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215 lines
4.3 KiB
215 lines
4.3 KiB
#!/bin/bash |
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# SPDX-License-Identifier: GPL-2.0 |
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# This test is for checking drop monitor functionality. |
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ret=0 |
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# Kselftest framework requirement - SKIP code is 4. |
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ksft_skip=4 |
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# all tests in this script. Can be overridden with -t option |
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TESTS=" |
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sw_drops |
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hw_drops |
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" |
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IP="ip -netns ns1" |
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TC="tc -netns ns1" |
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DEVLINK="devlink -N ns1" |
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NS_EXEC="ip netns exec ns1" |
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NETDEVSIM_PATH=/sys/bus/netdevsim/ |
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DEV_ADDR=1337 |
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DEV=netdevsim${DEV_ADDR} |
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DEVLINK_DEV=netdevsim/${DEV} |
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log_test() |
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{ |
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local rc=$1 |
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local expected=$2 |
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local msg="$3" |
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if [ ${rc} -eq ${expected} ]; then |
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printf " TEST: %-60s [ OK ]\n" "${msg}" |
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nsuccess=$((nsuccess+1)) |
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else |
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ret=1 |
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nfail=$((nfail+1)) |
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printf " TEST: %-60s [FAIL]\n" "${msg}" |
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fi |
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} |
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setup() |
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{ |
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modprobe netdevsim &> /dev/null |
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set -e |
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ip netns add ns1 |
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$IP link add dummy10 up type dummy |
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$NS_EXEC echo "$DEV_ADDR 1" > ${NETDEVSIM_PATH}/new_device |
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udevadm settle |
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local netdev=$($NS_EXEC ls ${NETDEVSIM_PATH}/devices/${DEV}/net/) |
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$IP link set dev $netdev up |
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set +e |
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} |
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cleanup() |
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{ |
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$NS_EXEC echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device |
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ip netns del ns1 |
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} |
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sw_drops_test() |
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{ |
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echo |
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echo "Software drops test" |
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setup |
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local dir=$(mktemp -d) |
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$TC qdisc add dev dummy10 clsact |
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$TC filter add dev dummy10 egress pref 1 handle 101 proto ip \ |
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flower dst_ip 192.0.2.10 action drop |
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$NS_EXEC mausezahn dummy10 -a 00:11:22:33:44:55 -b 00:aa:bb:cc:dd:ee \ |
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-A 192.0.2.1 -B 192.0.2.10 -t udp sp=12345,dp=54321 -c 0 -q \ |
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-d 100msec & |
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timeout 5 dwdump -o sw -w ${dir}/packets.pcap |
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(( $(tshark -r ${dir}/packets.pcap \ |
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-Y 'ip.dst == 192.0.2.10' 2> /dev/null | wc -l) != 0)) |
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log_test $? 0 "Capturing active software drops" |
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rm ${dir}/packets.pcap |
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{ kill %% && wait %%; } 2>/dev/null |
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timeout 5 dwdump -o sw -w ${dir}/packets.pcap |
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(( $(tshark -r ${dir}/packets.pcap \ |
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-Y 'ip.dst == 192.0.2.10' 2> /dev/null | wc -l) == 0)) |
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log_test $? 0 "Capturing inactive software drops" |
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rm -r $dir |
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cleanup |
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} |
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hw_drops_test() |
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{ |
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echo |
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echo "Hardware drops test" |
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setup |
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local dir=$(mktemp -d) |
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$DEVLINK trap set $DEVLINK_DEV trap blackhole_route action trap |
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timeout 5 dwdump -o hw -w ${dir}/packets.pcap |
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(( $(tshark -r ${dir}/packets.pcap \ |
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-Y 'net_dm.hw_trap_name== blackhole_route' 2> /dev/null \ |
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| wc -l) != 0)) |
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log_test $? 0 "Capturing active hardware drops" |
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rm ${dir}/packets.pcap |
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$DEVLINK trap set $DEVLINK_DEV trap blackhole_route action drop |
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timeout 5 dwdump -o hw -w ${dir}/packets.pcap |
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(( $(tshark -r ${dir}/packets.pcap \ |
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-Y 'net_dm.hw_trap_name== blackhole_route' 2> /dev/null \ |
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| wc -l) == 0)) |
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log_test $? 0 "Capturing inactive hardware drops" |
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rm -r $dir |
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cleanup |
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} |
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################################################################################ |
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# usage |
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usage() |
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{ |
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cat <<EOF |
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usage: ${0##*/} OPTS |
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-t <test> Test(s) to run (default: all) |
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(options: $TESTS) |
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EOF |
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} |
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################################################################################ |
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# main |
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while getopts ":t:h" opt; do |
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case $opt in |
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t) TESTS=$OPTARG;; |
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h) usage; exit 0;; |
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*) usage; exit 1;; |
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esac |
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done |
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if [ "$(id -u)" -ne 0 ];then |
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echo "SKIP: Need root privileges" |
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exit $ksft_skip; |
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fi |
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if [ ! -x "$(command -v ip)" ]; then |
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echo "SKIP: Could not run test without ip tool" |
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exit $ksft_skip |
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fi |
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if [ ! -x "$(command -v devlink)" ]; then |
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echo "SKIP: Could not run test without devlink tool" |
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exit $ksft_skip |
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fi |
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if [ ! -x "$(command -v tshark)" ]; then |
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echo "SKIP: Could not run test without tshark tool" |
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exit $ksft_skip |
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fi |
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if [ ! -x "$(command -v dwdump)" ]; then |
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echo "SKIP: Could not run test without dwdump tool" |
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exit $ksft_skip |
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fi |
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if [ ! -x "$(command -v udevadm)" ]; then |
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echo "SKIP: Could not run test without udevadm tool" |
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exit $ksft_skip |
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fi |
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if [ ! -x "$(command -v timeout)" ]; then |
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echo "SKIP: Could not run test without timeout tool" |
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exit $ksft_skip |
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fi |
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if [ ! -x "$(command -v mausezahn)" ]; then |
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echo "SKIP: Could not run test without mausezahn tool" |
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exit $ksft_skip |
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fi |
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tshark -G fields 2> /dev/null | grep -q net_dm |
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if [ $? -ne 0 ]; then |
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echo "SKIP: tshark too old, missing net_dm dissector" |
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exit $ksft_skip |
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fi |
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# start clean |
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cleanup &> /dev/null |
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for t in $TESTS |
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do |
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case $t in |
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sw_drops|sw) sw_drops_test;; |
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hw_drops|hw) hw_drops_test;; |
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help) echo "Test names: $TESTS"; exit 0;; |
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esac |
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done |
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if [ "$TESTS" != "none" ]; then |
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printf "\nTests passed: %3d\n" ${nsuccess} |
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printf "Tests failed: %3d\n" ${nfail} |
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fi |
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exit $ret
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