xref: /linux/tools/testing/selftests/net/forwarding/local_termination.sh (revision 195a56986c50599e5d10a558c12f74266fd51bab) 
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4ALL_TESTS="standalone bridge"
5NUM_NETIFS=2
6PING_COUNT=1
7REQUIRE_MTOOLS=yes
8REQUIRE_MZ=no
9
10source lib.sh
11
12H1_IPV4="192.0.2.1"
13H2_IPV4="192.0.2.2"
14H1_IPV6="2001:db8:1::1"
15H2_IPV6="2001:db8:1::2"
16
17BRIDGE_ADDR="00:00:de:ad:be:ee"
18MACVLAN_ADDR="00:00:de:ad:be:ef"
19UNKNOWN_UC_ADDR1="de:ad:be:ef:ee:03"
20UNKNOWN_UC_ADDR2="de:ad:be:ef:ee:04"
21UNKNOWN_UC_ADDR3="de:ad:be:ef:ee:05"
22JOINED_IPV4_MC_ADDR="225.1.2.3"
23UNKNOWN_IPV4_MC_ADDR1="225.1.2.4"
24UNKNOWN_IPV4_MC_ADDR2="225.1.2.5"
25UNKNOWN_IPV4_MC_ADDR3="225.1.2.6"
26JOINED_IPV6_MC_ADDR="ff2e::0102:0304"
27UNKNOWN_IPV6_MC_ADDR1="ff2e::0102:0305"
28UNKNOWN_IPV6_MC_ADDR2="ff2e::0102:0306"
29UNKNOWN_IPV6_MC_ADDR3="ff2e::0102:0307"
30
31JOINED_MACV4_MC_ADDR="01:00:5e:01:02:03"
32UNKNOWN_MACV4_MC_ADDR1="01:00:5e:01:02:04"
33UNKNOWN_MACV4_MC_ADDR2="01:00:5e:01:02:05"
34UNKNOWN_MACV4_MC_ADDR3="01:00:5e:01:02:06"
35JOINED_MACV6_MC_ADDR="33:33:01:02:03:04"
36UNKNOWN_MACV6_MC_ADDR1="33:33:01:02:03:05"
37UNKNOWN_MACV6_MC_ADDR2="33:33:01:02:03:06"
38UNKNOWN_MACV6_MC_ADDR3="33:33:01:02:03:07"
39
40NON_IP_MC="01:02:03:04:05:06"
41NON_IP_PKT="00:04 48:45:4c:4f"
42BC="ff:ff:ff:ff:ff:ff"
43
44# Disable promisc to ensure we don't receive unknown MAC DA packets
45export TCPDUMP_EXTRA_FLAGS="-pl"
46
47h1=${NETIFS[p1]}
48h2=${NETIFS[p2]}
49
50send_non_ip()
51{
52	local if_name=$1
53	local smac=$2
54	local dmac=$3
55
56	$MZ -q $if_name "$dmac $smac $NON_IP_PKT"
57}
58
59send_uc_ipv4()
60{
61	local if_name=$1
62	local dmac=$2
63
64	ip neigh add $H2_IPV4 lladdr $dmac dev $if_name
65	ping_do $if_name $H2_IPV4
66	ip neigh del $H2_IPV4 dev $if_name
67}
68
69check_rcv()
70{
71	local if_name=$1
72	local type=$2
73	local pattern=$3
74	local should_receive=$4
75	local should_fail=
76
77	[ $should_receive = true ] && should_fail=0 || should_fail=1
78	RET=0
79
80	tcpdump_show $if_name | grep -q "$pattern"
81
82	check_err_fail "$should_fail" "$?" "reception"
83
84	log_test "$if_name: $type"
85}
86
87mc_route_prepare()
88{
89	local if_name=$1
90	local vrf_name=$(master_name_get $if_name)
91
92	ip route add 225.100.1.0/24 dev $if_name vrf $vrf_name
93	ip -6 route add ff2e::/64 dev $if_name vrf $vrf_name
94}
95
96mc_route_destroy()
97{
98	local if_name=$1
99	local vrf_name=$(master_name_get $if_name)
100
101	ip route del 225.100.1.0/24 dev $if_name vrf $vrf_name
102	ip -6 route del ff2e::/64 dev $if_name vrf $vrf_name
103}
104
105run_test()
106{
107	local rcv_if_name=$1
108	local smac=$(mac_get $h1)
109	local rcv_dmac=$(mac_get $rcv_if_name)
110
111	tcpdump_start $rcv_if_name
112
113	mc_route_prepare $h1
114	mc_route_prepare $rcv_if_name
115
116	send_uc_ipv4 $h1 $rcv_dmac
117	send_uc_ipv4 $h1 $MACVLAN_ADDR
118	send_uc_ipv4 $h1 $UNKNOWN_UC_ADDR1
119
120	ip link set dev $rcv_if_name promisc on
121	send_uc_ipv4 $h1 $UNKNOWN_UC_ADDR2
122	mc_send $h1 $UNKNOWN_IPV4_MC_ADDR2
123	mc_send $h1 $UNKNOWN_IPV6_MC_ADDR2
124	ip link set dev $rcv_if_name promisc off
125
126	mc_join $rcv_if_name $JOINED_IPV4_MC_ADDR
127	mc_send $h1 $JOINED_IPV4_MC_ADDR
128	mc_leave
129
130	mc_join $rcv_if_name $JOINED_IPV6_MC_ADDR
131	mc_send $h1 $JOINED_IPV6_MC_ADDR
132	mc_leave
133
134	mc_send $h1 $UNKNOWN_IPV4_MC_ADDR1
135	mc_send $h1 $UNKNOWN_IPV6_MC_ADDR1
136
137	ip link set dev $rcv_if_name allmulticast on
138	send_uc_ipv4 $h1 $UNKNOWN_UC_ADDR3
139	mc_send $h1 $UNKNOWN_IPV4_MC_ADDR3
140	mc_send $h1 $UNKNOWN_IPV6_MC_ADDR3
141	ip link set dev $rcv_if_name allmulticast off
142
143	mc_route_destroy $rcv_if_name
144	mc_route_destroy $h1
145
146	sleep 1
147
148	tcpdump_stop $rcv_if_name
149
150	check_rcv $rcv_if_name "Unicast IPv4 to primary MAC address" \
151		"$smac > $rcv_dmac, ethertype IPv4 (0x0800)" \
152		true
153
154	check_rcv $rcv_if_name "Unicast IPv4 to macvlan MAC address" \
155		"$smac > $MACVLAN_ADDR, ethertype IPv4 (0x0800)" \
156		true
157
158	xfail_on_veth $h1 \
159		check_rcv $rcv_if_name "Unicast IPv4 to unknown MAC address" \
160			"$smac > $UNKNOWN_UC_ADDR1, ethertype IPv4 (0x0800)" \
161			false
162
163	check_rcv $rcv_if_name "Unicast IPv4 to unknown MAC address, promisc" \
164		"$smac > $UNKNOWN_UC_ADDR2, ethertype IPv4 (0x0800)" \
165		true
166
167	xfail_on_veth $h1 \
168		check_rcv $rcv_if_name \
169			"Unicast IPv4 to unknown MAC address, allmulti" \
170			"$smac > $UNKNOWN_UC_ADDR3, ethertype IPv4 (0x0800)" \
171			false
172
173	check_rcv $rcv_if_name "Multicast IPv4 to joined group" \
174		"$smac > $JOINED_MACV4_MC_ADDR, ethertype IPv4 (0x0800)" \
175		true
176
177	xfail_on_veth $h1 \
178		check_rcv $rcv_if_name \
179			"Multicast IPv4 to unknown group" \
180			"$smac > $UNKNOWN_MACV4_MC_ADDR1, ethertype IPv4 (0x0800)" \
181			false
182
183	check_rcv $rcv_if_name "Multicast IPv4 to unknown group, promisc" \
184		"$smac > $UNKNOWN_MACV4_MC_ADDR2, ethertype IPv4 (0x0800)" \
185		true
186
187	check_rcv $rcv_if_name "Multicast IPv4 to unknown group, allmulti" \
188		"$smac > $UNKNOWN_MACV4_MC_ADDR3, ethertype IPv4 (0x0800)" \
189		true
190
191	check_rcv $rcv_if_name "Multicast IPv6 to joined group" \
192		"$smac > $JOINED_MACV6_MC_ADDR, ethertype IPv6 (0x86dd)" \
193		true
194
195	xfail_on_veth $h1 \
196		check_rcv $rcv_if_name "Multicast IPv6 to unknown group" \
197			"$smac > $UNKNOWN_MACV6_MC_ADDR1, ethertype IPv6 (0x86dd)" \
198			false
199
200	check_rcv $rcv_if_name "Multicast IPv6 to unknown group, promisc" \
201		"$smac > $UNKNOWN_MACV6_MC_ADDR2, ethertype IPv6 (0x86dd)" \
202		true
203
204	check_rcv $rcv_if_name "Multicast IPv6 to unknown group, allmulti" \
205		"$smac > $UNKNOWN_MACV6_MC_ADDR3, ethertype IPv6 (0x86dd)" \
206		true
207
208	tcpdump_cleanup $rcv_if_name
209}
210
211h1_create()
212{
213	simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
214}
215
216h1_destroy()
217{
218	simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
219}
220
221h2_create()
222{
223	simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
224}
225
226h2_destroy()
227{
228	simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
229}
230
231bridge_create()
232{
233	ip link add br0 type bridge
234	ip link set br0 address $BRIDGE_ADDR
235	ip link set br0 up
236
237	ip link set $h2 master br0
238	ip link set $h2 up
239
240	simple_if_init br0 $H2_IPV4/24 $H2_IPV6/64
241}
242
243bridge_destroy()
244{
245	simple_if_fini br0 $H2_IPV4/24 $H2_IPV6/64
246
247	ip link del br0
248}
249
250standalone()
251{
252	h1_create
253	h2_create
254
255	ip link add link $h2 name macvlan0 type macvlan mode private
256	ip link set macvlan0 address $MACVLAN_ADDR
257	ip link set macvlan0 up
258
259	run_test $h2
260
261	ip link del macvlan0
262
263	h2_destroy
264	h1_destroy
265}
266
267bridge()
268{
269	h1_create
270	bridge_create
271
272	ip link add link br0 name macvlan0 type macvlan mode private
273	ip link set macvlan0 address $MACVLAN_ADDR
274	ip link set macvlan0 up
275
276	run_test br0
277
278	ip link del macvlan0
279
280	bridge_destroy
281	h1_destroy
282}
283
284cleanup()
285{
286	pre_cleanup
287	vrf_cleanup
288}
289
290setup_prepare()
291{
292	vrf_prepare
293	# setup_wait() needs this
294	ip link set $h1 up
295	ip link set $h2 up
296}
297
298trap cleanup EXIT
299
300setup_prepare
301setup_wait
302
303tests_run
304
305exit $EXIT_STATUS
306