internal void OnDataReceived(byte[] data, IPEndPoint endpoint, SocketType type)
{
var evtargs = new DataReceivedEventArgs();
evtargs.Type = type;
evtargs.Data = data;
evtargs.RemoteEndpoint = endpoint;
if (this.DataReceived != null)
this.DataReceived(this, evtargs);
}
internal abstract void DataReceived(object sender, DataReceivedEventArgs e);
internal override void DataReceived(object sender, DataReceivedEventArgs e)
{
lock (this)
{
var request = new TFTPPacket(e.Data.Length, TFTPOPCodes.UNK, e.RemoteEndpoint);
request.Data = e.Data;
request.Type = SocketType.TFTP;
switch (request.OPCode)
{
case TFTPOPCodes.RRQ:
var rrq_thread = new Thread(new ParameterizedThreadStart(Handle_RRQ_Request));
rrq_thread.Start(request);
break;
case TFTPOPCodes.ERR:
this.Handle_Error_Request(request.ErrorCode, request.ErrorMessage, request.Source, true);
break;
case TFTPOPCodes.ACK:
if (!Clients.ContainsKey(request.Source.Address))
return;
var ack_thread = new Thread(new ParameterizedThreadStart(Handle_ACK_Request));
ack_thread.Start(request);
break;
default:
this.Handle_Error_Request(TFTPErrorCode.IllegalOperation, "Unknown OPCode: {0}".F(request.OPCode), request.Source);
break;
}
}
}
internal override void DataReceived(object sender, DataReceivedEventArgs e)
{
switch (int.Parse(Exts.GetDataAsString(e.Data, 0, 1)))
{
case (int)BootMessageType.Request:
#region "BOTP - Request"
using (var request = new DHCPPacket(e.Data))
{
request.Type = e.Type;
var optvalue = Exts.GetOptionValue(e.Data, DHCPOptionEnum.Vendorclassidentifier);
if (optvalue.Length < 1 || optvalue[0] == byte.MaxValue || e.Data[0] != (byte)BootMessageType.Request)
return;
var cguid = Exts.GetOptionValue(request.Data, DHCPOptionEnum.GUID);
if (cguid.Length == 1)
return;
var guid = Guid.Parse(Exts.GetGuidAsString(cguid, cguid.Length, true));
var clientMAC = Exts.GetDataAsString(request.MacAddress, 0, request.MACAddresslength);
var clientTag = "{0}-{1}".F(guid, clientMAC);
if (!Clients.ContainsKey(clientTag))
Clients.Add(clientTag, new DHCPClient(guid, clientMAC, request.Type, e.RemoteEndpoint));
else
{
Clients[clientTag].Type = request.Type;
Clients[clientTag].EndPoint = e.RemoteEndpoint;
}
var c = Clients[clientTag];
switch (request.MessageType)
{
case DHCPMsgType.Request:
if (e.RemoteEndpoint.Address != IPAddress.None)
this.Handle_DHCP_Request(request, ref c);
break;
case DHCPMsgType.Discover:
this.Handle_DHCP_Request(request, ref c);
break;
case DHCPMsgType.Release:
if (Clients.ContainsKey(clientTag))
Clients.Remove(clientTag);
break;
default:
return;
}
}
#endregion
break;
case (int)BootMessageType.RISRequest:
#region "RIS - Request"
var packet = new RISPacket(e.Data);
var client = new RISClient(e.RemoteEndpoint);
switch (packet.RequestType)
{
case "RQU":
case "REQ":
packet.OPCode = packet.RequestType == "REQ" ? RISOPCodes.REQ : RISOPCodes.RQU;
this.Handle_RIS_Request(packet, ref client, packet.RequestType == "REQ" ? true : false);
break;
case "NEG":
case "AUT":
packet.OPCode = packet.RequestType == "NEG" ? RISOPCodes.NEG : RISOPCodes.AUT;
this.Handle_RIS_Request(packet, ref client);
break;
case "NCQ":
packet.OPCode = RISOPCodes.NCQ;
this.Handle_RIS_Request(packet, ref client);
break;
default:
Errorhandler.Report(LogTypes.Info, "Got Unknown RIS Packet ({0})".F(packet.RequestType));
break;
}
#endregion
break;
case (int)BootMessageType.RISReply:
default:
break;
}
}
