public static void TrySendMessage(Socket serverSocket, SMB1Command request)
{
SMB1Message message = new SMB1Message();
message.Commands.Add(request);
TrySendMessage(serverSocket, message);
}
internal void TrySendMessage(SMB1Command request, ushort treeID)
{
SMB1Message message = new SMB1Message();
message.Header.UnicodeFlag = m_unicode;
message.Header.ExtendedSecurityFlag = m_forceExtendedSecurity;
message.Header.Flags2 |= HeaderFlags2.LongNamesAllowed | HeaderFlags2.LongNameUsed | HeaderFlags2.NTStatusCode;
message.Header.UID = m_userID;
message.Header.TID = treeID;
message.Commands.Add(request);
TrySendMessage(m_clientSocket, message);
}
internal void SendMessage(SMB1Command request, ushort treeID)
{
SMB1Message message = new SMB1Message
{
Header = new SMB1Header
{
UnicodeFlag = m_unicode,
ExtendedSecurityFlag = m_forceExtendedSecurity,
Flags2 = HeaderFlags2.LongNamesAllowed | HeaderFlags2.LongNameUsed | HeaderFlags2.NTStatusCode,
UID = m_userID,
TID = treeID,
}
};
message.Commands.Add(request);
SendMessage(m_clientSocket !, message);
}
/// <summary>
/// May return an empty list
/// </summary>
private List <SMB1Command> ProcessSMB1Command(SMB1Header header, SMB1Command command, ref ConnectionState state)
{
if (state.Dialect == SMBDialect.NotSet)
{
if (command is NegotiateRequest)
{
NegotiateRequest request = (NegotiateRequest)command;
if (request.Dialects.Contains(SMBServer.NTLanManagerDialect))
{
state = new SMB1ConnectionState(state);
state.Dialect = SMBDialect.NTLM012;
m_connectionManager.AddConnection(state);
if (EnableExtendedSecurity && header.ExtendedSecurityFlag)
{
return(NegotiateHelper.GetNegotiateResponseExtended(request, m_serverGuid));
}
else
{
return(NegotiateHelper.GetNegotiateResponse(header, request, m_securityProvider, state));
}
}
else
{
return(new NegotiateResponseNotSupported());
}
}
else
{
// [MS-CIFS] An SMB_COM_NEGOTIATE exchange MUST be completed before any other SMB messages are sent to the server
header.Status = NTStatus.STATUS_INVALID_SMB;
return(new ErrorResponse(command.CommandName));
}
}
else if (command is NegotiateRequest)
{
// There MUST be only one SMB_COM_NEGOTIATE exchange per SMB connection.
// Subsequent SMB_COM_NEGOTIATE requests received by the server MUST be rejected with error responses.
header.Status = NTStatus.STATUS_INVALID_SMB;
return(new ErrorResponse(command.CommandName));
}
else
{
return(ProcessSMB1Command(header, command, (SMB1ConnectionState)state));
}
}
internal void TrySendMessage(SMB1Command request)
{
TrySendMessage(request, 0);
}
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));
}
private void TrySendMessage(SMB1Command request)
{
m_client.TrySendMessage(request, m_treeID);
}
private void SendMessage(SMB1Command request) => SendMessage(request, 0);
