public SMB1FileStore TreeConnect(string shareName, ServiceName serviceName, out NTStatus status) { if (!m_isConnected || !m_isLoggedIn) { throw new InvalidOperationException("A login session must be successfully established before connecting to a share"); } TreeConnectAndXRequest request = new TreeConnectAndXRequest(); request.Path = shareName; request.Service = serviceName; TrySendMessage(request); SMB1Message reply = WaitForMessage(CommandName.SMB_COM_TREE_CONNECT_ANDX); if (reply != null) { status = reply.Header.Status; if (reply.Header.Status == NTStatus.STATUS_SUCCESS && reply.Commands[0] is TreeConnectAndXResponse) { TreeConnectAndXResponse response = (TreeConnectAndXResponse)reply.Commands[0]; return(new SMB1FileStore(this, reply.Header.TID)); } } else { status = NTStatus.STATUS_INVALID_SMB; } return(null); }
internal static SMB1Command GetTreeConnectResponse(SMB1Header header, TreeConnectAndXRequest request, SMB1ConnectionState state, NamedPipeShare services, SMBShareCollection shares) { SMB1Session session = state.GetSession(header.UID); bool isExtended = (request.Flags & TreeConnectFlags.ExtendedResponse) > 0; string shareName = ServerPathUtils.GetShareName(request.Path); ISMBShare share; ServiceName serviceName; OptionalSupportFlags supportFlags; if (String.Equals(shareName, NamedPipeShare.NamedPipeShareName, StringComparison.InvariantCultureIgnoreCase)) { share = services; serviceName = ServiceName.NamedPipe; supportFlags = OptionalSupportFlags.SMB_SUPPORT_SEARCH_BITS | OptionalSupportFlags.SMB_CSC_NO_CACHING; } else { share = shares.GetShareFromName(shareName); serviceName = ServiceName.DiskShare; supportFlags = OptionalSupportFlags.SMB_SUPPORT_SEARCH_BITS | OptionalSupportFlags.SMB_CSC_CACHE_MANUAL_REINT; if (share == null) { header.Status = NTStatus.STATUS_OBJECT_PATH_NOT_FOUND; return(new ErrorResponse(request.CommandName)); } if (!((FileSystemShare)share).HasReadAccess(session.SecurityContext, @"\")) { state.LogToServer(Severity.Verbose, "Tree Connect to '{0}' failed. User '{1}' was denied access.", share.Name, session.UserName); header.Status = NTStatus.STATUS_ACCESS_DENIED; return(new ErrorResponse(request.CommandName)); } } ushort?treeID = session.AddConnectedTree(share); if (!treeID.HasValue) { header.Status = NTStatus.STATUS_INSUFF_SERVER_RESOURCES; return(new ErrorResponse(request.CommandName)); } state.LogToServer(Severity.Information, "Tree Connect: User '{0}' connected to '{1}'", session.UserName, share.Name); header.TID = treeID.Value; if (isExtended) { return(CreateTreeConnectResponseExtended(serviceName, supportFlags)); } else { return(CreateTreeConnectResponse(serviceName, supportFlags)); } }
internal static SMBCommand GetTreeConnectResponse(SMBHeader header, TreeConnectAndXRequest request, StateObject state, ShareCollection shares) { bool isExtended = (request.Flags & TreeConnectFlags.ExtendedResponse) > 0; string relativePath = ServerPathUtils.GetRelativeServerPath(request.Path); if (String.Equals(relativePath, "\\IPC$", StringComparison.InvariantCultureIgnoreCase)) { header.TID = state.AddConnectedTree(relativePath); if (isExtended) { return(CreateTreeConnectResponseExtended(ServiceName.NamedPipe)); } else { return(CreateTreeConnectResponse(ServiceName.NamedPipe)); } } else { FileSystemShare share = shares.GetShareFromRelativePath(relativePath); if (share == null) { header.Status = NTStatus.STATUS_OBJECT_PATH_NOT_FOUND; return(new ErrorResponse(CommandName.SMB_COM_TREE_CONNECT_ANDX)); } else { string userName = state.GetConnectedUserName(header.UID); if (!share.HasReadAccess(userName)) { header.Status = NTStatus.STATUS_ACCESS_DENIED; return(new ErrorResponse(CommandName.SMB_COM_TREE_CONNECT_ANDX)); } else { header.TID = state.AddConnectedTree(relativePath); if (isExtended) { return(CreateTreeConnectResponseExtended(ServiceName.DiskShare)); } else { return(CreateTreeConnectResponse(ServiceName.DiskShare)); } } } } }
private SMB1FileStore TreeConnect(string shareName, ServiceName serviceName) { if (!IsConnected || !m_isLoggedIn) { throw new InvalidOperationException("A login session must be successfully established before connecting to a share"); } TreeConnectAndXRequest request = new TreeConnectAndXRequest { Path = shareName, Service = serviceName }; SendMessage(request); SMB1Message reply = WaitForMessage(CommandName.SMB_COM_TREE_CONNECT_ANDX); reply.IsSuccessElseThrow(); return(new SMB1FileStore(this, reply.Header.TID)); }
private List <SMB1Command> ProcessSMB1Command(SMB1Header header, SMB1Command command, SMB1ConnectionState state) { if (command is SessionSetupAndXRequest) { SessionSetupAndXRequest request = (SessionSetupAndXRequest)command; state.MaxBufferSize = request.MaxBufferSize; return(SessionSetupHelper.GetSessionSetupResponse(header, request, m_securityProvider, state)); } else if (command is SessionSetupAndXRequestExtended) { SessionSetupAndXRequestExtended request = (SessionSetupAndXRequestExtended)command; state.MaxBufferSize = request.MaxBufferSize; return(SessionSetupHelper.GetSessionSetupResponseExtended(header, request, m_securityProvider, state)); } else if (command is EchoRequest) { return(ServerResponseHelper.GetEchoResponse((EchoRequest)command)); } else { SMB1Session session = state.GetSession(header.UID); if (session == null) { header.Status = NTStatus.STATUS_USER_SESSION_DELETED; return(new ErrorResponse(command.CommandName)); } if (command is TreeConnectAndXRequest) { TreeConnectAndXRequest request = (TreeConnectAndXRequest)command; return(TreeConnectHelper.GetTreeConnectResponse(header, request, state, m_services, m_shares)); } else if (command is LogoffAndXRequest) { state.LogToServer(Severity.Information, "Logoff: User '{0}' logged off.", session.UserName); m_securityProvider.DeleteSecurityContext(ref session.SecurityContext.AuthenticationContext); state.RemoveSession(header.UID); return(new LogoffAndXResponse()); } else { ISMBShare share = session.GetConnectedTree(header.TID); if (share == null) { header.Status = NTStatus.STATUS_SMB_BAD_TID; return(new ErrorResponse(command.CommandName)); } if (command is CreateDirectoryRequest) { CreateDirectoryRequest request = (CreateDirectoryRequest)command; return(FileStoreResponseHelper.GetCreateDirectoryResponse(header, request, share, state)); } else if (command is DeleteDirectoryRequest) { DeleteDirectoryRequest request = (DeleteDirectoryRequest)command; return(FileStoreResponseHelper.GetDeleteDirectoryResponse(header, request, share, state)); } else if (command is CloseRequest) { CloseRequest request = (CloseRequest)command; return(ServerResponseHelper.GetCloseResponse(header, request, share, state)); } else if (command is FlushRequest) { return(new FlushResponse()); } else if (command is DeleteRequest) { DeleteRequest request = (DeleteRequest)command; return(FileStoreResponseHelper.GetDeleteResponse(header, request, share, state)); } else if (command is RenameRequest) { RenameRequest request = (RenameRequest)command; return(FileStoreResponseHelper.GetRenameResponse(header, request, share, state)); } else if (command is QueryInformationRequest) { QueryInformationRequest request = (QueryInformationRequest)command; return(FileStoreResponseHelper.GetQueryInformationResponse(header, request, share, state)); } else if (command is SetInformationRequest) { SetInformationRequest request = (SetInformationRequest)command; return(FileStoreResponseHelper.GetSetInformationResponse(header, request, share, state)); } else if (command is ReadRequest) { ReadRequest request = (ReadRequest)command; return(ReadWriteResponseHelper.GetReadResponse(header, request, share, state)); } else if (command is WriteRequest) { WriteRequest request = (WriteRequest)command; return(ReadWriteResponseHelper.GetWriteResponse(header, request, share, state)); } else if (command is CheckDirectoryRequest) { CheckDirectoryRequest request = (CheckDirectoryRequest)command; return(FileStoreResponseHelper.GetCheckDirectoryResponse(header, request, share, state)); } else if (command is WriteRawRequest) { // [MS-CIFS] 3.3.5.26 - Receiving an SMB_COM_WRITE_RAW Request: // the server MUST verify that the Server.Capabilities include CAP_RAW_MODE, // If an error is detected [..] the Write Raw operation MUST fail and // the server MUST return a Final Server Response [..] with the Count field set to zero. return(new WriteRawFinalResponse()); } else if (command is SetInformation2Request) { SetInformation2Request request = (SetInformation2Request)command; return(FileStoreResponseHelper.GetSetInformation2Response(header, request, share, state)); } else if (command is LockingAndXRequest) { header.Status = NTStatus.STATUS_ACCESS_DENIED; return(new ErrorResponse(command.CommandName)); } else if (command is OpenAndXRequest) { OpenAndXRequest request = (OpenAndXRequest)command; return(OpenAndXHelper.GetOpenAndXResponse(header, request, share, state)); } else if (command is ReadAndXRequest) { ReadAndXRequest request = (ReadAndXRequest)command; return(ReadWriteResponseHelper.GetReadResponse(header, request, share, state)); } else if (command is WriteAndXRequest) { WriteAndXRequest request = (WriteAndXRequest)command; return(ReadWriteResponseHelper.GetWriteResponse(header, request, share, state)); } else if (command is FindClose2Request) { return(ServerResponseHelper.GetFindClose2Request(header, (FindClose2Request)command, state)); } else if (command is TreeDisconnectRequest) { TreeDisconnectRequest request = (TreeDisconnectRequest)command; return(TreeConnectHelper.GetTreeDisconnectResponse(header, request, share, state)); } else if (command is TransactionRequest) // Both TransactionRequest and Transaction2Request { TransactionRequest request = (TransactionRequest)command; return(TransactionHelper.GetTransactionResponse(header, request, share, state)); } else if (command is TransactionSecondaryRequest) // Both TransactionSecondaryRequest and Transaction2SecondaryRequest { TransactionSecondaryRequest request = (TransactionSecondaryRequest)command; return(TransactionHelper.GetTransactionResponse(header, request, share, state)); } else if (command is NTTransactRequest) { NTTransactRequest request = (NTTransactRequest)command; return(NTTransactHelper.GetNTTransactResponse(header, request, share, state)); } else if (command is NTTransactSecondaryRequest) { NTTransactSecondaryRequest request = (NTTransactSecondaryRequest)command; return(NTTransactHelper.GetNTTransactResponse(header, request, share, state)); } else if (command is NTCreateAndXRequest) { NTCreateAndXRequest request = (NTCreateAndXRequest)command; return(NTCreateHelper.GetNTCreateResponse(header, request, share, state)); } } } header.Status = NTStatus.STATUS_SMB_BAD_COMMAND; return(new ErrorResponse(command.CommandName)); }
/// <summary> /// May return null /// </summary> public SMBCommand ProcessCommand(SMBHeader header, SMBCommand command, StateObject state, List <SMBCommand> sendQueue) { if (command is NegotiateRequest) { NegotiateRequest request = (NegotiateRequest)command; if (request.Dialects.Contains(SMBServer.NTLanManagerDialect)) { if (EnableExtendedSecurity && header.ExtendedSecurityFlag) { return(NegotiateHelper.GetNegotiateResponseExtended(request, m_serverGuid)); } else { return(new NegotiateResponseNotSupported()); } } else { return(new NegotiateResponseNotSupported()); } } else if (command is SessionSetupAndXRequest) { SessionSetupAndXRequest request = (SessionSetupAndXRequest)command; state.MaxBufferSize = request.MaxBufferSize; //this probably won't work return(NegotiateHelper.GetSessionSetupResponse(header, request, state)); } else if (command is SessionSetupAndXRequestExtended) { SessionSetupAndXRequestExtended request = (SessionSetupAndXRequestExtended)command; state.MaxBufferSize = request.MaxBufferSize; return(NegotiateHelper.GetSessionSetupResponseExtended(header, request, state)); } else if (command is EchoRequest) { return(ServerResponseHelper.GetEchoResponse((EchoRequest)command, sendQueue)); } else if (state.IsAuthenticated(header.UID)) { if (command is TreeConnectAndXRequest) { TreeConnectAndXRequest request = (TreeConnectAndXRequest)command; return(TreeConnectHelper.GetTreeConnectResponse(header, request, state, m_shares)); } else if (command is LogoffAndXRequest) { return(new LogoffAndXResponse()); } else if (state.IsTreeConnected(header.TID)) { string rootPath = state.GetConnectedTreePath(header.TID); object share; if (state.IsIPC(header.TID)) { share = m_services; } else { share = m_shares.GetShareFromRelativePath(rootPath); } if (command is CreateDirectoryRequest) { if (!(share is FileSystemShare)) { header.Status = NTStatus.STATUS_SMB_BAD_COMMAND; return(new ErrorResponse(command.CommandName)); } CreateDirectoryRequest request = (CreateDirectoryRequest)command; return(FileSystemResponseHelper.GetCreateDirectoryResponse(header, request, (FileSystemShare)share, state)); } else if (command is DeleteDirectoryRequest) { if (!(share is FileSystemShare)) { header.Status = NTStatus.STATUS_SMB_BAD_COMMAND; return(new ErrorResponse(command.CommandName)); } DeleteDirectoryRequest request = (DeleteDirectoryRequest)command; return(FileSystemResponseHelper.GetDeleteDirectoryResponse(header, request, (FileSystemShare)share, state)); } else if (command is CloseRequest) { CloseRequest request = (CloseRequest)command; return(ServerResponseHelper.GetCloseResponse(header, request, state)); } else if (command is FlushRequest) { return(new FlushResponse()); } else if (command is DeleteRequest) { if (!(share is FileSystemShare)) { header.Status = NTStatus.STATUS_SMB_BAD_COMMAND; return(new ErrorResponse(command.CommandName)); } DeleteRequest request = (DeleteRequest)command; return(FileSystemResponseHelper.GetDeleteResponse(header, request, (FileSystemShare)share, state)); } else if (command is RenameRequest) { if (!(share is FileSystemShare)) { header.Status = NTStatus.STATUS_SMB_BAD_COMMAND; return(new ErrorResponse(command.CommandName)); } RenameRequest request = (RenameRequest)command; return(FileSystemResponseHelper.GetRenameResponse(header, request, (FileSystemShare)share, state)); } else if (command is QueryInformationRequest) { if (!(share is FileSystemShare)) { header.Status = NTStatus.STATUS_SMB_BAD_COMMAND; return(new ErrorResponse(command.CommandName)); } QueryInformationRequest request = (QueryInformationRequest)command; return(FileSystemResponseHelper.GetQueryInformationResponse(header, request, (FileSystemShare)share)); } else if (command is SetInformationRequest) { if (!(share is FileSystemShare)) { header.Status = NTStatus.STATUS_SMB_BAD_COMMAND; return(new ErrorResponse(command.CommandName)); } SetInformationRequest request = (SetInformationRequest)command; return(FileSystemResponseHelper.GetSetInformationResponse(header, request, (FileSystemShare)share, state)); } else if (command is ReadRequest) { ReadRequest request = (ReadRequest)command; return(ReadWriteResponseHelper.GetReadResponse(header, request, share, state)); } else if (command is WriteRequest) { string userName = state.GetConnectedUserName(header.UID); if (share is FileSystemShare && !((FileSystemShare)share).HasWriteAccess(userName)) { header.Status = NTStatus.STATUS_ACCESS_DENIED; return(new ErrorResponse(command.CommandName)); } WriteRequest request = (WriteRequest)command; return(ReadWriteResponseHelper.GetWriteResponse(header, request, share, state)); } else if (command is CheckDirectoryRequest) { if (!(share is FileSystemShare)) { header.Status = NTStatus.STATUS_SMB_BAD_COMMAND; return(new ErrorResponse(command.CommandName)); } CheckDirectoryRequest request = (CheckDirectoryRequest)command; return(FileSystemResponseHelper.GetCheckDirectoryResponse(header, request, (FileSystemShare)share)); } else if (command is WriteRawRequest) { // [MS-CIFS] 3.3.5.26 - Receiving an SMB_COM_WRITE_RAW Request: // the server MUST verify that the Server.Capabilities include CAP_RAW_MODE, // If an error is detected [..] the Write Raw operation MUST fail and // the server MUST return a Final Server Response [..] with the Count field set to zero. return(new WriteRawFinalResponse()); } else if (command is SetInformation2Request) { if (!(share is FileSystemShare)) { header.Status = NTStatus.STATUS_SMB_BAD_COMMAND; return(new ErrorResponse(command.CommandName)); } SetInformation2Request request = (SetInformation2Request)command; return(FileSystemResponseHelper.GetSetInformation2Response(header, request, (FileSystemShare)share, state)); } else if (command is LockingAndXRequest) { header.Status = NTStatus.STATUS_ACCESS_DENIED; return(new ErrorResponse(CommandName.SMB_COM_LOCKING_ANDX)); } else if (command is OpenAndXRequest) { OpenAndXRequest request = (OpenAndXRequest)command; return(OpenAndXHelper.GetOpenAndXResponse(header, request, share, state)); } else if (command is ReadAndXRequest) { ReadAndXRequest request = (ReadAndXRequest)command; return(ReadWriteResponseHelper.GetReadResponse(header, request, share, state)); } else if (command is WriteAndXRequest) { string userName = state.GetConnectedUserName(header.UID); if (share is FileSystemShare && !((FileSystemShare)share).HasWriteAccess(userName)) { header.Status = NTStatus.STATUS_ACCESS_DENIED; return(new ErrorResponse(command.CommandName)); } WriteAndXRequest request = (WriteAndXRequest)command; return(ReadWriteResponseHelper.GetWriteResponse(header, request, share, state)); } else if (command is FindClose2Request) { return(ServerResponseHelper.GetFindClose2Request(header, (FindClose2Request)command, state)); } else if (command is TreeDisconnectRequest) { TreeDisconnectRequest request = (TreeDisconnectRequest)command; return(TreeConnectHelper.GetTreeDisconnectResponse(header, request, state)); } else if (command is TransactionRequest) // Both TransactionRequest and Transaction2Request { TransactionRequest request = (TransactionRequest)command; try { return(TransactionHelper.GetTransactionResponse(header, request, share, state, sendQueue)); } catch (UnsupportedInformationLevelException) { header.Status = NTStatus.STATUS_INVALID_PARAMETER; return(new ErrorResponse(command.CommandName)); } } else if (command is TransactionSecondaryRequest) // Both TransactionSecondaryRequest and Transaction2SecondaryRequest { TransactionSecondaryRequest request = (TransactionSecondaryRequest)command; try { return(TransactionHelper.GetTransactionResponse(header, request, share, state, sendQueue)); } catch (UnsupportedInformationLevelException) { header.Status = NTStatus.STATUS_INVALID_PARAMETER; return(new ErrorResponse(command.CommandName)); } } else if (command is NTTransactRequest) { NTTransactRequest request = (NTTransactRequest)command; return(NTTransactHelper.GetNTTransactResponse(header, request, share, state, sendQueue)); } else if (command is NTTransactSecondaryRequest) { NTTransactSecondaryRequest request = (NTTransactSecondaryRequest)command; return(NTTransactHelper.GetNTTransactResponse(header, request, share, state, sendQueue)); } else if (command is NTCreateAndXRequest) { NTCreateAndXRequest request = (NTCreateAndXRequest)command; return(NTCreateHelper.GetNTCreateResponse(header, request, share, state)); } } else { header.Status = NTStatus.STATUS_SMB_BAD_TID; return(new ErrorResponse(command.CommandName)); } } header.Status = NTStatus.STATUS_SMB_BAD_COMMAND; return(new ErrorResponse(command.CommandName)); }