152 static int setup(const char *tun_dev)  in setup()  argument
157 	tap_fd = open_tuntap(tun_dev, false);  in setup()
161 	target_index = if_nametoindex(tun_dev);  in setup()
169 	SYS(fail, "ip link set %s up", tun_dev);  in setup()
176 	SYS(fail, "ip route add t 100 default dev %s", tun_dev);  in setup()
188 	const char *tun_dev = "tun0";  in test_lwt_reroute_normal_xmit()  local
197 	tun_fd = setup(tun_dev);  in test_lwt_reroute_normal_xmit()
201 	ifindex = if_nametoindex(tun_dev);  in test_lwt_reroute_normal_xmit()
221 	const char *tun_dev = "tun0";  in test_lwt_reroute_qdisc_dropped()  local
226 	tun_fd = setup(tun_dev);  in test_lwt_reroute_qdisc_dropped()
230 	SYS(fail, "tc qdisc replace dev %s root fq limit 5 flow_limit 5", tun_dev);  in test_lwt_reroute_qdisc_dropped()
232 	ifindex = if_nametoindex(tun_dev);  in test_lwt_reroute_qdisc_dropped()