Esempio n. 1
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        /// <summary>
        /// find the transaction2 packet.
        /// </summary>
        /// <param name="command">the command of transaction2 packet.</param>
        /// <returns>the target transaction2 packet</returns>
        private static SmbPacket FindTheTrans2Packet(Trans2SubCommand command)
        {
            SmbPacket smbPacket = null;

            switch ((Trans2SubCommand)command)
            {
            case Trans2SubCommand.TRANS2_FIND_FIRST2:
                smbPacket = new SmbTrans2FindFirst2RequestPacket();
                break;

            case Trans2SubCommand.TRANS2_FIND_NEXT2:
                smbPacket = new SmbTrans2FindNext2RequestPacket();
                break;

            case Trans2SubCommand.TRANS2_QUERY_FS_INFORMATION:
                smbPacket = new SmbTrans2QueryFsInformationRequestPacket();
                break;

            case Trans2SubCommand.TRANS2_SET_FS_INFORMATION:
                smbPacket = new SmbTrans2SetFsInformationRequestPacket();
                break;

            case Trans2SubCommand.TRANS2_QUERY_PATH_INFORMATION:
                smbPacket = new SmbTrans2QueryPathInformationRequestPacket();
                break;

            case Trans2SubCommand.TRANS2_SET_PATH_INFORMATION:
                smbPacket = new SmbTrans2SetPathInformationRequestPacket();
                break;

            case Trans2SubCommand.TRANS2_QUERY_FILE_INFORMATION:
                smbPacket = new SmbTrans2QueryFileInformationRequestPacket();
                break;

            case Trans2SubCommand.TRANS2_SET_FILE_INFORMATION:
                smbPacket = new SmbTrans2SetFileInformationRequestPacket();
                break;

            case Trans2SubCommand.TRANS2_GET_DFS_REFERRAL:
                smbPacket = new SmbTrans2GetDfsReferralRequestPacket();
                break;

            default:
                break;
            }
            return(smbPacket);
        }
        private SmbPacket CreateTransaction2ResponsePacket(SmbPacket request, SmbHeader smbHeader, Channel channel)
        {
            SmbPacket smbPacket = null;

            if (smbHeader.Status == 0 && channel.Peek <byte>(0) == 0 && channel.Peek <ushort>(1) == 0)
            {
                return(smbPacket);
            }

            SmbTransaction2RequestPacket transaction2Request = request as SmbTransaction2RequestPacket;

            if (transaction2Request == null)
            {
                return(smbPacket);
            }

            // if no setup command. break
            if (transaction2Request.SmbParameters.SetupCount == 0)
            {
                return(smbPacket);
            }

            // decode packet using the setup command
            switch ((Trans2SubCommand)transaction2Request.SmbParameters.Setup[0])
            {
            case Trans2SubCommand.TRANS2_QUERY_FILE_INFORMATION:
                SmbTrans2QueryFileInformationRequestPacket queryFileRequest =
                    transaction2Request as SmbTrans2QueryFileInformationRequestPacket;
                if (queryFileRequest != null)
                {
                    smbPacket = new SmbTrans2QueryFileInformationResponsePacket(
                        queryFileRequest.Trans2Parameters.InformationLevel);
                }
                break;

            case Trans2SubCommand.TRANS2_QUERY_PATH_INFORMATION:
                SmbTrans2QueryPathInformationRequestPacket queryPathRequest =
                    transaction2Request as SmbTrans2QueryPathInformationRequestPacket;
                if (queryPathRequest != null)
                {
                    smbPacket = new SmbTrans2QueryPathInformationResponsePacket(
                        queryPathRequest.Trans2Parameters.InformationLevel);
                }
                break;

            case Trans2SubCommand.TRANS2_SET_FILE_INFORMATION:
                smbPacket = new SmbTrans2SetFileInformationResponsePacket();
                break;

            case Trans2SubCommand.TRANS2_SET_PATH_INFORMATION:
                smbPacket = new SmbTrans2SetPathInformationResponsePacket();
                break;

            case Trans2SubCommand.TRANS2_QUERY_FS_INFORMATION:
                SmbTrans2QueryFsInformationRequestPacket queryFsRequest =
                    transaction2Request as SmbTrans2QueryFsInformationRequestPacket;
                if (queryFsRequest != null)
                {
                    smbPacket = new SmbTrans2QueryFsInformationResponsePacket(
                        queryFsRequest.Trans2Parameters.InformationLevel);
                }
                break;

            case Trans2SubCommand.TRANS2_SET_FS_INFORMATION:
                smbPacket = new SmbTrans2SetFsInformationResponsePacket();
                break;

            case Trans2SubCommand.TRANS2_FIND_FIRST2:
                SmbTrans2FindFirst2RequestPacket first2Request =
                    transaction2Request as SmbTrans2FindFirst2RequestPacket;
                if (first2Request != null)
                {
                    smbPacket = new SmbTrans2FindFirst2ResponsePacket(first2Request.Trans2Parameters.InformationLevel,
                                                                      (first2Request.Trans2Parameters.Flags & Trans2FindFlags.SMB_FIND_RETURN_RESUME_KEYS)
                                                                      == Trans2FindFlags.SMB_FIND_RETURN_RESUME_KEYS);
                }
                break;

            case Trans2SubCommand.TRANS2_FIND_NEXT2:
                SmbTrans2FindNext2RequestPacket next2Request =
                    transaction2Request as SmbTrans2FindNext2RequestPacket;
                if (next2Request != null)
                {
                    smbPacket = new SmbTrans2FindNext2ResponsePacket(next2Request.Trans2Parameters.InformationLevel,
                                                                     (next2Request.Trans2Parameters.Flags & Trans2FindFlags.SMB_FIND_RETURN_RESUME_KEYS)
                                                                     == Trans2FindFlags.SMB_FIND_RETURN_RESUME_KEYS);
                }
                break;

            case Trans2SubCommand.TRANS2_GET_DFS_REFERRAL:
                smbPacket = new SmbTrans2GetDfsReferralResponsePacket();
                break;

            default:
                break;
            }

            return(smbPacket);
        }