| 1 | /* $NetBSD: statvfs.h,v 1.18 2013/04/05 17:34:27 christos 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 |
| 46 | typedef __fsblkcnt_t fsblkcnt_t; /* fs block count (statvfs) */ |
| 47 | #define fsblkcnt_t __fsblkcnt_t |
| 48 | #endif |
| 49 | |
| 50 | #ifndef fsfilcnt_t |
| 51 | typedef __fsfilcnt_t fsfilcnt_t; /* fs file count */ |
| 52 | #define fsfilcnt_t __fsfilcnt_t |
| 53 | #endif |
| 54 | |
| 55 | #ifndef uid_t |
| 56 | typedef __uid_t uid_t; /* user id */ |
| 57 | #define uid_t __uid_t |
| 58 | #endif |
| 59 | |
| 60 | #ifdef _BSD_SIZE_T_ |
| 61 | typedef _BSD_SIZE_T_ size_t; |
| 62 | #define _SIZE_T |
| 63 | #undef _BSD_SIZE_T_ |
| 64 | #endif |
| 65 | |
| 66 | struct 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 | uint32_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 | |
| 100 | }; |
| 101 | |
| 102 | #if defined(_NETBSD_SOURCE) && !defined(_POSIX_SOURCE) && \ |
| 103 | !defined(_XOPEN_SOURCE) |
| 104 | #define VFS_NAMELEN _VFS_NAMELEN |
| 105 | #define VFS_MNAMELEN _VFS_MNAMELEN |
| 106 | #endif |
| 107 | |
| 108 | #define ST_RDONLY MNT_RDONLY |
| 109 | #define ST_SYNCHRONOUS MNT_SYNCHRONOUS |
| 110 | #define ST_NOEXEC MNT_NOEXEC |
| 111 | #define ST_NOSUID MNT_NOSUID |
| 112 | #define ST_NODEV MNT_NODEV |
| 113 | #define ST_UNION MNT_UNION |
| 114 | #define ST_ASYNC MNT_ASYNC |
| 115 | #define ST_NOCOREDUMP MNT_NOCOREDUMP |
| 116 | #define ST_RELATIME MNT_RELATIME |
| 117 | #define ST_IGNORE MNT_IGNORE |
| 118 | #define ST_NOATIME MNT_NOATIME |
| 119 | #define ST_SYMPERM MNT_SYMPERM |
| 120 | #define ST_NODEVMTIME MNT_NODEVMTIME |
| 121 | #define ST_SOFTDEP MNT_SOFTDEP |
| 122 | #define ST_LOG MNT_LOG |
| 123 | #define ST_EXTATTR MNT_EXTATTR |
| 124 | |
| 125 | #define ST_EXRDONLY MNT_EXRDONLY |
| 126 | #define ST_EXPORTED MNT_EXPORTED |
| 127 | #define ST_DEFEXPORTED MNT_DEFEXPORTED |
| 128 | #define ST_EXPORTANON MNT_EXPORTANON |
| 129 | #define ST_EXKERB MNT_EXKERB |
| 130 | #define ST_EXNORESPORT MNT_EXNORESPORT |
| 131 | #define ST_EXPUBLIC MNT_EXPUBLIC |
| 132 | |
| 133 | #define ST_LOCAL MNT_LOCAL |
| 134 | #define ST_QUOTA MNT_QUOTA |
| 135 | #define ST_ROOTFS MNT_ROOTFS |
| 136 | |
| 137 | |
| 138 | #define ST_WAIT MNT_WAIT |
| 139 | #define ST_NOWAIT MNT_NOWAIT |
| 140 | |
| 141 | #if defined(_KERNEL) || defined(_STANDALONE) |
| 142 | struct mount; |
| 143 | struct lwp; |
| 144 | |
| 145 | int set_statvfs_info(const char *, int, const char *, int, |
| 146 | const char *, struct mount *, struct lwp *); |
| 147 | void copy_statvfs_info(struct statvfs *, const struct mount *); |
| 148 | int dostatvfs(struct mount *, struct statvfs *, struct lwp *, int, int); |
| 149 | #else |
| 150 | __BEGIN_DECLS |
| 151 | int statvfs(const char *__restrict, struct statvfs *__restrict); |
| 152 | int fstatvfs(int, struct statvfs *); |
| 153 | int getvfsstat(struct statvfs *, size_t, int); |
| 154 | #ifndef __LIBC12_SOURCE__ |
| 155 | int getmntinfo(struct statvfs **, int) __RENAME(__getmntinfo13); |
| 156 | #endif /* __LIBC12_SOURCE__ */ |
| 157 | #if defined(_NETBSD_SOURCE) |
| 158 | #ifndef __LIBC12_SOURCE__ |
| 159 | int fhstatvfs(const void *, size_t, struct statvfs *) |
| 160 | __RENAME(__fhstatvfs40); |
| 161 | #endif |
| 162 | |
| 163 | int statvfs1(const char *__restrict, struct statvfs *__restrict, int); |
| 164 | int fstatvfs1(int, struct statvfs *, int); |
| 165 | #ifndef __LIBC12_SOURCE__ |
| 166 | int fhstatvfs1(const void *, size_t, struct statvfs *, int) |
| 167 | __RENAME(__fhstatvfs140); |
| 168 | #endif |
| 169 | #endif /* _NETBSD_SOURCE */ |
| 170 | __END_DECLS |
| 171 | #endif /* _KERNEL || _STANDALONE */ |
| 172 | |
| 173 | #if defined(_KERNEL) |
| 174 | #include <sys/kmem.h> |
| 175 | #define STATVFSBUF_GET() kmem_alloc(sizeof(struct statvfs), KM_SLEEP) |
| 176 | #define STATVFSBUF_PUT(sb) kmem_free(sb, sizeof(struct statvfs)) |
| 177 | #endif /* defined(_KERNEL) */ |
| 178 | |
| 179 | #endif /* !_SYS_STATVFS_H_ */ |
| 180 | |