tti-pkt-forwarder init script

tti-pkt-forwarder

#!/bin/bash

NAME="tti-packet-forwarder"
ENABLED="yes"

[ -f /etc/default/$NAME ] && source /etc/default/$NAME

run_dir=/var/run/lora
conf_dir=/var/config/lora
pkt_fwd=/opt/lora/poly_pkt_fwd
pkt_fwd_log=/var/log/lora-pkt-fwd.log
pkt_fwd_pidfile=$run_dir/lora-pkt-fwd.pid

lora_us_id="MTAC-LORA-915"
lora_eu_id="MTAC-LORA-868"

read_card_info() {
    # product-id of first lora card
    lora_id=$(mts-io-sysfs show lora/product-id 2> /dev/null)
    lora_eui=$(mts-io-sysfs show lora/eui 2> /dev/null)
    # remove all colons
    lora_eui_raw=${lora_eui//:/}
}

card_found() {
    if [ "$lora_id" = "$lora_us_id" ] || [ "$lora_id" = "$lora_eu_id" ]; then
        echo "Found lora card $lora_id"
        return 0
    else
        return 1
    fi
}

do_start() {
    read_card_info

    if ! card_found; then
        echo "$0: MTAC-LORA not detected"
        exit 1
    fi

    if [ ! -f $conf_dir/global_conf_src ] ; then
        echo "Please obtain gateway setup script and run it"
        exit 1
    fi

    # wait for internet connection to become available
    while : ; do
        ping -c1 google.com > /dev/null 2> /dev/null
        if [ $? -eq 0 ]
        then
                break
        else
                echo "No internet connection, waiting..."
                sleep 20
        fi
    done

    echo -n "Starting $NAME: "
    mkdir -p $run_dir
    # start packet forwarder
    start-stop-daemon --start --background --make-pidfile \
        --pidfile $pkt_fwd_pidfile --exec $pkt_fwd -- \
        -c $conf_dir -l $pkt_fwd_log
    echo "OK"
}

do_stop() {
    echo -n "Stopping $NAME: "
    start-stop-daemon --stop --quiet --oknodo --pidfile $pkt_fwd_pidfile --retry 5
    rm -f $pkt_fwd_pidfile
    echo "OK"
}

if [ "$ENABLED" != "yes" ]; then
    echo "$NAME: disabled in /etc/default"
    exit
fi

case "$1" in
    "start")
        do_start
        ;;
    "stop")
        do_stop
        ;;
    "restart")
        ## Stop the service and regardless of whether it was
        ## running or not, start it again.
        do_stop
        do_start
        ;;
    *)
        ## If no parameters are given, print which are avaiable.
        echo "Usage: $0 {start|stop|restart}"
        exit 1
        ;;
esac