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_SETTINGS=(
  25         "DNS_SERVERS"
  26         "MTU"
  27         "SERVICE_NAME"
  28         "SUBNET MAX_SESSIONS"
  29 )
  30
  31 DEFAULT_MTU=1492
  32 DEFAULT_MAX_SESSIONS=0
  33
  34 hook_check_config_settings() {
  35         assert isset MTU
  36         assert isset SUBNET
  37         assert isset MAX_SESSIONS
  38
  39         local server
  40         for server in ${DNS_SERVERS}; do
  41                 assert ipv4_is_valid "${server}"
  42         done
  43 }
  44
  45 hook_parse_cmdline() {
  46         local id="${1}"
  47         shift
  48
  49         while [ $# -gt 0 ]; do
  50                 case "${1}" in
  51                         --dns-server=*)
  52                                 local dns_servers="$(cli_get_val "${1}")"
  53
  54                                 local dns_server
  55                                 for dns_server in ${dns_servers}; do
  56                                         if ! ipv4_is_valid "${dns_server}"; then
  57                                                 warning  "Invalid IPv4 address: ${dns_server}. Skipped."
  58                                                 continue
  59                                         fi
  60
  61                                         list_append DNS_SERVERS "${dns_server}"
  62                                 done
  63                                 ;;
  64                         --max-sessions=*)
  65                                 MAX_SESSIONS=$(cli_get_val "${1}")
  66                                 if ! isinteger ${MAX_SESSIONS} || ! [ ${MAX_SESSIONS} -ge 0 ]; then
  67                                         error "Invalid value for '--max-session'. This value must be an integer greate or eqal zero."
  68                                         exit ${EXIT_ERROR}
  69                                 fi
  70                                 ;;
  71                         --mtu=*)
  72                                 MTU=$(cli_get_val "${1}")
  73                                 if ! mtu_is_valid "ipv4" ${MTU}; then
  74                                         error "Invalid value for '--mtu'. Cannot be larger then 9000 or smaller than 576"
  75                                         exit ${EXIT_ERROR}
  76                                 fi
  77                                 ;;
  78                         --service-name=*)
  79                                 SERVICE_NAME=$(cli_get_val "${1}")
  80                                 ;;
  81                         --subnet=*)
  82                                 SUBNET=$(cli_get_val "${1}")
  83                                 if ! ipv4_net_is_valid "${SUBNET}"; then
  84                                         error "Invalid IPv4 Subnet ${SUBNET}."
  85                                         exit ${EXIT_ERROR}
  86                                 fi
  87                                 ;;
  88                         *)
  89                                 warning "Ignoring unknown option '${1}'"
  90                                 ;;
  91                 esac
  92                 shift
  93         done
  94 }
  95
  96 hook_up() {
  97         local zone=${1}
  98         local config=${2}
  99         shift 2
 100
 101         # Start the PPPoE server.
 102         pppoe_server_start ${zone}
 103
 104         exit ${EXIT_OK}
 105 }
 106
 107 hook_down() {
 108         local zone=${1}
 109         local config=${2}
 110         shift 2
 111
 112         if ! device_exists ${zone}; then
 113                 error "Zone '${zone}' doesn't exist."
 114                 exit ${EXIT_ERROR}
 115         fi
 116
 117         # Stop the PPPoE server.
 118         pppoe_server_stop ${zone}
 119
 120         exit ${EXIT_OK}
 121 }
 122
 123 hook_status() {
 124         local zone=${1}
 125         local config=${2}
 126         shift 2
 127
 128         if ! device_exists ${zone}; then
 129                 error "Zone '${zone}' doesn't exist."
 130                 exit ${EXIT_ERROR}
 131         fi
 132
 133         zone_config_settings_read "${zone}" "${config}"
 134
 135         local status
 136         if pppoe_server_status ${zone}; then
 137                 status="${MSG_HOOK_UP}"
 138         else
 139                 status="${MSG_HOOK_DOWN}"
 140         fi
 141         cli_statusline 3 "PPPoE server" "${status}"
 142
 143         local gateway=$(ipv4_get_network ${SUBNET})
 144         cli_print_fmt1 3 "Gateway" "${gateway}"
 145
 146         local start_address=$(ipv4_encode ${gateway})
 147         start_address=$(( ${start_address} + 1 ))
 148         start_address=$(ipv4_decode ${start_address})
 149         local end_address=$(ipv4_get_broadcast ${SUBNET})
 150
 151         cli_print_fmt1 3 "Client range" \
 152                 "${start_address}-${end_address}"
 153         cli_space
 154
 155         local max_sessions=${MAX_SESSIONS}
 156         if [ "${max_sessions}" = "0" ]; then
 157                 max_sessions="unlimited"
 158         fi
 159         cli_print_fmt1 3 "${max_sessions} session(s) per MAC"
 160         cli_space
 161
 162         exit ${EXIT_OK}
 163 }