[net-next] selftests: net: ioam: add tunsrc support

Message ID	20240907164245.89627-1-justin.iurman@uliege.be (mailing list archive)
State	New
Headers	show Received: from serv108.segi.ulg.ac.be (serv108.segi.ulg.ac.be [139.165.32.111]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 650191537AC; Sat, 7 Sep 2024 16:50:31 +0000 (UTC) From: Justin Iurman <justin.iurman@uliege.be> To: netdev@vger.kernel.org Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, shuah@kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, justin.iurman@uliege.be Subject: [PATCH net-next] selftests: net: ioam: add tunsrc support Date: Sat, 7 Sep 2024 18:42:45 +0200 Message-Id: <20240907164245.89627-1-justin.iurman@uliege.be> Precedence: bulk MIME-Version: 1.0 Content-Transfer-Encoding: 8bit
Series	[net-next] selftests: net: ioam: add tunsrc support \| expand [net-next] selftests: net: ioam: add tunsrc support

diff --git a/tools/testing/selftests/net/ioam6.sh b/tools/testing/selftests/net/ioam6.sh index 12491850ae98..845c26dd01a9 100755 --- a/tools/testing/selftests/net/ioam6.sh +++ b/tools/testing/selftests/net/ioam6.sh @@ -3,119 +3,106 @@ # # Author: Justin Iurman <justin.iurman@uliege.be> # -# This script evaluates the IOAM insertion for IPv6 by checking the IOAM data -# consistency directly inside packets on the receiver side. Tests are divided -# into three categories: OUTPUT (evaluates the IOAM processing by the sender), -# INPUT (evaluates the IOAM processing by a receiver) and GLOBAL (evaluates -# wider use cases that do not fall into the other two categories). Both OUTPUT -# and INPUT tests only use a two-node topology (alpha and beta), while GLOBAL -# tests use the entire three-node topology (alpha, beta, gamma). Each test is -# documented inside its own handler in the code below. +# 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. # -# An IOAM domain is configured from Alpha to Gamma but not on the reverse path. -# When either Beta or Gamma is the destination (depending on the test category), -# Alpha adds an IOAM option (Pre-allocated Trace) inside a Hop-by-hop. +# 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. # -# +-------------------+ +-------------------+ -# | | | | -# | Alpha netns | | Gamma netns | -# | | | | -# | +-------------+ | | +-------------+ | -# | | veth0 | | | | veth0 | | -# | | db01::2/64 | | | | db02::2/64 | | -# | +-------------+ | | +-------------+ | -# | . | | . | -# +-------------------+ +-------------------+ -# . . -# . . -# . . -# +----------------------------------------------------+ -# | . . | -# | +-------------+ +-------------+ | -# | | veth0 | | veth1 | | -# | | db01::1/64 | ................ | db02::1/64 | | -# | +-------------+ +-------------+ | -# | | -# | Beta netns | -# | | -# +----------------------------------------------------+ +# ** 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 | 0xdeadbee0 | -# +-----------------------------------------------------------+ -# | Namespace Wide Data | 0xcafec0caf00dc0de | -# +-----------------------------------------------------------+ -# | Schema ID | 777 | -# +-----------------------------------------------------------+ -# | Schema Data | something that will be 4n-aligned | -# +-----------------------------------------------------------+ # # -# ============================================================= -# | Beta - IOAM configuration | -# +===========================================================+ -# | Node ID | 2 | -# +-----------------------------------------------------------+ -# | Node Wide ID | 22222222 | -# +-----------------------------------------------------------+ -# | Ingress ID | 201 | -# +-----------------------------------------------------------+ -# | Ingress Wide ID | 201201 | -# +-----------------------------------------------------------+ -# | Egress ID | 202 | -# +-----------------------------------------------------------+ -# | Egress Wide ID | 202202 | -# +-----------------------------------------------------------+ -# | Namespace Data | 0xdeadbee1 | -# +-----------------------------------------------------------+ -# | Namespace Wide Data | 0xcafec0caf11dc0de | -# +-----------------------------------------------------------+ -# | Schema ID | 666 | -# +-----------------------------------------------------------+ -# | Schema Data | Hello there -Obi | -# +-----------------------------------------------------------+ +# +==========================================================+ +# | 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 | +# +---------------------+------------------------------------+ # # -# ============================================================= -# | Gamma - IOAM configuration | -# +===========================================================+ -# | Node ID | 3 | -# +-----------------------------------------------------------+ -# | Node Wide ID | 33333333 | -# +-----------------------------------------------------------+ -# | Ingress ID | 301 | -# +-----------------------------------------------------------+ -# | Ingress Wide ID | 301301 | -# +-----------------------------------------------------------+ -# | Egress ID | 0xffff (default value) | -# +-----------------------------------------------------------+ -# | Egress Wide ID | 0xffffffff (default value) | -# +-----------------------------------------------------------+ -# | Namespace Data | 0xdeadbee2 | -# +-----------------------------------------------------------+ -# | Namespace Wide Data | 0xcafec0caf22dc0de | -# +-----------------------------------------------------------+ -# | Schema ID | 0xffffff (= None) | -# +-----------------------------------------------------------+ -# | Schema Data | | -# +-----------------------------------------------------------+ +# +==========================================================+ +# | 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 @@ -128,64 +115,69 @@ source lib.sh ################################################################################ ALPHA=( - 1 # ID - 11111111 # Wide ID - 0xffff # Ingress ID - 0xffffffff # Ingress Wide ID - 101 # Egress ID - 101101 # Egress Wide ID - 0xdeadbee0 # Namespace Data - 0xcafec0caf00dc0de # Namespace Wide Data - 777 # Schema ID (0xffffff = None) - "something that will be 4n-aligned" # Schema Data + 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 - 22222222 - 201 - 201201 - 202 - 202202 - 0xdeadbee1 - 0xcafec0caf11dc0de - 666 - "Hello there -Obi" + 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) ) -GAMMA=( - 3 - 33333333 - 301 - 301301 - 0xffff - 0xffffffff - 0xdeadbee2 - 0xcafec0caf22dc0de - 0xffffff - "" -) +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=" - out_undef_ns - out_no_room - out_bits - out_full_supp_trace + output_undef_ns + output_no_room + output_no_room_oss + output_bits + output_sizes + output_full_supp_trace " TESTS_INPUT=" - in_undef_ns - in_no_room - in_oflag - in_bits - in_full_supp_trace + input_undef_ns + input_no_room + input_no_room_oss + input_disabled + input_oflag + input_bits + input_sizes + input_full_supp_trace " -TESTS_GLOBAL=" - fwd_full_supp_trace -" - - ################################################################################ # # # LIBRARY # @@ -194,66 +186,64 @@ TESTS_GLOBAL=" check_kernel_compatibility() { - setup_ns ioam_tmp_node - ip link add name veth0 netns $ioam_tmp_node type veth \ - peer name veth1 netns $ioam_tmp_node + setup_ns ioam_tmp_node &>/dev/null + local ret=$? - ip -netns $ioam_tmp_node link set veth0 up - ip -netns $ioam_tmp_node link set veth1 up + ip link add name veth0 netns $ioam_tmp_node type veth \ + peer name veth1 netns $ioam_tmp_node &>/dev/null + ret=$((ret + $?)) - ip -netns $ioam_tmp_node ioam namespace add 0 - ns_ad=$? + ip -netns $ioam_tmp_node link set veth0 up &>/dev/null + ret=$((ret + $?)) - ip -netns $ioam_tmp_node ioam namespace show | grep -q "namespace 0" - ns_sh=$? + ip -netns $ioam_tmp_node link set veth1 up &>/dev/null + ret=$((ret + $?)) - if [[ $ns_ad != 0 || $ns_sh != 0 ]] + if [ $ret != 0 ] then - echo "SKIP: kernel version probably too old, missing ioam support" - ip link del veth0 2>/dev/null || true - cleanup_ns $ioam_tmp_node || true + echo "SKIP: Setup failed." + cleanup_ns $ioam_tmp_node exit $ksft_skip fi - ip -netns $ioam_tmp_node route add db02::/64 encap ioam6 mode inline \ - trace prealloc type 0x800000 ns 0 size 4 dev veth0 - tr_ad=$? + ip -netns $ioam_tmp_node route add 2001:db8:2::/64 \ + encap ioam6 trace prealloc type 0x800000 ns 0 size 4 dev veth0 &>/dev/null + ret=$? - ip -netns $ioam_tmp_node -6 route | grep -q "encap ioam6" - tr_sh=$? + ip -netns $ioam_tmp_node -6 route 2>/dev/null | grep -q "encap ioam6" + ret=$((ret + $?)) - if [[ $tr_ad != 0 || $tr_sh != 0 ]] + if [ $ret != 0 ] then - echo "SKIP: cannot attach an ioam trace to a route, did you compile" \ - "without CONFIG_IPV6_IOAM6_LWTUNNEL?" - ip link del veth0 2>/dev/null || true - cleanup_ns $ioam_tmp_node || true + 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 - ip link del veth0 2>/dev/null || true - cleanup_ns $ioam_tmp_node || true + cleanup_ns $ioam_tmp_node - lsmod | grep -q "ip6_tunnel" + lsmod 2>/dev/null | grep -q "ip6_tunnel" ip6tnl_loaded=$? - if [ $ip6tnl_loaded = 0 ] + if [ $ip6tnl_loaded == 0 ] then encap_tests=0 else modprobe ip6_tunnel &>/dev/null - lsmod | grep -q "ip6_tunnel" + lsmod 2>/dev/null | grep -q "ip6_tunnel" encap_tests=$? if [ $encap_tests != 0 ] then - ip a | grep -q "ip6tnl0" + ip a 2>/dev/null | grep -q "ip6tnl0" encap_tests=$? if [ $encap_tests != 0 ] then echo "Note: ip6_tunnel not found neither as a module nor inside the" \ - "kernel, tests that require it (encap mode) will be omitted" + "kernel. Any tests that require it will be skipped." fi fi fi @@ -261,477 +251,1400 @@ check_kernel_compatibility() cleanup() { - ip link del ioam-veth-alpha 2>/dev/null || true - ip link del ioam-veth-gamma 2>/dev/null || true - - cleanup_ns $ioam_node_alpha $ioam_node_beta $ioam_node_gamma || true + cleanup_ns $ioam_node_alpha $ioam_node_beta $ioam_node_gamma if [ $ip6tnl_loaded != 0 ] then - modprobe -r ip6_tunnel 2>/dev/null || true + modprobe -r ip6_tunnel &>/dev/null fi } setup() { - setup_ns ioam_node_alpha ioam_node_beta ioam_node_gamma + 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 + 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 - - ip -netns $ioam_node_alpha link set ioam-veth-alpha name veth0 - ip -netns $ioam_node_beta link set ioam-veth-betaL name veth0 - ip -netns $ioam_node_beta link set ioam-veth-betaR name veth1 - ip -netns $ioam_node_gamma link set ioam-veth-gamma name veth0 - - ip -netns $ioam_node_alpha addr add db01::2/64 dev veth0 - ip -netns $ioam_node_alpha link set veth0 up - ip -netns $ioam_node_alpha link set lo up - ip -netns $ioam_node_alpha route add db02::/64 via db01::1 dev veth0 - ip -netns $ioam_node_alpha route del db01::/64 - ip -netns $ioam_node_alpha route add db01::/64 dev veth0 - - ip -netns $ioam_node_beta addr add db01::1/64 dev veth0 - ip -netns $ioam_node_beta addr add db02::1/64 dev veth1 - ip -netns $ioam_node_beta link set veth0 up - ip -netns $ioam_node_beta link set veth1 up - ip -netns $ioam_node_beta link set lo up - - ip -netns $ioam_node_gamma addr add db02::2/64 dev veth0 - ip -netns $ioam_node_gamma link set veth0 up - ip -netns $ioam_node_gamma link set lo up - ip -netns $ioam_node_gamma route add db01::/64 via db02::1 dev veth0 - - # - IOAM config - - ip netns exec $ioam_node_alpha sysctl -wq net.ipv6.ioam6_id=${ALPHA[0]} - ip netns exec $ioam_node_alpha sysctl -wq net.ipv6.ioam6_id_wide=${ALPHA[1]} - ip netns exec $ioam_node_alpha sysctl -wq net.ipv6.conf.veth0.ioam6_id=${ALPHA[4]} - ip netns exec $ioam_node_alpha sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${ALPHA[5]} - ip -netns $ioam_node_alpha ioam namespace add 123 data ${ALPHA[6]} wide ${ALPHA[7]} - ip -netns $ioam_node_alpha ioam schema add ${ALPHA[8]} "${ALPHA[9]}" - ip -netns $ioam_node_alpha ioam namespace set 123 schema ${ALPHA[8]} - - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.all.forwarding=1 - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.ioam6_id=${BETA[0]} - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.ioam6_id_wide=${BETA[1]} - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth0.ioam6_id=${BETA[2]} - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${BETA[3]} - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth1.ioam6_id=${BETA[4]} - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth1.ioam6_id_wide=${BETA[5]} - ip -netns $ioam_node_beta ioam namespace add 123 data ${BETA[6]} wide ${BETA[7]} - ip -netns $ioam_node_beta ioam schema add ${BETA[8]} "${BETA[9]}" - ip -netns $ioam_node_beta ioam namespace set 123 schema ${BETA[8]} - - ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.ioam6_id=${GAMMA[0]} - ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.ioam6_id_wide=${GAMMA[1]} - ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 - ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.conf.veth0.ioam6_id=${GAMMA[2]} - ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${GAMMA[3]} - ip -netns $ioam_node_gamma ioam namespace add 123 data ${GAMMA[6]} wide ${GAMMA[7]} + 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 db02::2 &>/dev/null + ip netns exec $ioam_node_alpha ping6 -c 5 -W 1 2001:db8:2::2 &>/dev/null if [ $? != 0 ] then - echo "Setup FAILED" - cleanup &>/dev/null - exit 0 + echo "SKIP: Setup failed." + cleanup + exit $ksft_skip fi } log_test_passed() { - local desc=$1 - printf "TEST: %-60s [ OK ]\n" "${desc}" + printf " - TEST: %-57s [ OK ]\n" "$1" + npassed=$((npassed+1)) } -log_test_failed() +log_test_skipped() { - local desc=$1 - printf "TEST: %-60s [FAIL]\n" "${desc}" + printf " - TEST: %-57s [SKIP]\n" "$1" + nskipped=$((nskipped+1)) } -log_results() +log_test_failed() { - echo "- Tests passed: ${npassed}" - echo "- Tests failed: ${nfailed}" + printf " - TEST: %-57s [FAIL]\n" "$1" + nfailed=$((nfailed+1)) } run_test() { local name=$1 local desc=$2 - local node_src=$3 - local node_dst=$4 - local ip6_dst=$5 - local trace_type=$6 - local ioam_ns=$7 - local type=$8 - - ip netns exec $node_dst ./ioam6_parser $name $trace_type $ioam_ns $type & + 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 $node_src ping6 -t 64 -c 1 -W 1 $ip6_dst &>/dev/null + ip netns exec $ioam_node_alpha ping6 -t 64 -c 1 -W 1 2001:db8:2::2 &>/dev/null if [ $? != 0 ] then - nfailed=$((nfailed+1)) log_test_failed "${desc}" kill -2 $spid &>/dev/null else wait $spid - if [ $? = 0 ] - then - npassed=$((npassed+1)) - log_test_passed "${desc}" - else - nfailed=$((nfailed+1)) - log_test_failed "${desc}" - fi + [ $? == 0 ] && log_test_passed "${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 "%0.s-" {1..74} + printf "+" + printf "%0.s-" {1..72} + printf "+" echo - echo "OUTPUT tests" - printf "%0.s-" {1..74} + + 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 + ip netns exec $ioam_node_beta \ + sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=0 &>/dev/null - for t in $TESTS_OUTPUT + echo + echo "Inline mode" + for test in $TESTS_OUTPUT do - $t "inline" - [ $encap_tests = 0 ] && $t "encap" + $test "inline" done - # clean OUTPUT settings - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 - ip -netns $ioam_node_alpha route change db01::/64 dev veth0 + echo + 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 "%0.s-" {1..74} + printf "+" + printf "%0.s-" {1..72} + printf "+" echo - echo "INPUT tests" - printf "%0.s-" {1..74} + 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 + ip -netns $ioam_node_alpha ioam namespace del 123 &>/dev/null - for t in $TESTS_INPUT + echo + echo "Inline mode" + for test in $TESTS_INPUT do - $t "inline" - [ $encap_tests = 0 ] && $t "encap" + $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]} - ip -netns $ioam_node_alpha ioam namespace set 123 schema ${ALPHA[8]} - ip -netns $ioam_node_alpha route change db01::/64 dev veth0 + 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 "%0.s-" {1..74} + printf "+" + printf "%0.s-" {1..72} + printf "+" echo - echo "GLOBAL tests" - printf "%0.s-" {1..74} + printf "| %-30s Results %-31s |" + echo + printf "+" + printf "%0.s-" {1..72} + printf "+" echo - for t in $TESTS_GLOBAL - do - $t "inline" - [ $encap_tests = 0 ] && $t "encap" - done - echo - log_results + 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 + 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 ) +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 ) ################################################################################ # # -# OUTPUT tests # +# LOCAL tests # # # -# Two nodes (sender/receiver), IOAM disabled on ingress for the receiver. # ################################################################################ -out_undef_ns() +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 that the encap node won't fill the trace if the chosen IOAM # - # namespace is not configured locally. # + # Make sure the sysctl "net.ipv6.ioam6_id_wide" works as expected. # ############################################################################## - local desc="Unknown IOAM namespace" + local desc="Sysctl net.ipv6.ioam6_id_wide" - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + [ ! -z $1 ] && return - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0x800000 ns 0 size 4 dev veth0 + ip netns exec $ioam_node_alpha \ + sysctl net.ipv6.ioam6_id_wide 2>/dev/null | grep -wq ${ALPHA[1]} - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0x800000 0 $1 + [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}" +} - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down +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}" } -out_no_room() +local_sysctl_ioam_intf_id_wide() { ############################################################################## - # Make sure that the encap node won't fill the trace and will set the # - # Overflow flag since there is no room enough for its data. # + # Make sure the sysctl "net.ipv6.conf.XX.ioam6_id_wide" works as expected. # ############################################################################## - local desc="Missing trace room" + 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}" +} - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up +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" - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0xc00000 ns 123 size 4 dev veth0 + [ ! -z $1 ] && return - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0xc00000 123 $1 + ip netns exec $ioam_node_beta \ + sysctl net.ipv6.conf.veth0.ioam6_enabled 2>/dev/null | grep -wq 1 - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}" } -out_bits() +local_ioam_namespace() { ############################################################################## - # Make sure that, for each trace type bit, the encap node will either: # - # (i) fill the trace with its data when it is a supported bit # - # (ii) not fill the trace with its data when it is an unsupported bit # + # Make sure the creation of an IOAM Namespace works as expected. # ############################################################################## - local desc="Trace type with bit <n> only" + local desc="Create an IOAM Namespace" - local tmp=${bit2size[22]} - bit2size[22]=$(( $tmp + ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) )) + [ ! -z $1 ] && return - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + ip -netns $ioam_node_alpha \ + ioam namespace show 2>/dev/null | grep -wq 123 + local ret=$? - for i in {0..22} - do - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \ - dev veth0 &>/dev/null + ip -netns $ioam_node_alpha \ + ioam namespace show 2>/dev/null | grep -wq ${ALPHA[6]} + ret=$((ret + $?)) - local cmd_res=$? - local descr="${desc/<n>/$i}" + 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 - if [[ $i -ge 12 && $i -le 21 ]] + [ -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 - if [ $cmd_res != 0 ] - then - npassed=$((npassed+1)) - log_test_passed "$descr ($1 mode)" - else - nfailed=$((nfailed+1)) - log_test_failed "$descr ($1 mode)" - fi - else - run_test "out_bit$i" "$descr ($1 mode)" $ioam_node_alpha \ - $ioam_node_beta db01::1 ${bit2type[$i]} 123 $1 + local err=1 + break fi done - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + [ -z $err ] && log_test_passed "${desc}" || log_test_failed "${desc}" - bit2size[22]=$tmp + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null } -out_full_supp_trace() +local_route_trace_size_values() { ############################################################################## - # Make sure that the encap node will correctly fill a full trace. Be careful,# - # "full trace" here does NOT mean all bits (only supported ones). # + # Make sure only allowed sizes (multiples of four in [4,244]) are accepted. # ############################################################################## - local desc="Full supported trace" + local desc="Trace Size values" + local mode - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + [ -z $1 ] && return - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0xfff002 ns 123 size 100 dev veth0 + [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1" - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0xfff002 123 $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 - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + if [[ ($? == 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 } ################################################################################ # # -# INPUT tests # +# OUTPUT tests # # # -# Two nodes (sender/receiver), the sender MUST NOT fill the trace upon # -# insertion -> the IOAM namespace configured on the sender is removed # -# and is used in the inserted trace to force the sender not to fill it. # ################################################################################ -in_undef_ns() +output_undef_ns() { ############################################################################## - # Make sure that the receiving node won't fill the trace if the related IOAM # - # namespace is not configured locally. # + # 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" + 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 - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + ip -netns $ioam_node_alpha \ + route change 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 - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0x800000 ns 0 size 4 dev veth0 + if [ $? == 0 ] + then + run_test ${FUNCNAME[0]} "${desc}" $saddr $tr_type $tr_size $ns $1 + else + log_test_failed "${desc}" + fi - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0x800000 0 $1 + 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_beta link set ip6tnl0 down + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null } -in_no_room() +output_no_room() { ############################################################################## - # Make sure that the receiving node won't fill the trace and will set the # - # Overflow flag if there is no room enough for its data. # + # 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 trace room" + 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 - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + if [ "$2" == "tunsrc" ] + then + saddr="2001:db8:1::50" + mode+=" tunsrc 2001:db8:1::50" + fi - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0xc00000 ns 123 size 4 dev veth0 + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0xc00000 123 $1 + 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 - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + 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 } -in_bits() +output_no_room_oss() { ############################################################################## - # Make sure that, for each trace type bit, the receiving node will either: # - # (i) fill the trace with its data when it is a supported bit # - # (ii) not fill the trace with its data when it is an unsupported bit # + # 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="Trace type with bit <n> only" + 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 - local tmp=${bit2size[22]} - bit2size[22]=$(( $tmp + ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) )) + 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" - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + 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 - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \ - dev veth0 + local descr="${desc/<n>/$i}" + + if [[ "$1" == "encap" && $encap_tests != 0 ]] + then + log_test_skipped "${descr}" + continue + fi - run_test "in_bit$i" "${desc/<n>/$i} ($1 mode)" $ioam_node_alpha \ - $ioam_node_beta db01::1 ${bit2type[$i]} 123 $1 + 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 - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + 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 } -in_oflag() +output_sizes() { ############################################################################## - # Make sure that the receiving node won't fill the trace since the Overflow # - # flag is set. # + # Make sure an IOAM encapsulating node allocates supported sizes correctly. # ############################################################################## - local desc="Overflow flag is set" + local desc="Trace Size of <n> bytes" + local ns=0 + local tr_type=0x800000 + local mode="$1" + local saddr="2001:db8:1::2" - # 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 + if [ "$1" == "encap" ] + then + if [ "$2" == "tunsrc" ] + then + saddr="2001:db8:1::50" + mode+=" tunsrc 2001:db8:1::50" + fi - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + 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 db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0xc00000 ns 123 size 4 dev veth0 + local i + for i in $(seq 4 4 244) + do + local descr="${desc/<n>/$i}" - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0xc00000 123 $1 + if [[ "$1" == "encap" && $encap_tests != 0 ]] + then + log_test_skipped "${descr}" + continue + fi - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + 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 - # And we clean the exception for this test to get things back to normal for - # other INPUT tests - ip -netns $ioam_node_alpha ioam namespace del 123 + 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 } -in_full_supp_trace() +output_full_supp_trace() { ############################################################################## - # Make sure that the receiving node will correctly fill a full trace. Be # - # careful, "full trace" here does NOT mean all bits (only supported ones). # + # 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" - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + if [ "$1" == "encap" ] + then + if [ $encap_tests != 0 ] + then + log_test_skipped "${desc}" + return + fi - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0xfff002 ns 123 size 80 dev veth0 + if [ "$2" == "tunsrc" ] + then + saddr="2001:db8:1::50" + mode+=" tunsrc 2001:db8:1::50" + fi - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0xfff002 123 $1 + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + local i + tr_size=$(( ${#ALPHA[9]} + ((4 - (${#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 } ################################################################################ # # -# GLOBAL tests # +# INPUT tests # # # -# Three nodes (sender/router/receiver), IOAM fully enabled on every node. # ################################################################################ -fwd_full_supp_trace() +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 that all three nodes correctly filled the full supported trace # - # by checking that the trace data is consistent with the predefined config. # + # Make sure an IOAM node handles all supported sizes correctly. # ############################################################################## - local desc="Forward - Full supported trace" + 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 - [ "$1" = "encap" ] && mode="$1 tundst db02::2" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_gamma link set ip6tnl0 up + local i + for i in $(seq 4 4 244) + do + local descr="${desc/<n>/$i}" - ip -netns $ioam_node_alpha route change db02::/64 encap ioam6 mode $mode \ - trace prealloc type 0xfff002 ns 123 size 244 via db01::1 dev veth0 + if [[ "$1" == "encap" && $encap_tests != 0 ]] + then + log_test_skipped "${descr}" + continue + fi - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_gamma \ - db02::2 0xfff002 123 $1 + 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 - [ "$1" = "encap" ] && ip -netns $ioam_node_gamma link set ip6tnl0 down + 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 $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null } @@ -742,30 +1655,29 @@ fwd_full_supp_trace() ################################################################################ npassed=0 +nskipped=0 nfailed=0 if [ "$(id -u)" -ne 0 ] then - echo "SKIP: Need root privileges" + 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 - -ip ioam &>/dev/null -if [ $? = 1 ] -then - echo "SKIP: iproute2 too old, missing ioam command" + echo "SKIP: Could not run test without ip tool." exit $ksft_skip fi check_kernel_compatibility - -cleanup &>/dev/null setup run -cleanup &>/dev/null +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 index 895e5bb5044b..de4b5c9e8a74 100644 --- a/tools/testing/selftests/net/ioam6_parser.c +++ b/tools/testing/selftests/net/ioam6_parser.c @@ -8,8 +8,10 @@ #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> @@ -40,7 +42,7 @@ static struct ioam_config node1 = { .egr_id = 101, .ingr_wide = 0xffffffff, /* default value */ .egr_wide = 101101, - .ns_data = 0xdeadbee0, + .ns_data = 0xdeadbeef, .ns_wide = 0xcafec0caf00dc0de, .sc_id = 777, .sc_data = "something that will be 4n-aligned", @@ -54,33 +56,22 @@ static struct ioam_config node2 = { .egr_id = 202, .ingr_wide = 201201, .egr_wide = 202202, - .ns_data = 0xdeadbee1, - .ns_wide = 0xcafec0caf11dc0de, - .sc_id = 666, - .sc_data = "Hello there -Obi", - .hlim = 63, -}; - -static struct ioam_config node3 = { - .id = 3, - .wide = 33333333, - .ingr_id = 301, - .egr_id = 0xffff, /* default value */ - .ingr_wide = 301301, - .egr_wide = 0xffffffff, /* default value */ - .ns_data = 0xdeadbee2, - .ns_wide = 0xcafec0caf22dc0de, + .ns_data = 0xffffffff, /* default value */ + .ns_wide = 0xffffffffffffffff, /* default value */ .sc_id = 0xffffff, /* default value */ .sc_data = NULL, - .hlim = 62, + .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, @@ -94,13 +85,80 @@ enum { 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, @@ -115,36 +173,107 @@ enum { 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, - /********** - * GLOBAL * - **********/ - TEST_FWD_FULL_SUPP_TRACE, + __TEST_IN_MAX, __TEST_MAX, }; -static int check_ioam_header(int tid, struct ioam6_trace_hdr *ioam6h, - __u32 trace_type, __u16 ioam_ns) +static int check_header(int tid, struct ioam6_trace_hdr *trace, + __u32 trace_type, __u8 trace_size, __u16 ioam_ns) { - if (__be16_to_cpu(ioam6h->namespace_id) != ioam_ns || - __be32_to_cpu(ioam6h->type_be32) != (trace_type << 8)) + 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: - return ioam6h->overflow || - ioam6h->nodelen != 1 || - ioam6h->remlen != 1; + 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 !ioam6h->overflow || - ioam6h->nodelen != 2 || - ioam6h->remlen != 1; + 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: @@ -164,9 +293,9 @@ static int check_ioam_header(int tid, struct ioam6_trace_hdr *ioam6h, case TEST_IN_BIT7: case TEST_OUT_BIT11: case TEST_IN_BIT11: - return ioam6h->overflow || - ioam6h->nodelen != 1 || - ioam6h->remlen; + return trace->overflow == 1 || + trace->nodelen != 1 || + trace->remlen != 0; case TEST_OUT_BIT8: case TEST_IN_BIT8: @@ -174,22 +303,145 @@ static int check_ioam_header(int tid, struct ioam6_trace_hdr *ioam6h, case TEST_IN_BIT9: case TEST_OUT_BIT10: case TEST_IN_BIT10: - return ioam6h->overflow || - ioam6h->nodelen != 2 || - ioam6h->remlen; - - case TEST_OUT_BIT22: - case TEST_IN_BIT22: - return ioam6h->overflow || - ioam6h->nodelen || - ioam6h->remlen; + 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: - case TEST_FWD_FULL_SUPP_TRACE: - return ioam6h->overflow || - ioam6h->nodelen != 15 || - ioam6h->remlen; + return trace->overflow == 1 || + trace->nodelen != 15 || + trace->remlen != 0; default: break; @@ -198,167 +450,137 @@ static int check_ioam_header(int tid, struct ioam6_trace_hdr *ioam6h, return 1; } -static int check_ioam6_data(__u8 **p, struct ioam6_trace_hdr *ioam6h, - const struct ioam_config cnf) +static int check_data(struct ioam6_trace_hdr *trace, __u8 trace_size, + const struct ioam_config cnf, bool is_output) { - unsigned int len; + unsigned int len, i; __u8 aligned; __u64 raw64; __u32 raw32; + __u8 *p; - if (ioam6h->type.bit0) { - raw32 = __be32_to_cpu(*((__u32 *)*p)); - if (cnf.hlim != (raw32 >> 24) || cnf.id != (raw32 & 0xffffff)) - return 1; - *p += sizeof(__u32); - } - - if (ioam6h->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 (ioam6h->type.bit2) - *p += sizeof(__u32); - - if (ioam6h->type.bit3) - *p += sizeof(__u32); - - if (ioam6h->type.bit4) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) - return 1; - *p += sizeof(__u32); - } - - if (ioam6h->type.bit5) { - if (__be32_to_cpu(*((__u32 *)*p)) != cnf.ns_data) - return 1; - *p += sizeof(__u32); - } - - if (ioam6h->type.bit6) - *p += sizeof(__u32); + 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; - if (ioam6h->type.bit7) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + for (i = 0; i < trace->remlen * 4; i++) { + if (trace->data[i] != 0) return 1; - *p += sizeof(__u32); } - if (ioam6h->type.bit8) { - raw64 = __be64_to_cpu(*((__u64 *)*p)); - if (cnf.hlim != (raw64 >> 56) || - cnf.wide != (raw64 & 0xffffffffffffff)) - return 1; - *p += sizeof(__u64); - } + if (trace->remlen * 4 == trace_size) + return 0; - if (ioam6h->type.bit9) { - if (__be32_to_cpu(*((__u32 *)*p)) != cnf.ingr_wide) - return 1; - *p += sizeof(__u32); + p = trace->data + trace->remlen * 4; - if (__be32_to_cpu(*((__u32 *)*p)) != cnf.egr_wide) + if (trace->type.bit0) { + raw32 = __be32_to_cpu(*((__u32 *)p)); + if (cnf.hlim != (raw32 >> 24) || cnf.id != (raw32 & 0xffffff)) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit10) { - if (__be64_to_cpu(*((__u64 *)*p)) != cnf.ns_wide) + 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(__u64); + p += sizeof(__u32); } - if (ioam6h->type.bit11) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + 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); + p += sizeof(__u32); } - if (ioam6h->type.bit12) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + 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); + p += sizeof(__u32); } - if (ioam6h->type.bit13) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit4) { + if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit14) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit5) { + if (__be32_to_cpu(*((__u32 *)p)) != cnf.ns_data) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit15) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit6) { + if (__be32_to_cpu(*((__u32 *)p)) == 0xffffffff) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit16) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit7) { + if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit17) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit8) { + raw64 = __be64_to_cpu(*((__u64 *)p)); + if (cnf.hlim != (raw64 >> 56) || + cnf.wide != (raw64 & 0xffffffffffffff)) return 1; - *p += sizeof(__u32); + p += sizeof(__u64); } - if (ioam6h->type.bit18) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit9) { + if (__be32_to_cpu(*((__u32 *)p)) != cnf.ingr_wide) return 1; - *p += sizeof(__u32); - } + p += sizeof(__u32); - if (ioam6h->type.bit19) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (__be32_to_cpu(*((__u32 *)p)) != cnf.egr_wide) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit20) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit10) { + if (__be64_to_cpu(*((__u64 *)p)) != cnf.ns_wide) return 1; - *p += sizeof(__u32); + p += sizeof(__u64); } - if (ioam6h->type.bit21) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit11) { + if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit22) { + 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)); + raw32 = __be32_to_cpu(*((__u32 *)p)); if (aligned != (raw32 >> 24) * 4 || cnf.sc_id != (raw32 & 0xffffff)) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); if (cnf.sc_data) { - if (strncmp((char *)*p, cnf.sc_data, len)) + if (strncmp((char *)p, cnf.sc_data, len)) return 1; - *p += len; + p += len; aligned -= len; while (aligned--) { - if (**p != '\0') + if (*p != '\0') return 1; - *p += sizeof(__u8); + p += sizeof(__u8); } } } @@ -366,151 +588,351 @@ static int check_ioam6_data(__u8 **p, struct ioam6_trace_hdr *ioam6h, return 0; } -static int check_ioam_header_and_data(int tid, struct ioam6_trace_hdr *ioam6h, - __u32 trace_type, __u16 ioam_ns) +static int check_ioam_trace(int tid, struct ioam6_trace_hdr *trace, + __u32 trace_type, __u8 trace_size, __u16 ioam_ns) { - __u8 *p; - - if (check_ioam_header(tid, ioam6h, trace_type, ioam_ns)) + if (check_header(tid, trace, trace_type, trace_size, ioam_ns)) return 1; - p = ioam6h->data + ioam6h->remlen * 4; - - switch (tid) { - case TEST_OUT_BIT0: - case TEST_OUT_BIT1: - case TEST_OUT_BIT2: - case TEST_OUT_BIT3: - case TEST_OUT_BIT4: - case TEST_OUT_BIT5: - case TEST_OUT_BIT6: - case TEST_OUT_BIT7: - case TEST_OUT_BIT8: - case TEST_OUT_BIT9: - case TEST_OUT_BIT10: - case TEST_OUT_BIT11: - case TEST_OUT_BIT22: - case TEST_OUT_FULL_SUPP_TRACE: - return check_ioam6_data(&p, ioam6h, node1); - - case TEST_IN_BIT0: - case TEST_IN_BIT1: - case TEST_IN_BIT2: - case TEST_IN_BIT3: - case TEST_IN_BIT4: - case TEST_IN_BIT5: - case TEST_IN_BIT6: - case TEST_IN_BIT7: - case TEST_IN_BIT8: - case TEST_IN_BIT9: - case TEST_IN_BIT10: - case TEST_IN_BIT11: - case TEST_IN_BIT22: - case TEST_IN_FULL_SUPP_TRACE: - { - __u32 tmp32 = node2.egr_wide; - __u16 tmp16 = node2.egr_id; - int res; - - node2.egr_id = 0xffff; - node2.egr_wide = 0xffffffff; + if (tid > __TEST_OUT_MIN && tid < __TEST_OUT_MAX) + return check_data(trace, trace_size, node1, true); - res = check_ioam6_data(&p, ioam6h, node2); - - node2.egr_id = tmp16; - node2.egr_wide = tmp32; - - return res; - } - - case TEST_FWD_FULL_SUPP_TRACE: - if (check_ioam6_data(&p, ioam6h, node3)) - return 1; - if (check_ioam6_data(&p, ioam6h, node2)) - return 1; - return check_ioam6_data(&p, ioam6h, node1); - - default: - break; - } + 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("out_undef_ns", tname)) + if (!strcmp("output_undef_ns", tname)) return TEST_OUT_UNDEF_NS; - if (!strcmp("out_no_room", tname)) + if (!strcmp("output_no_room", tname)) return TEST_OUT_NO_ROOM; - if (!strcmp("out_bit0", tname)) + if (!strcmp("output_no_room_oss", tname)) + return TEST_OUT_NO_ROOM_OSS; + if (!strcmp("output_bit0", tname)) return TEST_OUT_BIT0; - if (!strcmp("out_bit1", tname)) + if (!strcmp("output_bit1", tname)) return TEST_OUT_BIT1; - if (!strcmp("out_bit2", tname)) + if (!strcmp("output_bit2", tname)) return TEST_OUT_BIT2; - if (!strcmp("out_bit3", tname)) + if (!strcmp("output_bit3", tname)) return TEST_OUT_BIT3; - if (!strcmp("out_bit4", tname)) + if (!strcmp("output_bit4", tname)) return TEST_OUT_BIT4; - if (!strcmp("out_bit5", tname)) + if (!strcmp("output_bit5", tname)) return TEST_OUT_BIT5; - if (!strcmp("out_bit6", tname)) + if (!strcmp("output_bit6", tname)) return TEST_OUT_BIT6; - if (!strcmp("out_bit7", tname)) + if (!strcmp("output_bit7", tname)) return TEST_OUT_BIT7; - if (!strcmp("out_bit8", tname)) + if (!strcmp("output_bit8", tname)) return TEST_OUT_BIT8; - if (!strcmp("out_bit9", tname)) + if (!strcmp("output_bit9", tname)) return TEST_OUT_BIT9; - if (!strcmp("out_bit10", tname)) + if (!strcmp("output_bit10", tname)) return TEST_OUT_BIT10; - if (!strcmp("out_bit11", tname)) + if (!strcmp("output_bit11", tname)) return TEST_OUT_BIT11; - if (!strcmp("out_bit22", tname)) + if (!strcmp("output_bit22", tname)) return TEST_OUT_BIT22; - if (!strcmp("out_full_supp_trace", tname)) + 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("in_undef_ns", tname)) + if (!strcmp("input_undef_ns", tname)) return TEST_IN_UNDEF_NS; - if (!strcmp("in_no_room", tname)) + if (!strcmp("input_no_room", tname)) return TEST_IN_NO_ROOM; - if (!strcmp("in_oflag", tname)) + 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("in_bit0", tname)) + if (!strcmp("input_bit0", tname)) return TEST_IN_BIT0; - if (!strcmp("in_bit1", tname)) + if (!strcmp("input_bit1", tname)) return TEST_IN_BIT1; - if (!strcmp("in_bit2", tname)) + if (!strcmp("input_bit2", tname)) return TEST_IN_BIT2; - if (!strcmp("in_bit3", tname)) + if (!strcmp("input_bit3", tname)) return TEST_IN_BIT3; - if (!strcmp("in_bit4", tname)) + if (!strcmp("input_bit4", tname)) return TEST_IN_BIT4; - if (!strcmp("in_bit5", tname)) + if (!strcmp("input_bit5", tname)) return TEST_IN_BIT5; - if (!strcmp("in_bit6", tname)) + if (!strcmp("input_bit6", tname)) return TEST_IN_BIT6; - if (!strcmp("in_bit7", tname)) + if (!strcmp("input_bit7", tname)) return TEST_IN_BIT7; - if (!strcmp("in_bit8", tname)) + if (!strcmp("input_bit8", tname)) return TEST_IN_BIT8; - if (!strcmp("in_bit9", tname)) + if (!strcmp("input_bit9", tname)) return TEST_IN_BIT9; - if (!strcmp("in_bit10", tname)) + if (!strcmp("input_bit10", tname)) return TEST_IN_BIT10; - if (!strcmp("in_bit11", tname)) + if (!strcmp("input_bit11", tname)) return TEST_IN_BIT11; - if (!strcmp("in_bit22", tname)) + if (!strcmp("input_bit22", tname)) return TEST_IN_BIT22; - if (!strcmp("in_full_supp_trace", tname)) + 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; - if (!strcmp("fwd_full_supp_trace", tname)) - return TEST_FWD_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; @@ -555,119 +977,124 @@ static int get_u16(__u16 *val, const char *arg, int base) return 0; } -static int (*func[__TEST_MAX])(int, struct ioam6_trace_hdr *, __u32, __u16) = { - [TEST_OUT_UNDEF_NS] = check_ioam_header, - [TEST_OUT_NO_ROOM] = check_ioam_header, - [TEST_OUT_BIT0] = check_ioam_header_and_data, - [TEST_OUT_BIT1] = check_ioam_header_and_data, - [TEST_OUT_BIT2] = check_ioam_header_and_data, - [TEST_OUT_BIT3] = check_ioam_header_and_data, - [TEST_OUT_BIT4] = check_ioam_header_and_data, - [TEST_OUT_BIT5] = check_ioam_header_and_data, - [TEST_OUT_BIT6] = check_ioam_header_and_data, - [TEST_OUT_BIT7] = check_ioam_header_and_data, - [TEST_OUT_BIT8] = check_ioam_header_and_data, - [TEST_OUT_BIT9] = check_ioam_header_and_data, - [TEST_OUT_BIT10] = check_ioam_header_and_data, - [TEST_OUT_BIT11] = check_ioam_header_and_data, - [TEST_OUT_BIT22] = check_ioam_header_and_data, - [TEST_OUT_FULL_SUPP_TRACE] = check_ioam_header_and_data, - [TEST_IN_UNDEF_NS] = check_ioam_header, - [TEST_IN_NO_ROOM] = check_ioam_header, - [TEST_IN_OFLAG] = check_ioam_header, - [TEST_IN_BIT0] = check_ioam_header_and_data, - [TEST_IN_BIT1] = check_ioam_header_and_data, - [TEST_IN_BIT2] = check_ioam_header_and_data, - [TEST_IN_BIT3] = check_ioam_header_and_data, - [TEST_IN_BIT4] = check_ioam_header_and_data, - [TEST_IN_BIT5] = check_ioam_header_and_data, - [TEST_IN_BIT6] = check_ioam_header_and_data, - [TEST_IN_BIT7] = check_ioam_header_and_data, - [TEST_IN_BIT8] = check_ioam_header_and_data, - [TEST_IN_BIT9] = check_ioam_header_and_data, - [TEST_IN_BIT10] = check_ioam_header_and_data, - [TEST_IN_BIT11] = check_ioam_header_and_data, - [TEST_IN_BIT22] = check_ioam_header_and_data, - [TEST_IN_FULL_SUPP_TRACE] = check_ioam_header_and_data, - [TEST_FWD_FULL_SUPP_TRACE] = check_ioam_header_and_data, -}; +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) { - int fd, size, hoplen, tid, ret = 1, on = 1; - struct ioam6_hdr *opt; - struct cmsghdr *cmsg; - struct msghdr msg; - struct iovec iov; - __u8 buffer[512]; + __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; - __u8 *ptr; - if (argc != 5) + if (argc != 9) goto out; - tid = str2id(argv[1]); - if (tid < 0 || !func[tid]) - goto out; + testname_id = str2id(argv[2]); - if (get_u32(&tr_type, argv[2], 16) || - get_u16(&ioam_ns, argv[3], 0)) + 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; - fd = socket(PF_INET6, SOCK_RAW, - !strcmp(argv[4], "encap") ? IPPROTO_IPV6 : IPPROTO_ICMPV6); + 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; - setsockopt(fd, IPPROTO_IPV6, IPV6_RECVHOPOPTS, &on, sizeof(on)); + if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, + argv[1], strlen(argv[1]))) + goto close; - iov.iov_len = 1; - iov.iov_base = malloc(CMSG_SPACE(sizeof(buffer))); - if (!iov.iov_base) + timeout.tv_sec = 1; + timeout.tv_usec = 0; + if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, + (const char *)&timeout, sizeof(timeout))) goto close; recv: - memset(&msg, 0, sizeof(msg)); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - msg.msg_control = buffer; - msg.msg_controllen = CMSG_SPACE(sizeof(buffer)); - - size = recvmsg(fd, &msg, 0); + size = recv(fd, buffer, sizeof(buffer), 0); if (size <= 0) goto close; - for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) { - if (cmsg->cmsg_level != IPPROTO_IPV6 || - cmsg->cmsg_type != IPV6_HOPOPTS || - cmsg->cmsg_len < sizeof(struct ipv6_hopopt_hdr)) - continue; + 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; - ptr = (__u8 *)CMSG_DATA(cmsg); + /* 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; - hoplen = (ptr[1] + 1) << 3; - ptr += sizeof(struct ipv6_hopopt_hdr); + /* Check we now have the IOAM option. */ + ptr += 2; + if (ptr[0] != IPV6_TLV_IOAM) + goto close; - while (hoplen > 0) { - opt = (struct ioam6_hdr *)ptr; + /* 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; - if (opt->opt_type == IPV6_TLV_IOAM && - opt->type == IOAM6_TYPE_PREALLOC) { - ptr += sizeof(*opt); - ret = func[tid](tid, - (struct ioam6_trace_hdr *)ptr, - tr_type, ioam_ns); - goto close; - } + trace = (struct ioam6_trace_hdr *)(ptr + sizeof(*ioam6)); - ptr += opt->opt_len + 2; - hoplen -= opt->opt_len + 2; - } - } + /* 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; - goto recv; + /* Check the IOAM header and data. */ + ret = check_ioam_trace(testname_id, trace, tr_type, tr_size, ioam_ns); close: - free(iov.iov_base); close(fd); out: return ret;

[net-next] selftests: net: ioam: add tunsrc support

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