#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Double quotes to prevent globbing and word splitting is recommended in new
# code but we accept it, especially because there were too many before having
# address all other issues detected by shellcheck.
#shellcheck disable=SC2086
. "$(dirname "${0}")/mptcp_lib.sh"
ret=0
sin=""
sout=""
cin=""
cout=""
timeout_poll=30
timeout_test=$((timeout_poll * 2 + 1))
iptables="iptables"
ip6tables="ip6tables"
ns1=""
ns2=""
ns_sbox=""
usage() {
echo "Usage: $0 [ -i ] [ -h ]"
echo -e "\t-i: use 'ip mptcp' instead of 'pm_nl_ctl'"
echo -e "\t-h: help"
}
while getopts "hi" option;do
case "$option" in
"h")
usage "$0"
exit ${KSFT_PASS}
;;
"i")
mptcp_lib_set_ip_mptcp
;;
"?")
usage "$0"
exit ${KSFT_FAIL}
;;
esac
done
add_mark_rules()
{
local ns=$1
local m=$2
local t
for t in ${iptables} ${ip6tables}; do
# just to debug: check we have multiple subflows connection requests
ip netns exec $ns $t -A OUTPUT -p tcp --syn -m mark --mark $m -j ACCEPT
# RST packets might be handled by a internal dummy socket
ip netns exec $ns $t -A OUTPUT -p tcp --tcp-flags RST RST -m mark --mark 0 -j ACCEPT
ip netns exec $ns $t -A OUTPUT -p tcp -m mark --mark $m -j ACCEPT
ip netns exec $ns $t -A OUTPUT -p tcp -m mark --mark 0 -j DROP
done
}
init()
{
mptcp_lib_ns_init ns1 ns2 ns_sbox
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$i
mptcp_lib_pm_nl_add_endpoint "${ns1}" "10.0.${i}.1" flags signal
mptcp_lib_pm_nl_add_endpoint "${ns1}" "dead:beef:${i}::1" flags signal
mptcp_lib_pm_nl_add_endpoint "${ns2}" "10.0.${i}.2" flags signal
mptcp_lib_pm_nl_add_endpoint "${ns2}" "dead:beef:${i}::2" flags signal
done
mptcp_lib_pm_nl_set_limits "${ns1}" 8 8
mptcp_lib_pm_nl_set_limits "${ns2}" 8 8
add_mark_rules $ns1 1
add_mark_rules $ns2 2
}
# This function is used in the cleanup trap
#shellcheck disable=SC2317
cleanup()
{
mptcp_lib_ns_exit "${ns1}" "${ns2}" "${ns_sbox}"
rm -f "$cin" "$cout"
rm -f "$sin" "$sout"
}
mptcp_lib_check_mptcp
mptcp_lib_check_kallsyms
mptcp_lib_check_tools ip "${iptables}" "${ip6tables}"
check_mark()
{
local ns=$1
local af=$2
local tables=${iptables}
if [ $af -eq 6 ];then
tables=${ip6tables}
fi
local counters values
counters=$(ip netns exec $ns $tables -v -L OUTPUT | grep DROP)
values=${counters%DROP*}
local v
for v in $values; do
if [ $v -ne 0 ]; then
mptcp_lib_pr_fail "got $tables $values in ns $ns," \
"not 0 - not all expected packets marked"
ret=${KSFT_FAIL}
return 1
fi
done
return 0
}
print_title()
{
mptcp_lib_print_title "${@}"
}
do_transfer()
{
local listener_ns="$1"
local connector_ns="$2"
local cl_proto="$3"
local srv_proto="$4"
local connect_addr="$5"
local port=12001
:> "$cout"
:> "$sout"
local mptcp_connect="./mptcp_connect -r 20"
local local_addr ip
if mptcp_lib_is_v6 "${connect_addr}"; then
local_addr="::"
ip=ipv6
else
local_addr="0.0.0.0"
ip=ipv4
fi
cmsg="TIMESTAMPNS"
if mptcp_lib_kallsyms_has "mptcp_ioctl$"; then
cmsg+=",TCPINQ"
fi
timeout ${timeout_test} \
ip netns exec ${listener_ns} \
$mptcp_connect -t ${timeout_poll} -l -M 1 -p $port -s ${srv_proto} -c "${cmsg}" \
${local_addr} < "$sin" > "$sout" &
local spid=$!
sleep 1
timeout ${timeout_test} \
ip netns exec ${connector_ns} \
$mptcp_connect -t ${timeout_poll} -M 2 -p $port -s ${cl_proto} -c "${cmsg}" \
$connect_addr < "$cin" > "$cout" &
local cpid=$!
wait $cpid
local retc=$?
wait $spid
local rets=$?
print_title "Transfer ${ip:2}"
if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
mptcp_lib_pr_fail "client exit code $retc, server $rets"
echo -e "\nnetns ${listener_ns} socket stat for ${port}:" 1>&2
ip netns exec ${listener_ns} ss -Menita 1>&2 -o "sport = :$port"
echo -e "\nnetns ${connector_ns} socket stat for ${port}:" 1>&2
ip netns exec ${connector_ns} ss -Menita 1>&2 -o "dport = :$port"
mptcp_lib_result_fail "transfer ${ip}"
ret=${KSFT_FAIL}
return 1
fi
if ! mptcp_lib_check_transfer $cin $sout "file received by server"; then
rets=1
else
mptcp_lib_pr_ok
fi
mptcp_lib_result_code "${rets}" "transfer ${ip}"
print_title "Mark ${ip:2}"
if [ $local_addr = "::" ];then
check_mark $listener_ns 6 || retc=1
check_mark $connector_ns 6 || retc=1
else
check_mark $listener_ns 4 || retc=1
check_mark $connector_ns 4 || retc=1
fi
mptcp_lib_result_code "${retc}" "mark ${ip}"
if [ $retc -eq 0 ] && [ $rets -eq 0 ];then
mptcp_lib_pr_ok
return 0
fi
mptcp_lib_pr_fail
return 1
}
make_file()
{
local name=$1
local who=$2
local size=$3
mptcp_lib_make_file $name 1024 $size
echo "Created $name (size $size KB) containing data sent by $who"
}
do_mptcp_sockopt_tests()
{
local lret=0
if ! mptcp_lib_kallsyms_has "mptcp_diag_fill_info$"; then
mptcp_lib_pr_skip "MPTCP sockopt not supported"
mptcp_lib_result_skip "sockopt"
return
fi
ip netns exec "$ns_sbox" ./mptcp_sockopt
lret=$?
print_title "SOL_MPTCP sockopt v4"
if [ $lret -ne 0 ]; then
mptcp_lib_pr_fail
mptcp_lib_result_fail "sockopt v4"
ret=$lret
return
fi
mptcp_lib_pr_ok
mptcp_lib_result_pass "sockopt v4"
ip netns exec "$ns_sbox" ./mptcp_sockopt -6
lret=$?
print_title "SOL_MPTCP sockopt v6"
if [ $lret -ne 0 ]; then
mptcp_lib_pr_fail
mptcp_lib_result_fail "sockopt v6"
ret=$lret
return
fi
mptcp_lib_pr_ok
mptcp_lib_result_pass "sockopt v6"
}
run_tests()
{
local listener_ns="$1"
local connector_ns="$2"
local connect_addr="$3"
local lret=0
do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP ${connect_addr}
lret=$?
if [ $lret -ne 0 ]; then
ret=$lret
return
fi
}
do_tcpinq_test()
{
print_title "TCP_INQ cmsg/ioctl $*"
ip netns exec "$ns_sbox" ./mptcp_inq "$@"
local lret=$?
if [ $lret -ne 0 ];then
ret=$lret
mptcp_lib_pr_fail
mptcp_lib_result_fail "TCP_INQ: $*"
return $lret
fi
mptcp_lib_pr_ok
mptcp_lib_result_pass "TCP_INQ: $*"
return $lret
}
do_tcpinq_tests()
{
local lret=0
if ! mptcp_lib_kallsyms_has "mptcp_ioctl$"; then
mptcp_lib_pr_skip "TCP_INQ not supported"
mptcp_lib_result_skip "TCP_INQ"
return
fi
local args
for args in "-t tcp" "-r tcp"; do
do_tcpinq_test $args
lret=$?
if [ $lret -ne 0 ] ; then
return $lret
fi
do_tcpinq_test -6 $args
lret=$?
if [ $lret -ne 0 ] ; then
return $lret
fi
done
do_tcpinq_test -r tcp -t tcp
return $?
}
sin=$(mktemp)
sout=$(mktemp)
cin=$(mktemp)
cout=$(mktemp)
init
make_file "$cin" "client" 1
make_file "$sin" "server" 1
trap cleanup EXIT
mptcp_lib_subtests_last_ts_reset
run_tests $ns1 $ns2 10.0.1.1
run_tests $ns1 $ns2 dead:beef:1::1
do_mptcp_sockopt_tests
do_tcpinq_tests
mptcp_lib_result_print_all_tap
exit $ret
Codebase Browser
linux