busybox/e2fsprogs/e2fsck.h
2006-04-01 00:40:33 +00:00

352 lines
8.2 KiB
C

#include <sys/types.h>
#include <inttypes.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <time.h>
#include <fcntl.h>
#include <ctype.h>
#include <setjmp.h>
#include <errno.h>
#include <getopt.h>
#include <limits.h>
#include <stddef.h>
#include <assert.h>
#include <signal.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <sys/resource.h>
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/ioctl.h>
#include <malloc.h>
#include <termios.h>
#include <mntent.h>
#include <dirent.h>
#include "ext2fs/kernel-list.h"
#include <sys/types.h>
#include <linux/types.h>
/*
* Now pull in the real linux/jfs.h definitions.
*/
#include "ext2fs/kernel-jbd.h"
#include "fsck.h"
#include "ext2fs/ext2_fs.h"
#include "blkid/blkid.h"
#include "ext2fs/ext2_ext_attr.h"
#include "uuid/uuid.h"
#ifdef HAVE_CONIO_H
#undef HAVE_TERMIOS_H
#include <conio.h>
#define read_a_char() getch()
#else
#ifdef HAVE_TERMIOS_H
#include <termios.h>
#endif
#endif
/*
* The last ext2fs revision level that this version of e2fsck is able to
* support
*/
#define E2FSCK_CURRENT_REV 1
/* Used by the region allocation code */
typedef __u32 region_addr_t;
typedef struct region_struct *region_t;
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;
};
/*
These defines are used in the type field of dx_dirblock_info
*/
#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
/*
The following defines are used in the 'flags' field of a dx_dirblock_info
*/
#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
/*Don't know where these come from*/
#define READ 0
#define WRITE 1
#define KERN_ERR ""
#define KERN_DEBUG ""
#define cpu_to_be32(n) htonl(n)
#define be32_to_cpu(n) ntohl(n)
/*
* 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 the extended attribute refcount structure
*/
typedef struct ea_refcount *ext2_refcount_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 */
jmp_buf abort_loc;
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;
};
static inline int tid_gt(tid_t x, tid_t y)
{
int difference = (x - y);
return (difference > 0);
}
static inline int tid_geq(tid_t x, tid_t y)
{
int difference = (x - y);
return (difference >= 0);
}