internal static SMB2Command GetCreateResponse(CreateRequest request, ISMBShare share, SMB2ConnectionState state)
{
SMB2Session session = state.GetSession(request.Header.SessionID);
string path = request.Name;
if (!path.StartsWith(@"\"))
{
path = @"\" + path;
}
FileAccess createAccess = NTFileStoreHelper.ToCreateFileAccess(request.DesiredAccess, request.CreateDisposition);
if (share is FileSystemShare)
{
if (!((FileSystemShare)share).HasAccess(session.SecurityContext, path, createAccess))
{
state.LogToServer(Severity.Verbose, "Create: Opening '{0}{1}' failed. User '{2}' was denied access.", share.Name, path, session.UserName);
return(new ErrorResponse(request.CommandName, NTStatus.STATUS_ACCESS_DENIED));
}
}
object handle;
FileStatus fileStatus;
// GetFileInformation/FileNetworkOpenInformation requires FILE_READ_ATTRIBUTES
AccessMask desiredAccess = request.DesiredAccess | (AccessMask)FileAccessMask.FILE_READ_ATTRIBUTES;
NTStatus createStatus = share.FileStore.CreateFile(out handle, out fileStatus, path, desiredAccess, request.FileAttributes, request.ShareAccess, request.CreateDisposition, request.CreateOptions, session.SecurityContext);
if (createStatus != NTStatus.STATUS_SUCCESS)
{
state.LogToServer(Severity.Verbose, "Create: Opening '{0}{1}' failed. NTStatus: {2}.", share.Name, path, createStatus);
return(new ErrorResponse(request.CommandName, createStatus));
}
FileAccess fileAccess = NTFileStoreHelper.ToFileAccess(desiredAccess);
FileID? fileID = session.AddOpenFile(request.Header.TreeID, share.Name, path, handle, fileAccess);
if (fileID == null)
{
share.FileStore.CloseFile(handle);
state.LogToServer(Severity.Verbose, "Create: Opening '{0}{1}' failed. Too many open files.", share.Name, path);
return(new ErrorResponse(request.CommandName, NTStatus.STATUS_TOO_MANY_OPENED_FILES));
}
string fileAccessString = fileAccess.ToString().Replace(", ", "|");
string shareAccessString = request.ShareAccess.ToString().Replace(", ", "|");
state.LogToServer(Severity.Verbose, "Create: Opened '{0}{1}', FileAccess: {2}, ShareAccess: {3}. (SessionID: {4}, TreeID: {5}, FileId: {6})", share.Name, path, fileAccessString, shareAccessString, request.Header.SessionID, request.Header.TreeID, fileID.Value.Volatile);
if (share is NamedPipeShare)
{
return(CreateResponseForNamedPipe(fileID.Value, FileStatus.FILE_OPENED));
}
else
{
FileNetworkOpenInformation fileInfo = NTFileStoreHelper.GetNetworkOpenInformation(share.FileStore, handle);
CreateResponse response = CreateResponseFromFileSystemEntry(fileInfo, fileID.Value, fileStatus);
return(response);
}
}
internal static SMB2Command GetCreateResponse(CreateRequest request, ISMBShare share, SMB2ConnectionState state)
{
SMB2Session session = state.GetSession(request.Header.SessionID);
string path = request.Name;
if (!path.StartsWith(@"\"))
{
path = @"\" + path;
}
FileAccess createAccess = NTFileStoreHelper.ToCreateFileAccess(request.DesiredAccess, request.CreateDisposition);
if (share is FileSystemShare)
{
if (!((FileSystemShare)share).HasAccess(session.SecurityContext, path, createAccess))
{
state.LogToServer(Severity.Verbose, "Create: Opening '{0}{1}' failed. User '{2}' was denied access.", share.Name, path, session.UserName);
return(new ErrorResponse(request.CommandName, NTStatus.STATUS_ACCESS_DENIED));
}
}
object handle;
FileStatus fileStatus;
NTStatus createStatus = share.FileStore.CreateFile(out handle, out fileStatus, path, request.DesiredAccess, request.ShareAccess, request.CreateDisposition, request.CreateOptions, session.SecurityContext);
if (createStatus != NTStatus.STATUS_SUCCESS)
{
state.LogToServer(Severity.Verbose, "Create: Opening '{0}{1}' failed. NTStatus: '{2}'.", share.Name, path, createStatus);
return(new ErrorResponse(request.CommandName, createStatus));
}
state.LogToServer(Severity.Verbose, "Create: Opened '{0}{1}'.", share.Name, path);
FileID?fileID = session.AddOpenFile(request.Header.TreeID, path, handle);
if (fileID == null)
{
share.FileStore.CloseFile(handle);
return(new ErrorResponse(request.CommandName, NTStatus.STATUS_TOO_MANY_OPENED_FILES));
}
if (share is NamedPipeShare)
{
return(CreateResponseForNamedPipe(fileID.Value, FileStatus.FILE_OPENED));
}
else
{
FileNetworkOpenInformation fileInfo = NTFileStoreHelper.GetNetworkOpenInformation(share.FileStore, handle);
CreateResponse response = CreateResponseFromFileSystemEntry(fileInfo, fileID.Value, fileStatus);
if (request.RequestedOplockLevel == OplockLevel.Batch)
{
response.OplockLevel = OplockLevel.Batch;
}
return(response);
}
}