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Message-Id: <20241002162731.19847-3-justin.iurman@uliege.be>
Date: Wed, 2 Oct 2024 18:27:31 +0200
From: Justin Iurman <justin.iurman@...ege.be>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com,
shuah@...nel.org,
linux-kernel@...r.kernel.org,
linux-kselftest@...r.kernel.org,
justin.iurman@...ege.be
Subject: [PATCH net-next v2 2/2] selftests: net: add new ioam tests
This patch re-adds the (updated) ioam selftests with support for the
tunsrc feature.
Signed-off-by: Justin Iurman <justin.iurman@...ege.be>
---
tools/testing/selftests/net/Makefile | 2 +
tools/testing/selftests/net/config | 1 +
tools/testing/selftests/net/ioam6.sh | 1683 ++++++++++++++++++++
tools/testing/selftests/net/ioam6_parser.c | 1101 +++++++++++++
4 files changed, 2787 insertions(+)
create mode 100755 tools/testing/selftests/net/ioam6.sh
create mode 100644 tools/testing/selftests/net/ioam6_parser.c
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index ef40d099aa1c..649f1fe0dc46 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -28,6 +28,7 @@ TEST_PROGS += unicast_extensions.sh
TEST_PROGS += udpgro_fwd.sh
TEST_PROGS += udpgro_frglist.sh
TEST_PROGS += veth.sh
+TEST_PROGS += ioam6.sh
TEST_PROGS += gro.sh
TEST_PROGS += gre_gso.sh
TEST_PROGS += cmsg_so_mark.sh
@@ -66,6 +67,7 @@ TEST_GEN_FILES += fin_ack_lat
TEST_GEN_FILES += reuseaddr_ports_exhausted
TEST_GEN_FILES += hwtstamp_config rxtimestamp timestamping txtimestamp
TEST_GEN_FILES += ipsec
+TEST_GEN_FILES += ioam6_parser
TEST_GEN_FILES += gro
TEST_GEN_PROGS = reuseport_bpf reuseport_bpf_cpu reuseport_bpf_numa
TEST_GEN_PROGS += reuseport_dualstack reuseaddr_conflict tls tun tap epoll_busy_poll
diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config
index 3f0b02835e78..5b9baf708950 100644
--- a/tools/testing/selftests/net/config
+++ b/tools/testing/selftests/net/config
@@ -95,6 +95,7 @@ CONFIG_NET_CLS_FLOWER=m
CONFIG_NET_ACT_TUNNEL_KEY=m
CONFIG_NET_ACT_MIRRED=m
CONFIG_BAREUDP=m
+CONFIG_IPV6_IOAM6_LWTUNNEL=y
CONFIG_CRYPTO_SM4_GENERIC=y
CONFIG_AMT=m
CONFIG_TUN=y
diff --git a/tools/testing/selftests/net/ioam6.sh b/tools/testing/selftests/net/ioam6.sh
new file mode 100755
index 000000000000..845c26dd01a9
--- /dev/null
+++ b/tools/testing/selftests/net/ioam6.sh
@@ -0,0 +1,1683 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Author: Justin Iurman <justin.iurman@...ege.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
diff --git a/tools/testing/selftests/net/ioam6_parser.c b/tools/testing/selftests/net/ioam6_parser.c
new file mode 100644
index 000000000000..de4b5c9e8a74
--- /dev/null
+++ b/tools/testing/selftests/net/ioam6_parser.c
@@ -0,0 +1,1101 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Author: Justin Iurman (justin.iurman@...ege.be)
+ *
+ * IOAM tester for IPv6, see ioam6.sh for details on each test case.
+ */
+#include <arpa/inet.h>
+#include <errno.h>
+#include <limits.h>
+#include <linux/const.h>
+#include <linux/if_ether.h>
+#include <linux/ioam6.h>
+#include <linux/ipv6.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+struct ioam_config {
+ __u32 id;
+ __u64 wide;
+ __u16 ingr_id;
+ __u16 egr_id;
+ __u32 ingr_wide;
+ __u32 egr_wide;
+ __u32 ns_data;
+ __u64 ns_wide;
+ __u32 sc_id;
+ __u8 hlim;
+ char *sc_data;
+};
+
+/*
+ * Be careful if you modify structs below - everything MUST be kept synchronized
+ * with configurations inside ioam6.sh and always reflect the same.
+ */
+
+static struct ioam_config node1 = {
+ .id = 1,
+ .wide = 11111111,
+ .ingr_id = 0xffff, /* default value */
+ .egr_id = 101,
+ .ingr_wide = 0xffffffff, /* default value */
+ .egr_wide = 101101,
+ .ns_data = 0xdeadbeef,
+ .ns_wide = 0xcafec0caf00dc0de,
+ .sc_id = 777,
+ .sc_data = "something that will be 4n-aligned",
+ .hlim = 64,
+};
+
+static struct ioam_config node2 = {
+ .id = 2,
+ .wide = 22222222,
+ .ingr_id = 201,
+ .egr_id = 202,
+ .ingr_wide = 201201,
+ .egr_wide = 202202,
+ .ns_data = 0xffffffff, /* default value */
+ .ns_wide = 0xffffffffffffffff, /* default value */
+ .sc_id = 0xffffff, /* default value */
+ .sc_data = NULL,
+ .hlim = 63,
+};
+
+enum {
+ /**********
+ * OUTPUT *
+ **********/
+ __TEST_OUT_MIN,
+
+ TEST_OUT_UNDEF_NS,
+ TEST_OUT_NO_ROOM,
+ TEST_OUT_NO_ROOM_OSS,
+ TEST_OUT_BIT0,
+ TEST_OUT_BIT1,
+ TEST_OUT_BIT2,
+ TEST_OUT_BIT3,
+ TEST_OUT_BIT4,
+ TEST_OUT_BIT5,
+ TEST_OUT_BIT6,
+ TEST_OUT_BIT7,
+ TEST_OUT_BIT8,
+ TEST_OUT_BIT9,
+ TEST_OUT_BIT10,
+ TEST_OUT_BIT11,
+ TEST_OUT_BIT22,
+ TEST_OUT_SIZE4,
+ TEST_OUT_SIZE8,
+ TEST_OUT_SIZE12,
+ TEST_OUT_SIZE16,
+ TEST_OUT_SIZE20,
+ TEST_OUT_SIZE24,
+ TEST_OUT_SIZE28,
+ TEST_OUT_SIZE32,
+ TEST_OUT_SIZE36,
+ TEST_OUT_SIZE40,
+ TEST_OUT_SIZE44,
+ TEST_OUT_SIZE48,
+ TEST_OUT_SIZE52,
+ TEST_OUT_SIZE56,
+ TEST_OUT_SIZE60,
+ TEST_OUT_SIZE64,
+ TEST_OUT_SIZE68,
+ TEST_OUT_SIZE72,
+ TEST_OUT_SIZE76,
+ TEST_OUT_SIZE80,
+ TEST_OUT_SIZE84,
+ TEST_OUT_SIZE88,
+ TEST_OUT_SIZE92,
+ TEST_OUT_SIZE96,
+ TEST_OUT_SIZE100,
+ TEST_OUT_SIZE104,
+ TEST_OUT_SIZE108,
+ TEST_OUT_SIZE112,
+ TEST_OUT_SIZE116,
+ TEST_OUT_SIZE120,
+ TEST_OUT_SIZE124,
+ TEST_OUT_SIZE128,
+ TEST_OUT_SIZE132,
+ TEST_OUT_SIZE136,
+ TEST_OUT_SIZE140,
+ TEST_OUT_SIZE144,
+ TEST_OUT_SIZE148,
+ TEST_OUT_SIZE152,
+ TEST_OUT_SIZE156,
+ TEST_OUT_SIZE160,
+ TEST_OUT_SIZE164,
+ TEST_OUT_SIZE168,
+ TEST_OUT_SIZE172,
+ TEST_OUT_SIZE176,
+ TEST_OUT_SIZE180,
+ TEST_OUT_SIZE184,
+ TEST_OUT_SIZE188,
+ TEST_OUT_SIZE192,
+ TEST_OUT_SIZE196,
+ TEST_OUT_SIZE200,
+ TEST_OUT_SIZE204,
+ TEST_OUT_SIZE208,
+ TEST_OUT_SIZE212,
+ TEST_OUT_SIZE216,
+ TEST_OUT_SIZE220,
+ TEST_OUT_SIZE224,
+ TEST_OUT_SIZE228,
+ TEST_OUT_SIZE232,
+ TEST_OUT_SIZE236,
+ TEST_OUT_SIZE240,
+ TEST_OUT_SIZE244,
+ TEST_OUT_FULL_SUPP_TRACE,
+
+ __TEST_OUT_MAX,
+
+ /*********
+ * INPUT *
+ *********/
+ __TEST_IN_MIN,
+
+ TEST_IN_UNDEF_NS,
+ TEST_IN_NO_ROOM,
+ TEST_IN_NO_ROOM_OSS,
+ TEST_IN_DISABLED,
+ TEST_IN_OFLAG,
+ TEST_IN_BIT0,
+ TEST_IN_BIT1,
+ TEST_IN_BIT2,
+ TEST_IN_BIT3,
+ TEST_IN_BIT4,
+ TEST_IN_BIT5,
+ TEST_IN_BIT6,
+ TEST_IN_BIT7,
+ TEST_IN_BIT8,
+ TEST_IN_BIT9,
+ TEST_IN_BIT10,
+ TEST_IN_BIT11,
+ TEST_IN_BIT22,
+ TEST_IN_SIZE4,
+ TEST_IN_SIZE8,
+ TEST_IN_SIZE12,
+ TEST_IN_SIZE16,
+ TEST_IN_SIZE20,
+ TEST_IN_SIZE24,
+ TEST_IN_SIZE28,
+ TEST_IN_SIZE32,
+ TEST_IN_SIZE36,
+ TEST_IN_SIZE40,
+ TEST_IN_SIZE44,
+ TEST_IN_SIZE48,
+ TEST_IN_SIZE52,
+ TEST_IN_SIZE56,
+ TEST_IN_SIZE60,
+ TEST_IN_SIZE64,
+ TEST_IN_SIZE68,
+ TEST_IN_SIZE72,
+ TEST_IN_SIZE76,
+ TEST_IN_SIZE80,
+ TEST_IN_SIZE84,
+ TEST_IN_SIZE88,
+ TEST_IN_SIZE92,
+ TEST_IN_SIZE96,
+ TEST_IN_SIZE100,
+ TEST_IN_SIZE104,
+ TEST_IN_SIZE108,
+ TEST_IN_SIZE112,
+ TEST_IN_SIZE116,
+ TEST_IN_SIZE120,
+ TEST_IN_SIZE124,
+ TEST_IN_SIZE128,
+ TEST_IN_SIZE132,
+ TEST_IN_SIZE136,
+ TEST_IN_SIZE140,
+ TEST_IN_SIZE144,
+ TEST_IN_SIZE148,
+ TEST_IN_SIZE152,
+ TEST_IN_SIZE156,
+ TEST_IN_SIZE160,
+ TEST_IN_SIZE164,
+ TEST_IN_SIZE168,
+ TEST_IN_SIZE172,
+ TEST_IN_SIZE176,
+ TEST_IN_SIZE180,
+ TEST_IN_SIZE184,
+ TEST_IN_SIZE188,
+ TEST_IN_SIZE192,
+ TEST_IN_SIZE196,
+ TEST_IN_SIZE200,
+ TEST_IN_SIZE204,
+ TEST_IN_SIZE208,
+ TEST_IN_SIZE212,
+ TEST_IN_SIZE216,
+ TEST_IN_SIZE220,
+ TEST_IN_SIZE224,
+ TEST_IN_SIZE228,
+ TEST_IN_SIZE232,
+ TEST_IN_SIZE236,
+ TEST_IN_SIZE240,
+ TEST_IN_SIZE244,
+ TEST_IN_FULL_SUPP_TRACE,
+
+ __TEST_IN_MAX,
+
+ __TEST_MAX,
+};
+
+static int check_header(int tid, struct ioam6_trace_hdr *trace,
+ __u32 trace_type, __u8 trace_size, __u16 ioam_ns)
+{
+ if (__be16_to_cpu(trace->namespace_id) != ioam_ns ||
+ __be32_to_cpu(trace->type_be32) != (trace_type << 8))
+ return 1;
+
+ switch (tid) {
+ case TEST_OUT_UNDEF_NS:
+ case TEST_IN_UNDEF_NS:
+ case TEST_IN_DISABLED:
+ return trace->overflow == 1 ||
+ trace->nodelen != 1 ||
+ trace->remlen != 1;
+
+ case TEST_OUT_NO_ROOM:
+ case TEST_IN_NO_ROOM:
+ case TEST_IN_OFLAG:
+ return trace->overflow == 0 ||
+ trace->nodelen != 2 ||
+ trace->remlen != 1;
+
+ case TEST_OUT_NO_ROOM_OSS:
+ return trace->overflow == 0 ||
+ trace->nodelen != 0 ||
+ trace->remlen != 1;
+
+ case TEST_IN_NO_ROOM_OSS:
+ case TEST_OUT_BIT22:
+ case TEST_IN_BIT22:
+ return trace->overflow == 1 ||
+ trace->nodelen != 0 ||
+ trace->remlen != 0;
+
+ case TEST_OUT_BIT0:
+ case TEST_IN_BIT0:
+ case TEST_OUT_BIT1:
+ case TEST_IN_BIT1:
+ case TEST_OUT_BIT2:
+ case TEST_IN_BIT2:
+ case TEST_OUT_BIT3:
+ case TEST_IN_BIT3:
+ case TEST_OUT_BIT4:
+ case TEST_IN_BIT4:
+ case TEST_OUT_BIT5:
+ case TEST_IN_BIT5:
+ case TEST_OUT_BIT6:
+ case TEST_IN_BIT6:
+ case TEST_OUT_BIT7:
+ case TEST_IN_BIT7:
+ case TEST_OUT_BIT11:
+ case TEST_IN_BIT11:
+ return trace->overflow == 1 ||
+ trace->nodelen != 1 ||
+ trace->remlen != 0;
+
+ case TEST_OUT_BIT8:
+ case TEST_IN_BIT8:
+ case TEST_OUT_BIT9:
+ case TEST_IN_BIT9:
+ case TEST_OUT_BIT10:
+ case TEST_IN_BIT10:
+ return trace->overflow == 1 ||
+ trace->nodelen != 2 ||
+ trace->remlen != 0;
+
+ case TEST_OUT_SIZE4:
+ case TEST_OUT_SIZE8:
+ case TEST_OUT_SIZE12:
+ case TEST_OUT_SIZE16:
+ case TEST_OUT_SIZE20:
+ case TEST_OUT_SIZE24:
+ case TEST_OUT_SIZE28:
+ case TEST_OUT_SIZE32:
+ case TEST_OUT_SIZE36:
+ case TEST_OUT_SIZE40:
+ case TEST_OUT_SIZE44:
+ case TEST_OUT_SIZE48:
+ case TEST_OUT_SIZE52:
+ case TEST_OUT_SIZE56:
+ case TEST_OUT_SIZE60:
+ case TEST_OUT_SIZE64:
+ case TEST_OUT_SIZE68:
+ case TEST_OUT_SIZE72:
+ case TEST_OUT_SIZE76:
+ case TEST_OUT_SIZE80:
+ case TEST_OUT_SIZE84:
+ case TEST_OUT_SIZE88:
+ case TEST_OUT_SIZE92:
+ case TEST_OUT_SIZE96:
+ case TEST_OUT_SIZE100:
+ case TEST_OUT_SIZE104:
+ case TEST_OUT_SIZE108:
+ case TEST_OUT_SIZE112:
+ case TEST_OUT_SIZE116:
+ case TEST_OUT_SIZE120:
+ case TEST_OUT_SIZE124:
+ case TEST_OUT_SIZE128:
+ case TEST_OUT_SIZE132:
+ case TEST_OUT_SIZE136:
+ case TEST_OUT_SIZE140:
+ case TEST_OUT_SIZE144:
+ case TEST_OUT_SIZE148:
+ case TEST_OUT_SIZE152:
+ case TEST_OUT_SIZE156:
+ case TEST_OUT_SIZE160:
+ case TEST_OUT_SIZE164:
+ case TEST_OUT_SIZE168:
+ case TEST_OUT_SIZE172:
+ case TEST_OUT_SIZE176:
+ case TEST_OUT_SIZE180:
+ case TEST_OUT_SIZE184:
+ case TEST_OUT_SIZE188:
+ case TEST_OUT_SIZE192:
+ case TEST_OUT_SIZE196:
+ case TEST_OUT_SIZE200:
+ case TEST_OUT_SIZE204:
+ case TEST_OUT_SIZE208:
+ case TEST_OUT_SIZE212:
+ case TEST_OUT_SIZE216:
+ case TEST_OUT_SIZE220:
+ case TEST_OUT_SIZE224:
+ case TEST_OUT_SIZE228:
+ case TEST_OUT_SIZE232:
+ case TEST_OUT_SIZE236:
+ case TEST_OUT_SIZE240:
+ case TEST_OUT_SIZE244:
+ return trace->overflow == 1 ||
+ trace->nodelen != 1 ||
+ trace->remlen != trace_size / 4;
+
+ case TEST_IN_SIZE4:
+ case TEST_IN_SIZE8:
+ case TEST_IN_SIZE12:
+ case TEST_IN_SIZE16:
+ case TEST_IN_SIZE20:
+ case TEST_IN_SIZE24:
+ case TEST_IN_SIZE28:
+ case TEST_IN_SIZE32:
+ case TEST_IN_SIZE36:
+ case TEST_IN_SIZE40:
+ case TEST_IN_SIZE44:
+ case TEST_IN_SIZE48:
+ case TEST_IN_SIZE52:
+ case TEST_IN_SIZE56:
+ case TEST_IN_SIZE60:
+ case TEST_IN_SIZE64:
+ case TEST_IN_SIZE68:
+ case TEST_IN_SIZE72:
+ case TEST_IN_SIZE76:
+ case TEST_IN_SIZE80:
+ case TEST_IN_SIZE84:
+ case TEST_IN_SIZE88:
+ case TEST_IN_SIZE92:
+ case TEST_IN_SIZE96:
+ case TEST_IN_SIZE100:
+ case TEST_IN_SIZE104:
+ case TEST_IN_SIZE108:
+ case TEST_IN_SIZE112:
+ case TEST_IN_SIZE116:
+ case TEST_IN_SIZE120:
+ case TEST_IN_SIZE124:
+ case TEST_IN_SIZE128:
+ case TEST_IN_SIZE132:
+ case TEST_IN_SIZE136:
+ case TEST_IN_SIZE140:
+ case TEST_IN_SIZE144:
+ case TEST_IN_SIZE148:
+ case TEST_IN_SIZE152:
+ case TEST_IN_SIZE156:
+ case TEST_IN_SIZE160:
+ case TEST_IN_SIZE164:
+ case TEST_IN_SIZE168:
+ case TEST_IN_SIZE172:
+ case TEST_IN_SIZE176:
+ case TEST_IN_SIZE180:
+ case TEST_IN_SIZE184:
+ case TEST_IN_SIZE188:
+ case TEST_IN_SIZE192:
+ case TEST_IN_SIZE196:
+ case TEST_IN_SIZE200:
+ case TEST_IN_SIZE204:
+ case TEST_IN_SIZE208:
+ case TEST_IN_SIZE212:
+ case TEST_IN_SIZE216:
+ case TEST_IN_SIZE220:
+ case TEST_IN_SIZE224:
+ case TEST_IN_SIZE228:
+ case TEST_IN_SIZE232:
+ case TEST_IN_SIZE236:
+ case TEST_IN_SIZE240:
+ case TEST_IN_SIZE244:
+ return trace->overflow == 1 ||
+ trace->nodelen != 1 ||
+ trace->remlen != (trace_size / 4) - trace->nodelen;
+
+ case TEST_OUT_FULL_SUPP_TRACE:
+ case TEST_IN_FULL_SUPP_TRACE:
+ return trace->overflow == 1 ||
+ trace->nodelen != 15 ||
+ trace->remlen != 0;
+
+ default:
+ break;
+ }
+
+ return 1;
+}
+
+static int check_data(struct ioam6_trace_hdr *trace, __u8 trace_size,
+ const struct ioam_config cnf, bool is_output)
+{
+ unsigned int len, i;
+ __u8 aligned;
+ __u64 raw64;
+ __u32 raw32;
+ __u8 *p;
+
+ if (trace->type.bit12 | trace->type.bit13 | trace->type.bit14 |
+ trace->type.bit15 | trace->type.bit16 | trace->type.bit17 |
+ trace->type.bit18 | trace->type.bit19 | trace->type.bit20 |
+ trace->type.bit21 | trace->type.bit23)
+ return 1;
+
+ for (i = 0; i < trace->remlen * 4; i++) {
+ if (trace->data[i] != 0)
+ return 1;
+ }
+
+ if (trace->remlen * 4 == trace_size)
+ return 0;
+
+ p = trace->data + trace->remlen * 4;
+
+ if (trace->type.bit0) {
+ raw32 = __be32_to_cpu(*((__u32 *)p));
+ if (cnf.hlim != (raw32 >> 24) || cnf.id != (raw32 & 0xffffff))
+ return 1;
+ p += sizeof(__u32);
+ }
+
+ if (trace->type.bit1) {
+ raw32 = __be32_to_cpu(*((__u32 *)p));
+ if (cnf.ingr_id != (raw32 >> 16) ||
+ cnf.egr_id != (raw32 & 0xffff))
+ return 1;
+ p += sizeof(__u32);
+ }
+
+ if (trace->type.bit2) {
+ raw32 = __be32_to_cpu(*((__u32 *)p));
+ if ((is_output && raw32 != 0xffffffff) ||
+ (!is_output && (raw32 == 0 || raw32 == 0xffffffff)))
+ return 1;
+ p += sizeof(__u32);
+ }
+
+ if (trace->type.bit3) {
+ raw32 = __be32_to_cpu(*((__u32 *)p));
+ if ((is_output && raw32 != 0xffffffff) ||
+ (!is_output && (raw32 == 0 || raw32 == 0xffffffff)))
+ return 1;
+ p += sizeof(__u32);
+ }
+
+ if (trace->type.bit4) {
+ if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff)
+ return 1;
+ p += sizeof(__u32);
+ }
+
+ if (trace->type.bit5) {
+ if (__be32_to_cpu(*((__u32 *)p)) != cnf.ns_data)
+ return 1;
+ p += sizeof(__u32);
+ }
+
+ if (trace->type.bit6) {
+ if (__be32_to_cpu(*((__u32 *)p)) == 0xffffffff)
+ return 1;
+ p += sizeof(__u32);
+ }
+
+ if (trace->type.bit7) {
+ if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff)
+ return 1;
+ p += sizeof(__u32);
+ }
+
+ if (trace->type.bit8) {
+ raw64 = __be64_to_cpu(*((__u64 *)p));
+ if (cnf.hlim != (raw64 >> 56) ||
+ cnf.wide != (raw64 & 0xffffffffffffff))
+ return 1;
+ p += sizeof(__u64);
+ }
+
+ if (trace->type.bit9) {
+ if (__be32_to_cpu(*((__u32 *)p)) != cnf.ingr_wide)
+ return 1;
+ p += sizeof(__u32);
+
+ if (__be32_to_cpu(*((__u32 *)p)) != cnf.egr_wide)
+ return 1;
+ p += sizeof(__u32);
+ }
+
+ if (trace->type.bit10) {
+ if (__be64_to_cpu(*((__u64 *)p)) != cnf.ns_wide)
+ return 1;
+ p += sizeof(__u64);
+ }
+
+ if (trace->type.bit11) {
+ if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff)
+ return 1;
+ p += sizeof(__u32);
+ }
+
+ if (trace->type.bit22) {
+ len = cnf.sc_data ? strlen(cnf.sc_data) : 0;
+ aligned = cnf.sc_data ? __ALIGN_KERNEL(len, 4) : 0;
+
+ raw32 = __be32_to_cpu(*((__u32 *)p));
+ if (aligned != (raw32 >> 24) * 4 ||
+ cnf.sc_id != (raw32 & 0xffffff))
+ return 1;
+ p += sizeof(__u32);
+
+ if (cnf.sc_data) {
+ if (strncmp((char *)p, cnf.sc_data, len))
+ return 1;
+
+ p += len;
+ aligned -= len;
+
+ while (aligned--) {
+ if (*p != '\0')
+ return 1;
+ p += sizeof(__u8);
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int check_ioam_trace(int tid, struct ioam6_trace_hdr *trace,
+ __u32 trace_type, __u8 trace_size, __u16 ioam_ns)
+{
+ if (check_header(tid, trace, trace_type, trace_size, ioam_ns))
+ return 1;
+
+ if (tid > __TEST_OUT_MIN && tid < __TEST_OUT_MAX)
+ return check_data(trace, trace_size, node1, true);
+
+ if (tid > __TEST_IN_MIN && tid < __TEST_IN_MAX)
+ return check_data(trace, trace_size, node2, false);
+
+ return 1;
+}
+
+static int str2id(const char *tname)
+{
+ if (!strcmp("output_undef_ns", tname))
+ return TEST_OUT_UNDEF_NS;
+ if (!strcmp("output_no_room", tname))
+ return TEST_OUT_NO_ROOM;
+ if (!strcmp("output_no_room_oss", tname))
+ return TEST_OUT_NO_ROOM_OSS;
+ if (!strcmp("output_bit0", tname))
+ return TEST_OUT_BIT0;
+ if (!strcmp("output_bit1", tname))
+ return TEST_OUT_BIT1;
+ if (!strcmp("output_bit2", tname))
+ return TEST_OUT_BIT2;
+ if (!strcmp("output_bit3", tname))
+ return TEST_OUT_BIT3;
+ if (!strcmp("output_bit4", tname))
+ return TEST_OUT_BIT4;
+ if (!strcmp("output_bit5", tname))
+ return TEST_OUT_BIT5;
+ if (!strcmp("output_bit6", tname))
+ return TEST_OUT_BIT6;
+ if (!strcmp("output_bit7", tname))
+ return TEST_OUT_BIT7;
+ if (!strcmp("output_bit8", tname))
+ return TEST_OUT_BIT8;
+ if (!strcmp("output_bit9", tname))
+ return TEST_OUT_BIT9;
+ if (!strcmp("output_bit10", tname))
+ return TEST_OUT_BIT10;
+ if (!strcmp("output_bit11", tname))
+ return TEST_OUT_BIT11;
+ if (!strcmp("output_bit22", tname))
+ return TEST_OUT_BIT22;
+ if (!strcmp("output_size4", tname))
+ return TEST_OUT_SIZE4;
+ if (!strcmp("output_size8", tname))
+ return TEST_OUT_SIZE8;
+ if (!strcmp("output_size12", tname))
+ return TEST_OUT_SIZE12;
+ if (!strcmp("output_size16", tname))
+ return TEST_OUT_SIZE16;
+ if (!strcmp("output_size20", tname))
+ return TEST_OUT_SIZE20;
+ if (!strcmp("output_size24", tname))
+ return TEST_OUT_SIZE24;
+ if (!strcmp("output_size28", tname))
+ return TEST_OUT_SIZE28;
+ if (!strcmp("output_size32", tname))
+ return TEST_OUT_SIZE32;
+ if (!strcmp("output_size36", tname))
+ return TEST_OUT_SIZE36;
+ if (!strcmp("output_size40", tname))
+ return TEST_OUT_SIZE40;
+ if (!strcmp("output_size44", tname))
+ return TEST_OUT_SIZE44;
+ if (!strcmp("output_size48", tname))
+ return TEST_OUT_SIZE48;
+ if (!strcmp("output_size52", tname))
+ return TEST_OUT_SIZE52;
+ if (!strcmp("output_size56", tname))
+ return TEST_OUT_SIZE56;
+ if (!strcmp("output_size60", tname))
+ return TEST_OUT_SIZE60;
+ if (!strcmp("output_size64", tname))
+ return TEST_OUT_SIZE64;
+ if (!strcmp("output_size68", tname))
+ return TEST_OUT_SIZE68;
+ if (!strcmp("output_size72", tname))
+ return TEST_OUT_SIZE72;
+ if (!strcmp("output_size76", tname))
+ return TEST_OUT_SIZE76;
+ if (!strcmp("output_size80", tname))
+ return TEST_OUT_SIZE80;
+ if (!strcmp("output_size84", tname))
+ return TEST_OUT_SIZE84;
+ if (!strcmp("output_size88", tname))
+ return TEST_OUT_SIZE88;
+ if (!strcmp("output_size92", tname))
+ return TEST_OUT_SIZE92;
+ if (!strcmp("output_size96", tname))
+ return TEST_OUT_SIZE96;
+ if (!strcmp("output_size100", tname))
+ return TEST_OUT_SIZE100;
+ if (!strcmp("output_size104", tname))
+ return TEST_OUT_SIZE104;
+ if (!strcmp("output_size108", tname))
+ return TEST_OUT_SIZE108;
+ if (!strcmp("output_size112", tname))
+ return TEST_OUT_SIZE112;
+ if (!strcmp("output_size116", tname))
+ return TEST_OUT_SIZE116;
+ if (!strcmp("output_size120", tname))
+ return TEST_OUT_SIZE120;
+ if (!strcmp("output_size124", tname))
+ return TEST_OUT_SIZE124;
+ if (!strcmp("output_size128", tname))
+ return TEST_OUT_SIZE128;
+ if (!strcmp("output_size132", tname))
+ return TEST_OUT_SIZE132;
+ if (!strcmp("output_size136", tname))
+ return TEST_OUT_SIZE136;
+ if (!strcmp("output_size140", tname))
+ return TEST_OUT_SIZE140;
+ if (!strcmp("output_size144", tname))
+ return TEST_OUT_SIZE144;
+ if (!strcmp("output_size148", tname))
+ return TEST_OUT_SIZE148;
+ if (!strcmp("output_size152", tname))
+ return TEST_OUT_SIZE152;
+ if (!strcmp("output_size156", tname))
+ return TEST_OUT_SIZE156;
+ if (!strcmp("output_size160", tname))
+ return TEST_OUT_SIZE160;
+ if (!strcmp("output_size164", tname))
+ return TEST_OUT_SIZE164;
+ if (!strcmp("output_size168", tname))
+ return TEST_OUT_SIZE168;
+ if (!strcmp("output_size172", tname))
+ return TEST_OUT_SIZE172;
+ if (!strcmp("output_size176", tname))
+ return TEST_OUT_SIZE176;
+ if (!strcmp("output_size180", tname))
+ return TEST_OUT_SIZE180;
+ if (!strcmp("output_size184", tname))
+ return TEST_OUT_SIZE184;
+ if (!strcmp("output_size188", tname))
+ return TEST_OUT_SIZE188;
+ if (!strcmp("output_size192", tname))
+ return TEST_OUT_SIZE192;
+ if (!strcmp("output_size196", tname))
+ return TEST_OUT_SIZE196;
+ if (!strcmp("output_size200", tname))
+ return TEST_OUT_SIZE200;
+ if (!strcmp("output_size204", tname))
+ return TEST_OUT_SIZE204;
+ if (!strcmp("output_size208", tname))
+ return TEST_OUT_SIZE208;
+ if (!strcmp("output_size212", tname))
+ return TEST_OUT_SIZE212;
+ if (!strcmp("output_size216", tname))
+ return TEST_OUT_SIZE216;
+ if (!strcmp("output_size220", tname))
+ return TEST_OUT_SIZE220;
+ if (!strcmp("output_size224", tname))
+ return TEST_OUT_SIZE224;
+ if (!strcmp("output_size228", tname))
+ return TEST_OUT_SIZE228;
+ if (!strcmp("output_size232", tname))
+ return TEST_OUT_SIZE232;
+ if (!strcmp("output_size236", tname))
+ return TEST_OUT_SIZE236;
+ if (!strcmp("output_size240", tname))
+ return TEST_OUT_SIZE240;
+ if (!strcmp("output_size244", tname))
+ return TEST_OUT_SIZE244;
+ if (!strcmp("output_full_supp_trace", tname))
+ return TEST_OUT_FULL_SUPP_TRACE;
+ if (!strcmp("input_undef_ns", tname))
+ return TEST_IN_UNDEF_NS;
+ if (!strcmp("input_no_room", tname))
+ return TEST_IN_NO_ROOM;
+ if (!strcmp("input_no_room_oss", tname))
+ return TEST_IN_NO_ROOM_OSS;
+ if (!strcmp("input_disabled", tname))
+ return TEST_IN_DISABLED;
+ if (!strcmp("input_oflag", tname))
+ return TEST_IN_OFLAG;
+ if (!strcmp("input_bit0", tname))
+ return TEST_IN_BIT0;
+ if (!strcmp("input_bit1", tname))
+ return TEST_IN_BIT1;
+ if (!strcmp("input_bit2", tname))
+ return TEST_IN_BIT2;
+ if (!strcmp("input_bit3", tname))
+ return TEST_IN_BIT3;
+ if (!strcmp("input_bit4", tname))
+ return TEST_IN_BIT4;
+ if (!strcmp("input_bit5", tname))
+ return TEST_IN_BIT5;
+ if (!strcmp("input_bit6", tname))
+ return TEST_IN_BIT6;
+ if (!strcmp("input_bit7", tname))
+ return TEST_IN_BIT7;
+ if (!strcmp("input_bit8", tname))
+ return TEST_IN_BIT8;
+ if (!strcmp("input_bit9", tname))
+ return TEST_IN_BIT9;
+ if (!strcmp("input_bit10", tname))
+ return TEST_IN_BIT10;
+ if (!strcmp("input_bit11", tname))
+ return TEST_IN_BIT11;
+ if (!strcmp("input_bit22", tname))
+ return TEST_IN_BIT22;
+ if (!strcmp("input_size4", tname))
+ return TEST_IN_SIZE4;
+ if (!strcmp("input_size8", tname))
+ return TEST_IN_SIZE8;
+ if (!strcmp("input_size12", tname))
+ return TEST_IN_SIZE12;
+ if (!strcmp("input_size16", tname))
+ return TEST_IN_SIZE16;
+ if (!strcmp("input_size20", tname))
+ return TEST_IN_SIZE20;
+ if (!strcmp("input_size24", tname))
+ return TEST_IN_SIZE24;
+ if (!strcmp("input_size28", tname))
+ return TEST_IN_SIZE28;
+ if (!strcmp("input_size32", tname))
+ return TEST_IN_SIZE32;
+ if (!strcmp("input_size36", tname))
+ return TEST_IN_SIZE36;
+ if (!strcmp("input_size40", tname))
+ return TEST_IN_SIZE40;
+ if (!strcmp("input_size44", tname))
+ return TEST_IN_SIZE44;
+ if (!strcmp("input_size48", tname))
+ return TEST_IN_SIZE48;
+ if (!strcmp("input_size52", tname))
+ return TEST_IN_SIZE52;
+ if (!strcmp("input_size56", tname))
+ return TEST_IN_SIZE56;
+ if (!strcmp("input_size60", tname))
+ return TEST_IN_SIZE60;
+ if (!strcmp("input_size64", tname))
+ return TEST_IN_SIZE64;
+ if (!strcmp("input_size68", tname))
+ return TEST_IN_SIZE68;
+ if (!strcmp("input_size72", tname))
+ return TEST_IN_SIZE72;
+ if (!strcmp("input_size76", tname))
+ return TEST_IN_SIZE76;
+ if (!strcmp("input_size80", tname))
+ return TEST_IN_SIZE80;
+ if (!strcmp("input_size84", tname))
+ return TEST_IN_SIZE84;
+ if (!strcmp("input_size88", tname))
+ return TEST_IN_SIZE88;
+ if (!strcmp("input_size92", tname))
+ return TEST_IN_SIZE92;
+ if (!strcmp("input_size96", tname))
+ return TEST_IN_SIZE96;
+ if (!strcmp("input_size100", tname))
+ return TEST_IN_SIZE100;
+ if (!strcmp("input_size104", tname))
+ return TEST_IN_SIZE104;
+ if (!strcmp("input_size108", tname))
+ return TEST_IN_SIZE108;
+ if (!strcmp("input_size112", tname))
+ return TEST_IN_SIZE112;
+ if (!strcmp("input_size116", tname))
+ return TEST_IN_SIZE116;
+ if (!strcmp("input_size120", tname))
+ return TEST_IN_SIZE120;
+ if (!strcmp("input_size124", tname))
+ return TEST_IN_SIZE124;
+ if (!strcmp("input_size128", tname))
+ return TEST_IN_SIZE128;
+ if (!strcmp("input_size132", tname))
+ return TEST_IN_SIZE132;
+ if (!strcmp("input_size136", tname))
+ return TEST_IN_SIZE136;
+ if (!strcmp("input_size140", tname))
+ return TEST_IN_SIZE140;
+ if (!strcmp("input_size144", tname))
+ return TEST_IN_SIZE144;
+ if (!strcmp("input_size148", tname))
+ return TEST_IN_SIZE148;
+ if (!strcmp("input_size152", tname))
+ return TEST_IN_SIZE152;
+ if (!strcmp("input_size156", tname))
+ return TEST_IN_SIZE156;
+ if (!strcmp("input_size160", tname))
+ return TEST_IN_SIZE160;
+ if (!strcmp("input_size164", tname))
+ return TEST_IN_SIZE164;
+ if (!strcmp("input_size168", tname))
+ return TEST_IN_SIZE168;
+ if (!strcmp("input_size172", tname))
+ return TEST_IN_SIZE172;
+ if (!strcmp("input_size176", tname))
+ return TEST_IN_SIZE176;
+ if (!strcmp("input_size180", tname))
+ return TEST_IN_SIZE180;
+ if (!strcmp("input_size184", tname))
+ return TEST_IN_SIZE184;
+ if (!strcmp("input_size188", tname))
+ return TEST_IN_SIZE188;
+ if (!strcmp("input_size192", tname))
+ return TEST_IN_SIZE192;
+ if (!strcmp("input_size196", tname))
+ return TEST_IN_SIZE196;
+ if (!strcmp("input_size200", tname))
+ return TEST_IN_SIZE200;
+ if (!strcmp("input_size204", tname))
+ return TEST_IN_SIZE204;
+ if (!strcmp("input_size208", tname))
+ return TEST_IN_SIZE208;
+ if (!strcmp("input_size212", tname))
+ return TEST_IN_SIZE212;
+ if (!strcmp("input_size216", tname))
+ return TEST_IN_SIZE216;
+ if (!strcmp("input_size220", tname))
+ return TEST_IN_SIZE220;
+ if (!strcmp("input_size224", tname))
+ return TEST_IN_SIZE224;
+ if (!strcmp("input_size228", tname))
+ return TEST_IN_SIZE228;
+ if (!strcmp("input_size232", tname))
+ return TEST_IN_SIZE232;
+ if (!strcmp("input_size236", tname))
+ return TEST_IN_SIZE236;
+ if (!strcmp("input_size240", tname))
+ return TEST_IN_SIZE240;
+ if (!strcmp("input_size244", tname))
+ return TEST_IN_SIZE244;
+ if (!strcmp("input_full_supp_trace", tname))
+ return TEST_IN_FULL_SUPP_TRACE;
+
+ return -1;
+}
+
+static int ipv6_addr_equal(const struct in6_addr *a1, const struct in6_addr *a2)
+{
+ return ((a1->s6_addr32[0] ^ a2->s6_addr32[0]) |
+ (a1->s6_addr32[1] ^ a2->s6_addr32[1]) |
+ (a1->s6_addr32[2] ^ a2->s6_addr32[2]) |
+ (a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0;
+}
+
+static int get_u32(__u32 *val, const char *arg, int base)
+{
+ unsigned long res;
+ char *ptr;
+
+ if (!arg || !*arg)
+ return -1;
+ res = strtoul(arg, &ptr, base);
+
+ if (!ptr || ptr == arg || *ptr)
+ return -1;
+
+ if (res == ULONG_MAX && errno == ERANGE)
+ return -1;
+
+ if (res > 0xFFFFFFFFUL)
+ return -1;
+
+ *val = res;
+ return 0;
+}
+
+static int get_u16(__u16 *val, const char *arg, int base)
+{
+ unsigned long res;
+ char *ptr;
+
+ if (!arg || !*arg)
+ return -1;
+ res = strtoul(arg, &ptr, base);
+
+ if (!ptr || ptr == arg || *ptr)
+ return -1;
+
+ if (res == ULONG_MAX && errno == ERANGE)
+ return -1;
+
+ if (res > 0xFFFFUL)
+ return -1;
+
+ *val = res;
+ return 0;
+}
+
+static int get_u8(__u8 *val, const char *arg, int base)
+{
+ unsigned long res;
+ char *ptr;
+
+ if (!arg || !*arg)
+ return -1;
+ res = strtoul(arg, &ptr, base);
+
+ if (!ptr || ptr == arg || *ptr)
+ return -1;
+
+ if (res == ULONG_MAX && errno == ERANGE)
+ return -1;
+
+ if (res > 0xFFUL)
+ return -1;
+
+ *val = res;
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ __u8 buffer[512], *ptr, nexthdr, tr_size;
+ struct ioam6_trace_hdr *trace;
+ unsigned int hoplen, ret = 1;
+ struct ipv6_hopopt_hdr *hbh;
+ int fd, size, testname_id;
+ struct in6_addr src, dst;
+ struct ioam6_hdr *ioam6;
+ struct timeval timeout;
+ struct ipv6hdr *ipv6;
+ __u32 tr_type;
+ __u16 ioam_ns;
+
+ if (argc != 9)
+ goto out;
+
+ testname_id = str2id(argv[2]);
+
+ if (testname_id < 0 ||
+ inet_pton(AF_INET6, argv[3], &src) != 1 ||
+ inet_pton(AF_INET6, argv[4], &dst) != 1 ||
+ get_u32(&tr_type, argv[5], 16) ||
+ get_u8(&tr_size, argv[6], 0) ||
+ get_u16(&ioam_ns, argv[7], 0))
+ goto out;
+
+ nexthdr = (!strcmp(argv[8], "encap") ? IPPROTO_IPV6 : IPPROTO_ICMPV6);
+
+ hoplen = sizeof(*hbh);
+ hoplen += 2; // 2-byte padding for alignment
+ hoplen += sizeof(*ioam6); // IOAM option header
+ hoplen += sizeof(*trace); // IOAM trace header
+ hoplen += tr_size; // IOAM trace size
+ hoplen += (tr_size % 8); // optional padding
+
+ fd = socket(AF_PACKET, SOCK_DGRAM, __cpu_to_be16(ETH_P_IPV6));
+ if (fd < 0)
+ goto out;
+
+ if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE,
+ argv[1], strlen(argv[1])))
+ goto close;
+
+ timeout.tv_sec = 1;
+ timeout.tv_usec = 0;
+ if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO,
+ (const char *)&timeout, sizeof(timeout)))
+ goto close;
+recv:
+ size = recv(fd, buffer, sizeof(buffer), 0);
+ if (size <= 0)
+ goto close;
+
+ ipv6 = (struct ipv6hdr *)buffer;
+
+ /* Skip packets that do not have the expected src/dst address or that
+ * do not have a Hop-by-hop.
+ */
+ if (!ipv6_addr_equal(&ipv6->saddr, &src) ||
+ !ipv6_addr_equal(&ipv6->daddr, &dst) ||
+ ipv6->nexthdr != IPPROTO_HOPOPTS)
+ goto recv;
+
+ /* Check Hbh's Next Header and Size. */
+ hbh = (struct ipv6_hopopt_hdr *)(buffer + sizeof(*ipv6));
+ if (hbh->nexthdr != nexthdr || hbh->hdrlen != (hoplen >> 3) - 1)
+ goto close;
+
+ /* Check we have a 2-byte padding for alignment. */
+ ptr = (__u8 *)hbh + sizeof(*hbh);
+ if (ptr[0] != IPV6_TLV_PADN && ptr[1] != 0)
+ goto close;
+
+ /* Check we now have the IOAM option. */
+ ptr += 2;
+ if (ptr[0] != IPV6_TLV_IOAM)
+ goto close;
+
+ /* Check its size and the IOAM option type. */
+ ioam6 = (struct ioam6_hdr *)ptr;
+ if (ioam6->opt_len != sizeof(*ioam6) - 2 + sizeof(*trace) + tr_size ||
+ ioam6->type != IOAM6_TYPE_PREALLOC)
+ goto close;
+
+ trace = (struct ioam6_trace_hdr *)(ptr + sizeof(*ioam6));
+
+ /* Check the trailing 4-byte padding (potentially). */
+ ptr = (__u8 *)trace + sizeof(*trace) + tr_size;
+ if (tr_size % 8 && ptr[0] != IPV6_TLV_PADN && ptr[1] != 2 &&
+ ptr[2] != 0 && ptr[3] != 0)
+ goto close;
+
+ /* Check the IOAM header and data. */
+ ret = check_ioam_trace(testname_id, trace, tr_type, tr_size, ioam_ns);
+close:
+ close(fd);
+out:
+ return ret;
+}
--
2.34.1
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