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 "profile.h" 40 #include "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 "quota/mkquota.h" 71 72 /* 73 * Exit codes used by fsck-type programs 74 */ 75 #define FSCK_OK 0 /* No errors */ 76 #define FSCK_NONDESTRUCT 1 /* File system errors corrected */ 77 #define FSCK_REBOOT 2 /* System should be rebooted */ 78 #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */ 79 #define FSCK_ERROR 8 /* Operational error */ 80 #define FSCK_USAGE 16 /* Usage or syntax error */ 81 #define FSCK_CANCELED 32 /* Aborted with a signal or ^C */ 82 #define FSCK_LIBRARY 128 /* Shared library error */ 83 84 /* 85 * The last ext2fs revision level that this version of e2fsck is able to 86 * support 87 */ 88 #define E2FSCK_CURRENT_REV 1 89 90 /* 91 * The directory information structure; stores directory information 92 * collected in earlier passes, to avoid disk i/o in fetching the 93 * directory information. 94 */ 95 struct dir_info { 96 ext2_ino_t ino; /* Inode number */ 97 ext2_ino_t dotdot; /* Parent according to '..' */ 98 ext2_ino_t parent; /* Parent according to treewalk */ 99 }; 100 101 102 /* 103 * The indexed directory information structure; stores information for 104 * directories which contain a hash tree index. 105 */ 106 struct dx_dir_info { 107 ext2_ino_t ino; /* Inode number */ 108 int numblocks; /* number of blocks */ 109 int hashversion; 110 short depth; /* depth of tree */ 111 struct dx_dirblock_info *dx_block; /* Array of size numblocks */ 112 }; 113 114 #define DX_DIRBLOCK_ROOT 1 115 #define DX_DIRBLOCK_LEAF 2 116 #define DX_DIRBLOCK_NODE 3 117 #define DX_DIRBLOCK_CORRUPT 4 118 #define DX_DIRBLOCK_CLEARED 8 119 120 struct dx_dirblock_info { 121 int type; 122 blk64_t phys; 123 int flags; 124 blk64_t parent; 125 ext2_dirhash_t min_hash; 126 ext2_dirhash_t max_hash; 127 ext2_dirhash_t node_min_hash; 128 ext2_dirhash_t node_max_hash; 129 }; 130 131 #define DX_FLAG_REFERENCED 1 132 #define DX_FLAG_DUP_REF 2 133 #define DX_FLAG_FIRST 4 134 #define DX_FLAG_LAST 8 135 136 #define RESOURCE_TRACK 137 138 #ifdef RESOURCE_TRACK 139 /* 140 * This structure is used for keeping track of how much resources have 141 * been used for a particular pass of e2fsck. 142 */ 143 struct resource_track { 144 struct timeval time_start; 145 struct timeval user_start; 146 struct timeval system_start; 147 void *brk_start; 148 unsigned long long bytes_read; 149 unsigned long long bytes_written; 150 }; 151 #endif 152 153 /* 154 * E2fsck options 155 */ 156 #define E2F_OPT_READONLY 0x0001 157 #define E2F_OPT_PREEN 0x0002 158 #define E2F_OPT_YES 0x0004 159 #define E2F_OPT_NO 0x0008 160 #define E2F_OPT_TIME 0x0010 161 #define E2F_OPT_TIME2 0x0020 162 #define E2F_OPT_CHECKBLOCKS 0x0040 163 #define E2F_OPT_DEBUG 0x0080 164 #define E2F_OPT_FORCE 0x0100 165 #define E2F_OPT_WRITECHECK 0x0200 166 #define E2F_OPT_COMPRESS_DIRS 0x0400 167 #define E2F_OPT_FRAGCHECK 0x0800 168 #define E2F_OPT_JOURNAL_ONLY 0x1000 /* only replay the journal */ 169 #define E2F_OPT_DISCARD 0x2000 170 171 /* 172 * E2fsck flags 173 */ 174 #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */ 175 #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */ 176 #define E2F_FLAG_SIGNAL_MASK 0x0003 177 #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */ 178 #define E2F_FLAG_RESTART_LATER 0x0008 /* Restart after all iterations done */ 179 180 #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */ 181 182 #define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */ 183 #define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */ 184 #define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */ 185 #define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly 186 * specified by the user */ 187 #define E2F_FLAG_RESTARTED 0x0200 /* E2fsck has been restarted */ 188 #define E2F_FLAG_RESIZE_INODE 0x0400 /* Request to recreate resize inode */ 189 #define E2F_FLAG_GOT_DEVSIZE 0x0800 /* Device size has been fetched */ 190 #define E2F_FLAG_EXITING 0x1000 /* E2fsck exiting due to errors */ 191 #define E2F_FLAG_TIME_INSANE 0x2000 /* Time is insane */ 192 193 #define E2F_RESET_FLAGS (E2F_FLAG_TIME_INSANE) 194 195 /* 196 * Defines for indicating the e2fsck pass number 197 */ 198 #define E2F_PASS_1 1 199 #define E2F_PASS_2 2 200 #define E2F_PASS_3 3 201 #define E2F_PASS_4 4 202 #define E2F_PASS_5 5 203 #define E2F_PASS_1B 6 204 205 /* 206 * Define the extended attribute refcount structure 207 */ 208 typedef struct ea_refcount *ext2_refcount_t; 209 210 /* 211 * This is the global e2fsck structure. 212 */ 213 typedef struct e2fsck_struct *e2fsck_t; 214 215 #define MAX_EXTENT_DEPTH_COUNT 5 216 217 struct e2fsck_struct { 218 ext2_filsys fs; 219 const char *program_name; 220 char *filesystem_name; 221 char *device_name; 222 char *io_options; 223 FILE *logf; 224 char *log_fn; 225 int flags; /* E2fsck internal flags */ 226 int options; 227 int blocksize; /* blocksize */ 228 blk64_t use_superblock; /* sb requested by user */ 229 blk64_t superblock; /* sb used to open fs */ 230 blk64_t num_blocks; /* Total number of blocks */ 231 blk64_t free_blocks; 232 ino_t free_inodes; 233 int mount_flags; 234 blkid_cache blkid; /* blkid cache */ 235 236 #ifdef HAVE_SETJMP_H 237 jmp_buf abort_loc; 238 #endif 239 unsigned long abort_code; 240 241 int (*progress)(e2fsck_t ctx, int pass, unsigned long cur, 242 unsigned long max); 243 244 ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */ 245 ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */ 246 ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */ 247 ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */ 248 ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */ 249 ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/ 250 251 ext2fs_block_bitmap block_found_map; /* Blocks which are in use */ 252 ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */ 253 ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */ 254 255 /* 256 * Inode count arrays 257 */ 258 ext2_icount_t inode_count; 259 ext2_icount_t inode_link_info; 260 261 ext2_refcount_t refcount; 262 ext2_refcount_t refcount_extra; 263 264 /* 265 * Array of flags indicating whether an inode bitmap, block 266 * bitmap, or inode table is invalid 267 */ 268 int *invalid_inode_bitmap_flag; 269 int *invalid_block_bitmap_flag; 270 int *invalid_inode_table_flag; 271 int invalid_bitmaps; /* There are invalid bitmaps/itable */ 272 273 /* 274 * Block buffer 275 */ 276 char *block_buf; 277 278 /* 279 * For pass1_check_directory and pass1_get_blocks 280 */ 281 ext2_ino_t stashed_ino; 282 struct ext2_inode *stashed_inode; 283 284 /* 285 * Location of the lost and found directory 286 */ 287 ext2_ino_t lost_and_found; 288 int bad_lost_and_found; 289 290 /* 291 * Directory information 292 */ 293 struct dir_info_db *dir_info; 294 295 /* 296 * Indexed directory information 297 */ 298 int dx_dir_info_count; 299 int dx_dir_info_size; 300 struct dx_dir_info *dx_dir_info; 301 302 /* 303 * Directories to hash 304 */ 305 ext2_u32_list dirs_to_hash; 306 307 /* 308 * Tuning parameters 309 */ 310 int process_inode_size; 311 int inode_buffer_blocks; 312 unsigned int htree_slack_percentage; 313 314 /* 315 * ext3 journal support 316 */ 317 io_channel journal_io; 318 char *journal_name; 319 320 /* 321 * Ext4 quota support 322 */ 323 quota_ctx_t qctx; 324 #ifdef RESOURCE_TRACK 325 /* 326 * For timing purposes 327 */ 328 struct resource_track global_rtrack; 329 #endif 330 331 /* 332 * How we display the progress update (for unix) 333 */ 334 int progress_fd; 335 int progress_pos; 336 int progress_last_percent; 337 unsigned int progress_last_time; 338 int interactive; /* Are we connected directly to a tty? */ 339 char start_meta[2], stop_meta[2]; 340 341 /* File counts */ 342 __u32 fs_directory_count; 343 __u32 fs_regular_count; 344 __u32 fs_blockdev_count; 345 __u32 fs_chardev_count; 346 __u32 fs_links_count; 347 __u32 fs_symlinks_count; 348 __u32 fs_fast_symlinks_count; 349 __u32 fs_fifo_count; 350 __u32 fs_total_count; 351 __u32 fs_badblocks_count; 352 __u32 fs_sockets_count; 353 __u32 fs_ind_count; 354 __u32 fs_dind_count; 355 __u32 fs_tind_count; 356 __u32 fs_fragmented; 357 __u32 fs_fragmented_dir; 358 __u32 large_files; 359 __u32 fs_ext_attr_inodes; 360 __u32 fs_ext_attr_blocks; 361 __u32 extent_depth_count[MAX_EXTENT_DEPTH_COUNT]; 362 363 /* misc fields */ 364 time_t now; 365 time_t time_fudge; /* For working around buggy init scripts */ 366 int ext_attr_ver; 367 profile_t profile; 368 int blocks_per_page; 369 ext2_u32_list encrypted_dirs; 370 371 /* 372 * For the use of callers of the e2fsck functions; not used by 373 * e2fsck functions themselves. 374 */ 375 void *priv_data; 376 }; 377 378 /* Used by the region allocation code */ 379 typedef __u32 region_addr_t; 380 typedef struct region_struct *region_t; 381 382 #ifndef HAVE_STRNLEN 383 #define strnlen(str, x) e2fsck_strnlen((str),(x)) 384 extern int e2fsck_strnlen(const char * s, int count); 385 #endif 386 387 /* 388 * Procedure declarations 389 */ 390 391 extern void e2fsck_pass1(e2fsck_t ctx); 392 extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf); 393 extern void e2fsck_pass2(e2fsck_t ctx); 394 extern void e2fsck_pass3(e2fsck_t ctx); 395 extern void e2fsck_pass4(e2fsck_t ctx); 396 extern void e2fsck_pass5(e2fsck_t ctx); 397 398 /* e2fsck.c */ 399 extern errcode_t e2fsck_allocate_context(e2fsck_t *ret); 400 extern errcode_t e2fsck_reset_context(e2fsck_t ctx); 401 extern void e2fsck_free_context(e2fsck_t ctx); 402 extern int e2fsck_run(e2fsck_t ctx); 403 404 405 /* badblock.c */ 406 extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file, 407 int replace_bad_blocks); 408 409 /* crc32.c */ 410 extern __u32 crc32_be(__u32 crc, unsigned char const *p, size_t len); 411 412 /* dirinfo.c */ 413 extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent); 414 extern void e2fsck_free_dir_info(e2fsck_t ctx); 415 extern int e2fsck_get_num_dirinfo(e2fsck_t ctx); 416 extern struct dir_info_iter *e2fsck_dir_info_iter_begin(e2fsck_t ctx); 417 extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, 418 struct dir_info_iter *); 419 extern void e2fsck_dir_info_iter_end(e2fsck_t ctx, struct dir_info_iter *); 420 extern int e2fsck_dir_info_set_parent(e2fsck_t ctx, ext2_ino_t ino, 421 ext2_ino_t parent); 422 extern int e2fsck_dir_info_set_dotdot(e2fsck_t ctx, ext2_ino_t ino, 423 ext2_ino_t dotdot); 424 extern int e2fsck_dir_info_get_parent(e2fsck_t ctx, ext2_ino_t ino, 425 ext2_ino_t *parent); 426 extern int e2fsck_dir_info_get_dotdot(e2fsck_t ctx, ext2_ino_t ino, 427 ext2_ino_t *dotdot); 428 429 /* dx_dirinfo.c */ 430 extern void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks); 431 extern struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino); 432 extern void e2fsck_free_dx_dir_info(e2fsck_t ctx); 433 extern int e2fsck_get_num_dx_dirinfo(e2fsck_t ctx); 434 extern struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control); 435 436 /* ea_refcount.c */ 437 extern errcode_t ea_refcount_create(int size, ext2_refcount_t *ret); 438 extern void ea_refcount_free(ext2_refcount_t refcount); 439 extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk64_t blk, int *ret); 440 extern errcode_t ea_refcount_increment(ext2_refcount_t refcount, 441 blk64_t blk, int *ret); 442 extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount, 443 blk64_t blk, int *ret); 444 extern errcode_t ea_refcount_store(ext2_refcount_t refcount, 445 blk64_t blk, int count); 446 extern blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount); 447 extern void ea_refcount_intr_begin(ext2_refcount_t refcount); 448 extern blk64_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret); 449 450 /* ehandler.c */ 451 extern const char *ehandler_operation(const char *op); 452 extern void ehandler_init(io_channel channel); 453 454 /* journal.c */ 455 extern errcode_t e2fsck_check_ext3_journal(e2fsck_t ctx); 456 extern errcode_t e2fsck_run_ext3_journal(e2fsck_t ctx); 457 extern void e2fsck_move_ext3_journal(e2fsck_t ctx); 458 extern int e2fsck_fix_ext3_journal_hint(e2fsck_t ctx); 459 460 /* logfile.c */ 461 extern void set_up_logging(e2fsck_t ctx); 462 463 /* quota.c */ 464 extern void e2fsck_hide_quota(e2fsck_t ctx); 465 466 /* pass1.c */ 467 extern void e2fsck_setup_tdb_icount(e2fsck_t ctx, int flags, 468 ext2_icount_t *ret); 469 extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts); 470 extern int e2fsck_pass1_check_device_inode(ext2_filsys fs, 471 struct ext2_inode *inode); 472 extern int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino, 473 struct ext2_inode *inode, char *buf); 474 extern void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino, 475 struct ext2_inode *inode, int restart_flag, 476 const char *source); 477 478 /* pass2.c */ 479 extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir, 480 ext2_ino_t ino, char *buf); 481 482 /* pass3.c */ 483 extern int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode); 484 extern errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir, 485 int num, int gauranteed_size); 486 extern ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix); 487 extern errcode_t e2fsck_adjust_inode_count(e2fsck_t ctx, ext2_ino_t ino, 488 int adj); 489 490 491 /* region.c */ 492 extern region_t region_create(region_addr_t min, region_addr_t max); 493 extern void region_free(region_t region); 494 extern int region_allocate(region_t region, region_addr_t start, int n); 495 496 /* rehash.c */ 497 errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino); 498 void e2fsck_rehash_directories(e2fsck_t ctx); 499 500 /* sigcatcher.c */ 501 void sigcatcher_setup(void); 502 503 /* super.c */ 504 void check_super_block(e2fsck_t ctx); 505 int check_backup_super_block(e2fsck_t ctx); 506 void check_resize_inode(e2fsck_t ctx); 507 508 /* util.c */ 509 extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size, 510 const char *description); 511 extern int ask(e2fsck_t ctx, const char * string, int def); 512 extern int ask_yn(e2fsck_t ctx, const char * string, int def); 513 extern void fatal_error(e2fsck_t ctx, const char * fmt_string); 514 extern void log_out(e2fsck_t ctx, const char *fmt, ...) 515 E2FSCK_ATTR((format(printf, 2, 3))); 516 extern void log_err(e2fsck_t ctx, const char *fmt, ...) 517 E2FSCK_ATTR((format(printf, 2, 3))); 518 extern void e2fsck_read_bitmaps(e2fsck_t ctx); 519 extern void e2fsck_write_bitmaps(e2fsck_t ctx); 520 extern void preenhalt(e2fsck_t ctx); 521 extern char *string_copy(e2fsck_t ctx, const char *str, int len); 522 extern errcode_t e2fsck_zero_blocks(ext2_filsys fs, blk_t blk, int num, 523 blk_t *ret_blk, int *ret_count); 524 extern int fs_proc_check(const char *fs_name); 525 extern int check_for_modules(const char *fs_name); 526 #ifdef RESOURCE_TRACK 527 extern void print_resource_track(e2fsck_t ctx, 528 const char *desc, 529 struct resource_track *track, 530 io_channel channel); 531 extern void init_resource_track(struct resource_track *track, 532 io_channel channel); 533 #else 534 #define print_resource_track(ctx, desc, track, channel) do { } while (0) 535 #define init_resource_track(track, channel) do { } while (0) 536 #endif 537 extern int inode_has_valid_blocks(struct ext2_inode *inode); 538 extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino, 539 struct ext2_inode * inode, const char * proc); 540 extern void e2fsck_read_inode_full(e2fsck_t ctx, unsigned long ino, 541 struct ext2_inode *inode, 542 const int bufsize, const char *proc); 543 extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino, 544 struct ext2_inode * inode, const char * proc); 545 extern void e2fsck_write_inode_full(e2fsck_t ctx, unsigned long ino, 546 struct ext2_inode * inode, int bufsize, 547 const char *proc); 548 #ifdef MTRACE 549 extern void mtrace_print(char *mesg); 550 #endif 551 extern blk64_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs, 552 const char *name, io_manager manager); 553 extern int ext2_file_type(unsigned int mode); 554 extern int write_all(int fd, char *buf, size_t count); 555 void dump_mmp_msg(struct mmp_struct *mmp, const char *msg); 556 errcode_t e2fsck_mmp_update(ext2_filsys fs); 557 558 extern void e2fsck_set_bitmap_type(ext2_filsys fs, 559 unsigned int default_type, 560 const char *profile_name, 561 unsigned int *old_type); 562 extern errcode_t e2fsck_allocate_inode_bitmap(ext2_filsys fs, 563 const char *descr, 564 int default_type, 565 const char *profile_name, 566 ext2fs_inode_bitmap *ret); 567 extern errcode_t e2fsck_allocate_block_bitmap(ext2_filsys fs, 568 const char *descr, 569 int default_type, 570 const char *profile_name, 571 ext2fs_block_bitmap *ret); 572 extern errcode_t e2fsck_allocate_subcluster_bitmap(ext2_filsys fs, 573 const char *descr, 574 int default_type, 575 const char *profile_name, 576 ext2fs_block_bitmap *ret); 577 578 /* unix.c */ 579 extern void e2fsck_clear_progbar(e2fsck_t ctx); 580 extern int e2fsck_simple_progress(e2fsck_t ctx, const char *label, 581 float percent, unsigned int dpynum); 582 #endif /* _E2FSCK_H */ 583