Beispiel #1
0
func TestSetupTunDevice(t *testing.T) {
	var err error

	if err := exec.Command("sudo", "ip", "tuntap", "del", "tun87", "mode", "tun").Run(); err != nil {
		// t.Fatal(err)
	}

	if err = exec.Command("sudo", "ip", "tuntap", "add", deviceName, "mode", "tun").Run(); err != nil {
		t.Fatal(err)
	}

	if err = exec.Command("sudo", "ip", "link", "set", deviceName, "up").Run(); err != nil {
		t.Fatal(err)
	}

	if err = exec.Command("sudo", "ip", "addr", "add", deviceMask, "dev", deviceName).Run(); err != nil {
		t.Fatal(err)
	}

	if iface, err = tuntap.Open(deviceName, tuntap.DevTun); err != nil {
		t.Fatal(err)
	}
	tunio = NewTunIO(&mockDialer{})
	go runPacketCaptureLoop(iface, tunio)
}
Beispiel #2
0
func startDevPump() error {
	var err error
	tunDev, err = tuntap.Open("tunTCP%d", tuntap.DevTun)
	if err != nil {
		return err
	}

	if err := setupTun(tunDev, tunAddr); err != nil {
		tunDev.Close()
		return err
	}

	return nil
}
Beispiel #3
0
func main() {
	if len(os.Args) != 3 {
		fmt.Println("syntax:", os.Args[0], "tun|tap", "<device name>")
		return
	}

	var typ tuntap.DevKind
	switch os.Args[1] {
	case "tun":
		typ = tuntap.DevTun
	case "tap":
		typ = tuntap.DevTap
	default:
		fmt.Println("Unknown device type", os.Args[1])
		return
	}

	tun, err := tuntap.Open(os.Args[2], typ)
	if err != nil {
		fmt.Println("Error opening tun/tap device:", err)
		return
	}

	fmt.Println("Listening on", tun.Name())
	for {
		pkt, err := tun.ReadPacket()
		if err != nil {
			fmt.Println("Read error:", err)
		} else {
			if pkt.Truncated {
				fmt.Printf("!")
			} else {
				fmt.Printf(" ")
			}
			fmt.Printf("%x %x\n", pkt.Protocol, pkt.Packet)
		}
	}
}