[thirdparty/e2fsprogs.git] / e2fsck / e2fsck.h

/*
 * e2fsck.h
 *
 * Copyright (C) 1993, 1994 Theodore Ts'o.  This file may be
 * redistributed under the terms of the GNU Public License.
 *
 */

#ifndef _E2FSCK_H
#define _E2FSCK_H

#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

#include "profile.h"
#include "prof_err.h"

#ifdef ENABLE_NLS
#include <libintl.h>
#include <locale.h>
#define _(a) (gettext (a))
#ifdef gettext_noop
#define N_(a) gettext_noop (a)
#else
#define N_(a) (a)
#endif
#define P_(singular, plural, n) (ngettext (singular, plural, n))
#ifndef NLS_CAT_NAME
#define NLS_CAT_NAME "e2fsprogs"
#endif
#ifndef LOCALEDIR
#define LOCALEDIR "/usr/share/locale"
#endif
#else
#define _(a) (a)
#define N_(a) a
#define P_(singular, plural, n) ((n) == 1 ? (singular) : (plural))
#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;
	unsigned long long bytes_read;
	unsigned long long bytes_written;
};
#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
#define E2F_OPT_FRAGCHECK	0x0800

/*
 * 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_RESTART_LATER	0x0008 /* Restart after all iterations done */

#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 */
#define E2F_FLAG_GOT_DEVSIZE	0x0800 /* Device size has been fetched */
#define E2F_FLAG_EXITING	0x1000 /* E2fsck exiting due to errors */

/*
 * 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;

#define MAX_EXTENT_DEPTH_COUNT 5

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
	 */
	struct dir_info_db	*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;
	unsigned int htree_slack_percentage;

	/*
	 * 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 */
	__u32 fs_directory_count;
	__u32 fs_regular_count;
	__u32 fs_blockdev_count;
	__u32 fs_chardev_count;
	__u32 fs_links_count;
	__u32 fs_symlinks_count;
	__u32 fs_fast_symlinks_count;
	__u32 fs_fifo_count;
	__u32 fs_total_count;
	__u32 fs_badblocks_count;
	__u32 fs_sockets_count;
	__u32 fs_ind_count;
	__u32 fs_dind_count;
	__u32 fs_tind_count;
	__u32 fs_fragmented;
	__u32 fs_fragmented_dir;
	__u32 large_files;
	__u32 fs_ext_attr_inodes;
	__u32 fs_ext_attr_blocks;
	__u32 extent_depth_count[MAX_EXTENT_DEPTH_COUNT];

	/* misc fields */
	time_t now;
	time_t time_fudge;	/* For working around buggy init scripts */
	int ext_attr_ver;
	profile_t	profile;
	int blocks_per_page;

	/*
	 * 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);

/* crc32.c */
extern __u32 crc32_be(__u32 crc, unsigned char const *p, size_t len);

/* dirinfo.c */
extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
extern void e2fsck_free_dir_info(e2fsck_t ctx);
extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
extern struct dir_info_iter *e2fsck_dir_info_iter_begin(e2fsck_t ctx);
extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx,
					     struct dir_info_iter *);
extern void e2fsck_dir_info_iter_end(e2fsck_t ctx, struct dir_info_iter *);
extern int e2fsck_dir_info_set_parent(e2fsck_t ctx, ext2_ino_t ino,
				      ext2_ino_t parent);
extern int e2fsck_dir_info_set_dotdot(e2fsck_t ctx, ext2_ino_t ino,
				      ext2_ino_t dotdot);
extern int e2fsck_dir_info_get_parent(e2fsck_t ctx, ext2_ino_t ino,
				      ext2_ino_t *parent);
extern int e2fsck_dir_info_get_dotdot(e2fsck_t ctx, ext2_ino_t ino,
				      ext2_ino_t *dotdot);

/* 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);
extern int e2fsck_fix_ext3_journal_hint(e2fsck_t ctx);

/* pass1.c */
extern void e2fsck_setup_tdb_icount(e2fsck_t ctx, int flags,
				    ext2_icount_t *ret);
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, ext2_ino_t ino,
				      struct ext2_inode *inode, char *buf);
extern void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
			       struct ext2_inode *inode, int restart_flag,
			       const char *source);

/* 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);
int check_backup_super_block(e2fsck_t ctx);
void check_resize_inode(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);
extern char *string_copy(e2fsck_t ctx, const char *str, int len);
extern errcode_t e2fsck_zero_blocks(ext2_filsys fs, blk_t blk, int num,
				    blk_t *ret_blk, int *ret_count);
extern int fs_proc_check(const char *fs_name);
extern int check_for_modules(const char *fs_name);
#ifdef RESOURCE_TRACK
extern void print_resource_track(const char *desc,
				 struct resource_track *track,
				 io_channel channel);
extern void init_resource_track(struct resource_track *track,
				io_channel channel);
#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_read_inode_full(e2fsck_t ctx, unsigned long ino,
				   struct ext2_inode *inode,
				   const int bufsize, const char *proc);
extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
			       struct ext2_inode * inode, const char * proc);
extern void e2fsck_write_inode_full(e2fsck_t ctx, unsigned long ino,
                               struct ext2_inode * inode, int bufsize,
                               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);
extern int write_all(int fd, char *buf, size_t count);

/* 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);
#endif /* _E2FSCK_H */
Commit	Line	Data
3839e657 TT	1	/*
3839e657 TT	2	* e2fsck.h
efc6f628	3	*
3839e657 TT	4	* Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
3839e657 TT	5	* redistributed under the terms of the GNU Public License.
efc6f628	6	*
3839e657 TT	7	*/
3839e657 TT	8
56566129 AD	9	#ifndef _E2FSCK_H
	10	#define _E2FSCK_H
	11
3839e657 TT	12	#include <stdio.h>
3839e657 TT	13	#include <string.h>
4c77fe50	14	#ifdef HAVE_UNISTD_H
3839e657	15	#include <unistd.h>
4c77fe50	16	#endif
3839e657	17	#include <stdlib.h>
54be2ccc	18	#include <time.h>
b2da22d1	19	#ifdef HAVE_SYS_TYPES_H
3839e657	20	#include <sys/types.h>
b2da22d1 TT	21	#endif
b2da22d1 TT	22	#ifdef HAVE_SYS_TIME_H
3839e657	23	#include <sys/time.h>
b2da22d1	24	#endif
08b21301 TT	25	#ifdef HAVE_SETJMP_H
	26	#include <setjmp.h>
	27	#endif
3839e657	28
54dc7ca2 TT	29	#if EXT2_FLAT_INCLUDES
	30	#include "ext2_fs.h"
	31	#include "ext2fs.h"
f364093b	32	#include "blkid.h"
54dc7ca2	33	#else
54c637d4	34	#include "ext2fs/ext2_fs.h"
3839e657	35	#include "ext2fs/ext2fs.h"
f364093b	36	#include "blkid/blkid.h"
54dc7ca2 TT	37	#endif
54dc7ca2 TT	38
1017f651 TT	39	#include "profile.h"
	40	#include "prof_err.h"
	41
0c4a0726 TT	42	#ifdef ENABLE_NLS
	43	#include <libintl.h>
	44	#include <locale.h>
	45	#define _(a) (gettext (a))
	46	#ifdef gettext_noop
	47	#define N_(a) gettext_noop (a)
	48	#else
	49	#define N_(a) (a)
	50	#endif
113e405b	51	#define P_(singular, plural, n) (ngettext (singular, plural, n))
a04eba3f	52	#ifndef NLS_CAT_NAME
0c4a0726	53	#define NLS_CAT_NAME "e2fsprogs"
a04eba3f TT	54	#endif
a04eba3f TT	55	#ifndef LOCALEDIR
0c4a0726	56	#define LOCALEDIR "/usr/share/locale"
a04eba3f	57	#endif
0c4a0726 TT	58	#else
	59	#define _(a) (a)
	60	#define N_(a) a
113e405b	61	#define P_(singular, plural, n) ((n) == 1 ? (singular) : (plural))
0c4a0726 TT	62	#endif
0c4a0726 TT	63
3839e657 TT	64	/*
	65	* Exit codes used by fsck-type programs
	66	*/
	67	#define FSCK_OK 0 /* No errors */
	68	#define FSCK_NONDESTRUCT 1 /* File system errors corrected */
	69	#define FSCK_REBOOT 2 /* System should be rebooted */
	70	#define FSCK_UNCORRECTED 4 /* File system errors left uncorrected */
	71	#define FSCK_ERROR 8 /* Operational error */
	72	#define FSCK_USAGE 16 /* Usage or syntax error */
4cae0452	73	#define FSCK_CANCELED 32 /* Aborted with a signal or ^C */
3839e657 TT	74	#define FSCK_LIBRARY 128 /* Shared library error */
3839e657 TT	75
f3db3566 TT	76	/*
	77	* The last ext2fs revision level that this version of e2fsck is able to
	78	* support
	79	*/
1e3472c5	80	#define E2FSCK_CURRENT_REV 1
f3db3566	81
3839e657 TT	82	/*
	83	* The directory information structure; stores directory information
	84	* collected in earlier passes, to avoid disk i/o in fetching the
21c84b71	85	* directory information.
3839e657 TT	86	*/
3839e657 TT	87	struct dir_info {
86c627ec TT	88	ext2_ino_t ino; /* Inode number */
	89	ext2_ino_t dotdot; /* Parent according to '..' */
	90	ext2_ino_t parent; /* Parent according to treewalk */
3839e657 TT	91	};
3839e657 TT	92
8fdc9985 TT	93
	94	/*
	95	* The indexed directory information structure; stores information for
	96	* directories which contain a hash tree index.
	97	*/
	98	struct dx_dir_info {
	99	ext2_ino_t ino; /* Inode number */
	100	int numblocks; /* number of blocks */
	101	int hashversion;
ad4fa466	102	short depth; /* depth of tree */
8fdc9985 TT	103	struct dx_dirblock_info dx_block; / Array of size numblocks */
	104	};
	105
	106	#define DX_DIRBLOCK_ROOT 1
	107	#define DX_DIRBLOCK_LEAF 2
	108	#define DX_DIRBLOCK_NODE 3
	109	#define DX_DIRBLOCK_CORRUPT 4
	110	#define DX_DIRBLOCK_CLEARED 8
	111
	112	struct dx_dirblock_info {
	113	int type;
	114	blk_t phys;
	115	int flags;
	116	blk_t parent;
efc6f628	117	ext2_dirhash_t min_hash;
8fdc9985	118	ext2_dirhash_t max_hash;
efc6f628	119	ext2_dirhash_t node_min_hash;
8fdc9985 TT	120	ext2_dirhash_t node_max_hash;
	121	};
	122
	123	#define DX_FLAG_REFERENCED 1
	124	#define DX_FLAG_DUP_REF 2
	125	#define DX_FLAG_FIRST 4
	126	#define DX_FLAG_LAST 8
	127
8bf191e8	128	#ifdef RESOURCE_TRACK
3839e657 TT	129	/*
	130	* This structure is used for keeping track of how much resources have
	131	* been used for a particular pass of e2fsck.
	132	*/
	133	struct resource_track {
	134	struct timeval time_start;
	135	struct timeval user_start;
	136	struct timeval system_start;
	137	void *brk_start;
6d96b00d TT	138	unsigned long long bytes_read;
6d96b00d TT	139	unsigned long long bytes_written;
3839e657	140	};
8bf191e8	141	#endif
3839e657 TT	142
3839e657 TT	143	/*
1b6bf175	144	* E2fsck options
3839e657	145	*/
1b6bf175 TT	146	#define E2F_OPT_READONLY 0x0001
	147	#define E2F_OPT_PREEN 0x0002
	148	#define E2F_OPT_YES 0x0004
	149	#define E2F_OPT_NO 0x0008
	150	#define E2F_OPT_TIME 0x0010
	151	#define E2F_OPT_TIME2 0x0020
	152	#define E2F_OPT_CHECKBLOCKS 0x0040
	153	#define E2F_OPT_DEBUG 0x0080
d37066a9	154	#define E2F_OPT_FORCE 0x0100
3ed57c27	155	#define E2F_OPT_WRITECHECK 0x0200
850d05e9	156	#define E2F_OPT_COMPRESS_DIRS 0x0400
63b5e354	157	#define E2F_OPT_FRAGCHECK 0x0800
3839e657	158
08b21301 TT	159	/*
	160	* E2fsck flags
	161	*/
	162	#define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
	163	#define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
2df1f6aa	164	#define E2F_FLAG_SIGNAL_MASK 0x0003
08b21301	165	#define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
6267ee49	166	#define E2F_FLAG_RESTART_LATER 0x0008 /* Restart after all iterations done */
08b21301 TT	167
	168	#define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
	169
5596defa TT	170	#define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
5596defa TT	171	#define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
424cd2be	172	#define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
efc6f628	173	#define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
ae6cdcf7	174	* specified by the user */
6c7d61da	175	#define E2F_FLAG_RESTARTED 0x0200 /* E2fsck has been restarted */
c3ffaf83	176	#define E2F_FLAG_RESIZE_INODE 0x0400 /* Request to recreate resize inode */
d2af1bdd	177	#define E2F_FLAG_GOT_DEVSIZE 0x0800 /* Device size has been fetched */
79cc3362	178	#define E2F_FLAG_EXITING 0x1000 /* E2fsck exiting due to errors */
5596defa	179
08b21301 TT	180	/*
	181	* Defines for indicating the e2fsck pass number
	182	*/
	183	#define E2F_PASS_1 1
	184	#define E2F_PASS_2 2
	185	#define E2F_PASS_3 3
	186	#define E2F_PASS_4 4
	187	#define E2F_PASS_5 5
	188	#define E2F_PASS_1B 6
	189
342d847d TT	190	/*
	191	* Define the extended attribute refcount structure
	192	*/
	193	typedef struct ea_refcount *ext2_refcount_t;
	194
1b6bf175 TT	195	/*
	196	* This is the global e2fsck structure.
	197	*/
08b21301 TT	198	typedef struct e2fsck_struct *e2fsck_t;
08b21301 TT	199
8da6d1a1 TT	200	#define MAX_EXTENT_DEPTH_COUNT 5
8da6d1a1 TT	201
1b6bf175 TT	202	struct e2fsck_struct {
	203	ext2_filsys fs;
	204	const char *program_name;
f364093b TT	205	char *filesystem_name;
f364093b TT	206	char *device_name;
2e8ca9a2	207	char *io_options;
08b21301	208	int flags; /* E2fsck internal flags */
1b6bf175 TT	209	int options;
	210	blk_t use_superblock; /* sb requested by user */
	211	blk_t superblock; /* sb used to open fs */
f1a1761d	212	int blocksize; /* blocksize */
f8188fff	213	blk_t num_blocks; /* Total number of blocks */
ee895139	214	int mount_flags;
f364093b	215	blkid_cache blkid; /* blkid cache */
1b6bf175	216
08b21301 TT	217	#ifdef HAVE_SETJMP_H
	218	jmp_buf abort_loc;
	219	#endif
f8188fff	220	unsigned long abort_code;
08b21301	221
a02ce9df TT	222	int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
a02ce9df TT	223	unsigned long max);
08b21301	224
1b6bf175 TT	225	ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
	226	ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
	227	ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
	228	ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
aa4115a4 TT	229	ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
aa4115a4 TT	230	ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
1b6bf175 TT	231
	232	ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
	233	ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
342d847d	234	ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
1b6bf175 TT	235
	236	/*
	237	* Inode count arrays
	238	*/
	239	ext2_icount_t inode_count;
	240	ext2_icount_t inode_link_info;
	241
342d847d TT	242	ext2_refcount_t refcount;
	243	ext2_refcount_t refcount_extra;
	244
1b6bf175 TT	245	/*
	246	* Array of flags indicating whether an inode bitmap, block
	247	* bitmap, or inode table is invalid
	248	*/
	249	int *invalid_inode_bitmap_flag;
	250	int *invalid_block_bitmap_flag;
	251	int *invalid_inode_table_flag;
	252	int invalid_bitmaps; /* There are invalid bitmaps/itable */
	253
08b21301 TT	254	/*
	255	* Block buffer
	256	*/
	257	char *block_buf;
	258
1b6bf175 TT	259	/*
	260	* For pass1_check_directory and pass1_get_blocks
	261	*/
86c627ec	262	ext2_ino_t stashed_ino;
1b6bf175 TT	263	struct ext2_inode *stashed_inode;
1b6bf175 TT	264
850d05e9 TT	265	/*
	266	* Location of the lost and found directory
	267	*/
	268	ext2_ino_t lost_and_found;
	269	int bad_lost_and_found;
efc6f628	270
08b21301 TT	271	/*
	272	* Directory information
	273	*/
28db82a8	274	struct dir_info_db *dir_info;
08b21301	275
8fdc9985 TT	276	/*
	277	* Indexed directory information
	278	*/
	279	int dx_dir_info_count;
	280	int dx_dir_info_size;
	281	struct dx_dir_info *dx_dir_info;
	282
b7a00563 TT	283	/*
	284	* Directories to hash
	285	*/
	286	ext2_u32_list dirs_to_hash;
	287
1b6bf175 TT	288	/*
	289	* Tuning parameters
	290	*/
	291	int process_inode_size;
	292	int inode_buffer_blocks;
7dca4c88	293	unsigned int htree_slack_percentage;
1b6bf175	294
adee8d75 TT	295	/*
	296	* ext3 journal support
	297	*/
	298	io_channel journal_io;
f364093b	299	char *journal_name;
adee8d75	300
8bf191e8	301	#ifdef RESOURCE_TRACK
1b6bf175 TT	302	/*
	303	* For timing purposes
	304	*/
	305	struct resource_track global_rtrack;
8bf191e8	306	#endif
1b6bf175	307
efac9a1b TT	308	/*
	309	* How we display the progress update (for unix)
	310	*/
	311	int progress_fd;
	312	int progress_pos;
5596defa	313	int progress_last_percent;
06012323	314	unsigned int progress_last_time;
54a31a3b TT	315	int interactive; /* Are we connected directly to a tty? */
54a31a3b TT	316	char start_meta[2], stop_meta[2];
efc6f628	317
1b6bf175	318	/* File counts */
d0ff90d5 ES	319	__u32 fs_directory_count;
	320	__u32 fs_regular_count;
	321	__u32 fs_blockdev_count;
	322	__u32 fs_chardev_count;
	323	__u32 fs_links_count;
	324	__u32 fs_symlinks_count;
	325	__u32 fs_fast_symlinks_count;
	326	__u32 fs_fifo_count;
	327	__u32 fs_total_count;
	328	__u32 fs_badblocks_count;
	329	__u32 fs_sockets_count;
	330	__u32 fs_ind_count;
	331	__u32 fs_dind_count;
	332	__u32 fs_tind_count;
	333	__u32 fs_fragmented;
ce44d8ca	334	__u32 fs_fragmented_dir;
d0ff90d5 ES	335	__u32 large_files;
	336	__u32 fs_ext_attr_inodes;
	337	__u32 fs_ext_attr_blocks;
8da6d1a1	338	__u32 extent_depth_count[MAX_EXTENT_DEPTH_COUNT];
4313932c	339
9f0288d3	340	/* misc fields */
1f3ad14a	341	time_t now;
60702c26	342	time_t time_fudge; /* For working around buggy init scripts */
0684a4f3	343	int ext_attr_ver;
1017f651	344	profile_t profile;
9f0288d3	345	int blocks_per_page;
1017f651	346
4313932c TT	347	/*
	348	* For the use of callers of the e2fsck functions; not used by
	349	* e2fsck functions themselves.
	350	*/
	351	void *priv_data;
1b6bf175	352	};
f3db3566	353
55fd07ed TT	354	/* Used by the region allocation code */
	355	typedef __u32 region_addr_t;
	356	typedef struct region_struct *region_t;
1e3472c5	357
f364093b TT	358	#ifndef HAVE_STRNLEN
	359	#define strnlen(str, x) e2fsck_strnlen((str),(x))
	360	extern int e2fsck_strnlen(const char * s, int count);
	361	#endif
	362
3839e657 TT	363	/*
	364	* Procedure declarations
	365	*/
	366
08b21301 TT	367	extern void e2fsck_pass1(e2fsck_t ctx);
	368	extern void e2fsck_pass1_dupblocks(e2fsck_t ctx, char *block_buf);
	369	extern void e2fsck_pass2(e2fsck_t ctx);
	370	extern void e2fsck_pass3(e2fsck_t ctx);
	371	extern void e2fsck_pass4(e2fsck_t ctx);
	372	extern void e2fsck_pass5(e2fsck_t ctx);
1b6bf175 TT	373
1b6bf175 TT	374	/* e2fsck.c */
08b21301 TT	375	extern errcode_t e2fsck_allocate_context(e2fsck_t *ret);
	376	extern errcode_t e2fsck_reset_context(e2fsck_t ctx);
	377	extern void e2fsck_free_context(e2fsck_t ctx);
	378	extern int e2fsck_run(e2fsck_t ctx);
	379
3839e657 TT	380
3839e657 TT	381	/* badblock.c */
1b6bf175	382	extern void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
3839e657	383	int replace_bad_blocks);
3839e657	384
51d12ceb TT	385	/* crc32.c */
	386	extern __u32 crc32_be(__u32 crc, unsigned char const *p, size_t len);
	387
3839e657	388	/* dirinfo.c */
86c627ec	389	extern void e2fsck_add_dir_info(e2fsck_t ctx, ext2_ino_t ino, ext2_ino_t parent);
08b21301	390	extern void e2fsck_free_dir_info(e2fsck_t ctx);
f8188fff	391	extern int e2fsck_get_num_dirinfo(e2fsck_t ctx);
28db82a8	392	extern struct dir_info_iter *e2fsck_dir_info_iter_begin(e2fsck_t ctx);
efc6f628	393	extern struct dir_info *e2fsck_dir_info_iter(e2fsck_t ctx,
28db82a8 TT	394	struct dir_info_iter *);
28db82a8 TT	395	extern void e2fsck_dir_info_iter_end(e2fsck_t ctx, struct dir_info_iter *);
efc6f628	396	extern int e2fsck_dir_info_set_parent(e2fsck_t ctx, ext2_ino_t ino,
28db82a8	397	ext2_ino_t parent);
efc6f628	398	extern int e2fsck_dir_info_set_dotdot(e2fsck_t ctx, ext2_ino_t ino,
28db82a8	399	ext2_ino_t dotdot);
efc6f628	400	extern int e2fsck_dir_info_get_parent(e2fsck_t ctx, ext2_ino_t ino,
28db82a8	401	ext2_ino_t *parent);
efc6f628	402	extern int e2fsck_dir_info_get_dotdot(e2fsck_t ctx, ext2_ino_t ino,
28db82a8	403	ext2_ino_t *dotdot);
3839e657	404
8fdc9985 TT	405	/* dx_dirinfo.c */
	406	extern void e2fsck_add_dx_dir(e2fsck_t ctx, ext2_ino_t ino, int num_blocks);
	407	extern struct dx_dir_info *e2fsck_get_dx_dir_info(e2fsck_t ctx, ext2_ino_t ino);
	408	extern void e2fsck_free_dx_dir_info(e2fsck_t ctx);
	409	extern int e2fsck_get_num_dx_dirinfo(e2fsck_t ctx);
	410	extern struct dx_dir_info e2fsck_dx_dir_info_iter(e2fsck_t ctx, int control);
	411
342d847d TT	412	/* ea_refcount.c */
	413	extern errcode_t ea_refcount_create(int size, ext2_refcount_t *ret);
	414	extern void ea_refcount_free(ext2_refcount_t refcount);
	415	extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, blk_t blk,
	416	int *ret);
	417	extern errcode_t ea_refcount_increment(ext2_refcount_t refcount,
	418	blk_t blk, int *ret);
	419	extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount,
	420	blk_t blk, int *ret);
	421	extern errcode_t ea_refcount_store(ext2_refcount_t refcount,
	422	blk_t blk, int count);
4ea7bd04	423	extern blk_t ext2fs_get_refcount_size(ext2_refcount_t refcount);
342d847d TT	424	extern void ea_refcount_intr_begin(ext2_refcount_t refcount);
	425	extern blk_t ea_refcount_intr_next(ext2_refcount_t refcount, int *ret);
	426
3839e657 TT	427	/* ehandler.c */
	428	extern const char ehandler_operation(const char op);
	429	extern void ehandler_init(io_channel channel);
	430
17390c04	431	/* journal.c */
3b5386dc TT	432	extern int e2fsck_check_ext3_journal(e2fsck_t ctx);
3b5386dc TT	433	extern int e2fsck_run_ext3_journal(e2fsck_t ctx);
773fd8a1	434	extern void e2fsck_move_ext3_journal(e2fsck_t ctx);
b1c52b26	435	extern int e2fsck_fix_ext3_journal_hint(e2fsck_t ctx);
17390c04	436
e72a9ba3	437	/* pass1.c */
efc6f628	438	extern void e2fsck_setup_tdb_icount(e2fsck_t ctx, int flags,
34b9f796	439	ext2_icount_t *ret);
e72a9ba3	440	extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool);
0684a4f3 TT	441	extern int e2fsck_pass1_check_device_inode(ext2_filsys fs,
0684a4f3 TT	442	struct ext2_inode *inode);
7cadc577	443	extern int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
bcf9c5d4	444	struct ext2_inode inode, char buf);
e3df15ab TT	445	extern void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
	446	struct ext2_inode *inode, int restart_flag,
	447	const char *source);
e72a9ba3 TT	448
e72a9ba3 TT	449	/* pass2.c */
bcf9c5d4 TT	450	extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
bcf9c5d4 TT	451	ext2_ino_t ino, char *buf);
e72a9ba3 TT	452
e72a9ba3 TT	453	/* pass3.c */
86c627ec	454	extern int e2fsck_reconnect_file(e2fsck_t ctx, ext2_ino_t inode);
b7a00563 TT	455	extern errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
b7a00563 TT	456	int num, int gauranteed_size);
850d05e9	457	extern ext2_ino_t e2fsck_get_lost_and_found(e2fsck_t ctx, int fix);
efc6f628	458	extern errcode_t e2fsck_adjust_inode_count(e2fsck_t ctx, ext2_ino_t ino,
b0700a1b	459	int adj);
b7a00563	460
e72a9ba3	461
55fd07ed TT	462	/* region.c */
	463	extern region_t region_create(region_addr_t min, region_addr_t max);
	464	extern void region_free(region_t region);
	465	extern int region_allocate(region_t region, region_addr_t start, int n);
	466
b7a00563 TT	467	/* rehash.c */
	468	errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino);
	469	void e2fsck_rehash_directories(e2fsck_t ctx);
	470
1b6bf175 TT	471	/* super.c */
1b6bf175 TT	472	void check_super_block(e2fsck_t ctx);
0c37f456	473	int check_backup_super_block(e2fsck_t ctx);
69d0edfd	474	void check_resize_inode(e2fsck_t ctx);
1b6bf175	475
3839e657	476	/* util.c */
f8188fff TT	477	extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned int size,
f8188fff TT	478	const char *description);
1b6bf175	479	extern int ask(e2fsck_t ctx, const char * string, int def);
3839e657	480	extern int ask_yn(const char * string, int def);
f8188fff TT	481	extern void fatal_error(e2fsck_t ctx, const char * fmt_string);
	482	extern void e2fsck_read_bitmaps(e2fsck_t ctx);
	483	extern void e2fsck_write_bitmaps(e2fsck_t ctx);
1b6bf175	484	extern void preenhalt(e2fsck_t ctx);
f364093b	485	extern char string_copy(e2fsck_t ctx, const char str, int len);
49a7360b JS	486	extern errcode_t e2fsck_zero_blocks(ext2_filsys fs, blk_t blk, int num,
49a7360b JS	487	blk_t ret_blk, int ret_count);
80875db5 TT	488	extern int fs_proc_check(const char *fs_name);
80875db5 TT	489	extern int check_for_modules(const char *fs_name);
8bf191e8	490	#ifdef RESOURCE_TRACK
1b6bf175	491	extern void print_resource_track(const char *desc,
6d96b00d TT	492	struct resource_track *track,
	493	io_channel channel);
	494	extern void init_resource_track(struct resource_track *track,
	495	io_channel channel);
8bf191e8	496	#endif
3839e657	497	extern int inode_has_valid_blocks(struct ext2_inode *inode);
08b21301	498	extern void e2fsck_read_inode(e2fsck_t ctx, unsigned long ino,
f3db3566	499	struct ext2_inode * inode, const char * proc);
fefaef39 AD	500	extern void e2fsck_read_inode_full(e2fsck_t ctx, unsigned long ino,
	501	struct ext2_inode *inode,
	502	const int bufsize, const char *proc);
08b21301	503	extern void e2fsck_write_inode(e2fsck_t ctx, unsigned long ino,
f3db3566	504	struct ext2_inode * inode, const char * proc);
9e0cbba8 MA	505	extern void e2fsck_write_inode_full(e2fsck_t ctx, unsigned long ino,
	506	struct ext2_inode * inode, int bufsize,
	507	const char *proc);
3839e657 TT	508	#ifdef MTRACE
	509	extern void mtrace_print(char *mesg);
	510	#endif
f1a1761d TT	511	extern blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs,
f1a1761d TT	512	const char *name, io_manager manager);
6fdc7a32	513	extern int ext2_file_type(unsigned int mode);
b0258cbc	514	extern int write_all(int fd, char *buf, size_t count);
3839e657	515
5596defa TT	516	/* unix.c */
5596defa TT	517	extern void e2fsck_clear_progbar(e2fsck_t ctx);
520ead37	518	extern int e2fsck_simple_progress(e2fsck_t ctx, const char *label,
b0700a1b	519	float percent, unsigned int dpynum);
56566129	520	#endif /* _E2FSCK_H */