private static List<ServerConnection> GetXIVServerIPList()
{
var list1 = new List<ServerConnection>();
var id = Constants.ProcessModel.ProcessID;
var num1 = IntPtr.Zero;
var dwOutBufLen = 0;
var error = 0;
var num2 = IntPtr.Zero;
for (var index = 0; index < 5; ++index)
{
error = (int) UnsafeNativeMethods.GetExtendedTcpTable(num1, ref dwOutBufLen, false, 2U, UnsafeNativeMethods.TCP_TABLE_CLASS.OWNER_PID_ALL, 0U);
if (error != 0)
{
if (num1 != IntPtr.Zero)
{
Marshal.FreeHGlobal(num1);
var num3 = IntPtr.Zero;
}
num1 = Marshal.AllocHGlobal(dwOutBufLen);
}
else
{
break;
}
}
try
{
if (error != 0)
{
throw new Win32Exception(error);
}
var num3 = Marshal.ReadInt32(num1);
var num4 = IntPtr.Add(num1, 4);
for (var index = 0; index <= num3 - 1; ++index)
{
var mibTcprowEx = (UnsafeNativeMethods.MIB_TCPROW_EX) Marshal.PtrToStructure(num4, typeof (UnsafeNativeMethods.MIB_TCPROW_EX));
if (mibTcprowEx.dwProcessId == id)
{
var list2 = list1;
var ffxivConnection1 = new ServerConnection();
ffxivConnection1.SourceAddress = mibTcprowEx.dwRemoteAddr;
ffxivConnection1.SourcePort = (ushort) mibTcprowEx.dwRemotePort;
ffxivConnection1.DestinationAddress = mibTcprowEx.dwLocalAddr;
ffxivConnection1.DestinationPort = (ushort) mibTcprowEx.dwLocalPort;
list2.Add(ffxivConnection1);
}
num4 = IntPtr.Add(num4, Marshal.SizeOf(typeof (UnsafeNativeMethods.MIB_TCPROW_EX)));
}
}
catch
{
throw new Win32Exception(error);
}
finally
{
Marshal.FreeHGlobal(num1);
}
return list1;
/*
var tables = IPHelper.GetExtendedTCPTable(true);
return (tables.Cast<TCPRow>()
.Where(table => table.ProcessId == Constants.ProcessModel.ProcessID)
.Select(table => new ServerConnection
{
SourceAddress = BitConverter.ToUInt32(table.RemoteEndPoint.Address.GetAddressBytes(), 0),
SourcePort = (ushort)table.RemoteEndPoint.Port,
DestinationAddress = BitConverter.ToUInt32(table.LocalEndPoint.Address.GetAddressBytes(), 0),
DestinationPort = (ushort)table.LocalEndPoint.Port
})).ToList();
*/
}
private void ParseData(SocketObject asyncState, byte[] byteData, int nReceived)
{
if ((byteData == null) || (byteData[9] != 6))
{
return;
}
var startIndex = (byte) ((byteData[0] & 15) * 4);
var lengthCheck = IPAddress.NetworkToHostOrder(BitConverter.ToInt16(byteData, 2));
if ((nReceived < lengthCheck) || (startIndex > lengthCheck))
{
return;
}
var IP = new IPHeader(byteData, nReceived);
var TCP = new TCPHeader(byteData, nReceived);
var serverConnection = new ServerConnection
{
SourceAddress = (uint) BitConverter.ToInt32(byteData, 12),
DestinationAddress = (uint) BitConverter.ToInt32(byteData, 16),
SourcePort = (ushort) BitConverter.ToInt16(byteData, startIndex),
DestinationPort = (ushort) BitConverter.ToInt16(byteData, startIndex + 2),
TimeStamp = DateTime.Now
/*
// these don't return the right ports for some reason
DestinationAddress = BitConverter.ToUInt32(IP.DestinationAddress.GetAddressBytes(), 0),
DestinationPort = Convert.ToUInt16(TCP.DestinationPort),
SourcePort = Convert.ToUInt16(TCP.SourcePort),
SourceAddress = BitConverter.ToUInt32(IP.SourceAddress.GetAddressBytes(), 0),
TimeStamp = DateTime.Now
*/
};
lock (Lock)
{
var found = Enumerable.Contains(ServerConnections, serverConnection);
if (!found)
{
if (Enumerable.Contains(DroppedConnections, serverConnection))
{
return;
}
UpdateConnectionList();
if (!Enumerable.Contains(ServerConnections, serverConnection))
{
DroppedConnections.Add(serverConnection);
return;
}
}
}
if ((startIndex + 12) > nReceived)
{
return;
}
var nextTCPSequence = (uint) IPAddress.NetworkToHostOrder(BitConverter.ToInt32(byteData, startIndex + 4));
var cut = (byte) (((byteData[startIndex + 12] & 240) >> 4) * 4);
var length = (nReceived - startIndex) - cut;
if ((length < 0) || (length > 0x10000))
{
return;
}
if (lengthCheck == startIndex + cut)
{
return;
}
lock (asyncState.SocketLock)
{
var connection = asyncState.Connections.FirstOrDefault(x => x.Equals(serverConnection));
if (connection == null)
{
connection = new NetworkConnection
{
SourceAddress = serverConnection.SourceAddress,
SourcePort = serverConnection.SourcePort,
DestinationAddress = serverConnection.DestinationAddress,
DestinationPort = serverConnection.DestinationPort
};
asyncState.Connections.Add(connection);
}
if (length == 0)
{
return;
}
var destinationBuffer = new byte[length];
Array.Copy(byteData, startIndex + cut, destinationBuffer, 0, length);
if (connection.StalePackets.ContainsKey(nextTCPSequence))
{
connection.StalePackets.Remove(nextTCPSequence);
}
var packet = new NetworkPacket
{
TCPSequence = nextTCPSequence,
Buffer = destinationBuffer,
Push = (byteData[startIndex + 13] & 8) != 0
};
connection.StalePackets.Add(nextTCPSequence, packet);
if (!connection.NextTCPSequence.HasValue)
{
connection.NextTCPSequence = nextTCPSequence;
}
if (connection.StalePackets.Count == 1)
{
connection.LastGoodNetworkPacketTime = DateTime.Now;
}
if (!connection.StalePackets.Any(x => (x.Key <= connection.NextTCPSequence.Value)))
{
if (DateTime.Now.Subtract(connection.LastGoodNetworkPacketTime)
.TotalSeconds <= 10.0)
{
return;
}
connection.NextTCPSequence = connection.StalePackets.Min(x => x.Key);
}
while (connection.StalePackets.Any(x => x.Key <= connection.NextTCPSequence.Value))
{
NetworkPacket stalePacket;
uint sequenceLength = 0;
if (connection.StalePackets.ContainsKey(connection.NextTCPSequence.Value))
{
stalePacket = connection.StalePackets[connection.NextTCPSequence.Value];
}
else
{
stalePacket = (connection.StalePackets.Where(x => x.Key <= connection.NextTCPSequence.Value)
.OrderBy(x => x.Key)).FirstOrDefault()
.Value;
sequenceLength = connection.NextTCPSequence.Value - stalePacket.TCPSequence;
}
connection.StalePackets.Remove(stalePacket.TCPSequence);
if (connection.NetworkBufferPosition == 0)
{
connection.LastNetworkBufferUpdate = DateTime.Now;
}
if (sequenceLength >= stalePacket.Buffer.Length)
{
continue;
}
connection.NextTCPSequence = stalePacket.TCPSequence + ((uint) stalePacket.Buffer.Length);
Array.Copy(stalePacket.Buffer, sequenceLength, connection.NetworkBuffer, connection.NetworkBufferPosition, stalePacket.Buffer.Length - sequenceLength);
connection.NetworkBufferPosition += stalePacket.Buffer.Length - ((int) sequenceLength);
if (stalePacket.Push)
{
ProcessNetworkBuffer(connection);
}
}
}
}
