#!/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.
#shellcheck disable=SC2086
# Some variables are used below but indirectly, see verify_*_event()
#shellcheck disable=SC2034
. "$(dirname "${0}")/mptcp_lib.sh"
mptcp_lib_check_mptcp
mptcp_lib_check_kallsyms
if ! mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
echo "userspace pm tests are not supported by the kernel: SKIP"
exit ${KSFT_SKIP}
fi
mptcp_lib_check_tools ip
ANNOUNCED=${MPTCP_LIB_EVENT_ANNOUNCED}
REMOVED=${MPTCP_LIB_EVENT_REMOVED}
SUB_ESTABLISHED=${MPTCP_LIB_EVENT_SUB_ESTABLISHED}
SUB_CLOSED=${MPTCP_LIB_EVENT_SUB_CLOSED}
LISTENER_CREATED=${MPTCP_LIB_EVENT_LISTENER_CREATED}
LISTENER_CLOSED=${MPTCP_LIB_EVENT_LISTENER_CLOSED}
AF_INET=${MPTCP_LIB_AF_INET}
AF_INET6=${MPTCP_LIB_AF_INET6}
file=""
server_evts=""
client_evts=""
server_evts_pid=0
client_evts_pid=0
client4_pid=0
server4_pid=0
client6_pid=0
server6_pid=0
client4_token=""
server4_token=""
client6_token=""
server6_token=""
client4_port=0;
client6_port=0;
app4_port=50002
new4_port=50003
app6_port=50004
client_addr_id=${RANDOM:0:2}
server_addr_id=${RANDOM:0:2}
ns1=""
ns2=""
ret=0
test_name=""
# a bit more space: because we have more to display
MPTCP_LIB_TEST_FORMAT="%02u %-68s"
print_title()
{
mptcp_lib_pr_info "${1}"
}
# $1: test name
print_test()
{
test_name="${1}"
mptcp_lib_print_title "${test_name}"
}
test_pass()
{
mptcp_lib_pr_ok
mptcp_lib_result_pass "${test_name}"
}
test_skip()
{
mptcp_lib_pr_skip
mptcp_lib_result_skip "${test_name}"
}
# $1: msg
test_fail()
{
if [ ${#} -gt 0 ]
then
mptcp_lib_pr_fail "${@}"
fi
ret=${KSFT_FAIL}
mptcp_lib_result_fail "${test_name}"
}
# This function is used in the cleanup trap
#shellcheck disable=SC2317
cleanup()
{
print_title "Cleanup"
# Terminate the MPTCP connection and related processes
local pid
for pid in $client4_pid $server4_pid $client6_pid $server6_pid\
$server_evts_pid $client_evts_pid
do
mptcp_lib_kill_wait $pid
done
mptcp_lib_ns_exit "${ns1}" "${ns2}"
rm -rf $file $client_evts $server_evts
mptcp_lib_pr_info "Done"
}
trap cleanup EXIT
# Create and configure network namespaces for testing
mptcp_lib_ns_init ns1 ns2
for i in "$ns1" "$ns2" ;do
ip netns exec "$i" sysctl -q net.mptcp.pm_type=1
done
# "$ns1" ns2
# ns1eth2 ns2eth1
ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
# Add IPv4/v6 addresses to the namespaces
ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2
ip -net "$ns1" addr add 10.0.2.1/24 dev ns1eth2
ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad
ip -net "$ns1" addr add dead:beef:2::1/64 dev ns1eth2 nodad
ip -net "$ns1" link set ns1eth2 up
ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
ip -net "$ns2" addr add 10.0.2.2/24 dev ns2eth1
ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
ip -net "$ns2" addr add dead:beef:2::2/64 dev ns2eth1 nodad
ip -net "$ns2" link set ns2eth1 up
file=$(mktemp)
mptcp_lib_make_file "$file" 2 1
# Capture netlink events over the two network namespaces running
# the MPTCP client and server
client_evts=$(mktemp)
mptcp_lib_events "${ns2}" "${client_evts}" client_evts_pid
server_evts=$(mktemp)
mptcp_lib_events "${ns1}" "${server_evts}" server_evts_pid
sleep 0.5
mptcp_lib_subtests_last_ts_reset
print_title "Init"
print_test "Created network namespaces ns1, ns2"
test_pass
make_connection()
{
local is_v6=$1
local app_port=$app4_port
local connect_addr="10.0.1.1"
local client_addr="10.0.1.2"
local listen_addr="0.0.0.0"
if [ "$is_v6" = "v6" ]
then
connect_addr="dead:beef:1::1"
client_addr="dead:beef:1::2"
listen_addr="::"
app_port=$app6_port
else
is_v6="v4"
fi
:>"$client_evts"
:>"$server_evts"
# Run the server
ip netns exec "$ns1" \
./mptcp_connect -s MPTCP -w 300 -p $app_port -l $listen_addr > /dev/null 2>&1 &
local server_pid=$!
sleep 0.5
# Run the client, transfer $file and stay connected to the server
# to conduct tests
ip netns exec "$ns2" \
./mptcp_connect -s MPTCP -w 300 -m sendfile -p $app_port $connect_addr\
2>&1 > /dev/null < "$file" &
local client_pid=$!
sleep 1
# Capture client/server attributes from MPTCP connection netlink events
local client_token
local client_port
local client_serverside
local server_token
local server_serverside
client_token=$(mptcp_lib_evts_get_info token "$client_evts")
client_port=$(mptcp_lib_evts_get_info sport "$client_evts")
client_serverside=$(mptcp_lib_evts_get_info server_side "$client_evts")
server_token=$(mptcp_lib_evts_get_info token "$server_evts")
server_serverside=$(mptcp_lib_evts_get_info server_side "$server_evts")
print_test "Established IP${is_v6} MPTCP Connection ns2 => ns1"
if [ "$client_token" != "" ] && [ "$server_token" != "" ] && [ "$client_serverside" = 0 ] &&
[ "$server_serverside" = 1 ]
then
test_pass
print_title "Connection info: ${client_addr}:${client_port} -> ${connect_addr}:${app_port}"
else
test_fail "Expected tokens (c:${client_token} - s:${server_token}) and server (c:${client_serverside} - s:${server_serverside})"
mptcp_lib_result_print_all_tap
exit ${KSFT_FAIL}
fi
if [ "$is_v6" = "v6" ]
then
client6_token=$client_token
server6_token=$server_token
client6_port=$client_port
client6_pid=$client_pid
server6_pid=$server_pid
else
client4_token=$client_token
server4_token=$server_token
client4_port=$client_port
client4_pid=$client_pid
server4_pid=$server_pid
fi
}
# $@: all var names to check
check_expected()
{
if mptcp_lib_check_expected "${@}"
then
test_pass
return 0
fi
test_fail
return 1
}
verify_announce_event()
{
local evt=$1
local e_type=$2
local e_token=$3
local e_addr=$4
local e_id=$5
local e_dport=$6
local e_af=$7
local type
local token
local addr
local dport
local id
type=$(mptcp_lib_evts_get_info type "$evt" $e_type)
token=$(mptcp_lib_evts_get_info token "$evt" $e_type)
if [ "$e_af" = "v6" ]
then
addr=$(mptcp_lib_evts_get_info daddr6 "$evt" $e_type)
else
addr=$(mptcp_lib_evts_get_info daddr4 "$evt" $e_type)
fi
dport=$(mptcp_lib_evts_get_info dport "$evt" $e_type)
id=$(mptcp_lib_evts_get_info rem_id "$evt" $e_type)
check_expected "type" "token" "addr" "dport" "id"
}
test_announce()
{
print_title "Announce tests"
# Capture events on the network namespace running the server
:>"$server_evts"
# ADD_ADDR using an invalid token should result in no action
local invalid_token=$(( client4_token - 1))
ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token $invalid_token id\
$client_addr_id dev ns2eth1 > /dev/null 2>&1
local type
type=$(mptcp_lib_evts_get_info type "$server_evts")
print_test "ADD_ADDR 10.0.2.2 (ns2) => ns1, invalid token"
if [ "$type" = "" ]
then
test_pass
else
test_fail "type defined: ${type}"
fi
# ADD_ADDR from the client to server machine reusing the subflow port
:>"$server_evts"
ip netns exec "$ns2"\
./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id $client_addr_id dev\
ns2eth1
print_test "ADD_ADDR id:client 10.0.2.2 (ns2) => ns1, reuse port"
sleep 0.5
verify_announce_event $server_evts $ANNOUNCED $server4_token "10.0.2.2" $client_addr_id \
"$client4_port"
# ADD_ADDR6 from the client to server machine reusing the subflow port
:>"$server_evts"
ip netns exec "$ns2" ./pm_nl_ctl ann\
dead:beef:2::2 token "$client6_token" id $client_addr_id dev ns2eth1
print_test "ADD_ADDR6 id:client dead:beef:2::2 (ns2) => ns1, reuse port"
sleep 0.5
verify_announce_event "$server_evts" "$ANNOUNCED" "$server6_token" "dead:beef:2::2"\
"$client_addr_id" "$client6_port" "v6"
# ADD_ADDR from the client to server machine using a new port
:>"$server_evts"
client_addr_id=$((client_addr_id+1))
ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
$client_addr_id dev ns2eth1 port $new4_port
print_test "ADD_ADDR id:client+1 10.0.2.2 (ns2) => ns1, new port"
sleep 0.5
verify_announce_event "$server_evts" "$ANNOUNCED" "$server4_token" "10.0.2.2"\
"$client_addr_id" "$new4_port"
# Capture events on the network namespace running the client
:>"$client_evts"
# ADD_ADDR from the server to client machine reusing the subflow port
ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
$server_addr_id dev ns1eth2
print_test "ADD_ADDR id:server 10.0.2.1 (ns1) => ns2, reuse port"
sleep 0.5
verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
"$server_addr_id" "$app4_port"
# ADD_ADDR6 from the server to client machine reusing the subflow port
:>"$client_evts"
ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\
$server_addr_id dev ns1eth2
print_test "ADD_ADDR6 id:server dead:beef:2::1 (ns1) => ns2, reuse port"
sleep 0.5
verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "dead:beef:2::1"\
"$server_addr_id" "$app6_port" "v6"
# ADD_ADDR from the server to client machine using a new port
:>"$client_evts"
server_addr_id=$((server_addr_id+1))
ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
$server_addr_id dev ns1eth2 port $new4_port
print_test "ADD_ADDR id:server+1 10.0.2.1 (ns1) => ns2, new port"
sleep 0.5
verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
"$server_addr_id" "$new4_port"
}
verify_remove_event()
{
local evt=$1
local e_type=$2
local e_token=$3
local e_id=$4
local type
local token
local id
type=$(mptcp_lib_evts_get_info type "$evt" $e_type)
token=$(mptcp_lib_evts_get_info token "$evt" $e_type)
id=$(mptcp_lib_evts_get_info rem_id "$evt" $e_type)
check_expected "type" "token" "id"
}
test_remove()
{
print_title "Remove tests"
# Capture events on the network namespace running the server
:>"$server_evts"
# RM_ADDR using an invalid token should result in no action
local invalid_token=$(( client4_token - 1 ))
ip netns exec "$ns2" ./pm_nl_ctl rem token $invalid_token id\
$client_addr_id > /dev/null 2>&1
print_test "RM_ADDR id:client ns2 => ns1, invalid token"
local type
type=$(mptcp_lib_evts_get_info type "$server_evts")
if [ "$type" = "" ]
then
test_pass
else
test_fail "unexpected type: ${type}"
fi
# RM_ADDR using an invalid addr id should result in no action
local invalid_id=$(( client_addr_id + 1 ))
ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
$invalid_id > /dev/null 2>&1
print_test "RM_ADDR id:client+1 ns2 => ns1, invalid id"
type=$(mptcp_lib_evts_get_info type "$server_evts")
if [ "$type" = "" ]
then
test_pass
else
test_fail "unexpected type: ${type}"
fi
# RM_ADDR from the client to server machine
:>"$server_evts"
ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
$client_addr_id
print_test "RM_ADDR id:client ns2 => ns1"
sleep 0.5
verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id"
# RM_ADDR from the client to server machine
:>"$server_evts"
client_addr_id=$(( client_addr_id - 1 ))
ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
$client_addr_id
print_test "RM_ADDR id:client-1 ns2 => ns1"
sleep 0.5
verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id"
# RM_ADDR6 from the client to server machine
:>"$server_evts"
ip netns exec "$ns2" ./pm_nl_ctl rem token "$client6_token" id\
$client_addr_id
print_test "RM_ADDR6 id:client-1 ns2 => ns1"
sleep 0.5
verify_remove_event "$server_evts" "$REMOVED" "$server6_token" "$client_addr_id"
# Capture events on the network namespace running the client
:>"$client_evts"
# RM_ADDR from the server to client machine
ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
$server_addr_id
print_test "RM_ADDR id:server ns1 => ns2"
sleep 0.5
verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id"
# RM_ADDR from the server to client machine
:>"$client_evts"
server_addr_id=$(( server_addr_id - 1 ))
ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
$server_addr_id
print_test "RM_ADDR id:server-1 ns1 => ns2"
sleep 0.5
verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id"
# RM_ADDR6 from the server to client machine
:>"$client_evts"
ip netns exec "$ns1" ./pm_nl_ctl rem token "$server6_token" id\
$server_addr_id
print_test "RM_ADDR6 id:server-1 ns1 => ns2"
sleep 0.5
verify_remove_event "$client_evts" "$REMOVED" "$client6_token" "$server_addr_id"
}
verify_subflow_events()
{
local evt=$1
local e_type=$2
local e_token=$3
local e_family=$4
local e_saddr=$5
local e_daddr=$6
local e_dport=$7
local e_locid=$8
local e_remid=$9
shift 2
local e_from=$8
local e_to=$9
local type
local token
local family
local saddr
local daddr
local dport
local locid
local remid
local info
local e_dport_txt
# only display the fixed ports
if [ "${e_dport}" -ge "${app4_port}" ] && [ "${e_dport}" -le "${app6_port}" ]; then
e_dport_txt=":${e_dport}"
fi
info="${e_saddr} (${e_from}) => ${e_daddr}${e_dport_txt} (${e_to})"
if [ "$e_type" = "$SUB_ESTABLISHED" ]
then
if [ "$e_family" = "$AF_INET6" ]
then
print_test "CREATE_SUBFLOW6 ${info}"
else
print_test "CREATE_SUBFLOW ${info}"
fi
else
if [ "$e_family" = "$AF_INET6" ]
then
print_test "DESTROY_SUBFLOW6 ${info}"
else
print_test "DESTROY_SUBFLOW ${info}"
fi
fi
type=$(mptcp_lib_evts_get_info type "$evt" $e_type)
token=$(mptcp_lib_evts_get_info token "$evt" $e_type)
family=$(mptcp_lib_evts_get_info family "$evt" $e_type)
dport=$(mptcp_lib_evts_get_info dport "$evt" $e_type)
locid=$(mptcp_lib_evts_get_info loc_id "$evt" $e_type)
remid=$(mptcp_lib_evts_get_info rem_id "$evt" $e_type)
if [ "$family" = "$AF_INET6" ]
then
saddr=$(mptcp_lib_evts_get_info saddr6 "$evt" $e_type)
daddr=$(mptcp_lib_evts_get_info daddr6 "$evt" $e_type)
else
saddr=$(mptcp_lib_evts_get_info saddr4 "$evt" $e_type)
daddr=$(mptcp_lib_evts_get_info daddr4 "$evt" $e_type)
fi
check_expected "type" "token" "daddr" "dport" "family" "saddr" "locid" "remid"
}
test_subflows()
{
print_title "Subflows v4 or v6 only tests"
# Capture events on the network namespace running the server
:>"$server_evts"
# Attempt to add a listener at 10.0.2.2:<subflow-port>
ip netns exec "$ns2" ./pm_nl_ctl listen 10.0.2.2\
"$client4_port" &
local listener_pid=$!
# ADD_ADDR from client to server machine reusing the subflow port
ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
$client_addr_id
sleep 0.5
# CREATE_SUBFLOW from server to client machine
:>"$server_evts"
ip netns exec "$ns1" ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2\
rport "$client4_port" token "$server4_token"
sleep 0.5
verify_subflow_events $server_evts $SUB_ESTABLISHED $server4_token $AF_INET "10.0.2.1" \
"10.0.2.2" "$client4_port" "23" "$client_addr_id" "ns1" "ns2"
# Delete the listener from the client ns, if one was created
mptcp_lib_kill_wait $listener_pid
local sport
sport=$(mptcp_lib_evts_get_info sport "$server_evts" $SUB_ESTABLISHED)
# DESTROY_SUBFLOW from server to client machine
:>"$server_evts"
ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\
"$client4_port" token "$server4_token"
sleep 0.5
verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
"10.0.2.2" "$client4_port" "23" "$client_addr_id" "ns1" "ns2"
# RM_ADDR from client to server machine
ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
"$client4_token"
sleep 0.5
# Attempt to add a listener at dead:beef:2::2:<subflow-port>
ip netns exec "$ns2" ./pm_nl_ctl listen dead:beef:2::2\
"$client6_port" &
listener_pid=$!
# ADD_ADDR6 from client to server machine reusing the subflow port
:>"$server_evts"
ip netns exec "$ns2" ./pm_nl_ctl ann dead:beef:2::2 token "$client6_token" id\
$client_addr_id
sleep 0.5
# CREATE_SUBFLOW6 from server to client machine
:>"$server_evts"
ip netns exec "$ns1" ./pm_nl_ctl csf lip dead:beef:2::1 lid 23 rip\
dead:beef:2::2 rport "$client6_port" token "$server6_token"
sleep 0.5
verify_subflow_events "$server_evts" "$SUB_ESTABLISHED" "$server6_token" "$AF_INET6"\
"dead:beef:2::1" "dead:beef:2::2" "$client6_port" "23"\
"$client_addr_id" "ns1" "ns2"
# Delete the listener from the client ns, if one was created
mptcp_lib_kill_wait $listener_pid
sport=$(mptcp_lib_evts_get_info sport "$server_evts" $SUB_ESTABLISHED)
# DESTROY_SUBFLOW6 from server to client machine
:>"$server_evts"
ip netns exec "$ns1" ./pm_nl_ctl dsf lip dead:beef:2::1 lport "$sport" rip\
dead:beef:2::2 rport "$client6_port" token "$server6_token"
sleep 0.5
verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server6_token" "$AF_INET6"\
"dead:beef:2::1" "dead:beef:2::2" "$client6_port" "23"\
"$client_addr_id" "ns1" "ns2"
# RM_ADDR from client to server machine
ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
"$client6_token"
sleep 0.5
# Attempt to add a listener at 10.0.2.2:<new-port>
ip netns exec "$ns2" ./pm_nl_ctl listen 10.0.2.2\
$new4_port &
listener_pid=$!
# ADD_ADDR from client to server machine using a new port
:>"$server_evts"
ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
$client_addr_id port $new4_port
sleep 0.5
# CREATE_SUBFLOW from server to client machine
:>"$server_evts"
ip netns exec "$ns1" ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2 rport\
$new4_port token "$server4_token"
sleep 0.5
verify_subflow_events "$server_evts" "$SUB_ESTABLISHED" "$server4_token" "$AF_INET"\
"10.0.2.1" "10.0.2.2" "$new4_port" "23"\
"$client_addr_id" "ns1" "ns2"
# Delete the listener from the client ns, if one was created
mptcp_lib_kill_wait $listener_pid
sport=$(mptcp_lib_evts_get_info sport "$server_evts" $SUB_ESTABLISHED)
# DESTROY_SUBFLOW from server to client machine
:>"$server_evts"
ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\
$new4_port token "$server4_token"
sleep 0.5
verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
"10.0.2.2" "$new4_port" "23" "$client_addr_id" "ns1" "ns2"
# RM_ADDR from client to server machine
ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
"$client4_token"
# Capture events on the network namespace running the client
:>"$client_evts"
# Attempt to add a listener at 10.0.2.1:<subflow-port>
ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
$app4_port &
listener_pid=$!
# ADD_ADDR from server to client machine reusing the subflow port
ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
$server_addr_id
sleep 0.5
# CREATE_SUBFLOW from client to server machine
:>"$client_evts"
ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
$app4_port token "$client4_token"
sleep 0.5
verify_subflow_events $client_evts $SUB_ESTABLISHED $client4_token $AF_INET "10.0.2.2"\
"10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
# Delete the listener from the server ns, if one was created
mptcp_lib_kill_wait $listener_pid
sport=$(mptcp_lib_evts_get_info sport "$client_evts" $SUB_ESTABLISHED)
# DESTROY_SUBFLOW from client to server machine
:>"$client_evts"
ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
$app4_port token "$client4_token"
sleep 0.5
verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
"10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
# RM_ADDR from server to client machine
ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
"$server4_token"
sleep 0.5
# Attempt to add a listener at dead:beef:2::1:<subflow-port>
ip netns exec "$ns1" ./pm_nl_ctl listen dead:beef:2::1\
$app6_port &
listener_pid=$!
# ADD_ADDR6 from server to client machine reusing the subflow port
:>"$client_evts"
ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\
$server_addr_id
sleep 0.5
# CREATE_SUBFLOW6 from client to server machine
:>"$client_evts"
ip netns exec "$ns2" ./pm_nl_ctl csf lip dead:beef:2::2 lid 23 rip\
dead:beef:2::1 rport $app6_port token "$client6_token"
sleep 0.5
verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client6_token"\
"$AF_INET6" "dead:beef:2::2"\
"dead:beef:2::1" "$app6_port" "23"\
"$server_addr_id" "ns2" "ns1"
# Delete the listener from the server ns, if one was created
mptcp_lib_kill_wait $listener_pid
sport=$(mptcp_lib_evts_get_info sport "$client_evts" $SUB_ESTABLISHED)
# DESTROY_SUBFLOW6 from client to server machine
:>"$client_evts"
ip netns exec "$ns2" ./pm_nl_ctl dsf lip dead:beef:2::2 lport "$sport" rip\
dead:beef:2::1 rport $app6_port token "$client6_token"
sleep 0.5
verify_subflow_events $client_evts $SUB_CLOSED $client6_token $AF_INET6 "dead:beef:2::2"\
"dead:beef:2::1" "$app6_port" "23" "$server_addr_id" "ns2" "ns1"
# RM_ADDR6 from server to client machine
ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
"$server6_token"
sleep 0.5
# Attempt to add a listener at 10.0.2.1:<new-port>
ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
$new4_port &
listener_pid=$!
# ADD_ADDR from server to client machine using a new port
:>"$client_evts"
ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
$server_addr_id port $new4_port
sleep 0.5
# CREATE_SUBFLOW from client to server machine
:>"$client_evts"
ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
$new4_port token "$client4_token"
sleep 0.5
verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client4_token" "$AF_INET"\
"10.0.2.2" "10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
# Delete the listener from the server ns, if one was created
mptcp_lib_kill_wait $listener_pid
sport=$(mptcp_lib_evts_get_info sport "$client_evts" $SUB_ESTABLISHED)
# DESTROY_SUBFLOW from client to server machine
:>"$client_evts"
ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
$new4_port token "$client4_token"
sleep 0.5
verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
"10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
# RM_ADDR from server to client machine
ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
"$server4_token"
}
test_subflows_v4_v6_mix()
{
print_title "Subflows v4 and v6 mix tests"
# Attempt to add a listener at 10.0.2.1:<subflow-port>
ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
$app6_port &
local listener_pid=$!
# ADD_ADDR4 from server to client machine reusing the subflow port on
# the established v6 connection
:>"$client_evts"
ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server6_token" id\
$server_addr_id dev ns1eth2
print_test "ADD_ADDR4 id:server 10.0.2.1 (ns1) => ns2, reuse port"
sleep 0.5
verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "10.0.2.1"\
"$server_addr_id" "$app6_port"
# CREATE_SUBFLOW from client to server machine
:>"$client_evts"
ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
$app6_port token "$client6_token"
sleep 0.5
verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client6_token"\
"$AF_INET" "10.0.2.2" "10.0.2.1" "$app6_port" "23"\
"$server_addr_id" "ns2" "ns1"
# Delete the listener from the server ns, if one was created
mptcp_lib_kill_wait $listener_pid
sport=$(mptcp_lib_evts_get_info sport "$client_evts" $SUB_ESTABLISHED)
# DESTROY_SUBFLOW from client to server machine
:>"$client_evts"
ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
$app6_port token "$client6_token"
sleep 0.5
verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client6_token" \
"$AF_INET" "10.0.2.2" "10.0.2.1" "$app6_port" "23"\
"$server_addr_id" "ns2" "ns1"
# RM_ADDR from server to client machine
ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
"$server6_token"
sleep 0.5
}
test_prio()
{
print_title "Prio tests"
local count
# Send MP_PRIO signal from client to server machine
ip netns exec "$ns2" ./pm_nl_ctl set 10.0.1.2 port "$client4_port" flags backup token "$client4_token" rip 10.0.1.1 rport "$app4_port"
sleep 0.5
# Check TX
print_test "MP_PRIO TX"
count=$(mptcp_lib_get_counter "$ns2" "MPTcpExtMPPrioTx")
if [ -z "$count" ]; then
test_skip
elif [ $count != 1 ]; then
test_fail "Count != 1: ${count}"
else
test_pass
fi
# Check RX
print_test "MP_PRIO RX"
count=$(mptcp_lib_get_counter "$ns1" "MPTcpExtMPPrioRx")
if [ -z "$count" ]; then
test_skip
elif [ $count != 1 ]; then
test_fail "Count != 1: ${count}"
else
test_pass
fi
}
verify_listener_events()
{
if mptcp_lib_verify_listener_events "${@}"; then
test_pass
else
test_fail
fi
}
test_listener()
{
print_title "Listener tests"
if ! mptcp_lib_kallsyms_has "mptcp_event_pm_listener$"; then
print_test "LISTENER events"
test_skip
return
fi
# Capture events on the network namespace running the client
:>$client_evts
# Attempt to add a listener at 10.0.2.2:<subflow-port>
ip netns exec $ns2 ./pm_nl_ctl listen 10.0.2.2\
$client4_port &
local listener_pid=$!
sleep 0.5
print_test "CREATE_LISTENER 10.0.2.2 (client port)"
verify_listener_events $client_evts $LISTENER_CREATED $AF_INET 10.0.2.2 $client4_port
# ADD_ADDR from client to server machine reusing the subflow port
ip netns exec $ns2 ./pm_nl_ctl ann 10.0.2.2 token $client4_token id\
$client_addr_id
sleep 0.5
# CREATE_SUBFLOW from server to client machine
ip netns exec $ns1 ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2\
rport $client4_port token $server4_token
sleep 0.5
# Delete the listener from the client ns, if one was created
mptcp_lib_kill_wait $listener_pid
sleep 0.5
print_test "CLOSE_LISTENER 10.0.2.2 (client port)"
verify_listener_events $client_evts $LISTENER_CLOSED $AF_INET 10.0.2.2 $client4_port
}
print_title "Make connections"
make_connection
make_connection "v6"
print_title "Will be using address IDs ${client_addr_id} (client) and ${server_addr_id} (server)"
test_announce
test_remove
test_subflows
test_subflows_v4_v6_mix
test_prio
test_listener
mptcp_lib_result_print_all_tap
exit ${ret}
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