1 extern int print_linkinfo(const struct sockaddr_nl *who, 2 struct nlmsghdr *n, 3 void *arg); 4 extern int print_fdb(const struct sockaddr_nl *who, 5 struct nlmsghdr *n, void *arg); 6 extern int print_mdb(const struct sockaddr_nl *who, 7 struct nlmsghdr *n, void *arg); 8 9 extern int do_fdb(int argc, char **argv); 10 extern int do_mdb(int argc, char **argv); 11 extern int do_monitor(int argc, char **argv); 12 extern int do_vlan(int argc, char **argv); 13 extern int do_link(int argc, char **argv); 14 15 extern int preferred_family; 16 extern int show_stats; 17 extern int show_details; 18 extern int timestamp; 19 extern int compress_vlans; 20 extern struct rtnl_handle rth; 21