func getDefaultGW(family int) (string, error) {
l, err := netlink.LinkByName("lo")
if err != nil {
return "", err
}
routes, err := netlink.RouteList(l, family)
if err != nil {
return "", err
}
return routes[0].Gw.String(), nil
}
func removeAllRoutesOnLink(link netlink.Link) error {
routes, err := netlink.RouteList(link, netlink.FAMILY_V4)
if err != nil {
return fmt.Errorf("cannot list routes on link %q: %v", link.Attrs().Name, err)
}
for _, route := range routes {
if err := netlink.RouteDel(&route); err != nil {
return fmt.Errorf("error in time of route removal for route %q: %v", route, err)
}
}
return nil
}