tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0+
3#
4# Author: Justin Iurman <justin.iurman@uliege.be>
5#
6# This script evaluates the IOAM insertion for IPv6 by checking the IOAM data
7# consistency directly inside packets on the receiver side. Tests are divided
8# into three categories: OUTPUT (evaluates the IOAM processing by the sender),
9# INPUT (evaluates the IOAM processing by a receiver) and GLOBAL (evaluates
10# wider use cases that do not fall into the other two categories). Both OUTPUT
11# and INPUT tests only use a two-node topology (alpha and beta), while GLOBAL
12# tests use the entire three-node topology (alpha, beta, gamma). Each test is
13# documented inside its own handler in the code below.
14#
15# An IOAM domain is configured from Alpha to Gamma but not on the reverse path.
16# When either Beta or Gamma is the destination (depending on the test category),
17# Alpha adds an IOAM option (Pre-allocated Trace) inside a Hop-by-hop.
18#
19#
20# +-------------------+ +-------------------+
21# | | | |
22# | Alpha netns | | Gamma netns |
23# | | | |
24# | +-------------+ | | +-------------+ |
25# | | veth0 | | | | veth0 | |
26# | | db01::2/64 | | | | db02::2/64 | |
27# | +-------------+ | | +-------------+ |
28# | . | | . |
29# +-------------------+ +-------------------+
30# . .
31# . .
32# . .
33# +----------------------------------------------------+
34# | . . |
35# | +-------------+ +-------------+ |
36# | | veth0 | | veth1 | |
37# | | db01::1/64 | ................ | db02::1/64 | |
38# | +-------------+ +-------------+ |
39# | |
40# | Beta netns |
41# | |
42# +----------------------------------------------------+
43#
44#
45#
46# =============================================================
47# | Alpha - IOAM configuration |
48# +===========================================================+
49# | Node ID | 1 |
50# +-----------------------------------------------------------+
51# | Node Wide ID | 11111111 |
52# +-----------------------------------------------------------+
53# | Ingress ID | 0xffff (default value) |
54# +-----------------------------------------------------------+
55# | Ingress Wide ID | 0xffffffff (default value) |
56# +-----------------------------------------------------------+
57# | Egress ID | 101 |
58# +-----------------------------------------------------------+
59# | Egress Wide ID | 101101 |
60# +-----------------------------------------------------------+
61# | Namespace Data | 0xdeadbee0 |
62# +-----------------------------------------------------------+
63# | Namespace Wide Data | 0xcafec0caf00dc0de |
64# +-----------------------------------------------------------+
65# | Schema ID | 777 |
66# +-----------------------------------------------------------+
67# | Schema Data | something that will be 4n-aligned |
68# +-----------------------------------------------------------+
69#
70#
71# =============================================================
72# | Beta - IOAM configuration |
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 | 0xcafec0caf11dc0de |
89# +-----------------------------------------------------------+
90# | Schema ID | 666 |
91# +-----------------------------------------------------------+
92# | Schema Data | Hello there -Obi |
93# +-----------------------------------------------------------+
94#
95#
96# =============================================================
97# | Gamma - IOAM configuration |
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 (default value) |
108# +-----------------------------------------------------------+
109# | Egress Wide ID | 0xffffffff (default value) |
110# +-----------------------------------------------------------+
111# | Namespace Data | 0xdeadbee2 |
112# +-----------------------------------------------------------+
113# | Namespace Wide Data | 0xcafec0caf22dc0de |
114# +-----------------------------------------------------------+
115# | Schema ID | 0xffffff (= None) |
116# +-----------------------------------------------------------+
117# | Schema Data | |
118# +-----------------------------------------------------------+
119
120# Kselftest framework requirement - SKIP code is 4.
121ksft_skip=4
122
123################################################################################
124# #
125# WARNING: Be careful if you modify the block below - it MUST be kept #
126# synchronized with configurations inside ioam6_parser.c and always #
127# reflect the same. #
128# #
129################################################################################
130
131ALPHA=(
132 1 # ID
133 11111111 # Wide ID
134 0xffff # Ingress ID
135 0xffffffff # Ingress Wide ID
136 101 # Egress ID
137 101101 # Egress Wide ID
138 0xdeadbee0 # Namespace Data
139 0xcafec0caf00dc0de # Namespace Wide Data
140 777 # Schema ID (0xffffff = None)
141 "something that will be 4n-aligned" # Schema Data
142)
143
144BETA=(
145 2
146 22222222
147 201
148 201201
149 202
150 202202
151 0xdeadbee1
152 0xcafec0caf11dc0de
153 666
154 "Hello there -Obi"
155)
156
157GAMMA=(
158 3
159 33333333
160 301
161 301301
162 0xffff
163 0xffffffff
164 0xdeadbee2
165 0xcafec0caf22dc0de
166 0xffffff
167 ""
168)
169
170TESTS_OUTPUT="
171 out_undef_ns
172 out_no_room
173 out_bits
174 out_full_supp_trace
175"
176
177TESTS_INPUT="
178 in_undef_ns
179 in_no_room
180 in_oflag
181 in_bits
182 in_full_supp_trace
183"
184
185TESTS_GLOBAL="
186 fwd_full_supp_trace
187"
188
189
190################################################################################
191# #
192# LIBRARY #
193# #
194################################################################################
195
196check_kernel_compatibility()
197{
198 ip netns add ioam-tmp-node
199 ip link add name veth0 netns ioam-tmp-node type veth \
200 peer name veth1 netns ioam-tmp-node
201
202 ip -netns ioam-tmp-node link set veth0 up
203 ip -netns ioam-tmp-node link set veth1 up
204
205 ip -netns ioam-tmp-node ioam namespace add 0
206 ns_ad=$?
207
208 ip -netns ioam-tmp-node ioam namespace show | grep -q "namespace 0"
209 ns_sh=$?
210
211 if [[ $ns_ad != 0 || $ns_sh != 0 ]]
212 then
213 echo "SKIP: kernel version probably too old, missing ioam support"
214 ip link del veth0 2>/dev/null || true
215 ip netns del ioam-tmp-node || true
216 exit $ksft_skip
217 fi
218
219 ip -netns ioam-tmp-node route add db02::/64 encap ioam6 mode inline \
220 trace prealloc type 0x800000 ns 0 size 4 dev veth0
221 tr_ad=$?
222
223 ip -netns ioam-tmp-node -6 route | grep -q "encap ioam6"
224 tr_sh=$?
225
226 if [[ $tr_ad != 0 || $tr_sh != 0 ]]
227 then
228 echo "SKIP: cannot attach an ioam trace to a route, did you compile" \
229 "without CONFIG_IPV6_IOAM6_LWTUNNEL?"
230 ip link del veth0 2>/dev/null || true
231 ip netns del ioam-tmp-node || true
232 exit $ksft_skip
233 fi
234
235 ip link del veth0 2>/dev/null || true
236 ip netns del ioam-tmp-node || true
237
238 lsmod | grep -q "ip6_tunnel"
239 ip6tnl_loaded=$?
240
241 if [ $ip6tnl_loaded = 0 ]
242 then
243 encap_tests=0
244 else
245 modprobe ip6_tunnel &>/dev/null
246 lsmod | grep -q "ip6_tunnel"
247 encap_tests=$?
248
249 if [ $encap_tests != 0 ]
250 then
251 ip a | grep -q "ip6tnl0"
252 encap_tests=$?
253
254 if [ $encap_tests != 0 ]
255 then
256 echo "Note: ip6_tunnel not found neither as a module nor inside the" \
257 "kernel, tests that require it (encap mode) will be omitted"
258 fi
259 fi
260 fi
261}
262
263cleanup()
264{
265 ip link del ioam-veth-alpha 2>/dev/null || true
266 ip link del ioam-veth-gamma 2>/dev/null || true
267
268 ip netns del ioam-node-alpha || true
269 ip netns del ioam-node-beta || true
270 ip netns del ioam-node-gamma || true
271
272 if [ $ip6tnl_loaded != 0 ]
273 then
274 modprobe -r ip6_tunnel 2>/dev/null || true
275 fi
276}
277
278setup()
279{
280 ip netns add ioam-node-alpha
281 ip netns add ioam-node-beta
282 ip netns add ioam-node-gamma
283
284 ip link add name ioam-veth-alpha netns ioam-node-alpha type veth \
285 peer name ioam-veth-betaL netns ioam-node-beta
286 ip link add name ioam-veth-betaR netns ioam-node-beta type veth \
287 peer name ioam-veth-gamma netns ioam-node-gamma
288
289 ip -netns ioam-node-alpha link set ioam-veth-alpha name veth0
290 ip -netns ioam-node-beta link set ioam-veth-betaL name veth0
291 ip -netns ioam-node-beta link set ioam-veth-betaR name veth1
292 ip -netns ioam-node-gamma link set ioam-veth-gamma name veth0
293
294 ip -netns ioam-node-alpha addr add db01::2/64 dev veth0
295 ip -netns ioam-node-alpha link set veth0 up
296 ip -netns ioam-node-alpha link set lo up
297 ip -netns ioam-node-alpha route add db02::/64 via db01::1 dev veth0
298 ip -netns ioam-node-alpha route del db01::/64
299 ip -netns ioam-node-alpha route add db01::/64 dev veth0
300
301 ip -netns ioam-node-beta addr add db01::1/64 dev veth0
302 ip -netns ioam-node-beta addr add db02::1/64 dev veth1
303 ip -netns ioam-node-beta link set veth0 up
304 ip -netns ioam-node-beta link set veth1 up
305 ip -netns ioam-node-beta link set lo up
306
307 ip -netns ioam-node-gamma addr add db02::2/64 dev veth0
308 ip -netns ioam-node-gamma link set veth0 up
309 ip -netns ioam-node-gamma link set lo up
310 ip -netns ioam-node-gamma route add db01::/64 via db02::1 dev veth0
311
312 # - IOAM config -
313 ip netns exec ioam-node-alpha sysctl -wq net.ipv6.ioam6_id=${ALPHA[0]}
314 ip netns exec ioam-node-alpha sysctl -wq net.ipv6.ioam6_id_wide=${ALPHA[1]}
315 ip netns exec ioam-node-alpha sysctl -wq net.ipv6.conf.veth0.ioam6_id=${ALPHA[4]}
316 ip netns exec ioam-node-alpha sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${ALPHA[5]}
317 ip -netns ioam-node-alpha ioam namespace add 123 data ${ALPHA[6]} wide ${ALPHA[7]}
318 ip -netns ioam-node-alpha ioam schema add ${ALPHA[8]} "${ALPHA[9]}"
319 ip -netns ioam-node-alpha ioam namespace set 123 schema ${ALPHA[8]}
320
321 ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.all.forwarding=1
322 ip netns exec ioam-node-beta sysctl -wq net.ipv6.ioam6_id=${BETA[0]}
323 ip netns exec ioam-node-beta sysctl -wq net.ipv6.ioam6_id_wide=${BETA[1]}
324 ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1
325 ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth0.ioam6_id=${BETA[2]}
326 ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${BETA[3]}
327 ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth1.ioam6_id=${BETA[4]}
328 ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth1.ioam6_id_wide=${BETA[5]}
329 ip -netns ioam-node-beta ioam namespace add 123 data ${BETA[6]} wide ${BETA[7]}
330 ip -netns ioam-node-beta ioam schema add ${BETA[8]} "${BETA[9]}"
331 ip -netns ioam-node-beta ioam namespace set 123 schema ${BETA[8]}
332
333 ip netns exec ioam-node-gamma sysctl -wq net.ipv6.ioam6_id=${GAMMA[0]}
334 ip netns exec ioam-node-gamma sysctl -wq net.ipv6.ioam6_id_wide=${GAMMA[1]}
335 ip netns exec ioam-node-gamma sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1
336 ip netns exec ioam-node-gamma sysctl -wq net.ipv6.conf.veth0.ioam6_id=${GAMMA[2]}
337 ip netns exec ioam-node-gamma sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${GAMMA[3]}
338 ip -netns ioam-node-gamma ioam namespace add 123 data ${GAMMA[6]} wide ${GAMMA[7]}
339
340 sleep 1
341
342 ip netns exec ioam-node-alpha ping6 -c 5 -W 1 db02::2 &>/dev/null
343 if [ $? != 0 ]
344 then
345 echo "Setup FAILED"
346 cleanup &>/dev/null
347 exit 0
348 fi
349}
350
351log_test_passed()
352{
353 local desc=$1
354 printf "TEST: %-60s [ OK ]\n" "${desc}"
355}
356
357log_test_failed()
358{
359 local desc=$1
360 printf "TEST: %-60s [FAIL]\n" "${desc}"
361}
362
363log_results()
364{
365 echo "- Tests passed: ${npassed}"
366 echo "- Tests failed: ${nfailed}"
367}
368
369run_test()
370{
371 local name=$1
372 local desc=$2
373 local node_src=$3
374 local node_dst=$4
375 local ip6_src=$5
376 local ip6_dst=$6
377 local if_dst=$7
378 local trace_type=$8
379 local ioam_ns=$9
380
381 ip netns exec $node_dst ./ioam6_parser $if_dst $name $ip6_src $ip6_dst \
382 $trace_type $ioam_ns &
383 local spid=$!
384 sleep 0.1
385
386 ip netns exec $node_src ping6 -t 64 -c 1 -W 1 $ip6_dst &>/dev/null
387 if [ $? != 0 ]
388 then
389 nfailed=$((nfailed+1))
390 log_test_failed "${desc}"
391 kill -2 $spid &>/dev/null
392 else
393 wait $spid
394 if [ $? = 0 ]
395 then
396 npassed=$((npassed+1))
397 log_test_passed "${desc}"
398 else
399 nfailed=$((nfailed+1))
400 log_test_failed "${desc}"
401 fi
402 fi
403}
404
405run()
406{
407 echo
408 printf "%0.s-" {1..74}
409 echo
410 echo "OUTPUT tests"
411 printf "%0.s-" {1..74}
412 echo
413
414 # set OUTPUT settings
415 ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=0
416
417 for t in $TESTS_OUTPUT
418 do
419 $t "inline"
420 [ $encap_tests = 0 ] && $t "encap"
421 done
422
423 # clean OUTPUT settings
424 ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1
425 ip -netns ioam-node-alpha route change db01::/64 dev veth0
426
427
428 echo
429 printf "%0.s-" {1..74}
430 echo
431 echo "INPUT tests"
432 printf "%0.s-" {1..74}
433 echo
434
435 # set INPUT settings
436 ip -netns ioam-node-alpha ioam namespace del 123
437
438 for t in $TESTS_INPUT
439 do
440 $t "inline"
441 [ $encap_tests = 0 ] && $t "encap"
442 done
443
444 # clean INPUT settings
445 ip -netns ioam-node-alpha ioam namespace add 123 \
446 data ${ALPHA[6]} wide ${ALPHA[7]}
447 ip -netns ioam-node-alpha ioam namespace set 123 schema ${ALPHA[8]}
448 ip -netns ioam-node-alpha route change db01::/64 dev veth0
449
450 echo
451 printf "%0.s-" {1..74}
452 echo
453 echo "GLOBAL tests"
454 printf "%0.s-" {1..74}
455 echo
456
457 for t in $TESTS_GLOBAL
458 do
459 $t "inline"
460 [ $encap_tests = 0 ] && $t "encap"
461 done
462
463 echo
464 log_results
465}
466
467bit2type=(
468 0x800000 0x400000 0x200000 0x100000 0x080000 0x040000 0x020000 0x010000
469 0x008000 0x004000 0x002000 0x001000 0x000800 0x000400 0x000200 0x000100
470 0x000080 0x000040 0x000020 0x000010 0x000008 0x000004 0x000002
471)
472bit2size=( 4 4 4 4 4 4 4 4 8 8 8 4 4 4 4 4 4 4 4 4 4 4 4 )
473
474
475################################################################################
476# #
477# OUTPUT tests #
478# #
479# Two nodes (sender/receiver), IOAM disabled on ingress for the receiver. #
480################################################################################
481
482out_undef_ns()
483{
484 ##############################################################################
485 # Make sure that the encap node won't fill the trace if the chosen IOAM #
486 # namespace is not configured locally. #
487 ##############################################################################
488 local desc="Unknown IOAM namespace"
489
490 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
491 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
492
493 ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
494 trace prealloc type 0x800000 ns 0 size 4 dev veth0
495
496 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
497 db01::2 db01::1 veth0 0x800000 0
498
499 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
500}
501
502out_no_room()
503{
504 ##############################################################################
505 # Make sure that the encap node won't fill the trace and will set the #
506 # Overflow flag since there is no room enough for its data. #
507 ##############################################################################
508 local desc="Missing trace room"
509
510 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
511 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
512
513 ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
514 trace prealloc type 0xc00000 ns 123 size 4 dev veth0
515
516 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
517 db01::2 db01::1 veth0 0xc00000 123
518
519 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
520}
521
522out_bits()
523{
524 ##############################################################################
525 # Make sure that, for each trace type bit, the encap node will either: #
526 # (i) fill the trace with its data when it is a supported bit #
527 # (ii) not fill the trace with its data when it is an unsupported bit #
528 ##############################################################################
529 local desc="Trace type with bit <n> only"
530
531 local tmp=${bit2size[22]}
532 bit2size[22]=$(( $tmp + ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) ))
533
534 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
535 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
536
537 for i in {0..22}
538 do
539 ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
540 trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \
541 dev veth0 &>/dev/null
542
543 local cmd_res=$?
544 local descr="${desc/<n>/$i}"
545
546 if [[ $i -ge 12 && $i -le 21 ]]
547 then
548 if [ $cmd_res != 0 ]
549 then
550 npassed=$((npassed+1))
551 log_test_passed "$descr"
552 else
553 nfailed=$((nfailed+1))
554 log_test_failed "$descr"
555 fi
556 else
557 run_test "out_bit$i" "$descr ($1 mode)" ioam-node-alpha \
558 ioam-node-beta db01::2 db01::1 veth0 ${bit2type[$i]} 123
559 fi
560 done
561
562 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
563
564 bit2size[22]=$tmp
565}
566
567out_full_supp_trace()
568{
569 ##############################################################################
570 # Make sure that the encap node will correctly fill a full trace. Be careful,#
571 # "full trace" here does NOT mean all bits (only supported ones). #
572 ##############################################################################
573 local desc="Full supported trace"
574
575 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
576 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
577
578 ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
579 trace prealloc type 0xfff002 ns 123 size 100 dev veth0
580
581 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
582 db01::2 db01::1 veth0 0xfff002 123
583
584 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
585}
586
587
588################################################################################
589# #
590# INPUT tests #
591# #
592# Two nodes (sender/receiver), the sender MUST NOT fill the trace upon #
593# insertion -> the IOAM namespace configured on the sender is removed #
594# and is used in the inserted trace to force the sender not to fill it. #
595################################################################################
596
597in_undef_ns()
598{
599 ##############################################################################
600 # Make sure that the receiving node won't fill the trace if the related IOAM #
601 # namespace is not configured locally. #
602 ##############################################################################
603 local desc="Unknown IOAM namespace"
604
605 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
606 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
607
608 ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
609 trace prealloc type 0x800000 ns 0 size 4 dev veth0
610
611 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
612 db01::2 db01::1 veth0 0x800000 0
613
614 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
615}
616
617in_no_room()
618{
619 ##############################################################################
620 # Make sure that the receiving node won't fill the trace and will set the #
621 # Overflow flag if there is no room enough for its data. #
622 ##############################################################################
623 local desc="Missing trace room"
624
625 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
626 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
627
628 ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
629 trace prealloc type 0xc00000 ns 123 size 4 dev veth0
630
631 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
632 db01::2 db01::1 veth0 0xc00000 123
633
634 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
635}
636
637in_bits()
638{
639 ##############################################################################
640 # Make sure that, for each trace type bit, the receiving node will either: #
641 # (i) fill the trace with its data when it is a supported bit #
642 # (ii) not fill the trace with its data when it is an unsupported bit #
643 ##############################################################################
644 local desc="Trace type with bit <n> only"
645
646 local tmp=${bit2size[22]}
647 bit2size[22]=$(( $tmp + ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) ))
648
649 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
650 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
651
652 for i in {0..11} {22..22}
653 do
654 ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
655 trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \
656 dev veth0
657
658 run_test "in_bit$i" "${desc/<n>/$i} ($1 mode)" ioam-node-alpha \
659 ioam-node-beta db01::2 db01::1 veth0 ${bit2type[$i]} 123
660 done
661
662 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
663
664 bit2size[22]=$tmp
665}
666
667in_oflag()
668{
669 ##############################################################################
670 # Make sure that the receiving node won't fill the trace since the Overflow #
671 # flag is set. #
672 ##############################################################################
673 local desc="Overflow flag is set"
674
675 # Exception:
676 # Here, we need the sender to set the Overflow flag. For that, we will add
677 # back the IOAM namespace that was previously configured on the sender.
678 ip -netns ioam-node-alpha ioam namespace add 123
679
680 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
681 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
682
683 ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
684 trace prealloc type 0xc00000 ns 123 size 4 dev veth0
685
686 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
687 db01::2 db01::1 veth0 0xc00000 123
688
689 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
690
691 # And we clean the exception for this test to get things back to normal for
692 # other INPUT tests
693 ip -netns ioam-node-alpha ioam namespace del 123
694}
695
696in_full_supp_trace()
697{
698 ##############################################################################
699 # Make sure that the receiving node will correctly fill a full trace. Be #
700 # careful, "full trace" here does NOT mean all bits (only supported ones). #
701 ##############################################################################
702 local desc="Full supported trace"
703
704 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
705 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
706
707 ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
708 trace prealloc type 0xfff002 ns 123 size 80 dev veth0
709
710 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
711 db01::2 db01::1 veth0 0xfff002 123
712
713 [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
714}
715
716
717################################################################################
718# #
719# GLOBAL tests #
720# #
721# Three nodes (sender/router/receiver), IOAM fully enabled on every node. #
722################################################################################
723
724fwd_full_supp_trace()
725{
726 ##############################################################################
727 # Make sure that all three nodes correctly filled the full supported trace #
728 # by checking that the trace data is consistent with the predefined config. #
729 ##############################################################################
730 local desc="Forward - Full supported trace"
731
732 [ "$1" = "encap" ] && mode="$1 tundst db02::2" || mode="$1"
733 [ "$1" = "encap" ] && ip -netns ioam-node-gamma link set ip6tnl0 up
734
735 ip -netns ioam-node-alpha route change db02::/64 encap ioam6 mode $mode \
736 trace prealloc type 0xfff002 ns 123 size 244 via db01::1 dev veth0
737
738 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-gamma \
739 db01::2 db02::2 veth0 0xfff002 123
740
741 [ "$1" = "encap" ] && ip -netns ioam-node-gamma link set ip6tnl0 down
742}
743
744
745################################################################################
746# #
747# MAIN #
748# #
749################################################################################
750
751npassed=0
752nfailed=0
753
754if [ "$(id -u)" -ne 0 ]
755then
756 echo "SKIP: Need root privileges"
757 exit $ksft_skip
758fi
759
760if [ ! -x "$(command -v ip)" ]
761then
762 echo "SKIP: Could not run test without ip tool"
763 exit $ksft_skip
764fi
765
766ip ioam &>/dev/null
767if [ $? = 1 ]
768then
769 echo "SKIP: iproute2 too old, missing ioam command"
770 exit $ksft_skip
771fi
772
773check_kernel_compatibility
774
775cleanup &>/dev/null
776setup
777run
778cleanup &>/dev/null