TTN SPF klk15 for iFemtocell HAL klk7

execute_spf.sh

#!/bin/sh -e

# Replace the existing file with this in /user/spf/bin/

# Move to configuration directory
cd /user/spf/etc

# Create configuration and version files
ln -fs /user/spf/etc/global_conf.json /tmp/packet_forwarder.conf
echo spf 3.1.0-klk15 +hal_libloragw_4.1.3-klk7 > /tmp/packet_forwarder_version.txt

# Open firewall ports
iptables_accept() {
        local PORT=1700
        [ -z "${PORT}" ] && return
        local RULE="OUTPUT -t filter -p udp --dport $PORT -j ACCEPT"
        iptables -C $RULE 2> /dev/null || iptables -I $RULE
        local RULE="INPUT -t filter -p udp --sport $PORT -j ACCEPT"
        iptables -C $RULE 2> /dev/null || iptables -I $RULE
}

iptables_accept /tmp/packet_forwarder.conf serv_port_up
iptables_accept /tmp/packet_forwarder.conf serv_port_down

(
        # Lock on pid file
        exec 8> /var/run/packet_forwarder.pid
        flock -n -x 8
        trap "rm -f /var/run/packet_forwarder.pid" EXIT

        # Start packet forwarder
        /user/spf/bin/spf 2>&1 | logger -p local1.notice -t spf &
        trap "killall -q spf" INT QUIT TERM

        # Update pid and wait for it
        pidof spf >&8
        wait
) &

NOTE: This script is specifically for:

• Kerlink firmware 3.3.3
• HAL klk7
• Semtech Packet Forwarder klk15

If you are using a different version, it's best to manually copy the changes into the existing file, instead of overwriting it with this one.