fs/ntfs/ntfstypes.h

   1 /*
   2  *  types.h
   3  *  This file defines four things:
   4  *   - generic platform independent fixed-size types (e.g. ntfs_u32)
   5  *   - specific fixed-size types (e.g. ntfs_offset_t)
   6  *   - macros that read and write those types from and to byte arrays
   7  *   - types derived from OS specific ones
   8  *
   9  *  Copyright (C) 1996,1998 Martin von Löwis
  10  */
  11
  12 #ifdef NTFS_IN_LINUX_KERNEL
  13 /* get installed types if we compile the kernel*/
  14 #include <linux/fs.h>
  15 #endif
  16
  17 /* We don't need to define __LITTLE_ENDIAN, as we use
  18    <asm/byteorder>. */
  19
  20 #include "ntfsendian.h"
  21 #include <asm/types.h>
  22
  23 /* integral types */
  24 #ifndef NTFS_INTEGRAL_TYPES
  25 #define NTFS_INTEGRAL_TYPES
  26 typedef u8  ntfs_u8;
  27 typedef u16 ntfs_u16;
  28 typedef u32 ntfs_u32;
  29 typedef u64 ntfs_u64;
  30 typedef s8  ntfs_s8;
  31 typedef s16 ntfs_s16;
  32 typedef s32 ntfs_s32;
  33 typedef s64 ntfs_s64;
  34 #endif
  35
  36 /* unicode character type */
  37 #ifndef NTFS_WCHAR_T
  38 #define NTFS_WCHAR_T
  39 typedef u16 ntfs_wchar_t;
  40 #endif
  41 /* file offset */
  42 #ifndef NTFS_OFFSET_T
  43 #define NTFS_OFFSET_T
  44 typedef u64 ntfs_offset_t;
  45 #endif
  46 /* UTC */
  47 #ifndef NTFS_TIME64_T
  48 #define NTFS_TIME64_T
  49 typedef u64 ntfs_time64_t;
  50 #endif
  51 /* This is really unsigned long long. So we support only volumes up to 2 TB */
  52 #ifndef NTFS_CLUSTER_T
  53 #define NTFS_CLUSTER_T
  54 typedef u32 ntfs_cluster_t;
  55 #endif
  56
  57 /* architecture independent macros */
  58
  59 /* PUTU32 would not clear all bytes */
  60 #define NTFS_PUTINUM(p,i)    NTFS_PUTU64(p,i->i_number);\
  61                              NTFS_PUTU16(((char*)p)+6,i->sequence_number)
  62
  63 /* system dependent types */
  64 #include <asm/posix_types.h>
  65 #ifndef NTMODE_T
  66 #define NTMODE_T
  67 typedef __kernel_mode_t ntmode_t;
  68 #endif
  69 #ifndef NTFS_UID_T
  70 #define NTFS_UID_T
  71 typedef __kernel_uid_t ntfs_uid_t;
  72 #endif
  73 #ifndef NTFS_GID_T
  74 #define NTFS_GID_T
  75 typedef __kernel_gid_t ntfs_gid_t;
  76 #endif
  77 #ifndef NTFS_SIZE_T
  78 #define NTFS_SIZE_T
  79 typedef __kernel_size_t ntfs_size_t;
  80 #endif
  81 #ifndef NTFS_TIME_T
  82 #define NTFS_TIME_T
  83 typedef __kernel_time_t ntfs_time_t;
  84 #endif
  85
  86 /*
  87  * Local variables:
  88  * c-file-style: "linux"
  89  * End:
  90  */