2 # SPDX-License-Identifier: GPL-2.0
4 rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
11 timeout_test=$((timeout_poll * 2 + 1))
17 echo "Usage: $0 [ -b ] [ -c ] [ -d ]"
18 echo -e "\t-b: bail out after first error, otherwise runs al testcases"
19 echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)"
20 echo -e "\t-d: debug this script"
26 rm -f "$large" "$small"
30 for netns in "$ns1" "$ns2" "$ns3";do
35 ip -Version > /dev/null 2>&1
37 echo "SKIP: Could not run test without ip tool"
42 # ns1eth1 ns2eth1 ns2eth3 ns3eth1
55 dd if=/dev/zero of=$small bs=4096 count=20 >/dev/null 2>&1
56 dd if=/dev/zero of=$large bs=4096 count=$((size / 4096)) >/dev/null 2>&1
60 for i in "$ns1" "$ns2" "$ns3";do
61 ip netns add $i || exit $ksft_skip
62 ip -net $i link set lo up
63 ip netns exec $i sysctl -q net.ipv4.conf.all.rp_filter=0
64 ip netns exec $i sysctl -q net.ipv4.conf.default.rp_filter=0
67 ip link add ns1eth1 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
68 ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth2 netns "$ns2"
69 ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth1 netns "$ns3"
71 ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth1
72 ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth1 nodad
73 ip -net "$ns1" link set ns1eth1 up mtu 1500
74 ip -net "$ns1" route add default via 10.0.1.2
75 ip -net "$ns1" route add default via dead:beef:1::2
77 ip -net "$ns1" addr add 10.0.2.1/24 dev ns1eth2
78 ip -net "$ns1" addr add dead:beef:2::1/64 dev ns1eth2 nodad
79 ip -net "$ns1" link set ns1eth2 up mtu 1500
80 ip -net "$ns1" route add default via 10.0.2.2 metric 101
81 ip -net "$ns1" route add default via dead:beef:2::2 metric 101
83 ip netns exec "$ns1" ./pm_nl_ctl limits 1 1
84 ip netns exec "$ns1" ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags subflow
86 ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
87 ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
88 ip -net "$ns2" link set ns2eth1 up mtu 1500
90 ip -net "$ns2" addr add 10.0.2.2/24 dev ns2eth2
91 ip -net "$ns2" addr add dead:beef:2::2/64 dev ns2eth2 nodad
92 ip -net "$ns2" link set ns2eth2 up mtu 1500
94 ip -net "$ns2" addr add 10.0.3.2/24 dev ns2eth3
95 ip -net "$ns2" addr add dead:beef:3::2/64 dev ns2eth3 nodad
96 ip -net "$ns2" link set ns2eth3 up mtu 1500
97 ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1
98 ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1
100 ip -net "$ns3" addr add 10.0.3.3/24 dev ns3eth1
101 ip -net "$ns3" addr add dead:beef:3::3/64 dev ns3eth1 nodad
102 ip -net "$ns3" link set ns3eth1 up mtu 1500
103 ip -net "$ns3" route add default via 10.0.3.2
104 ip -net "$ns3" route add default via dead:beef:3::2
106 ip netns exec "$ns3" ./pm_nl_ctl limits 1 1
110 wait_local_port_listen()
112 local listener_ns="${1}"
117 port_hex="$(printf "%04X" "${port}")"
118 for i in $(seq 10); do
119 ip netns exec "${listener_ns}" cat /proc/net/tcp* | \
120 awk "BEGIN {rc=1} {if (\$2 ~ /:${port_hex}\$/ && \$4 ~ /0A/) {rc=0; exit}} END {exit rc}" &&
132 port=$((10000+$test_cnt))
133 test_cnt=$((test_cnt+1))
140 addr_port=$(printf "%s:%d" ${connect_addr} ${port})
144 if [ -z $SUDO_USER ] ; then
147 capuser="-Z $SUDO_USER"
150 local capfile="${rndh}-${port}"
151 local capopt="-i any -s 65535 -B 32768 ${capuser}"
153 ip netns exec ${ns3} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 &
154 local cappid_listener=$!
156 ip netns exec ${ns1} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 &
157 local cappid_connector=$!
162 timeout ${timeout_test} \
163 ip netns exec ${ns3} \
164 ./mptcp_connect -jt ${timeout_poll} -l -p $port \
165 0.0.0.0 < "$sin" > "$sout" &
168 wait_local_port_listen "${ns3}" "${port}"
172 timeout ${timeout_test} \
173 ip netns exec ${ns1} \
174 ./mptcp_connect -jt ${timeout_poll} -p $port \
175 10.0.3.3 < "$cin" > "$cout" &
188 kill ${cappid_listener}
189 kill ${cappid_connector}
193 duration=$((stop-start))
195 cmp $sin $cout > /dev/null 2>&1
197 cmp $cin $sout > /dev/null 2>&1
200 printf "%16s" "$duration max $max_time "
201 if [ $retc -eq 0 ] && [ $rets -eq 0 ] && \
202 [ $cmpc -eq 0 ] && [ $cmps -eq 0 ] && \
203 [ $duration -lt $max_time ]; then
210 echo "client exit code $retc, server $rets" 1>&2
211 echo -e "\nnetns ${ns3} socket stat for $port:" 1>&2
212 ip netns exec ${ns3} ss -nita 1>&2 -o "sport = :$port"
213 echo -e "\nnetns ${ns1} socket stat for $port:" 1>&2
214 ip netns exec ${ns1} ss -nita 1>&2 -o "dport = :$port"
233 [ $delay1 -gt 0 ] && delay1="delay $delay1" || delay1=""
234 [ $delay2 -gt 0 ] && delay2="delay $delay2" || delay2=""
236 for dev in ns1eth1 ns1eth2; do
237 tc -n $ns1 qdisc del dev $dev root >/dev/null 2>&1
239 for dev in ns2eth1 ns2eth2; do
240 tc -n $ns2 qdisc del dev $dev root >/dev/null 2>&1
242 tc -n $ns1 qdisc add dev ns1eth1 root netem rate ${rate1}mbit $delay1
243 tc -n $ns1 qdisc add dev ns1eth2 root netem rate ${rate2}mbit $delay2
244 tc -n $ns2 qdisc add dev ns2eth1 root netem rate ${rate1}mbit $delay1
245 tc -n $ns2 qdisc add dev ns2eth2 root netem rate ${rate2}mbit $delay2
247 # time is measure in ms
248 local time=$((size * 8 * 1000 / (( $rate1 + $rate2) * 1024 *1024) ))
250 # mptcp_connect will do some sleeps to allow the mp_join handshake
252 time=$((time + 1350))
254 printf "%-50s" "$msg"
255 do_transfer $small $large $((time * 11 / 10))
257 if [ $lret -ne 0 ]; then
259 [ $bail -eq 0 ] || exit $ret
262 printf "%-50s" "$msg - reverse direction"
263 do_transfer $large $small $((time * 11 / 10))
265 if [ $lret -ne 0 ]; then
267 [ $bail -eq 0 ] || exit $ret
271 while getopts "bcdh" option;do
294 run_test 10 10 0 0 "balanced bwidth"
295 run_test 10 10 1 50 "balanced bwidth with unbalanced delay"
297 # we still need some additional infrastructure to pass the following test-cases
298 run_test 30 10 0 0 "unbalanced bwidth"
299 run_test 30 10 1 50 "unbalanced bwidth with unbalanced delay"
300 run_test 30 10 50 1 "unbalanced bwidth with opposed, unbalanced delay"