148855f74e
Since PyMI requires the MI API, available only since Windows 8 / Windows Server 2012 or as an addon on some previous versions, we need to ensure that we fall back to the legacy WMI module if PyMI cannot be loaded. Partially-Implements: blueprint json-network-config Change-Id: Ibded4cee3d3d7dc39e53bca12e015c9ef83c7f3d
97 lines
3.8 KiB
Python
97 lines
3.8 KiB
Python
# Copyright 2013 Cloudbase Solutions Srl
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import ctypes
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from oslo_log import log as oslo_logging
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from six.moves import winreg
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from cloudbaseinit import exception
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from cloudbaseinit.utils.windows import kernel32
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from cloudbaseinit.utils.windows.storage import base
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from cloudbaseinit.utils.windows import wmi_loader
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wmi = wmi_loader.wmi()
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LOG = oslo_logging.getLogger(__name__)
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class WSMStorageManager(base.BaseStorageManager):
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def __init__(self):
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self._conn = wmi.WMI(moniker='//./Root/Microsoft/Windows/Storage')
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def extend_volumes(self, volume_indexes=None):
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volumes = self._conn.MSFT_Volume()
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for idx, volume in enumerate(volumes, 1):
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# TODO(alexpilotti): don't rely on the volumes WMI query order
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if volume_indexes and idx not in volume_indexes:
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continue
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partitions = volume.associators(wmi_result_class='MSFT_Partition')
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for partition in partitions:
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(ret_val, _, size_max, _) = partition.GetSupportedSize()
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if ret_val:
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raise exception.CloudbaseInitException(
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"GetSupportedSize failed with error: %s" % ret_val)
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if int(size_max) > int(partition.Size):
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LOG.info('Extending partition "%(partition_number)s" '
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'to %(size)s bytes' %
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{'partition_number': partition.PartitionNumber,
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'size': size_max})
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(ret_val, _) = partition.Resize(size_max)
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if ret_val:
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raise exception.CloudbaseInitException(
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"Resize failed with error: %s" % ret_val)
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def get_san_policy(self):
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with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE,
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'SYSTEM\\CurrentControlSet\\Services\\partmgr\\'
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'Parameters') as key:
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try:
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san_policy = winreg.QueryValueEx(key, 'SanPolicy')[0]
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except WindowsError as ex:
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if ex.winerror != 2:
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raise
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san_policy = base.SAN_POLICY_OFFLINE_SHARED
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return san_policy
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def set_san_policy(self, san_policy):
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if san_policy != base.SAN_POLICY_ONLINE:
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raise exception.CloudbaseInitException(
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"Only SAN_POLICY_ONLINE is currently supported")
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handle = kernel32.CreateFileW(
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u"\\\\.\\PartmgrControl",
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kernel32.GENERIC_READ | kernel32.GENERIC_WRITE,
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kernel32.FILE_SHARE_READ | kernel32.FILE_SHARE_WRITE,
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None, kernel32.OPEN_EXISTING, 0, None)
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if handle == kernel32.INVALID_HANDLE_VALUE:
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raise exception.WindowsCloudbaseInitException(
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"Cannot access PartmgrControl: %r")
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try:
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input_data_online = ctypes.c_int64(0x100000008)
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input_data_size = 8
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control_code = 0x7C204
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if not kernel32.DeviceIoControl(
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handle, control_code, ctypes.addressof(input_data_online),
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input_data_size, None, 0, None, None):
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raise exception.WindowsCloudbaseInitException(
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"DeviceIoControl failed: %r")
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finally:
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kernel32.CloseHandle(handle)
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