summaryrefslogtreecommitdiffstats
path: root/tools/testing/selftests/bpf/test_tunnel.sh
blob: c4b5fbbaa76035073e4cd5c3b7ac8993434db5b8 (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
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0

# End-to-end eBPF tunnel test suite
#   The script tests BPF network tunnel implementation.
#
# Topology:
# ---------
#     root namespace   |     at_ns0 namespace
#                      |
#      -----------     |     -----------
#      | tnl dev |     |     | tnl dev |  (overlay network)
#      -----------     |     -----------
#      metadata-mode   |     native-mode
#       with bpf       |
#                      |
#      ----------      |     ----------
#      |  veth1  | --------- |  veth0  |  (underlay network)
#      ----------    peer    ----------
#
#
# Device Configuration
# --------------------
# Root namespace with metadata-mode tunnel + BPF
# Device names and addresses:
# 	veth1 IP: 172.16.1.200, IPv6: 00::22 (underlay)
# 	tunnel dev <type>11, ex: gre11, IPv4: 10.1.1.200 (overlay)
#
# Namespace at_ns0 with native tunnel
# Device names and addresses:
# 	veth0 IPv4: 172.16.1.100, IPv6: 00::11 (underlay)
# 	tunnel dev <type>00, ex: gre00, IPv4: 10.1.1.100 (overlay)
#
#
# End-to-end ping packet flow
# ---------------------------
# Most of the tests start by namespace creation, device configuration,
# then ping the underlay and overlay network.  When doing 'ping 10.1.1.100'
# from root namespace, the following operations happen:
# 1) Route lookup shows 10.1.1.100/24 belongs to tnl dev, fwd to tnl dev.
# 2) Tnl device's egress BPF program is triggered and set the tunnel metadata,
#    with remote_ip=172.16.1.200 and others.
# 3) Outer tunnel header is prepended and route the packet to veth1's egress
# 4) veth0's ingress queue receive the tunneled packet at namespace at_ns0
# 5) Tunnel protocol handler, ex: vxlan_rcv, decap the packet
# 6) Forward the packet to the overlay tnl dev

PING_ARG="-c 3 -w 10 -q"
ret=0
GREEN='\033[0;92m'
RED='\033[0;31m'
NC='\033[0m' # No Color

config_device()
{
	ip netns add at_ns0
	ip link add veth0 type veth peer name veth1
	ip link set veth0 netns at_ns0
	ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0
	ip netns exec at_ns0 ip link set dev veth0 up
	ip link set dev veth1 up mtu 1500
	ip addr add dev veth1 172.16.1.200/24
}

add_gre_tunnel()
{
	# at_ns0 namespace
	ip netns exec at_ns0 \
        ip link add dev $DEV_NS type $TYPE seq key 2 \
		local 172.16.1.100 remote 172.16.1.200
	ip netns exec at_ns0 ip link set dev $DEV_NS up
	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24

	# root namespace
	ip link add dev $DEV type $TYPE key 2 external
	ip link set dev $DEV up
	ip addr add dev $DEV 10.1.1.200/24
}

add_ip6gretap_tunnel()
{

	# assign ipv6 address
	ip netns exec at_ns0 ip addr add ::11/96 dev veth0
	ip netns exec at_ns0 ip link set dev veth0 up
	ip addr add dev veth1 ::22/96
	ip link set dev veth1 up

	# at_ns0 namespace
	ip netns exec at_ns0 \
		ip link add dev $DEV_NS type $TYPE seq flowlabel 0xbcdef key 2 \
		local ::11 remote ::22

	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
	ip netns exec at_ns0 ip addr add dev $DEV_NS fc80::100/96
	ip netns exec at_ns0 ip link set dev $DEV_NS up

	# root namespace
	ip link add dev $DEV type $TYPE external
	ip addr add dev $DEV 10.1.1.200/24
	ip addr add dev $DEV fc80::200/24
	ip link set dev $DEV up
}

add_erspan_tunnel()
{
	# at_ns0 namespace
	if [ "$1" == "v1" ]; then
		ip netns exec at_ns0 \
		ip link add dev $DEV_NS type $TYPE seq key 2 \
		local 172.16.1.100 remote 172.16.1.200 \
		erspan_ver 1 erspan 123
	else
		ip netns exec at_ns0 \
		ip link add dev $DEV_NS type $TYPE seq key 2 \
		local 172.16.1.100 remote 172.16.1.200 \
		erspan_ver 2 erspan_dir egress erspan_hwid 3
	fi
	ip netns exec at_ns0 ip link set dev $DEV_NS up
	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24

	# root namespace
	ip link add dev $DEV type $TYPE external
	ip link set dev $DEV up
	ip addr add dev $DEV 10.1.1.200/24
}

add_ip6erspan_tunnel()
{

	# assign ipv6 address
	ip netns exec at_ns0 ip addr add ::11/96 dev veth0
	ip netns exec at_ns0 ip link set dev veth0 up
	ip addr add dev veth1 ::22/96
	ip link set dev veth1 up

	# at_ns0 namespace
	if [ "$1" == "v1" ]; then
		ip netns exec at_ns0 \
		ip link add dev $DEV_NS type $TYPE seq key 2 \
		local ::11 remote ::22 \
		erspan_ver 1 erspan 123
	else
		ip netns exec at_ns0 \
		ip link add dev $DEV_NS type $TYPE seq key 2 \
		local ::11 remote ::22 \
		erspan_ver 2 erspan_dir egress erspan_hwid 7
	fi
	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
	ip netns exec at_ns0 ip link set dev $DEV_NS up

	# root namespace
	ip link add dev $DEV type $TYPE external
	ip addr add dev $DEV 10.1.1.200/24
	ip link set dev $DEV up
}

add_vxlan_tunnel()
{
	# Set static ARP entry here because iptables set-mark works
	# on L3 packet, as a result not applying to ARP packets,
	# causing errors at get_tunnel_{key/opt}.

	# at_ns0 namespace
	ip netns exec at_ns0 \
		ip link add dev $DEV_NS type $TYPE \
		id 2 dstport 4789 gbp remote 172.16.1.200
	ip netns exec at_ns0 \
		ip link set dev $DEV_NS address 52:54:00:d9:01:00 up
	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
	ip netns exec at_ns0 arp -s 10.1.1.200 52:54:00:d9:02:00
	ip netns exec at_ns0 iptables -A OUTPUT -j MARK --set-mark 0x800FF

	# root namespace
	ip link add dev $DEV type $TYPE external gbp dstport 4789
	ip link set dev $DEV address 52:54:00:d9:02:00 up
	ip addr add dev $DEV 10.1.1.200/24
	arp -s 10.1.1.100 52:54:00:d9:01:00
}

add_ip6vxlan_tunnel()
{
	#ip netns exec at_ns0 ip -4 addr del 172.16.1.100 dev veth0
	ip netns exec at_ns0 ip -6 addr add ::11/96 dev veth0
	ip netns exec at_ns0 ip link set dev veth0 up
	#ip -4 addr del 172.16.1.200 dev veth1
	ip -6 addr add dev veth1 ::22/96
	ip link set dev veth1 up

	# at_ns0 namespace
	ip netns exec at_ns0 \
		ip link add dev $DEV_NS type $TYPE id 22 dstport 4789 \
		local ::11 remote ::22
	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
	ip netns exec at_ns0 ip link set dev $DEV_NS up

	# root namespace
	ip link add dev $DEV type $TYPE external dstport 4789
	ip addr add dev $DEV 10.1.1.200/24
	ip link set dev $DEV up
}

add_geneve_tunnel()
{
	# at_ns0 namespace
	ip netns exec at_ns0 \
		ip link add dev $DEV_NS type $TYPE \
		id 2 dstport 6081 remote 172.16.1.200
	ip netns exec at_ns0 ip link set dev $DEV_NS up
	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24

	# root namespace
	ip link add dev $DEV type $TYPE dstport 6081 external
	ip link set dev $DEV up
	ip addr add dev $DEV 10.1.1.200/24
}

add_ip6geneve_tunnel()
{
	ip netns exec at_ns0 ip addr add ::11/96 dev veth0
	ip netns exec at_ns0 ip link set dev veth0 up
	ip addr add dev veth1 ::22/96
	ip link set dev veth1 up

	# at_ns0 namespace
	ip netns exec at_ns0 \
		ip link add dev $DEV_NS type $TYPE id 22 \
		remote ::22     # geneve has no local option
	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
	ip netns exec at_ns0 ip link set dev $DEV_NS up

	# root namespace
	ip link add dev $DEV type $TYPE external
	ip addr add dev $DEV 10.1.1.200/24
	ip link set dev $DEV up
}

add_ipip_tunnel()
{
	# at_ns0 namespace
	ip netns exec at_ns0 \
		ip link add dev $DEV_NS type $TYPE \
		local 172.16.1.100 remote 172.16.1.200
	ip netns exec at_ns0 ip link set dev $DEV_NS up
	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24

	# root namespace
	ip link add dev $DEV type $TYPE external
	ip link set dev $DEV up
	ip addr add dev $DEV 10.1.1.200/24
}

add_ipip6tnl_tunnel()
{
	ip netns exec at_ns0 ip addr add ::11/96 dev veth0
	ip netns exec at_ns0 ip link set dev veth0 up
	ip addr add dev veth1 ::22/96
	ip link set dev veth1 up

	# at_ns0 namespace
	ip netns exec at_ns0 \
		ip link add dev $DEV_NS type $TYPE \
		local ::11 remote ::22
	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
	ip netns exec at_ns0 ip link set dev $DEV_NS up

	# root namespace
	ip link add dev $DEV type $TYPE external
	ip addr add dev $DEV 10.1.1.200/24
	ip link set dev $DEV up
}

test_gre()
{
	TYPE=gretap
	DEV_NS=gretap00
	DEV=gretap11
	ret=0

	check $TYPE
	config_device
	add_gre_tunnel
	attach_bpf $DEV gre_set_tunnel gre_get_tunnel
	ping $PING_ARG 10.1.1.100
	check_err $?
	ip netns exec at_ns0 ping $PING_ARG 10.1.1.200
	check_err $?
	cleanup

        if [ $ret -ne 0 ]; then
                echo -e ${RED}"FAIL: $TYPE"${NC}
                return 1
        fi
        echo -e ${GREEN}"PASS: $TYPE"${NC}
}

test_ip6gre()
{
	TYPE=ip6gre
	DEV_NS=ip6gre00
	DEV=ip6gre11
	ret=0

	check $TYPE
	config_device
	# reuse the ip6gretap function
	add_ip6gretap_tunnel
	attach_bpf $DEV ip6gretap_set_tunnel ip6gretap_get_tunnel
	# underlay
	ping6 $PING_ARG ::11
	# overlay: ipv4 over ipv6
	ip netns exec at_ns0 ping $PING_ARG 10.1.1.200
	ping $PING_ARG 10.1.1.100
	check_err $?
	# overlay: ipv6 over ipv6
	ip netns exec at_ns0 ping6 $PING_ARG fc80::200
	check_err $?
	cleanup

        if [ $ret -ne 0 ]; then
                echo -e ${RED}"FAIL: $TYPE"${NC}
                return 1
        fi
        echo -e ${GREEN}"PASS: $TYPE"${NC}
}

test_ip6gretap()
{
	TYPE=ip6gretap
	DEV_NS=ip6gretap00
	DEV=ip6gretap11
	ret=0

	check $TYPE
	config_device
	add_ip6gretap_tunnel
	attach_bpf $DEV ip6gretap_set_tunnel ip6gretap_get_tunnel
	# underlay
	ping6 $PING_ARG ::11
	# overlay: ipv4 over ipv6
	ip netns exec at_ns0 ping $PING_ARG 10.1.1.200
	ping $PING_ARG 10.1.1.100
	check_err $?
	# overlay: ipv6 over ipv6
	ip netns exec at_ns0 ping6 $PING_ARG fc80::200
	check_err $?
	cleanup

	if [ $ret -ne 0 ]; then
                echo -e ${RED}"FAIL: $TYPE"${NC}
                return 1
        fi
        echo -e ${GREEN}"PASS: $TYPE"${NC}
}

test_erspan()
{
	TYPE=erspan
	DEV_NS=erspan00
	DEV=erspan11
	ret=0

	check $TYPE
	config_device
	add_erspan_tunnel $1
	attach_bpf $DEV erspan_set_tunnel erspan_get_tunnel
	ping $PING_ARG 10.1.1.100
	check_err $?
	ip netns exec at_ns0 ping $PING_ARG 10.1.1.200
	check_err $?
	cleanup

	if [ $ret -ne 0 ]; then
                echo -e ${RED}"FAIL: $TYPE"${NC}
                return 1
        fi
        echo -e ${GREEN}"PASS: $TYPE"${NC}
}

test_ip6erspan()
{
	TYPE=ip6erspan
	DEV_NS=ip6erspan00
	DEV=ip6erspan11
	ret=0

	check $TYPE
	config_device
	add_ip6erspan_tunnel $1
	attach_bpf $DEV ip4ip6erspan_set_tunnel ip4ip6erspan_get_tunnel
	ping6 $PING_ARG ::11
	ip netns exec at_ns0 ping $PING_ARG 10.1.1.200
	check_err $?
	cleanup

	if [ $ret -ne 0 ]; then
                echo -e ${RED}"FAIL: $TYPE"${NC}
                return 1
        fi
        echo -e ${GREEN}"PASS: $TYPE"${NC}
}

test_vxlan()
{
	TYPE=vxlan
	DEV_NS=vxlan00
	DEV=vxlan11
	ret=0

	check $TYPE
	config_device
	add_vxlan_tunnel
	attach_bpf $DEV vxlan_set_tunnel vxlan_get_tunnel
	ping $PING_ARG 10.1.1.100
	check_err $?
	ip netns exec at_ns0 ping $PING_ARG 10.1.1.200
	check_err $?
	cleanup

	if [ $ret -ne 0 ]; then
                echo -e ${RED}"FAIL: $TYPE"${NC}
                return 1
        fi
        echo -e ${GREEN}"PASS: $TYPE"${NC}
}

test_ip6vxlan()
{
	TYPE=vxlan
	DEV_NS=ip6vxlan00
	DEV=ip6vxlan11
	ret=0

	check $TYPE
	config_device
	add_ip6vxlan_tunnel
	ip link set dev veth1 mtu 1500
	attach_bpf $DEV ip6vxlan_set_tunnel ip6vxlan_get_tunnel
	# underlay
	ping6 $PING_ARG ::11
	# ip4 over ip6
	ping $PING_ARG 10.1.1.100
	check_err $?
	ip netns exec at_ns0 ping $PING_ARG 10.1.1.200
	check_err $?
	cleanup

	if [ $ret -ne 0 ]; then
                echo -e ${RED}"FAIL: ip6$TYPE"${NC}
                return 1
        fi
        echo -e ${GREEN}"PASS: ip6$TYPE"${NC}
}

test_geneve()
{
	TYPE=geneve
	DEV_NS=geneve00
	DEV=geneve11
	ret=0

	check $TYPE
	config_device
	add_geneve_tunnel
	attach_bpf $DEV geneve_set_tunnel geneve_get_tunnel
	ping $PING_ARG 10.1.1.100
	check_err $?
	ip netns exec at_ns0 ping $PING_ARG 10.1.1.200
	check_err $?
	cleanup

	if [ $ret -ne 0 ]; then
                echo -e ${RED}"FAIL: $TYPE"${NC}
                return 1
        fi
        echo -e ${GREEN}"PASS: $TYPE"${NC}
}

test_ip6geneve()
{
	TYPE=geneve
	DEV_NS=ip6geneve00
	DEV=ip6geneve11
	ret=0

	check $TYPE
	config_device
	add_ip6geneve_tunnel
	attach_bpf $DEV ip6geneve_set_tunnel ip6geneve_get_tunnel
	ping $PING_ARG 10.1.1.100
	check_err $?
	ip netns exec at_ns0 ping $PING_ARG 10.1.1.200
	check_err $?
	cleanup

	if [ $ret -ne 0 ]; then
                echo -e ${RED}"FAIL: ip6$TYPE"${NC}
                return 1
        fi
        echo -e ${GREEN}"PASS: ip6$TYPE"${NC}
}

test_ipip()
{
	TYPE=ipip
	DEV_NS=ipip00
	DEV=ipip11
	ret=0

	check $TYPE
	config_device
	add_ipip_tunnel
	ip link set dev veth1 mtu 1500
	attach_bpf $DEV ipip_set_tunnel ipip_get_tunnel
	ping $PING_ARG 10.1.1.100
	check_err $?
	ip netns exec at_ns0 ping $PING_ARG 10.1.1.200
	check_err $?
	cleanup

	if [ $ret -ne 0 ]; then
                echo -e ${RED}"FAIL: $TYPE"${NC}
                return 1
        fi
        echo -e ${GREEN}"PASS: $TYPE"${NC}
}

test_ipip6()
{
	TYPE=ip6tnl
	DEV_NS=ipip6tnl00
	DEV=ipip6tnl11
	ret=0

	check $TYPE
	config_device
	add_ipip6tnl_tunnel
	ip link set dev veth1 mtu 1500
	attach_bpf $DEV ipip6_set_tunnel ipip6_get_tunnel
	# underlay
	ping6 $PING_ARG ::11
	# ip4 over ip6
	ping $PING_ARG 10.1.1.100
	check_err $?
	ip netns exec at_ns0 ping $PING_ARG 10.1.1.200
	check_err $?
	cleanup

	if [ $ret -ne 0 ]; then
                echo -e ${RED}"FAIL: $TYPE"${NC}
                return 1
        fi
        echo -e ${GREEN}"PASS: $TYPE"${NC}
}

setup_xfrm_tunnel()
{
	auth=0x$(printf '1%.0s' {1..40})
	enc=0x$(printf '2%.0s' {1..32})
	spi_in_to_out=0x1
	spi_out_to_in=0x2
	# at_ns0 namespace
	# at_ns0 -> root
	ip netns exec at_ns0 \
		ip xfrm state add src 172.16.1.100 dst 172.16.1.200 proto esp \
			spi $spi_in_to_out reqid 1 mode tunnel \
			auth-trunc 'hmac(sha1)' $auth 96 enc 'cbc(aes)' $enc
	ip netns exec at_ns0 \
		ip xfrm policy add src 10.1.1.100/32 dst 10.1.1.200/32 dir out \
		tmpl src 172.16.1.100 dst 172.16.1.200 proto esp reqid 1 \
		mode tunnel
	# root -> at_ns0
	ip netns exec at_ns0 \
		ip xfrm state add src 172.16.1.200 dst 172.16.1.100 proto esp \
			spi $spi_out_to_in reqid 2 mode tunnel \
			auth-trunc 'hmac(sha1)' $auth 96 enc 'cbc(aes)' $enc
	ip netns exec at_ns0 \
		ip xfrm policy add src 10.1.1.200/32 dst 10.1.1.100/32 dir in \
		tmpl src 172.16.1.200 dst 172.16.1.100 proto esp reqid 2 \
		mode tunnel
	# address & route
	ip netns exec at_ns0 \
		ip addr add dev veth0 10.1.1.100/32
	ip netns exec at_ns0 \
		ip route add 10.1.1.200 dev veth0 via 172.16.1.200 \
			src 10.1.1.100

	# root namespace
	# at_ns0 -> root
	ip xfrm state add src 172.16.1.100 dst 172.16.1.200 proto esp \
		spi $spi_in_to_out reqid 1 mode tunnel \
		auth-trunc 'hmac(sha1)' $auth 96  enc 'cbc(aes)' $enc
	ip xfrm policy add src 10.1.1.100/32 dst 10.1.1.200/32 dir in \
		tmpl src 172.16.1.100 dst 172.16.1.200 proto esp reqid 1 \
		mode tunnel
	# root -> at_ns0
	ip xfrm state add src 172.16.1.200 dst 172.16.1.100 proto esp \
		spi $spi_out_to_in reqid 2 mode tunnel \
		auth-trunc 'hmac(sha1)' $auth 96  enc 'cbc(aes)' $enc
	ip xfrm policy add src 10.1.1.200/32 dst 10.1.1.100/32 dir out \
		tmpl src 172.16.1.200 dst 172.16.1.100 proto esp reqid 2 \
		mode tunnel
	# address & route
	ip addr add dev veth1 10.1.1.200/32
	ip route add 10.1.1.100 dev veth1 via 172.16.1.100 src 10.1.1.200
}

test_xfrm_tunnel()
{
	config_device
        #tcpdump -nei veth1 ip &
	output=$(mktemp)
	cat /sys/kernel/debug/tracing/trace_pipe | tee $output &
        setup_xfrm_tunnel
	tc qdisc add dev veth1 clsact
	tc filter add dev veth1 proto ip ingress bpf da obj test_tunnel_kern.o \
		sec xfrm_get_state
	ip netns exec at_ns0 ping $PING_ARG 10.1.1.200
	sleep 1
	grep "reqid 1" $output
	check_err $?
	grep "spi 0x1" $output
	check_err $?
	grep "remote ip 0xac100164" $output
	check_err $?
	cleanup

	if [ $ret -ne 0 ]; then
                echo -e ${RED}"FAIL: xfrm tunnel"${NC}
                return 1
        fi
        echo -e ${GREEN}"PASS: xfrm tunnel"${NC}
}

attach_bpf()
{
	DEV=$1
	SET=$2
	GET=$3
	tc qdisc add dev $DEV clsact
	tc filter add dev $DEV egress bpf da obj test_tunnel_kern.o sec $SET
	tc filter add dev $DEV ingress bpf da obj test_tunnel_kern.o sec $GET
}

cleanup()
{
	ip netns delete at_ns0 2> /dev/null
	ip link del veth1 2> /dev/null
	ip link del ipip11 2> /dev/null
	ip link del ipip6tnl11 2> /dev/null
	ip link del gretap11 2> /dev/null
	ip link del ip6gre11 2> /dev/null
	ip link del ip6gretap11 2> /dev/null
	ip link del vxlan11 2> /dev/null
	ip link del ip6vxlan11 2> /dev/null
	ip link del geneve11 2> /dev/null
	ip link del ip6geneve11 2> /dev/null
	ip link del erspan11 2> /dev/null
	ip link del ip6erspan11 2> /dev/null
}

cleanup_exit()
{
	echo "CATCH SIGKILL or SIGINT, cleanup and exit"
	cleanup
	exit 0
}

check()
{
	ip link help 2>&1 | grep -q "\s$1\s"
	if [ $? -ne 0 ];then
		echo "SKIP $1: iproute2 not support"
	cleanup
	return 1
	fi
}

enable_debug()
{
	echo 'file ip_gre.c +p' > /sys/kernel/debug/dynamic_debug/control
	echo 'file ip6_gre.c +p' > /sys/kernel/debug/dynamic_debug/control
	echo 'file vxlan.c +p' > /sys/kernel/debug/dynamic_debug/control
	echo 'file geneve.c +p' > /sys/kernel/debug/dynamic_debug/control
	echo 'file ipip.c +p' > /sys/kernel/debug/dynamic_debug/control
}

check_err()
{
	if [ $ret -eq 0 ]; then
		ret=$1
	fi
}

bpf_tunnel_test()
{
	echo "Testing GRE tunnel..."
	test_gre
	echo "Testing IP6GRE tunnel..."
	test_ip6gre
	echo "Testing IP6GRETAP tunnel..."
	test_ip6gretap
	echo "Testing ERSPAN tunnel..."
	test_erspan v2
	echo "Testing IP6ERSPAN tunnel..."
	test_ip6erspan v2
	echo "Testing VXLAN tunnel..."
	test_vxlan
	echo "Testing IP6VXLAN tunnel..."
	test_ip6vxlan
	echo "Testing GENEVE tunnel..."
	test_geneve
	echo "Testing IP6GENEVE tunnel..."
	test_ip6geneve
	echo "Testing IPIP tunnel..."
	test_ipip
	echo "Testing IPIP6 tunnel..."
	test_ipip6
	echo "Testing IPSec tunnel..."
	test_xfrm_tunnel
}

trap cleanup 0 3 6
trap cleanup_exit 2 9

cleanup
bpf_tunnel_test

exit 0