src/hooks/ports/ethernet

   1 #!/bin/bash
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2010  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/header-port
  23
  24 # DEVICE equals the actual MAC address of the device.
  25 # If ADDRESS is set, the device will get ADDRESS set for its MAC address.
  26
  27 HOOK_SETTINGS="HOOK ADDRESS DEVICE"
  28
  29 function hook_check() {
  30         assert ismac DEVICE
  31
  32         if isset ADDRESS; then
  33                 assert ismac ADDRESS
  34         fi
  35 }
  36
  37 function hook_new() {
  38         local port=${1}
  39         assert isset port
  40         shift
  41
  42         ADDRESS=""
  43         DEVICE=$(device_get_address ${port})
  44
  45         port_settings_write "${port}" ${HOOK_SETTINGS}
  46
  47         exit ${EXIT_OK}
  48 }
  49
  50 function hook_create() {
  51         # Nothing to do here. Real ethernet devices cannot
  52         # be created. They are just there.
  53         exit ${EXIT_OK}
  54 }
  55
  56 function hook_remove() {
  57         exit ${EXIT_OK}
  58 }
  59
  60 function hook_hotplug_rename() {
  61         local port=${1}
  62         assert isset port
  63
  64         local device=${2}
  65         assert isset device
  66
  67         # Read in the conifguration file.
  68         port_settings_read "${port}" ${HOOK_SETTINGS}
  69
  70         # Get the current MAC address of the device.
  71         local address=$(device_get_address ${device})
  72         assert isset address
  73
  74         # Check if the address matches with the configuration.
  75         if list_match "${address}" ${DEVICE} ${ADDRESS}; then
  76                 log DEBUG "Device '${device}' equals port '${port}'."
  77
  78                 # Change the MAC address, if needed.
  79                 if isset ADDRESS; then
  80                         device_set_address "${device}" "${ADDRESS}"
  81                 fi
  82
  83                 # Everything is done.
  84                 exit ${EXIT_OK}
  85         fi
  86
  87         log DEBUG "Device '${device}' does not equal port '${port}'."
  88         exit ${EXIT_ERROR}
  89 }