#!/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
# ShellCheck incorrectly believes that most of the code here is unreachable
# because it's invoked by variable name, see how the "tests" array is used
#shellcheck disable=SC2317
. "$(dirname "${0}")/mptcp_lib.sh"
ret=0
sin=""
sinfail=""
sout=""
cin=""
cinfail=""
cinsent=""
tmpfile=""
cout=""
err=""
capout=""
ns1=""
ns2=""
iptables="iptables"
ip6tables="ip6tables"
timeout_poll=30
timeout_test=$((timeout_poll * 2 + 1))
capture=false
checksum=false
check_invert=0
validate_checksum=false
init=0
evts_ns1=""
evts_ns2=""
evts_ns1_pid=0
evts_ns2_pid=0
last_test_failed=0
last_test_skipped=0
last_test_ignored=1
declare -A all_tests
declare -a only_tests_ids
declare -a only_tests_names
declare -A failed_tests
MPTCP_LIB_TEST_FORMAT="%03u %s\n"
TEST_NAME=""
nr_blank=6
# These var are used only in some tests, make sure they are not already set
unset FAILING_LINKS
unset test_linkfail
unset addr_nr_ns1
unset addr_nr_ns2
unset cestab_ns1
unset cestab_ns2
unset sflags
unset fastclose
unset fullmesh
unset speed
unset join_csum_ns1
unset join_csum_ns2
unset join_fail_nr
unset join_rst_nr
unset join_infi_nr
unset join_corrupted_pkts
unset join_syn_tx
unset join_create_err
unset join_bind_err
unset join_connect_err
# generated using "nfbpf_compile '(ip && (ip[54] & 0xf0) == 0x30) ||
# (ip6 && (ip6[74] & 0xf0) == 0x30)'"
CBPF_MPTCP_SUBOPTION_ADD_ADDR="14,
48 0 0 0,
84 0 0 240,
21 0 3 64,
48 0 0 54,
84 0 0 240,
21 6 7 48,
48 0 0 0,
84 0 0 240,
21 0 4 96,
48 0 0 74,
84 0 0 240,
21 0 1 48,
6 0 0 65535,
6 0 0 0"
init_partial()
{
capout=$(mktemp)
mptcp_lib_ns_init ns1 ns2
local netns
for netns in "$ns1" "$ns2"; do
ip netns exec $netns sysctl -q net.mptcp.pm_type=0 2>/dev/null || true
if $checksum; then
ip netns exec $netns sysctl -q net.mptcp.checksum_enabled=1
fi
done
check_invert=0
validate_checksum=$checksum
# ns1 ns2
# ns1eth1 ns2eth1
# ns1eth2 ns2eth2
# ns1eth3 ns2eth3
# ns1eth4 ns2eth4
local i
for i in $(seq 1 4); do
ip link add ns1eth$i netns "$ns1" type veth peer name ns2eth$i netns "$ns2"
ip -net "$ns1" addr add 10.0.$i.1/24 dev ns1eth$i
ip -net "$ns1" addr add dead:beef:$i::1/64 dev ns1eth$i nodad
ip -net "$ns1" link set ns1eth$i up
ip -net "$ns2" addr add 10.0.$i.2/24 dev ns2eth$i
ip -net "$ns2" addr add dead:beef:$i::2/64 dev ns2eth$i nodad
ip -net "$ns2" link set ns2eth$i up
# let $ns2 reach any $ns1 address from any interface
ip -net "$ns2" route add default via 10.0.$i.1 dev ns2eth$i metric 10$i
ip -net "$ns2" route add default via dead:beef:$i::1 dev ns2eth$i metric 10$i
done
}
init_shapers()
{
local i
for i in $(seq 1 4); do
tc -n $ns1 qdisc add dev ns1eth$i root netem rate 20mbit delay 1ms
tc -n $ns2 qdisc add dev ns2eth$i root netem rate 20mbit delay 1ms
done
}
cleanup_partial()
{
rm -f "$capout"
mptcp_lib_ns_exit "${ns1}" "${ns2}"
}
init() {
init=1
mptcp_lib_check_mptcp
mptcp_lib_check_kallsyms
mptcp_lib_check_tools ip tc ss "${iptables}" "${ip6tables}"
sin=$(mktemp)
sout=$(mktemp)
cin=$(mktemp)
cinsent=$(mktemp)
cout=$(mktemp)
err=$(mktemp)
evts_ns1=$(mktemp)
evts_ns2=$(mktemp)
trap cleanup EXIT
make_file "$cin" "client" 1 >/dev/null
make_file "$sin" "server" 1 >/dev/null
}
cleanup()
{
rm -f "$cin" "$cout" "$sinfail"
rm -f "$sin" "$sout" "$cinsent" "$cinfail"
rm -f "$tmpfile"
rm -rf $evts_ns1 $evts_ns2
rm -f "$err"
cleanup_partial
}
print_check()
{
printf "%-${nr_blank}s%-36s" " " "${*}"
}
print_info()
{
# It can be empty, no need to print anything then
[ -z "${1}" ] && return
mptcp_lib_print_info " Info: ${*}"
}
print_ok()
{
mptcp_lib_pr_ok "${@}"
}
print_fail()
{
mptcp_lib_pr_fail "${@}"
}
print_skip()
{
mptcp_lib_pr_skip "${@}"
}
# $1: check name; $2: rc
print_results()
{
local check="${1}"
local rc=${2}
print_check "${check}"
if [ ${rc} = ${KSFT_PASS} ]; then
print_ok
elif [ ${rc} = ${KSFT_SKIP} ]; then
print_skip
else
fail_test "see above"
fi
}
# [ $1: fail msg ]
mark_as_skipped()
{
local msg="${1:-"Feature not supported"}"
mptcp_lib_fail_if_expected_feature "${msg}"
print_check "${msg}"
print_skip
last_test_skipped=1
}
# $@: condition
continue_if()
{
if ! "${@}"; then
mark_as_skipped
return 1
fi
}
skip_test()
{
if [ "${#only_tests_ids[@]}" -eq 0 ] && [ "${#only_tests_names[@]}" -eq 0 ]; then
return 1
fi
local i
for i in "${only_tests_ids[@]}"; do
if [ "$((MPTCP_LIB_TEST_COUNTER+1))" -eq "${i}" ]; then
return 1
fi
done
for i in "${only_tests_names[@]}"; do
if [ "${TEST_NAME}" = "${i}" ]; then
return 1
fi
done
return 0
}
append_prev_results()
{
if [ ${last_test_failed} -eq 1 ]; then
mptcp_lib_result_fail "${TEST_NAME}"
elif [ ${last_test_skipped} -eq 1 ]; then
mptcp_lib_result_skip "${TEST_NAME}"
elif [ ${last_test_ignored} -ne 1 ]; then
mptcp_lib_result_pass "${TEST_NAME}"
fi
last_test_failed=0
last_test_skipped=0
last_test_ignored=0
}
# $1: test name
reset()
{
append_prev_results
TEST_NAME="${1}"
MPTCP_LIB_SUBTEST_FLAKY=0 # reset if modified
if skip_test; then
MPTCP_LIB_TEST_COUNTER=$((MPTCP_LIB_TEST_COUNTER+1))
last_test_ignored=1
return 1
fi
mptcp_lib_print_title "${TEST_NAME}"
if [ "${init}" != "1" ]; then
init
else
cleanup_partial
fi
init_partial
return 0
}
# $1: test name ; $2: counter to check
reset_check_counter()
{
reset "${1}" || return 1
local counter="${2}"
if ! nstat -asz "${counter}" | grep -wq "${counter}"; then
mark_as_skipped "counter '${counter}' is not available"
return 1
fi
}
# $1: test name
reset_with_cookies()
{
reset "${1}" || return 1
local netns
for netns in "$ns1" "$ns2"; do
ip netns exec $netns sysctl -q net.ipv4.tcp_syncookies=2
done
}
# $1: test name
reset_with_add_addr_timeout()
{
local ip="${2:-4}"
local tables
reset "${1}" || return 1
tables="${iptables}"
if [ $ip -eq 6 ]; then
tables="${ip6tables}"
fi
ip netns exec $ns1 sysctl -q net.mptcp.add_addr_timeout=1
if ! ip netns exec $ns2 $tables -A OUTPUT -p tcp \
-m tcp --tcp-option 30 \
-m bpf --bytecode \
"$CBPF_MPTCP_SUBOPTION_ADD_ADDR" \
-j DROP; then
mark_as_skipped "unable to set the 'add addr' rule"
return 1
fi
}
# $1: test name
reset_with_checksum()
{
local ns1_enable=$1
local ns2_enable=$2
reset "checksum test ${ns1_enable} ${ns2_enable}" || return 1
ip netns exec $ns1 sysctl -q net.mptcp.checksum_enabled=$ns1_enable
ip netns exec $ns2 sysctl -q net.mptcp.checksum_enabled=$ns2_enable
validate_checksum=true
}
reset_with_allow_join_id0()
{
local ns1_enable=$2
local ns2_enable=$3
reset "${1}" || return 1
ip netns exec $ns1 sysctl -q net.mptcp.allow_join_initial_addr_port=$ns1_enable
ip netns exec $ns2 sysctl -q net.mptcp.allow_join_initial_addr_port=$ns2_enable
}
# Modify TCP payload without corrupting the TCP packet
#
# This rule inverts a 8-bit word at byte offset 148 for the 2nd TCP ACK packets
# carrying enough data.
# Once it is done, the TCP Checksum field is updated so the packet is still
# considered as valid at the TCP level.
# Because the MPTCP checksum, covering the TCP options and data, has not been
# updated, the modification will be detected and an MP_FAIL will be emitted:
# what we want to validate here without corrupting "random" MPTCP options.
#
# To avoid having tc producing this pr_info() message for each TCP ACK packets
# not carrying enough data:
#
# tc action pedit offset 162 out of bounds
#
# Netfilter is used to mark packets with enough data.
setup_fail_rules()
{
check_invert=1
validate_checksum=true
local i="$1"
local ip="${2:-4}"
local tables
tables="${iptables}"
if [ $ip -eq 6 ]; then
tables="${ip6tables}"
fi
ip netns exec $ns2 $tables \
-t mangle \
-A OUTPUT \
-o ns2eth$i \
-p tcp \
-m length --length 150:9999 \
-m statistic --mode nth --packet 1 --every 99999 \
-j MARK --set-mark 42 || return ${KSFT_SKIP}
tc -n $ns2 qdisc add dev ns2eth$i clsact || return ${KSFT_SKIP}
tc -n $ns2 filter add dev ns2eth$i egress \
protocol ip prio 1000 \
handle 42 fw \
action pedit munge offset 148 u8 invert \
pipe csum tcp \
index 100 || return ${KSFT_SKIP}
}
reset_with_fail()
{
reset_check_counter "${1}" "MPTcpExtInfiniteMapTx" || return 1
shift
ip netns exec $ns1 sysctl -q net.mptcp.checksum_enabled=1
ip netns exec $ns2 sysctl -q net.mptcp.checksum_enabled=1
local rc=0
setup_fail_rules "${@}" || rc=$?
if [ ${rc} -eq ${KSFT_SKIP} ]; then
mark_as_skipped "unable to set the 'fail' rules"
return 1
fi
}
start_events()
{
mptcp_lib_events "${ns1}" "${evts_ns1}" evts_ns1_pid
mptcp_lib_events "${ns2}" "${evts_ns2}" evts_ns2_pid
}
reset_with_events()
{
reset "${1}" || return 1
start_events
}
reset_with_tcp_filter()
{
reset "${1}" || return 1
shift
local ns="${!1}"
local src="${2}"
local target="${3}"
local chain="${4:-INPUT}"
if ! ip netns exec "${ns}" ${iptables} \
-A "${chain}" \
-s "${src}" \
-p tcp \
-j "${target}"; then
mark_as_skipped "unable to set the filter rules"
return 1
fi
}
# $1: err msg
fail_test()
{
if ! mptcp_lib_subtest_is_flaky; then
ret=${KSFT_FAIL}
fi
if [ ${#} -gt 0 ]; then
print_fail "${@}"
fi
# just in case a test is marked twice as failed
if [ ${last_test_failed} -eq 0 ]; then
failed_tests[${MPTCP_LIB_TEST_COUNTER}]="${TEST_NAME}"
dump_stats
last_test_failed=1
fi
}
get_failed_tests_ids()
{
# sorted
local i
for i in "${!failed_tests[@]}"; do
echo "${i}"
done | sort -n
}
check_transfer()
{
local in=$1
local out=$2
local what=$3
local bytes=$4
local i a b
local line
if [ -n "$bytes" ]; then
local out_size
# when truncating we must check the size explicitly
out_size=$(wc -c $out | awk '{print $1}')
if [ $out_size -ne $bytes ]; then
fail_test "$what output file has wrong size ($out_size, $bytes)"
return 1
fi
# note: BusyBox's "cmp" command doesn't support --bytes
tmpfile=$(mktemp)
head --bytes="$bytes" "$in" > "$tmpfile"
mv "$tmpfile" "$in"
head --bytes="$bytes" "$out" > "$tmpfile"
mv "$tmpfile" "$out"
tmpfile=""
fi
cmp -l "$in" "$out" | while read -r i a b; do
local sum=$((0${a} + 0${b}))
if [ $check_invert -eq 0 ] || [ $sum -ne $((0xff)) ]; then
fail_test "$what does not match (in, out):"
mptcp_lib_print_file_err "$in"
mptcp_lib_print_file_err "$out"
return 1
else
print_info "$what has inverted byte at ${i}"
fi
done
return 0
}
do_ping()
{
local listener_ns="$1"
local connector_ns="$2"
local connect_addr="$3"
if ! ip netns exec ${connector_ns} ping -q -c 1 $connect_addr >/dev/null; then
fail_test "$listener_ns -> $connect_addr connectivity"
fi
}
link_failure()
{
local ns="$1"
if [ -z "$FAILING_LINKS" ]; then
l=$((RANDOM%4))
FAILING_LINKS=$((l+1))
fi
local l
for l in $FAILING_LINKS; do
local veth="ns1eth$l"
ip -net "$ns" link set "$veth" down
done
}
rm_addr_count()
{
mptcp_lib_get_counter "${1}" "MPTcpExtRmAddr"
}
# $1: ns, $2: old rm_addr counter in $ns
wait_rm_addr()
{
local ns="${1}"
local old_cnt="${2}"
local cnt
local i
for i in $(seq 10); do
cnt=$(rm_addr_count ${ns})
[ "$cnt" = "${old_cnt}" ] || break
sleep 0.1
done
}
rm_sf_count()
{
mptcp_lib_get_counter "${1}" "MPTcpExtRmSubflow"
}
# $1: ns, $2: old rm_sf counter in $ns
wait_rm_sf()
{
local ns="${1}"
local old_cnt="${2}"
local cnt
local i
for i in $(seq 10); do
cnt=$(rm_sf_count ${ns})
[ "$cnt" = "${old_cnt}" ] || break
sleep 0.1
done
}
wait_mpj()
{
local ns="${1}"
local cnt old_cnt
old_cnt=$(mptcp_lib_get_counter ${ns} "MPTcpExtMPJoinAckRx")
local i
for i in $(seq 10); do
cnt=$(mptcp_lib_get_counter ${ns} "MPTcpExtMPJoinAckRx")
[ "$cnt" = "${old_cnt}" ] || break
sleep 0.1
done
}
kill_events_pids()
{
mptcp_lib_kill_wait $evts_ns1_pid
evts_ns1_pid=0
mptcp_lib_kill_wait $evts_ns2_pid
evts_ns2_pid=0
}
pm_nl_set_limits()
{
mptcp_lib_pm_nl_set_limits "${@}"
}
pm_nl_add_endpoint()
{
mptcp_lib_pm_nl_add_endpoint "${@}"
}
pm_nl_del_endpoint()
{
mptcp_lib_pm_nl_del_endpoint "${@}"
}
pm_nl_flush_endpoint()
{
mptcp_lib_pm_nl_flush_endpoint "${@}"
}
pm_nl_show_endpoints()
{
mptcp_lib_pm_nl_show_endpoints "${@}"
}
pm_nl_change_endpoint()
{
mptcp_lib_pm_nl_change_endpoint "${@}"
}
pm_nl_check_endpoint()
{
local msg="$1"
local ns=$2
local addr=$3
local flags dev id port
print_check "${msg}"
shift 3
while [ -n "$1" ]; do
case "${1}" in
"flags" | "dev" | "id" | "port")
eval "${1}"="${2}"
shift
;;
*)
;;
esac
shift
done
if [ -z "${id}" ]; then
fail_test "bad test - missing endpoint id"
return
fi
check_output "mptcp_lib_pm_nl_get_endpoint ${ns} ${id}" \
"$(mptcp_lib_pm_nl_format_endpoints \
"${id},${addr},${flags//","/" "},${dev},${port}")"
}
pm_nl_set_endpoint()
{
local listener_ns="$1"
local connector_ns="$2"
local connect_addr="$3"
local addr_nr_ns1=${addr_nr_ns1:-0}
local addr_nr_ns2=${addr_nr_ns2:-0}
local sflags=${sflags:-""}
local fullmesh=${fullmesh:-""}
local flags="subflow"
if [ -n "${fullmesh}" ]; then
flags="${flags},fullmesh"
addr_nr_ns2=${fullmesh}
fi
# let the mptcp subflow be established in background before
# do endpoint manipulation
if [ $addr_nr_ns1 != "0" ] || [ $addr_nr_ns2 != "0" ]; then
sleep 1
fi
if [ $addr_nr_ns1 -gt 0 ]; then
local counter=2
local add_nr_ns1=${addr_nr_ns1}
local id=10
while [ $add_nr_ns1 -gt 0 ]; do
local addr
if mptcp_lib_is_v6 "${connect_addr}"; then
addr="dead:beef:$counter::1"
else
addr="10.0.$counter.1"
fi
pm_nl_add_endpoint $ns1 $addr flags signal
counter=$((counter + 1))
add_nr_ns1=$((add_nr_ns1 - 1))
id=$((id + 1))
done
elif [ $addr_nr_ns1 -lt 0 ]; then
local rm_nr_ns1=$((-addr_nr_ns1))
if [ $rm_nr_ns1 -lt 8 ]; then
local counter=0
local line
pm_nl_show_endpoints ${listener_ns} | while read -r line; do
# shellcheck disable=SC2206 # we do want to split per word
local arr=($line)
local nr=0
local i
for i in "${arr[@]}"; do
if [ $i = "id" ]; then
if [ $counter -eq $rm_nr_ns1 ]; then
break
fi
id=${arr[$nr+1]}
rm_addr=$(rm_addr_count ${connector_ns})
pm_nl_del_endpoint ${listener_ns} $id
wait_rm_addr ${connector_ns} ${rm_addr}
counter=$((counter + 1))
fi
nr=$((nr + 1))
done
done
elif [ $rm_nr_ns1 -eq 8 ]; then
pm_nl_flush_endpoint ${listener_ns}
elif [ $rm_nr_ns1 -eq 9 ]; then
pm_nl_del_endpoint ${listener_ns} 0 ${connect_addr}
fi
fi
# if newly added endpoints must be deleted, give the background msk
# some time to created them
[ $addr_nr_ns1 -gt 0 ] && [ $addr_nr_ns2 -lt 0 ] && sleep 1
if [ $addr_nr_ns2 -gt 0 ]; then
local add_nr_ns2=${addr_nr_ns2}
local counter=3
local id=20
while [ $add_nr_ns2 -gt 0 ]; do
local addr
if mptcp_lib_is_v6 "${connect_addr}"; then
addr="dead:beef:$counter::2"
else
addr="10.0.$counter.2"
fi
pm_nl_add_endpoint $ns2 $addr flags $flags
counter=$((counter + 1))
add_nr_ns2=$((add_nr_ns2 - 1))
id=$((id + 1))
done
elif [ $addr_nr_ns2 -lt 0 ]; then
local rm_nr_ns2=$((-addr_nr_ns2))
if [ $rm_nr_ns2 -lt 8 ]; then
local counter=0
local line
pm_nl_show_endpoints ${connector_ns} | while read -r line; do
# shellcheck disable=SC2206 # we do want to split per word
local arr=($line)
local nr=0
local i
for i in "${arr[@]}"; do
if [ $i = "id" ]; then
if [ $counter -eq $rm_nr_ns2 ]; then
break
fi
local id rm_addr
# rm_addr are serialized, allow the previous one to
# complete
id=${arr[$nr+1]}
rm_addr=$(rm_addr_count ${listener_ns})
pm_nl_del_endpoint ${connector_ns} $id
wait_rm_addr ${listener_ns} ${rm_addr}
counter=$((counter + 1))
fi
nr=$((nr + 1))
done
done
elif [ $rm_nr_ns2 -eq 8 ]; then
pm_nl_flush_endpoint ${connector_ns}
elif [ $rm_nr_ns2 -eq 9 ]; then
local addr
if mptcp_lib_is_v6 "${connect_addr}"; then
addr="dead:beef:1::2"
else
addr="10.0.1.2"
fi
pm_nl_del_endpoint ${connector_ns} 0 $addr
fi
fi
if [ -n "${sflags}" ]; then
sleep 1
local netns
for netns in "$ns1" "$ns2"; do
local line
pm_nl_show_endpoints $netns | while read -r line; do
# shellcheck disable=SC2206 # we do want to split per word
local arr=($line)
local nr=0
local id
local i
for i in "${arr[@]}"; do
if [ $i = "id" ]; then
id=${arr[$nr+1]}
fi
nr=$((nr + 1))
done
pm_nl_change_endpoint $netns $id $sflags
done
done
fi
}
chk_cestab_nr()
{
local ns=$1
local cestab=$2
local count
print_check "currently established: $cestab"
count=$(mptcp_lib_get_counter ${ns} "MPTcpExtMPCurrEstab")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$cestab" ]; then
fail_test "got $count current establish[s] expected $cestab"
else
print_ok
fi
}
# $1 namespace 1, $2 namespace 2
check_cestab()
{
if [ -n "${cestab_ns1}" ]; then
chk_cestab_nr ${1} ${cestab_ns1}
fi
if [ -n "${cestab_ns2}" ]; then
chk_cestab_nr ${2} ${cestab_ns2}
fi
}
do_transfer()
{
local listener_ns="$1"
local connector_ns="$2"
local cl_proto="$3"
local srv_proto="$4"
local connect_addr="$5"
local port=$((10000 + MPTCP_LIB_TEST_COUNTER - 1))
local cappid
local FAILING_LINKS=${FAILING_LINKS:-""}
local fastclose=${fastclose:-""}
local speed=${speed:-"fast"}
:> "$cout"
:> "$sout"
:> "$capout"
if $capture; then
local capuser
if [ -z $SUDO_USER ] ; then
capuser=""
else
capuser="-Z $SUDO_USER"
fi
capfile=$(printf "mp_join-%02u-%s.pcap" "$MPTCP_LIB_TEST_COUNTER" "${listener_ns}")
echo "Capturing traffic for test $MPTCP_LIB_TEST_COUNTER into $capfile"
ip netns exec ${listener_ns} tcpdump -i any -s 65535 -B 32768 $capuser -w $capfile > "$capout" 2>&1 &
cappid=$!
sleep 1
fi
NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
nstat -n
NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
nstat -n
local extra_args
if [ $speed = "fast" ]; then
extra_args="-j"
elif [ $speed = "slow" ]; then
extra_args="-r 50"
elif [ $speed -gt 0 ]; then
extra_args="-r ${speed}"
fi
local extra_cl_args=""
local extra_srv_args=""
local trunc_size=""
if [ -n "${fastclose}" ]; then
if [ ${test_linkfail} -le 1 ]; then
fail_test "fastclose tests need test_linkfail argument"
return 1
fi
# disconnect
trunc_size=${test_linkfail}
local side=${fastclose}
if [ ${side} = "client" ]; then
extra_cl_args="-f ${test_linkfail}"
extra_srv_args="-f -1"
elif [ ${side} = "server" ]; then
extra_srv_args="-f ${test_linkfail}"
extra_cl_args="-f -1"
else
fail_test "wrong/unknown fastclose spec ${side}"
return 1
fi
fi
extra_srv_args="$extra_args $extra_srv_args"
if [ "$test_linkfail" -gt 1 ];then
timeout ${timeout_test} \
ip netns exec ${listener_ns} \
./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
$extra_srv_args "::" < "$sinfail" > "$sout" &
else
timeout ${timeout_test} \
ip netns exec ${listener_ns} \
./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
$extra_srv_args "::" < "$sin" > "$sout" &
fi
local spid=$!
mptcp_lib_wait_local_port_listen "${listener_ns}" "${port}"
extra_cl_args="$extra_args $extra_cl_args"
if [ "$test_linkfail" -eq 0 ];then
timeout ${timeout_test} \
ip netns exec ${connector_ns} \
./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
$extra_cl_args $connect_addr < "$cin" > "$cout" &
elif [ "$test_linkfail" -eq 1 ] || [ "$test_linkfail" -eq 2 ];then
( cat "$cinfail" ; sleep 2; link_failure $listener_ns ; cat "$cinfail" ) | \
tee "$cinsent" | \
timeout ${timeout_test} \
ip netns exec ${connector_ns} \
./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
$extra_cl_args $connect_addr > "$cout" &
else
tee "$cinsent" < "$cinfail" | \
timeout ${timeout_test} \
ip netns exec ${connector_ns} \
./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
$extra_cl_args $connect_addr > "$cout" &
fi
local cpid=$!
pm_nl_set_endpoint $listener_ns $connector_ns $connect_addr
check_cestab $listener_ns $connector_ns
wait $cpid
local retc=$?
wait $spid
local rets=$?
if $capture; then
sleep 1
kill $cappid
fi
NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
nstat | grep Tcp > /tmp/${listener_ns}.out
NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
nstat | grep Tcp > /tmp/${connector_ns}.out
if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
fail_test "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"
cat /tmp/${connector_ns}.out
cat "$capout"
return 1
fi
if [ "$test_linkfail" -gt 1 ];then
check_transfer $sinfail $cout "file received by client" $trunc_size
else
check_transfer $sin $cout "file received by client" $trunc_size
fi
retc=$?
if [ "$test_linkfail" -eq 0 ];then
check_transfer $cin $sout "file received by server" $trunc_size
else
check_transfer $cinsent $sout "file received by server" $trunc_size
fi
rets=$?
if [ $retc -eq 0 ] && [ $rets -eq 0 ];then
cat "$capout"
return 0
fi
cat "$capout"
return 1
}
make_file()
{
local name=$1
local who=$2
local size=$3
mptcp_lib_make_file $name 1024 $size
print_info "Test file (size $size KB) for $who"
}
run_tests()
{
local listener_ns="$1"
local connector_ns="$2"
local connect_addr="$3"
local size
local test_linkfail=${test_linkfail:-0}
# The values above 2 are reused to make test files
# with the given sizes (KB)
if [ "$test_linkfail" -gt 2 ]; then
size=$test_linkfail
if [ -z "$cinfail" ]; then
cinfail=$(mktemp)
fi
make_file "$cinfail" "client" $size
# create the input file for the failure test when
# the first failure test run
elif [ "$test_linkfail" -ne 0 ] && [ -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*8192))
size=$((size + ( RANDOM % 8192) ))
cinfail=$(mktemp)
make_file "$cinfail" "client" $size
fi
if [ "$test_linkfail" -gt 2 ]; then
size=$test_linkfail
if [ -z "$sinfail" ]; then
sinfail=$(mktemp)
fi
make_file "$sinfail" "server" $size
elif [ "$test_linkfail" -eq 2 ] && [ -z "$sinfail" ]; then
size=$((RANDOM%16))
size=$((size+1))
size=$((size*2048))
sinfail=$(mktemp)
make_file "$sinfail" "server" $size
fi
do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP ${connect_addr}
}
dump_stats()
{
echo Server ns stats
ip netns exec $ns1 nstat -as | grep Tcp
echo Client ns stats
ip netns exec $ns2 nstat -as | grep Tcp
}
chk_csum_nr()
{
local csum_ns1=${1:-0}
local csum_ns2=${2:-0}
local count
local extra_msg=""
local allow_multi_errors_ns1=0
local allow_multi_errors_ns2=0
if [[ "${csum_ns1}" = "+"* ]]; then
allow_multi_errors_ns1=1
csum_ns1=${csum_ns1:1}
fi
if [[ "${csum_ns2}" = "+"* ]]; then
allow_multi_errors_ns2=1
csum_ns2=${csum_ns2:1}
fi
print_check "checksum server"
count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtDataCsumErr")
if [ -n "$count" ] && [ "$count" != "$csum_ns1" ]; then
extra_msg+=" ns1=$count"
fi
if [ -z "$count" ]; then
print_skip
elif { [ "$count" != $csum_ns1 ] && [ $allow_multi_errors_ns1 -eq 0 ]; } ||
{ [ "$count" -lt $csum_ns1 ] && [ $allow_multi_errors_ns1 -eq 1 ]; }; then
fail_test "got $count data checksum error[s] expected $csum_ns1"
else
print_ok
fi
print_check "checksum client"
count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtDataCsumErr")
if [ -n "$count" ] && [ "$count" != "$csum_ns2" ]; then
extra_msg+=" ns2=$count"
fi
if [ -z "$count" ]; then
print_skip
elif { [ "$count" != $csum_ns2 ] && [ $allow_multi_errors_ns2 -eq 0 ]; } ||
{ [ "$count" -lt $csum_ns2 ] && [ $allow_multi_errors_ns2 -eq 1 ]; }; then
fail_test "got $count data checksum error[s] expected $csum_ns2"
else
print_ok
fi
print_info "$extra_msg"
}
chk_fail_nr()
{
local fail_tx=$1
local fail_rx=$2
local ns_invert=${3:-""}
local count
local ns_tx=$ns1
local ns_rx=$ns2
local tx="server"
local rx="client"
local extra_msg=""
local allow_tx_lost=0
local allow_rx_lost=0
if [[ $ns_invert = "invert" ]]; then
ns_tx=$ns2
ns_rx=$ns1
tx="client"
rx="server"
fi
if [[ "${fail_tx}" = "-"* ]]; then
allow_tx_lost=1
fail_tx=${fail_tx:1}
fi
if [[ "${fail_rx}" = "-"* ]]; then
allow_rx_lost=1
fail_rx=${fail_rx:1}
fi
print_check "fail tx ${tx}"
count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPFailTx")
if [ -n "$count" ] && [ "$count" != "$fail_tx" ]; then
extra_msg+=" tx=$count"
fi
if [ -z "$count" ]; then
print_skip
elif { [ "$count" != "$fail_tx" ] && [ $allow_tx_lost -eq 0 ]; } ||
{ [ "$count" -gt "$fail_tx" ] && [ $allow_tx_lost -eq 1 ]; }; then
fail_test "got $count MP_FAIL[s] TX expected $fail_tx"
else
print_ok
fi
print_check "fail rx ${rx}"
count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPFailRx")
if [ -n "$count" ] && [ "$count" != "$fail_rx" ]; then
extra_msg+=" rx=$count"
fi
if [ -z "$count" ]; then
print_skip
elif { [ "$count" != "$fail_rx" ] && [ $allow_rx_lost -eq 0 ]; } ||
{ [ "$count" -gt "$fail_rx" ] && [ $allow_rx_lost -eq 1 ]; }; then
fail_test "got $count MP_FAIL[s] RX expected $fail_rx"
else
print_ok
fi
print_info "$extra_msg"
}
chk_fclose_nr()
{
local fclose_tx=$1
local fclose_rx=$2
local ns_invert=$3
local count
local ns_tx=$ns2
local ns_rx=$ns1
local tx="client"
local rx="server"
if [[ $ns_invert = "invert" ]]; then
ns_tx=$ns1
ns_rx=$ns2
tx="server"
rx="client"
fi
print_check "fast close tx ${tx}"
count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPFastcloseTx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$fclose_tx" ]; then
fail_test "got $count MP_FASTCLOSE[s] TX expected $fclose_tx"
else
print_ok
fi
print_check "fast close rx ${rx}"
count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPFastcloseRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$fclose_rx" ]; then
fail_test "got $count MP_FASTCLOSE[s] RX expected $fclose_rx"
else
print_ok
fi
}
chk_rst_nr()
{
local rst_tx=$1
local rst_rx=$2
local ns_invert=${3:-""}
local count
local ns_tx=$ns1
local ns_rx=$ns2
local tx="server"
local rx="client"
if [[ $ns_invert = "invert" ]]; then
ns_tx=$ns2
ns_rx=$ns1
tx="client"
rx="server"
fi
print_check "reset tx ${tx}"
count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPRstTx")
if [ -z "$count" ]; then
print_skip
# accept more rst than expected except if we don't expect any
elif { [ $rst_tx -ne 0 ] && [ $count -lt $rst_tx ]; } ||
{ [ $rst_tx -eq 0 ] && [ $count -ne 0 ]; }; then
fail_test "got $count MP_RST[s] TX expected $rst_tx"
else
print_ok
fi
print_check "reset rx ${rx}"
count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPRstRx")
if [ -z "$count" ]; then
print_skip
# accept more rst than expected except if we don't expect any
elif { [ $rst_rx -ne 0 ] && [ $count -lt $rst_rx ]; } ||
{ [ $rst_rx -eq 0 ] && [ $count -ne 0 ]; }; then
fail_test "got $count MP_RST[s] RX expected $rst_rx"
else
print_ok
fi
}
chk_infi_nr()
{
local infi_tx=$1
local infi_rx=$2
local count
print_check "infi tx client"
count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtInfiniteMapTx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$infi_tx" ]; then
fail_test "got $count infinite map[s] TX expected $infi_tx"
else
print_ok
fi
print_check "infi rx server"
count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtInfiniteMapRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$infi_rx" ]; then
fail_test "got $count infinite map[s] RX expected $infi_rx"
else
print_ok
fi
}
chk_join_tx_nr()
{
local syn_tx=${join_syn_tx:-0}
local create=${join_create_err:-0}
local bind=${join_bind_err:-0}
local connect=${join_connect_err:-0}
local rc=${KSFT_PASS}
local count
count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynTx")
if [ -z "$count" ]; then
rc=${KSFT_SKIP}
elif [ "$count" != "$syn_tx" ]; then
rc=${KSFT_FAIL}
print_check "syn tx"
fail_test "got $count JOIN[s] syn tx expected $syn_tx"
fi
count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynTxCreatSkErr")
if [ -z "$count" ]; then
rc=${KSFT_SKIP}
elif [ "$count" != "$create" ]; then
rc=${KSFT_FAIL}
print_check "syn tx create socket error"
fail_test "got $count JOIN[s] syn tx create socket error expected $create"
fi
count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynTxBindErr")
if [ -z "$count" ]; then
rc=${KSFT_SKIP}
elif [ "$count" != "$bind" ]; then
rc=${KSFT_FAIL}
print_check "syn tx bind error"
fail_test "got $count JOIN[s] syn tx bind error expected $bind"
fi
count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynTxConnectErr")
if [ -z "$count" ]; then
rc=${KSFT_SKIP}
elif [ "$count" != "$connect" ]; then
rc=${KSFT_FAIL}
print_check "syn tx connect error"
fail_test "got $count JOIN[s] syn tx connect error expected $connect"
fi
print_results "join Tx" ${rc}
}
chk_join_nr()
{
local syn_nr=$1
local syn_ack_nr=$2
local ack_nr=$3
local csum_ns1=${join_csum_ns1:-0}
local csum_ns2=${join_csum_ns2:-0}
local fail_nr=${join_fail_nr:-0}
local rst_nr=${join_rst_nr:-0}
local infi_nr=${join_infi_nr:-0}
local corrupted_pkts=${join_corrupted_pkts:-0}
local rc=${KSFT_PASS}
local count
local with_cookie
if [ "${corrupted_pkts}" -gt 0 ]; then
print_info "${corrupted_pkts} corrupted pkts"
fi
count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinSynRx")
if [ -z "$count" ]; then
rc=${KSFT_SKIP}
elif [ "$count" != "$syn_nr" ]; then
rc=${KSFT_FAIL}
print_check "syn rx"
fail_test "got $count JOIN[s] syn rx expected $syn_nr"
fi
with_cookie=$(ip netns exec $ns2 sysctl -n net.ipv4.tcp_syncookies)
count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynAckRx")
if [ -z "$count" ]; then
rc=${KSFT_SKIP}
elif [ "$count" != "$syn_ack_nr" ]; then
# simult connections exceeding the limit with cookie enabled could go up to
# synack validation as the conn limit can be enforced reliably only after
# the subflow creation
if [ "$with_cookie" != 2 ] || [ "$count" -le "$syn_ack_nr" ] || [ "$count" -gt "$syn_nr" ]; then
rc=${KSFT_FAIL}
print_check "synack rx"
fail_test "got $count JOIN[s] synack rx expected $syn_ack_nr"
fi
fi
count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinAckRx")
if [ -z "$count" ]; then
rc=${KSFT_SKIP}
elif [ "$count" != "$ack_nr" ]; then
rc=${KSFT_FAIL}
print_check "ack rx"
fail_test "got $count JOIN[s] ack rx expected $ack_nr"
fi
print_results "join Rx" ${rc}
join_syn_tx="${join_syn_tx:-${syn_nr}}" \
chk_join_tx_nr
if $validate_checksum; then
chk_csum_nr $csum_ns1 $csum_ns2
chk_fail_nr $fail_nr $fail_nr
chk_rst_nr $rst_nr $rst_nr
chk_infi_nr $infi_nr $infi_nr
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=$4
local dump_stats
local stale_nr
local recover_nr
print_check "stale"
stale_nr=$(mptcp_lib_get_counter ${ns} "MPTcpExtSubflowStale")
recover_nr=$(mptcp_lib_get_counter ${ns} "MPTcpExtSubflowRecover")
if [ -z "$stale_nr" ] || [ -z "$recover_nr" ]; then
print_skip
elif [ $stale_nr -lt $stale_min ] ||
{ [ $stale_max -gt 0 ] && [ $stale_nr -gt $stale_max ]; } ||
[ $((stale_nr - recover_nr)) -ne $stale_delta ]; then
fail_test "got $stale_nr stale[s] $recover_nr recover[s], " \
" expected stale in range [$stale_min..$stale_max]," \
" stale-recover delta $stale_delta"
dump_stats=1
else
print_ok
fi
if [ "${dump_stats}" = 1 ]; then
echo $ns stats
ip netns exec $ns ip -s link show
ip netns exec $ns nstat -as | grep MPTcp
fi
}
chk_add_nr()
{
local add_nr=$1
local echo_nr=$2
local port_nr=${3:-0}
local ns_invert=${4:-""}
local syn_nr=$port_nr
local syn_ack_nr=$port_nr
local ack_nr=$port_nr
local mis_syn_nr=0
local mis_ack_nr=0
local ns_tx=$ns1
local ns_rx=$ns2
local tx=""
local rx=""
local count
local timeout
if [[ $ns_invert = "invert" ]]; then
ns_tx=$ns2
ns_rx=$ns1
tx=" client"
rx=" server"
fi
timeout=$(ip netns exec ${ns_tx} sysctl -n net.mptcp.add_addr_timeout)
print_check "add addr rx${rx}"
count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtAddAddr")
if [ -z "$count" ]; then
print_skip
# if the test configured a short timeout tolerate greater then expected
# add addrs options, due to retransmissions
elif [ "$count" != "$add_nr" ] && { [ "$timeout" -gt 1 ] || [ "$count" -lt "$add_nr" ]; }; then
fail_test "got $count ADD_ADDR[s] expected $add_nr"
else
print_ok
fi
print_check "add addr echo rx${tx}"
count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtEchoAdd")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$echo_nr" ]; then
fail_test "got $count ADD_ADDR echo[s] expected $echo_nr"
else
print_ok
fi
if [ $port_nr -gt 0 ]; then
print_check "add addr rx with port${rx}"
count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtPortAdd")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$port_nr" ]; then
fail_test "got $count ADD_ADDR[s] with a port-number expected $port_nr"
else
print_ok
fi
print_check "syn rx port${tx}"
count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPJoinPortSynRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$syn_nr" ]; then
fail_test "got $count JOIN[s] syn with a different \
port-number expected $syn_nr"
else
print_ok
fi
print_check "synack rx port${rx}"
count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPJoinPortSynAckRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$syn_ack_nr" ]; then
fail_test "got $count JOIN[s] synack with a different \
port-number expected $syn_ack_nr"
else
print_ok
fi
print_check "ack rx port${tx}"
count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPJoinPortAckRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$ack_nr" ]; then
fail_test "got $count JOIN[s] ack with a different \
port-number expected $ack_nr"
else
print_ok
fi
print_check "syn rx port mismatch${tx}"
count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMismatchPortSynRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$mis_syn_nr" ]; then
fail_test "got $count JOIN[s] syn with a mismatched \
port-number expected $mis_syn_nr"
else
print_ok
fi
print_check "ack rx port mismatch${tx}"
count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMismatchPortAckRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$mis_ack_nr" ]; then
fail_test "got $count JOIN[s] ack with a mismatched \
port-number expected $mis_ack_nr"
else
print_ok
fi
fi
}
chk_add_tx_nr()
{
local add_tx_nr=$1
local echo_tx_nr=$2
local timeout
local count
timeout=$(ip netns exec $ns1 sysctl -n net.mptcp.add_addr_timeout)
print_check "add addr tx"
count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtAddAddrTx")
if [ -z "$count" ]; then
print_skip
# if the test configured a short timeout tolerate greater then expected
# add addrs options, due to retransmissions
elif [ "$count" != "$add_tx_nr" ] && { [ "$timeout" -gt 1 ] || [ "$count" -lt "$add_tx_nr" ]; }; then
fail_test "got $count ADD_ADDR[s] TX, expected $add_tx_nr"
else
print_ok
fi
print_check "add addr echo tx"
count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtEchoAddTx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$echo_tx_nr" ]; then
fail_test "got $count ADD_ADDR echo[s] TX, expected $echo_tx_nr"
else
print_ok
fi
}
chk_rm_nr()
{
local rm_addr_nr=$1
local rm_subflow_nr=$2
local invert
local simult
local count
local addr_ns=$ns1
local subflow_ns=$ns2
local addr="server"
local subflow="client"
local extra_msg=""
shift 2
while [ -n "$1" ]; do
[ "$1" = "invert" ] && invert=true
[ "$1" = "simult" ] && simult=true
shift
done
if [ "$invert" = "true" ]; then
addr_ns=$ns2
subflow_ns=$ns1
addr="client"
subflow="server"
fi
print_check "rm addr rx ${addr}"
count=$(mptcp_lib_get_counter ${addr_ns} "MPTcpExtRmAddr")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$rm_addr_nr" ]; then
fail_test "got $count RM_ADDR[s] expected $rm_addr_nr"
else
print_ok
fi
print_check "rm subflow ${subflow}"
count=$(mptcp_lib_get_counter ${subflow_ns} "MPTcpExtRmSubflow")
if [ -z "$count" ]; then
print_skip
elif [ -n "$simult" ]; then
local cnt suffix
cnt=$(mptcp_lib_get_counter ${addr_ns} "MPTcpExtRmSubflow")
# in case of simult flush, the subflow removal count on each side is
# unreliable
count=$((count + cnt))
if [ "$count" != "$rm_subflow_nr" ]; then
suffix="$count in [$rm_subflow_nr:$((rm_subflow_nr*2))]"
extra_msg="simult"
fi
if [ $count -ge "$rm_subflow_nr" ] && \
[ "$count" -le "$((rm_subflow_nr *2 ))" ]; then
print_ok "$suffix"
else
fail_test "got $count RM_SUBFLOW[s] expected in range [$rm_subflow_nr:$((rm_subflow_nr*2))]"
fi
elif [ "$count" != "$rm_subflow_nr" ]; then
fail_test "got $count RM_SUBFLOW[s] expected $rm_subflow_nr"
else
print_ok
fi
print_info "$extra_msg"
}
chk_rm_tx_nr()
{
local rm_addr_tx_nr=$1
print_check "rm addr tx client"
count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtRmAddrTx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$rm_addr_tx_nr" ]; then
fail_test "got $count RM_ADDR[s] expected $rm_addr_tx_nr"
else
print_ok
fi
}
chk_prio_nr()
{
local mp_prio_nr_tx=$1
local mp_prio_nr_rx=$2
local mpj_syn=$3
local mpj_syn_ack=$4
local count
print_check "mp_prio tx server"
count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPPrioTx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$mp_prio_nr_tx" ]; then
fail_test "got $count MP_PRIO[s] TX expected $mp_prio_nr_tx"
else
print_ok
fi
print_check "mp_prio rx client"
count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPPrioRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$mp_prio_nr_rx" ]; then
fail_test "got $count MP_PRIO[s] RX expected $mp_prio_nr_rx"
else
print_ok
fi
print_check "syn backup"
count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinSynBackupRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$mpj_syn" ]; then
fail_test "got $count JOIN[s] syn with Backup expected $mpj_syn"
else
print_ok
fi
print_check "synack backup"
count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynAckBackupRx")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$mpj_syn_ack" ]; then
fail_test "got $count JOIN[s] synack with Backup expected $mpj_syn_ack"
else
print_ok
fi
}
chk_subflow_nr()
{
local msg="$1"
local subflow_nr=$2
local cnt1
local cnt2
local dump_stats
print_check "${msg}"
cnt1=$(ss -N $ns1 -tOni | grep -c token)
cnt2=$(ss -N $ns2 -tOni | grep -c token)
if [ "$cnt1" != "$subflow_nr" ] || [ "$cnt2" != "$subflow_nr" ]; then
fail_test "got $cnt1:$cnt2 subflows expected $subflow_nr"
dump_stats=1
else
print_ok
fi
if [ "${dump_stats}" = 1 ]; then
ss -N $ns1 -tOni
ss -N $ns1 -tOni | grep token
ip -n $ns1 mptcp endpoint
fi
}
chk_mptcp_info()
{
local info1=$1
local exp1=$2
local info2=$3
local exp2=$4
local cnt1
local cnt2
local dump_stats
print_check "mptcp_info ${info1:0:15}=$exp1:$exp2"
cnt1=$(ss -N $ns1 -inmHM | mptcp_lib_get_info_value "$info1" "$info1")
cnt2=$(ss -N $ns2 -inmHM | mptcp_lib_get_info_value "$info2" "$info2")
# 'ss' only display active connections and counters that are not 0.
[ -z "$cnt1" ] && cnt1=0
[ -z "$cnt2" ] && cnt2=0
if [ "$cnt1" != "$exp1" ] || [ "$cnt2" != "$exp2" ]; then
fail_test "got $cnt1:$cnt2 $info1:$info2 expected $exp1:$exp2"
dump_stats=1
else
print_ok
fi
if [ "$dump_stats" = 1 ]; then
ss -N $ns1 -inmHM
ss -N $ns2 -inmHM
fi
}
# $1: subflows in ns1 ; $2: subflows in ns2
# number of all subflows, including the initial subflow.
chk_subflows_total()
{
local cnt1
local cnt2
local info="subflows_total"
local dump_stats
# if subflows_total counter is supported, use it:
if [ -n "$(ss -N $ns1 -inmHM | mptcp_lib_get_info_value $info $info)" ]; then
chk_mptcp_info $info $1 $info $2
return
fi
print_check "$info $1:$2"
# if not, count the TCP connections that are in fact MPTCP subflows
cnt1=$(ss -N $ns1 -ti state established state syn-sent state syn-recv |
grep -c tcp-ulp-mptcp)
cnt2=$(ss -N $ns2 -ti state established state syn-sent state syn-recv |
grep -c tcp-ulp-mptcp)
if [ "$1" != "$cnt1" ] || [ "$2" != "$cnt2" ]; then
fail_test "got subflows $cnt1:$cnt2 expected $1:$2"
dump_stats=1
else
print_ok
fi
if [ "$dump_stats" = 1 ]; then
ss -N $ns1 -ti
ss -N $ns2 -ti
fi
}
chk_link_usage()
{
local ns=$1
local link=$2
local out=$3
local expected_rate=$4
local tx_link tx_total
tx_link=$(ip netns exec $ns cat /sys/class/net/$link/statistics/tx_bytes)
tx_total=$(stat --format=%s $out)
local tx_rate=$((tx_link * 100 / tx_total))
local tolerance=5
print_check "link usage"
if [ $tx_rate -lt $((expected_rate - tolerance)) ] || \
[ $tx_rate -gt $((expected_rate + tolerance)) ]; then
fail_test "got $tx_rate% usage, expected $expected_rate%"
else
print_ok
fi
}
wait_attempt_fail()
{
local timeout_ms=$((timeout_poll * 1000))
local time=0
local ns=$1
while [ $time -lt $timeout_ms ]; do
local cnt
cnt=$(mptcp_lib_get_counter ${ns} "TcpAttemptFails")
[ "$cnt" = 1 ] && return 1
time=$((time + 100))
sleep 0.1
done
return 1
}
set_userspace_pm()
{
local ns=$1
ip netns exec $ns sysctl -q net.mptcp.pm_type=1
}
subflows_tests()
{
if reset "no JOIN"; then
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
fi
# subflow limited by client
if reset "single subflow, limited by client"; then
pm_nl_set_limits $ns1 0 0
pm_nl_set_limits $ns2 0 0
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
fi
# subflow limited by server
if reset "single subflow, limited by server"; then
pm_nl_set_limits $ns1 0 0
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 0
fi
# subflow
if reset "single subflow"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
fi
# multiple subflows
if reset "multiple subflows"; then
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 0 2
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
fi
# multiple subflows limited by server
if reset "multiple subflows, limited by server"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 2
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 1
fi
# single subflow, dev
if reset "single subflow, dev"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow dev ns2eth3
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
fi
}
subflows_error_tests()
{
# If a single subflow is configured, and matches the MPC src
# address, no additional subflow should be created
if reset "no MPC reuse with single endpoint"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.12.2 flags subflow
speed=slow \
run_tests $ns1 $ns2 10.0.1.1
join_bind_err=1 \
chk_join_nr 0 0 0
fi
# multiple subflows, with subflow creation error
if reset_with_tcp_filter "multi subflows, with failing subflow" ns1 10.0.3.2 REJECT &&
continue_if mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 0 2
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
speed=slow \
run_tests $ns1 $ns2 10.0.1.1
join_syn_tx=2 \
chk_join_nr 1 1 1
fi
# multiple subflows, with subflow timeout on MPJ
if reset_with_tcp_filter "multi subflows, with subflow timeout" ns1 10.0.3.2 DROP &&
continue_if mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 0 2
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
speed=slow \
run_tests $ns1 $ns2 10.0.1.1
join_syn_tx=2 \
chk_join_nr 1 1 1
fi
# multiple subflows, check that the endpoint corresponding to
# closed subflow (due to reset) is not reused if additional
# subflows are added later
if reset_with_tcp_filter "multi subflows, fair usage on close" ns1 10.0.3.2 REJECT &&
continue_if mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
speed=slow \
run_tests $ns1 $ns2 10.0.1.1 &
# mpj subflow will be in TW after the reset
wait_attempt_fail $ns2
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
wait
# additional subflow could be created only if the PM select
# the later endpoint, skipping the already used one
join_syn_tx=2 \
chk_join_nr 1 1 1
fi
}
signal_address_tests()
{
# add_address, unused
if reset "unused signal address"; then
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
chk_add_tx_nr 1 1
chk_add_nr 1 1
fi
# accept and use add_addr
if reset "signal address"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1
fi
# accept and use add_addr with an additional subflow
# note: signal address in server ns and local addresses in client ns must
# belong to different subnets or one of the listed local address could be
# used for 'add_addr' subflow
if reset "subflow and signal"; then
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 1 2
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_add_nr 1 1
fi
# uncommon: subflow and signal flags on the same endpoint
# or because the user wrongly picked both, but still expects the client
# to create additional subflows
if reset "subflow and signal together"; then
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 0 2
pm_nl_add_endpoint $ns2 10.0.3.2 flags signal,subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1 0 invert # only initiated by ns2
chk_add_nr 0 0 0 # none initiated by ns1
chk_rst_nr 0 0 invert # no RST sent by the client
chk_rst_nr 0 0 # no RST sent by the server
fi
# accept and use add_addr with additional subflows
if reset "multiple subflows and signal"; then
pm_nl_set_limits $ns1 0 3
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_set_limits $ns2 1 3
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
chk_add_nr 1 1
fi
# signal addresses
if reset "signal addresses"; then
pm_nl_set_limits $ns1 3 3
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
pm_nl_set_limits $ns2 3 3
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
chk_add_nr 3 3
fi
# signal invalid addresses
if reset "signal invalid addresses"; then
pm_nl_set_limits $ns1 3 3
pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
pm_nl_add_endpoint $ns1 10.0.14.1 flags signal
pm_nl_set_limits $ns2 3 3
run_tests $ns1 $ns2 10.0.1.1
join_syn_tx=3 \
chk_join_nr 1 1 1
chk_add_nr 3 3
fi
# signal addresses race test
if reset "signal addresses race test"; then
pm_nl_set_limits $ns1 4 4
pm_nl_set_limits $ns2 4 4
pm_nl_add_endpoint $ns1 10.0.1.1 flags signal
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
pm_nl_add_endpoint $ns2 10.0.1.2 flags signal
pm_nl_add_endpoint $ns2 10.0.2.2 flags signal
pm_nl_add_endpoint $ns2 10.0.3.2 flags signal
pm_nl_add_endpoint $ns2 10.0.4.2 flags signal
# the peer could possibly miss some addr notification, allow retransmission
ip netns exec $ns1 sysctl -q net.mptcp.add_addr_timeout=1
speed=slow \
run_tests $ns1 $ns2 10.0.1.1
# It is not directly linked to the commit introducing this
# symbol but for the parent one which is linked anyway.
if ! mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
chk_join_nr 3 3 2
chk_add_nr 4 4
else
chk_join_nr 3 3 3
# the server will not signal the address terminating
# the MPC subflow
chk_add_nr 3 3
fi
fi
}
link_failure_tests()
{
# accept and use add_addr with additional subflows and link loss
if reset "multiple flows, signal, link failure"; then
# 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
pm_nl_set_limits $ns1 0 3
pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
pm_nl_set_limits $ns2 1 3
pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow
pm_nl_add_endpoint $ns2 10.0.4.2 dev ns2eth4 flags subflow
test_linkfail=1 \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
chk_add_nr 1 1
chk_stale_nr $ns2 1 5 1
fi
# accept and use add_addr with additional subflows and link loss
# for bidirectional transfer
if reset "multi flows, signal, bidi, link fail"; then
init_shapers
pm_nl_set_limits $ns1 0 3
pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
pm_nl_set_limits $ns2 1 3
pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow
pm_nl_add_endpoint $ns2 10.0.4.2 dev ns2eth4 flags subflow
test_linkfail=2 \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
chk_add_nr 1 1
chk_stale_nr $ns2 1 -1 1
fi
# 2 subflows plus 1 backup subflow with a lossy link, backup
# will never be used
if reset "backup subflow unused, link failure"; then
init_shapers
pm_nl_set_limits $ns1 0 2
pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
pm_nl_set_limits $ns2 1 2
pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow,backup
FAILING_LINKS="1" test_linkfail=1 \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_add_nr 1 1
chk_link_usage $ns2 ns2eth3 $cinsent 0
fi
# 2 lossy links after half transfer, backup will get half of
# the traffic
if reset "backup flow used, multi links fail"; then
init_shapers
pm_nl_set_limits $ns1 0 2
pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
pm_nl_set_limits $ns2 1 2
pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow,backup
FAILING_LINKS="1 2" test_linkfail=1 \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_add_nr 1 1
chk_stale_nr $ns2 2 4 2
chk_link_usage $ns2 ns2eth3 $cinsent 50
fi
# use a backup subflow with the first subflow on a lossy link
# for bidirectional transfer
if reset "backup flow used, bidi, link failure"; then
init_shapers
pm_nl_set_limits $ns1 0 2
pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
pm_nl_set_limits $ns2 1 3
pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow,backup
FAILING_LINKS="1 2" test_linkfail=2 \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_add_nr 1 1
chk_stale_nr $ns2 1 -1 2
chk_link_usage $ns2 ns2eth3 $cinsent 50
fi
}
add_addr_timeout_tests()
{
# add_addr timeout
if reset_with_add_addr_timeout "signal address, ADD_ADDR timeout"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_tx_nr 4 4
chk_add_nr 4 0
fi
# add_addr timeout IPv6
if reset_with_add_addr_timeout "signal address, ADD_ADDR6 timeout" 6; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
speed=slow \
run_tests $ns1 $ns2 dead:beef:1::1
chk_join_nr 1 1 1
chk_add_nr 4 0
fi
# signal addresses timeout
if reset_with_add_addr_timeout "signal addresses, ADD_ADDR timeout"; then
pm_nl_set_limits $ns1 2 2
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
pm_nl_set_limits $ns2 2 2
speed=10 \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_add_nr 8 0
fi
# signal invalid addresses timeout
if reset_with_add_addr_timeout "invalid address, ADD_ADDR timeout"; then
pm_nl_set_limits $ns1 2 2
pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
pm_nl_set_limits $ns2 2 2
speed=10 \
run_tests $ns1 $ns2 10.0.1.1
join_syn_tx=2 \
chk_join_nr 1 1 1
chk_add_nr 8 0
fi
}
remove_tests()
{
# single subflow, remove
if reset "remove single subflow"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
addr_nr_ns2=-1 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_rm_tx_nr 1
chk_rm_nr 1 1
chk_rst_nr 0 0
fi
# multiple subflows, remove
if reset "remove multiple subflows"; then
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 0 2
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
addr_nr_ns2=-2 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_rm_nr 2 2
chk_rst_nr 0 0
fi
# single address, remove
if reset "remove single address"; then
pm_nl_set_limits $ns1 0 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_set_limits $ns2 1 1
addr_nr_ns1=-1 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1
chk_rm_nr 1 1 invert
chk_rst_nr 0 0
fi
# subflow and signal, remove
if reset "remove subflow and signal"; then
pm_nl_set_limits $ns1 0 2
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_set_limits $ns2 1 2
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
addr_nr_ns1=-1 addr_nr_ns2=-1 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_add_nr 1 1
chk_rm_nr 1 1
chk_rst_nr 0 0
fi
# subflows and signal, remove
if reset "remove subflows and signal"; then
pm_nl_set_limits $ns1 0 3
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_set_limits $ns2 1 3
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
addr_nr_ns1=-1 addr_nr_ns2=-2 speed=10 \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
chk_add_nr 1 1
chk_rm_nr 2 2
chk_rst_nr 0 0
fi
# addresses remove
if reset "remove addresses"; then
pm_nl_set_limits $ns1 3 3
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal id 250
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
pm_nl_set_limits $ns2 3 3
addr_nr_ns1=-3 speed=10 \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
chk_add_nr 3 3
chk_rm_nr 3 3 invert
chk_rst_nr 0 0
fi
# invalid addresses remove
if reset "remove invalid addresses"; then
pm_nl_set_limits $ns1 3 3
pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
# broadcast IP: no packet for this address will be received on ns1
pm_nl_add_endpoint $ns1 224.0.0.1 flags signal
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
pm_nl_set_limits $ns2 2 2
addr_nr_ns1=-3 speed=10 \
run_tests $ns1 $ns2 10.0.1.1
join_syn_tx=2 join_connect_err=1 \
chk_join_nr 1 1 1
chk_add_nr 3 3
chk_rm_nr 3 1 invert
chk_rst_nr 0 0
fi
# subflows and signal, flush
if reset "flush subflows and signal"; then
pm_nl_set_limits $ns1 0 3
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_set_limits $ns2 1 3
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
chk_add_nr 1 1
chk_rm_nr 1 3 invert simult
chk_rst_nr 0 0
fi
# subflows flush
if reset "flush subflows"; then
pm_nl_set_limits $ns1 3 3
pm_nl_set_limits $ns2 3 3
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow id 150
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
if mptcp_lib_kversion_ge 5.18; then
chk_rm_tx_nr 0
chk_rm_nr 0 3 simult
else
chk_rm_nr 3 3
fi
chk_rst_nr 0 0
fi
# addresses flush
if reset "flush addresses"; then
pm_nl_set_limits $ns1 3 3
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal id 250
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
pm_nl_set_limits $ns2 3 3
addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
chk_add_nr 3 3
chk_rm_nr 3 3 invert simult
chk_rst_nr 0 0
fi
# invalid addresses flush
if reset "flush invalid addresses"; then
pm_nl_set_limits $ns1 3 3
pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
pm_nl_add_endpoint $ns1 10.0.14.1 flags signal
pm_nl_set_limits $ns2 3 3
addr_nr_ns1=-8 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
join_syn_tx=3 \
chk_join_nr 1 1 1
chk_add_nr 3 3
chk_rm_nr 3 1 invert
chk_rst_nr 0 0
fi
# remove id 0 subflow
if reset "remove id 0 subflow"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
addr_nr_ns2=-9 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_rm_nr 1 1
chk_rst_nr 0 0
fi
# remove id 0 address
if reset "remove id 0 address"; then
pm_nl_set_limits $ns1 0 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_set_limits $ns2 1 1
addr_nr_ns1=-9 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1
chk_rm_nr 1 1 invert
chk_rst_nr 0 0 invert
fi
}
add_tests()
{
# add single subflow
if reset "add single subflow"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
addr_nr_ns2=1 speed=slow cestab_ns2=1 \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_cestab_nr $ns2 0
fi
# add signal address
if reset "add signal address"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 1 1
addr_nr_ns1=1 speed=slow cestab_ns1=1 \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1
chk_cestab_nr $ns1 0
fi
# add multiple subflows
if reset "add multiple subflows"; then
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 0 2
addr_nr_ns2=2 speed=slow cestab_ns2=1 \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_cestab_nr $ns2 0
fi
# add multiple subflows IPv6
if reset "add multiple subflows IPv6"; then
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 0 2
addr_nr_ns2=2 speed=slow cestab_ns2=1 \
run_tests $ns1 $ns2 dead:beef:1::1
chk_join_nr 2 2 2
chk_cestab_nr $ns2 0
fi
# add multiple addresses IPv6
if reset "add multiple addresses IPv6"; then
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 2 2
addr_nr_ns1=2 speed=slow cestab_ns1=1 \
run_tests $ns1 $ns2 dead:beef:1::1
chk_join_nr 2 2 2
chk_add_nr 2 2
chk_cestab_nr $ns1 0
fi
}
ipv6_tests()
{
# subflow IPv6
if reset "single subflow IPv6"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 dead:beef:3::2 dev ns2eth3 flags subflow
speed=slow \
run_tests $ns1 $ns2 dead:beef:1::1
chk_join_nr 1 1 1
fi
# add_address, unused IPv6
if reset "unused signal address IPv6"; then
pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
speed=slow \
run_tests $ns1 $ns2 dead:beef:1::1
chk_join_nr 0 0 0
chk_add_nr 1 1
fi
# signal address IPv6
if reset "single address IPv6"; then
pm_nl_set_limits $ns1 0 1
pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
pm_nl_set_limits $ns2 1 1
speed=slow \
run_tests $ns1 $ns2 dead:beef:1::1
chk_join_nr 1 1 1
chk_add_nr 1 1
fi
# single address IPv6, remove
if reset "remove single address IPv6"; then
pm_nl_set_limits $ns1 0 1
pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
pm_nl_set_limits $ns2 1 1
addr_nr_ns1=-1 speed=slow \
run_tests $ns1 $ns2 dead:beef:1::1
chk_join_nr 1 1 1
chk_add_nr 1 1
chk_rm_nr 1 1 invert
fi
# subflow and signal IPv6, remove
if reset "remove subflow and signal IPv6"; then
pm_nl_set_limits $ns1 0 2
pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
pm_nl_set_limits $ns2 1 2
pm_nl_add_endpoint $ns2 dead:beef:3::2 dev ns2eth3 flags subflow
addr_nr_ns1=-1 addr_nr_ns2=-1 speed=slow \
run_tests $ns1 $ns2 dead:beef:1::1
chk_join_nr 2 2 2
chk_add_nr 1 1
chk_rm_nr 1 1
fi
}
v4mapped_tests()
{
# subflow IPv4-mapped to IPv4-mapped
if reset "single subflow IPv4-mapped"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 "::ffff:10.0.3.2" flags subflow
run_tests $ns1 $ns2 "::ffff:10.0.1.1"
chk_join_nr 1 1 1
fi
# signal address IPv4-mapped with IPv4-mapped sk
if reset "signal address IPv4-mapped"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns1 "::ffff:10.0.2.1" flags signal
run_tests $ns1 $ns2 "::ffff:10.0.1.1"
chk_join_nr 1 1 1
chk_add_nr 1 1
fi
# subflow v4-map-v6
if reset "single subflow v4-map-v6"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 "::ffff:10.0.1.1"
chk_join_nr 1 1 1
fi
# signal address v4-map-v6
if reset "signal address v4-map-v6"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
run_tests $ns1 $ns2 "::ffff:10.0.1.1"
chk_join_nr 1 1 1
chk_add_nr 1 1
fi
# subflow v6-map-v4
if reset "single subflow v6-map-v4"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 "::ffff:10.0.3.2" flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
fi
# signal address v6-map-v4
if reset "signal address v6-map-v4"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns1 "::ffff:10.0.2.1" flags signal
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1
fi
# no subflow IPv6 to v4 address
if reset "no JOIN with diff families v4-v6"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 dead:beef:2::2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
fi
# no subflow IPv6 to v4 address even if v6 has a valid v4 at the end
if reset "no JOIN with diff families v4-v6-2"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 dead:beef:2::10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
fi
# no subflow IPv4 to v6 address, no need to slow down too then
if reset "no JOIN with diff families v6-v4"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 dead:beef:1::1
chk_join_nr 0 0 0
fi
}
mixed_tests()
{
if reset "IPv4 sockets do not use IPv6 addresses" &&
continue_if mptcp_lib_kversion_ge 6.3; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
fi
# Need an IPv6 mptcp socket to allow subflows of both families
if reset "simult IPv4 and IPv6 subflows" &&
continue_if mptcp_lib_kversion_ge 6.3; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns1 10.0.1.1 flags signal
speed=slow \
run_tests $ns1 $ns2 dead:beef:2::1
chk_join_nr 1 1 1
fi
# cross families subflows will not be created even in fullmesh mode
if reset "simult IPv4 and IPv6 subflows, fullmesh 1x1" &&
continue_if mptcp_lib_kversion_ge 6.3; then
pm_nl_set_limits $ns1 0 4
pm_nl_set_limits $ns2 1 4
pm_nl_add_endpoint $ns2 dead:beef:2::2 flags subflow,fullmesh
pm_nl_add_endpoint $ns1 10.0.1.1 flags signal
speed=slow \
run_tests $ns1 $ns2 dead:beef:2::1
chk_join_nr 1 1 1
fi
# fullmesh still tries to create all the possibly subflows with
# matching family
if reset "simult IPv4 and IPv6 subflows, fullmesh 2x2" &&
continue_if mptcp_lib_kversion_ge 6.3; then
pm_nl_set_limits $ns1 0 4
pm_nl_set_limits $ns2 2 4
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
fullmesh=1 speed=slow \
run_tests $ns1 $ns2 dead:beef:1::1
chk_join_nr 4 4 4
fi
}
backup_tests()
{
# single subflow, backup
if reset "single subflow, backup" &&
continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
sflags=nobackup speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_prio_nr 0 1 1 0
fi
# single address, backup
if reset "single address, backup" &&
continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
pm_nl_set_limits $ns1 0 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
pm_nl_set_limits $ns2 1 1
sflags=nobackup speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1
chk_prio_nr 1 0 0 1
fi
# single address, switch to backup
if reset "single address, switch to backup" &&
continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
pm_nl_set_limits $ns1 0 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_set_limits $ns2 1 1
sflags=backup speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1
chk_prio_nr 1 1 0 0
fi
# single address with port, backup
if reset "single address with port, backup" &&
continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
pm_nl_set_limits $ns1 0 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup port 10100
pm_nl_set_limits $ns2 1 1
sflags=nobackup speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1
chk_prio_nr 1 0 0 1
fi
if reset "mpc backup" &&
continue_if mptcp_lib_kallsyms_doesnt_have "T mptcp_subflow_send_ack$"; then
pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,backup
speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
chk_prio_nr 0 1 0 0
fi
if reset "mpc backup both sides" &&
continue_if mptcp_lib_kallsyms_doesnt_have "T mptcp_subflow_send_ack$"; then
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 1 2
pm_nl_add_endpoint $ns1 10.0.1.1 flags signal,backup
pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,backup
# 10.0.2.2 (non-backup) -> 10.0.1.1 (backup)
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
# 10.0.1.2 (backup) -> 10.0.2.1 (non-backup)
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
ip -net "$ns2" route add 10.0.2.1 via 10.0.1.1 dev ns2eth1 # force this path
speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_prio_nr 1 1 1 1
fi
if reset "mpc switch to backup" &&
continue_if mptcp_lib_kallsyms_doesnt_have "T mptcp_subflow_send_ack$"; then
pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow
sflags=backup speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
chk_prio_nr 0 1 0 0
fi
if reset "mpc switch to backup both sides" &&
continue_if mptcp_lib_kallsyms_doesnt_have "T mptcp_subflow_send_ack$"; then
pm_nl_add_endpoint $ns1 10.0.1.1 flags subflow
pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow
sflags=backup speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
chk_prio_nr 1 1 0 0
fi
}
verify_listener_events()
{
local e_type=$2
local e_saddr=$4
local e_sport=$5
local name
if [ $e_type = $MPTCP_LIB_EVENT_LISTENER_CREATED ]; then
name="LISTENER_CREATED"
elif [ $e_type = $MPTCP_LIB_EVENT_LISTENER_CLOSED ]; then
name="LISTENER_CLOSED "
else
name="$e_type"
fi
print_check "$name $e_saddr:$e_sport"
if ! mptcp_lib_kallsyms_has "mptcp_event_pm_listener$"; then
print_skip "event not supported"
return
fi
if mptcp_lib_verify_listener_events "${@}"; then
print_ok
return 0
fi
fail_test
}
add_addr_ports_tests()
{
# signal address with port
if reset "signal address with port"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1 1
fi
# subflow and signal with port
if reset "subflow and signal with port"; then
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 1 2
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_add_nr 1 1 1
fi
# single address with port, remove
# pm listener events
if reset_with_events "remove single address with port"; then
pm_nl_set_limits $ns1 0 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
pm_nl_set_limits $ns2 1 1
addr_nr_ns1=-1 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1 1
chk_rm_nr 1 1 invert
verify_listener_events $evts_ns1 $MPTCP_LIB_EVENT_LISTENER_CREATED \
$MPTCP_LIB_AF_INET 10.0.2.1 10100
verify_listener_events $evts_ns1 $MPTCP_LIB_EVENT_LISTENER_CLOSED \
$MPTCP_LIB_AF_INET 10.0.2.1 10100
kill_events_pids
fi
# subflow and signal with port, remove
if reset "remove subflow and signal with port"; then
pm_nl_set_limits $ns1 0 2
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
pm_nl_set_limits $ns2 1 2
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
addr_nr_ns1=-1 addr_nr_ns2=-1 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_add_nr 1 1 1
chk_rm_nr 1 1
fi
# subflows and signal with port, flush
if reset "flush subflows and signal with port"; then
pm_nl_set_limits $ns1 0 3
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
pm_nl_set_limits $ns2 1 3
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
addr_nr_ns1=-8 addr_nr_ns2=-2 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
chk_add_nr 1 1
chk_rm_nr 1 3 invert simult
fi
# multiple addresses with port
if reset "multiple addresses with port"; then
pm_nl_set_limits $ns1 2 2
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal port 10100
pm_nl_set_limits $ns2 2 2
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_add_nr 2 2 2
fi
# multiple addresses with ports
if reset "multiple addresses with ports"; then
pm_nl_set_limits $ns1 2 2
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal port 10101
pm_nl_set_limits $ns2 2 2
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_add_nr 2 2 2
fi
}
syncookies_tests()
{
# single subflow, syncookies
if reset_with_cookies "single subflow with syn cookies"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
fi
# multiple subflows with syn cookies
if reset_with_cookies "multiple subflows with syn cookies"; then
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 0 2
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
fi
# multiple subflows limited by server
if reset_with_cookies "subflows limited by server w cookies"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 2
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 1 1
fi
# test signal address with cookies
if reset_with_cookies "signal address with syn cookies"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1
fi
# test cookie with subflow and signal
if reset_with_cookies "subflow and signal w cookies"; then
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 1 2
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_add_nr 1 1
fi
# accept and use add_addr with additional subflows
if reset_with_cookies "subflows and signal w. cookies"; then
pm_nl_set_limits $ns1 0 3
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_set_limits $ns2 1 3
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
chk_add_nr 1 1
fi
}
checksum_tests()
{
local checksum_enable
for checksum_enable in "0 0" "1 1" "0 1" "1 0"; do
# checksum test 0 0, 1 1, 0 1, 1 0
if reset_with_checksum ${checksum_enable}; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
fi
done
}
deny_join_id0_tests()
{
# subflow allow join id0 ns1
if reset_with_allow_join_id0 "single subflow allow join id0 ns1" 1 0; then
pm_nl_set_limits $ns1 1 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
fi
# subflow allow join id0 ns2
if reset_with_allow_join_id0 "single subflow allow join id0 ns2" 0 1; then
pm_nl_set_limits $ns1 1 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
fi
# signal address allow join id0 ns1
# ADD_ADDRs are not affected by allow_join_id0 value.
if reset_with_allow_join_id0 "signal address allow join id0 ns1" 1 0; then
pm_nl_set_limits $ns1 1 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1
fi
# signal address allow join id0 ns2
# ADD_ADDRs are not affected by allow_join_id0 value.
if reset_with_allow_join_id0 "signal address allow join id0 ns2" 0 1; then
pm_nl_set_limits $ns1 1 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
chk_add_nr 1 1
fi
# subflow and address allow join id0 ns1
if reset_with_allow_join_id0 "subflow and address allow join id0 1" 1 0; then
pm_nl_set_limits $ns1 2 2
pm_nl_set_limits $ns2 2 2
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
fi
# subflow and address allow join id0 ns2
if reset_with_allow_join_id0 "subflow and address allow join id0 2" 0 1; then
pm_nl_set_limits $ns1 2 2
pm_nl_set_limits $ns2 2 2
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
fi
}
fullmesh_tests()
{
# fullmesh 1
# 2 fullmesh addrs in ns2, added before the connection,
# 1 non-fullmesh addr in ns1, added during the connection.
if reset "fullmesh test 2x1"; then
pm_nl_set_limits $ns1 0 4
pm_nl_set_limits $ns2 1 4
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,fullmesh
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,fullmesh
addr_nr_ns1=1 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 4 4 4
chk_add_nr 1 1
fi
# fullmesh 2
# 1 non-fullmesh addr in ns1, added before the connection,
# 1 fullmesh addr in ns2, added during the connection.
if reset "fullmesh test 1x1"; then
pm_nl_set_limits $ns1 1 3
pm_nl_set_limits $ns2 1 3
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
if mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,fullmesh
fi
fullmesh=1 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
chk_add_nr 1 1
fi
# fullmesh 3
# 1 non-fullmesh addr in ns1, added before the connection,
# 2 fullmesh addrs in ns2, added during the connection.
if reset "fullmesh test 1x2"; then
pm_nl_set_limits $ns1 2 5
pm_nl_set_limits $ns2 1 5
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
fullmesh=2 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 5 5 5
chk_add_nr 1 1
fi
# 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.
if reset "fullmesh test 1x2, limited"; then
pm_nl_set_limits $ns1 2 4
pm_nl_set_limits $ns2 1 4
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
fullmesh=2 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 4 4 4
chk_add_nr 1 1
fi
# set fullmesh flag
if reset "set fullmesh flag test" &&
continue_if mptcp_lib_kversion_ge 5.18; then
pm_nl_set_limits $ns1 4 4
pm_nl_add_endpoint $ns1 10.0.2.1 flags subflow
pm_nl_set_limits $ns2 4 4
addr_nr_ns2=1 sflags=fullmesh speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_rm_nr 0 1
fi
# set nofullmesh flag
if reset "set nofullmesh flag test" &&
continue_if mptcp_lib_kversion_ge 5.18; then
pm_nl_set_limits $ns1 4 4
pm_nl_add_endpoint $ns1 10.0.2.1 flags subflow,fullmesh
pm_nl_set_limits $ns2 4 4
fullmesh=1 sflags=nofullmesh speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_rm_nr 0 1
fi
# set backup,fullmesh flags
if reset "set backup,fullmesh flags test" &&
continue_if mptcp_lib_kversion_ge 5.18; then
pm_nl_set_limits $ns1 4 4
pm_nl_add_endpoint $ns1 10.0.2.1 flags subflow
pm_nl_set_limits $ns2 4 4
addr_nr_ns2=1 sflags=backup,fullmesh speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_prio_nr 0 1 1 0
chk_rm_nr 0 1
fi
# set nobackup,nofullmesh flags
if reset "set nobackup,nofullmesh flags test" &&
continue_if mptcp_lib_kversion_ge 5.18; then
pm_nl_set_limits $ns1 4 4
pm_nl_set_limits $ns2 4 4
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,backup,fullmesh
sflags=nobackup,nofullmesh speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
chk_prio_nr 0 1 1 0
chk_rm_nr 0 1
fi
}
fastclose_tests()
{
if reset_check_counter "fastclose test" "MPTcpExtMPFastcloseTx"; then
MPTCP_LIB_SUBTEST_FLAKY=1
test_linkfail=1024 fastclose=client \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
chk_fclose_nr 1 1
chk_rst_nr 1 1 invert
fi
if reset_check_counter "fastclose server test" "MPTcpExtMPFastcloseRx"; then
MPTCP_LIB_SUBTEST_FLAKY=1
test_linkfail=1024 fastclose=server \
run_tests $ns1 $ns2 10.0.1.1
join_rst_nr=1 \
chk_join_nr 0 0 0
chk_fclose_nr 1 1 invert
chk_rst_nr 1 1
fi
}
pedit_action_pkts()
{
tc -n $ns2 -j -s action show action pedit index 100 | \
mptcp_lib_get_info_value \"packets\" packets
}
fail_tests()
{
# single subflow
if reset_with_fail "Infinite map" 1; then
MPTCP_LIB_SUBTEST_FLAKY=1
test_linkfail=128 \
run_tests $ns1 $ns2 10.0.1.1
join_csum_ns1=+1 join_csum_ns2=+0 \
join_fail_nr=1 join_rst_nr=0 join_infi_nr=1 \
join_corrupted_pkts="$(pedit_action_pkts)" \
chk_join_nr 0 0 0
chk_fail_nr 1 -1 invert
fi
# multiple subflows
if reset_with_fail "MP_FAIL MP_RST" 2; then
MPTCP_LIB_SUBTEST_FLAKY=1
tc -n $ns2 qdisc add dev ns2eth1 root netem rate 1mbit delay 5ms
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.2.2 dev ns2eth2 flags subflow
test_linkfail=1024 \
run_tests $ns1 $ns2 10.0.1.1
join_csum_ns1=1 join_csum_ns2=0 \
join_fail_nr=1 join_rst_nr=1 join_infi_nr=0 \
join_corrupted_pkts="$(pedit_action_pkts)" \
chk_join_nr 1 1 1
fi
}
# $1: ns ; $2: addr ; $3: id
userspace_pm_add_addr()
{
local evts=$evts_ns1
local tk
[ "$1" == "$ns2" ] && evts=$evts_ns2
tk=$(mptcp_lib_evts_get_info token "$evts")
ip netns exec $1 ./pm_nl_ctl ann $2 token $tk id $3
sleep 1
}
# $1: ns ; $2: id
userspace_pm_rm_addr()
{
local evts=$evts_ns1
local tk
local cnt
[ "$1" == "$ns2" ] && evts=$evts_ns2
tk=$(mptcp_lib_evts_get_info token "$evts")
cnt=$(rm_addr_count ${1})
ip netns exec $1 ./pm_nl_ctl rem token $tk id $2
wait_rm_addr $1 "${cnt}"
}
# $1: ns ; $2: addr ; $3: id
userspace_pm_add_sf()
{
local evts=$evts_ns1
local tk da dp
[ "$1" == "$ns2" ] && evts=$evts_ns2
tk=$(mptcp_lib_evts_get_info token "$evts")
da=$(mptcp_lib_evts_get_info daddr4 "$evts")
dp=$(mptcp_lib_evts_get_info dport "$evts")
ip netns exec $1 ./pm_nl_ctl csf lip $2 lid $3 \
rip $da rport $dp token $tk
sleep 1
}
# $1: ns ; $2: addr $3: event type
userspace_pm_rm_sf()
{
local evts=$evts_ns1
local t=${3:-1}
local ip
local tk da dp sp
local cnt
[ "$1" == "$ns2" ] && evts=$evts_ns2
[ -n "$(mptcp_lib_evts_get_info "saddr4" "$evts" $t)" ] && ip=4
[ -n "$(mptcp_lib_evts_get_info "saddr6" "$evts" $t)" ] && ip=6
tk=$(mptcp_lib_evts_get_info token "$evts")
da=$(mptcp_lib_evts_get_info "daddr$ip" "$evts" $t $2)
dp=$(mptcp_lib_evts_get_info dport "$evts" $t $2)
sp=$(mptcp_lib_evts_get_info sport "$evts" $t $2)
cnt=$(rm_sf_count ${1})
ip netns exec $1 ./pm_nl_ctl dsf lip $2 lport $sp \
rip $da rport $dp token $tk
wait_rm_sf $1 "${cnt}"
}
check_output()
{
local cmd="$1"
local expected="$2"
local msg="$3"
local rc=0
mptcp_lib_check_output "${err}" "${cmd}" "${expected}" || rc=${?}
if [ ${rc} -eq 2 ]; then
fail_test "fail to check output # error ${rc}"
elif [ ${rc} -eq 0 ]; then
print_ok
elif [ ${rc} -eq 1 ]; then
fail_test "fail to check output # different output"
fi
}
# $1: ns
userspace_pm_dump()
{
local evts=$evts_ns1
local tk
[ "$1" == "$ns2" ] && evts=$evts_ns2
tk=$(mptcp_lib_evts_get_info token "$evts")
ip netns exec $1 ./pm_nl_ctl dump token $tk
}
# $1: ns ; $2: id
userspace_pm_get_addr()
{
local evts=$evts_ns1
local tk
[ "$1" == "$ns2" ] && evts=$evts_ns2
tk=$(mptcp_lib_evts_get_info token "$evts")
ip netns exec $1 ./pm_nl_ctl get $2 token $tk
}
userspace_pm_chk_dump_addr()
{
local ns="${1}"
local exp="${2}"
local check="${3}"
print_check "dump addrs ${check}"
if mptcp_lib_kallsyms_has "mptcp_userspace_pm_dump_addr$"; then
check_output "userspace_pm_dump ${ns}" "${exp}"
else
print_skip
fi
}
userspace_pm_chk_get_addr()
{
local ns="${1}"
local id="${2}"
local exp="${3}"
print_check "get id ${id} addr"
if mptcp_lib_kallsyms_has "mptcp_userspace_pm_get_addr$"; then
check_output "userspace_pm_get_addr ${ns} ${id}" "${exp}"
else
print_skip
fi
}
# $1: ns ; $2: event type ; $3: count
chk_evt_nr()
{
local ns=${1}
local evt_name="${2}"
local exp="${3}"
local evts="${evts_ns1}"
local evt="${!evt_name}"
local count
evt_name="${evt_name:16}" # without MPTCP_LIB_EVENT_
[ "${ns}" == "ns2" ] && evts="${evts_ns2}"
print_check "event ${ns} ${evt_name} (${exp})"
if [[ "${evt_name}" = "LISTENER_"* ]] &&
! mptcp_lib_kallsyms_has "mptcp_event_pm_listener$"; then
print_skip "event not supported"
return
fi
count=$(grep -cw "type:${evt}" "${evts}")
if [ "${count}" != "${exp}" ]; then
fail_test "got ${count} events, expected ${exp}"
else
print_ok
fi
}
userspace_tests()
{
# userspace pm type prevents add_addr
if reset "userspace pm type prevents add_addr" &&
continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
set_userspace_pm $ns1
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 0 2
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
chk_add_nr 0 0
fi
# userspace pm type does not echo add_addr without daemon
if reset "userspace pm no echo w/o daemon" &&
continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
set_userspace_pm $ns2
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 0 2
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
chk_add_nr 1 0
fi
# userspace pm type rejects join
if reset "userspace pm type rejects join" &&
continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
set_userspace_pm $ns1
pm_nl_set_limits $ns1 1 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 0
fi
# userspace pm type does not send join
if reset "userspace pm type does not send join" &&
continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
set_userspace_pm $ns2
pm_nl_set_limits $ns1 1 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
fi
# userspace pm type prevents mp_prio
if reset "userspace pm type prevents mp_prio" &&
continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
set_userspace_pm $ns1
pm_nl_set_limits $ns1 1 1
pm_nl_set_limits $ns2 1 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
sflags=backup speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 0
chk_prio_nr 0 0 0 0
fi
# userspace pm type prevents rm_addr
if reset "userspace pm type prevents rm_addr" &&
continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
set_userspace_pm $ns1
set_userspace_pm $ns2
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
addr_nr_ns2=-1 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
chk_rm_nr 0 0
fi
# userspace pm add & remove address
if reset_with_events "userspace pm add & remove address" &&
continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
set_userspace_pm $ns1
pm_nl_set_limits $ns2 2 2
{ speed=5 \
run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
local tests_pid=$!
wait_mpj $ns1
userspace_pm_add_addr $ns1 10.0.2.1 10
userspace_pm_add_addr $ns1 10.0.3.1 20
chk_join_nr 2 2 2
chk_add_nr 2 2
chk_mptcp_info subflows 2 subflows 2
chk_subflows_total 3 3
chk_mptcp_info add_addr_signal 2 add_addr_accepted 2
userspace_pm_chk_dump_addr "${ns1}" \
$'id 10 flags signal 10.0.2.1\nid 20 flags signal 10.0.3.1' \
"signal"
userspace_pm_chk_get_addr "${ns1}" "10" "id 10 flags signal 10.0.2.1"
userspace_pm_chk_get_addr "${ns1}" "20" "id 20 flags signal 10.0.3.1"
userspace_pm_rm_sf $ns1 "::ffff:10.0.2.1" $MPTCP_LIB_EVENT_SUB_ESTABLISHED
userspace_pm_chk_dump_addr "${ns1}" \
"id 20 flags signal 10.0.3.1" "after rm_sf 10"
userspace_pm_rm_addr $ns1 20
userspace_pm_chk_dump_addr "${ns1}" "" "after rm_addr 20"
chk_rm_nr 1 1 invert
chk_mptcp_info subflows 0 subflows 0
chk_subflows_total 1 1
kill_events_pids
mptcp_lib_kill_wait $tests_pid
fi
# userspace pm create destroy subflow
if reset_with_events "userspace pm create destroy subflow" &&
continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
set_userspace_pm $ns2
pm_nl_set_limits $ns1 0 1
{ speed=5 \
run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
local tests_pid=$!
wait_mpj $ns2
userspace_pm_add_sf $ns2 10.0.3.2 20
chk_join_nr 1 1 1
chk_mptcp_info subflows 1 subflows 1
chk_subflows_total 2 2
userspace_pm_chk_dump_addr "${ns2}" \
"id 20 flags subflow 10.0.3.2" \
"subflow"
userspace_pm_chk_get_addr "${ns2}" "20" "id 20 flags subflow 10.0.3.2"
userspace_pm_rm_sf $ns2 10.0.3.2 $MPTCP_LIB_EVENT_SUB_ESTABLISHED
userspace_pm_chk_dump_addr "${ns2}" \
"" \
"after rm_sf 20"
chk_rm_nr 0 1
chk_mptcp_info subflows 0 subflows 0
chk_subflows_total 1 1
kill_events_pids
mptcp_lib_kill_wait $tests_pid
fi
# userspace pm create id 0 subflow
if reset_with_events "userspace pm create id 0 subflow" &&
continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
set_userspace_pm $ns2
pm_nl_set_limits $ns1 0 1
{ speed=5 \
run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
local tests_pid=$!
wait_mpj $ns2
chk_mptcp_info subflows 0 subflows 0
chk_subflows_total 1 1
userspace_pm_add_sf $ns2 10.0.3.2 0
userspace_pm_chk_dump_addr "${ns2}" \
"id 0 flags subflow 10.0.3.2" "id 0 subflow"
chk_join_nr 1 1 1
chk_mptcp_info subflows 1 subflows 1
chk_subflows_total 2 2
kill_events_pids
mptcp_lib_kill_wait $tests_pid
fi
# userspace pm remove initial subflow
if reset_with_events "userspace pm remove initial subflow" &&
continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
set_userspace_pm $ns2
pm_nl_set_limits $ns1 0 1
{ speed=5 \
run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
local tests_pid=$!
wait_mpj $ns2
userspace_pm_add_sf $ns2 10.0.3.2 20
chk_join_nr 1 1 1
chk_mptcp_info subflows 1 subflows 1
chk_subflows_total 2 2
userspace_pm_rm_sf $ns2 10.0.1.2
# we don't look at the counter linked to the RM_ADDR but
# to the one linked to the subflows that have been removed
chk_rm_nr 0 1
chk_rst_nr 0 0 invert
chk_mptcp_info subflows 1 subflows 1
chk_subflows_total 1 1
kill_events_pids
mptcp_lib_kill_wait $tests_pid
fi
# userspace pm send RM_ADDR for ID 0
if reset_with_events "userspace pm send RM_ADDR for ID 0" &&
continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
set_userspace_pm $ns1
pm_nl_set_limits $ns2 1 1
{ speed=5 \
run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
local tests_pid=$!
wait_mpj $ns1
userspace_pm_add_addr $ns1 10.0.2.1 10
chk_join_nr 1 1 1
chk_add_nr 1 1
chk_mptcp_info subflows 1 subflows 1
chk_subflows_total 2 2
chk_mptcp_info add_addr_signal 1 add_addr_accepted 1
userspace_pm_rm_addr $ns1 0
# we don't look at the counter linked to the subflows that
# have been removed but to the one linked to the RM_ADDR
chk_rm_nr 1 0 invert
chk_rst_nr 0 0 invert
chk_mptcp_info subflows 1 subflows 1
chk_subflows_total 1 1
kill_events_pids
mptcp_lib_kill_wait $tests_pid
fi
}
endpoint_tests()
{
# subflow_rebuild_header is needed to support the implicit flag
# userspace pm type prevents add_addr
if reset "implicit EP" &&
mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
pm_nl_set_limits $ns1 2 2
pm_nl_set_limits $ns2 2 2
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
{ speed=slow \
run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
local tests_pid=$!
wait_mpj $ns1
pm_nl_check_endpoint "creation" \
$ns2 10.0.2.2 id 1 flags implicit
chk_mptcp_info subflows 1 subflows 1
chk_mptcp_info add_addr_signal 1 add_addr_accepted 1
pm_nl_add_endpoint $ns2 10.0.2.2 id 33 2>/dev/null
pm_nl_check_endpoint "ID change is prevented" \
$ns2 10.0.2.2 id 1 flags implicit
pm_nl_add_endpoint $ns2 10.0.2.2 flags signal
pm_nl_check_endpoint "modif is allowed" \
$ns2 10.0.2.2 id 1 flags signal
mptcp_lib_kill_wait $tests_pid
fi
if reset_with_tcp_filter "delete and re-add" ns2 10.0.3.2 REJECT OUTPUT &&
mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
start_events
pm_nl_set_limits $ns1 0 3
pm_nl_set_limits $ns2 0 3
pm_nl_add_endpoint $ns2 10.0.1.2 id 1 dev ns2eth1 flags subflow
pm_nl_add_endpoint $ns2 10.0.2.2 id 2 dev ns2eth2 flags subflow
{ test_linkfail=4 speed=5 \
run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
local tests_pid=$!
wait_mpj $ns2
pm_nl_check_endpoint "creation" \
$ns2 10.0.2.2 id 2 flags subflow dev ns2eth2
chk_subflow_nr "before delete id 2" 2
chk_mptcp_info subflows 1 subflows 1
pm_nl_del_endpoint $ns2 2 10.0.2.2
sleep 0.5
chk_subflow_nr "after delete id 2" 1
chk_mptcp_info subflows 0 subflows 0
pm_nl_add_endpoint $ns2 10.0.2.2 id 2 dev ns2eth2 flags subflow
wait_mpj $ns2
chk_subflow_nr "after re-add id 2" 2
chk_mptcp_info subflows 1 subflows 1
pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
wait_attempt_fail $ns2
chk_subflow_nr "after new reject" 2
chk_mptcp_info subflows 1 subflows 1
ip netns exec "${ns2}" ${iptables} -D OUTPUT -s "10.0.3.2" -p tcp -j REJECT
pm_nl_del_endpoint $ns2 3 10.0.3.2
pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
wait_mpj $ns2
chk_subflow_nr "after no reject" 3
chk_mptcp_info subflows 2 subflows 2
local i
for i in $(seq 3); do
pm_nl_del_endpoint $ns2 1 10.0.1.2
sleep 0.5
chk_subflow_nr "after delete id 0 ($i)" 2
chk_mptcp_info subflows 2 subflows 2 # only decr for additional sf
pm_nl_add_endpoint $ns2 10.0.1.2 id 1 dev ns2eth1 flags subflow
wait_mpj $ns2
chk_subflow_nr "after re-add id 0 ($i)" 3
chk_mptcp_info subflows 3 subflows 3
done
mptcp_lib_kill_wait $tests_pid
kill_events_pids
chk_evt_nr ns1 MPTCP_LIB_EVENT_LISTENER_CREATED 1
chk_evt_nr ns1 MPTCP_LIB_EVENT_CREATED 1
chk_evt_nr ns1 MPTCP_LIB_EVENT_ESTABLISHED 1
chk_evt_nr ns1 MPTCP_LIB_EVENT_ANNOUNCED 0
chk_evt_nr ns1 MPTCP_LIB_EVENT_REMOVED 4
chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_ESTABLISHED 6
chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_CLOSED 4
chk_evt_nr ns2 MPTCP_LIB_EVENT_CREATED 1
chk_evt_nr ns2 MPTCP_LIB_EVENT_ESTABLISHED 1
chk_evt_nr ns2 MPTCP_LIB_EVENT_ANNOUNCED 0
chk_evt_nr ns2 MPTCP_LIB_EVENT_REMOVED 0
chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 6
chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_CLOSED 5 # one has been closed before estab
join_syn_tx=7 \
chk_join_nr 6 6 6
chk_rm_nr 4 4
fi
# remove and re-add
if reset_with_events "delete re-add signal" &&
mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
pm_nl_set_limits $ns1 0 3
pm_nl_set_limits $ns2 3 3
pm_nl_add_endpoint $ns1 10.0.2.1 id 1 flags signal
# broadcast IP: no packet for this address will be received on ns1
pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal
pm_nl_add_endpoint $ns1 10.0.1.1 id 42 flags signal
{ test_linkfail=4 speed=5 \
run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
local tests_pid=$!
wait_mpj $ns2
pm_nl_check_endpoint "creation" \
$ns1 10.0.2.1 id 1 flags signal
chk_subflow_nr "before delete" 2
chk_mptcp_info subflows 1 subflows 1
pm_nl_del_endpoint $ns1 1 10.0.2.1
pm_nl_del_endpoint $ns1 2 224.0.0.1
sleep 0.5
chk_subflow_nr "after delete" 1
chk_mptcp_info subflows 0 subflows 0
pm_nl_add_endpoint $ns1 10.0.2.1 id 1 flags signal
pm_nl_add_endpoint $ns1 10.0.3.1 id 2 flags signal
wait_mpj $ns2
chk_subflow_nr "after re-add" 3
chk_mptcp_info subflows 2 subflows 2
pm_nl_del_endpoint $ns1 42 10.0.1.1
sleep 0.5
chk_subflow_nr "after delete ID 0" 2
chk_mptcp_info subflows 2 subflows 2
pm_nl_add_endpoint $ns1 10.0.1.1 id 99 flags signal
wait_mpj $ns2
chk_subflow_nr "after re-add ID 0" 3
chk_mptcp_info subflows 3 subflows 3
pm_nl_del_endpoint $ns1 99 10.0.1.1
sleep 0.5
chk_subflow_nr "after re-delete ID 0" 2
chk_mptcp_info subflows 2 subflows 2
pm_nl_add_endpoint $ns1 10.0.1.1 id 88 flags signal
wait_mpj $ns2
chk_subflow_nr "after re-re-add ID 0" 3
chk_mptcp_info subflows 3 subflows 3
mptcp_lib_kill_wait $tests_pid
kill_events_pids
chk_evt_nr ns1 MPTCP_LIB_EVENT_LISTENER_CREATED 1
chk_evt_nr ns1 MPTCP_LIB_EVENT_CREATED 1
chk_evt_nr ns1 MPTCP_LIB_EVENT_ESTABLISHED 1
chk_evt_nr ns1 MPTCP_LIB_EVENT_ANNOUNCED 0
chk_evt_nr ns1 MPTCP_LIB_EVENT_REMOVED 0
chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_ESTABLISHED 5
chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_CLOSED 3
chk_evt_nr ns2 MPTCP_LIB_EVENT_CREATED 1
chk_evt_nr ns2 MPTCP_LIB_EVENT_ESTABLISHED 1
chk_evt_nr ns2 MPTCP_LIB_EVENT_ANNOUNCED 6
chk_evt_nr ns2 MPTCP_LIB_EVENT_REMOVED 4
chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 5
chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_CLOSED 3
join_connect_err=1 \
chk_join_nr 5 5 5
chk_add_nr 6 6
chk_rm_nr 4 3 invert
fi
# flush and re-add
if reset_with_tcp_filter "flush re-add" ns2 10.0.3.2 REJECT OUTPUT &&
mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 1 2
# broadcast IP: no packet for this address will be received on ns1
pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal
pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
{ test_linkfail=4 speed=20 \
run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
local tests_pid=$!
wait_attempt_fail $ns2
chk_subflow_nr "before flush" 1
chk_mptcp_info subflows 0 subflows 0
pm_nl_flush_endpoint $ns2
pm_nl_flush_endpoint $ns1
wait_rm_addr $ns2 0
ip netns exec "${ns2}" ${iptables} -D OUTPUT -s "10.0.3.2" -p tcp -j REJECT
pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
wait_mpj $ns2
pm_nl_add_endpoint $ns1 10.0.3.1 id 2 flags signal
wait_mpj $ns2
mptcp_lib_kill_wait $tests_pid
join_syn_tx=3 join_connect_err=1 \
chk_join_nr 2 2 2
chk_add_nr 2 2
chk_rm_nr 1 0 invert
fi
}
# [$1: error message]
usage()
{
if [ -n "${1}" ]; then
echo "${1}"
ret=${KSFT_FAIL}
fi
echo "mptcp_join usage:"
local key
for key in "${!all_tests[@]}"; do
echo " -${key} ${all_tests[${key}]}"
done
echo " -c capture pcap files"
echo " -C enable data checksum"
echo " -i use ip mptcp"
echo " -h help"
echo "[test ids|names]"
exit ${ret}
}
# Use a "simple" array to force an specific order we cannot have with an associative one
all_tests_sorted=(
f@subflows_tests
e@subflows_error_tests
s@signal_address_tests
l@link_failure_tests
t@add_addr_timeout_tests
r@remove_tests
a@add_tests
6@ipv6_tests
4@v4mapped_tests
M@mixed_tests
b@backup_tests
p@add_addr_ports_tests
k@syncookies_tests
S@checksum_tests
d@deny_join_id0_tests
m@fullmesh_tests
z@fastclose_tests
F@fail_tests
u@userspace_tests
I@endpoint_tests
)
all_tests_args=""
all_tests_names=()
for subtests in "${all_tests_sorted[@]}"; do
key="${subtests%@*}"
value="${subtests#*@}"
all_tests_args+="${key}"
all_tests_names+=("${value}")
all_tests[${key}]="${value}"
done
tests=()
while getopts "${all_tests_args}cCih" opt; do
case $opt in
["${all_tests_args}"])
tests+=("${all_tests[${opt}]}")
;;
c)
capture=true
;;
C)
checksum=true
;;
i)
mptcp_lib_set_ip_mptcp
;;
h)
usage
;;
*)
usage "Unknown option: -${opt}"
;;
esac
done
shift $((OPTIND - 1))
for arg in "${@}"; do
if [[ "${arg}" =~ ^[0-9]+$ ]]; then
only_tests_ids+=("${arg}")
else
only_tests_names+=("${arg}")
fi
done
if [ ${#tests[@]} -eq 0 ]; then
tests=("${all_tests_names[@]}")
fi
mptcp_lib_subtests_last_ts_reset
for subtests in "${tests[@]}"; do
"${subtests}"
done
append_prev_results
if [ ${ret} -ne 0 ]; then
echo
echo "${#failed_tests[@]} failure(s) has(ve) been detected:"
for i in $(get_failed_tests_ids); do
echo -e "\t- ${i}: ${failed_tests[${i}]}"
done
echo
fi
mptcp_lib_result_print_all_tap
exit $ret
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