summaryrefslogtreecommitdiff
path: root/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh
blob: 10e0f3dbc930dafcab44c8c271451b7f3404a02c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Test devlink-trap tunnel drops and exceptions functionality over mlxsw.
# Check all traps to make sure they are triggered under the right
# conditions.

# +--------------------+
# | H1 (vrf)           |
# |    + $h1           |
# |    | 192.0.2.1/28  |
# +----|---------------+
#      |
# +----|----------------------------------------------------------------------+
# | SW |                                                                      |
# | +--|--------------------------------------------------------------------+ |
# | |  + $swp1                   BR1 (802.1d)                               | |
# | |                                                                       | |
# | |  + vx1 (vxlan)                                                        | |
# | |    local 192.0.2.17                                                   | |
# | |    id 1000 dstport $VXPORT                                            | |
# | +-----------------------------------------------------------------------+ |
# |                                                                           |
# |    + $rp1                                                                 |
# |    | 192.0.2.17/28                                                        |
# +----|----------------------------------------------------------------------+
#      |
# +----|--------------------------------------------------------+
# |    |                                             VRF2       |
# |    + $rp2                                                   |
# |      192.0.2.18/28                                          |
# |                                                             |
# +-------------------------------------------------------------+

lib_dir=$(dirname $0)/../../../net/forwarding

ALL_TESTS="
	decap_error_test
	overlay_smac_is_mc_test
"

NUM_NETIFS=4
source $lib_dir/lib.sh
source $lib_dir/tc_common.sh
source $lib_dir/devlink_lib.sh

: ${VXPORT:=4789}
export VXPORT

h1_create()
{
	simple_if_init $h1 192.0.2.1/28
}

h1_destroy()
{
	simple_if_fini $h1 192.0.2.1/28
}

switch_create()
{
	ip link add name br1 type bridge vlan_filtering 0 mcast_snooping 0
	# Make sure the bridge uses the MAC address of the local port and not
	# that of the VxLAN's device.
	ip link set dev br1 address $(mac_get $swp1)
	ip link set dev br1 up

	tc qdisc add dev $swp1 clsact
	ip link set dev $swp1 master br1
	ip link set dev $swp1 up

	ip link add name vx1 type vxlan id 1000 local 192.0.2.17 \
		dstport "$VXPORT" nolearning noudpcsum tos inherit ttl 100
	ip link set dev vx1 master br1
	ip link set dev vx1 up

	ip address add dev $rp1 192.0.2.17/28
	ip link set dev $rp1 up
}

switch_destroy()
{
	ip link set dev $rp1 down
	ip address del dev $rp1 192.0.2.17/28

	ip link set dev vx1 down
	ip link set dev vx1 nomaster
	ip link del dev vx1

	ip link set dev $swp1 down
	ip link set dev $swp1 nomaster
	tc qdisc del dev $swp1 clsact

	ip link set dev br1 down
	ip link del dev br1
}

vrf2_create()
{
	simple_if_init $rp2 192.0.2.18/28
}

vrf2_destroy()
{
	simple_if_fini $rp2 192.0.2.18/28
}

setup_prepare()
{
	h1=${NETIFS[p1]}
	swp1=${NETIFS[p2]}

	rp1=${NETIFS[p3]}
	rp2=${NETIFS[p4]}

	vrf_prepare
	forwarding_enable
	h1_create
	switch_create
	vrf2_create
}

cleanup()
{
	pre_cleanup

	vrf2_destroy
	switch_destroy
	h1_destroy
	forwarding_restore
	vrf_cleanup
}

ecn_payload_get()
{
	dest_mac=$(mac_get $h1)
	p=$(:
		)"08:"$(                      : VXLAN flags
		)"00:00:00:"$(                : VXLAN reserved
		)"00:03:e8:"$(                : VXLAN VNI : 1000
		)"00:"$(                      : VXLAN reserved
		)"$dest_mac:"$(               : ETH daddr
		)"00:00:00:00:00:00:"$(       : ETH saddr
		)"08:00:"$(                   : ETH type
		)"45:"$(                      : IP version + IHL
		)"00:"$(                      : IP TOS
		)"00:14:"$(                   : IP total length
		)"00:00:"$(                   : IP identification
		)"20:00:"$(                   : IP flags + frag off
		)"40:"$(                      : IP TTL
		)"00:"$(                      : IP proto
		)"D6:E5:"$(                   : IP header csum
		)"c0:00:02:03:"$(             : IP saddr: 192.0.2.3
		)"c0:00:02:01:"$(             : IP daddr: 192.0.2.1
		)
	echo $p
}

ecn_decap_test()
{
	local trap_name="decap_error"
	local desc=$1; shift
	local ecn_desc=$1; shift
	local outer_tos=$1; shift
	local mz_pid

	RET=0

	tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
		flower src_ip 192.0.2.3 dst_ip 192.0.2.1 action pass

	rp1_mac=$(mac_get $rp1)
	payload=$(ecn_payload_get)

	ip vrf exec v$rp2 $MZ $rp2 -c 0 -d 1msec -b $rp1_mac -B 192.0.2.17 \
		-t udp sp=12345,dp=$VXPORT,tos=$outer_tos,p=$payload -q &
	mz_pid=$!

	devlink_trap_exception_test $trap_name

	tc_check_packets "dev $swp1 egress" 101 0
	check_err $? "Packets were not dropped"

	log_test "$desc: Inner ECN is not ECT and outer is $ecn_desc"

	kill $mz_pid && wait $mz_pid &> /dev/null
	tc filter del dev $swp1 egress protocol ip pref 1 handle 101 flower
}

reserved_bits_payload_get()
{
	dest_mac=$(mac_get $h1)
	p=$(:
		)"08:"$(                      : VXLAN flags
		)"01:00:00:"$(                : VXLAN reserved
		)"00:03:e8:"$(                : VXLAN VNI : 1000
		)"00:"$(                      : VXLAN reserved
		)"$dest_mac:"$(               : ETH daddr
		)"00:00:00:00:00:00:"$(       : ETH saddr
		)"08:00:"$(                   : ETH type
		)"45:"$(                      : IP version + IHL
		)"00:"$(                      : IP TOS
		)"00:14:"$(                   : IP total length
		)"00:00:"$(                   : IP identification
		)"20:00:"$(                   : IP flags + frag off
		)"40:"$(                      : IP TTL
		)"00:"$(                      : IP proto
		)"00:00:"$(                   : IP header csum
		)"c0:00:02:03:"$(             : IP saddr: 192.0.2.3
		)"c0:00:02:01:"$(             : IP daddr: 192.0.2.1
		)
	echo $p
}

short_payload_get()
{
        dest_mac=$(mac_get $h1)
        p=$(:
		)"08:"$(                      : VXLAN flags
		)"01:00:00:"$(                : VXLAN reserved
		)"00:03:e8:"$(                : VXLAN VNI : 1000
		)"00:"$(                      : VXLAN reserved
		)
        echo $p
}

corrupted_packet_test()
{
	local trap_name="decap_error"
	local desc=$1; shift
	local payload_get=$1; shift
	local mz_pid

	RET=0

	# In case of too short packet, there is no any inner packet,
	# so the matching will always succeed
	tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
		flower skip_hw src_ip 192.0.2.3 dst_ip 192.0.2.1 action pass

	rp1_mac=$(mac_get $rp1)
	payload=$($payload_get)
	ip vrf exec v$rp2 $MZ $rp2 -c 0 -d 1msec -b $rp1_mac \
		-B 192.0.2.17 -t udp sp=12345,dp=$VXPORT,p=$payload -q &
	mz_pid=$!

	devlink_trap_exception_test $trap_name

	tc_check_packets "dev $swp1 egress" 101 0
	check_err $? "Packets were not dropped"

	log_test "$desc"

	kill $mz_pid && wait $mz_pid &> /dev/null
	tc filter del dev $swp1 egress protocol ip pref 1 handle 101 flower
}

decap_error_test()
{
	ecn_decap_test "Decap error" "ECT(1)" 01
	ecn_decap_test "Decap error" "ECT(0)" 02
	ecn_decap_test "Decap error" "CE" 03

	corrupted_packet_test "Decap error: Reserved bits in use" \
		"reserved_bits_payload_get"
	corrupted_packet_test "Decap error: No L2 header" "short_payload_get"
}

mc_smac_payload_get()
{
	dest_mac=$(mac_get $h1)
	source_mac=01:02:03:04:05:06
	p=$(:
		)"08:"$(                      : VXLAN flags
		)"00:00:00:"$(                : VXLAN reserved
		)"00:03:e8:"$(                : VXLAN VNI : 1000
		)"00:"$(                      : VXLAN reserved
		)"$dest_mac:"$(               : ETH daddr
		)"$source_mac:"$(             : ETH saddr
		)"08:00:"$(                   : ETH type
		)"45:"$(                      : IP version + IHL
		)"00:"$(                      : IP TOS
		)"00:14:"$(                   : IP total length
		)"00:00:"$(                   : IP identification
		)"20:00:"$(                   : IP flags + frag off
		)"40:"$(                      : IP TTL
		)"00:"$(                      : IP proto
		)"00:00:"$(                   : IP header csum
		)"c0:00:02:03:"$(             : IP saddr: 192.0.2.3
		)"c0:00:02:01:"$(             : IP daddr: 192.0.2.1
		)
	echo $p
}

overlay_smac_is_mc_test()
{
	local trap_name="overlay_smac_is_mc"
	local mz_pid

	RET=0

	# The matching will be checked on devlink_trap_drop_test()
	# and the filter will be removed on devlink_trap_drop_cleanup()
	tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
		flower src_mac 01:02:03:04:05:06 action pass

	rp1_mac=$(mac_get $rp1)
	payload=$(mc_smac_payload_get)

	ip vrf exec v$rp2 $MZ $rp2 -c 0 -d 1msec -b $rp1_mac \
		-B 192.0.2.17 -t udp sp=12345,dp=$VXPORT,p=$payload -q &
	mz_pid=$!

	devlink_trap_drop_test $trap_name $swp1 101

	log_test "Overlay source MAC is multicast"

	devlink_trap_drop_cleanup $mz_pid $swp1 "ip" 1 101
}

trap cleanup EXIT

setup_prepare
setup_wait
tests_run

exit $EXIT_STATUS