Function setInterfaceIP

tailnet/test/integration/network.go:723–730

setInterfaceIP sets the IP address on the given interface. It automatically adds a /24 subnet mask.

(netNS *os.File, ifaceName, ip string)

// setInterfaceIP sets the IP address on the given interface. It automatically
// adds a /24 subnet mask.
func setInterfaceIP(netNS *os.File, ifaceName, ip string) error {
	_, err := commandInNetNS(netNS, "ip", []string{"addr", "add", ip + "/24", "dev", ifaceName}).Output()
	if err != nil {
		return xerrors.Errorf("set IP %q on interface %q in netns: %w", ip, ifaceName, wrapExitErr(err))
	}

	return nil
}

// setInterfaceIP6 sets the IPv6 address on the given interface. It automatically
// adds a /64 subnet mask.