1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 #ifndef _SYS_VFS_H_ 29 #define _SYS_VFS_H_ 30 31 #include <stdint.h> 32 #include <sys/cdefs.h> 33 #include <sys/types.h> 34 35 __BEGIN_DECLS 36 37 /* The kernel's __kernel_fsid_t has a 'val' member but glibc uses '__val'. */ 38 typedef struct { int __val[2]; } __fsid_t; 39 typedef __fsid_t fsid_t; 40 41 #if defined(__aarch64__) || defined(__x86_64__) 42 #define __STATFS64_BODY \ 43 uint64_t f_type; \ 44 uint64_t f_bsize; \ 45 uint64_t f_blocks; \ 46 uint64_t f_bfree; \ 47 uint64_t f_bavail; \ 48 uint64_t f_files; \ 49 uint64_t f_ffree; \ 50 fsid_t f_fsid; \ 51 uint64_t f_namelen; \ 52 uint64_t f_frsize; \ 53 uint64_t f_flags; \ 54 uint64_t f_spare[4]; \ 55 56 #elif defined(__mips__) && defined(__LP64__) 57 /* 64-bit MIPS. */ 58 #define __STATFS64_BODY \ 59 uint64_t f_type; \ 60 uint64_t f_bsize; \ 61 uint64_t f_frsize; /* Fragment size - unsupported. */ \ 62 uint64_t f_blocks; \ 63 uint64_t f_bfree; \ 64 uint64_t f_files; \ 65 uint64_t f_ffree; \ 66 uint64_t f_bavail; \ 67 fsid_t f_fsid; \ 68 uint64_t f_namelen; \ 69 uint64_t f_flags; \ 70 uint64_t f_spare[5]; \ 71 72 #elif defined(__mips__) 73 /* 32-bit MIPS (corresponds to the kernel's statfs64 type). */ 74 #define __STATFS64_BODY \ 75 uint32_t f_type; \ 76 uint32_t f_bsize; \ 77 uint32_t f_frsize; \ 78 uint32_t __pad; \ 79 uint64_t f_blocks; \ 80 uint64_t f_bfree; \ 81 uint64_t f_files; \ 82 uint64_t f_ffree; \ 83 uint64_t f_bavail; \ 84 fsid_t f_fsid; \ 85 uint32_t f_namelen; \ 86 uint32_t f_flags; \ 87 uint32_t f_spare[5]; \ 88 89 #else 90 /* 32-bit ARM or x86 (corresponds to the kernel's statfs64 type). */ 91 #define __STATFS64_BODY \ 92 uint32_t f_type; \ 93 uint32_t f_bsize; \ 94 uint64_t f_blocks; \ 95 uint64_t f_bfree; \ 96 uint64_t f_bavail; \ 97 uint64_t f_files; \ 98 uint64_t f_ffree; \ 99 fsid_t f_fsid; \ 100 uint32_t f_namelen; \ 101 uint32_t f_frsize; \ 102 uint32_t f_flags; \ 103 uint32_t f_spare[4]; \ 104 105 #endif 106 107 struct statfs { __STATFS64_BODY }; 108 struct statfs64 { __STATFS64_BODY }; 109 110 #undef __STATFS64_BODY 111 112 /* Declare that we have the f_namelen, f_frsize, and f_flags fields. */ 113 #define _STATFS_F_NAMELEN 114 #define _STATFS_F_FRSIZE 115 #define _STATFS_F_FLAGS 116 117 #define ADFS_SUPER_MAGIC 0xadf5 118 #define AFFS_SUPER_MAGIC 0xADFF 119 #define BEFS_SUPER_MAGIC 0x42465331 120 #define BFS_MAGIC 0x1BADFACE 121 #define CIFS_MAGIC_NUMBER 0xFF534D42 122 #define CODA_SUPER_MAGIC 0x73757245 123 #define COH_SUPER_MAGIC 0x012FF7B7 124 #define CRAMFS_MAGIC 0x28cd3d45 125 #define DEVFS_SUPER_MAGIC 0x1373 126 #define EFS_SUPER_MAGIC 0x00414A53 127 #define EXT_SUPER_MAGIC 0x137D 128 #define EXT2_OLD_SUPER_MAGIC 0xEF51 129 #define EXT2_SUPER_MAGIC 0xEF53 130 #define EXT3_SUPER_MAGIC 0xEF53 131 #define HFS_SUPER_MAGIC 0x4244 132 #define HPFS_SUPER_MAGIC 0xF995E849 133 #define HUGETLBFS_MAGIC 0x958458f6 134 #define ISOFS_SUPER_MAGIC 0x9660 135 #define JFFS2_SUPER_MAGIC 0x72b6 136 #define JFS_SUPER_MAGIC 0x3153464a 137 #define MINIX_SUPER_MAGIC 0x137F /* orig. minix */ 138 #define MINIX_SUPER_MAGIC2 0x138F /* 30 char minix */ 139 #define MINIX2_SUPER_MAGIC 0x2468 /* minix V2 */ 140 #define MINIX2_SUPER_MAGIC2 0x2478 /* minix V2, 30 char names */ 141 #define MSDOS_SUPER_MAGIC 0x4d44 142 #define NCP_SUPER_MAGIC 0x564c 143 #define NFS_SUPER_MAGIC 0x6969 144 #define NTFS_SB_MAGIC 0x5346544e 145 #define OPENPROM_SUPER_MAGIC 0x9fa1 146 #define PROC_SUPER_MAGIC 0x9fa0 147 #define QNX4_SUPER_MAGIC 0x002f 148 #define REISERFS_SUPER_MAGIC 0x52654973 149 #define ROMFS_MAGIC 0x7275 150 #define SMB_SUPER_MAGIC 0x517B 151 #define SYSV2_SUPER_MAGIC 0x012FF7B6 152 #define SYSV4_SUPER_MAGIC 0x012FF7B5 153 #define TMPFS_MAGIC 0x01021994 154 #define UDF_SUPER_MAGIC 0x15013346 155 #define UFS_MAGIC 0x00011954 156 #define USBDEVICE_SUPER_MAGIC 0x9fa2 157 #define VXFS_SUPER_MAGIC 0xa501FCF5 158 #define XENIX_SUPER_MAGIC 0x012FF7B4 159 #define XFS_SUPER_MAGIC 0x58465342 160 #define _XIAFS_SUPER_MAGIC 0x012FD16D 161 162 extern int statfs(const char*, struct statfs*) __nonnull((1, 2)); 163 extern int statfs64(const char*, struct statfs64*) __nonnull((1, 2)); 164 extern int fstatfs(int, struct statfs*) __nonnull((2)); 165 extern int fstatfs64(int, struct statfs64*) __nonnull((2)); 166 167 __END_DECLS 168 169 #endif /* _SYS_VFS_H_ */ 170