NTSTATUS
DokanSetDispositionInformation(
PEVENT_CONTEXT EventContext,
PDOKAN_FILE_INFO FileInfo,
PDOKAN_OPERATIONS DokanOperations)
{
PFILE_DISPOSITION_INFORMATION dispositionInfo =
(PFILE_DISPOSITION_INFORMATION)((PCHAR)EventContext + EventContext->Operation.SetFile.BufferOffset);
if (!DokanOperations->DeleteFile || !DokanOperations->DeleteDirectory)
return STATUS_NOT_IMPLEMENTED;
if (!dispositionInfo->DeleteFile) {
return STATUS_SUCCESS;
}
if (FileInfo->IsDirectory) {
return DokanOperations->DeleteDirectory(
EventContext->Operation.SetFile.FileName,
FileInfo);
} else {
return DokanOperations->DeleteFile(
EventContext->Operation.SetFile.FileName,
FileInfo);
}
}
NTSTATUS
DokanSetAllocationInformation(
PEVENT_CONTEXT EventContext,
PDOKAN_FILE_INFO FileInfo,
PDOKAN_OPERATIONS DokanOperations)
{
PFILE_ALLOCATION_INFORMATION allocInfo =
(PFILE_ALLOCATION_INFORMATION)((PCHAR)EventContext + EventContext->Operation.SetFile.BufferOffset);
// A file's allocation size and end-of-file position are independent of each other,
// with the following exception: 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.
if (DokanOperations->SetAllocationSize) {
return DokanOperations->SetAllocationSize(
EventContext->Operation.SetFile.FileName,
allocInfo->AllocationSize.QuadPart,
FileInfo);
}
// How can we check the current end-of-file position?
if (allocInfo->AllocationSize.QuadPart == 0) {
return DokanOperations->SetEndOfFile(
EventContext->Operation.SetFile.FileName,
allocInfo->AllocationSize.QuadPart,
FileInfo);
} else {
DbgPrint(" SetAllocationInformation %I64d, can't handle this parameter.\n",
allocInfo->AllocationSize.QuadPart);
}
return STATUS_SUCCESS;
}
NTSTATUS
DokanSetRenameInformation(
PEVENT_CONTEXT EventContext,
PDOKAN_FILE_INFO FileInfo,
PDOKAN_OPERATIONS DokanOperations)
{
PDOKAN_RENAME_INFORMATION renameInfo =
(PDOKAN_RENAME_INFORMATION)((PCHAR)EventContext + EventContext->Operation.SetFile.BufferOffset);
WCHAR newName[MAX_PATH];
ZeroMemory(newName, sizeof(newName));
if (renameInfo->FileName[0] != L'\\') {
ULONG pos;
for (pos = EventContext->Operation.SetFile.FileNameLength / sizeof(WCHAR);
pos != 0; --pos) {
if (EventContext->Operation.SetFile.FileName[pos] == '\\')
break;
}
RtlCopyMemory(newName, EventContext->Operation.SetFile.FileName, (pos + 1)*sizeof(WCHAR));
RtlCopyMemory((PCHAR)newName + (pos+1)*sizeof(WCHAR), renameInfo->FileName, renameInfo->FileNameLength);
} else {
RtlCopyMemory(newName, renameInfo->FileName, renameInfo->FileNameLength);
}
if (!DokanOperations->MoveFile)
return STATUS_NOT_IMPLEMENTED;
return DokanOperations->MoveFile(
EventContext->Operation.SetFile.FileName,
newName,
renameInfo->ReplaceIfExists,
FileInfo);
}
NTSTATUS
DokanFsFullSizeInformation(PEVENT_INFORMATION EventInfo,
PEVENT_CONTEXT EventContext,
PDOKAN_FILE_INFO FileInfo,
PDOKAN_OPERATIONS DokanOperations) {
ULONGLONG freeBytesAvailable = 0;
ULONGLONG totalBytes = 0;
ULONGLONG freeBytes = 0;
NTSTATUS status = STATUS_NOT_IMPLEMENTED;
ULONG allocationUnitSize = FileInfo->DokanOptions->AllocationUnitSize;
ULONG sectorSize = FileInfo->DokanOptions->SectorSize;
PFILE_FS_FULL_SIZE_INFORMATION sizeInfo =
(PFILE_FS_FULL_SIZE_INFORMATION)EventInfo->Buffer;
if (EventContext->Operation.Volume.BufferLength <
sizeof(FILE_FS_FULL_SIZE_INFORMATION)) {
return STATUS_BUFFER_OVERFLOW;
}
if (DokanOperations->GetDiskFreeSpace) {
status = DokanOperations->GetDiskFreeSpace(
&freeBytesAvailable, // FreeBytesAvailable
&totalBytes, // TotalNumberOfBytes
&freeBytes, // TotalNumberOfFreeBytes
FileInfo);
}
if (status == STATUS_NOT_IMPLEMENTED) {
status = DokanGetDiskFreeSpace(&freeBytesAvailable, // FreeBytesAvailable
&totalBytes, // TotalNumberOfBytes
&freeBytes, // TotalNumberOfFreeBytes
FileInfo);
}
if (status != STATUS_SUCCESS) {
return status;
}
sizeInfo->TotalAllocationUnits.QuadPart =
totalBytes / allocationUnitSize;
sizeInfo->ActualAvailableAllocationUnits.QuadPart =
freeBytes / allocationUnitSize;
sizeInfo->CallerAvailableAllocationUnits.QuadPart =
freeBytesAvailable / allocationUnitSize;
sizeInfo->SectorsPerAllocationUnit =
allocationUnitSize / sectorSize;
sizeInfo->BytesPerSector = sectorSize;
EventInfo->BufferLength = sizeof(FILE_FS_FULL_SIZE_INFORMATION);
return STATUS_SUCCESS;
}
NTSTATUS
DokanSetBasicInformation(
PEVENT_CONTEXT EventContext,
PDOKAN_FILE_INFO FileInfo,
PDOKAN_OPERATIONS DokanOperations)
{
FILETIME creation, lastAccess, lastWrite;
NTSTATUS status = STATUS_NOT_IMPLEMENTED;
PFILE_BASIC_INFORMATION basicInfo =
(PFILE_BASIC_INFORMATION)((PCHAR)EventContext + EventContext->Operation.SetFile.BufferOffset);
if (!DokanOperations->SetFileAttributes)
return STATUS_NOT_IMPLEMENTED;
if (!DokanOperations->SetFileTime)
return STATUS_NOT_IMPLEMENTED;
status = DokanOperations->SetFileAttributes(
EventContext->Operation.SetFile.FileName,
basicInfo->FileAttributes,
FileInfo);
if (status > 0)
return status;
creation.dwLowDateTime = basicInfo->CreationTime.LowPart;
creation.dwHighDateTime = basicInfo->CreationTime.HighPart;
lastAccess.dwLowDateTime = basicInfo->LastAccessTime.LowPart;
lastAccess.dwHighDateTime = basicInfo->LastAccessTime.HighPart;
lastWrite.dwLowDateTime = basicInfo->LastWriteTime.LowPart;
lastWrite.dwHighDateTime = basicInfo->LastWriteTime.HighPart;
return DokanOperations->SetFileTime(
EventContext->Operation.SetFile.FileName,
&creation,
&lastAccess,
&lastWrite,
FileInfo);
}
NTSTATUS
DokanSetValidDataLengthInformation(
PEVENT_CONTEXT EventContext,
PDOKAN_FILE_INFO FileInfo,
PDOKAN_OPERATIONS DokanOperations)
{
PFILE_VALID_DATA_LENGTH_INFORMATION validInfo =
(PFILE_VALID_DATA_LENGTH_INFORMATION)((PCHAR)EventContext + EventContext->Operation.SetFile.BufferOffset);
if (!DokanOperations->SetEndOfFile)
return STATUS_NOT_IMPLEMENTED;
return DokanOperations->SetEndOfFile(
EventContext->Operation.SetFile.FileName,
validInfo->ValidDataLength.QuadPart,
FileInfo);
}
NTSTATUS
DokanSetEndOfFileInformation(
PEVENT_CONTEXT EventContext,
PDOKAN_FILE_INFO FileInfo,
PDOKAN_OPERATIONS DokanOperations)
{
PFILE_END_OF_FILE_INFORMATION endInfo =
(PFILE_END_OF_FILE_INFORMATION)((PCHAR)EventContext + EventContext->Operation.SetFile.BufferOffset);
if (!DokanOperations->SetEndOfFile)
return STATUS_NOT_IMPLEMENTED;
return DokanOperations->SetEndOfFile(
EventContext->Operation.SetFile.FileName,
endInfo->EndOfFile.QuadPart,
FileInfo);
}
ULONG
DokanFsFullSizeInformation(
PEVENT_INFORMATION EventInfo,
PEVENT_CONTEXT EventContext,
PDOKAN_FILE_INFO FileInfo,
PDOKAN_OPERATIONS DokanOperations)
{
ULONGLONG freeBytesAvailable = 0;
ULONGLONG totalBytes = 0;
ULONGLONG freeBytes = 0;
int status = -1;
PFILE_FS_FULL_SIZE_INFORMATION sizeInfo = (PFILE_FS_FULL_SIZE_INFORMATION)EventInfo->Buffer;
if (!DokanOperations->GetDiskFreeSpace) {
DokanOperations->GetDiskFreeSpace = DokanGetDiskFreeSpace;
//return STATUS_NOT_IMPLEMENTED;
}
if (EventContext->Operation.Volume.BufferLength < sizeof(FILE_FS_FULL_SIZE_INFORMATION)) {
return STATUS_BUFFER_OVERFLOW;
}
status = DokanOperations->GetDiskFreeSpace(
&freeBytesAvailable, // FreeBytesAvailable
&totalBytes, // TotalNumberOfBytes
&freeBytes, // TotalNumberOfFreeBytes
FileInfo);
if (status < 0) {
return STATUS_INVALID_PARAMETER;
}
sizeInfo->TotalAllocationUnits.QuadPart = totalBytes / DOKAN_ALLOCATION_UNIT_SIZE;
sizeInfo->ActualAvailableAllocationUnits.QuadPart = freeBytes / DOKAN_ALLOCATION_UNIT_SIZE;
sizeInfo->CallerAvailableAllocationUnits.QuadPart = freeBytesAvailable / DOKAN_ALLOCATION_UNIT_SIZE;
sizeInfo->SectorsPerAllocationUnit = DOKAN_ALLOCATION_UNIT_SIZE / DOKAN_SECTOR_SIZE;
sizeInfo->BytesPerSector = DOKAN_SECTOR_SIZE;
EventInfo->BufferLength = sizeof(FILE_FS_FULL_SIZE_INFORMATION);
return STATUS_SUCCESS;
}
NTSTATUS
DokanFsVolumeInformation(PEVENT_INFORMATION EventInfo,
PEVENT_CONTEXT EventContext, PDOKAN_FILE_INFO FileInfo,
PDOKAN_OPERATIONS DokanOperations) {
WCHAR volumeName[MAX_PATH];
DWORD volumeSerial = 0;
DWORD maxComLength = 0;
DWORD fsFlags = 0;
WCHAR fsName[MAX_PATH];
ULONG remainingLength;
ULONG bytesToCopy;
NTSTATUS status = STATUS_NOT_IMPLEMENTED;
PFILE_FS_VOLUME_INFORMATION volumeInfo =
(PFILE_FS_VOLUME_INFORMATION)EventInfo->Buffer;
remainingLength = EventContext->Operation.Volume.BufferLength;
if (remainingLength < sizeof(FILE_FS_VOLUME_INFORMATION)) {
return STATUS_BUFFER_OVERFLOW;
}
RtlZeroMemory(volumeName, sizeof(volumeName));
RtlZeroMemory(fsName, sizeof(fsName));
if (DokanOperations->GetVolumeInformation) {
status = DokanOperations->GetVolumeInformation(
volumeName, // VolumeNameBuffer
sizeof(volumeName) / sizeof(WCHAR), // VolumeNameSize
&volumeSerial, // VolumeSerialNumber
&maxComLength, // MaximumComponentLength
&fsFlags, // FileSystemFlags
fsName, // FileSystemNameBuffer
sizeof(fsName) / sizeof(WCHAR), // FileSystemNameSize
FileInfo);
}
if (status == STATUS_NOT_IMPLEMENTED) {
status = DokanGetVolumeInformation(
volumeName, // VolumeNameBuffer
sizeof(volumeName) / sizeof(WCHAR), // VolumeNameSize
&volumeSerial, // VolumeSerialNumber
&maxComLength, // MaximumComponentLength
&fsFlags, // FileSystemFlags
fsName, // FileSystemNameBuffer
sizeof(fsName) / sizeof(WCHAR), // FileSystemNameSize
FileInfo);
}
if (status != STATUS_SUCCESS) {
return status;
}
volumeInfo->VolumeCreationTime.QuadPart = 0;
volumeInfo->VolumeSerialNumber = volumeSerial;
volumeInfo->SupportsObjects = FALSE;
remainingLength -= FIELD_OFFSET(FILE_FS_VOLUME_INFORMATION, VolumeLabel[0]);
bytesToCopy = (ULONG)wcslen(volumeName) * sizeof(WCHAR);
if (remainingLength < bytesToCopy) {
bytesToCopy = remainingLength;
}
volumeInfo->VolumeLabelLength = bytesToCopy;
RtlCopyMemory(volumeInfo->VolumeLabel, volumeName, bytesToCopy);
remainingLength -= bytesToCopy;
EventInfo->BufferLength =
EventContext->Operation.Volume.BufferLength - remainingLength;
return STATUS_SUCCESS;
}
ULONG
DokanFsAttributeInformation(
PEVENT_INFORMATION EventInfo,
PEVENT_CONTEXT EventContext,
PDOKAN_FILE_INFO FileInfo,
PDOKAN_OPERATIONS DokanOperations)
{
WCHAR volumeName[MAX_PATH];
DWORD volumeSerial;
DWORD maxComLength;
DWORD fsFlags;
WCHAR fsName[MAX_PATH];
ULONG remainingLength;
ULONG bytesToCopy;
int status = -1;
PFILE_FS_ATTRIBUTE_INFORMATION attrInfo =
(PFILE_FS_ATTRIBUTE_INFORMATION)EventInfo->Buffer;
if (!DokanOperations->GetVolumeInformation) {
DokanOperations->GetVolumeInformation = DokanGetVolumeInformation;
//return STATUS_NOT_IMPLEMENTED;
}
remainingLength = EventContext->Operation.Volume.BufferLength;
if (remainingLength < sizeof(FILE_FS_ATTRIBUTE_INFORMATION)) {
return STATUS_BUFFER_OVERFLOW;
}
RtlZeroMemory(volumeName, sizeof(volumeName));
RtlZeroMemory(fsName, sizeof(fsName));
status = DokanOperations->GetVolumeInformation(
volumeName, // VolumeNameBuffer
sizeof(volumeName) / sizeof(WCHAR), // VolumeNameSize
&volumeSerial, // VolumeSerialNumber
&maxComLength, // MaximumComponentLength
&fsFlags, // FileSystemFlags
fsName, // FileSystemNameBuffer
sizeof(fsName) / sizeof(WCHAR), // FileSystemNameSize
FileInfo);
if (status < 0) {
return STATUS_INVALID_PARAMETER;
}
attrInfo->FileSystemAttributes = fsFlags;
attrInfo->MaximumComponentNameLength = maxComLength;
remainingLength -= FIELD_OFFSET(FILE_FS_ATTRIBUTE_INFORMATION, FileSystemName[0]);
bytesToCopy = (ULONG)wcslen(fsName) * sizeof(WCHAR);
if (remainingLength < bytesToCopy) {
bytesToCopy = remainingLength;
}
attrInfo->FileSystemNameLength = bytesToCopy;
RtlCopyMemory(attrInfo->FileSystemName, fsName, bytesToCopy);
remainingLength -= bytesToCopy;
EventInfo->BufferLength = EventContext->Operation.Volume.BufferLength - remainingLength;
return STATUS_SUCCESS;
}
