ppp/ip-updown

   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 LOG_FACILITY=$(basename ${0})
  23
  24 umask 022
  25
  26 PPP_VARIABLES="IFNAME IPLOCAL IPREMOTE DNS1 DNS2 MACREMOTE LLLOCAL LLREMOTE"
  27
  28 # Give the variables we get passed by pppd an own namespace
  29 for i in ${PPP_VARIABLES}; do
  30         export PPP_${i}=${!i}
  31         unset ${i}
  32 done
  33
  34 . /usr/lib/network/functions
  35
  36 log DEBUG "Called."
  37 for i in ${PPP_VARIABLES}; do
  38         i="PPP_${i}"
  39         log DEBUG "  ${i} = ${!i}"
  40 done
  41
  42 # Zone equals IFNAME
  43 ZONE=${PPP_IFNAME}
  44
  45 # If the given device is a known zone, we will call the required
  46 # hook methods. If we don't know about any zone with name ${ZONE},
  47 # we do nothing.
  48
  49 if isset ZONE && zone_exists ${ZONE}; then
  50         HOOK=$(zone_get_hook ${ZONE})
  51
  52         assert isset HOOK
  53         assert hook_zone_exists ${HOOK}
  54
  55         PROGNAME=$(basename ${0})
  56         METHOD=""
  57         case "${PROGNAME}" in
  58                 ip-pre-up)
  59                         METHOD="ppp_ip_pre_up"
  60                         ;;
  61                 ipv6-down)
  62                         METHOD="ppp_ipv6_down"
  63                         ;;
  64                 ipv6-up)
  65                         METHOD="ppp_ipv6_up"
  66                         ;;
  67                 ip-down)
  68                         METHOD="ppp_ipv4_down"
  69                         ;;
  70                 ip-up)
  71                         METHOD="ppp_ipv4_up"
  72                         ;;
  73         esac
  74         assert isset METHOD
  75
  76         log DEBUG "${PROGNAME}/${METHOD} was called with the following parameters:"
  77         log DEBUG "  $@"
  78
  79         hook_zone_exec "${HOOK}" "${METHOD}" "${ZONE}"
  80         exit $?
  81 fi
  82
  83 exit ${EXIT_OK}