xref: /linux/tools/testing/selftests/net/hsr/hsr_ping.sh (revision e7d759f31ca295d589f7420719c311870bb3166f) 
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4ret=0
5ksft_skip=4
6ipv6=true
7
8optstring="h4"
9usage() {
10	echo "Usage: $0 [OPTION]"
11	echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)"
12}
13
14while getopts "$optstring" option;do
15	case "$option" in
16	"h")
17		usage $0
18		exit 0
19		;;
20	"4")
21		ipv6=false
22		;;
23	"?")
24		usage $0
25		exit 1
26		;;
27esac
28done
29
30sec=$(date +%s)
31rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
32ns1="ns1-$rndh"
33ns2="ns2-$rndh"
34ns3="ns3-$rndh"
35
36cleanup()
37{
38	local netns
39	for netns in "$ns1" "$ns2" "$ns3" ;do
40		ip netns del $netns
41	done
42}
43
44# $1: IP address
45is_v6()
46{
47	[ -z "${1##*:*}" ]
48}
49
50do_ping()
51{
52	local netns="$1"
53	local connect_addr="$2"
54	local ping_args="-q -c 2"
55
56	if is_v6 "${connect_addr}"; then
57		$ipv6 || return 0
58		ping_args="${ping_args} -6"
59	fi
60
61	ip netns exec ${netns} ping ${ping_args} $connect_addr >/dev/null
62	if [ $? -ne 0 ] ; then
63		echo "$netns -> $connect_addr connectivity [ FAIL ]" 1>&2
64		ret=1
65		return 1
66	fi
67
68	return 0
69}
70
71do_ping_long()
72{
73	local netns="$1"
74	local connect_addr="$2"
75	local ping_args="-q -c 10"
76
77	if is_v6 "${connect_addr}"; then
78		$ipv6 || return 0
79		ping_args="${ping_args} -6"
80	fi
81
82	OUT="$(LANG=C ip netns exec ${netns} ping ${ping_args} $connect_addr | grep received)"
83	if [ $? -ne 0 ] ; then
84		echo "$netns -> $connect_addr ping [ FAIL ]" 1>&2
85		ret=1
86		return 1
87	fi
88
89	VAL="$(echo $OUT | cut -d' ' -f1-8)"
90	if [ "$VAL" != "10 packets transmitted, 10 received, 0% packet loss," ]
91	then
92		echo "$netns -> $connect_addr ping TEST [ FAIL ]"
93		echo "Expect to send and receive 10 packets and no duplicates."
94		echo "Full message: ${OUT}."
95		ret=1
96		return 1
97	fi
98
99	return 0
100}
101
102stop_if_error()
103{
104	local msg="$1"
105
106	if [ ${ret} -ne 0 ]; then
107		echo "FAIL: ${msg}" 1>&2
108		exit ${ret}
109	fi
110}
111
112do_complete_ping_test()
113{
114	echo "INFO: Initial validation ping."
115	# Each node has to be able each one.
116	do_ping "$ns1" 100.64.0.2
117	do_ping "$ns2" 100.64.0.1
118	do_ping "$ns3" 100.64.0.1
119	stop_if_error "Initial validation failed."
120
121	do_ping "$ns1" 100.64.0.3
122	do_ping "$ns2" 100.64.0.3
123	do_ping "$ns3" 100.64.0.2
124
125	do_ping "$ns1" dead:beef:1::2
126	do_ping "$ns1" dead:beef:1::3
127	do_ping "$ns2" dead:beef:1::1
128	do_ping "$ns2" dead:beef:1::2
129	do_ping "$ns3" dead:beef:1::1
130	do_ping "$ns3" dead:beef:1::2
131
132	stop_if_error "Initial validation failed."
133
134# Wait until supervisor all supervision frames have been processed and the node
135# entries have been merged. Otherwise duplicate frames will be observed which is
136# valid at this stage.
137	WAIT=5
138	while [ ${WAIT} -gt 0 ]
139	do
140		grep 00:00:00:00:00:00 /sys/kernel/debug/hsr/hsr*/node_table
141		if [ $? -ne 0 ]
142		then
143			break
144		fi
145		sleep 1
146		let "WAIT = WAIT - 1"
147	done
148
149# Just a safety delay in case the above check didn't handle it.
150	sleep 1
151
152	echo "INFO: Longer ping test."
153	do_ping_long "$ns1" 100.64.0.2
154	do_ping_long "$ns1" dead:beef:1::2
155	do_ping_long "$ns1" 100.64.0.3
156	do_ping_long "$ns1" dead:beef:1::3
157
158	stop_if_error "Longer ping test failed."
159
160	do_ping_long "$ns2" 100.64.0.1
161	do_ping_long "$ns2" dead:beef:1::1
162	do_ping_long "$ns2" 100.64.0.3
163	do_ping_long "$ns2" dead:beef:1::2
164	stop_if_error "Longer ping test failed."
165
166	do_ping_long "$ns3" 100.64.0.1
167	do_ping_long "$ns3" dead:beef:1::1
168	do_ping_long "$ns3" 100.64.0.2
169	do_ping_long "$ns3" dead:beef:1::2
170	stop_if_error "Longer ping test failed."
171
172	echo "INFO: Cutting one link."
173	do_ping_long "$ns1" 100.64.0.3 &
174
175	sleep 3
176	ip -net "$ns3" link set ns3eth1 down
177	wait
178
179	ip -net "$ns3" link set ns3eth1 up
180
181	stop_if_error "Failed with one link down."
182
183	echo "INFO: Delay the link and drop a few packages."
184	tc -net "$ns3" qdisc add dev ns3eth1 root netem delay 50ms
185	tc -net "$ns2" qdisc add dev ns2eth1 root netem delay 5ms loss 25%
186
187	do_ping_long "$ns1" 100.64.0.2
188	do_ping_long "$ns1" 100.64.0.3
189
190	stop_if_error "Failed with delay and packetloss."
191
192	do_ping_long "$ns2" 100.64.0.1
193	do_ping_long "$ns2" 100.64.0.3
194
195	stop_if_error "Failed with delay and packetloss."
196
197	do_ping_long "$ns3" 100.64.0.1
198	do_ping_long "$ns3" 100.64.0.2
199	stop_if_error "Failed with delay and packetloss."
200
201	echo "INFO: All good."
202}
203
204setup_hsr_interfaces()
205{
206	local HSRv="$1"
207
208	echo "INFO: preparing interfaces for HSRv${HSRv}."
209# Three HSR nodes. Each node has one link to each of its neighbour, two links in total.
210#
211#    ns1eth1 ----- ns2eth1
212#      hsr1         hsr2
213#    ns1eth2       ns2eth2
214#       |            |
215#    ns3eth1      ns3eth2
216#           \    /
217#            hsr3
218#
219	# Interfaces
220	ip link add ns1eth1 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
221	ip link add ns1eth2 netns "$ns1" type veth peer name ns3eth1 netns "$ns3"
222	ip link add ns3eth2 netns "$ns3" type veth peer name ns2eth2 netns "$ns2"
223
224	# HSRv0/1
225	ip -net "$ns1" link add name hsr1 type hsr slave1 ns1eth1 slave2 ns1eth2 supervision 45 version $HSRv proto 0
226	ip -net "$ns2" link add name hsr2 type hsr slave1 ns2eth1 slave2 ns2eth2 supervision 45 version $HSRv proto 0
227	ip -net "$ns3" link add name hsr3 type hsr slave1 ns3eth1 slave2 ns3eth2 supervision 45 version $HSRv proto 0
228
229	# IP for HSR
230	ip -net "$ns1" addr add 100.64.0.1/24 dev hsr1
231	ip -net "$ns1" addr add dead:beef:1::1/64 dev hsr1 nodad
232	ip -net "$ns2" addr add 100.64.0.2/24 dev hsr2
233	ip -net "$ns2" addr add dead:beef:1::2/64 dev hsr2 nodad
234	ip -net "$ns3" addr add 100.64.0.3/24 dev hsr3
235	ip -net "$ns3" addr add dead:beef:1::3/64 dev hsr3 nodad
236
237	# All Links up
238	ip -net "$ns1" link set ns1eth1 up
239	ip -net "$ns1" link set ns1eth2 up
240	ip -net "$ns1" link set hsr1 up
241
242	ip -net "$ns2" link set ns2eth1 up
243	ip -net "$ns2" link set ns2eth2 up
244	ip -net "$ns2" link set hsr2 up
245
246	ip -net "$ns3" link set ns3eth1 up
247	ip -net "$ns3" link set ns3eth2 up
248	ip -net "$ns3" link set hsr3 up
249}
250
251ip -Version > /dev/null 2>&1
252if [ $? -ne 0 ];then
253	echo "SKIP: Could not run test without ip tool"
254	exit $ksft_skip
255fi
256
257trap cleanup EXIT
258
259for i in "$ns1" "$ns2" "$ns3" ;do
260	ip netns add $i || exit $ksft_skip
261	ip -net $i link set lo up
262done
263
264setup_hsr_interfaces 0
265do_complete_ping_test
266cleanup
267
268for i in "$ns1" "$ns2" "$ns3" ;do
269	ip netns add $i || exit $ksft_skip
270	ip -net $i link set lo up
271done
272
273setup_hsr_interfaces 1
274do_complete_ping_test
275
276exit $ret
277