static NTSTATUS DOKAN_CALLBACK FuseSetAllocationSize(
LPCWSTR FileName, LONGLONG ByteOffset, PDOKAN_FILE_INFO DokanFileInfo) {
impl_fuse_context *impl = the_impl;
if (impl->debug())
FPRINTF(stderr, "SetAllocationSize: %ls, %lld\n", FileName, ByteOffset);
impl_chain_guard guard(impl, DokanFileInfo->ProcessId);
BY_HANDLE_FILE_INFORMATION byHandleFileInfo;
ZeroMemory(&byHandleFileInfo, sizeof(BY_HANDLE_FILE_INFORMATION));
NTSTATUS ret = errno_to_ntstatus_error(
impl->get_file_information(FileName, &byHandleFileInfo, DokanFileInfo));
LARGE_INTEGER fileSize;
fileSize.LowPart = byHandleFileInfo.nFileSizeLow;
fileSize.HighPart = byHandleFileInfo.nFileSizeHigh;
if (ret != 0) {
return ret;
}
else if (ByteOffset < fileSize.QuadPart) {
/* https://msdn.microsoft.com/en-us/library/windows/hardware/ff540232(v=vs.85).aspx
* The end-of-file position must always be less than or equal to the
* allocation size. If the allocation size is set to a value that is
* less than the end - of - file position, the end - of - file position
* is automatically adjusted to match the allocation size.*/
return errno_to_ntstatus_error(
impl->set_end_of_file(FileName, ByteOffset, DokanFileInfo));
}
else {
return 0;
}
}
static NTSTATUS DOKAN_CALLBACK FuseUnmount(PDOKAN_FILE_INFO DokanFileInfo)
{
impl_fuse_context *impl=the_impl;
if (impl->debug()) FWPRINTF(stderr, L"Unmount\n");
impl_chain_guard guard(impl,DokanFileInfo->ProcessId);
return errno_to_ntstatus_error(impl->unmount(DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK FuseDeleteFile(LPCWSTR FileName,
PDOKAN_FILE_INFO DokanFileInfo) {
impl_fuse_context *impl = the_impl;
if (impl->debug())
FWPRINTF(stderr, L"DeleteFile %s\n", FileName);
impl_chain_guard guard(impl, DokanFileInfo->ProcessId);
return errno_to_ntstatus_error(impl->delete_file(FileName, DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK
FuseFlushFileBuffers(LPCWSTR FileName, PDOKAN_FILE_INFO DokanFileInfo) {
impl_fuse_context *impl = the_impl;
if (impl->debug())
FPRINTF(stderr, "FlushFileBuffers: %ls\n", FileName);
impl_chain_guard guard(impl, DokanFileInfo->ProcessId);
return errno_to_ntstatus_error(
impl->flush_file_buffers(FileName, DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK FuseSetEndOfFile(
LPCWSTR FileName, LONGLONG ByteOffset, PDOKAN_FILE_INFO DokanFileInfo) {
impl_fuse_context *impl = the_impl;
if (impl->debug())
FWPRINTF(stderr, L"SetEndOfFile %s, %I64d\n", FileName, ByteOffset);
impl_chain_guard guard(impl, DokanFileInfo->ProcessId);
return errno_to_ntstatus_error(
impl->set_end_of_file(FileName, ByteOffset, DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK FuseSetFileAttributes(
LPCWSTR FileName, DWORD FileAttributes, PDOKAN_FILE_INFO DokanFileInfo) {
impl_fuse_context *impl = the_impl;
if (impl->debug())
FWPRINTF(stderr, L"SetFileAttributes %s\n", FileName);
impl_chain_guard guard(impl, DokanFileInfo->ProcessId);
return errno_to_ntstatus_error(
impl->set_file_attributes(FileName, FileAttributes, DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK FuseGetDiskFreeSpace(PULONGLONG FreeBytesAvailable,
PULONGLONG TotalNumberOfBytes, PULONGLONG TotalNumberOfFreeBytes,
PDOKAN_FILE_INFO DokanFileInfo)
{
impl_fuse_context *impl=the_impl;
if (impl->debug()) FWPRINTF(stderr, L"GetDiskFreeSpace\n");
impl_chain_guard guard(impl,DokanFileInfo->ProcessId);
return errno_to_ntstatus_error(impl->get_disk_free_space(FreeBytesAvailable,TotalNumberOfBytes,
TotalNumberOfFreeBytes, DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK FuseGetFileInformation(
LPCWSTR FileName, LPBY_HANDLE_FILE_INFORMATION HandleFileInformation,
PDOKAN_FILE_INFO DokanFileInfo) {
impl_fuse_context *impl = the_impl;
if (impl->debug())
FWPRINTF(stderr, L"GetFileInfo : %s\n", FileName);
impl_chain_guard guard(impl, DokanFileInfo->ProcessId);
return errno_to_ntstatus_error(impl->get_file_information(
FileName, HandleFileInformation, DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK FuseUnlockFile(LPCWSTR FileName,
LONGLONG ByteOffset,
LONGLONG Length,
PDOKAN_FILE_INFO DokanFileInfo) {
impl_fuse_context *impl = the_impl;
if (impl->debug())
FWPRINTF(stderr, L"UnlockFile %s\n", FileName);
impl_chain_guard guard(impl, DokanFileInfo->ProcessId);
return errno_to_ntstatus_error(
impl->unlock_file(FileName, ByteOffset, Length, DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK FuseFindFiles(
LPCWSTR FileName,
PFillFindData FillFindData, // function pointer
PDOKAN_FILE_INFO DokanFileInfo)
{
impl_fuse_context *impl=the_impl;
if (impl->debug()) FWPRINTF(stderr, L"FindFiles :%s\n", FileName);
impl_chain_guard guard(impl,DokanFileInfo->ProcessId);
return errno_to_ntstatus_error(impl->find_files(FileName,FillFindData,
DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK
FuseMoveFile(LPCWSTR FileName, // existing file name
LPCWSTR NewFileName, BOOL ReplaceIfExisting,
PDOKAN_FILE_INFO DokanFileInfo) {
impl_fuse_context *impl = the_impl;
if (impl->debug())
FWPRINTF(stderr, L"MoveFile %s -> %s\n\n", FileName, NewFileName);
impl_chain_guard guard(impl, DokanFileInfo->ProcessId);
return errno_to_ntstatus_error(
impl->move_file(FileName, NewFileName, ReplaceIfExisting, DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK FuseSetFileTime(LPCWSTR FileName,
CONST FILETIME *CreationTime,
CONST FILETIME *LastAccessTime,
CONST FILETIME *LastWriteTime,
PDOKAN_FILE_INFO DokanFileInfo) {
impl_fuse_context *impl = the_impl;
if (impl->debug())
FWPRINTF(stderr, L"SetFileTime %s\n", FileName);
impl_chain_guard guard(impl, DokanFileInfo->ProcessId);
return errno_to_ntstatus_error(impl->set_file_time(
FileName, CreationTime, LastAccessTime, LastWriteTime, DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK FuseReadFile(LPCWSTR FileName, LPVOID Buffer,
DWORD BufferLength,
LPDWORD ReadLength, LONGLONG Offset,
PDOKAN_FILE_INFO DokanFileInfo) {
impl_fuse_context *impl = the_impl;
if (impl->debug())
FWPRINTF(stderr, L"ReadFile : %s from %I64d len %u\n", FileName,
(__int64)Offset, (unsigned)BufferLength);
impl_chain_guard guard(impl, DokanFileInfo->ProcessId);
return errno_to_ntstatus_error(impl->read_file(
FileName, Buffer, BufferLength, ReadLength, Offset, DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK FuseCreateFile(
LPCWSTR FileName,
PDOKAN_IO_SECURITY_CONTEXT SecurityContext,
ACCESS_MASK DesiredAccess,
ULONG FileAttributes,
ULONG ShareAccess,
ULONG CreateDisposition,
ULONG CreateOptions,
PDOKAN_FILE_INFO DokanFileInfo)
{
impl_fuse_context *impl = the_impl;
if (impl->debug()) {
FWPRINTF(stderr, L"CreateFile : %s\n", FileName);
DebugConstantBit("\tDesiredAccess", DesiredAccess, cAccessMode);
DebugConstantBit("\tShareAccess", ShareAccess, cShareMode);
DebugConstant("\tDisposition", CreateDisposition, cDisposition);
FWPRINTF(stderr, L"\tAttributes: %u (0x%x)\n", FileAttributes, FileAttributes);
FWPRINTF(stderr, L"\tOptions: %u (0x%x)\n", CreateOptions, CreateOptions);
fflush(stderr);
}
impl_chain_guard guard(impl,DokanFileInfo->ProcessId);
if((CreateOptions & FILE_DIRECTORY_FILE) == FILE_DIRECTORY_FILE) {
if(CreateDisposition == FILE_CREATE || CreateDisposition == FILE_OPEN_IF) {
return errno_to_ntstatus_error(impl->create_directory(FileName, DokanFileInfo));
}
else if(CreateDisposition == FILE_OPEN) {
return errno_to_ntstatus_error(impl->open_directory(FileName, DokanFileInfo));
}
}
return -win_error(impl->create_file(FileName, CreateDisposition, ShareAccess, DesiredAccess, FileAttributes,
DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK FuseWriteFile(LPCWSTR FileName, LPCVOID Buffer,
DWORD NumberOfBytesToWrite,
LPDWORD NumberOfBytesWritten,
LONGLONG Offset,
PDOKAN_FILE_INFO DokanFileInfo) {
impl_fuse_context *impl = the_impl;
if (impl->debug())
FWPRINTF(stderr, L"WriteFile : %s, offset %I64d, length %lu\n", FileName,
Offset, NumberOfBytesToWrite);
impl_chain_guard guard(impl, DokanFileInfo->ProcessId);
return errno_to_ntstatus_error(
impl->write_file(FileName, Buffer, NumberOfBytesToWrite,
NumberOfBytesWritten, Offset, DokanFileInfo));
}
static NTSTATUS DOKAN_CALLBACK
GetVolumeInformation(LPWSTR VolumeNameBuffer, DWORD VolumeNameSize,
LPDWORD VolumeSerialNumber, LPDWORD MaximumComponentLength,
LPDWORD FileSystemFlags, LPWSTR FileSystemNameBuffer,
DWORD FileSystemNameSize, PDOKAN_FILE_INFO DokanFileInfo) {
impl_fuse_context *impl = the_impl;
if (impl->debug())
FWPRINTF(stderr, L"GetVolumeInformation\n");
impl_chain_guard guard(impl, DokanFileInfo->ProcessId);
*VolumeSerialNumber = 0;
*MaximumComponentLength = 255;
return errno_to_ntstatus_error(impl->get_volume_information(
VolumeNameBuffer, VolumeNameSize, FileSystemNameBuffer,
FileSystemNameSize, DokanFileInfo, FileSystemFlags));
}
static NTSTATUS DOKAN_CALLBACK
FuseGetFileSecurity(LPCWSTR FileName, PSECURITY_INFORMATION SecurityInformation,
PSECURITY_DESCRIPTOR SecurityDescriptor, ULONG BufferLength,
PULONG LengthNeeded, PDOKAN_FILE_INFO DokanFileInfo) {
impl_fuse_context *impl = the_impl;
if (impl->debug())
FPRINTF(stderr, "GetFileSecurity: " PRIxDWORD "\n", *SecurityInformation);
BY_HANDLE_FILE_INFORMATION byHandleFileInfo;
ZeroMemory(&byHandleFileInfo, sizeof(BY_HANDLE_FILE_INFORMATION));
int ret;
{
impl_chain_guard guard(impl, DokanFileInfo->ProcessId);
ret =
impl->get_file_information(FileName, &byHandleFileInfo, DokanFileInfo);
}
if (0 != ret) {
return errno_to_ntstatus_error(ret);
}
if (byHandleFileInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
// We handle directories for the Explorer's
// context menu. (New Folder, ...)
// Authenticated users rights
PSECURITY_DESCRIPTOR SecurityDescriptorTmp = nullptr;
ULONG Size = 0;
if (!ConvertStringSecurityDescriptorToSecurityDescriptor(
"D:PAI(A;OICI;FA;;;AU)", SDDL_REVISION_1, &SecurityDescriptorTmp,
&Size)) {
return STATUS_NOT_IMPLEMENTED;
}
LPTSTR pStringBuffer = nullptr;
if (!ConvertSecurityDescriptorToStringSecurityDescriptor(
SecurityDescriptorTmp, SDDL_REVISION_1, *SecurityInformation,
&pStringBuffer, nullptr)) {
return STATUS_NOT_IMPLEMENTED;
}
LocalFree(SecurityDescriptorTmp);
SecurityDescriptorTmp = nullptr;
Size = 0;
if (!ConvertStringSecurityDescriptorToSecurityDescriptor(
pStringBuffer, SDDL_REVISION_1, &SecurityDescriptorTmp, &Size)) {
return STATUS_NOT_IMPLEMENTED;
}
if (Size > BufferLength) {
*LengthNeeded = Size;
return STATUS_BUFFER_OVERFLOW;
}
memcpy(SecurityDescriptor, SecurityDescriptorTmp, Size);
*LengthNeeded = Size;
if (pStringBuffer != nullptr)
LocalFree(pStringBuffer);
if (SecurityDescriptorTmp != nullptr)
LocalFree(SecurityDescriptorTmp);
return STATUS_SUCCESS;
}
return STATUS_NOT_IMPLEMENTED;
}
