353 lines
8.2 KiB
C
353 lines
8.2 KiB
C
#include <sys/types.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <time.h>
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#include <fcntl.h>
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#include <ctype.h>
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#include <setjmp.h>
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#include <errno.h>
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#include <getopt.h>
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#include <limits.h>
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#include <stddef.h>
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#include <assert.h>
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#include <signal.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <sys/resource.h>
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <sys/ioctl.h>
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#include <malloc.h>
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#include <termios.h>
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#include <mntent.h>
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#include <dirent.h>
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#include "ext2fs/kernel-list.h"
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#include <sys/types.h>
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#include <linux/types.h>
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/*
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* Now pull in the real linux/jfs.h definitions.
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*/
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#include "ext2fs/kernel-jbd.h"
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#include "fsck.h"
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#include "ext2fs/ext2_fs.h"
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#include "blkid/blkid.h"
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#include "ext2fs/ext2_ext_attr.h"
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#include "uuid/uuid.h"
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#include "busybox.h"
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#ifdef HAVE_CONIO_H
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#undef HAVE_TERMIOS_H
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#include <conio.h>
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#define read_a_char() getch()
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#else
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#ifdef HAVE_TERMIOS_H
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#include <termios.h>
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#endif
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#endif
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/*
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* The last ext2fs revision level that this version of e2fsck is able to
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* support
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*/
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#define E2FSCK_CURRENT_REV 1
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/* Used by the region allocation code */
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typedef __u32 region_addr_t;
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typedef struct region_struct *region_t;
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struct dx_dirblock_info {
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int type;
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blk_t phys;
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int flags;
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blk_t parent;
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ext2_dirhash_t min_hash;
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ext2_dirhash_t max_hash;
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ext2_dirhash_t node_min_hash;
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ext2_dirhash_t node_max_hash;
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};
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/*
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These defines are used in the type field of dx_dirblock_info
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*/
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#define DX_DIRBLOCK_ROOT 1
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#define DX_DIRBLOCK_LEAF 2
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#define DX_DIRBLOCK_NODE 3
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#define DX_DIRBLOCK_CORRUPT 4
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#define DX_DIRBLOCK_CLEARED 8
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/*
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The following defines are used in the 'flags' field of a dx_dirblock_info
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*/
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#define DX_FLAG_REFERENCED 1
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#define DX_FLAG_DUP_REF 2
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#define DX_FLAG_FIRST 4
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#define DX_FLAG_LAST 8
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#ifdef RESOURCE_TRACK
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/*
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* This structure is used for keeping track of how much resources have
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* been used for a particular pass of e2fsck.
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*/
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struct resource_track {
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struct timeval time_start;
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struct timeval user_start;
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struct timeval system_start;
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void *brk_start;
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};
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#endif
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/*
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* E2fsck options
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*/
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#define E2F_OPT_READONLY 0x0001
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#define E2F_OPT_PREEN 0x0002
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#define E2F_OPT_YES 0x0004
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#define E2F_OPT_NO 0x0008
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#define E2F_OPT_TIME 0x0010
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#define E2F_OPT_TIME2 0x0020
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#define E2F_OPT_CHECKBLOCKS 0x0040
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#define E2F_OPT_DEBUG 0x0080
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#define E2F_OPT_FORCE 0x0100
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#define E2F_OPT_WRITECHECK 0x0200
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#define E2F_OPT_COMPRESS_DIRS 0x0400
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/*
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* E2fsck flags
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*/
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#define E2F_FLAG_ABORT 0x0001 /* Abort signaled */
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#define E2F_FLAG_CANCEL 0x0002 /* Cancel signaled */
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#define E2F_FLAG_SIGNAL_MASK 0x0003
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#define E2F_FLAG_RESTART 0x0004 /* Restart signaled */
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#define E2F_FLAG_SETJMP_OK 0x0010 /* Setjmp valid for abort */
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#define E2F_FLAG_PROG_BAR 0x0020 /* Progress bar on screen */
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#define E2F_FLAG_PROG_SUPPRESS 0x0040 /* Progress suspended */
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#define E2F_FLAG_JOURNAL_INODE 0x0080 /* Create a new ext3 journal inode */
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#define E2F_FLAG_SB_SPECIFIED 0x0100 /* The superblock was explicitly
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* specified by the user */
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#define E2F_FLAG_RESTARTED 0x0200 /* E2fsck has been restarted */
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#define E2F_FLAG_RESIZE_INODE 0x0400 /* Request to recreate resize inode */
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/*
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* Defines for indicating the e2fsck pass number
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*/
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#define E2F_PASS_1 1
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#define E2F_PASS_2 2
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#define E2F_PASS_3 3
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#define E2F_PASS_4 4
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#define E2F_PASS_5 5
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#define E2F_PASS_1B 6
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/*Don't know where these come from*/
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#define READ 0
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#define WRITE 1
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#define KERN_ERR ""
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#define KERN_DEBUG ""
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#define cpu_to_be32(n) htonl(n)
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#define be32_to_cpu(n) ntohl(n)
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/*
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* The directory information structure; stores directory information
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* collected in earlier passes, to avoid disk i/o in fetching the
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* directory information.
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*/
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struct dir_info {
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ext2_ino_t ino; /* Inode number */
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ext2_ino_t dotdot; /* Parent according to '..' */
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ext2_ino_t parent; /* Parent according to treewalk */
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};
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/*
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* The indexed directory information structure; stores information for
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* directories which contain a hash tree index.
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*/
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struct dx_dir_info {
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ext2_ino_t ino; /* Inode number */
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int numblocks; /* number of blocks */
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int hashversion;
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short depth; /* depth of tree */
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struct dx_dirblock_info *dx_block; /* Array of size numblocks */
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};
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/*
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* Define the extended attribute refcount structure
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*/
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typedef struct ea_refcount *ext2_refcount_t;
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struct e2fsck_struct {
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ext2_filsys fs;
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const char *program_name;
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char *filesystem_name;
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char *device_name;
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char *io_options;
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int flags; /* E2fsck internal flags */
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int options;
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blk_t use_superblock; /* sb requested by user */
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blk_t superblock; /* sb used to open fs */
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int blocksize; /* blocksize */
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blk_t num_blocks; /* Total number of blocks */
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int mount_flags;
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blkid_cache blkid; /* blkid cache */
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jmp_buf abort_loc;
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unsigned long abort_code;
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int (*progress)(e2fsck_t ctx, int pass, unsigned long cur,
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unsigned long max);
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ext2fs_inode_bitmap inode_used_map; /* Inodes which are in use */
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ext2fs_inode_bitmap inode_bad_map; /* Inodes which are bad somehow */
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ext2fs_inode_bitmap inode_dir_map; /* Inodes which are directories */
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ext2fs_inode_bitmap inode_bb_map; /* Inodes which are in bad blocks */
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ext2fs_inode_bitmap inode_imagic_map; /* AFS inodes */
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ext2fs_inode_bitmap inode_reg_map; /* Inodes which are regular files*/
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ext2fs_block_bitmap block_found_map; /* Blocks which are in use */
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ext2fs_block_bitmap block_dup_map; /* Blks referenced more than once */
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ext2fs_block_bitmap block_ea_map; /* Blocks which are used by EA's */
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/*
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* Inode count arrays
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*/
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ext2_icount_t inode_count;
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ext2_icount_t inode_link_info;
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ext2_refcount_t refcount;
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ext2_refcount_t refcount_extra;
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/*
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* Array of flags indicating whether an inode bitmap, block
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* bitmap, or inode table is invalid
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*/
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int *invalid_inode_bitmap_flag;
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int *invalid_block_bitmap_flag;
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int *invalid_inode_table_flag;
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int invalid_bitmaps; /* There are invalid bitmaps/itable */
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/*
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* Block buffer
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*/
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char *block_buf;
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/*
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* For pass1_check_directory and pass1_get_blocks
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*/
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ext2_ino_t stashed_ino;
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struct ext2_inode *stashed_inode;
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/*
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* Location of the lost and found directory
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*/
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ext2_ino_t lost_and_found;
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int bad_lost_and_found;
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/*
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* Directory information
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*/
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int dir_info_count;
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int dir_info_size;
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struct dir_info *dir_info;
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/*
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* Indexed directory information
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*/
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int dx_dir_info_count;
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int dx_dir_info_size;
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struct dx_dir_info *dx_dir_info;
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/*
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* Directories to hash
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*/
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ext2_u32_list dirs_to_hash;
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/*
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* Tuning parameters
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*/
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int process_inode_size;
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int inode_buffer_blocks;
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/*
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* ext3 journal support
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*/
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io_channel journal_io;
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char *journal_name;
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#ifdef RESOURCE_TRACK
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/*
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* For timing purposes
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*/
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struct resource_track global_rtrack;
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#endif
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/*
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* How we display the progress update (for unix)
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*/
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int progress_fd;
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int progress_pos;
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int progress_last_percent;
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unsigned int progress_last_time;
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int interactive; /* Are we connected directly to a tty? */
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char start_meta[2], stop_meta[2];
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/* File counts */
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int fs_directory_count;
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int fs_regular_count;
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int fs_blockdev_count;
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int fs_chardev_count;
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int fs_links_count;
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int fs_symlinks_count;
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int fs_fast_symlinks_count;
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int fs_fifo_count;
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int fs_total_count;
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int fs_badblocks_count;
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int fs_sockets_count;
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int fs_ind_count;
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int fs_dind_count;
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int fs_tind_count;
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int fs_fragmented;
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int large_files;
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int fs_ext_attr_inodes;
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int fs_ext_attr_blocks;
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int ext_attr_ver;
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/*
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* For the use of callers of the e2fsck functions; not used by
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* e2fsck functions themselves.
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*/
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void *priv_data;
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};
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static inline int tid_gt(tid_t x, tid_t y)
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{
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int difference = (x - y);
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return (difference > 0);
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}
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static inline int tid_geq(tid_t x, tid_t y)
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{
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int difference = (x - y);
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return (difference >= 0);
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}
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