public BaseHandler(int port, int programId) : base() {
this.ProgramID = programId;
NfsHandlerManager.RegisterHandler(this);
_listener = NfsListenerManager.GetListener(port, programId);
_listener.PacketReceived += OnPacketReceived;
}
private void GetPort(NfsPacket sourcePacket, IPEndPoint receivedFrom)
{
// skip past the authentication records
sourcePacket.ReadAuthentication();
sourcePacket.ReadAuthentication();
// Collect the arguments to the procedure
uint programId = sourcePacket.GetUInt();
uint version = sourcePacket.GetUInt();
uint protocol = sourcePacket.GetUInt();
// Put together an XDR reply packet
NfsPacket packet = new NfsPacket(128);
packet.SetUInt(sourcePacket.XID);
packet.SetUInt((uint)RpcSignalType.Reply);
packet.SetUInt((uint)RpcMessageResult.Accepted);
packet.AddNullAuthentication();
if (!NfsHandlerManager.IsProgramRegistered((int)programId))
{
packet.SetUInt((uint)RpcProcedure.ProgramUnavailable);
}
else
{
// TODO: add version checking. we're only doing v2 right now.
// version mismatch gets the ProgMismatch value.
// result.AddLong(RPCConsts.RPCProgMismatch);
// result.AddLong(versmin);
// result.AddLong(versmax);
int port = NfsHandlerManager.GetPort((int)programId);
if (port == 0)
{
packet.SetUInt((uint)RpcProcedure.ProgramMismatch);
}
else
{
packet.SetUInt((uint)RpcProcedure.Success);
packet.SetUInt((uint)port);
}
}
Send(packet, receivedFrom);
}