static const char* l3proto_name(u16 proto)
{
	switch (proto) {
	case AF_INET: return "ipv4";
	case AF_INET6: return "ipv6";
	}

	return "unknown";
}
static const char* l3proto_name(u16 proto)
{
	switch (proto) {
	case AF_INET: return "ipv4";
	case AF_INET6: return "ipv6";
	}

	return "unknown";
}