113 lines
4.5 KiB
C#
113 lines
4.5 KiB
C#
using System;
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using System.Text;
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using System.IO;
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using System.Threading;
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using System.Net;
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using System.Net.Sockets;
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using System.Timers;
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using System.Reflection;
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using System.Collections;
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using System.Collections.Generic;
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using libsecondlife;
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using libsecondlife.Packets;
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using OpenSim.Framework.Console;
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namespace OpenSim.Servers
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{
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public class CheckSumServer : UDPServerBase
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{
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//protected ConsoleBase m_console;
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public CheckSumServer(int port)
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: base(port)
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{
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}
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protected override void OnReceivedData(IAsyncResult result)
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{
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ipeSender = new IPEndPoint(IPAddress.Any, 0);
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epSender = (EndPoint)ipeSender;
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Packet packet = null;
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int numBytes = Server.EndReceiveFrom(result, ref epSender);
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int packetEnd = numBytes - 1;
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packet = Packet.BuildPacket(RecvBuffer, ref packetEnd, ZeroBuffer);
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if (packet.Type == PacketType.SecuredTemplateChecksumRequest)
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{
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SecuredTemplateChecksumRequestPacket checksum = (SecuredTemplateChecksumRequestPacket)packet;
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TemplateChecksumReplyPacket checkreply = new TemplateChecksumReplyPacket();
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checkreply.DataBlock.Checksum = 180572585;
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checkreply.DataBlock.Flags = 0;
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checkreply.DataBlock.MajorVersion = 1;
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checkreply.DataBlock.MinorVersion = 15;
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checkreply.DataBlock.PatchVersion = 0;
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checkreply.DataBlock.ServerVersion = 0;
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checkreply.TokenBlock.Token = checksum.TokenBlock.Token;
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this.SendPacket(checkreply, epSender);
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/*
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//if we wanted to echo the the checksum/ version from the client (so that any client worked)
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SecuredTemplateChecksumRequestPacket checkrequest = new SecuredTemplateChecksumRequestPacket();
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checkrequest.TokenBlock.Token = checksum.TokenBlock.Token;
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this.SendPacket(checkrequest, epSender);
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*/
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}
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else if (packet.Type == PacketType.TemplateChecksumReply)
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{
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//echo back the client checksum reply (Hegemon's method)
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TemplateChecksumReplyPacket checksum2 = (TemplateChecksumReplyPacket)packet;
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TemplateChecksumReplyPacket checkreply2 = new TemplateChecksumReplyPacket();
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checkreply2.DataBlock.Checksum = checksum2.DataBlock.Checksum;
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checkreply2.DataBlock.Flags = checksum2.DataBlock.Flags;
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checkreply2.DataBlock.MajorVersion = checksum2.DataBlock.MajorVersion;
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checkreply2.DataBlock.MinorVersion = checksum2.DataBlock.MinorVersion;
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checkreply2.DataBlock.PatchVersion = checksum2.DataBlock.PatchVersion;
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checkreply2.DataBlock.ServerVersion = checksum2.DataBlock.ServerVersion;
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checkreply2.TokenBlock.Token = checksum2.TokenBlock.Token;
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this.SendPacket(checkreply2, epSender);
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}
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else
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{
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}
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Server.BeginReceiveFrom(RecvBuffer, 0, RecvBuffer.Length, SocketFlags.None, ref epSender, ReceivedData, null);
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}
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private void SendPacket(Packet Pack, EndPoint endp)
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{
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if (!Pack.Header.Resent)
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{
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Pack.Header.Sequence = 1;
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}
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byte[] ZeroOutBuffer = new byte[4096];
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byte[] sendbuffer;
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sendbuffer = Pack.ToBytes();
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try
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{
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if (Pack.Header.Zerocoded)
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{
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int packetsize = Helpers.ZeroEncode(sendbuffer, sendbuffer.Length, ZeroOutBuffer);
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this.SendPackTo(ZeroOutBuffer, packetsize, SocketFlags.None, endp);
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}
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else
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{
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this.SendPackTo(sendbuffer, sendbuffer.Length, SocketFlags.None, endp);
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}
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}
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catch (Exception)
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{
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OpenSim.Framework.Console.MainConsole.Instance.WriteLine(OpenSim.Framework.Console.LogPriority.MEDIUM, "OpenSimClient.cs:ProcessOutPacket() - WARNING: Socket exception occurred on connection ");
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}
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}
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private void SendPackTo(byte[] buffer, int size, SocketFlags flags, EndPoint endp)
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{
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this.Server.SendTo(buffer, size, flags, endp);
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}
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}
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} |