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-rwxr-xr-xtools/testing/selftests/net/ioam6.sh1683
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diff --git a/tools/testing/selftests/net/ioam6.sh b/tools/testing/selftests/net/ioam6.sh
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+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Author: Justin Iurman <justin.iurman@uliege.be>
+#
+# This script evaluates IOAM for IPv6 by checking local IOAM configurations and
+# IOAM data inside packets. There are three categories of tests: LOCAL, OUTPUT,
+# and INPUT. The former (LOCAL) checks all IOAM related configurations locally
+# without sending packets. OUTPUT tests verify the processing of an IOAM
+# encapsulating node, while INPUT tests verify the processing of an IOAM transit
+# node. Both OUTPUT and INPUT tests send packets. Each test is documented inside
+# its own handler.
+#
+# The topology used for OUTPUT and INPUT tests is made of three nodes:
+# - Alpha (the IOAM encapsulating node)
+# - Beta (the IOAM transit node)
+# - Gamma (the receiver) **
+#
+# An IOAM domain is configured from Alpha to Beta, but not on the reverse path.
+# Alpha adds an IOAM option (Pre-allocated Trace) inside a Hop-by-hop.
+#
+# ** Gamma is required because ioam6_parser.c uses a packet socket and we need
+# to see IOAM data inserted by the very last node (Beta), which would happen
+# _after_ we get a copy of the packet on Beta. Note that using an
+# IPv6 raw socket with IPV6_RECVHOPOPTS on Beta would not be enough: we also
+# need to access the IPv6 header to check some fields (e.g., source and
+# destination addresses), which is not possible in that case. As a
+# consequence, we need Gamma as a receiver to run ioam6_parser.c which uses a
+# packet socket.
+#
+#
+# +-----------------------+ +-----------------------+
+# | | | |
+# | Alpha netns | | Gamma netns |
+# | | | |
+# | +-------------------+ | | +-------------------+ |
+# | | veth0 | | | | veth0 | |
+# | | 2001:db8:1::2/64 | | | | 2001:db8:2::2/64 | |
+# | +-------------------+ | | +-------------------+ |
+# | . | | . |
+# +-----------.-----------+ +-----------.-----------+
+# . .
+# . .
+# . .
+# +-----------.----------------------------------.-----------+
+# | . . |
+# | +-------------------+ +-------------------+ |
+# | | veth0 | | veth1 | |
+# | | 2001:db8:1::1/64 | ............ | 2001:db8:2::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 | 0xdeadbeef |
+# +---------------------+------------------------------------+
+# | 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 | 0xffffffff (default value) |
+# +---------------------+------------------------------------+
+# | Namespace Wide Data | 0xffffffffffffffff (default value) |
+# +---------------------+------------------------------------+
+# | Schema ID | 0xffffff (= None) |
+# +---------------------+------------------------------------+
+# | Schema Data | |
+# +---------------------+------------------------------------+
+
+source lib.sh
+
+################################################################################
+# #
+# 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 (default value)
+ 0xffffffff # Ingress Wide ID (default value)
+ 101 # Egress ID
+ 101101 # Egress Wide ID
+ 0xdeadbeef # Namespace Data
+ 0xcafec0caf00dc0de # Namespace Wide Data
+ 777 # Schema ID
+ "something that will be 4n-aligned" # Schema Data
+)
+
+BETA=(
+ 2 # ID
+ 22222222 # Wide ID
+ 201 # Ingress ID
+ 201201 # Ingress Wide ID
+ 202 # Egress ID
+ 202202 # Egress Wide ID
+ 0xffffffff # Namespace Data (empty value)
+ 0xffffffffffffffff # Namespace Wide Data (empty value)
+ 0xffffff # Schema ID (empty value)
+ "" # Schema Data (empty value)
+)
+
+TESTS_LOCAL="
+ local_sysctl_ioam_id
+ local_sysctl_ioam_id_wide
+ local_sysctl_ioam_intf_id
+ local_sysctl_ioam_intf_id_wide
+ local_sysctl_ioam_intf_enabled
+ local_ioam_namespace
+ local_ioam_schema
+ local_ioam_schema_namespace
+ local_route_ns
+ local_route_tunsrc
+ local_route_tundst
+ local_route_trace_type
+ local_route_trace_size
+ local_route_trace_type_bits
+ local_route_trace_size_values
+"
+
+TESTS_OUTPUT="
+ output_undef_ns
+ output_no_room
+ output_no_room_oss
+ output_bits
+ output_sizes
+ output_full_supp_trace
+"
+
+TESTS_INPUT="
+ input_undef_ns
+ input_no_room
+ input_no_room_oss
+ input_disabled
+ input_oflag
+ input_bits
+ input_sizes
+ input_full_supp_trace
+"
+
+################################################################################
+# #
+# LIBRARY #
+# #
+################################################################################
+
+check_kernel_compatibility()
+{
+ setup_ns ioam_tmp_node &>/dev/null
+ local ret=$?
+
+ ip link add name veth0 netns $ioam_tmp_node type veth \
+ peer name veth1 netns $ioam_tmp_node &>/dev/null
+ ret=$((ret + $?))
+
+ ip -netns $ioam_tmp_node link set veth0 up &>/dev/null
+ ret=$((ret + $?))
+
+ ip -netns $ioam_tmp_node link set veth1 up &>/dev/null
+ ret=$((ret + $?))
+
+ if [ $ret != 0 ]
+ then
+ echo "SKIP: Setup failed."
+ cleanup_ns $ioam_tmp_node
+ exit $ksft_skip
+ fi
+
+ ip -netns $ioam_tmp_node route add 2001:db8:2::/64 \
+ encap ioam6 trace prealloc type 0x800000 ns 0 size 4 dev veth0 &>/dev/null
+ ret=$?
+
+ ip -netns $ioam_tmp_node -6 route 2>/dev/null | grep -q "encap ioam6"
+ ret=$((ret + $?))
+
+ if [ $ret != 0 ]
+ then
+ echo "SKIP: Cannot attach an IOAM trace to a route. Was your kernel" \
+ "compiled without CONFIG_IPV6_IOAM6_LWTUNNEL? Are you running an" \
+ "old kernel? Are you using an old version of iproute2?"
+ cleanup_ns $ioam_tmp_node
+ exit $ksft_skip
+ fi
+
+ cleanup_ns $ioam_tmp_node
+
+ lsmod 2>/dev/null | grep -q "ip6_tunnel"
+ ip6tnl_loaded=$?
+
+ if [ $ip6tnl_loaded == 0 ]
+ then
+ encap_tests=0
+ else
+ modprobe ip6_tunnel &>/dev/null
+ lsmod 2>/dev/null | grep -q "ip6_tunnel"
+ encap_tests=$?
+
+ if [ $encap_tests != 0 ]
+ then
+ ip a 2>/dev/null | grep -q "ip6tnl0"
+ encap_tests=$?
+
+ if [ $encap_tests != 0 ]
+ then
+ echo "Note: ip6_tunnel not found neither as a module nor inside the" \
+ "kernel. Any tests that require it will be skipped."
+ fi
+ fi
+ fi
+}
+
+cleanup()
+{
+ cleanup_ns $ioam_node_alpha $ioam_node_beta $ioam_node_gamma
+
+ if [ $ip6tnl_loaded != 0 ]
+ then
+ modprobe -r ip6_tunnel &>/dev/null
+ fi
+}
+
+setup()
+{
+ setup_ns ioam_node_alpha ioam_node_beta ioam_node_gamma &>/dev/null
+
+ ip link add name ioam-veth-alpha netns $ioam_node_alpha type veth \
+ peer name ioam-veth-betaL netns $ioam_node_beta &>/dev/null
+ ip link add name ioam-veth-betaR netns $ioam_node_beta type veth \
+ peer name ioam-veth-gamma netns $ioam_node_gamma &>/dev/null
+
+ ip -netns $ioam_node_alpha link set ioam-veth-alpha name veth0 &>/dev/null
+ ip -netns $ioam_node_beta link set ioam-veth-betaL name veth0 &>/dev/null
+ ip -netns $ioam_node_beta link set ioam-veth-betaR name veth1 &>/dev/null
+ ip -netns $ioam_node_gamma link set ioam-veth-gamma name veth0 &>/dev/null
+
+ ip -netns $ioam_node_alpha addr add 2001:db8:1::50/64 dev veth0 &>/dev/null
+ ip -netns $ioam_node_alpha addr add 2001:db8:1::2/64 dev veth0 &>/dev/null
+ ip -netns $ioam_node_alpha link set veth0 up &>/dev/null
+ ip -netns $ioam_node_alpha link set lo up &>/dev/null
+ ip -netns $ioam_node_alpha route add 2001:db8:2::/64 \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ ip -netns $ioam_node_beta addr add 2001:db8:1::1/64 dev veth0 &>/dev/null
+ ip -netns $ioam_node_beta addr add 2001:db8:2::1/64 dev veth1 &>/dev/null
+ ip -netns $ioam_node_beta link set veth0 up &>/dev/null
+ ip -netns $ioam_node_beta link set veth1 up &>/dev/null
+ ip -netns $ioam_node_beta link set lo up &>/dev/null
+
+ ip -netns $ioam_node_gamma addr add 2001:db8:2::2/64 dev veth0 &>/dev/null
+ ip -netns $ioam_node_gamma link set veth0 up &>/dev/null
+ ip -netns $ioam_node_gamma link set lo up &>/dev/null
+ ip -netns $ioam_node_gamma route add 2001:db8:1::/64 \
+ via 2001:db8:2::1 dev veth0 &>/dev/null
+
+ # - Alpha: IOAM config -
+ ip netns exec $ioam_node_alpha \
+ sysctl -wq net.ipv6.ioam6_id=${ALPHA[0]} &>/dev/null
+ ip netns exec $ioam_node_alpha \
+ sysctl -wq net.ipv6.ioam6_id_wide=${ALPHA[1]} &>/dev/null
+ ip netns exec $ioam_node_alpha \
+ sysctl -wq net.ipv6.conf.veth0.ioam6_id=${ALPHA[4]} &>/dev/null
+ ip netns exec $ioam_node_alpha \
+ sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${ALPHA[5]} &>/dev/null
+ ip -netns $ioam_node_alpha \
+ ioam namespace add 123 data ${ALPHA[6]} wide ${ALPHA[7]} &>/dev/null
+ ip -netns $ioam_node_alpha \
+ ioam schema add ${ALPHA[8]} "${ALPHA[9]}" &>/dev/null
+ ip -netns $ioam_node_alpha \
+ ioam namespace set 123 schema ${ALPHA[8]} &>/dev/null
+
+ # - Beta: IOAM config -
+ ip netns exec $ioam_node_beta \
+ sysctl -wq net.ipv6.conf.all.forwarding=1 &>/dev/null
+ ip netns exec $ioam_node_beta \
+ sysctl -wq net.ipv6.ioam6_id=${BETA[0]} &>/dev/null
+ ip netns exec $ioam_node_beta \
+ sysctl -wq net.ipv6.ioam6_id_wide=${BETA[1]} &>/dev/null
+ ip netns exec $ioam_node_beta \
+ sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 &>/dev/null
+ ip netns exec $ioam_node_beta \
+ sysctl -wq net.ipv6.conf.veth0.ioam6_id=${BETA[2]} &>/dev/null
+ ip netns exec $ioam_node_beta \
+ sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${BETA[3]} &>/dev/null
+ ip netns exec $ioam_node_beta \
+ sysctl -wq net.ipv6.conf.veth1.ioam6_id=${BETA[4]} &>/dev/null
+ ip netns exec $ioam_node_beta \
+ sysctl -wq net.ipv6.conf.veth1.ioam6_id_wide=${BETA[5]} &>/dev/null
+ ip -netns $ioam_node_beta ioam namespace add 123 &>/dev/null
+
+ sleep 1
+
+ ip netns exec $ioam_node_alpha ping6 -c 5 -W 1 2001:db8:2::2 &>/dev/null
+ if [ $? != 0 ]
+ then
+ echo "SKIP: Setup failed."
+ cleanup
+ exit $ksft_skip
+ fi
+}
+
+log_test_passed()
+{
+ printf " - TEST: %-57s [ OK ]\n" "$1"
+ npassed=$((npassed+1))
+}
+
+log_test_skipped()
+{
+ printf " - TEST: %-57s [SKIP]\n" "$1"
+ nskipped=$((nskipped+1))
+}
+
+log_test_failed()
+{
+ printf " - TEST: %-57s [FAIL]\n" "$1"
+ nfailed=$((nfailed+1))
+}
+
+run_test()
+{
+ local name=$1
+ local desc=$2
+ local ip6_src=$3
+ local trace_type=$4
+ local trace_size=$5
+ local ioam_ns=$6
+ local type=$7
+
+ ip netns exec $ioam_node_gamma \
+ ./ioam6_parser veth0 $name $ip6_src 2001:db8:2::2 \
+ $trace_type $trace_size $ioam_ns $type &
+ local spid=$!
+ sleep 0.1
+
+ ip netns exec $ioam_node_alpha ping6 -t 64 -c 1 -W 1 2001:db8:2::2 &>/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()
+{
+ local test
+
+ echo
+ printf "+"
+ printf "%0.s-" {1..72}
+ printf "+"
+ echo
+ printf "| %-28s LOCAL tests %-29s |"
+ echo
+ printf "+"
+ printf "%0.s-" {1..72}
+ printf "+"
+ echo
+
+ echo
+ echo "Global config"
+ for test in $TESTS_LOCAL
+ do
+ $test
+ done
+
+ echo
+ echo "Inline mode"
+ for test in $TESTS_LOCAL
+ do
+ $test "inline"
+ done
+
+ echo
+ echo "Encap mode"
+ for test in $TESTS_LOCAL
+ do
+ $test "encap"
+ done
+
+ echo
+ printf "+"
+ printf "%0.s-" {1..72}
+ printf "+"
+ echo
+ printf "| %-28s OUTPUT tests %-28s |"
+ echo
+ printf "+"
+ printf "%0.s-" {1..72}
+ printf "+"
+ echo
+
+ # set OUTPUT settings
+ ip netns exec $ioam_node_beta \
+ sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=0 &>/dev/null
+
+ echo
+ echo "Inline mode"
+ for test in $TESTS_OUTPUT
+ do
+ $test "inline"
+ done
+
+ echo
+ echo "Encap mode"
+ for test in $TESTS_OUTPUT
+ do
+ $test "encap"
+ done
+
+ echo
+ echo "Encap mode (with tunsrc)"
+ for test in $TESTS_OUTPUT
+ do
+ $test "encap" "tunsrc"
+ done
+
+ # clean OUTPUT settings
+ ip netns exec $ioam_node_beta \
+ sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 &>/dev/null
+
+ echo
+ printf "+"
+ printf "%0.s-" {1..72}
+ printf "+"
+ echo
+ printf "| %-28s INPUT tests %-29s |"
+ echo
+ printf "+"
+ printf "%0.s-" {1..72}
+ printf "+"
+ echo
+
+ # set INPUT settings
+ ip -netns $ioam_node_alpha ioam namespace del 123 &>/dev/null
+
+ echo
+ echo "Inline mode"
+ for test in $TESTS_INPUT
+ do
+ $test "inline"
+ done
+
+ echo
+ echo "Encap mode"
+ for test in $TESTS_INPUT
+ do
+ $test "encap"
+ done
+
+ # clean INPUT settings
+ ip -netns $ioam_node_alpha \
+ ioam namespace add 123 data ${ALPHA[6]} wide ${ALPHA[7]} &>/dev/null
+ ip -netns $ioam_node_alpha \
+ ioam namespace set 123 schema ${ALPHA[8]} &>/dev/null
+
+ echo
+ printf "+"
+ printf "%0.s-" {1..72}
+ printf "+"
+ echo
+ printf "| %-30s Results %-31s |"
+ echo
+ printf "+"
+ printf "%0.s-" {1..72}
+ printf "+"
+ echo
+
+ echo
+ echo "- Passed: ${npassed}"
+ echo "- Skipped: ${nskipped}"
+ echo "- Failed: ${nfailed}"
+ echo
+}
+
+bit2type=(
+ 0x800000 0x400000 0x200000 0x100000 0x080000 0x040000 0x020000 0x010000
+ 0x008000 0x004000 0x002000 0x001000 0x000800 0x000400 0x000200 0x000100
+ 0x000080 0x000040 0x000020 0x000010 0x000008 0x000004 0x000002 0x000001
+)
+bit2size=( 4 4 4 4 4 4 4 4 8 8 8 4 4 4 4 4 4 4 4 4 4 4 4 0 )
+
+
+################################################################################
+# #
+# LOCAL tests #
+# #
+################################################################################
+
+local_sysctl_ioam_id()
+{
+ ##############################################################################
+ # Make sure the sysctl "net.ipv6.ioam6_id" works as expected. #
+ ##############################################################################
+ local desc="Sysctl net.ipv6.ioam6_id"
+
+ [ ! -z $1 ] && return
+
+ ip netns exec $ioam_node_alpha \
+ sysctl net.ipv6.ioam6_id 2>/dev/null | grep -wq ${ALPHA[0]}
+
+ [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_sysctl_ioam_id_wide()
+{
+ ##############################################################################
+ # Make sure the sysctl "net.ipv6.ioam6_id_wide" works as expected. #
+ ##############################################################################
+ local desc="Sysctl net.ipv6.ioam6_id_wide"
+
+ [ ! -z $1 ] && return
+
+ ip netns exec $ioam_node_alpha \
+ sysctl net.ipv6.ioam6_id_wide 2>/dev/null | grep -wq ${ALPHA[1]}
+
+ [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_sysctl_ioam_intf_id()
+{
+ ##############################################################################
+ # Make sure the sysctl "net.ipv6.conf.XX.ioam6_id" works as expected. #
+ ##############################################################################
+ local desc="Sysctl net.ipv6.conf.XX.ioam6_id"
+
+ [ ! -z $1 ] && return
+
+ ip netns exec $ioam_node_alpha \
+ sysctl net.ipv6.conf.veth0.ioam6_id 2>/dev/null | grep -wq ${ALPHA[4]}
+
+ [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_sysctl_ioam_intf_id_wide()
+{
+ ##############################################################################
+ # Make sure the sysctl "net.ipv6.conf.XX.ioam6_id_wide" works as expected. #
+ ##############################################################################
+ local desc="Sysctl net.ipv6.conf.XX.ioam6_id_wide"
+
+ [ ! -z $1 ] && return
+
+ ip netns exec $ioam_node_alpha \
+ sysctl net.ipv6.conf.veth0.ioam6_id_wide 2>/dev/null | grep -wq ${ALPHA[5]}
+
+ [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_sysctl_ioam_intf_enabled()
+{
+ ##############################################################################
+ # Make sure the sysctl "net.ipv6.conf.XX.ioam6_enabled" works as expected. #
+ ##############################################################################
+ local desc="Sysctl net.ipv6.conf.XX.ioam6_enabled"
+
+ [ ! -z $1 ] && return
+
+ ip netns exec $ioam_node_beta \
+ sysctl net.ipv6.conf.veth0.ioam6_enabled 2>/dev/null | grep -wq 1
+
+ [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_ioam_namespace()
+{
+ ##############################################################################
+ # Make sure the creation of an IOAM Namespace works as expected. #
+ ##############################################################################
+ local desc="Create an IOAM Namespace"
+
+ [ ! -z $1 ] && return
+
+ ip -netns $ioam_node_alpha \
+ ioam namespace show 2>/dev/null | grep -wq 123
+ local ret=$?
+
+ ip -netns $ioam_node_alpha \
+ ioam namespace show 2>/dev/null | grep -wq ${ALPHA[6]}
+ ret=$((ret + $?))
+
+ ip -netns $ioam_node_alpha \
+ ioam namespace show 2>/dev/null | grep -wq ${ALPHA[7]}
+ ret=$((ret + $?))
+
+ [ $ret == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_ioam_schema()
+{
+ ##############################################################################
+ # Make sure the creation of an IOAM Schema works as expected. #
+ ##############################################################################
+ local desc="Create an IOAM Schema"
+
+ [ ! -z $1 ] && return
+
+ ip -netns $ioam_node_alpha \
+ ioam schema show 2>/dev/null | grep -wq ${ALPHA[8]}
+ local ret=$?
+
+ local sc_data=$(
+ for i in `seq 0 $((${#ALPHA[9]}-1))`
+ do
+ chr=${ALPHA[9]:i:1}
+ printf "%x " "'${chr}"
+ done
+ )
+
+ ip -netns $ioam_node_alpha \
+ ioam schema show 2>/dev/null | grep -q "$sc_data"
+ ret=$((ret + $?))
+
+ [ $ret == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_ioam_schema_namespace()
+{
+ ##############################################################################
+ # Make sure the binding of a Schema to a Namespace works as expected. #
+ ##############################################################################
+ local desc="Bind an IOAM Schema to an IOAM Namespace"
+
+ [ ! -z $1 ] && return
+
+ ip -netns $ioam_node_alpha \
+ ioam namespace show 2>/dev/null | grep -wq ${ALPHA[8]}
+ local ret=$?
+
+ ip -netns $ioam_node_alpha \
+ ioam schema show 2>/dev/null | grep -wq 123
+ ret=$((ret + $?))
+
+ [ $ret == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_route_ns()
+{
+ ##############################################################################
+ # Make sure the Namespace-ID is always provided, whatever the mode. #
+ ##############################################################################
+ local desc="Mandatory Namespace-ID"
+ local mode
+
+ [ -z $1 ] && return
+
+ [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1"
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type 0x800000 size 4 \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+ local ret1=$?
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+ local ret2=$?
+
+ [[ $ret1 == 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \
+ || log_test_passed "${desc}"
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+local_route_tunsrc()
+{
+ ##############################################################################
+ # Make sure the Tunnel Source is only (and possibly) used with encap mode. #
+ ##############################################################################
+ local desc
+ local mode
+ local mode_tunsrc
+
+ [ -z $1 ] && return
+
+ if [ "$1" == "encap" ]
+ then
+ desc="Optional Tunnel Source"
+ mode="$1 tundst 2001:db8:2::2"
+ mode_tunsrc="$1 tunsrc 2001:db8:1::50 tundst 2001:db8:2::2"
+ else
+ desc="Unneeded Tunnel Source"
+ mode="$1"
+ mode_tunsrc="$1 tunsrc 2001:db8:1::50"
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+ local ret1=$?
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode_tunsrc trace prealloc type 0x800000 ns 0 size 4 \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+ local ret2=$?
+
+ if [ "$1" == "encap" ]
+ then
+ [[ $ret1 != 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \
+ || log_test_passed "${desc}"
+ else
+ [[ $ret1 != 0 || $ret2 == 0 ]] && log_test_failed "${desc}" \
+ || log_test_passed "${desc}"
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+local_route_tundst()
+{
+ ##############################################################################
+ # Make sure the Tunnel Destination is only (and always) used with encap mode.#
+ ##############################################################################
+ local desc
+
+ [ -z $1 ] && return
+
+ [ "$1" == "encap" ] && desc="Mandatory Tunnel Destination" \
+ || desc="Unneeded Tunnel Destination"
+
+ local mode="$1"
+ local mode_tundst="$1 tundst 2001:db8:2::2"
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+ local ret1=$?
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode_tundst trace prealloc type 0x800000 ns 0 size 4 \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+ local ret2=$?
+
+ if [ "$1" == "encap" ]
+ then
+ [[ $ret1 == 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \
+ || log_test_passed "${desc}"
+ else
+ [[ $ret1 != 0 || $ret2 == 0 ]] && log_test_failed "${desc}" \
+ || log_test_passed "${desc}"
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+local_route_trace_type()
+{
+ ##############################################################################
+ # Make sure the Trace Type is always provided, whatever the mode. #
+ ##############################################################################
+ local desc="Mandatory Trace Type"
+ local mode
+
+ [ -z $1 ] && return
+
+ [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1"
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc ns 0 size 4 \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+ local ret1=$?
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+ local ret2=$?
+
+ [[ $ret1 == 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \
+ || log_test_passed "${desc}"
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+local_route_trace_size()
+{
+ ##############################################################################
+ # Make sure the Trace Size is always provided, whatever the mode. #
+ ##############################################################################
+ local desc="Mandatory Trace Size"
+ local mode
+
+ [ -z $1 ] && return
+
+ [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1"
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+ local ret1=$?
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+ local ret2=$?
+
+ [[ $ret1 == 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \
+ || log_test_passed "${desc}"
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+local_route_trace_type_bits()
+{
+ ##############################################################################
+ # Make sure only allowed bits (0-11 and 22) are accepted. #
+ ##############################################################################
+ local desc="Trace Type bits"
+ local mode
+
+ [ -z $1 ] && return
+
+ [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1"
+
+ local i
+ for i in {0..23}
+ do
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type ${bit2type[$i]} ns 0 size 4 \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [[ ($? == 0 && (($i -ge 12 && $i -le 21) || $i == 23)) ||
+ ($? != 0 && (($i -ge 0 && $i -le 11) || $i == 22)) ]]
+ then
+ local err=1
+ break
+ fi
+ done
+
+ [ -z $err ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+local_route_trace_size_values()
+{
+ ##############################################################################
+ # Make sure only allowed sizes (multiples of four in [4,244]) are accepted. #
+ ##############################################################################
+ local desc="Trace Size values"
+ local mode
+
+ [ -z $1 ] && return
+
+ [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1"
+
+ # we also try the next multiple of four after the MAX to check it's refused
+ local i
+ for i in {0..248}
+ do
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size $i \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [[ ($? == 0 && ($i == 0 || $i == 248 || $(( $i % 4 )) != 0)) ||
+ ($? != 0 && $i != 0 && $i != 248 && $(( $i % 4 )) == 0) ]]
+ then
+ local err=1
+ break
+ fi
+ done
+
+ [ -z $err ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+
+################################################################################
+# #
+# OUTPUT tests #
+# #
+################################################################################
+
+output_undef_ns()
+{
+ ##############################################################################
+ # Make sure an IOAM encapsulating node does NOT fill the trace when the #
+ # corresponding IOAM Namespace-ID is not configured locally. #
+ ##############################################################################
+ local desc="Unknown IOAM Namespace-ID"
+ local ns=0
+ local tr_type=0x800000
+ local tr_size=4
+ local mode="$1"
+ local saddr="2001:db8:1::2"
+
+ if [ "$1" == "encap" ]
+ then
+ if [ $encap_tests != 0 ]
+ then
+ log_test_skipped "${desc}"
+ return
+ fi
+
+ if [ "$2" == "tunsrc" ]
+ then
+ saddr="2001:db8:1::50"
+ mode+=" tunsrc 2001:db8:1::50"
+ fi
+
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [ $? == 0 ]
+ then
+ run_test ${FUNCNAME[0]} "${desc}" $saddr $tr_type $tr_size $ns $1
+ else
+ log_test_failed "${desc}"
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+}
+
+output_no_room()
+{
+ ##############################################################################
+ # Make sure an IOAM encapsulating node does NOT fill the trace AND sets the #
+ # Overflow flag when there is not enough room for its data. #
+ ##############################################################################
+ local desc="Missing room for data"
+ local ns=123
+ local tr_type=0xc00000
+ local tr_size=4
+ local mode="$1"
+ local saddr="2001:db8:1::2"
+
+ if [ "$1" == "encap" ]
+ then
+ if [ $encap_tests != 0 ]
+ then
+ log_test_skipped "${desc}"
+ return
+ fi
+
+ if [ "$2" == "tunsrc" ]
+ then
+ saddr="2001:db8:1::50"
+ mode+=" tunsrc 2001:db8:1::50"
+ fi
+
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [ $? == 0 ]
+ then
+ run_test ${FUNCNAME[0]} "${desc}" $saddr $tr_type $tr_size $ns $1
+ else
+ log_test_failed "${desc}"
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+}
+
+output_no_room_oss()
+{
+ ##############################################################################
+ # Make sure an IOAM encapsulating node does NOT fill the trace AND sets the #
+ # Overflow flag when there is not enough room for the Opaque State Snapshot. #
+ ##############################################################################
+ local desc="Missing room for Opaque State Snapshot"
+ local ns=123
+ local tr_type=0x000002
+ local tr_size=4
+ local mode="$1"
+ local saddr="2001:db8:1::2"
+
+ if [ "$1" == "encap" ]
+ then
+ if [ $encap_tests != 0 ]
+ then
+ log_test_skipped "${desc}"
+ return
+ fi
+
+ if [ "$2" == "tunsrc" ]
+ then
+ saddr="2001:db8:1::50"
+ mode+=" tunsrc 2001:db8:1::50"
+ fi
+
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [ $? == 0 ]
+ then
+ run_test ${FUNCNAME[0]} "${desc}" $saddr $tr_type $tr_size $ns $1
+ else
+ log_test_failed "${desc}"
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+}
+
+output_bits()
+{
+ ##############################################################################
+ # Make sure an IOAM encapsulating node implements all supported bits by #
+ # checking it correctly fills the trace with its data. #
+ ##############################################################################
+ local desc="Trace Type with supported bit <n> only"
+ local ns=123
+ local mode="$1"
+ local saddr="2001:db8:1::2"
+
+ if [ "$1" == "encap" ]
+ then
+ if [ "$2" == "tunsrc" ]
+ then
+ saddr="2001:db8:1::50"
+ mode+=" tunsrc 2001:db8:1::50"
+ fi
+
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ local tmp=${bit2size[22]}
+ bit2size[22]=$(( $tmp + ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) ))
+
+ local i
+ for i in {0..11} {22..22}
+ do
+ local descr="${desc/<n>/$i}"
+
+ if [[ "$1" == "encap" && $encap_tests != 0 ]]
+ then
+ log_test_skipped "${descr}"
+ continue
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc \
+ type ${bit2type[$i]} ns $ns size ${bit2size[$i]} \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [ $? == 0 ]
+ then
+ run_test "output_bit$i" "${descr}" $saddr \
+ ${bit2type[$i]} ${bit2size[$i]} $ns $1
+ else
+ log_test_failed "${descr}"
+ fi
+ done
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+
+ bit2size[22]=$tmp
+}
+
+output_sizes()
+{
+ ##############################################################################
+ # Make sure an IOAM encapsulating node allocates supported sizes correctly. #
+ ##############################################################################
+ local desc="Trace Size of <n> bytes"
+ local ns=0
+ local tr_type=0x800000
+ local mode="$1"
+ local saddr="2001:db8:1::2"
+
+ if [ "$1" == "encap" ]
+ then
+ if [ "$2" == "tunsrc" ]
+ then
+ saddr="2001:db8:1::50"
+ mode+=" tunsrc 2001:db8:1::50"
+ fi
+
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ local i
+ for i in $(seq 4 4 244)
+ do
+ local descr="${desc/<n>/$i}"
+
+ if [[ "$1" == "encap" && $encap_tests != 0 ]]
+ then
+ log_test_skipped "${descr}"
+ continue
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $i \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [ $? == 0 ]
+ then
+ run_test "output_size$i" "${descr}" $saddr $tr_type $i $ns $1
+ else
+ log_test_failed "${descr}"
+ fi
+ done
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+}
+
+output_full_supp_trace()
+{
+ ##############################################################################
+ # Make sure an IOAM encapsulating node correctly fills a trace when all #
+ # supported bits are set. #
+ ##############################################################################
+ local desc="Full supported trace"
+ local ns=123
+ local tr_type=0xfff002
+ local tr_size
+ local mode="$1"
+ local saddr="2001:db8:1::2"
+
+ if [ "$1" == "encap" ]
+ then
+ if [ $encap_tests != 0 ]
+ then
+ log_test_skipped "${desc}"
+ return
+ fi
+
+ if [ "$2" == "tunsrc" ]
+ then
+ saddr="2001:db8:1::50"
+ mode+=" tunsrc 2001:db8:1::50"
+ fi
+
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ local i
+ tr_size=$(( ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) ))
+ for i in {0..11} {22..22}
+ do
+ tr_size=$((tr_size + bit2size[$i]))
+ done
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [ $? == 0 ]
+ then
+ run_test ${FUNCNAME[0]} "${desc}" $saddr $tr_type $tr_size $ns $1
+ else
+ log_test_failed "${desc}"
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+}
+
+
+################################################################################
+# #
+# INPUT tests #
+# #
+################################################################################
+
+input_undef_ns()
+{
+ ##############################################################################
+ # Make sure an IOAM node does NOT fill the trace when the corresponding IOAM #
+ # Namespace-ID is not configured locally. #
+ ##############################################################################
+ local desc="Unknown IOAM Namespace-ID"
+ local ns=0
+ local tr_type=0x800000
+ local tr_size=4
+ local mode="$1"
+
+ if [ "$1" == "encap" ]
+ then
+ if [ $encap_tests != 0 ]
+ then
+ log_test_skipped "${desc}"
+ return
+ fi
+
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [ $? == 0 ]
+ then
+ run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1
+ else
+ log_test_failed "${desc}"
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+}
+
+input_no_room()
+{
+ ##############################################################################
+ # Make sure an IOAM node does NOT fill the trace AND sets the Overflow flag #
+ # when there is not enough room for its data. #
+ ##############################################################################
+ local desc="Missing room for data"
+ local ns=123
+ local tr_type=0xc00000
+ local tr_size=4
+ local mode="$1"
+
+ if [ "$1" == "encap" ]
+ then
+ if [ $encap_tests != 0 ]
+ then
+ log_test_skipped "${desc}"
+ return
+ fi
+
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [ $? == 0 ]
+ then
+ run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1
+ else
+ log_test_failed "${desc}"
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+}
+
+input_no_room_oss()
+{
+ ##############################################################################
+ # Make sure an IOAM node does NOT fill the trace AND sets the Overflow flag #
+ # when there is not enough room for the Opaque State Snapshot. #
+ ##############################################################################
+ local desc="Missing room for Opaque State Snapshot"
+ local ns=123
+ local tr_type=0x000002
+ local tr_size=4
+ local mode="$1"
+
+ if [ "$1" == "encap" ]
+ then
+ if [ $encap_tests != 0 ]
+ then
+ log_test_skipped "${desc}"
+ return
+ fi
+
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [ $? == 0 ]
+ then
+ run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1
+ else
+ log_test_failed "${desc}"
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+}
+
+input_disabled()
+{
+ ##############################################################################
+ # Make sure an IOAM node does NOT fill the trace when IOAM is not enabled on #
+ # the corresponding (ingress) interface. #
+ ##############################################################################
+ local desc="IOAM disabled on ingress interface"
+ local ns=123
+ local tr_type=0x800000
+ local tr_size=4
+ local mode="$1"
+
+ if [ "$1" == "encap" ]
+ then
+ if [ $encap_tests != 0 ]
+ then
+ log_test_skipped "${desc}"
+ return
+ fi
+
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ # Exception: disable IOAM on ingress interface
+ ip netns exec $ioam_node_beta \
+ sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=0 &>/dev/null
+ local ret=$?
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+ ret=$((ret + $?))
+
+ if [ $ret == 0 ]
+ then
+ run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1
+ else
+ log_test_failed "${desc}"
+ fi
+
+ # Clean Exception
+ ip netns exec $ioam_node_beta \
+ sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 &>/dev/null
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+}
+
+input_oflag()
+{
+ ##############################################################################
+ # Make sure an IOAM node does NOT fill the trace when the Overflow flag is #
+ # set. #
+ ##############################################################################
+ local desc="Overflow flag is set"
+ local ns=123
+ local tr_type=0xc00000
+ local tr_size=4
+ local mode="$1"
+
+ if [ "$1" == "encap" ]
+ then
+ if [ $encap_tests != 0 ]
+ then
+ log_test_skipped "${desc}"
+ return
+ fi
+
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ # 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 $ioam_node_alpha ioam namespace add 123 &>/dev/null
+ local ret=$?
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+ ret=$((ret + $?))
+
+ if [ $ret == 0 ]
+ then
+ run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1
+ else
+ log_test_failed "${desc}"
+ fi
+
+ # Clean Exception
+ ip -netns $ioam_node_alpha ioam namespace del 123 &>/dev/null
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+}
+
+input_bits()
+{
+ ##############################################################################
+ # Make sure an IOAM node implements all supported bits by checking it #
+ # correctly fills the trace with its data. #
+ ##############################################################################
+ local desc="Trace Type with supported bit <n> only"
+ local ns=123
+ local mode="$1"
+
+ if [ "$1" == "encap" ]
+ then
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ local tmp=${bit2size[22]}
+ bit2size[22]=$(( $tmp + ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) ))
+
+ local i
+ for i in {0..11} {22..22}
+ do
+ local descr="${desc/<n>/$i}"
+
+ if [[ "$1" == "encap" && $encap_tests != 0 ]]
+ then
+ log_test_skipped "${descr}"
+ continue
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc \
+ type ${bit2type[$i]} ns $ns size ${bit2size[$i]} \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [ $? == 0 ]
+ then
+ run_test "input_bit$i" "${descr}" 2001:db8:1::2 \
+ ${bit2type[$i]} ${bit2size[$i]} $ns $1
+ else
+ log_test_failed "${descr}"
+ fi
+ done
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+
+ bit2size[22]=$tmp
+}
+
+input_sizes()
+{
+ ##############################################################################
+ # Make sure an IOAM node handles all supported sizes correctly. #
+ ##############################################################################
+ local desc="Trace Size of <n> bytes"
+ local ns=123
+ local tr_type=0x800000
+ local mode="$1"
+
+ if [ "$1" == "encap" ]
+ then
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ local i
+ for i in $(seq 4 4 244)
+ do
+ local descr="${desc/<n>/$i}"
+
+ if [[ "$1" == "encap" && $encap_tests != 0 ]]
+ then
+ log_test_skipped "${descr}"
+ continue
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $i \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [ $? == 0 ]
+ then
+ run_test "input_size$i" "${descr}" 2001:db8:1::2 $tr_type $i $ns $1
+ else
+ log_test_failed "${descr}"
+ fi
+ done
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+}
+
+input_full_supp_trace()
+{
+ ##############################################################################
+ # Make sure an IOAM node correctly fills a trace when all supported bits are #
+ # set. #
+ ##############################################################################
+ local desc="Full supported trace"
+ local ns=123
+ local tr_type=0xfff002
+ local tr_size
+ local mode="$1"
+
+ if [ "$1" == "encap" ]
+ then
+ if [ $encap_tests != 0 ]
+ then
+ log_test_skipped "${desc}"
+ return
+ fi
+
+ mode+=" tundst 2001:db8:2::2"
+ ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+ fi
+
+ local i
+ tr_size=$(( ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) ))
+ for i in {0..11} {22..22}
+ do
+ tr_size=$((tr_size + bit2size[$i]))
+ done
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 \
+ encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+ via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ if [ $? == 0 ]
+ then
+ run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1
+ else
+ log_test_failed "${desc}"
+ fi
+
+ ip -netns $ioam_node_alpha \
+ route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+ [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+ link set ip6tnl0 down &>/dev/null
+}
+
+
+################################################################################
+# #
+# MAIN #
+# #
+################################################################################
+
+npassed=0
+nskipped=0
+nfailed=0
+
+if [ "$(id -u)" -ne 0 ]
+then
+ echo "SKIP: Need root privileges."
+ exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v ip)" ]
+then
+ echo "SKIP: Could not run test without ip tool."
+ exit $ksft_skip
+fi
+
+check_kernel_compatibility
+setup
+run
+cleanup
+
+if [ $nfailed != 0 ]
+then
+ exit $ksft_fail
+fi
+
+exit $ksft_pass
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.