1/* $NetBSD: mount.h,v 1.10 2013/10/04 21:07:37 christos Exp $ */
2
3/*
4 * Copyright (c) 1989, 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * @(#)mount.h 8.21 (Berkeley) 5/20/95
32 */
33
34#ifndef _COMPAT_SYS_MOUNT_H_
35#define _COMPAT_SYS_MOUNT_H_
36
37#ifdef _KERNEL_OPT
38#include "opt_compat_43.h"
39#endif
40
41#define MFSNAMELEN 16
42
43struct statfs12 {
44 short f_type; /* type of file system */
45 u_short f_oflags; /* deprecated copy of mount flags */
46 long f_bsize; /* fundamental file system block size */
47 long f_iosize; /* optimal transfer block size */
48 long f_blocks; /* total data blocks in file system */
49 long f_bfree; /* free blocks in fs */
50 long f_bavail; /* free blocks avail to non-superuser */
51 long f_files; /* total file nodes in file system */
52 long f_ffree; /* free file nodes in fs */
53 fsid_t f_fsid; /* file system id */
54 uid_t f_owner; /* user that mounted the file system */
55 long f_flags; /* copy of mount flags */
56 long f_syncwrites; /* count of sync writes since mount */
57 long f_asyncwrites; /* count of async writes since mount */
58 long f_spare[1]; /* spare for later */
59 char f_fstypename[MFSNAMELEN]; /* fs type name */
60 char f_mntonname[MNAMELEN]; /* directory on which mounted */
61 char f_mntfromname[MNAMELEN]; /* mounted file system */
62};
63
64/*
65 * Operations supported on mounted file system.
66 */
67#ifdef _KERNEL
68
69/*
70 * Filesystem configuration information. Not used by NetBSD, but
71 * defined here to provide a compatible sysctl interface to Lite2.
72 */
73struct vfsconf {
74 struct vfsops *vfc_vfsops; /* filesystem operations vector */
75 char vfc_name[MFSNAMELEN]; /* filesystem type name */
76 int vfc_typenum; /* historic filesystem type number */
77 int vfc_refcount; /* number mounted of this type */
78 int vfc_flags; /* permanent flags */
79 int (*vfc_mountroot)(void); /* if != NULL, routine to mount root */
80 struct vfsconf *vfc_next; /* next in list */
81};
82
83/* Old, fixed size filehandle structures (used upto (including) 3.x) */
84struct compat_30_fid {
85 unsigned short fid_len;
86 unsigned short fid_reserved;
87 char fid_data[16];
88};
89struct compat_30_fhandle {
90 fsid_t fh_fsid;
91 struct compat_30_fid fh_fid;
92};
93
94#else
95
96__BEGIN_DECLS
97int __compat_fstatfs(int, struct statfs12 *) __dso_hidden;
98int __compat_getfsstat(struct statfs12 *, long, int) __dso_hidden;
99int __compat_statfs(const char *, struct statfs12 *) __dso_hidden;
100int __compat_getmntinfo(struct statfs12 **, int) __dso_hidden;
101#if defined(_NETBSD_SOURCE)
102struct compat_30_fhandle;
103int __compat_fhstatfs(const struct compat_30_fhandle *, struct statfs12 *)
104 __dso_hidden;
105struct stat13;
106int __compat_fhstat(const struct compat_30_fhandle *, struct stat13 *)
107 __dso_hidden;
108struct stat30;
109int __compat___fhstat30(const struct compat_30_fhandle *, struct stat30 *)
110 __dso_hidden;
111int __compat___fhstat40(const void *, size_t, struct stat30 *) __dso_hidden;
112struct stat;
113int __fhstat50(const void *, size_t, struct stat *);
114#endif /* _NETBSD_SOURCE */
115__END_DECLS
116
117#endif /* _KERNEL */
118
119#endif /* !_COMPAT_SYS_MOUNT_H_ */
120