dokan.h

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/*
  Dokan : user-mode file system library for Windows

  Copyright (C) 2020 - 2023 Google, Inc.
  Copyright (C) 2015 - 2019 Adrien J. <liryna.stark@gmail.com> and Maxime C. <maxime@islog.com>
  Copyright (C) 2007 - 2011 Hiroki Asakawa <info@dokan-dev.net>

  http://dokan-dev.github.io

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 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 Lesser General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef DOKAN_H_
#define DOKAN_H_

#define WIN32_NO_STATUS
#include <windows.h>
#undef WIN32_NO_STATUS
#include <ntstatus.h>

#include "fileinfo.h"
#include "public.h"

#ifdef _EXPORTING

#define DOKANAPI __stdcall
#else

#define DOKANAPI __declspec(dllimport) __stdcall
#endif

#define DOKAN_CALLBACK __stdcall

#ifdef __cplusplus
extern "C" {
#endif

#define DOKAN_VERSION 210

#define DOKAN_MINIMUM_COMPATIBLE_VERSION 200

#define DOKAN_DRIVER_NAME L"dokan" DOKAN_MAJOR_API_VERSION L".sys"

#define DOKAN_NP_NAME L"Dokan" DOKAN_MAJOR_API_VERSION

#define DOKAN_OPTION_DEBUG 1

#define DOKAN_OPTION_STDERR (1 << 1)

#define DOKAN_OPTION_ALT_STREAM (1 << 2)

#define DOKAN_OPTION_WRITE_PROTECT (1 << 3)

#define DOKAN_OPTION_NETWORK (1 << 4)

#define DOKAN_OPTION_REMOVABLE (1 << 5)

#define DOKAN_OPTION_MOUNT_MANAGER (1 << 6)

#define DOKAN_OPTION_CURRENT_SESSION (1 << 7)

#define DOKAN_OPTION_FILELOCK_USER_MODE (1 << 8)

#define DOKAN_OPTION_CASE_SENSITIVE (1 << 9)

#define DOKAN_OPTION_ENABLE_UNMOUNT_NETWORK_DRIVE (1 << 10)

#define DOKAN_OPTION_DISPATCH_DRIVER_LOGS (1 << 11)

#define DOKAN_OPTION_ALLOW_IPC_BATCHING (1 << 12)

typedef VOID *DOKAN_HANDLE, **PDOKAN_HANDLE;

typedef struct _DOKAN_OPTIONS {
  USHORT Version;
  BOOLEAN SingleThread;
  ULONG Options;
  ULONG64 GlobalContext;
  LPCWSTR MountPoint;
  LPCWSTR UNCName;
  ULONG Timeout;
  ULONG AllocationUnitSize;
  ULONG SectorSize;
  ULONG VolumeSecurityDescriptorLength;
  CHAR VolumeSecurityDescriptor[VOLUME_SECURITY_DESCRIPTOR_MAX_SIZE];
} DOKAN_OPTIONS, *PDOKAN_OPTIONS;

typedef struct _DOKAN_FILE_INFO {
  ULONG64 Context;
  ULONG64 DokanContext;
  PDOKAN_OPTIONS DokanOptions;
  PVOID ProcessingContext;
  ULONG ProcessId;
  UCHAR IsDirectory;
  UCHAR DeleteOnClose;
  UCHAR PagingIo;
  UCHAR SynchronousIo;
  UCHAR Nocache;
  UCHAR WriteToEndOfFile;
} DOKAN_FILE_INFO, *PDOKAN_FILE_INFO;

#define DOKAN_EXCEPTION_NOT_INITIALIZED 0x0f0ff0ff
#define DOKAN_EXCEPTION_INITIALIZATION_FAILED 0x0fbadbad
#define DOKAN_EXCEPTION_SHUTDOWN_FAILED 0x0fbadf00

typedef int(WINAPI *PFillFindData)(PWIN32_FIND_DATAW, PDOKAN_FILE_INFO);

typedef BOOL(WINAPI *PFillFindStreamData)(PWIN32_FIND_STREAM_DATA, PVOID);

// clang-format off

typedef struct _DOKAN_OPERATIONS {
  NTSTATUS(DOKAN_CALLBACK *ZwCreateFile)(LPCWSTR FileName,
      PDOKAN_IO_SECURITY_CONTEXT SecurityContext,
      ACCESS_MASK DesiredAccess,
      ULONG FileAttributes,
      ULONG ShareAccess,
      ULONG CreateDisposition,
      ULONG CreateOptions,
      PDOKAN_FILE_INFO DokanFileInfo);

  void(DOKAN_CALLBACK *Cleanup)(LPCWSTR FileName,
                                PDOKAN_FILE_INFO DokanFileInfo);

  void(DOKAN_CALLBACK *CloseFile)(LPCWSTR FileName,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *ReadFile)(LPCWSTR FileName,
    LPVOID Buffer,
    DWORD BufferLength,
    LPDWORD ReadLength,
    LONGLONG Offset,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *WriteFile)(LPCWSTR FileName,
    LPCVOID Buffer,
    DWORD NumberOfBytesToWrite,
    LPDWORD NumberOfBytesWritten,
    LONGLONG Offset,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *FlushFileBuffers)(LPCWSTR FileName,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *GetFileInformation)(LPCWSTR FileName,
    LPBY_HANDLE_FILE_INFORMATION Buffer,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *FindFiles)(LPCWSTR FileName,
    PFillFindData FillFindData,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *FindFilesWithPattern)(LPCWSTR PathName,
    LPCWSTR SearchPattern,
    PFillFindData FillFindData,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *SetFileAttributes)(LPCWSTR FileName,
    DWORD FileAttributes,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *SetFileTime)(LPCWSTR FileName,
    CONST FILETIME *CreationTime,
    CONST FILETIME *LastAccessTime,
    CONST FILETIME *LastWriteTime,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *DeleteFile)(LPCWSTR FileName,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *DeleteDirectory)(LPCWSTR FileName,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *MoveFile)(LPCWSTR FileName,
    LPCWSTR NewFileName,
    BOOL ReplaceIfExisting,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *SetEndOfFile)(LPCWSTR FileName,
    LONGLONG ByteOffset,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *SetAllocationSize)(LPCWSTR FileName,
    LONGLONG AllocSize,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *LockFile)(LPCWSTR FileName,
    LONGLONG ByteOffset,
    LONGLONG Length,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *UnlockFile)(LPCWSTR FileName,
    LONGLONG ByteOffset,
    LONGLONG Length,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *GetDiskFreeSpace)(PULONGLONG FreeBytesAvailable,
    PULONGLONG TotalNumberOfBytes,
    PULONGLONG TotalNumberOfFreeBytes,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *GetVolumeInformation)(LPWSTR VolumeNameBuffer,
    DWORD VolumeNameSize,
    LPDWORD VolumeSerialNumber,
    LPDWORD MaximumComponentLength,
    LPDWORD FileSystemFlags,
    LPWSTR FileSystemNameBuffer,
    DWORD FileSystemNameSize,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *Mounted)(LPCWSTR MountPoint, PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *Unmounted)(PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *GetFileSecurity)(LPCWSTR FileName,
    PSECURITY_INFORMATION SecurityInformation,
    PSECURITY_DESCRIPTOR SecurityDescriptor,
    ULONG BufferLength,
    PULONG LengthNeeded,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *SetFileSecurity)(LPCWSTR FileName,
    PSECURITY_INFORMATION SecurityInformation,
    PSECURITY_DESCRIPTOR SecurityDescriptor,
    ULONG BufferLength,
    PDOKAN_FILE_INFO DokanFileInfo);

  NTSTATUS(DOKAN_CALLBACK *FindStreams)(LPCWSTR FileName,
    PFillFindStreamData FillFindStreamData,
    PVOID FindStreamContext,
    PDOKAN_FILE_INFO DokanFileInfo);

} DOKAN_OPERATIONS, *PDOKAN_OPERATIONS;

// clang-format on

#define DOKAN_SUCCESS 0

#define DOKAN_ERROR -1

#define DOKAN_DRIVE_LETTER_ERROR -2

#define DOKAN_DRIVER_INSTALL_ERROR -3

#define DOKAN_START_ERROR -4

#define DOKAN_MOUNT_ERROR -5

#define DOKAN_MOUNT_POINT_ERROR -6

#define DOKAN_VERSION_ERROR -7

VOID DOKANAPI DokanInit();

VOID DOKANAPI DokanShutdown();

int DOKANAPI DokanMain(PDOKAN_OPTIONS DokanOptions,
                       PDOKAN_OPERATIONS DokanOperations);

int DOKANAPI DokanCreateFileSystem(_In_ PDOKAN_OPTIONS DokanOptions,
                                   _In_ PDOKAN_OPERATIONS DokanOperations,
                                   _Out_ DOKAN_HANDLE *DokanInstance);

BOOL DOKANAPI DokanIsFileSystemRunning(_In_ DOKAN_HANDLE DokanInstance);

DWORD DOKANAPI DokanWaitForFileSystemClosed(_In_ DOKAN_HANDLE DokanInstance,
                                            _In_ DWORD dwMilliseconds);

BOOL DOKANAPI DokanRegisterWaitForFileSystemClosed(
    _In_ DOKAN_HANDLE DokanInstance, _Out_ PHANDLE WaitHandle,
    _In_ WAITORTIMERCALLBACKFUNC Callback, _In_ PVOID Context,
    ULONG dwMilliseconds);

BOOL DOKANAPI DokanUnregisterWaitForFileSystemClosed(_In_ HANDLE WaitHandle,
                                                     BOOL WaitForCallbacks);

VOID DOKANAPI DokanCloseHandle(_In_ DOKAN_HANDLE DokanInstance);

BOOL DOKANAPI DokanUnmount(WCHAR DriveLetter);

BOOL DOKANAPI DokanRemoveMountPoint(LPCWSTR MountPoint);

BOOL DOKANAPI DokanIsNameInExpression(LPCWSTR Expression, LPCWSTR Name,
                                      BOOL IgnoreCase);

ULONG DOKANAPI DokanVersion();

ULONG DOKANAPI DokanDriverVersion();

BOOL DOKANAPI DokanResetTimeout(ULONG Timeout, PDOKAN_FILE_INFO DokanFileInfo);

HANDLE DOKANAPI DokanOpenRequestorToken(PDOKAN_FILE_INFO DokanFileInfo);

PDOKAN_MOUNT_POINT_INFO DOKANAPI DokanGetMountPointList(BOOL uncOnly, PULONG nbRead);

VOID DOKANAPI DokanReleaseMountPointList(PDOKAN_MOUNT_POINT_INFO list);

VOID DOKANAPI DokanMapKernelToUserCreateFileFlags(
    ACCESS_MASK DesiredAccess, ULONG FileAttributes, ULONG CreateOptions,
    ULONG CreateDisposition, ACCESS_MASK *outDesiredAccess,
    DWORD *outFileAttributesAndFlags, DWORD *outCreationDisposition);

BOOL DOKANAPI DokanNotifyCreate(_In_ DOKAN_HANDLE DokanInstance,
                                _In_ LPCWSTR FilePath, _In_ BOOL IsDirectory);

BOOL DOKANAPI DokanNotifyDelete(_In_ DOKAN_HANDLE DokanInstance,
                                _In_ LPCWSTR FilePath, _In_ BOOL IsDirectory);

BOOL DOKANAPI DokanNotifyUpdate(_In_ DOKAN_HANDLE DokanInstance,
                                _In_ LPCWSTR FilePath);

BOOL DOKANAPI DokanNotifyXAttrUpdate(_In_ DOKAN_HANDLE DokanInstance,
                                     _In_ LPCWSTR FilePath);

BOOL DOKANAPI DokanNotifyRename(_In_ DOKAN_HANDLE DokanInstance,
                                _In_ LPCWSTR OldPath, _In_ LPCWSTR NewPath,
                                _In_ BOOL IsDirectory,
                                _In_ BOOL IsInSameDirectory);

NTSTATUS DOKANAPI DokanNtStatusFromWin32(DWORD Error);

#ifdef __cplusplus
}
#endif

#endif // DOKAN_H_