113 lines
3.1 KiB
Bash
Executable File
113 lines
3.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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REALPATH="$(realpath $0)"
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BASEDIR="${REALPATH%/*}"
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mkdir -p "$BASEDIR/var"
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mkdir -p "$BASEDIR/etc"
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CONFFILE="$BASEDIR/etc/tunnels.conf"
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if [[ ! -f "$CONFFILE" ]]; then
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echo "Config file \"$CONFFILE\" does not exist"
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exit 1
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fi
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function ruroot () {
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if [[ $UID -ne 0 ]]; then
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echo "You must be root to do this"
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exit
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fi
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}
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case "$1" in
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FORKSTART )
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# if [[ "${2}" == "COUNTLOOPPROCESS" ]]; then # This process loops and keeps the service active
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# while true; do
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# if [[ $(find "$BASEDIR/var/" -name '*.connected' | wc -l) -eq 0 ]]; then
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# rm "$BASEDIR/var/tunnelkeeper.pid"
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# else
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# echo $$ > "$BASEDIR/var/tunnelkeeper.pid"
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# fi
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# sleep 10
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# done
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# else # This process connects the tunnel
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# touch "$BASEDIR/var/${2}.connected"
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# while [[ -e "$BASEDIR/var/${2}.connected" ]]; do
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# ssh -F $CONFFILE -N $2 &> /dev/null
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# sleep 5
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# done
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# fi
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touch "$BASEDIR/var/${2}.connected"
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while [[ -e "$BASEDIR/var/${2}.connected" ]]; do
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ssh -F $CONFFILE -N $2 &> /dev/null
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sleep 5
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done
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;;
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FORKKILL )
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kill $(sudo netstat -tnlp | grep "127.0.0.1:${2}" | grep -o '[0-9]*/ssh' | grep -o '[0-9]*') &>/dev/null
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;;
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FORKDEL )
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rm "$BASEDIR/var/${2}.connected"
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;;
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start)
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if [[ -e "$BASEDIR/var/tunnelkeeper.pid" ]]; then
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exit
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fi
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echo $$ > "$BASEDIR/var/tunnelkeeper.pid"
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cat "$CONFFILE" | awk '/^Host ' | xargs -I% -P0 $0 FORKSTART % &>/dev/null &
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;;
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stop)
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rm "$BASEDIR/var/tunnelkeeper.pid"
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cat "$CONFFILE" | awk '/^Host / {print $2}' | sed 's/^Host //' | xargs -I% -P0 $0 FORKDEL %
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cat "$CONFFILE" | grep -o 'LocalForward [0-9]* ' | grep -o '[0-9]*' | xargs -I% -P0 $0 FORKKILL % &>/dev/null
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;;
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install )
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ruroot
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mkdir -p /opt/tunnelkeeper/var
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mkdir -p /opt/tunnelkeeper/etc
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if [[ -f "$BASEDIR/etc/tunnels.conf" ]]; then
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cp "$BASEDIR/etc/tunnels.conf" /opt/tunnelkeeper/etc
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fi
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cp "$REALPATH" "/opt/tunnelkeeper/tunnelkeeper"
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ln -s /opt/tunnelkeeper/tunnelkeeper.sh /usr/local/bin/tunnelkeeper
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echo "[Unit]
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Description=TunnelKeeper keeps SSH tunnels open.
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After=network.target
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[Service]
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User=root
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Group=root
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Type=forking
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ExecStart=/opt/tunnelkeeper/tunnelkeeper start
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ExecStop=/opt/tunnelkeeper/tunnelkeeper stop
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RestartSec=15
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Restart=always
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[Install]
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WantedBy=multi-user.target" >> /lib/systemd/system/tunnelkeeper.service
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systemctl daemon-reload
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systemctl enable tunnelkeeper.service
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echo -e "\nTunnelKeeper service installed.\n"
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;;
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uninstall )
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ruroot
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rm /usr/local/bin/tunnelkeeper
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rm /lib/systemd/system/tunnelkeeper.service
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systemctl enable tunnelkeeper.service
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systemctl daemon-reload
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rm -rf /opt/tunnelkeeper
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echo -e "\nTunnelKeeper service uninstalled.\n"
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;;
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list )
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echo "---"
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find "$BASEDIR/var/" -name '*.connected' | sed 's/^.*\///g; s/\.connected//g'
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echo "---"
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;;
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config )
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ruroot
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vi "$CONFFILE"
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;;
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* )
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echo -e "\nUsage: $(basename $0) [start|stop|install|uninstall|config|list]\n"
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;;
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esac
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