1.\" 2.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice(s), this list of conditions and the following disclaimer as 9.\" the first lines of this file unmodified other than the possible 10.\" addition of one or more copyright notices. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice(s), this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 16.\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18.\" DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY 19.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 22.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 25.\" DAMAGE. 26.\" 27.\" $FreeBSD$ 28.\" 29.Dd August 16, 2018 30.Dt VFS_SET 9 31.Os 32.Sh NAME 33.Nm VFS_SET 34.Nd set up loadable file system 35.Vt vfsconf 36.Sh SYNOPSIS 37.In sys/param.h 38.In sys/kernel.h 39.In sys/module.h 40.In sys/mount.h 41.Ft void 42.Fn VFS_SET "struct vfsops *vfsops" "fsname" "int flags" 43.Sh DESCRIPTION 44.Fn VFS_SET 45creates a 46.Vt vfsconf 47structure for the loadable module with the given 48.Fa vfsops , fsname 49and 50.Fa flags , 51and declares it by calling 52.Xr DECLARE_MODULE 9 53using 54.Fn vfs_modevent 55as the event handler. 56.Pp 57Possible values for the 58.Fa flags 59argument are: 60.Bl -hang -width ".Dv VFCF_DELEGADMIN" 61.It Dv VFCF_STATIC 62File system should be statically available in the kernel. 63.It Dv VFCF_NETWORK 64Network exportable file system. 65.It Dv VFCF_READONLY 66Does not support write operations. 67.It Dv VFCF_SYNTHETIC 68Pseudo file system, data does not represent on-disk files. 69.It Dv VFCF_LOOPBACK 70Loopback file system layer. 71.It Dv VFCF_UNICODE 72File names are stored as Unicode. 73.It Dv VFCF_JAIL 74Can be mounted from within a jail if 75.Va allow.mount 76and 77.Va allow.mount.<fsname> 78jail parameters are set. 79.It Dv VFCF_DELEGADMIN 80Supports delegated administration if 81.Va vfs.usermount 82sysctl is set to 83.Dv 1 . 84.It Dv VFCF_SBDRY 85When in VFS method, the thread suspension is deferred to the user 86boundary upon arrival of stop action. 87.El 88.Sh PSEUDOCODE 89.Bd -literal 90/* 91 * Fill in the fields for which we have special methods. 92 * The others are initially null. This tells vfs to change them to 93 * pointers to vfs_std* functions during file system registration. 94 */ 95static struct vfsops myfs_vfsops = { 96 .vfs_mount = myfs_mount, 97 .vfs_root = myfs_root, 98 .vfs_statfs = myfs_statfs, 99 .vfs_unmount = myfs_unmount, 100}; 101 102VFS_SET(myfs_vfsops, myfs, 0); 103.Ed 104.Sh SEE ALSO 105.Xr jail 2 , 106.Xr jail 8 , 107.Xr DECLARE_MODULE 9 , 108.Xr vfs_modevent 9 , 109.Xr vfsconf 9 110.Sh AUTHORS 111This manual page was written by 112.An Chad David Aq Mt davidc@acns.ab.ca . 113