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blivet_utils.py
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# utils.py
# Classes working directly with blivet instance
#
# Copyright (C) 2014 Red Hat, Inc.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties 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. Any Red Hat trademarks that are incorporated in the
# source code or documentation are not subject to the GNU General Public
# License and may only be used or replicated with the express permission of
# Red Hat, Inc.
#
# Red Hat Author(s): Vojtech Trefny <[email protected]>
#
# ---------------------------------------------------------------------------- #
import blivet
from blivet.devices import PartitionDevice, LUKSDevice, LVMVolumeGroupDevice, BTRFSVolumeDevice, BTRFSSubVolumeDevice, MDRaidArrayDevice
from blivet.formats import DeviceFormat
from blivet.size import Size
from blivet.devicelibs.crypto import LUKS_METADATA_SIZE
from .communication.proxy_utils import ProxyDataContainer
import traceback
import parted
import subprocess
from .logs import set_logging, log_utils_call
from .i18n import _
from . import __version__
# ---------------------------------------------------------------------------- #
PARTITION_TYPE = {"primary": parted.PARTITION_NORMAL,
"logical": parted.PARTITION_LOGICAL,
"extended": parted.PARTITION_EXTENDED}
# ---------------------------------------------------------------------------- #
def lsblk():
p = subprocess.run(["lsblk", "-a", "-o", "+FSTYPE,LABEL,UUID,MOUNTPOINT"],
stdout=subprocess.PIPE, check=False)
return p.stdout.decode()
class FreeSpaceDevice(object):
""" Special class to represent free space on disk (device)
(blivet doesn't have class/device to represent free space)
"""
def __init__(self, free_size, dev_id, start, end, parents, logical=False):
"""
:param free_size: size of free space
:type free_size: blivet.size.Size
:param start: start block
:type end: int
:param end: end block
:type end: int
:param parents: list of parent devices
:type parents: blivet.devices.lib.ParentList
:param logical: is this free space inside extended partition
:type logical: bool
"""
self.name = _("free space")
self.size = free_size
self.id = dev_id
self.start = start
self.end = end
self.is_logical = logical
self.is_extended = False
self.is_primary = not logical
self.is_free_space = True
self.is_disk = False
self.direct = False
self._resizable = False
self.format_immutable = False
self.format = DeviceFormat(exists=True)
self.type = "free space"
self.children = []
self.parents = blivet.devices.lib.ParentList(items=parents)
self.disk = self._get_disk()
def _get_disk(self):
parents = self.parents
while parents:
if parents[0].is_disk:
return parents[0]
parents = parents[0].parents
return None
@property
def protected(self):
return self.parents[0].protected
@property
def is_empty_disk(self):
return len(self.parents) == 1 and self.parents[0].type in ("disk", "nvdimm") and \
not self.parents[0].children and self.parents[0].format.type and \
self.parents[0].format.type not in ("iso9660",)
@property
def is_uninitialized_disk(self):
return len(self.parents) == 1 and self.parents[0].type in ("disk", "nvdimm") and \
not self.parents[0].children and not self.parents[0].format.type
@property
def is_free_region(self):
return not (self.is_empty_disk or self.is_uninitialized_disk)
def __str__(self):
return "existing " + str(self.size) + " free space"
class BlivetUtils(object):
""" Class with utils directly working with blivet itselves
"""
installer_mode = False
def __init__(self, ignored_disks=None, exclusive_disks=None, flags=None):
self.ignored_disks = ignored_disks
self.exclusive_disks = exclusive_disks
self._resizable_filesystems = None
# create our log now, creating blivet.Blivet instance may fail
# and log some basic information -- version and lsblk output
_log_file, self.log = set_logging(component="blivet-gui-utils")
self.log.info("BlivetUtils, version: %s", __version__)
self.log.info("lsblk output:\n%s", lsblk())
self.storage = blivet.Blivet()
# logging
set_logging(component="blivet")
set_logging(component="program")
# ignore zram devices
blivet.udev.ignored_device_names.append(r"^zram")
# set blivet flags
if flags:
self._set_blivet_flags(flags)
blivet.flags.flags.allow_online_fs_resize = True
self.blivet_reset()
self._update_min_sizes_info()
def _set_blivet_flags(self, flags):
for flag, value in flags.items():
self.log.info("setting blivet flag '%s' to '%s'", flag, value)
setattr(blivet.flags.flags, flag, value)
@property
def resizable_filesystems(self):
if self._resizable_filesystems is None:
self._resizable_filesystems = []
for cls in blivet.formats.device_formats.values():
if cls._resizable:
self._resizable_filesystems.append(cls._type)
return self._resizable_filesystems
def log_debug(self, message, user_input):
""" Log message to the blivet-gui-utils log
"""
log_utils_call(log=self.log, message=message, user_input=user_input)
def get_disks(self):
""" Return list of all disk devices on current system
:returns: list of all "disk" devices
:rtype: list
"""
return [device for device in self.storage.disks if device.type != "mdarray"]
def get_group_devices(self):
""" Return list of LVM2 Volume Group devices
:returns: list of LVM2 VG devices
:rtype: list
"""
devices = {}
devices["lvm"] = self.storage.vgs
devices["raid"] = self.storage.mdarrays
devices["btrfs"] = self.storage.btrfs_volumes
return devices
def get_free_info(self):
""" Get list of free 'devices' (PVs and disk regions) that can be used
as parents for newly added devices
"""
free_devices = []
# free pvs
for pv in self.storage.pvs:
if not pv.children:
free_devices.append(("lvmpv", FreeSpaceDevice(pv.size, self.storage.next_id, None, None, [pv])))
# free disks and disk regions
for disk in self.storage.disks:
if disk.format.type not in ("disklabel",):
continue
free_space = blivet.partitioning.get_free_regions([disk], align=True)
for free in free_space:
free_size = blivet.size.Size(free.length * free.device.sectorSize)
if free_size > blivet.size.Size("2 MiB"): # skip very small free regions
free_devices.append(("free", FreeSpaceDevice(free_size, self.storage.next_id, free.start, free.end, [disk])))
return free_devices
def get_group_device(self, blivet_device):
""" Get 'group' device based on underlying device (lvmpv/btrfs/mdmember/luks partition)
"""
# already a group device
if blivet_device.type in ("btrfs volume", "lvmvg", "mdarray"):
return blivet_device
# encrypted group device -> get the luks device instead
if blivet_device.format.type in ("luks", "integrity"):
blivet_device = self.get_luks_device(blivet_device)
if not blivet_device.format or blivet_device.format.type not in ("lvmpv", "btrfs", "mdmember", "luks"):
return None
if len(blivet_device.children) != 1:
return None
group_device = blivet_device.children[0]
return group_device
def get_luks_device(self, blivet_device):
""" Get luks or integrity device based on underlying partition
"""
if not blivet_device.format or blivet_device.format.type not in ("luks", "integrity"):
return None
if len(blivet_device.children) != 1:
return None
if blivet_device.children[0].type == "integrity/dm-crypt" and blivet_device.children[0].children:
# LUKS + integrity
luks_device = blivet_device.children[0].children[0]
else:
# only integrity device
luks_device = blivet_device.children[0]
return luks_device
def get_children(self, blivet_device):
""" Get partitions (children) of selected device
:param blivet_device: blivet device
:type blivet_device: blivet.device.Device
:returns: list of child devices
:rtype: list of blivet.device.Device
"""
if not blivet_device:
return []
childs = blivet_device.children
if blivet_device.type == "lvmvg" and blivet_device.free_space > blivet.size.Size(0):
childs.append(FreeSpaceDevice(blivet_device.free_space, self.storage.next_id, None, None, [blivet_device]))
return childs
def get_disk_children(self, blivet_device):
if not blivet_device.is_disk:
raise TypeError("device %s is not a disk" % blivet_device.name)
if blivet_device.is_disk and not blivet_device.format.type:
if blivet_device.format.name != "Unknown":
# disk with unsupported format
return ProxyDataContainer(partitions=[blivet_device], extended=None, logicals=None)
else:
# empty disk without disk label
partitions = [FreeSpaceDevice(blivet_device.size, self.storage.next_id, 0, blivet_device.current_size, [blivet_device], False)]
return ProxyDataContainer(partitions=partitions, extended=None, logicals=None)
if blivet_device.format and blivet_device.format.type not in ("disklabel", "btrfs", "luks", None):
# special occasion -- raw device format
return ProxyDataContainer(partitions=[blivet_device], extended=None, logicals=None)
if blivet_device.format and blivet_device.format.type == "btrfs" and blivet_device.children:
# btrfs volume on raw device
btrfs_volume = blivet_device.children[0]
return ProxyDataContainer(partitions=[btrfs_volume], extended=None, logicals=None)
if blivet_device.format and blivet_device.format.type in ("luks", "integrity"):
if blivet_device.children:
luks = self.get_luks_device(blivet_device)
else:
luks = blivet_device
return ProxyDataContainer(partitions=[luks], extended=None, logicals=None)
partitions = blivet_device.children
# extended partition
extended = self._get_extended_partition(blivet_device, partitions)
# logical partitions + 'logical' free space
logicals = self._get_logical_partitions(blivet_device, partitions) + self._get_free_logical(blivet_device)
# primary partitions + 'primary' free space
primaries = self._get_primary_partitions(blivet_device, partitions) + self._get_free_primary(blivet_device)
def _sort_partitions(part): # FIXME: move to separate 'utils' file
if part.type not in ("free space", "partition"):
raise ValueError
if part.type == "free space":
return part.start
else:
return part.parted_partition.geometry.start
if extended:
partitions = sorted(primaries + [extended], key=_sort_partitions)
else:
partitions = sorted(primaries, key=_sort_partitions)
logicals = sorted(logicals, key=_sort_partitions)
return ProxyDataContainer(partitions=partitions, extended=extended, logicals=logicals)
def _get_extended_partition(self, blivet_device, partitions=None):
if not blivet_device.is_disk or not blivet_device.format or blivet_device.format.type != "disklabel":
return None
extended = None
if partitions is None:
partitions = blivet_device.children
for part in partitions:
if part.type == "partition" and part.is_extended:
extended = part
break # only one extended partition
return extended
def _get_logical_partitions(self, blivet_device, partitions=None):
if not blivet_device.is_disk or not blivet_device.format or blivet_device.format.type != "disklabel":
return []
logicals = []
if partitions is None:
partitions = blivet_device.children
for part in partitions:
if part.type == "partition" and part.is_logical:
logicals.append(part)
return logicals
def _get_primary_partitions(self, blivet_device, partitions=None):
if not blivet_device.is_disk or not blivet_device.format or blivet_device.format.type != "disklabel":
return []
primaries = []
if partitions is None:
partitions = blivet_device.children
for part in partitions:
if part.type == "partition" and part.is_primary:
primaries.append(part)
return primaries
def _get_free_logical(self, blivet_device):
if not blivet_device.is_disk or not blivet_device.format or blivet_device.format.type != "disklabel":
return []
extended = blivet_device.format.extended_partition
if not extended:
return []
free_logical = []
free_regions = blivet.partitioning.get_free_regions([blivet_device], align=True)
for region in free_regions:
region_size = blivet.size.Size(region.length * region.device.sectorSize)
if region_size < blivet.size.Size("4 MiB"):
continue
if region.start >= extended.geometry.start and \
region.end <= extended.geometry.end:
free_logical.append(FreeSpaceDevice(region_size, self.storage.next_id, region.start, region.end, [blivet_device], True))
return free_logical
def _get_free_primary(self, blivet_device):
if not blivet_device.is_disk or not blivet_device.format or blivet_device.format.type != "disklabel":
return []
free_primary = []
extended = blivet_device.format.extended_partition
free_regions = blivet.partitioning.get_free_regions([blivet_device], align=True)
for region in free_regions:
region_size = blivet.size.Size(region.length * region.device.sectorSize)
if region_size < blivet.size.Size("4 MiB"):
continue
if extended and not (region.start >= extended.geometry.start and
region.end <= extended.geometry.end):
free_primary.append(FreeSpaceDevice(region_size, self.storage.next_id, region.start, region.end, [blivet_device], False))
elif not extended:
free_primary.append(FreeSpaceDevice(region_size, self.storage.next_id, region.start, region.end, [blivet_device], False))
return free_primary
def get_roots(self, blivet_device):
""" Get list of parents for selected device with its structure """
roots = set([])
if blivet_device.type == "lvmvg":
for pv in blivet_device.pvs:
roots.add(self._get_root_device(pv))
elif blivet_device.type in ("mdarray", "btrfs volume"):
for member in blivet_device.members:
roots.add(self._get_root_device(member))
elif blivet_device.type in ("luks/dm-crypt", "integrity/dm-crypt"):
roots.add(self._get_root_device(blivet_device.raw_device))
return roots
def _get_root_device(self, blivet_device):
if blivet_device.is_disk:
return blivet_device
elif blivet_device.type in ("mdarray",):
return blivet_device
elif blivet_device.type in ("lvmlv", "lvmthinlv"):
return blivet_device.vg
elif blivet_device.parents and blivet_device.parents[0].type in ("mdarray", "mdmember"):
return blivet_device.parents[0]
elif blivet_device.type in ("luks/dm-crypt", "integrity/dm-crypt"):
return self._get_root_device(blivet_device.raw_device)
# loop devices don't have the "disk" property so just return its
# parent (FileDevice instance)
elif blivet_device.type == "loop":
return blivet_device.parents[0]
else:
return blivet_device.disk
def get_free_device(self, blivet_device):
""" Get FreeSpaceDevice object for selected device (e.g. VG) """
# VG -- just get free space in it
if blivet_device.type == "lvmvg":
return FreeSpaceDevice(free_size=blivet_device.free_space,
dev_id=self.storage.next_id,
start=None, end=None,
parents=[blivet_device])
# LV -- we are adding a snapshot --> we need free space in the VG
elif blivet_device.type == "lvmlv":
return FreeSpaceDevice(free_size=blivet_device.vg.free_space,
dev_id=self.storage.next_id,
start=None, end=None,
parents=[blivet_device])
# Thin Pool -- size of the thin LVs/snapshots is limited by the size of the pool
elif blivet_device.type == "lvmthinpool":
return FreeSpaceDevice(free_size=blivet_device.size,
dev_id=self.storage.next_id,
start=None, end=None,
parents=[blivet_device])
# Btrfs Volume -- size of the subvolumes/snapshots is limited by the size of the volume
elif blivet_device.type == "btrfs volume":
return FreeSpaceDevice(free_size=blivet_device.size,
dev_id=self.storage.next_id,
start=None, end=None,
parents=[blivet_device])
# something else, just return size of the device and hope for the best
else:
return FreeSpaceDevice(free_size=blivet_device.size,
dev_id=self.storage.next_id,
start=None, end=None,
parents=[blivet_device])
def _delete_disk_label(self, disk_device):
""" Delete current disk label
:param disk_device: blivet device
:type disk_device: blivet.Device
"""
try:
if disk_device.format.exists:
disk_device.format.teardown()
action = blivet.deviceaction.ActionDestroyFormat(disk_device)
self.storage.devicetree.actions.add(action)
except Exception as e: # pylint: disable=broad-except
return ProxyDataContainer(success=False, actions=None, message=None, exception=e,
traceback=traceback.format_exc())
return ProxyDataContainer(success=True, actions=[action], message=None, exception=None, traceback=None)
def _delete_format(self, blivet_device):
actions = []
try:
if not blivet_device.format_immutable:
ac_fmt = blivet.deviceaction.ActionDestroyFormat(blivet_device)
self.storage.devicetree.actions.add(ac_fmt)
actions.append(ac_fmt)
except Exception as e: # pylint: disable=broad-except
return ProxyDataContainer(success=False, actions=None, message=None, exception=e,
traceback=traceback.format_exc())
return ProxyDataContainer(success=True, actions=actions, message=None, exception=None,
traceback=None)
def _delete_device(self, blivet_device):
actions = []
if blivet_device.children:
for device in blivet_device.children:
res = self._delete_device(device)
if not res.success:
return res
else:
actions.extend(res.actions)
try:
if not blivet_device.format_immutable:
ac_fmt = blivet.deviceaction.ActionDestroyFormat(blivet_device)
self.storage.devicetree.actions.add(ac_fmt)
actions.append(ac_fmt)
ac_dev = blivet.deviceaction.ActionDestroyDevice(blivet_device)
self.storage.devicetree.actions.add(ac_dev)
actions.append(ac_dev)
except Exception as e: # pylint: disable=broad-except
return ProxyDataContainer(success=False, actions=None, message=None, exception=e,
traceback=traceback.format_exc())
return ProxyDataContainer(success=True, actions=actions, message=None, exception=None,
traceback=None)
def delete_device(self, blivet_device, delete_parents):
""" Delete device
:param blivet_device: blivet device
:type blivet_device: blivet.Device
:param delete_parents: delete parent devices too?
:type delete_parents: bool
"""
log_msg = "Deleting device '%s':\n" % blivet_device.name
log_utils_call(log=self.log, message=log_msg,
user_input={"device": blivet_device, "delete_parents": delete_parents})
actions = []
if blivet_device.is_disk:
result = self._delete_disk_label(blivet_device)
return result
result = self._delete_device(blivet_device)
if not result.success:
return result
else:
actions.extend(result.actions)
# for encrypted partitions/lvms delete the luks-formatted partition too
if blivet_device.type in ("luks/dm-crypt", "integrity/dm-crypt"):
for parent in blivet_device.parents:
result = self._delete_device(parent)
if not result.success:
return result
else:
actions.extend(result.actions)
# destroy action for MD array is no-op, the array is destroyed by removing
# the mdmember format from the parents
if blivet_device.type == "mdarray":
for parent in blivet_device.parents:
if parent.format.exists:
try:
parent.format.teardown()
except Exception as e: # pylint: disable=broad-except
return ProxyDataContainer(success=False, actions=None, message=None, exception=e,
traceback=traceback.format_exc())
result = self._delete_format(parent)
if not result.success:
return result
else:
actions.extend(result.actions)
# for btrfs volumes delete parents partition after deleting volume
if blivet_device.type in ("btrfs volume", "mdarray", "lvmvg") and delete_parents:
for parent in blivet_device.parents:
result = self.delete_device(parent, delete_parents=False)
if not result.success:
return result
else:
actions.extend(result.actions)
return ProxyDataContainer(success=True, actions=actions, message=None, exception=None, traceback=None)
def _has_snapshots(self, blivet_device):
for lvs in blivet_device.vg.children:
if lvs.is_snapshot_lv and lvs.origin == blivet_device:
return True
return False
def _update_min_sizes_info(self):
""" Update information of minimal size for resizable devices
"""
for device in self.storage.devices:
if device.type in ("partition", "lvmlv", "lvmpv", "luks/dm-crypt"):
# skip mounted devices
if hasattr(device.format, "system_mountpoint") and device.format.system_mountpoint:
continue
if device.format.type and hasattr(device.format, "update_size_info"):
try:
device.format.update_size_info()
except blivet.errors.FSError:
pass
def device_resizable(self, blivet_device):
""" Is given device resizable
:param blivet_device: blivet device
:type blivet_device: blivet.Device
:returns: device resizable, min_size, max_size, size
:rtype: tuple
"""
if not blivet_device._resizable:
msg = _("Resizing of {type} devices is currently not supported").format(type=blivet_device.type)
return ProxyDataContainer(resizable=False, error=msg, min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
elif blivet_device.protected:
msg = _("Protected devices cannot be resized")
return ProxyDataContainer(resizable=False, error=msg, min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
elif blivet_device.format_immutable:
msg = _("Immutable formats cannot be resized")
return ProxyDataContainer(resizable=False, error=msg, min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
elif blivet_device.children:
msg = _("Devices with children cannot be resized")
return ProxyDataContainer(resizable=False, error=msg, min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
elif not blivet_device.format.type:
# unformatted devices are not resizable (except extended partitions)
if (blivet_device.type == "partition" and blivet_device.is_extended and (blivet_device.max_size > blivet_device.size or
blivet_device.min_size < blivet_device.size)):
return ProxyDataContainer(resizable=True, error=None, min_size=blivet_device.min_size,
max_size=blivet_device.max_size)
else:
msg = _("Unformatted devices are not resizable")
return ProxyDataContainer(resizable=False, error=msg, min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
elif blivet_device.format.type not in self.resizable_filesystems:
# unfortunately we can't use format._resizable here because blivet uses it to both mark
# formats as not resizable and force users to call update_size_info on resizable formats
msg = _("Resizing of {type} format is currently not supported").format(type=blivet_device.format.type)
return ProxyDataContainer(resizable=False, error=msg, min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
elif not blivet_device.format._resize.available:
msg = _("Tools for resizing format {type} are not available.").format(type=blivet_device.format.type)
return ProxyDataContainer(resizable=False, error=msg, min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
elif not blivet_device.format.exists:
# TODO: we could support this by simply changing formats target size but we'd need
# a workaround for the missing action
msg = _("Formats scheduled to be created cannot be resized")
return ProxyDataContainer(resizable=False, error=msg, min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
elif blivet_device.format.type and not hasattr(blivet_device.format, "update_size_info"):
msg = _("Format {type} doesn't support updating its size limit information").format(format_type=blivet_device.format.type)
return ProxyDataContainer(resizable=False, error=msg, min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
elif hasattr(blivet_device.format, "system_mountpoint") and blivet_device.format.system_mountpoint and \
not (blivet_device.format._resize_support & blivet.formats.fslib.FSResize.ONLINE_GROW or
blivet_device.format._resize_support & blivet.formats.fslib.FSResize.ONLINE_SHRINK):
msg = _("Mounted devices cannot be resized")
return ProxyDataContainer(resizable=False, error=msg, min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
elif blivet_device.type in ("lvmlv",) and self._has_snapshots(blivet_device):
msg = _("Logical Volumes with snapshots cannot be resized.")
return ProxyDataContainer(resizable=False, error=msg, min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
elif blivet_device.type == "luks/dm-crypt" and blivet_device.raw_device.format.luks_version == "luks2":
msg = _("Resizing of LUKS2 devices is currently not supported.")
return ProxyDataContainer(resizable=False, error=msg, min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
if not self.installer_mode:
try:
blivet_device.format.update_size_info()
if blivet_device.type == "luks/dm-crypt":
blivet_device.raw_device.format.update_size_info()
except blivet.errors.FSError as e:
msg = _("Failed to update filesystem size info: {error}").format(error=str(e))
return ProxyDataContainer(resizable=False, error=msg,
min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
if blivet_device.resizable and blivet_device.format.resizable:
if blivet_device.type == "luks/dm-crypt":
min_size = blivet_device.min_size
max_size = blivet_device.raw_device.max_size - LUKS_METADATA_SIZE
else:
min_size = blivet_device.min_size
max_size = blivet_device.max_size
return ProxyDataContainer(resizable=True, error=None, min_size=min_size,
max_size=max_size)
else:
if not blivet_device.resizable:
msg = _("Device is not resizable.")
elif not blivet_device.format.resizable:
msg = _("Format is not resizable after updating its size limit information.")
return ProxyDataContainer(resizable=False, error=msg, min_size=blivet.size.Size("1 MiB"),
max_size=blivet_device.size)
def format_device(self, user_input):
log_msg = "Formatting device '%s'\n" % user_input.edit_device.name
log_utils_call(log=self.log, message=log_msg,
user_input=user_input)
fmt_actions = []
fmt_actions.append(blivet.deviceaction.ActionDestroyFormat(user_input.edit_device))
if user_input.filesystem:
fmt_actions.extend(self._create_format(user_input, user_input.edit_device))
try:
for ac in fmt_actions:
self.storage.devicetree.actions.add(ac)
return ProxyDataContainer(success=True, actions=fmt_actions, message=None, exception=None, traceback=None)
except Exception as e: # pylint: disable=broad-except
return ProxyDataContainer(success=False, actions=None, message=None, exception=e,
traceback=traceback.format_exc())
def resize_device(self, user_input):
device = user_input.edit_device
log_msg = "Resizing device '%s'\n" % device.name
log_utils_call(log=self.log, message=log_msg,
user_input=user_input)
if not user_input.resize or user_input.size == device.size:
return ProxyDataContainer(success=True, actions=None, message=None, exception=None, traceback=None)
resize_actions = []
# align size first
if device.type == "partition":
aligned_size = device.align_target_size(user_input.size)
elif device.type == "luks/dm-crypt":
aligned_size = device.raw_device.align_target_size(user_input.size)
else:
aligned_size = user_input.size
# resize format
if device.format.resizable:
resize_actions.append(blivet.deviceaction.ActionResizeFormat(device, aligned_size))
# resize device
if device.type == "luks/dm-crypt":
resize_actions.append(blivet.deviceaction.ActionResizeDevice(device, aligned_size))
resize_actions.append(blivet.deviceaction.ActionResizeFormat(device.raw_device, aligned_size))
resize_actions.append(blivet.deviceaction.ActionResizeDevice(device.raw_device, aligned_size + LUKS_METADATA_SIZE))
else:
resize_actions.append(blivet.deviceaction.ActionResizeDevice(device, aligned_size))
# reverse order if grow
if aligned_size > device.current_size:
resize_actions.reverse()
try:
for ac in resize_actions:
self.storage.devicetree.actions.add(ac)
blivet.partitioning.do_partitioning(self.storage)
return ProxyDataContainer(success=True, actions=resize_actions, message=None, exception=None, traceback=None)
except Exception as e: # pylint: disable=broad-except
return ProxyDataContainer(success=False, actions=None, message=None, exception=e,
traceback=traceback.format_exc())
def relabel_format(self, user_input):
log_msg = "Setting format label for '%s'\n" % user_input.edit_device.name
log_utils_call(log=self.log, message=log_msg,
user_input=user_input)
label_ac = blivet.deviceaction.ActionConfigureFormat(device=user_input.edit_device,
attr="label",
new_value=user_input.label)
try:
self.storage.devicetree.actions.add(label_ac)
except Exception as e: # pylint: disable=broad-except
return ProxyDataContainer(success=False, actions=None, message=None, exception=e,
traceback=traceback.format_exc())
else:
return ProxyDataContainer(success=True, actions=[label_ac], message=None,
exception=None, traceback=None)
def edit_lvmvg_device(self, user_input):
""" Edit LVM Volume group
"""
log_msg = "Editing parents for LVM volume group '%s'\n" % user_input.edit_device.name
log_utils_call(log=self.log, message=log_msg,
user_input=user_input)
actions = []
if user_input.action_type == "add":
for parent in user_input.parents_list:
result = self._add_lvmvg_parent(user_input.edit_device, parent)
if result.success:
actions.extend(result.actions)
else:
return result
elif user_input.action_type == "remove":
for parent in user_input.parents_list:
result = self._remove_lvmvg_parent(user_input.edit_device, parent)
if result.success:
actions.extend(result.actions)
else:
return result
return ProxyDataContainer(success=True, actions=actions, message=None, exception=None, traceback=None)
def _pick_device_name(self, name, parent_device=None, snapshot=False):
""" Pick name for device.
If user chose a name, check it and (if necessary) change it
:param name: name selected by user
:type name: str
:param parent_device: parent device
:type parent_device: blivet.Device
:returns: new (valid) name
:rtype: str
"""
if not name:
if parent_device:
# parent name is part of the child name only on LVM
if parent_device.type == "lvmvg":
name = self.storage.suggest_device_name(parent=parent_device, swap=False)
else:
name = self.storage.suggest_device_name(swap=False)
elif snapshot:
name = self.storage.suggest_device_name(parent=parent_device, swap=False, prefix="snapshot")
else:
name = self.storage.suggest_container_name()
else:
# if name exists add -XX suffix
if name in self.storage.names or (parent_device and parent_device.name + "-" + name in self.storage.names):
for i in range(100):
if name + "-" + str(i) not in self.storage.names:
name = name + "-" + str(i)
break
# if still exists let blivet pick it
if name in self.storage.names:
name = self._pick_device_name(name=None, parent_device=parent_device)
return name
def _create_format(self, user_input, device):
fmt_type = user_input.filesystem
if fmt_type == "btrfs":
actions = self._create_btrfs_format(user_input, device)
return actions
if fmt_type is not None:
if fmt_type == "ntfs":
fmt_options = "-f"
else:
fmt_options = ""
new_fmt = blivet.formats.get_format(fmt_type=user_input.filesystem,
label=user_input.label,
mountpoint=user_input.mountpoint,
create_options=fmt_options)
return [blivet.deviceaction.ActionCreateFormat(device, new_fmt)]
def _create_btrfs_format(self, user_input, device):
actions = []
# format the device to btrfs
btrfs_fmt = blivet.formats.get_format(fmt_type="btrfs")
actions.append(blivet.deviceaction.ActionCreateFormat(device, btrfs_fmt))
if getattr(user_input, "create_volume", True):
device.format = btrfs_fmt
new_btrfs = BTRFSVolumeDevice(parents=[device])
new_btrfs.format = blivet.formats.get_format("btrfs", label=user_input.label, mountpoint=user_input.mountpoint)
actions.append(blivet.deviceaction.ActionCreateDevice(new_btrfs))
return actions
def _align_partition(self, user_input):
if hasattr(user_input, "advanced"):
partition_type = user_input.advanced["parttype"] or "primary"
else:
partition_type = "primary"
start = user_input.size_selection.parents[0].free_space.start
end = user_input.size_selection.parents[0].free_space.end
size = user_input.size_selection.total_size
disk = user_input.size_selection.parents[0].parent_device
size_sectors = size // disk.format.sector_size
if partition_type == "logical":
extended = disk.format.extended_partition
if not extended:
# this should never happen
raise ValueError("Trying to add a logical partition to a disk without extended partition.")
if disk.format.logical_partitions:
# start 1 MiB after last logical partition
last_logical = sorted(disk.format.logical_partitions, key=lambda x: x.geometry.start)[-1]
start = int((last_logical.geometry.end) + (Size("1 MiB") / disk.format.sector_size))
else:
# first logical partition -- start 1 MiB after extended partition start
start = int((extended.geometry.start) + (Size("1 MiB") / disk.format.sector_size))
# align the start sector up
constraint = disk.format.parted_device.optimalAlignedConstraint
start = constraint.startAlign.alignUp(constraint.startRange, start)
# we moved start of the partition, it's possible we don't have enough free space now
if start + size_sectors > end:
size_sectors -= ((start + size_sectors) - end)
size = size_sectors * disk.format.sector_size
# align total size for the disklabel