mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-06 02:50:43 +00:00
![Paolo Pisati](/assets/img/avatar_default.png)
According to 'man 8 ip-netns', if `ip netns identify` returns an empty string, there's no net namespace associated with current PID: fix the net ns entrance logic. Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
82 lines
1.7 KiB
Bash
Executable file
82 lines
1.7 KiB
Bash
Executable file
#!/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
|