| /* |
| * e2fsck.h |
| * |
| * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be |
| * redistributed under the terms of the GNU Public License. |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <string.h> |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| #include <stdlib.h> |
| #include <time.h> |
| #ifdef HAVE_SYS_TYPES_H |
| #include <sys/types.h> |
| #endif |
| #ifdef HAVE_SYS_TIME_H |
| #include <sys/time.h> |
| #endif |
| #ifdef HAVE_SETJMP_H |
| #include <setjmp.h> |
| #endif |
| |
| #ifdef HAVE_LINUX_FS_H |
| #include <linux/fs.h> |
| #endif |
| |
| #if EXT2_FLAT_INCLUDES |
| #include "ext2_fs.h" |
| #include "ext2fs.h" |
| #else |
| #include <linux/ext2_fs.h> |
| #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); |
| |
| |
| /* 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); |
| |
| /* pass1.c */ |
| extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool); |
| extern int e2fsck_pass1_check_device_inode(struct ext2_inode *inode); |
| |
| /* pass2.c */ |
| extern int e2fsck_process_bad_inode(e2fsck_t ctx, ino_t dir, ino_t ino); |
| |
| /* pass3.c */ |
| extern int e2fsck_reconnect_file(e2fsck_t ctx, ino_t inode); |
| |
| /* 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); |
| |