udev/network-hotplug

   1 #!/bin/bash
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2011  Michael Tremer & Christian Schmidt                      #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 . /lib/network/functions
  23
  24 # Do nothing, if the network isn't running.
  25 # That happens for example on boot time.
  26 if ! network_is_running; then
  27         exit 0
  28 fi
  29
  30 # Check if the udev environment variables are properly set.
  31 assert isset ACTION
  32 assert isset INTERFACE
  33
  34 # Check, if the device is a physical network interface and
  35 # if we can handle it.
  36 if ! device_is_real ${INTERFACE}; then
  37         exit ${EXIT_OK}
  38 fi
  39
  40 # Check, if there is a configuration for that device.
  41 if port_exists ${INTERFACE}; then
  42         port=${INTERFACE}
  43
  44 else
  45         # If the given device was not configured,
  46         # we create an initial configuration.
  47         port_create ethernet ${INTERFACE}
  48         exit ${EXIT_OK}
  49 fi
  50
  51 case "${ACTION}" in
  52         add|register)
  53                 zone=$(port_zone ${port})
  54
  55                 # Check, if the device is configured in a zone.
  56                 # If not, there is nothing to do.
  57                 isset zone || exit ${EXIT_OK}
  58
  59                 boot=$(zone_config_option ${zone} BOOT)
  60                 if enabled boot; then
  61                         zone_up ${zone}
  62                 fi
  63                 ;;
  64
  65         remove|unregister)
  66                 port_down ${port}
  67                 ;;
  68 esac
  69
  70 exit ${EXIT_OK}