summaryrefslogtreecommitdiffstats
path: root/tools/testing/selftests/net/forwarding/lib.sh
blob: 06027772cf79af116ef8ffd2624c62f2cd6e4a09 (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
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0

##############################################################################
# Defines

# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4

# Can be overridden by the configuration file.
PING=${PING:=ping}
PING6=${PING6:=ping6}
MZ=${MZ:=mausezahn}
ARPING=${ARPING:=arping}
TEAMD=${TEAMD:=teamd}
WAIT_TIME=${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}
MCD=${MCD:=smcrouted}
MC_CLI=${MC_CLI:=smcroutectl}
PING_COUNT=${PING_COUNT:=10}
PING_TIMEOUT=${PING_TIMEOUT:=5}
WAIT_TIMEOUT=${WAIT_TIMEOUT:=20}
INTERFACE_TIMEOUT=${INTERFACE_TIMEOUT:=600}
LOW_AGEING_TIME=${LOW_AGEING_TIME:=1000}
REQUIRE_JQ=${REQUIRE_JQ:=yes}
REQUIRE_MZ=${REQUIRE_MZ:=yes}
REQUIRE_MTOOLS=${REQUIRE_MTOOLS:=no}
STABLE_MAC_ADDRS=${STABLE_MAC_ADDRS:=no}
TCPDUMP_EXTRA_FLAGS=${TCPDUMP_EXTRA_FLAGS:=}
TROUTE6=${TROUTE6:=traceroute6}

relative_path="${BASH_SOURCE%/*}"
if [[ "$relative_path" == "${BASH_SOURCE}" ]]; then
	relative_path="."
fi

if [[ -f $relative_path/forwarding.config ]]; then
	source "$relative_path/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 $ksft_skip
	fi
}

# Old versions of tc don't understand "mpls_uc"
check_tc_mpls_support()
{
	local dev=$1; shift

	tc filter add dev $dev ingress protocol mpls_uc pref 1 handle 1 \
		matchall action pipe &> /dev/null
	if [[ $? -ne 0 ]]; then
		echo "SKIP: iproute2 too old; tc is missing MPLS support"
		return $ksft_skip
	fi
	tc filter del dev $dev ingress protocol mpls_uc pref 1 handle 1 \
		matchall
}

# Old versions of tc produce invalid json output for mpls lse statistics
check_tc_mpls_lse_stats()
{
	local dev=$1; shift
	local ret;

	tc filter add dev $dev ingress protocol mpls_uc pref 1 handle 1 \
		flower mpls lse depth 2                                 \
		action continue &> /dev/null

	if [[ $? -ne 0 ]]; then
		echo "SKIP: iproute2 too old; tc-flower is missing extended MPLS support"
		return $ksft_skip
	fi

	tc -j filter show dev $dev ingress protocol mpls_uc | jq . &> /dev/null
	ret=$?
	tc filter del dev $dev ingress protocol mpls_uc pref 1 handle 1 \
		flower

	if [[ $ret -ne 0 ]]; then
		echo "SKIP: iproute2 too old; tc-flower produces invalid json output for extended MPLS filters"
		return $ksft_skip
	fi
}

check_tc_shblock_support()
{
	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 $ksft_skip
	fi
}

check_tc_chain_support()
{
	tc help 2>&1|grep chain &> /dev/null
	if [[ $? -ne 0 ]]; then
		echo "SKIP: iproute2 too old; tc is missing chain support"
		exit $ksft_skip
	fi
}

check_tc_action_hw_stats_support()
{
	tc actions help 2>&1 | grep -q hw_stats
	if [[ $? -ne 0 ]]; then
		echo "SKIP: iproute2 too old; tc is missing action hw_stats support"
		exit $ksft_skip
	fi
}

check_ethtool_lanes_support()
{
	ethtool --help 2>&1| grep lanes &> /dev/null
	if [[ $? -ne 0 ]]; then
		echo "SKIP: ethtool too old; it is missing lanes support"
		exit $ksft_skip
	fi
}

check_locked_port_support()
{
	if ! bridge -d link show | grep -q " locked"; then
		echo "SKIP: iproute2 too old; Locked port feature not supported."
		return $ksft_skip
	fi
}

skip_on_veth()
{
	local kind=$(ip -j -d link show dev ${NETIFS[p1]} |
		jq -r '.[].linkinfo.info_kind')

	if [[ $kind == veth ]]; then
		echo "SKIP: Test cannot be run with veth pairs"
		exit $ksft_skip
	fi
}

if [[ "$(id -u)" -ne 0 ]]; then
	echo "SKIP: need root privileges"
	exit $ksft_skip
fi

if [[ "$CHECK_TC" = "yes" ]]; then
	check_tc_version
fi

require_command()
{
	local cmd=$1; shift

	if [[ ! -x "$(command -v "$cmd")" ]]; then
		echo "SKIP: $cmd not installed"
		exit $ksft_skip
	fi
}

if [[ "$REQUIRE_JQ" = "yes" ]]; then
	require_command jq
fi
if [[ "$REQUIRE_MZ" = "yes" ]]; then
	require_command $MZ
fi
if [[ "$REQUIRE_MTOOLS" = "yes" ]]; then
	# https://github.com/vladimiroltean/mtools/
	# patched for IPv6 support
	require_command msend
	require_command mreceive
fi

if [[ ! -v NUM_NETIFS ]]; then
	echo "SKIP: importer does not define \"NUM_NETIFS\""
	exit $ksft_skip
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 = 1; i <= NUM_NETIFS; ++i)); do
		local j=$((i+1))

		if [ -z ${NETIFS[p$i]} ]; then
			echo "SKIP: Cannot create interface. Name not specified"
			exit $ksft_skip
		fi

		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
}

declare -A MAC_ADDR_ORIG
mac_addr_prepare()
{
	local new_addr=
	local dev=

	for ((i = 1; i <= NUM_NETIFS; ++i)); do
		dev=${NETIFS[p$i]}
		new_addr=$(printf "00:01:02:03:04:%02x" $i)

		MAC_ADDR_ORIG["$dev"]=$(ip -j link show dev $dev | jq -e '.[].address')
		# Strip quotes
		MAC_ADDR_ORIG["$dev"]=${MAC_ADDR_ORIG["$dev"]//\"/}
		ip link set dev $dev address $new_addr
	done
}

mac_addr_restore()
{
	local dev=

	for ((i = 1; i <= NUM_NETIFS; ++i)); do
		dev=${NETIFS[p$i]}
		ip link set dev $dev address ${MAC_ADDR_ORIG["$dev"]}
	done
}

if [[ "$NETIF_CREATE" = "yes" ]]; then
	create_netif
fi

if [[ "$STABLE_MAC_ADDRS" = "yes" ]]; then
	mac_addr_prepare
fi

for ((i = 1; i <= NUM_NETIFS; ++i)); do
	ip link show dev ${NETIFS[p$i]} &> /dev/null
	if [[ $? -ne 0 ]]; then
		echo "SKIP: could not find all required interfaces"
		exit $ksft_skip
	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
}

check_err_fail()
{
	local should_fail=$1; shift
	local err=$1; shift
	local what=$1; shift

	if ((should_fail)); then
		check_fail $err "$what succeeded, but should have failed"
	else
		check_err $err "$what failed"
	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  [ OK ]\n" "$test_name $opt_str"
	return 0
}

log_test_skip()
{
	local test_name=$1
	local opt_str=$2

	printf "TEST: %-60s  [SKIP]\n" "$test_name $opt_str"
	return 0
}

log_info()
{
	local msg=$1

	echo "INFO: $msg"
}

busywait()
{
	local timeout=$1; shift

	local start_time="$(date -u +%s%3N)"
	while true
	do
		local out
		out=$("$@")
		local ret=$?
		if ((!ret)); then
			echo -n "$out"
			return 0
		fi

		local current_time="$(date -u +%s%3N)"
		if ((current_time - start_time > timeout)); then
			echo -n "$out"
			return 1
		fi
	done
}

not()
{
	"$@"
	[[ $? != 0 ]]
}

get_max()
{
	local arr=("$@")

	max=${arr[0]}
	for cur in ${arr[@]}; do
		if [[ $cur -gt $max ]]; then
			max=$cur
		fi
	done

	echo $max
}

grep_bridge_fdb()
{
	local addr=$1; shift
	local word
	local flag

	if [ "$1" == "self" ] || [ "$1" == "master" ]; then
		word=$1; shift
		if [ "$1" == "-v" ]; then
			flag=$1; shift
		fi
	fi

	$@ | grep $addr | grep $flag "$word"
}

wait_for_port_up()
{
	"$@" | grep -q "Link detected: yes"
}

wait_for_offload()
{
	"$@" | grep -q offload
}

wait_for_trap()
{
	"$@" | grep -q trap
}

until_counter_is()
{
	local expr=$1; shift
	local current=$("$@")

	echo $((current))
	((current $expr))
}

busywait_for_counter()
{
	local timeout=$1; shift
	local delta=$1; shift

	local base=$("$@")
	busywait "$timeout" until_counter_is ">= $((base + delta))" "$@"
}

setup_wait_dev()
{
	local dev=$1; shift
	local wait_time=${1:-$WAIT_TIME}; shift

	setup_wait_dev_with_timeout "$dev" $INTERFACE_TIMEOUT $wait_time

	if (($?)); then
		check_err 1
		log_test setup_wait_dev ": Interface $dev does not come up."
		exit 1
	fi
}

setup_wait_dev_with_timeout()
{
	local dev=$1; shift
	local max_iterations=${1:-$WAIT_TIMEOUT}; shift
	local wait_time=${1:-$WAIT_TIME}; shift
	local i

	for ((i = 1; i <= $max_iterations; ++i)); do
		ip link show dev $dev up \
			| grep 'state UP' &> /dev/null
		if [[ $? -ne 0 ]]; then
			sleep 1
		else
			sleep $wait_time
			return 0
		fi
	done

	return 1
}

setup_wait()
{
	local num_netifs=${1:-$NUM_NETIFS}
	local i

	for ((i = 1; i <= num_netifs; ++i)); do
		setup_wait_dev ${NETIFS[p$i]} 0
	done

	# Make sure links are ready.
	sleep $WAIT_TIME
}

cmd_jq()
{
	local cmd=$1
	local jq_exp=$2
	local jq_opts=$3
	local ret
	local output

	output="$($cmd)"
	# it the command fails, return error right away
	ret=$?
	if [[ $ret -ne 0 ]]; then
		return $ret
	fi
	output=$(echo $output | jq -r $jq_opts "$jq_exp")
	ret=$?
	if [[ $ret -ne 0 ]]; then
		return $ret
	fi
	echo $output
	# return success only in case of non-empty output
	[ ! -z "$output" ]
}

lldpad_app_wait_set()
{
	local dev=$1; shift

	while lldptool -t -i $dev -V APP -c app | grep -Eq "pending|unknown"; do
		echo "$dev: waiting for lldpad to push pending APP updates"
		sleep 5
	done
}

lldpad_app_wait_del()
{
	# Give lldpad a chance to push down the changes. If the device is downed
	# too soon, the updates will be left pending. However, they will have
	# been struck off the lldpad's DB already, so we won't be able to tell
	# they are pending. Then on next test iteration this would cause
	# weirdness as newly-added APP rules conflict with the old ones,
	# sometimes getting stuck in an "unknown" state.
	sleep 5
}

pre_cleanup()
{
	if [ "${PAUSE_ON_CLEANUP}" = "yes" ]; then
		echo "Pausing before cleanup, hit any key to continue"
		read
	fi

	if [[ "$STABLE_MAC_ADDRS" = "yes" ]]; then
		mac_addr_restore
	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; shift
	local vrf_name=$1; shift
	local addrs=("${@}")

	ip link set dev $if_name master $vrf_name
	ip link set dev $if_name up

	__addr_add_del $if_name add "${addrs[@]}"
}

__simple_if_fini()
{
	local if_name=$1; shift
	local addrs=("${@}")

	__addr_add_del $if_name del "${addrs[@]}"

	ip link set dev $if_name down
	ip link set dev $if_name nomaster
}

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 $vrf_name up
	__simple_if_init $if_name $vrf_name "${array[@]}"
}

simple_if_fini()
{
	local if_name=$1
	local vrf_name
	local array

	shift
	vrf_name=v$if_name
	array=("${@}")

	__simple_if_fini $if_name "${array[@]}"
	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
}

vlan_create()
{
	local if_name=$1; shift
	local vid=$1; shift
	local vrf=$1; shift
	local ips=("${@}")
	local name=$if_name.$vid

	ip link add name $name link $if_name type vlan id $vid
	if [ "$vrf" != "" ]; then
		ip link set dev $name master $vrf
	fi
	ip link set dev $name up
	__addr_add_del $name add "${ips[@]}"
}

vlan_destroy()
{
	local if_name=$1; shift
	local vid=$1; shift
	local name=$if_name.$vid

	ip link del dev $name
}

team_create()
{
	local if_name=$1; shift
	local mode=$1; shift

	require_command $TEAMD
	$TEAMD -t $if_name -d -c '{"runner": {"name": "'$mode'"}}'
	for slave in "$@"; do
		ip link set dev $slave down
		ip link set dev $slave master $if_name
		ip link set dev $slave up
	done
	ip link set dev $if_name up
}

team_destroy()
{
	local if_name=$1; shift

	$TEAMD -t $if_name -k
}

master_name_get()
{
	local if_name=$1

	ip -j link show dev $if_name | jq -r '.[]["master"]'
}

link_stats_get()
{
	local if_name=$1; shift
	local dir=$1; shift
	local stat=$1; shift

	ip -j -s link show dev $if_name \
		| jq '.[]["stats64"]["'$dir'"]["'$stat'"]'
}

link_stats_tx_packets_get()
{
	link_stats_get $1 tx packets
}

link_stats_rx_errors_get()
{
	link_stats_get $1 rx errors
}

tc_rule_stats_get()
{
	local dev=$1; shift
	local pref=$1; shift
	local dir=$1; shift
	local selector=${1:-.packets}; shift

	tc -j -s filter show dev $dev ${dir:-ingress} pref $pref \
	    | jq ".[1].options.actions[].stats$selector"
}

tc_rule_handle_stats_get()
{
	local id=$1; shift
	local handle=$1; shift
	local selector=${1:-.packets}; shift

	tc -j -s filter show $id \
	    | jq ".[] | select(.options.handle == $handle) | \
		  .options.actions[0].stats$selector"
}

ethtool_stats_get()
{
	local dev=$1; shift
	local stat=$1; shift

	ethtool -S $dev | grep "^ *$stat:" | head -n 1 | cut -d: -f2
}

qdisc_stats_get()
{
	local dev=$1; shift
	local handle=$1; shift
	local selector=$1; shift

	tc -j -s qdisc show dev "$dev" \
	    | jq '.[] | select(.handle == "'"$handle"'") | '"$selector"
}

qdisc_parent_stats_get()
{
	local dev=$1; shift
	local parent=$1; shift
	local selector=$1; shift

	tc -j -s qdisc show dev "$dev" invisible \
	    | jq '.[] | select(.parent == "'"$parent"'") | '"$selector"
}

ipv6_stats_get()
{
	local dev=$1; shift
	local stat=$1; shift

	cat /proc/net/dev_snmp6/$dev | grep "^$stat" | cut -f2
}

hw_stats_get()
{
	local suite=$1; shift
	local if_name=$1; shift
	local dir=$1; shift
	local stat=$1; shift

	ip -j stats show dev $if_name group offload subgroup $suite |
		jq ".[0].stats64.$dir.$stat"
}

humanize()
{
	local speed=$1; shift

	for unit in bps Kbps Mbps Gbps; do
		if (($(echo "$speed < 1024" | bc))); then
			break
		fi

		speed=$(echo "scale=1; $speed / 1024" | bc)
	done

	echo "$speed${unit}"
}

rate()
{
	local t0=$1; shift
	local t1=$1; shift
	local interval=$1; shift

	echo $((8 * (t1 - t0) / interval))
}

packets_rate()
{
	local t0=$1; shift
	local t1=$1; shift
	local interval=$1; shift

	echo $(((t1 - t0) / interval))
}

mac_get()
{
	local if_name=$1

	ip -j link show dev $if_name | jq -r '.[]["address"]'
}

ipv6_lladdr_get()
{
	local if_name=$1

	ip -j addr show dev $if_name | \
		jq -r '.[]["addr_info"][] | select(.scope == "link").local' | \
		head -1
}

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
}

declare -A MTU_ORIG
mtu_set()
{
	local dev=$1; shift
	local mtu=$1; shift

	MTU_ORIG["$dev"]=$(ip -j link show dev $dev | jq -e '.[].mtu')
	ip link set dev $dev mtu $mtu
}

mtu_restore()
{
	local dev=$1; shift

	ip link set dev $dev mtu ${MTU_ORIG["$dev"]}
}

tc_offload_check()
{
	local num_netifs=${1:-$NUM_NETIFS}

	for ((i = 1; i <= num_netifs; ++i)); do
		ethtool -k ${NETIFS[p$i]} \
			| grep "hw-tc-offload: on" &> /dev/null
		if [[ $? -ne 0 ]]; then
			return 1
		fi
	done

	return 0
}

trap_install()
{
	local dev=$1; shift
	local direction=$1; shift

	# Some devices may not support or need in-hardware trapping of traffic
	# (e.g. the veth pairs that this library creates for non-existent
	# loopbacks). Use continue instead, so that there is a filter in there
	# (some tests check counters), and so that other filters are still
	# processed.
	tc filter add dev $dev $direction pref 1 \
		flower skip_sw action trap 2>/dev/null \
	    || tc filter add dev $dev $direction pref 1 \
		       flower action continue
}

trap_uninstall()
{
	local dev=$1; shift
	local direction=$1; shift

	tc filter del dev $dev $direction pref 1 flower
}

slow_path_trap_install()
{
	# For slow-path testing, we need to install a trap to get to
	# slow path the packets that would otherwise be switched in HW.
	if [ "${tcflags/skip_hw}" != "$tcflags" ]; then
		trap_install "$@"
	fi
}

slow_path_trap_uninstall()
{
	if [ "${tcflags/skip_hw}" != "$tcflags" ]; then
		trap_uninstall "$@"
	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 "$@"
}

__vlan_capture_add_del()
{
	local add_del=$1; shift
	local pref=$1; shift
	local dev=$1; shift
	local filter=$1; shift

	tc filter $add_del dev "$dev" ingress \
	   proto 802.1q pref $pref \
	   flower $filter \
	   action pass
}

vlan_capture_install()
{
	__vlan_capture_add_del add 100 "$@"
}

vlan_capture_uninstall()
{
	__vlan_capture_add_del del 100 "$@"
}

__dscp_capture_add_del()
{
	local add_del=$1; shift
	local dev=$1; shift
	local base=$1; shift
	local dscp;

	for prio in {0..7}; do
		dscp=$((base + prio))
		__icmp_capture_add_del $add_del $((dscp + 100)) "" $dev \
				       "skip_hw ip_tos $((dscp << 2))"
	done
}

dscp_capture_install()
{
	local dev=$1; shift
	local base=$1; shift

	__dscp_capture_add_del add $dev $base
}

dscp_capture_uninstall()
{
	local dev=$1; shift
	local base=$1; shift

	__dscp_capture_add_del del $dev $base
}

dscp_fetch_stats()
{
	local dev=$1; shift
	local base=$1; shift

	for prio in {0..7}; do
		local dscp=$((base + prio))
		local t=$(tc_rule_stats_get $dev $((dscp + 100)))
		echo "[$dscp]=$t "
	done
}

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
}

multipath_eval()
{
	local desc="$1"
	local weight_rp12=$2
	local weight_rp13=$3
	local packets_rp12=$4
	local packets_rp13=$5
	local weights_ratio packets_ratio diff

	RET=0

	if [[ "$weight_rp12" -gt "$weight_rp13" ]]; then
		weights_ratio=$(echo "scale=2; $weight_rp12 / $weight_rp13" \
				| bc -l)
	else
		weights_ratio=$(echo "scale=2; $weight_rp13 / $weight_rp12" \
				| bc -l)
	fi

	if [[ "$packets_rp12" -eq "0" || "$packets_rp13" -eq "0" ]]; then
	       check_err 1 "Packet difference is 0"
	       log_test "Multipath"
	       log_info "Expected ratio $weights_ratio"
	       return
	fi

	if [[ "$weight_rp12" -gt "$weight_rp13" ]]; then
		packets_ratio=$(echo "scale=2; $packets_rp12 / $packets_rp13" \
				| bc -l)
	else
		packets_ratio=$(echo "scale=2; $packets_rp13 / $packets_rp12" \
				| bc -l)
	fi

	diff=$(echo $weights_ratio - $packets_ratio | bc -l)
	diff=${diff#-}

	test "$(echo "$diff / $weights_ratio > 0.15" | bc -l)" -eq 0
	check_err $? "Too large discrepancy between expected and measured ratios"
	log_test "$desc"
	log_info "Expected ratio $weights_ratio Measured ratio $packets_ratio"
}

in_ns()
{
	local name=$1; shift

	ip netns exec $name bash <<-EOF
		NUM_NETIFS=0
		source lib.sh
		$(for a in "$@"; do printf "%q${IFS:0:1}" "$a"; done)
	EOF
}

##############################################################################
# Tests

ping_do()
{
	local if_name=$1
	local dip=$2
	local args=$3
	local vrf_name

	vrf_name=$(master_name_get $if_name)
	ip vrf exec $vrf_name \
		$PING $args $dip -c $PING_COUNT -i 0.1 \
		-w $PING_TIMEOUT &> /dev/null
}

ping_test()
{
	RET=0

	ping_do $1 $2
	check_err $?
	log_test "ping$3"
}

ping6_do()
{
	local if_name=$1
	local dip=$2
	local args=$3
	local vrf_name

	vrf_name=$(master_name_get $if_name)
	ip vrf exec $vrf_name \
		$PING6 $args $dip -c $PING_COUNT -i 0.1 \
		-w $PING_TIMEOUT &> /dev/null
}

ping6_test()
{
	RET=0

	ping6_do $1 $2
	check_err $?
	log_test "ping6$3"
}

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

	ip link set $host1_if promisc on
	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 first 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
	ip link set $host1_if promisc off

	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.
	ip link set $host2_if promisc on
	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
	ip link set $host2_if promisc off

	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
}

__start_traffic()
{
	local pktsize=$1; shift
	local proto=$1; shift
	local h_in=$1; shift    # Where the traffic egresses the host
	local sip=$1; shift
	local dip=$1; shift
	local dmac=$1; shift

	$MZ $h_in -p $pktsize -A $sip -B $dip -c 0 \
		-a own -b $dmac -t "$proto" -q "$@" &
	sleep 1
}

start_traffic_pktsize()
{
	local pktsize=$1; shift

	__start_traffic $pktsize udp "$@"
}

start_tcp_traffic_pktsize()
{
	local pktsize=$1; shift

	__start_traffic $pktsize tcp "$@"
}

start_traffic()
{
	start_traffic_pktsize 8000 "$@"
}

start_tcp_traffic()
{
	start_tcp_traffic_pktsize 8000 "$@"
}

stop_traffic()
{
	# Suppress noise from killing mausezahn.
	{ kill %% && wait %%; } 2>/dev/null
}

declare -A cappid
declare -A capfile
declare -A capout

tcpdump_start()
{
	local if_name=$1; shift
	local ns=$1; shift

	capfile[$if_name]=$(mktemp)
	capout[$if_name]=$(mktemp)

	if [ -z $ns ]; then
		ns_cmd=""
	else
		ns_cmd="ip netns exec ${ns}"
	fi

	if [ -z $SUDO_USER ] ; then
		capuser=""
	else
		capuser="-Z $SUDO_USER"
	fi

	$ns_cmd tcpdump $TCPDUMP_EXTRA_FLAGS -e -n -Q in -i $if_name \
		-s 65535 -B 32768 $capuser -w ${capfile[$if_name]} \
		> "${capout[$if_name]}" 2>&1 &
	cappid[$if_name]=$!

	sleep 1
}

tcpdump_stop()
{
	local if_name=$1
	local pid=${cappid[$if_name]}

	$ns_cmd kill "$pid" && wait "$pid"
	sleep 1
}

tcpdump_cleanup()
{
	local if_name=$1

	rm ${capfile[$if_name]} ${capout[$if_name]}
}

tcpdump_show()
{
	local if_name=$1

	tcpdump -e -n -r ${capfile[$if_name]} 2>&1
}

# return 0 if the packet wasn't seen on host2_if or 1 if it was
mcast_packet_test()
{
	local mac=$1
	local src_ip=$2
	local ip=$3
	local host1_if=$4
	local host2_if=$5
	local seen=0
	local tc_proto="ip"
	local mz_v6arg=""

	# basic check to see if we were passed an IPv4 address, if not assume IPv6
	if [[ ! $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
		tc_proto="ipv6"
		mz_v6arg="-6"
	fi

	# Add an ACL on `host2_if` which will tell us whether the packet
	# was received by it or not.
	tc qdisc add dev $host2_if ingress
	tc filter add dev $host2_if ingress protocol $tc_proto pref 1 handle 101 \
		flower ip_proto udp dst_mac $mac action drop

	$MZ $host1_if $mz_v6arg -c 1 -p 64 -b $mac -A $src_ip -B $ip -t udp "dp=4096,sp=2048" -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 [[ $? -eq 0 ]]; then
		seen=1
	fi

	tc filter del dev $host2_if ingress protocol $tc_proto pref 1 handle 101 flower
	tc qdisc del dev $host2_if ingress

	return $seen
}

brmcast_check_sg_entries()
{
	local report=$1; shift
	local slist=("$@")
	local sarg=""

	for src in "${slist[@]}"; do
		sarg="${sarg} and .source_list[].address == \"$src\""
	done
	bridge -j -d -s mdb show dev br0 \
		| jq -e ".[].mdb[] | \
			 select(.grp == \"$TEST_GROUP\" and .source_list != null $sarg)" &>/dev/null
	check_err $? "Wrong *,G entry source list after $report report"

	for sgent in "${slist[@]}"; do
		bridge -j -d -s mdb show dev br0 \
			| jq -e ".[].mdb[] | \
				 select(.grp == \"$TEST_GROUP\" and .src == \"$sgent\")" &>/dev/null
		check_err $? "Missing S,G entry ($sgent, $TEST_GROUP)"
	done
}

brmcast_check_sg_fwding()
{
	local should_fwd=$1; shift
	local sources=("$@")

	for src in "${sources[@]}"; do
		local retval=0

		mcast_packet_test $TEST_GROUP_MAC $src $TEST_GROUP $h2 $h1
		retval=$?
		if [ $should_fwd -eq 1 ]; then
			check_fail $retval "Didn't forward traffic from S,G ($src, $TEST_GROUP)"
		else
			check_err $retval "Forwarded traffic for blocked S,G ($src, $TEST_GROUP)"
		fi
	done
}

brmcast_check_sg_state()
{
	local is_blocked=$1; shift
	local sources=("$@")
	local should_fail=1

	if [ $is_blocked -eq 1 ]; then
		should_fail=0
	fi

	for src in "${sources[@]}"; do
		bridge -j -d -s mdb show dev br0 \
			| jq -e ".[].mdb[] | \
				 select(.grp == \"$TEST_GROUP\" and .source_list != null) |
				 .source_list[] |
				 select(.address == \"$src\") |
				 select(.timer == \"0.00\")" &>/dev/null
		check_err_fail $should_fail $? "Entry $src has zero timer"

		bridge -j -d -s mdb show dev br0 \
			| jq -e ".[].mdb[] | \
				 select(.grp == \"$TEST_GROUP\" and .src == \"$src\" and \
				 .flags[] == \"blocked\")" &>/dev/null
		check_err_fail $should_fail $? "Entry $src has blocked flag"
	done
}

mc_join()
{
	local if_name=$1
	local group=$2
	local vrf_name=$(master_name_get $if_name)

	# We don't care about actual reception, just about joining the
	# IP multicast group and adding the L2 address to the device's
	# MAC filtering table
	ip vrf exec $vrf_name \
		mreceive -g $group -I $if_name > /dev/null 2>&1 &
	mreceive_pid=$!

	sleep 1
}

mc_leave()
{
	kill "$mreceive_pid" && wait "$mreceive_pid"
}

mc_send()
{
	local if_name=$1
	local groups=$2
	local vrf_name=$(master_name_get $if_name)

	ip vrf exec $vrf_name \
		msend -g $groups -I $if_name -c 1 > /dev/null 2>&1
}

start_ip_monitor()
{
	local mtype=$1; shift
	local ip=${1-ip}; shift

	# start the monitor in the background
	tmpfile=`mktemp /var/run/nexthoptestXXX`
	mpid=`($ip monitor $mtype > $tmpfile & echo $!) 2>/dev/null`
	sleep 0.2
	echo "$mpid $tmpfile"
}

stop_ip_monitor()
{
	local mpid=$1; shift
	local tmpfile=$1; shift
	local el=$1; shift
	local what=$1; shift

	sleep 0.2
	kill $mpid
	local lines=`grep '^\w' $tmpfile | wc -l`
	test $lines -eq $el
	check_err $? "$what: $lines lines of events, expected $el"
	rm -rf $tmpfile
}

hw_stats_monitor_test()
{
	local dev=$1; shift
	local type=$1; shift
	local make_suitable=$1; shift
	local make_unsuitable=$1; shift
	local ip=${1-ip}; shift

	RET=0

	# Expect a notification about enablement.
	local ipmout=$(start_ip_monitor stats "$ip")
	$ip stats set dev $dev ${type}_stats on
	stop_ip_monitor $ipmout 1 "${type}_stats enablement"

	# Expect a notification about offload.
	local ipmout=$(start_ip_monitor stats "$ip")
	$make_suitable
	stop_ip_monitor $ipmout 1 "${type}_stats installation"

	# Expect a notification about loss of offload.
	local ipmout=$(start_ip_monitor stats "$ip")
	$make_unsuitable
	stop_ip_monitor $ipmout 1 "${type}_stats deinstallation"

	# Expect a notification about disablement
	local ipmout=$(start_ip_monitor stats "$ip")
	$ip stats set dev $dev ${type}_stats off
	stop_ip_monitor $ipmout 1 "${type}_stats disablement"

	log_test "${type}_stats notifications"
}