#!/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