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_ */