mirror of
https://github.com/uhi22/pyPLC.git
synced 2024-09-11 00:38:29 +00:00
75 lines
2.3 KiB
Bash
Executable file
75 lines
2.3 KiB
Bash
Executable file
#!/bin/bash
|
|
|
|
# Function to start tcpdump
|
|
start_tcpdump() {
|
|
INTERFACE="eth0" # Change this to the interface you want to monitor
|
|
OUTPUT_FILE="$1"
|
|
tcpdump -i "$INTERFACE" -w "$OUTPUT_FILE" &> /dev/null &
|
|
TCPDUMP_PID=$!
|
|
echo "Started tcpdump with PID $TCPDUMP_PID on interface $INTERFACE, output file: $OUTPUT_FILE"
|
|
}
|
|
# Function to stop tcpdump
|
|
stop_tcpdump() {
|
|
if [ ! -z "$TCPDUMP_PID" ]; then
|
|
echo "Stopping tcpdump with PID $TCPDUMP_PID"
|
|
kill -SIGINT "$TCPDUMP_PID"
|
|
fi
|
|
}
|
|
# Function to handle signals
|
|
signal_handler() {
|
|
echo "Caught signal, stopping tcpdump and exiting..."
|
|
stop_tcpdump
|
|
exit 1
|
|
}
|
|
# Set trap for signals: SIGINT (2), SIGTERM (15)
|
|
trap 'signal_handler' 2 15
|
|
|
|
# Todo: explain this
|
|
set -euv
|
|
|
|
# Keep all IPv6 addresses on the interface down event.
|
|
# Todo: flexible interface name.
|
|
# Todo: On raspberry, without NetworkManager, this option does not help. After the down and up (see below), the IPv6 is missing.
|
|
sysctl net.ipv6.conf.eth0.keep_addr_on_down=1
|
|
|
|
# Shut down and activate the interface.
|
|
# Todo: Why this needed? On raspberry, where the NetworkManager is not runnning, this disturbs, because
|
|
# afterwards the pyPlc does not see the interfaces IPv6 address.
|
|
# ip link set eth0 down
|
|
sleep 1
|
|
# ip link set eth0 up
|
|
sleep 1
|
|
|
|
# show the addresses
|
|
ip addr
|
|
|
|
# todo: flexible path name
|
|
mkdir -p /home/pi/myprogs/pyPLC/log
|
|
# prepare the file names for the log files
|
|
date=$(date "+%Y-%m-%d_%H%M%S")
|
|
logfile=/home/pi/myprogs/pyPLC/log/"$date"_pevNoGui.log
|
|
tcpdump_logfile=/home/pi/myprogs/pyPLC/log/"$date"_tcpdump.pcap
|
|
|
|
echo "logfile: $logfile"
|
|
echo "tcpdump_logfile: $tcpdump_logfile"
|
|
|
|
# start the tcpdump
|
|
start_tcpdump "$tcpdump_logfile"
|
|
|
|
echo "$date" >> "$logfile"
|
|
git log --oneline -1 >> "$logfile" || echo "Not a git repo" >> "$logfile"
|
|
ip addr >> "$logfile"
|
|
pwd >> "$logfile"
|
|
# Todo: flexible path name
|
|
cd /home/pi/myprogs/pyPLC/
|
|
#/usr/bin/python3 /home/user/projects/pyPLC/pevNoGui.py | tee -a "$logfile"
|
|
#stdbuf -oL -eL /usr/bin/python3 /home/user/projects/pyPLC/pevNoGui.py | tee -a "$logfile"
|
|
#PYTHONUNBUFFERED=1 /usr/bin/python3 /home/user/projects/pyPLC/pevNoGui.py | stdbuf -oL -eL tee -a "$logfile"
|
|
PYTHONUNBUFFERED=1 /usr/bin/python3 /home/pi/myprogs/pyPLC/pevNoGui.py | tee -a "$logfile"
|
|
pwd >> "$logfile"
|
|
date >> "$logfile"
|
|
|
|
# Stop the tcpdump when the pyPLC stopped:
|
|
stop_tcpdump
|
|
|