This test adds a basic HSRv0 network with 3 nodes. In its current shape it sends and forwards packets, announcements and so merges nodes based on MAC A/B information. It is able to detect duplicate packets and packetloss should any occur.

Cc: Shuah Khan shuah@kernel.org Cc: linux-kselftest@vger.kernel.org Signed-off-by: Sebastian Andrzej Siewior bigeasy@linutronix.de --- tools/testing/selftests/Makefile | 1 + tools/testing/selftests/net/hsr/Makefile | 7 + tools/testing/selftests/net/hsr/config | 4 + tools/testing/selftests/net/hsr/hsr_ping.sh | 256 ++++++++++++++++++++ 4 files changed, 268 insertions(+) create mode 100644 tools/testing/selftests/net/hsr/Makefile create mode 100644 tools/testing/selftests/net/hsr/config create mode 100755 tools/testing/selftests/net/hsr/hsr_ping.sh

diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index f07aef7c592c2..b57b091d80268 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -48,6 +48,7 @@ TARGETS += nci TARGETS += net TARGETS += net/af_unix TARGETS += net/forwarding +TARGETS += net/hsr TARGETS += net/mptcp TARGETS += net/openvswitch TARGETS += netfilter diff --git a/tools/testing/selftests/net/hsr/Makefile b/tools/testing/selftests/net/hsr/Makefile new file mode 100644 index 0000000000000..92c1d9d080cd5 --- /dev/null +++ b/tools/testing/selftests/net/hsr/Makefile @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0 + +top_srcdir = ../../../../.. + +TEST_PROGS := hsr_ping.sh + +include ../../lib.mk diff --git a/tools/testing/selftests/net/hsr/config b/tools/testing/selftests/net/hsr/config new file mode 100644 index 0000000000000..22061204fb691 --- /dev/null +++ b/tools/testing/selftests/net/hsr/config @@ -0,0 +1,4 @@ +CONFIG_IPV6=y +CONFIG_NET_SCH_NETEM=m +CONFIG_HSR=y +CONFIG_VETH=y diff --git a/tools/testing/selftests/net/hsr/hsr_ping.sh b/tools/testing/selftests/net/hsr/hsr_ping.sh new file mode 100755 index 0000000000000..df91435387086 --- /dev/null +++ b/tools/testing/selftests/net/hsr/hsr_ping.sh @@ -0,0 +1,256 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +ret=0 +ksft_skip=4 +ipv6=true + +optstring="h4" +usage() { + echo "Usage: $0 [OPTION]" + echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)" +} + +while getopts "$optstring" option;do + case "$option" in + "h") + usage $0 + exit 0 + ;; + "4") + ipv6=false + ;; + "?") + usage $0 + exit 1 + ;; +esac +done + +sec=$(date +%s) +rndh=$(printf %x $sec)-$(mktemp -u XXXXXX) +ns1="ns1-$rndh" +ns2="ns2-$rndh" +ns3="ns3-$rndh" + +cleanup() +{ + local netns + for netns in "$ns1" "$ns2" "$ns3" ;do + ip netns del $netns + done +} + +ip -Version > /dev/null 2>&1 +if [ $? -ne 0 ];then + echo "SKIP: Could not run test without ip tool" + exit $ksft_skip +fi + +trap cleanup EXIT + +for i in "$ns1" "$ns2" "$ns3" ;do + ip netns add $i || exit $ksft_skip + ip -net $i link set lo up +done + +echo "INFO: preparing interfaces." +# Three HSR nodes. Each node has one link to each of its neighbour, two links in total. +# +# ns1eth1 ----- ns2eth1 +# hsr1 hsr2 +# ns1eth2 ns2eth2 +# | | +# ns3eth1 ns3eth2 +# \ / +# hsr3 +# +# Interfaces +ip link add ns1eth1 netns "$ns1" type veth peer name ns2eth1 netns "$ns2" +ip link add ns1eth2 netns "$ns1" type veth peer name ns3eth1 netns "$ns3" +ip link add ns3eth2 netns "$ns3" type veth peer name ns2eth2 netns "$ns2" + +# HSRv0. +ip -net "$ns1" link add name hsr1 type hsr slave1 ns1eth1 slave2 ns1eth2 supervision 45 version 0 proto 0 +ip -net "$ns2" link add name hsr2 type hsr slave1 ns2eth1 slave2 ns2eth2 supervision 45 version 0 proto 0 +ip -net "$ns3" link add name hsr3 type hsr slave1 ns3eth1 slave2 ns3eth2 supervision 45 version 0 proto 0 + +# IP for HSR +ip -net "$ns1" addr add 100.64.0.1/24 dev hsr1 +ip -net "$ns1" addr add dead:beef:1::1/64 dev hsr1 nodad +ip -net "$ns2" addr add 100.64.0.2/24 dev hsr2 +ip -net "$ns2" addr add dead:beef:1::2/64 dev hsr2 nodad +ip -net "$ns3" addr add 100.64.0.3/24 dev hsr3 +ip -net "$ns3" addr add dead:beef:1::3/64 dev hsr3 nodad + +# All Links up +ip -net "$ns1" link set ns1eth1 up +ip -net "$ns1" link set ns1eth2 up +ip -net "$ns1" link set hsr1 up + +ip -net "$ns2" link set ns2eth1 up +ip -net "$ns2" link set ns2eth2 up +ip -net "$ns2" link set hsr2 up + +ip -net "$ns3" link set ns3eth1 up +ip -net "$ns3" link set ns3eth2 up +ip -net "$ns3" link set hsr3 up + +# $1: IP address +is_v6() +{ + [ -z "${1##*:*}" ] +} + +do_ping() +{ + local netns="$1" + local connect_addr="$2" + local ping_args="-q -c 2" + + if is_v6 "${connect_addr}"; then + $ipv6 || return 0 + ping_args="${ping_args} -6" + fi + + ip netns exec ${netns} ping ${ping_args} $connect_addr >/dev/null + if [ $? -ne 0 ] ; then + echo "$netns -> $connect_addr connectivity [ FAIL ]" 1>&2 + ret=1 + return 1 + fi + + return 0 +} + +do_ping_long() +{ + local netns="$1" + local connect_addr="$2" + local ping_args="-q -c 10" + + if is_v6 "${connect_addr}"; then + $ipv6 || return 0 + ping_args="${ping_args} -6" + fi + + OUT="$(LANG=C ip netns exec ${netns} ping ${ping_args} $connect_addr | grep received)" + if [ $? -ne 0 ] ; then + echo "$netns -> $connect_addr ping [ FAIL ]" 1>&2 + ret=1 + return 1 + fi + + VAL="$(echo $OUT | cut -d' ' -f1-8)" + if [ "$VAL" != "10 packets transmitted, 10 received, 0% packet loss," ] + then + echo "$netns -> $connect_addr ping TEST [ FAIL ]" + echo "Expect to send and receive 10 packets and no duplicates." + echo "Full message: ${OUT}." + ret=1 + return 1 + fi + + return 0 +} + +stop_if_error() +{ + local msg="$1" + + if [ ${ret} -ne 0 ]; then + echo "FAIL: ${msg}" 1>&2 + exit ${ret} + fi +} + + +echo "INFO: Initial validation ping." +# Each node has to be able each one. +do_ping "$ns1" 100.64.0.2 +do_ping "$ns2" 100.64.0.1 +do_ping "$ns3" 100.64.0.1 +stop_if_error "Initial validation failed." + +do_ping "$ns1" 100.64.0.3 +do_ping "$ns2" 100.64.0.3 +do_ping "$ns3" 100.64.0.2 + +do_ping "$ns1" dead:beef:1::2 +do_ping "$ns1" dead:beef:1::3 +do_ping "$ns2" dead:beef:1::1 +do_ping "$ns2" dead:beef:1::2 +do_ping "$ns3" dead:beef:1::1 +do_ping "$ns3" dead:beef:1::2 + +stop_if_error "Initial validation failed." + +# Wait until supervisor all supervision frames have been processed and the node +# entries have been merged. Otherwise duplicate frames will be observed which is +# valid at this stage. +WAIT=5 +while [ ${WAIT} -gt 0 ] +do + grep 00:00:00:00:00:00 /sys/kernel/debug/hsr/hsr*/node_table + if [ $? -ne 0 ] + then + break + fi + sleep 1 + let WAIT = WAIT - 1 +done + +# Just a safety delay in case the above check didn't handle it. +sleep 1 + +echo "INFO: Longer ping test." +do_ping_long "$ns1" 100.64.0.2 +do_ping_long "$ns1" dead:beef:1::2 +do_ping_long "$ns1" 100.64.0.3 +do_ping_long "$ns1" dead:beef:1::3 + +stop_if_error "Longer ping test failed." + +do_ping_long "$ns2" 100.64.0.1 +do_ping_long "$ns2" dead:beef:1::1 +do_ping_long "$ns2" 100.64.0.3 +do_ping_long "$ns2" dead:beef:1::2 +stop_if_error "Longer ping test failed." + +do_ping_long "$ns3" 100.64.0.1 +do_ping_long "$ns3" dead:beef:1::1 +do_ping_long "$ns3" 100.64.0.2 +do_ping_long "$ns3" dead:beef:1::2 +stop_if_error "Longer ping test failed." + +echo "INFO: Cutting one link." +do_ping_long "$ns1" 100.64.0.3 & + +sleep 3 +ip -net "$ns3" link set ns3eth1 down +wait + +ip -net "$ns3" link set ns3eth1 up + +stop_if_error "Failed with one link down." + +echo "INFO: Delay the link and drop a few packages." +tc -net "$ns3" qdisc add dev ns3eth1 root netem delay 50ms +tc -net "$ns2" qdisc add dev ns2eth1 root netem delay 5ms loss 25% + +do_ping_long "$ns1" 100.64.0.2 +do_ping_long "$ns1" 100.64.0.3 + +stop_if_error "Failed with delay and packetloss." + +do_ping_long "$ns2" 100.64.0.1 +do_ping_long "$ns2" 100.64.0.3 + +stop_if_error "Failed with delay and packetloss." + +do_ping_long "$ns3" 100.64.0.1 +do_ping_long "$ns3" 100.64.0.2 +stop_if_error "Failed with delay and packetloss." + +echo "INFO: All good." +exit $ret