112 lines
3.4 KiB
Groff
112 lines
3.4 KiB
Groff
.\"
|
|
.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved.
|
|
.\"
|
|
.\" 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(s), this list of conditions and the following disclaimer as
|
|
.\" the first lines of this file unmodified other than the possible
|
|
.\" addition of one or more copyright notices.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice(s), 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 COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd February 21, 2013
|
|
.Dt VFS_SET 9
|
|
.Os
|
|
.Sh NAME
|
|
.Nm VFS_SET
|
|
.Nd set up loadable file system
|
|
.Vt vfsconf
|
|
.Sh SYNOPSIS
|
|
.In sys/param.h
|
|
.In sys/kernel.h
|
|
.In sys/module.h
|
|
.In sys/mount.h
|
|
.Ft void
|
|
.Fn VFS_SET "struct vfsops *vfsops" "fsname" "int flags"
|
|
.Sh DESCRIPTION
|
|
.Fn VFS_SET
|
|
creates a
|
|
.Vt vfsconf
|
|
structure for the loadable module with the given
|
|
.Fa vfsops , fsname
|
|
and
|
|
.Fa flags ,
|
|
and declares it by calling
|
|
.Xr DECLARE_MODULE 9
|
|
using
|
|
.Fn vfs_modevent
|
|
as the event handler.
|
|
.Pp
|
|
Possible values for the
|
|
.Fa flags
|
|
argument are:
|
|
.Bl -hang -width ".Dv VFCF_DELEGADMIN"
|
|
.It Dv VFCF_STATIC
|
|
File system should be statically available in the kernel.
|
|
.It Dv VFCF_NETWORK
|
|
Network exportable file system.
|
|
.It Dv VFCF_READONLY
|
|
Does not support write operations.
|
|
.It Dv VFCF_SYNTHETIC
|
|
Pseudo file system, data does not represent on-disk files.
|
|
.It Dv VFCF_LOOPBACK
|
|
Loopback file system layer.
|
|
.It Dv VFCF_UNICODE
|
|
File names are stored as Unicode.
|
|
.It Dv VFCF_JAIL
|
|
Can be mounted from within a jail if
|
|
.Va security.jail.mount_allowed
|
|
sysctl is set to
|
|
.Dv 1 .
|
|
.It Dv VFCF_DELEGADMIN
|
|
Supports delegated administration if
|
|
.Va vfs.usermount
|
|
sysctl is set to
|
|
.Dv 1 .
|
|
.It Dv VFCF_SBDRY
|
|
When in VFS method, the thread suspension is deferred to the user
|
|
boundary upon arrival of stop action.
|
|
.El
|
|
.Sh PSEUDOCODE
|
|
.Bd -literal
|
|
/*
|
|
* Fill in the fields for which we have special methods.
|
|
* The others are initially null. This tells vfs to change them to
|
|
* pointers to vfs_std* functions during file system registration.
|
|
*/
|
|
static struct vfsops myfs_vfsops = {
|
|
.vfs_mount = myfs_mount,
|
|
.vfs_root = myfs_root,
|
|
.vfs_statfs = myfs_statfs,
|
|
.vfs_unmount = myfs_unmount,
|
|
};
|
|
|
|
VFS_SET(myfs_vfsops, myfs, 0);
|
|
.Ed
|
|
.Sh SEE ALSO
|
|
.Xr jail 2 ,
|
|
.Xr jail 8 ,
|
|
.Xr DECLARE_MODULE 9 ,
|
|
.Xr vfs_modevent 9 ,
|
|
.Xr vfsconf 9
|
|
.Sh AUTHORS
|
|
This manual page was written by
|
|
.An Chad David Aq Mt davidc@acns.ab.ca .
|