#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Double quotes to prevent globbing and word splitting is recommended in new
# code but we accept it, especially because there were too many before having
# address all other issues detected by shellcheck.
#shellcheck disable=SC2086
. "$(dirname "${0}")/mptcp_lib.sh"
time_start=$(date +%s)
optstring="S:R:d:e:l:r:h4cm:f:tC"
ret=0
final_ret=0
sin=""
sout=""
cin_disconnect=""
cin=""
cout=""
capture=false
timeout_poll=30
timeout_test=$((timeout_poll * 2 + 1))
ipv6=true
ethtool_random_on=true
tc_delay="$((RANDOM%50))"
tc_loss=$((RANDOM%101))
testmode=""
sndbuf=0
rcvbuf=0
options_log=true
do_tcp=0
checksum=false
filesize=0
connect_per_transfer=1
port=$((10000 - 1))
if [ $tc_loss -eq 100 ];then
tc_loss=1%
elif [ $tc_loss -ge 10 ]; then
tc_loss=0.$tc_loss%
elif [ $tc_loss -ge 1 ]; then
tc_loss=0.0$tc_loss%
else
tc_loss=""
fi
usage() {
echo "Usage: $0 [ -a ]"
echo -e "\t-d: tc/netem delay in milliseconds, e.g. \"-d 10\" (default random)"
echo -e "\t-l: tc/netem loss percentage, e.g. \"-l 0.02\" (default random)"
echo -e "\t-r: tc/netem reorder mode, e.g. \"-r 25% 50% gap 5\", use "-r 0" to disable reordering (default random)"
echo -e "\t-e: ethtool features to disable, e.g.: \"-e tso -e gso\" (default: randomly disable any of tso/gso/gro)"
echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)"
echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)"
echo -e "\t-f: size of file to transfer in bytes (default random)"
echo -e "\t-S: set sndbuf value (default: use kernel default)"
echo -e "\t-R: set rcvbuf value (default: use kernel default)"
echo -e "\t-m: test mode (poll, sendfile; default: poll)"
echo -e "\t-t: also run tests with TCP (use twice to non-fallback tcp)"
echo -e "\t-C: enable the MPTCP data checksum"
}
while getopts "$optstring" option;do
case "$option" in
"h")
usage $0
exit ${KSFT_PASS}
;;
"d")
if [ $OPTARG -ge 0 ];then
tc_delay="$OPTARG"
else
echo "-d requires numeric argument, got \"$OPTARG\"" 1>&2
exit ${KSFT_FAIL}
fi
;;
"e")
ethtool_args="$ethtool_args $OPTARG off"
ethtool_random_on=false
;;
"l")
tc_loss="$OPTARG"
;;
"r")
tc_reorder="$OPTARG"
;;
"4")
ipv6=false
;;
"c")
capture=true
;;
"S")
if [ $OPTARG -ge 0 ];then
sndbuf="$OPTARG"
else
echo "-S requires numeric argument, got \"$OPTARG\"" 1>&2
exit ${KSFT_FAIL}
fi
;;
"R")
if [ $OPTARG -ge 0 ];then
rcvbuf="$OPTARG"
else
echo "-R requires numeric argument, got \"$OPTARG\"" 1>&2
exit ${KSFT_FAIL}
fi
;;
"m")
testmode="$OPTARG"
;;
"f")
filesize="$OPTARG"
;;
"t")
do_tcp=$((do_tcp+1))
;;
"C")
checksum=true
;;
"?")
usage $0
exit ${KSFT_FAIL}
;;
esac
done
ns1=""
ns2=""
ns3=""
ns4=""
TEST_GROUP=""
# This function is used in the cleanup trap
#shellcheck disable=SC2317
cleanup()
{
rm -f "$cin_disconnect" "$cout_disconnect"
rm -f "$cin" "$cout"
rm -f "$sin" "$sout"
rm -f "$capout"
mptcp_lib_ns_exit "${ns1}" "${ns2}" "${ns3}" "${ns4}"
}
mptcp_lib_check_mptcp
mptcp_lib_check_kallsyms
mptcp_lib_check_tools ip tc
sin=$(mktemp)
sout=$(mktemp)
cin=$(mktemp)
cout=$(mktemp)
capout=$(mktemp)
cin_disconnect="$cin".disconnect
cout_disconnect="$cout".disconnect
trap cleanup EXIT
mptcp_lib_ns_init ns1 ns2 ns3 ns4
# "$ns1" ns2 ns3 ns4
# ns1eth2 ns2eth1 ns2eth3 ns3eth2 ns3eth4 ns4eth3
# - drop 1% -> reorder 25%
# <- TSO off -
ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth2 netns "$ns3"
ip link add ns3eth4 netns "$ns3" type veth peer name ns4eth3 netns "$ns4"
ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2
ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad
ip -net "$ns1" link set ns1eth2 up
ip -net "$ns1" route add default via 10.0.1.2
ip -net "$ns1" route add default via dead:beef:1::2
ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
ip -net "$ns2" link set ns2eth1 up
ip -net "$ns2" addr add 10.0.2.1/24 dev ns2eth3
ip -net "$ns2" addr add dead:beef:2::1/64 dev ns2eth3 nodad
ip -net "$ns2" link set ns2eth3 up
ip -net "$ns2" route add default via 10.0.2.2
ip -net "$ns2" route add default via dead:beef:2::2
ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1
ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1
ip -net "$ns3" addr add 10.0.2.2/24 dev ns3eth2
ip -net "$ns3" addr add dead:beef:2::2/64 dev ns3eth2 nodad
ip -net "$ns3" link set ns3eth2 up
ip -net "$ns3" addr add 10.0.3.2/24 dev ns3eth4
ip -net "$ns3" addr add dead:beef:3::2/64 dev ns3eth4 nodad
ip -net "$ns3" link set ns3eth4 up
ip -net "$ns3" route add default via 10.0.2.1
ip -net "$ns3" route add default via dead:beef:2::1
ip netns exec "$ns3" sysctl -q net.ipv4.ip_forward=1
ip netns exec "$ns3" sysctl -q net.ipv6.conf.all.forwarding=1
ip -net "$ns4" addr add 10.0.3.1/24 dev ns4eth3
ip -net "$ns4" addr add dead:beef:3::1/64 dev ns4eth3 nodad
ip -net "$ns4" link set ns4eth3 up
ip -net "$ns4" route add default via 10.0.3.2
ip -net "$ns4" route add default via dead:beef:3::2
if $checksum; then
for i in "$ns1" "$ns2" "$ns3" "$ns4";do
ip netns exec $i sysctl -q net.mptcp.checksum_enabled=1
done
fi
set_ethtool_flags() {
local ns="$1"
local dev="$2"
local flags="$3"
if ip netns exec $ns ethtool -K $dev $flags 2>/dev/null; then
mptcp_lib_pr_info "set $ns dev $dev: ethtool -K $flags"
fi
}
set_random_ethtool_flags() {
local flags=""
local r=$RANDOM
local pick1=$((r & 1))
local pick2=$((r & 2))
local pick3=$((r & 4))
[ $pick1 -ne 0 ] && flags="tso off"
[ $pick2 -ne 0 ] && flags="$flags gso off"
[ $pick3 -ne 0 ] && flags="$flags gro off"
[ -z "$flags" ] && return
set_ethtool_flags "$1" "$2" "$flags"
}
if $ethtool_random_on;then
set_random_ethtool_flags "$ns3" ns3eth2
set_random_ethtool_flags "$ns4" ns4eth3
else
set_ethtool_flags "$ns3" ns3eth2 "$ethtool_args"
set_ethtool_flags "$ns4" ns4eth3 "$ethtool_args"
fi
print_larger_title() {
# here we don't have the time, a bit longer for the alignment
MPTCP_LIB_TEST_FORMAT="%02u %-69s" \
mptcp_lib_print_title "${@}"
}
check_mptcp_disabled()
{
local disabled_ns
mptcp_lib_ns_init disabled_ns
print_larger_title "New MPTCP socket can be blocked via sysctl"
# net.mptcp.enabled should be enabled by default
if [ "$(ip netns exec ${disabled_ns} sysctl net.mptcp.enabled | awk '{ print $3 }')" -ne 1 ]; then
mptcp_lib_pr_fail "net.mptcp.enabled sysctl is not 1 by default"
mptcp_lib_result_fail "net.mptcp.enabled sysctl is not 1 by default"
ret=${KSFT_FAIL}
return 1
fi
ip netns exec ${disabled_ns} sysctl -q net.mptcp.enabled=0
local err=0
LC_ALL=C ip netns exec ${disabled_ns} ./mptcp_connect -p 10000 -s MPTCP 127.0.0.1 < "$cin" 2>&1 | \
grep -q "^socket: Protocol not available$" && err=1
mptcp_lib_ns_exit "${disabled_ns}"
if [ ${err} -eq 0 ]; then
mptcp_lib_pr_fail "New MPTCP socket cannot be blocked via sysctl"
mptcp_lib_result_fail "New MPTCP socket cannot be blocked via sysctl"
ret=${KSFT_FAIL}
return 1
fi
mptcp_lib_pr_ok
mptcp_lib_result_pass "New MPTCP socket can be blocked via sysctl"
return 0
}
do_ping()
{
local listener_ns="$1"
local connector_ns="$2"
local connect_addr="$3"
local ping_args="-q -c 1"
local rc=0
if mptcp_lib_is_v6 "${connect_addr}"; then
$ipv6 || return 0
ping_args="${ping_args} -6"
fi
ip netns exec ${connector_ns} ping ${ping_args} $connect_addr >/dev/null || rc=1
if [ $rc -ne 0 ] ; then
mptcp_lib_pr_fail "$listener_ns -> $connect_addr connectivity"
ret=${KSFT_FAIL}
return 1
fi
return 0
}
do_transfer()
{
local listener_ns="$1"
local connector_ns="$2"
local cl_proto="$3"
local srv_proto="$4"
local connect_addr="$5"
local local_addr="$6"
local extra_args="$7"
port=$((port + 1))
if [ "$rcvbuf" -gt 0 ]; then
extra_args+=" -R $rcvbuf"
fi
if [ "$sndbuf" -gt 0 ]; then
extra_args+=" -S $sndbuf"
fi
if [ -n "$testmode" ]; then
extra_args+=" -m $testmode"
fi
if [ -n "$extra_args" ] && $options_log; then
mptcp_lib_pr_info "extra options: $extra_args"
fi
options_log=false
:> "$cout"
:> "$sout"
:> "$capout"
local addr_port
addr_port=$(printf "%s:%d" ${connect_addr} ${port})
local pretty_title
pretty_title="$(printf "%.3s %-5s -> %.3s (%-20s) %-5s" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto})"
mptcp_lib_print_title "${pretty_title}"
local tap_title="${connector_ns:0:3} ${cl_proto} -> ${listener_ns:0:3} (${addr_port}) ${srv_proto}"
if $capture; then
local capuser
local rndh="${connector_ns:4}"
if [ -z $SUDO_USER ] ; then
capuser=""
else
capuser="-Z $SUDO_USER"
fi
local capfile="${rndh}-${connector_ns:0:3}-${listener_ns:0:3}-${cl_proto}-${srv_proto}-${connect_addr}-${port}"
local capopt="-i any -s 65535 -B 32768 ${capuser}"
ip netns exec ${listener_ns} tcpdump ${capopt} -w "${capfile}-listener.pcap" >> "${capout}" 2>&1 &
local cappid_listener=$!
ip netns exec ${connector_ns} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 &
local cappid_connector=$!
sleep 1
fi
NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
nstat -n
if [ ${listener_ns} != ${connector_ns} ]; then
NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
nstat -n
fi
local stat_synrx_last_l
local stat_ackrx_last_l
local stat_cookietx_last
local stat_cookierx_last
local stat_csum_err_s
local stat_csum_err_c
local stat_tcpfb_last_l
stat_synrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
stat_ackrx_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
stat_cookietx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent")
stat_cookierx_last=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv")
stat_csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr")
stat_csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr")
stat_tcpfb_last_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableFallbackACK")
timeout ${timeout_test} \
ip netns exec ${listener_ns} \
./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
$extra_args $local_addr < "$sin" > "$sout" &
local spid=$!
mptcp_lib_wait_local_port_listen "${listener_ns}" "${port}"
local start
start=$(date +%s%3N)
timeout ${timeout_test} \
ip netns exec ${connector_ns} \
./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
$extra_args $connect_addr < "$cin" > "$cout" &
local cpid=$!
wait $cpid
local retc=$?
wait $spid
local rets=$?
local stop
stop=$(date +%s%3N)
if $capture; then
sleep 1
kill ${cappid_listener}
kill ${cappid_connector}
fi
NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
nstat | grep Tcp > /tmp/${listener_ns}.out
if [ ${listener_ns} != ${connector_ns} ]; then
NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
nstat | grep Tcp > /tmp/${connector_ns}.out
fi
local duration
duration=$((stop-start))
printf "(duration %05sms) " "${duration}"
if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
mptcp_lib_pr_fail "client exit code $retc, server $rets"
echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2
ip netns exec ${listener_ns} ss -Menita 1>&2 -o "sport = :$port"
cat /tmp/${listener_ns}.out
echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2
ip netns exec ${connector_ns} ss -Menita 1>&2 -o "dport = :$port"
[ ${listener_ns} != ${connector_ns} ] && cat /tmp/${connector_ns}.out
echo
cat "$capout"
mptcp_lib_result_fail "${TEST_GROUP}: ${tap_title}"
return 1
fi
mptcp_lib_check_transfer $sin $cout "file received by client"
retc=$?
mptcp_lib_check_transfer $cin $sout "file received by server"
rets=$?
local extra=""
local stat_synrx_now_l
local stat_ackrx_now_l
local stat_cookietx_now
local stat_cookierx_now
local stat_ooo_now
local stat_tcpfb_now_l
stat_synrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
stat_ackrx_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
stat_cookietx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent")
stat_cookierx_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv")
stat_ooo_now=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtTCPOFOQueue")
stat_tcpfb_now_l=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableFallbackACK")
expect_synrx=$((stat_synrx_last_l))
expect_ackrx=$((stat_ackrx_last_l))
cookies=$(ip netns exec ${listener_ns} sysctl net.ipv4.tcp_syncookies)
cookies=${cookies##*=}
if [ ${cl_proto} = "MPTCP" ] && [ ${srv_proto} = "MPTCP" ]; then
expect_synrx=$((stat_synrx_last_l+connect_per_transfer))
expect_ackrx=$((stat_ackrx_last_l+connect_per_transfer))
fi
if [ ${stat_synrx_now_l} -lt ${expect_synrx} ]; then
mptcp_lib_pr_fail "lower MPC SYN rx (${stat_synrx_now_l})" \
"than expected (${expect_synrx})"
retc=1
fi
if [ ${stat_ackrx_now_l} -lt ${expect_ackrx} ] && [ ${stat_ooo_now} -eq 0 ]; then
if [ ${stat_ooo_now} -eq 0 ]; then
mptcp_lib_pr_fail "lower MPC ACK rx (${stat_ackrx_now_l})" \
"than expected (${expect_ackrx})"
rets=1
else
extra+=" [ Note ] fallback due to TCP OoO"
fi
fi
if $checksum; then
local csum_err_s
local csum_err_c
csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr")
csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr")
local csum_err_s_nr=$((csum_err_s - stat_csum_err_s))
if [ $csum_err_s_nr -gt 0 ]; then
mptcp_lib_pr_fail "server got ${csum_err_s_nr} data checksum error[s]"
rets=1
fi
local csum_err_c_nr=$((csum_err_c - stat_csum_err_c))
if [ $csum_err_c_nr -gt 0 ]; then
mptcp_lib_pr_fail "client got ${csum_err_c_nr} data checksum error[s]"
retc=1
fi
fi
if [ ${stat_ooo_now} -eq 0 ] && [ ${stat_tcpfb_last_l} -ne ${stat_tcpfb_now_l} ]; then
mptcp_lib_pr_fail "unexpected fallback to TCP"
rets=1
fi
if [ $cookies -eq 2 ];then
if [ $stat_cookietx_last -ge $stat_cookietx_now ] ;then
extra+=" WARN: CookieSent: did not advance"
fi
if [ $stat_cookierx_last -ge $stat_cookierx_now ] ;then
extra+=" WARN: CookieRecv: did not advance"
fi
else
if [ $stat_cookietx_last -ne $stat_cookietx_now ] ;then
extra+=" WARN: CookieSent: changed"
fi
if [ $stat_cookierx_last -ne $stat_cookierx_now ] ;then
extra+=" WARN: CookieRecv: changed"
fi
fi
if [ ${stat_synrx_now_l} -gt ${expect_synrx} ]; then
extra+=" WARN: SYNRX: expect ${expect_synrx},"
extra+=" got ${stat_synrx_now_l} (probably retransmissions)"
fi
if [ ${stat_ackrx_now_l} -gt ${expect_ackrx} ]; then
extra+=" WARN: ACKRX: expect ${expect_ackrx},"
extra+=" got ${stat_ackrx_now_l} (probably retransmissions)"
fi
if [ $retc -eq 0 ] && [ $rets -eq 0 ]; then
mptcp_lib_pr_ok "${extra:1}"
mptcp_lib_result_pass "${TEST_GROUP}: ${tap_title}"
else
if [ -n "${extra}" ]; then
mptcp_lib_print_warn "${extra:1}"
fi
mptcp_lib_result_fail "${TEST_GROUP}: ${tap_title}"
fi
cat "$capout"
[ $retc -eq 0 ] && [ $rets -eq 0 ]
}
make_file()
{
local name=$1
local who=$2
local SIZE=$filesize
local ksize
local rem
if [ $SIZE -eq 0 ]; then
local MAXSIZE=$((1024 * 1024 * 8))
local MINSIZE=$((1024 * 256))
SIZE=$(((RANDOM * RANDOM + MINSIZE) % MAXSIZE))
fi
ksize=$((SIZE / 1024))
rem=$((SIZE - (ksize * 1024)))
mptcp_lib_make_file $name 1024 $ksize
dd if=/dev/urandom conv=notrunc of="$name" oflag=append bs=1 count=$rem 2> /dev/null
echo "Created $name (size $(du -b "$name")) containing data sent by $who"
}
run_tests_lo()
{
local listener_ns="$1"
local connector_ns="$2"
local connect_addr="$3"
local loopback="$4"
local extra_args="$5"
local lret=0
# skip if test programs are running inside same netns for subsequent runs.
if [ $loopback -eq 0 ] && [ ${listener_ns} = ${connector_ns} ]; then
return 0
fi
# skip if we don't want v6
if ! $ipv6 && mptcp_lib_is_v6 "${connect_addr}"; then
return 0
fi
local local_addr
if mptcp_lib_is_v6 "${connect_addr}"; then
local_addr="::"
else
local_addr="0.0.0.0"
fi
do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \
${connect_addr} ${local_addr} "${extra_args}"
lret=$?
if [ $lret -ne 0 ]; then
ret=$lret
return 1
fi
if [ $do_tcp -eq 0 ]; then
# don't bother testing fallback tcp except for loopback case.
if [ ${listener_ns} != ${connector_ns} ]; then
return 0
fi
fi
do_transfer ${listener_ns} ${connector_ns} MPTCP TCP \
${connect_addr} ${local_addr} "${extra_args}"
lret=$?
if [ $lret -ne 0 ]; then
ret=$lret
return 1
fi
do_transfer ${listener_ns} ${connector_ns} TCP MPTCP \
${connect_addr} ${local_addr} "${extra_args}"
lret=$?
if [ $lret -ne 0 ]; then
ret=$lret
return 1
fi
if [ $do_tcp -gt 1 ] ;then
do_transfer ${listener_ns} ${connector_ns} TCP TCP \
${connect_addr} ${local_addr} "${extra_args}"
lret=$?
if [ $lret -ne 0 ]; then
ret=$lret
return 1
fi
fi
return 0
}
run_tests()
{
run_tests_lo $1 $2 $3 0
}
run_test_transparent()
{
local connect_addr="$1"
local msg="$2"
local connector_ns="$ns1"
local listener_ns="$ns2"
local lret=0
local r6flag=""
TEST_GROUP="${msg}"
# skip if we don't want v6
if ! $ipv6 && mptcp_lib_is_v6 "${connect_addr}"; then
return 0
fi
# IP(V6)_TRANSPARENT has been added after TOS support which came with
# the required infrastructure in MPTCP sockopt code. To support TOS, the
# following function has been exported (T). Not great but better than
# checking for a specific kernel version.
if ! mptcp_lib_kallsyms_has "T __ip_sock_set_tos$"; then
mptcp_lib_pr_skip "${msg} not supported by the kernel"
mptcp_lib_result_skip "${TEST_GROUP}"
return
fi
if ! ip netns exec "$listener_ns" nft -f /dev/stdin <<"EOF"
flush ruleset
table inet mangle {
chain divert {
type filter hook prerouting priority -150;
meta l4proto tcp socket transparent 1 meta mark set 1 accept
tcp dport 20000 tproxy to :20000 meta mark set 1 accept
}
}
EOF
then
mptcp_lib_pr_skip "$msg, could not load nft ruleset"
mptcp_lib_fail_if_expected_feature "nft rules"
mptcp_lib_result_skip "${TEST_GROUP}"
return
fi
local local_addr
if mptcp_lib_is_v6 "${connect_addr}"; then
local_addr="::"
r6flag="-6"
else
local_addr="0.0.0.0"
fi
if ! ip -net "$listener_ns" $r6flag rule add fwmark 1 lookup 100; then
ip netns exec "$listener_ns" nft flush ruleset
mptcp_lib_pr_skip "$msg, ip $r6flag rule failed"
mptcp_lib_fail_if_expected_feature "ip rule"
mptcp_lib_result_skip "${TEST_GROUP}"
return
fi
if ! ip -net "$listener_ns" route add local $local_addr/0 dev lo table 100; then
ip netns exec "$listener_ns" nft flush ruleset
ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100
mptcp_lib_pr_skip "$msg, ip route add local $local_addr failed"
mptcp_lib_fail_if_expected_feature "ip route"
mptcp_lib_result_skip "${TEST_GROUP}"
return
fi
mptcp_lib_pr_info "test $msg"
port=$((20000 - 1))
local extra_args="-o TRANSPARENT"
do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \
${connect_addr} ${local_addr} "${extra_args}"
lret=$?
ip netns exec "$listener_ns" nft flush ruleset
ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100
ip -net "$listener_ns" route del local $local_addr/0 dev lo table 100
if [ $lret -ne 0 ]; then
mptcp_lib_pr_fail "$msg, mptcp connection error"
ret=$lret
return 1
fi
mptcp_lib_pr_info "$msg pass"
return 0
}
run_tests_peekmode()
{
local peekmode="$1"
TEST_GROUP="peek mode: ${peekmode}"
mptcp_lib_pr_info "with peek mode: ${peekmode}"
run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-P ${peekmode}"
run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-P ${peekmode}"
}
run_tests_mptfo()
{
TEST_GROUP="MPTFO"
if ! mptcp_lib_kallsyms_has "mptcp_fastopen_"; then
mptcp_lib_pr_skip "TFO not supported by the kernel"
mptcp_lib_result_skip "${TEST_GROUP}"
return
fi
mptcp_lib_pr_info "with MPTFO start"
ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=2
ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=1
run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO"
run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO"
run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO"
run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO"
ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=0
ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=0
mptcp_lib_pr_info "with MPTFO end"
}
run_tests_disconnect()
{
local old_cin=$cin
local old_sin=$sin
TEST_GROUP="full disconnect"
if ! mptcp_lib_kallsyms_has "mptcp_pm_data_reset$"; then
mptcp_lib_pr_skip "Full disconnect not supported"
mptcp_lib_result_skip "${TEST_GROUP}"
return
fi
cat $cin $cin $cin > "$cin".disconnect
# force do_transfer to cope with the multiple transmissions
sin="$cin.disconnect"
cin="$cin.disconnect"
cin_disconnect="$old_cin"
connect_per_transfer=3
mptcp_lib_pr_info "disconnect"
run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-I 3 -i $old_cin"
run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-I 3 -i $old_cin"
# restore previous status
sin=$old_sin
cin=$old_cin
cin_disconnect="$cin".disconnect
connect_per_transfer=1
}
display_time()
{
time_end=$(date +%s)
time_run=$((time_end-time_start))
echo "Time: ${time_run} seconds"
}
log_if_error()
{
local msg="$1"
if [ ${ret} -ne 0 ]; then
mptcp_lib_pr_fail "${msg}"
final_ret=${ret}
ret=${KSFT_PASS}
return ${final_ret}
fi
}
stop_if_error()
{
if ! log_if_error "${@}"; then
display_time
mptcp_lib_result_print_all_tap
exit ${final_ret}
fi
}
make_file "$cin" "client"
make_file "$sin" "server"
mptcp_lib_subtests_last_ts_reset
check_mptcp_disabled
stop_if_error "The kernel configuration is not valid for MPTCP"
print_larger_title "Validating network environment with pings"
for sender in "$ns1" "$ns2" "$ns3" "$ns4";do
do_ping "$ns1" $sender 10.0.1.1
do_ping "$ns1" $sender dead:beef:1::1
do_ping "$ns2" $sender 10.0.1.2
do_ping "$ns2" $sender dead:beef:1::2
do_ping "$ns2" $sender 10.0.2.1
do_ping "$ns2" $sender dead:beef:2::1
do_ping "$ns3" $sender 10.0.2.2
do_ping "$ns3" $sender dead:beef:2::2
do_ping "$ns3" $sender 10.0.3.2
do_ping "$ns3" $sender dead:beef:3::2
do_ping "$ns4" $sender 10.0.3.1
do_ping "$ns4" $sender dead:beef:3::1
done
mptcp_lib_result_code "${ret}" "ping tests"
stop_if_error "Could not even run ping tests"
mptcp_lib_pr_ok
[ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms
tc_info="loss of $tc_loss "
test "$tc_delay" -gt 0 && tc_info+="delay $tc_delay ms "
reorder_delay=$((tc_delay / 4))
if [ -z "${tc_reorder}" ]; then
reorder1=$((RANDOM%10))
reorder1=$((100 - reorder1))
reorder2=$((RANDOM%100))
if [ $reorder_delay -gt 0 ] && [ $reorder1 -lt 100 ] && [ $reorder2 -gt 0 ]; then
tc_reorder="reorder ${reorder1}% ${reorder2}%"
tc_info+="$tc_reorder with delay ${reorder_delay}ms "
fi
elif [ "$tc_reorder" = "0" ];then
tc_reorder=""
elif [ "$reorder_delay" -gt 0 ];then
# reordering requires some delay
tc_reorder="reorder $tc_reorder"
tc_info+="$tc_reorder with delay ${reorder_delay}ms "
fi
mptcp_lib_pr_info "Using ${tc_info}on ns3eth4"
tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder
TEST_GROUP="loopback v4"
run_tests_lo "$ns1" "$ns1" 10.0.1.1 1
stop_if_error "Could not even run loopback test"
TEST_GROUP="loopback v6"
run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1
stop_if_error "Could not even run loopback v6 test"
TEST_GROUP="multihosts"
for sender in $ns1 $ns2 $ns3 $ns4;do
# ns1<->ns2 is not subject to reordering/tc delays. Use it to test
# mptcp syncookie support.
if [ $sender = $ns1 ]; then
ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2
else
ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1
fi
run_tests "$ns1" $sender 10.0.1.1
run_tests "$ns1" $sender dead:beef:1::1
run_tests "$ns2" $sender 10.0.1.2
run_tests "$ns2" $sender dead:beef:1::2
run_tests "$ns2" $sender 10.0.2.1
run_tests "$ns2" $sender dead:beef:2::1
run_tests "$ns3" $sender 10.0.2.2
run_tests "$ns3" $sender dead:beef:2::2
run_tests "$ns3" $sender 10.0.3.2
run_tests "$ns3" $sender dead:beef:3::2
run_tests "$ns4" $sender 10.0.3.1
run_tests "$ns4" $sender dead:beef:3::1
log_if_error "Tests with $sender as a sender have failed"
done
run_tests_peekmode "saveWithPeek"
run_tests_peekmode "saveAfterPeek"
log_if_error "Tests with peek mode have failed"
# MPTFO (MultiPath TCP Fatopen tests)
run_tests_mptfo
log_if_error "Tests with MPTFO have failed"
# connect to ns4 ip address, ns2 should intercept/proxy
run_test_transparent 10.0.3.1 "tproxy ipv4"
run_test_transparent dead:beef:3::1 "tproxy ipv6"
log_if_error "Tests with tproxy have failed"
run_tests_disconnect
log_if_error "Tests of the full disconnection have failed"
display_time
mptcp_lib_result_print_all_tap
exit ${final_ret}
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