public static NTStatus SetFileInformation(INTFileStore fileStore, object handle, SetInformation information)
{
if (information is SetFileBasicInfo)
{
SetFileBasicInfo basicInfo = (SetFileBasicInfo)information;
FileBasicInformation fileBasicInfo = new FileBasicInformation();
fileBasicInfo.CreationTime = basicInfo.CreationTime;
fileBasicInfo.LastAccessTime = basicInfo.LastAccessTime;
fileBasicInfo.LastWriteTime = basicInfo.LastWriteTime;
fileBasicInfo.ChangeTime = basicInfo.LastChangeTime;
fileBasicInfo.FileAttributes = (FileAttributes)basicInfo.ExtFileAttributes;
fileBasicInfo.Reserved = basicInfo.Reserved;
return(fileStore.SetFileInformation(handle, fileBasicInfo));
}
else if (information is SetFileDispositionInfo)
{
FileDispositionInformation fileDispositionInfo = new FileDispositionInformation();
fileDispositionInfo.DeletePending = ((SetFileDispositionInfo)information).DeletePending;
return(fileStore.SetFileInformation(handle, fileDispositionInfo));
}
else if (information is SetFileAllocationInfo)
{
// This information level is used to set the file length in bytes.
// Note: the input will NOT be a multiple of the cluster size / bytes per sector.
FileAllocationInformation fileAllocationInfo = new FileAllocationInformation();
fileAllocationInfo.AllocationSize = ((SetFileAllocationInfo)information).AllocationSize;
return(fileStore.SetFileInformation(handle, fileAllocationInfo));
}
else if (information is SetFileEndOfFileInfo)
{
FileEndOfFileInformation fileEndOfFileInfo = new FileEndOfFileInformation();
fileEndOfFileInfo.EndOfFile = ((SetFileEndOfFileInfo)information).EndOfFile;
return(fileStore.SetFileInformation(handle, fileEndOfFileInfo));
}
else
{
return(NTStatus.STATUS_NOT_IMPLEMENTED);
}
}
internal static Transaction2SetFileInformationResponse GetSubcommandResponse(SMBHeader header, Transaction2SetFileInformationRequest subcommand, FileSystemShare share, StateObject state)
{
string openedFilePath = state.GetOpenedFilePath(subcommand.FID);
if (openedFilePath == null)
{
header.Status = NTStatus.STATUS_INVALID_HANDLE;
return(null);
}
Transaction2SetFileInformationResponse response = new Transaction2SetFileInformationResponse();
switch (subcommand.InformationLevel)
{
case SetInformationLevel.SMB_INFO_STANDARD:
{
return(response);
}
case SetInformationLevel.SMB_INFO_SET_EAS:
{
throw new NotImplementedException();
}
case SetInformationLevel.SMB_SET_FILE_BASIC_INFO:
{
string userName = state.GetConnectedUserName(header.UID);
if (!share.HasWriteAccess(userName))
{
header.Status = NTStatus.STATUS_ACCESS_DENIED;
return(null);
}
SetFileBasicInfo info = (SetFileBasicInfo)subcommand.SetInfo;
bool isHidden = (info.ExtFileAttributes & ExtendedFileAttributes.Hidden) > 0;
bool isReadonly = (info.ExtFileAttributes & ExtendedFileAttributes.Readonly) > 0;
bool isArchived = (info.ExtFileAttributes & ExtendedFileAttributes.Archive) > 0;
try
{
share.FileSystem.SetAttributes(openedFilePath, isHidden, isReadonly, isArchived);
}
catch (UnauthorizedAccessException)
{
header.Status = NTStatus.STATUS_ACCESS_DENIED;
return(null);
}
DateTime?creationTime = null;
DateTime?lastWriteDT = null;
DateTime?lastAccessTime = null;
if (info.CreationTime != SMBHelper.FileTimeNotSpecified)
{
creationTime = info.CreationTime;
}
if (info.LastWriteTime != SMBHelper.FileTimeNotSpecified)
{
lastWriteDT = info.LastWriteTime;
}
if (info.LastAccessTime != SMBHelper.FileTimeNotSpecified)
{
lastAccessTime = info.LastAccessTime;
}
try
{
share.FileSystem.SetDates(openedFilePath, creationTime, lastWriteDT, lastAccessTime);
}
catch (IOException ex)
{
ushort errorCode = IOExceptionHelper.GetWin32ErrorCode(ex);
if (errorCode == (ushort)Win32Error.ERROR_SHARING_VIOLATION)
{
// Returning STATUS_SHARING_VIOLATION is undocumented but apparently valid
header.Status = NTStatus.STATUS_SHARING_VIOLATION;
return(null);
}
else
{
header.Status = NTStatus.STATUS_DATA_ERROR;
return(null);
}
}
catch (UnauthorizedAccessException)
{
header.Status = NTStatus.STATUS_ACCESS_DENIED;
return(null);
}
return(response);
}
case SetInformationLevel.SMB_SET_FILE_DISPOSITION_INFO:
{
if (((SetFileDispositionInfo)subcommand.SetInfo).DeletePending)
{
// We're supposed to delete the file on close, but it's too late to report errors at this late stage
string userName = state.GetConnectedUserName(header.UID);
if (!share.HasWriteAccess(userName))
{
header.Status = NTStatus.STATUS_ACCESS_DENIED;
return(null);
}
try
{
share.FileSystem.Delete(openedFilePath);
}
catch (IOException)
{
header.Status = NTStatus.STATUS_FILE_LOCK_CONFLICT;
return(null);
}
catch (UnauthorizedAccessException)
{
header.Status = NTStatus.STATUS_ACCESS_DENIED;
return(null);
}
}
return(response);
}
case SetInformationLevel.SMB_SET_FILE_ALLOCATION_INFO:
{
// This subcommand is used to set the file length in bytes.
// Note: the input will NOT be a multiple of the cluster size / bytes per sector.
ulong allocationSize = ((SetFileAllocationInfo)subcommand.SetInfo).AllocationSize;
try
{
Stream stream = share.FileSystem.OpenFile(openedFilePath, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);
stream.SetLength((long)allocationSize);
stream.Close();
}
catch
{
}
return(response);
}
case SetInformationLevel.SMB_SET_FILE_END_OF_FILE_INFO:
{
ulong endOfFile = ((SetFileEndOfFileInfo)subcommand.SetInfo).EndOfFile;
try
{
Stream stream = share.FileSystem.OpenFile(openedFilePath, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);
stream.SetLength((long)endOfFile);
stream.Close();
}
catch
{
}
return(response);
}
default:
{
throw new InvalidRequestException();
}
}
}
