1/* $NetBSD: statvfs.h,v 1.21 2020/07/03 19:37:27 jdolecek Exp $ */
2
3/*-
4 * Copyright (c) 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _SYS_STATVFS_H_
33#define _SYS_STATVFS_H_
34
35#include <sys/cdefs.h>
36#include <sys/featuretest.h>
37#include <sys/stdint.h>
38#include <machine/ansi.h>
39#include <sys/ansi.h>
40#include <sys/fstypes.h>
41
42#define _VFS_NAMELEN 32
43#define _VFS_MNAMELEN 1024
44
45#ifndef fsblkcnt_t
46typedef __fsblkcnt_t fsblkcnt_t; /* fs block count (statvfs) */
47#define fsblkcnt_t __fsblkcnt_t
48#endif
49
50#ifndef fsfilcnt_t
51typedef __fsfilcnt_t fsfilcnt_t; /* fs file count */
52#define fsfilcnt_t __fsfilcnt_t
53#endif
54
55#ifndef uid_t
56typedef __uid_t uid_t; /* user id */
57#define uid_t __uid_t
58#endif
59
60#ifdef _BSD_SIZE_T_
61typedef _BSD_SIZE_T_ size_t;
62#define _SIZE_T
63#undef _BSD_SIZE_T_
64#endif
65
66struct statvfs {
67 unsigned long f_flag; /* copy of mount exported flags */
68 unsigned long f_bsize; /* file system block size */
69 unsigned long f_frsize; /* fundamental file system block size */
70 unsigned long f_iosize; /* optimal file system block size */
71
72 /* The following are in units of f_frsize */
73 fsblkcnt_t f_blocks; /* number of blocks in file system, */
74 fsblkcnt_t f_bfree; /* free blocks avail in file system */
75 fsblkcnt_t f_bavail; /* free blocks avail to non-root */
76 fsblkcnt_t f_bresvd; /* blocks reserved for root */
77
78 fsfilcnt_t f_files; /* total file nodes in file system */
79 fsfilcnt_t f_ffree; /* free file nodes in file system */
80 fsfilcnt_t f_favail; /* free file nodes avail to non-root */
81 fsfilcnt_t f_fresvd; /* file nodes reserved for root */
82
83 uint64_t f_syncreads; /* count of sync reads since mount */
84 uint64_t f_syncwrites; /* count of sync writes since mount */
85
86 uint64_t f_asyncreads; /* count of async reads since mount */
87 uint64_t f_asyncwrites; /* count of async writes since mount */
88
89 fsid_t f_fsidx; /* NetBSD compatible fsid */
90 unsigned long f_fsid; /* Posix compatible fsid */
91 unsigned long f_namemax; /* maximum filename length */
92 uid_t f_owner; /* user that mounted the file system */
93
94 uint64_t f_spare[4]; /* spare space */
95
96 char f_fstypename[_VFS_NAMELEN]; /* fs type name */
97 char f_mntonname[_VFS_MNAMELEN]; /* directory on which mounted */
98 char f_mntfromname[_VFS_MNAMELEN]; /* mounted file system */
99 char f_mntfromlabel[_VFS_MNAMELEN]; /* disk label name if avail */
100
101};
102
103#if defined(_NETBSD_SOURCE) && !defined(_POSIX_SOURCE) && \
104 !defined(_XOPEN_SOURCE)
105#define VFS_NAMELEN _VFS_NAMELEN
106#define VFS_MNAMELEN _VFS_MNAMELEN
107#endif
108
109#define ST_RDONLY MNT_RDONLY
110#define ST_SYNCHRONOUS MNT_SYNCHRONOUS
111#define ST_NOEXEC MNT_NOEXEC
112#define ST_NOSUID MNT_NOSUID
113#define ST_NODEV MNT_NODEV
114#define ST_UNION MNT_UNION
115#define ST_ASYNC MNT_ASYNC
116#define ST_ACLS MNT_ACLS
117#define ST_NOCOREDUMP MNT_NOCOREDUMP
118#define ST_RELATIME MNT_RELATIME
119#define ST_IGNORE MNT_IGNORE
120#define ST_NOATIME MNT_NOATIME
121#define ST_SYMPERM MNT_SYMPERM
122#define ST_NODEVMTIME MNT_NODEVMTIME
123#define ST_SOFTDEP MNT_SOFTDEP
124#define ST_LOG MNT_LOG
125#define ST_EXTATTR MNT_EXTATTR
126
127#define ST_EXRDONLY MNT_EXRDONLY
128#define ST_EXPORTED MNT_EXPORTED
129#define ST_DEFEXPORTED MNT_DEFEXPORTED
130#define ST_EXPORTANON MNT_EXPORTANON
131#define ST_EXKERB MNT_EXKERB
132#define ST_EXNORESPORT MNT_EXNORESPORT
133#define ST_EXPUBLIC MNT_EXPUBLIC
134
135#define ST_LOCAL MNT_LOCAL
136#define ST_QUOTA MNT_QUOTA
137#define ST_ROOTFS MNT_ROOTFS
138
139
140#define ST_WAIT MNT_WAIT
141#define ST_NOWAIT MNT_NOWAIT
142
143#if defined(_KERNEL) || defined(_STANDALONE)
144struct mount;
145struct lwp;
146
147int set_statvfs_info(const char *, int, const char *, int,
148 const char *, struct mount *, struct lwp *);
149void copy_statvfs_info(struct statvfs *, const struct mount *);
150int dostatvfs(struct mount *, struct statvfs *, struct lwp *, int, int);
151
152#include <sys/kmem.h>
153#define STATVFSBUF_GET() \
154 (struct statvfs *)kmem_zalloc(sizeof(struct statvfs), KM_SLEEP)
155#define STATVFSBUF_PUT(sb) kmem_free(sb, sizeof(struct statvfs))
156
157#else
158__BEGIN_DECLS
159#ifndef __LIBC12_SOURCE__
160int getmntinfo(struct statvfs **, int)
161 __RENAME(__getmntinfo90);
162
163int statvfs(const char *__restrict, struct statvfs *__restrict)
164 __RENAME(__statvfs90);
165int fstatvfs(int, struct statvfs *)
166 __RENAME(__fstatvfs90);
167int getvfsstat(struct statvfs *, size_t, int)
168 __RENAME(__getvfsstat90);
169
170#if defined(_NETBSD_SOURCE)
171int fhstatvfs(const void *, size_t, struct statvfs *)
172 __RENAME(__fhstatvfs90);
173int statvfs1(const char *__restrict, struct statvfs *__restrict, int)
174 __RENAME(__statvfs190);
175int fstatvfs1(int, struct statvfs *, int)
176 __RENAME(__fstatvfs190);
177int fhstatvfs1(const void *, size_t, struct statvfs *, int)
178 __RENAME(__fhstatvfs190);
179#endif /* _NETBSD_SOURCE */
180#endif /* __LIBC12_SOURCE__ */
181__END_DECLS
182#endif /* _KERNEL || _STANDALONE */
183
184#endif /* !_SYS_STATVFS_H_ */