config/udev/network-hotplug-vlan

   1 #!/bin/bash
   2 ############################################################################
   3 #                                                                          #
   4 # This file is part of the IPFire Firewall.                                #
   5 #                                                                          #
   6 # IPFire is free software; you can redistribute it and/or modify           #
   7 # it under the terms of the GNU General Public License as published by     #
   8 # the Free Software Foundation; either version 2 of the License, or        #
   9 # (at your option) any later version.                                      #
  10 #                                                                          #
  11 # IPFire is distributed in the hope that it will be useful,                #
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of           #
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            #
  14 # GNU General Public License for more details.                             #
  15 #                                                                          #
  16 # You should have received a copy of the GNU General Public License        #
  17 # along with IPFire; if not, write to the Free Software                    #
  18 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA #
  19 #                                                                          #
  20 # Copyright (C) 2015 IPFire Team <info@ipfire.org>                         #
  21 #                                                                          #
  22 ############################################################################
  23
  24 [ -n "${INTERFACE}" ] || exit 2
  25
  26 VLAN_CONFIG_FILE="/var/ipfire/ethernet/vlans"
  27 MAIN_CONFIG_FILE="/var/ipfire/ethernet/settings"
  28
  29 # Skip immediately if a configuration file is missing.
  30 [ -e "${VLAN_CONFIG_FILE}" ] && [ -e "${MAIN_CONFIG_FILE}" ] || exit 0
  31
  32 eval $(/usr/local/bin/readhash ${VLAN_CONFIG_FILE})
  33 eval $(/usr/local/bin/readhash ${MAIN_CONFIG_FILE})
  34
  35 for interface in green0 red0 blue0 orange0; do
  36         case "${interface}" in
  37                 green*)
  38                         ZONE_MODE=${GREEN_MODE}
  39                         PARENT_DEV=${GREEN_PARENT_DEV}
  40                         VLAN_ID=${GREEN_VLAN_ID}
  41                         MAC_ADDRESS=${GREEN_MAC_ADDRESS}
  42                         ;;
  43                 red*)
  44                         ZONE_MODE=${RED_MODE}
  45                         PARENT_DEV=${RED_PARENT_DEV}
  46                         VLAN_ID=${RED_VLAN_ID}
  47                         MAC_ADDRESS=${RED_MAC_ADDRESS}
  48                         ;;
  49                 blue*)
  50                         ZONE_MODE=${BLUE_MODE}
  51                         PARENT_DEV=${BLUE_PARENT_DEV}
  52                         VLAN_ID=${BLUE_VLAN_ID}
  53                         MAC_ADDRESS=${BLUE_MAC_ADDRESS}
  54                         ;;
  55                 orange*)
  56                         ZONE_MODE=${ORANGE_MODE}
  57                         PARENT_DEV=${ORANGE_PARENT_DEV}
  58                         VLAN_ID=${ORANGE_VLAN_ID}
  59                         MAC_ADDRESS=${ORANGE_MAC_ADDRESS}
  60                         ;;
  61         esac
  62
  63         # If the parent device (MAC or name) does not match the interface that
  64         # has just come up, we will go on for the next one.
  65         [ "${PARENT_DEV}" = "${INTERFACE}" ] || [ "${PARENT_DEV}" = "$(</sys/class/net/${INTERFACE}/address)" ] || continue
  66
  67         # If the current zone is operating in bridge mode, give the VLAN interface a generic name (e.g. eth0.99 for VLAN 99 on eth0)
  68         if [ "${ZONE_MODE}" = "bridge" ]; then
  69                 interface="${INTERFACE}.${VLAN_ID}"
  70         fi
  71
  72         # Check if the interface does already exists.
  73         # If so, we skip creating it.
  74         if [ -d "/sys/class/net/${interface}" ]; then
  75                 echo "Interface ${interface} already exists." >&2
  76                 continue
  77         fi
  78
  79         if [ -z "${VLAN_ID}" ]; then
  80                 echo "${interface}: You did not set the VLAN ID." >&2
  81                 continue
  82         fi
  83
  84         # Build command line.
  85         command="ip link add link ${INTERFACE} name ${interface}"
  86         if [ -n "${MAC_ADDRESS}" ]; then
  87                 command="${command} address ${MAC_ADDRESS}"
  88         fi
  89         command="${command} type vlan id ${VLAN_ID}"
  90
  91         echo "Creating VLAN interface ${interface}..."
  92         ${command}
  93
  94         # Bring up the parent device.
  95         ip link set ${INTERFACE} up
  96 done
  97
  98 exit 0