blob: 91041c49655baee70bb81b4af326def01a90cdb1 (
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
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
|
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
##############################################################################
# Defines
# Can be overridden by the configuration file.
PING=${PING:=ping}
PING6=${PING6:=ping6}
MZ=${MZ:=mausezahn}
WAIT_TIME=${WAIT_TIME:=5}
PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
PAUSE_ON_CLEANUP=${PAUSE_ON_CLEANUP:=no}
NETIF_TYPE=${NETIF_TYPE:=veth}
NETIF_CREATE=${NETIF_CREATE:=yes}
if [[ -f forwarding.config ]]; then
source forwarding.config
fi
##############################################################################
# Sanity checks
check_tc_version()
{
tc -j &> /dev/null
if [[ $? -ne 0 ]]; then
echo "SKIP: iproute2 too old; tc is missing JSON support"
exit 1
fi
tc filter help 2>&1 | grep block &> /dev/null
if [[ $? -ne 0 ]]; then
echo "SKIP: iproute2 too old; tc is missing shared block support"
exit 1
fi
}
if [[ "$(id -u)" -ne 0 ]]; then
echo "SKIP: need root privileges"
exit 0
fi
if [[ "$CHECK_TC" = "yes" ]]; then
check_tc_version
fi
if [[ ! -x "$(command -v jq)" ]]; then
echo "SKIP: jq not installed"
exit 1
fi
if [[ ! -x "$(command -v $MZ)" ]]; then
echo "SKIP: $MZ not installed"
exit 1
fi
if [[ ! -v NUM_NETIFS ]]; then
echo "SKIP: importer does not define \"NUM_NETIFS\""
exit 1
fi
##############################################################################
# Command line options handling
count=0
while [[ $# -gt 0 ]]; do
if [[ "$count" -eq "0" ]]; then
unset NETIFS
declare -A NETIFS
fi
count=$((count + 1))
NETIFS[p$count]="$1"
shift
done
##############################################################################
# Network interfaces configuration
create_netif_veth()
{
local i
for i in $(eval echo {1..$NUM_NETIFS}); do
local j=$((i+1))
ip link show dev ${NETIFS[p$i]} &> /dev/null
if [[ $? -ne 0 ]]; then
ip link add ${NETIFS[p$i]} type veth \
peer name ${NETIFS[p$j]}
if [[ $? -ne 0 ]]; then
echo "Failed to create netif"
exit 1
fi
fi
i=$j
done
}
create_netif()
{
case "$NETIF_TYPE" in
veth) create_netif_veth
;;
*) echo "Can not create interfaces of type \'$NETIF_TYPE\'"
exit 1
;;
esac
}
if [[ "$NETIF_CREATE" = "yes" ]]; then
create_netif
fi
for i in $(eval echo {1..$NUM_NETIFS}); do
ip link show dev ${NETIFS[p$i]} &> /dev/null
if [[ $? -ne 0 ]]; then
echo "SKIP: could not find all required interfaces"
exit 1
fi
done
##############################################################################
# Helpers
# Exit status to return at the end. Set in case one of the tests fails.
EXIT_STATUS=0
# Per-test return value. Clear at the beginning of each test.
RET=0
check_err()
{
local err=$1
local msg=$2
if [[ $RET -eq 0 && $err -ne 0 ]]; then
RET=$err
retmsg=$msg
fi
}
check_fail()
{
local err=$1
local msg=$2
if [[ $RET -eq 0 && $err -eq 0 ]]; then
RET=1
retmsg=$msg
fi
}
log_test()
{
local test_name=$1
local opt_str=$2
if [[ $# -eq 2 ]]; then
opt_str="($opt_str)"
fi
if [[ $RET -ne 0 ]]; then
EXIT_STATUS=1
printf "TEST: %-60s [FAIL]\n" "$test_name $opt_str"
if [[ ! -z "$retmsg" ]]; then
printf "\t%s\n" "$retmsg"
fi
if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
echo "Hit enter to continue, 'q' to quit"
read a
[ "$a" = "q" ] && exit 1
fi
return 1
fi
printf "TEST: %-60s [PASS]\n" "$test_name $opt_str"
return 0
}
log_info()
{
local msg=$1
echo "INFO: $msg"
}
setup_wait()
{
for i in $(eval echo {1..$NUM_NETIFS}); do
while true; do
ip link show dev ${NETIFS[p$i]} up \
| grep 'state UP' &> /dev/null
if [[ $? -ne 0 ]]; then
sleep 1
else
break
fi
done
done
# Make sure links are ready.
sleep $WAIT_TIME
}
pre_cleanup()
{
if [ "${PAUSE_ON_CLEANUP}" = "yes" ]; then
echo "Pausing before cleanup, hit any key to continue"
read
fi
}
vrf_prepare()
{
ip -4 rule add pref 32765 table local
ip -4 rule del pref 0
ip -6 rule add pref 32765 table local
ip -6 rule del pref 0
}
vrf_cleanup()
{
ip -6 rule add pref 0 table local
ip -6 rule del pref 32765
ip -4 rule add pref 0 table local
ip -4 rule del pref 32765
}
__last_tb_id=0
declare -A __TB_IDS
__vrf_td_id_assign()
{
local vrf_name=$1
__last_tb_id=$((__last_tb_id + 1))
__TB_IDS[$vrf_name]=$__last_tb_id
return $__last_tb_id
}
__vrf_td_id_lookup()
{
local vrf_name=$1
return ${__TB_IDS[$vrf_name]}
}
vrf_create()
{
local vrf_name=$1
local tb_id
__vrf_td_id_assign $vrf_name
tb_id=$?
ip link add dev $vrf_name type vrf table $tb_id
ip -4 route add table $tb_id unreachable default metric 4278198272
ip -6 route add table $tb_id unreachable default metric 4278198272
}
vrf_destroy()
{
local vrf_name=$1
local tb_id
__vrf_td_id_lookup $vrf_name
tb_id=$?
ip -6 route del table $tb_id unreachable default metric 4278198272
ip -4 route del table $tb_id unreachable default metric 4278198272
ip link del dev $vrf_name
}
__addr_add_del()
{
local if_name=$1
local add_del=$2
local array
shift
shift
array=("${@}")
for addrstr in "${array[@]}"; do
ip address $add_del $addrstr dev $if_name
done
}
simple_if_init()
{
local if_name=$1
local vrf_name
local array
shift
vrf_name=v$if_name
array=("${@}")
vrf_create $vrf_name
ip link set dev $if_name master $vrf_name
ip link set dev $vrf_name up
ip link set dev $if_name up
__addr_add_del $if_name add "${array[@]}"
}
simple_if_fini()
{
local if_name=$1
local vrf_name
local array
shift
vrf_name=v$if_name
array=("${@}")
__addr_add_del $if_name del "${array[@]}"
ip link set dev $if_name down
vrf_destroy $vrf_name
}
tunnel_create()
{
local name=$1; shift
local type=$1; shift
local local=$1; shift
local remote=$1; shift
ip link add name $name type $type \
local $local remote $remote "$@"
ip link set dev $name up
}
tunnel_destroy()
{
local name=$1; shift
ip link del dev $name
}
master_name_get()
{
local if_name=$1
ip -j link show dev $if_name | jq -r '.[]["master"]'
}
link_stats_tx_packets_get()
{
local if_name=$1
ip -j -s link show dev $if_name | jq '.[]["stats64"]["tx"]["packets"]'
}
tc_rule_stats_get()
{
local dev=$1; shift
local pref=$1; shift
tc -j -s filter show dev $dev ingress pref $pref |
jq '.[1].options.actions[].stats.packets'
}
mac_get()
{
local if_name=$1
ip -j link show dev $if_name | jq -r '.[]["address"]'
}
bridge_ageing_time_get()
{
local bridge=$1
local ageing_time
# Need to divide by 100 to convert to seconds.
ageing_time=$(ip -j -d link show dev $bridge \
| jq '.[]["linkinfo"]["info_data"]["ageing_time"]')
echo $((ageing_time / 100))
}
declare -A SYSCTL_ORIG
sysctl_set()
{
local key=$1; shift
local value=$1; shift
SYSCTL_ORIG[$key]=$(sysctl -n $key)
sysctl -qw $key=$value
}
sysctl_restore()
{
local key=$1; shift
sysctl -qw $key=${SYSCTL_ORIG["$key"]}
}
forwarding_enable()
{
sysctl_set net.ipv4.conf.all.forwarding 1
sysctl_set net.ipv6.conf.all.forwarding 1
}
forwarding_restore()
{
sysctl_restore net.ipv6.conf.all.forwarding
sysctl_restore net.ipv4.conf.all.forwarding
}
tc_offload_check()
{
for i in $(eval echo {1..$NUM_NETIFS}); do
ethtool -k ${NETIFS[p$i]} \
| grep "hw-tc-offload: on" &> /dev/null
if [[ $? -ne 0 ]]; then
return 1
fi
done
return 0
}
slow_path_trap_install()
{
local dev=$1; shift
local direction=$1; shift
if [ "${tcflags/skip_hw}" != "$tcflags" ]; then
# For slow-path testing, we need to install a trap to get to
# slow path the packets that would otherwise be switched in HW.
tc filter add dev $dev $direction pref 1 \
flower skip_sw action trap
fi
}
slow_path_trap_uninstall()
{
local dev=$1; shift
local direction=$1; shift
if [ "${tcflags/skip_hw}" != "$tcflags" ]; then
tc filter del dev $dev $direction pref 1 flower skip_sw
fi
}
__icmp_capture_add_del()
{
local add_del=$1; shift
local pref=$1; shift
local vsuf=$1; shift
local tundev=$1; shift
local filter=$1; shift
tc filter $add_del dev "$tundev" ingress \
proto ip$vsuf pref $pref \
flower ip_proto icmp$vsuf $filter \
action pass
}
icmp_capture_install()
{
__icmp_capture_add_del add 100 "" "$@"
}
icmp_capture_uninstall()
{
__icmp_capture_add_del del 100 "" "$@"
}
icmp6_capture_install()
{
__icmp_capture_add_del add 100 v6 "$@"
}
icmp6_capture_uninstall()
{
__icmp_capture_add_del del 100 v6 "$@"
}
matchall_sink_create()
{
local dev=$1; shift
tc qdisc add dev $dev clsact
tc filter add dev $dev ingress \
pref 10000 \
matchall \
action drop
}
tests_run()
{
local current_test
for current_test in ${TESTS:-$ALL_TESTS}; do
$current_test
done
}
##############################################################################
# Tests
ping_test()
{
local if_name=$1
local dip=$2
local vrf_name
RET=0
vrf_name=$(master_name_get $if_name)
ip vrf exec $vrf_name $PING $dip -c 10 -i 0.1 -w 2 &> /dev/null
check_err $?
log_test "ping"
}
ping6_test()
{
local if_name=$1
local dip=$2
local vrf_name
RET=0
vrf_name=$(master_name_get $if_name)
ip vrf exec $vrf_name $PING6 $dip -c 10 -i 0.1 -w 2 &> /dev/null
check_err $?
log_test "ping6"
}
learning_test()
{
local bridge=$1
local br_port1=$2 # Connected to `host1_if`.
local host1_if=$3
local host2_if=$4
local mac=de:ad:be:ef:13:37
local ageing_time
RET=0
bridge -j fdb show br $bridge brport $br_port1 \
| jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null
check_fail $? "Found FDB record when should not"
# Disable unknown unicast flooding on `br_port1` to make sure
# packets are only forwarded through the port after a matching
# FDB entry was installed.
bridge link set dev $br_port1 flood off
tc qdisc add dev $host1_if ingress
tc filter add dev $host1_if ingress protocol ip pref 1 handle 101 \
flower dst_mac $mac action drop
$MZ $host2_if -c 1 -p 64 -b $mac -t ip -q
sleep 1
tc -j -s filter show dev $host1_if ingress \
| jq -e ".[] | select(.options.handle == 101) \
| select(.options.actions[0].stats.packets == 1)" &> /dev/null
check_fail $? "Packet reached second host when should not"
$MZ $host1_if -c 1 -p 64 -a $mac -t ip -q
sleep 1
bridge -j fdb show br $bridge brport $br_port1 \
| jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null
check_err $? "Did not find FDB record when should"
$MZ $host2_if -c 1 -p 64 -b $mac -t ip -q
sleep 1
tc -j -s filter show dev $host1_if ingress \
| jq -e ".[] | select(.options.handle == 101) \
| select(.options.actions[0].stats.packets == 1)" &> /dev/null
check_err $? "Packet did not reach second host when should"
# Wait for 10 seconds after the ageing time to make sure FDB
# record was aged-out.
ageing_time=$(bridge_ageing_time_get $bridge)
sleep $((ageing_time + 10))
bridge -j fdb show br $bridge brport $br_port1 \
| jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null
check_fail $? "Found FDB record when should not"
bridge link set dev $br_port1 learning off
$MZ $host1_if -c 1 -p 64 -a $mac -t ip -q
sleep 1
bridge -j fdb show br $bridge brport $br_port1 \
| jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null
check_fail $? "Found FDB record when should not"
bridge link set dev $br_port1 learning on
tc filter del dev $host1_if ingress protocol ip pref 1 handle 101 flower
tc qdisc del dev $host1_if ingress
bridge link set dev $br_port1 flood on
log_test "FDB learning"
}
flood_test_do()
{
local should_flood=$1
local mac=$2
local ip=$3
local host1_if=$4
local host2_if=$5
local err=0
# Add an ACL on `host2_if` which will tell us whether the packet
# was flooded to it or not.
tc qdisc add dev $host2_if ingress
tc filter add dev $host2_if ingress protocol ip pref 1 handle 101 \
flower dst_mac $mac action drop
$MZ $host1_if -c 1 -p 64 -b $mac -B $ip -t ip -q
sleep 1
tc -j -s filter show dev $host2_if ingress \
| jq -e ".[] | select(.options.handle == 101) \
| select(.options.actions[0].stats.packets == 1)" &> /dev/null
if [[ $? -ne 0 && $should_flood == "true" || \
$? -eq 0 && $should_flood == "false" ]]; then
err=1
fi
tc filter del dev $host2_if ingress protocol ip pref 1 handle 101 flower
tc qdisc del dev $host2_if ingress
return $err
}
flood_unicast_test()
{
local br_port=$1
local host1_if=$2
local host2_if=$3
local mac=de:ad:be:ef:13:37
local ip=192.0.2.100
RET=0
bridge link set dev $br_port flood off
flood_test_do false $mac $ip $host1_if $host2_if
check_err $? "Packet flooded when should not"
bridge link set dev $br_port flood on
flood_test_do true $mac $ip $host1_if $host2_if
check_err $? "Packet was not flooded when should"
log_test "Unknown unicast flood"
}
flood_multicast_test()
{
local br_port=$1
local host1_if=$2
local host2_if=$3
local mac=01:00:5e:00:00:01
local ip=239.0.0.1
RET=0
bridge link set dev $br_port mcast_flood off
flood_test_do false $mac $ip $host1_if $host2_if
check_err $? "Packet flooded when should not"
bridge link set dev $br_port mcast_flood on
flood_test_do true $mac $ip $host1_if $host2_if
check_err $? "Packet was not flooded when should"
log_test "Unregistered multicast flood"
}
flood_test()
{
# `br_port` is connected to `host2_if`
local br_port=$1
local host1_if=$2
local host2_if=$3
flood_unicast_test $br_port $host1_if $host2_if
flood_multicast_test $br_port $host1_if $host2_if
}
|