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}', INTERFACE='${INTERFACE}', DEVPATH='${DEVPATH}'"
  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 "${DEVPATH}")"
  40
  41                 # Check if the PHY exists
  42                 if ! phy_exists "${PHY}"; then
  43                         exit ${EXIT_OK}
  44                 fi
  45
  46                 case "${ACTION}" in
  47                         add)
  48                                 # Load regulatory domain for wireless devices
  49                                 wireless_init_reg_domain
  50
  51                                 # Configure LEDs
  52                                 phy_leds_autoconf "${PHY}"
  53                                 ;;
  54                 esac
  55
  56                 # Propagate the hotplug event to all configured port hooks
  57                 hotplug_propagate_all_ports || exit ${EXIT_ERROR}
  58
  59                 # Everything went fine
  60                 exit ${EXIT_OK}
  61                 ;;
  62
  63         net)
  64                 assert isset INTERFACE
  65
  66                 # Don't do anything for zones
  67                 if zone_exists "${INTERFACE}"; then
  68                         exit ${EXIT_OK}
  69
  70                 # Stop processing rules for the loopback device
  71                 elif device_is_loopback ${INTERFACE}; then
  72                         exit ${EXIT_OK}
  73
  74                 # Stop processing rules for wireless monitoring devices
  75                 elif device_is_wireless_monitor ${INTERFACE}; then
  76                         exit ${EXIT_OK}
  77                 fi
  78
  79                 # Did we get called for a non-existing interface?
  80                 if ! port_exists "${INTERFACE}"; then
  81                         case "${ACTION}" in
  82                                 add)
  83                                         TYPE="$(device_get_type "${INTERFACE}")"
  84
  85                                         # If this is an Ethernet device, we will automatically create a new port
  86                                         if [ "${TYPE}" = "ethernet" ]; then
  87                                                 port_new "ethernet" "${INTERFACE}"
  88                                                 exit $?
  89                                         fi
  90
  91                                         log WARNING "Got to hotplug event for a port which does not exist: ${INTERFACE}"
  92
  93                                         # Try to remove the device again
  94                                         case "${TYPE}" in
  95                                                 bonding)
  96                                                         bonding_remove "${INTERFACE}"
  97                                                         ;;
  98                                                 dummy)
  99                                                         dummy_remove "${INTERFACE}"
 100                                                         ;;
 101                                                 wireless)
 102                                                         wireless_remove "${INTERFACE}"
 103                                                         ;;
 104                                                 *)
 105                                                         device_delete "${INTERFACE}"
 106                                         esac
 107
 108                                         exit ${EXIT_OK}
 109                                         ;;
 110
 111                                 remove)
 112                                         # Don't propagate removal events for ports that don't exist
 113                                         exit ${EXIT_OK}
 114                                         ;;
 115                         esac
 116                 fi
 117
 118                 # Propagate the hotplug event to all configured port hooks
 119                 hotplug_propagate_all_ports || exit ${EXIT_ERROR}
 120
 121                 # Propagate the hotplug event to all configured zones
 122                 hotplug_propagate_all_zones || exit ${EXIT_ERROR}
 123
 124                 exit ${EXIT_OK}
 125                 ;;
 126
 127         *)
 128                 log ERROR "Called for an unsupported subsystem: ${SUBSYSTEM}"
 129                 exit ${EXIT_ERROR}
 130                 ;;
 131 esac
 132
 133 exit ${EXIT_NOT_HANDLED}