118 lines
4.1 KiB
Python
118 lines
4.1 KiB
Python
#
|
|
# Copyright 2011, 2013 Red Hat, Inc.
|
|
# Cole Robinson <crobinso@redhat.com>
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software
|
|
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
# MA 02110-1301 USA.
|
|
|
|
import os
|
|
|
|
from virtinst import VirtualDevice
|
|
from virtinst.xmlbuilder import XMLProperty
|
|
|
|
|
|
class VirtualFilesystem(VirtualDevice):
|
|
virtual_device_type = VirtualDevice.VIRTUAL_DEV_FILESYSTEM
|
|
|
|
TYPE_MOUNT = "mount"
|
|
TYPE_TEMPLATE = "template"
|
|
TYPE_FILE = "file"
|
|
TYPE_BLOCK = "block"
|
|
TYPE_RAM = "ram"
|
|
TYPE_DEFAULT = "default"
|
|
TYPES = [TYPE_MOUNT, TYPE_TEMPLATE, TYPE_FILE, TYPE_BLOCK, TYPE_RAM, TYPE_DEFAULT]
|
|
|
|
MODE_PASSTHROUGH = "passthrough"
|
|
MODE_MAPPED = "mapped"
|
|
MODE_SQUASH = "squash"
|
|
MODE_DEFAULT = "default"
|
|
MODES = [MODE_PASSTHROUGH, MODE_MAPPED, MODE_SQUASH, MODE_DEFAULT]
|
|
|
|
WRPOLICY_IMM = "immediate"
|
|
WRPOLICY_DEFAULT = "default"
|
|
WRPOLICIES = [WRPOLICY_IMM, WRPOLICY_DEFAULT]
|
|
|
|
DRIVER_PATH = "path"
|
|
DRIVER_HANDLE = "handle"
|
|
DRIVER_LOOP = "loop"
|
|
DRIVER_NBD = "nbd"
|
|
DRIVER_DEFAULT = "default"
|
|
DRIVERS = [DRIVER_PATH, DRIVER_HANDLE, DRIVER_LOOP, DRIVER_NBD, DRIVER_DEFAULT]
|
|
|
|
NBD_FORMATS = ["raw", "bochs", "cloop", "cow", "dmg", "iso", "qcow",
|
|
"qcow2", "qed", "vmdk", "vpc", "fat", "vhd", "vdi"]
|
|
|
|
@staticmethod
|
|
def type_to_source_prop(fs_type):
|
|
"""
|
|
Convert a value of VirtualFilesystem.type to it's associated XML
|
|
source @prop name
|
|
"""
|
|
if (fs_type == VirtualFilesystem.TYPE_MOUNT or
|
|
fs_type == VirtualFilesystem.TYPE_DEFAULT or
|
|
fs_type is None):
|
|
return "dir"
|
|
elif fs_type == VirtualFilesystem.TYPE_TEMPLATE:
|
|
return "name"
|
|
elif fs_type == VirtualFilesystem.TYPE_FILE:
|
|
return "file"
|
|
elif fs_type == VirtualFilesystem.TYPE_BLOCK:
|
|
return "dev"
|
|
elif fs_type == VirtualFilesystem.TYPE_RAM:
|
|
return "usage"
|
|
return "dir"
|
|
|
|
|
|
type = XMLProperty("./@type",
|
|
default_cb=lambda s: None,
|
|
default_name=TYPE_DEFAULT)
|
|
mode = XMLProperty("./@accessmode",
|
|
default_cb=lambda s: None,
|
|
default_name=MODE_DEFAULT)
|
|
wrpolicy = XMLProperty("./driver/@wrpolicy",
|
|
default_cb=lambda s: None,
|
|
default_name=WRPOLICY_DEFAULT)
|
|
driver = XMLProperty("./driver/@type",
|
|
default_cb=lambda s: None,
|
|
default_name=DRIVER_DEFAULT)
|
|
format = XMLProperty("./driver/@format")
|
|
|
|
readonly = XMLProperty("./readonly", is_bool=True)
|
|
|
|
units = XMLProperty("./source/@units")
|
|
|
|
def _make_source_xpath(self):
|
|
return "./source/@" + self.type_to_source_prop(self.type)
|
|
source = XMLProperty(name="filesystem source",
|
|
make_xpath_cb=_make_source_xpath)
|
|
|
|
def _validate_set_target(self, val):
|
|
# In case of qemu for default fs type (mount) target is not
|
|
# actually a directory, it is merely a arbitrary string tag
|
|
# that is exported to the guest as a hint for where to mount
|
|
if (self.conn.is_qemu() and
|
|
(self.type == self.TYPE_DEFAULT or
|
|
self.type == self.TYPE_MOUNT)):
|
|
pass
|
|
elif not os.path.isabs(val):
|
|
raise ValueError(_("Filesystem target '%s' must be an absolute "
|
|
"path") % val)
|
|
return val
|
|
target = XMLProperty("./target/@dir",
|
|
set_converter=_validate_set_target)
|
|
|
|
|
|
VirtualFilesystem.register_type()
|