functions.red

   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 function red_db_path() {
  23         local zone=${1}
  24
  25         echo "${RED_DB_DIR}/${zone}"
  26 }
  27
  28 function red_db_exists() {
  29         local zone=${1}
  30
  31         [ -d "$(red_db_path ${zone})" ]
  32 }
  33
  34 function red_db_create() {
  35         local zone=${1}
  36
  37         red_db_exists ${zone} && return ${EXIT_OK}
  38
  39         mkdir -p $(red_db_path ${zone})
  40 }
  41
  42 function red_db_remove() {
  43         local zone=${1}
  44
  45         [ -z "${zone}" ] && return ${EXIT_ERROR}
  46
  47         rm -rf ${RED_DB_DIR}
  48 }
  49
  50 function red_db_set() {
  51         local zone=${1}
  52         local parameter=${2}
  53         shift 2
  54
  55         local value="$@"
  56
  57         red_db_create ${zone}
  58
  59         echo "${value}" > $(red_db_path ${zone})/${parameter}
  60 }
  61
  62 function red_db_get() {
  63         local zone=${1}
  64         local parameter=${2}
  65         shift 2
  66
  67         cat $(red_db_path ${zone})/${parameter} 2>/dev/null
  68 }
  69
  70 function red_db_from_ppp() {
  71         local zone=${1}
  72
  73         # Save ppp configuration
  74         red_db_set ${zone} type "ppp"
  75         red_db_set ${zone} local-ip-address ${PPP_IPLOCAL}
  76         red_db_set ${zone} remote-ip-address ${PPP_IPREMOTE}
  77
  78         red_db_set ${zone} dns ${PPP_DNS1} ${PPP_DNS2}
  79
  80         red_db_set ${zone} remote-address ${PPP_MACREMOTE,,}
  81 }
  82
  83 function red_routing_update() {
  84         local zone=${1}
  85
  86         local table=${zone}
  87
  88         # Create routing table if not exists
  89         routing_table_create ${table}
  90
  91         local remote_ip_address=$(red_db_get ${zone} remote-ip-address)
  92         local local_ip_address=$(red_db_get ${zone} local-ip-address)
  93
  94         ip route replace table ${table} default nexthop via ${remote_ip_address}
  95
  96         ip rule add from ${local_ip_address} lookup ${table}
  97 }