Commit 7d0455e9 authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Jakub Kicinski

selftests: Add a basic HSR test.

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>
Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 20d3c1e9
......@@ -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
......
# SPDX-License-Identifier: GPL-2.0
top_srcdir = ../../../../..
TEST_PROGS := hsr_ping.sh
include ../../lib.mk
CONFIG_IPV6=y
CONFIG_NET_SCH_NETEM=m
CONFIG_HSR=y
CONFIG_VETH=y
#!/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
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