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 120source lib.sh 121 122################################################################################ 123# # 124# WARNING: Be careful if you modify the block below - it MUST be kept # 125# synchronized with configurations inside ioam6_parser.c and always # 126# reflect the same. # 127# # 128################################################################################ 129 130ALPHA=( 131 1 # ID 132 11111111 # Wide ID 133 0xffff # Ingress ID 134 0xffffffff # Ingress Wide ID 135 101 # Egress ID 136 101101 # Egress Wide ID 137 0xdeadbee0 # Namespace Data 138 0xcafec0caf00dc0de # Namespace Wide Data 139 777 # Schema ID (0xffffff = None) 140 "something that will be 4n-aligned" # Schema Data 141) 142 143BETA=( 144 2 145 22222222 146 201 147 201201 148 202 149 202202 150 0xdeadbee1 151 0xcafec0caf11dc0de 152 666 153 "Hello there -Obi" 154) 155 156GAMMA=( 157 3 158 33333333 159 301 160 301301 161 0xffff 162 0xffffffff 163 0xdeadbee2 164 0xcafec0caf22dc0de 165 0xffffff 166 "" 167) 168 169TESTS_OUTPUT=" 170 out_undef_ns 171 out_no_room 172 out_bits 173 out_full_supp_trace 174" 175 176TESTS_INPUT=" 177 in_undef_ns 178 in_no_room 179 in_oflag 180 in_bits 181 in_full_supp_trace 182" 183 184TESTS_GLOBAL=" 185 fwd_full_supp_trace 186" 187 188 189################################################################################ 190# # 191# LIBRARY # 192# # 193################################################################################ 194 195check_kernel_compatibility() 196{ 197 setup_ns ioam_tmp_node 198 ip link add name veth0 netns $ioam_tmp_node type veth \ 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 $ioam_tmp_node ioam namespace add 0 205 ns_ad=$? 206 207 ip -netns $ioam_tmp_node ioam namespace show | grep -q "namespace 0" 208 ns_sh=$? 209 210 if [[ $ns_ad != 0 || $ns_sh != 0 ]] 211 then 212 echo "SKIP: kernel version probably too old, missing ioam support" 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 $ioam_tmp_node route add db02::/64 encap ioam6 mode inline \ 219 trace prealloc type 0x800000 ns 0 size 4 dev veth0 220 tr_ad=$? 221 222 ip -netns $ioam_tmp_node -6 route | grep -q "encap ioam6" 223 tr_sh=$? 224 225 if [[ $tr_ad != 0 || $tr_sh != 0 ]] 226 then 227 echo "SKIP: cannot attach an ioam trace to a route, did you compile" \ 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 neither as a module nor inside the" \ 256 "kernel, tests that require it (encap mode) will be omitted" 257 fi 258 fi 259 fi 260} 261 262cleanup() 263{ 264 ip link del ioam-veth-alpha 2>/dev/null || true 265 ip link del ioam-veth-gamma 2>/dev/null || true 266 267 cleanup_ns $ioam_node_alpha $ioam_node_beta $ioam_node_gamma || true 268 269 if [ $ip6tnl_loaded != 0 ] 270 then 271 modprobe -r ip6_tunnel 2>/dev/null || true 272 fi 273} 274 275setup() 276{ 277 setup_ns ioam_node_alpha ioam_node_beta ioam_node_gamma 278 279 ip link add name ioam-veth-alpha netns $ioam_node_alpha type veth \ 280 peer name ioam-veth-betaL netns $ioam_node_beta 281 ip link add name ioam-veth-betaR netns $ioam_node_beta type veth \ 282 peer name ioam-veth-gamma netns $ioam_node_gamma 283 284 ip -netns $ioam_node_alpha link set ioam-veth-alpha name veth0 285 ip -netns $ioam_node_beta link set ioam-veth-betaL name veth0 286 ip -netns $ioam_node_beta link set ioam-veth-betaR name veth1 287 ip -netns $ioam_node_gamma link set ioam-veth-gamma name veth0 288 289 ip -netns $ioam_node_alpha addr add db01::2/64 dev veth0 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::/64 via db01::1 dev veth0 293 ip -netns $ioam_node_alpha route del db01::/64 294 ip -netns $ioam_node_alpha route add db01::/64 dev veth0 295 296 ip -netns $ioam_node_beta addr add db01::1/64 dev veth0 297 ip -netns $ioam_node_beta addr add db02::1/64 dev veth1 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::2/64 dev veth0 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::/64 via db02::1 dev veth0 306 307 # - IOAM config - 308 ip netns exec $ioam_node_alpha sysctl -wq net.ipv6.ioam6_id=${ALPHA[0]} 309 ip netns exec $ioam_node_alpha sysctl -wq net.ipv6.ioam6_id_wide=${ALPHA[1]} 310 ip netns exec $ioam_node_alpha sysctl -wq net.ipv6.conf.veth0.ioam6_id=${ALPHA[4]} 311 ip netns exec $ioam_node_alpha sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${ALPHA[5]} 312 ip -netns $ioam_node_alpha ioam namespace add 123 data ${ALPHA[6]} wide ${ALPHA[7]} 313 ip -netns $ioam_node_alpha ioam schema add ${ALPHA[8]} "${ALPHA[9]}" 314 ip -netns $ioam_node_alpha ioam namespace set 123 schema ${ALPHA[8]} 315 316 ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.all.forwarding=1 317 ip netns exec $ioam_node_beta sysctl -wq net.ipv6.ioam6_id=${BETA[0]} 318 ip netns exec $ioam_node_beta sysctl -wq net.ipv6.ioam6_id_wide=${BETA[1]} 319 ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 320 ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth0.ioam6_id=${BETA[2]} 321 ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${BETA[3]} 322 ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth1.ioam6_id=${BETA[4]} 323 ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth1.ioam6_id_wide=${BETA[5]} 324 ip -netns $ioam_node_beta ioam namespace add 123 data ${BETA[6]} wide ${BETA[7]} 325 ip -netns $ioam_node_beta ioam schema add ${BETA[8]} "${BETA[9]}" 326 ip -netns $ioam_node_beta ioam namespace set 123 schema ${BETA[8]} 327 328 ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.ioam6_id=${GAMMA[0]} 329 ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.ioam6_id_wide=${GAMMA[1]} 330 ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 331 ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.conf.veth0.ioam6_id=${GAMMA[2]} 332 ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${GAMMA[3]} 333 ip -netns $ioam_node_gamma ioam namespace add 123 data ${GAMMA[6]} wide ${GAMMA[7]} 334 335 sleep 1 336 337 ip netns exec $ioam_node_alpha ping6 -c 5 -W 1 db02::2 &>/dev/null 338 if [ $? != 0 ] 339 then 340 echo "Setup FAILED" 341 cleanup &>/dev/null 342 exit 0 343 fi 344} 345 346log_test_passed() 347{ 348 local desc=$1 349 printf "TEST: %-60s [ OK ]\n" "${desc}" 350} 351 352log_test_failed() 353{ 354 local desc=$1 355 printf "TEST: %-60s [FAIL]\n" "${desc}" 356} 357 358log_results() 359{ 360 echo "- Tests passed: ${npassed}" 361 echo "- Tests failed: ${nfailed}" 362} 363 364run_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 $trace_type $ioam_ns $type & 376 local spid=$! 377 sleep 0.1 378 379 ip netns exec $node_src ping6 -t 64 -c 1 -W 1 $ip6_dst &>/dev/null 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 398run() 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.ipv6.conf.veth0.ioam6_enabled=0 409 410 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.ipv6.conf.veth0.ioam6_enabled=1 418 ip -netns $ioam_node_alpha route change db01::/64 dev veth0 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 del 123 430 431 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 add 123 \ 439 data ${ALPHA[6]} wide ${ALPHA[7]} 440 ip -netns $ioam_node_alpha ioam namespace set 123 schema ${ALPHA[8]} 441 ip -netns $ioam_node_alpha route change db01::/64 dev veth0 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 460bit2type=( 461 0x800000 0x400000 0x200000 0x100000 0x080000 0x040000 0x020000 0x010000 462 0x008000 0x004000 0x002000 0x001000 0x000800 0x000400 0x000200 0x000100 463 0x000080 0x000040 0x000020 0x000010 0x000008 0x000004 0x000002 464) 465bit2size=( 4 4 4 4 4 4 4 4 8 8 8 4 4 4 4 4 4 4 4 4 4 4 4 ) 466 467 468################################################################################ 469# # 470# OUTPUT tests # 471# # 472# Two nodes (sender/receiver), IOAM disabled on ingress for the receiver. # 473################################################################################ 474 475out_undef_ns() 476{ 477 ############################################################################## 478 # Make sure that the encap node won't fill the trace if the chosen IOAM # 479 # namespace is not configured locally. # 480 ############################################################################## 481 local desc="Unknown IOAM namespace" 482 483 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" 484 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up 485 486 ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ 487 trace prealloc type 0x800000 ns 0 size 4 dev veth0 488 489 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ 490 db01::1 0x800000 0 $1 491 492 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down 493} 494 495out_no_room() 496{ 497 ############################################################################## 498 # Make sure that the encap node won't fill the trace and will set the # 499 # Overflow flag since there is no room enough for its data. # 500 ############################################################################## 501 local desc="Missing trace room" 502 503 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" 504 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up 505 506 ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ 507 trace prealloc type 0xc00000 ns 123 size 4 dev veth0 508 509 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ 510 db01::1 0xc00000 123 $1 511 512 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down 513} 514 515out_bits() 516{ 517 ############################################################################## 518 # Make sure that, for each trace type bit, the encap node will either: # 519 # (i) fill the trace with its data when it is a supported bit # 520 # (ii) not fill the trace with its data when it is an unsupported bit # 521 ############################################################################## 522 local desc="Trace type with bit <n> only" 523 524 local tmp=${bit2size[22]} 525 bit2size[22]=$(( $tmp + ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) )) 526 527 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" 528 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up 529 530 for i in {0..22} 531 do 532 ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ 533 trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$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)" $ioam_node_alpha \ 551 $ioam_node_beta db01::1 ${bit2type[$i]} 123 $1 552 fi 553 done 554 555 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down 556 557 bit2size[22]=$tmp 558} 559 560out_full_supp_trace() 561{ 562 ############################################################################## 563 # Make sure that the encap node will correctly fill a full trace. Be careful,# 564 # "full trace" here does NOT mean all bits (only supported ones). # 565 ############################################################################## 566 local desc="Full supported trace" 567 568 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" 569 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up 570 571 ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ 572 trace prealloc type 0xfff002 ns 123 size 100 dev veth0 573 574 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ 575 db01::1 0xfff002 123 $1 576 577 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down 578} 579 580 581################################################################################ 582# # 583# INPUT tests # 584# # 585# Two nodes (sender/receiver), the sender MUST NOT fill the trace upon # 586# insertion -> the IOAM namespace configured on the sender is removed # 587# and is used in the inserted trace to force the sender not to fill it. # 588################################################################################ 589 590in_undef_ns() 591{ 592 ############################################################################## 593 # Make sure that the receiving node won't fill the trace if the related IOAM # 594 # namespace is not configured locally. # 595 ############################################################################## 596 local desc="Unknown IOAM namespace" 597 598 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" 599 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up 600 601 ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ 602 trace prealloc type 0x800000 ns 0 size 4 dev veth0 603 604 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ 605 db01::1 0x800000 0 $1 606 607 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down 608} 609 610in_no_room() 611{ 612 ############################################################################## 613 # Make sure that the receiving node won't fill the trace and will set the # 614 # Overflow flag if there is no room enough for its data. # 615 ############################################################################## 616 local desc="Missing trace room" 617 618 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" 619 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up 620 621 ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ 622 trace prealloc type 0xc00000 ns 123 size 4 dev veth0 623 624 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ 625 db01::1 0xc00000 123 $1 626 627 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down 628} 629 630in_bits() 631{ 632 ############################################################################## 633 # Make sure that, for each trace type bit, the receiving node will either: # 634 # (i) fill the trace with its data when it is a supported bit # 635 # (ii) not fill the trace with its data when it is an unsupported bit # 636 ############################################################################## 637 local desc="Trace type with bit <n> only" 638 639 local tmp=${bit2size[22]} 640 bit2size[22]=$(( $tmp + ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) )) 641 642 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" 643 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up 644 645 for i in {0..11} {22..22} 646 do 647 ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ 648 trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \ 649 dev veth0 650 651 run_test "in_bit$i" "${desc/<n>/$i} ($1 mode)" $ioam_node_alpha \ 652 $ioam_node_beta db01::1 ${bit2type[$i]} 123 $1 653 done 654 655 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down 656 657 bit2size[22]=$tmp 658} 659 660in_oflag() 661{ 662 ############################################################################## 663 # Make sure that the receiving node won't fill the trace since the Overflow # 664 # flag is set. # 665 ############################################################################## 666 local desc="Overflow flag is set" 667 668 # Exception: 669 # Here, we need the sender to set the Overflow flag. For that, we will add 670 # back the IOAM namespace that was previously configured on the sender. 671 ip -netns $ioam_node_alpha ioam namespace add 123 672 673 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" 674 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up 675 676 ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ 677 trace prealloc type 0xc00000 ns 123 size 4 dev veth0 678 679 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ 680 db01::1 0xc00000 123 $1 681 682 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down 683 684 # And we clean the exception for this test to get things back to normal for 685 # other INPUT tests 686 ip -netns $ioam_node_alpha ioam namespace del 123 687} 688 689in_full_supp_trace() 690{ 691 ############################################################################## 692 # Make sure that the receiving node will correctly fill a full trace. Be # 693 # careful, "full trace" here does NOT mean all bits (only supported ones). # 694 ############################################################################## 695 local desc="Full supported trace" 696 697 [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" 698 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up 699 700 ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ 701 trace prealloc type 0xfff002 ns 123 size 80 dev veth0 702 703 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ 704 db01::1 0xfff002 123 $1 705 706 [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down 707} 708 709 710################################################################################ 711# # 712# GLOBAL tests # 713# # 714# Three nodes (sender/router/receiver), IOAM fully enabled on every node. # 715################################################################################ 716 717fwd_full_supp_trace() 718{ 719 ############################################################################## 720 # Make sure that all three nodes correctly filled the full supported trace # 721 # by checking that the trace data is consistent with the predefined config. # 722 ############################################################################## 723 local desc="Forward - Full supported trace" 724 725 [ "$1" = "encap" ] && mode="$1 tundst db02::2" || mode="$1" 726 [ "$1" = "encap" ] && ip -netns $ioam_node_gamma link set ip6tnl0 up 727 728 ip -netns $ioam_node_alpha route change db02::/64 encap ioam6 mode $mode \ 729 trace prealloc type 0xfff002 ns 123 size 244 via db01::1 dev veth0 730 731 run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_gamma \ 732 db02::2 0xfff002 123 $1 733 734 [ "$1" = "encap" ] && ip -netns $ioam_node_gamma link set ip6tnl0 down 735} 736 737 738################################################################################ 739# # 740# MAIN # 741# # 742################################################################################ 743 744npassed=0 745nfailed=0 746 747if [ "$(id -u)" -ne 0 ] 748then 749 echo "SKIP: Need root privileges" 750 exit $ksft_skip 751fi 752 753if [ ! -x "$(command -v ip)" ] 754then 755 echo "SKIP: Could not run test without ip tool" 756 exit $ksft_skip 757fi 758 759ip ioam &>/dev/null 760if [ $? = 1 ] 761then 762 echo "SKIP: iproute2 too old, missing ioam command" 763 exit $ksft_skip 764fi 765 766check_kernel_compatibility 767 768cleanup &>/dev/null 769setup 770run 771cleanup &>/dev/null 772