tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4# +--------------------+ +----------------------+
5# | H1 | | H2 |
6# | | | |
7# | $h1.200 + | | + $h2.200 |
8# | 192.0.2.1/28 | | | | 192.0.2.18/28 |
9# | 2001:db8:1::1/64 | | | | 2001:db8:2::1/64 |
10# | | | | | |
11# | $h1 + | | + $h2 |
12# | | | | | |
13# +------------------|-+ +-|--------------------+
14# | |
15# +------------------|-------------------------|--------------------+
16# | SW | | |
17# | | | |
18# | $rp1 + + $rp2 |
19# | | | |
20# | $rp1.200 + + $rp2.200 |
21# | 192.0.2.2/28 192.0.2.17/28 |
22# | 2001:db8:1::2/64 2001:db8:2::2/64 |
23# | |
24# +-----------------------------------------------------------------+
25
26ALL_TESTS="
27 ping_ipv4
28 ping_ipv6
29 test_stats_rx_ipv4
30 test_stats_tx_ipv4
31 test_stats_rx_ipv6
32 test_stats_tx_ipv6
33 respin_enablement
34 test_stats_rx_ipv4
35 test_stats_tx_ipv4
36 test_stats_rx_ipv6
37 test_stats_tx_ipv6
38 reapply_config
39 ping_ipv4
40 ping_ipv6
41 test_stats_rx_ipv4
42 test_stats_tx_ipv4
43 test_stats_rx_ipv6
44 test_stats_tx_ipv6
45 test_stats_report_rx
46 test_stats_report_tx
47 test_destroy_enabled
48 test_double_enable
49"
50NUM_NETIFS=4
51source lib.sh
52
53h1_create()
54{
55 simple_if_init $h1
56 vlan_create $h1 200 v$h1 192.0.2.1/28 2001:db8:1::1/64
57 ip route add 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
58 ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
59}
60
61h1_destroy()
62{
63 ip -6 route del 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
64 ip route del 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
65 vlan_destroy $h1 200
66 simple_if_fini $h1
67}
68
69h2_create()
70{
71 simple_if_init $h2
72 vlan_create $h2 200 v$h2 192.0.2.18/28 2001:db8:2::1/64
73 ip route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.17
74 ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::2
75}
76
77h2_destroy()
78{
79 ip -6 route del 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::2
80 ip route del 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.17
81 vlan_destroy $h2 200
82 simple_if_fini $h2
83}
84
85router_rp1_200_create()
86{
87 ip link add name $rp1.200 up \
88 link $rp1 addrgenmode eui64 type vlan id 200
89 ip address add dev $rp1.200 192.0.2.2/28
90 ip address add dev $rp1.200 2001:db8:1::2/64
91 ip stats set dev $rp1.200 l3_stats on
92}
93
94router_rp1_200_destroy()
95{
96 ip stats set dev $rp1.200 l3_stats off
97 ip address del dev $rp1.200 2001:db8:1::2/64
98 ip address del dev $rp1.200 192.0.2.2/28
99 ip link del dev $rp1.200
100}
101
102router_create()
103{
104 ip link set dev $rp1 up
105 router_rp1_200_create
106
107 ip link set dev $rp2 up
108 vlan_create $rp2 200 "" 192.0.2.17/28 2001:db8:2::2/64
109}
110
111router_destroy()
112{
113 vlan_destroy $rp2 200
114 ip link set dev $rp2 down
115
116 router_rp1_200_destroy
117 ip link set dev $rp1 down
118}
119
120setup_prepare()
121{
122 h1=${NETIFS[p1]}
123 rp1=${NETIFS[p2]}
124
125 rp2=${NETIFS[p3]}
126 h2=${NETIFS[p4]}
127
128 rp1mac=$(mac_get $rp1)
129 rp2mac=$(mac_get $rp2)
130
131 vrf_prepare
132
133 h1_create
134 h2_create
135
136 router_create
137
138 forwarding_enable
139}
140
141cleanup()
142{
143 pre_cleanup
144
145 forwarding_restore
146
147 router_destroy
148
149 h2_destroy
150 h1_destroy
151
152 vrf_cleanup
153}
154
155ping_ipv4()
156{
157 ping_test $h1.200 192.0.2.18 " IPv4"
158}
159
160ping_ipv6()
161{
162 ping_test $h1.200 2001:db8:2::1 " IPv6"
163}
164
165send_packets_rx_ipv4()
166{
167 # Send 21 packets instead of 20, because the first one might trap and go
168 # through the SW datapath, which might not bump the HW counter.
169 $MZ $h1.200 -c 21 -d 20msec -p 100 \
170 -a own -b $rp1mac -A 192.0.2.1 -B 192.0.2.18 \
171 -q -t udp sp=54321,dp=12345
172}
173
174send_packets_rx_ipv6()
175{
176 $MZ $h1.200 -6 -c 21 -d 20msec -p 100 \
177 -a own -b $rp1mac -A 2001:db8:1::1 -B 2001:db8:2::1 \
178 -q -t udp sp=54321,dp=12345
179}
180
181send_packets_tx_ipv4()
182{
183 $MZ $h2.200 -c 21 -d 20msec -p 100 \
184 -a own -b $rp2mac -A 192.0.2.18 -B 192.0.2.1 \
185 -q -t udp sp=54321,dp=12345
186}
187
188send_packets_tx_ipv6()
189{
190 $MZ $h2.200 -6 -c 21 -d 20msec -p 100 \
191 -a own -b $rp2mac -A 2001:db8:2::1 -B 2001:db8:1::1 \
192 -q -t udp sp=54321,dp=12345
193}
194
195___test_stats()
196{
197 local dir=$1; shift
198 local prot=$1; shift
199
200 local a
201 local b
202
203 a=$(hw_stats_get l3_stats $rp1.200 ${dir} packets)
204 send_packets_${dir}_${prot}
205 "$@"
206 b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \
207 hw_stats_get l3_stats $rp1.200 ${dir} packets)
208 check_err $? "Traffic not reflected in the counter: $a -> $b"
209}
210
211__test_stats()
212{
213 local dir=$1; shift
214 local prot=$1; shift
215
216 RET=0
217 ___test_stats "$dir" "$prot"
218 log_test "Test $dir packets: $prot"
219}
220
221test_stats_rx_ipv4()
222{
223 __test_stats rx ipv4
224}
225
226test_stats_tx_ipv4()
227{
228 __test_stats tx ipv4
229}
230
231test_stats_rx_ipv6()
232{
233 __test_stats rx ipv6
234}
235
236test_stats_tx_ipv6()
237{
238 __test_stats tx ipv6
239}
240
241# Make sure everything works well even after stats have been disabled and
242# reenabled on the same device without touching the L3 configuration.
243respin_enablement()
244{
245 log_info "Turning stats off and on again"
246 ip stats set dev $rp1.200 l3_stats off
247 ip stats set dev $rp1.200 l3_stats on
248}
249
250# For the initial run, l3_stats is enabled on a completely set up netdevice. Now
251# do it the other way around: enabling the L3 stats on an L2 netdevice, and only
252# then apply the L3 configuration.
253reapply_config()
254{
255 log_info "Reapplying configuration"
256
257 router_rp1_200_destroy
258
259 ip link add name $rp1.200 link $rp1 addrgenmode none type vlan id 200
260 ip stats set dev $rp1.200 l3_stats on
261 ip link set dev $rp1.200 up addrgenmode eui64
262 ip address add dev $rp1.200 192.0.2.2/28
263 ip address add dev $rp1.200 2001:db8:1::2/64
264}
265
266__test_stats_report()
267{
268 local dir=$1; shift
269 local prot=$1; shift
270
271 local a
272 local b
273
274 RET=0
275
276 a=$(hw_stats_get l3_stats $rp1.200 ${dir} packets)
277 send_packets_${dir}_${prot}
278 ip address flush dev $rp1.200
279 b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \
280 hw_stats_get l3_stats $rp1.200 ${dir} packets)
281 check_err $? "Traffic not reflected in the counter: $a -> $b"
282 log_test "Test ${dir} packets: stats pushed on loss of L3"
283
284 ip stats set dev $rp1.200 l3_stats off
285 ip link del dev $rp1.200
286 router_rp1_200_create
287}
288
289test_stats_report_rx()
290{
291 __test_stats_report rx ipv4
292}
293
294test_stats_report_tx()
295{
296 __test_stats_report tx ipv4
297}
298
299test_destroy_enabled()
300{
301 RET=0
302
303 ip link del dev $rp1.200
304 router_rp1_200_create
305
306 log_test "Destroy l3_stats-enabled netdev"
307}
308
309test_double_enable()
310{
311 RET=0
312 ___test_stats rx ipv4 \
313 ip stats set dev $rp1.200 l3_stats on
314 log_test "Test stat retention across a spurious enablement"
315}
316
317trap cleanup EXIT
318
319setup_prepare
320setup_wait
321
322tests_run
323
324exit $EXIT_STATUS