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(__minix) 142 #define ST_NOTRUNC __MNT_UNUSED1 143 #endif /* defined(__minix) */ 144 145 #if defined(_KERNEL) || defined(_STANDALONE) 146 struct mount; 147 struct lwp; 148 149 int set_statvfs_info(const char *, int, const char *, int, 150 const char *, struct mount *, struct lwp *); 151 void copy_statvfs_info(struct statvfs *, const struct mount *); 152 int dostatvfs(struct mount *, struct statvfs *, struct lwp *, int, int); 153 #else 154 __BEGIN_DECLS 155 int statvfs(const char *__restrict, struct statvfs *__restrict); 156 int fstatvfs(int, struct statvfs *); 157 int getvfsstat(struct statvfs *, size_t, int); 158 #ifndef __LIBC12_SOURCE__ 159 int getmntinfo(struct statvfs **, int) __RENAME(__getmntinfo13); 160 #endif /* __LIBC12_SOURCE__ */ 161 #if defined(_NETBSD_SOURCE) 162 #ifndef __LIBC12_SOURCE__ 163 int fhstatvfs(const void *, size_t, struct statvfs *) 164 __RENAME(__fhstatvfs40); 165 #endif 166 167 int statvfs1(const char *__restrict, struct statvfs *__restrict, int); 168 int fstatvfs1(int, struct statvfs *, int); 169 #ifndef __LIBC12_SOURCE__ 170 int fhstatvfs1(const void *, size_t, struct statvfs *, int) 171 __RENAME(__fhstatvfs140); 172 #endif 173 #endif /* _NETBSD_SOURCE */ 174 __END_DECLS 175 #endif /* _KERNEL || _STANDALONE */ 176 177 #if defined(_KERNEL) 178 #include <sys/kmem.h> 179 #define STATVFSBUF_GET() kmem_alloc(sizeof(struct statvfs), KM_SLEEP) 180 #define STATVFSBUF_PUT(sb) kmem_free(sb, sizeof(struct statvfs)) 181 #endif /* defined(_KERNEL) */ 182 183 #endif /* !_SYS_STATVFS_H_ */ 184