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 . /usr/lib/network/functions
  23
  24 # Setup logging.
  25 LOG_FACILITY="network-hotplug"
  26
  27 log DEBUG "Called with ACTION='${ACTION}', INTERFACE='${INTERFACE}'."
  28
  29 # Do nothing, if the network isn't running.
  30 # That happens for example on boot time.
  31 if ! network_is_running; then
  32         log DEBUG "network has not been started, yet. Exiting."
  33         exit 0
  34 fi
  35
  36 # Check if the udev environment variables are properly set.
  37 assert isset ACTION
  38 assert isset INTERFACE
  39
  40 # Check, if the device is a physical network interface and
  41 # if we can handle it.
  42 if device_exists ${INTERFACE}; then
  43         if ! device_is_real ${INTERFACE}; then
  44                 log DEBUG "Called for interface '${INTERFACE}' which is a virtual interface. Exiting."
  45                 exit ${EXIT_OK}
  46         fi
  47 fi
  48
  49 case "${ACTION}" in
  50         add|register)
  51                 # Check, if there is a configuration for that device.
  52                 if port_exists ${INTERFACE}; then
  53                         port=${INTERFACE}
  54
  55                 # Create new configuration for _real_ network devices.
  56                 elif device_is_real ${INTERFACE}; then
  57                         # If the given device was not configured,
  58                         # we create an initial configuration.
  59                         port_create ethernet ${INTERFACE}
  60
  61                 # Dunno what to do in any other case.
  62                 else
  63                         exit 0
  64                 fi
  65
  66                 zone=$(port_zone ${port})
  67
  68                 # Check, if the device is configured in a zone.
  69                 # If not, there is nothing to do.
  70                 isset zone || exit ${EXIT_OK}
  71
  72                 boot=$(zone_config_option ${zone} BOOT)
  73                 if enabled boot; then
  74                         zone_up ${zone}
  75                 fi
  76                 ;;
  77
  78         remove|unregister)
  79                 # Do nothing.
  80                 ;;
  81 esac
  82
  83 exit ${EXIT_OK}