src/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 # Read network settings
  25 network_settings_read
  26
  27 # Setup logging.
  28 LOG_FACILITY="network-hotplug"
  29
  30 log DEBUG "Called with ACTION='${ACTION}', INTERFACE='${INTERFACE}'."
  31
  32 # Check if the udev environment variables are properly set.
  33 assert isset ACTION
  34 assert isset INTERFACE
  35
  36 # Check, if the device is a physical network interface and
  37 # if we can handle it.
  38 if device_exists ${INTERFACE}; then
  39         type="$(device_get_type "${INTERFACE}")"
  40         case "${type}" in
  41                 # Remove automatically created bonding interface without any configuration
  42                 bonding)
  43                         port_exists "${INTERFACE}" || bonding_remove "${INTERFACE}"
  44                         exit ${EXIT_OK}
  45                         ;;
  46                 ethernet)
  47                         log DEBUG "Called for interface '${INTERFACE}' which is a virtual interface. Exiting."
  48                         exit ${EXIT_OK}
  49                         ;;
  50         esac
  51 fi
  52
  53 case "${ACTION}" in
  54         add|register)
  55                 # Check, if there is a configuration for that device.
  56                 if port_exists ${INTERFACE}; then
  57                         port=${INTERFACE}
  58
  59                 # Create new configuration for _real_ network devices.
  60                 else
  61                         type=$(device_get_type ${INTERFACE})
  62                         case "${type}" in
  63                                 # If the given device was not configured,
  64                                 # we create an initial configuration.
  65                                 ethernet|real)
  66                                         port_create ethernet ${INTERFACE}
  67                                         ;;
  68
  69                                 # Handle batman-adv and wireless devices.
  70                                 batman-adv|batman-adv-port|wireless)
  71                                         # Load regulatory domain for wireless devices
  72                                         wireless_init_reg_domain
  73
  74                                         # Save the phy of this device for later.
  75                                         phy=$(phy_get ${INTERFACE})
  76                                         assert isset phy
  77
  78                                         # Remove the unconfigured wireless device.
  79                                         wireless_remove ${INTERFACE}
  80
  81                                         # Create configured child devices.
  82                                         for port in $(ports_get_all); do
  83                                                 port_cmd hotplug "${port}" "${phy}"
  84                                                 ret=$?
  85
  86                                                 case "${ret}" in
  87                                                         ${EXIT_OK})
  88                                                                 log DEBUG "phy '${phy}' was handled by port '${port}'"
  89                                                                 break
  90                                                                 ;;
  91                                                         ${EXIT_NOT_HANDLED})
  92                                                                 log DEBUG "phy '${phy}' was not handled by port '${port}'"
  93                                                                 ;;
  94                                                         *)
  95                                                                 log WARNING "Unknown exit code for port '${port}': ${ret}"
  96                                                                 ;;
  97                                                 esac
  98                                         done
  99                                         ;;
 100
 101                                 # Do nothing for all the rest.
 102                                 *)
 103                                         log DEBUG "Don't create a port configuration for device '${INTERFACE}' of type '${type}'."
 104                                         ;;
 105                         esac
 106                         exit ${EXIT_OK}
 107                 fi
 108
 109                 zone=$(port_zone ${port})
 110
 111                 # Check, if the device is configured in a zone.
 112                 # If not, there is nothing to do.
 113                 isset zone || exit ${EXIT_OK}
 114
 115                 # If the zone is already up or enabled for auto-start,
 116                 # we add the device to the zone.
 117                 if zone_is_active "${zone}"; then
 118                         zone_reload "${zone}"
 119                 elif zone_is_enabled "${zone}"; then
 120                         zone_start "${zone}"
 121                 fi
 122                 ;;
 123
 124         remove|unregister)
 125                 # After the interface has been removed/unplugged,
 126                 # there are often daemons (like hostapd) which need
 127                 # to be stopped.
 128                 port_exists ${INTERFACE} && port_down ${INTERFACE}
 129                 ;;
 130 esac
 131
 132 exit ${EXIT_OK}