#!/bin/bash # SPDX-License-Identifier: GPL-2.0 # This test is for checking GRE GSO. ret=0 # Kselftest framework requirement - SKIP code is 4. ksft_skip=4 # all tests in this script. Can be overridden with -t option TESTS="gre_gso" VERBOSE=0 PAUSE_ON_FAIL=no PAUSE=no IP="ip -netns ns1" NS_EXEC="ip netns exec ns1" TMPFILE=`mktemp` PID= log_test() { local rc=$1 local expected=$2 local msg="$3" if [ ${rc} -eq ${expected} ]; then printf " TEST: %-60s [ OK ]\n" "${msg}" nsuccess=$((nsuccess+1)) else ret=1 nfail=$((nfail+1)) printf " TEST: %-60s [FAIL]\n" "${msg}" if [ "${PAUSE_ON_FAIL}" = "yes" ]; then echo echo "hit enter to continue, 'q' to quit" read a [ "$a" = "q" ] && exit 1 fi fi if [ "${PAUSE}" = "yes" ]; then echo echo "hit enter to continue, 'q' to quit" read a [ "$a" = "q" ] && exit 1 fi } setup() { set -e ip netns add ns1 ip netns set ns1 auto $IP link set dev lo up ip link add veth0 type veth peer name veth1 ip link set veth0 up ip link set veth1 netns ns1 $IP link set veth1 name veth0 $IP link set veth0 up dd if=/dev/urandom of=$TMPFILE bs=1024 count=2048 &>/dev/null set +e } cleanup() { rm -rf $TMPFILE [ -n "$PID" ] && kill $PID ip link del dev gre1 &> /dev/null ip link del dev veth0 &> /dev/null ip netns del ns1 } get_linklocal() { local dev=$1 local ns=$2 local addr [ -n "$ns" ] && ns="-netns $ns" addr=$(ip -6 -br $ns addr show dev ${dev} | \ awk '{ for (i = 3; i <= NF; ++i) { if ($i ~ /^fe80/) print $i } }' ) addr=${addr/\/*} [ -z "$addr" ] && return 1 echo $addr return 0 } gre_create_tun() { local a1=$1 local a2=$2 local mode [[ $a1 =~ ^[0-9.]*$ ]] && mode=gre || mode=ip6gre ip tunnel add gre1 mode $mode local $a1 remote $a2 dev veth0 ip link set gre1 up $IP tunnel add gre1 mode $mode local $a2 remote $a1 dev veth0 $IP link set gre1 up } gre_gst_test_checks() { local name=$1 local addr=$2 $NS_EXEC nc -kl $port >/dev/null & PID=$! while ! $NS_EXEC ss -ltn | grep -q $port; do ((i++)); sleep 0.01; done cat $TMPFILE | timeout 1 nc $addr $port log_test $? 0 "$name - copy file w/ TSO" ethtool -K veth0 tso off cat $TMPFILE | timeout 1 nc $addr $port log_test $? 0 "$name - copy file w/ GSO" ethtool -K veth0 tso on kill $PID PID= } gre6_gso_test() { local port=7777 setup a1=$(get_linklocal veth0) a2=$(get_linklocal veth0 ns1) gre_create_tun $a1 $a2 ip addr add 172.16.2.1/24 dev gre1 $IP addr add 172.16.2.2/24 dev gre1 ip -6 addr add 2001:db8:1::1/64 dev gre1 nodad $IP -6 addr add 2001:db8:1::2/64 dev gre1 nodad sleep 2 gre_gst_test_checks GREv6/v4 172.16.2.2 gre_gst_test_checks GREv6/v6 2001:db8:1::2 cleanup } gre_gso_test() { gre6_gso_test } ################################################################################ # usage usage() { cat < Test(s) to run (default: all) (options: $TESTS) -p Pause on fail -P Pause after each test before cleanup -v verbose mode (show commands and output) EOF } ################################################################################ # main while getopts :t:pPhv o do case $o in t) TESTS=$OPTARG;; p) PAUSE_ON_FAIL=yes;; P) PAUSE=yes;; v) VERBOSE=$(($VERBOSE + 1));; h) usage; exit 0;; *) usage; exit 1;; esac done PEER_CMD="ip netns exec ${PEER_NS}" # make sure we don't pause twice [ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no if [ "$(id -u)" -ne 0 ];then echo "SKIP: Need root privileges" exit $ksft_skip; fi if [ ! -x "$(command -v ip)" ]; then echo "SKIP: Could not run test without ip tool" exit $ksft_skip fi if [ ! -x "$(command -v nc)" ]; then echo "SKIP: Could not run test without nc tool" exit $ksft_skip fi # start clean cleanup &> /dev/null for t in $TESTS do case $t in gre_gso) gre_gso_test;; help) echo "Test names: $TESTS"; exit 0;; esac done if [ "$TESTS" != "none" ]; then printf "\nTests passed: %3d\n" ${nsuccess} printf "Tests failed: %3d\n" ${nfail} fi exit $ret