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 IN_HOTPLUG_EVENT=1
  23
  24 # Setup logging.
  25 LOG_FACILITY="network-hotplug"
  26
  27 . /usr/lib/network/functions
  28
  29 # Read network settings
  30 network_settings_read
  31
  32 log DEBUG "Called with SUBSYSTEM='${SUBSYSTEM}', ACTION='${ACTION}'"
  33
  34 # Check if the udev environment variables are properly set.
  35 assert isset ACTION
  36
  37 case "${SUBSYSTEM}" in
  38         ieee80211)
  39                 PHY="$(basename "${DEVPATH}")"
  40                 if phy_exists "${PHY}"; then
  41                         PHY_ADDRESS="$(phy_get_address "${PHY}")"
  42                         log DEBUG "  PHY='${PHY}', PHY_ADDRESS='${PHY_ADDRESS}'"
  43                 else
  44                         PHY=""
  45                 fi
  46
  47                 # Propagate the hotplug event to all configured port hooks
  48                 hotplug_propagate_all_ports || exit ${EXIT_ERROR}
  49                 ;;
  50
  51         net)
  52                 assert isset INTERFACE
  53
  54                 # Don't do anything for zones
  55                 if zone_exists "${INTERFACE}"; then
  56                         exit ${EXIT_OK}
  57                 fi
  58
  59                 # Get the internal type of the device for later processing
  60                 TYPE="$(device_get_type "${INTERFACE}")"
  61
  62                 log DEBUG "  INTERFACE='${INTERFACE}', TYPE='${TYPE}'"
  63
  64                 # Stop processing rules for wireless monitoring devices
  65                 if device_is_wireless_monitor "${INTERFACE}"; then
  66                         exit ${EXIT_OK}
  67                 fi
  68
  69                 # Handle special cases like removing automatically created
  70                 # devices that we don't want
  71                 case "${ACTION},${TYPE}" in
  72                         # Bonding
  73                         add,bonding)
  74                                 # Remove bonding devices without configuration
  75                                 if ! port_exists "${INTERFACE}"; then
  76                                         bonding_remove "${INTERFACE}"
  77                                         exit ${EXIT_OK}
  78                                 fi
  79                                 ;;
  80
  81                         # Ethernet
  82                         add,ethernet)
  83                                 # Create a default port for all ethernet devices
  84                                 if ! port_exists "${INTERFACE}"; then
  85                                         port_new "ethernet" "${INTERFACE}"
  86                                         exit ${EXIT_OK}
  87                                 fi
  88                                 ;;
  89
  90                         # Wireless devices
  91                         add,wireless)
  92                                 # Remove wireless devices without configuration
  93                                 if ! port_exists "${INTERFACE}"; then
  94                                         wireless_remove "${INTERFACE}"
  95                                         exit ${EXIT_OK}
  96                                 fi
  97
  98                                 # Load regulatory domain for wireless devices
  99                                 wireless_init_reg_domain
 100                                 ;;
 101
 102                         # Don't propagate removal events for ports that don't exist
 103                         remove,*)
 104                                 if ! port_exists "${INTERFACE}"; then
 105                                         exit ${EXIT_OK}
 106                                 fi
 107                                 ;;
 108                 esac
 109
 110                 if ! port_exists "${INTERFACE}"; then
 111                         log ERROR "Got to hotplug event for a port which does not exist: ${INTERFACE}"
 112                         exit ${EXIT_ERROR}
 113                 fi
 114
 115                 # Propagate the hotplug event to all configured port hooks
 116                 hotplug_propagate_all_ports || exit ${EXIT_ERROR}
 117
 118                 # Propagate the hotplug event to all configured zones
 119                 hotplug_propagate_all_zones || exit ${EXIT_ERROR}
 120
 121                 exit ${EXIT_OK}
 122                 ;;
 123
 124         *)
 125                 log ERROR "Called for an unsupported subsystem: ${SUBSYSTEM}"
 126                 exit ${EXIT_ERROR}
 127                 ;;
 128 esac
 129
 130 exit ${EXIT_NOT_HANDLED}