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'. */
38typedef struct { int __val[2]; } __fsid_t;
39typedef __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
107struct statfs { __STATFS64_BODY };
108struct 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
162extern int statfs(const char*, struct statfs*) __nonnull((1, 2));
163extern int statfs64(const char*, struct statfs64*) __nonnull((1, 2));
164extern int fstatfs(int, struct statfs*) __nonnull((2));
165extern int fstatfs64(int, struct statfs64*) __nonnull((2));
166
167__END_DECLS
168
169#endif /* _SYS_VFS_H_ */
170