2 # SPDX-License-Identifier: GPL-2.0
4 # Validate cached routes in fib{6}_nh that is used by multiple prefixes.
5 # Validate a different # exception is generated in h0 for each remote host.
13 # routing in h0 to hN is done with nexthop objects.
19 which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
21 ################################################################################
30 if [ ${rc} -eq ${expected} ]; then
31 printf "TEST: %-60s [ OK ]\n" "${msg}"
32 nsuccess=$((nsuccess+1))
36 printf "TEST: %-60s [FAIL]\n" "${msg}"
37 if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
39 echo "hit enter to continue, 'q' to quit"
41 [ "$a" = "q" ] && exit 1
45 [ "$VERBOSE" = "1" ] && echo
54 if [ "$VERBOSE" = "1" ]; then
60 if [ "$VERBOSE" = "1" -a -n "$out" ]; then
64 [ "$VERBOSE" = "1" ] && echo
69 ################################################################################
76 ip netns exec ${ns} sysctl -q -w net.ipv6.conf.all.keep_addr_on_down=1
79 ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=0
82 ip netns exec $ns sysctl -q -w net.ipv4.ip_forward=1
83 ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=1
95 setup_ns h0 r1 h1 h2 h3
101 for ns in ${h[0]} ${r[1]} ${h[1]} ${h[2]} ${h[3]}
107 # create interconnects
112 ip -netns ${h[$i]} li add eth0 type veth peer name r1h${i}
113 ip -netns ${h[$i]} li set eth0 up
114 ip -netns ${h[$i]} li set r1h${i} netns ${r[1]} name eth${i} up
116 ip -netns ${h[$i]} addr add dev eth0 172.16.10${i}.1/24
117 ip -netns ${h[$i]} -6 addr add dev eth0 2001:db8:10${i}::1/64
118 ip -netns ${r[1]} addr add dev eth${i} 172.16.10${i}.254/24
119 ip -netns ${r[1]} -6 addr add dev eth${i} 2001:db8:10${i}::64/64
122 ip -netns ${h[0]} nexthop add id 4 via 172.16.100.254 dev eth0
123 ip -netns ${h[0]} nexthop add id 6 via 2001:db8:100::64 dev eth0
125 # routing from ${h[0]} to h1-h3 and back
128 ip -netns ${h[0]} ro add 172.16.10${i}.0/24 nhid 4
129 ip -netns ${h[$i]} ro add 172.16.100.0/24 via 172.16.10${i}.254
131 ip -netns ${h[0]} -6 ro add 2001:db8:10${i}::/64 nhid 6
132 ip -netns ${h[$i]} -6 ro add 2001:db8:100::/64 via 2001:db8:10${i}::64
135 if [ "$VERBOSE" = "1" ]; then
138 ip -netns ${h[0]} li sh
139 ip -netns ${h[0]} ro sh
140 ip -netns ${h[0]} -6 ro sh
156 run_cmd ip -netns h${hostid} li set eth0 mtu ${mtu}
157 run_cmd ip -netns ${r1} li set eth${hostid} mtu ${mtu}
160 ################################################################################
161 # validate exceptions
163 validate_v4_exception()
168 local dst="172.16.10${i}.1"
169 local h0_ip=172.16.100.1
170 local r1_ip=172.16.100.254
173 if [ ${ping_sz} != "0" ]; then
174 run_cmd ip netns exec ${h0} ping -s ${ping_sz} -c5 -w5 ${dst}
177 if [ "$VERBOSE" = "1" ]; then
179 ip -netns ${h0} ro get ${dst}
180 echo "Searching for:"
181 echo " cache .* mtu ${mtu}"
185 ip -netns ${h0} ro get ${dst} | \
186 grep -q "cache .* mtu ${mtu}"
189 log_test $rc 0 "IPv4: host 0 to host ${i}, mtu ${mtu}"
192 validate_v6_exception()
197 local dst="2001:db8:10${i}::1"
198 local h0_ip=2001:db8:100::1
199 local r1_ip=2001:db8:100::64
202 if [ ${ping_sz} != "0" ]; then
203 run_cmd ip netns exec ${h0} ${ping6} -s ${ping_sz} -c5 -w5 ${dst}
206 if [ "$VERBOSE" = "1" ]; then
208 ip -netns ${h0} -6 ro get ${dst}
209 echo "Searching for:"
210 echo " ${dst}.* via ${r1_ip} dev eth0 src ${h0_ip} .* mtu ${mtu}"
214 ip -netns ${h0} -6 ro get ${dst} | \
215 grep -q "${dst}.* via ${r1_ip} dev eth0 src ${h0_ip} .* mtu ${mtu}"
218 log_test $rc 0 "IPv6: host 0 to host ${i}, mtu ${mtu}"
221 ################################################################################
227 p) PAUSE_ON_FAIL=yes;;
236 cpus=$(cat /sys/devices/system/cpu/online)
237 cpus="$(seq ${cpus/-/ })"
241 # generate a cached route per-cpu
243 run_cmd taskset -c ${c} ip netns exec ${h0} ping -c1 -w1 172.16.10${i}.1
244 [ $? -ne 0 ] && printf "\nERROR: ping to ${h[$i]} failed\n" && ret=1
246 run_cmd taskset -c ${c} ip netns exec ${h0} ${ping6} -c1 -w1 2001:db8:10${i}::1
247 [ $? -ne 0 ] && printf "\nERROR: ping6 to ${h[$i]} failed\n" && ret=1
249 [ $ret -ne 0 ] && break
251 [ $ret -ne 0 ] && break
254 if [ $ret -eq 0 ]; then
255 # generate different exceptions in h0 for h1, h2 and h3
257 validate_v4_exception 1 1300 1350
258 validate_v6_exception 1 1300 1350
262 validate_v4_exception 2 1350 1400
263 validate_v6_exception 2 1350 1400
267 validate_v4_exception 3 1400 1450
268 validate_v6_exception 3 1400 1450
271 validate_v4_exception 1 1300 0
272 validate_v6_exception 1 1300 0
275 validate_v4_exception 2 1350 0
276 validate_v6_exception 2 1350 0
279 validate_v4_exception 3 1400 0
280 validate_v6_exception 3 1400 0
282 # targeted deletes to trigger cleanup paths in kernel
283 ip -netns ${h0} ro del 172.16.102.0/24 nhid 4
284 ip -netns ${h0} -6 ro del 2001:db8:102::/64 nhid 6
286 ip -netns ${h0} nexthop del id 4
287 ip -netns ${h0} nexthop del id 6