| /* |
| * 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> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #ifdef HAVE_SYS_TYPES_H |
| #include <sys/types.h> |
| #endif |
| #ifdef HAVE_SYS_TIME_H |
| #include <sys/time.h> |
| #endif |
| |
| #ifdef HAVE_LINUX_FS_H |
| #include <linux/fs.h> |
| #endif |
| #include <linux/ext2_fs.h> |
| |
| #include "ext2fs/ext2fs.h" |
| |
| #ifdef __STDC__ |
| #define NOARGS void |
| #else |
| #define NOARGS |
| #define const |
| #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_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 |
| |
| /* |
| * This is the global e2fsck structure. |
| */ |
| struct e2fsck_struct { |
| ext2_filsys fs; |
| const char *program_name; |
| const char *filesystem_name; |
| const char *device_name; |
| int options; |
| blk_t use_superblock; /* sb requested by user */ |
| blk_t superblock; /* sb used to open fs */ |
| |
| 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 */ |
| |
| /* |
| * For pass1_check_directory and pass1_get_blocks |
| */ |
| ino_t stashed_ino; |
| struct ext2_inode *stashed_inode; |
| |
| /* |
| * Tuning parameters |
| */ |
| int process_inode_size; |
| int inode_buffer_blocks; |
| |
| #ifdef RESOURCE_TRACK |
| /* |
| * For timing purposes |
| */ |
| struct resource_track global_rtrack; |
| #endif |
| |
| /* 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; |
| }; |
| |
| typedef struct e2fsck_struct *e2fsck_t; |
| |
| /* |
| * Variables |
| */ |
| extern int restart_e2fsck; |
| |
| /* |
| * Procedure declarations |
| */ |
| |
| extern void pass1(e2fsck_t ctx); |
| extern void pass1_dupblocks(e2fsck_t ctx, char *block_buf); |
| extern void pass2(e2fsck_t ctx); |
| extern void pass3(e2fsck_t ctx); |
| extern void pass4(e2fsck_t ctx); |
| extern void pass5(e2fsck_t ctx); |
| |
| /* e2fsck.c */ |
| errcode_t e2fsck_allocate_context(e2fsck_t *ret); |
| errcode_t e2fsck_reset_context(e2fsck_t ctx); |
| void e2fsck_free_context(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 add_dir_info(ext2_filsys fs, ino_t ino, ino_t parent); |
| extern struct dir_info *get_dir_info(ino_t ino); |
| extern void free_dir_info(ext2_filsys fs); |
| extern int get_num_dirs(ext2_filsys fs); |
| extern struct dir_info *dir_info_iter(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); |
| |
| /* swapfs.c */ |
| void swap_filesys(e2fsck_t ctx); |
| |
| /* util.c */ |
| extern void *allocate_memory(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 (const char * fmt_string); |
| extern void read_bitmaps(e2fsck_t ctx); |
| extern void 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(ext2_filsys fs, unsigned long ino, |
| struct ext2_inode * inode, const char * proc); |
| extern void e2fsck_write_inode(ext2_filsys fs, 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); |
| |
| #define die(str) fatal_error(str) |
| |
| /* |
| * pass3.c |
| */ |
| extern int reconnect_file(e2fsck_t ctx, ino_t inode); |