xref: /linux/tools/testing/selftests/net/mptcp/pm_netlink.sh (revision db87bd2ad1f736c2f7ab231f9b40c885934f6b2c) 
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4. "$(dirname "${0}")/mptcp_lib.sh"
5
6ret=0
7
8usage() {
9	echo "Usage: $0 [ -i ] [ -h ]"
10	echo -e "\t-i: use 'ip mptcp' instead of 'pm_nl_ctl'"
11	echo -e "\t-h: help"
12}
13
14optstring=hi
15while getopts "$optstring" option;do
16	case "$option" in
17	"h")
18		usage "$0"
19		exit ${KSFT_PASS}
20		;;
21	"i")
22		mptcp_lib_set_ip_mptcp
23		;;
24	"?")
25		usage "$0"
26		exit ${KSFT_FAIL}
27		;;
28	esac
29done
30
31ns1=""
32err=$(mktemp)
33
34# This function is used in the cleanup trap
35#shellcheck disable=SC2317,SC2329
36cleanup()
37{
38	rm -f "${err}"
39	mptcp_lib_ns_exit "${ns1}"
40}
41
42mptcp_lib_check_mptcp
43mptcp_lib_check_tools ip
44
45trap cleanup EXIT
46
47mptcp_lib_ns_init ns1
48
49format_limits() {
50	local accept="${1}"
51	local subflows="${2}"
52
53	if mptcp_lib_is_ip_mptcp; then
54		# with a space at the end
55		printf "add_addr_accepted %d subflows %d \n" "${accept}" "${subflows}"
56	else
57		printf "accept %d\nsubflows %d\n" "${accept}" "${subflows}"
58	fi
59}
60
61get_limits() {
62	if mptcp_lib_is_ip_mptcp; then
63		ip -n "${ns1}" mptcp limits
64	else
65		ip netns exec "${ns1}" ./pm_nl_ctl limits
66	fi
67}
68
69format_endpoints() {
70	mptcp_lib_pm_nl_format_endpoints "${@}"
71}
72
73# This function is invoked indirectly
74#shellcheck disable=SC2317,SC2329
75get_endpoint() {
76	mptcp_lib_pm_nl_get_endpoint "${ns1}" "${@}"
77}
78
79change_address() {
80	local addr=${1}
81	local flags=${2}
82
83	if mptcp_lib_is_ip_mptcp; then
84		ip -n "${ns1}" mptcp endpoint change "${addr}" "${flags}"
85	else
86		ip netns exec "${ns1}" ./pm_nl_ctl set "${addr}" flags "${flags}"
87	fi
88}
89
90set_limits()
91{
92	mptcp_lib_pm_nl_set_limits "${ns1}" "${@}"
93}
94
95add_endpoint()
96{
97	mptcp_lib_pm_nl_add_endpoint "${ns1}" "${@}"
98}
99
100del_endpoint()
101{
102	mptcp_lib_pm_nl_del_endpoint "${ns1}" "${@}"
103}
104
105flush_endpoint()
106{
107	mptcp_lib_pm_nl_flush_endpoint "${ns1}"
108}
109
110show_endpoints()
111{
112	mptcp_lib_pm_nl_show_endpoints "${ns1}"
113}
114
115change_endpoint()
116{
117	mptcp_lib_pm_nl_change_endpoint "${ns1}" "${@}"
118}
119
120check()
121{
122	local cmd="$1"
123	local expected="$2"
124	local msg="$3"
125	local rc=0
126
127	mptcp_lib_print_title "$msg"
128	mptcp_lib_check_output "${err}" "${cmd}" "${expected}" || rc=${?}
129	if [ ${rc} -eq 2 ]; then
130		mptcp_lib_result_fail "${msg} # error ${rc}"
131		ret=${KSFT_FAIL}
132	elif [ ${rc} -eq 0 ]; then
133		mptcp_lib_print_ok "[ OK ]"
134		mptcp_lib_result_pass "${msg}"
135	elif [ ${rc} -eq 1 ]; then
136		mptcp_lib_result_fail "${msg} # different output"
137		ret=${KSFT_FAIL}
138	fi
139}
140
141mptcp_lib_subtests_last_ts_reset
142
143check "show_endpoints" "" "defaults addr list"
144
145default_limits="$(get_limits)"
146if mptcp_lib_expect_all_features; then
147	check "get_limits" "$(format_limits 0 2)" "defaults limits"
148fi
149
150add_endpoint 10.0.1.1
151add_endpoint 10.0.1.2 flags subflow dev lo
152add_endpoint 10.0.1.3 flags signal,backup
153check "get_endpoint 1" "$(format_endpoints "1,10.0.1.1")" "simple add/get addr"
154
155check "show_endpoints" \
156	"$(format_endpoints "1,10.0.1.1" \
157			    "2,10.0.1.2,subflow,lo" \
158			    "3,10.0.1.3,signal backup")" "dump addrs"
159
160del_endpoint 2
161check "get_endpoint 2" "" "simple del addr"
162check "show_endpoints" \
163	"$(format_endpoints "1,10.0.1.1" \
164			    "3,10.0.1.3,signal backup")" "dump addrs after del"
165
166add_endpoint 10.0.1.3 2>/dev/null
167check "get_endpoint 4" "" "duplicate addr"
168
169add_endpoint 10.0.1.4 flags signal
170check "get_endpoint 4" "$(format_endpoints "4,10.0.1.4,signal")" "id addr increment"
171
172for i in $(seq 5 9); do
173	add_endpoint "10.0.1.${i}" flags signal >/dev/null 2>&1
174done
175check "get_endpoint 9" "$(format_endpoints "9,10.0.1.9,signal")" "hard addr limit"
176check "get_endpoint 10" "" "above hard addr limit"
177
178del_endpoint 9
179for i in $(seq 10 255); do
180	add_endpoint 10.0.0.9 id "${i}"
181	del_endpoint "${i}"
182done
183check "show_endpoints" \
184	"$(format_endpoints "1,10.0.1.1" \
185			    "3,10.0.1.3,signal backup" \
186			    "4,10.0.1.4,signal" \
187			    "5,10.0.1.5,signal" \
188			    "6,10.0.1.6,signal" \
189			    "7,10.0.1.7,signal" \
190			    "8,10.0.1.8,signal")" "id limit"
191
192flush_endpoint
193check "show_endpoints" "" "flush addrs"
194
195set_limits 9 1 2>/dev/null
196check "get_limits" "${default_limits}" "rcv addrs above hard limit"
197
198set_limits 1 9 2>/dev/null
199check "get_limits" "${default_limits}" "subflows above hard limit"
200
201set_limits 8 8
202flush_endpoint  ## to make sure it doesn't affect the limits
203check "get_limits" "$(format_limits 8 8)" "set limits"
204
205flush_endpoint
206add_endpoint 10.0.1.1
207add_endpoint 10.0.1.2
208add_endpoint 10.0.1.3 id 100
209add_endpoint 10.0.1.4
210add_endpoint 10.0.1.5 id 254
211add_endpoint 10.0.1.6
212add_endpoint 10.0.1.7
213add_endpoint 10.0.1.8
214check "show_endpoints" \
215	"$(format_endpoints "1,10.0.1.1" \
216			    "2,10.0.1.2" \
217			    "3,10.0.1.7" \
218			    "4,10.0.1.8" \
219			    "100,10.0.1.3" \
220			    "101,10.0.1.4" \
221			    "254,10.0.1.5" \
222			    "255,10.0.1.6")" "set ids"
223
224flush_endpoint
225add_endpoint 10.0.0.1
226add_endpoint 10.0.0.2 id 254
227add_endpoint 10.0.0.3
228add_endpoint 10.0.0.4
229add_endpoint 10.0.0.5 id 253
230add_endpoint 10.0.0.6
231add_endpoint 10.0.0.7
232add_endpoint 10.0.0.8
233check "show_endpoints" \
234	"$(format_endpoints "1,10.0.0.1" \
235			    "2,10.0.0.4" \
236			    "3,10.0.0.6" \
237			    "4,10.0.0.7" \
238			    "5,10.0.0.8" \
239			    "253,10.0.0.5" \
240			    "254,10.0.0.2" \
241			    "255,10.0.0.3")" "wrap-around ids"
242
243flush_endpoint
244add_endpoint 10.0.1.1 flags subflow
245change_address 10.0.1.1 backup
246check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow backup")" \
247	"set flags (backup)"
248change_address 10.0.1.1 nobackup
249check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow")" \
250	"          (nobackup)"
251
252# fullmesh support has been added later
253change_endpoint 1 fullmesh 2>/dev/null
254if show_endpoints | grep -q "fullmesh" ||
255   mptcp_lib_expect_all_features; then
256	check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow fullmesh")" \
257		"          (fullmesh)"
258	change_endpoint 1 nofullmesh
259	check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow")" \
260		"          (nofullmesh)"
261	change_endpoint 1 backup,fullmesh
262	check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow backup fullmesh")" \
263		"          (backup,fullmesh)"
264else
265	for st in fullmesh nofullmesh backup,fullmesh; do
266		st="          (${st})"
267		mptcp_lib_print_title "${st}"
268		mptcp_lib_pr_skip
269		mptcp_lib_result_skip "${st}"
270	done
271fi
272
273mptcp_lib_result_print_all_tap
274exit $ret
275