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());
}