1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0+
3 #
4 # Author: Justin Iurman <justin.iurman@uliege.b
5 #
6 # This script evaluates the IOAM insertion for
7 # consistency directly inside packets on the r
8 # into three categories: OUTPUT (evaluates the
9 # INPUT (evaluates the IOAM processing by a re
10 # wider use cases that do not fall into the ot
11 # and INPUT tests only use a two-node topology
12 # tests use the entire three-node topology (al
13 # documented inside its own handler in the cod
14 #
15 # An IOAM domain is configured from Alpha to G
16 # When either Beta or Gamma is the destination
17 # Alpha adds an IOAM option (Pre-allocated Tra
18 #
19 #
20 # +-------------------+
21 # | |
22 # | Alpha netns |
23 # | |
24 # | +-------------+ |
25 # | | veth0 | |
26 # | | db01::2/64 | |
27 # | +-------------+ |
28 # | . |
29 # +-------------------+
30 # .
31 # .
32 # .
33 # +--------------------------------
34 # | .
35 # | +-------------+
36 # | | veth0 |
37 # | | db01::1/64 | ..............
38 # | +-------------+
39 # |
40 # | Beta netns
41 # |
42 # +--------------------------------
43 #
44 #
45 #
46 # =====================================
47 # | Alpha - IOAM configu
48 # +====================================
49 # | Node ID | 1
50 # +------------------------------------
51 # | Node Wide ID | 11111111
52 # +------------------------------------
53 # | Ingress ID | 0xffff (defau
54 # +------------------------------------
55 # | Ingress Wide ID | 0xffffffff (d
56 # +------------------------------------
57 # | Egress ID | 101
58 # +------------------------------------
59 # | Egress Wide ID | 101101
60 # +------------------------------------
61 # | Namespace Data | 0xdeadbee0
62 # +------------------------------------
63 # | Namespace Wide Data | 0xcafec0caf00
64 # +------------------------------------
65 # | Schema ID | 777
66 # +------------------------------------
67 # | Schema Data | something tha
68 # +------------------------------------
69 #
70 #
71 # =====================================
72 # | Beta - IOAM configu
73 # +====================================
74 # | Node ID | 2
75 # +------------------------------------
76 # | Node Wide ID | 22222222
77 # +------------------------------------
78 # | Ingress ID | 201
79 # +------------------------------------
80 # | Ingress Wide ID | 201201
81 # +------------------------------------
82 # | Egress ID | 202
83 # +------------------------------------
84 # | Egress Wide ID | 202202
85 # +------------------------------------
86 # | Namespace Data | 0xdeadbee1
87 # +------------------------------------
88 # | Namespace Wide Data | 0xcafec0caf11
89 # +------------------------------------
90 # | Schema ID | 666
91 # +------------------------------------
92 # | Schema Data | Hello there -
93 # +------------------------------------
94 #
95 #
96 # =====================================
97 # | Gamma - IOAM configu
98 # +====================================
99 # | Node ID | 3
100 # +------------------------------------
101 # | Node Wide ID | 33333333
102 # +------------------------------------
103 # | Ingress ID | 301
104 # +------------------------------------
105 # | Ingress Wide ID | 301301
106 # +------------------------------------
107 # | Egress ID | 0xffff (defau
108 # +------------------------------------
109 # | Egress Wide ID | 0xffffffff (d
110 # +------------------------------------
111 # | Namespace Data | 0xdeadbee2
112 # +------------------------------------
113 # | Namespace Wide Data | 0xcafec0caf22
114 # +------------------------------------
115 # | Schema ID | 0xffffff (= N
116 # +------------------------------------
117 # | Schema Data |
118 # +------------------------------------
119
120 source lib.sh
121
122 ##############################################
123 #
124 # WARNING: Be careful if you modify the block
125 # synchronized with configurations in
126 # reflect the same.
127 #
128 ##############################################
129
130 ALPHA=(
131 1
132 11111111
133 0xffff
134 0xffffffff
135 101
136 101101
137 0xdeadbee0
138 0xcafec0caf00dc0de
139 777
140 "something that will be 4n-aligned"
141 )
142
143 BETA=(
144 2
145 22222222
146 201
147 201201
148 202
149 202202
150 0xdeadbee1
151 0xcafec0caf11dc0de
152 666
153 "Hello there -Obi"
154 )
155
156 GAMMA=(
157 3
158 33333333
159 301
160 301301
161 0xffff
162 0xffffffff
163 0xdeadbee2
164 0xcafec0caf22dc0de
165 0xffffff
166 ""
167 )
168
169 TESTS_OUTPUT="
170 out_undef_ns
171 out_no_room
172 out_bits
173 out_full_supp_trace
174 "
175
176 TESTS_INPUT="
177 in_undef_ns
178 in_no_room
179 in_oflag
180 in_bits
181 in_full_supp_trace
182 "
183
184 TESTS_GLOBAL="
185 fwd_full_supp_trace
186 "
187
188
189 ##############################################
190 #
191 # LIBRARY
192 #
193 ##############################################
194
195 check_kernel_compatibility()
196 {
197 setup_ns ioam_tmp_node
198 ip link add name veth0 netns $ioam_tmp_node
199 peer name veth1 netns $ioam_tmp_node
200
201 ip -netns $ioam_tmp_node link set veth0 up
202 ip -netns $ioam_tmp_node link set veth1 up
203
204 ip -netns $ioam_tmp_node ioam namespace add
205 ns_ad=$?
206
207 ip -netns $ioam_tmp_node ioam namespace show
208 ns_sh=$?
209
210 if [[ $ns_ad != 0 || $ns_sh != 0 ]]
211 then
212 echo "SKIP: kernel version probably too ol
213 ip link del veth0 2>/dev/null || true
214 cleanup_ns $ioam_tmp_node || true
215 exit $ksft_skip
216 fi
217
218 ip -netns $ioam_tmp_node route add db02::/64
219 trace prealloc type 0x800000 ns 0 siz
220 tr_ad=$?
221
222 ip -netns $ioam_tmp_node -6 route | grep -q
223 tr_sh=$?
224
225 if [[ $tr_ad != 0 || $tr_sh != 0 ]]
226 then
227 echo "SKIP: cannot attach an ioam trace to
228 "without CONFIG_IPV6_IOAM6_LWTUNNEL?"
229 ip link del veth0 2>/dev/null || true
230 cleanup_ns $ioam_tmp_node || true
231 exit $ksft_skip
232 fi
233
234 ip link del veth0 2>/dev/null || true
235 cleanup_ns $ioam_tmp_node || true
236
237 lsmod | grep -q "ip6_tunnel"
238 ip6tnl_loaded=$?
239
240 if [ $ip6tnl_loaded = 0 ]
241 then
242 encap_tests=0
243 else
244 modprobe ip6_tunnel &>/dev/null
245 lsmod | grep -q "ip6_tunnel"
246 encap_tests=$?
247
248 if [ $encap_tests != 0 ]
249 then
250 ip a | grep -q "ip6tnl0"
251 encap_tests=$?
252
253 if [ $encap_tests != 0 ]
254 then
255 echo "Note: ip6_tunnel not found neith
256 "kernel, tests that require it (e
257 fi
258 fi
259 fi
260 }
261
262 cleanup()
263 {
264 ip link del ioam-veth-alpha 2>/dev/null || t
265 ip link del ioam-veth-gamma 2>/dev/null || t
266
267 cleanup_ns $ioam_node_alpha $ioam_node_beta
268
269 if [ $ip6tnl_loaded != 0 ]
270 then
271 modprobe -r ip6_tunnel 2>/dev/null || true
272 fi
273 }
274
275 setup()
276 {
277 setup_ns ioam_node_alpha ioam_node_beta ioam
278
279 ip link add name ioam-veth-alpha netns $ioam
280 peer name ioam-veth-betaL netns $ioam
281 ip link add name ioam-veth-betaR netns $ioam
282 peer name ioam-veth-gamma netns $ioam
283
284 ip -netns $ioam_node_alpha link set ioam-vet
285 ip -netns $ioam_node_beta link set ioam-veth
286 ip -netns $ioam_node_beta link set ioam-veth
287 ip -netns $ioam_node_gamma link set ioam-vet
288
289 ip -netns $ioam_node_alpha addr add db01::2/
290 ip -netns $ioam_node_alpha link set veth0 up
291 ip -netns $ioam_node_alpha link set lo up
292 ip -netns $ioam_node_alpha route add db02::/
293 ip -netns $ioam_node_alpha route del db01::/
294 ip -netns $ioam_node_alpha route add db01::/
295
296 ip -netns $ioam_node_beta addr add db01::1/6
297 ip -netns $ioam_node_beta addr add db02::1/6
298 ip -netns $ioam_node_beta link set veth0 up
299 ip -netns $ioam_node_beta link set veth1 up
300 ip -netns $ioam_node_beta link set lo up
301
302 ip -netns $ioam_node_gamma addr add db02::2/
303 ip -netns $ioam_node_gamma link set veth0 up
304 ip -netns $ioam_node_gamma link set lo up
305 ip -netns $ioam_node_gamma route add db01::/
306
307 # - IOAM config -
308 ip netns exec $ioam_node_alpha sysctl -wq ne
309 ip netns exec $ioam_node_alpha sysctl -wq ne
310 ip netns exec $ioam_node_alpha sysctl -wq ne
311 ip netns exec $ioam_node_alpha sysctl -wq ne
312 ip -netns $ioam_node_alpha ioam namespace ad
313 ip -netns $ioam_node_alpha ioam schema add $
314 ip -netns $ioam_node_alpha ioam namespace se
315
316 ip netns exec $ioam_node_beta sysctl -wq net
317 ip netns exec $ioam_node_beta sysctl -wq net
318 ip netns exec $ioam_node_beta sysctl -wq net
319 ip netns exec $ioam_node_beta sysctl -wq net
320 ip netns exec $ioam_node_beta sysctl -wq net
321 ip netns exec $ioam_node_beta sysctl -wq net
322 ip netns exec $ioam_node_beta sysctl -wq net
323 ip netns exec $ioam_node_beta sysctl -wq net
324 ip -netns $ioam_node_beta ioam namespace add
325 ip -netns $ioam_node_beta ioam schema add ${
326 ip -netns $ioam_node_beta ioam namespace set
327
328 ip netns exec $ioam_node_gamma sysctl -wq ne
329 ip netns exec $ioam_node_gamma sysctl -wq ne
330 ip netns exec $ioam_node_gamma sysctl -wq ne
331 ip netns exec $ioam_node_gamma sysctl -wq ne
332 ip netns exec $ioam_node_gamma sysctl -wq ne
333 ip -netns $ioam_node_gamma ioam namespace ad
334
335 sleep 1
336
337 ip netns exec $ioam_node_alpha ping6 -c 5 -W
338 if [ $? != 0 ]
339 then
340 echo "Setup FAILED"
341 cleanup &>/dev/null
342 exit 0
343 fi
344 }
345
346 log_test_passed()
347 {
348 local desc=$1
349 printf "TEST: %-60s [ OK ]\n" "${desc}"
350 }
351
352 log_test_failed()
353 {
354 local desc=$1
355 printf "TEST: %-60s [FAIL]\n" "${desc}"
356 }
357
358 log_results()
359 {
360 echo "- Tests passed: ${npassed}"
361 echo "- Tests failed: ${nfailed}"
362 }
363
364 run_test()
365 {
366 local name=$1
367 local desc=$2
368 local node_src=$3
369 local node_dst=$4
370 local ip6_dst=$5
371 local trace_type=$6
372 local ioam_ns=$7
373 local type=$8
374
375 ip netns exec $node_dst ./ioam6_parser $name
376 local spid=$!
377 sleep 0.1
378
379 ip netns exec $node_src ping6 -t 64 -c 1 -W
380 if [ $? != 0 ]
381 then
382 nfailed=$((nfailed+1))
383 log_test_failed "${desc}"
384 kill -2 $spid &>/dev/null
385 else
386 wait $spid
387 if [ $? = 0 ]
388 then
389 npassed=$((npassed+1))
390 log_test_passed "${desc}"
391 else
392 nfailed=$((nfailed+1))
393 log_test_failed "${desc}"
394 fi
395 fi
396 }
397
398 run()
399 {
400 echo
401 printf "%0.s-" {1..74}
402 echo
403 echo "OUTPUT tests"
404 printf "%0.s-" {1..74}
405 echo
406
407 # set OUTPUT settings
408 ip netns exec $ioam_node_beta sysctl -wq net
409
410 for t in $TESTS_OUTPUT
411 do
412 $t "inline"
413 [ $encap_tests = 0 ] && $t "encap"
414 done
415
416 # clean OUTPUT settings
417 ip netns exec $ioam_node_beta sysctl -wq net
418 ip -netns $ioam_node_alpha route change db01
419
420
421 echo
422 printf "%0.s-" {1..74}
423 echo
424 echo "INPUT tests"
425 printf "%0.s-" {1..74}
426 echo
427
428 # set INPUT settings
429 ip -netns $ioam_node_alpha ioam namespace de
430
431 for t in $TESTS_INPUT
432 do
433 $t "inline"
434 [ $encap_tests = 0 ] && $t "encap"
435 done
436
437 # clean INPUT settings
438 ip -netns $ioam_node_alpha ioam namespace ad
439 data ${ALPHA[6]} wide ${ALPHA[7]}
440 ip -netns $ioam_node_alpha ioam namespace se
441 ip -netns $ioam_node_alpha route change db01
442
443 echo
444 printf "%0.s-" {1..74}
445 echo
446 echo "GLOBAL tests"
447 printf "%0.s-" {1..74}
448 echo
449
450 for t in $TESTS_GLOBAL
451 do
452 $t "inline"
453 [ $encap_tests = 0 ] && $t "encap"
454 done
455
456 echo
457 log_results
458 }
459
460 bit2type=(
461 0x800000 0x400000 0x200000 0x100000 0x080000
462 0x008000 0x004000 0x002000 0x001000 0x000800
463 0x000080 0x000040 0x000020 0x000010 0x000008
464 )
465 bit2size=( 4 4 4 4 4 4 4 4 8 8 8 4 4 4 4 4 4 4
466
467
468 ##############################################
469 #
470 # OUTPUT tests
471 #
472 # Two nodes (sender/receiver), IOAM disabled
473 ##############################################
474
475 out_undef_ns()
476 {
477 ############################################
478 # Make sure that the encap node won't fill t
479 # namespace is not configured locally.
480 ############################################
481 local desc="Unknown IOAM namespace"
482
483 [ "$1" = "encap" ] && mode="$1 tundst db01::
484 [ "$1" = "encap" ] && ip -netns $ioam_node_b
485
486 ip -netns $ioam_node_alpha route change db01
487 trace prealloc type 0x800000 ns 0 siz
488
489 run_test ${FUNCNAME[0]} "${desc} ($1 mode)"
490 db01::1 0x800000 0 $1
491
492 [ "$1" = "encap" ] && ip -netns $ioam_node_b
493 }
494
495 out_no_room()
496 {
497 ############################################
498 # Make sure that the encap node won't fill t
499 # Overflow flag since there is no room enoug
500 ############################################
501 local desc="Missing trace room"
502
503 [ "$1" = "encap" ] && mode="$1 tundst db01::
504 [ "$1" = "encap" ] && ip -netns $ioam_node_b
505
506 ip -netns $ioam_node_alpha route change db01
507 trace prealloc type 0xc00000 ns 123 s
508
509 run_test ${FUNCNAME[0]} "${desc} ($1 mode)"
510 db01::1 0xc00000 123 $1
511
512 [ "$1" = "encap" ] && ip -netns $ioam_node_b
513 }
514
515 out_bits()
516 {
517 ############################################
518 # Make sure that, for each trace type bit, t
519 # (i) fill the trace with its data when it
520 # (ii) not fill the trace with its data whe
521 ############################################
522 local desc="Trace type with bit <n> only"
523
524 local tmp=${bit2size[22]}
525 bit2size[22]=$(( $tmp + ${#ALPHA[9]} + ((4 -
526
527 [ "$1" = "encap" ] && mode="$1 tundst db01::
528 [ "$1" = "encap" ] && ip -netns $ioam_node_b
529
530 for i in {0..22}
531 do
532 ip -netns $ioam_node_alpha route change db
533 trace prealloc type ${bit2type[$i]}
534 dev veth0 &>/dev/null
535
536 local cmd_res=$?
537 local descr="${desc/<n>/$i}"
538
539 if [[ $i -ge 12 && $i -le 21 ]]
540 then
541 if [ $cmd_res != 0 ]
542 then
543 npassed=$((npassed+1))
544 log_test_passed "$descr ($1 mode)"
545 else
546 nfailed=$((nfailed+1))
547 log_test_failed "$descr ($1 mode)"
548 fi
549 else
550 run_test "out_bit$i" "$descr ($1 mode)
551 $ioam_node_beta db01::1 ${bit2type[
552 fi
553 done
554
555 [ "$1" = "encap" ] && ip -netns $ioam_node_b
556
557 bit2size[22]=$tmp
558 }
559
560 out_full_supp_trace()
561 {
562 ############################################
563 # Make sure that the encap node will correct
564 # "full trace" here does NOT mean all bits (
565 ############################################
566 local desc="Full supported trace"
567
568 [ "$1" = "encap" ] && mode="$1 tundst db01::
569 [ "$1" = "encap" ] && ip -netns $ioam_node_b
570
571 ip -netns $ioam_node_alpha route change db01
572 trace prealloc type 0xfff002 ns 123 s
573
574 run_test ${FUNCNAME[0]} "${desc} ($1 mode)"
575 db01::1 0xfff002 123 $1
576
577 [ "$1" = "encap" ] && ip -netns $ioam_node_b
578 }
579
580
581 ##############################################
582 #
583 # INPUT tests
584 #
585 # Two nodes (sender/receiver), the sender
586 # insertion -> the IOAM namespace configur
587 # and is used in the inserted trace to for
588 ##############################################
589
590 in_undef_ns()
591 {
592 ############################################
593 # Make sure that the receiving node won't fi
594 # namespace is not configured locally.
595 ############################################
596 local desc="Unknown IOAM namespace"
597
598 [ "$1" = "encap" ] && mode="$1 tundst db01::
599 [ "$1" = "encap" ] && ip -netns $ioam_node_b
600
601 ip -netns $ioam_node_alpha route change db01
602 trace prealloc type 0x800000 ns 0 siz
603
604 run_test ${FUNCNAME[0]} "${desc} ($1 mode)"
605 db01::1 0x800000 0 $1
606
607 [ "$1" = "encap" ] && ip -netns $ioam_node_b
608 }
609
610 in_no_room()
611 {
612 ############################################
613 # Make sure that the receiving node won't fi
614 # Overflow flag if there is no room enough f
615 ############################################
616 local desc="Missing trace room"
617
618 [ "$1" = "encap" ] && mode="$1 tundst db01::
619 [ "$1" = "encap" ] && ip -netns $ioam_node_b
620
621 ip -netns $ioam_node_alpha route change db01
622 trace prealloc type 0xc00000 ns 123 s
623
624 run_test ${FUNCNAME[0]} "${desc} ($1 mode)"
625 db01::1 0xc00000 123 $1
626
627 [ "$1" = "encap" ] && ip -netns $ioam_node_b
628 }
629
630 in_bits()
631 {
632 ############################################
633 # Make sure that, for each trace type bit, t
634 # (i) fill the trace with its data when it
635 # (ii) not fill the trace with its data whe
636 ############################################
637 local desc="Trace type with bit <n> only"
638
639 local tmp=${bit2size[22]}
640 bit2size[22]=$(( $tmp + ${#BETA[9]} + ((4 -
641
642 [ "$1" = "encap" ] && mode="$1 tundst db01::
643 [ "$1" = "encap" ] && ip -netns $ioam_node_b
644
645 for i in {0..11} {22..22}
646 do
647 ip -netns $ioam_node_alpha route change db
648 trace prealloc type ${bit2type[$i]}
649 dev veth0
650
651 run_test "in_bit$i" "${desc/<n>/$i} ($1 mo
652 $ioam_node_beta db01::1 ${bit2type[
653 done
654
655 [ "$1" = "encap" ] && ip -netns $ioam_node_b
656
657 bit2size[22]=$tmp
658 }
659
660 in_oflag()
661 {
662 ############################################
663 # Make sure that the receiving node won't fi
664 # flag is set.
665 ############################################
666 local desc="Overflow flag is set"
667
668 # Exception:
669 # Here, we need the sender to set the Over
670 # back the IOAM namespace that was previou
671 ip -netns $ioam_node_alpha ioam namespace ad
672
673 [ "$1" = "encap" ] && mode="$1 tundst db01::
674 [ "$1" = "encap" ] && ip -netns $ioam_node_b
675
676 ip -netns $ioam_node_alpha route change db01
677 trace prealloc type 0xc00000 ns 123 s
678
679 run_test ${FUNCNAME[0]} "${desc} ($1 mode)"
680 db01::1 0xc00000 123 $1
681
682 [ "$1" = "encap" ] && ip -netns $ioam_node_b
683
684 # And we clean the exception for this test t
685 # other INPUT tests
686 ip -netns $ioam_node_alpha ioam namespace de
687 }
688
689 in_full_supp_trace()
690 {
691 ############################################
692 # Make sure that the receiving node will cor
693 # careful, "full trace" here does NOT mean a
694 ############################################
695 local desc="Full supported trace"
696
697 [ "$1" = "encap" ] && mode="$1 tundst db01::
698 [ "$1" = "encap" ] && ip -netns $ioam_node_b
699
700 ip -netns $ioam_node_alpha route change db01
701 trace prealloc type 0xfff002 ns 123 s
702
703 run_test ${FUNCNAME[0]} "${desc} ($1 mode)"
704 db01::1 0xfff002 123 $1
705
706 [ "$1" = "encap" ] && ip -netns $ioam_node_b
707 }
708
709
710 ##############################################
711 #
712 # GLOBAL tests
713 #
714 # Three nodes (sender/router/receiver), IOAM
715 ##############################################
716
717 fwd_full_supp_trace()
718 {
719 ############################################
720 # Make sure that all three nodes correctly f
721 # by checking that the trace data is consist
722 ############################################
723 local desc="Forward - Full supported trace"
724
725 [ "$1" = "encap" ] && mode="$1 tundst db02::
726 [ "$1" = "encap" ] && ip -netns $ioam_node_g
727
728 ip -netns $ioam_node_alpha route change db02
729 trace prealloc type 0xfff002 ns 123 s
730
731 run_test ${FUNCNAME[0]} "${desc} ($1 mode)"
732 db02::2 0xfff002 123 $1
733
734 [ "$1" = "encap" ] && ip -netns $ioam_node_g
735 }
736
737
738 ##############################################
739 #
740 # MAIN
741 #
742 ##############################################
743
744 npassed=0
745 nfailed=0
746
747 if [ "$(id -u)" -ne 0 ]
748 then
749 echo "SKIP: Need root privileges"
750 exit $ksft_skip
751 fi
752
753 if [ ! -x "$(command -v ip)" ]
754 then
755 echo "SKIP: Could not run test without ip to
756 exit $ksft_skip
757 fi
758
759 ip ioam &>/dev/null
760 if [ $? = 1 ]
761 then
762 echo "SKIP: iproute2 too old, missing ioam c
763 exit $ksft_skip
764 fi
765
766 check_kernel_compatibility
767
768 cleanup &>/dev/null
769 setup
770 run
771 cleanup &>/dev/null
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.