2 # SPDX-License-Identifier: GPL-2.0
4 rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
16 echo "Usage: $0 [ -b ] [ -c ] [ -d ]"
17 echo -e "\t-b: bail out after first error, otherwise runs al testcases"
18 echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)"
19 echo -e "\t-d: debug this script"
29 for netns in "$ns1" "$ns2" "$ns3";do
34 ip -Version > /dev/null 2>&1
36 echo "SKIP: Could not run test without ip tool"
41 # ns1eth1 ns2eth1 ns2eth3 ns3eth1
54 dd if=/dev/zero of=$small bs=4096 count=20 >/dev/null 2>&1
55 dd if=/dev/zero of=$large bs=4096 count=$((size / 4096)) >/dev/null 2>&1
59 for i in "$ns1" "$ns2" "$ns3";do
60 ip netns add $i || exit $ksft_skip
61 ip -net $i link set lo up
64 ip link add ns1eth1 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
65 ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth2 netns "$ns2"
66 ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth1 netns "$ns3"
68 ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth1
69 ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth1 nodad
70 ip -net "$ns1" link set ns1eth1 up mtu 1500
71 ip -net "$ns1" route add default via 10.0.1.2
72 ip -net "$ns1" route add default via dead:beef:1::2
74 ip -net "$ns1" addr add 10.0.2.1/24 dev ns1eth2
75 ip -net "$ns1" addr add dead:beef:2::1/64 dev ns1eth2 nodad
76 ip -net "$ns1" link set ns1eth2 up mtu 1500
77 ip -net "$ns1" route add default via 10.0.2.2 metric 101
78 ip -net "$ns1" route add default via dead:beef:2::2 metric 101
80 ip netns exec "$ns1" ./pm_nl_ctl limits 1 1
81 ip netns exec "$ns1" ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags subflow
82 ip netns exec "$ns1" sysctl -q net.ipv4.conf.all.rp_filter=0
84 ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
85 ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
86 ip -net "$ns2" link set ns2eth1 up mtu 1500
88 ip -net "$ns2" addr add 10.0.2.2/24 dev ns2eth2
89 ip -net "$ns2" addr add dead:beef:2::2/64 dev ns2eth2 nodad
90 ip -net "$ns2" link set ns2eth2 up mtu 1500
92 ip -net "$ns2" addr add 10.0.3.2/24 dev ns2eth3
93 ip -net "$ns2" addr add dead:beef:3::2/64 dev ns2eth3 nodad
94 ip -net "$ns2" link set ns2eth3 up mtu 1500
95 ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1
96 ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1
98 ip -net "$ns3" addr add 10.0.3.3/24 dev ns3eth1
99 ip -net "$ns3" addr add dead:beef:3::3/64 dev ns3eth1 nodad
100 ip -net "$ns3" link set ns3eth1 up mtu 1500
101 ip -net "$ns3" route add default via 10.0.3.2
102 ip -net "$ns3" route add default via dead:beef:3::2
104 ip netns exec "$ns3" ./pm_nl_ctl limits 1 1
108 wait_local_port_listen()
110 local listener_ns="${1}"
115 port_hex="$(printf "%04X" "${port}")"
116 for i in $(seq 10); do
117 ip netns exec "${listener_ns}" cat /proc/net/tcp* | \
118 awk "BEGIN {rc=1} {if (\$2 ~ /:${port_hex}\$/ && \$4 ~ /0A/) {rc=0; exit}} END {exit rc}" &&
130 port=$((10000+$test_cnt))
131 test_cnt=$((test_cnt+1))
138 addr_port=$(printf "%s:%d" ${connect_addr} ${port})
142 if [ -z $SUDO_USER ] ; then
145 capuser="-Z $SUDO_USER"
148 local capfile="${rndh}-${port}"
149 local capopt="-i any -s 65535 -B 32768 ${capuser}"
151 ip netns exec ${ns3} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 &
152 local cappid_listener=$!
154 ip netns exec ${ns1} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 &
155 local cappid_connector=$!
160 ip netns exec ${ns3} ./mptcp_connect -jt $timeout -l -p $port 0.0.0.0 < "$sin" > "$sout" &
163 wait_local_port_listen "${ns3}" "${port}"
167 ip netns exec ${ns1} ./mptcp_connect -jt $timeout -p $port 10.0.3.3 < "$cin" > "$cout" &
180 kill ${cappid_listener}
181 kill ${cappid_connector}
185 duration=$((stop-start))
187 cmp $sin $cout > /dev/null 2>&1
189 cmp $cin $sout > /dev/null 2>&1
192 printf "%16s" "$duration max $max_time "
193 if [ $retc -eq 0 ] && [ $rets -eq 0 ] && \
194 [ $cmpc -eq 0 ] && [ $cmps -eq 0 ] && \
195 [ $duration -lt $max_time ]; then
202 echo "client exit code $retc, server $rets" 1>&2
203 echo -e "\nnetns ${ns3} socket stat for $port:" 1>&2
204 ip netns exec ${ns3} ss -nita 1>&2 -o "sport = :$port"
205 echo -e "\nnetns ${ns1} socket stat for $port:" 1>&2
206 ip netns exec ${ns1} ss -nita 1>&2 -o "dport = :$port"
225 [ $delay1 -gt 0 ] && delay1="delay $delay1" || delay1=""
226 [ $delay2 -gt 0 ] && delay2="delay $delay2" || delay2=""
228 for dev in ns1eth1 ns1eth2; do
229 tc -n $ns1 qdisc del dev $dev root >/dev/null 2>&1
231 for dev in ns2eth1 ns2eth2; do
232 tc -n $ns2 qdisc del dev $dev root >/dev/null 2>&1
234 tc -n $ns1 qdisc add dev ns1eth1 root netem rate ${rate1}mbit $delay1
235 tc -n $ns1 qdisc add dev ns1eth2 root netem rate ${rate2}mbit $delay2
236 tc -n $ns2 qdisc add dev ns2eth1 root netem rate ${rate1}mbit $delay1
237 tc -n $ns2 qdisc add dev ns2eth2 root netem rate ${rate2}mbit $delay2
239 # time is measure in ms
240 local time=$((size * 8 * 1000 / (( $rate1 + $rate2) * 1024 *1024) ))
242 # mptcp_connect will do some sleeps to allow the mp_join handshake
244 time=$((time + 1350))
246 printf "%-50s" "$msg"
247 do_transfer $small $large $((time * 11 / 10))
249 if [ $lret -ne 0 ]; then
251 [ $bail -eq 0 ] || exit $ret
254 printf "%-50s" "$msg - reverse direction"
255 do_transfer $large $small $((time * 11 / 10))
257 if [ $lret -ne 0 ]; then
259 [ $bail -eq 0 ] || exit $ret
263 while getopts "bcdh" option;do
286 run_test 10 10 0 0 "balanced bwidth"
287 run_test 10 10 1 50 "balanced bwidth with unbalanced delay"
289 # we still need some additional infrastructure to pass the following test-cases
290 # run_test 30 10 0 0 "unbalanced bwidth"
291 # run_test 30 10 1 50 "unbalanced bwidth with unbalanced delay"
292 # run_test 30 10 50 1 "unbalanced bwidth with opposed, unbalanced delay"