268 lines
8.0 KiB
Python
268 lines
8.0 KiB
Python
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# Copyright 2017 Cloudbase Solutions Srl
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# All Rights Reserved.
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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 os_win.utils.winapi import constants as w_const
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from os_win.utils.winapi import wintypes
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lib_handle = None
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ISCSI_SECURITY_FLAGS = ctypes.c_uint64
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ISCSI_LOGIN_FLAGS = ctypes.c_uint32
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ISCSI_LOGIN_OPTIONS_INFO_SPECIFIED = ctypes.c_uint32
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ISCSI_AUTH_TYPES = wintypes.UINT
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ISCSI_DIGEST_TYPES = wintypes.UINT
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DEVICE_TYPE = wintypes.ULONG
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class ISCSI_TARGET_PORTAL(ctypes.Structure):
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_fields_ = [
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('SymbolicName', wintypes.WCHAR * w_const.MAX_ISCSI_PORTAL_NAME_LEN),
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('Address', wintypes.WCHAR * w_const.MAX_ISCSI_PORTAL_ADDRESS_LEN),
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('Socket', wintypes.USHORT)
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]
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PISCSI_TARGET_PORTAL = ctypes.POINTER(ISCSI_TARGET_PORTAL)
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class ISCSI_LOGIN_OPTIONS(ctypes.Structure):
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_fields_ = [
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('Version', wintypes.ULONG),
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('InformationSpecified', ISCSI_LOGIN_OPTIONS_INFO_SPECIFIED),
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('LoginFlags', ISCSI_LOGIN_FLAGS),
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('AuthType', ISCSI_AUTH_TYPES),
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('HeaderDigest', ISCSI_DIGEST_TYPES),
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('DataDigest', ISCSI_DIGEST_TYPES),
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('MaximumConnections', wintypes.ULONG),
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('DefaultTime2Wait', wintypes.ULONG),
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('DefaultTime2Retain', wintypes.ULONG),
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('UsernameLength', wintypes.ULONG),
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('PasswordLength', wintypes.ULONG),
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('Username', wintypes.PSTR),
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('Password', wintypes.PSTR)
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]
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PISCSI_LOGIN_OPTIONS = ctypes.POINTER(ISCSI_LOGIN_OPTIONS)
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class SCSI_LUN_LIST(ctypes.Structure):
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_fields_ = [
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('OSLUN', wintypes.ULONG),
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('TargetLUN', wintypes.ULONGLONG)
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]
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PSCSI_LUN_LIST = ctypes.POINTER(SCSI_LUN_LIST)
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class ISCSI_UNIQUE_SESSION_ID(ctypes.Structure):
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_fields_ = [
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('AdapterUnique', wintypes.ULONGLONG),
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('AdapterSpecific', wintypes.ULONGLONG)
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]
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PISCSI_UNIQUE_SESSION_ID = ctypes.POINTER(ISCSI_UNIQUE_SESSION_ID)
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class ISCSI_UNIQUE_CONNECTION_ID(ISCSI_UNIQUE_SESSION_ID):
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pass
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PISCSI_UNIQUE_CONNECTION_ID = ctypes.POINTER(ISCSI_UNIQUE_CONNECTION_ID)
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class ISCSI_TARGET_MAPPING(ctypes.Structure):
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_fields_ = [
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('InitiatorName', wintypes.WCHAR * w_const.MAX_ISCSI_HBANAME_LEN),
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('TargetName', wintypes.WCHAR * (w_const.MAX_ISCSI_NAME_LEN + 1)),
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('OSDeviceName', wintypes.WCHAR * w_const.MAX_PATH),
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('SessionId', ISCSI_UNIQUE_SESSION_ID),
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('OSBusNumber', wintypes.ULONG),
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('OSTargetNumber', wintypes.ULONG),
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('LUNCount', wintypes.ULONG),
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('LUNList', PSCSI_LUN_LIST)
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]
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PISCSI_TARGET_MAPPING = ctypes.POINTER(ISCSI_TARGET_MAPPING)
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class PERSISTENT_ISCSI_LOGIN_INFO(ctypes.Structure):
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_fields_ = [
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('TargetName', wintypes.WCHAR * (w_const.MAX_ISCSI_NAME_LEN + 1)),
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('IsInformationalSession', wintypes.BOOLEAN),
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('InitiatorInstance', wintypes.WCHAR * w_const.MAX_ISCSI_HBANAME_LEN),
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('InitiatorPortNumber', wintypes.ULONG),
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('TargetPortal', ISCSI_TARGET_PORTAL),
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('SecurityFlags', ISCSI_SECURITY_FLAGS),
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('Mappings', PISCSI_TARGET_MAPPING),
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('LoginOptions', ISCSI_LOGIN_OPTIONS)
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]
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PPERSISTENT_ISCSI_LOGIN_INFO = ctypes.POINTER(PERSISTENT_ISCSI_LOGIN_INFO)
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class ISCSI_CONNECTION_INFO(ctypes.Structure):
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_fields_ = [
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('ConnectionId', ISCSI_UNIQUE_CONNECTION_ID),
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('InitiatorAddress', wintypes.PWSTR),
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('TargetAddress', wintypes.PWSTR),
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('InitiatorSocket', wintypes.USHORT),
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('TargetSocket', wintypes.USHORT),
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('CID', ctypes.c_ubyte * 2)
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]
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PISCSI_CONNECTION_INFO = ctypes.POINTER(ISCSI_CONNECTION_INFO)
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class ISCSI_SESSION_INFO(ctypes.Structure):
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_fields_ = [
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('SessionId', ISCSI_UNIQUE_SESSION_ID),
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('InitiatorName', wintypes.PWSTR),
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('TargetName', wintypes.PWSTR),
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('TargetNodeName', wintypes.PWSTR),
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('ISID', ctypes.c_ubyte * 6),
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('TSID', ctypes.c_ubyte * 2),
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('ConnectionCount', wintypes.ULONG),
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('Connections', PISCSI_CONNECTION_INFO)
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]
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PISCSI_SESSION_INFO = ctypes.POINTER(ISCSI_SESSION_INFO)
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class SCSI_ADDRESS(ctypes.Structure):
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_fields_ = [
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('Length', wintypes.ULONG),
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('PortNumber', ctypes.c_ubyte),
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('PathId', ctypes.c_ubyte),
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('TargetId', ctypes.c_ubyte),
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('Lun', ctypes.c_ubyte)
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]
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class STORAGE_DEVICE_NUMBER(ctypes.Structure):
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_fields_ = [
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('DeviceType', DEVICE_TYPE),
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('DeviceNumber', wintypes.DWORD),
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('PartitionNumber', wintypes.DWORD)
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]
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class ISCSI_DEVICE_ON_SESSION(ctypes.Structure):
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_fields_ = [
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('InitiatorName', wintypes.WCHAR * w_const.MAX_ISCSI_HBANAME_LEN),
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('TargetName', wintypes.WCHAR * (w_const.MAX_ISCSI_NAME_LEN + 1)),
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('ScsiAddress', SCSI_ADDRESS),
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('DeviceInterfaceType', wintypes.GUID),
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('DeviceInterfaceName', wintypes.WCHAR * w_const.MAX_PATH),
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('LegacyName', wintypes.WCHAR * w_const.MAX_PATH),
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('StorageDeviceNumber', STORAGE_DEVICE_NUMBER),
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('DeviceInstance', wintypes.ULONG)
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]
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PISCSI_DEVICE_ON_SESSION = ctypes.POINTER(ISCSI_DEVICE_ON_SESSION)
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def register():
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global lib_handle
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lib_handle = ctypes.windll.iscsidsc
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lib_handle.AddIScsiStaticTargetW.argtypes = [
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wintypes.PWSTR,
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wintypes.PWSTR,
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wintypes.ULONG,
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wintypes.BOOLEAN,
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PISCSI_TARGET_MAPPING,
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PISCSI_LOGIN_OPTIONS,
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wintypes.LPVOID # unused
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]
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lib_handle.AddIScsiStaticTargetW.restype = wintypes.ULONG
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lib_handle.GetDevicesForIScsiSessionW.argtypes = [
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PISCSI_UNIQUE_SESSION_ID,
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wintypes.PULONG,
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PISCSI_DEVICE_ON_SESSION
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]
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lib_handle.GetDevicesForIScsiSessionW.restype = wintypes.ULONG
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lib_handle.GetIScsiInitiatorNodeNameW.argtypes = [wintypes.PWCHAR]
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lib_handle.GetIScsiInitiatorNodeNameW.restype = wintypes.ULONG
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lib_handle.GetIScsiSessionListW.argtypes = [
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wintypes.PULONG,
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wintypes.PULONG,
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PISCSI_SESSION_INFO
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]
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lib_handle.GetIScsiSessionListW.restype = wintypes.ULONG
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lib_handle.LoginIScsiTargetW.argtypes = [
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wintypes.PWSTR,
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wintypes.BOOLEAN,
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wintypes.PWSTR,
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wintypes.ULONG,
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PISCSI_TARGET_PORTAL,
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ISCSI_SECURITY_FLAGS,
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PISCSI_TARGET_MAPPING,
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PISCSI_LOGIN_OPTIONS,
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wintypes.ULONG,
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wintypes.PCHAR,
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wintypes.BOOLEAN,
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PISCSI_UNIQUE_SESSION_ID,
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PISCSI_UNIQUE_CONNECTION_ID
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]
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lib_handle.LoginIScsiTargetW.restype = wintypes.ULONG
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lib_handle.LogoutIScsiTarget.argtypes = [PISCSI_UNIQUE_SESSION_ID]
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lib_handle.LogoutIScsiTarget.restype = wintypes.ULONG
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lib_handle.RemoveIScsiPersistentTargetW.argtypes = [
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wintypes.PWSTR,
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wintypes.ULONG,
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wintypes.PWSTR,
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PISCSI_TARGET_PORTAL
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]
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lib_handle.RemoveIScsiPersistentTargetW.restype = wintypes.ULONG
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lib_handle.RemoveIScsiStaticTargetW.argtypes = [wintypes.PWSTR]
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lib_handle.RemoveIScsiStaticTargetW.restype = wintypes.ULONG
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lib_handle.ReportIScsiInitiatorListW.argtypes = [
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wintypes.PULONG,
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wintypes.PWCHAR
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]
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lib_handle.ReportIScsiInitiatorListW.restype = wintypes.ULONG
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lib_handle.ReportIScsiPersistentLoginsW.argtypes = [
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wintypes.PULONG,
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PPERSISTENT_ISCSI_LOGIN_INFO,
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wintypes.PULONG
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]
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lib_handle.ReportIScsiPersistentLoginsW.restype = wintypes.ULONG
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lib_handle.ReportIScsiTargetsW.argtypes = [
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wintypes.BOOLEAN,
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wintypes.PULONG,
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wintypes.PWCHAR
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]
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lib_handle.ReportIScsiTargetsW.restype = wintypes.ULONG
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