| #!/bin/bash |
| # SPDX-License-Identifier: GPL-2.0+ |
| # |
| # Author: Justin Iurman <justin.iurman@uliege.be> |
| # |
| # This script evaluates the IOAM insertion for IPv6 by checking the IOAM data |
| # consistency directly inside packets on the receiver side. Tests are divided |
| # into three categories: OUTPUT (evaluates the IOAM processing by the sender), |
| # INPUT (evaluates the IOAM processing by a receiver) and GLOBAL (evaluates |
| # wider use cases that do not fall into the other two categories). Both OUTPUT |
| # and INPUT tests only use a two-node topology (alpha and beta), while GLOBAL |
| # tests use the entire three-node topology (alpha, beta, gamma). Each test is |
| # documented inside its own handler in the code below. |
| # |
| # An IOAM domain is configured from Alpha to Gamma but not on the reverse path. |
| # When either Beta or Gamma is the destination (depending on the test category), |
| # Alpha adds an IOAM option (Pre-allocated Trace) inside a Hop-by-hop. |
| # |
| # |
| # +-------------------+ +-------------------+ |
| # | | | | |
| # | Alpha netns | | Gamma netns | |
| # | | | | |
| # | +-------------+ | | +-------------+ | |
| # | | veth0 | | | | veth0 | | |
| # | | db01::2/64 | | | | db02::2/64 | | |
| # | +-------------+ | | +-------------+ | |
| # | . | | . | |
| # +-------------------+ +-------------------+ |
| # . . |
| # . . |
| # . . |
| # +----------------------------------------------------+ |
| # | . . | |
| # | +-------------+ +-------------+ | |
| # | | veth0 | | veth1 | | |
| # | | db01::1/64 | ................ | db02::1/64 | | |
| # | +-------------+ +-------------+ | |
| # | | |
| # | Beta netns | |
| # | | |
| # +----------------------------------------------------+ |
| # |
| # |
| # |
| # ============================================================= |
| # | Alpha - IOAM configuration | |
| # +===========================================================+ |
| # | Node ID | 1 | |
| # +-----------------------------------------------------------+ |
| # | Node Wide ID | 11111111 | |
| # +-----------------------------------------------------------+ |
| # | Ingress ID | 0xffff (default value) | |
| # +-----------------------------------------------------------+ |
| # | Ingress Wide ID | 0xffffffff (default value) | |
| # +-----------------------------------------------------------+ |
| # | Egress ID | 101 | |
| # +-----------------------------------------------------------+ |
| # | Egress Wide ID | 101101 | |
| # +-----------------------------------------------------------+ |
| # | Namespace Data | 0xdeadbee0 | |
| # +-----------------------------------------------------------+ |
| # | Namespace Wide Data | 0xcafec0caf00dc0de | |
| # +-----------------------------------------------------------+ |
| # | Schema ID | 777 | |
| # +-----------------------------------------------------------+ |
| # | Schema Data | something that will be 4n-aligned | |
| # +-----------------------------------------------------------+ |
| # |
| # |
| # ============================================================= |
| # | Beta - IOAM configuration | |
| # +===========================================================+ |
| # | Node ID | 2 | |
| # +-----------------------------------------------------------+ |
| # | Node Wide ID | 22222222 | |
| # +-----------------------------------------------------------+ |
| # | Ingress ID | 201 | |
| # +-----------------------------------------------------------+ |
| # | Ingress Wide ID | 201201 | |
| # +-----------------------------------------------------------+ |
| # | Egress ID | 202 | |
| # +-----------------------------------------------------------+ |
| # | Egress Wide ID | 202202 | |
| # +-----------------------------------------------------------+ |
| # | Namespace Data | 0xdeadbee1 | |
| # +-----------------------------------------------------------+ |
| # | Namespace Wide Data | 0xcafec0caf11dc0de | |
| # +-----------------------------------------------------------+ |
| # | Schema ID | 666 | |
| # +-----------------------------------------------------------+ |
| # | Schema Data | Hello there -Obi | |
| # +-----------------------------------------------------------+ |
| # |
| # |
| # ============================================================= |
| # | Gamma - IOAM configuration | |
| # +===========================================================+ |
| # | Node ID | 3 | |
| # +-----------------------------------------------------------+ |
| # | Node Wide ID | 33333333 | |
| # +-----------------------------------------------------------+ |
| # | Ingress ID | 301 | |
| # +-----------------------------------------------------------+ |
| # | Ingress Wide ID | 301301 | |
| # +-----------------------------------------------------------+ |
| # | Egress ID | 0xffff (default value) | |
| # +-----------------------------------------------------------+ |
| # | Egress Wide ID | 0xffffffff (default value) | |
| # +-----------------------------------------------------------+ |
| # | Namespace Data | 0xdeadbee2 | |
| # +-----------------------------------------------------------+ |
| # | Namespace Wide Data | 0xcafec0caf22dc0de | |
| # +-----------------------------------------------------------+ |
| # | Schema ID | 0xffffff (= None) | |
| # +-----------------------------------------------------------+ |
| # | Schema Data | | |
| # +-----------------------------------------------------------+ |
| |
| |
| ################################################################################ |
| # # |
| # WARNING: Be careful if you modify the block below - it MUST be kept # |
| # synchronized with configurations inside ioam6_parser.c and always # |
| # reflect the same. # |
| # # |
| ################################################################################ |
| |
| ALPHA=( |
| 1 # ID |
| 11111111 # Wide ID |
| 0xffff # Ingress ID |
| 0xffffffff # Ingress Wide ID |
| 101 # Egress ID |
| 101101 # Egress Wide ID |
| 0xdeadbee0 # Namespace Data |
| 0xcafec0caf00dc0de # Namespace Wide Data |
| 777 # Schema ID (0xffffff = None) |
| "something that will be 4n-aligned" # Schema Data |
| ) |
| |
| BETA=( |
| 2 |
| 22222222 |
| 201 |
| 201201 |
| 202 |
| 202202 |
| 0xdeadbee1 |
| 0xcafec0caf11dc0de |
| 666 |
| "Hello there -Obi" |
| ) |
| |
| GAMMA=( |
| 3 |
| 33333333 |
| 301 |
| 301301 |
| 0xffff |
| 0xffffffff |
| 0xdeadbee2 |
| 0xcafec0caf22dc0de |
| 0xffffff |
| "" |
| ) |
| |
| TESTS_OUTPUT=" |
| out_undef_ns |
| out_no_room |
| out_bits |
| out_full_supp_trace |
| " |
| |
| TESTS_INPUT=" |
| in_undef_ns |
| in_no_room |
| in_oflag |
| in_bits |
| in_full_supp_trace |
| " |
| |
| TESTS_GLOBAL=" |
| fwd_full_supp_trace |
| " |
| |
| |
| ################################################################################ |
| # # |
| # LIBRARY # |
| # # |
| ################################################################################ |
| |
| check_kernel_compatibility() |
| { |
| ip netns add ioam-tmp-node |
| ip link add name veth0 netns ioam-tmp-node type veth \ |
| peer name veth1 netns ioam-tmp-node |
| |
| ip -netns ioam-tmp-node link set veth0 up |
| ip -netns ioam-tmp-node link set veth1 up |
| |
| ip -netns ioam-tmp-node ioam namespace add 0 |
| ns_ad=$? |
| |
| ip -netns ioam-tmp-node ioam namespace show | grep -q "namespace 0" |
| ns_sh=$? |
| |
| if [[ $ns_ad != 0 || $ns_sh != 0 ]] |
| then |
| echo "SKIP: kernel version probably too old, missing ioam support" |
| ip link del veth0 2>/dev/null || true |
| ip netns del ioam-tmp-node || true |
| exit 1 |
| fi |
| |
| ip -netns ioam-tmp-node route add db02::/64 encap ioam6 mode inline \ |
| trace prealloc type 0x800000 ns 0 size 4 dev veth0 |
| tr_ad=$? |
| |
| ip -netns ioam-tmp-node -6 route | grep -q "encap ioam6" |
| tr_sh=$? |
| |
| if [[ $tr_ad != 0 || $tr_sh != 0 ]] |
| then |
| echo "SKIP: cannot attach an ioam trace to a route, did you compile" \ |
| "without CONFIG_IPV6_IOAM6_LWTUNNEL?" |
| ip link del veth0 2>/dev/null || true |
| ip netns del ioam-tmp-node || true |
| exit 1 |
| fi |
| |
| ip link del veth0 2>/dev/null || true |
| ip netns del ioam-tmp-node || true |
| |
| lsmod | grep -q "ip6_tunnel" |
| ip6tnl_loaded=$? |
| |
| if [ $ip6tnl_loaded = 0 ] |
| then |
| encap_tests=0 |
| else |
| modprobe ip6_tunnel &>/dev/null |
| lsmod | grep -q "ip6_tunnel" |
| encap_tests=$? |
| |
| if [ $encap_tests != 0 ] |
| then |
| ip a | grep -q "ip6tnl0" |
| encap_tests=$? |
| |
| if [ $encap_tests != 0 ] |
| then |
| echo "Note: ip6_tunnel not found neither as a module nor inside the" \ |
| "kernel, tests that require it (encap mode) will be omitted" |
| fi |
| fi |
| fi |
| } |
| |
| cleanup() |
| { |
| ip link del ioam-veth-alpha 2>/dev/null || true |
| ip link del ioam-veth-gamma 2>/dev/null || true |
| |
| ip netns del ioam-node-alpha || true |
| ip netns del ioam-node-beta || true |
| ip netns del ioam-node-gamma || true |
| |
| if [ $ip6tnl_loaded != 0 ] |
| then |
| modprobe -r ip6_tunnel 2>/dev/null || true |
| fi |
| } |
| |
| setup() |
| { |
| ip netns add ioam-node-alpha |
| ip netns add ioam-node-beta |
| ip netns add ioam-node-gamma |
| |
| ip link add name ioam-veth-alpha netns ioam-node-alpha type veth \ |
| peer name ioam-veth-betaL netns ioam-node-beta |
| ip link add name ioam-veth-betaR netns ioam-node-beta type veth \ |
| peer name ioam-veth-gamma netns ioam-node-gamma |
| |
| ip -netns ioam-node-alpha link set ioam-veth-alpha name veth0 |
| ip -netns ioam-node-beta link set ioam-veth-betaL name veth0 |
| ip -netns ioam-node-beta link set ioam-veth-betaR name veth1 |
| ip -netns ioam-node-gamma link set ioam-veth-gamma name veth0 |
| |
| ip -netns ioam-node-alpha addr add db01::2/64 dev veth0 |
| ip -netns ioam-node-alpha link set veth0 up |
| ip -netns ioam-node-alpha link set lo up |
| ip -netns ioam-node-alpha route add db02::/64 via db01::1 dev veth0 |
| ip -netns ioam-node-alpha route del db01::/64 |
| ip -netns ioam-node-alpha route add db01::/64 dev veth0 |
| |
| ip -netns ioam-node-beta addr add db01::1/64 dev veth0 |
| ip -netns ioam-node-beta addr add db02::1/64 dev veth1 |
| ip -netns ioam-node-beta link set veth0 up |
| ip -netns ioam-node-beta link set veth1 up |
| ip -netns ioam-node-beta link set lo up |
| |
| ip -netns ioam-node-gamma addr add db02::2/64 dev veth0 |
| ip -netns ioam-node-gamma link set veth0 up |
| ip -netns ioam-node-gamma link set lo up |
| ip -netns ioam-node-gamma route add db01::/64 via db02::1 dev veth0 |
| |
| # - IOAM config - |
| ip netns exec ioam-node-alpha sysctl -wq net.ipv6.ioam6_id=${ALPHA[0]} |
| ip netns exec ioam-node-alpha sysctl -wq net.ipv6.ioam6_id_wide=${ALPHA[1]} |
| ip netns exec ioam-node-alpha sysctl -wq net.ipv6.conf.veth0.ioam6_id=${ALPHA[4]} |
| ip netns exec ioam-node-alpha sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${ALPHA[5]} |
| ip -netns ioam-node-alpha ioam namespace add 123 data ${ALPHA[6]} wide ${ALPHA[7]} |
| ip -netns ioam-node-alpha ioam schema add ${ALPHA[8]} "${ALPHA[9]}" |
| ip -netns ioam-node-alpha ioam namespace set 123 schema ${ALPHA[8]} |
| |
| ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.all.forwarding=1 |
| ip netns exec ioam-node-beta sysctl -wq net.ipv6.ioam6_id=${BETA[0]} |
| ip netns exec ioam-node-beta sysctl -wq net.ipv6.ioam6_id_wide=${BETA[1]} |
| ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 |
| ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth0.ioam6_id=${BETA[2]} |
| ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${BETA[3]} |
| ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth1.ioam6_id=${BETA[4]} |
| ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth1.ioam6_id_wide=${BETA[5]} |
| ip -netns ioam-node-beta ioam namespace add 123 data ${BETA[6]} wide ${BETA[7]} |
| ip -netns ioam-node-beta ioam schema add ${BETA[8]} "${BETA[9]}" |
| ip -netns ioam-node-beta ioam namespace set 123 schema ${BETA[8]} |
| |
| ip netns exec ioam-node-gamma sysctl -wq net.ipv6.ioam6_id=${GAMMA[0]} |
| ip netns exec ioam-node-gamma sysctl -wq net.ipv6.ioam6_id_wide=${GAMMA[1]} |
| ip netns exec ioam-node-gamma sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 |
| ip netns exec ioam-node-gamma sysctl -wq net.ipv6.conf.veth0.ioam6_id=${GAMMA[2]} |
| ip netns exec ioam-node-gamma sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${GAMMA[3]} |
| ip -netns ioam-node-gamma ioam namespace add 123 data ${GAMMA[6]} wide ${GAMMA[7]} |
| |
| sleep 1 |
| |
| ip netns exec ioam-node-alpha ping6 -c 5 -W 1 db02::2 &>/dev/null |
| if [ $? != 0 ] |
| then |
| echo "Setup FAILED" |
| cleanup &>/dev/null |
| exit 0 |
| fi |
| } |
| |
| log_test_passed() |
| { |
| local desc=$1 |
| printf "TEST: %-60s [ OK ]\n" "${desc}" |
| } |
| |
| log_test_failed() |
| { |
| local desc=$1 |
| printf "TEST: %-60s [FAIL]\n" "${desc}" |
| } |
| |
| log_results() |
| { |
| echo "- Tests passed: ${npassed}" |
| echo "- Tests failed: ${nfailed}" |
| } |
| |
| run_test() |
| { |
| local name=$1 |
| local desc=$2 |
| local node_src=$3 |
| local node_dst=$4 |
| local ip6_src=$5 |
| local ip6_dst=$6 |
| local if_dst=$7 |
| local trace_type=$8 |
| local ioam_ns=$9 |
| |
| ip netns exec $node_dst ./ioam6_parser $if_dst $name $ip6_src $ip6_dst \ |
| $trace_type $ioam_ns & |
| local spid=$! |
| sleep 0.1 |
| |
| ip netns exec $node_src ping6 -t 64 -c 1 -W 1 $ip6_dst &>/dev/null |
| if [ $? != 0 ] |
| then |
| nfailed=$((nfailed+1)) |
| log_test_failed "${desc}" |
| kill -2 $spid &>/dev/null |
| else |
| wait $spid |
| if [ $? = 0 ] |
| then |
| npassed=$((npassed+1)) |
| log_test_passed "${desc}" |
| else |
| nfailed=$((nfailed+1)) |
| log_test_failed "${desc}" |
| fi |
| fi |
| } |
| |
| run() |
| { |
| echo |
| printf "%0.s-" {1..74} |
| echo |
| echo "OUTPUT tests" |
| printf "%0.s-" {1..74} |
| echo |
| |
| # set OUTPUT settings |
| ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=0 |
| |
| for t in $TESTS_OUTPUT |
| do |
| $t "inline" |
| [ $encap_tests = 0 ] && $t "encap" |
| done |
| |
| # clean OUTPUT settings |
| ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 |
| ip -netns ioam-node-alpha route change db01::/64 dev veth0 |
| |
| |
| echo |
| printf "%0.s-" {1..74} |
| echo |
| echo "INPUT tests" |
| printf "%0.s-" {1..74} |
| echo |
| |
| # set INPUT settings |
| ip -netns ioam-node-alpha ioam namespace del 123 |
| |
| for t in $TESTS_INPUT |
| do |
| $t "inline" |
| [ $encap_tests = 0 ] && $t "encap" |
| done |
| |
| # clean INPUT settings |
| ip -netns ioam-node-alpha ioam namespace add 123 \ |
| data ${ALPHA[6]} wide ${ALPHA[7]} |
| ip -netns ioam-node-alpha ioam namespace set 123 schema ${ALPHA[8]} |
| ip -netns ioam-node-alpha route change db01::/64 dev veth0 |
| |
| echo |
| printf "%0.s-" {1..74} |
| echo |
| echo "GLOBAL tests" |
| printf "%0.s-" {1..74} |
| echo |
| |
| for t in $TESTS_GLOBAL |
| do |
| $t "inline" |
| [ $encap_tests = 0 ] && $t "encap" |
| done |
| |
| echo |
| log_results |
| } |
| |
| bit2type=( |
| 0x800000 0x400000 0x200000 0x100000 0x080000 0x040000 0x020000 0x010000 |
| 0x008000 0x004000 0x002000 0x001000 0x000800 0x000400 0x000200 0x000100 |
| 0x000080 0x000040 0x000020 0x000010 0x000008 0x000004 0x000002 |
| ) |
| bit2size=( 4 4 4 4 4 4 4 4 8 8 8 4 4 4 4 4 4 4 4 4 4 4 4 ) |
| |
| |
| ################################################################################ |
| # # |
| # OUTPUT tests # |
| # # |
| # Two nodes (sender/receiver), IOAM disabled on ingress for the receiver. # |
| ################################################################################ |
| |
| out_undef_ns() |
| { |
| ############################################################################## |
| # Make sure that the encap node won't fill the trace if the chosen IOAM # |
| # namespace is not configured locally. # |
| ############################################################################## |
| local desc="Unknown IOAM namespace" |
| |
| [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up |
| |
| ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \ |
| trace prealloc type 0x800000 ns 0 size 4 dev veth0 |
| |
| run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \ |
| db01::2 db01::1 veth0 0x800000 0 |
| |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down |
| } |
| |
| out_no_room() |
| { |
| ############################################################################## |
| # Make sure that the encap node won't fill the trace and will set the # |
| # Overflow flag since there is no room enough for its data. # |
| ############################################################################## |
| local desc="Missing trace room" |
| |
| [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up |
| |
| ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \ |
| trace prealloc type 0xc00000 ns 123 size 4 dev veth0 |
| |
| run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \ |
| db01::2 db01::1 veth0 0xc00000 123 |
| |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down |
| } |
| |
| out_bits() |
| { |
| ############################################################################## |
| # Make sure that, for each trace type bit, the encap node will either: # |
| # (i) fill the trace with its data when it is a supported bit # |
| # (ii) not fill the trace with its data when it is an unsupported bit # |
| ############################################################################## |
| local desc="Trace type with bit <n> only" |
| |
| local tmp=${bit2size[22]} |
| bit2size[22]=$(( $tmp + ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) )) |
| |
| [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up |
| |
| for i in {0..22} |
| do |
| ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \ |
| trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \ |
| dev veth0 &>/dev/null |
| |
| local cmd_res=$? |
| local descr="${desc/<n>/$i}" |
| |
| if [[ $i -ge 12 && $i -le 21 ]] |
| then |
| if [ $cmd_res != 0 ] |
| then |
| npassed=$((npassed+1)) |
| log_test_passed "$descr" |
| else |
| nfailed=$((nfailed+1)) |
| log_test_failed "$descr" |
| fi |
| else |
| run_test "out_bit$i" "$descr ($1 mode)" ioam-node-alpha \ |
| ioam-node-beta db01::2 db01::1 veth0 ${bit2type[$i]} 123 |
| fi |
| done |
| |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down |
| |
| bit2size[22]=$tmp |
| } |
| |
| out_full_supp_trace() |
| { |
| ############################################################################## |
| # Make sure that the encap node will correctly fill a full trace. Be careful,# |
| # "full trace" here does NOT mean all bits (only supported ones). # |
| ############################################################################## |
| local desc="Full supported trace" |
| |
| [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up |
| |
| ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \ |
| trace prealloc type 0xfff002 ns 123 size 100 dev veth0 |
| |
| run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \ |
| db01::2 db01::1 veth0 0xfff002 123 |
| |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down |
| } |
| |
| |
| ################################################################################ |
| # # |
| # INPUT tests # |
| # # |
| # Two nodes (sender/receiver), the sender MUST NOT fill the trace upon # |
| # insertion -> the IOAM namespace configured on the sender is removed # |
| # and is used in the inserted trace to force the sender not to fill it. # |
| ################################################################################ |
| |
| in_undef_ns() |
| { |
| ############################################################################## |
| # Make sure that the receiving node won't fill the trace if the related IOAM # |
| # namespace is not configured locally. # |
| ############################################################################## |
| local desc="Unknown IOAM namespace" |
| |
| [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up |
| |
| ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \ |
| trace prealloc type 0x800000 ns 0 size 4 dev veth0 |
| |
| run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \ |
| db01::2 db01::1 veth0 0x800000 0 |
| |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down |
| } |
| |
| in_no_room() |
| { |
| ############################################################################## |
| # Make sure that the receiving node won't fill the trace and will set the # |
| # Overflow flag if there is no room enough for its data. # |
| ############################################################################## |
| local desc="Missing trace room" |
| |
| [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up |
| |
| ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \ |
| trace prealloc type 0xc00000 ns 123 size 4 dev veth0 |
| |
| run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \ |
| db01::2 db01::1 veth0 0xc00000 123 |
| |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down |
| } |
| |
| in_bits() |
| { |
| ############################################################################## |
| # Make sure that, for each trace type bit, the receiving node will either: # |
| # (i) fill the trace with its data when it is a supported bit # |
| # (ii) not fill the trace with its data when it is an unsupported bit # |
| ############################################################################## |
| local desc="Trace type with bit <n> only" |
| |
| local tmp=${bit2size[22]} |
| bit2size[22]=$(( $tmp + ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) )) |
| |
| [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up |
| |
| for i in {0..11} {22..22} |
| do |
| ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \ |
| trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \ |
| dev veth0 |
| |
| run_test "in_bit$i" "${desc/<n>/$i} ($1 mode)" ioam-node-alpha \ |
| ioam-node-beta db01::2 db01::1 veth0 ${bit2type[$i]} 123 |
| done |
| |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down |
| |
| bit2size[22]=$tmp |
| } |
| |
| in_oflag() |
| { |
| ############################################################################## |
| # Make sure that the receiving node won't fill the trace since the Overflow # |
| # flag is set. # |
| ############################################################################## |
| local desc="Overflow flag is set" |
| |
| # Exception: |
| # Here, we need the sender to set the Overflow flag. For that, we will add |
| # back the IOAM namespace that was previously configured on the sender. |
| ip -netns ioam-node-alpha ioam namespace add 123 |
| |
| [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up |
| |
| ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \ |
| trace prealloc type 0xc00000 ns 123 size 4 dev veth0 |
| |
| run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \ |
| db01::2 db01::1 veth0 0xc00000 123 |
| |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down |
| |
| # And we clean the exception for this test to get things back to normal for |
| # other INPUT tests |
| ip -netns ioam-node-alpha ioam namespace del 123 |
| } |
| |
| in_full_supp_trace() |
| { |
| ############################################################################## |
| # Make sure that the receiving node will correctly fill a full trace. Be # |
| # careful, "full trace" here does NOT mean all bits (only supported ones). # |
| ############################################################################## |
| local desc="Full supported trace" |
| |
| [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up |
| |
| ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \ |
| trace prealloc type 0xfff002 ns 123 size 80 dev veth0 |
| |
| run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \ |
| db01::2 db01::1 veth0 0xfff002 123 |
| |
| [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down |
| } |
| |
| |
| ################################################################################ |
| # # |
| # GLOBAL tests # |
| # # |
| # Three nodes (sender/router/receiver), IOAM fully enabled on every node. # |
| ################################################################################ |
| |
| fwd_full_supp_trace() |
| { |
| ############################################################################## |
| # Make sure that all three nodes correctly filled the full supported trace # |
| # by checking that the trace data is consistent with the predefined config. # |
| ############################################################################## |
| local desc="Forward - Full supported trace" |
| |
| [ "$1" = "encap" ] && mode="$1 tundst db02::2" || mode="$1" |
| [ "$1" = "encap" ] && ip -netns ioam-node-gamma link set ip6tnl0 up |
| |
| ip -netns ioam-node-alpha route change db02::/64 encap ioam6 mode $mode \ |
| trace prealloc type 0xfff002 ns 123 size 244 via db01::1 dev veth0 |
| |
| run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-gamma \ |
| db01::2 db02::2 veth0 0xfff002 123 |
| |
| [ "$1" = "encap" ] && ip -netns ioam-node-gamma link set ip6tnl0 down |
| } |
| |
| |
| ################################################################################ |
| # # |
| # MAIN # |
| # # |
| ################################################################################ |
| |
| npassed=0 |
| nfailed=0 |
| |
| if [ "$(id -u)" -ne 0 ] |
| then |
| echo "SKIP: Need root privileges" |
| exit 1 |
| fi |
| |
| if [ ! -x "$(command -v ip)" ] |
| then |
| echo "SKIP: Could not run test without ip tool" |
| exit 1 |
| fi |
| |
| ip ioam &>/dev/null |
| if [ $? = 1 ] |
| then |
| echo "SKIP: iproute2 too old, missing ioam command" |
| exit 1 |
| fi |
| |
| check_kernel_compatibility |
| |
| cleanup &>/dev/null |
| setup |
| run |
| cleanup &>/dev/null |
