src/initscripts/system/static-routes

   1 #!/bin/bash
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2007-2022  IPFire Team  <info@ipfire.org>                     #
   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 . /etc/sysconfig/rc
  23 . ${rc_functions}
  24
  25
  26 function init_table() {
  27         # Check if table does already exist. If not we add it.
  28         if (ip rule | grep -q "static" >/dev/null 2>&1); then
  29                 return
  30         fi
  31
  32         ip rule add table static
  33 }
  34
  35 function create_all_routes() {
  36         local file=${1}
  37         shift
  38
  39         # Remote all routes.
  40         ip route flush table static >/dev/null 2>&1
  41
  42         local status
  43         local network
  44         local gateway
  45         local remark
  46
  47         # Read all routes from the configuration file and add the enabled ones
  48         # immediately.
  49         while IFS=, read status network gateway remark; do
  50                 [ "${status}" = "on" ] || continue
  51
  52                 if [ -z "${network}" -o -z "${gateway}" ]; then
  53                         # Silently skipping invalid routes.
  54                         continue
  55                 fi
  56
  57                 ip route add ${network} via ${gateway} table static proto static
  58         done < ${file}
  59 }
  60
  61 CONFIGFILE="/var/ipfire/main/routing"
  62
  63 case "${1}" in
  64         start|reload)
  65                 boot_mesg "Adding static routes..."
  66
  67                 # First, initialize the table
  68                 init_table
  69
  70                 # Add all routes
  71                 create_all_routes ${CONFIGFILE}
  72
  73                 evaluate_retval
  74                 ;;
  75
  76         stop)
  77                 boot_mesg "Removing static routes..."
  78                 ip route flush table static >/dev/null 2>&1
  79                 evaluate_retval
  80                 ;;
  81
  82         *)
  83                 echo "Usage: ${0} {start|stop|reload}"
  84                 exit 1
  85                 ;;
  86 esac