Merging upstream version 6.10.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 458 insertions, 256 deletions

diff --git a/tools/testing/selftests/net/mptcp/diag.sh b/tools/testing/selftests/net/mptcp/diag.sh
index bc97ab33a0..776d43a692 100755
--- a/tools/testing/selftests/net/mptcp/diag.sh
+++ b/tools/testing/selftests/net/mptcp/diag.sh
@@ -200,6 +200,58 @@ chk_msk_cestab()
 		 "${expected}" "${msg}" ""
 }
 
+msk_info_get_value()
+{
+	local port="${1}"
+	local info="${2}"
+
+	ss -N "${ns}" -inHM dport "${port}" | \
+		mptcp_lib_get_info_value "${info}" "${info}"
+}
+
+chk_msk_info()
+{
+	local port="${1}"
+	local info="${2}"
+	local cnt="${3}"
+	local msg="....chk ${info}"
+	local delta_ms=250  # half what we waited before, just to be sure
+	local now
+
+	now=$(msk_info_get_value "${port}" "${info}")
+
+	mptcp_lib_print_title "${msg}"
+	if { [ -z "${cnt}" ] || [ -z "${now}" ]; } &&
+	   ! mptcp_lib_expect_all_features; then
+		mptcp_lib_pr_skip "Feature probably not supported"
+		mptcp_lib_result_skip "${msg}"
+	elif [ "$((cnt + delta_ms))" -lt "${now}" ]; then
+		mptcp_lib_pr_ok
+		mptcp_lib_result_pass "${msg}"
+	else
+		mptcp_lib_pr_fail "value of ${info} changed by $((now - cnt))ms," \
+				  "expected at least ${delta_ms}ms"
+		mptcp_lib_result_fail "${msg}"
+		ret=${KSFT_FAIL}
+	fi
+}
+
+chk_last_time_info()
+{
+	local port="${1}"
+	local data_sent data_recv ack_recv
+
+	data_sent=$(msk_info_get_value "${port}" "last_data_sent")
+	data_recv=$(msk_info_get_value "${port}" "last_data_recv")
+	ack_recv=$(msk_info_get_value "${port}" "last_ack_recv")
+
+	sleep 0.5  # wait to check after if the timestamps difference
+
+	chk_msk_info "${port}" "last_data_sent" "${data_sent}"
+	chk_msk_info "${port}" "last_data_recv" "${data_recv}"
+	chk_msk_info "${port}" "last_ack_recv" "${ack_recv}"
+}
+
 wait_connected()
 {
 	local listener_ns="${1}"
@@ -233,6 +285,7 @@ echo "b" | \
 				127.0.0.1 >/dev/null &
 wait_connected $ns 10000
 chk_msk_nr 2 "after MPC handshake "
+chk_last_time_info 10000
 chk_msk_remote_key_nr 2 "....chk remote_key"
 chk_msk_fallback_nr 0 "....chk no fallback"
 chk_msk_inuse 2
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.sh b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
index 4131f3263a..b77fb7065b 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_connect.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
@@ -147,7 +147,7 @@ cleanup()
 
 mptcp_lib_check_mptcp
 mptcp_lib_check_kallsyms
-mptcp_lib_check_tools ip
+mptcp_lib_check_tools ip tc
 
 sin=$(mktemp)
 sout=$(mktemp)
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 2290125f6d..108aeeb84e 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -31,7 +31,6 @@ timeout_poll=30
 timeout_test=$((timeout_poll * 2 + 1))
 capture=false
 checksum=false
-ip_mptcp=0
 check_invert=0
 validate_checksum=false
 init=0
@@ -142,7 +141,7 @@ init() {
 
 	mptcp_lib_check_mptcp
 	mptcp_lib_check_kallsyms
-	mptcp_lib_check_tools ip ss "${iptables}" "${ip6tables}"
+	mptcp_lib_check_tools ip tc ss "${iptables}" "${ip6tables}"
 
 	sin=$(mktemp)
 	sout=$(mktemp)
@@ -610,173 +609,65 @@ kill_events_pids()
 
 pm_nl_set_limits()
 {
-	local ns=$1
-	local addrs=$2
-	local subflows=$3
-
-	if [ $ip_mptcp -eq 1 ]; then
-		ip -n $ns mptcp limits set add_addr_accepted $addrs subflows $subflows
-	else
-		ip netns exec $ns ./pm_nl_ctl limits $addrs $subflows
-	fi
+	mptcp_lib_pm_nl_set_limits "${@}"
 }
 
 pm_nl_add_endpoint()
 {
-	local ns=$1
-	local addr=$2
-	local flags _flags
-	local port _port
-	local dev _dev
-	local id _id
-	local nr=2
-
-	local p
-	for p in "${@}"
-	do
-		if [ $p = "flags" ]; then
-			eval _flags=\$"$nr"
-			[ -n "$_flags" ]; flags="flags $_flags"
-		fi
-		if [ $p = "dev" ]; then
-			eval _dev=\$"$nr"
-			[ -n "$_dev" ]; dev="dev $_dev"
-		fi
-		if [ $p = "id" ]; then
-			eval _id=\$"$nr"
-			[ -n "$_id" ]; id="id $_id"
-		fi
-		if [ $p = "port" ]; then
-			eval _port=\$"$nr"
-			[ -n "$_port" ]; port="port $_port"
-		fi
-
-		nr=$((nr + 1))
-	done
-
-	if [ $ip_mptcp -eq 1 ]; then
-		ip -n $ns mptcp endpoint add $addr ${_flags//","/" "} $dev $id $port
-	else
-		ip netns exec $ns ./pm_nl_ctl add $addr $flags $dev $id $port
-	fi
+	mptcp_lib_pm_nl_add_endpoint "${@}"
 }
 
 pm_nl_del_endpoint()
 {
-	local ns=$1
-	local id=$2
-	local addr=$3
-
-	if [ $ip_mptcp -eq 1 ]; then
-		[ $id -ne 0 ] && addr=''
-		ip -n $ns mptcp endpoint delete id $id $addr
-	else
-		ip netns exec $ns ./pm_nl_ctl del $id $addr
-	fi
+	mptcp_lib_pm_nl_del_endpoint "${@}"
 }
 
 pm_nl_flush_endpoint()
 {
-	local ns=$1
-
-	if [ $ip_mptcp -eq 1 ]; then
-		ip -n $ns mptcp endpoint flush
-	else
-		ip netns exec $ns ./pm_nl_ctl flush
-	fi
+	mptcp_lib_pm_nl_flush_endpoint "${@}"
 }
 
 pm_nl_show_endpoints()
 {
-	local ns=$1
-
-	if [ $ip_mptcp -eq 1 ]; then
-		ip -n $ns mptcp endpoint show
-	else
-		ip netns exec $ns ./pm_nl_ctl dump
-	fi
+	mptcp_lib_pm_nl_show_endpoints "${@}"
 }
 
 pm_nl_change_endpoint()
 {
-	local ns=$1
-	local id=$2
-	local flags=$3
-
-	if [ $ip_mptcp -eq 1 ]; then
-		ip -n $ns mptcp endpoint change id $id ${flags//","/" "}
-	else
-		ip netns exec $ns ./pm_nl_ctl set id $id flags $flags
-	fi
+	mptcp_lib_pm_nl_change_endpoint "${@}"
 }
 
 pm_nl_check_endpoint()
 {
-	local line expected_line
 	local msg="$1"
 	local ns=$2
 	local addr=$3
-	local _flags=""
-	local flags
-	local _port
-	local port
-	local dev
-	local _id
-	local id
+	local flags dev id port
 
 	print_check "${msg}"
 
 	shift 3
 	while [ -n "$1" ]; do
-		if [ $1 = "flags" ]; then
-			_flags=$2
-			[ -n "$_flags" ]; flags="flags $_flags"
-			shift
-		elif [ $1 = "dev" ]; then
-			[ -n "$2" ]; dev="dev $2"
+		case "${1}" in
+		"flags" | "dev" | "id" | "port")
+			eval "${1}"="${2}"
 			shift
-		elif [ $1 = "id" ]; then
-			_id=$2
-			[ -n "$_id" ]; id="id $_id"
-			shift
-		elif [ $1 = "port" ]; then
-			_port=$2
-			[ -n "$_port" ]; port=" port $_port"
-			shift
-		fi
+			;;
+		*)
+			;;
+		esac
 
 		shift
 	done
 
-	if [ -z "$id" ]; then
+	if [ -z "${id}" ]; then
 		test_fail "bad test - missing endpoint id"
 		return
 	fi
 
-	if [ $ip_mptcp -eq 1 ]; then
-		# get line and trim trailing whitespace
-		line=$(ip -n $ns mptcp endpoint show $id)
-		line="${line% }"
-		# the dump order is: address id flags port dev
-		[ -n "$addr" ] && expected_line="$addr"
-		expected_line+=" $id"
-		[ -n "$_flags" ] && expected_line+=" ${_flags//","/" "}"
-		[ -n "$dev" ] && expected_line+=" $dev"
-		[ -n "$port" ] && expected_line+=" $port"
-	else
-		line=$(ip netns exec $ns ./pm_nl_ctl get $_id)
-		# the dump order is: id flags dev address port
-		expected_line="$id"
-		[ -n "$flags" ] && expected_line+=" $flags"
-		[ -n "$dev" ] && expected_line+=" $dev"
-		[ -n "$addr" ] && expected_line+=" $addr"
-		[ -n "$_port" ] && expected_line+=" $_port"
-	fi
-	if [ "$line" = "$expected_line" ]; then
-		print_ok
-	else
-		fail_test "expected '$expected_line' found '$line'"
-	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()
@@ -3711,7 +3602,7 @@ while getopts "${all_tests_args}cCih" opt; do
 			checksum=true
 			;;
 		i)
-			ip_mptcp=1
+			mptcp_lib_set_ip_mptcp
 			;;
 		h)
 			usage
diff --git a/tools/testing/selftests/net/mptcp/mptcp_lib.sh b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
index d529b4b37a..6ffa9b7a32 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_lib.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
@@ -21,8 +21,10 @@ declare -rx MPTCP_LIB_AF_INET6=10
 
 MPTCP_LIB_SUBTESTS=()
 MPTCP_LIB_SUBTESTS_DUPLICATED=0
+MPTCP_LIB_SUBTEST_FLAKY=0
 MPTCP_LIB_TEST_COUNTER=0
 MPTCP_LIB_TEST_FORMAT="%02u %-50s"
+MPTCP_LIB_IP_MPTCP=0
 
 # only if supported (or forced) and not disabled, see no-color.org
 if { [ -t 1 ] || [ "${SELFTESTS_MPTCP_LIB_COLOR_FORCE:-}" = "1" ]; } &&
@@ -40,6 +42,16 @@ else
 	readonly MPTCP_LIB_COLOR_RESET=
 fi
 
+# SELFTESTS_MPTCP_LIB_OVERRIDE_FLAKY env var can be set not to ignore errors
+# from subtests marked as flaky
+mptcp_lib_override_flaky() {
+	[ "${SELFTESTS_MPTCP_LIB_OVERRIDE_FLAKY:-}" = 1 ]
+}
+
+mptcp_lib_subtest_is_flaky() {
+	[ "${MPTCP_LIB_SUBTEST_FLAKY}" = 1 ] && ! mptcp_lib_override_flaky
+}
+
 # $1: color, $2: text
 mptcp_lib_print_color() {
 	echo -e "${MPTCP_LIB_START_PRINT:-}${*}${MPTCP_LIB_COLOR_RESET}"
@@ -71,7 +83,16 @@ mptcp_lib_pr_skip() {
 }
 
 mptcp_lib_pr_fail() {
-	mptcp_lib_print_err "[FAIL]${1:+ ${*}}"
+	local title cmt
+
+	if mptcp_lib_subtest_is_flaky; then
+		title="IGNO"
+		cmt=" (flaky)"
+	else
+		title="FAIL"
+	fi
+
+	mptcp_lib_print_err "[${title}]${cmt}${1:+ ${*}}"
 }
 
 mptcp_lib_pr_info() {
@@ -207,7 +228,13 @@ mptcp_lib_result_pass() {
 
 # $1: test name
 mptcp_lib_result_fail() {
-	__mptcp_lib_result_add "not ok" "${1}"
+	if mptcp_lib_subtest_is_flaky; then
+		# It might sound better to use 'not ok # TODO' or 'ok # SKIP',
+		# but some CIs don't understand 'TODO' and treat SKIP as errors.
+		__mptcp_lib_result_add "ok" "${1} # IGNORE Flaky"
+	else
+		__mptcp_lib_result_add "not ok" "${1}"
+	fi
 }
 
 # $1: test name
@@ -384,6 +411,12 @@ mptcp_lib_check_tools() {
 				exit ${KSFT_SKIP}
 			fi
 			;;
+		"tc")
+			if ! tc -help &> /dev/null; then
+				mptcp_lib_pr_skip "Could not run test without tc tool"
+				exit ${KSFT_SKIP}
+			fi
+			;;
 		"ss")
 			if ! ss -h | grep -q MPTCP; then
 				mptcp_lib_pr_skip "ss tool does not support MPTCP"
@@ -505,3 +538,131 @@ mptcp_lib_verify_listener_events() {
 	mptcp_lib_check_expected "type" "family" "saddr" "sport" || rc="${?}"
 	return "${rc}"
 }
+
+mptcp_lib_set_ip_mptcp() {
+	MPTCP_LIB_IP_MPTCP=1
+}
+
+mptcp_lib_is_ip_mptcp() {
+	[ "${MPTCP_LIB_IP_MPTCP}" = "1" ]
+}
+
+# format: <id>,<ip>,<flags>,<dev>
+mptcp_lib_pm_nl_format_endpoints() {
+	local entry id ip flags dev port
+
+	for entry in "${@}"; do
+		IFS=, read -r id ip flags dev port <<< "${entry}"
+		if mptcp_lib_is_ip_mptcp; then
+			echo -n "${ip}"
+			[ -n "${port}" ] && echo -n " port ${port}"
+			echo -n " id ${id}"
+			[ -n "${flags}" ] && echo -n " ${flags}"
+			[ -n "${dev}" ] && echo -n " dev ${dev}"
+			echo " " # always a space at the end
+		else
+			echo -n "id ${id}"
+			echo -n " flags ${flags//" "/","}"
+			[ -n "${dev}" ] && echo -n " dev ${dev}"
+			echo -n " ${ip}"
+			[ -n "${port}" ] && echo -n " ${port}"
+			echo ""
+		fi
+	done
+}
+
+mptcp_lib_pm_nl_get_endpoint() {
+	local ns=${1}
+	local id=${2}
+
+	if mptcp_lib_is_ip_mptcp; then
+		ip -n "${ns}" mptcp endpoint show id "${id}"
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl get "${id}"
+	fi
+}
+
+mptcp_lib_pm_nl_set_limits() {
+	local ns=${1}
+	local addrs=${2}
+	local subflows=${3}
+
+	if mptcp_lib_is_ip_mptcp; then
+		ip -n "${ns}" mptcp limits set add_addr_accepted "${addrs}" subflows "${subflows}"
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl limits "${addrs}" "${subflows}"
+	fi
+}
+
+mptcp_lib_pm_nl_add_endpoint() {
+	local ns=${1}
+	local addr=${2}
+	local flags dev id port
+	local nr=2
+
+	local p
+	for p in "${@}"; do
+		case "${p}" in
+		"flags" | "dev" | "id" | "port")
+			eval "${p}"=\$"${nr}"
+			;;
+		esac
+
+		nr=$((nr + 1))
+	done
+
+	if mptcp_lib_is_ip_mptcp; then
+		# shellcheck disable=SC2086 # blanks in flags, no double quote
+		ip -n "${ns}" mptcp endpoint add "${addr}" ${flags//","/" "} \
+			${dev:+dev "${dev}"} ${id:+id "${id}"} ${port:+port "${port}"}
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl add "${addr}" ${flags:+flags "${flags}"} \
+			${dev:+dev "${dev}"} ${id:+id "${id}"} ${port:+port "${port}"}
+	fi
+}
+
+mptcp_lib_pm_nl_del_endpoint() {
+	local ns=${1}
+	local id=${2}
+	local addr=${3}
+
+	if mptcp_lib_is_ip_mptcp; then
+		[ "${id}" -ne 0 ] && addr=''
+		ip -n "${ns}" mptcp endpoint delete id "${id}" ${addr:+"${addr}"}
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl del "${id}" "${addr}"
+	fi
+}
+
+mptcp_lib_pm_nl_flush_endpoint() {
+	local ns=${1}
+
+	if mptcp_lib_is_ip_mptcp; then
+		ip -n "${ns}" mptcp endpoint flush
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl flush
+	fi
+}
+
+mptcp_lib_pm_nl_show_endpoints() {
+	local ns=${1}
+
+	if mptcp_lib_is_ip_mptcp; then
+		ip -n "${ns}" mptcp endpoint show
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl dump
+	fi
+}
+
+mptcp_lib_pm_nl_change_endpoint() {
+	local ns=${1}
+	local id=${2}
+	local flags=${3}
+
+	if mptcp_lib_is_ip_mptcp; then
+		# shellcheck disable=SC2086 # blanks in flags, no double quote
+		ip -n "${ns}" mptcp endpoint change id "${id}" ${flags//","/" "}
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl set id "${id}" flags "${flags}"
+	fi
+}
diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
index e2d70c1878..68899a303a 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
@@ -22,6 +22,28 @@ 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
@@ -58,15 +80,15 @@ init()
 		# 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
+		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
 
-		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
+		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
 
-	ip netns exec $ns1 ./pm_nl_ctl limits 8 8
-	ip netns exec $ns2 ./pm_nl_ctl limits 8 8
+	mptcp_lib_pm_nl_set_limits "${ns1}" 8 8
+	mptcp_lib_pm_nl_set_limits "${ns2}" 8 8
 
 	add_mark_rules $ns1 1
 	add_mark_rules $ns2 2
diff --git a/tools/testing/selftests/net/mptcp/pm_netlink.sh b/tools/testing/selftests/net/mptcp/pm_netlink.sh
index 6ab8c5d363..2757378b1b 100755
--- a/tools/testing/selftests/net/mptcp/pm_netlink.sh
+++ b/tools/testing/selftests/net/mptcp/pm_netlink.sh
@@ -1,28 +1,28 @@
 #!/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
 
 usage() {
-	echo "Usage: $0 [ -h ]"
+	echo "Usage: $0 [ -i ] [ -h ]"
+	echo -e "\t-i: use 'ip mptcp' instead of 'pm_nl_ctl'"
+	echo -e "\t-h: help"
 }
 
-optstring=h
+optstring=hi
 while getopts "$optstring" option;do
 	case "$option" in
 	"h")
-		usage $0
+		usage "$0"
 		exit ${KSFT_PASS}
 		;;
+	"i")
+		mptcp_lib_set_ip_mptcp
+		;;
 	"?")
-		usage $0
+		usage "$0"
 		exit ${KSFT_FAIL}
 		;;
 	esac
@@ -35,7 +35,7 @@ err=$(mktemp)
 #shellcheck disable=SC2317
 cleanup()
 {
-	rm -f $err
+	rm -f "${err}"
 	mptcp_lib_ns_exit "${ns1}"
 }
 
@@ -46,6 +46,76 @@ trap cleanup EXIT
 
 mptcp_lib_ns_init ns1
 
+format_limits() {
+	local accept="${1}"
+	local subflows="${2}"
+
+	if mptcp_lib_is_ip_mptcp; then
+		# with a space at the end
+		printf "add_addr_accepted %d subflows %d \n" "${accept}" "${subflows}"
+	else
+		printf "accept %d\nsubflows %d\n" "${accept}" "${subflows}"
+	fi
+}
+
+get_limits() {
+	if mptcp_lib_is_ip_mptcp; then
+		ip -n "${ns1}" mptcp limits
+	else
+		ip netns exec "${ns1}" ./pm_nl_ctl limits
+	fi
+}
+
+format_endpoints() {
+	mptcp_lib_pm_nl_format_endpoints "${@}"
+}
+
+get_endpoint() {
+	# shellcheck disable=SC2317 # invoked indirectly
+	mptcp_lib_pm_nl_get_endpoint "${ns1}" "${@}"
+}
+
+change_address() {
+	local addr=${1}
+	local flags=${2}
+
+	if mptcp_lib_is_ip_mptcp; then
+		ip -n "${ns1}" mptcp endpoint change "${addr}" "${flags}"
+	else
+		ip netns exec "${ns1}" ./pm_nl_ctl set "${addr}" flags "${flags}"
+	fi
+}
+
+set_limits()
+{
+	mptcp_lib_pm_nl_set_limits "${ns1}" "${@}"
+}
+
+add_endpoint()
+{
+	mptcp_lib_pm_nl_add_endpoint "${ns1}" "${@}"
+}
+
+del_endpoint()
+{
+	mptcp_lib_pm_nl_del_endpoint "${ns1}" "${@}"
+}
+
+flush_endpoint()
+{
+	mptcp_lib_pm_nl_flush_endpoint "${ns1}"
+}
+
+show_endpoints()
+{
+	mptcp_lib_pm_nl_show_endpoints "${ns1}"
+}
+
+change_endpoint()
+{
+	mptcp_lib_pm_nl_change_endpoint "${ns1}" "${@}"
+}
+
 check()
 {
 	local cmd="$1"
@@ -67,125 +137,126 @@ check()
 	fi
 }
 
-check "ip netns exec $ns1 ./pm_nl_ctl dump" "" "defaults addr list"
+check "show_endpoints" "" "defaults addr list"
 
-default_limits="$(ip netns exec $ns1 ./pm_nl_ctl limits)"
+default_limits="$(get_limits)"
 if mptcp_lib_expect_all_features; then
-	check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 0
-subflows 2" "defaults limits"
+	check "get_limits" "$(format_limits 0 2)" "defaults limits"
 fi
 
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.1
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.2 flags subflow dev lo
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.3 flags signal,backup
-check "ip netns exec $ns1 ./pm_nl_ctl get 1" "id 1 flags  10.0.1.1" "simple add/get addr"
+add_endpoint 10.0.1.1
+add_endpoint 10.0.1.2 flags subflow dev lo
+add_endpoint 10.0.1.3 flags signal,backup
+check "get_endpoint 1" "$(format_endpoints "1,10.0.1.1")" "simple add/get addr"
 
-check "ip netns exec $ns1 ./pm_nl_ctl dump" \
-"id 1 flags  10.0.1.1
-id 2 flags subflow dev lo 10.0.1.2
-id 3 flags signal,backup 10.0.1.3" "dump addrs"
+check "show_endpoints" \
+	"$(format_endpoints "1,10.0.1.1" \
+			    "2,10.0.1.2,subflow,lo" \
+			    "3,10.0.1.3,signal backup")" "dump addrs"
 
-ip netns exec $ns1 ./pm_nl_ctl del 2
-check "ip netns exec $ns1 ./pm_nl_ctl get 2" "" "simple del addr"
-check "ip netns exec $ns1 ./pm_nl_ctl dump" \
-"id 1 flags  10.0.1.1
-id 3 flags signal,backup 10.0.1.3" "dump addrs after del"
+del_endpoint 2
+check "get_endpoint 2" "" "simple del addr"
+check "show_endpoints" \
+	"$(format_endpoints "1,10.0.1.1" \
+			    "3,10.0.1.3,signal backup")" "dump addrs after del"
 
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.3 2>/dev/null
-check "ip netns exec $ns1 ./pm_nl_ctl get 4" "" "duplicate addr"
+add_endpoint 10.0.1.3 2>/dev/null
+check "get_endpoint 4" "" "duplicate addr"
 
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.4 flags signal
-check "ip netns exec $ns1 ./pm_nl_ctl get 4" "id 4 flags signal 10.0.1.4" "id addr increment"
+add_endpoint 10.0.1.4 flags signal
+check "get_endpoint 4" "$(format_endpoints "4,10.0.1.4,signal")" "id addr increment"
 
 for i in $(seq 5 9); do
-	ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.$i flags signal >/dev/null 2>&1
+	add_endpoint "10.0.1.${i}" flags signal >/dev/null 2>&1
 done
-check "ip netns exec $ns1 ./pm_nl_ctl get 9" "id 9 flags signal 10.0.1.9" "hard addr limit"
-check "ip netns exec $ns1 ./pm_nl_ctl get 10" "" "above hard addr limit"
+check "get_endpoint 9" "$(format_endpoints "9,10.0.1.9,signal")" "hard addr limit"
+check "get_endpoint 10" "" "above hard addr limit"
 
-ip netns exec $ns1 ./pm_nl_ctl del 9
+del_endpoint 9
 for i in $(seq 10 255); do
-	ip netns exec $ns1 ./pm_nl_ctl add 10.0.0.9 id $i
-	ip netns exec $ns1 ./pm_nl_ctl del $i
+	add_endpoint 10.0.0.9 id "${i}"
+	del_endpoint "${i}"
 done
-check "ip netns exec $ns1 ./pm_nl_ctl dump" "id 1 flags  10.0.1.1
-id 3 flags signal,backup 10.0.1.3
-id 4 flags signal 10.0.1.4
-id 5 flags signal 10.0.1.5
-id 6 flags signal 10.0.1.6
-id 7 flags signal 10.0.1.7
-id 8 flags signal 10.0.1.8" "id limit"
-
-ip netns exec $ns1 ./pm_nl_ctl flush
-check "ip netns exec $ns1 ./pm_nl_ctl dump" "" "flush addrs"
-
-ip netns exec $ns1 ./pm_nl_ctl limits 9 1 2>/dev/null
-check "ip netns exec $ns1 ./pm_nl_ctl limits" "$default_limits" "rcv addrs above hard limit"
-
-ip netns exec $ns1 ./pm_nl_ctl limits 1 9 2>/dev/null
-check "ip netns exec $ns1 ./pm_nl_ctl limits" "$default_limits" "subflows above hard limit"
-
-ip netns exec $ns1 ./pm_nl_ctl limits 8 8
-check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 8
-subflows 8" "set limits"
-
-ip netns exec $ns1 ./pm_nl_ctl flush
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.1
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.2
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.3 id 100
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.4
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.5 id 254
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.6
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.7
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.8
-check "ip netns exec $ns1 ./pm_nl_ctl dump" "id 1 flags  10.0.1.1
-id 2 flags  10.0.1.2
-id 3 flags  10.0.1.7
-id 4 flags  10.0.1.8
-id 100 flags  10.0.1.3
-id 101 flags  10.0.1.4
-id 254 flags  10.0.1.5
-id 255 flags  10.0.1.6" "set ids"
-
-ip netns exec $ns1 ./pm_nl_ctl flush
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.0.1
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.0.2 id 254
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.0.3
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.0.4
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.0.5 id 253
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.0.6
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.0.7
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.0.8
-check "ip netns exec $ns1 ./pm_nl_ctl dump" "id 1 flags  10.0.0.1
-id 2 flags  10.0.0.4
-id 3 flags  10.0.0.6
-id 4 flags  10.0.0.7
-id 5 flags  10.0.0.8
-id 253 flags  10.0.0.5
-id 254 flags  10.0.0.2
-id 255 flags  10.0.0.3" "wrap-around ids"
-
-ip netns exec $ns1 ./pm_nl_ctl flush
-ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.1 flags subflow
-ip netns exec $ns1 ./pm_nl_ctl set 10.0.1.1 flags backup
-check "ip netns exec $ns1 ./pm_nl_ctl dump" "id 1 flags \
-subflow,backup 10.0.1.1" "set flags (backup)"
-ip netns exec $ns1 ./pm_nl_ctl set 10.0.1.1 flags nobackup
-check "ip netns exec $ns1 ./pm_nl_ctl dump" "id 1 flags \
-subflow 10.0.1.1" "          (nobackup)"
+check "show_endpoints" \
+	"$(format_endpoints "1,10.0.1.1" \
+			    "3,10.0.1.3,signal backup" \
+			    "4,10.0.1.4,signal" \
+			    "5,10.0.1.5,signal" \
+			    "6,10.0.1.6,signal" \
+			    "7,10.0.1.7,signal" \
+			    "8,10.0.1.8,signal")" "id limit"
+
+flush_endpoint
+check "show_endpoints" "" "flush addrs"
+
+set_limits 9 1 2>/dev/null
+check "get_limits" "${default_limits}" "rcv addrs above hard limit"
+
+set_limits 1 9 2>/dev/null
+check "get_limits" "${default_limits}" "subflows above hard limit"
+
+set_limits 8 8
+check "get_limits" "$(format_limits 8 8)" "set limits"
+
+flush_endpoint
+add_endpoint 10.0.1.1
+add_endpoint 10.0.1.2
+add_endpoint 10.0.1.3 id 100
+add_endpoint 10.0.1.4
+add_endpoint 10.0.1.5 id 254
+add_endpoint 10.0.1.6
+add_endpoint 10.0.1.7
+add_endpoint 10.0.1.8
+check "show_endpoints" \
+	"$(format_endpoints "1,10.0.1.1" \
+			    "2,10.0.1.2" \
+			    "3,10.0.1.7" \
+			    "4,10.0.1.8" \
+			    "100,10.0.1.3" \
+			    "101,10.0.1.4" \
+			    "254,10.0.1.5" \
+			    "255,10.0.1.6")" "set ids"
+
+flush_endpoint
+add_endpoint 10.0.0.1
+add_endpoint 10.0.0.2 id 254
+add_endpoint 10.0.0.3
+add_endpoint 10.0.0.4
+add_endpoint 10.0.0.5 id 253
+add_endpoint 10.0.0.6
+add_endpoint 10.0.0.7
+add_endpoint 10.0.0.8
+check "show_endpoints" \
+	"$(format_endpoints "1,10.0.0.1" \
+			    "2,10.0.0.4" \
+			    "3,10.0.0.6" \
+			    "4,10.0.0.7" \
+			    "5,10.0.0.8" \
+			    "253,10.0.0.5" \
+			    "254,10.0.0.2" \
+			    "255,10.0.0.3")" "wrap-around ids"
+
+flush_endpoint
+add_endpoint 10.0.1.1 flags subflow
+change_address 10.0.1.1 backup
+check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow backup")" \
+	"set flags (backup)"
+change_address 10.0.1.1 nobackup
+check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow")" \
+	"          (nobackup)"
 
 # fullmesh support has been added later
-ip netns exec $ns1 ./pm_nl_ctl set id 1 flags fullmesh 2>/dev/null
-if ip netns exec $ns1 ./pm_nl_ctl dump | grep -q "fullmesh" ||
+change_endpoint 1 fullmesh 2>/dev/null
+if show_endpoints | grep -q "fullmesh" ||
    mptcp_lib_expect_all_features; then
-	check "ip netns exec $ns1 ./pm_nl_ctl dump" "id 1 flags \
-subflow,fullmesh 10.0.1.1" "          (fullmesh)"
-	ip netns exec $ns1 ./pm_nl_ctl set id 1 flags nofullmesh
-	check "ip netns exec $ns1 ./pm_nl_ctl dump" "id 1 flags \
-subflow 10.0.1.1" "          (nofullmesh)"
-	ip netns exec $ns1 ./pm_nl_ctl set id 1 flags backup,fullmesh
-	check "ip netns exec $ns1 ./pm_nl_ctl dump" "id 1 flags \
-subflow,backup,fullmesh 10.0.1.1" "          (backup,fullmesh)"
+	check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow fullmesh")" \
+		"          (fullmesh)"
+	change_endpoint 1 nofullmesh
+	check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow")" \
+		"          (nofullmesh)"
+	change_endpoint 1 backup,fullmesh
+	check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow backup fullmesh")" \
+		"          (backup,fullmesh)"
 else
 	for st in fullmesh nofullmesh backup,fullmesh; do
 		st="          (${st})"
diff --git a/tools/testing/selftests/net/mptcp/simult_flows.sh b/tools/testing/selftests/net/mptcp/simult_flows.sh
index 7322e1e4e5..f74e1c3c12 100755
--- a/tools/testing/selftests/net/mptcp/simult_flows.sh
+++ b/tools/testing/selftests/net/mptcp/simult_flows.sh
@@ -27,10 +27,11 @@ capout=""
 size=0
 
 usage() {
-	echo "Usage: $0 [ -b ] [ -c ] [ -d ]"
+	echo "Usage: $0 [ -b ] [ -c ] [ -d ] [ -i]"
 	echo -e "\t-b: bail out after first error, otherwise runs al testcases"
 	echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)"
 	echo -e "\t-d: debug this script"
+	echo -e "\t-i: use 'ip mptcp' instead of 'pm_nl_ctl'"
 }
 
 # This function is used in the cleanup trap
@@ -45,7 +46,7 @@ cleanup()
 }
 
 mptcp_lib_check_mptcp
-mptcp_lib_check_tools ip
+mptcp_lib_check_tools ip tc
 
 #  "$ns1"              ns2                    ns3
 #     ns1eth1    ns2eth1   ns2eth3      ns3eth1
@@ -85,8 +86,8 @@ setup()
 	ip -net "$ns1" route add default via 10.0.2.2 metric 101
 	ip -net "$ns1" route add default via dead:beef:2::2 metric 101
 
-	ip netns exec "$ns1" ./pm_nl_ctl limits 1 1
-	ip netns exec "$ns1" ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags subflow
+	mptcp_lib_pm_nl_set_limits "${ns1}" 1 1
+	mptcp_lib_pm_nl_add_endpoint "${ns1}" 10.0.2.1 dev ns1eth2 flags subflow
 
 	ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
 	ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
@@ -108,7 +109,7 @@ setup()
 	ip -net "$ns3" route add default via 10.0.3.2
 	ip -net "$ns3" route add default via dead:beef:3::2
 
-	ip netns exec "$ns3" ./pm_nl_ctl limits 1 1
+	mptcp_lib_pm_nl_set_limits "${ns3}" 1 1
 
 	# debug build can slow down measurably the test program
 	# we use quite tight time limit on the run-time, to ensure
@@ -259,7 +260,7 @@ run_test()
 	fi
 }
 
-while getopts "bcdh" option;do
+while getopts "bcdhi" option;do
 	case "$option" in
 	"h")
 		usage $0
@@ -274,6 +275,9 @@ while getopts "bcdh" option;do
 	"d")
 		set -x
 		;;
+	"i")
+		mptcp_lib_set_ip_mptcp
+		;;
 	"?")
 		usage $0
 		exit ${KSFT_FAIL}