sysdeps/unix/sysv/linux/linux_fsinfo.h

   1 /* Constants from kernel header for various FSes.
   2    Copyright (C) 1998-2013 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _LINUX_FSINFO_H
  20 #define _LINUX_FSINFO_H 1
  21
  22 /* These definitions come from the kernel headers.  But we cannot
  23    include the headers here because of type clashes.  If new
  24    filesystem types will become available we have to add the
  25    appropriate definitions here.  */
  26
  27 /* Constant that identifies the `adfs' filesystem.  */
  28 #define ADFS_SUPER_MAGIC        0xadf5
  29
  30 /* Constant that identifies the `affs' filesystem.  */
  31 #define AFFS_SUPER_MAGIC        0xadff
  32
  33 /* Constant that identifies the `autofs' filesystem.  */
  34 #define AUTOFS_SUPER_MAGIC      0x187
  35
  36 /* Constant that identifies the `bfs' filesystem.  */
  37 #define BFS_MAGIC               0x1badface
  38
  39 /* Constant that identifies the `btrfs' filesystem.  */
  40 #define BTRFS_SUPER_MAGIC       0x9123683e
  41
  42 /* Constant that identifies the `cgroup' filesystem.  */
  43 #define CGROUP_SUPER_MAGIC      0x27e0eb
  44
  45 /* Constant that identifies the `coda' filesystem.  */
  46 #define CODA_SUPER_MAGIC        0x73757245
  47
  48 /* Constant that identifies the `coherent' filesystem.  */
  49 #define COH_SUPER_MAGIC         0x012ff7b7
  50
  51 /* Constant that identifies the `ramfs' filesystem.  */
  52 #define CRAMFS_MAGIC            0x28cd3d45
  53
  54 /* Constant that identifies the `devfs' filesystem.  */
  55 #define DEVFS_SUPER_MAGIC       0x1373
  56
  57 /* Constant that identifies the `devpts' filesystem.  */
  58 #define DEVPTS_SUPER_MAGIC      0x1cd1
  59
  60 /* Constants that identifies the `efs' filesystem.  */
  61 #define EFS_SUPER_MAGIC         0x414a53
  62 #define EFS_MAGIC               0x072959
  63
  64 /* Constant that identifies the `ext2' and `ext3' filesystems.  */
  65 #define EXT2_SUPER_MAGIC        0xef53
  66
  67 /* Constant that identifies the `hpfs' filesystem.  */
  68 #define HPFS_SUPER_MAGIC        0xf995e849
  69
  70 /* Constant that identifies the `iso9660' filesystem.  */
  71 #define ISOFS_SUPER_MAGIC       0x9660
  72
  73 /* Constant that identifies the `jffs' filesystem.  */
  74 #define JFFS_SUPER_MAGIC        0x07c0
  75
  76 /* Constant that identifies the `jffs2' filesystem.  */
  77 #define JFFS2_SUPER_MAGIC       0x72b6
  78
  79 /* Constant that identifies the `jfs' filesystem.  */
  80 #define JFS_SUPER_MAGIC         0x3153464a
  81
  82 /* Constant that identifies the `logfs' filesystem.  */
  83 #define LOGFS_MAGIC_U32         0xc97e8168u
  84
  85 /* Constant that identifies the `lustre' filesystem.  */
  86 #define LUSTRE_SUPER_MAGIC      0x0BD00BD0
  87
  88 /* Constants that identify the `minix2' filesystem.  */
  89 #define MINIX2_SUPER_MAGIC      0x2468
  90 #define MINIX2_SUPER_MAGIC2     0x2478
  91
  92 /* Constants that identify the `minix' filesystem.  */
  93 #define MINIX_SUPER_MAGIC       0x137f
  94 #define MINIX_SUPER_MAGIC2      0x138F
  95
  96 /* Constant that identifies the `msdos' filesystem.  */
  97 #define MSDOS_SUPER_MAGIC       0x4d44
  98
  99 /* Constant that identifies the `ncp' filesystem.  */
 100 #define NCP_SUPER_MAGIC         0x564c
 101
 102 /* Constant that identifies the `nfs' filesystem.  */
 103 #define NFS_SUPER_MAGIC         0x6969
 104
 105 /* Constant that identifies the `ntfs' filesystem.  */
 106 #define NTFS_SUPER_MAGIC        0x5346544e
 107
 108 /* Constant that identifies the `proc' filesystem.  */
 109 #define PROC_SUPER_MAGIC        0x9fa0
 110
 111 /* Constant that identifies the `usbdevfs' filesystem.  */
 112 #define USBDEVFS_SUPER_MAGIC    0x9fa2
 113
 114 /* Constant that identifies the `qnx4' filesystem.  */
 115 #define QNX4_SUPER_MAGIC        0x002f
 116
 117 /* Constant that identifies the `reiser' filesystem.  */
 118 #define REISERFS_SUPER_MAGIC    0x52654973
 119
 120 /* Constant that identifies the `romfs' filesystem.  */
 121 #define ROMFS_SUPER_MAGIC       0x7275
 122
 123 /* Constant that identifies the `shm' filesystem.  */
 124 #define SHMFS_SUPER_MAGIC       0x01021994
 125
 126 /* Constant that identifies the `smb' filesystem.  */
 127 #define SMB_SUPER_MAGIC         0x517b
 128
 129 /* Constant that identifies the `sysfs' filesystem.  */
 130 #define SYSFS_MAGIC             0x62656572
 131
 132 /* Constants that identify the `sysV' filesystem.  */
 133 #define SYSV2_SUPER_MAGIC       0x012ff7b6
 134 #define SYSV4_SUPER_MAGIC       0x012ff7b5
 135
 136 /* Constant that identifies the `udf' filesystem.  */
 137 #define UDF_SUPER_MAGIC         0x15013346
 138
 139 /* Constant that identify the `ufs' filesystem.  */
 140 #define UFS_MAGIC               0x00011954
 141 #define UFS_CIGAM               0x54190100 /* byteswapped MAGIC */
 142
 143 /* Constant that identifies the `vxfs' filesystem.  */
 144 #define VXFS_SUPER_MAGIC        0xa501fcf5
 145
 146 /* Constant that identifies the `xenix' filesystem.  */
 147 #define XENIX_SUPER_MAGIC       0x012ff7b4
 148
 149 /* Constant that identifies the `xfs' filesystem.  */
 150 #define XFS_SUPER_MAGIC         0x58465342
 151
 152 /* Maximum link counts.  */
 153 #define COH_LINK_MAX            10000
 154 #define EXT2_LINK_MAX           32000
 155 #define EXT4_LINK_MAX           65000
 156 #define LUSTRE_LINK_MAX         EXT4_LINK_MAX
 157 #define MINIX2_LINK_MAX         65530
 158 #define MINIX_LINK_MAX          250
 159 #define REISERFS_LINK_MAX       64535
 160 #define SYSV_LINK_MAX           126     /* 127? 251? */
 161 #define UFS_LINK_MAX            EXT2_LINK_MAX
 162 #define XENIX_LINK_MAX          126     /* ?? */
 163 #define XFS_LINK_MAX            2147483647
 164
 165 /* The Linux kernel header mentioned this as a kind of generic value.  */
 166 #define LINUX_LINK_MAX  127
 167
 168
 169 #endif  /* linux_fsinfo.h */