olsrd/files/olsrd.hotplug.sh

   1 #!/bin/sh
   2
   3 olsrd_list_configured_interfaces()
   4 {
   5         local i=0
   6         local interface
   7
   8         while interface="$( uci -q get $OLSRD.@Interface[$i].interface )"; do {
   9                 case "$( uci -q get $OLSRD.@Interface[$i].ignore )" in
  10                         1|on|true|enabled|yes)
  11                                 # is disabled
  12                         ;;
  13                         *)
  14                                 echo "$interface"       # e.g. 'lan'
  15                         ;;
  16                 esac
  17
  18                 i=$(( $i + 1 ))
  19         } done
  20 }
  21
  22 olsrd_interface_already_in_config()
  23 {
  24         # e.g.: 'Interface "eth0.1" "eth0.2" "wlan0"'
  25         if grep -s ^'Interface ' '/var/etc/$OLSRD.conf' | grep -q "\"$DEVICE\""; then
  26                 logger -t olsrd_hotplug -p daemon.debug "[OK] already_active: '$INTERFACE' => '$DEVICE'"
  27                 return 0
  28         else
  29                 logger -t olsrd_hotplug -p daemon.info "[OK] ifup: '$INTERFACE' => '$DEVICE'"
  30                 return 1
  31         fi
  32 }
  33
  34 olsrd_interface_needs_adding()
  35 {
  36         local interface
  37
  38         # likely and cheap operation:
  39         olsrd_interface_already_in_config && return 1
  40
  41         for interface in $(olsrd_list_configured_interfaces); do {
  42                 [ "$interface" = "$INTERFACE" ] && {
  43                         olsrd_interface_already_in_config || return 0
  44                 }
  45         } done
  46
  47         logger -t olsrd_hotplug -p daemon.debug "[OK] interface '$INTERFACE' => '$DEVICE' not used for $OLSRD"
  48         return 1
  49 }
  50
  51 case "$ACTION" in
  52         ifup)
  53                 # only work after the first normal startup
  54                 # also: no need to test, if enabled
  55                 OLSRD=olsrd
  56                 [ -e "/var/etc/$OLSRD.conf" ] && {
  57                         # INTERFACE = e.g. 'wlanadhocRADIO1' or 'cfg144d8f'
  58                         # DEVICE    = e.g. 'wlan1-1'
  59                         olsrd_interface_needs_adding && {
  60                                 . /etc/rc.common /etc/init.d/$OLSRD restart
  61                         }
  62                 }
  63
  64                 OLSRD=olsrd6
  65                 [ -e "/var/etc/$OLSRD.conf" ] && {
  66                         olsrd_interface_needs_adding && {
  67                                 . /etc/rc.common /etc/init.d/$OLSRD restart
  68                         }
  69                 }
  70         ;;
  71 esac