300 static void __set_device_mtu(int fd, const char *ifname, unsigned int mtu)  in __set_device_mtu()  argument
306 	ifr.ifr_mtu = mtu;  in __set_device_mtu()
313 static void set_device_mtu(int fd, int mtu)  in set_device_mtu()  argument
320 	__set_device_mtu(fd, cfg_ifname, mtu);  in set_device_mtu()
322 	if (val != mtu)  in set_device_mtu()
349 	unsigned int mtu;  in get_path_mtu()  local
352 	vallen = sizeof(mtu);  in get_path_mtu()
354 		ret = getsockopt(fd, SOL_IP, IP_MTU, &mtu, &vallen);  in get_path_mtu()
356 		ret = getsockopt(fd, SOL_IPV6, IPV6_MTU, &mtu, &vallen);  in get_path_mtu()
362 	fprintf(stderr, "path mtu (read):  %u\n", mtu);  in get_path_mtu()
363 	return mtu;  in get_path_mtu()
367 static void set_route_mtu(int mtu, bool is_ipv4)  in set_route_mtu()  argument
427 	*((int *)(RTA_DATA(rta))) = mtu;  in set_route_mtu()
438 	fprintf(stderr, "route mtu (test): %u\n", mtu);  in set_route_mtu()