Esempio n. 1
0
func confInit() {
	idsCache = govpn.NewCipherCache(nil)
	confRefresh()
	go func() {
		for {
			time.Sleep(RefreshRate)
			confRefresh()
		}
	}()
}
Esempio n. 2
0
func main() {
	flag.Parse()
	timeout = *timeoutP
	var err error
	log.SetFlags(log.Ldate | log.Lmicroseconds | log.Lshortfile)

	govpn.MTU = *mtu

	if *egdPath != "" {
		log.Println("Using", *egdPath, "EGD")
		govpn.EGDInit(*egdPath)
	}

	verifier, err := govpn.VerifierFromString(*verifierRaw)
	if err != nil {
		log.Fatalln(err)
	}
	priv := verifier.PasswordApply(govpn.StringFromFile(*keyPath))
	conf = &govpn.PeerConf{
		Id:       verifier.Id,
		Timeout:  time.Second * time.Duration(timeout),
		Noise:    *noisy,
		CPR:      *cpr,
		Verifier: verifier,
		DSAPriv:  priv,
	}
	idsCache = govpn.NewCipherCache([]govpn.PeerId{*verifier.Id})
	log.Println(govpn.VersionGet())

	tap, err = govpn.TAPListen(*ifaceName)
	if err != nil {
		log.Fatalln("Can not listen on TAP interface:", err)
	}

	log.Println("Max MTU on TAP interface:", govpn.TAPMaxMTU())
	if *stats != "" {
		log.Println("Stats are going to listen on", *stats)
		statsPort, err := net.Listen("tcp", *stats)
		if err != nil {
			log.Fatalln("Can not listen on stats port:", err)
		}
		go govpn.StatsProcessor(statsPort, &knownPeers)
	}

	termSignal := make(chan os.Signal, 1)
	signal.Notify(termSignal, os.Interrupt, os.Kill)

MainCycle:
	for {
		timeouted := make(chan struct{})
		rehandshaking := make(chan struct{})
		termination := make(chan struct{})
		if *proxyAddr != "" {
			*proto = "tcp"
		}
		switch *proto {
		case "udp":
			go startUDP(timeouted, rehandshaking, termination)
		case "tcp":
			if *proxyAddr != "" {
				go proxyTCP(timeouted, rehandshaking, termination)
			} else {
				go startTCP(timeouted, rehandshaking, termination)
			}
		default:
			log.Fatalln("Unknown protocol specified")
		}
		select {
		case <-termSignal:
			log.Fatalln("Finishing")
			termination <- struct{}{}
			break MainCycle
		case <-timeouted:
			break MainCycle
		case <-rehandshaking:
		}
		close(timeouted)
		close(rehandshaking)
		close(termination)
	}
	govpn.ScriptCall(*downPath, *ifaceName)
}