Exemple #1
0
func GetDefaultRouteIface() (int, error) {
	defaultRt := net.ParseIP("0.0.0.0")
	rs, err := netlink.RouteGet(defaultRt)
	if err != nil {
		return -1, fmt.Errorf("unable to get default route: %v", err)
	}
	if len(rs) > 0 {
		return rs[0].LinkIndex, nil
	}
	return -1, ErrNoDefaultRoute
}
Exemple #2
0
func GetIfaceForRoute(address string) (string, error) {
	addr := net.ParseIP(address)
	if addr == nil {
		return "", errors.New("invalid address")
	}
	routes, err := netlink.RouteGet(addr)
	if err != nil {
		return "", err
	}
	if len(routes) <= 0 {
		return "", errors.New("no route to destination")
	}
	link, err := netlink.LinkByIndex(routes[0].LinkIndex)
	if err != nil {
		return "", err
	}
	return link.Attrs().Name, nil
}