ANSWERED Start AirVPN at Boot - Raspbian

[irishtechnomonster 1]

I want to auto start airvpn cli at boot time (with network lock enabled) and have it connect to server using a specified configuration file on a rasbian system.

 

I've spent 2 full days trying to figure it out myself but I'm at my wits end now!! 

 

I'd really appreciate if someone could explain to me in detail how I can do this. I'm new to linux and struggling with the complexity of this task!

 

Thanks!

[irishtechnomonster 1]

For the benefit of anyone else who might be trying to do this, here is how I managed to do it.

 

Create script file (see notes for template):

 

     sudo nano /etc/init.d/airvpn

 

Make script file executable:

 

     sudo chmod +x /etc/init.d/airvpn

 

Add service: 

 

     sudo update-rc.d airvpn defaults

 

Remove Service:

 

     sudo update-rc.d -f airvpn remove

 

Notes:

 

Template for script file: https://github.com/fhd/init-script-template

 

Below is my modification of the template above which restores the iptables to what they were previously after airvpn changes them with the network lock. There is probably a better way to do this but it's the best I could come up with!

 

#!/bin/sh
### BEGIN INIT INFO
# Provides:          airvpn
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start daemon at boot time
# Description:       Enable service provided by daemon.
### END INIT INFO

dir="/usr/lib/AirVPN"
cmd="airvpn -cli -login=irishtechnomonster -password=mypass -netl$
user=""

name=`basename $0`
pid_file="/var/run/$name.pid"
stdout_log="/var/log/$name.log"
stderr_log="/var/log/$name.err"

get_pid() {
    cat "$pid_file"
}

is_running() {
    [ -f "$pid_file" ] && ps `get_pid` > /dev/null 2>&1
}

restore_iptables() {
    ipv4="/root/.airvpn/iptables.dat"
    if [ -f $ipv4 ]; then
        iptables -F
        iptables -t nat -F
        iptables -t mangle -F
        iptables-restore <$ipv4
        echo "Default IPv4 tables restored"
    else
        echo "Default IPv4 tables not found!"
    fi
}

reset_iptables() {
    if is_running; then
        echo "AirVPN must be stopped to reset iptables."
    else
        iptables --policy INPUT   ACCEPT;
        iptables --policy OUTPUT  ACCEPT;
        iptables --policy FORWARD ACCEPT;
        iptables -Z;
        iptables -F;
        iptables -X;
        echo "iptables reset"
    fi
}

case "$1" in
    start)
    if is_running; then
        echo "Already started"
    else
        echo "Starting $name"
        cd "$dir"
        if [ -z "$user" ]; then
            sudo $cmd >> "$stdout_log" 2>> "$stderr_log" &
        else
            sudo -u "$user" $cmd >> "$stdout_log" 2>> "$stderr_log" &
        fi
        echo $! > "$pid_file"
        if ! is_running; then
            echo "Unable to start, see $stdout_log and $stderr_log"
            exit 1
        fi
    fi
    ;;
    stop)
    if is_running; then
        echo -n "Stopping $name.."
        kill `get_pid`
        for i in {1..10}
        do
            if ! is_running; then
                break
            fi

            echo -n "."
            sleep 1
        done
        echo

        if is_running; then
            echo "Not stopped; may still be shutting down or shutdown may have $
            exit 1
        else
            echo "Stopped"
            restore_iptables
            if [ -f "$pid_file" ]; then
                rm "$pid_file"
            fi
        fi
    else
        echo "Not running"
    fi
    ;;
    restart)
    $0 stop
    if is_running; then
        echo "Unable to stop, will not attempt to start"
        exit 1
    fi
    $0 start
    ;;
    status)
    if is_running; then
        echo "Running"
    else
        echo "Stopped"
        exit 1
    fi
    ;;
    resetiptables)
        reset_iptables
    ;;
    *)
    echo "Usage: $0 {start|stop|restart|status|resetiptables}"
    exit 1
    ;;
esac

exit 0

 

Hope this helps someone!