e2fsck/e2fsck.h

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