mirror of
https://github.com/systemd/systemd.git
synced 2024-12-25 01:34:28 +03:00
49 lines
1.0 KiB
Bash
Executable File
49 lines
1.0 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# SPDX-License-Identifier: LGPL-2.1-or-later
|
|
set -eux
|
|
set -o pipefail
|
|
|
|
systemd-analyze log-level debug
|
|
|
|
cat > /run/systemd/system/floodme@.service <<EOF
|
|
[Service]
|
|
ExecStart=/bin/true
|
|
EOF
|
|
|
|
cat > /run/systemd/system/floodme.socket <<EOF
|
|
[Socket]
|
|
ListenStream=/tmp/floodme
|
|
PollLimitIntervalSec=10s
|
|
Accept=yes
|
|
PollLimitBurst=3
|
|
EOF
|
|
|
|
systemctl daemon-reload
|
|
systemctl start floodme.socket
|
|
|
|
START=$(date +%s%N)
|
|
|
|
# Trigger this 100 times in a flood
|
|
for (( i=0 ; i < 100; i++ )) ; do
|
|
logger -u /tmp/floodme foo &
|
|
done
|
|
|
|
# Let some time pass
|
|
sleep 5
|
|
|
|
END=$(date +%s%N)
|
|
|
|
PASSED=$((END-START))
|
|
|
|
# Calculate (round up) how many trigger events could have happened in the passed time
|
|
MAXCOUNT=$(((PASSED+10000000000)*3/10000000000))
|
|
|
|
# We started 100 connection attempts, but only 3 should have gone through, as per limit
|
|
test "$(systemctl show -P NAccepted floodme.socket)" -le "$MAXCOUNT"
|
|
|
|
systemctl stop floodme.socket floodme@*.service
|
|
|
|
rm /run/systemd/system/floodme@.service /run/systemd/system/floodme.socket /tmp/floodme
|
|
|
|
systemctl daemon-reload
|