yggdrasil-go/src/tuntap/tun_dummy.go

// +build mobile

package tuntap

// This is to catch unsupported platforms
// If your platform supports tun devices, you could try configuring it manually

// Creates the TUN/TAP adapter, if supported by the Water library. Note that
// no guarantees are made at this point on an unsupported platform.
func (tun *TunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int) error {
	tun.mtu = getSupportedMTU(mtu)
	return tun.setupAddress(addr)
}

// We don't know how to set the IPv6 address on an unknown platform, therefore
// write about it to stdout and don't try to do anything further.
func (tun *TunAdapter) setupAddress(addr string) error {
	return nil
}