/* * 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 #ifdef HAVE_LINUX_FS_H #include #endif #if EXT2_FLAT_INCLUDES #include "ext2_fs.h" #include "ext2fs.h" #else #include #include "ext2fs/ext2fs.h" #endif /* Everything is STDC, these days */ #define NOARGS void /* * 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_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 { ino_t ino; /* Inode number */ ino_t dotdot; /* Parent according to '..' */ ino_t parent; /* Parent according to treewalk */ }; #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 /* * 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 */ /* * 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 /* * This is the global e2fsck structure. */ typedef struct e2fsck_struct *e2fsck_t; struct e2fsck_struct { ext2_filsys fs; const char *program_name; const char *filesystem_name; const char *device_name; int flags; /* E2fsck internal flags */ int options; blk_t use_superblock; /* sb requested by user */ blk_t superblock; /* sb used to open fs */ blk_t num_blocks; /* Total number of blocks */ #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_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_illegal_map; /* Meta-data blocks */ /* * Inode count arrays */ ext2_icount_t inode_count; ext2_icount_t inode_link_info; /* * 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 */ ino_t stashed_ino; struct ext2_inode *stashed_inode; /* * Directory information */ int dir_info_count; int dir_info_size; struct dir_info *dir_info; /* * Tuning parameters */ int process_inode_size; int inode_buffer_blocks; #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; /* 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; /* * For the use of callers of the e2fsck functions; not used by * e2fsck functions themselves. */ void *priv_data; }; /* * 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); /* pass1.c */ extern errcode_t pass1_check_directory(ext2_filsys fs, ino_t ino); extern errcode_t pass1_get_blocks(ext2_filsys fs, ino_t ino, blk_t *blocks); extern errcode_t pass1_read_inode(ext2_filsys fs, ino_t ino, struct ext2_inode *inode); extern errcode_t pass1_write_inode(ext2_filsys fs, ino_t ino, struct ext2_inode *inode); extern int e2fsck_pass1_check_device_inode(struct ext2_inode *inode); /* badblock.c */ extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file, int replace_bad_blocks); extern void test_disk(e2fsck_t ctx); /* dirinfo.c */ extern void e2fsck_add_dir_info(e2fsck_t ctx, ino_t ino, ino_t parent); extern struct dir_info *e2fsck_get_dir_info(e2fsck_t ctx, ino_t ino); extern void e2fsck_free_dir_info(e2fsck_t ctx); extern int e2fsck_get_num_dirs(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); /* ehandler.c */ extern const char *ehandler_operation(const char *op); extern void ehandler_init(io_channel channel); /* 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); #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(ext2_filsys fs); /* * pass3.c */ extern int e2fsck_reconnect_file(e2fsck_t ctx, ino_t inode);