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 # Check if the udev environment variables are properly set.
  30 assert isset ACTION
  31 assert isset INTERFACE
  32
  33 # Check, if the device is a physical network interface and
  34 # if we can handle it.
  35 if device_exists ${INTERFACE}; then
  36         if ! device_is_ethernet ${INTERFACE}; then
  37                 log DEBUG "Called for interface '${INTERFACE}' which is a virtual interface. Exiting."
  38                 exit ${EXIT_OK}
  39         fi
  40 fi
  41
  42 case "${ACTION}" in
  43         add|register)
  44                 # Check, if there is a configuration for that device.
  45                 if port_exists ${INTERFACE}; then
  46                         port=${INTERFACE}
  47
  48                 # Create new configuration for _real_ network devices.
  49                 else
  50                         type=$(device_get_type ${INTERFACE})
  51                         case "${type}" in
  52                                 # If the given device was not configured,
  53                                 # we create an initial configuration.
  54                                 ethernet|real)
  55                                         port_create ethernet ${INTERFACE}
  56                                         ;;
  57
  58                                 # Handle batman-adv and wireless devices.
  59                                 batman-adv|batman-adv-port|wireless)
  60                                         # Save the phy of this device for later.
  61                                         phy=$(phy_get ${INTERFACE})
  62                                         assert isset phy
  63
  64                                         # Remove the unconfigured wireless device.
  65                                         wireless_remove ${INTERFACE}
  66
  67                                         # Create configured child devices.
  68                                         for port in $(ports_get_all); do
  69                                                 port_cmd hotplug ${port} ${phy}
  70                                         done
  71                                         ;;
  72
  73                                 # Do nothing for all the rest.
  74                                 *)
  75                                         log DEBUG "Don't create a port configuration for device '${INTERFACE}' of type '${type}'."
  76                                         ;;
  77                         esac
  78                         exit ${EXIT_OK}
  79                 fi
  80
  81                 zone=$(port_zone ${port})
  82
  83                 # Check, if the device is configured in a zone.
  84                 # If not, there is nothing to do.
  85                 isset zone || exit ${EXIT_OK}
  86
  87                 # If the zone is already up, we add the device
  88                 # to the zone.
  89                 if zone_is_up ${zone}; then
  90                         zone_up ${zone}
  91                 fi
  92                 ;;
  93
  94         remove|unregister)
  95                 # After the interface has been removed/unplugged,
  96                 # there are often daemons (like hostapd) which need
  97                 # to be stopped.
  98                 port_exists ${INTERFACE} && port_down ${INTERFACE}
  99                 ;;
 100 esac
 101
 102 exit ${EXIT_OK}