summaryrefslogtreecommitdiff
path: root/tools/testing/selftests/net/fib_tests.sh
blob: 2b5707738609ef313e533c78492e25bbc6a02313 (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
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0

# This test is for checking IPv4 and IPv6 FIB behavior in response to
# different events.

ret=0
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4

# all tests in this script. Can be overridden with -t option
TESTS="unregister down carrier nexthop suppress ipv6_rt ipv4_rt ipv6_addr_metric ipv4_addr_metric ipv6_route_metrics ipv4_route_metrics ipv4_route_v6_gw rp_filter ipv4_del_addr"

VERBOSE=0
PAUSE_ON_FAIL=no
PAUSE=no
IP="ip -netns ns1"
NS_EXEC="ip netns exec ns1"

which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)

log_test()
{
	local rc=$1
	local expected=$2
	local msg="$3"

	if [ ${rc} -eq ${expected} ]; then
		printf "    TEST: %-60s  [ OK ]\n" "${msg}"
		nsuccess=$((nsuccess+1))
	else
		ret=1
		nfail=$((nfail+1))
		printf "    TEST: %-60s  [FAIL]\n" "${msg}"
		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
		echo
			echo "hit enter to continue, 'q' to quit"
			read a
			[ "$a" = "q" ] && exit 1
		fi
	fi

	if [ "${PAUSE}" = "yes" ]; then
		echo
		echo "hit enter to continue, 'q' to quit"
		read a
		[ "$a" = "q" ] && exit 1
	fi
}

setup()
{
	set -e
	ip netns add ns1
	ip netns set ns1 auto
	$IP link set dev lo up
	ip netns exec ns1 sysctl -qw net.ipv4.ip_forward=1
	ip netns exec ns1 sysctl -qw net.ipv6.conf.all.forwarding=1

	$IP link add dummy0 type dummy
	$IP link set dev dummy0 up
	$IP address add 198.51.100.1/24 dev dummy0
	$IP -6 address add 2001:db8:1::1/64 dev dummy0
	set +e

}

cleanup()
{
	$IP link del dev dummy0 &> /dev/null
	ip netns del ns1
	ip netns del ns2 &> /dev/null
}

get_linklocal()
{
	local dev=$1
	local addr

	addr=$($IP -6 -br addr show dev ${dev} | \
	awk '{
		for (i = 3; i <= NF; ++i) {
			if ($i ~ /^fe80/)
				print $i
		}
	}'
	)
	addr=${addr/\/*}

	[ -z "$addr" ] && return 1

	echo $addr

	return 0
}

fib_unreg_unicast_test()
{
	echo
	echo "Single path route test"

	setup

	echo "    Start point"
	$IP route get fibmatch 198.51.100.2 &> /dev/null
	log_test $? 0 "IPv4 fibmatch"
	$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
	log_test $? 0 "IPv6 fibmatch"

	set -e
	$IP link del dev dummy0
	set +e

	echo "    Nexthop device deleted"
	$IP route get fibmatch 198.51.100.2 &> /dev/null
	log_test $? 2 "IPv4 fibmatch - no route"
	$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
	log_test $? 2 "IPv6 fibmatch - no route"

	cleanup
}

fib_unreg_multipath_test()
{

	echo
	echo "Multipath route test"

	setup

	set -e
	$IP link add dummy1 type dummy
	$IP link set dev dummy1 up
	$IP address add 192.0.2.1/24 dev dummy1
	$IP -6 address add 2001:db8:2::1/64 dev dummy1

	$IP route add 203.0.113.0/24 \
		nexthop via 198.51.100.2 dev dummy0 \
		nexthop via 192.0.2.2 dev dummy1
	$IP -6 route add 2001:db8:3::/64 \
		nexthop via 2001:db8:1::2 dev dummy0 \
		nexthop via 2001:db8:2::2 dev dummy1
	set +e

	echo "    Start point"
	$IP route get fibmatch 203.0.113.1 &> /dev/null
	log_test $? 0 "IPv4 fibmatch"
	$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
	log_test $? 0 "IPv6 fibmatch"

	set -e
	$IP link del dev dummy0
	set +e

	echo "    One nexthop device deleted"
	$IP route get fibmatch 203.0.113.1 &> /dev/null
	log_test $? 2 "IPv4 - multipath route removed on delete"

	$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
	# In IPv6 we do not flush the entire multipath route.
	log_test $? 0 "IPv6 - multipath down to single path"

	set -e
	$IP link del dev dummy1
	set +e

	echo "    Second nexthop device deleted"
	$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
	log_test $? 2 "IPv6 - no route"

	cleanup
}

fib_unreg_test()
{
	fib_unreg_unicast_test
	fib_unreg_multipath_test
}

fib_down_unicast_test()
{
	echo
	echo "Single path, admin down"

	setup

	echo "    Start point"
	$IP route get fibmatch 198.51.100.2 &> /dev/null
	log_test $? 0 "IPv4 fibmatch"
	$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
	log_test $? 0 "IPv6 fibmatch"

	set -e
	$IP link set dev dummy0 down
	set +e

	echo "    Route deleted on down"
	$IP route get fibmatch 198.51.100.2 &> /dev/null
	log_test $? 2 "IPv4 fibmatch"
	$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
	log_test $? 2 "IPv6 fibmatch"

	cleanup
}

fib_down_multipath_test_do()
{
	local down_dev=$1
	local up_dev=$2

	$IP route get fibmatch 203.0.113.1 \
		oif $down_dev &> /dev/null
	log_test $? 2 "IPv4 fibmatch on down device"
	$IP -6 route get fibmatch 2001:db8:3::1 \
		oif $down_dev &> /dev/null
	log_test $? 2 "IPv6 fibmatch on down device"

	$IP route get fibmatch 203.0.113.1 \
		oif $up_dev &> /dev/null
	log_test $? 0 "IPv4 fibmatch on up device"
	$IP -6 route get fibmatch 2001:db8:3::1 \
		oif $up_dev &> /dev/null
	log_test $? 0 "IPv6 fibmatch on up device"

	$IP route get fibmatch 203.0.113.1 | \
		grep $down_dev | grep -q "dead linkdown"
	log_test $? 0 "IPv4 flags on down device"
	$IP -6 route get fibmatch 2001:db8:3::1 | \
		grep $down_dev | grep -q "dead linkdown"
	log_test $? 0 "IPv6 flags on down device"

	$IP route get fibmatch 203.0.113.1 | \
		grep $up_dev | grep -q "dead linkdown"
	log_test $? 1 "IPv4 flags on up device"
	$IP -6 route get fibmatch 2001:db8:3::1 | \
		grep $up_dev | grep -q "dead linkdown"
	log_test $? 1 "IPv6 flags on up device"
}

fib_down_multipath_test()
{
	echo
	echo "Admin down multipath"

	setup

	set -e
	$IP link add dummy1 type dummy
	$IP link set dev dummy1 up

	$IP address add 192.0.2.1/24 dev dummy1
	$IP -6 address add 2001:db8:2::1/64 dev dummy1

	$IP route add 203.0.113.0/24 \
		nexthop via 198.51.100.2 dev dummy0 \
		nexthop via 192.0.2.2 dev dummy1
	$IP -6 route add 2001:db8:3::/64 \
		nexthop via 2001:db8:1::2 dev dummy0 \
		nexthop via 2001:db8:2::2 dev dummy1
	set +e

	echo "    Verify start point"
	$IP route get fibmatch 203.0.113.1 &> /dev/null
	log_test $? 0 "IPv4 fibmatch"

	$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
	log_test $? 0 "IPv6 fibmatch"

	set -e
	$IP link set dev dummy0 down
	set +e

	echo "    One device down, one up"
	fib_down_multipath_test_do "dummy0" "dummy1"

	set -e
	$IP link set dev dummy0 up
	$IP link set dev dummy1 down
	set +e

	echo "    Other device down and up"
	fib_down_multipath_test_do "dummy1" "dummy0"

	set -e
	$IP link set dev dummy0 down
	set +e

	echo "    Both devices down"
	$IP route get fibmatch 203.0.113.1 &> /dev/null
	log_test $? 2 "IPv4 fibmatch"
	$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
	log_test $? 2 "IPv6 fibmatch"

	$IP link del dev dummy1
	cleanup
}

fib_down_test()
{
	fib_down_unicast_test
	fib_down_multipath_test
}

# Local routes should not be affected when carrier changes.
fib_carrier_local_test()
{
	echo
	echo "Local carrier tests - single path"

	setup

	set -e
	$IP link set dev dummy0 carrier on
	set +e

	echo "    Start point"
	$IP route get fibmatch 198.51.100.1 &> /dev/null
	log_test $? 0 "IPv4 fibmatch"
	$IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null
	log_test $? 0 "IPv6 fibmatch"

	$IP route get fibmatch 198.51.100.1 | \
		grep -q "linkdown"
	log_test $? 1 "IPv4 - no linkdown flag"
	$IP -6 route get fibmatch 2001:db8:1::1 | \
		grep -q "linkdown"
	log_test $? 1 "IPv6 - no linkdown flag"

	set -e
	$IP link set dev dummy0 carrier off
	sleep 1
	set +e

	echo "    Carrier off on nexthop"
	$IP route get fibmatch 198.51.100.1 &> /dev/null
	log_test $? 0 "IPv4 fibmatch"
	$IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null
	log_test $? 0 "IPv6 fibmatch"

	$IP route get fibmatch 198.51.100.1 | \
		grep -q "linkdown"
	log_test $? 1 "IPv4 - linkdown flag set"
	$IP -6 route get fibmatch 2001:db8:1::1 | \
		grep -q "linkdown"
	log_test $? 1 "IPv6 - linkdown flag set"

	set -e
	$IP address add 192.0.2.1/24 dev dummy0
	$IP -6 address add 2001:db8:2::1/64 dev dummy0
	set +e

	echo "    Route to local address with carrier down"
	$IP route get fibmatch 192.0.2.1 &> /dev/null
	log_test $? 0 "IPv4 fibmatch"
	$IP -6 route get fibmatch 2001:db8:2::1 &> /dev/null
	log_test $? 0 "IPv6 fibmatch"

	$IP route get fibmatch 192.0.2.1 | \
		grep -q "linkdown"
	log_test $? 1 "IPv4 linkdown flag set"
	$IP -6 route get fibmatch 2001:db8:2::1 | \
		grep -q "linkdown"
	log_test $? 1 "IPv6 linkdown flag set"

	cleanup
}

fib_carrier_unicast_test()
{
	ret=0

	echo
	echo "Single path route carrier test"

	setup

	set -e
	$IP link set dev dummy0 carrier on
	set +e

	echo "    Start point"
	$IP route get fibmatch 198.51.100.2 &> /dev/null
	log_test $? 0 "IPv4 fibmatch"
	$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
	log_test $? 0 "IPv6 fibmatch"

	$IP route get fibmatch 198.51.100.2 | \
		grep -q "linkdown"
	log_test $? 1 "IPv4 no linkdown flag"
	$IP -6 route get fibmatch 2001:db8:1::2 | \
		grep -q "linkdown"
	log_test $? 1 "IPv6 no linkdown flag"

	set -e
	$IP link set dev dummy0 carrier off
	sleep 1
	set +e

	echo "    Carrier down"
	$IP route get fibmatch 198.51.100.2 &> /dev/null
	log_test $? 0 "IPv4 fibmatch"
	$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
	log_test $? 0 "IPv6 fibmatch"

	$IP route get fibmatch 198.51.100.2 | \
		grep -q "linkdown"
	log_test $? 0 "IPv4 linkdown flag set"
	$IP -6 route get fibmatch 2001:db8:1::2 | \
		grep -q "linkdown"
	log_test $? 0 "IPv6 linkdown flag set"

	set -e
	$IP address add 192.0.2.1/24 dev dummy0
	$IP -6 address add 2001:db8:2::1/64 dev dummy0
	set +e

	echo "    Second address added with carrier down"
	$IP route get fibmatch 192.0.2.2 &> /dev/null
	log_test $? 0 "IPv4 fibmatch"
	$IP -6 route get fibmatch 2001:db8:2::2 &> /dev/null
	log_test $? 0 "IPv6 fibmatch"

	$IP route get fibmatch 192.0.2.2 | \
		grep -q "linkdown"
	log_test $? 0 "IPv4 linkdown flag set"
	$IP -6 route get fibmatch 2001:db8:2::2 | \
		grep -q "linkdown"
	log_test $? 0 "IPv6 linkdown flag set"

	cleanup
}

fib_carrier_test()
{
	fib_carrier_local_test
	fib_carrier_unicast_test
}

fib_rp_filter_test()
{
	echo
	echo "IPv4 rp_filter tests"

	setup

	set -e
	$IP link set dev lo address 52:54:00:6a:c7:5e
	$IP link set dummy0 address 52:54:00:6a:c7:5e
	$IP link add dummy1 type dummy
	$IP link set dummy1 address 52:54:00:6a:c7:5e
	$IP link set dev dummy1 up
	$NS_EXEC sysctl -qw net.ipv4.conf.all.rp_filter=1
	$NS_EXEC sysctl -qw net.ipv4.conf.all.accept_local=1
	$NS_EXEC sysctl -qw net.ipv4.conf.all.route_localnet=1

	$NS_EXEC tc qd add dev dummy1 parent root handle 1: fq_codel
	$NS_EXEC tc filter add dev dummy1 parent 1: protocol arp basic action mirred egress redirect dev lo
	$NS_EXEC tc filter add dev dummy1 parent 1: protocol ip basic action mirred egress redirect dev lo
	set +e

	run_cmd "ip netns exec ns1 ping -I dummy1 -w1 -c1 198.51.100.1"
	log_test $? 0 "rp_filter passes local packets"

	run_cmd "ip netns exec ns1 ping -I dummy1 -w1 -c1 127.0.0.1"
	log_test $? 0 "rp_filter passes loopback packets"

	cleanup
}

################################################################################
# Tests on nexthop spec

# run 'ip route add' with given spec
add_rt()
{
	local desc="$1"
	local erc=$2
	local vrf=$3
	local pfx=$4
	local gw=$5
	local dev=$6
	local cmd out rc

	[ "$vrf" = "-" ] && vrf="default"
	[ -n "$gw" ] && gw="via $gw"
	[ -n "$dev" ] && dev="dev $dev"

	cmd="$IP route add vrf $vrf $pfx $gw $dev"
	if [ "$VERBOSE" = "1" ]; then
		printf "\n    COMMAND: $cmd\n"
	fi

	out=$(eval $cmd 2>&1)
	rc=$?
	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
		echo "    $out"
	fi
	log_test $rc $erc "$desc"
}

fib4_nexthop()
{
	echo
	echo "IPv4 nexthop tests"

	echo "<<< write me >>>"
}

fib6_nexthop()
{
	local lldummy=$(get_linklocal dummy0)
	local llv1=$(get_linklocal dummy0)

	if [ -z "$lldummy" ]; then
		echo "Failed to get linklocal address for dummy0"
		return 1
	fi
	if [ -z "$llv1" ]; then
		echo "Failed to get linklocal address for veth1"
		return 1
	fi

	echo
	echo "IPv6 nexthop tests"

	add_rt "Directly connected nexthop, unicast address" 0 \
		- 2001:db8:101::/64 2001:db8:1::2
	add_rt "Directly connected nexthop, unicast address with device" 0 \
		- 2001:db8:102::/64 2001:db8:1::2 "dummy0"
	add_rt "Gateway is linklocal address" 0 \
		- 2001:db8:103::1/64 $llv1 "veth0"

	# fails because LL address requires a device
	add_rt "Gateway is linklocal address, no device" 2 \
		- 2001:db8:104::1/64 $llv1

	# local address can not be a gateway
	add_rt "Gateway can not be local unicast address" 2 \
		- 2001:db8:105::/64 2001:db8:1::1
	add_rt "Gateway can not be local unicast address, with device" 2 \
		- 2001:db8:106::/64 2001:db8:1::1 "dummy0"
	add_rt "Gateway can not be a local linklocal address" 2 \
		- 2001:db8:107::1/64 $lldummy "dummy0"

	# VRF tests
	add_rt "Gateway can be local address in a VRF" 0 \
		- 2001:db8:108::/64 2001:db8:51::2
	add_rt "Gateway can be local address in a VRF, with device" 0 \
		- 2001:db8:109::/64 2001:db8:51::2 "veth0"
	add_rt "Gateway can be local linklocal address in a VRF" 0 \
		- 2001:db8:110::1/64 $llv1 "veth0"

	add_rt "Redirect to VRF lookup" 0 \
		- 2001:db8:111::/64 "" "red"

	add_rt "VRF route, gateway can be local address in default VRF" 0 \
		red 2001:db8:112::/64 2001:db8:51::1

	# local address in same VRF fails
	add_rt "VRF route, gateway can not be a local address" 2 \
		red 2001:db8:113::1/64 2001:db8:2::1
	add_rt "VRF route, gateway can not be a local addr with device" 2 \
		red 2001:db8:114::1/64 2001:db8:2::1 "dummy1"
}

# Default VRF:
#   dummy0 - 198.51.100.1/24 2001:db8:1::1/64
#   veth0  - 192.0.2.1/24    2001:db8:51::1/64
#
# VRF red:
#   dummy1 - 192.168.2.1/24 2001:db8:2::1/64
#   veth1  - 192.0.2.2/24   2001:db8:51::2/64
#
#  [ dummy0   veth0 ]--[ veth1   dummy1 ]

fib_nexthop_test()
{
	setup

	set -e

	$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

	$IP link add red type vrf table 1
	$IP link set red up
	$IP -4 route add vrf red unreachable default metric 4278198272
	$IP -6 route add vrf red unreachable default metric 4278198272

	$IP link add veth0 type veth peer name veth1
	$IP link set dev veth0 up
	$IP address add 192.0.2.1/24 dev veth0
	$IP -6 address add 2001:db8:51::1/64 dev veth0

	$IP link set dev veth1 vrf red up
	$IP address add 192.0.2.2/24 dev veth1
	$IP -6 address add 2001:db8:51::2/64 dev veth1

	$IP link add dummy1 type dummy
	$IP link set dev dummy1 vrf red up
	$IP address add 192.168.2.1/24 dev dummy1
	$IP -6 address add 2001:db8:2::1/64 dev dummy1
	set +e

	sleep 1
	fib4_nexthop
	fib6_nexthop

	(
	$IP link del dev dummy1
	$IP link del veth0
	$IP link del red
	) 2>/dev/null
	cleanup
}

fib_suppress_test()
{
	echo
	echo "FIB rule with suppress_prefixlength"
	setup

	$IP link add dummy1 type dummy
	$IP link set dummy1 up
	$IP -6 route add default dev dummy1
	$IP -6 rule add table main suppress_prefixlength 0
	ping -f -c 1000 -W 1 1234::1 >/dev/null 2>&1
	$IP -6 rule del table main suppress_prefixlength 0
	$IP link del dummy1

	# If we got here without crashing, we're good.
	log_test 0 0 "FIB rule suppress test"

	cleanup
}

################################################################################
# Tests on route add and replace

run_cmd()
{
	local cmd="$1"
	local out
	local stderr="2>/dev/null"

	if [ "$VERBOSE" = "1" ]; then
		printf "    COMMAND: $cmd\n"
		stderr=
	fi

	out=$(eval $cmd $stderr)
	rc=$?
	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
		echo "    $out"
	fi

	[ "$VERBOSE" = "1" ] && echo

	return $rc
}

check_expected()
{
	local out="$1"
	local expected="$2"
	local rc=0

	[ "${out}" = "${expected}" ] && return 0

	if [ -z "${out}" ]; then
		if [ "$VERBOSE" = "1" ]; then
			printf "\nNo route entry found\n"
			printf "Expected:\n"
			printf "    ${expected}\n"
		fi
		return 1
	fi

	# tricky way to convert output to 1-line without ip's
	# messy '\'; this drops all extra white space
	out=$(echo ${out})
	if [ "${out}" != "${expected}" ]; then
		rc=1
		if [ "${VERBOSE}" = "1" ]; then
			printf "    Unexpected route entry. Have:\n"
			printf "        ${out}\n"
			printf "    Expected:\n"
			printf "        ${expected}\n\n"
		fi
	fi

	return $rc
}

# add route for a prefix, flushing any existing routes first
# expected to be the first step of a test
add_route6()
{
	local pfx="$1"
	local nh="$2"
	local out

	if [ "$VERBOSE" = "1" ]; then
		echo
		echo "    ##################################################"
		echo
	fi

	run_cmd "$IP -6 ro flush ${pfx}"
	[ $? -ne 0 ] && exit 1

	out=$($IP -6 ro ls match ${pfx})
	if [ -n "$out" ]; then
		echo "Failed to flush routes for prefix used for tests."
		exit 1
	fi

	run_cmd "$IP -6 ro add ${pfx} ${nh}"
	if [ $? -ne 0 ]; then
		echo "Failed to add initial route for test."
		exit 1
	fi
}

# add initial route - used in replace route tests
add_initial_route6()
{
	add_route6 "2001:db8:104::/64" "$1"
}

check_route6()
{
	local pfx
	local expected="$1"
	local out
	local rc=0

	set -- $expected
	pfx=$1

	out=$($IP -6 ro ls match ${pfx} | sed -e 's/ pref medium//')
	check_expected "${out}" "${expected}"
}

route_cleanup()
{
	$IP li del red 2>/dev/null
	$IP li del dummy1 2>/dev/null
	$IP li del veth1 2>/dev/null
	$IP li del veth3 2>/dev/null

	cleanup &> /dev/null
}

route_setup()
{
	route_cleanup
	setup

	[ "${VERBOSE}" = "1" ] && set -x
	set -e

	ip netns add ns2
	ip netns set ns2 auto
	ip -netns ns2 link set dev lo up
	ip netns exec ns2 sysctl -qw net.ipv4.ip_forward=1
	ip netns exec ns2 sysctl -qw net.ipv6.conf.all.forwarding=1

	$IP li add veth1 type veth peer name veth2
	$IP li add veth3 type veth peer name veth4

	$IP li set veth1 up
	$IP li set veth3 up
	$IP li set veth2 netns ns2 up
	$IP li set veth4 netns ns2 up
	ip -netns ns2 li add dummy1 type dummy
	ip -netns ns2 li set dummy1 up

	$IP -6 addr add 2001:db8:101::1/64 dev veth1 nodad
	$IP -6 addr add 2001:db8:103::1/64 dev veth3 nodad
	$IP addr add 172.16.101.1/24 dev veth1
	$IP addr add 172.16.103.1/24 dev veth3

	ip -netns ns2 -6 addr add 2001:db8:101::2/64 dev veth2 nodad
	ip -netns ns2 -6 addr add 2001:db8:103::2/64 dev veth4 nodad
	ip -netns ns2 -6 addr add 2001:db8:104::1/64 dev dummy1 nodad

	ip -netns ns2 addr add 172.16.101.2/24 dev veth2
	ip -netns ns2 addr add 172.16.103.2/24 dev veth4
	ip -netns ns2 addr add 172.16.104.1/24 dev dummy1

	set +e
}

# assumption is that basic add of a single path route works
# otherwise just adding an address on an interface is broken
ipv6_rt_add()
{
	local rc

	echo
	echo "IPv6 route add / append tests"

	# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
	add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
	run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2"
	log_test $? 2 "Attempt to add duplicate route - gw"

	# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
	add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
	run_cmd "$IP -6 ro add 2001:db8:104::/64 dev veth3"
	log_test $? 2 "Attempt to add duplicate route - dev only"

	# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
	add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
	run_cmd "$IP -6 ro add unreachable 2001:db8:104::/64"
	log_test $? 2 "Attempt to add duplicate route - reject route"

	# route append with same prefix adds a new route
	# - iproute2 sets NLM_F_CREATE | NLM_F_APPEND
	add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
	run_cmd "$IP -6 ro append 2001:db8:104::/64 via 2001:db8:103::2"
	check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
	log_test $? 0 "Append nexthop to existing route - gw"

	# insert mpath directly
	add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
	check_route6  "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
	log_test $? 0 "Add multipath route"

	add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
	run_cmd "$IP -6 ro add 2001:db8:104::/64 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
	log_test $? 2 "Attempt to add duplicate multipath route"

	# insert of a second route without append but different metric
	add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
	run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2 metric 512"
	rc=$?
	if [ $rc -eq 0 ]; then
		run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::3 metric 256"
		rc=$?
	fi
	log_test $rc 0 "Route add with different metrics"

	run_cmd "$IP -6 ro del 2001:db8:104::/64 metric 512"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route6 "2001:db8:104::/64 via 2001:db8:103::3 dev veth3 metric 256 2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024"
		rc=$?
	fi
	log_test $rc 0 "Route delete with metric"
}

ipv6_rt_replace_single()
{
	# single path with single path
	#
	add_initial_route6 "via 2001:db8:101::2"
	run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:103::2"
	check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
	log_test $? 0 "Single path with single path"

	# single path with multipath
	#
	add_initial_route6 "nexthop via 2001:db8:101::2"
	run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::2"
	check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
	log_test $? 0 "Single path with multipath"

	# single path with single path using MULTIPATH attribute
	#
	add_initial_route6 "via 2001:db8:101::2"
	run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:103::2"
	check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
	log_test $? 0 "Single path with single path via multipath attribute"

	# route replace fails - invalid nexthop
	add_initial_route6 "via 2001:db8:101::2"
	run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:104::2"
	if [ $? -eq 0 ]; then
		# previous command is expected to fail so if it returns 0
		# that means the test failed.
		log_test 0 1 "Invalid nexthop"
	else
		check_route6 "2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024"
		log_test $? 0 "Invalid nexthop"
	fi

	# replace non-existent route
	# - note use of change versus replace since ip adds NLM_F_CREATE
	#   for replace
	add_initial_route6 "via 2001:db8:101::2"
	run_cmd "$IP -6 ro change 2001:db8:105::/64 via 2001:db8:101::2"
	log_test $? 2 "Single path - replace of non-existent route"
}

ipv6_rt_replace_mpath()
{
	# multipath with multipath
	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
	run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3"
	check_route6  "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::3 dev veth3 weight 1"
	log_test $? 0 "Multipath with multipath"

	# multipath with single
	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
	run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:101::3"
	check_route6  "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024"
	log_test $? 0 "Multipath with single path"

	# multipath with single
	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
	run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3"
	check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024"
	log_test $? 0 "Multipath with single path via multipath attribute"

	# multipath with dev-only
	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
	run_cmd "$IP -6 ro replace 2001:db8:104::/64 dev veth1"
	check_route6 "2001:db8:104::/64 dev veth1 metric 1024"
	log_test $? 0 "Multipath with dev-only"

	# route replace fails - invalid nexthop 1
	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
	run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:111::3 nexthop via 2001:db8:103::3"
	check_route6  "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
	log_test $? 0 "Multipath - invalid first nexthop"

	# route replace fails - invalid nexthop 2
	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
	run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:113::3"
	check_route6  "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
	log_test $? 0 "Multipath - invalid second nexthop"

	# multipath non-existent route
	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
	run_cmd "$IP -6 ro change 2001:db8:105::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3"
	log_test $? 2 "Multipath - replace of non-existent route"
}

ipv6_rt_replace()
{
	echo
	echo "IPv6 route replace tests"

	ipv6_rt_replace_single
	ipv6_rt_replace_mpath
}

ipv6_route_test()
{
	route_setup

	ipv6_rt_add
	ipv6_rt_replace

	route_cleanup
}

ip_addr_metric_check()
{
	ip addr help 2>&1 | grep -q metric
	if [ $? -ne 0 ]; then
		echo "iproute2 command does not support metric for addresses. Skipping test"
		return 1
	fi

	return 0
}

ipv6_addr_metric_test()
{
	local rc

	echo
	echo "IPv6 prefix route tests"

	ip_addr_metric_check || return 1

	setup

	set -e
	$IP li add dummy1 type dummy
	$IP li add dummy2 type dummy
	$IP li set dummy1 up
	$IP li set dummy2 up

	# default entry is metric 256
	run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64"
	run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64"
	set +e

	check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 256 2001:db8:104::/64 dev dummy2 proto kernel metric 256"
	log_test $? 0 "Default metric"

	set -e
	run_cmd "$IP -6 addr flush dev dummy1"
	run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64 metric 257"
	set +e

	check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 256 2001:db8:104::/64 dev dummy1 proto kernel metric 257"
	log_test $? 0 "User specified metric on first device"

	set -e
	run_cmd "$IP -6 addr flush dev dummy2"
	run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64 metric 258"
	set +e

	check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 257 2001:db8:104::/64 dev dummy2 proto kernel metric 258"
	log_test $? 0 "User specified metric on second device"

	run_cmd "$IP -6 addr del dev dummy1 2001:db8:104::1/64 metric 257"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 258"
		rc=$?
	fi
	log_test $rc 0 "Delete of address on first device"

	run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::2/64 metric 259"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259"
		rc=$?
	fi
	log_test $rc 0 "Modify metric of address"

	# verify prefix route removed on down
	run_cmd "ip netns exec ns1 sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1"
	run_cmd "$IP li set dev dummy2 down"
	rc=$?
	if [ $rc -eq 0 ]; then
		out=$($IP -6 ro ls match 2001:db8:104::/64)
		check_expected "${out}" ""
		rc=$?
	fi
	log_test $rc 0 "Prefix route removed on link down"

	# verify prefix route re-inserted with assigned metric
	run_cmd "$IP li set dev dummy2 up"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259"
		rc=$?
	fi
	log_test $rc 0 "Prefix route with metric on link up"

	# verify peer metric added correctly
	set -e
	run_cmd "$IP -6 addr flush dev dummy2"
	run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::1 peer 2001:db8:104::2 metric 260"
	set +e

	check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 260"
	log_test $? 0 "Set metric with peer route on local side"
	check_route6 "2001:db8:104::2 dev dummy2 proto kernel metric 260"
	log_test $? 0 "Set metric with peer route on peer side"

	set -e
	run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::1 peer 2001:db8:104::3 metric 261"
	set +e

	check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 261"
	log_test $? 0 "Modify metric and peer address on local side"
	check_route6 "2001:db8:104::3 dev dummy2 proto kernel metric 261"
	log_test $? 0 "Modify metric and peer address on peer side"

	$IP li del dummy1
	$IP li del dummy2
	cleanup
}

ipv6_route_metrics_test()
{
	local rc

	echo
	echo "IPv6 routes with metrics"

	route_setup

	#
	# single path with metrics
	#
	run_cmd "$IP -6 ro add 2001:db8:111::/64 via 2001:db8:101::2 mtu 1400"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route6  "2001:db8:111::/64 via 2001:db8:101::2 dev veth1 metric 1024 mtu 1400"
		rc=$?
	fi
	log_test $rc 0 "Single path route with mtu metric"


	#
	# multipath via separate routes with metrics
	#
	run_cmd "$IP -6 ro add 2001:db8:112::/64 via 2001:db8:101::2 mtu 1400"
	run_cmd "$IP -6 ro append 2001:db8:112::/64 via 2001:db8:103::2"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route6 "2001:db8:112::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
		rc=$?
	fi
	log_test $rc 0 "Multipath route via 2 single routes with mtu metric on first"

	# second route is coalesced to first to make a multipath route.
	# MTU of the second path is hidden from display!
	run_cmd "$IP -6 ro add 2001:db8:113::/64 via 2001:db8:101::2"
	run_cmd "$IP -6 ro append 2001:db8:113::/64 via 2001:db8:103::2 mtu 1400"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route6 "2001:db8:113::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
		rc=$?
	fi
	log_test $rc 0 "Multipath route via 2 single routes with mtu metric on 2nd"

	run_cmd "$IP -6 ro del 2001:db8:113::/64 via 2001:db8:101::2"
	if [ $? -eq 0 ]; then
		check_route6 "2001:db8:113::/64 via 2001:db8:103::2 dev veth3 metric 1024 mtu 1400"
		log_test $? 0 "    MTU of second leg"
	fi

	#
	# multipath with metrics
	#
	run_cmd "$IP -6 ro add 2001:db8:115::/64 mtu 1400 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route6  "2001:db8:115::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
		rc=$?
	fi
	log_test $rc 0 "Multipath route with mtu metric"

	$IP -6 ro add 2001:db8:104::/64 via 2001:db8:101::2 mtu 1300
	run_cmd "ip netns exec ns1 ${ping6} -w1 -c1 -s 1500 2001:db8:104::1"
	log_test $? 0 "Using route with mtu metric"

	run_cmd "$IP -6 ro add 2001:db8:114::/64 via  2001:db8:101::2  congctl lock foo"
	log_test $? 2 "Invalid metric (fails metric_convert)"

	route_cleanup
}

# add route for a prefix, flushing any existing routes first
# expected to be the first step of a test
add_route()
{
	local pfx="$1"
	local nh="$2"
	local out

	if [ "$VERBOSE" = "1" ]; then
		echo
		echo "    ##################################################"
		echo
	fi

	run_cmd "$IP ro flush ${pfx}"
	[ $? -ne 0 ] && exit 1

	out=$($IP ro ls match ${pfx})
	if [ -n "$out" ]; then
		echo "Failed to flush routes for prefix used for tests."
		exit 1
	fi

	run_cmd "$IP ro add ${pfx} ${nh}"
	if [ $? -ne 0 ]; then
		echo "Failed to add initial route for test."
		exit 1
	fi
}

# add initial route - used in replace route tests
add_initial_route()
{
	add_route "172.16.104.0/24" "$1"
}

check_route()
{
	local pfx
	local expected="$1"
	local out

	set -- $expected
	pfx=$1
	[ "${pfx}" = "unreachable" ] && pfx=$2

	out=$($IP ro ls match ${pfx})
	check_expected "${out}" "${expected}"
}

# assumption is that basic add of a single path route works
# otherwise just adding an address on an interface is broken
ipv4_rt_add()
{
	local rc

	echo
	echo "IPv4 route add / append tests"

	# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
	add_route "172.16.104.0/24" "via 172.16.101.2"
	run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2"
	log_test $? 2 "Attempt to add duplicate route - gw"

	# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
	add_route "172.16.104.0/24" "via 172.16.101.2"
	run_cmd "$IP ro add 172.16.104.0/24 dev veth3"
	log_test $? 2 "Attempt to add duplicate route - dev only"

	# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
	add_route "172.16.104.0/24" "via 172.16.101.2"
	run_cmd "$IP ro add unreachable 172.16.104.0/24"
	log_test $? 2 "Attempt to add duplicate route - reject route"

	# iproute2 prepend only sets NLM_F_CREATE
	# - adds a new route; does NOT convert existing route to ECMP
	add_route "172.16.104.0/24" "via 172.16.101.2"
	run_cmd "$IP ro prepend 172.16.104.0/24 via 172.16.103.2"
	check_route "172.16.104.0/24 via 172.16.103.2 dev veth3 172.16.104.0/24 via 172.16.101.2 dev veth1"
	log_test $? 0 "Add new nexthop for existing prefix"

	# route append with same prefix adds a new route
	# - iproute2 sets NLM_F_CREATE | NLM_F_APPEND
	add_route "172.16.104.0/24" "via 172.16.101.2"
	run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2"
	check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 via 172.16.103.2 dev veth3"
	log_test $? 0 "Append nexthop to existing route - gw"

	add_route "172.16.104.0/24" "via 172.16.101.2"
	run_cmd "$IP ro append 172.16.104.0/24 dev veth3"
	check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 dev veth3 scope link"
	log_test $? 0 "Append nexthop to existing route - dev only"

	add_route "172.16.104.0/24" "via 172.16.101.2"
	run_cmd "$IP ro append unreachable 172.16.104.0/24"
	check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 unreachable 172.16.104.0/24"
	log_test $? 0 "Append nexthop to existing route - reject route"

	run_cmd "$IP ro flush 172.16.104.0/24"
	run_cmd "$IP ro add unreachable 172.16.104.0/24"
	run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2"
	check_route "unreachable 172.16.104.0/24 172.16.104.0/24 via 172.16.103.2 dev veth3"
	log_test $? 0 "Append nexthop to existing reject route - gw"

	run_cmd "$IP ro flush 172.16.104.0/24"
	run_cmd "$IP ro add unreachable 172.16.104.0/24"
	run_cmd "$IP ro append 172.16.104.0/24 dev veth3"
	check_route "unreachable 172.16.104.0/24 172.16.104.0/24 dev veth3 scope link"
	log_test $? 0 "Append nexthop to existing reject route - dev only"

	# insert mpath directly
	add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
	check_route  "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
	log_test $? 0 "add multipath route"

	add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
	run_cmd "$IP ro add 172.16.104.0/24 nexthop via 172.16.101.2 nexthop via 172.16.103.2"
	log_test $? 2 "Attempt to add duplicate multipath route"

	# insert of a second route without append but different metric
	add_route "172.16.104.0/24" "via 172.16.101.2"
	run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2 metric 512"
	rc=$?
	if [ $rc -eq 0 ]; then
		run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.3 metric 256"
		rc=$?
	fi
	log_test $rc 0 "Route add with different metrics"

	run_cmd "$IP ro del 172.16.104.0/24 metric 512"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 via 172.16.103.3 dev veth3 metric 256"
		rc=$?
	fi
	log_test $rc 0 "Route delete with metric"
}

ipv4_rt_replace_single()
{
	# single path with single path
	#
	add_initial_route "via 172.16.101.2"
	run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.103.2"
	check_route "172.16.104.0/24 via 172.16.103.2 dev veth3"
	log_test $? 0 "Single path with single path"

	# single path with multipath
	#
	add_initial_route "nexthop via 172.16.101.2"
	run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.2"
	check_route "172.16.104.0/24 nexthop via 172.16.101.3 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
	log_test $? 0 "Single path with multipath"

	# single path with reject
	#
	add_initial_route "nexthop via 172.16.101.2"
	run_cmd "$IP ro replace unreachable 172.16.104.0/24"
	check_route "unreachable 172.16.104.0/24"
	log_test $? 0 "Single path with reject route"

	# single path with single path using MULTIPATH attribute
	#
	add_initial_route "via 172.16.101.2"
	run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.103.2"
	check_route "172.16.104.0/24 via 172.16.103.2 dev veth3"
	log_test $? 0 "Single path with single path via multipath attribute"

	# route replace fails - invalid nexthop
	add_initial_route "via 172.16.101.2"
	run_cmd "$IP ro replace 172.16.104.0/24 via 2001:db8:104::2"
	if [ $? -eq 0 ]; then
		# previous command is expected to fail so if it returns 0
		# that means the test failed.
		log_test 0 1 "Invalid nexthop"
	else
		check_route "172.16.104.0/24 via 172.16.101.2 dev veth1"
		log_test $? 0 "Invalid nexthop"
	fi

	# replace non-existent route
	# - note use of change versus replace since ip adds NLM_F_CREATE
	#   for replace
	add_initial_route "via 172.16.101.2"
	run_cmd "$IP ro change 172.16.105.0/24 via 172.16.101.2"
	log_test $? 2 "Single path - replace of non-existent route"
}

ipv4_rt_replace_mpath()
{
	# multipath with multipath
	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
	run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3"
	check_route  "172.16.104.0/24 nexthop via 172.16.101.3 dev veth1 weight 1 nexthop via 172.16.103.3 dev veth3 weight 1"
	log_test $? 0 "Multipath with multipath"

	# multipath with single
	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
	run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.101.3"
	check_route  "172.16.104.0/24 via 172.16.101.3 dev veth1"
	log_test $? 0 "Multipath with single path"

	# multipath with single
	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
	run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3"
	check_route "172.16.104.0/24 via 172.16.101.3 dev veth1"
	log_test $? 0 "Multipath with single path via multipath attribute"

	# multipath with reject
	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
	run_cmd "$IP ro replace unreachable 172.16.104.0/24"
	check_route "unreachable 172.16.104.0/24"
	log_test $? 0 "Multipath with reject route"

	# route replace fails - invalid nexthop 1
	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
	run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.111.3 nexthop via 172.16.103.3"
	check_route  "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
	log_test $? 0 "Multipath - invalid first nexthop"

	# route replace fails - invalid nexthop 2
	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
	run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.113.3"
	check_route  "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
	log_test $? 0 "Multipath - invalid second nexthop"

	# multipath non-existent route
	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
	run_cmd "$IP ro change 172.16.105.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3"
	log_test $? 2 "Multipath - replace of non-existent route"
}

ipv4_rt_replace()
{
	echo
	echo "IPv4 route replace tests"

	ipv4_rt_replace_single
	ipv4_rt_replace_mpath
}

ipv4_route_test()
{
	route_setup

	ipv4_rt_add
	ipv4_rt_replace

	route_cleanup
}

ipv4_addr_metric_test()
{
	local rc

	echo
	echo "IPv4 prefix route tests"

	ip_addr_metric_check || return 1

	setup

	set -e
	$IP li add dummy1 type dummy
	$IP li add dummy2 type dummy
	$IP li set dummy1 up
	$IP li set dummy2 up

	# default entry is metric 256
	run_cmd "$IP addr add dev dummy1 172.16.104.1/24"
	run_cmd "$IP addr add dev dummy2 172.16.104.2/24"
	set +e

	check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2"
	log_test $? 0 "Default metric"

	set -e
	run_cmd "$IP addr flush dev dummy1"
	run_cmd "$IP addr add dev dummy1 172.16.104.1/24 metric 257"
	set +e

	check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257"
	log_test $? 0 "User specified metric on first device"

	set -e
	run_cmd "$IP addr flush dev dummy2"
	run_cmd "$IP addr add dev dummy2 172.16.104.2/24 metric 258"
	set +e

	check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258"
	log_test $? 0 "User specified metric on second device"

	run_cmd "$IP addr del dev dummy1 172.16.104.1/24 metric 257"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258"
		rc=$?
	fi
	log_test $rc 0 "Delete of address on first device"

	run_cmd "$IP addr change dev dummy2 172.16.104.2/24 metric 259"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259"
		rc=$?
	fi
	log_test $rc 0 "Modify metric of address"

	# verify prefix route removed on down
	run_cmd "$IP li set dev dummy2 down"
	rc=$?
	if [ $rc -eq 0 ]; then
		out=$($IP ro ls match 172.16.104.0/24)
		check_expected "${out}" ""
		rc=$?
	fi
	log_test $rc 0 "Prefix route removed on link down"

	# verify prefix route re-inserted with assigned metric
	run_cmd "$IP li set dev dummy2 up"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259"
		rc=$?
	fi
	log_test $rc 0 "Prefix route with metric on link up"

	# explicitly check for metric changes on edge scenarios
	run_cmd "$IP addr flush dev dummy2"
	run_cmd "$IP addr add dev dummy2 172.16.104.0/24 metric 259"
	run_cmd "$IP addr change dev dummy2 172.16.104.0/24 metric 260"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.0 metric 260"
		rc=$?
	fi
	log_test $rc 0 "Modify metric of .0/24 address"

	run_cmd "$IP addr flush dev dummy2"
	run_cmd "$IP addr add dev dummy2 172.16.104.1/32 peer 172.16.104.2 metric 260"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route "172.16.104.2 dev dummy2 proto kernel scope link src 172.16.104.1 metric 260"
		rc=$?
	fi
	log_test $rc 0 "Set metric of address with peer route"

	run_cmd "$IP addr change dev dummy2 172.16.104.1/32 peer 172.16.104.3 metric 261"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route "172.16.104.3 dev dummy2 proto kernel scope link src 172.16.104.1 metric 261"
		rc=$?
	fi
	log_test $rc 0 "Modify metric and peer address for peer route"

	$IP li del dummy1
	$IP li del dummy2
	cleanup
}

ipv4_route_metrics_test()
{
	local rc

	echo
	echo "IPv4 route add / append tests"

	route_setup

	run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 mtu 1400"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route "172.16.111.0/24 via 172.16.101.2 dev veth1 mtu 1400"
		rc=$?
	fi
	log_test $rc 0 "Single path route with mtu metric"


	run_cmd "$IP ro add 172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 nexthop via 172.16.103.2"
	rc=$?
	if [ $rc -eq 0 ]; then
		check_route "172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
		rc=$?
	fi
	log_test $rc 0 "Multipath route with mtu metric"

	$IP ro add 172.16.104.0/24 via 172.16.101.2 mtu 1300
	run_cmd "ip netns exec ns1 ping -w1 -c1 -s 1500 172.16.104.1"
	log_test $? 0 "Using route with mtu metric"

	run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 congctl lock foo"
	log_test $? 2 "Invalid metric (fails metric_convert)"

	route_cleanup
}

ipv4_del_addr_test()
{
	echo
	echo "IPv4 delete address route tests"

	setup

	set -e
	$IP li add dummy1 type dummy
	$IP li set dummy1 up
	$IP li add dummy2 type dummy
	$IP li set dummy2 up
	$IP li add red type vrf table 1111
	$IP li set red up
	$IP ro add vrf red unreachable default
	$IP li set dummy2 vrf red

	$IP addr add dev dummy1 172.16.104.1/24
	$IP addr add dev dummy1 172.16.104.11/24
	$IP addr add dev dummy2 172.16.104.1/24
	$IP addr add dev dummy2 172.16.104.11/24
	$IP route add 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11
	$IP route add vrf red 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11
	set +e

	# removing address from device in vrf should only remove route from vrf table
	$IP addr del dev dummy2 172.16.104.11/24
	$IP ro ls vrf red | grep -q 172.16.105.0/24
	log_test $? 1 "Route removed from VRF when source address deleted"

	$IP ro ls | grep -q 172.16.105.0/24
	log_test $? 0 "Route in default VRF not removed"

	$IP addr add dev dummy2 172.16.104.11/24
	$IP route add vrf red 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11

	$IP addr del dev dummy1 172.16.104.11/24
	$IP ro ls | grep -q 172.16.105.0/24
	log_test $? 1 "Route removed in default VRF when source address deleted"

	$IP ro ls vrf red | grep -q 172.16.105.0/24
	log_test $? 0 "Route in VRF is not removed by address delete"

	$IP li del dummy1
	$IP li del dummy2
	cleanup
}


ipv4_route_v6_gw_test()
{
	local rc

	echo
	echo "IPv4 route with IPv6 gateway tests"

	route_setup
	sleep 2

	#
	# single path route
	#
	run_cmd "$IP ro add 172.16.104.0/24 via inet6 2001:db8:101::2"
	rc=$?
	log_test $rc 0 "Single path route with IPv6 gateway"
	if [ $rc -eq 0 ]; then
		check_route "172.16.104.0/24 via inet6 2001:db8:101::2 dev veth1"
	fi

	run_cmd "ip netns exec ns1 ping -w1 -c1 172.16.104.1"
	log_test $rc 0 "Single path route with IPv6 gateway - ping"

	run_cmd "$IP ro del 172.16.104.0/24 via inet6 2001:db8:101::2"
	rc=$?
	log_test $rc 0 "Single path route delete"
	if [ $rc -eq 0 ]; then
		check_route "172.16.112.0/24"
	fi

	#
	# multipath - v6 then v4
	#
	run_cmd "$IP ro add 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
	rc=$?
	log_test $rc 0 "Multipath route add - v6 nexthop then v4"
	if [ $rc -eq 0 ]; then
		check_route "172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
	fi

	run_cmd "$IP ro del 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
	log_test $? 2 "    Multipath route delete - nexthops in wrong order"

	run_cmd "$IP ro del 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
	log_test $? 0 "    Multipath route delete exact match"

	#
	# multipath - v4 then v6
	#
	run_cmd "$IP ro add 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
	rc=$?
	log_test $rc 0 "Multipath route add - v4 nexthop then v6"
	if [ $rc -eq 0 ]; then
		check_route "172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 weight 1 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1"
	fi

	run_cmd "$IP ro del 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
	log_test $? 2 "    Multipath route delete - nexthops in wrong order"

	run_cmd "$IP ro del 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
	log_test $? 0 "    Multipath route delete exact match"

	route_cleanup
}

################################################################################
# usage

usage()
{
	cat <<EOF
usage: ${0##*/} OPTS

        -t <test>   Test(s) to run (default: all)
                    (options: $TESTS)
        -p          Pause on fail
        -P          Pause after each test before cleanup
        -v          verbose mode (show commands and output)
EOF
}

################################################################################
# main

while getopts :t:pPhv o
do
	case $o in
		t) TESTS=$OPTARG;;
		p) PAUSE_ON_FAIL=yes;;
		P) PAUSE=yes;;
		v) VERBOSE=$(($VERBOSE + 1));;
		h) usage; exit 0;;
		*) usage; exit 1;;
	esac
done

PEER_CMD="ip netns exec ${PEER_NS}"

# make sure we don't pause twice
[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no

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

if [ ! -x "$(command -v ip)" ]; then
	echo "SKIP: Could not run test without ip tool"
	exit $ksft_skip
fi

ip route help 2>&1 | grep -q fibmatch
if [ $? -ne 0 ]; then
	echo "SKIP: iproute2 too old, missing fibmatch"
	exit $ksft_skip
fi

# start clean
cleanup &> /dev/null

for t in $TESTS
do
	case $t in
	fib_unreg_test|unregister)	fib_unreg_test;;
	fib_down_test|down)		fib_down_test;;
	fib_carrier_test|carrier)	fib_carrier_test;;
	fib_rp_filter_test|rp_filter)	fib_rp_filter_test;;
	fib_nexthop_test|nexthop)	fib_nexthop_test;;
	fib_suppress_test|suppress)	fib_suppress_test;;
	ipv6_route_test|ipv6_rt)	ipv6_route_test;;
	ipv4_route_test|ipv4_rt)	ipv4_route_test;;
	ipv6_addr_metric)		ipv6_addr_metric_test;;
	ipv4_addr_metric)		ipv4_addr_metric_test;;
	ipv4_del_addr)			ipv4_del_addr_test;;
	ipv6_route_metrics)		ipv6_route_metrics_test;;
	ipv4_route_metrics)		ipv4_route_metrics_test;;
	ipv4_route_v6_gw)		ipv4_route_v6_gw_test;;

	help) echo "Test names: $TESTS"; exit 0;;
	esac
done

if [ "$TESTS" != "none" ]; then
	printf "\nTests passed: %3d\n" ${nsuccess}
	printf "Tests failed: %3d\n"   ${nfail}
fi

exit $ret