selftests/bpf/test_lwt_ip_encap.sh

18 #   IP*_1 <=> IP*_2 <=> IP*_3 <=> IP*_4 (the top route)
21 #   NS1/NS2 are configured to route packets to IPv*_GRE via IP*_8
27 #      from IP*_SRC to IP*_DST can work is via IPv*_GRE
30 #       that encaps the packets with an IP/GRE header to route to IPv*_GRE
36 #       that encaps the packets with an IP/GRE header to route to IPv*_GRE
111 	ip netns add "${NS1}"
112 	ip netns add "${NS2}"
113 	ip netns add "${NS3}"
115 	ip link add veth1 type veth peer name veth2
116 	ip link add veth3 type veth peer name veth4
117 	ip link add veth5 type veth peer name veth6
118 	ip link add veth7 type veth peer name veth8
120 	ip netns exec ${NS2} sysctl -wq net.ipv4.ip_forward=1
121 	ip netns exec ${NS2} sysctl -wq net.ipv6.conf.all.forwarding=1
123 	ip link set veth1 netns ${NS1}
124 	ip link set veth2 netns ${NS2}
125 	ip link set veth3 netns ${NS2}
126 	ip link set veth4 netns ${NS3}
127 	ip link set veth5 netns ${NS1}
128 	ip link set veth6 netns ${NS2}
129 	ip link set veth7 netns ${NS2}
130 	ip link set veth8 netns ${NS3}
133 		ip -netns ${NS1} link add red type vrf table 1001
134 		ip -netns ${NS1} link set red up
135 		ip -netns ${NS1} route add table 1001 unreachable default metric 8192
136 		ip -netns ${NS1} -6 route add table 1001 unreachable default metric 8192
137 		ip -netns ${NS1} link set veth1 vrf red
138 		ip -netns ${NS1} link set veth5 vrf red
140 		ip -netns ${NS2} link add red type vrf table 1001
141 		ip -netns ${NS2} link set red up
142 		ip -netns ${NS2} route add table 1001 unreachable default metric 8192
143 		ip -netns ${NS2} -6 route add table 1001 unreachable default metric 8192
144 		ip -netns ${NS2} link set veth2 vrf red
145 		ip -netns ${NS2} link set veth3 vrf red
146 		ip -netns ${NS2} link set veth6 vrf red
147 		ip -netns ${NS2} link set veth7 vrf red
151 	ip -netns ${NS1}    addr add ${IPv4_1}/24  dev veth1
152 	ip -netns ${NS2}    addr add ${IPv4_2}/24  dev veth2
153 	ip -netns ${NS2}    addr add ${IPv4_3}/24  dev veth3
154 	ip -netns ${NS3}    addr add ${IPv4_4}/24  dev veth4
155 	ip -netns ${NS1} -6 addr add ${IPv6_1}/128 nodad dev veth1
156 	ip -netns ${NS2} -6 addr add ${IPv6_2}/128 nodad dev veth2
157 	ip -netns ${NS2} -6 addr add ${IPv6_3}/128 nodad dev veth3
158 	ip -netns ${NS3} -6 addr add ${IPv6_4}/128 nodad dev veth4
161 	ip -netns ${NS1}    addr add ${IPv4_5}/24  dev veth5
162 	ip -netns ${NS2}    addr add ${IPv4_6}/24  dev veth6
163 	ip -netns ${NS2}    addr add ${IPv4_7}/24  dev veth7
164 	ip -netns ${NS3}    addr add ${IPv4_8}/24  dev veth8
165 	ip -netns ${NS1} -6 addr add ${IPv6_5}/128 nodad dev veth5
166 	ip -netns ${NS2} -6 addr add ${IPv6_6}/128 nodad dev veth6
167 	ip -netns ${NS2} -6 addr add ${IPv6_7}/128 nodad dev veth7
168 	ip -netns ${NS3} -6 addr add ${IPv6_8}/128 nodad dev veth8
170 	ip -netns ${NS1} link set dev veth1 up
171 	ip -netns ${NS2} link set dev veth2 up
172 	ip -netns ${NS2} link set dev veth3 up
173 	ip -netns ${NS3} link set dev veth4 up
174 	ip -netns ${NS1} link set dev veth5 up
175 	ip -netns ${NS2} link set dev veth6 up
176 	ip -netns ${NS2} link set dev veth7 up
177 	ip -netns ${NS3} link set dev veth8 up
179 	# configure routes: IP*_SRC -> veth1/IP*_2 (= top route) default;
184 	ip -netns ${NS1}    route add ${IPv4_2}/32  dev veth1 ${VRF}
185 	ip -netns ${NS1}    route add default dev veth1 via ${IPv4_2} ${VRF}  # go top by default
186 	ip -netns ${NS1} -6 route add ${IPv6_2}/128 dev veth1 ${VRF}
187 	ip -netns ${NS1} -6 route add default dev veth1 via ${IPv6_2} ${VRF}  # go top by default
189 	ip -netns ${NS1}    route add ${IPv4_6}/32  dev veth5 ${VRF}
190 	ip -netns ${NS1}    route add ${IPv4_7}/32  dev veth5 via ${IPv4_6} ${VRF}
191 	ip -netns ${NS1}    route add ${IPv4_8}/32  dev veth5 via ${IPv4_6} ${VRF}
192 	ip -netns ${NS1} -6 route add ${IPv6_6}/128 dev veth5 ${VRF}
193 	ip -netns ${NS1} -6 route add ${IPv6_7}/128 dev veth5 via ${IPv6_6} ${VRF}
194 	ip -netns ${NS1} -6 route add ${IPv6_8}/128 dev veth5 via ${IPv6_6} ${VRF}
198 	ip -netns ${NS2}    route add ${IPv4_1}/32  dev veth2 ${VRF}
199 	ip -netns ${NS2}    route add ${IPv4_4}/32  dev veth3 ${VRF}
200 	ip -netns ${NS2} -6 route add ${IPv6_1}/128 dev veth2 ${VRF}
201 	ip -netns ${NS2} -6 route add ${IPv6_4}/128 dev veth3 ${VRF}
203 	ip -netns ${NS2}    route add ${IPv4_5}/32  dev veth6 ${VRF}
204 	ip -netns ${NS2}    route add ${IPv4_8}/32  dev veth7 ${VRF}
205 	ip -netns ${NS2} -6 route add ${IPv6_5}/128 dev veth6 ${VRF}
206 	ip -netns ${NS2} -6 route add ${IPv6_8}/128 dev veth7 ${VRF}
210 	ip -netns ${NS3}    route add ${IPv4_3}/32  dev veth4
211 	ip -netns ${NS3}    route add ${IPv4_1}/32  dev veth4 via ${IPv4_3}
212 	ip -netns ${NS3}    route add ${IPv4_2}/32  dev veth4 via ${IPv4_3}
213 	ip -netns ${NS3} -6 route add ${IPv6_3}/128 dev veth4
214 	ip -netns ${NS3} -6 route add ${IPv6_1}/128 dev veth4 via ${IPv6_3}
215 	ip -netns ${NS3} -6 route add ${IPv6_2}/128 dev veth4 via ${IPv6_3}
217 	ip -netns ${NS3}    route add ${IPv4_7}/32  dev veth8
218 	ip -netns ${NS3}    route add ${IPv4_5}/32  dev veth8 via ${IPv4_7}
219 	ip -netns ${NS3}    route add ${IPv4_6}/32  dev veth8 via ${IPv4_7}
220 	ip -netns ${NS3} -6 route add ${IPv6_7}/128 dev veth8
221 	ip -netns ${NS3} -6 route add ${IPv6_5}/128 dev veth8 via ${IPv6_7}
222 	ip -netns ${NS3} -6 route add ${IPv6_6}/128 dev veth8 via ${IPv6_7}
225 	ip -netns ${NS3} tunnel add gre_dev mode gre remote ${IPv4_1} local ${IPv4_GRE} ttl 255
226 	ip -netns ${NS3} link set gre_dev up
227 	ip -netns ${NS3} addr add ${IPv4_GRE} dev gre_dev
228 	ip -netns ${NS1} route add ${IPv4_GRE}/32 dev veth5 via ${IPv4_6} ${VRF}
229 	ip -netns ${NS2} route add ${IPv4_GRE}/32 dev veth7 via ${IPv4_8} ${VRF}
233 	ip -netns ${NS3} -6 tunnel add name gre6_dev mode ip6gre remote ${IPv6_1} local ${IPv6_GRE} ttl 255
234 	ip -netns ${NS3} link set gre6_dev up
235 	ip -netns ${NS3} -6 addr add ${IPv6_GRE} nodad dev gre6_dev
236 	ip -netns ${NS1} -6 route add ${IPv6_GRE}/128 dev veth5 via ${IPv6_6} ${VRF}
237 	ip -netns ${NS2} -6 route add ${IPv6_GRE}/128 dev veth7 via ${IPv6_8} ${VRF}
240 	ip netns exec ${NS1} sysctl -wq net.ipv4.conf.all.rp_filter=0
241 	ip netns exec ${NS2} sysctl -wq net.ipv4.conf.all.rp_filter=0
242 	ip netns exec ${NS3} sysctl -wq net.ipv4.conf.all.rp_filter=0
256 	ip netns del ${NS1} 2> /dev/null
257 	ip netns del ${NS2} 2> /dev/null
258 	ip netns del ${NS3} 2> /dev/null
265 	ip -netns ${NS1} route del ${IPv4_GRE} dev veth5 ${VRF}
266 	ip -netns ${NS2} route del ${IPv4_GRE} dev veth7 ${VRF}
267 	ip -netns ${NS1} -6 route del ${IPv6_GRE}/128 dev veth5 ${VRF}
268 	ip -netns ${NS2} -6 route del ${IPv6_GRE}/128 dev veth7 ${VRF}
273 	ip -netns ${NS1} route add unreachable ${IPv4_GRE}/32 ${VRF}
274 	ip -netns ${NS2} route add unreachable ${IPv4_GRE}/32 ${VRF}
275 	ip -netns ${NS1} -6 route add unreachable ${IPv6_GRE}/128 ${VRF}
276 	ip -netns ${NS2} -6 route add unreachable ${IPv6_GRE}/128 ${VRF}
286 		ip netns exec ${NS1} ping  -c 1 -W 1 -I veth1 ${IPv4_DST} 2>&1 > /dev/null
289 		ip netns exec ${NS1} ping6 -c 1 -W 6 -I veth1 ${IPv6_DST} 2>&1 > /dev/null
320 		ip netns exec ${NS3} bash -c \
324 		ip netns exec ${NS3} bash -c \
334 	ip netns exec ${NS1} bash -c \
357 	ip -netns ${NS2}    route del ${IPv4_DST}/32  dev veth3 ${VRF}
358 	ip -netns ${NS2} -6 route del ${IPv6_DST}/128 dev veth3 ${VRF}
364 		ip -netns ${NS1} route add ${IPv4_DST} encap bpf xmit obj \
366 		ip -netns ${NS1} -6 route add ${IPv6_DST} encap bpf xmit obj \
369 		ip -netns ${NS1} route add ${IPv4_DST} encap bpf xmit obj \
371 		ip -netns ${NS1} -6 route add ${IPv6_DST} encap bpf xmit obj \
381 	# source IP/device, which is easy to do with ping and hard with dd/nc.
415 	ip -netns ${NS2}    route del ${IPv4_DST}/32  dev veth3 ${VRF}
416 	ip -netns ${NS2} -6 route del ${IPv6_DST}/128 dev veth3 ${VRF}
422 		ip -netns ${NS2} route add ${IPv4_DST} encap bpf in obj \
424 		ip -netns ${NS2} -6 route add ${IPv6_DST} encap bpf in obj \
427 		ip -netns ${NS2} route add ${IPv4_DST} encap bpf in obj \
429 		ip -netns ${NS2} -6 route add ${IPv6_DST} encap bpf in obj \