freifunk_gateway_connection_check.sh

#!/bin/sh
# this script can log the quality of fastd-connections to all gateways
# it sets only one gateway active at a time and checks the connection.
# add this script as cron script to get a statistic over time
COMMUNITY_NAME=ffki;
GW_PREFIX=vpn
GATEWAYLIST="0 1 2 4 6"
PING_IP6=2a01:4f8:171:27a2:0:77:77:254
STATISTIC_LOG_FILE=/tmp/gw_connection_statistic.log
for ENABLED in $GATEWAYLIST; do
  echo uci enable only Gateway $ENABLED
  for GATEWAY in $GATEWAYLIST; do
    STATUS=0
    if [ $ENABLED == $GATEWAY ]; then
      STATUS=1
    fi
    uci set fastd.mesh_${GW_PREFIX}_backbone_peer_${COMMUNITY_NAME}_${GW_PREFIX}${GATEWAY}.enabled=${STATUS}
  done
  echo force batman-adv to re-elect the gateway
	batctl gw off
	batctl gw client 1
  # show active gw:
	# WLAN reset
	/sbin/wifi
  /etc/init.d/fastd stop
  /etc/init.d/fastd start
  sleep 20
  batctl gwl | grep -e "^=>" -e "^\*"
  echo check ${GW_PREFIX}${ENABLED} ...
  ping -c 1 -w 2 $PING_IP6
  if [ $? == 0 ]; then
    echo ping OK
  else
    echo has no ping connection
    DATE=$(date '+%Y-%m-%d %H:%M:%S')
    echo '{"'$DATE'":{"gw":"'$GW_PREFIX$ENABLED'","ping":false}},'>>$STATISTIC_LOG_FILE
  fi
  # check TQ
  TQ=$(batctl gwl | grep -e "^=>" -e "^\*" | awk -F '[()]' '{print $2}' | tr -d " ")
  if [ $TQ -gt 100 ]; then
    echo TQ $TQ is OK
  else
    echo TQ $TQ is NOT OK
    DATE=$(date '+%Y-%m-%d %H:%M:%S')
    echo '{"'$DATE'":{"gw":"'$GW_PREFIX$ENABLED'","tq":"'$TQ'"}},'>>$STATISTIC_LOG_FILE
  fi
done
echo reenable all Gateways
for GATEWAY in $GATEWAYLIST; do uci set fastd.mesh_${GW_PREFIX}_backbone_peer_${COMMUNITY_NAME}_${GW_PREFIX}${GATEWAY}.enabled=1 ; done
# show result
for CHECK in $GATEWAYLIST; do uci show fastd.mesh_${GW_PREFIX}_backbone_peer_${COMMUNITY_NAME}_${GW_PREFIX}${CHECK}.enabled ; done