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Diffstat (limited to 'e2fsprogs/e2fsck/e2fsck.h')
| -rw-r--r-- | e2fsprogs/e2fsck/e2fsck.h | 446 |
1 files changed, 446 insertions, 0 deletions
diff --git a/e2fsprogs/e2fsck/e2fsck.h b/e2fsprogs/e2fsck/e2fsck.h new file mode 100644 index 0000000..489903d --- /dev/null +++ b/e2fsprogs/e2fsck/e2fsck.h @@ -0,0 +1,446 @@ +/* + * 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 + +#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 + +/* + * 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 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); |