src/hooks/configs/pppoe-server

   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 . /usr/lib/network/header-config
  23
  24 HOOK_CONFIG_SETTINGS="HOOK DNS_SERVERS MTU SERVICE_NAME SUBNET MAX_SESSIONS"
  25
  26 # Maximum Transmission Unit.
  27 MTU=1492
  28
  29 # Service Name.
  30 SERVICE_NAME=
  31
  32 # A subnet. Addresses from this subnet will be given to the remote hosts.
  33 # The net address will be the gateway address for the PPPoE server.
  34 SUBNET=
  35
  36 # Defines the max. number of sessions per MAC address.
  37 # 0 = unlimited.
  38 MAX_SESSIONS=0
  39
  40 hook_check_config_settings() {
  41         assert isset MTU
  42         assert isset SUBNET
  43         assert isset MAX_SESSIONS
  44
  45         local server
  46         for server in ${DNS_SERVERS}; do
  47                 assert ipv4_is_valid "${server}"
  48         done
  49 }
  50
  51 hook_new() {
  52         local zone=${1}
  53         shift
  54
  55         while [ $# -gt 0 ]; do
  56                 case "${1}" in
  57                         --dns-server=*)
  58                                 local dns_servers="$(cli_get_val "${1}")"
  59
  60                                 local dns_server
  61                                 for dns_server in ${dns_servers}; do
  62                                         if ! ipv4_is_valid "${dns_server}"; then
  63                                                 warning  "Invalid IPv4 address: ${dns_server}. Skipped."
  64                                                 continue
  65                                         fi
  66
  67                                         list_append DNS_SERVERS "${dns_server}"
  68                                 done
  69                                 ;;
  70                         --max-sessions=*)
  71                                 MAX_SESSIONS=$(cli_get_val ${1})
  72                                 ;;
  73                         --mtu=*)
  74                                 MTU=$(cli_get_val ${1})
  75                                 ;;
  76                         --service-name=*)
  77                                 SERVICE_NAME=$(cli_get_val ${1})
  78                                 ;;
  79                         --subnet=*)
  80                                 SUBNET=$(cli_get_val ${1})
  81                                 ;;
  82                 esac
  83                 shift
  84         done
  85
  86         zone_config_settings_write "${zone}" "${HOOK}"
  87
  88         exit ${EXIT_OK}
  89 }
  90
  91 hook_up() {
  92         local zone=${1}
  93         local config=${2}
  94         shift 2
  95
  96         # Start the PPPoE server.
  97         pppoe_server_start ${zone}
  98
  99         exit ${EXIT_OK}
 100 }
 101
 102 hook_down() {
 103         local zone=${1}
 104         local config=${2}
 105         shift 2
 106
 107         if ! device_exists ${zone}; then
 108                 error "Zone '${zone}' doesn't exist."
 109                 exit ${EXIT_ERROR}
 110         fi
 111
 112         # Stop the PPPoE server.
 113         pppoe_server_stop ${zone}
 114
 115         exit ${EXIT_OK}
 116 }
 117
 118 hook_status() {
 119         local zone=${1}
 120         local config=${2}
 121         shift 2
 122
 123         if ! device_exists ${zone}; then
 124                 error "Zone '${zone}' doesn't exist."
 125                 exit ${EXIT_ERROR}
 126         fi
 127
 128         zone_config_settings_read "${zone}" "${config}"
 129
 130         local status
 131         if pppoe_server_status ${zone}; then
 132                 status="${MSG_HOOK_UP}"
 133         else
 134                 status="${MSG_HOOK_DOWN}"
 135         fi
 136         cli_statusline 3 "PPPoE server" "${status}"
 137
 138         local gateway=$(ipv4_get_network ${SUBNET})
 139         cli_print_fmt1 3 "Gateway" "${gateway}"
 140
 141         local start_address=$(ipv4_encode ${gateway})
 142         start_address=$(( ${start_address} + 1 ))
 143         start_address=$(ipv4_decode ${start_address})
 144         local end_address=$(ipv4_get_broadcast ${SUBNET})
 145
 146         cli_print_fmt1 3 "Client range" \
 147                 "${start_address}-${end_address}"
 148         cli_space
 149
 150         local max_sessions=${MAX_SESSIONS}
 151         if [ "${max_sessions}" = "0" ]; then
 152                 max_sessions="unlimited"
 153         fi
 154         cli_print_fmt1 3 "${max_sessions} session(s) per MAC"
 155         cli_space
 156
 157         exit ${EXIT_OK}
 158 }