#!/bin/sh

reload_bird()
{
  echo "configure" | /bin/nc -w 5 -U /tmp/bird.ctl
}

if [ "${script_type}" = "client-disconnect" ]; then
  echo > "/tmp/${common_name}-${dev}.conf"
  reload_bird
elif [ "${script_type}" = "client-connect" ]; then
  for f in "/tmp/${common_name}-"*.conf; do
    [ -f "${f}" ] && echo > "${f}"
  done

  echo "route ${ifconfig_pool_remote_ip}/32 via \"${dev}\";" > "/tmp/${common_name}-${dev}.conf"

  if [ -f "/ccd/${common_name}" ]; then
    while read line; do
      cmd="${line%% *}"
      ip_and_mask="${line#* }"

      if [ "${cmd}" = "iroute" ]; then
        net="${ip_and_mask%% *}"
        mask="${ip_and_mask#* }"

        case "${mask}" in
          "255.255.0.0") cidr="16" ;;
          "255.255.128.0") cidr="17" ;;
          "255.255.192.0") cidr="18" ;;
          "255.255.224.0") cidr="19" ;;
          "255.255.240.0") cidr="20" ;;
          "255.255.248.0") cidr="21" ;;
          "255.255.252.0") cidr="22" ;;
          "255.255.254.0") cidr="23" ;;
          "255.255.255.0") cidr="24" ;;
          "255.255.255.128") cidr="25" ;;
          "255.255.255.192") cidr="26" ;;
          "255.255.255.224") cidr="27" ;;
          "255.255.255.240") cidr="28" ;;
          "255.255.255.248") cidr="29" ;;
          "255.255.255.252") cidr="30" ;;
          "255.255.255.254") cidr="31" ;;
          *) cidr="32"
        esac

        echo "route ${net}/${cidr} via \"${dev}\";" >> "/tmp/${common_name}-${dev}.conf"
      fi
    done < "/ccd/${common_name}"
  fi

  reload_bird
fi