Merge branch 'selftests/bpf: use temp netns for testing' (b3dddab2) · Commits · EulixOS / Software / Kernel

tools/testing/selftests/bpf/test_lwt_seg6local.sh

+88 −82

Original line number	Original line	Diff line number	Diff line
	@@ -23,6 +23,12 @@

	# Kselftest framework requirement - SKIP code is 4.		# Kselftest framework requirement - SKIP code is 4.
	ksft_skip=4		ksft_skip=4
			readonly NS1="ns1-$(mktemp -u XXXXXX)"
			readonly NS2="ns2-$(mktemp -u XXXXXX)"
			readonly NS3="ns3-$(mktemp -u XXXXXX)"
			readonly NS4="ns4-$(mktemp -u XXXXXX)"
			readonly NS5="ns5-$(mktemp -u XXXXXX)"
			readonly NS6="ns6-$(mktemp -u XXXXXX)"

	msg="skip all tests:"		msg="skip all tests:"
	if [ $UID != 0 ]; then		if [ $UID != 0 ]; then
	@@ -41,23 +47,23 @@ cleanup()
	fi		fi

	set +e		set +e
	ip netns del ns1 2> /dev/null		ip netns del ${NS1} 2> /dev/null
	ip netns del ns2 2> /dev/null		ip netns del ${NS2} 2> /dev/null
	ip netns del ns3 2> /dev/null		ip netns del ${NS3} 2> /dev/null
	ip netns del ns4 2> /dev/null		ip netns del ${NS4} 2> /dev/null
	ip netns del ns5 2> /dev/null		ip netns del ${NS5} 2> /dev/null
	ip netns del ns6 2> /dev/null		ip netns del ${NS6} 2> /dev/null
	rm -f $TMP_FILE		rm -f $TMP_FILE
	}		}

	set -e		set -e

	ip netns add ns1		ip netns add ${NS1}
	ip netns add ns2		ip netns add ${NS2}
	ip netns add ns3		ip netns add ${NS3}
	ip netns add ns4		ip netns add ${NS4}
	ip netns add ns5		ip netns add ${NS5}
	ip netns add ns6		ip netns add ${NS6}

	trap cleanup 0 2 3 6 9		trap cleanup 0 2 3 6 9

	@@ -67,78 +73,78 @@ ip link add veth5 type veth peer name veth6
	ip link add veth7 type veth peer name veth8		ip link add veth7 type veth peer name veth8
	ip link add veth9 type veth peer name veth10		ip link add veth9 type veth peer name veth10

	ip link set veth1 netns ns1		ip link set veth1 netns ${NS1}
	ip link set veth2 netns ns2		ip link set veth2 netns ${NS2}
	ip link set veth3 netns ns2		ip link set veth3 netns ${NS2}
	ip link set veth4 netns ns3		ip link set veth4 netns ${NS3}
	ip link set veth5 netns ns3		ip link set veth5 netns ${NS3}
	ip link set veth6 netns ns4		ip link set veth6 netns ${NS4}
	ip link set veth7 netns ns4		ip link set veth7 netns ${NS4}
	ip link set veth8 netns ns5		ip link set veth8 netns ${NS5}
	ip link set veth9 netns ns5		ip link set veth9 netns ${NS5}
	ip link set veth10 netns ns6		ip link set veth10 netns ${NS6}

	ip netns exec ns1 ip link set dev veth1 up		ip netns exec ${NS1} ip link set dev veth1 up
	ip netns exec ns2 ip link set dev veth2 up		ip netns exec ${NS2} ip link set dev veth2 up
	ip netns exec ns2 ip link set dev veth3 up		ip netns exec ${NS2} ip link set dev veth3 up
	ip netns exec ns3 ip link set dev veth4 up		ip netns exec ${NS3} ip link set dev veth4 up
	ip netns exec ns3 ip link set dev veth5 up		ip netns exec ${NS3} ip link set dev veth5 up
	ip netns exec ns4 ip link set dev veth6 up		ip netns exec ${NS4} ip link set dev veth6 up
	ip netns exec ns4 ip link set dev veth7 up		ip netns exec ${NS4} ip link set dev veth7 up
	ip netns exec ns5 ip link set dev veth8 up		ip netns exec ${NS5} ip link set dev veth8 up
	ip netns exec ns5 ip link set dev veth9 up		ip netns exec ${NS5} ip link set dev veth9 up
	ip netns exec ns6 ip link set dev veth10 up		ip netns exec ${NS6} ip link set dev veth10 up
	ip netns exec ns6 ip link set dev lo up		ip netns exec ${NS6} ip link set dev lo up

	# All link scope addresses and routes required between veths		# All link scope addresses and routes required between veths
	ip netns exec ns1 ip -6 addr add fb00::12/16 dev veth1 scope link		ip netns exec ${NS1} ip -6 addr add fb00::12/16 dev veth1 scope link
	ip netns exec ns1 ip -6 route add fb00::21 dev veth1 scope link		ip netns exec ${NS1} ip -6 route add fb00::21 dev veth1 scope link
	ip netns exec ns2 ip -6 addr add fb00::21/16 dev veth2 scope link		ip netns exec ${NS2} ip -6 addr add fb00::21/16 dev veth2 scope link
	ip netns exec ns2 ip -6 addr add fb00::34/16 dev veth3 scope link		ip netns exec ${NS2} ip -6 addr add fb00::34/16 dev veth3 scope link
	ip netns exec ns2 ip -6 route add fb00::43 dev veth3 scope link		ip netns exec ${NS2} ip -6 route add fb00::43 dev veth3 scope link
	ip netns exec ns3 ip -6 route add fb00::65 dev veth5 scope link		ip netns exec ${NS3} ip -6 route add fb00::65 dev veth5 scope link
	ip netns exec ns3 ip -6 addr add fb00::43/16 dev veth4 scope link		ip netns exec ${NS3} ip -6 addr add fb00::43/16 dev veth4 scope link
	ip netns exec ns3 ip -6 addr add fb00::56/16 dev veth5 scope link		ip netns exec ${NS3} ip -6 addr add fb00::56/16 dev veth5 scope link
	ip netns exec ns4 ip -6 addr add fb00::65/16 dev veth6 scope link		ip netns exec ${NS4} ip -6 addr add fb00::65/16 dev veth6 scope link
	ip netns exec ns4 ip -6 addr add fb00::78/16 dev veth7 scope link		ip netns exec ${NS4} ip -6 addr add fb00::78/16 dev veth7 scope link
	ip netns exec ns4 ip -6 route add fb00::87 dev veth7 scope link		ip netns exec ${NS4} ip -6 route add fb00::87 dev veth7 scope link
	ip netns exec ns5 ip -6 addr add fb00::87/16 dev veth8 scope link		ip netns exec ${NS5} ip -6 addr add fb00::87/16 dev veth8 scope link
	ip netns exec ns5 ip -6 addr add fb00::910/16 dev veth9 scope link		ip netns exec ${NS5} ip -6 addr add fb00::910/16 dev veth9 scope link
	ip netns exec ns5 ip -6 route add fb00::109 dev veth9 scope link		ip netns exec ${NS5} ip -6 route add fb00::109 dev veth9 scope link
	ip netns exec ns5 ip -6 route add fb00::109 table 117 dev veth9 scope link		ip netns exec ${NS5} ip -6 route add fb00::109 table 117 dev veth9 scope link
	ip netns exec ns6 ip -6 addr add fb00::109/16 dev veth10 scope link		ip netns exec ${NS6} ip -6 addr add fb00::109/16 dev veth10 scope link

	ip netns exec ns1 ip -6 addr add fb00::1/16 dev lo		ip netns exec ${NS1} ip -6 addr add fb00::1/16 dev lo
	ip netns exec ns1 ip -6 route add fb00::6 dev veth1 via fb00::21		ip netns exec ${NS1} ip -6 route add fb00::6 dev veth1 via fb00::21

	ip netns exec ns2 ip -6 route add fb00::6 encap bpf in obj test_lwt_seg6local.o sec encap_srh dev veth2		ip netns exec ${NS2} ip -6 route add fb00::6 encap bpf in obj test_lwt_seg6local.o sec encap_srh dev veth2
	ip netns exec ns2 ip -6 route add fd00::1 dev veth3 via fb00::43 scope link		ip netns exec ${NS2} ip -6 route add fd00::1 dev veth3 via fb00::43 scope link

	ip netns exec ns3 ip -6 route add fc42::1 dev veth5 via fb00::65		ip netns exec ${NS3} ip -6 route add fc42::1 dev veth5 via fb00::65
	ip netns exec ns3 ip -6 route add fd00::1 encap seg6local action End.BPF endpoint obj test_lwt_seg6local.o sec add_egr_x dev veth4		ip netns exec ${NS3} ip -6 route add fd00::1 encap seg6local action End.BPF endpoint obj test_lwt_seg6local.o sec add_egr_x dev veth4

	ip netns exec ns4 ip -6 route add fd00::2 encap seg6local action End.BPF endpoint obj test_lwt_seg6local.o sec pop_egr dev veth6		ip netns exec ${NS4} ip -6 route add fd00::2 encap seg6local action End.BPF endpoint obj test_lwt_seg6local.o sec pop_egr dev veth6
	ip netns exec ns4 ip -6 addr add fc42::1 dev lo		ip netns exec ${NS4} ip -6 addr add fc42::1 dev lo
	ip netns exec ns4 ip -6 route add fd00::3 dev veth7 via fb00::87		ip netns exec ${NS4} ip -6 route add fd00::3 dev veth7 via fb00::87

	ip netns exec ns5 ip -6 route add fd00::4 table 117 dev veth9 via fb00::109		ip netns exec ${NS5} ip -6 route add fd00::4 table 117 dev veth9 via fb00::109
	ip netns exec ns5 ip -6 route add fd00::3 encap seg6local action End.BPF endpoint obj test_lwt_seg6local.o sec inspect_t dev veth8		ip netns exec ${NS5} ip -6 route add fd00::3 encap seg6local action End.BPF endpoint obj test_lwt_seg6local.o sec inspect_t dev veth8

	ip netns exec ns6 ip -6 addr add fb00::6/16 dev lo		ip netns exec ${NS6} ip -6 addr add fb00::6/16 dev lo
	ip netns exec ns6 ip -6 addr add fd00::4/16 dev lo		ip netns exec ${NS6} ip -6 addr add fd00::4/16 dev lo

	ip netns exec ns1 sysctl net.ipv6.conf.all.forwarding=1 > /dev/null		ip netns exec ${NS1} sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
	ip netns exec ns2 sysctl net.ipv6.conf.all.forwarding=1 > /dev/null		ip netns exec ${NS2} sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
	ip netns exec ns3 sysctl net.ipv6.conf.all.forwarding=1 > /dev/null		ip netns exec ${NS3} sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
	ip netns exec ns4 sysctl net.ipv6.conf.all.forwarding=1 > /dev/null		ip netns exec ${NS4} sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
	ip netns exec ns5 sysctl net.ipv6.conf.all.forwarding=1 > /dev/null		ip netns exec ${NS5} sysctl net.ipv6.conf.all.forwarding=1 > /dev/null

	ip netns exec ns6 sysctl net.ipv6.conf.all.seg6_enabled=1 > /dev/null		ip netns exec ${NS6} sysctl net.ipv6.conf.all.seg6_enabled=1 > /dev/null
	ip netns exec ns6 sysctl net.ipv6.conf.lo.seg6_enabled=1 > /dev/null		ip netns exec ${NS6} sysctl net.ipv6.conf.lo.seg6_enabled=1 > /dev/null
	ip netns exec ns6 sysctl net.ipv6.conf.veth10.seg6_enabled=1 > /dev/null		ip netns exec ${NS6} sysctl net.ipv6.conf.veth10.seg6_enabled=1 > /dev/null

	ip netns exec ns6 nc -l -6 -u -d 7330 > $TMP_FILE &		ip netns exec ${NS6} nc -l -6 -u -d 7330 > $TMP_FILE &
	ip netns exec ns1 bash -c "echo 'foobar' \| nc -w0 -6 -u -p 2121 -s fb00::1 fb00::6 7330"		ip netns exec ${NS1} bash -c "echo 'foobar' \| nc -w0 -6 -u -p 2121 -s fb00::1 fb00::6 7330"
	sleep 5 # wait enough time to ensure the UDP datagram arrived to the last segment		sleep 5 # wait enough time to ensure the UDP datagram arrived to the last segment
	kill -TERM $!		kill -TERM $!

tools/testing/selftests/bpf/test_tcp_check_syncookie.sh

+3 −2

Original line number	Original line	Diff line number	Diff line
	@@ -4,6 +4,7 @@
	# Copyright (c) 2019 Cloudflare		# Copyright (c) 2019 Cloudflare

	set -eu		set -eu
			readonly NS1="ns1-$(mktemp -u XXXXXX)"

	wait_for_ip()		wait_for_ip()
	{		{
	@@ -28,12 +29,12 @@ get_prog_id()

	ns1_exec()		ns1_exec()
	{		{
	ip netns exec ns1 "$@"		ip netns exec ${NS1} "$@"
	}		}

	setup()		setup()
	{		{
	ip netns add ns1		ip netns add ${NS1}
	ns1_exec ip link set lo up		ns1_exec ip link set lo up

	ns1_exec sysctl -w net.ipv4.tcp_syncookies=2		ns1_exec sysctl -w net.ipv4.tcp_syncookies=2

tools/testing/selftests/bpf/test_xdp_meta.sh

+20 −18

Original line number	Original line	Diff line number	Diff line
	@@ -2,6 +2,8 @@

	# Kselftest framework requirement - SKIP code is 4.		# Kselftest framework requirement - SKIP code is 4.
	readonly KSFT_SKIP=4		readonly KSFT_SKIP=4
			readonly NS1="ns1-$(mktemp -u XXXXXX)"
			readonly NS2="ns2-$(mktemp -u XXXXXX)"

	cleanup()		cleanup()
	{		{
	@@ -13,8 +15,8 @@ cleanup()

	set +e		set +e
	ip link del veth1 2> /dev/null		ip link del veth1 2> /dev/null
	ip netns del ns1 2> /dev/null		ip netns del ${NS1} 2> /dev/null
	ip netns del ns2 2> /dev/null		ip netns del ${NS2} 2> /dev/null
	}		}

	ip link set dev lo xdp off 2>/dev/null > /dev/null		ip link set dev lo xdp off 2>/dev/null > /dev/null
	@@ -24,32 +26,32 @@ if [ $? -ne 0 ];then
	fi		fi
	set -e		set -e

	ip netns add ns1		ip netns add ${NS1}
	ip netns add ns2		ip netns add ${NS2}

	trap cleanup 0 2 3 6 9		trap cleanup 0 2 3 6 9

	ip link add veth1 type veth peer name veth2		ip link add veth1 type veth peer name veth2

	ip link set veth1 netns ns1		ip link set veth1 netns ${NS1}
	ip link set veth2 netns ns2		ip link set veth2 netns ${NS2}

	ip netns exec ns1 ip addr add 10.1.1.11/24 dev veth1		ip netns exec ${NS1} ip addr add 10.1.1.11/24 dev veth1
	ip netns exec ns2 ip addr add 10.1.1.22/24 dev veth2		ip netns exec ${NS2} ip addr add 10.1.1.22/24 dev veth2

	ip netns exec ns1 tc qdisc add dev veth1 clsact		ip netns exec ${NS1} tc qdisc add dev veth1 clsact
	ip netns exec ns2 tc qdisc add dev veth2 clsact		ip netns exec ${NS2} tc qdisc add dev veth2 clsact

	ip netns exec ns1 tc filter add dev veth1 ingress bpf da obj test_xdp_meta.o sec t		ip netns exec ${NS1} tc filter add dev veth1 ingress bpf da obj test_xdp_meta.o sec t
	ip netns exec ns2 tc filter add dev veth2 ingress bpf da obj test_xdp_meta.o sec t		ip netns exec ${NS2} tc filter add dev veth2 ingress bpf da obj test_xdp_meta.o sec t

	ip netns exec ns1 ip link set dev veth1 xdp obj test_xdp_meta.o sec x		ip netns exec ${NS1} ip link set dev veth1 xdp obj test_xdp_meta.o sec x
	ip netns exec ns2 ip link set dev veth2 xdp obj test_xdp_meta.o sec x		ip netns exec ${NS2} ip link set dev veth2 xdp obj test_xdp_meta.o sec x

	ip netns exec ns1 ip link set dev veth1 up		ip netns exec ${NS1} ip link set dev veth1 up
	ip netns exec ns2 ip link set dev veth2 up		ip netns exec ${NS2} ip link set dev veth2 up

	ip netns exec ns1 ping -c 1 10.1.1.22		ip netns exec ${NS1} ping -c 1 10.1.1.22
	ip netns exec ns2 ping -c 1 10.1.1.11		ip netns exec ${NS2} ping -c 1 10.1.1.11

	exit 0		exit 0

tools/testing/selftests/bpf/test_xdp_redirect.sh

+16 −14

Original line number	Original line	Diff line number	Diff line
	@@ -10,6 +10,8 @@
	# \| xdp forwarding \|		# \| xdp forwarding \|
	# ------------------		# ------------------

			readonly NS1="ns1-$(mktemp -u XXXXXX)"
			readonly NS2="ns2-$(mktemp -u XXXXXX)"
	ret=0		ret=0

	setup()		setup()
	@@ -17,27 +19,27 @@ setup()

	local xdpmode=$1		local xdpmode=$1

	ip netns add ns1		ip netns add ${NS1}
	ip netns add ns2		ip netns add ${NS2}

	ip link add veth1 index 111 type veth peer name veth11 netns ns1		ip link add veth1 index 111 type veth peer name veth11 netns ${NS1}
	ip link add veth2 index 222 type veth peer name veth22 netns ns2		ip link add veth2 index 222 type veth peer name veth22 netns ${NS2}

	ip link set veth1 up		ip link set veth1 up
	ip link set veth2 up		ip link set veth2 up
	ip -n ns1 link set dev veth11 up		ip -n ${NS1} link set dev veth11 up
	ip -n ns2 link set dev veth22 up		ip -n ${NS2} link set dev veth22 up

	ip -n ns1 addr add 10.1.1.11/24 dev veth11		ip -n ${NS1} addr add 10.1.1.11/24 dev veth11
	ip -n ns2 addr add 10.1.1.22/24 dev veth22		ip -n ${NS2} addr add 10.1.1.22/24 dev veth22
	}		}

	cleanup()		cleanup()
	{		{
	ip link del veth1 2> /dev/null		ip link del veth1 2> /dev/null
	ip link del veth2 2> /dev/null		ip link del veth2 2> /dev/null
	ip netns del ns1 2> /dev/null		ip netns del ${NS1} 2> /dev/null
	ip netns del ns2 2> /dev/null		ip netns del ${NS2} 2> /dev/null
	}		}

	test_xdp_redirect()		test_xdp_redirect()
	@@ -52,13 +54,13 @@ test_xdp_redirect()
	return 0		return 0
	fi		fi

	ip -n ns1 link set veth11 $xdpmode obj xdp_dummy.o sec xdp &> /dev/null		ip -n ${NS1} link set veth11 $xdpmode obj xdp_dummy.o sec xdp &> /dev/null
	ip -n ns2 link set veth22 $xdpmode obj xdp_dummy.o sec xdp &> /dev/null		ip -n ${NS2} link set veth22 $xdpmode obj xdp_dummy.o sec xdp &> /dev/null
	ip link set dev veth1 $xdpmode obj test_xdp_redirect.o sec redirect_to_222 &> /dev/null		ip link set dev veth1 $xdpmode obj test_xdp_redirect.o sec redirect_to_222 &> /dev/null
	ip link set dev veth2 $xdpmode obj test_xdp_redirect.o sec redirect_to_111 &> /dev/null		ip link set dev veth2 $xdpmode obj test_xdp_redirect.o sec redirect_to_111 &> /dev/null

	if ip netns exec ns1 ping -c 1 10.1.1.22 &> /dev/null &&		if ip netns exec ${NS1} ping -c 1 10.1.1.22 &> /dev/null &&
	ip netns exec ns2 ping -c 1 10.1.1.11 &> /dev/null; then		ip netns exec ${NS2} ping -c 1 10.1.1.11 &> /dev/null; then
	echo "selftests: test_xdp_redirect $xdpmode [PASS]";		echo "selftests: test_xdp_redirect $xdpmode [PASS]";
	else		else
	ret=1		ret=1

tools/testing/selftests/bpf/test_xdp_redirect_multi.sh

+31 −29

Original line number	Original line	Diff line number	Diff line
	@@ -32,6 +32,11 @@ DRV_MODE="xdpgeneric xdpdrv xdpegress"
	PASS=0		PASS=0
	FAIL=0		FAIL=0
	LOG_DIR=$(mktemp -d)		LOG_DIR=$(mktemp -d)
			declare -a NS
			NS[0]="ns0-$(mktemp -u XXXXXX)"
			NS[1]="ns1-$(mktemp -u XXXXXX)"
			NS[2]="ns2-$(mktemp -u XXXXXX)"
			NS[3]="ns3-$(mktemp -u XXXXXX)"

	test_pass()		test_pass()
	{		{
	@@ -47,11 +52,9 @@ test_fail()

	clean_up()		clean_up()
	{		{
	for i in $(seq $NUM); do		for i in $(seq 0 $NUM); do
	ip link del veth$i 2> /dev/null		ip netns del ${NS[$i]} 2> /dev/null
	ip netns del ns$i 2> /dev/null
	done		done
	ip netns del ns0 2> /dev/null
	}		}

	# Kselftest framework requirement - SKIP code is 4.		# Kselftest framework requirement - SKIP code is 4.
	@@ -79,23 +82,22 @@ setup_ns()
	mode="xdpdrv"		mode="xdpdrv"
	fi		fi

	ip netns add ns0		ip netns add ${NS[0]}
	for i in $(seq $NUM); do		for i in $(seq $NUM); do
	ip netns add ns$i		ip netns add ${NS[$i]}
	ip -n ns$i link add veth0 index 2 type veth \		ip -n ${NS[$i]} link add veth0 type veth peer name veth$i netns ${NS[0]}
	peer name veth$i netns ns0 index $((1 + $i))		ip -n ${NS[$i]} link set veth0 up
	ip -n ns0 link set veth$i up		ip -n ${NS[0]} link set veth$i up
	ip -n ns$i link set veth0 up
			ip -n ${NS[$i]} addr add 192.0.2.$i/24 dev veth0
	ip -n ns$i addr add 192.0.2.$i/24 dev veth0		ip -n ${NS[$i]} addr add 2001:db8::$i/64 dev veth0
	ip -n ns$i addr add 2001:db8::$i/64 dev veth0
	# Add a neigh entry for IPv4 ping test		# Add a neigh entry for IPv4 ping test
	ip -n ns$i neigh add 192.0.2.253 lladdr 00:00:00:00:00:01 dev veth0		ip -n ${NS[$i]} neigh add 192.0.2.253 lladdr 00:00:00:00:00:01 dev veth0
	ip -n ns$i link set veth0 $mode obj \		ip -n ${NS[$i]} link set veth0 $mode obj \
	xdp_dummy.o sec xdp &> /dev/null \|\| \		xdp_dummy.o sec xdp &> /dev/null \|\| \
	{ test_fail "Unable to load dummy xdp" && exit 1; }		{ test_fail "Unable to load dummy xdp" && exit 1; }
	IFACES="$IFACES veth$i"		IFACES="$IFACES veth$i"
	veth_mac[$i]=$(ip -n ns0 link show veth$i \| awk '/link\/ether/ {print $2}')		veth_mac[$i]=$(ip -n ${NS[0]} link show veth$i \| awk '/link\/ether/ {print $2}')
	done		done
	}		}

	@@ -104,10 +106,10 @@ do_egress_tests()
	local mode=$1		local mode=$1

	# mac test		# mac test
	ip netns exec ns2 tcpdump -e -i veth0 -nn -l -e &> ${LOG_DIR}/mac_ns1-2_${mode}.log &		ip netns exec ${NS[2]} tcpdump -e -i veth0 -nn -l -e &> ${LOG_DIR}/mac_ns1-2_${mode}.log &
	ip netns exec ns3 tcpdump -e -i veth0 -nn -l -e &> ${LOG_DIR}/mac_ns1-3_${mode}.log &		ip netns exec ${NS[3]} tcpdump -e -i veth0 -nn -l -e &> ${LOG_DIR}/mac_ns1-3_${mode}.log &
	sleep 0.5		sleep 0.5
	ip netns exec ns1 ping 192.0.2.254 -i 0.1 -c 4 &> /dev/null		ip netns exec ${NS[1]} ping 192.0.2.254 -i 0.1 -c 4 &> /dev/null
	sleep 0.5		sleep 0.5
	pkill tcpdump		pkill tcpdump

	@@ -123,18 +125,18 @@ do_ping_tests()
	local mode=$1		local mode=$1

	# ping6 test: echo request should be redirect back to itself, not others		# ping6 test: echo request should be redirect back to itself, not others
	ip netns exec ns1 ip neigh add 2001:db8::2 dev veth0 lladdr 00:00:00:00:00:02		ip netns exec ${NS[1]} ip neigh add 2001:db8::2 dev veth0 lladdr 00:00:00:00:00:02

	ip netns exec ns1 tcpdump -i veth0 -nn -l -e &> ${LOG_DIR}/ns1-1_${mode}.log &		ip netns exec ${NS[1]} tcpdump -i veth0 -nn -l -e &> ${LOG_DIR}/ns1-1_${mode}.log &
	ip netns exec ns2 tcpdump -i veth0 -nn -l -e &> ${LOG_DIR}/ns1-2_${mode}.log &		ip netns exec ${NS[2]} tcpdump -i veth0 -nn -l -e &> ${LOG_DIR}/ns1-2_${mode}.log &
	ip netns exec ns3 tcpdump -i veth0 -nn -l -e &> ${LOG_DIR}/ns1-3_${mode}.log &		ip netns exec ${NS[3]} tcpdump -i veth0 -nn -l -e &> ${LOG_DIR}/ns1-3_${mode}.log &
	sleep 0.5		sleep 0.5
	# ARP test		# ARP test
	ip netns exec ns1 arping -q -c 2 -I veth0 192.0.2.254		ip netns exec ${NS[1]} arping -q -c 2 -I veth0 192.0.2.254
	# IPv4 test		# IPv4 test
	ip netns exec ns1 ping 192.0.2.253 -i 0.1 -c 4 &> /dev/null		ip netns exec ${NS[1]} ping 192.0.2.253 -i 0.1 -c 4 &> /dev/null
	# IPv6 test		# IPv6 test
	ip netns exec ns1 ping6 2001:db8::2 -i 0.1 -c 2 &> /dev/null		ip netns exec ${NS[1]} ping6 2001:db8::2 -i 0.1 -c 2 &> /dev/null
	sleep 0.5		sleep 0.5
	pkill tcpdump		pkill tcpdump

	@@ -180,7 +182,7 @@ do_tests()
	xdpgeneric) drv_p="-S";;		xdpgeneric) drv_p="-S";;
	esac		esac

	ip netns exec ns0 ./xdp_redirect_multi $drv_p $IFACES &> ${LOG_DIR}/xdp_redirect_${mode}.log &		ip netns exec ${NS[0]} ./xdp_redirect_multi $drv_p $IFACES &> ${LOG_DIR}/xdp_redirect_${mode}.log &
	xdp_pid=$!		xdp_pid=$!
	sleep 1		sleep 1
	if ! ps -p $xdp_pid > /dev/null; then		if ! ps -p $xdp_pid > /dev/null; then
	@@ -197,10 +199,10 @@ do_tests()
	kill $xdp_pid		kill $xdp_pid
	}		}

	trap clean_up EXIT

	check_env		check_env

			trap clean_up EXIT

	for mode in ${DRV_MODE}; do		for mode in ${DRV_MODE}; do
	setup_ns $mode		setup_ns $mode
	do_tests $mode		do_tests $mode