/// <summary> /// initialize packet from base packet. /// </summary> /// <param name = "packet">the base packet to initialize this packet. </param> public SmbTreeConnectAndxRequestPacket(Cifs.SmbTreeConnectAndxRequestPacket packet) : base(packet) { }
/// <summary> /// update the context with request packet /// </summary> /// <param name="connection">the connection of endpoint</param> /// <param name="packet">the packet to update the context</param> private void RequestPacketUpdateRoleContext(SmbServerConnection connection, SmbPacket packet) { connection.AddRequestPacket(packet); // update the message id connection.MessageId = packet.SmbHeader.Mid; // update the process id connection.ProcessId = (uint)(packet.SmbHeader.PidHigh << 16); connection.ProcessId += packet.SmbHeader.PidLow; // update the message sign sequence number if (packet.SmbHeader.SecurityFeatures != 0 && connection.GssApi != null && connection.GssApi.SessionKey != null) { if (packet.SmbHeader.Command == SmbCommand.SMB_COM_NT_CANCEL) { connection.ServerNextReceiveSequenceNumber++; } else { ServerSendSequenceNumberKey key = new ServerSendSequenceNumberKey(); key.PidHigh = packet.SmbHeader.PidHigh; key.PidLow = packet.SmbHeader.PidLow; key.Mid = packet.SmbHeader.Mid; connection.ServerSendSequenceNumber[key] = connection.ServerNextReceiveSequenceNumber + 1; connection.ServerNextReceiveSequenceNumber += 2; } } // process each special command switch (packet.SmbHeader.Command) { case SmbCommand.SMB_COM_NEGOTIATE: SmbNegotiateRequestPacket request = packet as SmbNegotiateRequestPacket; byte[] dialects = request.SmbData.Dialects; List <string> negotiateDialects = new List <string>(); for (int i = 0; i < dialects.Length; i++) { if (dialects[i] == 0x02) { continue; } string dialect = ""; for (; i < dialects.Length && dialects[i] != 0x00; i++) { dialect += (char)dialects[i]; } negotiateDialects.Add(dialect); } connection.NegotiatedDialects = negotiateDialects.ToArray(); break; case SmbCommand.SMB_COM_TREE_CONNECT_ANDX: // down-case the packet Cifs.SmbTreeConnectAndxRequestPacket treeconnect = packet as Cifs.SmbTreeConnectAndxRequestPacket; // get the specified session. SmbServerSession treeconnectSession = connection.GetSession((ushort)treeconnect.SmbHeader.Uid); if (treeconnectSession == null) { return; } // Calculate the one-way hash byte[] sessionKey = FileServiceUtils.ProtectSessionKey(treeconnectSession.SessionKey); // update the session key state. treeconnectSession.SessionKeyState = SessionKeyStateValue.Available; // if server does not support SMB_EXTENDED_SIGNATURES, return. if (SmbClientTreeConnect.TreeConnectAndxExtendedSignatures != (treeconnect.SmbParameters.Flags & SmbClientTreeConnect.TreeConnectAndxExtendedSignatures)) { return; } treeconnectSession.SessionKey = sessionKey; break; default: return; } return; }