serverfiles/openwrt/common/etc/uci-defaults/20-set-ssid

if [ $(cat /tmp/sysinfo/board_name) == 'tl-wr710n' ]; then
  ## tl-wr710n has three last pairs as MAC
  _MAC=$(iw wlan0 info | awk 'BEGIN { FS=":" } /addr/ { print substr(toupper($4$5$6),1) }') 
else
  ## others have only two
  _MAC=$(iw wlan0 info | awk 'BEGIN { FS=":" } /addr/ { print substr(toupper($5$6),1) }') 
fi

_MAC="Superglue-"$_MAC

[ $(uci get wireless.@wifi-iface[0].ssid) != $_MAC ] && (
  uci set wireless.@wifi-iface[0].ssid=$_MAC
  uci commit wireless
  wifi
  /etc/init.d/network restart
  /etc/init.d/dnsmasq restart
  )

exit 0