
382 */
383 io_channel journal_io;
f364093b 384 char *journal_name;
adee8d75 385
624e4a64
AK		 386 /*
387 * Ext4 quota support
388 */
389 quota_ctx_t qctx;
8bf191e8 390#ifdef RESOURCE_TRACK
1b6bf175
TT		 391 /*
392 * For timing purposes
393 */
394 struct resource_track global_rtrack;
8bf191e8 395#endif
1b6bf175 396
efac9a1b
TT		 397 /*
398 * How we display the progress update (for unix)
399 */
400 int progress_fd;
401 int progress_pos;
5596defa 402 int progress_last_percent;
06012323 403 unsigned int progress_last_time;
54a31a3b
TT		 404 int interactive; /* Are we connected directly to a tty? */
405 char start_meta[2], stop_meta[2];
efc6f628 406
1b6bf175 407 /* File counts */
d0ff90d5
ES		 408 __u32 fs_directory_count;
409 __u32 fs_regular_count;
410 __u32 fs_blockdev_count;
411 __u32 fs_chardev_count;
412 __u32 fs_links_count;
413 __u32 fs_symlinks_count;
414 __u32 fs_fast_symlinks_count;
415 __u32 fs_fifo_count;
416 __u32 fs_total_count;
417 __u32 fs_badblocks_count;
418 __u32 fs_sockets_count;
419 __u32 fs_ind_count;
420 __u32 fs_dind_count;
421 __u32 fs_tind_count;
422 __u32 fs_fragmented;
ce44d8ca 423 __u32 fs_fragmented_dir;
d0ff90d5 424 __u32 large_files;
f15b1aaf 425 __u32 large_dirs;
d0ff90d5
ES		 426 __u32 fs_ext_attr_inodes;
427 __u32 fs_ext_attr_blocks;
8da6d1a1 428 __u32 extent_depth_count[MAX_EXTENT_DEPTH_COUNT];
4313932c 429
9f0288d3 430 /* misc fields */
1f3ad14a 431 time_t now;
60702c26 432 time_t time_fudge; /* For working around buggy init scripts */
0684a4f3 433 int ext_attr_ver;
1017f651 434 profile_t profile;
9f0288d3 435 int blocks_per_page;
61421ee5 436 ext2_u32_list casefolded_dirs;
1017f651 437
b729b7df
DW		 438 /* Reserve blocks for root and l+f re-creation */
439 blk64_t root_repair_block, lnf_repair_block;
440
4313932c
TT		 441 /*
442 * For the use of callers of the e2fsck functions; not used by
443 * e2fsck functions themselves.
444 */
445 void *priv_data;
35c8faaf 446 ext2fs_block_bitmap block_metadata_map; /* Metadata blocks */
a5abfe03
DW		 447
448 /* How much are we allowed to readahead? */
449 unsigned long long readahead_kb;
e228d700
DW		 450
451 /*
452 * Inodes to rebuild extent trees
453 */
454 ext2fs_inode_bitmap inodes_to_rebuild;
ce9b74ab
DW		 455
456 /* Undo file */
457 char *undo_file;
c8a097c2
HS		 458
459 /* Fast commit replay state */
460 struct e2fsck_fc_replay_state fc_replay_state;
e228d700
DW		 461};
462
463/* Data structures to evaluate whether an extent tree needs rebuilding. */
464struct extent_tree_level {
465 unsigned int num_extents;
466 unsigned int max_extents;
467};
468
469struct extent_tree_info {
470 ext2_ino_t ino;
471 int force_rebuild;
472 struct extent_tree_level ext_info[MAX_EXTENT_DEPTH_COUNT];
1b6bf175 473};
f3db3566 474
55fd07ed 475/* Used by the region allocation code */
79362360 476typedef __u64 region_addr_t;
55fd07ed 477typedef struct region_struct *region_t;
1e3472c5 478
f364093b
TT		 479#ifndef HAVE_STRNLEN
480#define strnlen(str, x) e2fsck_strnlen((str),(x))
481extern int e2fsck_strnlen(const char * s, int count);
482#endif
483
3839e657
TT		 484/*
485 * Procedure declarations
486 */
487
08b21301
TT		 488extern void e2fsck_pass1(e2fsck_t ctx);
489extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
490extern void e2fsck_pass2(e2fsck_t ctx);
491extern void e2fsck_pass3(e2fsck_t ctx);
492extern void e2fsck_pass4(e2fsck_t ctx);
493extern void e2fsck_pass5(e2fsck_t ctx);
1b6bf175
TT		 494
495/* e2fsck.c */
08b21301
TT		 496extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
497extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
498extern void e2fsck_free_context(e2fsck_t ctx);
499extern int e2fsck_run(e2fsck_t ctx);
500
3839e657
TT		 501
502/* badblock.c */
1b6bf175 503extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
3839e657 504 int replace_bad_blocks);
3839e657
TT		 505
506/* dirinfo.c */
86c627ec 507extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
08b21301 508extern void e2fsck_free_dir_info(e2fsck_t ctx);
f8188fff 509extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
28db82a8 510extern struct dir_info_iter *e2fsck_dir_info_iter_begin(e2fsck_t ctx);
efc6f628 511extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx,
28db82a8
TT		 512 struct dir_info_iter *);
513extern void e2fsck_dir_info_iter_end(e2fsck_t ctx, struct dir_info_iter *);
efc6f628 514extern int e2fsck_dir_info_set_parent(e2fsck_t ctx, ext2_ino_t ino,
28db82a8 515 ext2_ino_t parent);
efc6f628 516extern int e2fsck_dir_info_set_dotdot(e2fsck_t ctx, ext2_ino_t ino,
28db82a8 517 ext2_ino_t dotdot);
efc6f628 518extern int e2fsck_dir_info_get_parent(e2fsck_t ctx, ext2_ino_t ino,
28db82a8 519 ext2_ino_t *parent);
efc6f628 520extern int e2fsck_dir_info_get_dotdot(e2fsck_t ctx, ext2_ino_t ino,
28db82a8 521 ext2_ino_t *dotdot);
3839e657 522
8fdc9985 523/* dx_dirinfo.c */
28b44ef0
GKB		 524extern void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino,
525 struct ext2_inode *inode, int num_blocks);
8fdc9985
TT		 526extern struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino);
527extern void e2fsck_free_dx_dir_info(e2fsck_t ctx);
382ed4a1
AD		 528extern ext2_ino_t e2fsck_get_num_dx_dirinfo(e2fsck_t ctx);
529extern struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx,
530 ext2_ino_t *control);
8fdc9985 531
342d847d 532/* ea_refcount.c */
e8b3cc90
TE		 533typedef __u64 ea_key_t;
534typedef __u64 ea_value_t;
535
536extern errcode_t ea_refcount_create(size_t size, ext2_refcount_t *ret);
342d847d 537extern void ea_refcount_free(ext2_refcount_t refcount);
e8b3cc90
TE		 538extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, ea_key_t ea_key,
539 ea_value_t *ret);
342d847d 540extern errcode_t ea_refcount_increment(ext2_refcount_t refcount,
e8b3cc90 541 ea_key_t ea_key, ea_value_t *ret);
342d847d 542extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount,
e8b3cc90
TE		 543 ea_key_t ea_key, ea_value_t *ret);
544extern errcode_t ea_refcount_store(ext2_refcount_t refcount, ea_key_t ea_key,
545 ea_value_t count);
546extern size_t ext2fs_get_refcount_size(ext2_refcount_t refcount);
342d847d 547extern void ea_refcount_intr_begin(ext2_refcount_t refcount);
e8b3cc90
TE		 548extern ea_key_t ea_refcount_intr_next(ext2_refcount_t refcount,
549 ea_value_t *ret);
342d847d 550
3839e657
TT		 551/* ehandler.c */
552extern const char *ehandler_operation(const char *op);
553extern void ehandler_init(io_channel channel);
554
2ba05753
EB		 555/* encrypted_files.c */
556
e228d700 557struct problem_context;
2ba05753
EB		 558int add_encrypted_file(e2fsck_t ctx, struct problem_context *pctx);
559
560#define NO_ENCRYPTION_POLICY ((__u32)-1)
561#define CORRUPT_ENCRYPTION_POLICY ((__u32)-2)
562#define UNRECOGNIZED_ENCRYPTION_POLICY ((__u32)-3)
563__u32 find_encryption_policy(e2fsck_t ctx, ext2_ino_t ino);
564
565void destroy_encryption_policy_map(e2fsck_t ctx);
566void destroy_encrypted_file_info(e2fsck_t ctx);
567
568/* extents.c */
e228d700
DW		 569errcode_t e2fsck_rebuild_extents_later(e2fsck_t ctx, ext2_ino_t ino);
570int e2fsck_ino_will_be_rebuilt(e2fsck_t ctx, ext2_ino_t ino);
571void e2fsck_pass1e(e2fsck_t ctx);
572errcode_t e2fsck_check_rebuild_extents(e2fsck_t ctx, ext2_ino_t ino,
573 struct ext2_inode *inode,
574 struct problem_context *pctx);
575errcode_t e2fsck_should_rebuild_extents(e2fsck_t ctx,
576 struct problem_context *pctx,
577 struct extent_tree_info *eti,
578 struct ext2_extent_info *info);
9dc54e46
HS		 579errcode_t e2fsck_read_extents(e2fsck_t ctx, struct extent_list *extents);
580errcode_t e2fsck_rewrite_extent_tree(e2fsck_t ctx,
581 struct extent_list *extents);
e228d700 582
17390c04 583/* journal.c */
974d57d3
TT		 584extern errcode_t e2fsck_check_ext3_journal(e2fsck_t ctx);
585extern errcode_t e2fsck_run_ext3_journal(e2fsck_t ctx);
773fd8a1 586extern void e2fsck_move_ext3_journal(e2fsck_t ctx);
b1c52b26 587extern int e2fsck_fix_ext3_journal_hint(e2fsck_t ctx);
17390c04 588
b0e91c89
TT		 589/* logfile.c */
590extern void set_up_logging(e2fsck_t ctx);
591
624e4a64
AK		 592/* quota.c */
593extern void e2fsck_hide_quota(e2fsck_t ctx);
d202f46d 594extern void e2fsck_validate_quota_inodes(e2fsck_t ctx);
624e4a64 595
e72a9ba3 596/* pass1.c */
749f0712
TT		 597extern errcode_t e2fsck_setup_icount(e2fsck_t ctx, const char *icount_name,
598 int flags, ext2_icount_t hint,
599 ext2_icount_t *ret);
2d2abcc6 600extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts);
0684a4f3
TT		 601extern int e2fsck_pass1_check_device_inode(ext2_filsys fs,
602 struct ext2_inode *inode);
7cadc577 603extern int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
bcf9c5d4 604 struct ext2_inode *inode, char *buf);
e3df15ab
TT		 605extern void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
606 struct ext2_inode *inode, int restart_flag,
607 const char *source);
b4a40883 608extern void e2fsck_intercept_block_allocations(e2fsck_t ctx);
e72a9ba3
TT		 609
610/* pass2.c */
bcf9c5d4
TT		 611extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
612 ext2_ino_t ino, char *buf);
e72a9ba3
TT		 613
614/* pass3.c */
86c627ec 615extern int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode);
b7a00563
TT		 616extern errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
617 int num, int gauranteed_size);
850d05e9 618extern ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix);
efc6f628 619extern errcode_t e2fsck_adjust_inode_count(e2fsck_t ctx, ext2_ino_t ino,
b0700a1b 620 int adj);
b7a00563 621
79614b27
DW		 622/* readahead.c */
623#define E2FSCK_READA_SUPER (0x01)
624#define E2FSCK_READA_GDT (0x02)
625#define E2FSCK_READA_BBITMAP (0x04)
626#define E2FSCK_READA_IBITMAP (0x08)
627#define E2FSCK_READA_ITABLE (0x10)
628#define E2FSCK_READA_ALL_FLAGS (0x1F)
629errcode_t e2fsck_readahead(ext2_filsys fs, int flags, dgrp_t start,
630 dgrp_t ngroups);
631#define E2FSCK_RA_DBLIST_IGNORE_BLOCKCNT (0x01)
632#define E2FSCK_RA_DBLIST_ALL_FLAGS (0x01)
633errcode_t e2fsck_readahead_dblist(ext2_filsys fs, int flags,
634 ext2_dblist dblist,
635 unsigned long long start,
636 unsigned long long count);
637int e2fsck_can_readahead(ext2_filsys fs);
638unsigned long long e2fsck_guess_readahead(ext2_filsys fs);
e72a9ba3 639
55fd07ed
TT		 640/* region.c */
641extern region_t region_create(region_addr_t min, region_addr_t max);
642extern void region_free(region_t region);
643extern int region_allocate(region_t region, region_addr_t start, int n);
644
b7a00563 645/* rehash.c */
07307114
DW		 646void e2fsck_rehash_dir_later(e2fsck_t ctx, ext2_ino_t ino);
647int e2fsck_dir_will_be_rehashed(e2fsck_t ctx, ext2_ino_t ino);
e228d700
DW		 648errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino,
649 struct problem_context *pctx);
b7a00563
TT		 650void e2fsck_rehash_directories(e2fsck_t ctx);
651
9b3018a8
TT		 652/* sigcatcher.c */
653void sigcatcher_setup(void);
654
1b6bf175
TT		 655/* super.c */
656void check_super_block(e2fsck_t ctx);
0c37f456 657int check_backup_super_block(e2fsck_t ctx);
69d0edfd 658void check_resize_inode(e2fsck_t ctx);
d0c52ffb 659int check_init_orphan_file(e2fsck_t ctx);
1b6bf175 660
3839e657 661/* util.c */
74fbba1f 662extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned long size,
f8188fff 663 const char *description);
1b6bf175 664extern int ask(e2fsck_t ctx, const char * string, int def);
b0e91c89 665extern int ask_yn(e2fsck_t ctx, const char * string, int def);
157b88c3
TT		 666extern void fatal_error(e2fsck_t ctx, const char * fmt_string)
667 E2FSCK_ATTR((noreturn));
b0e91c89
TT		 668extern void log_out(e2fsck_t ctx, const char *fmt, ...)
669 E2FSCK_ATTR((format(printf, 2, 3)));
670extern void log_err(e2fsck_t ctx, const char *fmt, ...)
671 E2FSCK_ATTR((format(printf, 2, 3)));
f8188fff
TT		 672extern void e2fsck_read_bitmaps(e2fsck_t ctx);
673extern void e2fsck_write_bitmaps(e2fsck_t ctx);
1b6bf175 674extern void preenhalt(e2fsck_t ctx);
0c6fe31f 675extern char *string_copy(e2fsck_t ctx, const char *str, size_t len);
80875db5
TT		 676extern int fs_proc_check(const char *fs_name);
677extern int check_for_modules(const char *fs_name);
8bf191e8 678#ifdef RESOURCE_TRACK
9facd076
KC		 679extern void print_resource_track(e2fsck_t ctx,
680 const char *desc,
6d96b00d
TT		 681 struct resource_track *track,
682 io_channel channel);
683extern void init_resource_track(struct resource_track *track,
684 io_channel channel);
9facd076
KC		 685#else
686#define print_resource_track(ctx, desc, track, channel) do { } while (0)
687#define init_resource_track(track, channel) do { } while (0)
8bf191e8 688#endif
3839e657 689extern int inode_has_valid_blocks(struct ext2_inode *inode);
08b21301 690extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
f3db3566 691 struct ext2_inode * inode, const char * proc);
fefaef39
AD		 692extern void e2fsck_read_inode_full(e2fsck_t ctx, unsigned long ino,
693 struct ext2_inode *inode,
694 const int bufsize, const char *proc);
08b21301 695extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
f3db3566 696 struct ext2_inode * inode, const char * proc);
9e0cbba8
MA		 697extern void e2fsck_write_inode_full(e2fsck_t ctx, unsigned long ino,
698 struct ext2_inode * inode, int bufsize,
699 const char *proc);
3839e657
TT		 700#ifdef MTRACE
701extern void mtrace_print(char *mesg);
702#endif
4dbfd79d 703extern blk64_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs,
f1a1761d 704 const char *name, io_manager manager);
6fdc7a32 705extern int ext2_file_type(unsigned int mode);
b0258cbc 706extern int write_all(int fd, char *buf, size_t count);
ac3256fd
TT		 707void dump_mmp_msg(struct mmp_struct *mmp, const char *fmt, ...)
708 E2FSCK_ATTR((format(printf, 2, 3)));
0f5eba75 709errcode_t e2fsck_mmp_update(ext2_filsys fs);
3839e657 710
830b44f4
TT		 711extern void e2fsck_set_bitmap_type(ext2_filsys fs,
712 unsigned int default_type,
713 const char *profile_name,
714 unsigned int *old_type);
715extern errcode_t e2fsck_allocate_inode_bitmap(ext2_filsys fs,
716 const char *descr,
717 int default_type,
718 const char *profile_name,
719 ext2fs_inode_bitmap *ret);
720extern errcode_t e2fsck_allocate_block_bitmap(ext2_filsys fs,
721 const char *descr,
722 int default_type,
723 const char *profile_name,
724 ext2fs_block_bitmap *ret);
725extern errcode_t e2fsck_allocate_subcluster_bitmap(ext2_filsys fs,
726 const char *descr,
727 int default_type,
728 const char *profile_name,
729 ext2fs_block_bitmap *ret);
79614b27 730unsigned long long get_memory_size(void);
830b44f4 731
5596defa
TT		 732/* unix.c */
733extern void e2fsck_clear_progbar(e2fsck_t ctx);
520ead37 734extern int e2fsck_simple_progress(e2fsck_t ctx, const char *label,
b0700a1b 735 float percent, unsigned int dpynum);
d5d981a3
TE		 736
737#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
738
56566129 739#endif /* _E2FSCK_H */
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