diff options
Diffstat (limited to 'tools/testing/selftests/net/ioam6.sh')
| -rwxr-xr-x[-rw-r--r--] | tools/testing/selftests/net/ioam6.sh | 685 |
1 files changed, 520 insertions, 165 deletions
diff --git a/tools/testing/selftests/net/ioam6.sh b/tools/testing/selftests/net/ioam6.sh index bcf15487e584..3caf72bb9c6a 100644..100755 --- a/tools/testing/selftests/net/ioam6.sh +++ b/tools/testing/selftests/net/ioam6.sh @@ -3,137 +3,128 @@ # # Author: Justin Iurman <justin.iurman@uliege.be> # -# This test evaluates the IOAM insertion for IPv6 by checking the IOAM data -# integrity on the receiver. +# 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 the 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. # -# The topology is formed by 3 nodes: Alpha (sender), Beta (router in-between) -# and Gamma (receiver). An IOAM domain is configured from Alpha to Gamma only, -# which means not on the reverse path. When Gamma is the destination, Alpha -# adds an IOAM option (Pre-allocated Trace) inside a Hop-by-hop and fills the -# trace with its own IOAM data. Beta and Gamma also fill the trace. The IOAM -# data integrity is checked on Gamma, by comparing with the pre-defined IOAM -# configuration (see 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 netns | | Gamma netns | +# | | | | +# | +-------------+ | | +-------------+ | +# | | veth0 | | | | veth0 | | +# | | db01::2/64 | | | | db02::2/64 | | +# | +-------------+ | | +-------------+ | +# | . | | . | +# +-------------------+ +-------------------+ +# . . +# . . +# . . +# +----------------------------------------------------+ +# | . . | +# | +-------------+ +-------------+ | +# | | veth0 | | veth1 | | +# | | db01::1/64 | ................ | db02::1/64 | | +# | +-------------+ +-------------+ | +# | | +# | Beta netns | +# | | +# +----------------------------------------------------+ # -# ~~~~~~~~~~~~~~~~~~~~~~ -# | IOAM configuration | -# ~~~~~~~~~~~~~~~~~~~~~~ # -# Alpha -# +-----------------------------------------------------------+ -# | Type | Value | -# +-----------------------------------------------------------+ -# | 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 | -# +-----------------------------------------------------------+ # -# Note: When Gamma is the destination, Alpha adds an IOAM Pre-allocated Trace -# option inside a Hop-by-hop, where 164 bytes are pre-allocated for the -# trace, with 123 as the IOAM-Namespace and with 0xfff00200 as the trace -# type (= all available options at this time). As a result, and based on -# IOAM configurations here, only both Alpha and Beta should be capable of -# inserting their IOAM data while Gamma won't have enough space and will -# set the overflow bit. +# ============================================================= +# | 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 -# +-----------------------------------------------------------+ -# | Type | Value | -# +-----------------------------------------------------------+ -# | 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 | 0xffffff (= None) | -# +-----------------------------------------------------------+ -# | Schema Data | | -# +-----------------------------------------------------------+ # -# Gamma -# +-----------------------------------------------------------+ -# | Type | Value | -# +-----------------------------------------------------------+ -# | 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 | | -# +-----------------------------------------------------------+ - -#=============================================================================== +# ============================================================= +# | 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 | +# +-----------------------------------------------------------+ # -# WARNING: -# Do NOT modify the following configuration unless you know what you're doing. # -IOAM_NAMESPACE=123 -IOAM_TRACE_TYPE=0xfff00200 -IOAM_PREALLOC_DATA_SIZE=164 +# ============================================================= +# | 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 @@ -157,8 +148,8 @@ BETA=( 202202 0xdeadbee1 0xcafec0caf11dc0de - 0xffffff - "" + 666 + "Hello there -Obi" ) GAMMA=( @@ -173,28 +164,75 @@ GAMMA=( 0xffffff "" ) -#=============================================================================== -if [ "$(id -u)" -ne 0 ]; then - echo "SKIP: Need root privileges" - exit 1 -fi +TESTS_OUTPUT=" + out_undef_ns + out_no_room + out_bits + out_full_supp_trace +" -if [ ! -x "$(command -v ip)" ]; then - echo "SKIP: Could not run test without ip tool" - exit 1 -fi +TESTS_INPUT=" + in_undef_ns + in_no_room + in_oflag + in_bits + in_full_supp_trace +" -ip ioam &>/dev/null -if [ $? = 1 ]; then - echo "SKIP: ip tool must include IOAM" - exit 1 -fi +TESTS_GLOBAL=" + fwd_full_supp_trace +" -if [ ! -e /proc/sys/net/ipv6/ioam6_id ]; then - echo "SKIP: ioam6 sysctls do not exist" - exit 1 -fi + +################################################################################ +# # +# LIBRARY # +# # +################################################################################ + +check_kernel_compatibility() +{ + ip netns add ioam-tmp-node + ip link add name veth0 netns ioam-tmp-node type veth \ + peer name veth1 netns ioam-tmp-node + + ip -netns ioam-tmp-node link set veth0 up + ip -netns ioam-tmp-node link set veth1 up + + ip -netns ioam-tmp-node ioam namespace add 0 &>/dev/null + ns_ad=$? + + ip -netns ioam-tmp-node ioam namespace show | grep -q "namespace 0" + ns_sh=$? + + if [[ $ns_ad != 0 || $ns_sh != 0 ]] + then + echo "SKIP: kernel version probably too old, missing ioam support" + ip link del veth0 2>/dev/null || true + ip netns del ioam-tmp-node || true + exit 1 + fi + + ip -netns ioam-tmp-node route add db02::/64 encap ioam6 trace prealloc \ + type 0x800000 ns 0 size 4 dev veth0 &>/dev/null + tr_ad=$? + + ip -netns ioam-tmp-node -6 route | grep -q "encap ioam6 trace" + 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 +} cleanup() { @@ -212,13 +250,10 @@ setup() ip netns add ioam-node-beta ip netns add ioam-node-gamma - ip link add name ioam-veth-alpha type veth peer name ioam-veth-betaL - ip link add name ioam-veth-betaR type veth peer name ioam-veth-gamma - - ip link set ioam-veth-alpha netns ioam-node-alpha - ip link set ioam-veth-betaL netns ioam-node-beta - ip link set ioam-veth-betaR netns ioam-node-beta - ip link set ioam-veth-gamma netns 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 @@ -228,7 +263,9 @@ setup() 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 default via db01::1 + 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 @@ -239,17 +276,16 @@ setup() 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 default via db02::1 + 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 ${IOAM_NAMESPACE} data ${ALPHA[6]} wide ${ALPHA[7]} + 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 ${IOAM_NAMESPACE} schema ${ALPHA[8]} - ip -netns ioam-node-alpha route add db02::/64 encap ioam6 trace type ${IOAM_TRACE_TYPE:0:-2} ns ${IOAM_NAMESPACE} size ${IOAM_PREALLOC_DATA_SIZE} via db01::1 dev veth0 + 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]} @@ -259,38 +295,357 @@ setup() 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 ${IOAM_NAMESPACE} data ${BETA[6]} wide ${BETA[7]} + 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 ${IOAM_NAMESPACE} data ${GAMMA[6]} wide ${GAMMA[7]} -} + ip -netns ioam-node-gamma ioam namespace add 123 data ${GAMMA[6]} wide ${GAMMA[7]} -run() -{ - echo -n "IOAM test... " + sleep 1 ip netns exec ioam-node-alpha ping6 -c 5 -W 1 db02::2 &>/dev/null - if [ $? != 0 ]; then - echo "FAILED" + if [ $? != 0 ] + then + echo "Setup FAILED" cleanup &>/dev/null exit 0 fi +} - ip netns exec ioam-node-gamma ./ioam6_parser veth0 2 ${IOAM_NAMESPACE} ${IOAM_TRACE_TYPE} 64 ${ALPHA[0]} ${ALPHA[1]} ${ALPHA[2]} ${ALPHA[3]} ${ALPHA[4]} ${ALPHA[5]} ${ALPHA[6]} ${ALPHA[7]} ${ALPHA[8]} "${ALPHA[9]}" 63 ${BETA[0]} ${BETA[1]} ${BETA[2]} ${BETA[3]} ${BETA[4]} ${BETA[5]} ${BETA[6]} ${BETA[7]} ${BETA[8]} & +log_test_passed() +{ + local desc=$1 + printf "TEST: %-60s [ OK ]\n" "${desc}" +} +log_test_failed() +{ + local desc=$1 + printf "TEST: %-60s [FAIL]\n" "${desc}" +} + +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 ioam-node-alpha ping6 -c 5 -W 1 db02::2 &>/dev/null + ip netns exec $node_src ping6 -t 64 -c 1 -W 1 $ip6_dst &>/dev/null + if [ $? != 0 ] + then + log_test_failed "${desc}" + kill -2 $spid &>/dev/null + else + wait $spid + [ $? = 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}" + fi +} + +run() +{ + 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 + 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 + - wait $spid - [ $? = 0 ] && echo "PASSED" || echo "FAILED" + 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 + 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 + echo "GLOBAL tests" + printf "%0.s-" {1..74} + echo + + for t in $TESTS_GLOBAL + do + $t + done } +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" + + ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \ + type 0x800000 ns 0 size 4 dev veth0 + + run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \ + db01::1 veth0 0x800000 0 +} + +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" + + ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \ + type 0xc00000 ns 123 size 4 dev veth0 + + run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \ + db01::1 veth0 0xc00000 123 +} + +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) )) + + for i in {0..22} + do + ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace \ + prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} dev veth0 + + run_test "out_bit$i" "${desc/<n>/$i}" ioam-node-alpha ioam-node-beta \ + db01::2 db01::1 veth0 ${bit2type[$i]} 123 + done + + 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" + + ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \ + type 0xfff002 ns 123 size 100 dev veth0 + + run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \ + db01::1 veth0 0xfff002 123 +} + + +################################################################################ +# # +# 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" + + ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \ + type 0x800000 ns 0 size 4 dev veth0 + + run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \ + db01::1 veth0 0x800000 0 +} + +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" + + ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \ + type 0xc00000 ns 123 size 4 dev veth0 + + run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \ + db01::1 veth0 0xc00000 123 +} + +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) )) + + for i in {0..22} + do + ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace \ + prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} dev veth0 + + run_test "in_bit$i" "${desc/<n>/$i}" ioam-node-alpha ioam-node-beta \ + db01::2 db01::1 veth0 ${bit2type[$i]} 123 + done + + 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 + + ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \ + type 0xc00000 ns 123 size 4 dev veth0 + + run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \ + db01::1 veth0 0xc00000 123 + + # 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" + + ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \ + type 0xfff002 ns 123 size 80 dev veth0 + + run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \ + db01::1 veth0 0xfff002 123 +} + + +################################################################################ +# # +# 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" + + ip -netns ioam-node-alpha route change db02::/64 encap ioam6 trace prealloc \ + type 0xfff002 ns 123 size 244 via db01::1 dev veth0 + + run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-gamma db01::2 \ + db02::2 veth0 0xfff002 123 +} + + +################################################################################ +# # +# MAIN # +# # +################################################################################ + +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 |