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Four new dataset properties have been added to support SELinux. They are 'context', 'fscontext', 'defcontext' and 'rootcontext' which map directly to the context options described in mount(8). When one of these properties is set to something other than 'none'. That string will be passed verbatim as a mount option for the given context when the filesystem is mounted. For example, if you wanted the rootcontext for a filesystem to be set to 'system_u:object_r:fs_t' you would set the property as follows: $ zfs set rootcontext="system_u:object_r:fs_t" storage-pool/media This will ensure the filesystem is automatically mounted with that rootcontext. It is equivalent to manually specifying the rootcontext with the -o option like this: $ zfs mount -o rootcontext=system_u:object_r:fs_t storage-pool/media By default all four contexts are set to 'none'. Further information on SELinux contexts is detailed in mount(8) and selinux(8) man pages. Signed-off-by: Matthew Thode <prometheanfire@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Richard Yao <ryao@gentoo.org> Closes #1504
137 lines
3.2 KiB
Groff
137 lines
3.2 KiB
Groff
'\" t
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.\"
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.\" CDDL HEADER START
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.\"
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.\" The contents of this file are subject to the terms of the
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.\" Common Development and Distribution License (the "License").
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.\" You may not use this file except in compliance with the License.
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.\"
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.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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.\" or http://www.opensolaris.org/os/licensing.
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.\" See the License for the specific language governing permissions
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.\" and limitations under the License.
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.\"
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.\" When distributing Covered Code, include this CDDL HEADER in each
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.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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.\" If applicable, add the following below this CDDL HEADER, with the
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.\" fields enclosed by brackets "[]" replaced with your own identifying
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.\" information: Portions Copyright [yyyy] [name of copyright owner]
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.\"
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.\" CDDL HEADER END
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.\"
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.\"
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.\" Copyright 2013 Darik Horn <dajhorn@vanadac.com>. All rights reserved.
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.\"
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.TH mount.zfs 8 "2013 FEB 28" "ZFS on Linux" "System Administration Commands"
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.SH NAME
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mount.zfs \- mount a ZFS filesystem
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.SH SYNOPSIS
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.LP
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.BI "mount.zfs [\-sfnvh] [\-o " options "]" " dataset mountpoint
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.SH DESCRIPTION
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.BR mount.zfs
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is part of the zfsutils package for Linux. It is a helper program that
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is usually invoked by the
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.BR mount (8)
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or
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.BR zfs (8)
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commands to mount a ZFS dataset.
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All
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.I options
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are handled according to the FILESYSTEM INDEPENDENT MOUNT OPTIONS
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section in the
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.BR mount (8)
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manual, except for those described below.
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The
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.I dataset
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parameter is a ZFS filesystem name, as output by the
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.B "zfs list -H -o name
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command. This parameter never has a leading slash character and is
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not a device name.
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The
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.I mountpoint
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parameter is the path name of a directory.
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.SH OPTIONS
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.TP
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.BI "\-s"
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Ignore bad or sloppy mount options.
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.TP
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.BI "\-f"
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Do a fake mount; do not perform the mount operation.
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.TP
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.BI "\-n"
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Do not update the /etc/mtab file.
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.TP
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.BI "\-v"
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Increase verbosity.
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.TP
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.BI "\-h"
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Print the usage message.
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.TP
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.BI "\-o context"
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This flag sets the SELinux context for all files in the filesytem
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under that mountpoint.
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.TP
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.BI "\-o fscontext"
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This flag sets the SELinux context for the filesytem being mounted.
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.TP
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.BI "\-o defcontext"
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This flag sets the SELinux context for unlabled files.
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.TP
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.BI "\-o rootcontext"
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This flag sets the SELinux context for the root inode of the filesystem.
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.TP
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.BI "\-o legacy"
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This private flag indicates that the
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.I dataset
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has an entry in the /etc/fstab file.
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.TP
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.BI "\-o noxattr"
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This private flag disables extended attributes.
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.TP
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.BI "\-o xattr
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This private flag enables extended attributes and, if appropriate,
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adds a ZFS context to the selinux system policy.
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.TP
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.BI "\-o zfsutil"
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This private flag indicates that
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.BR mount (8)
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is being called by the
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.BR zfs (8)
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command.
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.SH NOTES
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ZFS conventionally requires that the
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.I mountpoint
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be an empty directory, but the Linux implementation inconsistently
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enforces the requirement.
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The
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.BR mount.zfs
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helper does not mount the contents of zvols.
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.SH FILES
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.TP 18n
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.I /etc/fstab
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The static filesystem table.
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.TP
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.I /etc/mtab
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The mounted filesystem table.
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.SH "AUTHORS"
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The primary author of
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.BR mount.zfs
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is Brian Behlendorf <behlendorf1@llnl.gov>.
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This man page was written by Darik Horn <dajhorn@vanadac.com>.
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.SH "SEE ALSO"
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.BR fstab (5),
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.BR mount (8),
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.BR zfs (8)
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