2 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _OPENSOLARIS_SYS_VFS_H_
30 #define _OPENSOLARIS_SYS_VFS_H_
32 #include <sys/param.h>
36 #include <sys/mount.h>
37 #include <sys/vnode.h>
39 #define rootdir rootvnode
41 typedef struct mount vfs_t;
43 #define vfs_flag mnt_flag
44 #define vfs_data mnt_data
45 #define vfs_count mnt_ref
46 #define vfs_fsid mnt_stat.f_fsid
47 #define vfs_bsize mnt_stat.f_bsize
48 #define vfs_resource mnt_stat.f_mntfromname
50 #define v_flag v_vflag
51 #define v_vfsp v_mount
53 #define VFS_RDONLY MNT_RDONLY
54 #define VFS_NOSETUID MNT_NOSUID
55 #define VFS_NOEXEC MNT_NOEXEC
57 #define VFS_HOLD(vfsp) do { \
62 #define VFS_RELE(vfsp) do { \
68 #define fs_vscan(vp, cr, async) (0)
73 * Structure defining a mount option for a filesystem.
74 * option names are found in mntent.h
76 typedef struct mntopt {
77 char *mo_name; /* option name */
78 char **mo_cancel; /* list of options cancelled by this one */
79 char *mo_arg; /* argument string for this option */
80 int mo_flags; /* flags for this mount option */
81 void *mo_data; /* filesystem specific data */
85 * Flags that apply to mount options
88 #define MO_SET 0x01 /* option is set */
89 #define MO_NODISPLAY 0x02 /* option not listed in mnttab */
90 #define MO_HASVALUE 0x04 /* option takes a value */
91 #define MO_IGNORE 0x08 /* option ignored by parser */
92 #define MO_DEFAULT MO_SET /* option is on by default */
93 #define MO_TAG 0x10 /* flags a tag set by user program */
94 #define MO_EMPTY 0x20 /* empty space in option table */
96 #define VFS_NOFORCEOPT 0x01 /* honor MO_IGNORE (don't set option) */
97 #define VFS_DISPLAY 0x02 /* Turn off MO_NODISPLAY bit for opt */
98 #define VFS_NODISPLAY 0x04 /* Turn on MO_NODISPLAY bit for opt */
99 #define VFS_CREATEOPT 0x08 /* Create the opt if it's not there */
102 * Structure holding mount option strings for the mounted file system.
104 typedef struct mntopts {
105 uint_t mo_count; /* number of entries in table */
106 mntopt_t *mo_list; /* list of mount options */
109 void vfs_setmntopt(vfs_t *vfsp, const char *name, const char *arg,
111 void vfs_clearmntopt(vfs_t *vfsp, const char *name);
112 int vfs_optionisset(const vfs_t *vfsp, const char *opt, char **argp);
113 int mount_snapshot(kthread_t *td, vnode_t **vpp, const char *fstype,
114 char *fspath, char *fspec, int fsflags);
116 typedef uint64_t vfs_feature_t;
118 #define VFSFT_XVATTR 0x100000001 /* Supports xvattr for attrs */
119 #define VFSFT_CASEINSENSITIVE 0x100000002 /* Supports case-insensitive */
120 #define VFSFT_NOCASESENSITIVE 0x100000004 /* NOT case-sensitive */
121 #define VFSFT_DIRENTFLAGS 0x100000008 /* Supports dirent flags */
122 #define VFSFT_ACLONCREATE 0x100000010 /* Supports ACL on create */
123 #define VFSFT_ACEMASKONACCESS 0x100000020 /* Can use ACEMASK for access */
124 #define VFSFT_SYSATTR_VIEWS 0x100000040 /* Supports sysattr view i/f */
125 #define VFSFT_ACCESS_FILTER 0x100000080 /* dirents filtered by access */
126 #define VFSFT_REPARSE 0x100000100 /* Supports reparse point */
127 #define VFSFT_ZEROCOPY_SUPPORTED 0x100000200
128 /* Support loaning /returning cache buffer */
130 #define vfs_set_feature(vfsp, feature) do { } while (0)
131 #define vfs_clear_feature(vfsp, feature) do { } while (0)
132 #define vfs_has_feature(vfsp, feature) (0)
136 #endif /* _OPENSOLARIS_SYS_VFS_H_ */