reactos/drivers/filesystems/fs_rec/ext2.h

   1 /*
   2  * COPYRIGHT:        See COPYING in the top level directory
   3  * PROJECT:          ReactOS File System Recognizer
   4  * FILE:             drivers/filesystems/fs_rec/ext2.h
   5  * PURPOSE:          EXT2 Header File
   6  * PROGRAMMER:       Pierre Schweitzer (pierre@reactos.org)
   7  */
   8
   9 #include <pshpack1.h>
  10 typedef struct _EXT2_SUPER_BLOCK {
  11     ULONG InodesCount;
  12     ULONG BlocksCount;
  13     ULONG ReservedBlocksCount;
  14     ULONG FreeBlocksCount;
  15     ULONG FreeInodesCount;
  16     ULONG FirstDataBlock;
  17     ULONG LogBlockSize;
  18     LONG LogFragSize;
  19     ULONG BlocksPerGroup;
  20     ULONG FragsPerGroup;
  21     ULONG InodesPerGroup;
  22     ULONG MountTime;
  23     ULONG WriteTime;
  24     USHORT MountCount;
  25     SHORT MaxMountCount;
  26     USHORT Magic;
  27     USHORT State;
  28     USHORT Errors;
  29     USHORT MinorRevLevel;
  30     ULONG LastCheck;
  31     ULONG CheckInterval;
  32     ULONG CreatorOS;
  33     ULONG RevLevel;
  34     USHORT DefResUid;
  35     USHORT DefResGid;
  36         // Partial
  37 } EXT2_SUPER_BLOCK, *PEXT2_SUPER_BLOCK;
  38 #include <poppack.h>
  39
  40 C_ASSERT(FIELD_OFFSET(EXT2_SUPER_BLOCK, FreeInodesCount) == 0x10);
  41 C_ASSERT(FIELD_OFFSET(EXT2_SUPER_BLOCK, BlocksPerGroup) == 0x20);
  42 C_ASSERT(FIELD_OFFSET(EXT2_SUPER_BLOCK, WriteTime) == 0x30);
  43 C_ASSERT(FIELD_OFFSET(EXT2_SUPER_BLOCK, LastCheck) == 0x40);
  44 C_ASSERT(FIELD_OFFSET(EXT2_SUPER_BLOCK, DefResUid) == 0x50);
  45
  46 #define EXT2_SUPER_MAGIC 0xEF53
  47 #define EXT2_SB_OFFSET 0x400
  48 #define EXT2_SB_SIZE 0x400