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 */ 731