| Current File : //proc/self/root/usr/src/linux-headers-6.8.0-60/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh |
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
. "$(dirname "${0}")/mptcp_lib.sh"
ret=0
sin=""
sout=""
cin=""
cout=""
ksft_skip=4
timeout_poll=30
timeout_test=$((timeout_poll * 2 + 1))
iptables="iptables"
ip6tables="ip6tables"
sec=$(date +%s)
rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
ns1="ns1-$rndh"
ns2="ns2-$rndh"
ns_sbox="ns_sbox-$rndh"
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 $t -A OUTPUT -p tcp -m mark --mark 0 -j DROP
done
}
init()
{
local netns
for netns in "$ns1" "$ns2" "$ns_sbox";do
ip netns add $netns || exit $ksft_skip
ip -net $netns link set lo up
ip netns exec $netns sysctl -q net.mptcp.enabled=1
ip netns exec $netns sysctl -q net.ipv4.conf.all.rp_filter=0
ip netns exec $netns sysctl -q net.ipv4.conf.default.rp_filter=0
done
local i
for i in `seq 1 4`; do
ip link add ns1eth$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 netns exec $ns1 ./pm_nl_ctl add 10.0.$i.1 flags signal
ip netns exec $ns1 ./pm_nl_ctl add dead:beef:$i::1 flags signal
ip netns exec $ns2 ./pm_nl_ctl add 10.0.$i.2 flags signal
ip netns exec $ns2 ./pm_nl_ctl add dead:beef:$i::2 flags signal
done
ip netns exec $ns1 ./pm_nl_ctl limits 8 8
ip netns exec $ns2 ./pm_nl_ctl limits 8 8
add_mark_rules $ns1 1
add_mark_rules $ns2 2
}
cleanup()
{
local netns
for netns in "$ns1" "$ns2" "$ns_sbox"; do
ip netns del $netns
done
rm -f "$cin" "$cout"
rm -f "$sin" "$sout"
}
mptcp_lib_check_mptcp
mptcp_lib_check_kallsyms
ip -Version > /dev/null 2>&1
if [ $? -ne 0 ];then
echo "SKIP: Could not run test without ip tool"
exit $ksft_skip
fi
# Use the legacy version if available to support old kernel versions
if iptables-legacy -V &> /dev/null; then
iptables="iptables-legacy"
ip6tables="ip6tables-legacy"
elif ! iptables -V &> /dev/null; then
echo "SKIP: Could not run all tests without iptables tool"
exit $ksft_skip
elif ! ip6tables -V &> /dev/null; then
echo "SKIP: Could not run all tests without ip6tables tool"
exit $ksft_skip
fi
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
echo "FAIL: got $tables $values in ns $ns , not 0 - not all expected packets marked" 1>&2
ret=1
return 1
fi
done
return 0
}
do_transfer()
{
local listener_ns="$1"
local connector_ns="$2"
local cl_proto="$3"
local srv_proto="$4"
local connect_addr="$5"
local port=12001
:> "$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 $spid
local rets=$?
if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
echo " client exit code $retc, server $rets" 1>&2
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=1
return 1
fi
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_check_transfer $cin $sout "file received by server"
rets=$?
mptcp_lib_result_code "${retc}" "mark ${ip}"
mptcp_lib_result_code "${rets}" "transfer ${ip}"
if [ $retc -eq 0 ] && [ $rets -eq 0 ];then
return 0
fi
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
echo "INFO: MPTCP sockopt not supported: SKIP"
mptcp_lib_result_skip "sockopt"
return
fi
ip netns exec "$ns_sbox" ./mptcp_sockopt
lret=$?
if [ $lret -ne 0 ]; then
echo "FAIL: SOL_MPTCP getsockopt" 1>&2
mptcp_lib_result_fail "sockopt v4"
ret=$lret
return
fi
mptcp_lib_result_pass "sockopt v4"
ip netns exec "$ns_sbox" ./mptcp_sockopt -6
lret=$?
if [ $lret -ne 0 ]; then
echo "FAIL: SOL_MPTCP getsockopt (ipv6)" 1>&2
mptcp_lib_result_fail "sockopt v6"
ret=$lret
return
fi
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()
{
ip netns exec "$ns_sbox" ./mptcp_inq "$@"
local lret=$?
if [ $lret -ne 0 ];then
ret=$lret
echo "FAIL: mptcp_inq $@" 1>&2
mptcp_lib_result_fail "TCP_INQ: $*"
return $lret
fi
echo "PASS: TCP_INQ cmsg/ioctl $@"
mptcp_lib_result_pass "TCP_INQ: $*"
return $lret
}
do_tcpinq_tests()
{
local lret=0
if ! mptcp_lib_kallsyms_has "mptcp_ioctl$"; then
echo "INFO: TCP_INQ not supported: SKIP"
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
run_tests $ns1 $ns2 10.0.1.1
run_tests $ns1 $ns2 dead:beef:1::1
if [ $ret -eq 0 ];then
echo "PASS: all packets had packet mark set"
fi
do_mptcp_sockopt_tests
if [ $ret -eq 0 ];then
echo "PASS: SOL_MPTCP getsockopt has expected information"
fi
do_tcpinq_tests
mptcp_lib_result_print_all_tap
exit $ret