/// <summary> /// Read data from server, start at the positon indicated by offset /// </summary> /// <param name="timeout">The pending time to get server's response</param> /// <param name="offset">From where it will read</param> /// <param name="length">The length of the data client wants to read</param> /// <param name="data">The read data</param> /// <returns> /// a uint value that specifies the status of response packet. /// </returns> /// <exception cref="System.InvalidOperationException">Thrown if there is any error occurred</exception> public override uint Read(TimeSpan timeout, ulong offset, uint length, out byte[] data) { this.internalTimeout = timeout; SmbReadAndxRequestPacket request = smbClient.CreateReadRequest(this.fid, (ushort)length, (uint)offset); if (this.isSignRequired) { request.Sign(this.NextSequenceNumber, this.sessionKey); } uint status = 0; SmbReadAndxResponsePacket response = this.SendAndExpectSmbPacket(request, internalTimeout, out status) as SmbReadAndxResponsePacket; data = ArrayUtility.SubArray <byte>(response.SmbData.Data, 0); return(SmbMessageUtils.CheckStatus(status)); }
/// <summary> /// Deep copy constructor. /// </summary> public SmbReadAndxRequestPacket(SmbReadAndxRequestPacket packet) : base(packet) { }
/// <summary> /// find the target packet. /// </summary> /// <param name="smbHeader">the header of smb packet</param> /// <param name="channel">the channel to access bytes</param> /// <returns>the target packet</returns> private static SmbPacket FindTheTargetPacket(SmbHeader smbHeader, Channel channel) { SmbPacket smbPacket = null; switch (smbHeader.Command) { case SmbCommand.SMB_COM_NEGOTIATE: smbPacket = new SmbNegotiateRequestPacket(); break; case SmbCommand.SMB_COM_SESSION_SETUP_ANDX: SmbHeader_Flags2_Values flags2 = (SmbHeader_Flags2_Values)smbHeader.Flags2; if ((flags2 & SmbHeader_Flags2_Values.SMB_FLAGS2_EXTENDED_SECURITY) == SmbHeader_Flags2_Values.SMB_FLAGS2_EXTENDED_SECURITY) { smbPacket = new Smb.SmbSessionSetupAndxRequestPacket(); } else { smbPacket = new Cifs.SmbSessionSetupAndxRequestPacket(); } break; case SmbCommand.SMB_COM_TREE_CONNECT_ANDX: smbPacket = new SmbTreeConnectAndxRequestPacket(); break; case SmbCommand.SMB_COM_NT_CREATE_ANDX: smbPacket = new SmbNtCreateAndxRequestPacket(); break; case SmbCommand.SMB_COM_OPEN_ANDX: smbPacket = new SmbOpenAndxRequestPacket(); break; case SmbCommand.SMB_COM_WRITE_ANDX: smbPacket = new SmbWriteAndxRequestPacket(); break; case SmbCommand.SMB_COM_READ_ANDX: smbPacket = new SmbReadAndxRequestPacket(); break; case SmbCommand.SMB_COM_CLOSE: smbPacket = new SmbCloseRequestPacket(); break; case SmbCommand.SMB_COM_TREE_DISCONNECT: smbPacket = new SmbTreeDisconnectRequestPacket(); break; case SmbCommand.SMB_COM_LOGOFF_ANDX: smbPacket = new SmbLogoffAndxRequestPacket(); break; case SmbCommand.SMB_COM_TRANSACTION: SMB_COM_TRANSACTION_Request_SMB_Parameters transaction = channel.Read <SMB_COM_TRANSACTION_Request_SMB_Parameters>(); if (transaction.SetupCount == 0) { smbPacket = new SmbTransRapRequestPacket(); } else { smbPacket = FindTheTransactionPacket( transaction.SetupCount, (TransSubCommand)transaction.Setup[0]); } break; case SmbCommand.SMB_COM_TRANSACTION2: SMB_COM_TRANSACTION2_Request_SMB_Parameters transaction2 = channel.Read <SMB_COM_TRANSACTION2_Request_SMB_Parameters>(); smbPacket = FindTheTrans2Packet((Trans2SubCommand)transaction2.Subcommand); break; case SmbCommand.SMB_COM_NT_TRANSACT: SMB_COM_NT_TRANSACT_Request_SMB_Parameters ntTransactoin = channel.Read <SMB_COM_NT_TRANSACT_Request_SMB_Parameters>(); smbPacket = FindTheNtTransPacket(ntTransactoin.Function, CifsMessageUtils.ToBytesArray <ushort>(ntTransactoin.Setup)); break; default: break; } return(smbPacket); }