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-rwxr-xr-xtools/testing/selftests/net/mptcp/mptcp_join.sh347
1 files changed, 309 insertions, 38 deletions
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 9a191c1a5de8..255793c5ac4f 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -3,8 +3,10 @@
ret=0
sin=""
+sinfail=""
sout=""
cin=""
+cinfail=""
cinsent=""
cout=""
ksft_skip=4
@@ -76,6 +78,14 @@ init()
done
}
+init_shapers()
+{
+ for i in `seq 1 4`; do
+ tc -n $ns1 qdisc add dev ns1eth$i root netem rate 20mbit delay 1
+ tc -n $ns2 qdisc add dev ns2eth$i root netem rate 20mbit delay 1
+ done
+}
+
cleanup_partial()
{
rm -f "$capout"
@@ -88,8 +98,8 @@ cleanup_partial()
cleanup()
{
- rm -f "$cin" "$cout"
- rm -f "$sin" "$sout" "$cinsent"
+ rm -f "$cin" "$cout" "$sinfail"
+ rm -f "$sin" "$sout" "$cinsent" "$cinfail"
cleanup_partial
}
@@ -211,11 +221,15 @@ link_failure()
{
ns="$1"
- l=$((RANDOM%4))
- l=$((l+1))
+ if [ -z "$FAILING_LINKS" ]; then
+ l=$((RANDOM%4))
+ FAILING_LINKS=$((l+1))
+ fi
- veth="ns1eth$l"
- ip -net "$ns" link set "$veth" down
+ for l in $FAILING_LINKS; do
+ veth="ns1eth$l"
+ ip -net "$ns" link set "$veth" down
+ done
}
# $1: IP address
@@ -280,10 +294,17 @@ do_transfer()
local_addr="0.0.0.0"
fi
- timeout ${timeout_test} \
- ip netns exec ${listener_ns} \
- $mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
- ${local_addr} < "$sin" > "$sout" &
+ if [ "$test_link_fail" -eq 2 ];then
+ timeout ${timeout_test} \
+ ip netns exec ${listener_ns} \
+ $mptcp_connect -t ${timeout_poll} -l -p $port -s ${cl_proto} \
+ ${local_addr} < "$sinfail" > "$sout" &
+ else
+ timeout ${timeout_test} \
+ ip netns exec ${listener_ns} \
+ $mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
+ ${local_addr} < "$sin" > "$sout" &
+ fi
spid=$!
sleep 1
@@ -294,7 +315,7 @@ do_transfer()
$mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
$connect_addr < "$cin" > "$cout" &
else
- ( cat "$cin" ; sleep 2; link_failure $listener_ns ; cat "$cin" ) | \
+ ( cat "$cinfail" ; sleep 2; link_failure $listener_ns ; cat "$cinfail" ) | \
tee "$cinsent" | \
timeout ${timeout_test} \
ip netns exec ${connector_ns} \
@@ -323,17 +344,18 @@ do_transfer()
let rm_nr_ns1=-addr_nr_ns1
if [ $rm_nr_ns1 -lt 8 ]; then
counter=1
+ pos=1
dump=(`ip netns exec ${listener_ns} ./pm_nl_ctl dump`)
if [ ${#dump[@]} -gt 0 ]; then
- id=${dump[1]}
sleep 1
while [ $counter -le $rm_nr_ns1 ]
do
+ id=${dump[$pos]}
ip netns exec ${listener_ns} ./pm_nl_ctl del $id
sleep 1
let counter+=1
- let id+=1
+ let pos+=5
done
fi
elif [ $rm_nr_ns1 -eq 8 ]; then
@@ -345,6 +367,12 @@ do_transfer()
fi
fi
+ flags="subflow"
+ if [[ "${addr_nr_ns2}" = "fullmesh_"* ]]; then
+ flags="${flags},fullmesh"
+ addr_nr_ns2=${addr_nr_ns2:9}
+ fi
+
if [ $addr_nr_ns2 -gt 0 ]; then
let add_nr_ns2=addr_nr_ns2
counter=3
@@ -356,7 +384,7 @@ do_transfer()
else
addr="10.0.$counter.2"
fi
- ip netns exec $ns2 ./pm_nl_ctl add $addr flags subflow
+ ip netns exec $ns2 ./pm_nl_ctl add $addr flags $flags
let counter+=1
let add_nr_ns2-=1
done
@@ -365,17 +393,18 @@ do_transfer()
let rm_nr_ns2=-addr_nr_ns2
if [ $rm_nr_ns2 -lt 8 ]; then
counter=1
+ pos=1
dump=(`ip netns exec ${connector_ns} ./pm_nl_ctl dump`)
if [ ${#dump[@]} -gt 0 ]; then
- id=${dump[1]}
sleep 1
while [ $counter -le $rm_nr_ns2 ]
do
+ id=${dump[$pos]}
ip netns exec ${connector_ns} ./pm_nl_ctl del $id
sleep 1
let counter+=1
- let id+=1
+ let pos+=5
done
fi
elif [ $rm_nr_ns2 -eq 8 ]; then
@@ -434,7 +463,11 @@ do_transfer()
return 1
fi
- check_transfer $sin $cout "file received by client"
+ if [ "$test_link_fail" -eq 2 ];then
+ check_transfer $sinfail $cout "file received by client"
+ else
+ check_transfer $sin $cout "file received by client"
+ fi
retc=$?
if [ "$test_link_fail" -eq 0 ];then
check_transfer $cin $sout "file received by server"
@@ -477,29 +510,33 @@ run_tests()
lret=0
oldin=""
- if [ "$test_linkfail" -eq 1 ];then
- size=$((RANDOM%1024))
+ # create the input file for the failure test when
+ # the first failure test run
+ if [ "$test_linkfail" -ne 0 -a -z "$cinfail" ]; then
+ # the client file must be considerably larger
+ # of the maximum expected cwin value, or the
+ # link utilization will be not predicable
+ size=$((RANDOM%2))
size=$((size+1))
- size=$((size*128))
+ size=$((size*8192))
+ size=$((size + ( $RANDOM % 8192) ))
- oldin=$(mktemp)
- cp "$cin" "$oldin"
- make_file "$cin" "client" $size
+ cinfail=$(mktemp)
+ make_file "$cinfail" "client" $size
fi
- do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP ${connect_addr} \
- ${test_linkfail} ${addr_nr_ns1} ${addr_nr_ns2} ${speed} ${bkup}
- lret=$?
+ if [ "$test_linkfail" -eq 2 -a -z "$sinfail" ]; then
+ size=$((RANDOM%16))
+ size=$((size+1))
+ size=$((size*2048))
- if [ "$test_linkfail" -eq 1 ];then
- cp "$oldin" "$cin"
- rm -f "$oldin"
+ sinfail=$(mktemp)
+ make_file "$sinfail" "server" $size
fi
- if [ $lret -ne 0 ]; then
- ret=$lret
- return
- fi
+ do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP ${connect_addr} \
+ ${test_linkfail} ${addr_nr_ns1} ${addr_nr_ns2} ${speed} ${bkup}
+ lret=$?
}
chk_csum_nr()
@@ -541,6 +578,43 @@ chk_csum_nr()
fi
}
+chk_fail_nr()
+{
+ local mp_fail_nr_tx=$1
+ local mp_fail_nr_rx=$2
+ local count
+ local dump_stats
+
+ printf "%-39s %s" " " "ftx"
+ count=`ip netns exec $ns1 nstat -as | grep MPTcpExtMPFailTx | awk '{print $2}'`
+ [ -z "$count" ] && count=0
+ if [ "$count" != "$mp_fail_nr_tx" ]; then
+ echo "[fail] got $count MP_FAIL[s] TX expected $mp_fail_nr_tx"
+ ret=1
+ dump_stats=1
+ else
+ echo -n "[ ok ]"
+ fi
+
+ echo -n " - frx "
+ count=`ip netns exec $ns2 nstat -as | grep MPTcpExtMPFailRx | awk '{print $2}'`
+ [ -z "$count" ] && count=0
+ if [ "$count" != "$mp_fail_nr_rx" ]; then
+ echo "[fail] got $count MP_FAIL[s] RX expected $mp_fail_nr_rx"
+ ret=1
+ dump_stats=1
+ else
+ echo "[ ok ]"
+ fi
+
+ if [ "${dump_stats}" = 1 ]; then
+ echo Server ns stats
+ ip netns exec $ns1 nstat -as | grep MPTcp
+ echo Client ns stats
+ ip netns exec $ns2 nstat -as | grep MPTcp
+ fi
+}
+
chk_join_nr()
{
local msg="$1"
@@ -590,6 +664,47 @@ chk_join_nr()
fi
if [ $checksum -eq 1 ]; then
chk_csum_nr
+ chk_fail_nr 0 0
+ fi
+}
+
+# a negative value for 'stale_max' means no upper bound:
+# for bidirectional transfer, if one peer sleep for a while
+# - as these tests do - we can have a quite high number of
+# stale/recover conversions, proportional to
+# sleep duration/ MPTCP-level RTX interval.
+chk_stale_nr()
+{
+ local ns=$1
+ local stale_min=$2
+ local stale_max=$3
+ local stale_delta=$4
+ local dump_stats
+ local stale_nr
+ local recover_nr
+
+ printf "%-39s %-18s" " " "stale"
+ stale_nr=`ip netns exec $ns nstat -as | grep MPTcpExtSubflowStale | awk '{print $2}'`
+ [ -z "$stale_nr" ] && stale_nr=0
+ recover_nr=`ip netns exec $ns nstat -as | grep MPTcpExtSubflowRecover | awk '{print $2}'`
+ [ -z "$recover_nr" ] && recover_nr=0
+
+ if [ $stale_nr -lt $stale_min ] ||
+ [ $stale_max -gt 0 -a $stale_nr -gt $stale_max ] ||
+ [ $((stale_nr - $recover_nr)) -ne $stale_delta ]; then
+ echo "[fail] got $stale_nr stale[s] $recover_nr recover[s], " \
+ " expected stale in range [$stale_min..$stale_max]," \
+ " stale-recover delta $stale_delta "
+ ret=1
+ dump_stats=1
+ else
+ echo "[ ok ]"
+ fi
+
+ if [ "${dump_stats}" = 1 ]; then
+ echo $ns stats
+ ip netns exec $ns ip -s link show
+ ip netns exec $ns nstat -as | grep MPTcp
fi
}
@@ -801,6 +916,27 @@ chk_prio_nr()
fi
}
+chk_link_usage()
+{
+ local ns=$1
+ local link=$2
+ local out=$3
+ local expected_rate=$4
+ local tx_link=`ip netns exec $ns cat /sys/class/net/$link/statistics/tx_bytes`
+ local tx_total=`ls -l $out | awk '{print $5}'`
+ local tx_rate=$((tx_link * 100 / $tx_total))
+ local tolerance=5
+
+ printf "%-39s %-18s" " " "link usage"
+ if [ $tx_rate -lt $((expected_rate - $tolerance)) -o \
+ $tx_rate -gt $((expected_rate + $tolerance)) ]; then
+ echo "[fail] got $tx_rate% usage, expected $expected_rate%"
+ ret=1
+ else
+ echo "[ ok ]"
+ fi
+}
+
subflows_tests()
{
reset
@@ -918,20 +1054,101 @@ signal_address_tests()
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr "signal invalid addresses" 1 1 1
chk_add_nr 3 3
+
+ # signal addresses race test
+ reset
+ ip netns exec $ns1 ./pm_nl_ctl limits 4 4
+ ip netns exec $ns2 ./pm_nl_ctl limits 4 4
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.1 flags signal
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.3.1 flags signal
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.4.1 flags signal
+ ip netns exec $ns2 ./pm_nl_ctl add 10.0.1.2 flags signal
+ ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags signal
+ ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags signal
+ ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 flags signal
+ run_tests $ns1 $ns2 10.0.1.1
+ chk_add_nr 4 4
}
link_failure_tests()
{
# accept and use add_addr with additional subflows and link loss
reset
+
+ # without any b/w limit each veth could spool the packets and get
+ # them acked at xmit time, so that the corresponding subflow will
+ # have almost always no outstanding pkts, the scheduler will pick
+ # always the first subflow and we will have hard time testing
+ # active backup and link switch-over.
+ # Let's set some arbitrary (low) virtual link limits.
+ init_shapers
ip netns exec $ns1 ./pm_nl_ctl limits 0 3
- ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags signal
ip netns exec $ns2 ./pm_nl_ctl limits 1 3
- ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
- ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 flags subflow
+ ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 dev ns2eth3 flags subflow
+ ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 dev ns2eth4 flags subflow
run_tests $ns1 $ns2 10.0.1.1 1
chk_join_nr "multiple flows, signal, link failure" 3 3 3
chk_add_nr 1 1
+ chk_stale_nr $ns2 1 5 1
+
+ # accept and use add_addr with additional subflows and link loss
+ # for bidirectional transfer
+ reset
+ init_shapers
+ ip netns exec $ns1 ./pm_nl_ctl limits 0 3
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags signal
+ ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+ ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 dev ns2eth3 flags subflow
+ ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 dev ns2eth4 flags subflow
+ run_tests $ns1 $ns2 10.0.1.1 2
+ chk_join_nr "multi flows, signal, bidi, link fail" 3 3 3
+ chk_add_nr 1 1
+ chk_stale_nr $ns2 1 -1 1
+
+ # 2 subflows plus 1 backup subflow with a lossy link, backup
+ # will never be used
+ reset
+ init_shapers
+ ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags signal
+ ip netns exec $ns2 ./pm_nl_ctl limits 1 2
+ export FAILING_LINKS="1"
+ ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 dev ns2eth3 flags subflow,backup
+ run_tests $ns1 $ns2 10.0.1.1 1
+ chk_join_nr "backup subflow unused, link failure" 2 2 2
+ chk_add_nr 1 1
+ chk_link_usage $ns2 ns2eth3 $cinsent 0
+
+ # 2 lossy links after half transfer, backup will get half of
+ # the traffic
+ reset
+ init_shapers
+ ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags signal
+ ip netns exec $ns2 ./pm_nl_ctl limits 1 2
+ ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 dev ns2eth3 flags subflow,backup
+ export FAILING_LINKS="1 2"
+ run_tests $ns1 $ns2 10.0.1.1 1
+ chk_join_nr "backup flow used, multi links fail" 2 2 2
+ chk_add_nr 1 1
+ chk_stale_nr $ns2 2 4 2
+ chk_link_usage $ns2 ns2eth3 $cinsent 50
+
+ # use a backup subflow with the first subflow on a lossy link
+ # for bidirectional transfer
+ reset
+ init_shapers
+ ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags signal
+ ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+ ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 dev ns2eth3 flags subflow,backup
+ run_tests $ns1 $ns2 10.0.1.1 2
+ chk_join_nr "backup flow used, bidi, link failure" 2 2 2
+ chk_add_nr 1 1
+ chk_stale_nr $ns2 1 -1 2
+ chk_link_usage $ns2 ns2eth3 $cinsent 50
}
add_addr_timeout_tests()
@@ -1409,7 +1626,7 @@ syncookies_tests()
ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
- chk_join_nr "subflows limited by server w cookies" 2 2 1
+ chk_join_nr "subflows limited by server w cookies" 2 1 1
# test signal address with cookies
reset_with_cookies
@@ -1530,6 +1747,55 @@ deny_join_id0_tests()
chk_join_nr "subflow and address allow join id0 2" 1 1 1
}
+fullmesh_tests()
+{
+ # fullmesh 1
+ # 2 fullmesh addrs in ns2, added before the connection,
+ # 1 non-fullmesh addr in ns1, added during the connection.
+ reset
+ ip netns exec $ns1 ./pm_nl_ctl limits 0 4
+ ip netns exec $ns2 ./pm_nl_ctl limits 1 4
+ ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow,fullmesh
+ ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow,fullmesh
+ run_tests $ns1 $ns2 10.0.1.1 0 1 0 slow
+ chk_join_nr "fullmesh test 2x1" 4 4 4
+ chk_add_nr 1 1
+
+ # fullmesh 2
+ # 1 non-fullmesh addr in ns1, added before the connection,
+ # 1 fullmesh addr in ns2, added during the connection.
+ reset
+ ip netns exec $ns1 ./pm_nl_ctl limits 1 3
+ ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+ run_tests $ns1 $ns2 10.0.1.1 0 0 fullmesh_1 slow
+ chk_join_nr "fullmesh test 1x1" 3 3 3
+ chk_add_nr 1 1
+
+ # fullmesh 3
+ # 1 non-fullmesh addr in ns1, added before the connection,
+ # 2 fullmesh addrs in ns2, added during the connection.
+ reset
+ ip netns exec $ns1 ./pm_nl_ctl limits 2 5
+ ip netns exec $ns2 ./pm_nl_ctl limits 1 5
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+ run_tests $ns1 $ns2 10.0.1.1 0 0 fullmesh_2 slow
+ chk_join_nr "fullmesh test 1x2" 5 5 5
+ chk_add_nr 1 1
+
+ # fullmesh 4
+ # 1 non-fullmesh addr in ns1, added before the connection,
+ # 2 fullmesh addrs in ns2, added during the connection,
+ # limit max_subflows to 4.
+ reset
+ ip netns exec $ns1 ./pm_nl_ctl limits 2 4
+ ip netns exec $ns2 ./pm_nl_ctl limits 1 4
+ ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+ run_tests $ns1 $ns2 10.0.1.1 0 0 fullmesh_2 slow
+ chk_join_nr "fullmesh test 1x2, limited" 4 4 4
+ chk_add_nr 1 1
+}
+
all_tests()
{
subflows_tests
@@ -1545,6 +1811,7 @@ all_tests()
syncookies_tests
checksum_tests
deny_join_id0_tests
+ fullmesh_tests
}
usage()
@@ -1563,6 +1830,7 @@ usage()
echo " -k syncookies_tests"
echo " -S checksum_tests"
echo " -d deny_join_id0_tests"
+ echo " -m fullmesh_tests"
echo " -c capture pcap files"
echo " -C enable data checksum"
echo " -h help"
@@ -1598,7 +1866,7 @@ if [ $do_all_tests -eq 1 ]; then
exit $ret
fi
-while getopts 'fsltra64bpkdchCS' opt; do
+while getopts 'fsltra64bpkdmchCS' opt; do
case $opt in
f)
subflows_tests
@@ -1639,6 +1907,9 @@ while getopts 'fsltra64bpkdchCS' opt; do
d)
deny_join_id0_tests
;;
+ m)
+ fullmesh_tests
+ ;;
c)
;;
C)
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-20 09:49:41 +0000