Adding upstream version 1.47.0.upstream/1.47.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 738 insertions, 0 deletions

diff --git a/e2fsck/e2fsck.h b/e2fsck/e2fsck.h
new file mode 100644
index 0000000..3f2dc30
--- /dev/null
+++ b/e2fsck/e2fsck.h
@@ -0,0 +1,738 @@
+/*
+ * 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 "support/profile.h"
+#include "support/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
+
+#ifdef __GNUC__
+#define E2FSCK_ATTR(x) __attribute__(x)
+#else
+#define E2FSCK_ATTR(x)
+#endif
+
+#include "support/quotaio.h"
+#if __GNUC_PREREQ (4, 6)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+#endif
+#include "ext2fs/fast_commit.h"
+#if __GNUC_PREREQ (4, 6)
+#pragma GCC diagnostic pop
+#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 */
+	short			depth;		/* depth of tree (15 bits) */
+	__u8			hashversion;
+	__u8			casefolded_hash:1;
+	blk_t			numblocks;	/* number of blocks in dir */
+	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;
+	int		flags;
+	blk64_t		phys;
+	blk64_t		parent;
+	blk64_t		previous;
+	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
+
+struct encrypted_file_info;
+
+#define RESOURCE_TRACK
+
+#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
+#define E2F_OPT_JOURNAL_ONLY	0x1000 /* only replay the journal */
+#define E2F_OPT_DISCARD		0x2000
+#define E2F_OPT_CONVERT_BMAP	0x4000 /* convert blockmap to extent */
+#define E2F_OPT_FIXES_ONLY	0x8000 /* skip all optimizations */
+#define E2F_OPT_NOOPT_EXTENTS	0x10000 /* don't optimize extents */
+#define E2F_OPT_ICOUNT_FULLMAP	0x20000 /* use an array for inode counts */
+#define E2F_OPT_UNSHARE_BLOCKS  0x40000
+#define E2F_OPT_CLEAR_UNINIT	0x80000 /* Hack to clear the uninit bit */
+#define E2F_OPT_CHECK_ENCODING  0x100000 /* Force verification of encoded filenames */
+
+/*
+ * E2fsck flags
+ */
+#define E2F_FLAG_ABORT		0x0001 /* Abort signaled */
+#define E2F_FLAG_CANCEL		0x0002 /* Cancel signaled */
+#define E2F_FLAG_SIGNAL_MASK	(E2F_FLAG_ABORT | E2F_FLAG_CANCEL)
+#define E2F_FLAG_RESTART	0x0004 /* Restart signaled */
+#define E2F_FLAG_RUN_RETURN	(E2F_FLAG_SIGNAL_MASK | E2F_FLAG_RESTART)
+#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 */
+#define E2F_FLAG_TIME_INSANE	0x2000 /* Time is insane */
+#define E2F_FLAG_PROBLEMS_FIXED	0x4000 /* At least one problem was fixed */
+#define E2F_FLAG_ALLOC_OK	0x8000 /* Can we allocate blocks? */
+
+#define E2F_RESET_FLAGS (E2F_FLAG_TIME_INSANE | E2F_FLAG_PROBLEMS_FIXED)
+
+/*
+ * 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 8
+
+/*
+ * This structure is used to manage the list of extents in a file. Placing
+ * it here since this is used by fast_commit.h.
+ */
+struct extent_list {
+	blk64_t blocks_freed;
+	struct ext2fs_extent *extents;
+	unsigned int count;
+	unsigned int size;
+	unsigned int ext_read;
+	errcode_t retval;
+	ext2_ino_t ino;
+};
+
+/* State structure for fast commit replay */
+struct e2fsck_fc_replay_state {
+	struct extent_list fc_extent_list;
+	int fc_replay_num_tags;
+	int fc_replay_expected_off;
+	enum passtype fc_current_pass;
+	int fc_cur_tag;
+	unsigned int fc_crc;
+	__u16 fc_super_state;
+};
+
+struct e2fsck_struct {
+	ext2_filsys fs;
+	const char *program_name;
+	char *filesystem_name;
+	char *device_name;
+	char *io_options;
+	FILE	*logf;
+	char	*log_fn;
+	FILE	*problem_logf;
+	char	*problem_log_fn;
+	int	flags;		/* E2fsck internal flags */
+	int	options;
+	unsigned blocksize;	/* blocksize */
+	blk64_t	use_superblock;	/* sb requested by user */
+	blk64_t	superblock;	/* sb used to open fs */
+	blk64_t	num_blocks;	/* Total number of blocks */
+	blk64_t	free_blocks;
+	ext2_ino_t free_inodes;
+	int	mount_flags;
+	int	openfs_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_inode_bitmap inode_casefold_map; /* Inodes which are casefolded */
+
+	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;
+
+	/*
+	 * Quota blocks and inodes to be charged for each ea block.
+	 */
+	ext2_refcount_t ea_block_quota_blocks;
+	ext2_refcount_t ea_block_quota_inodes;
+
+	/*
+	 * ea_inode references from attr entries.
+	 */
+	ext2_refcount_t ea_inode_refs;
+
+	/*
+	 * 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
+	 */
+	ext2_ino_t		dx_dir_info_count;
+	ext2_ino_t		dx_dir_info_size;
+	struct dx_dir_info	*dx_dir_info;
+
+	/*
+	 * Directories to hash
+	 */
+	ext2_u32_list	dirs_to_hash;
+
+	/*
+	 * Encrypted file information
+	 */
+	struct encrypted_file_info *encrypted_files;
+
+	/*
+	 * 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;
+
+	/*
+	 * Ext4 quota support
+	 */
+	quota_ctx_t qctx;
+#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 large_dirs;
+	__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;
+	ext2_u32_list casefolded_dirs;
+
+	/* Reserve blocks for root and l+f re-creation */
+	blk64_t root_repair_block, lnf_repair_block;
+
+	/*
+	 * For the use of callers of the e2fsck functions; not used by
+	 * e2fsck functions themselves.
+	 */
+	void *priv_data;
+	ext2fs_block_bitmap block_metadata_map; /* Metadata blocks */
+
+	/* How much are we allowed to readahead? */
+	unsigned long long readahead_kb;
+
+	/*
+	 * Inodes to rebuild extent trees
+	 */
+	ext2fs_inode_bitmap inodes_to_rebuild;
+
+	/* Undo file */
+	char *undo_file;
+
+	/* Fast commit replay state */
+	struct e2fsck_fc_replay_state fc_replay_state;
+};
+
+/* Data structures to evaluate whether an extent tree needs rebuilding. */
+struct extent_tree_level {
+	unsigned int	num_extents;
+	unsigned int	max_extents;
+};
+
+struct extent_tree_info {
+	ext2_ino_t ino;
+	int force_rebuild;
+	struct extent_tree_level	ext_info[MAX_EXTENT_DEPTH_COUNT];
+};
+
+/* Used by the region allocation code */
+typedef __u64 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 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,
+			      struct ext2_inode *inode, 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 ext2_ino_t e2fsck_get_num_dx_dirinfo(e2fsck_t ctx);
+extern struct dx_dir_info *e2fsck_dx_dir_info_iter(e2fsck_t ctx,
+						   ext2_ino_t *control);
+
+/* ea_refcount.c */
+typedef __u64 ea_key_t;
+typedef __u64 ea_value_t;
+
+extern errcode_t ea_refcount_create(size_t size, ext2_refcount_t *ret);
+extern void ea_refcount_free(ext2_refcount_t refcount);
+extern errcode_t ea_refcount_fetch(ext2_refcount_t refcount, ea_key_t ea_key,
+				   ea_value_t *ret);
+extern errcode_t ea_refcount_increment(ext2_refcount_t refcount,
+				       ea_key_t ea_key, ea_value_t *ret);
+extern errcode_t ea_refcount_decrement(ext2_refcount_t refcount,
+				       ea_key_t ea_key, ea_value_t *ret);
+extern errcode_t ea_refcount_store(ext2_refcount_t refcount, ea_key_t ea_key,
+				   ea_value_t count);
+extern size_t ext2fs_get_refcount_size(ext2_refcount_t refcount);
+extern void ea_refcount_intr_begin(ext2_refcount_t refcount);
+extern ea_key_t ea_refcount_intr_next(ext2_refcount_t refcount,
+				      ea_value_t *ret);
+
+/* ehandler.c */
+extern const char *ehandler_operation(const char *op);
+extern void ehandler_init(io_channel channel);
+
+/* encrypted_files.c */
+
+struct problem_context;
+int add_encrypted_file(e2fsck_t ctx, struct problem_context *pctx);
+
+#define NO_ENCRYPTION_POLICY		((__u32)-1)
+#define CORRUPT_ENCRYPTION_POLICY	((__u32)-2)
+#define UNRECOGNIZED_ENCRYPTION_POLICY	((__u32)-3)
+__u32 find_encryption_policy(e2fsck_t ctx, ext2_ino_t ino);
+
+void destroy_encryption_policy_map(e2fsck_t ctx);
+void destroy_encrypted_file_info(e2fsck_t ctx);
+
+/* extents.c */
+errcode_t e2fsck_rebuild_extents_later(e2fsck_t ctx, ext2_ino_t ino);
+int e2fsck_ino_will_be_rebuilt(e2fsck_t ctx, ext2_ino_t ino);
+void e2fsck_pass1e(e2fsck_t ctx);
+errcode_t e2fsck_check_rebuild_extents(e2fsck_t ctx, ext2_ino_t ino,
+				       struct ext2_inode *inode,
+				       struct problem_context *pctx);
+errcode_t e2fsck_should_rebuild_extents(e2fsck_t ctx,
+					struct problem_context *pctx,
+					struct extent_tree_info *eti,
+					struct ext2_extent_info *info);
+errcode_t e2fsck_read_extents(e2fsck_t ctx, struct extent_list *extents);
+errcode_t e2fsck_rewrite_extent_tree(e2fsck_t ctx,
+				     struct extent_list *extents);
+
+/* journal.c */
+extern errcode_t e2fsck_check_ext3_journal(e2fsck_t ctx);
+extern errcode_t 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);
+
+/* logfile.c */
+extern void set_up_logging(e2fsck_t ctx);
+
+/* quota.c */
+extern void e2fsck_hide_quota(e2fsck_t ctx);
+extern void e2fsck_validate_quota_inodes(e2fsck_t ctx);
+
+/* pass1.c */
+extern errcode_t e2fsck_setup_icount(e2fsck_t ctx, const char *icount_name,
+				     int flags, ext2_icount_t hint,
+				     ext2_icount_t *ret);
+extern void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts);
+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);
+extern void e2fsck_intercept_block_allocations(e2fsck_t ctx);
+
+/* 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);
+
+/* readahead.c */
+#define E2FSCK_READA_SUPER	(0x01)
+#define E2FSCK_READA_GDT	(0x02)
+#define E2FSCK_READA_BBITMAP	(0x04)
+#define E2FSCK_READA_IBITMAP	(0x08)
+#define E2FSCK_READA_ITABLE	(0x10)
+#define E2FSCK_READA_ALL_FLAGS	(0x1F)
+errcode_t e2fsck_readahead(ext2_filsys fs, int flags, dgrp_t start,
+			   dgrp_t ngroups);
+#define E2FSCK_RA_DBLIST_IGNORE_BLOCKCNT	(0x01)
+#define E2FSCK_RA_DBLIST_ALL_FLAGS		(0x01)
+errcode_t e2fsck_readahead_dblist(ext2_filsys fs, int flags,
+				  ext2_dblist dblist,
+				  unsigned long long start,
+				  unsigned long long count);
+int e2fsck_can_readahead(ext2_filsys fs);
+unsigned long long e2fsck_guess_readahead(ext2_filsys fs);
+
+/* 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 */
+void e2fsck_rehash_dir_later(e2fsck_t ctx, ext2_ino_t ino);
+int e2fsck_dir_will_be_rehashed(e2fsck_t ctx, ext2_ino_t ino);
+errcode_t e2fsck_rehash_dir(e2fsck_t ctx, ext2_ino_t ino,
+			    struct problem_context *pctx);
+void e2fsck_rehash_directories(e2fsck_t ctx);
+
+/* sigcatcher.c */
+void sigcatcher_setup(void);
+
+/* super.c */
+void check_super_block(e2fsck_t ctx);
+int check_backup_super_block(e2fsck_t ctx);
+void check_resize_inode(e2fsck_t ctx);
+int check_init_orphan_file(e2fsck_t ctx);
+
+/* util.c */
+extern void *e2fsck_allocate_memory(e2fsck_t ctx, unsigned long size,
+				    const char *description);
+extern int ask(e2fsck_t ctx, const char * string, int def);
+extern int ask_yn(e2fsck_t ctx, const char * string, int def);
+extern void fatal_error(e2fsck_t ctx, const char * fmt_string);
+extern void log_out(e2fsck_t ctx, const char *fmt, ...)
+	E2FSCK_ATTR((format(printf, 2, 3)));
+extern void log_err(e2fsck_t ctx, const char *fmt, ...)
+	E2FSCK_ATTR((format(printf, 2, 3)));
+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, size_t len);
+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(e2fsck_t ctx,
+				 const char *desc,
+				 struct resource_track *track,
+				 io_channel channel);
+extern void init_resource_track(struct resource_track *track,
+				io_channel channel);
+#else
+#define print_resource_track(ctx, desc, track, channel) do { } while (0)
+#define init_resource_track(track, channel) do { } while (0)
+#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 blk64_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);
+void dump_mmp_msg(struct mmp_struct *mmp, const char *fmt, ...)
+	E2FSCK_ATTR((format(printf, 2, 3)));
+errcode_t e2fsck_mmp_update(ext2_filsys fs);
+
+extern void e2fsck_set_bitmap_type(ext2_filsys fs,
+				   unsigned int default_type,
+				   const char *profile_name,
+				   unsigned int *old_type);
+extern errcode_t e2fsck_allocate_inode_bitmap(ext2_filsys fs,
+					      const char *descr,
+					      int default_type,
+					      const char *profile_name,
+					      ext2fs_inode_bitmap *ret);
+extern errcode_t e2fsck_allocate_block_bitmap(ext2_filsys fs,
+					      const char *descr,
+					      int default_type,
+					      const char *profile_name,
+					      ext2fs_block_bitmap *ret);
+extern errcode_t e2fsck_allocate_subcluster_bitmap(ext2_filsys fs,
+						   const char *descr,
+						   int default_type,
+						   const char *profile_name,
+						   ext2fs_block_bitmap *ret);
+unsigned long long get_memory_size(void);
+
+/* 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);
+
+#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
+
+#endif /* _E2FSCK_H */