internal static Transaction2SetFileInformationResponse GetSubcommandResponse(SMB1Header header, Transaction2SetFileInformationRequest subcommand, ISMBShare share, SMB1ConnectionState state)
{
SMB1Session session = state.GetSession(header.UID);
OpenFileObject openFile = session.GetOpenFileObject(subcommand.FID);
if (openFile == null)
{
header.Status = NTStatus.STATUS_INVALID_HANDLE;
return(null);
}
if (share is FileSystemShare)
{
if (!((FileSystemShare)share).HasWriteAccess(session.SecurityContext, openFile.Path))
{
state.LogToServer(Severity.Verbose, "SetFileInformation on '{0}{1}' failed. User '{2}' was denied access.", share.Name, openFile.Path, session.UserName);
header.Status = NTStatus.STATUS_ACCESS_DENIED;
return(null);
}
}
SetInformation information;
try
{
information = SetInformation.GetSetInformation(subcommand.InformationBytes, subcommand.InformationLevel);
}
catch (UnsupportedInformationLevelException)
{
state.LogToServer(Severity.Verbose, "SetFileInformation on '{0}{1}' failed. Information level: {2}, NTStatus: STATUS_OS2_INVALID_LEVEL", share.Name, openFile.Path, subcommand.InformationLevel);
header.Status = NTStatus.STATUS_OS2_INVALID_LEVEL;
return(null);
}
catch (Exception)
{
state.LogToServer(Severity.Verbose, "SetFileInformation on '{0}{1}' failed. Information level: {2}, NTStatus: STATUS_INVALID_PARAMETER", share.Name, openFile.Path, subcommand.InformationLevel);
header.Status = NTStatus.STATUS_INVALID_PARAMETER;
return(null);
}
NTStatus status = SMB1FileStoreHelper.SetFileInformation(share.FileStore, openFile.Handle, information);
if (status != NTStatus.STATUS_SUCCESS)
{
state.LogToServer(Severity.Verbose, "SetFileInformation on '{0}{1}' failed. Information level: {2}, NTStatus: {3}", share.Name, openFile.Path, subcommand.InformationLevel, status);
header.Status = status;
return(null);
}
state.LogToServer(Severity.Information, "SetFileInformation on '{0}{1}' succeeded. Information level: {2}", share.Name, openFile.Path, subcommand.InformationLevel);
Transaction2SetFileInformationResponse response = new Transaction2SetFileInformationResponse();
return(response);
}
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();
}
}
}
