mirror of
https://git.minetest.land/VoxeLibre/VoxeLibre.git
synced 2024-11-16 16:11:06 +01:00
61 lines
2 KiB
Text
61 lines
2 KiB
Text
|
#!/bin/sh -eu
|
|||
|
|
# analyze-packet-spam – show minetest client packet count per second
|
|||
|
|
# Copyright © 2021 Nils Dagsson Moskopp (erlehmann)
|
|||
|
|
|
|||
|
|
# This program is free software: you can redistribute it and/or modify
|
|||
|
|
# it under the terms of the GNU Affero General Public License as
|
|||
|
|
# published by the Free Software Foundation, either version 3 of the
|
|||
|
|
# License, or (at your option) any later version.
|
|||
|
|
|
|||
|
|
# Dieses Programm hat das Ziel, die Medienkompetenz der Leser zu
|
|||
|
|
# steigern. Gelegentlich packe ich sogar einen handfesten Buffer
|
|||
|
|
# Overflow oder eine Format String Vulnerability zwischen die anderen
|
|||
|
|
# Codezeilen und schreibe das auch nicht dran.
|
|||
|
|
|
|||
|
|
# This script takes a minetest log with at least INFO log level and
|
|||
|
|
# outputs the MINETEST network protocol packet count per second.
|
|||
|
|
|
|||
|
|
# To collect such a log file of minetest running for 10 minutes, run:
|
|||
|
|
# timeout 600 minetest --info >log.txt 2>&1 >/dev/null
|
|||
|
|
|
|||
|
|
# To get packet counts from that file, run:
|
|||
|
|
# ./analyze-packet-spam <log.txt
|
|||
|
|
|
|||
|
|
TEMPFILE=$(mktemp /tmp/minetest.analyze-packet-spam.XXXXXXXX)
|
|||
|
|
|
|||
|
|
grep -F 'INFO[Main]: cmd' \
|
|||
|
|
|while read DATE TIME _ _ PACKET_ID PACKET_NAME _ PACKET_COUNT; do
|
|||
|
|
TIMESTAMP=$(date +%s --date "${DATE} ${TIME%:}")
|
|||
|
|
PACKET_NAME=${PACKET_NAME#(}
|
|||
|
|
PACKET_NAME=${PACKET_NAME%)}
|
|||
|
|
VARIABLE=PACKET_COUNT_"${PACKET_NAME}"
|
|||
|
|
eval "$( echo $VARIABLE=\$\(\( \${$VARIABLE:-0} + ${PACKET_COUNT} \)\) )"
|
|||
|
|
printf '%s ' \
|
|||
|
|
"${TIMESTAMP}" \
|
|||
|
|
"${VARIABLE}"
|
|||
|
|
eval echo \$${VARIABLE}
|
|||
|
|
done >"${TEMPFILE}"
|
|||
|
|
|
|||
|
|
TIMESTAMP_START=$( <"${TEMPFILE}" head -n1 |cut -d' ' -f1 )
|
|||
|
|
TIMESTAMP_END=$( <"${TEMPFILE}" tail -n1 |cut -d' ' -f1 )
|
|||
|
|
DURATION=$(( 30 + ${TIMESTAMP_END} - ${TIMESTAMP_START} ))
|
|||
|
|
|
|||
|
|
PACKET_NAME_SEEN=''
|
|||
|
|
<"${TEMPFILE}" tac \
|
|||
|
|
|while read _ PACKET_NAME PACKET_COUNT; do
|
|||
|
|
case "${PACKET_NAME_SEEN}" in
|
|||
|
|
*"${PACKET_NAME}"*)
|
|||
|
|
;;
|
|||
|
|
*)
|
|||
|
|
PACKET_COUNT_PER_SECOND=$(
|
|||
|
|
printf '1k %s %s /p' "${PACKET_COUNT}" "${DURATION}" \
|
|||
|
|
|dc
|
|||
|
|
)
|
|||
|
|
printf '%s\t%s\n' "${PACKET_COUNT_PER_SECOND}" "${PACKET_NAME}"
|
|||
|
|
PACKET_NAME_SEEN="${PACKET_NAME_SEEN} ${PACKET_NAME}"
|
|||
|
|
;;
|
|||
|
|
esac
|
|||
|
|
done
|
|||
|
|
|
|||
|
|
unlink "${TEMPFILE}"
|