FM / net

/usr/src/linux-headers-5.15.0-181/tools/testing/selftests/net/

/usr/src/linux-headers-5.15.0-181/tools/testing/selftests/net

Name	Size	Mode	Actions
af_unix/	-	0755	rm
forwarding/	-	0755	rm
mptcp/	-	0755	rm
altnames.sh	1817	0755	edit dl rm
bareudp.sh	21290	0755	edit dl rm
drop_monitor_tests.sh	4439	0755	edit dl rm
fcnal-test.sh	103221	0755	edit dl rm
fib-onlink-tests.sh	12409	0755	edit dl rm
fib_nexthops.sh	68003	0755	edit dl rm
fib_nexthop_multiprefix.sh	5870	0755	edit dl rm
fib_nexthop_nongw.sh	2327	0755	edit dl rm
fib_rule_tests.sh	5981	0755	edit dl rm
fib_tests.sh	57224	0755	edit dl rm
fin_ack_lat.sh	507	0755	edit dl rm
gre_gso.sh	4237	0755	edit dl rm
gro.sh	2132	0755	edit dl rm
icmp.sh	2618	0755	edit dl rm
icmp_redirect.sh	12820	0755	edit dl rm
in_netns.sh	323	0755	edit dl rm
ioam6.sh	25962	0755	edit dl rm
ip6_gre_headroom.sh	1400	0755	edit dl rm
ipv6_flowlabel.sh	502	0755	edit dl rm
ip_defrag.sh	2087	0755	edit dl rm
l2tp.sh	9909	0755	edit dl rm
lib.sh	597	0644	edit dl rm
Makefile	2499	0644	edit dl rm
msg_zerocopy.sh	3012	0755	edit dl rm
netdevice.sh	4521	0755	edit dl rm
net_helper.sh	514	0644	edit dl rm
pmtu.sh	74711	0755	edit dl rm
psock_snd.sh	2252	0755	edit dl rm
reuseaddr_ports_exhausted.sh	635	0755	edit dl rm
reuseport_addr_any.sh	81	0755	edit dl rm
route_localnet.sh	1871	0755	edit dl rm
rtnetlink.sh	29476	0755	edit dl rm
rxtimestamp.sh	79	0755	edit dl rm
setup_loopback.sh	2654	0644	edit dl rm
setup_veth.sh	929	0644	edit dl rm
so_txtime.sh	2434	0755	edit dl rm
srv6_end_dt4_l3vpn_test.sh	17454	0755	edit dl rm
srv6_end_dt6_l3vpn_test.sh	17615	0755	edit dl rm
srv6_end_dt46_l3vpn_test.sh	21121	0755	edit dl rm
tcp_fastopen_backup_key.sh	1086	0755	edit dl rm
test_blackhole_dev.sh	280	0755	edit dl rm
test_bpf.sh	225	0755	edit dl rm
test_vxlan_fdb_changelink.sh	678	0755	edit dl rm
test_vxlan_under_vrf.sh	5607	0755	edit dl rm
toeplitz.sh	4983	0755	edit dl rm
toeplitz_client.sh	667	0755	edit dl rm
traceroute.sh	7131	0755	edit dl rm
txtimestamp.sh	1702	0755	edit dl rm
udpgro.sh	5988	0755	edit dl rm
udpgro_bench.sh	2126	0755	edit dl rm
udpgro_fwd.sh	7145	0755	edit dl rm
udpgso.sh	545	0755	edit dl rm
udpgso_bench.sh	2852	0755	edit dl rm
unicast_extensions.sh	8263	0755	edit dl rm
veth.sh	10441	0755	edit dl rm
vrf-xfrm-tests.sh	10970	0755	edit dl rm
vrf_route_leaking.sh	14946	0755	edit dl rm
vrf_strict_mode_test.sh	7688	0755	edit dl rm
xfrm_policy.sh	14759	0755	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-181/tools/testing/selftests/net/udpgro.sh (5988B)

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Run a series of udpgro functional tests.

source net_helper.sh

readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"

# set global exit status, but never reset nonzero one.
check_err()
{
	if [ $ret -eq 0 ]; then
		ret=$1
	fi
}

cleanup() {
	local -r jobs="$(jobs -p)"
	local -r ns="$(ip netns list|grep $PEER_NS)"

[ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null
	[ -n "$ns" ] && ip netns del $ns 2>/dev/null
}
trap cleanup EXIT

cfg_veth() {
	ip netns add "${PEER_NS}"
	ip -netns "${PEER_NS}" link set lo up
	ip link add type veth
	ip link set dev veth0 up
	ip addr add dev veth0 192.168.1.2/24
	ip addr add dev veth0 2001:db8::2/64 nodad

ip link set dev veth1 netns "${PEER_NS}"
	ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24
	ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
	ip -netns "${PEER_NS}" link set dev veth1 up
	ip -n "${PEER_NS}" link set veth1 xdp object ../bpf/xdp_dummy.o section xdp
}

run_one() {
	# use 'rx' as separator between sender args and receiver args
	local -r all="$@"
	local -r tx_args=${all%rx*}
	local -r rx_args=${all#*rx}
	local ret=0

cfg_veth

ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 100 ${rx_args} &
	local PID1=$!

wait_local_port_listen ${PEER_NS} 8000 udp
	./udpgso_bench_tx ${tx_args}
	check_err $?
	wait ${PID1}
	check_err $?
	[ "$ret" -eq 0 ] && echo "ok" || echo "failed"
	return $ret
}

run_test() {
	local -r args=$@

printf " %-40s" "$1"
	./in_netns.sh $0 __subprocess $2 rx -G -r $3
}

run_one_nat() {
	# use 'rx' as separator between sender args and receiver args
	local addr1 addr2 pid family="" ipt_cmd=ip6tables
	local -r all="$@"
	local -r tx_args=${all%rx*}
	local -r rx_args=${all#*rx}
	local ret=0

if [[ ${tx_args} = *-4* ]]; then
		ipt_cmd=iptables
		family=-4
		addr1=192.168.1.1
		addr2=192.168.1.3/24
	else
		addr1=2001:db8::1
		addr2="2001:db8::3/64 nodad"
	fi

cfg_veth
	ip -netns "${PEER_NS}" addr add dev veth1 ${addr2}

# fool the GRO engine changing the destination address ...
	ip netns exec "${PEER_NS}" $ipt_cmd -t nat -I PREROUTING -d ${addr1} -j DNAT --to-destination ${addr2%/*}

# ... so that GRO will match the UDP_GRO enabled socket, but packets
	# will land on the 'plain' one
	ip netns exec "${PEER_NS}" ./udpgso_bench_rx -G ${family} -b ${addr1} -n 0 &
	local PID1=$!
	ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 100 ${family} -b ${addr2%/*} ${rx_args} &
	local PID2=$!

wait_local_port_listen "${PEER_NS}" 8000 udp
	./udpgso_bench_tx ${tx_args}
	check_err $?
	kill -INT ${PID1}
	wait ${PID2}
	check_err $?
	[ "$ret" -eq 0 ] && echo "ok" || echo "failed"
	return $ret
}

run_one_2sock() {
	# use 'rx' as separator between sender args and receiver args
	local -r all="$@"
	local -r tx_args=${all%rx*}
	local -r rx_args=${all#*rx}
	local ret=0

cfg_veth

ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 100 ${rx_args} -p 12345 &
	local PID1=$!
	ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 2000 -R 100 ${rx_args} &
	local PID2=$!

wait_local_port_listen "${PEER_NS}" 12345 udp
	./udpgso_bench_tx ${tx_args} -p 12345
	check_err $?
	wait_local_port_listen "${PEER_NS}" 8000 udp
	./udpgso_bench_tx ${tx_args}
	check_err $?
	wait ${PID1}
	check_err $?
	wait ${PID2}
	check_err $?
	[ "$ret" -eq 0 ] && echo "ok" || echo "failed"
	return $ret
}

run_nat_test() {
	local -r args=$@

printf " %-40s" "$1"
	./in_netns.sh $0 __subprocess_nat $2 rx -r $3
}

run_2sock_test() {
	local -r args=$@

printf " %-40s" "$1"
	./in_netns.sh $0 __subprocess_2sock $2 rx -G -r $3
}

run_all() {
	local -r core_args="-l 4"
	local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
	local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
	ret=0

echo "ipv4"
	run_test "no GRO" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400"
	check_err $?

# explicitly check we are not receiving UDP_SEGMENT cmsg (-S -1)
	# when GRO does not take place
	run_test "no GRO chk cmsg" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400 -S -1"
	check_err $?

# the GSO packets are aggregated because:
	# * veth schedule napi after each xmit
	# * segmentation happens in BH context, veth napi poll is delayed after
	#   the transmission of the last segment
	run_test "GRO" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720"
	check_err $?
	run_test "GRO chk cmsg" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
	check_err $?
	run_test "GRO with custom segment size" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720"
	check_err $?
	run_test "GRO with custom segment size cmsg" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720 -S 500"
	check_err $?

run_nat_test "bad GRO lookup" "${ipv4_args} -M 1 -s 14720 -S 0" "-n 10 -l 1472"
	check_err $?
	run_2sock_test "multiple GRO socks" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
	check_err $?

echo "ipv6"
	run_test "no GRO" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400"
	check_err $?
	run_test "no GRO chk cmsg" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400 -S -1"
	check_err $?
	run_test "GRO" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520"
	check_err $?
	run_test "GRO chk cmsg" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520 -S 1452"
	check_err $?
	run_test "GRO with custom segment size" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520"
	check_err $?
	run_test "GRO with custom segment size cmsg" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520 -S 500"
	check_err $?

run_nat_test "bad GRO lookup" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 10 -l 1452"
	check_err $?
	run_2sock_test "multiple GRO socks" "${ipv6_args} -M 1 -s 14520 -S 0 " "-n 1 -l 14520 -S 1452"
	check_err $?
	return $ret
}

if [ ! -f ../bpf/xdp_dummy.o ]; then
	echo "Missing xdp_dummy helper. Build bpf selftest first"
	exit -1
fi

if [[ $# -eq 0 ]]; then
	run_all
elif [[ $1 == "__subprocess" ]]; then
	shift
	run_one $@
elif [[ $1 == "__subprocess_nat" ]]; then
	shift
	run_one_nat $@
elif [[ $1 == "__subprocess_2sock" ]]; then
	shift
	run_one_2sock $@
fi

exit $?

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