FM / net

/usr/src/linux-headers-5.15.0-190/tools/testing/selftests/net/

/usr/src/linux-headers-5.15.0-190/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-5.15.0-190/tools/testing/selftests/net/txtimestamp.sh (1702B)

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Send packets with transmit timestamps over loopback with netem
# Verify that timestamps correspond to netem delay

set -e

setup() {
	# set 1ms delay on lo egress
	tc qdisc add dev lo root netem delay 1ms

# set 2ms delay on ifb0 egress
	modprobe ifb
	ip link add ifb_netem0 type ifb
	ip link set dev ifb_netem0 up
	tc qdisc add dev ifb_netem0 root netem delay 2ms

# redirect lo ingress through ifb0 egress
	tc qdisc add dev lo handle ffff: ingress
	tc filter add dev lo parent ffff: \
		u32 match mark 0 0xffff \
		action mirred egress redirect dev ifb_netem0
}

run_test_v4v6() {
	# SND will be delayed 1000us
	# ACK will be delayed 6000us: 1 + 2 ms round-trip
	local -r args="$@ -v 1000 -V 6000"

./txtimestamp ${args} -4 -L 127.0.0.1
	./txtimestamp ${args} -6 -L ::1
}

run_test_tcpudpraw() {
	local -r args=$@

run_test_v4v6 ${args}		# tcp
	run_test_v4v6 ${args} -u	# udp
	run_test_v4v6 ${args} -r	# raw
	run_test_v4v6 ${args} -R	# raw (IPPROTO_RAW)
	run_test_v4v6 ${args} -P	# pf_packet
}

run_test_all() {
	setup
	run_test_tcpudpraw		# setsockopt
	run_test_tcpudpraw -C		# cmsg
	run_test_tcpudpraw -n		# timestamp w/o data
	echo "OK. All tests passed"
}

run_test_one() {
	setup
	./txtimestamp $@
}

usage() {
	echo "Usage: $0 [ -r | --run ] <txtimestamp args> | [ -h | --help ]"
	echo "  (no args)  Run all tests"
	echo "  -r|--run  Run an individual test with arguments"
	echo "  -h|--help Help"
}

main() {
	if [[ $# -eq 0 ]]; then
		run_test_all
	else
		if [[ "$1" = "-r" || "$1" == "--run" ]]; then
			shift
			run_test_one $@
		else
			usage
		fi
	fi
}

if [[ -z "$(ip netns identify)" ]]; then
	./in_netns.sh $0 $@
else
	main $@
fi

cmd: