public override void ProcessPackage(Package package, AbstractNetworkDevice sender)
{
//Порт, на который пришел пакет
int port = ConnectedDevices.First(x => x.Value == sender).Key;
string stage;
//Адресован ли пакет нам
if (package.EndIP.Peek().Equals(InterfaceAdresses[port].IP))
{
//Убираем верхний адрес в пакете
//Если ничего нет больше - пакет адресован роутеру,
//если есть - надо слать дальше
package.EndIP.Pop();
if (package.EndIP.Count == 0)
{
package.EndIP.Push(InterfaceAdresses[port].IP);
stage = Name + " (" + InterfaceAdresses[port] + ") received package " + package + "from " + package.StartIP;
Logger.WriteLine(stage);
package.AddStage(stage);
package.PackageState = Package.State.RECEIVED;
PackageManager.AddPackage(package);
return;
}
//Пересылка дальше
//проверка по PROXY-таблице
bool ispass = is_pass(package);
if (!ispass)
{
stage = Name + " (" + InterfaceAdresses[port] + ") DENIED package " + package;
Logger.WriteLine(stage);
package.AddStage(stage);
package.PackageState = Package.State.DENIED;
PackageManager.AddPackage(package);
return;
}
//Проверка по таблице маршрутизации
Route route = get_route(package.EndIP.Peek());
if (route == null)
{
stage = Name + " (" + InterfaceAdresses[port] + ") DON'T find route for package " + package;
Logger.WriteLine(stage);
package.AddStage(stage);
package.PackageState = Package.State.NO_ROUTE;
PackageManager.AddPackage(package);
return;
}
if (route.NextRouter != null)
{
package.EndIP.Push(route.NextRouter);
}
send(package, route.PortNo);
}
else
{
package.PackageState = Package.State.REJECTED;
stage = Name + " (" + InterfaceAdresses[0] + ") rejected package " + package;
Logger.WriteLine(stage);
package.AddStage(stage);
PackageManager.AddPackage(package);
}
}