#!/bin/bash # SPDX-License-Identifier: GPL-2.0 . "$(dirname "${0}")/mptcp_lib.sh" mptcp_lib_check_mptcp 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 ip -Version > /dev/null 2>&1 if [ $? -ne 0 ];then echo "SKIP: Cannot not run test without ip tool" exit ${KSFT_SKIP} fi ANNOUNCED=6 # MPTCP_EVENT_ANNOUNCED REMOVED=7 # MPTCP_EVENT_REMOVED SUB_ESTABLISHED=10 # MPTCP_EVENT_SUB_ESTABLISHED SUB_CLOSED=11 # MPTCP_EVENT_SUB_CLOSED AF_INET=2 AF_INET6=10 evts_pid=0 client4_pid=0 server4_pid=0 client6_pid=0 server6_pid=0 client4_token="" server4_token="" client6_token="" server6_token="" client4_port=0; client6_port=0; app4_port=50002 new4_port=50003 app6_port=50004 client_addr_id=${RANDOM:0:2} server_addr_id=${RANDOM:0:2} sec=$(date +%s) rndh=$(stdbuf -o0 -e0 printf %x "$sec")-$(mktemp -u XXXXXX) ns1="ns1-$rndh" ns2="ns2-$rndh" kill_wait() { kill $1 > /dev/null 2>&1 wait $1 2>/dev/null } cleanup() { echo "cleanup" rm -rf $file # Terminate the MPTCP connection and related processes if [ $client4_pid -ne 0 ]; then kill -SIGUSR1 $client4_pid > /dev/null 2>&1 fi if [ $server4_pid -ne 0 ]; then kill_wait $server4_pid fi if [ $client6_pid -ne 0 ]; then kill -SIGUSR1 $client6_pid > /dev/null 2>&1 fi if [ $server6_pid -ne 0 ]; then kill_wait $server6_pid fi if [ $evts_pid -ne 0 ]; then kill_wait $evts_pid fi local netns for netns in "$ns1" "$ns2" ;do ip netns del "$netns" done } trap cleanup EXIT # Create and configure network namespaces for testing for i in "$ns1" "$ns2" ;do ip netns add "$i" || exit 1 ip -net "$i" link set lo up ip netns exec "$i" sysctl -q net.mptcp.enabled=1 ip netns exec "$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 stdbuf -o0 -e0 printf "Created network namespaces ns1, ns2 \t\t\t[OK]\n" make_file() { # Store a chunk of data in a file to transmit over an MPTCP connection local name=$1 local ksize=1 dd if=/dev/urandom of="$name" bs=2 count=$ksize 2> /dev/null echo -e "\nMPTCP_TEST_FILE_END_MARKER" >> "$name" } make_connection() { local file file=$(mktemp) make_file "$file" "client" local is_v6=$1 local app_port=$app4_port local connect_addr="10.0.1.1" local listen_addr="0.0.0.0" if [ "$is_v6" = "v6" ] then connect_addr="dead:beef:1::1" listen_addr="::" app_port=$app6_port else is_v6="v4" fi # Capture netlink events over the two network namespaces running # the MPTCP client and server local client_evts client_evts=$(mktemp) :>"$client_evts" ip netns exec "$ns2" ./pm_nl_ctl events >> "$client_evts" 2>&1 & local client_evts_pid=$! local server_evts server_evts=$(mktemp) :>"$server_evts" ip netns exec "$ns1" ./pm_nl_ctl events >> "$server_evts" 2>&1 & local server_evts_pid=$! sleep 0.5 # 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 kill_wait $client_evts_pid local client_token local client_port local client_serverside local server_token local server_serverside client_token=$(sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q' "$client_evts") client_port=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$client_evts") client_serverside=$(sed --unbuffered -n 's/.*\(server_side:\)\([[:digit:]]*\).*$/\2/p;q'\ "$client_evts") kill_wait $server_evts_pid server_token=$(sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q' "$server_evts") server_serverside=$(sed --unbuffered -n 's/.*\(server_side:\)\([[:digit:]]*\).*$/\2/p;q'\ "$server_evts") rm -f "$client_evts" "$server_evts" "$file" if [ "$client_token" != "" ] && [ "$server_token" != "" ] && [ "$client_serverside" = 0 ] && [ "$server_serverside" = 1 ] then stdbuf -o0 -e0 printf "Established IP%s MPTCP Connection ns2 => ns1 \t\t[OK]\n" $is_v6 else exit 1 fi if [ "$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 } 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=$7 local type local token local addr local dport local id type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evt") token=$(sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q' "$evt") if [ "$e_af" = "v6" ] then addr=$(sed --unbuffered -n 's/.*\(daddr6:\)\([0-9a-f:.]*\).*$/\2/p;q' "$evt") else addr=$(sed --unbuffered -n 's/.*\(daddr4:\)\([0-9.]*\).*$/\2/p;q' "$evt") fi dport=$(sed --unbuffered -n 's/.*\(dport:\)\([[:digit:]]*\).*$/\2/p;q' "$evt") id=$(sed --unbuffered -n 's/.*\(rem_id:\)\([[:digit:]]*\).*$/\2/p;q' "$evt") if [ "$type" = "$e_type" ] && [ "$token" = "$e_token" ] && [ "$addr" = "$e_addr" ] && [ "$dport" = "$e_dport" ] && [ "$id" = "$e_id" ] then stdbuf -o0 -e0 printf "[OK]\n" return 0 fi stdbuf -o0 -e0 printf "[FAIL]\n" exit 1 } test_announce() { local evts evts=$(mktemp) # Capture events on the network namespace running the server :>"$evts" ip netns exec "$ns1" ./pm_nl_ctl events >> "$evts" 2>&1 & evts_pid=$! sleep 0.5 # ADD_ADDR using an invalid token should result in no action local invalid_token=$(( client4_token - 1)) ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token $invalid_token id\ $client_addr_id dev ns2eth1 > /dev/null 2>&1 local type type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evts") stdbuf -o0 -e0 printf "ADD_ADDR 10.0.2.2 (ns2) => ns1, invalid token \t\t" if [ "$type" = "" ] then stdbuf -o0 -e0 printf "[OK]\n" else stdbuf -o0 -e0 printf "[FAIL]\n" exit 1 fi # ADD_ADDR from the client to server machine reusing the subflow port :>"$evts" ip netns exec "$ns2"\ ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id $client_addr_id dev\ ns2eth1 > /dev/null 2>&1 stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.2 (ns2) => ns1, reuse port \t\t" $client_addr_id sleep 0.5 verify_announce_event "$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 :>"$evts" ip netns exec "$ns2" ./pm_nl_ctl ann\ dead:beef:2::2 token "$client6_token" id $client_addr_id dev ns2eth1 > /dev/null 2>&1 stdbuf -o0 -e0 printf "ADD_ADDR6 id:%d dead:beef:2::2 (ns2) => ns1, reuse port\t\t" $client_addr_id sleep 0.5 verify_announce_event "$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 :>"$evts" client_addr_id=$((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 > /dev/null 2>&1 stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.2 (ns2) => ns1, new port \t\t\t" $client_addr_id sleep 0.5 verify_announce_event "$evts" "$ANNOUNCED" "$server4_token" "10.0.2.2"\ "$client_addr_id" "$new4_port" kill_wait $evts_pid # Capture events on the network namespace running the client :>"$evts" ip netns exec "$ns2" ./pm_nl_ctl events >> "$evts" 2>&1 & evts_pid=$! sleep 0.5 # ADD_ADDR from the server to client machine reusing the subflow port ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\ $server_addr_id dev ns1eth2 > /dev/null 2>&1 stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.1 (ns1) => ns2, reuse port \t\t" $server_addr_id sleep 0.5 verify_announce_event "$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 :>"$evts" ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\ $server_addr_id dev ns1eth2 > /dev/null 2>&1 stdbuf -o0 -e0 printf "ADD_ADDR6 id:%d dead:beef:2::1 (ns1) => ns2, reuse port\t\t" $server_addr_id sleep 0.5 verify_announce_event "$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 :>"$evts" server_addr_id=$((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 > /dev/null 2>&1 stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.1 (ns1) => ns2, new port \t\t\t" $server_addr_id sleep 0.5 verify_announce_event "$evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\ "$server_addr_id" "$new4_port" kill_wait $evts_pid rm -f "$evts" } verify_remove_event() { local evt=$1 local e_type=$2 local e_token=$3 local e_id=$4 local type local token local id type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evt") token=$(sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q' "$evt") id=$(sed --unbuffered -n 's/.*\(rem_id:\)\([[:digit:]]*\).*$/\2/p;q' "$evt") if [ "$type" = "$e_type" ] && [ "$token" = "$e_token" ] && [ "$id" = "$e_id" ] then stdbuf -o0 -e0 printf "[OK]\n" return 0 fi stdbuf -o0 -e0 printf "[FAIL]\n" exit 1 } test_remove() { local evts evts=$(mktemp) # Capture events on the network namespace running the server :>"$evts" ip netns exec "$ns1" ./pm_nl_ctl events >> "$evts" 2>&1 & evts_pid=$! sleep 0.5 # RM_ADDR using an invalid token should result in no action local invalid_token=$(( client4_token - 1 )) ip netns exec "$ns2" ./pm_nl_ctl rem token $invalid_token id\ $client_addr_id > /dev/null 2>&1 stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1, invalid token \t"\ $client_addr_id local type type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evts") if [ "$type" = "" ] then stdbuf -o0 -e0 printf "[OK]\n" else stdbuf -o0 -e0 printf "[FAIL]\n" exit 1 fi # RM_ADDR using an invalid addr id should result in no action local invalid_id=$(( client_addr_id + 1 )) ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\ $invalid_id > /dev/null 2>&1 stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1, invalid id \t"\ $invalid_id type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evts") if [ "$type" = "" ] then stdbuf -o0 -e0 printf "[OK]\n" else stdbuf -o0 -e0 printf "[FAIL]\n" exit 1 fi # RM_ADDR from the client to server machine :>"$evts" ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\ $client_addr_id > /dev/null 2>&1 stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1 \t"\ $client_addr_id sleep 0.5 verify_remove_event "$evts" "$REMOVED" "$server4_token" "$client_addr_id" # RM_ADDR from the client to server machine :>"$evts" client_addr_id=$(( client_addr_id - 1 )) ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\ $client_addr_id > /dev/null 2>&1 stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1 \t"\ $client_addr_id sleep 0.5 verify_remove_event "$evts" "$REMOVED" "$server4_token" "$client_addr_id" # RM_ADDR6 from the client to server machine :>"$evts" ip netns exec "$ns2" ./pm_nl_ctl rem token "$client6_token" id\ $client_addr_id > /dev/null 2>&1 stdbuf -o0 -e0 printf "RM_ADDR6 id:%d ns2 => ns1 \t"\ $client_addr_id sleep 0.5 verify_remove_event "$evts" "$REMOVED" "$server6_token" "$client_addr_id" kill_wait $evts_pid # Capture events on the network namespace running the client :>"$evts" ip netns exec "$ns2" ./pm_nl_ctl events >> "$evts" 2>&1 & evts_pid=$! sleep 0.5 # RM_ADDR from the server to client machine ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\ $server_addr_id > /dev/null 2>&1 stdbuf -o0 -e0 printf "RM_ADDR id:%d ns1 => ns2 \t"\ $server_addr_id sleep 0.5 verify_remove_event "$evts" "$REMOVED" "$client4_token" "$server_addr_id" # RM_ADDR from the server to client machine :>"$evts" server_addr_id=$(( server_addr_id - 1 )) ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\ $server_addr_id > /dev/null 2>&1 stdbuf -o0 -e0 printf "RM_ADDR id:%d ns1 => ns2 \t" $server_addr_id sleep 0.5 verify_remove_event "$evts" "$REMOVED" "$client4_token" "$server_addr_id" # RM_ADDR6 from the server to client machine :>"$evts" ip netns exec "$ns1" ./pm_nl_ctl rem token "$server6_token" id\ $server_addr_id > /dev/null 2>&1 stdbuf -o0 -e0 printf "RM_ADDR6 id:%d ns1 => ns2 \t" $server_addr_id sleep 0.5 verify_remove_event "$evts" "$REMOVED" "$client6_token" "$server_addr_id" kill_wait $evts_pid rm -f "$evts" } 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=$9 local type local token local family local saddr local daddr local dport local locid local remid if [ "$e_type" = "$SUB_ESTABLISHED" ] then if [ "$e_family" = "$AF_INET6" ] then stdbuf -o0 -e0 printf "CREATE_SUBFLOW6 %s (%s) => %s (%s) "\ "$e_saddr" "$e_from" "$e_daddr" "$e_to" else stdbuf -o0 -e0 printf "CREATE_SUBFLOW %s (%s) => %s (%s) \t"\ "$e_saddr" "$e_from" "$e_daddr" "$e_to" fi else if [ "$e_family" = "$AF_INET6" ] then stdbuf -o0 -e0 printf "DESTROY_SUBFLOW6 %s (%s) => %s (%s) "\ "$e_saddr" "$e_from" "$e_daddr" "$e_to" else stdbuf -o0 -e0 printf "DESTROY_SUBFLOW %s (%s) => %s (%s) \t"\ "$e_saddr" "$e_from" "$e_daddr" "$e_to" fi fi type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evt") token=$(sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q' "$evt") family=$(sed --unbuffered -n 's/.*\(family:\)\([[:digit:]]*\).*$/\2/p;q' "$evt") dport=$(sed --unbuffered -n 's/.*\(dport:\)\([[:digit:]]*\).*$/\2/p;q' "$evt") locid=$(sed --unbuffered -n 's/.*\(loc_id:\)\([[:digit:]]*\).*$/\2/p;q' "$evt") remid=$(sed --unbuffered -n 's/.*\(rem_id:\)\([[:digit:]]*\).*$/\2/p;q' "$evt") if [ "$family" = "$AF_INET6" ] then saddr=$(sed --unbuffered -n 's/.*\(saddr6:\)\([0-9a-f:.]*\).*$/\2/p;q' "$evt") daddr=$(sed --unbuffered -n 's/.*\(daddr6:\)\([0-9a-f:.]*\).*$/\2/p;q' "$evt") else saddr=$(sed --unbuffered -n 's/.*\(saddr4:\)\([0-9.]*\).*$/\2/p;q' "$evt") daddr=$(sed --unbuffered -n 's/.*\(daddr4:\)\([0-9.]*\).*$/\2/p;q' "$evt") fi if [ "$type" = "$e_type" ] && [ "$token" = "$e_token" ] && [ "$daddr" = "$e_daddr" ] && [ "$e_dport" = "$dport" ] && [ "$family" = "$e_family" ] && [ "$saddr" = "$e_saddr" ] && [ "$e_locid" = "$locid" ] && [ "$e_remid" = "$remid" ] then stdbuf -o0 -e0 printf "[OK]\n" return 0 fi stdbuf -o0 -e0 printf "[FAIL]\n" exit 1 } test_subflows() { local evts evts=$(mktemp) # Capture events on the network namespace running the server :>"$evts" ip netns exec "$ns1" ./pm_nl_ctl events >> "$evts" 2>&1 & evts_pid=$! sleep 0.5 # Attempt to add a listener at 10.0.2.2: ip netns exec "$ns2" ./pm_nl_ctl listen 10.0.2.2\ "$client4_port" > /dev/null 2>&1 & local listener_pid=$! # 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\ $client_addr_id > /dev/null 2>&1 sleep 0.5 # CREATE_SUBFLOW from server to client machine :>"$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 "$server4_token" > /dev/null 2>&1 sleep 0.5 verify_subflow_events "$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 kill_wait $listener_pid local sport sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts") # DESTROY_SUBFLOW from server to client machine :>"$evts" ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\ "$client4_port" token "$server4_token" > /dev/null 2>&1 sleep 0.5 verify_subflow_events "$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" > /dev/null 2>&1 sleep 0.5 # Attempt to add a listener at dead:beef:2::2: ip netns exec "$ns2" ./pm_nl_ctl listen dead:beef:2::2\ "$client6_port" > /dev/null 2>&1 & listener_pid=$! # ADD_ADDR6 from client to server machine reusing the subflow port :>"$evts" ip netns exec "$ns2" ./pm_nl_ctl ann dead:beef:2::2 token "$client6_token" id\ $client_addr_id > /dev/null 2>&1 sleep 0.5 # CREATE_SUBFLOW6 from server to client machine :>"$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 "$server6_token" > /dev/null 2>&1 sleep 0.5 verify_subflow_events "$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 kill_wait $listener_pid sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts") # DESTROY_SUBFLOW6 from server to client machine :>"$evts" ip netns exec "$ns1" ./pm_nl_ctl dsf lip dead:beef:2::1 lport "$sport" rip\ dead:beef:2::2 rport "$client6_port" token "$server6_token" > /dev/null 2>&1 sleep 0.5 verify_subflow_events "$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" > /dev/null 2>&1 sleep 0.5 # Attempt to add a listener at 10.0.2.2: ip netns exec "$ns2" ./pm_nl_ctl listen 10.0.2.2\ $new4_port > /dev/null 2>&1 & listener_pid=$! # ADD_ADDR from client to server machine using a new port :>"$evts" ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\ $client_addr_id port $new4_port > /dev/null 2>&1 sleep 0.5 # CREATE_SUBFLOW from server to client machine :>"$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" > /dev/null 2>&1 sleep 0.5 verify_subflow_events "$evts" "$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 kill_wait $listener_pid sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts") # DESTROY_SUBFLOW from server to client machine :>"$evts" ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\ $new4_port token "$server4_token" > /dev/null 2>&1 sleep 0.5 verify_subflow_events "$evts" "$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" > /dev/null 2>&1 kill_wait $evts_pid # Capture events on the network namespace running the client :>"$evts" ip netns exec "$ns2" ./pm_nl_ctl events >> "$evts" 2>&1 & evts_pid=$! sleep 0.5 # Attempt to add a listener at 10.0.2.1: ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\ $app4_port > /dev/null 2>&1 & listener_pid=$! # 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\ $server_addr_id > /dev/null 2>&1 sleep 0.5 # CREATE_SUBFLOW from client to server machine :>"$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" > /dev/null 2>&1 sleep 0.5 verify_subflow_events "$evts" "$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 kill_wait $listener_pid sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts") # DESTROY_SUBFLOW from client to server machine :>"$evts" ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\ $app4_port token "$client4_token" > /dev/null 2>&1 sleep 0.5 verify_subflow_events "$evts" "$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" > /dev/null 2>&1 sleep 0.5 # Attempt to add a listener at dead:beef:2::1: ip netns exec "$ns1" ./pm_nl_ctl listen dead:beef:2::1\ $app6_port > /dev/null 2>&1 & listener_pid=$! # ADD_ADDR6 from server to client machine reusing the subflow port :>"$evts" ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\ $server_addr_id > /dev/null 2>&1 sleep 0.5 # CREATE_SUBFLOW6 from client to server machine :>"$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" > /dev/null 2>&1 sleep 0.5 verify_subflow_events "$evts" "$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 kill_wait $listener_pid sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts") # DESTROY_SUBFLOW6 from client to server machine :>"$evts" ip netns exec "$ns2" ./pm_nl_ctl dsf lip dead:beef:2::2 lport "$sport" rip\ dead:beef:2::1 rport $app6_port token "$client6_token" > /dev/null 2>&1 sleep 0.5 verify_subflow_events "$evts" "$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" > /dev/null 2>&1 sleep 0.5 # Attempt to add a listener at 10.0.2.1: ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\ $new4_port > /dev/null 2>&1 & listener_pid=$! # ADD_ADDR from server to client machine using a new port :>"$evts" ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\ $server_addr_id port $new4_port > /dev/null 2>&1 sleep 0.5 # CREATE_SUBFLOW from client to server machine :>"$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" > /dev/null 2>&1 sleep 0.5 verify_subflow_events "$evts" "$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 kill_wait $listener_pid sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts") # DESTROY_SUBFLOW from client to server machine :>"$evts" ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\ $new4_port token "$client4_token" > /dev/null 2>&1 sleep 0.5 verify_subflow_events "$evts" "$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" > /dev/null 2>&1 kill_wait $evts_pid rm -f "$evts" } test_subflows_v4_v6_mix() { local client_evts client_evts=$(mktemp) # Capture events on the network namespace running the client :>"$client_evts" ip netns exec "$ns2" ./pm_nl_ctl events >> "$client_evts" 2>&1 & evts_pid=$! sleep 0.5 # Attempt to add a listener at 10.0.2.1: ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\ $app6_port > /dev/null 2>&1 & local listener_pid=$! # 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 > /dev/null 2>&1 stdbuf -o0 -e0 printf "ADD_ADDR4 id:%d 10.0.2.1 (ns1) => ns2, reuse port\t\t" $server_addr_id sleep 0.5 verify_announce_event "$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" > /dev/null 2>&1 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 kill_wait $listener_pid sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$client_evts") # 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" > /dev/null 2>&1 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" > /dev/null 2>&1 sleep 0.5 kill_wait $evts_pid rm -f "$client_evts" } test_prio() { 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 stdbuf -o0 -e0 printf "MP_PRIO TX \t" count=$(ip netns exec "$ns2" nstat -as | grep MPTcpExtMPPrioTx | awk '{print $2}') [ -z "$count" ] && count=0 if [ $count != 1 ]; then stdbuf -o0 -e0 printf "[FAIL]\n" exit 1 else stdbuf -o0 -e0 printf "[OK]\n" fi # Check RX stdbuf -o0 -e0 printf "MP_PRIO RX \t" count=$(ip netns exec "$ns1" nstat -as | grep MPTcpExtMPPrioRx | awk '{print $2}') [ -z "$count" ] && count=0 if [ $count != 1 ]; then stdbuf -o0 -e0 printf "[FAIL]\n" exit 1 else stdbuf -o0 -e0 printf "[OK]\n" fi } make_connection make_connection "v6" test_announce test_remove test_subflows test_subflows_v4_v6_mix test_prio exit 0