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# coding=utf-8
# Storage Management Providers
#
# Copyright (C) 2014 Red Hat, Inc. 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,
# this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
# 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 HOLDERS AND CONTRIBUTORS "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 OWNER OR CONTRIBUTORS 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.
#
# The views and conclusions contained in the software and documentation are
# those of the authors and should not be interpreted as representing official
# policies, either expressed or implied, of the FreeBSD Project.
#
# Authors: Jan Synacek <jsynacek@redhat.com>
# Jan Safranek <jsafrane@redhat.com>
#
"""
Mount management.
Usage:
%(cmd)s list [ --all ] [ <target> ... ]
%(cmd)s create <device> <mountpoint> [ (-t <fs_type>) (-o <options>) ]
%(cmd)s delete <target>
%(cmd)s show [ --all ] [ <target> ... ]
Commands:
list List mounted filesystems with a device attached to them.
<target> can be specified either as device names
or mountpoints.
create Mount a specified device on the path given by mountpoint.
Optionally, filesystem type, common options (filesystem
independent) and filesystem specific options can be provided. If no
filesystem type is specified, it is automatically detected.
Options can be provided as a comma-separated string of
'option_name:value' items. Possible option names are:
AllowExecution AllowMandatoryLock AllowSUID AllowUserMount
AllowWrite Auto Dump FileSystemCheckOrder InterpretDevices
Silent SynchronousDirectoryUpdates SynchronousIO
UpdateAccessTimes UpdateDirectoryAccessTimes UpdateFullAccessTimes
UpdateRelativeAccessTimes
Possible option values for all of the options except for
FileSystemCheckOrder are 't', 'true', 'f', 'false'. All of them are
case insensitive.
The FileSystemCheckOrder option's value is a number.
In case an option is not recognized as being one of the possible
options listed above, it's used as a filesystem dependent option.
Examples:
create /dev/vda1 /mnt -t ext4 -o 'AllowWrite:F,InterpretDevices:false'
create /dev/vda2 /mnt -o 'FileSystemCheckOrder:2'
create /dev/vda3 /mnt -o 'user_xattr,barrier=0'
create /dev/vda4 /mnt -o 'Dump:t, AllowMandatoryLock:t, acl'
delete Unmount a mounted filesystem. Can be specified either as a device
path or a mountpoint.
show Show detailed information about mounted filesystems with a device
attached to them. <target> can be specified either as device names
or mountpoints.
<spec>. Optionally, show all mounted filesystems.
"""
from lmi.shell.LMIUtil import lmi_isinstance
from lmi.scripts.common import command
from lmi.scripts.common import get_logger
from lmi.scripts.common.formatter import command as fcmd
from lmi.scripts.storage import show, fs, lvm, mount, raid, partition
from lmi.scripts.storage.common import (size2str, get_devices, get_children,
get_parents, str2device, str2size, str2vg)
from lmi.scripts.common.errors import LmiFailed
LOG = get_logger(__name__)
def get_mounts_for_targets(ns, targets):
"""
Return list of LMI_MountedFilesystem instances for given devices or
directories.
:type mntspec: List of strings or LMIInstance/CIM_StorageExtents.
:param mntspec: Mount specifications. If a string is provided as a mount
specification, it can be either device name or mount
directory.
"""
mounts = []
for target in targets:
try:
device = str2device(ns, target)
if device:
target = device.Name
except LmiFailed:
# we did not find CIM_StorageExtent for the device, it must be non
# device filesystem specification
pass
mnts = ns.LMI_MountedFileSystem.instances({'FileSystemSpec':target}) + \
ns.LMI_MountedFileSystem.instances({'MountPointPath':target})
mounts += mnts
return mounts
class MountList(command.LmiLister):
COLUMNS = ('FileSystemSpec', 'FileSystemType', 'MountPointPath', 'Options')
ARG_ARRAY_SUFFIX = 's'
def execute(self, ns, targets=None, _all=None):
"""
Implementation of 'mount list' command.
"""
if targets:
mounts = get_mounts_for_targets(ns, targets)
else:
mounts = mount.get_mounts(ns)
if _all is False:
transients = [mnt.Name for mnt in ns.LMI_TransientFileSystem.instances()]
for mnt in mounts:
# treat root specially (can be mounted twice - as a rootfs and with
# a device)
if mnt.FileSystemSpec == 'rootfs':
continue
if _all is False and mnt.MountPointPath != '/':
# do not list nodevice filesystems
name = 'PATH=' + mnt.MountPointPath
if name in transients:
continue
yield(mnt.FileSystemSpec,
mnt.FileSystemType,
mnt.MountPointPath,
mount.build_opts_str(mnt))
class MountShow(command.LmiLister):
COLUMNS = ('Name', 'Value')
ARG_ARRAY_SUFFIX = 's'
def execute(self, ns, _all=None, targets=None):
"""
Implementation of 'mount show' command.
"""
if targets:
mounts = get_mounts_for_targets(ns, targets)
else:
mounts = mount.get_mounts(ns)
if _all is False:
transients = [mnt.Name for mnt in ns.LMI_TransientFileSystem.instances()]
yield fcmd.NewTableCommand('Mounted filesystems')
for mnt in mounts:
# treat root specially (can be mounted twice - as a rootfs and with
# a device)
if mnt.FileSystemSpec == 'rootfs':
continue
if _all is False and mnt.MountPointPath != '/':
# do not list nodevice filesystems
name = 'PATH=' + mnt.MountPointPath
if name in transients:
continue
yield('Filesystem', '%s (%s)' % (mnt.FileSystemSpec, mnt.FileSystemType))
yield('Mountpoint', mnt.MountPointPath)
yield('Options', mount.build_opts_str(mnt))
yield ''
class MountCreate(command.LmiCheckResult):
EXPECT = None
def execute(self, ns, device, mountpoint, fs_type=None, options=None):
"""
Implementation of 'mount create' command.
"""
return mount.mount_create(ns, device, mountpoint, fs_type, options)
class MountDelete(command.LmiCheckResult):
EXPECT = None
def execute(self, ns, target):
"""
Implementation of 'mount delete' command.
"""
return mount.mount_delete(ns, target)
class Mount(command.LmiCommandMultiplexer):
OWN_USAGE = __doc__
COMMANDS = {
'list' : MountList,
'create' : MountCreate,
'delete' : MountDelete,
'show' : MountShow,
}
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