rem: print_mac(((struct ip6t_mac_info *)match->data)->srcaddr, ((struct ip6t_mac_info *)match->data)->invert);
add: print_mac(((struct ip6t_mac_info *)match->data)->srcaddr);
context: static void save(const struct ip6t_ip6 *ip, const struct ip6t_entry_match *match){	printf("--mac-source ");	print_mac(((struct ip6t_mac_info *)match->data)->srcaddr,		  ((struct ip6t_mac_info *)match->data)->invert);}