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                 # Configure LEDs
  48                 [ "${ACTION}" = "add" ] && phy_leds_autoconf "${PHY}"
  49
  50                 # Propagate the hotplug event to all configured port hooks
  51                 hotplug_propagate_all_ports || exit ${EXIT_ERROR}
  52                 ;;
  53
  54         net)
  55                 assert isset INTERFACE
  56
  57                 # Don't do anything for zones
  58                 if zone_exists "${INTERFACE}"; then
  59                         exit ${EXIT_OK}
  60
  61                 # Stop processing rules for the loopback device
  62                 elif device_is_loopback ${INTERFACE}; then
  63                         exit ${EXIT_OK}
  64
  65                 # Stop processing rules for IPsec devices
  66                 elif device_is_ipsec ${INTERFACE}; then
  67                         exit ${EXIT_OK}
  68
  69                 # Stop processing rules for wireless monitoring devices
  70                 elif device_is_wireless_monitor ${INTERFACE}; then
  71                         exit ${EXIT_OK}
  72                 fi
  73
  74                 # Get the internal type of the device for later processing
  75                 TYPE="$(device_get_type "${INTERFACE}")"
  76
  77                 log DEBUG "  INTERFACE='${INTERFACE}', TYPE='${TYPE}'"
  78
  79                 # Handle special cases like removing automatically created
  80                 # devices that we don't want
  81                 case "${ACTION},${TYPE}" in
  82                         # Bonding
  83                         add,bonding)
  84                                 # Remove bonding devices without configuration
  85                                 if ! port_exists "${INTERFACE}"; then
  86                                         bonding_remove "${INTERFACE}"
  87                                         exit ${EXIT_OK}
  88                                 fi
  89                                 ;;
  90
  91                         # dummy
  92                         add,dummy)
  93                                 # Remove the by default created dummy device
  94                                 if [ "${INTERFACE}" = "dummy0" ]; then
  95                                         dummy_remove "${INTERFACE}"
  96                                         exit ${EXIT_OK}
  97                                 fi
  98                                 ;;
  99
 100                         # Ethernet
 101                         add,ethernet)
 102                                 # Create a default port for all ethernet devices
 103                                 if ! port_exists "${INTERFACE}"; then
 104                                         port_new "ethernet" "${INTERFACE}"
 105                                 fi
 106                                 ;;
 107
 108                         # Wireless devices
 109                         add,wireless)
 110                                 # Remove wireless devices without configuration
 111                                 if ! port_exists "${INTERFACE}"; then
 112                                         wireless_remove "${INTERFACE}"
 113                                         exit ${EXIT_OK}
 114                                 fi
 115
 116                                 # Load regulatory domain for wireless devices
 117                                 wireless_init_reg_domain
 118                                 ;;
 119
 120                         # Don't propagate removal events for ports that don't exist
 121                         remove,*)
 122                                 if ! port_exists "${INTERFACE}"; then
 123                                         exit ${EXIT_OK}
 124                                 fi
 125                                 ;;
 126                 esac
 127
 128                 if ! port_exists "${INTERFACE}"; then
 129                         log ERROR "Got to hotplug event for a port which does not exist: ${INTERFACE}"
 130                         exit ${EXIT_ERROR}
 131                 fi
 132
 133                 # Propagate the hotplug event to all configured port hooks
 134                 hotplug_propagate_all_ports || exit ${EXIT_ERROR}
 135
 136                 # Propagate the hotplug event to all configured zones
 137                 hotplug_propagate_all_zones || exit ${EXIT_ERROR}
 138
 139                 exit ${EXIT_OK}
 140                 ;;
 141
 142         *)
 143                 log ERROR "Called for an unsupported subsystem: ${SUBSYSTEM}"
 144                 exit ${EXIT_ERROR}
 145                 ;;
 146 esac
 147
 148 exit ${EXIT_NOT_HANDLED}