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# Copyright (c) 2009-2010, Cloud Matrix Pty. Ltd.
# All rights reserved; available under the terms of the MIT License.
"""
fs.expose.dokan.libdokan: low-level ctypes interface to Dokan
"""
from ctypes import *
try:
DokanMain = windll.Dokan.DokanMain
DokanVersion = windll.Dokan.DokanVersion
except AttributeError:
raise ImportError("Dokan DLL not found")
from ctypes.wintypes import *
ULONG64 = c_ulonglong
ULONGLONG = c_ulonglong
PULONGLONG = POINTER(ULONGLONG)
UCHAR = c_ubyte
LPDWORD = POINTER(DWORD)
LONGLONG = c_longlong
try:
USHORT = USHORT
except NameError:
# Not available in older python versions
USHORT = c_ushort
DokanVersion.restype = ULONG
DokanVersion.argtypes = ()
if DokanVersion() < 392: # ths is release 0.5.3
raise ImportError("Dokan DLL is too old")
MAX_PATH = 260
class FILETIME(Structure):
_fields_ = [
("dwLowDateTime", DWORD),
("dwHighDateTime", DWORD),
]
class WIN32_FIND_DATAW(Structure):
_fields_ = [
("dwFileAttributes", DWORD),
("ftCreationTime", FILETIME),
("ftLastAccessTime", FILETIME),
("ftLastWriteTime", FILETIME),
("nFileSizeHigh", DWORD),
("nFileSizeLow", DWORD),
("dwReserved0", DWORD),
("dwReserved1", DWORD),
("cFileName", WCHAR * MAX_PATH),
("cAlternateFileName", WCHAR * 14),
]
class BY_HANDLE_FILE_INFORMATION(Structure):
_fields_ = [
('dwFileAttributes', DWORD),
('ftCreationTime', FILETIME),
('ftLastAccessTime', FILETIME),
('ftLastWriteTime', FILETIME),
('dwVolumeSerialNumber', DWORD),
('nFileSizeHigh', DWORD),
('nFileSizeLow', DWORD),
('nNumberOfLinks', DWORD),
('nFileIndexHigh', DWORD),
('nFileIndexLow', DWORD),
]
class DOKAN_OPTIONS(Structure):
_fields_ = [
("DriveLetter", WCHAR),
("ThreadCount", USHORT),
("Options", ULONG),
("GlobalContext", ULONG64),
]
class DOKAN_FILE_INFO(Structure):
_fields_ = [
("Context", ULONG64),
("DokanContext", ULONG64),
("DokanOptions", POINTER(DOKAN_OPTIONS)),
("ProcessId", ULONG),
("IsDirectory", UCHAR),
("DeleteOnClose", UCHAR),
("PagingIO", UCHAR),
("SyncronousIo", UCHAR),
("Nocache", UCHAR),
("WriteToEndOfFile", UCHAR),
]
PDOKAN_FILE_INFO = POINTER(DOKAN_FILE_INFO)
PFillFindData = WINFUNCTYPE(c_int,POINTER(WIN32_FIND_DATAW),PDOKAN_FILE_INFO)
class DOKAN_OPERATIONS(Structure):
_fields_ = [
("CreateFile", CFUNCTYPE(c_int,
LPCWSTR, # FileName
DWORD, # DesiredAccess
DWORD, # ShareMode
DWORD, # CreationDisposition
DWORD, # FlagsAndAttributes
PDOKAN_FILE_INFO)),
("OpenDirectory", CFUNCTYPE(c_int,
LPCWSTR, # FileName
PDOKAN_FILE_INFO)),
("CreateDirectory", CFUNCTYPE(c_int,
LPCWSTR, # FileName
PDOKAN_FILE_INFO)),
("Cleanup", CFUNCTYPE(c_int,
LPCWSTR, # FileName
PDOKAN_FILE_INFO)),
("CloseFile", CFUNCTYPE(c_int,
LPCWSTR, # FileName
PDOKAN_FILE_INFO)),
("ReadFile", CFUNCTYPE(c_int,
LPCWSTR, # FileName
POINTER(c_char), # Buffer
DWORD, # NumberOfBytesToRead
LPDWORD, # NumberOfBytesRead
LONGLONG, # Offset
PDOKAN_FILE_INFO)),
("WriteFile", CFUNCTYPE(c_int,
LPCWSTR, # FileName
POINTER(c_char), # Buffer
DWORD, # NumberOfBytesToWrite
LPDWORD, # NumberOfBytesWritten
LONGLONG, # Offset
PDOKAN_FILE_INFO)),
("FlushFileBuffers", CFUNCTYPE(c_int,
LPCWSTR, # FileName
PDOKAN_FILE_INFO)),
("GetFileInformation", CFUNCTYPE(c_int,
LPCWSTR, # FileName
POINTER(BY_HANDLE_FILE_INFORMATION), # Buffer
PDOKAN_FILE_INFO)),
("FindFiles", CFUNCTYPE(c_int,
LPCWSTR, # PathName
PFillFindData, # call this function with PWIN32_FIND_DATAW
PDOKAN_FILE_INFO)),
("FindFilesWithPattern", CFUNCTYPE(c_int,
LPCWSTR, # PathName
LPCWSTR, # SearchPattern
PFillFindData, #call this function with PWIN32_FIND_DATAW
PDOKAN_FILE_INFO)),
("SetFileAttributes", CFUNCTYPE(c_int,
LPCWSTR, # FileName
DWORD, # FileAttributes
PDOKAN_FILE_INFO)),
("SetFileTime", CFUNCTYPE(c_int,
LPCWSTR, # FileName
POINTER(FILETIME), # CreationTime
POINTER(FILETIME), # LastAccessTime
POINTER(FILETIME), # LastWriteTime
PDOKAN_FILE_INFO)),
("DeleteFile", CFUNCTYPE(c_int,
LPCWSTR, # FileName
PDOKAN_FILE_INFO)),
("DeleteDirectory", CFUNCTYPE(c_int,
LPCWSTR, # FileName
PDOKAN_FILE_INFO)),
("MoveFile", CFUNCTYPE(c_int,
LPCWSTR, # ExistingFileName
LPCWSTR, # NewFileName
BOOL, # ReplaceExisiting
PDOKAN_FILE_INFO)),
("SetEndOfFile", CFUNCTYPE(c_int,
LPCWSTR, # FileName
LONGLONG, # Length
PDOKAN_FILE_INFO)),
("SetAllocationSize", CFUNCTYPE(c_int,
LPCWSTR, # FileName
LONGLONG, # Length
PDOKAN_FILE_INFO)),
("LockFile", CFUNCTYPE(c_int,
LPCWSTR, # FileName
LONGLONG, # ByteOffset
LONGLONG, # Length
PDOKAN_FILE_INFO)),
("UnlockFile", CFUNCTYPE(c_int,
LPCWSTR, # FileName
LONGLONG, # ByteOffset
LONGLONG, # Length
PDOKAN_FILE_INFO)),
("GetDiskFreeSpaceEx", CFUNCTYPE(c_int,
PULONGLONG, # FreeBytesAvailable
PULONGLONG, # TotalNumberOfBytes
PULONGLONG, # TotalNumberOfFreeBytes
PDOKAN_FILE_INFO)),
("GetVolumeInformation", CFUNCTYPE(c_int,
POINTER(c_wchar), # VolumeNameBuffer
DWORD, # VolumeNameSize in num of chars
LPDWORD, # VolumeSerialNumber
LPDWORD, # MaximumComponentLength in num of chars
LPDWORD, # FileSystemFlags
POINTER(c_wchar), # FileSystemNameBuffer
DWORD, # FileSystemNameSize in num of chars
PDOKAN_FILE_INFO)),
("Unmount", CFUNCTYPE(c_int,
PDOKAN_FILE_INFO)),
]
DokanMain.restype = c_int
DokanMain.argtypes = (
POINTER(DOKAN_OPTIONS),
POINTER(DOKAN_OPERATIONS),
)
DokanUnmount = windll.Dokan.DokanUnmount
DokanUnmount.restype = BOOL
DokanUnmount.argtypes = (
WCHAR,
)
DokanIsNameInExpression = windll.Dokan.DokanIsNameInExpression
DokanIsNameInExpression.restype = BOOL
DokanIsNameInExpression.argtypes = (
LPCWSTR, # pattern
LPCWSTR, # name
BOOL, # ignore case
)
DokanDriverVersion = windll.Dokan.DokanDriverVersion
DokanDriverVersion.restype = ULONG
DokanDriverVersion.argtypes = (
)
DokanResetTimeout = windll.Dokan.DokanResetTimeout
DokanResetTimeout.restype = BOOL
DokanResetTimeout.argtypes = (
ULONG, #timeout
PDOKAN_FILE_INFO, # file info pointer
)
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