128 	SYS(fail, "ip netns add at_ns0");  in config_device()
129 	SYS(fail, "ip link add veth0 address " MAC_VETH1 " type veth peer name veth1");  in config_device()
130 	SYS(fail, "ip link set veth0 netns at_ns0");  in config_device()
131 	SYS(fail, "ip addr add " IP4_ADDR1_VETH1 "/24 dev veth1");  in config_device()
132 	SYS(fail, "ip link set dev veth1 up mtu 1500");  in config_device()
133 	SYS(fail, "ip netns exec at_ns0 ip addr add " IP4_ADDR_VETH0 "/24 dev veth0");  in config_device()
134 	SYS(fail, "ip netns exec at_ns0 ip link set dev veth0 up mtu 1500");  in config_device()
137 fail:  in config_device()
152 	SYS(fail, "ip netns exec at_ns0 ip link add dev %s type vxlan external gbp dstport 4789",  in add_vxlan_tunnel()
154 	SYS(fail, "ip netns exec at_ns0 ip link set dev %s address %s up",  in add_vxlan_tunnel()
156 	SYS(fail, "ip netns exec at_ns0 ip addr add dev %s %s/24",  in add_vxlan_tunnel()
158 	SYS(fail, "ip netns exec at_ns0 ip neigh add %s lladdr %s dev %s",  in add_vxlan_tunnel()
160 	SYS(fail, "ip netns exec at_ns0 ip neigh add %s lladdr %s dev veth0",  in add_vxlan_tunnel()
164 	SYS(fail, "ip link add dev %s type vxlan external gbp dstport 4789",  in add_vxlan_tunnel()
166 	SYS(fail, "ip link set dev %s address %s up", VXLAN_TUNL_DEV1, MAC_TUNL_DEV1);  in add_vxlan_tunnel()
167 	SYS(fail, "ip addr add dev %s %s/24", VXLAN_TUNL_DEV1, IP4_ADDR_TUNL_DEV1);  in add_vxlan_tunnel()
168 	SYS(fail, "ip neigh add %s lladdr %s dev %s",  in add_vxlan_tunnel()
172 fail:  in add_vxlan_tunnel()
185 	SYS(fail, "ip netns exec at_ns0 ip -6 addr add %s/96 dev veth0",  in add_ip6vxlan_tunnel()
187 	SYS(fail, "ip netns exec at_ns0 ip link set dev veth0 up");  in add_ip6vxlan_tunnel()
188 	SYS(fail, "ip -6 addr add %s/96 dev veth1", IP6_ADDR1_VETH1);  in add_ip6vxlan_tunnel()
189 	SYS(fail, "ip -6 addr add %s/96 dev veth1", IP6_ADDR2_VETH1);  in add_ip6vxlan_tunnel()
190 	SYS(fail, "ip link set dev veth1 up");  in add_ip6vxlan_tunnel()
193 	SYS(fail, "ip netns exec at_ns0 ip link add dev %s type vxlan external dstport 4789",  in add_ip6vxlan_tunnel()
195 	SYS(fail, "ip netns exec at_ns0 ip addr add dev %s %s/24",  in add_ip6vxlan_tunnel()
197 	SYS(fail, "ip netns exec at_ns0 ip link set dev %s address %s up",  in add_ip6vxlan_tunnel()
201 	SYS(fail, "ip link add dev %s type vxlan external dstport 4789",  in add_ip6vxlan_tunnel()
203 	SYS(fail, "ip addr add dev %s %s/24", IP6VXLAN_TUNL_DEV1, IP4_ADDR_TUNL_DEV1);  in add_ip6vxlan_tunnel()
204 	SYS(fail, "ip link set dev %s address %s up",  in add_ip6vxlan_tunnel()
208 fail:  in add_ip6vxlan_tunnel()
231 	SYS(fail, "ip -n at_ns0 fou add port 5555 %s", ipproto);  in set_ipip_encap()
232 	SYS(fail, "ip -n at_ns0 link set dev %s type ipip encap %s",  in set_ipip_encap()
234 	SYS(fail, "ip -n at_ns0 link set dev %s type ipip encap-dport 5555",  in set_ipip_encap()
238 fail:  in set_ipip_encap()
244 	SYS(fail, "ip -n at_ns0 link set dev %s up", dev0);  in set_ipv4_addr()
245 	SYS(fail, "ip -n at_ns0 addr add dev %s %s/24", dev0, IP4_ADDR_TUNL_DEV0);  in set_ipv4_addr()
246 	SYS(fail, "ip link set dev %s up", dev1);  in set_ipv4_addr()
247 	SYS(fail, "ip addr add dev %s %s/24", dev1, IP4_ADDR_TUNL_DEV1);  in set_ipv4_addr()
250 fail:  in set_ipv4_addr()
274 	SYS(fail, "ip -n at_ns0 link add dev %s type ipip local %s remote %s",  in add_ipip_tunnel()
280 			goto fail;  in add_ipip_tunnel()
283 	SYS(fail, "ip -n at_ns0 link set dev %s up", IPIP_TUNL_DEV0);  in add_ipip_tunnel()
284 	SYS(fail, "ip -n at_ns0 addr add dev %s %s/24",  in add_ipip_tunnel()
289 		SYS(fail, "ip fou add port 5555 %s", ipproto);  in add_ipip_tunnel()
290 	SYS(fail, "ip link add dev %s type ipip external", IPIP_TUNL_DEV1);  in add_ipip_tunnel()
291 	SYS(fail, "ip link set dev %s up", IPIP_TUNL_DEV1);  in add_ipip_tunnel()
292 	SYS(fail, "ip addr add dev %s %s/24", IPIP_TUNL_DEV1,  in add_ipip_tunnel()
296 fail:  in add_ipip_tunnel()
313 	SYS(fail,  in add_xfrm_tunnel()
319 	SYS(fail,  in add_xfrm_tunnel()
327 	SYS(fail,  in add_xfrm_tunnel()
333 	SYS(fail,  in add_xfrm_tunnel()
341 	SYS(fail, "ip netns exec at_ns0 ip addr add dev veth0 %s/32",  in add_xfrm_tunnel()
343 	SYS(fail, "ip netns exec at_ns0 ip route add %s dev veth0 via %s src %s",  in add_xfrm_tunnel()
349 	SYS(fail,  in add_xfrm_tunnel()
354 	SYS(fail,  in add_xfrm_tunnel()
361 	SYS(fail,  in add_xfrm_tunnel()
366 	SYS(fail,  in add_xfrm_tunnel()
373 	SYS(fail, "ip addr add dev veth1 %s/32", IP4_ADDR_TUNL_DEV1);  in add_xfrm_tunnel()
374 	SYS(fail, "ip route add %s dev veth1 via %s src %s",  in add_xfrm_tunnel()
378 fail:  in add_xfrm_tunnel()
400 	SYS(fail, "ip -n at_ns0 link add dev %s type %s %s local %s remote %s",  in add_ipv4_tunnel()
403 	SYS(fail, "ip link add dev %s type %s external", dev1, type);  in add_ipv4_tunnel()
406 fail:  in add_ipv4_tunnel()
421 	/* disable IPv6 DAD because it might take too long and fail tests */  in set_ipv6_addr()
422 	SYS(fail, "ip -n at_ns0 addr add %s/96 dev veth0 nodad", IP6_ADDR_VETH0);  in set_ipv6_addr()
423 	SYS(fail, "ip -n at_ns0 link set dev veth0 up");  in set_ipv6_addr()
424 	SYS(fail, "ip addr add %s/96 dev veth1 nodad", IP6_ADDR1_VETH1);  in set_ipv6_addr()
425 	SYS(fail, "ip link set dev veth1 up");  in set_ipv6_addr()
427 	SYS(fail, "ip -n at_ns0 addr add dev %s %s/24", dev0, IP4_ADDR_TUNL_DEV0);  in set_ipv6_addr()
428 	SYS(fail, "ip -n at_ns0 addr add dev %s %s/96 nodad", dev0, IP6_ADDR_TUNL_DEV0);  in set_ipv6_addr()
429 	SYS(fail, "ip -n at_ns0 link set dev %s up", dev0);  in set_ipv6_addr()
431 	SYS(fail, "ip addr add dev %s %s/24", dev1, IP4_ADDR_TUNL_DEV1);  in set_ipv6_addr()
432 	SYS(fail, "ip addr add dev %s %s/96 nodad", dev1, IP6_ADDR_TUNL_DEV1);  in set_ipv6_addr()
433 	SYS(fail, "ip link set dev %s up", dev1);  in set_ipv6_addr()
435 fail:  in set_ipv6_addr()
445 	SYS(fail, "ip -n at_ns0 link add dev %s type %s %s local %s remote %s",  in add_ipv6_tunnel()
448 	SYS(fail, "ip link add dev %s type %s external", dev1, type);  in add_ipv6_tunnel()
451 fail:  in add_ipv6_tunnel()
461 	SYS(fail, "ip -n at_ns0 link add dev %s type %s id 2 %s remote %s",  in add_geneve_tunnel()
464 	SYS(fail, "ip link add dev %s type %s %s external", dev1, type, opt);  in add_geneve_tunnel()
467 fail:  in add_geneve_tunnel()
477 	SYS(fail, "ip -n at_ns0 link add dev %s type %s id 22 %s remote %s",  in add_ip6geneve_tunnel()
480 	SYS(fail, "ip link add dev %s type %s %s external", dev1, type, opt);  in add_ip6geneve_tunnel()
483 fail:  in add_ip6geneve_tunnel()
489 	SYS(fail, "%s %s %s > /dev/null", ping_command(family), PING_ARGS, addr);  in test_ping()
491 fail:  in test_ping()