e2fsck.h

busybox最新版的源码:学习和应用的好东东,多的不说了,大家看后再说吧

/* vi: set sw=4 ts=4: */
#include <sys/types.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/stat.h>
#include <sys/resource.h>
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/ioctl.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"
#include "libbb.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


/*
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

/*
 * 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_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 */


/*Don't know where these come from*/
#define READ 0
#define WRITE 1
#define cpu_to_be32(n) htonl(n)
#define be32_to_cpu(n) ntohl(n)

/*
 * We define a set of "latch groups"; these are problems which are
 * handled as a set.  The user answers once for a particular latch
 * group.
 */
#define PR_LATCH_MASK         0x0ff0 /* Latch mask */
#define PR_LATCH_BLOCK        0x0010 /* Latch for illegal blocks (pass 1) */
#define PR_LATCH_BBLOCK       0x0020 /* Latch for bad block inode blocks (pass 1) */
#define PR_LATCH_IBITMAP      0x0030 /* Latch for pass 5 inode bitmap proc. */
#define PR_LATCH_BBITMAP      0x0040 /* Latch for pass 5 inode bitmap proc. */
#define PR_LATCH_RELOC        0x0050 /* Latch for superblock relocate hint */
#define PR_LATCH_DBLOCK       0x0060 /* Latch for pass 1b dup block headers */
#define PR_LATCH_LOW_DTIME    0x0070 /* Latch for pass1 orphaned list refugees */
#define PR_LATCH_TOOBIG       0x0080 /* Latch for file to big errors */
#define PR_LATCH_OPTIMIZE_DIR 0x0090 /* Latch for optimize directories */

#define PR_LATCH(x)     ((((x) & PR_LATCH_MASK) >> 4) - 1)

/*
 * Latch group descriptor flags
 */
#define PRL_YES         0x0001  /* Answer yes */
#define PRL_NO          0x0002  /* Answer no */
#define PRL_LATCHED     0x0004  /* The latch group is latched */
#define PRL_SUPPRESS    0x0008  /* Suppress all latch group questions */

#define PRL_VARIABLE    0x000f  /* All the flags that need to be reset */

/*
 * Pre-Pass 1 errors
 */

#define PR_0_BB_NOT_GROUP       0x000001  /* Block bitmap not in group */
#define PR_0_IB_NOT_GROUP       0x000002  /* Inode bitmap not in group */
#define PR_0_ITABLE_NOT_GROUP   0x000003  /* Inode table not in group */
#define PR_0_SB_CORRUPT         0x000004  /* Superblock corrupt */
#define PR_0_FS_SIZE_WRONG      0x000005  /* Filesystem size is wrong */
#define PR_0_NO_FRAGMENTS       0x000006  /* Fragments not supported */
#define PR_0_BLOCKS_PER_GROUP   0x000007  /* Bad blocks_per_group */
#define PR_0_FIRST_DATA_BLOCK   0x000008  /* Bad first_data_block */
#define PR_0_ADD_UUID           0x000009  /* Adding UUID to filesystem */
#define PR_0_RELOCATE_HINT      0x00000A  /* Relocate hint */
#define PR_0_MISC_CORRUPT_SUPER 0x00000B  /* Miscellaneous superblock corruption */
#define PR_0_GETSIZE_ERROR      0x00000C  /* Error determing physical device size of filesystem */
#define PR_0_INODE_COUNT_WRONG  0x00000D  /* Inode count in the superblock incorrect */
#define PR_0_HURD_CLEAR_FILETYPE 0x00000E /* The Hurd does not support the filetype feature */
#define PR_0_JOURNAL_BAD_INODE  0x00000F  /* The Hurd does not support the filetype feature */
#define PR_0_JOURNAL_UNSUPP_MULTIFS 0x000010 /* The external journal has multiple filesystems (which we can't handle yet) */
#define PR_0_CANT_FIND_JOURNAL  0x000011  /* Can't find external journal */
#define PR_0_EXT_JOURNAL_BAD_SUPER 0x000012/* External journal has bad superblock */
#define PR_0_JOURNAL_BAD_UUID   0x000013  /* Superblock has a bad journal UUID */
#define PR_0_JOURNAL_UNSUPP_SUPER 0x000014 /* Journal has an unknown superblock type */
#define PR_0_JOURNAL_BAD_SUPER  0x000015  /* Journal superblock is corrupt */
#define PR_0_JOURNAL_HAS_JOURNAL 0x000016 /* Journal superblock is corrupt */
#define PR_0_JOURNAL_RECOVER_SET 0x000017 /* Superblock has recovery flag set but no journal */
#define PR_0_JOURNAL_RECOVERY_CLEAR 0x000018 /* Journal has data, but recovery flag is clear */
#define PR_0_JOURNAL_RESET_JOURNAL 0x000019 /* Ask if we should clear the journal */
#define PR_0_FS_REV_LEVEL       0x00001A  /* Filesystem revision is 0, but feature flags are set */
#define PR_0_ORPHAN_CLEAR_INODE             0x000020 /* Clearing orphan inode */
#define PR_0_ORPHAN_ILLEGAL_BLOCK_NUM       0x000021 /* Illegal block found in orphaned inode */
#define PR_0_ORPHAN_ALREADY_CLEARED_BLOCK   0x000022 /* Already cleared block found in orphaned inode */
#define PR_0_ORPHAN_ILLEGAL_HEAD_INODE      0x000023 /* Illegal orphan inode in superblock */
#define PR_0_ORPHAN_ILLEGAL_INODE           0x000024 /* Illegal inode in orphaned inode list */
#define PR_0_JOURNAL_UNSUPP_ROCOMPAT        0x000025 /* Journal has unsupported read-only feature - abort */
#define PR_0_JOURNAL_UNSUPP_INCOMPAT        0x000026 /* Journal has unsupported incompatible feature - abort */
#define PR_0_JOURNAL_UNSUPP_VERSION         0x000027 /* Journal has unsupported version number */
#define PR_0_MOVE_JOURNAL                   0x000028 /* Moving journal to hidden file */
#define PR_0_ERR_MOVE_JOURNAL               0x000029 /* Error moving journal */
#define PR_0_CLEAR_V2_JOURNAL               0x00002A /* Clearing V2 journal superblock */
#define PR_0_JOURNAL_RUN                    0x00002B /* Run journal anyway */
#define PR_0_JOURNAL_RUN_DEFAULT            0x00002C /* Run journal anyway by default */
#define PR_0_BACKUP_JNL                     0x00002D /* Backup journal inode blocks */
#define PR_0_NONZERO_RESERVED_GDT_BLOCKS    0x00002E /* Reserved blocks w/o resize_inode */
#define PR_0_CLEAR_RESIZE_INODE             0x00002F /* Resize_inode not enabled, but resize inode is non-zero */
#define PR_0_RESIZE_INODE_INVALID           0x000030 /* Resize inode invalid */

/*
 * Pass 1 errors
 */

#define PR_1_PASS_HEADER              0x010000  /* Pass 1: Checking inodes, blocks, and sizes */
#define PR_1_ROOT_NO_DIR              0x010001  /* Root directory is not an inode */
#define PR_1_ROOT_DTIME               0x010002  /* Root directory has dtime set */