/*      $NetBSD: statvfs.h,v 1.21 2020/07/03 19:37:27 jdolecek Exp $     */

/*-
 * Copyright (c) 2004 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Christos Zoulas.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _SYS_STATVFS_H_
#define _SYS_STATVFS_H_

#include <sys/cdefs.h>
#include <sys/featuretest.h>
#include <sys/stdint.h>
#include <machine/ansi.h>
#include <sys/ansi.h>
#include <sys/fstypes.h>

#define _VFS_NAMELEN    32
#define _VFS_MNAMELEN   1024

#ifndef fsblkcnt_t
typedef __fsblkcnt_t    fsblkcnt_t;     /* fs block count (statvfs) */
#define fsblkcnt_t      __fsblkcnt_t
#endif

#ifndef fsfilcnt_t
typedef __fsfilcnt_t    fsfilcnt_t;     /* fs file count */
#define fsfilcnt_t      __fsfilcnt_t
#endif

#ifndef uid_t
typedef __uid_t         uid_t;          /* user id */
#define uid_t           __uid_t
#endif

#ifdef  _BSD_SIZE_T_
typedef _BSD_SIZE_T_            size_t;
#define _SIZE_T
#undef  _BSD_SIZE_T_
#endif

struct statvfs {
        unsigned long   f_flag;         /* copy of mount exported flags */
        unsigned long   f_bsize;        /* file system block size */
        unsigned long   f_frsize;       /* fundamental file system block size */
        unsigned long   f_iosize;       /* optimal file system block size */

        /* The following are in units of f_frsize */
        fsblkcnt_t      f_blocks;       /* number of blocks in file system, */
        fsblkcnt_t      f_bfree;        /* free blocks avail in file system */
        fsblkcnt_t      f_bavail;       /* free blocks avail to non-root */
        fsblkcnt_t      f_bresvd;       /* blocks reserved for root */

        fsfilcnt_t      f_files;        /* total file nodes in file system */
        fsfilcnt_t      f_ffree;        /* free file nodes in file system */
        fsfilcnt_t      f_favail;       /* free file nodes avail to non-root */
        fsfilcnt_t      f_fresvd;       /* file nodes reserved for root */

        uint64_t        f_syncreads;    /* count of sync reads since mount */
        uint64_t        f_syncwrites;   /* count of sync writes since mount */

        uint64_t        f_asyncreads;   /* count of async reads since mount */
        uint64_t        f_asyncwrites;  /* count of async writes since mount */

        fsid_t          f_fsidx;        /* NetBSD compatible fsid */
        unsigned long   f_fsid;         /* Posix compatible fsid */
        unsigned long   f_namemax;      /* maximum filename length */
        uid_t           f_owner;        /* user that mounted the file system */

        uint64_t        f_spare[4];     /* spare space */

        char    f_fstypename[_VFS_NAMELEN];     /* fs type name */
        char    f_mntonname[_VFS_MNAMELEN];     /* directory on which mounted */
        char    f_mntfromname[_VFS_MNAMELEN];   /* mounted file system */
        char    f_mntfromlabel[_VFS_MNAMELEN];  /* disk label name if avail */

};

#if defined(_NETBSD_SOURCE) && !defined(_POSIX_SOURCE) && \
    !defined(_XOPEN_SOURCE)
#define VFS_NAMELEN     _VFS_NAMELEN
#define VFS_MNAMELEN    _VFS_MNAMELEN
#endif

#define ST_RDONLY       MNT_RDONLY
#define ST_SYNCHRONOUS  MNT_SYNCHRONOUS
#define ST_NOEXEC       MNT_NOEXEC
#define ST_NOSUID       MNT_NOSUID
#define ST_NODEV        MNT_NODEV
#define ST_UNION        MNT_UNION
#define ST_ASYNC        MNT_ASYNC
#define ST_ACLS         MNT_ACLS
#define ST_NOCOREDUMP   MNT_NOCOREDUMP
#define ST_RELATIME     MNT_RELATIME
#define ST_IGNORE       MNT_IGNORE
#define ST_NOATIME      MNT_NOATIME
#define ST_SYMPERM      MNT_SYMPERM
#define ST_NODEVMTIME   MNT_NODEVMTIME
#define ST_SOFTDEP      MNT_SOFTDEP
#define ST_LOG          MNT_LOG
#define ST_EXTATTR      MNT_EXTATTR

#define ST_EXRDONLY     MNT_EXRDONLY
#define ST_EXPORTED     MNT_EXPORTED
#define ST_DEFEXPORTED  MNT_DEFEXPORTED
#define ST_EXPORTANON   MNT_EXPORTANON
#define ST_EXKERB       MNT_EXKERB
#define ST_EXNORESPORT  MNT_EXNORESPORT
#define ST_EXPUBLIC     MNT_EXPUBLIC

#define ST_LOCAL        MNT_LOCAL
#define ST_QUOTA        MNT_QUOTA
#define ST_ROOTFS       MNT_ROOTFS


#define ST_WAIT         MNT_WAIT
#define ST_NOWAIT       MNT_NOWAIT

#if defined(_KERNEL) || defined(_STANDALONE)
struct mount;
struct lwp;

int     set_statvfs_info(const char *, int, const char *, int,
    const char *, struct mount *, struct lwp *);
void    copy_statvfs_info(struct statvfs *, const struct mount *);
int     dostatvfs(struct mount *, struct statvfs *, struct lwp *, int, int);

#include <sys/kmem.h>
#define STATVFSBUF_GET()        \
        (struct statvfs *)kmem_zalloc(sizeof(struct statvfs), KM_SLEEP)
#define STATVFSBUF_PUT(sb)      kmem_free(sb, sizeof(struct statvfs))

#else
__BEGIN_DECLS
#ifndef __LIBC12_SOURCE__
int     getmntinfo(struct statvfs **, int)
    __RENAME(__getmntinfo90);

int     statvfs(const char *__restrict, struct statvfs *__restrict)
    __RENAME(__statvfs90);
int     fstatvfs(int, struct statvfs *)
    __RENAME(__fstatvfs90);
int     getvfsstat(struct statvfs *, size_t, int)
    __RENAME(__getvfsstat90);

#if defined(_NETBSD_SOURCE)
int     fhstatvfs(const void *, size_t, struct statvfs *) 
    __RENAME(__fhstatvfs90);
int     statvfs1(const char *__restrict, struct statvfs *__restrict, int)
    __RENAME(__statvfs190);
int     fstatvfs1(int, struct statvfs *, int)
    __RENAME(__fstatvfs190);
int     fhstatvfs1(const void *, size_t, struct statvfs *, int)
    __RENAME(__fhstatvfs190);
#endif /* _NETBSD_SOURCE */
#endif /* __LIBC12_SOURCE__ */
__END_DECLS
#endif /* _KERNEL || _STANDALONE */

#endif /* !_SYS_STATVFS_H_ */