/// <summary> /// Expect client to connect share "$IPC", tcp or netbios connect is not included /// </summary> /// <param name="timeout">timeout</param> /// <returns>The client endpoint</returns> public override FsEndpoint ExpectConnectIpcShare(TimeSpan timeout) { CifsServerPerConnection connection; SmbNegotiateRequestPacket negotiateRequest = this.cifsServer.ExpectPacket( timeout, out connection) as SmbNegotiateRequestPacket; //ushort uid = (ushort)Interlocked.Increment(ref nextUid); SmbNegotiateResponsePacket negotiateResponse = this.cifsServer.CreateNegotiateResponse(connection, negotiateRequest, SecurityModes.NONE); this.cifsServer.SendPacket(negotiateResponse, connection); SmbSessionSetupAndxRequestPacket sessionSetupRequest = this.cifsServer.ExpectPacket(timeout, out connection) as SmbSessionSetupAndxRequestPacket; SmbSessionSetupAndxResponsePacket sessionSetupResponse = this.cifsServer.CreateSessionSetupAndxResponse(connection, sessionSetupRequest, ActionValues.NONE, null); this.cifsServer.SendPacket(sessionSetupResponse, connection); SmbTreeConnectAndxRequestPacket treeConnectRequest = this.cifsServer.ExpectPacket(timeout, out connection) as SmbTreeConnectAndxRequestPacket; SmbTreeConnectAndxResponsePacket treeConnectResponse = this.cifsServer.CreateTreeConnectAndxResponse(connection, treeConnectRequest, OptionalSupport.NONE, IPC_SERVICE_NAME, null); this.cifsServer.SendPacket(treeConnectResponse, connection); return(this.fsEndpoints[connection.Identity]); }
/// <summary> /// Deep copy constructor. /// </summary> public SmbNegotiateRequestPacket(SmbNegotiateRequestPacket packet) : base(packet) { this.InitDefaultValue(); this.smbParameters.WordCount = packet.SmbParameters.WordCount; this.smbData.ByteCount = packet.SmbData.ByteCount; if (packet.smbData.Dialects != null) { this.smbData.Dialects = new byte[packet.smbData.Dialects.Length]; Array.Copy(packet.smbData.Dialects, this.smbData.Dialects, packet.smbData.Dialects.Length); } else { this.smbData.Dialects = new byte[0]; } }
/// <summary> /// to create a Negotiate request packet. /// </summary> /// <param name="messageId">This field SHOULD be the multiplex ID that is used to associate a response with a /// request.</param> /// <param name="flags">An 8-bit field of 1-bit flags describing various features in effect for the /// message</param> /// <param name="flags2">A 16-bit field of 1-bit flags that represent various features in effect for the /// message. Unspecified bits are reserved and MUST be zero.</param> /// <param name="dialects">This is a variable length list of dialect identifiers in order of preference from /// least to most preferred</param> /// <returns>a Negotiate request packet</returns> public SmbNegotiateRequestPacket CreateNegotiateRequest( ushort messageId, SmbFlags flags, SmbFlags2 flags2, SMB_Dialect[] dialects) { if (dialects == null) { dialects = new SMB_Dialect[0]; } SmbNegotiateRequestPacket packet = new SmbNegotiateRequestPacket(); packet.SmbHeader = CifsMessageUtils.CreateSmbHeader(SmbCommand.SMB_COM_NEGOTIATE, messageId, 0, 0, flags, flags2); SMB_COM_NEGOTIATE_Request_SMB_Parameters smbParameters = new SMB_COM_NEGOTIATE_Request_SMB_Parameters(); smbParameters.WordCount = 0; SMB_COM_NEGOTIATE_Request_SMB_Data smbData = new SMB_COM_NEGOTIATE_Request_SMB_Data(); List<byte> list = new List<byte>(); foreach (SMB_Dialect dialect in dialects) { list.Add(dialect.BufferFormat); list.AddRange(CifsMessageUtils.ToSmbStringBytes(dialect.DialectString, false)); } smbData.Dialects = list.ToArray(); smbData.ByteCount = (ushort)(smbData.Dialects.Length); packet.SmbParameters = smbParameters; packet.SmbData = smbData; return packet; }
public SmbNegotiateResponsePacket CreateNegotiateResponse( CifsServerPerConnection connection, SmbNegotiateRequestPacket request, SecurityModes securityMode) { SmbNegotiateResponsePacket response = new SmbNegotiateResponsePacket(); response.SmbHeader = CifsMessageUtils.CreateSmbHeader(connection, request); Stack<string> dialectStrings = new Stack<string>(); for (int offset = 0; offset < request.SmbData.Dialects.Length; offset++) { string dialectString = CifsMessageUtils.ToSmbString(request.SmbData.Dialects, offset, true); dialectStrings.Push(dialectString); offset += sizeof(byte) + dialectString.Length; } while(dialectStrings.Count > 0) { string dialectString = dialectStrings.Pop(); if(dialectString == CifsMessageUtils.DIALECT_NTLANMAN) { SMB_COM_NEGOTIATE_NtLanManagerResponse_SMB_Parameters smbParameters = response.SmbParameters; smbParameters.WordCount = (byte)((Marshal.SizeOf(response.SmbParameters) - sizeof(byte)) / 2); smbParameters.DialectIndex = (ushort)dialectStrings.Count; smbParameters.SecurityMode = securityMode; smbParameters.MaxMpxCount = (ushort)this.context.MaxMpxCount; smbParameters.MaxNumberVcs = (ushort)this.context.MaxNumberVcs; smbParameters.MaxBufferSize = (ushort)this.context.MaxBufferSize; smbParameters.MaxRawSize = (ushort)this.context.MaxRawSize; smbParameters.SessionKey = 0; smbParameters.Capabilities = this.context.Capabilities; FileTime fileTime = new FileTime(); fileTime.Time = (ulong)DateTime.Now.ToFileTime(); smbParameters.SystemTime = fileTime; smbParameters.ServerTimeZone = (short)TimeZone.CurrentTimeZone.GetUtcOffset(DateTime.Now).Minutes; smbParameters.ChallengeLength = (byte)connection.NTLMChallenge.Length; response.SmbParameters = smbParameters; SMB_COM_NEGOTIATE_NtLanManagerResponse_SMB_Data smbData = response.SmbData; smbData.Challenge = connection.NTLMChallenge; smbData.DomainName = CifsMessageUtils.ToSmbStringBytes(this.context.DomainName, true); smbData.ByteCount = (ushort)(smbData.Challenge.Length + smbData.DomainName.Length); response.SmbData = smbData; return response; } else if (dialectString == CifsMessageUtils.DIALECT_PCLAN || dialectString == CifsMessageUtils.DIALECT_PCNETWORK_PROGRAM) { SMB_COM_NEGOTIATE_NtLanManagerResponse_SMB_Parameters smbParameters = response.SmbParameters; smbParameters.WordCount = 0x1; smbParameters.DialectIndex = (ushort)dialectStrings.Count; response.SmbParameters = smbParameters; SMB_COM_NEGOTIATE_NtLanManagerResponse_SMB_Data smbData = response.SmbData; smbData.Challenge = connection.NTLMChallenge; smbData.DomainName = CifsMessageUtils.ToSmbStringBytes(this.context.DomainName, true); smbData.ByteCount = (ushort)(smbData.Challenge.Length + smbData.DomainName.Length); response.SmbData = smbData; return response; } } throw new NotSupportedException("None of these dialects is supported."); }