src/ppp/pppoe-server

   1 #!/bin/bash
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2012  IPFire Network Development Team                         #
   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 # This is a wrapper script which does some on-the-fly configuration of the
  23 # pppoe-server daemon, which does not support any configuration files.
  24
  25 LOG_FACILITY="pppoe-server"
  26 . /usr/lib/network/functions
  27
  28 # Read network settings
  29 network_settings_read
  30
  31 zone=${1}
  32 assert zone_exists ${zone}
  33
  34 action=${2}
  35
  36 # Read the configuration file of this hook.
  37 zone_config_settings_read_by_hook "${zone}" "pppoe-server"
  38 assert isset SUBNET
  39
  40 pppd_options="${RUN_DIR}/${zone}/pppoe-server-options"
  41 pool_file="${RUN_DIR}/${zone}/pppoe-server-pool"
  42
  43 case "${action}" in
  44         cleanup)
  45                 # Cleanup all temporary files.
  46                 rm -f ${pppd_options} ${pool_file}
  47
  48                 exit ${EXIT_OK}
  49                 ;;
  50
  51         *)
  52                 # Don't let the server fork to background.
  53                 pppoe_cmdline="-F"
  54
  55                 # Add the interface to listen to.
  56                 pppoe_cmdline="${pppoe_cmdline} -I ${zone}"
  57
  58                 # Randomize session IDs.
  59                 pppoe_cmdline="${pppoe_cmdline} -r"
  60
  61                 # Add the service name.
  62                 if isset SERVICE_NAME; then
  63                         pppoe_cmdline="${pppoe_cmdline} -S ${SERVICE_NAME// /_}"
  64                 fi
  65
  66                 # Add the max. number of sessions per MAC address.
  67                 if [ ${MAX_SESSIONS} -gt 0 ]; then
  68                         pppoe_cmdline="${pppoe_cmdline} -x ${MAX_SESSIONS}"
  69                 fi
  70
  71                 # Create the pppoe-server-options file.
  72                 pppoe_server_options ${pppd_options} ${zone} \
  73                         --dns-servers="${DNS_SERVERS}"
  74                 pppoe_cmdline="${pppoe_cmdline} -O ${pppd_options}"
  75
  76                 # Configure the IP addresses.
  77                 local_address=$(ipv4_get_network ${SUBNET})
  78                 pppoe_cmdline="${pppoe_cmdline} -L ${local_address}"
  79
  80                 # Create the address pool.
  81                 pppoe_server_poolfile ${pool_file} ${SUBNET}
  82                 pppoe_cmdline="${pppoe_cmdline} -p ${pool_file}"
  83
  84                 log INFO "Starting pppoe-server daemon..."
  85                 log DEBUG "pppoe-server options: ${pppoe_cmdline}"
  86
  87                 # Now exec the actual pppoe-server binary.
  88                 exec /usr/sbin/pppoe-server ${pppoe_cmdline}
  89
  90                 error "Could not execute pppoe-server. Exiting."
  91                 exit ${EXIT_ERROR}
  92         ;;
  93 esac
  94
  95 exit ${EXIT_ERROR}