1extern int print_linkinfo(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg);
2extern int print_addrinfo(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg);
3extern int print_neigh(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg);
4extern int ipaddr_list(int argc, char **argv);
5extern int ipaddr_list_link(int argc, char **argv);
6extern int iproute_monitor(int argc, char **argv);
7extern void iplink_usage(void) __attribute__((noreturn));
8extern void iproute_reset_filter(void);
9extern void ipaddr_reset_filter(int);
10extern void ipneigh_reset_filter(void);
11extern int print_route(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg);
12extern int do_ipaddr(int argc, char **argv);
13extern int do_iproute(int argc, char **argv);
14extern int do_iprule(int argc, char **argv);
15extern int do_ipneigh(int argc, char **argv);
16extern int do_iptunnel(int argc, char **argv);
17extern int do_iplink(int argc, char **argv);
18extern int do_ipmonitor(int argc, char **argv);
19extern int do_multiaddr(int argc, char **argv);
20extern int do_multiroute(int argc, char **argv);
21