83 lines
1.7 KiB
Bash
83 lines
1.7 KiB
Bash
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# Send packets with transmit timestamps over loopback with netem
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# Verify that timestamps correspond to netem delay
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set -e
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setup() {
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# set 1ms delay on lo egress
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tc qdisc add dev lo root netem delay 1ms
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# set 2ms delay on ifb0 egress
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modprobe ifb
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ip link add ifb_netem0 type ifb
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ip link set dev ifb_netem0 up
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tc qdisc add dev ifb_netem0 root netem delay 2ms
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# redirect lo ingress through ifb0 egress
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tc qdisc add dev lo handle ffff: ingress
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tc filter add dev lo parent ffff: \
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u32 match mark 0 0xffff \
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action mirred egress redirect dev ifb_netem0
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}
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run_test_v4v6() {
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# SND will be delayed 1000us
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# ACK will be delayed 6000us: 1 + 2 ms round-trip
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local -r args="$@ -v 1000 -V 6000"
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./txtimestamp ${args} -4 -L 127.0.0.1
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./txtimestamp ${args} -6 -L ::1
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}
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run_test_tcpudpraw() {
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local -r args=$@
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run_test_v4v6 ${args} # tcp
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run_test_v4v6 ${args} -u # udp
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run_test_v4v6 ${args} -r # raw
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run_test_v4v6 ${args} -R # raw (IPPROTO_RAW)
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run_test_v4v6 ${args} -P # pf_packet
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}
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run_test_all() {
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setup
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run_test_tcpudpraw # setsockopt
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run_test_tcpudpraw -C # cmsg
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run_test_tcpudpraw -n # timestamp w/o data
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echo "OK. All tests passed"
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}
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run_test_one() {
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setup
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./txtimestamp $@
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}
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usage() {
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echo "Usage: $0 [ -r | --run ] <txtimestamp args> | [ -h | --help ]"
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echo " (no args) Run all tests"
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echo " -r|--run Run an individual test with arguments"
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echo " -h|--help Help"
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}
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main() {
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if [[ $# -eq 0 ]]; then
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run_test_all
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else
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if [[ "$1" = "-r" || "$1" == "--run" ]]; then
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shift
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run_test_one $@
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else
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usage
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fi
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fi
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}
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if [[ -z "$(ip netns identify)" ]]; then
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./in_netns.sh $0 $@
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else
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main $@
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fi
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