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selftests: add simple GSO GRE test
Test case for commit a6e3f2985a ("ip6_tunnel: fix GRE6 segmentation").
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski
David S. Miller
parent
3f22bb137e
commit
025efa0a82
@ -27,6 +27,7 @@ TEST_PROGS += udpgro_fwd.sh
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TEST_PROGS += veth.sh
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TEST_PROGS += ioam6.sh
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TEST_PROGS += gro.sh
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TEST_PROGS += gre_gso.sh
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TEST_PROGS_EXTENDED := in_netns.sh
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TEST_GEN_FILES = socket nettest
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TEST_GEN_FILES += psock_fanout psock_tpacket msg_zerocopy reuseport_addr_any
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236
tools/testing/selftests/net/gre_gso.sh
Executable file
236
tools/testing/selftests/net/gre_gso.sh
Executable file
@ -0,0 +1,236 @@
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# This test is for checking GRE GSO.
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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="gre_gso"
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VERBOSE=0
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PAUSE_ON_FAIL=no
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PAUSE=no
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IP="ip -netns ns1"
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NS_EXEC="ip netns exec ns1"
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TMPFILE=`mktemp`
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PID=
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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" "${msg}"
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if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
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echo
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echo "hit enter to continue, 'q' to quit"
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read a
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[ "$a" = "q" ] && exit 1
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fi
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fi
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if [ "${PAUSE}" = "yes" ]; then
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echo
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echo "hit enter to continue, 'q' to quit"
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read a
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[ "$a" = "q" ] && exit 1
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fi
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}
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setup()
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{
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set -e
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ip netns add ns1
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ip netns set ns1 auto
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$IP link set dev lo up
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ip link add veth0 type veth peer name veth1
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ip link set veth0 up
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ip link set veth1 netns ns1
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$IP link set veth1 name veth0
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$IP link set veth0 up
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dd if=/dev/urandom of=$TMPFILE bs=1024 count=2048 &>/dev/null
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set +e
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}
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cleanup()
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{
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rm -rf $TMPFILE
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[ -n "$PID" ] && kill $PID
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ip link del dev gre1 &> /dev/null
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ip link del dev veth0 &> /dev/null
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ip netns del ns1
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}
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get_linklocal()
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{
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local dev=$1
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local ns=$2
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local addr
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[ -n "$ns" ] && ns="-netns $ns"
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addr=$(ip -6 -br $ns addr show dev ${dev} | \
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awk '{
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for (i = 3; i <= NF; ++i) {
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if ($i ~ /^fe80/)
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print $i
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}
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}'
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)
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addr=${addr/\/*}
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[ -z "$addr" ] && return 1
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echo $addr
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return 0
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}
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gre_create_tun()
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{
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local a1=$1
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local a2=$2
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local mode
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[[ $a1 =~ ^[0-9.]*$ ]] && mode=gre || mode=ip6gre
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ip tunnel add gre1 mode $mode local $a1 remote $a2 dev veth0
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ip link set gre1 up
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$IP tunnel add gre1 mode $mode local $a2 remote $a1 dev veth0
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$IP link set gre1 up
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}
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gre_gst_test_checks()
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{
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local name=$1
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local addr=$2
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$NS_EXEC nc -kl $port >/dev/null &
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PID=$!
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while ! $NS_EXEC ss -ltn | grep -q $port; do ((i++)); sleep 0.01; done
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cat $TMPFILE | timeout 1 nc $addr $port
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log_test $? 0 "$name - copy file w/ TSO"
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ethtool -K veth0 tso off
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cat $TMPFILE | timeout 1 nc $addr $port
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log_test $? 0 "$name - copy file w/ GSO"
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ethtool -K veth0 tso on
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kill $PID
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PID=
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}
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gre6_gso_test()
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{
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local port=7777
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setup
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a1=$(get_linklocal veth0)
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a2=$(get_linklocal veth0 ns1)
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gre_create_tun $a1 $a2
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ip addr add 172.16.2.1/24 dev gre1
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$IP addr add 172.16.2.2/24 dev gre1
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ip -6 addr add 2001:db8:1::1/64 dev gre1 nodad
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$IP -6 addr add 2001:db8:1::2/64 dev gre1 nodad
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sleep 2
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gre_gst_test_checks GREv6/v4 172.16.2.2
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gre_gst_test_checks GREv6/v6 2001:db8:1::2
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cleanup
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}
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gre_gso_test()
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{
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gre6_gso_test
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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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-p Pause on fail
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-P Pause after each test before cleanup
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-v verbose mode (show commands and output)
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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:pPhv o
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do
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case $o in
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t) TESTS=$OPTARG;;
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p) PAUSE_ON_FAIL=yes;;
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P) PAUSE=yes;;
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v) VERBOSE=$(($VERBOSE + 1));;
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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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PEER_CMD="ip netns exec ${PEER_NS}"
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# make sure we don't pause twice
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[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
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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 nc)" ]; then
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echo "SKIP: Could not run test without nc tool"
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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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gre_gso) gre_gso_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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