ReactOS 0.4.16-dev-1946-g52006dd
Classes | Macros | Typedefs | Functions
Mke2fs.h File Reference
#include <ndk/kefuncs.h>
#include <ndk/rtlfuncs.h>
#include "ext2_fs.h"
Include dependency graph for Mke2fs.h:
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Go to the source code of this file.

Classes

struct  _GUID
 
struct  _ext2fs_bitmap
 
struct  ext2_struct_badblocks_list
 
struct  _ext2_filesys
 
struct  _EXT2_BDL
 

Macros

#define NTOS_MODE_USER
 
#define SECTOR_SIZE   (Ext2Sys->DiskGeometry.BytesPerSector)
 
#define GUID_DEFINED
 
#define UUID_DEFINED
 
#define uuid_t   UUID
 
#define bool   BOOLEAN
 
#define true   TRUE
 
#define false   FALSE
 
#define EXT2_CHECK_MAGIC(struct, code)    if ((struct)->magic != (code)) return (code)
 
#define EXT2_SF_CHK_BADBLOCKS   0x0001
 
#define EXT2_SF_BAD_INODE_BLK   0x0002
 
#define EXT2_SF_BAD_EXTRA_BYTES   0x0004
 
#define EXT2_SF_SKIP_MISSING_ITABLE   0x0008
 
#define EXT2_MF_MOUNTED   1
 
#define EXT2_MF_ISROOT   2
 
#define EXT2_MF_READONLY   4
 
#define EXT2_MF_SWAP   8
 
#define LINUX_S_IFMT   00170000
 
#define LINUX_S_IFSOCK   0140000
 
#define LINUX_S_IFLNK   0120000
 
#define LINUX_S_IFREG   0100000
 
#define LINUX_S_IFBLK   0060000
 
#define LINUX_S_IFDIR   0040000
 
#define LINUX_S_IFCHR   0020000
 
#define LINUX_S_IFIFO   0010000
 
#define LINUX_S_ISUID   0004000
 
#define LINUX_S_ISGID   0002000
 
#define LINUX_S_ISVTX   0001000
 
#define LINUX_S_IRWXU   00700
 
#define LINUX_S_IRUSR   00400
 
#define LINUX_S_IWUSR   00200
 
#define LINUX_S_IXUSR   00100
 
#define LINUX_S_IRWXG   00070
 
#define LINUX_S_IRGRP   00040
 
#define LINUX_S_IWGRP   00020
 
#define LINUX_S_IXGRP   00010
 
#define LINUX_S_IRWXO   00007
 
#define LINUX_S_IROTH   00004
 
#define LINUX_S_IWOTH   00002
 
#define LINUX_S_IXOTH   00001
 
#define LINUX_S_ISLNK(m)   (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
 
#define LINUX_S_ISREG(m)   (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
 
#define LINUX_S_ISDIR(m)   (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
 
#define LINUX_S_ISCHR(m)   (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
 
#define LINUX_S_ISBLK(m)   (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
 
#define LINUX_S_ISFIFO(m)   (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
 
#define LINUX_S_ISSOCK(m)   (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
 
#define EXT2_FIRST_INODE(s)   EXT2_FIRST_INO(s)
 
#define SUPERBLOCK_OFFSET   1024
 
#define SUPERBLOCK_SIZE   1024
 
#define ext2_mark_block_bitmap   ext2_mark_bitmap
 
#define ext2_mark_inode_bitmap   ext2_mark_bitmap
 
#define ext2_unmark_block_bitmap   ext2_unmark_bitmap
 
#define ext2_unmark_inode_bitmap   ext2_unmark_bitmap
 

Typedefs

typedef struct _GUID GUID
 
typedef GUID UUID
 
typedef struct _ext2fs_bitmap EXT2_BITMAP
 
typedef struct _ext2fs_bitmap * PEXT2_BITMAP
 
typedef EXT2_BITMAP EXT2_GENERIC_BITMAP
 
typedef EXT2_BITMAP * PEXT2_GENERIC_BITMAP
 
typedef EXT2_BITMAP EXT2_INODE_BITMAP
 
typedef EXT2_BITMAP * PEXT2_INODE_BITMAP
 
typedef EXT2_BITMAP EXT2_BLOCK_BITMAP
 
typedef EXT2_BITMAP * PEXT2_BLOCK_BITMAP
 
typedef struct ext2_acl_entry EXT2_ACL_ENTRY
 
typedef struct ext2_acl_entry * PEXT2_ACL_ENTRY
 
typedef struct ext2_acl_header EXT2_ACL_HEADER
 
typedef struct ext2_acl_header * PEXT2_ACL_HEADER
 
typedef struct ext2_dir_entry EXT2_DIR_ENTRY
 
typedef struct ext2_dir_entry * PEXT2_DIR_ENTRY
 
typedef struct ext2_dir_entry_2 EXT2_DIR_ENTRY2
 
typedef struct ext2_dir_entry_2 * PEXT2_DIR_ENTRY2
 
typedef struct ext2_dx_countlimit EXT2_DX_CL
 
typedef struct ext2_dx_countlimit * PEXT2_DX_CL
 
typedef struct ext2_dx_entry EXT2_DX_ENTRY
 
typedef struct ext2_dx_entry * PEXT2_DX_ENTRY
 
typedef struct ext2_dx_root_info EXT2_DX_RI
 
typedef struct ext2_dx_root_info * PEXT2_DX_RI
 
typedef struct ext2_inode EXT2_INODE
 
typedef struct ext2_inode * PEXT2_INODE
 
typedef struct ext2_group_desc EXT2_GROUP_DESC
 
typedef struct ext2_group_desc * PEXT2_GROUP_DESC
 
typedef struct ext2_super_block EXT2_SUPER_BLOCK
 
typedef struct ext2_super_block * PEXT2_SUPER_BLOCK
 
typedef struct ext2_struct_badblocks_list EXT2_BADBLK_LIST
 
typedef struct ext2_struct_badblocks_list * PEXT2_BADBLK_LIST
 
typedef struct _ext2_filesys EXT2_FILESYS
 
typedef struct _ext2_filesys * PEXT2_FILESYS
 
typedef struct _EXT2_BDL EXT2_BDL
 
typedef struct _EXT2_BDL * PEXT2_BDL
 

Functions

bool create_bad_block_inode (PEXT2_FILESYS fs, PEXT2_BADBLK_LIST bb_list)
 
bool ext2_set_bit (int nr, void *addr)
 
bool ext2_clear_bit (int nr, void *addr)
 
bool ext2_test_bit (int nr, void *addr)
 
bool ext2_mark_bitmap (PEXT2_BITMAP bitmap, ULONG bitno)
 
bool ext2_unmark_bitmap (PEXT2_BITMAP bitmap, ULONG bitno)
 
bool ext2_test_block_bitmap (PEXT2_BLOCK_BITMAP bitmap, ULONG block)
 
bool ext2_test_block_bitmap_range (PEXT2_BLOCK_BITMAP bitmap, ULONG block, int num)
 
bool ext2_test_inode_bitmap (PEXT2_BLOCK_BITMAP bitmap, ULONG inode)
 
bool ext2_allocate_block_bitmap (PEXT2_FILESYS pExt2Sys)
 
bool ext2_allocate_inode_bitmap (PEXT2_FILESYS pExt2Sys)
 
void ext2_free_inode_bitmap (PEXT2_FILESYS pExt2Sys)
 
void ext2_free_block_bitmap (PEXT2_FILESYS pExt2Sys)
 
bool ext2_write_block_bitmap (PEXT2_FILESYS fs)
 
bool ext2_write_inode_bitmap (PEXT2_FILESYS fs)
 
bool ext2_write_bitmaps (PEXT2_FILESYS fs)
 
bool ext2_read_inode_bitmap (PEXT2_FILESYS fs)
 
bool ext2_read_block_bitmap (PEXT2_FILESYS fs)
 
bool ext2_read_bitmaps (PEXT2_FILESYS fs)
 
NTSTATUS Ext2OpenDevice (PEXT2_FILESYS Ext2Sys, PUNICODE_STRING DeviceName)
 
NTSTATUS Ext2CloseDevice (PEXT2_FILESYS Ext2Sys)
 
NTSTATUS Ext2ReadDisk (PEXT2_FILESYS Ext2Sys, ULONGLONG Offset, ULONG Length, PVOID Buffer)
 
NTSTATUS Ext2WriteDisk (PEXT2_FILESYS Ext2Sys, ULONGLONG Offset, ULONG Length, PVOID Buffer)
 
NTSTATUS Ext2GetMediaInfo (PEXT2_FILESYS Ext2Sys)
 
NTSTATUS Ext2LockVolume (PEXT2_FILESYS Ext2Sys)
 
NTSTATUS Ext2UnLockVolume (PEXT2_FILESYS Ext2Sys)
 
NTSTATUS Ext2DisMountVolume (PEXT2_FILESYS Ext2Sys)
 
bool ext2_allocate_group_desc (PEXT2_FILESYS pExt2Sys)
 
void ext2_free_group_desc (PEXT2_FILESYS pExt2Sys)
 
bool ext2_bg_has_super (PEXT2_SUPER_BLOCK pExt2Sb, int group_block)
 
bool ext2_get_inode_lba (PEXT2_FILESYS pExt2Sys, ULONG no, LONGLONG *offset)
 
bool ext2_load_inode (PEXT2_FILESYS pExt2Sys, ULONG no, PEXT2_INODE pInode)
 
bool ext2_save_inode (PEXT2_FILESYS pExt2Sys, ULONG no, PEXT2_INODE pInode)
 
bool ext2_new_inode (PEXT2_FILESYS fs, ULONG dir, int mode, PEXT2_INODE_BITMAP map, ULONG *ret)
 
bool ext2_expand_inode (PEXT2_FILESYS pExt2Sys, PEXT2_INODE, ULONG newBlk)
 
bool ext2_read_inode (PEXT2_FILESYS pExt2Sys, ULONG ino, ULONG offset, PVOID Buffer, ULONG size, PULONG dwReturn)
 
bool ext2_write_inode (PEXT2_FILESYS pExt2Sys, ULONG ino, ULONG offset, PVOID Buffer, ULONG size, PULONG dwReturn)
 
bool ext2_add_entry (PEXT2_FILESYS pExt2Sys, ULONG parent, ULONG inode, int filetype, char *name)
 
bool ext2_reserve_inodes (PEXT2_FILESYS fs)
 
int ext2_group_of_ino (PEXT2_FILESYS fs, ULONG ino)
 
int ext2_group_of_blk (PEXT2_FILESYS fs, ULONG blk)
 
void ext2_inode_alloc_stats2 (PEXT2_FILESYS fs, ULONG ino, int inuse, int isdir)
 
void ext2_inode_alloc_stats (PEXT2_FILESYS fs, ULONG ino, int inuse)
 
void ext2_block_alloc_stats (PEXT2_FILESYS fs, ULONG blk, int inuse)
 
bool ext2_allocate_tables (PEXT2_FILESYS pExt2Sys)
 
bool ext2_allocate_group_table (PEXT2_FILESYS fs, ULONG group, PEXT2_BLOCK_BITMAP bmap)
 
bool ext2_get_free_blocks (PEXT2_FILESYS fs, ULONG start, ULONG finish, int num, PEXT2_BLOCK_BITMAP map, ULONG *ret)
 
bool write_inode_tables (PEXT2_FILESYS fs)
 
bool ext2_new_block (PEXT2_FILESYS fs, ULONG goal, PEXT2_BLOCK_BITMAP map, ULONG *ret)
 
bool ext2_alloc_block (PEXT2_FILESYS fs, ULONG goal, ULONG *ret)
 
bool ext2_new_dir_block (PEXT2_FILESYS fs, ULONG dir_ino, ULONG parent_ino, char **block)
 
bool ext2_write_block (PEXT2_FILESYS fs, ULONG block, void *inbuf)
 
bool ext2_read_block (PEXT2_FILESYS fs, ULONG block, void *inbuf)
 
bool parase_cmd (int argc, char *argv[], PEXT2_FILESYS pExt2Sys)
 
bool zero_blocks (PEXT2_FILESYS fs, ULONG blk, ULONG num, ULONG *ret_blk, ULONG *ret_count)
 
ULONG Ext2DataBlocks (PEXT2_FILESYS Ext2Sys, ULONG TotalBlocks)
 
ULONG Ext2TotalBlocks (PEXT2_FILESYS Ext2Sys, ULONG DataBlocks)
 
void ext2_print_super (PEXT2_SUPER_BLOCK pExt2Sb)
 
bool ext2_initialize_sb (PEXT2_FILESYS pExt2Sys)
 
LONGLONG ext2_nt_time (ULONG i_time)
 
ULONG ext2_unix_time (LONGLONG n_time)
 
void uuid_generate (__u8 *uuid)
 

Macro Definition Documentation

◆ bool

#define bool   BOOLEAN

Definition at line 43 of file Mke2fs.h.

◆ EXT2_CHECK_MAGIC

#define EXT2_CHECK_MAGIC (   struct,
  code 
)     if ((struct)->magic != (code)) return (code)

Definition at line 55 of file Mke2fs.h.

◆ EXT2_FIRST_INODE

#define EXT2_FIRST_INODE (   s)    EXT2_FIRST_INO(s)

Definition at line 116 of file Mke2fs.h.

◆ ext2_mark_block_bitmap

#define ext2_mark_block_bitmap   ext2_mark_bitmap

Definition at line 215 of file Mke2fs.h.

◆ ext2_mark_inode_bitmap

#define ext2_mark_inode_bitmap   ext2_mark_bitmap

Definition at line 216 of file Mke2fs.h.

◆ EXT2_MF_ISROOT

#define EXT2_MF_ISROOT   2

Definition at line 70 of file Mke2fs.h.

◆ EXT2_MF_MOUNTED

#define EXT2_MF_MOUNTED   1

Definition at line 69 of file Mke2fs.h.

◆ EXT2_MF_READONLY

#define EXT2_MF_READONLY   4

Definition at line 71 of file Mke2fs.h.

◆ EXT2_MF_SWAP

#define EXT2_MF_SWAP   8

Definition at line 72 of file Mke2fs.h.

◆ EXT2_SF_BAD_EXTRA_BYTES

#define EXT2_SF_BAD_EXTRA_BYTES   0x0004

Definition at line 63 of file Mke2fs.h.

◆ EXT2_SF_BAD_INODE_BLK

#define EXT2_SF_BAD_INODE_BLK   0x0002

Definition at line 62 of file Mke2fs.h.

◆ EXT2_SF_CHK_BADBLOCKS

#define EXT2_SF_CHK_BADBLOCKS   0x0001

Definition at line 61 of file Mke2fs.h.

◆ EXT2_SF_SKIP_MISSING_ITABLE

#define EXT2_SF_SKIP_MISSING_ITABLE   0x0008

Definition at line 64 of file Mke2fs.h.

◆ ext2_unmark_block_bitmap

#define ext2_unmark_block_bitmap   ext2_unmark_bitmap

Definition at line 217 of file Mke2fs.h.

◆ ext2_unmark_inode_bitmap

#define ext2_unmark_inode_bitmap   ext2_unmark_bitmap

Definition at line 218 of file Mke2fs.h.

◆ false

#define false   FALSE

Definition at line 51 of file Mke2fs.h.

◆ GUID_DEFINED

#define GUID_DEFINED

Definition at line 24 of file Mke2fs.h.

◆ LINUX_S_IFBLK

#define LINUX_S_IFBLK   0060000

Definition at line 84 of file Mke2fs.h.

◆ LINUX_S_IFCHR

#define LINUX_S_IFCHR   0020000

Definition at line 86 of file Mke2fs.h.

◆ LINUX_S_IFDIR

#define LINUX_S_IFDIR   0040000

Definition at line 85 of file Mke2fs.h.

◆ LINUX_S_IFIFO

#define LINUX_S_IFIFO   0010000

Definition at line 87 of file Mke2fs.h.

◆ LINUX_S_IFLNK

#define LINUX_S_IFLNK   0120000

Definition at line 82 of file Mke2fs.h.

◆ LINUX_S_IFMT

#define LINUX_S_IFMT   00170000

Definition at line 80 of file Mke2fs.h.

◆ LINUX_S_IFREG

#define LINUX_S_IFREG   0100000

Definition at line 83 of file Mke2fs.h.

◆ LINUX_S_IFSOCK

#define LINUX_S_IFSOCK   0140000

Definition at line 81 of file Mke2fs.h.

◆ LINUX_S_IRGRP

#define LINUX_S_IRGRP   00040

Definition at line 98 of file Mke2fs.h.

◆ LINUX_S_IROTH

#define LINUX_S_IROTH   00004

Definition at line 103 of file Mke2fs.h.

◆ LINUX_S_IRUSR

#define LINUX_S_IRUSR   00400

Definition at line 93 of file Mke2fs.h.

◆ LINUX_S_IRWXG

#define LINUX_S_IRWXG   00070

Definition at line 97 of file Mke2fs.h.

◆ LINUX_S_IRWXO

#define LINUX_S_IRWXO   00007

Definition at line 102 of file Mke2fs.h.

◆ LINUX_S_IRWXU

#define LINUX_S_IRWXU   00700

Definition at line 92 of file Mke2fs.h.

◆ LINUX_S_ISBLK

#define LINUX_S_ISBLK (   m)    (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)

Definition at line 111 of file Mke2fs.h.

◆ LINUX_S_ISCHR

#define LINUX_S_ISCHR (   m)    (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)

Definition at line 110 of file Mke2fs.h.

◆ LINUX_S_ISDIR

#define LINUX_S_ISDIR (   m)    (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)

Definition at line 109 of file Mke2fs.h.

◆ LINUX_S_ISFIFO

#define LINUX_S_ISFIFO (   m)    (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)

Definition at line 112 of file Mke2fs.h.

◆ LINUX_S_ISGID

#define LINUX_S_ISGID   0002000

Definition at line 89 of file Mke2fs.h.

◆ LINUX_S_ISLNK

#define LINUX_S_ISLNK (   m)    (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)

Definition at line 107 of file Mke2fs.h.

◆ LINUX_S_ISREG

#define LINUX_S_ISREG (   m)    (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)

Definition at line 108 of file Mke2fs.h.

◆ LINUX_S_ISSOCK

#define LINUX_S_ISSOCK (   m)    (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)

Definition at line 113 of file Mke2fs.h.

◆ LINUX_S_ISUID

#define LINUX_S_ISUID   0004000

Definition at line 88 of file Mke2fs.h.

◆ LINUX_S_ISVTX

#define LINUX_S_ISVTX   0001000

Definition at line 90 of file Mke2fs.h.

◆ LINUX_S_IWGRP

#define LINUX_S_IWGRP   00020

Definition at line 99 of file Mke2fs.h.

◆ LINUX_S_IWOTH

#define LINUX_S_IWOTH   00002

Definition at line 104 of file Mke2fs.h.

◆ LINUX_S_IWUSR

#define LINUX_S_IWUSR   00200

Definition at line 94 of file Mke2fs.h.

◆ LINUX_S_IXGRP

#define LINUX_S_IXGRP   00010

Definition at line 100 of file Mke2fs.h.

◆ LINUX_S_IXOTH

#define LINUX_S_IXOTH   00001

Definition at line 105 of file Mke2fs.h.

◆ LINUX_S_IXUSR

#define LINUX_S_IXUSR   00100

Definition at line 95 of file Mke2fs.h.

◆ NTOS_MODE_USER

#define NTOS_MODE_USER

Definition at line 13 of file Mke2fs.h.

◆ SECTOR_SIZE

#define SECTOR_SIZE   (Ext2Sys->DiskGeometry.BytesPerSector)

Definition at line 21 of file Mke2fs.h.

◆ SUPERBLOCK_OFFSET

#define SUPERBLOCK_OFFSET   1024

Definition at line 204 of file Mke2fs.h.

◆ SUPERBLOCK_SIZE

#define SUPERBLOCK_SIZE   1024

Definition at line 205 of file Mke2fs.h.

◆ true

#define true   TRUE

Definition at line 47 of file Mke2fs.h.

◆ UUID_DEFINED

#define UUID_DEFINED

Definition at line 35 of file Mke2fs.h.

◆ uuid_t

#define uuid_t   UUID

Definition at line 38 of file Mke2fs.h.

Typedef Documentation

◆ EXT2_ACL_ENTRY

typedef struct ext2_acl_entry EXT2_ACL_ENTRY

Definition at line 128 of file Mke2fs.h.

◆ EXT2_ACL_HEADER

typedef struct ext2_acl_header EXT2_ACL_HEADER

Definition at line 129 of file Mke2fs.h.

◆ EXT2_BADBLK_LIST

typedef struct ext2_struct_badblocks_list EXT2_BADBLK_LIST

Definition at line 149 of file Mke2fs.h.

◆ EXT2_BDL

typedef struct _EXT2_BDL EXT2_BDL

◆ EXT2_BITMAP

typedef struct _ext2fs_bitmap EXT2_BITMAP

◆ EXT2_BLOCK_BITMAP

typedef EXT2_BITMAP EXT2_BLOCK_BITMAP

Definition at line 126 of file Mke2fs.h.

◆ EXT2_DIR_ENTRY

typedef struct ext2_dir_entry EXT2_DIR_ENTRY

Definition at line 130 of file Mke2fs.h.

◆ EXT2_DIR_ENTRY2

typedef struct ext2_dir_entry_2 EXT2_DIR_ENTRY2

Definition at line 131 of file Mke2fs.h.

◆ EXT2_DX_CL

typedef struct ext2_dx_countlimit EXT2_DX_CL

Definition at line 132 of file Mke2fs.h.

◆ EXT2_DX_ENTRY

typedef struct ext2_dx_entry EXT2_DX_ENTRY

Definition at line 133 of file Mke2fs.h.

◆ EXT2_DX_RI

typedef struct ext2_dx_root_info EXT2_DX_RI

Definition at line 134 of file Mke2fs.h.

◆ EXT2_FILESYS

typedef struct _ext2_filesys EXT2_FILESYS

◆ EXT2_GENERIC_BITMAP

typedef EXT2_BITMAP EXT2_GENERIC_BITMAP

Definition at line 124 of file Mke2fs.h.

◆ EXT2_GROUP_DESC

typedef struct ext2_group_desc EXT2_GROUP_DESC

Definition at line 136 of file Mke2fs.h.

◆ EXT2_INODE

typedef struct ext2_inode EXT2_INODE

Definition at line 135 of file Mke2fs.h.

◆ EXT2_INODE_BITMAP

typedef EXT2_BITMAP EXT2_INODE_BITMAP

Definition at line 125 of file Mke2fs.h.

◆ EXT2_SUPER_BLOCK

typedef struct ext2_super_block EXT2_SUPER_BLOCK

Definition at line 137 of file Mke2fs.h.

◆ GUID

typedef struct _GUID GUID

◆ PEXT2_ACL_ENTRY

typedef struct ext2_acl_entry * PEXT2_ACL_ENTRY

Definition at line 128 of file Mke2fs.h.

◆ PEXT2_ACL_HEADER

typedef struct ext2_acl_header * PEXT2_ACL_HEADER

Definition at line 129 of file Mke2fs.h.

◆ PEXT2_BADBLK_LIST

typedef struct ext2_struct_badblocks_list * PEXT2_BADBLK_LIST

Definition at line 149 of file Mke2fs.h.

◆ PEXT2_BDL

typedef struct _EXT2_BDL * PEXT2_BDL

◆ PEXT2_BITMAP

typedef struct _ext2fs_bitmap * PEXT2_BITMAP

◆ PEXT2_BLOCK_BITMAP

typedef EXT2_BITMAP * PEXT2_BLOCK_BITMAP

Definition at line 126 of file Mke2fs.h.

◆ PEXT2_DIR_ENTRY

typedef struct ext2_dir_entry * PEXT2_DIR_ENTRY

Definition at line 130 of file Mke2fs.h.

◆ PEXT2_DIR_ENTRY2

typedef struct ext2_dir_entry_2 * PEXT2_DIR_ENTRY2

Definition at line 131 of file Mke2fs.h.

◆ PEXT2_DX_CL

typedef struct ext2_dx_countlimit * PEXT2_DX_CL

Definition at line 132 of file Mke2fs.h.

◆ PEXT2_DX_ENTRY

typedef struct ext2_dx_entry * PEXT2_DX_ENTRY

Definition at line 133 of file Mke2fs.h.

◆ PEXT2_DX_RI

typedef struct ext2_dx_root_info * PEXT2_DX_RI

Definition at line 134 of file Mke2fs.h.

◆ PEXT2_FILESYS

typedef struct _ext2_filesys * PEXT2_FILESYS

◆ PEXT2_GENERIC_BITMAP

typedef EXT2_BITMAP * PEXT2_GENERIC_BITMAP

Definition at line 124 of file Mke2fs.h.

◆ PEXT2_GROUP_DESC

typedef struct ext2_group_desc * PEXT2_GROUP_DESC

Definition at line 136 of file Mke2fs.h.

◆ PEXT2_INODE

typedef struct ext2_inode * PEXT2_INODE

Definition at line 135 of file Mke2fs.h.

◆ PEXT2_INODE_BITMAP

typedef EXT2_BITMAP * PEXT2_INODE_BITMAP

Definition at line 125 of file Mke2fs.h.

◆ PEXT2_SUPER_BLOCK

typedef struct ext2_super_block * PEXT2_SUPER_BLOCK

Definition at line 137 of file Mke2fs.h.

◆ UUID

typedef GUID UUID

Definition at line 36 of file Mke2fs.h.

Function Documentation

◆ create_bad_block_inode()

bool create_bad_block_inode ( PEXT2_FILESYS  fs,
PEXT2_BADBLK_LIST  bb_list 
)

Definition at line 16 of file Badblock.c.

18{
19 bool retval;
20 EXT2_INODE inode;
21 LARGE_INTEGER SysTime;
22
23 NtQuerySystemTime(&SysTime);
24
25 ext2_mark_inode_bitmap(Ext2Sys->inode_map, EXT2_BAD_INO);
26
27 Ext2Sys->group_desc[0].bg_free_inodes_count--;
28 Ext2Sys->ext2_sb->s_free_inodes_count--;
29
30 memset(&inode, 0, sizeof(EXT2_INODE));
31 inode.i_mode = (USHORT)((0777 & ~Ext2Sys->umask));
32 inode.i_uid = inode.i_gid = 0;
33 inode.i_blocks = 0;
34 inode.i_block[0] = 0;
35 inode.i_links_count = 2;
36 RtlTimeToSecondsSince1970(&SysTime, &inode.i_mtime);
37 inode.i_ctime = inode.i_atime = inode.i_mtime;
38 inode.i_size = 0;
39
40 retval = ext2_save_inode(Ext2Sys, EXT2_BAD_INO, &inode);
41
42 return retval;
43}
ext2_save_inode
bool ext2_save_inode(PEXT2_FILESYS Ext2Sys, ULONG no, PEXT2_INODE pInode)
Definition: Inode.c:59
ext2_mark_inode_bitmap
#define ext2_mark_inode_bitmap
Definition: Mke2fs.h:216
EXT2_BAD_INO
#define EXT2_BAD_INO
Definition: ext2_fs.h:58
RtlTimeToSecondsSince1970
BOOLEAN NTAPI RtlTimeToSecondsSince1970(PLARGE_INTEGER Time, PULONG ElapsedSeconds)
NtQuerySystemTime
NTSTATUS NTAPI NtQuerySystemTime(OUT PLARGE_INTEGER SystemTime)
Definition: time.c:569
USHORT
unsigned short USHORT
Definition: pedump.c:61
memset
#define memset(x, y, z)
Definition: compat.h:39
ext3_inode
Definition: ext3_fs.h:345
inode
Definition: fs.h:78
inode::i_blocks
__u64 i_blocks
Definition: fs.h:85
inode::i_gid
gid_t i_gid
Definition: fs.h:89
inode::i_block
__u32 i_block[15]
Definition: fs.h:86
inode::i_mtime
__u32 i_mtime
Definition: fs.h:83
inode::i_size
loff_t i_size
Definition: fs.h:80
inode::i_mode
umode_t i_mode
Definition: fs.h:87
inode::i_uid
uid_t i_uid
Definition: fs.h:88
inode::i_atime
__u32 i_atime
Definition: fs.h:81
inode::i_ctime
__u32 i_ctime
Definition: fs.h:82
_LARGE_INTEGER
Definition: typedefs.h:103
retval
int retval
Definition: wcstombs.cpp:91

Referenced by Ext2Format().

◆ ext2_add_entry()

bool ext2_add_entry ( PEXT2_FILESYS  pExt2Sys,
ULONG  parent,
ULONG  inode,
int  filetype,
char *  name 
)

Definition at line 619 of file Inode.c.

622{
623 PEXT2_DIR_ENTRY2 dir = NULL, newdir = NULL;
624 EXT2_INODE parent_inode;
625 ULONG dwRet;
626 char *buf;
627 int rec_len;
628 bool bRet = false;
629
630 rec_len = EXT2_DIR_REC_LEN(strlen(name));
631
632 if (!ext2_load_inode(Ext2Sys, parent, &parent_inode))
633 {
634 return false;
635 }
636
637 buf = (char *)RtlAllocateHeap(RtlGetProcessHeap(), 0, parent_inode.i_size);
638
639 if (!ext2_read_inode(Ext2Sys, parent, 0, buf, parent_inode.i_size, &dwRet))
640 {
641 return false;
642 }
643
644 dir = (PEXT2_DIR_ENTRY2) buf;
645
646 while ((char *)dir < buf + parent_inode.i_size)
647 {
648 if ((dir->inode == 0 && dir->rec_len >= rec_len) ||
649 (dir->rec_len >= dir->name_len + rec_len) )
650 {
651 if (dir->inode)
652 {
653 newdir = (PEXT2_DIR_ENTRY2) ((PUCHAR)dir + EXT2_DIR_REC_LEN(dir->name_len));
654 newdir->rec_len = dir->rec_len - EXT2_DIR_REC_LEN(dir->name_len);
655
656 dir->rec_len = EXT2_DIR_REC_LEN(dir->name_len);
657
658 dir = newdir;
659 }
660
661 dir->file_type = filetype;
662 dir->inode = inode;
663 dir->name_len = strlen(name);
664 memcpy(dir->name, name, strlen(name));
665
666 bRet = true;
667 break;
668 }
669
670 dir = (PEXT2_DIR_ENTRY2) (dir->rec_len + (PUCHAR) dir);
671 }
672
673
674 if (bRet)
675 return ext2_write_inode(Ext2Sys, parent, 0, buf, parent_inode.i_size, &dwRet);
676
677 return bRet;
678}
ext2_read_inode
bool ext2_read_inode(PEXT2_FILESYS Ext2Sys, ULONG ino, ULONG offset, PVOID Buffer, ULONG size, PULONG dwReturn)
Definition: Inode.c:494
ext2_load_inode
bool ext2_load_inode(PEXT2_FILESYS Ext2Sys, ULONG no, PEXT2_INODE pInode)
Definition: Inode.c:41
ext2_write_inode
bool ext2_write_inode(PEXT2_FILESYS Ext2Sys, ULONG ino, ULONG offset, PVOID Buffer, ULONG size, PULONG dwReturn)
Definition: Inode.c:541
strlen
ACPI_SIZE strlen(const char *String)
Definition: utclib.c:269
dir
unsigned int dir
Definition: maze.c:112
RtlAllocateHeap
PVOID NTAPI RtlAllocateHeap(IN PVOID HeapHandle, IN ULONG Flags, IN SIZE_T Size)
Definition: heap.c:616
NULL
#define NULL
Definition: types.h:112
parent
r parent
Definition: btrfs.c:3010
EXT2_DIR_REC_LEN
#define EXT2_DIR_REC_LEN(name_len)
Definition: ext2_fs.h:536
PEXT2_DIR_ENTRY2
struct ext3_dir_entry_2 * PEXT2_DIR_ENTRY2
Definition: ext2fs.h:109
buf
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
memcpy
#define memcpy(s1, s2, n)
Definition: mkisofs.h:878
filetype
LOCAL char * filetype(int t)
Definition: tree.c:114
ext3_dir_entry_2
Definition: ext3_fs.h:774
ext3_inode::i_size
__le32 i_size
Definition: ext3_fs.h:348
name
Definition: name.c:39
PUCHAR
unsigned char * PUCHAR
Definition: typedefs.h:53
ULONG
uint32_t ULONG
Definition: typedefs.h:59

Referenced by ext2_mkdir().

◆ ext2_alloc_block()

bool ext2_alloc_block ( PEXT2_FILESYS  fs,
ULONG  goal,
ULONG *  ret 
)

Definition at line 293 of file Memory.c.

294{
295 bool retval;
296 ULONG block;
297 char *buf = NULL;
298
299 buf = (char *)RtlAllocateHeap(RtlGetProcessHeap(), HEAP_ZERO_MEMORY, fs->blocksize);
300 if (!buf)
301 return false;
302
303 if (!fs->block_map)
304 {
305 retval = ext2_read_block_bitmap(fs);
306 if (!retval)
307 goto fail;
308 }
309
310 retval = ext2_new_block(fs, goal, 0, &block);
311
312 if (!retval)
313 goto fail;
314
315 retval = NT_SUCCESS(Ext2WriteDisk(
316 fs,
317 ((LONGLONG)block * fs->blocksize),
318 fs->blocksize, (unsigned char *)buf));
319
320 if (!retval)
321 {
322 goto fail;
323 }
324
325 ext2_block_alloc_stats(fs, block, +1);
326 *ret = block;
327
328 if (buf)
329 {
330 RtlFreeHeap(RtlGetProcessHeap(), 0, buf);
331 }
332
333 return true;
334
335fail:
336
337 if (buf)
338 {
339 RtlFreeHeap(RtlGetProcessHeap(), 0, buf);
340 }
341
342 return false;
343}
ext2_read_block_bitmap
bool ext2_read_block_bitmap(PEXT2_FILESYS fs)
Definition: Bitmap.c:487
Ext2WriteDisk
NTSTATUS Ext2WriteDisk(PEXT2_FILESYS Ext2Sys, ULONGLONG Offset, ULONG Length, PVOID Buffer)
Definition: Disk.c:1059
ext2_block_alloc_stats
void ext2_block_alloc_stats(PEXT2_FILESYS fs, ULONG blk, int inuse)
Definition: Memory.c:61
ext2_new_block
bool ext2_new_block(PEXT2_FILESYS fs, ULONG goal, PEXT2_BLOCK_BITMAP map, ULONG *ret)
Definition: Memory.c:254
RtlFreeHeap
BOOLEAN NTAPI RtlFreeHeap(IN PVOID HeapHandle, IN ULONG Flags, IN PVOID HeapBase)
Definition: heap.c:634
NT_SUCCESS
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:33
HEAP_ZERO_MEMORY
#define HEAP_ZERO_MEMORY
Definition: compat.h:134
ret
return ret
Definition: mutex.c:146
fs
Definition: ffs.h:70
LONGLONG
int64_t LONGLONG
Definition: typedefs.h:68
block
static unsigned int block
Definition: xmlmemory.c:101

Referenced by create_lost_and_found(), ext2_expand_block(), ext2_expand_inode(), and ext2_write_inode().

◆ ext2_allocate_block_bitmap()

bool ext2_allocate_block_bitmap ( PEXT2_FILESYS  pExt2Sys)

Definition at line 100 of file Bitmap.c.

101{
102 ULONG size = 0;
103
104 PEXT2_SUPER_BLOCK pExt2Sb = Ext2Sys->ext2_sb;
105 Ext2Sys->block_map = (PEXT2_BLOCK_BITMAP)
106 RtlAllocateHeap(RtlGetProcessHeap(), 0, sizeof(EXT2_BLOCK_BITMAP));
107
108 if (!Ext2Sys->block_map)
109 {
110 DPRINT1("Mke2fs: error allocating block bitmap...\n");
111 return false;
112 }
113
114 memset(Ext2Sys->block_map, 0, sizeof(EXT2_BLOCK_BITMAP));
115
116 Ext2Sys->block_map->start = pExt2Sb->s_first_data_block;
117 Ext2Sys->block_map->end = pExt2Sb->s_blocks_count-1;
118 Ext2Sys->block_map->real_end = (EXT2_BLOCKS_PER_GROUP(pExt2Sb)
119 * Ext2Sys->group_desc_count) -1 + Ext2Sys->block_map->start;
120
121 size = (((Ext2Sys->block_map->real_end - Ext2Sys->block_map->start) / 8) + 1);
122
123 Ext2Sys->block_map->bitmap =
124 (char *)RtlAllocateHeap(RtlGetProcessHeap(), 0, size);
125
126 if (!Ext2Sys->block_map->bitmap)
127 {
128 RtlFreeHeap(RtlGetProcessHeap(), 0, Ext2Sys->block_map);
129 Ext2Sys->block_map = NULL;
130 DPRINT1("Mke2fs: error allocating block bitmap...\n");
131 return false;
132 }
133
134 memset(Ext2Sys->block_map->bitmap, 0, size);
135
136 return true;
137}
EXT2_BLOCK_BITMAP
EXT2_BITMAP EXT2_BLOCK_BITMAP
Definition: Mke2fs.h:126
PEXT2_BLOCK_BITMAP
EXT2_BITMAP * PEXT2_BLOCK_BITMAP
Definition: Mke2fs.h:126
DPRINT1
#define DPRINT1
Definition: precomp.h:8
EXT2_BLOCKS_PER_GROUP
#define EXT2_BLOCKS_PER_GROUP(s)
Definition: ext2_fs.h:169
size
GLsizeiptr size
Definition: glext.h:5919
_ext2fs_bitmap
Definition: Mke2fs.h:118
ext3_super_block
Definition: ext3_fs.h:488
ext3_super_block::s_blocks_count
__le32 s_blocks_count
Definition: ext3_fs.h:491
ext3_super_block::s_first_data_block
__le32 s_first_data_block
Definition: ext3_fs.h:496

Referenced by ext2_initialize_sb(), and read_bitmaps().

◆ ext2_allocate_group_desc()

bool ext2_allocate_group_desc ( PEXT2_FILESYS  pExt2Sys)

Definition at line 43 of file Group.c.

44{
45 ULONG size;
46
47 size = Ext2Sys->desc_blocks * Ext2Sys->blocksize;
48
49 Ext2Sys->group_desc =
50 (PEXT2_GROUP_DESC)RtlAllocateHeap(RtlGetProcessHeap(), 0, size);
51
52 if (Ext2Sys->group_desc)
53 {
54 memset(Ext2Sys->group_desc, 0, size);
55 return true;
56 }
57
58 return false;
59}
PEXT2_GROUP_DESC
struct ext4_group_desc * PEXT2_GROUP_DESC
Definition: ext2fs.h:107

Referenced by ext2_initialize_sb().

◆ ext2_allocate_group_table()

bool ext2_allocate_group_table ( PEXT2_FILESYS  fs,
ULONG  group,
PEXT2_BLOCK_BITMAP  bmap 
)

Definition at line 92 of file Memory.c.

94{
95 bool retval;
96 ULONG group_blk, start_blk, last_blk, new_blk, blk, j;
97
98 group_blk = fs->ext2_sb->s_first_data_block +
99 (group * fs->ext2_sb->s_blocks_per_group);
100
101 last_blk = group_blk + fs->ext2_sb->s_blocks_per_group;
102 if (last_blk >= fs->ext2_sb->s_blocks_count)
103 last_blk = fs->ext2_sb->s_blocks_count - 1;
104
105 start_blk = group_blk + 3 + fs->desc_blocks;
106 if (start_blk > last_blk)
107 start_blk = group_blk;
108
109 if (!bmap)
110 bmap = fs->block_map;
111
112 /*
113 * Allocate the inode table
114 */
115 if (!fs->group_desc[group].bg_inode_table)
116 {
117 retval = ext2_get_free_blocks(fs, start_blk, last_blk,
118 fs->inode_blocks_per_group,
119 bmap, &new_blk);
120 if (!retval)
121 return retval;
122
123 for (j=0, blk = new_blk;
124 j < fs->inode_blocks_per_group;
125 j++, blk++)
126 ext2_mark_block_bitmap(bmap, blk);
127
128 fs->group_desc[group].bg_inode_table = new_blk;
129 }
130
131 /*
132 * Allocate the block and inode bitmaps, if necessary
133 */
134 if (fs->stride)
135 {
136 start_blk += fs->inode_blocks_per_group;
137 start_blk += ((fs->stride * group) %
138 (last_blk - start_blk));
139 if (start_blk > last_blk)
140 /* should never happen */
141 start_blk = group_blk;
142 }
143 else
144 {
145 start_blk = group_blk;
146 }
147
148 if (!fs->group_desc[group].bg_block_bitmap)
149 {
150 retval = ext2_get_free_blocks(fs, start_blk, last_blk,
151 1, bmap, &new_blk);
152
153 if (!retval)
154 retval = ext2_get_free_blocks(fs, group_blk,
155 last_blk, 1, bmap, &new_blk);
156
157 if (!retval)
158 return retval;
159
160 ext2_mark_block_bitmap(bmap, new_blk);
161 fs->group_desc[group].bg_block_bitmap = new_blk;
162 }
163
164 if (!fs->group_desc[group].bg_inode_bitmap)
165 {
166 retval = ext2_get_free_blocks(fs, start_blk, last_blk,
167 1, bmap, &new_blk);
168 if (!retval)
169 retval = ext2_get_free_blocks(fs, group_blk,
170 last_blk, 1, bmap, &new_blk);
171 if (!retval)
172 return retval;
173
174 ext2_mark_block_bitmap(bmap, new_blk);
175 fs->group_desc[group].bg_inode_bitmap = new_blk;
176 }
177
178 return true;
179}
ext2_get_free_blocks
bool ext2_get_free_blocks(PEXT2_FILESYS fs, ULONG start, ULONG finish, int num, PEXT2_BLOCK_BITMAP map, ULONG *ret)
Definition: Memory.c:182
ext2_mark_block_bitmap
#define ext2_mark_block_bitmap
Definition: Mke2fs.h:215
bmap
ULONGLONG bmap(struct inode *i, ULONGLONG b)
Definition: linux.c:942
group
GLboolean GLuint group
Definition: glext.h:11120
j
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint GLint GLint j
Definition: glfuncs.h:250
blk
#define blk
Definition: linetest.c:70

Referenced by ext2_allocate_tables().

◆ ext2_allocate_inode_bitmap()

bool ext2_allocate_inode_bitmap ( PEXT2_FILESYS  pExt2Sys)

Definition at line 140 of file Bitmap.c.

141{
142 ULONG size = 0;
143
144 PEXT2_SUPER_BLOCK pExt2Sb = Ext2Sys->ext2_sb;
145
146 Ext2Sys->inode_map = (PEXT2_INODE_BITMAP)
147 RtlAllocateHeap(RtlGetProcessHeap(), 0, sizeof(EXT2_INODE_BITMAP));
148
149 if (!Ext2Sys->inode_map)
150 {
151 DPRINT1("Mke2fs: error allocating inode bitmap...\n");
152 return false;
153 }
154
155 memset(Ext2Sys->inode_map, 0, sizeof(EXT2_INODE_BITMAP));
156
157 Ext2Sys->inode_map->start = 1;
158 Ext2Sys->inode_map->end = pExt2Sb->s_inodes_count;
159 Ext2Sys->inode_map->real_end = (EXT2_INODES_PER_GROUP(pExt2Sb)
160 * Ext2Sys->group_desc_count);
161
162 size = (((Ext2Sys->inode_map->real_end - Ext2Sys->inode_map->start) / 8) + 1);
163
164 Ext2Sys->inode_map->bitmap =
165 (char *)RtlAllocateHeap(RtlGetProcessHeap(), 0, size);
166
167 if (!Ext2Sys->inode_map->bitmap)
168 {
169 RtlFreeHeap(RtlGetProcessHeap(), 0, Ext2Sys->inode_map);
170 Ext2Sys->inode_map = NULL;
171 DPRINT1("Mke2fs: error allocating block bitmap...\n");
172 return false;
173 }
174
175 memset(Ext2Sys->inode_map->bitmap, 0, size);
176
177 return true;
178}
EXT2_INODE_BITMAP
EXT2_BITMAP EXT2_INODE_BITMAP
Definition: Mke2fs.h:125
PEXT2_INODE_BITMAP
EXT2_BITMAP * PEXT2_INODE_BITMAP
Definition: Mke2fs.h:125
EXT2_INODES_PER_GROUP
#define EXT2_INODES_PER_GROUP(s)
Definition: ext2_fs.h:171
ext3_super_block::s_inodes_count
__le32 s_inodes_count
Definition: ext3_fs.h:490

Referenced by ext2_initialize_sb(), and read_bitmaps().

◆ ext2_allocate_tables()

bool ext2_allocate_tables ( PEXT2_FILESYS  pExt2Sys)

Definition at line 75 of file Memory.c.

76{
77 bool retval;
78 ULONG i;
79
80 for (i = 0; i < Ext2Sys->group_desc_count; i++)
81 {
82 retval = ext2_allocate_group_table(Ext2Sys, i, Ext2Sys->block_map);
83
84 if (!retval)
85 return retval;
86 }
87
88 return true;
89}
ext2_allocate_group_table
bool ext2_allocate_group_table(PEXT2_FILESYS fs, ULONG group, PEXT2_BLOCK_BITMAP bmap)
Definition: Memory.c:92
i
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248

Referenced by Ext2Format().

◆ ext2_bg_has_super()

bool ext2_bg_has_super ( PEXT2_SUPER_BLOCK  pExt2Sb,
int  group_block 
)

Definition at line 30 of file Group.c.

31{
32 if (!(pExt2Sb->s_feature_ro_compat & EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER))
33 return true;
34
35 if (test_root(group_block, 3) || (test_root(group_block, 5)) ||
36 test_root(group_block, 7))
37 return true;
38
39 return false;
40}
test_root
int test_root(int a, int b)
Definition: Group.c:16
EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
#define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
Definition: ext2_fs.h:465
ext3_super_block::s_feature_ro_compat
__le32 s_feature_ro_compat
Definition: ext3_fs.h:539

Referenced by ext2_flush(), and ext2_initialize_sb().

◆ ext2_block_alloc_stats()

void ext2_block_alloc_stats ( PEXT2_FILESYS  fs,
ULONG  blk,
int  inuse 
)

Definition at line 61 of file Memory.c.

62{
63 int group = ext2_group_of_blk(fs, blk);
64
65 if (inuse > 0)
66 ext2_mark_block_bitmap(fs->block_map, blk);
67 else
68 ext2_unmark_block_bitmap(fs->block_map, blk);
69
70 fs->group_desc[group].bg_free_blocks_count -= inuse;
71 fs->ext2_sb->s_free_blocks_count -= inuse;
72}
ext2_group_of_blk
int ext2_group_of_blk(PEXT2_FILESYS fs, ULONG blk)
Definition: Memory.c:31
ext2_unmark_block_bitmap
#define ext2_unmark_block_bitmap
Definition: Mke2fs.h:217

Referenced by ext2_alloc_block(), and ext2_mkdir().

◆ ext2_clear_bit()

bool ext2_clear_bit ( int  nr,
void *  addr 
)

Definition at line 30 of file Bitmap.c.

31{
32 int mask;
33 unsigned char *ADDR = (unsigned char *) addr;
34
35 ADDR += nr >> 3;
36 mask = 1 << (nr & 0x07);
37 *ADDR &= ~mask;
38 return true;
39}
mask
GLenum GLint GLuint mask
Definition: glext.h:6028
addr
GLenum const GLvoid * addr
Definition: glext.h:9621
nr
ULONG nr
Definition: thread.c:7

Referenced by ext2_unmark_bitmap().

◆ ext2_expand_inode()

bool ext2_expand_inode ( PEXT2_FILESYS  pExt2Sys,
PEXT2_INODE  Inode,
ULONG  newBlk 
)

Definition at line 212 of file Inode.c.

215{
216 ULONG dwSizes[4] = {12, 1, 1, 1};
217 ULONG Index = 0;
218 ULONG dwTotal = 0;
219 ULONG dwBlk = 0, dwNewBlk = 0, Offset = 0;
220 PEXT2_SUPER_BLOCK pExt2Sb = Ext2Sys->ext2_sb;
221 int i = 0;
222 bool bRet = true;
223 ULONG TotalBlocks;
224
225 TotalBlocks = Inode->i_blocks / (Ext2Sys->blocksize / SECTOR_SIZE);
226 Index = Ext2DataBlocks(Ext2Sys, TotalBlocks);
227
228 for (i = 0; i < 4; i++)
229 {
230 dwSizes[i] = dwSizes[i] << ((10 + pExt2Sb->s_log_block_size - 2) * i);
231 dwTotal += dwSizes[i];
232 }
233
234 if (Index >= dwTotal)
235 {
236 DPRINT1("Mke2fs: ext2_expand_inode: beyond the maxinum size of an inode.\n");
237 return false;
238 }
239
240 for (i = 0; i < 4; i++)
241 {
242 if (Index < dwSizes[i])
243 {
244 if (i == 0)
245 {
246 Inode->i_block[Index] = newBlk;
247 }
248 else
249 {
250 dwBlk = Inode->i_block[(i + 12 - 1)];
251
252 if (dwBlk == 0)
253 {
254 if (ext2_alloc_block(Ext2Sys, 0, &dwBlk))
255 {
256 Inode->i_block[(i + 12 - 1)] = dwBlk;
257
258 Inode->i_blocks += (Ext2Sys->blocksize / SECTOR_SIZE);
259 }
260 else
261 {
262 break;
263 }
264 }
265
266 dwNewBlk = 0;
267 bRet = ext2_expand_block(
268 Ext2Sys,
269 Inode,
270 dwBlk,
271 Index,
272 i,
273 newBlk,
274 &dwNewBlk,
275 &Offset );
276 }
277
278 break;
279 }
280
281 Index -= dwSizes[i];
282 }
283
284 return bRet;
285}
ext2_expand_block
bool ext2_expand_block(PEXT2_FILESYS Ext2Sys, PEXT2_INODE Inode, ULONG dwContent, ULONG Index, int layer, ULONG newBlk, ULONG *dwRet, ULONG *off)
Definition: Inode.c:128
ext2_alloc_block
bool ext2_alloc_block(PEXT2_FILESYS fs, ULONG goal, ULONG *ret)
Definition: Memory.c:293
Ext2DataBlocks
ULONG Ext2DataBlocks(PEXT2_FILESYS Ext2Sys, ULONG TotalBlocks)
Definition: Mke2fs.c:698
SECTOR_SIZE
#define SECTOR_SIZE
Definition: fs.h:22
Offset
_In_ ULONG _In_ ULONG Offset
Definition: ntddpcm.h:101
ext3_inode::i_block
__le32 i_block[EXT3_N_BLOCKS]
Definition: ext3_fs.h:368
ext3_inode::i_blocks
__le32 i_blocks
Definition: ext3_fs.h:355
ext3_super_block::s_log_block_size
__le32 s_log_block_size
Definition: ext3_fs.h:497
Index
_In_ WDFCOLLECTION _In_ ULONG Index
Definition: wdfcollection.h:182

Referenced by create_lost_and_found(), and ext2_write_inode().

◆ ext2_free_block_bitmap()

void ext2_free_block_bitmap ( PEXT2_FILESYS  pExt2Sys)

Definition at line 205 of file Bitmap.c.

206{
207 PEXT2_BLOCK_BITMAP bitmap = Ext2Sys->block_map;
208 if (!bitmap)
209 return;
210
211 ext2_free_generic_bitmap(bitmap);
212
213 Ext2Sys->block_map = NULL;
214}
ext2_free_generic_bitmap
void ext2_free_generic_bitmap(PEXT2_GENERIC_BITMAP bitmap)
Definition: Bitmap.c:180
bitmap
Definition: uimain.c:89

Referenced by ext2_initialize_sb(), Ext2Format(), and read_bitmaps().

◆ ext2_free_group_desc()

void ext2_free_group_desc ( PEXT2_FILESYS  pExt2Sys)

Definition at line 61 of file Group.c.

62{
63 if (Ext2Sys->group_desc)
64 {
65 RtlFreeHeap(RtlGetProcessHeap(), 0, Ext2Sys->group_desc);
66 Ext2Sys->group_desc = NULL;
67 }
68}

Referenced by ext2_initialize_sb(), and Ext2Format().

◆ ext2_free_inode_bitmap()

void ext2_free_inode_bitmap ( PEXT2_FILESYS  pExt2Sys)

Definition at line 194 of file Bitmap.c.

195{
196 PEXT2_INODE_BITMAP bitmap = Ext2Sys->inode_map;
197 if (!bitmap)
198 return;
199
200 ext2_free_generic_bitmap(bitmap);
201
202 Ext2Sys->inode_map = NULL;
203}

Referenced by ext2_initialize_sb(), Ext2Format(), and read_bitmaps().

◆ ext2_get_free_blocks()

bool ext2_get_free_blocks ( PEXT2_FILESYS  fs,
ULONG  start,
ULONG  finish,
int  num,
PEXT2_BLOCK_BITMAP  map,
ULONG *  ret 
)

Definition at line 182 of file Memory.c.

184{
185 ULONG b = start;
186
187 if (!map)
188 map = fs->block_map;
189
190 if (!map)
191 return false;
192
193 if (!b)
194 b = fs->ext2_sb->s_first_data_block;
195
196 if (!finish)
197 finish = start;
198
199 if (!num)
200 num = 1;
201
202 do
203 {
204 if (b+num-1 > fs->ext2_sb->s_blocks_count)
205 b = fs->ext2_sb->s_first_data_block;
206
207 if (ext2_test_block_bitmap_range(map, b, num))
208 {
209 *ret = b;
210 return true;
211 }
212
213 b++;
214
215 } while (b != finish);
216
217 return false;
218}
ext2_test_block_bitmap_range
bool ext2_test_block_bitmap_range(PEXT2_BLOCK_BITMAP bitmap, ULONG block, int num)
Definition: Bitmap.c:80
map
Definition: _map.h:48
start
GLuint start
Definition: gl.h:1545
b
GLboolean GLboolean GLboolean b
Definition: glext.h:6204
num
GLuint GLuint num
Definition: glext.h:9618
b
#define b
Definition: ke_i.h:79
finish
#define finish()
Definition: seh0024.c:15

Referenced by ext2_allocate_group_table().

◆ ext2_get_inode_lba()

bool ext2_get_inode_lba ( PEXT2_FILESYS  pExt2Sys,
ULONG  no,
LONGLONG *  offset 
)

Definition at line 20 of file Inode.c.

21{
22 LONGLONG loc = 0;
23 PEXT2_SUPER_BLOCK pExt2Sb = Ext2Sys->ext2_sb;
24
25 if (no < 1 || no > pExt2Sb->s_inodes_count)
26 {
27 DPRINT1("Mke2fs: Inode value %lu was out of range in load_inode.(1-%ld)\n",
28 no, pExt2Sb->s_inodes_count);
29 *offset = 0;
30 return false;
31 }
32
33 loc = (LONGLONG)(Ext2Sys->blocksize) * Ext2Sys->group_desc[(no - 1) / pExt2Sb->s_inodes_per_group].bg_inode_table +
34 ((no - 1) % pExt2Sb->s_inodes_per_group) * sizeof(EXT2_INODE);
35
36 *offset = loc;
37
38 return true;
39}
no
static WCHAR no[MAX_STRING_RESOURCE_LEN]
Definition: object.c:2340
offset
GLintptr offset
Definition: glext.h:5920
ext3_super_block::s_inodes_per_group
__le32 s_inodes_per_group
Definition: ext3_fs.h:502

Referenced by ext2_load_inode(), and ext2_save_inode().

◆ ext2_group_of_blk()

int ext2_group_of_blk ( PEXT2_FILESYS  fs,
ULONG  blk 
)

Definition at line 31 of file Memory.c.

32{
33 return (blk - fs->ext2_sb->s_first_data_block) /
34 fs->ext2_sb->s_blocks_per_group;
35}

Referenced by ext2_block_alloc_stats().

◆ ext2_group_of_ino()

int ext2_group_of_ino ( PEXT2_FILESYS  fs,
ULONG  ino 
)

Definition at line 23 of file Memory.c.

24{
25 return (ino - 1) / fs->ext2_sb->s_inodes_per_group;
26}

Referenced by ext2_inode_alloc_stats2(), and ext2_reserve_inodes().

◆ ext2_initialize_sb()

bool ext2_initialize_sb ( PEXT2_FILESYS  pExt2Sys)

Definition at line 74 of file Super.c.

75{
76 int frags_per_block = 0;
77 ULONG overhead = 0;
78 ULONG rem = 0;
79 ULONG i = 0;
80 ULONG group_block = 0;
81 ULONG numblocks = 0;
82 PEXT2_SUPER_BLOCK pExt2Sb = Ext2Sys->ext2_sb;
83 LARGE_INTEGER SysTime;
84
85 NtQuerySystemTime(&SysTime);
86
87 Ext2Sys->blocksize = EXT2_BLOCK_SIZE(pExt2Sb);
88 Ext2Sys->fragsize = EXT2_FRAG_SIZE(pExt2Sb);
89 frags_per_block = Ext2Sys->blocksize / Ext2Sys->fragsize;
90
91 pExt2Sb->s_magic = EXT2_SUPER_MAGIC;
92 pExt2Sb->s_state = EXT2_VALID_FS;
93
94 pExt2Sb->s_first_data_block = (pExt2Sb->s_log_block_size) ? 0 : 1;
95 pExt2Sb->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
96
97 pExt2Sb->s_errors = EXT2_ERRORS_DEFAULT;
98
99 pExt2Sb->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
100
101 if (!pExt2Sb->s_rev_level)
102 pExt2Sb->s_rev_level = EXT2_GOOD_OLD_REV;
103
104 if (pExt2Sb->s_rev_level >= EXT2_DYNAMIC_REV)
105 {
106 set_field(s_first_ino, EXT2_GOOD_OLD_FIRST_INO);
107 set_field(s_inode_size, EXT2_GOOD_OLD_INODE_SIZE);
108 }
109
110 RtlTimeToSecondsSince1970(&SysTime, &pExt2Sb->s_wtime);
111 pExt2Sb->s_lastcheck = pExt2Sb->s_mtime = pExt2Sb->s_wtime;
112
113 if (!pExt2Sb->s_blocks_per_group)
114 pExt2Sb->s_blocks_per_group = Ext2Sys->blocksize * 8;
115
116 pExt2Sb->s_frags_per_group = pExt2Sb->s_blocks_per_group * frags_per_block;
117 pExt2Sb->s_creator_os = EXT2_OS_WINNT;
118
119 if (pExt2Sb->s_r_blocks_count >= pExt2Sb->s_blocks_count)
120 {
121 goto cleanup;
122 }
123
124 /*
125 * If we're creating an external journal device, we don't need
126 * to bother with the rest.
127 */
128 if (pExt2Sb->s_feature_incompat &
129 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)
130 {
131 Ext2Sys->group_desc_count = 0;
132 // ext2fs_mark_super_dirty(fs);
133 return true;
134 }
135
136retry:
137
138 Ext2Sys->group_desc_count = (pExt2Sb->s_blocks_count - pExt2Sb->s_first_data_block
139 + EXT2_BLOCKS_PER_GROUP(pExt2Sb) - 1) / EXT2_BLOCKS_PER_GROUP(pExt2Sb);
140
141 if (Ext2Sys->group_desc_count == 0)
142 return false;
143
144 Ext2Sys->desc_blocks = (Ext2Sys->group_desc_count + EXT2_DESC_PER_BLOCK(pExt2Sb)
145 - 1) / EXT2_DESC_PER_BLOCK(pExt2Sb);
146
147 if (!pExt2Sb->s_inodes_count)
148 pExt2Sb->s_inodes_count = pExt2Sb->s_blocks_count / ( inode_ratio /Ext2Sys->blocksize);
149
150 /*
151 * Make sure we have at least EXT2_FIRST_INO + 1 inodes, so
152 * that we have enough inodes for the filesystem(!)
153 */
154 if (pExt2Sb->s_inodes_count < EXT2_FIRST_INODE(pExt2Sb)+1)
155 pExt2Sb->s_inodes_count = EXT2_FIRST_INODE(pExt2Sb)+1;
156
157 /*
158 * There should be at least as many inodes as the user
159 * requested. Figure out how many inodes per group that
160 * should be. But make sure that we don't allocate more than
161 * one bitmap's worth of inodes
162 */
163 pExt2Sb->s_inodes_per_group = (pExt2Sb->s_inodes_count + Ext2Sys->group_desc_count - 1)
164 /Ext2Sys->group_desc_count;
165
166 if (pExt2Sb->s_inodes_per_group > (ULONG)(Ext2Sys->blocksize*8))
167 pExt2Sb->s_inodes_per_group = Ext2Sys->blocksize*8;
168
169 /*
170 * Make sure the number of inodes per group completely fills
171 * the inode table blocks in the descriptor. If not, add some
172 * additional inodes/group. Waste not, want not...
173 */
174 Ext2Sys->inode_blocks_per_group = (((pExt2Sb->s_inodes_per_group * EXT2_INODE_SIZE(pExt2Sb))
175 + EXT2_BLOCK_SIZE(pExt2Sb) - 1) / EXT2_BLOCK_SIZE(pExt2Sb));
176
177 pExt2Sb->s_inodes_per_group = ((Ext2Sys->inode_blocks_per_group * EXT2_BLOCK_SIZE(pExt2Sb))
178 / EXT2_INODE_SIZE(pExt2Sb));
179
180 /*
181 * Finally, make sure the number of inodes per group is a
182 * multiple of 8. This is needed to simplify the bitmap
183 * splicing code.
184 */
185 pExt2Sb->s_inodes_per_group &= ~7;
186 Ext2Sys->inode_blocks_per_group = (((pExt2Sb->s_inodes_per_group * EXT2_INODE_SIZE(pExt2Sb))
187 + EXT2_BLOCK_SIZE(pExt2Sb) - 1) / EXT2_BLOCK_SIZE(pExt2Sb));
188
189 /*
190 * adjust inode count to reflect the adjusted inodes_per_group
191 */
192 pExt2Sb->s_inodes_count = pExt2Sb->s_inodes_per_group * Ext2Sys->group_desc_count;
193 pExt2Sb->s_free_inodes_count = pExt2Sb->s_inodes_count;
194
195 /*
196 * Overhead is the number of bookkeeping blocks per group. It
197 * includes the superblock backup, the group descriptor
198 * backups, the inode bitmap, the block bitmap, and the inode
199 * table.
200 *
201 * XXX Not all block groups need the descriptor blocks, but
202 * being clever is tricky...
203 */
204 overhead = (3 + Ext2Sys->desc_blocks + Ext2Sys->inode_blocks_per_group);
205
206 /*
207 * See if the last group is big enough to support the
208 * necessary data structures. If not, we need to get rid of
209 * it.
210 */
211 rem = ((pExt2Sb->s_blocks_count - pExt2Sb->s_first_data_block) %
212 pExt2Sb->s_blocks_per_group);
213
214 if ((Ext2Sys->group_desc_count == 1) && rem && (rem < overhead))
215 return false;
216
217 if (rem && (rem < overhead+50))
218 {
219 pExt2Sb->s_blocks_count -= rem;
220 goto retry;
221 }
222
223 /*
224 * At this point we know how big the filesystem will be. So we can do
225 * any and all allocations that depend on the block count.
226 */
227
228 // Allocate block bitmap
229 if(!ext2_allocate_block_bitmap(Ext2Sys))
230 {
231 goto cleanup;
232 }
233
234 // Allocate inode bitmap
235 if(!ext2_allocate_inode_bitmap(Ext2Sys))
236 {
237 goto cleanup;
238 }
239
240 // Allocate gourp desc
241 if(!ext2_allocate_group_desc(Ext2Sys))
242 {
243 goto cleanup;
244 }
245
246 /*
247 * Reserve the superblock and group descriptors for each
248 * group, and fill in the correct group statistics for group.
249 * Note that although the block bitmap, inode bitmap, and
250 * inode table have not been allocated (and in fact won't be
251 * by this routine), they are accounted for nevertheless.
252 */
253 group_block = pExt2Sb->s_first_data_block;
254 numblocks = 0;
255
256 pExt2Sb->s_free_blocks_count = 0;
257
258 for (i = 0; i < Ext2Sys->group_desc_count; i++)
259 {
260 if (i == Ext2Sys->group_desc_count-1)
261 {
262 numblocks = (pExt2Sb->s_blocks_count - pExt2Sb->s_first_data_block)
263 % pExt2Sb->s_blocks_per_group;
264
265 if (!numblocks)
266 numblocks = pExt2Sb->s_blocks_per_group;
267 }
268 else
269 {
270 numblocks = pExt2Sb->s_blocks_per_group;
271 }
272
273 if (ext2_bg_has_super(pExt2Sb, i))
274 {
275 ULONG j;
276
277 for (j=0; j < Ext2Sys->desc_blocks+1; j++)
278 ext2_mark_bitmap(Ext2Sys->block_map, group_block + j);
279
280 numblocks -= 1 + Ext2Sys->desc_blocks;
281 }
282
283 numblocks -= 2 + Ext2Sys->inode_blocks_per_group;
284
285 pExt2Sb->s_free_blocks_count += numblocks;
286 Ext2Sys->group_desc[i].bg_free_blocks_count = (__u16)numblocks;
287 Ext2Sys->group_desc[i].bg_free_inodes_count = (__u16)pExt2Sb->s_inodes_per_group;
288 Ext2Sys->group_desc[i].bg_used_dirs_count = 0;
289
290 group_block += pExt2Sb->s_blocks_per_group;
291 }
292
293 return true;
294
295cleanup:
296
297 ext2_free_group_desc(Ext2Sys);
298 ext2_free_block_bitmap(Ext2Sys);
299 ext2_free_inode_bitmap(Ext2Sys);
300
301 return false;
302}
ext2_free_inode_bitmap
void ext2_free_inode_bitmap(PEXT2_FILESYS Ext2Sys)
Definition: Bitmap.c:194
ext2_allocate_block_bitmap
bool ext2_allocate_block_bitmap(PEXT2_FILESYS Ext2Sys)
Definition: Bitmap.c:100
ext2_mark_bitmap
bool ext2_mark_bitmap(PEXT2_BITMAP bitmap, ULONG bitno)
Definition: Bitmap.c:52
ext2_allocate_inode_bitmap
bool ext2_allocate_inode_bitmap(PEXT2_FILESYS Ext2Sys)
Definition: Bitmap.c:140
ext2_free_block_bitmap
void ext2_free_block_bitmap(PEXT2_FILESYS Ext2Sys)
Definition: Bitmap.c:205
ext2_free_group_desc
void ext2_free_group_desc(PEXT2_FILESYS Ext2Sys)
Definition: Group.c:61
ext2_bg_has_super
bool ext2_bg_has_super(PEXT2_SUPER_BLOCK pExt2Sb, int group_block)
Definition: Group.c:30
ext2_allocate_group_desc
bool ext2_allocate_group_desc(PEXT2_FILESYS Ext2Sys)
Definition: Group.c:43
EXT2_FIRST_INODE
#define EXT2_FIRST_INODE(s)
Definition: Mke2fs.h:116
inode_ratio
int inode_ratio
Definition: Mke2fs.c:17
set_field
#define set_field(field, default)
Definition: Super.c:68
cleanup
static void cleanup(void)
Definition: main.c:1335
EXT2_VALID_FS
#define EXT2_VALID_FS
Definition: ext2_fs.h:310
EXT2_GOOD_OLD_FIRST_INO
#define EXT2_GOOD_OLD_FIRST_INO
Definition: ext2_fs.h:66
EXT2_GOOD_OLD_INODE_SIZE
#define EXT2_GOOD_OLD_INODE_SIZE
Definition: ext2_fs.h:432
EXT2_INODE_SIZE
#define EXT2_INODE_SIZE(s)
Definition: ext2_fs.h:101
EXT2_FRAG_SIZE
#define EXT2_FRAG_SIZE(s)
Definition: ext2_fs.h:119
EXT2_DESC_PER_BLOCK
#define EXT2_DESC_PER_BLOCK(s)
Definition: ext2_fs.h:170
EXT2_ERRORS_DEFAULT
#define EXT2_ERRORS_DEFAULT
Definition: ext2_fs.h:341
EXT2_DFL_CHECKINTERVAL
#define EXT2_DFL_CHECKINTERVAL
Definition: ext2_fs.h:333
EXT2_BLOCK_SIZE
#define EXT2_BLOCK_SIZE(s)
Definition: ext2_fs.h:87
EXT2_DFL_MAX_MNT_COUNT
#define EXT2_DFL_MAX_MNT_COUNT
Definition: ext2_fs.h:332
EXT2_GOOD_OLD_REV
#define EXT2_GOOD_OLD_REV
Definition: ext2_fs.h:426
EXT2_DYNAMIC_REV
#define EXT2_DYNAMIC_REV
Definition: ext2_fs.h:427
EXT2_SUPER_MAGIC
#define EXT2_SUPER_MAGIC
Definition: ext2fs.h:349
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
Definition: ext3_fs.h:681
if
if(dx< 0)
Definition: linetemp.h:194
__u16
#define __u16
Definition: types.h:13
EXT2_OS_WINNT
#define EXT2_OS_WINNT
Definition: ext2_fs.h:447
ext3_super_block::s_mtime
__le32 s_mtime
Definition: ext3_fs.h:503
ext3_super_block::s_max_mnt_count
__le16 s_max_mnt_count
Definition: ext3_fs.h:507
ext3_super_block::s_wtime
__le32 s_wtime
Definition: ext3_fs.h:505
ext3_super_block::s_rev_level
__le32 s_rev_level
Definition: ext3_fs.h:516
ext3_super_block::s_feature_incompat
__le32 s_feature_incompat
Definition: ext3_fs.h:538
ext3_super_block::s_errors
__le16 s_errors
Definition: ext3_fs.h:510
ext3_super_block::s_magic
__le16 s_magic
Definition: ext3_fs.h:508
ext3_super_block::s_free_blocks_count
__le32 s_free_blocks_count
Definition: ext3_fs.h:493
ext3_super_block::s_creator_os
__le32 s_creator_os
Definition: ext3_fs.h:515
ext3_super_block::s_state
__le16 s_state
Definition: ext3_fs.h:509
ext3_super_block::s_lastcheck
__le32 s_lastcheck
Definition: ext3_fs.h:513
ext3_super_block::s_checkinterval
__le32 s_checkinterval
Definition: ext3_fs.h:514
ext3_super_block::s_r_blocks_count
__le32 s_r_blocks_count
Definition: ext3_fs.h:492
ext3_super_block::s_blocks_per_group
__le32 s_blocks_per_group
Definition: ext3_fs.h:500
ext3_super_block::s_free_inodes_count
__le32 s_free_inodes_count
Definition: ext3_fs.h:495

Referenced by Ext2Format().

◆ ext2_inode_alloc_stats()

void ext2_inode_alloc_stats ( PEXT2_FILESYS  fs,
ULONG  ino,
int  inuse 
)

Definition at line 56 of file Memory.c.

57{
58 ext2_inode_alloc_stats2(fs, ino, inuse, 0);
59}
ext2_inode_alloc_stats2
void ext2_inode_alloc_stats2(PEXT2_FILESYS fs, ULONG ino, int inuse, int isdir)
Definition: Memory.c:37

◆ ext2_inode_alloc_stats2()

void ext2_inode_alloc_stats2 ( PEXT2_FILESYS  fs,
ULONG  ino,
int  inuse,
int  isdir 
)

Definition at line 37 of file Memory.c.

39{
40 int group = ext2_group_of_ino(fs, ino);
41
42 if (inuse > 0)
43 ext2_mark_inode_bitmap(fs->inode_map, ino);
44 else
45 ext2_unmark_inode_bitmap(fs->inode_map, ino);
46
47 fs->group_desc[group].bg_free_inodes_count -= inuse;
48
49 if (isdir)
50 fs->group_desc[group].bg_used_dirs_count += inuse;
51
52 fs->ext2_sb->s_free_inodes_count -= inuse;
53}
ext2_group_of_ino
int ext2_group_of_ino(PEXT2_FILESYS fs, ULONG ino)
Definition: Memory.c:23
ext2_unmark_inode_bitmap
#define ext2_unmark_inode_bitmap
Definition: Mke2fs.h:218

Referenced by ext2_inode_alloc_stats(), and ext2_mkdir().

◆ ext2_load_inode()

bool ext2_load_inode ( PEXT2_FILESYS  pExt2Sys,
ULONG  no,
PEXT2_INODE  pInode 
)

Definition at line 41 of file Inode.c.

42{
43 LONGLONG Offset;
44 bool bRet = false;
45
46 if (ext2_get_inode_lba(Ext2Sys, no, &Offset))
47 {
48 bRet = NT_SUCCESS(Ext2ReadDisk(
49 Ext2Sys,
50 Offset,
51 sizeof(EXT2_INODE),
52 (unsigned char *)pInode));
53 }
54
55 return bRet;
56}
ext2_get_inode_lba
bool ext2_get_inode_lba(PEXT2_FILESYS Ext2Sys, ULONG no, LONGLONG *offset)
Definition: Inode.c:20
Ext2ReadDisk
NTSTATUS Ext2ReadDisk(IN PEXT2_VCB Vcb, IN ULONGLONG Offset, IN ULONG Size, IN PVOID Buffer, IN BOOLEAN bVerify)
Definition: block.c:559

Referenced by ext2_add_entry(), ext2_mkdir(), ext2_read_inode(), and ext2_write_inode().

◆ ext2_mark_bitmap()

bool ext2_mark_bitmap ( PEXT2_BITMAP  bitmap,
ULONG  bitno 
)

Definition at line 52 of file Bitmap.c.

53{
54 if ((bitno < bitmap->start) || (bitno > bitmap->end))
55 {
56 return false;
57 }
58
59 return ext2_set_bit(bitno - bitmap->start, bitmap->bitmap);
60}
ext2_set_bit
bool ext2_set_bit(int nr, void *addr)
Definition: Bitmap.c:18

Referenced by ext2_initialize_sb().

◆ ext2_new_block()

bool ext2_new_block ( PEXT2_FILESYS  fs,
ULONG  goal,
PEXT2_BLOCK_BITMAP  map,
ULONG *  ret 
)

Definition at line 254 of file Memory.c.

256{
257 ULONG i;
258
259 if (!map)
260 map = fs->block_map;
261
262 if (!map)
263 return false;
264
265 if (!goal || (goal >= fs->ext2_sb->s_blocks_count))
266 goal = fs->ext2_sb->s_first_data_block;
267
268 i = goal;
269
270 do
271 {
272 if (!ext2_test_block_bitmap(map, i))
273 {
274 *ret = i;
275 return true;
276 }
277
278 i++;
279
280 if (i >= fs->ext2_sb->s_blocks_count)
281 i = fs->ext2_sb->s_first_data_block;
282
283 } while (i != goal);
284
285 return false;
286}
ext2_test_block_bitmap
bool ext2_test_block_bitmap(PEXT2_BLOCK_BITMAP bitmap, ULONG block)
Definition: Bitmap.c:73

Referenced by ext2_alloc_block(), and ext2_mkdir().

◆ ext2_new_dir_block()

bool ext2_new_dir_block ( PEXT2_FILESYS  fs,
ULONG  dir_ino,
ULONG  parent_ino,
char **  block 
)

Definition at line 349 of file Memory.c.

351{
352 PEXT2_DIR_ENTRY dir = NULL;
353 char *buf;
354 int rec_len;
355 int filetype = 0;
356
357 buf = (char *)RtlAllocateHeap(RtlGetProcessHeap(), HEAP_ZERO_MEMORY, fs->blocksize);
358 if (!buf)
359 return false;
360
361 dir = (PEXT2_DIR_ENTRY) buf;
362 dir->rec_len = fs->blocksize;
363
364 if (dir_ino)
365 {
366 if (fs->ext2_sb->s_feature_incompat &
367 EXT2_FEATURE_INCOMPAT_FILETYPE)
368 filetype = EXT2_FT_DIR << 8;
369 /*
370 * Set up entry for '.'
371 */
372 dir->inode = dir_ino;
373 dir->name_len = 1 | filetype;
374 dir->name[0] = '.';
375 rec_len = dir->rec_len - EXT2_DIR_REC_LEN(1);
376 dir->rec_len = EXT2_DIR_REC_LEN(1);
377
378 /*
379 * Set up entry for '..'
380 */
381 dir = (struct ext2_dir_entry *) (buf + dir->rec_len);
382 dir->rec_len = rec_len;
383 dir->inode = parent_ino;
384 dir->name_len = 2 | filetype;
385 dir->name[0] = '.';
386 dir->name[1] = '.';
387 }
388
389 *block = buf;
390
391 return true;
392}
EXT2_FEATURE_INCOMPAT_FILETYPE
#define EXT2_FEATURE_INCOMPAT_FILETYPE
Definition: ext2_fs.h:471
PEXT2_DIR_ENTRY
struct ext3_dir_entry * PEXT2_DIR_ENTRY
Definition: ext2fs.h:108
EXT2_FT_DIR
#define EXT2_FT_DIR
Definition: ext2_fs.h:531
ext2_dir_entry
Definition: ext2_fs.h:492
ext2_dir_entry::rec_len
__u16 rec_len
Definition: ext2_fs.h:494
ext3_dir_entry
Definition: ext3_fs.h:761

Referenced by ext2_mkdir().

◆ ext2_new_inode()

bool ext2_new_inode ( PEXT2_FILESYS  fs,
ULONG  dir,
int  mode,
PEXT2_INODE_BITMAP  map,
ULONG *  ret 
)

Definition at line 84 of file Inode.c.

86{
87 ULONG dir_group = 0;
88 ULONG i;
89 ULONG start_inode;
90
91 if (!map)
92 map = fs->inode_map;
93
94 if (!map)
95 return false;
96
97 if (dir > 0)
98 dir_group = (dir - 1) / EXT2_INODES_PER_GROUP(fs->ext2_sb);
99
100 start_inode = (dir_group * EXT2_INODES_PER_GROUP(fs->ext2_sb)) + 1;
101
102 if (start_inode < EXT2_FIRST_INODE(fs->ext2_sb))
103 start_inode = EXT2_FIRST_INODE(fs->ext2_sb);
104
105 i = start_inode;
106
107 do
108 {
109 if (!ext2_test_inode_bitmap(map, i))
110 break;
111
112 i++;
113
114 if (i > fs->ext2_sb->s_inodes_count)
115 i = EXT2_FIRST_INODE(fs->ext2_sb);
116
117 } while (i != start_inode);
118
119 if (ext2_test_inode_bitmap(map, i))
120 return false;
121
122 *ret = i;
123
124 return true;
125}
ext2_test_inode_bitmap
bool ext2_test_inode_bitmap(PEXT2_BLOCK_BITMAP bitmap, ULONG inode)
Definition: Bitmap.c:93

Referenced by ext2_mkdir().

◆ ext2_nt_time()

LONGLONG ext2_nt_time ( ULONG  i_time)

◆ ext2_print_super()

void ext2_print_super ( PEXT2_SUPER_BLOCK  pExt2Sb)

Definition at line 20 of file Super.c.

21{
22 int i;
23
24 DPRINT("\nExt2 Super Block Details ...\n\n");
25 DPRINT(" Inode Count: %lu\n", pExt2Sb->s_inodes_count);
26 DPRINT(" Block Count: %lu\n", pExt2Sb->s_blocks_count);
27 DPRINT(" Reserved Block Count: %lu\n", pExt2Sb->s_r_blocks_count);
28 DPRINT(" Free Blocks: %lu\n", pExt2Sb->s_free_blocks_count);
29 DPRINT(" Free Inodes: %lu\n", pExt2Sb->s_free_inodes_count);
30 DPRINT(" First Data Block: %lu\n", pExt2Sb->s_first_data_block);
31 DPRINT(" Log Block Size: %lu\n", pExt2Sb->s_log_block_size);
32 DPRINT(" Log Frag Size: %ld\n", pExt2Sb->s_log_frag_size);
33 DPRINT(" Blocks per Group: %lu\n", pExt2Sb->s_blocks_per_group);
34 DPRINT(" Fragments per Group: %lu\n", pExt2Sb->s_frags_per_group);
35 DPRINT(" Inodes per Group: %lu\n", pExt2Sb->s_inodes_per_group);
36// DPRINT(" Mount Time: %s", ctime((time_t *) & (pExt2Sb->s_mtime)));
37// DPRINT(" Write Time: %s", ctime((time_t *) & (pExt2Sb->s_wtime)));
38 DPRINT(" Mount Count: %u\n", pExt2Sb->s_mnt_count);
39 DPRINT(" Max Mount Count: %d\n", pExt2Sb->s_max_mnt_count);
40 DPRINT(" Magic Number: %X (%s)\n", pExt2Sb->s_magic,
41 pExt2Sb->s_magic == EXT2_SUPER_MAGIC ? "OK" : "BAD");
42 DPRINT(" File System State: %X\n", pExt2Sb->s_state);
43 DPRINT(" Error Behaviour: %X\n", pExt2Sb->s_errors);
44 DPRINT(" Minor rev: %u\n", pExt2Sb->s_minor_rev_level);
45// DPRINT(" Last Check: %s", ctime((time_t *) & (pExt2Sb->s_lastcheck)));
46 DPRINT(" Check Interval: %lu\n", pExt2Sb->s_checkinterval);
47 DPRINT(" Creator OS: %lu\n", pExt2Sb->s_creator_os);
48 DPRINT(" Revision Level: %lu\n", pExt2Sb->s_rev_level);
49 DPRINT(" Reserved Block Default UID: %u\n", pExt2Sb->s_def_resuid);
50 DPRINT(" Reserved Block Default GID: %u\n", pExt2Sb->s_def_resgid);
51 DPRINT(" uuid = ");
52 for (i=0; i < 16; i++)
53 DbgPrint("%x ", pExt2Sb->s_uuid[i]);
54 DbgPrint("\n");
55
56 DPRINT(" volume label name: ");
57 for (i=0; i < 16; i++)
58 {
59 if (pExt2Sb->s_volume_name[i] == 0)
60 break;
61 DbgPrint("%c", pExt2Sb->s_volume_name[i]);
62 }
63 DbgPrint("\n");
64
65 DPRINT("\n\n");
66}
DbgPrint
#define DbgPrint
Definition: hal.h:12
DPRINT
#define DPRINT
Definition: sndvol32.h:73
ext3_super_block::s_def_resuid
__le16 s_def_resuid
Definition: ext3_fs.h:518
ext3_super_block::s_mnt_count
__le16 s_mnt_count
Definition: ext3_fs.h:506
ext3_super_block::s_minor_rev_level
__le16 s_minor_rev_level
Definition: ext3_fs.h:511
ext3_super_block::s_def_resgid
__le16 s_def_resgid
Definition: ext3_fs.h:519
ext3_super_block::s_uuid
__u8 s_uuid[16]
Definition: ext3_fs.h:541
ext3_super_block::s_volume_name
char s_volume_name[16]
Definition: ext3_fs.h:543

Referenced by Ext2Format().

◆ ext2_read_bitmaps()

bool ext2_read_bitmaps ( PEXT2_FILESYS  fs)

Definition at line 492 of file Bitmap.c.

493{
494
495 if (fs->inode_map && fs->block_map)
496 return 0;
497
498 return read_bitmaps(fs, !fs->inode_map, !fs->block_map);
499}
read_bitmaps
bool read_bitmaps(PEXT2_FILESYS fs, int do_inode, int do_block)
Definition: Bitmap.c:364

◆ ext2_read_block()

bool ext2_read_block ( PEXT2_FILESYS  fs,
ULONG  block,
void *  inbuf 
)

Definition at line 406 of file Memory.c.

407{
408 bool retval = false;
409
410 retval = NT_SUCCESS(Ext2ReadDisk(
411 fs,
412 ((ULONGLONG)block * fs->blocksize),
413 fs->blocksize, (unsigned char *)inbuf));
414
415 return retval;
416}
inbuf
static int inbuf
Definition: adnsresfilter.c:73
ULONGLONG
uint64_t ULONGLONG
Definition: typedefs.h:67

Referenced by ext2_expand_block(), and ext2_get_block().

◆ ext2_read_block_bitmap()

bool ext2_read_block_bitmap ( PEXT2_FILESYS  fs)

Definition at line 487 of file Bitmap.c.

488{
489 return read_bitmaps(fs, 0, 1);
490}

Referenced by ext2_alloc_block().

◆ ext2_read_inode()

bool ext2_read_inode ( PEXT2_FILESYS  pExt2Sys,
ULONG  ino,
ULONG  offset,
PVOID  Buffer,
ULONG  size,
PULONG  dwReturn 
)

Definition at line 494 of file Inode.c.

500{
501 PEXT2_BDL ext2_bdl = NULL;
502 ULONG blocks, i;
503 bool bRet = true;
504 EXT2_INODE ext2_inode;
505 ULONG dwTotal = 0;
506
507 if (!ext2_load_inode(Ext2Sys, ino, &ext2_inode))
508 {
509 return false;
510 }
511
512 blocks = ext2_build_bdl(Ext2Sys, &ext2_inode, offset, size, &ext2_bdl);
513
514 if (blocks <= 0)
515 return false;
516
517
518 for(i = 0; i < blocks; i++)
519 {
520 bRet = NT_SUCCESS(Ext2ReadDisk(
521 Ext2Sys,
522 ext2_bdl[i].Lba,
523 ext2_bdl[i].Length,
524 (PUCHAR)Buffer + ext2_bdl[i].Offset
525 ));
526
527 if (!bRet)
528 break;
529 dwTotal += ext2_bdl[i].Length;
530 }
531
532 *dwReturn = dwTotal;
533
534 if (ext2_bdl)
535 RtlFreeHeap(RtlGetProcessHeap(), 0, ext2_bdl);
536
537 return bRet;
538}
ext2_build_bdl
ULONG ext2_build_bdl(PEXT2_FILESYS Ext2Sys, PEXT2_INODE ext2_inode, IN ULONG offset, IN ULONG size, OUT PEXT2_BDL *ext2_bdl)
Definition: Inode.c:392
Buffer
Definition: bufpool.h:45
blocks
static int blocks
Definition: mkdosfs.c:527
Length
_In_ ULONG _In_ ULONG _In_ ULONG Length
Definition: ntddpcm.h:102
_EXT2_BDL
Definition: Mke2fs.h:191
_EXT2_BDL::Length
ULONG Length
Definition: Mke2fs.h:194
ext2_inode
Definition: ext2_fs.h:224

Referenced by ext2_add_entry().

◆ ext2_read_inode_bitmap()

bool ext2_read_inode_bitmap ( PEXT2_FILESYS  fs)

Definition at line 482 of file Bitmap.c.

483{
484 return read_bitmaps(fs, 1, 0);
485}

◆ ext2_reserve_inodes()

bool ext2_reserve_inodes ( PEXT2_FILESYS  fs)

Definition at line 681 of file Inode.c.

682{
683 ULONG i;
684 int group;
685
686 for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->ext2_sb); i++)
687 {
688 ext2_mark_inode_bitmap(fs->inode_map, i);
689 group = ext2_group_of_ino(fs, i);
690 fs->group_desc[group].bg_free_inodes_count--;
691 fs->ext2_sb->s_free_inodes_count--;
692 }
693
694 return true;
695}
EXT2_ROOT_INO
#define EXT2_ROOT_INO
Definition: ext2_fs.h:59

Referenced by Ext2Format().

◆ ext2_save_inode()

bool ext2_save_inode ( PEXT2_FILESYS  pExt2Sys,
ULONG  no,
PEXT2_INODE  pInode 
)

Definition at line 59 of file Inode.c.

60{
61 LONGLONG offset;
62 bool bRet = false;
63
64 if (ext2_get_inode_lba(Ext2Sys, no, &offset))
65 {
66 bRet = NT_SUCCESS(Ext2WriteDisk(
67 Ext2Sys,
68 offset,
69 sizeof(EXT2_INODE),
70 (unsigned char *)pInode));
71 }
72
73 return bRet;
74}

Referenced by create_bad_block_inode(), create_lost_and_found(), create_root_dir(), ext2_mkdir(), and ext2_write_inode().

◆ ext2_set_bit()

bool ext2_set_bit ( int  nr,
void *  addr 
)

Definition at line 18 of file Bitmap.c.

19{
20 int mask;
21 unsigned char *ADDR = (unsigned char *) addr;
22
23 ADDR += nr >> 3;
24 mask = 1 << (nr & 0x07);
25 *ADDR |= mask;
26
27 return true;
28}

Referenced by ext2_mark_bitmap(), and ext2_write_block_bitmap().

◆ ext2_test_bit()

bool ext2_test_bit ( int  nr,
void *  addr 
)

Definition at line 41 of file Bitmap.c.

42{
43 int mask;
44 const unsigned char *ADDR = (const unsigned char *) addr;
45
46 ADDR += nr >> 3;
47 mask = 1 << (nr & 0x07);
48
49 return ((mask & *ADDR) != 0);
50}

Referenced by ext2_test_block_bitmap(), and ext2_test_inode_bitmap().

◆ ext2_test_block_bitmap()

bool ext2_test_block_bitmap ( PEXT2_BLOCK_BITMAP  bitmap,
ULONG  block 
)

Definition at line 73 of file Bitmap.c.

75{
76 return ext2_test_bit(block - bitmap->start, bitmap->bitmap);
77}
ext2_test_bit
bool ext2_test_bit(int nr, void *addr)
Definition: Bitmap.c:41

Referenced by ext2_new_block(), and ext2_test_block_bitmap_range().

◆ ext2_test_block_bitmap_range()

bool ext2_test_block_bitmap_range ( PEXT2_BLOCK_BITMAP  bitmap,
ULONG  block,
int  num 
)

Definition at line 80 of file Bitmap.c.

82{
83 int i;
84
85 for (i=0; i < num; i++)
86 {
87 if (ext2_test_block_bitmap(bitmap, block+i))
88 return false;
89 }
90 return true;
91}

Referenced by ext2_get_free_blocks().

◆ ext2_test_inode_bitmap()

bool ext2_test_inode_bitmap ( PEXT2_BLOCK_BITMAP  bitmap,
ULONG  inode 
)

Definition at line 93 of file Bitmap.c.

95{
96 return ext2_test_bit(inode - bitmap->start, bitmap->bitmap);
97}

Referenced by ext2_new_inode().

◆ ext2_unix_time()

ULONG ext2_unix_time ( LONGLONG  n_time)

◆ ext2_unmark_bitmap()

bool ext2_unmark_bitmap ( PEXT2_BITMAP  bitmap,
ULONG  bitno 
)

Definition at line 62 of file Bitmap.c.

63{
64 if ((bitno < bitmap->start) || (bitno > bitmap->end))
65 {
66 return false;
67 }
68
69 return ext2_clear_bit(bitno - bitmap->start, bitmap->bitmap);
70}
ext2_clear_bit
bool ext2_clear_bit(int nr, void *addr)
Definition: Bitmap.c:30

◆ ext2_write_bitmaps()

bool ext2_write_bitmaps ( PEXT2_FILESYS  fs)

Definition at line 342 of file Bitmap.c.

343{
344 bool retval;
345
346 if (fs->block_map) // && ext2fs_test_bb_dirty(fs))
347 {
348 retval = ext2_write_block_bitmap(fs);
349 if (!retval)
350 return retval;
351 }
352
353 if (fs->inode_map) // && ext2fs_test_ib_dirty(fs))
354 {
355 retval = ext2_write_inode_bitmap(fs);
356 if (!retval)
357 return retval;
358 }
359
360 return true;
361}
ext2_write_block_bitmap
bool ext2_write_block_bitmap(PEXT2_FILESYS fs)
Definition: Bitmap.c:270
ext2_write_inode_bitmap
bool ext2_write_inode_bitmap(PEXT2_FILESYS fs)
Definition: Bitmap.c:216

Referenced by ext2_flush().

◆ ext2_write_block()

bool ext2_write_block ( PEXT2_FILESYS  fs,
ULONG  block,
void *  inbuf 
)

Definition at line 394 of file Memory.c.

395{
396 bool retval = false;
397
398 retval = NT_SUCCESS(Ext2WriteDisk(
399 fs,
400 ((ULONGLONG)block * fs->blocksize),
401 fs->blocksize, (unsigned char *)inbuf));
402
403 return retval;
404}

Referenced by create_lost_and_found(), ext2_expand_block(), and ext2_mkdir().

◆ ext2_write_block_bitmap()

bool ext2_write_block_bitmap ( PEXT2_FILESYS  fs)

Definition at line 270 of file Bitmap.c.

271{
272 ULONG i;
273 int j;
274 int nbytes;
275 int nbits;
276 bool retval;
277 char *block_bitmap = fs->block_map->bitmap;
278 char *bitmap_block = NULL;
279 ULONG blk;
280
281 if (!block_bitmap)
282 return false;
283
284 nbytes = EXT2_BLOCKS_PER_GROUP(fs->ext2_sb) / 8;
285
286 bitmap_block = (char *)RtlAllocateHeap(RtlGetProcessHeap(), 0, fs->blocksize);
287 if (!bitmap_block)
288 return false;
289
290 memset(bitmap_block, 0xff, fs->blocksize);
291
292 for (i = 0; i < fs->group_desc_count; i++)
293 {
294 memcpy(bitmap_block, block_bitmap, nbytes);
295
296 if (i == fs->group_desc_count - 1)
297 {
298 /* Force bitmap padding for the last group */
299 nbits = (int) ((fs->ext2_sb->s_blocks_count
300 - fs->ext2_sb->s_first_data_block)
301 % EXT2_BLOCKS_PER_GROUP(fs->ext2_sb));
302
303 if (nbits)
304 {
305 for (j = nbits; j < fs->blocksize * 8; j++)
306 {
307 ext2_set_bit(j, bitmap_block);
308 }
309 }
310 }
311
312 blk = fs->group_desc[i].bg_block_bitmap;
313
314 if (blk)
315 {
316#ifdef EXT2_BIG_ENDIAN_BITMAPS
317 if (!((fs->flags & EXT2_FLAG_SWAP_BYTES) ||
318 (fs->flags & EXT2_FLAG_SWAP_BYTES_WRITE)))
319 ext2_swap_bitmap(fs, bitmap_block, nbytes);
320#endif
321 retval = NT_SUCCESS(Ext2WriteDisk(
322 fs,
323 ((ULONGLONG)blk * fs->blocksize),
324 fs->blocksize,
325 (unsigned char *)bitmap_block));
326
327 if (!retval)
328 {
329 RtlFreeHeap(RtlGetProcessHeap(), 0, bitmap_block);
330 return false;
331 }
332 }
333
334 block_bitmap += nbytes;
335 }
336
337 RtlFreeHeap(RtlGetProcessHeap(), 0, bitmap_block);
338
339 return true;
340}
int
unsigned int(__cdecl typeof(jpeg_read_scanlines))(struct jpeg_decompress_struct *
Definition: typeof.h:31

Referenced by ext2_write_bitmaps().

◆ ext2_write_inode()

bool ext2_write_inode ( PEXT2_FILESYS  pExt2Sys,
ULONG  ino,
ULONG  offset,
PVOID  Buffer,
ULONG  size,
PULONG  dwReturn 
)

Definition at line 541 of file Inode.c.

547{
548 PEXT2_BDL ext2_bdl = NULL;
549 ULONG blocks, i;
550 bool bRet = true;
551 EXT2_INODE inode;
552 ULONG dwTotal = 0;
553 ULONG dwBlk = 0;
554 ULONG TotalBlks;
555
556 blocks = (size + offset + Ext2Sys->blocksize - 1) / Ext2Sys->blocksize;
557
558 if (!ext2_load_inode(Ext2Sys, ino, &inode))
559 {
560 return false;
561 }
562
563 TotalBlks = inode.i_blocks / (Ext2Sys->blocksize / SECTOR_SIZE);
564 TotalBlks = Ext2DataBlocks(Ext2Sys, TotalBlks);
565
566 if (blocks > TotalBlks)
567 {
568 for (i=0; i < (blocks - TotalBlks); i++)
569 {
570 if (ext2_alloc_block(Ext2Sys, 0, &dwBlk) )
571 {
572 ext2_expand_inode(Ext2Sys, &inode, dwBlk);
573 inode.i_blocks += (Ext2Sys->blocksize/SECTOR_SIZE);
574 }
575 }
576 }
577
578 blocks = ext2_build_bdl(Ext2Sys, &inode, offset, size, &ext2_bdl);
579
580 if (blocks <= 0)
581 return false;
582
583 for(i = 0; i < blocks; i++)
584 {
585 bRet = NT_SUCCESS(Ext2WriteDisk(
586 Ext2Sys,
587 ext2_bdl[i].Lba,
588 ext2_bdl[i].Length,
589 (PUCHAR)Buffer + ext2_bdl[i].Offset
590 ));
591
592 if (!bRet)
593 {
594 goto errorout;
595 }
596
597 dwTotal += ext2_bdl[i].Length;
598 }
599
600 *dwReturn = dwTotal;
601
602 if (size + offset > inode.i_size)
603 {
604 inode.i_size = size + offset;
605 }
606
607 ext2_save_inode(Ext2Sys, ino, &inode);
608
609
610errorout:
611
612 if (ext2_bdl)
613 RtlFreeHeap(RtlGetProcessHeap(), 0, ext2_bdl);
614
615 return bRet;
616}
ext2_expand_inode
bool ext2_expand_inode(PEXT2_FILESYS Ext2Sys, PEXT2_INODE Inode, ULONG newBlk)
Definition: Inode.c:212

Referenced by ext2_add_entry().

◆ ext2_write_inode_bitmap()

bool ext2_write_inode_bitmap ( PEXT2_FILESYS  fs)

Definition at line 216 of file Bitmap.c.

217{
218 ULONG i;
219 ULONG nbytes;
220 bool retval;
221 char *inode_bitmap = fs->inode_map->bitmap;
222 char *bitmap_block = NULL;
223 ULONG blk;
224
225 if (!inode_bitmap)
226 return false;
227
228 nbytes = (size_t) ((EXT2_INODES_PER_GROUP(fs->ext2_sb)+7) / 8);
229
230 bitmap_block = (char *)RtlAllocateHeap(RtlGetProcessHeap(), 0, fs->blocksize);
231 if (!bitmap_block) return false;
232
233 memset(bitmap_block, 0xff, fs->blocksize);
234
235 for (i = 0; i < fs->group_desc_count; i++)
236 {
237 memcpy(bitmap_block, inode_bitmap, nbytes);
238 blk = fs->group_desc[i].bg_inode_bitmap;
239
240 if (blk)
241 {
242/*
243#ifdef EXT2_BIG_ENDIAN_BITMAPS
244 if (!((fs->flags & EXT2_FLAG_SWAP_BYTES) ||
245 (fs->flags & EXT2_FLAG_SWAP_BYTES_WRITE)))
246 ext2_swap_bitmap(fs, bitmap_block, nbytes);
247#endif
248*/
249 retval = NT_SUCCESS(Ext2WriteDisk(
250 fs,
251 ((ULONGLONG)blk * fs->blocksize),
252 fs->blocksize,
253 (unsigned char *)bitmap_block));
254
255 if (!retval)
256 {
257 RtlFreeHeap(RtlGetProcessHeap(), 0, bitmap_block);
258 return false;
259 }
260 }
261
262 inode_bitmap += nbytes;
263 }
264
265 RtlFreeHeap(RtlGetProcessHeap(), 0, bitmap_block);
266
267 return true;
268}
size_t
__kernel_size_t size_t
Definition: linux.h:237

Referenced by ext2_write_bitmaps().

◆ Ext2CloseDevice()

NTSTATUS Ext2CloseDevice ( PEXT2_FILESYS  Ext2Sys)

Definition at line 1342 of file Disk.c.

1343{
1344 NTSTATUS Status = STATUS_SUCCESS;
1345
1346 if(Ext2Sys->MediaHandle)
1347 {
1348 Status = NtClose(Ext2Sys->MediaHandle);
1349 }
1350
1351 return Status;
1352}
NTSTATUS
LONG NTSTATUS
Definition: precomp.h:26
Status
Status
Definition: gdiplustypes.h:25
NtClose
NTSTATUS NTAPI NtClose(IN HANDLE Handle)
Definition: obhandle.c:3402
STATUS_SUCCESS
#define STATUS_SUCCESS
Definition: shellext.h:65
_ext2_filesys::MediaHandle
HANDLE MediaHandle
Definition: Mke2fs.h:182

Referenced by Ext2Format().

◆ Ext2DataBlocks()

ULONG Ext2DataBlocks ( PEXT2_FILESYS  Ext2Sys,
ULONG  TotalBlocks 
)

Definition at line 698 of file Mke2fs.c.

699{
700 ULONG dwData[4] = {1, 1, 1, 1};
701 ULONG dwMeta[4] = {0, 0, 0, 0};
702 ULONG DataBlocks = 0;
703 ULONG i, j;
704
705 if (TotalBlocks <= EXT2_NDIR_BLOCKS)
706 {
707 return TotalBlocks;
708 }
709
710 TotalBlocks -= EXT2_NDIR_BLOCKS;
711
712 for (i = 0; i < 4; i++)
713 {
714 dwData[i] = dwData[i] << ((BLOCK_BITS - 2) * i);
715
716 if (i > 0)
717 {
718 dwMeta[i] = 1 + (dwMeta[i - 1] << (BLOCK_BITS - 2));
719 }
720 }
721
722 for( i=1; (i < 4) && (TotalBlocks > 0); i++)
723 {
724 if (TotalBlocks >= (dwData[i] + dwMeta[i]))
725 {
726 TotalBlocks -= (dwData[i] + dwMeta[i]);
727 DataBlocks += dwData[i];
728 }
729 else
730 {
731 ULONG dwDivide = 0;
732 ULONG dwRemain = 0;
733
734 for (j=i; (j > 0) && (TotalBlocks > 0); j--)
735 {
736 dwDivide = (TotalBlocks - 1) / (dwData[j-1] + dwMeta[j-1]);
737 dwRemain = (TotalBlocks - 1) % (dwData[j-1] + dwMeta[j-1]);
738
739 DataBlocks += (dwDivide * dwData[j-1]);
740 TotalBlocks = dwRemain;
741 }
742 }
743 }
744
745 return (DataBlocks + EXT2_NDIR_BLOCKS);
746}
BLOCK_BITS
#define BLOCK_BITS
Definition: Mke2fs.c:695
EXT2_NDIR_BLOCKS
#define EXT2_NDIR_BLOCKS
Definition: ext2_fs.h:177
dwData
static HANDLE ULONG_PTR dwData
Definition: file.c:35

Referenced by create_lost_and_found(), ext2_expand_inode(), and ext2_write_inode().

◆ Ext2DisMountVolume()

NTSTATUS Ext2DisMountVolume ( PEXT2_FILESYS  Ext2Sys)

Definition at line 1260 of file Disk.c.

1261{
1262 NTSTATUS Status;
1263 IO_STATUS_BLOCK IoSb;
1264
1265 Status = NtFsControlFile( Ext2Sys->MediaHandle,
1266 NULL, NULL, NULL, &IoSb,
1267 FSCTL_DISMOUNT_VOLUME,
1268 NULL, 0, NULL, 0 );
1269
1270 if (!NT_SUCCESS(Status))
1271 {
1272 DPRINT1("Mke2fs: Error when dismounting volume ...\n");
1273 goto errorout;
1274 }
1275
1276errorout:
1277
1278 return Status;
1279}
FSCTL_DISMOUNT_VOLUME
#define FSCTL_DISMOUNT_VOLUME
Definition: nt_native.h:834
NtFsControlFile
NTSYSAPI NTSTATUS NTAPI NtFsControlFile(IN HANDLE hFile, IN HANDLE hEvent OPTIONAL, IN PIO_APC_ROUTINE IoApcRoutine OPTIONAL, IN PVOID IoApcContext OPTIONAL, OUT PIO_STATUS_BLOCK pIoStatusBlock, IN ULONG DeviceIoControlCode, IN PVOID InBuffer OPTIONAL, IN ULONG InBufferLength, OUT PVOID OutBuffer OPTIONAL, IN ULONG OutBufferLength)
_IO_STATUS_BLOCK
Definition: env_spec_w32.h:870

Referenced by Ext2Format().

◆ Ext2GetMediaInfo()

NTSTATUS Ext2GetMediaInfo ( PEXT2_FILESYS  Ext2Sys)

Definition at line 1162 of file Disk.c.

1163{
1164 NTSTATUS Status;
1165 IO_STATUS_BLOCK IoSb;
1166
1167 Status = NtDeviceIoControlFile( Ext2Sys->MediaHandle,
1168 NULL, NULL, NULL, &IoSb,
1169 IOCTL_DISK_GET_DRIVE_GEOMETRY,
1170 &(Ext2Sys->DiskGeometry), sizeof(DISK_GEOMETRY),
1171 &(Ext2Sys->DiskGeometry), sizeof(DISK_GEOMETRY));
1172
1173
1174 if (!NT_SUCCESS(Status))
1175 {
1176 goto errorout;
1177 }
1178
1179 Status = NtDeviceIoControlFile( Ext2Sys->MediaHandle,
1180 NULL, NULL, NULL, &IoSb,
1181 IOCTL_DISK_GET_PARTITION_INFO,
1182 &(Ext2Sys->PartInfo), sizeof(PARTITION_INFORMATION),
1183 &(Ext2Sys->PartInfo), sizeof(PARTITION_INFORMATION));
1184
1185 if (!NT_SUCCESS(Status))
1186 {
1187 goto errorout;
1188 }
1189
1190errorout:
1191
1192 return Status;
1193}
IOCTL_DISK_GET_DRIVE_GEOMETRY
#define IOCTL_DISK_GET_DRIVE_GEOMETRY
Definition: cdrw_usr.h:169
NtDeviceIoControlFile
NTSYSAPI NTSTATUS NTAPI NtDeviceIoControlFile(IN HANDLE hFile, IN HANDLE hEvent OPTIONAL, IN PIO_APC_ROUTINE IoApcRoutine OPTIONAL, IN PVOID IoApcContext OPTIONAL, OUT PIO_STATUS_BLOCK pIoStatusBlock, IN ULONG DeviceIoControlCode, IN PVOID InBuffer OPTIONAL, IN ULONG InBufferLength, OUT PVOID OutBuffer OPTIONAL, IN ULONG OutBufferLength)
IOCTL_DISK_GET_PARTITION_INFO
#define IOCTL_DISK_GET_PARTITION_INFO
Definition: ntdddisk.h:106
_DISK_GEOMETRY
Definition: ntdddisk.h:399
_PARTITION_INFORMATION
Definition: ntdddisk.h:407
_ext2_filesys::DiskGeometry
DISK_GEOMETRY DiskGeometry
Definition: Mke2fs.h:184
_ext2_filesys::PartInfo
PARTITION_INFORMATION PartInfo
Definition: Mke2fs.h:186

Referenced by Ext2Format().

◆ Ext2LockVolume()

NTSTATUS Ext2LockVolume ( PEXT2_FILESYS  Ext2Sys)

Definition at line 1212 of file Disk.c.

1213{
1214 NTSTATUS Status;
1215 IO_STATUS_BLOCK IoSb;
1216
1217 Status = NtFsControlFile( Ext2Sys->MediaHandle,
1218 NULL, NULL, NULL, &IoSb,
1219 FSCTL_LOCK_VOLUME,
1220 NULL, 0, NULL, 0 );
1221
1222 if (!NT_SUCCESS(Status))
1223 {
1224 DPRINT1("Mke2fs: Error when locking volume: Status = %lxh %s...\n",
1225 Status, Ext2StatusToString(Status));
1226
1227 goto errorout;
1228 }
1229
1230errorout:
1231
1232 return Status;
1233}
Ext2StatusToString
PCCH Ext2StatusToString(IN NTSTATUS Status)
Definition: Disk.c:19
FSCTL_LOCK_VOLUME
#define FSCTL_LOCK_VOLUME
Definition: nt_native.h:832

◆ Ext2OpenDevice()

NTSTATUS Ext2OpenDevice ( PEXT2_FILESYS  Ext2Sys,
PUNICODE_STRING  DeviceName 
)

Definition at line 1282 of file Disk.c.

1284{
1285 NTSTATUS Status;
1286 OBJECT_ATTRIBUTES ObjectAttributes;
1287 HANDLE FileHandle;
1288 IO_STATUS_BLOCK Iosb;
1289
1290 //
1291 // Setup the name in an object attributes structure.
1292 // Note that we create a name that is case INsensitive
1293 //
1294 InitializeObjectAttributes(&ObjectAttributes, // ptr to structure
1295 DeviceName, // ptr to file spec
1296 OBJ_CASE_INSENSITIVE, // attributes
1297 NULL, // root directory handle
1298 NULL ); // ptr to security descriptor
1299
1300 //
1301 // Do the create. In this particular case, we'll have the I/O Manager
1302 // make our write requests syncrhonous for our convenience.
1303 //
1304 Status = NtCreateFile(&FileHandle, // returned file handle
1305 (GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE), // desired access
1306 &ObjectAttributes, // ptr to object attributes
1307 &Iosb, // ptr to I/O status block
1308 0, // allocation size
1309 FILE_ATTRIBUTE_NORMAL, // file attributes
1310 FILE_SHARE_WRITE | FILE_SHARE_READ, // share access
1311 FILE_OPEN /*FILE_SUPERSEDE*/, // create disposition
1312 FILE_SYNCHRONOUS_IO_NONALERT, // create options
1313 NULL, // ptr to extended attributes
1314 0); // length of ea buffer
1315
1316 //
1317 // Check the system service status
1318 //
1319 if( !NT_SUCCESS(Status) )
1320 {
1321 DPRINT1("Mke2fs: Create system service failed status = 0x%lx\n", Status);
1322 return Status;
1323 }
1324
1325
1326 //
1327 // Check the returned status too...
1328 //
1329 if(!NT_SUCCESS(Iosb.Status) )
1330 {
1331 DPRINT1("Mke2fs: Create failed with status = 0x%lx\n",Iosb.Status);
1332 return Status;
1333 }
1334
1335 Ext2Sys->MediaHandle = FileHandle;
1336
1337 return Status;
1338}
ObjectAttributes
IN PUNICODE_STRING IN POBJECT_ATTRIBUTES ObjectAttributes
Definition: conport.c:36
GENERIC_READ
#define GENERIC_READ
Definition: compat.h:135
FILE_ATTRIBUTE_NORMAL
#define FILE_ATTRIBUTE_NORMAL
Definition: compat.h:137
FILE_SHARE_READ
#define FILE_SHARE_READ
Definition: compat.h:136
Iosb
return Iosb
Definition: create.c:4403
FileHandle
_Must_inspect_result_ _In_opt_ PFLT_INSTANCE _Out_ PHANDLE FileHandle
Definition: fltkernel.h:1231
FILE_OPEN
#define FILE_OPEN
Definition: from_kernel.h:54
FILE_SYNCHRONOUS_IO_NONALERT
#define FILE_SYNCHRONOUS_IO_NONALERT
Definition: from_kernel.h:31
OBJ_CASE_INSENSITIVE
#define OBJ_CASE_INSENSITIVE
Definition: winternl.h:228
InitializeObjectAttributes
#define InitializeObjectAttributes(p, n, a, r, s)
Definition: reg.c:106
FILE_SHARE_WRITE
#define FILE_SHARE_WRITE
Definition: nt_native.h:681
SYNCHRONIZE
#define SYNCHRONIZE
Definition: nt_native.h:61
NtCreateFile
NTSTATUS NTAPI NtCreateFile(OUT PHANDLE FileHandle, IN ACCESS_MASK DesiredAccess, IN POBJECT_ATTRIBUTES ObjectAttributes, OUT PIO_STATUS_BLOCK IoStatusBlock, IN PLARGE_INTEGER AllocationSize OPTIONAL, IN ULONG FileAttributes, IN ULONG ShareAccess, IN ULONG CreateDisposition, IN ULONG CreateOptions, IN PVOID EaBuffer OPTIONAL, IN ULONG EaLength)
GENERIC_WRITE
#define GENERIC_WRITE
Definition: nt_native.h:90
_OBJECT_ATTRIBUTES
Definition: umtypes.h:184
DeviceName
_Must_inspect_result_ _In_ PWDFDEVICE_INIT _In_opt_ PCUNICODE_STRING DeviceName
Definition: wdfdevice.h:3281

Referenced by Ext2Format().

◆ Ext2ReadDisk()

NTSTATUS Ext2ReadDisk ( PEXT2_FILESYS  Ext2Sys,
ULONGLONG  Offset,
ULONG  Length,
PVOID  Buffer 
)

Definition at line 964 of file Disk.c.

968{
969 LARGE_INTEGER Address;
970 NTSTATUS Status;
971 ULONG AlignedLength;
972
973 IO_STATUS_BLOCK IoStatus;
974
975 PVOID NonPagedBuffer = NULL;
976
977 ASSERT(Buffer != NULL);
978
979#if 0
980 if (Ext2Sys->bFile)
981 {
982 Address.QuadPart = Offset;
983
984 Status = NtReadFile( Ext2Sys->MediaHandle,
985 NULL,
986 NULL,
987 NULL,
988 &IoStatus,
989 Buffer,
990 Length,
991 &Address,
992 NULL );
993 }
994 else
995#endif
996 {
997 Address.QuadPart = Offset & (~((ULONGLONG)SECTOR_SIZE - 1));
998
999 AlignedLength = (Length + SECTOR_SIZE - 1)&(~(SECTOR_SIZE - 1));
1000
1001 AlignedLength += ((ULONG)(Offset - Address.QuadPart) + SECTOR_SIZE - 1)
1002 & (~(SECTOR_SIZE - 1));
1003
1004 NonPagedBuffer = RtlAllocateHeap(RtlGetProcessHeap(), 0, AlignedLength);
1005 if (!NonPagedBuffer)
1006 {
1007 Status = STATUS_INSUFFICIENT_RESOURCES;
1008 goto errorout;
1009 }
1010
1011 Status = NtReadFile( Ext2Sys->MediaHandle,
1012 NULL,
1013 NULL,
1014 NULL,
1015 &IoStatus,
1016 NonPagedBuffer,
1017 AlignedLength,
1018 &Address,
1019 NULL );
1020
1021 if (!NT_SUCCESS(Status))
1022 {
1023 goto errorout;
1024 }
1025
1026 RtlCopyMemory( Buffer,
1027 (PUCHAR)NonPagedBuffer + (ULONG)(Offset - Address.QuadPart),
1028 Length );
1029 }
1030
1031errorout:
1032
1033 if (NonPagedBuffer)
1034 RtlFreeHeap(RtlGetProcessHeap(), 0, NonPagedBuffer);
1035
1036 return Status;
1037}
ASSERT
#define ASSERT(a)
Definition: mode.c:44
IoStatus
__in UCHAR __in POWER_STATE __in_opt PVOID __in PIO_STATUS_BLOCK IoStatus
Definition: mxum.h:159
Address
static WCHAR Address[46]
Definition: ping.c:68
NtReadFile
NTSTATUS NTAPI NtReadFile(HANDLE FileHandle, HANDLE Event, PIO_APC_ROUTINE ApcRoutine, PVOID ApcContext, PIO_STATUS_BLOCK IoStatusBlock, PVOID Buffer, ULONG Length, PLARGE_INTEGER ByteOffset, PULONG Key)
RtlCopyMemory
#define RtlCopyMemory(Destination, Source, Length)
Definition: typedefs.h:263
STATUS_INSUFFICIENT_RESOURCES
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158

◆ Ext2TotalBlocks()

ULONG Ext2TotalBlocks ( PEXT2_FILESYS  Ext2Sys,
ULONG  DataBlocks 
)

Definition at line 750 of file Mke2fs.c.

751{
752 ULONG dwData[4] = {1, 1, 1, 1};
753 ULONG dwMeta[4] = {0, 0, 0, 0};
754 ULONG TotalBlocks = 0;
755 ULONG i, j;
756
757 if (DataBlocks <= EXT2_NDIR_BLOCKS)
758 {
759 return DataBlocks;
760 }
761
762 DataBlocks -= EXT2_NDIR_BLOCKS;
763
764 for (i = 0; i < 4; i++)
765 {
766 dwData[i] = dwData[i] << ((BLOCK_BITS - 2) * i);
767
768 if (i > 0)
769 {
770 dwMeta[i] = 1 + (dwMeta[i - 1] << (BLOCK_BITS - 2));
771 }
772 }
773
774 for( i=1; (i < 4) && (DataBlocks > 0); i++)
775 {
776 if (DataBlocks >= dwData[i])
777 {
778 DataBlocks -= dwData[i];
779 TotalBlocks += (dwData[i] + dwMeta[i]);
780 }
781 else
782 {
783 ULONG dwDivide = 0;
784 ULONG dwRemain = 0;
785
786 for (j=i; (j > 0) && (DataBlocks > 0); j--)
787 {
788 dwDivide = (DataBlocks) / (dwData[j-1]);
789 dwRemain = (DataBlocks) % (dwData[j-1]);
790
791 TotalBlocks += (dwDivide * (dwData[j-1] + dwMeta[j-1]) + 1);
792 DataBlocks = dwRemain;
793 }
794 }
795 }
796
797 return (TotalBlocks + EXT2_NDIR_BLOCKS);
798}

Referenced by create_lost_and_found().

◆ Ext2UnLockVolume()

NTSTATUS Ext2UnLockVolume ( PEXT2_FILESYS  Ext2Sys)

Definition at line 1237 of file Disk.c.

1238{
1239 NTSTATUS Status;
1240 IO_STATUS_BLOCK IoSb;
1241
1242 Status = NtFsControlFile( Ext2Sys->MediaHandle,
1243 NULL, NULL, NULL, &IoSb,
1244 FSCTL_UNLOCK_VOLUME,
1245 NULL, 0, NULL, 0 );
1246
1247 if (!NT_SUCCESS(Status))
1248 {
1249 DPRINT1("Mke2fs: Error when unlocking volume ...\n");
1250 goto errorout;
1251 }
1252
1253errorout:
1254
1255 return Status;
1256}
FSCTL_UNLOCK_VOLUME
#define FSCTL_UNLOCK_VOLUME
Definition: nt_native.h:833

Referenced by Ext2Format().

◆ Ext2WriteDisk()

NTSTATUS Ext2WriteDisk ( PEXT2_FILESYS  Ext2Sys,
ULONGLONG  Offset,
ULONG  Length,
PVOID  Buffer 
)

Definition at line 1059 of file Disk.c.

1063{
1064 LARGE_INTEGER Address;
1065 NTSTATUS Status;
1066 ULONG AlignedLength;
1067
1068 IO_STATUS_BLOCK IoStatus;
1069
1070 PVOID NonPagedBuffer = NULL;
1071
1072 ASSERT(Buffer != NULL);
1073
1074#if 0
1075 if (Ext2Sys->bFile)
1076 {
1077 Address.QuadPart = Offset;
1078
1079 Status = NtWriteFile( Ext2Sys->MediaHandle,
1080 NULL,
1081 NULL,
1082 NULL,
1083 &IoStatus,
1084 Buffer,
1085 Length,
1086 &Address,
1087 NULL );
1088 }
1089 else
1090#endif
1091 {
1092 Address.QuadPart = Offset & (~((ULONGLONG)SECTOR_SIZE - 1));
1093
1094 AlignedLength = (Length + SECTOR_SIZE - 1)&(~(SECTOR_SIZE - 1));
1095
1096 AlignedLength += ((ULONG)(Offset - Address.QuadPart) + SECTOR_SIZE - 1)
1097 & (~(SECTOR_SIZE - 1));
1098
1099 NonPagedBuffer = RtlAllocateHeap(RtlGetProcessHeap(), 0, AlignedLength);
1100 if (!NonPagedBuffer)
1101 {
1102 Status = STATUS_INSUFFICIENT_RESOURCES;
1103 goto errorout;
1104 }
1105
1106 if ((AlignedLength != Length) || (Address.QuadPart != (LONGLONG)Offset))
1107 {
1108 Status = NtReadFile( Ext2Sys->MediaHandle,
1109 NULL,
1110 NULL,
1111 NULL,
1112 &IoStatus,
1113 NonPagedBuffer,
1114 AlignedLength,
1115 &Address,
1116 NULL );
1117
1118 if (!NT_SUCCESS(Status))
1119 {
1120 goto errorout;
1121 }
1122 }
1123
1124 RtlCopyMemory( (PUCHAR)NonPagedBuffer + (ULONG)(Offset - Address.QuadPart),
1125 Buffer, Length );
1126
1127 Status = NtWriteFile( Ext2Sys->MediaHandle,
1128 NULL,
1129 NULL,
1130 NULL,
1131 &IoStatus,
1132 NonPagedBuffer,
1133 AlignedLength,
1134 &Address,
1135 NULL );
1136 }
1137
1138errorout:
1139
1140 if (NonPagedBuffer)
1141 RtlFreeHeap(RtlGetProcessHeap(), 0, NonPagedBuffer);
1142
1143 return Status;
1144}
NtWriteFile
NTSYSAPI NTSTATUS NTAPI NtWriteFile(IN HANDLE hFile, IN HANDLE hEvent OPTIONAL, IN PIO_APC_ROUTINE IoApcRoutine OPTIONAL, IN PVOID IoApcContext OPTIONAL, OUT PIO_STATUS_BLOCK pIoStatusBlock, IN PVOID WriteBuffer, IN ULONG WriteBufferLength, IN PLARGE_INTEGER FileOffset OPTIONAL, IN PULONG LockOperationKey OPTIONAL)

Referenced by create_journal_dev(), ext2_alloc_block(), ext2_flush(), ext2_save_inode(), ext2_write_block(), ext2_write_block_bitmap(), ext2_write_inode(), ext2_write_inode_bitmap(), write_primary_superblock(), zap_sector(), and zero_blocks().

◆ parase_cmd()

bool parase_cmd ( int  argc,
char *  argv[],
PEXT2_FILESYS  pExt2Sys 
)

◆ uuid_generate()

void uuid_generate ( __u8 *  uuid)

Definition at line 17 of file Uuid.c.

18{
19#if 0
20 UuidCreate((UUID *) uuid);
21#else
22 RtlZeroMemory(uuid, 16);
23#endif
24}
uuid
Definition: msctf.idl:532
UuidCreate
RPC_STATUS WINAPI UuidCreate(UUID *Uuid)
Definition: rpcrt4_main.c:330
RtlZeroMemory
#define RtlZeroMemory(Destination, Length)
Definition: typedefs.h:262

Referenced by Ext2Format().

◆ write_inode_tables()

bool write_inode_tables ( PEXT2_FILESYS  fs)

Definition at line 221 of file Memory.c.

222{
223 bool retval;
224 ULONG blk, num;
225 int i;
226
227 for (i = 0; (ULONG)i < fs->group_desc_count; i++)
228 {
229 blk = fs->group_desc[i].bg_inode_table;
230 num = fs->inode_blocks_per_group;
231
232 retval = zero_blocks(fs, blk, num, &blk, &num);
233 if (!retval)
234 {
235 DPRINT1("\nMke2fs: Could not write %lu blocks "
236 "in inode table starting at %lu.\n",
237 num, blk);
238
239 zero_blocks(0, 0, 0, 0, 0);
240 return false;
241 }
242 }
243
244 zero_blocks(0, 0, 0, 0, 0);
245
246 return true;
247}
zero_blocks
bool zero_blocks(PEXT2_FILESYS fs, ULONG blk, ULONG num, ULONG *ret_blk, ULONG *ret_count)
Definition: Mke2fs.c:122

Referenced by Ext2Format().

◆ zero_blocks()

bool zero_blocks ( PEXT2_FILESYS  fs,
ULONG  blk,
ULONG  num,
ULONG *  ret_blk,
ULONG *  ret_count 
)

Definition at line 122 of file Mke2fs.c.

124{
125 ULONG j, count;
126 static unsigned char *buf;
127 bool retval;
128
129 /* If fs is null, clean up the static buffer and return */
130 if (!fs)
131 {
132 if (buf)
133 {
134 RtlFreeHeap(RtlGetProcessHeap(), 0, buf);
135 buf = 0;
136 }
137 return true;
138 }
139
140#define STRIDE_LENGTH 8
141
142 /* Allocate the zeroizing buffer if necessary */
143 if (!buf)
144 {
145 buf = (unsigned char *)
146 RtlAllocateHeap(RtlGetProcessHeap(), 0, fs->blocksize * STRIDE_LENGTH);
147 if (!buf)
148 {
149 DPRINT1("Mke2fs: while allocating zeroizing buffer");
150 if (ret_blk)
151 *ret_blk = blk;
152 return false;
153 }
154 memset(buf, 0, fs->blocksize * STRIDE_LENGTH);
155 }
156
157 /* OK, do the write loop */
158 for (j=0; j < num; j += STRIDE_LENGTH, blk += STRIDE_LENGTH)
159 {
160 if (num-j > STRIDE_LENGTH)
161 count = STRIDE_LENGTH;
162 else
163 count = num - j;
164
165 retval = NT_SUCCESS(Ext2WriteDisk(
166 fs,
167 ((ULONGLONG)blk * fs->blocksize),
168 count * fs->blocksize,
169 buf));
170
171 if (!retval)
172 {
173 if (ret_count)
174 *ret_count = count;
175
176 if (ret_blk)
177 *ret_blk = blk;
178
179 return retval;
180 }
181 }
182
183 return true;
184}
STRIDE_LENGTH
#define STRIDE_LENGTH
count
GLuint GLuint GLsizei count
Definition: gl.h:1545

Referenced by create_journal_dev(), Ext2Format(), and write_inode_tables().