Golang OpenTun Examples

Example #1

File: network.go Project: smessmer/flannel

func (n *network) initTun() error {
	var tunName string
	var err error

	n.tun, tunName, err = ip.OpenTun("flannel%d")
	if err != nil {
		return fmt.Errorf("failed to open TUN device: %v", err)
	}

	err = configureIface(tunName, n.tunNet, n.MTU())
	if err != nil {
		return err
	}

	return nil
}

Example #2

File: udp.go Project: OpenSorceress/flannel

func (m *UdpBackend) initTun() error {
	var tunName string
	var err error

	m.tun, tunName, err = ip.OpenTun("flannel%d")
	if err != nil {
		return fmt.Errorf("Failed to open TUN device: %v", err)
	}

	err = configureIface(tunName, m.tunNet, m.mtu)
	if err != nil {
		return err
	}

	return nil
}

Example #3

File: udp.go Project: hingstarne/flannel

func (m *UdpBackend) initTun(ipMasq bool) error {
	var tunName string
	var err error

	m.tun, tunName, err = ip.OpenTun("flannel%d")
	if err != nil {
		return fmt.Errorf("Failed to open TUN device: %v", err)
	}

	err = configureIface(tunName, m.tunNet, m.mtu)
	if err != nil {
		return err
	}

	if ipMasq {
		err = setupIpMasq(m.tunNet.Network(), tunName)
		if err != nil {
			return err
		}
	}

	return nil
}