rssi_test2.sh

#!/bin/sh

LOWER=15
BANTIME=5000

iw event | while read line; do
  case "$line" in
    *": new station "*)
      iface="${line%%:*}"
      mac=`echo "${line##* }" | tr [a-f] [A-F]`
      snr=`iwinfo $iface assoclist | grep $mac | sed 's/^.*(/(/' | cut -f1 -d")" | sed "s/^(SNR //"`
      [ "$snr" -lt "$LOWER" ] && {
        par="{\"addr\":\"$mac\", \"reason\":\"assoc toomany\", \"deauth\":true, \"ban_time\":$BANTIME}"
        ubus call hostapd.$_iface del_client "$par"
      }
    ;;
  esac
done