net/miniupnpd/files/miniupnpd.hotplug

   1 #!/bin/sh
   2
   3 miniupnpd_add_rules() {
   4         local zone="$1"
   5         local network="$2"
   6         local iface="$3"
   7
   8         miniupnpd_remove_rules
   9
  10         logger -t miniupnpd "adding firewall rules for $iface to zone $zone"
  11
  12         iptables -t nat -N MINIUPNPD 2>/dev/null
  13         iptables -t nat -A zone_${zone}_prerouting -i $iface -j MINIUPNPD
  14         iptables -t filter -N MINIUPNPD 2>/dev/null
  15         iptables -t filter -A zone_${zone}_forward -i $iface ! -o $iface -j MINIUPNPD
  16
  17         uci_set_state upnpd state "" state
  18         uci_set_state upnpd state zone "$zone"
  19         uci_set_state upnpd state ifname "$iface"
  20         uci_set_state upnpd state network "$network"
  21 }
  22
  23 miniupnpd_remove_rules() {
  24         local zone="$(uci_get_state upnpd state zone)"
  25         local iface="$(uci_get_state upnpd state ifname)"
  26
  27         [ -n "$zone" ] && [ -n "$iface" ] && {
  28                 logger -t miniupnpd "removing firewall rules for $iface from zone $zone"
  29
  30                 while iptables -t nat -D zone_${zone}_prerouting \
  31                         -i $iface -j MINIUPNPD 2>/dev/null; do :; done
  32
  33                 while iptables -t filter -D zone_${zone}_forward \
  34                         -i $iface ! -o $iface -j MINIUPNPD 2>/dev/null; do :; done
  35         }
  36
  37         uci_revert_state upnpd
  38 }
  39
  40 /etc/init.d/miniupnpd enabled && [ -n "`pidof miniupnpd`" ] && {
  41
  42         local extif="$(uci_get upnpd config external_iface)"
  43         local curif="$(uci_get_state upnpd state network)"
  44
  45         if [ "$ACTION" = "add" ] && [ "$INTERFACE" = "$extif" ]; then
  46                 miniupnpd_add_rules "$ZONE" "$INTERFACE" "$DEVICE"
  47         elif [ "$ACTION" = "remove" ] && [ "$INTERFACE" = "$curif" ]; then
  48                 miniupnpd_remove_rules
  49         fi
  50 }