public ClientPacket(byte[] data)
{
data = NetworkSyntheticTesting.SyntheticCorruption_C2S(data);
ParsePacketData(data);
if (IsValid)
{
ReadFragments();
}
}
private void SendPacketRaw(ServerPacket packet)
{
byte[] buffer = ArrayPool <byte> .Shared.Rent((int)(PacketHeader.HeaderSize + (packet.Data?.Length ?? 0) + (packet.Fragments.Count *PacketFragment.MaxFragementSize)));
try
{
var socket = connectionListener.Socket;
packet.CreateReadyToSendPacket(buffer, out var size);
packetLog.Debug(packet.ToString());
buffer = NetworkSyntheticTesting.SyntheticCorruption_S2C(buffer);
if (packetLog.IsDebugEnabled)
{
var listenerEndpoint = (System.Net.IPEndPoint)socket.LocalEndPoint;
var sb = new StringBuilder();
sb.AppendLine(String.Format("[{5}] Sending Packet (Len: {0}) [{1}:{2}=>{3}:{4}]", buffer.Length, listenerEndpoint.Address, listenerEndpoint.Port, session.EndPoint.Address, session.EndPoint.Port, session.Network.ClientId));
sb.AppendLine(buffer.BuildPacketString());
packetLog.Debug(sb.ToString());
}
try
{
socket.SendTo(buffer, size, SocketFlags.None, session.EndPoint);
}
catch (SocketException ex)
{
// Unhandled Exception: System.Net.Sockets.SocketException: A message sent on a datagram socket was larger than the internal message buffer or some other network limit, or the buffer used to receive a datagram into was smaller than the datagram itself
// at System.Net.Sockets.Socket.UpdateStatusAfterSocketErrorAndThrowException(SocketError error, String callerName)
// at System.Net.Sockets.Socket.SendTo(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags, EndPoint remoteEP)
var listenerEndpoint = (System.Net.IPEndPoint)socket.LocalEndPoint;
var sb = new StringBuilder();
sb.AppendLine(ex.ToString());
sb.AppendLine(String.Format("[{5}] Sending Packet (Len: {0}) [{1}:{2}=>{3}:{4}]", buffer.Length, listenerEndpoint.Address, listenerEndpoint.Port, session.EndPoint.Address, session.EndPoint.Port, session.Network.ClientId));
log.Error(sb.ToString());
session.Terminate(SessionTerminationReason.SendToSocketException, null, null, ex.Message);
}
}
finally
{
ArrayPool <byte> .Shared.Return(buffer, true);
}
}
public bool Unpack(byte[] data)
{
try
{
// This won't actually do anything by default unless some bools in NetworkSyntheticTesting are enabled manually
data = NetworkSyntheticTesting.SyntheticCorruption_C2S(data);
if (data.Length < PacketHeader.HeaderSize)
{
return(false);
}
Header.Unpack(data);
if (Header.Size > data.Length - PacketHeader.HeaderSize)
{
return(false);
}
Data = new MemoryStream(data, PacketHeader.HeaderSize, Header.Size, false, true);
DataReader = new BinaryReader(Data);
HeaderOptional.Unpack(DataReader, Header);
if (!HeaderOptional.IsValid)
{
return(false);
}
if (!ReadFragments())
{
return(false);
}
return(true);
}
catch (Exception ex)
{
packetLog.Error("Invalid packet data", ex);
return(false);
}
}
private void SendPacketRaw(ServerPacket packet)
{
Socket socket = SocketManager.GetMainSocket();
byte[] payload = packet.GetPayload();
#if NETDIAG
payload = NetworkSyntheticTesting.SyntheticCorruption_S2C(payload);
#endif
if (packetLog.IsDebugEnabled)
{
var listenerEndpoint = (System.Net.IPEndPoint)socket.LocalEndPoint;
var sb = new StringBuilder();
sb.AppendLine(String.Format("[{5}] Sending Packet (Len: {0}) [{1}:{2}=>{3}:{4}]", payload.Length, listenerEndpoint.Address, listenerEndpoint.Port, session.EndPoint.Address, session.EndPoint.Port, session.Network.ClientId));
sb.AppendLine(payload.BuildPacketString());
packetLog.Debug(sb.ToString());
}
try
{
socket.SendTo(payload, session.EndPoint);
}
catch (SocketException ex)
{
// Unhandled Exception: System.Net.Sockets.SocketException: A message sent on a datagram socket was larger than the internal message buffer or some other network limit, or the buffer used to receive a datagram into was smaller than the datagram itself
// at System.Net.Sockets.Socket.UpdateStatusAfterSocketErrorAndThrowException(SocketError error, String callerName)
// at System.Net.Sockets.Socket.SendTo(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags, EndPoint remoteEP)
var listenerEndpoint = (System.Net.IPEndPoint)socket.LocalEndPoint;
var sb = new StringBuilder();
sb.AppendLine(ex.ToString());
sb.AppendLine(String.Format("[{5}] Sending Packet (Len: {0}) [{1}:{2}=>{3}:{4}]", payload.Length, listenerEndpoint.Address, listenerEndpoint.Port, session.EndPoint.Address, session.EndPoint.Port, session.Network.ClientId));
log.Error(sb.ToString());
session.State = Enum.SessionState.NetworkTimeout; // This will force WorldManager to drop the session
}
}
