internal static void ProcessNTCancelRequest(SMB1Header header, NTCancelRequest request, ISMBShare share, SMB1ConnectionState state) { SMB1Session session = state.GetSession(header.UID); SMB1AsyncContext context = state.GetAsyncContext(header.UID, header.TID, header.PID, header.MID); if (context != null) { NTStatus status = share.FileStore.Cancel(context.IORequest); OpenFileObject openFile = session.GetOpenFileObject(context.FileID); if (openFile != null) { state.LogToServer(Severity.Information, "Cancel: Requested cancel on '{0}{1}', NTStatus: {2}. PID: {3}. MID: {4}.", share.Name, openFile.Path, status, context.PID, context.MID); } if (status == NTStatus.STATUS_SUCCESS || status == NTStatus.STATUS_CANCELLED) { state.RemoveAsyncContext(context); } } }
private static void OnNotifyChangeCompleted(NTStatus status, byte[] buffer, object context) { SMB1AsyncContext asyncContext = (SMB1AsyncContext)context; // Wait until the 'Monitoring started' will be written to the log lock (asyncContext) { SMB1ConnectionState connection = asyncContext.Connection; connection.RemoveAsyncContext(asyncContext); SMB1Session session = connection.GetSession(asyncContext.UID); if (session != null) { OpenFileObject openFile = session.GetOpenFileObject(asyncContext.FileID); if (openFile != null) { connection.LogToServer(Severity.Verbose, "NotifyChange: Monitoring of '{0}{1}' completed. NTStatus: {2}. PID: {3}. MID: {4}.", openFile.ShareName, openFile.Path, status, asyncContext.PID, asyncContext.MID); } SMB1Header header = new SMB1Header(); header.Command = CommandName.SMB_COM_NT_TRANSACT; header.Status = status; header.Flags = HeaderFlags.CaseInsensitive | HeaderFlags.CanonicalizedPaths | HeaderFlags.Reply; // [MS-CIFS] SMB_FLAGS2_LONG_NAMES SHOULD be set to 1 when the negotiated dialect is NT LANMAN. // [MS-CIFS] SMB_FLAGS2_UNICODE SHOULD be set to 1 when the negotiated dialect is NT LANMAN. // [MS-CIFS] The Windows NT Server implementation of NT_TRANSACT_NOTIFY_CHANGE always returns the names of changed files in Unicode format. header.Flags2 = HeaderFlags2.LongNamesAllowed | HeaderFlags2.NTStatusCode | HeaderFlags2.Unicode; header.UID = asyncContext.UID; header.TID = asyncContext.TID; header.PID = asyncContext.PID; header.MID = asyncContext.MID; if (status == NTStatus.STATUS_SUCCESS) { NTTransactNotifyChangeResponse notifyChangeResponse = new NTTransactNotifyChangeResponse(); notifyChangeResponse.FileNotifyInformationBytes = buffer; byte[] responseSetup = notifyChangeResponse.GetSetup(); byte[] responseParameters = notifyChangeResponse.GetParameters(false); byte[] responseData = notifyChangeResponse.GetData(); List <SMB1Command> responseList = NTTransactHelper.GetNTTransactResponse(responseSetup, responseParameters, responseData, asyncContext.Connection.MaxBufferSize); if (responseList.Count == 1) { SMB1Message reply = new SMB1Message(); reply.Header = header; reply.Commands.Add(responseList[0]); SMBServer.EnqueueMessage(asyncContext.Connection, reply); } else { // [MS-CIFS] In the event that the number of changes exceeds [..] the maximum size of the NT_Trans_Parameter block in // the response [..] the NT Trans subsystem MUST return an error response with a Status value of STATUS_NOTIFY_ENUM_DIR. header.Status = NTStatus.STATUS_NOTIFY_ENUM_DIR; ErrorResponse response = new ErrorResponse(CommandName.SMB_COM_NT_TRANSACT); SMB1Message reply = new SMB1Message(); reply.Header = header; reply.Commands.Add(response); SMBServer.EnqueueMessage(asyncContext.Connection, reply); } } else { // Windows Server 2008 SP1 Will use ErrorResponse to return any status other than STATUS_SUCCESS (including STATUS_CANCELLED and STATUS_DELETE_PENDING). // // [MS-CIFS] In the event that the number of changes exceeds the size of the change notify buffer [..] // the NT Trans subsystem MUST return an error response with a Status value of STATUS_NOTIFY_ENUM_DIR. ErrorResponse response = new ErrorResponse(CommandName.SMB_COM_NT_TRANSACT); SMB1Message reply = new SMB1Message(); reply.Header = header; reply.Commands.Add(response); SMBServer.EnqueueMessage(asyncContext.Connection, reply); } } } }