/* * e2fsck.h * * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be * redistributed under the terms of the GNU Public License. * */ #include #include #ifdef HAVE_UNISTD_H #include #endif #include #include #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_TIME_H #include #endif #ifdef HAVE_SETJMP_H #include #endif #if EXT2_FLAT_INCLUDES #include "ext2_fs.h" #include "ext2fs.h" #include "blkid.h" #else #include "ext2fs/ext2_fs.h" #include "ext2fs/ext2fs.h" #include "blkid/blkid.h" #endif #ifdef ENABLE_NLS #include #include #define _(a) (gettext (a)) #ifdef gettext_noop #define N_(a) gettext_noop (a) #else #define N_(a) (a) #endif #define P_(singular, plural, n) (ngettext (singular, plural, n)) #ifndef NLS_CAT_NAME #define NLS_CAT_NAME "e2fsprogs" #endif #ifndef LOCALEDIR #define LOCALEDIR "/usr/share/locale" #endif #else #define _(a) (a) #define N_(a) a #define P_(singular, plural, n) ((n) == 1 ? (singular) : (plural)) #endif /* * Exit codes used by fsck-type programs */ #define FSCK_OK 0 /* No errors */ #define FSCK_NONDESTRUCT 1 /* File system errors corrected */ #define FSCK_REBOOT 2 /* System should be rebooted */ #define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */ #define FSCK_ERROR 8 /* Operational error */ #define FSCK_USAGE 16 /* Usage or syntax error */ #define FSCK_CANCELED 32 /* Aborted with a signal or ^C */ #define FSCK_LIBRARY 128 /* Shared library error */ /* * The last ext2fs revision level that this version of e2fsck is able to * support */ #define E2FSCK_CURRENT_REV 1 /* * The directory information structure; stores directory information * collected in earlier passes, to avoid disk i/o in fetching the * directory information. */ struct dir_info { ext2_ino_t ino; /* Inode number */ ext2_ino_t dotdot; /* Parent according to '..' */ ext2_ino_t parent; /* Parent according to treewalk */ }; /* * The indexed directory information structure; stores information for * directories which contain a hash tree index. */ struct dx_dir_info { ext2_ino_t ino; /* Inode number */ int numblocks; /* number of blocks */ int hashversion; short depth; /* depth of tree */ struct dx_dirblock_info *dx_block; /* Array of size numblocks */ }; #define DX_DIRBLOCK_ROOT 1 #define DX_DIRBLOCK_LEAF 2 #define DX_DIRBLOCK_NODE 3 #define DX_DIRBLOCK_CORRUPT 4 #define DX_DIRBLOCK_CLEARED 8 struct dx_dirblock_info { int type; blk_t phys; int flags; blk_t parent; ext2_dirhash_t min_hash; ext2_dirhash_t max_hash; ext2_dirhash_t node_min_hash; ext2_dirhash_t node_max_hash; }; #define DX_FLAG_REFERENCED 1 #define DX_FLAG_DUP_REF 2 #define DX_FLAG_FIRST 4 #define DX_FLAG_LAST 8 #ifdef RESOURCE_TRACK /* * This structure is used for keeping track of how much resources have * been used for a particular pass of e2fsck. */ struct resource_track { struct timeval time_start; struct timeval user_start; struct timeval system_start; void *brk_start; }; #endif /* * E2fsck options */ #define E2F_OPT_READONLY 0x0001 #define E2F_OPT_PREEN 0x0002 #define E2F_OPT_YES 0x0004 #define E2F_OPT_NO 0x0008 #define E2F_OPT_TIME 0x0010 #define E2F_OPT_TIME2 0x0020 #define E2F_OPT_CHECKBLOCKS 0x0040 #define E2F_OPT_DEBUG 0x0080 #define E2F_OPT_FORCE 0x0100 #define E2F_OPT_WRITECHECK 0x0200 #define E2F_OPT_COMPRESS_DIRS 0x0400 /* * E2fsck flags */ #define E2F_FLAG_ABORT 0x0001 /* Abort signaled */ #define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */ #define E2F_FLAG_SIGNAL_MASK 0x0003 #define E2F_FLAG_RESTART 0x0004 /* Restart signaled */ #define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */ #define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */ #define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */ #define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */ #define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly * specified by the user */ #define E2F_FLAG_RESTARTED 0x0200 /* E2fsck has been restarted */ #define E2F_FLAG_RESIZE_INODE 0x0400 /* Request to recreate resize inode */ /* * Defines for indicating the e2fsck pass number */ #define E2F_PASS_1 1 #define E2F_PASS_2 2 #define E2F_PASS_3 3 #define E2F_PASS_4 4 #define E2F_PASS_5 5 #define E2F_PASS_1B 6 /* * Define the extended attribute refcount structure */ typedef struct ea_refcount *ext2_refcount_t; /* * This is the global e2fsck structure. */ typedef struct e2fsck_struct *e2fsck_t; struct e2fsck_struct { ext2_filsys fs; const char *program_name; char *filesystem_name; char *device_name; char *io_options; int flags; /* E2fsck internal flags */ int options; blk_t use_superblock; /* sb requested by user */ blk_t superblock; /* sb used to open fs */ int blocksize; /* blocksize */ blk_t num_blocks; /* Total number of blocks */ int mount_flags; blkid_cache blkid; /* blkid cache */ #ifdef HAVE_SETJMP_H jmp_buf abort_loc; #endif unsigned long abort_code; int (*progress)(e2fsck_t ctx, int pass, unsigned long cur, unsigned long max); ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */ ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */ ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */ ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */ ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */ ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/ ext2fs_block_bitmap block_found_map; /* Blocks which are in use */ ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */ ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */ /* * Inode count arrays */ ext2_icount_t inode_count; ext2_icount_t inode_link_info; ext2_refcount_t refcount; ext2_refcount_t refcount_extra; /* * Array of flags indicating whether an inode bitmap, block * bitmap, or inode table is invalid */ int *invalid_inode_bitmap_flag; int *invalid_block_bitmap_flag; int *invalid_inode_table_flag; int invalid_bitmaps; /* There are invalid bitmaps/itable */ /* * Block buffer */ char *block_buf; /* * For pass1_check_directory and pass1_get_blocks */ ext2_ino_t stashed_ino; struct ext2_inode *stashed_inode; /* * Location of the lost and found directory */ ext2_ino_t lost_and_found; int bad_lost_and_found; /* * Directory information */ int dir_info_count; int dir_info_size; struct dir_info *dir_info; /* * Indexed directory information */ int dx_dir_info_count; int dx_dir_info_size; struct dx_dir_info *dx_dir_info; /* * Directories to hash */ ext2_u32_list dirs_to_hash; /* * Tuning parameters */ int process_inode_size; int inode_buffer_blocks; /* * ext3 journal support */ io_channel journal_io; char *journal_name; #ifdef RESOURCE_TRACK /* * For timing purposes */ struct resource_track global_rtrack; #endif /* * How we display the progress update (for unix) */ int progress_fd; int progress_pos; int progress_last_percent; unsigned int progress_last_time; int interactive; /* Are we connected directly to a tty? */ char start_meta[2], stop_meta[2]; /* File counts */ int fs_directory_count; int fs_regular_count; int fs_blockdev_count; int fs_chardev_count; int fs_links_count; int fs_symlinks_count; int fs_fast_symlinks_count; int fs_fifo_count; int fs_total_count; int fs_badblocks_count; int fs_sockets_count; int fs_ind_count; int fs_dind_count; int fs_tind_count; int fs_fragmented; int large_files; int fs_ext_attr_inodes; int fs_ext_attr_blocks; int ext_attr_ver; /* * For the use of callers of the e2fsck functions; not used by * e2fsck functions themselves. */ void *priv_data; }; /* Used by the region allocation code */ typedef __u32 region_addr_t; typedef struct region_struct *region_t; #ifndef HAVE_STRNLEN #define strnlen(str, x) e2fsck_strnlen((str),(x)) extern int e2fsck_strnlen(const char * s, int count); #endif /* * Procedure declarations */ extern void e2fsck_pass1(e2fsck_t ctx); extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf); extern void e2fsck_pass2(e2fsck_t ctx); extern void e2fsck_pass3(e2fsck_t ctx); extern void e2fsck_pass4(e2fsck_t ctx); extern void e2fsck_pass5(e2fsck_t ctx); /* e2fsck.c */ extern errcode_t e2fsck_allocate_context(e2fsck_t *ret); extern errcode_t e2fsck_reset_context(e2fsck_t ctx); extern void e2fsck_free_context(e2fsck_t ctx); extern int e2fsck_run(e2fsck_t ctx); /* badblock.c */ extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file, int replace_bad_blocks); /* dirinfo.c */ extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent); extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ext2_ino_t ino); extern void e2fsck_free_dir_info(e2fsck_t ctx); extern int e2fsck_get_num_dirinfo(e2fsck_t ctx); extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx, int *control); /* dx_dirinfo.c */ extern void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks); extern struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino); extern void e2fsck_free_dx_dir_info(e2fsck_t ctx); extern int e2fsck_get_num_dx_dirinfo(e2fsck_t ctx); extern struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx, int *control); /* ea_refcount.c */ extern errcode_t ea_refcount_create(int size, ext2_refcount_t *ret); extern void ea_refcount_free(ext2_refcount_t refcount); extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk, int *ret); extern errcode_t ea_refcount_increment(ext2_refcount_t refcount, blk_t blk, int *ret); extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount, blk_t blk, int *ret); extern errcode_t ea_refcount_store(ext2_refcount_t refcount, blk_t blk, int count); extern blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount); extern void ea_refcount_intr_begin(ext2_refcount_t refcount); extern blk_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret); /* ehandler.c */ extern const char *ehandler_operation(const char *op); extern void ehandler_init(io_channel channel); /* journal.c */ extern int e2fsck_check_ext3_journal(e2fsck_t ctx); extern int e2fsck_run_ext3_journal(e2fsck_t ctx); extern void e2fsck_move_ext3_journal(e2fsck_t ctx); /* pass1.c */ extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool); extern int e2fsck_pass1_check_device_inode(ext2_filsys fs, struct ext2_inode *inode); extern int e2fsck_pass1_check_symlink(ext2_filsys fs, struct ext2_inode *inode, char *buf); /* pass2.c */ extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir, ext2_ino_t ino, char *buf); /* pass3.c */ extern int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode); extern errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir, int num, int gauranteed_size); extern ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix); extern errcode_t e2fsck_adjust_inode_count(e2fsck_t ctx, ext2_ino_t ino, int adj); /* region.c */ extern region_t region_create(region_addr_t min, region_addr_t max); extern void region_free(region_t region); extern int region_allocate(region_t region, region_addr_t start, int n); /* rehash.c */ errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino); void e2fsck_rehash_directories(e2fsck_t ctx); /* super.c */ void check_super_block(e2fsck_t ctx); errcode_t e2fsck_get_device_size(e2fsck_t ctx); /* swapfs.c */ void swap_filesys(e2fsck_t ctx); /* util.c */ extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size, const char *description); extern int ask(e2fsck_t ctx, const char * string, int def); extern int ask_yn(const char * string, int def); extern void fatal_error(e2fsck_t ctx, const char * fmt_string); extern void e2fsck_read_bitmaps(e2fsck_t ctx); extern void e2fsck_write_bitmaps(e2fsck_t ctx); extern void preenhalt(e2fsck_t ctx); extern char *string_copy(e2fsck_t ctx, const char *str, int len); #ifdef RESOURCE_TRACK extern void print_resource_track(const char *desc, struct resource_track *track); extern void init_resource_track(struct resource_track *track); #endif extern int inode_has_valid_blocks(struct ext2_inode *inode); extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino, struct ext2_inode * inode, const char * proc); extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino, struct ext2_inode * inode, const char * proc); #ifdef MTRACE extern void mtrace_print(char *mesg); #endif extern blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs, const char *name, io_manager manager); extern int ext2_file_type(unsigned int mode); /* unix.c */ extern void e2fsck_clear_progbar(e2fsck_t ctx); extern int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent, unsigned int dpynum);