#
# Author: Justin Iurman <justin.iurman@uliege.be>
#
-# This test evaluates the IOAM insertion for IPv6 by checking the IOAM data
-# integrity on the receiver.
+# This script evaluates the IOAM insertion for IPv6 by checking the IOAM data
+# consistency directly inside packets on the receiver side. Tests are divided
+# into three categories: OUTPUT (evaluates the IOAM processing by the sender),
+# INPUT (evaluates the IOAM processing by the receiver) and GLOBAL (evaluates
+# wider use cases that do not fall into the other two categories). Both OUTPUT
+# and INPUT tests only use a two-node topology (alpha and beta), while GLOBAL
+# tests use the entire three-node topology (alpha, beta, gamma). Each test is
+# documented inside its own handler in the code below.
#
-# The topology is formed by 3 nodes: Alpha (sender), Beta (router in-between)
-# and Gamma (receiver). An IOAM domain is configured from Alpha to Gamma only,
-# which means not on the reverse path. When Gamma is the destination, Alpha
-# adds an IOAM option (Pre-allocated Trace) inside a Hop-by-hop and fills the
-# trace with its own IOAM data. Beta and Gamma also fill the trace. The IOAM
-# data integrity is checked on Gamma, by comparing with the pre-defined IOAM
-# configuration (see below).
+# An IOAM domain is configured from Alpha to Gamma but not on the reverse path.
+# When either Beta or Gamma is the destination (depending on the test category),
+# Alpha adds an IOAM option (Pre-allocated Trace) inside a Hop-by-hop.
#
-# +-------------------+ +-------------------+
-# | | | |
-# | alpha netns | | gamma netns |
-# | | | |
-# | +-------------+ | | +-------------+ |
-# | | veth0 | | | | veth0 | |
-# | | db01::2/64 | | | | db02::2/64 | |
-# | +-------------+ | | +-------------+ |
-# | . | | . |
-# +-------------------+ +-------------------+
-# . .
-# . .
-# . .
-# +----------------------------------------------------+
-# | . . |
-# | +-------------+ +-------------+ |
-# | | veth0 | | veth1 | |
-# | | db01::1/64 | ................ | db02::1/64 | |
-# | +-------------+ +-------------+ |
-# | |
-# | beta netns |
-# | |
-# +--------------------------+-------------------------+
#
+# +-------------------+ +-------------------+
+# | | | |
+# | Alpha netns | | Gamma netns |
+# | | | |
+# | +-------------+ | | +-------------+ |
+# | | veth0 | | | | veth0 | |
+# | | db01::2/64 | | | | db02::2/64 | |
+# | +-------------+ | | +-------------+ |
+# | . | | . |
+# +-------------------+ +-------------------+
+# . .
+# . .
+# . .
+# +----------------------------------------------------+
+# | . . |
+# | +-------------+ +-------------+ |
+# | | veth0 | | veth1 | |
+# | | db01::1/64 | ................ | db02::1/64 | |
+# | +-------------+ +-------------+ |
+# | |
+# | Beta netns |
+# | |
+# +----------------------------------------------------+
#
-# ~~~~~~~~~~~~~~~~~~~~~~
-# | IOAM configuration |
-# ~~~~~~~~~~~~~~~~~~~~~~
#
-# Alpha
-# +-----------------------------------------------------------+
-# | Type | Value |
-# +-----------------------------------------------------------+
-# | Node ID | 1 |
-# +-----------------------------------------------------------+
-# | Node Wide ID | 11111111 |
-# +-----------------------------------------------------------+
-# | Ingress ID | 0xffff (default value) |
-# +-----------------------------------------------------------+
-# | Ingress Wide ID | 0xffffffff (default value) |
-# +-----------------------------------------------------------+
-# | Egress ID | 101 |
-# +-----------------------------------------------------------+
-# | Egress Wide ID | 101101 |
-# +-----------------------------------------------------------+
-# | Namespace Data | 0xdeadbee0 |
-# +-----------------------------------------------------------+
-# | Namespace Wide Data | 0xcafec0caf00dc0de |
-# +-----------------------------------------------------------+
-# | Schema ID | 777 |
-# +-----------------------------------------------------------+
-# | Schema Data | something that will be 4n-aligned |
-# +-----------------------------------------------------------+
#
-# Note: When Gamma is the destination, Alpha adds an IOAM Pre-allocated Trace
-# option inside a Hop-by-hop, where 164 bytes are pre-allocated for the
-# trace, with 123 as the IOAM-Namespace and with 0xfff00200 as the trace
-# type (= all available options at this time). As a result, and based on
-# IOAM configurations here, only both Alpha and Beta should be capable of
-# inserting their IOAM data while Gamma won't have enough space and will
-# set the overflow bit.
+# =============================================================
+# | Alpha - IOAM configuration |
+# +===========================================================+
+# | Node ID | 1 |
+# +-----------------------------------------------------------+
+# | Node Wide ID | 11111111 |
+# +-----------------------------------------------------------+
+# | Ingress ID | 0xffff (default value) |
+# +-----------------------------------------------------------+
+# | Ingress Wide ID | 0xffffffff (default value) |
+# +-----------------------------------------------------------+
+# | Egress ID | 101 |
+# +-----------------------------------------------------------+
+# | Egress Wide ID | 101101 |
+# +-----------------------------------------------------------+
+# | Namespace Data | 0xdeadbee0 |
+# +-----------------------------------------------------------+
+# | Namespace Wide Data | 0xcafec0caf00dc0de |
+# +-----------------------------------------------------------+
+# | Schema ID | 777 |
+# +-----------------------------------------------------------+
+# | Schema Data | something that will be 4n-aligned |
+# +-----------------------------------------------------------+
#
-# Beta
-# +-----------------------------------------------------------+
-# | Type | Value |
-# +-----------------------------------------------------------+
-# | Node ID | 2 |
-# +-----------------------------------------------------------+
-# | Node Wide ID | 22222222 |
-# +-----------------------------------------------------------+
-# | Ingress ID | 201 |
-# +-----------------------------------------------------------+
-# | Ingress Wide ID | 201201 |
-# +-----------------------------------------------------------+
-# | Egress ID | 202 |
-# +-----------------------------------------------------------+
-# | Egress Wide ID | 202202 |
-# +-----------------------------------------------------------+
-# | Namespace Data | 0xdeadbee1 |
-# +-----------------------------------------------------------+
-# | Namespace Wide Data | 0xcafec0caf11dc0de |
-# +-----------------------------------------------------------+
-# | Schema ID | 0xffffff (= None) |
-# +-----------------------------------------------------------+
-# | Schema Data | |
-# +-----------------------------------------------------------+
#
-# Gamma
-# +-----------------------------------------------------------+
-# | Type | Value |
-# +-----------------------------------------------------------+
-# | Node ID | 3 |
-# +-----------------------------------------------------------+
-# | Node Wide ID | 33333333 |
-# +-----------------------------------------------------------+
-# | Ingress ID | 301 |
-# +-----------------------------------------------------------+
-# | Ingress Wide ID | 301301 |
-# +-----------------------------------------------------------+
-# | Egress ID | 0xffff (default value) |
-# +-----------------------------------------------------------+
-# | Egress Wide ID | 0xffffffff (default value) |
-# +-----------------------------------------------------------+
-# | Namespace Data | 0xdeadbee2 |
-# +-----------------------------------------------------------+
-# | Namespace Wide Data | 0xcafec0caf22dc0de |
-# +-----------------------------------------------------------+
-# | Schema ID | 0xffffff (= None) |
-# +-----------------------------------------------------------+
-# | Schema Data | |
-# +-----------------------------------------------------------+
-
-#===============================================================================
+# =============================================================
+# | Beta - IOAM configuration |
+# +===========================================================+
+# | Node ID | 2 |
+# +-----------------------------------------------------------+
+# | Node Wide ID | 22222222 |
+# +-----------------------------------------------------------+
+# | Ingress ID | 201 |
+# +-----------------------------------------------------------+
+# | Ingress Wide ID | 201201 |
+# +-----------------------------------------------------------+
+# | Egress ID | 202 |
+# +-----------------------------------------------------------+
+# | Egress Wide ID | 202202 |
+# +-----------------------------------------------------------+
+# | Namespace Data | 0xdeadbee1 |
+# +-----------------------------------------------------------+
+# | Namespace Wide Data | 0xcafec0caf11dc0de |
+# +-----------------------------------------------------------+
+# | Schema ID | 666 |
+# +-----------------------------------------------------------+
+# | Schema Data | Hello there -Obi |
+# +-----------------------------------------------------------+
#
-# WARNING:
-# Do NOT modify the following configuration unless you know what you're doing.
#
-IOAM_NAMESPACE=123
-IOAM_TRACE_TYPE=0xfff00200
-IOAM_PREALLOC_DATA_SIZE=164
+# =============================================================
+# | Gamma - IOAM configuration |
+# +===========================================================+
+# | Node ID | 3 |
+# +-----------------------------------------------------------+
+# | Node Wide ID | 33333333 |
+# +-----------------------------------------------------------+
+# | Ingress ID | 301 |
+# +-----------------------------------------------------------+
+# | Ingress Wide ID | 301301 |
+# +-----------------------------------------------------------+
+# | Egress ID | 0xffff (default value) |
+# +-----------------------------------------------------------+
+# | Egress Wide ID | 0xffffffff (default value) |
+# +-----------------------------------------------------------+
+# | Namespace Data | 0xdeadbee2 |
+# +-----------------------------------------------------------+
+# | Namespace Wide Data | 0xcafec0caf22dc0de |
+# +-----------------------------------------------------------+
+# | Schema ID | 0xffffff (= None) |
+# +-----------------------------------------------------------+
+# | Schema Data | |
+# +-----------------------------------------------------------+
+
+
+################################################################################
+# #
+# WARNING: Be careful if you modify the block below - it MUST be kept #
+# synchronized with configurations inside ioam6_parser.c and always #
+# reflect the same. #
+# #
+################################################################################
ALPHA=(
1 # ID
202202
0xdeadbee1
0xcafec0caf11dc0de
- 0xffffff
- ""
+ 666
+ "Hello there -Obi"
)
GAMMA=(
0xffffff
""
)
-#===============================================================================
-if [ "$(id -u)" -ne 0 ]; then
- echo "SKIP: Need root privileges"
- exit 1
-fi
+TESTS_OUTPUT="
+ out_undef_ns
+ out_no_room
+ out_bits
+ out_full_supp_trace
+"
-if [ ! -x "$(command -v ip)" ]; then
- echo "SKIP: Could not run test without ip tool"
- exit 1
-fi
+TESTS_INPUT="
+ in_undef_ns
+ in_no_room
+ in_oflag
+ in_bits
+ in_full_supp_trace
+"
-ip ioam &>/dev/null
-if [ $? = 1 ]; then
- echo "SKIP: ip tool must include IOAM"
- exit 1
-fi
+TESTS_GLOBAL="
+ fwd_full_supp_trace
+"
-if [ ! -e /proc/sys/net/ipv6/ioam6_id ]; then
- echo "SKIP: ioam6 sysctls do not exist"
- exit 1
-fi
+
+################################################################################
+# #
+# LIBRARY #
+# #
+################################################################################
+
+check_kernel_compatibility()
+{
+ ip netns add ioam-tmp-node
+ ip link add name veth0 netns ioam-tmp-node type veth \
+ peer name veth1 netns ioam-tmp-node
+
+ ip -netns ioam-tmp-node link set veth0 up
+ ip -netns ioam-tmp-node link set veth1 up
+
+ ip -netns ioam-tmp-node ioam namespace add 0 &>/dev/null
+ ns_ad=$?
+
+ ip -netns ioam-tmp-node ioam namespace show | grep -q "namespace 0"
+ ns_sh=$?
+
+ if [[ $ns_ad != 0 || $ns_sh != 0 ]]
+ then
+ echo "SKIP: kernel version probably too old, missing ioam support"
+ ip link del veth0 2>/dev/null || true
+ ip netns del ioam-tmp-node || true
+ exit 1
+ fi
+
+ ip -netns ioam-tmp-node route add db02::/64 encap ioam6 trace prealloc \
+ type 0x800000 ns 0 size 4 dev veth0 &>/dev/null
+ tr_ad=$?
+
+ ip -netns ioam-tmp-node -6 route | grep -q "encap ioam6 trace"
+ tr_sh=$?
+
+ if [[ $tr_ad != 0 || $tr_sh != 0 ]]
+ then
+ echo "SKIP: cannot attach an ioam trace to a route, did you compile" \
+ "without CONFIG_IPV6_IOAM6_LWTUNNEL?"
+ ip link del veth0 2>/dev/null || true
+ ip netns del ioam-tmp-node || true
+ exit 1
+ fi
+
+ ip link del veth0 2>/dev/null || true
+ ip netns del ioam-tmp-node || true
+}
cleanup()
{
ip netns add ioam-node-beta
ip netns add ioam-node-gamma
- ip link add name ioam-veth-alpha type veth peer name ioam-veth-betaL
- ip link add name ioam-veth-betaR type veth peer name ioam-veth-gamma
-
- ip link set ioam-veth-alpha netns ioam-node-alpha
- ip link set ioam-veth-betaL netns ioam-node-beta
- ip link set ioam-veth-betaR netns ioam-node-beta
- ip link set ioam-veth-gamma netns ioam-node-gamma
+ ip link add name ioam-veth-alpha netns ioam-node-alpha type veth \
+ peer name ioam-veth-betaL netns ioam-node-beta
+ ip link add name ioam-veth-betaR netns ioam-node-beta type veth \
+ peer name ioam-veth-gamma netns ioam-node-gamma
ip -netns ioam-node-alpha link set ioam-veth-alpha name veth0
ip -netns ioam-node-beta link set ioam-veth-betaL name veth0
ip -netns ioam-node-alpha addr add db01::2/64 dev veth0
ip -netns ioam-node-alpha link set veth0 up
ip -netns ioam-node-alpha link set lo up
- ip -netns ioam-node-alpha route add default via db01::1
+ ip -netns ioam-node-alpha route add db02::/64 via db01::1 dev veth0
+ ip -netns ioam-node-alpha route del db01::/64
+ ip -netns ioam-node-alpha route add db01::/64 dev veth0
ip -netns ioam-node-beta addr add db01::1/64 dev veth0
ip -netns ioam-node-beta addr add db02::1/64 dev veth1
ip -netns ioam-node-gamma addr add db02::2/64 dev veth0
ip -netns ioam-node-gamma link set veth0 up
ip -netns ioam-node-gamma link set lo up
- ip -netns ioam-node-gamma route add default via db02::1
+ ip -netns ioam-node-gamma route add db01::/64 via db02::1 dev veth0
# - IOAM config -
ip netns exec ioam-node-alpha sysctl -wq net.ipv6.ioam6_id=${ALPHA[0]}
ip netns exec ioam-node-alpha sysctl -wq net.ipv6.ioam6_id_wide=${ALPHA[1]}
ip netns exec ioam-node-alpha sysctl -wq net.ipv6.conf.veth0.ioam6_id=${ALPHA[4]}
ip netns exec ioam-node-alpha sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${ALPHA[5]}
- ip -netns ioam-node-alpha ioam namespace add ${IOAM_NAMESPACE} data ${ALPHA[6]} wide ${ALPHA[7]}
+ ip -netns ioam-node-alpha ioam namespace add 123 data ${ALPHA[6]} wide ${ALPHA[7]}
ip -netns ioam-node-alpha ioam schema add ${ALPHA[8]} "${ALPHA[9]}"
- ip -netns ioam-node-alpha ioam namespace set ${IOAM_NAMESPACE} schema ${ALPHA[8]}
- ip -netns ioam-node-alpha route add db02::/64 encap ioam6 trace type ${IOAM_TRACE_TYPE:0:-2} ns ${IOAM_NAMESPACE} size ${IOAM_PREALLOC_DATA_SIZE} via db01::1 dev veth0
+ ip -netns ioam-node-alpha ioam namespace set 123 schema ${ALPHA[8]}
ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.all.forwarding=1
ip netns exec ioam-node-beta sysctl -wq net.ipv6.ioam6_id=${BETA[0]}
ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${BETA[3]}
ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth1.ioam6_id=${BETA[4]}
ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth1.ioam6_id_wide=${BETA[5]}
- ip -netns ioam-node-beta ioam namespace add ${IOAM_NAMESPACE} data ${BETA[6]} wide ${BETA[7]}
+ ip -netns ioam-node-beta ioam namespace add 123 data ${BETA[6]} wide ${BETA[7]}
+ ip -netns ioam-node-beta ioam schema add ${BETA[8]} "${BETA[9]}"
+ ip -netns ioam-node-beta ioam namespace set 123 schema ${BETA[8]}
ip netns exec ioam-node-gamma sysctl -wq net.ipv6.ioam6_id=${GAMMA[0]}
ip netns exec ioam-node-gamma sysctl -wq net.ipv6.ioam6_id_wide=${GAMMA[1]}
ip netns exec ioam-node-gamma sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1
ip netns exec ioam-node-gamma sysctl -wq net.ipv6.conf.veth0.ioam6_id=${GAMMA[2]}
ip netns exec ioam-node-gamma sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${GAMMA[3]}
- ip -netns ioam-node-gamma ioam namespace add ${IOAM_NAMESPACE} data ${GAMMA[6]} wide ${GAMMA[7]}
-}
+ ip -netns ioam-node-gamma ioam namespace add 123 data ${GAMMA[6]} wide ${GAMMA[7]}
-run()
-{
- echo -n "IOAM test... "
+ sleep 1
ip netns exec ioam-node-alpha ping6 -c 5 -W 1 db02::2 &>/dev/null
- if [ $? != 0 ]; then
- echo "FAILED"
+ if [ $? != 0 ]
+ then
+ echo "Setup FAILED"
cleanup &>/dev/null
exit 0
fi
+}
- ip netns exec ioam-node-gamma ./ioam6_parser veth0 2 ${IOAM_NAMESPACE} ${IOAM_TRACE_TYPE} 64 ${ALPHA[0]} ${ALPHA[1]} ${ALPHA[2]} ${ALPHA[3]} ${ALPHA[4]} ${ALPHA[5]} ${ALPHA[6]} ${ALPHA[7]} ${ALPHA[8]} "${ALPHA[9]}" 63 ${BETA[0]} ${BETA[1]} ${BETA[2]} ${BETA[3]} ${BETA[4]} ${BETA[5]} ${BETA[6]} ${BETA[7]} ${BETA[8]} &
+log_test_passed()
+{
+ local desc=$1
+ printf "TEST: %-60s [ OK ]\n" "${desc}"
+}
+log_test_failed()
+{
+ local desc=$1
+ printf "TEST: %-60s [FAIL]\n" "${desc}"
+}
+
+run_test()
+{
+ local name=$1
+ local desc=$2
+ local node_src=$3
+ local node_dst=$4
+ local ip6_src=$5
+ local ip6_dst=$6
+ local if_dst=$7
+ local trace_type=$8
+ local ioam_ns=$9
+
+ ip netns exec $node_dst ./ioam6_parser $if_dst $name $ip6_src $ip6_dst \
+ $trace_type $ioam_ns &
local spid=$!
sleep 0.1
- ip netns exec ioam-node-alpha ping6 -c 5 -W 1 db02::2 &>/dev/null
+ ip netns exec $node_src ping6 -t 64 -c 1 -W 1 $ip6_dst &>/dev/null
+ if [ $? != 0 ]
+ then
+ log_test_failed "${desc}"
+ kill -2 $spid &>/dev/null
+ else
+ wait $spid
+ [ $? = 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+ fi
+}
+
+run()
+{
+ echo
+ echo "OUTPUT tests"
+ printf "%0.s-" {1..74}
+ echo
+
+ # set OUTPUT settings
+ ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=0
+
+ for t in $TESTS_OUTPUT
+ do
+ $t
+ done
+
+ # clean OUTPUT settings
+ ip netns exec ioam-node-beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1
+ ip -netns ioam-node-alpha route change db01::/64 dev veth0
+
- wait $spid
- [ $? = 0 ] && echo "PASSED" || echo "FAILED"
+ echo
+ echo "INPUT tests"
+ printf "%0.s-" {1..74}
+ echo
+
+ # set INPUT settings
+ ip -netns ioam-node-alpha ioam namespace del 123
+
+ for t in $TESTS_INPUT
+ do
+ $t
+ done
+
+ # clean INPUT settings
+ ip -netns ioam-node-alpha ioam namespace add 123 \
+ data ${ALPHA[6]} wide ${ALPHA[7]}
+ ip -netns ioam-node-alpha ioam namespace set 123 schema ${ALPHA[8]}
+ ip -netns ioam-node-alpha route change db01::/64 dev veth0
+
+
+ echo
+ echo "GLOBAL tests"
+ printf "%0.s-" {1..74}
+ echo
+
+ for t in $TESTS_GLOBAL
+ do
+ $t
+ done
}
+bit2type=(
+ 0x800000 0x400000 0x200000 0x100000 0x080000 0x040000 0x020000 0x010000
+ 0x008000 0x004000 0x002000 0x001000 0x000800 0x000400 0x000200 0x000100
+ 0x000080 0x000040 0x000020 0x000010 0x000008 0x000004 0x000002
+)
+bit2size=( 4 4 4 4 4 4 4 4 8 8 8 4 4 4 4 4 4 4 4 4 4 4 4 )
+
+
+################################################################################
+# #
+# OUTPUT tests #
+# #
+# Two nodes (sender/receiver), IOAM disabled on ingress for the receiver. #
+################################################################################
+
+out_undef_ns()
+{
+ ##############################################################################
+ # Make sure that the encap node won't fill the trace if the chosen IOAM #
+ # namespace is not configured locally. #
+ ##############################################################################
+ local desc="Unknown IOAM namespace"
+
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
+ type 0x800000 ns 0 size 4 dev veth0
+
+ run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
+ db01::1 veth0 0x800000 0
+}
+
+out_no_room()
+{
+ ##############################################################################
+ # Make sure that the encap node won't fill the trace and will set the #
+ # Overflow flag since there is no room enough for its data. #
+ ##############################################################################
+ local desc="Missing trace room"
+
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
+ type 0xc00000 ns 123 size 4 dev veth0
+
+ run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
+ db01::1 veth0 0xc00000 123
+}
+
+out_bits()
+{
+ ##############################################################################
+ # Make sure that, for each trace type bit, the encap node will either: #
+ # (i) fill the trace with its data when it is a supported bit #
+ # (ii) not fill the trace with its data when it is an unsupported bit #
+ ##############################################################################
+ local desc="Trace type with bit <n> only"
+
+ local tmp=${bit2size[22]}
+ bit2size[22]=$(( $tmp + ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) ))
+
+ for i in {0..22}
+ do
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace \
+ prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} dev veth0
+
+ run_test "out_bit$i" "${desc/<n>/$i}" ioam-node-alpha ioam-node-beta \
+ db01::2 db01::1 veth0 ${bit2type[$i]} 123
+ done
+
+ bit2size[22]=$tmp
+}
+
+out_full_supp_trace()
+{
+ ##############################################################################
+ # Make sure that the encap node will correctly fill a full trace. Be careful,#
+ # "full trace" here does NOT mean all bits (only supported ones). #
+ ##############################################################################
+ local desc="Full supported trace"
+
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
+ type 0xfff002 ns 123 size 100 dev veth0
+
+ run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
+ db01::1 veth0 0xfff002 123
+}
+
+
+################################################################################
+# #
+# INPUT tests #
+# #
+# Two nodes (sender/receiver), the sender MUST NOT fill the trace upon #
+# insertion -> the IOAM namespace configured on the sender is removed #
+# and is used in the inserted trace to force the sender not to fill it. #
+################################################################################
+
+in_undef_ns()
+{
+ ##############################################################################
+ # Make sure that the receiving node won't fill the trace if the related IOAM #
+ # namespace is not configured locally. #
+ ##############################################################################
+ local desc="Unknown IOAM namespace"
+
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
+ type 0x800000 ns 0 size 4 dev veth0
+
+ run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
+ db01::1 veth0 0x800000 0
+}
+
+in_no_room()
+{
+ ##############################################################################
+ # Make sure that the receiving node won't fill the trace and will set the #
+ # Overflow flag if there is no room enough for its data. #
+ ##############################################################################
+ local desc="Missing trace room"
+
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
+ type 0xc00000 ns 123 size 4 dev veth0
+
+ run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
+ db01::1 veth0 0xc00000 123
+}
+
+in_bits()
+{
+ ##############################################################################
+ # Make sure that, for each trace type bit, the receiving node will either: #
+ # (i) fill the trace with its data when it is a supported bit #
+ # (ii) not fill the trace with its data when it is an unsupported bit #
+ ##############################################################################
+ local desc="Trace type with bit <n> only"
+
+ local tmp=${bit2size[22]}
+ bit2size[22]=$(( $tmp + ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) ))
+
+ for i in {0..22}
+ do
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace \
+ prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} dev veth0
+
+ run_test "in_bit$i" "${desc/<n>/$i}" ioam-node-alpha ioam-node-beta \
+ db01::2 db01::1 veth0 ${bit2type[$i]} 123
+ done
+
+ bit2size[22]=$tmp
+}
+
+in_oflag()
+{
+ ##############################################################################
+ # Make sure that the receiving node won't fill the trace since the Overflow #
+ # flag is set. #
+ ##############################################################################
+ local desc="Overflow flag is set"
+
+ # Exception:
+ # Here, we need the sender to set the Overflow flag. For that, we will add
+ # back the IOAM namespace that was previously configured on the sender.
+ ip -netns ioam-node-alpha ioam namespace add 123
+
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
+ type 0xc00000 ns 123 size 4 dev veth0
+
+ run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
+ db01::1 veth0 0xc00000 123
+
+ # And we clean the exception for this test to get things back to normal for
+ # other INPUT tests
+ ip -netns ioam-node-alpha ioam namespace del 123
+}
+
+in_full_supp_trace()
+{
+ ##############################################################################
+ # Make sure that the receiving node will correctly fill a full trace. Be #
+ # careful, "full trace" here does NOT mean all bits (only supported ones). #
+ ##############################################################################
+ local desc="Full supported trace"
+
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
+ type 0xfff002 ns 123 size 80 dev veth0
+
+ run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
+ db01::1 veth0 0xfff002 123
+}
+
+
+################################################################################
+# #
+# GLOBAL tests #
+# #
+# Three nodes (sender/router/receiver), IOAM fully enabled on every node. #
+################################################################################
+
+fwd_full_supp_trace()
+{
+ ##############################################################################
+ # Make sure that all three nodes correctly filled the full supported trace #
+ # by checking that the trace data is consistent with the predefined config. #
+ ##############################################################################
+ local desc="Forward - Full supported trace"
+
+ ip -netns ioam-node-alpha route change db02::/64 encap ioam6 trace prealloc \
+ type 0xfff002 ns 123 size 244 via db01::1 dev veth0
+
+ run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-gamma db01::2 \
+ db02::2 veth0 0xfff002 123
+}
+
+
+################################################################################
+# #
+# MAIN #
+# #
+################################################################################
+
+if [ "$(id -u)" -ne 0 ]
+then
+ echo "SKIP: Need root privileges"
+ exit 1
+fi
+
+if [ ! -x "$(command -v ip)" ]
+then
+ echo "SKIP: Could not run test without ip tool"
+ exit 1
+fi
+
+ip ioam &>/dev/null
+if [ $? = 1 ]
+then
+ echo "SKIP: iproute2 too old, missing ioam command"
+ exit 1
+fi
+
+check_kernel_compatibility
+
cleanup &>/dev/null
setup
run
/*
* Author: Justin Iurman (justin.iurman@uliege.be)
*
- * IOAM parser for IPv6, see ioam6.sh for details.
+ * IOAM tester for IPv6, see ioam6.sh for details on each test case.
*/
-#include <asm/byteorder.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <limits.h>
#include <linux/const.h>
#include <linux/if_ether.h>
#include <linux/ioam6.h>
#include <linux/ipv6.h>
-#include <sys/socket.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
-struct node_args {
+struct ioam_config {
__u32 id;
__u64 wide;
__u16 ingr_id;
__u32 ns_data;
__u64 ns_wide;
__u32 sc_id;
- __u8 hop_limit;
- __u8 *sc_data; /* NULL when sc_id = 0xffffff (default empty value) */
+ __u8 hlim;
+ char *sc_data;
};
-/* expected args per node, in that order */
-enum {
- NODE_ARG_HOP_LIMIT,
- NODE_ARG_ID,
- NODE_ARG_WIDE,
- NODE_ARG_INGR_ID,
- NODE_ARG_INGR_WIDE,
- NODE_ARG_EGR_ID,
- NODE_ARG_EGR_WIDE,
- NODE_ARG_NS_DATA,
- NODE_ARG_NS_WIDE,
- NODE_ARG_SC_ID,
- __NODE_ARG_MAX,
+/*
+ * Be careful if you modify structs below - everything MUST be kept synchronized
+ * with configurations inside ioam6.sh and always reflect the same.
+ */
+
+static struct ioam_config node1 = {
+ .id = 1,
+ .wide = 11111111,
+ .ingr_id = 0xffff, /* default value */
+ .egr_id = 101,
+ .ingr_wide = 0xffffffff, /* default value */
+ .egr_wide = 101101,
+ .ns_data = 0xdeadbee0,
+ .ns_wide = 0xcafec0caf00dc0de,
+ .sc_id = 777,
+ .sc_data = "something that will be 4n-aligned",
+ .hlim = 64,
};
-#define NODE_ARGS_SIZE __NODE_ARG_MAX
+static struct ioam_config node2 = {
+ .id = 2,
+ .wide = 22222222,
+ .ingr_id = 201,
+ .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,
+};
-struct args {
- __u16 ns_id;
- __u32 trace_type;
- __u8 n_node;
- __u8 *ifname;
- struct node_args node[0];
+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,
+ .sc_id = 0xffffff, /* default value */
+ .sc_data = NULL,
+ .hlim = 62,
};
-/* expected args, in that order */
enum {
- ARG_IFNAME,
- ARG_N_NODE,
- ARG_NS_ID,
- ARG_TRACE_TYPE,
- __ARG_MAX,
+ /**********
+ * OUTPUT *
+ **********/
+ TEST_OUT_UNDEF_NS,
+ TEST_OUT_NO_ROOM,
+ TEST_OUT_BIT0,
+ TEST_OUT_BIT1,
+ TEST_OUT_BIT2,
+ TEST_OUT_BIT3,
+ TEST_OUT_BIT4,
+ TEST_OUT_BIT5,
+ TEST_OUT_BIT6,
+ TEST_OUT_BIT7,
+ TEST_OUT_BIT8,
+ TEST_OUT_BIT9,
+ TEST_OUT_BIT10,
+ TEST_OUT_BIT11,
+ TEST_OUT_BIT12,
+ TEST_OUT_BIT13,
+ TEST_OUT_BIT14,
+ TEST_OUT_BIT15,
+ TEST_OUT_BIT16,
+ TEST_OUT_BIT17,
+ TEST_OUT_BIT18,
+ TEST_OUT_BIT19,
+ TEST_OUT_BIT20,
+ TEST_OUT_BIT21,
+ TEST_OUT_BIT22,
+ TEST_OUT_FULL_SUPP_TRACE,
+
+ /*********
+ * INPUT *
+ *********/
+ TEST_IN_UNDEF_NS,
+ TEST_IN_NO_ROOM,
+ TEST_IN_OFLAG,
+ TEST_IN_BIT0,
+ TEST_IN_BIT1,
+ TEST_IN_BIT2,
+ TEST_IN_BIT3,
+ TEST_IN_BIT4,
+ TEST_IN_BIT5,
+ TEST_IN_BIT6,
+ TEST_IN_BIT7,
+ TEST_IN_BIT8,
+ TEST_IN_BIT9,
+ TEST_IN_BIT10,
+ TEST_IN_BIT11,
+ TEST_IN_BIT12,
+ TEST_IN_BIT13,
+ TEST_IN_BIT14,
+ TEST_IN_BIT15,
+ TEST_IN_BIT16,
+ TEST_IN_BIT17,
+ TEST_IN_BIT18,
+ TEST_IN_BIT19,
+ TEST_IN_BIT20,
+ TEST_IN_BIT21,
+ TEST_IN_BIT22,
+ TEST_IN_FULL_SUPP_TRACE,
+
+ /**********
+ * GLOBAL *
+ **********/
+ TEST_FWD_FULL_SUPP_TRACE,
+
+ __TEST_MAX,
};
-#define ARGS_SIZE __ARG_MAX
+static int check_ioam_header(int tid, struct ioam6_trace_hdr *ioam6h,
+ __u32 trace_type, __u16 ioam_ns)
+{
+ if (__be16_to_cpu(ioam6h->namespace_id) != ioam_ns ||
+ __be32_to_cpu(ioam6h->type_be32) != (trace_type << 8))
+ return 1;
-int check_ioam6_node_data(__u8 **p, struct ioam6_trace_hdr *trace, __u8 hlim,
- __u32 id, __u64 wide, __u16 ingr_id, __u32 ingr_wide,
- __u16 egr_id, __u32 egr_wide, __u32 ns_data,
- __u64 ns_wide, __u32 sc_id, __u8 *sc_data)
+ switch (tid) {
+ case TEST_OUT_UNDEF_NS:
+ case TEST_IN_UNDEF_NS:
+ return ioam6h->overflow ||
+ ioam6h->nodelen != 1 ||
+ ioam6h->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;
+
+ case TEST_OUT_BIT0:
+ case TEST_IN_BIT0:
+ case TEST_OUT_BIT1:
+ case TEST_IN_BIT1:
+ case TEST_OUT_BIT2:
+ case TEST_IN_BIT2:
+ case TEST_OUT_BIT3:
+ case TEST_IN_BIT3:
+ case TEST_OUT_BIT4:
+ case TEST_IN_BIT4:
+ case TEST_OUT_BIT5:
+ case TEST_IN_BIT5:
+ case TEST_OUT_BIT6:
+ case TEST_IN_BIT6:
+ case TEST_OUT_BIT7:
+ case TEST_IN_BIT7:
+ case TEST_OUT_BIT11:
+ case TEST_IN_BIT11:
+ return ioam6h->overflow ||
+ ioam6h->nodelen != 1 ||
+ ioam6h->remlen;
+
+ case TEST_OUT_BIT8:
+ case TEST_IN_BIT8:
+ case TEST_OUT_BIT9:
+ case TEST_IN_BIT9:
+ case TEST_OUT_BIT10:
+ case TEST_IN_BIT10:
+ return ioam6h->overflow ||
+ ioam6h->nodelen != 2 ||
+ ioam6h->remlen;
+
+ case TEST_OUT_BIT12:
+ case TEST_IN_BIT12:
+ case TEST_OUT_BIT13:
+ case TEST_IN_BIT13:
+ case TEST_OUT_BIT14:
+ case TEST_IN_BIT14:
+ case TEST_OUT_BIT15:
+ case TEST_IN_BIT15:
+ case TEST_OUT_BIT16:
+ case TEST_IN_BIT16:
+ case TEST_OUT_BIT17:
+ case TEST_IN_BIT17:
+ case TEST_OUT_BIT18:
+ case TEST_IN_BIT18:
+ case TEST_OUT_BIT19:
+ case TEST_IN_BIT19:
+ case TEST_OUT_BIT20:
+ case TEST_IN_BIT20:
+ case TEST_OUT_BIT21:
+ case TEST_IN_BIT21:
+ return ioam6h->overflow ||
+ ioam6h->nodelen ||
+ ioam6h->remlen != 1;
+
+ case TEST_OUT_BIT22:
+ case TEST_IN_BIT22:
+ return ioam6h->overflow ||
+ ioam6h->nodelen ||
+ ioam6h->remlen;
+
+ 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;
+
+ default:
+ break;
+ }
+
+ return 1;
+}
+
+static int check_ioam6_data(__u8 **p, struct ioam6_trace_hdr *ioam6h,
+ const struct ioam_config cnf)
{
+ unsigned int len;
+ __u8 aligned;
__u64 raw64;
__u32 raw32;
- __u8 sc_len;
- if (trace->type.bit0) {
+ if (ioam6h->type.bit0) {
raw32 = __be32_to_cpu(*((__u32 *)*p));
- if (hlim != (raw32 >> 24) || id != (raw32 & 0xffffff))
+ if (cnf.hlim != (raw32 >> 24) || cnf.id != (raw32 & 0xffffff))
return 1;
*p += sizeof(__u32);
}
- if (trace->type.bit1) {
+ if (ioam6h->type.bit1) {
raw32 = __be32_to_cpu(*((__u32 *)*p));
- if (ingr_id != (raw32 >> 16) || egr_id != (raw32 & 0xffff))
+ if (cnf.ingr_id != (raw32 >> 16) ||
+ cnf.egr_id != (raw32 & 0xffff))
return 1;
*p += sizeof(__u32);
}
- if (trace->type.bit2)
+ if (ioam6h->type.bit2)
*p += sizeof(__u32);
- if (trace->type.bit3)
+ if (ioam6h->type.bit3)
*p += sizeof(__u32);
- if (trace->type.bit4) {
+ if (ioam6h->type.bit4) {
if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff)
return 1;
*p += sizeof(__u32);
}
- if (trace->type.bit5) {
- if (__be32_to_cpu(*((__u32 *)*p)) != ns_data)
+ if (ioam6h->type.bit5) {
+ if (__be32_to_cpu(*((__u32 *)*p)) != cnf.ns_data)
return 1;
*p += sizeof(__u32);
}
- if (trace->type.bit6) {
+ if (ioam6h->type.bit6) {
if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff)
return 1;
*p += sizeof(__u32);
}
- if (trace->type.bit7) {
+ if (ioam6h->type.bit7) {
if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff)
return 1;
*p += sizeof(__u32);
}
- if (trace->type.bit8) {
+ if (ioam6h->type.bit8) {
raw64 = __be64_to_cpu(*((__u64 *)*p));
- if (hlim != (raw64 >> 56) || wide != (raw64 & 0xffffffffffffff))
+ if (cnf.hlim != (raw64 >> 56) ||
+ cnf.wide != (raw64 & 0xffffffffffffff))
return 1;
*p += sizeof(__u64);
}
- if (trace->type.bit9) {
- if (__be32_to_cpu(*((__u32 *)*p)) != ingr_wide)
+ if (ioam6h->type.bit9) {
+ if (__be32_to_cpu(*((__u32 *)*p)) != cnf.ingr_wide)
return 1;
*p += sizeof(__u32);
- if (__be32_to_cpu(*((__u32 *)*p)) != egr_wide)
+ if (__be32_to_cpu(*((__u32 *)*p)) != cnf.egr_wide)
return 1;
*p += sizeof(__u32);
}
- if (trace->type.bit10) {
- if (__be64_to_cpu(*((__u64 *)*p)) != ns_wide)
+ if (ioam6h->type.bit10) {
+ if (__be64_to_cpu(*((__u64 *)*p)) != cnf.ns_wide)
return 1;
*p += sizeof(__u64);
}
- if (trace->type.bit11) {
+ if (ioam6h->type.bit11) {
if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff)
return 1;
*p += sizeof(__u32);
}
- if (trace->type.bit22) {
+ if (ioam6h->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));
- sc_len = sc_data ? __ALIGN_KERNEL(strlen(sc_data), 4) : 0;
- if (sc_len != (raw32 >> 24) * 4 || sc_id != (raw32 & 0xffffff))
+ if (aligned != (raw32 >> 24) * 4 ||
+ cnf.sc_id != (raw32 & 0xffffff))
return 1;
*p += sizeof(__u32);
- if (sc_data) {
- if (strncmp(*p, sc_data, strlen(sc_data)))
+ if (cnf.sc_data) {
+ if (strncmp((char *)*p, cnf.sc_data, len))
return 1;
- *p += strlen(sc_data);
- sc_len -= strlen(sc_data);
+ *p += len;
+ aligned -= len;
- while (sc_len--) {
+ while (aligned--) {
if (**p != '\0')
return 1;
*p += sizeof(__u8);
return 0;
}
-int check_ioam6_trace(struct ioam6_trace_hdr *trace, struct args *args)
+static int check_ioam_header_and_data(int tid, struct ioam6_trace_hdr *ioam6h,
+ __u32 trace_type, __u16 ioam_ns)
{
__u8 *p;
- int i;
- if (__be16_to_cpu(trace->namespace_id) != args->ns_id ||
- __be32_to_cpu(trace->type_be32) != args->trace_type)
+ if (check_ioam_header(tid, ioam6h, trace_type, ioam_ns))
return 1;
- p = trace->data + trace->remlen * 4;
-
- for (i = args->n_node - 1; i >= 0; i--) {
- if (check_ioam6_node_data(&p, trace,
- args->node[i].hop_limit,
- args->node[i].id,
- args->node[i].wide,
- args->node[i].ingr_id,
- args->node[i].ingr_wide,
- args->node[i].egr_id,
- args->node[i].egr_wide,
- args->node[i].ns_data,
- args->node[i].ns_wide,
- args->node[i].sc_id,
- args->node[i].sc_data))
- 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;
+
+ res = check_ioam6_data(&p, ioam6h, node2);
+
+ node2.egr_id = tmp16;
+ node2.egr_wide = tmp32;
+
+ return res;
}
- return 0;
-}
-
-int parse_node_args(int *argcp, char ***argvp, struct node_args *node)
-{
- char **argv = *argvp;
-
- if (*argcp < NODE_ARGS_SIZE)
- return 1;
-
- node->hop_limit = strtoul(argv[NODE_ARG_HOP_LIMIT], NULL, 10);
- if (!node->hop_limit) {
- node->hop_limit = strtoul(argv[NODE_ARG_HOP_LIMIT], NULL, 16);
- if (!node->hop_limit)
- return 1;
- }
-
- node->id = strtoul(argv[NODE_ARG_ID], NULL, 10);
- if (!node->id) {
- node->id = strtoul(argv[NODE_ARG_ID], NULL, 16);
- if (!node->id)
- return 1;
- }
-
- node->wide = strtoull(argv[NODE_ARG_WIDE], NULL, 10);
- if (!node->wide) {
- node->wide = strtoull(argv[NODE_ARG_WIDE], NULL, 16);
- if (!node->wide)
- return 1;
- }
-
- node->ingr_id = strtoul(argv[NODE_ARG_INGR_ID], NULL, 10);
- if (!node->ingr_id) {
- node->ingr_id = strtoul(argv[NODE_ARG_INGR_ID], NULL, 16);
- if (!node->ingr_id)
+ case TEST_FWD_FULL_SUPP_TRACE:
+ if (check_ioam6_data(&p, ioam6h, node3))
return 1;
- }
-
- node->ingr_wide = strtoul(argv[NODE_ARG_INGR_WIDE], NULL, 10);
- if (!node->ingr_wide) {
- node->ingr_wide = strtoul(argv[NODE_ARG_INGR_WIDE], NULL, 16);
- if (!node->ingr_wide)
+ if (check_ioam6_data(&p, ioam6h, node2))
return 1;
- }
+ return check_ioam6_data(&p, ioam6h, node1);
- node->egr_id = strtoul(argv[NODE_ARG_EGR_ID], NULL, 10);
- if (!node->egr_id) {
- node->egr_id = strtoul(argv[NODE_ARG_EGR_ID], NULL, 16);
- if (!node->egr_id)
- return 1;
+ default:
+ break;
}
- node->egr_wide = strtoul(argv[NODE_ARG_EGR_WIDE], NULL, 10);
- if (!node->egr_wide) {
- node->egr_wide = strtoul(argv[NODE_ARG_EGR_WIDE], NULL, 16);
- if (!node->egr_wide)
- return 1;
- }
+ return 1;
+}
- node->ns_data = strtoul(argv[NODE_ARG_NS_DATA], NULL, 16);
- if (!node->ns_data)
- return 1;
+static int str2id(const char *tname)
+{
+ if (!strcmp("out_undef_ns", tname))
+ return TEST_OUT_UNDEF_NS;
+ if (!strcmp("out_no_room", tname))
+ return TEST_OUT_NO_ROOM;
+ if (!strcmp("out_bit0", tname))
+ return TEST_OUT_BIT0;
+ if (!strcmp("out_bit1", tname))
+ return TEST_OUT_BIT1;
+ if (!strcmp("out_bit2", tname))
+ return TEST_OUT_BIT2;
+ if (!strcmp("out_bit3", tname))
+ return TEST_OUT_BIT3;
+ if (!strcmp("out_bit4", tname))
+ return TEST_OUT_BIT4;
+ if (!strcmp("out_bit5", tname))
+ return TEST_OUT_BIT5;
+ if (!strcmp("out_bit6", tname))
+ return TEST_OUT_BIT6;
+ if (!strcmp("out_bit7", tname))
+ return TEST_OUT_BIT7;
+ if (!strcmp("out_bit8", tname))
+ return TEST_OUT_BIT8;
+ if (!strcmp("out_bit9", tname))
+ return TEST_OUT_BIT9;
+ if (!strcmp("out_bit10", tname))
+ return TEST_OUT_BIT10;
+ if (!strcmp("out_bit11", tname))
+ return TEST_OUT_BIT11;
+ if (!strcmp("out_bit12", tname))
+ return TEST_OUT_BIT12;
+ if (!strcmp("out_bit13", tname))
+ return TEST_OUT_BIT13;
+ if (!strcmp("out_bit14", tname))
+ return TEST_OUT_BIT14;
+ if (!strcmp("out_bit15", tname))
+ return TEST_OUT_BIT15;
+ if (!strcmp("out_bit16", tname))
+ return TEST_OUT_BIT16;
+ if (!strcmp("out_bit17", tname))
+ return TEST_OUT_BIT17;
+ if (!strcmp("out_bit18", tname))
+ return TEST_OUT_BIT18;
+ if (!strcmp("out_bit19", tname))
+ return TEST_OUT_BIT19;
+ if (!strcmp("out_bit20", tname))
+ return TEST_OUT_BIT20;
+ if (!strcmp("out_bit21", tname))
+ return TEST_OUT_BIT21;
+ if (!strcmp("out_bit22", tname))
+ return TEST_OUT_BIT22;
+ if (!strcmp("out_full_supp_trace", tname))
+ return TEST_OUT_FULL_SUPP_TRACE;
+ if (!strcmp("in_undef_ns", tname))
+ return TEST_IN_UNDEF_NS;
+ if (!strcmp("in_no_room", tname))
+ return TEST_IN_NO_ROOM;
+ if (!strcmp("in_oflag", tname))
+ return TEST_IN_OFLAG;
+ if (!strcmp("in_bit0", tname))
+ return TEST_IN_BIT0;
+ if (!strcmp("in_bit1", tname))
+ return TEST_IN_BIT1;
+ if (!strcmp("in_bit2", tname))
+ return TEST_IN_BIT2;
+ if (!strcmp("in_bit3", tname))
+ return TEST_IN_BIT3;
+ if (!strcmp("in_bit4", tname))
+ return TEST_IN_BIT4;
+ if (!strcmp("in_bit5", tname))
+ return TEST_IN_BIT5;
+ if (!strcmp("in_bit6", tname))
+ return TEST_IN_BIT6;
+ if (!strcmp("in_bit7", tname))
+ return TEST_IN_BIT7;
+ if (!strcmp("in_bit8", tname))
+ return TEST_IN_BIT8;
+ if (!strcmp("in_bit9", tname))
+ return TEST_IN_BIT9;
+ if (!strcmp("in_bit10", tname))
+ return TEST_IN_BIT10;
+ if (!strcmp("in_bit11", tname))
+ return TEST_IN_BIT11;
+ if (!strcmp("in_bit12", tname))
+ return TEST_IN_BIT12;
+ if (!strcmp("in_bit13", tname))
+ return TEST_IN_BIT13;
+ if (!strcmp("in_bit14", tname))
+ return TEST_IN_BIT14;
+ if (!strcmp("in_bit15", tname))
+ return TEST_IN_BIT15;
+ if (!strcmp("in_bit16", tname))
+ return TEST_IN_BIT16;
+ if (!strcmp("in_bit17", tname))
+ return TEST_IN_BIT17;
+ if (!strcmp("in_bit18", tname))
+ return TEST_IN_BIT18;
+ if (!strcmp("in_bit19", tname))
+ return TEST_IN_BIT19;
+ if (!strcmp("in_bit20", tname))
+ return TEST_IN_BIT20;
+ if (!strcmp("in_bit21", tname))
+ return TEST_IN_BIT21;
+ if (!strcmp("in_bit22", tname))
+ return TEST_IN_BIT22;
+ if (!strcmp("in_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;
+}
- node->ns_wide = strtoull(argv[NODE_ARG_NS_WIDE], NULL, 16);
- if (!node->ns_wide)
- 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;
+}
- node->sc_id = strtoul(argv[NODE_ARG_SC_ID], NULL, 10);
- if (!node->sc_id) {
- node->sc_id = strtoul(argv[NODE_ARG_SC_ID], NULL, 16);
- if (!node->sc_id)
- return 1;
- }
+static int get_u32(__u32 *val, const char *arg, int base)
+{
+ unsigned long res;
+ char *ptr;
- *argcp -= NODE_ARGS_SIZE;
- *argvp += NODE_ARGS_SIZE;
+ if (!arg || !*arg)
+ return -1;
+ res = strtoul(arg, &ptr, base);
- if (node->sc_id != 0xffffff) {
- if (!*argcp)
- return 1;
+ if (!ptr || ptr == arg || *ptr)
+ return -1;
- node->sc_data = argv[NODE_ARG_SC_ID + 1];
+ if (res == ULONG_MAX && errno == ERANGE)
+ return -1;
- *argcp -= 1;
- *argvp += 1;
- }
+ if (res > 0xFFFFFFFFUL)
+ return -1;
+ *val = res;
return 0;
}
-struct args *parse_args(int argc, char **argv)
+static int get_u16(__u16 *val, const char *arg, int base)
{
- struct args *args;
- int n_node, i;
+ unsigned long res;
+ char *ptr;
- if (argc < ARGS_SIZE)
- goto out;
-
- n_node = strtoul(argv[ARG_N_NODE], NULL, 10);
- if (!n_node || n_node > 10)
- goto out;
-
- args = calloc(1, sizeof(*args) + n_node * sizeof(struct node_args));
- if (!args)
- goto out;
+ if (!arg || !*arg)
+ return -1;
+ res = strtoul(arg, &ptr, base);
- args->ns_id = strtoul(argv[ARG_NS_ID], NULL, 10);
- if (!args->ns_id)
- goto free;
+ if (!ptr || ptr == arg || *ptr)
+ return -1;
- args->trace_type = strtoul(argv[ARG_TRACE_TYPE], NULL, 16);
- if (!args->trace_type)
- goto free;
-
- args->n_node = n_node;
- args->ifname = argv[ARG_IFNAME];
-
- argv += ARGS_SIZE;
- argc -= ARGS_SIZE;
-
- for (i = 0; i < n_node; i++) {
- if (parse_node_args(&argc, &argv, &args->node[i]))
- goto free;
- }
+ if (res == ULONG_MAX && errno == ERANGE)
+ return -1;
- if (argc)
- goto free;
+ if (res > 0xFFFFUL)
+ return -1;
- return args;
-free:
- free(args);
-out:
- return NULL;
+ *val = res;
+ 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_BIT12] = check_ioam_header,
+ [TEST_OUT_BIT13] = check_ioam_header,
+ [TEST_OUT_BIT14] = check_ioam_header,
+ [TEST_OUT_BIT15] = check_ioam_header,
+ [TEST_OUT_BIT16] = check_ioam_header,
+ [TEST_OUT_BIT17] = check_ioam_header,
+ [TEST_OUT_BIT18] = check_ioam_header,
+ [TEST_OUT_BIT19] = check_ioam_header,
+ [TEST_OUT_BIT20] = check_ioam_header,
+ [TEST_OUT_BIT21] = check_ioam_header,
+ [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_BIT12] = check_ioam_header,
+ [TEST_IN_BIT13] = check_ioam_header,
+ [TEST_IN_BIT14] = check_ioam_header,
+ [TEST_IN_BIT15] = check_ioam_header,
+ [TEST_IN_BIT16] = check_ioam_header,
+ [TEST_IN_BIT17] = check_ioam_header,
+ [TEST_IN_BIT18] = check_ioam_header,
+ [TEST_IN_BIT19] = check_ioam_header,
+ [TEST_IN_BIT20] = check_ioam_header,
+ [TEST_IN_BIT21] = check_ioam_header,
+ [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,
+};
+
int main(int argc, char **argv)
{
- int ret, fd, pkts, size, hoplen, found;
- struct ioam6_trace_hdr *ioam6h;
+ int fd, size, hoplen, tid, ret = 1;
+ struct in6_addr src, dst;
struct ioam6_hdr *opt;
struct ipv6hdr *ip6h;
__u8 buffer[400], *p;
- struct args *args;
+ __u16 ioam_ns;
+ __u32 tr_type;
- args = parse_args(argc - 1, argv + 1);
- if (!args) {
- ret = 1;
+ if (argc != 7)
+ goto out;
+
+ tid = str2id(argv[2]);
+ if (tid < 0 || !func[tid])
+ goto out;
+
+ if (inet_pton(AF_INET6, argv[3], &src) != 1 ||
+ inet_pton(AF_INET6, argv[4], &dst) != 1)
+ goto out;
+
+ if (get_u32(&tr_type, argv[5], 16) ||
+ get_u16(&ioam_ns, argv[6], 0))
goto out;
- }
fd = socket(AF_PACKET, SOCK_DGRAM, __cpu_to_be16(ETH_P_IPV6));
- if (!fd) {
- ret = 1;
+ if (!fd)
goto out;
- }
if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE,
- args->ifname, strlen(args->ifname))) {
- ret = 1;
+ argv[1], strlen(argv[1])))
goto close;
- }
- pkts = 0;
- found = 0;
- while (pkts < 3 && !found) {
- size = recv(fd, buffer, sizeof(buffer), 0);
- ip6h = (struct ipv6hdr *)buffer;
- pkts++;
+recv:
+ size = recv(fd, buffer, sizeof(buffer), 0);
+ if (size <= 0)
+ goto close;
- if (ip6h->nexthdr == IPPROTO_HOPOPTS) {
- p = buffer + sizeof(*ip6h);
- hoplen = (p[1] + 1) << 3;
+ ip6h = (struct ipv6hdr *)buffer;
- p += sizeof(struct ipv6_hopopt_hdr);
- while (hoplen > 0) {
- opt = (struct ioam6_hdr *)p;
+ if (!ipv6_addr_equal(&ip6h->saddr, &src) ||
+ !ipv6_addr_equal(&ip6h->daddr, &dst))
+ goto recv;
- if (opt->opt_type == IPV6_TLV_IOAM &&
- opt->type == IOAM6_TYPE_PREALLOC) {
- found = 1;
+ if (ip6h->nexthdr != IPPROTO_HOPOPTS)
+ goto close;
- p += sizeof(*opt);
- ioam6h = (struct ioam6_trace_hdr *)p;
+ p = buffer + sizeof(*ip6h);
+ hoplen = (p[1] + 1) << 3;
+ p += sizeof(struct ipv6_hopopt_hdr);
- ret = check_ioam6_trace(ioam6h, args);
- break;
- }
+ while (hoplen > 0) {
+ opt = (struct ioam6_hdr *)p;
- p += opt->opt_len + 2;
- hoplen -= opt->opt_len + 2;
- }
+ if (opt->opt_type == IPV6_TLV_IOAM &&
+ opt->type == IOAM6_TYPE_PREALLOC) {
+ p += sizeof(*opt);
+ ret = func[tid](tid, (struct ioam6_trace_hdr *)p,
+ tr_type, ioam_ns);
+ break;
}
- }
- if (!found)
- ret = 1;
+ p += opt->opt_len + 2;
+ hoplen -= opt->opt_len + 2;
+ }
close:
close(fd);
out:
- free(args);
return ret;
}
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