示例#1
0
        private void Send()
        {
            while (true)
            {
                string input = TXData.Take();
                if (input == "")
                {
                    continue;
                }
                var Timestamp = DateTimeOffset.Now.ToUnixTimeSeconds();
                var MD5Sum    = BitConverter.ToString(sha256Ctx.ComputeHash(System.Text.Encoding.Default.GetBytes(input + rand.Next(0, 65536).ToString()))).Replace("-", "");

                Stack <string> PiecedMsg = new Stack <string>();
                while (input.Length > 0)
                {
                    if (input.Length <= 5)
                    {
                        PiecedMsg.Push(input);
                        input = "";
                    }
                    else
                    {
                        var cutlen = rand.Next(0, input.Length);
                        PiecedMsg.Push(input.Substring(0, cutlen));
                        input = input.Substring(cutlen);
                    }
                }
                var PacketTotal = PiecedMsg.Count;

                while (PiecedMsg.Count > 0)
                {
                    IPAddress SrcIP, DstIP;
                    switch (rand.Next(0, 2))
                    {
                    case 0:
                        if (IPv6SrcList.Count != 0 && IPv6DstList.Count != 0)
                        {
                            DstIP = IPv6DstList[rand.Next(0, IPv6DstList.Count)];
                            SrcIP = IPv6SrcList[rand.Next(0, IPv6SrcList.Count)];
                        }
                        else
                        {
                            DstIP = IPv4DstList[rand.Next(0, IPv4DstList.Count)];
                            SrcIP = IPv4SrcList[rand.Next(0, IPv4SrcList.Count)];
                        }
                        break;

                    default:
                        if (IPv4SrcList.Count != 0 && IPv4DstList.Count != 0)
                        {
                            DstIP = IPv4DstList[rand.Next(0, IPv4DstList.Count)];
                            SrcIP = IPv4SrcList[rand.Next(0, IPv4SrcList.Count)];
                        }
                        else
                        {
                            DstIP = IPv6DstList[rand.Next(0, IPv6DstList.Count)];
                            SrcIP = IPv6SrcList[rand.Next(0, IPv6SrcList.Count)];
                        }
                        break;
                    }
                    var TXProtocolPacket = new ProtocolPacket {
                        PacketTimestamp = Timestamp, PacketTotal = PacketTotal, PacketMD5Sum = MD5Sum, PacketCount = PiecedMsg.Count, SrcIP = SrcIP.ToString(), DstIP = DstIP.ToString()
                    };
                    TXProtocolPacket.PiecedMsg = PiecedMsg.Pop();
                    var    udpPacket = new PacketDotNet.UdpPacket((ushort)rand.Next(1, 65536), (ushort)rand.Next(1, 65536));
                    long   nonceTime = (DateTimeOffset.Now.ToUnixTimeSeconds() / 300) * 300;
                    byte[] nonce     = sha256Ctx.ComputeHash(System.Text.Encoding.Default.GetBytes(nonceTime.ToString())).Take(8).ToArray();
                    var    NSecKey   = Key.Import(AeadAlgorithm.ChaCha20Poly1305, key, KeyBlobFormat.RawSymmetricKey);
                    var    NSecNonce = new Nonce(nonce, 4);
                    udpPacket.PayloadData = AeadAlgorithm.ChaCha20Poly1305.Encrypt(NSecKey, NSecNonce, null, Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(TXProtocolPacket)));
                    if (DstIP.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
                    {
                        var ipv4Packet = new PacketDotNet.IPv4Packet(SrcIP, DstIP);
                        ipv4Packet.PayloadPacket = udpPacket;
                        udpPacket.UpdateCalculatedValues();
                        udpPacket.UpdateUDPChecksum();
                        ipv4Packet.UpdateCalculatedValues();
                        txBuffer.Add(new DivertPacket {
                            Addr = new WINDIVERT_ADDRESS {
                                Direction = 0
                            }, Data = ipv4Packet.Bytes
                        });
                    }
                    if (DstIP.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6)
                    {
                        var ipv6Packet = new PacketDotNet.IPv6Packet(SrcIP, DstIP);
                        ipv6Packet.NextHeader    = PacketDotNet.IPProtocolType.UDP;
                        ipv6Packet.PayloadPacket = udpPacket;
                        udpPacket.UpdateCalculatedValues();
                        udpPacket.UpdateUDPChecksum();
                        ipv6Packet.UpdateCalculatedValues();
                        txBuffer.Add(new DivertPacket {
                            Addr = new WINDIVERT_ADDRESS {
                                Direction = 0
                            }, Data = ipv6Packet.Bytes
                        });
                    }
                }
            }
        }
 public override int GetHashCode()
 {
     return(SrcIP.GetHashCode() + DestIP.GetHashCode());
 }