src/hooks/ports/wireless-ap

   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-port
  23
  24 HOOK_SETTINGS="HOOK ADDRESS BROADCAST_SSID CHANNEL MODE PHY SSID"
  25 HOOK_SETTINGS="${HOOK_SETTINGS} ENCRYPTION KEY"
  26
  27 ADDRESS=$(mac_generate)
  28 BROADCAST_SSID=on
  29 CHANNEL=1
  30 ENCRYPTION=""
  31 KEY=""
  32 MODE="g"
  33 SSID=
  34
  35 function hook_check_settings() {
  36         assert isset ADDRESS
  37         assert ismac ADDRESS
  38         assert isset BROADCAST_SSID
  39         assert isbool BROADCAST_SSID
  40         assert isset CHANNEL
  41         assert isset MODE
  42         assert isoneof MODE a b g n
  43         assert isset PHY
  44         assert ismac PHY
  45         assert isset SSID
  46
  47         if isset ENCRYPTION; then
  48                 assert isoneof ENCRYPTION WPA WPA2 WPA/WPA2
  49
  50                 assert isset KEY
  51                 assert [ ${#KEY} -ge 8 ]
  52                 assert [ ${#KEY} -le 63 ]
  53         fi
  54 }
  55
  56 function hook_new() {
  57         while [ $# -gt 0 ]; do
  58                 case "${1}" in
  59                         --broadcast-ssid=*)
  60                                 BROADCAST_SSID=$(cli_get_val ${1})
  61                                 ;;
  62                         --channel=*)
  63                                 CHANNEL=$(cli_get_val ${1})
  64                                 ;;
  65                         --encryption=*)
  66                                 ENCRYPTION=$(cli_get_val ${1})
  67                                 ;;
  68                         --key=*)
  69                                 KEY=$(cli_get_val ${1})
  70                                 ;;
  71                         --mac=*)
  72                                 ADDRESS=$(cli_get_val ${1})
  73                                 ;;
  74                         --mode=*)
  75                                 MODE=$(cli_get_val ${1})
  76                                 ;;
  77                         --phy=*)
  78                                 PHY=$(cli_get_val ${1})
  79                                 ;;
  80                         --ssid=*)
  81                                 SSID=$(cli_get_val ${1})
  82                                 ;;
  83                         *)
  84                                 warning "Ignoring unknown argument '${1}'"
  85                                 ;;
  86                 esac
  87                 shift
  88         done
  89
  90         # Save address of phy do identify it again
  91         PHY=$(phy_get ${PHY})
  92         PHY=$(phy_get_address ${PHY})
  93
  94         local port=$(port_find_free ${PORT_PATTERN_ACCESSPOINT})
  95         assert isset port
  96
  97         port_settings_write "${port}" ${HOOK_SETTINGS}
  98
  99         exit ${EXIT_OK}
 100 }
 101
 102 function hook_edit() {
 103         local port=${1}
 104         shift
 105
 106         assert isset port
 107
 108         port_settings_read "${port}" ${HOOK_SETTINGS}
 109
 110         while [ $# -gt 0 ]; do
 111                 case "${1}" in
 112                         --broadcast-ssid=*)
 113                                 BROADCAST_SSID=$(cli_get_val ${1})
 114                                 ;;
 115                         --channel=*)
 116                                 CHANNEL=$(cli_get_val ${1})
 117                                 ;;
 118                         --encryption=*)
 119                                 ENCRYPTION=$(cli_get_val ${1})
 120                                 ;;
 121                         --key=*)
 122                                 KEY=$(cli_get_val ${1})
 123                                 ;;
 124                         --ssid=*)
 125                                 SSID=$(cli_get_val ${1})
 126                                 ;;
 127                         --mode=*)
 128                                 MODE=$(cli_get_val ${1})
 129                                 ;;
 130                         *)
 131                                 warning "Unknown argument '${1}'"
 132                                 ;;
 133                 esac
 134                 shift
 135         done
 136
 137         port_settings_write "${port}" ${HOOK_SETTINGS}
 138
 139         exit ${EXIT_OK}
 140 }
 141
 142 function hook_create() {
 143         local port="${1}"
 144         assert isset port
 145
 146         device_exists "${port}" && exit ${EXIT_OK}
 147
 148         port_settings_read "${port}" ${HOOK_SETTINGS}
 149
 150         # Check if the PHY is present.
 151         local phy=$(phy_get ${PHY})
 152         if ! isset phy; then
 153                 log DEBUG "phy '${PHY}' is not present"
 154                 exit ${EXIT_ERROR}
 155         fi
 156
 157         # Create the wireless device
 158         wireless_create "${port}" \
 159                 --phy="${phy}" \
 160                 --type="ap" \
 161                 --address="${ADDRESS}"
 162
 163         exit ${EXIT_OK}
 164 }
 165
 166 function hook_remove() {
 167         local port="${1}"
 168         assert isset port
 169
 170         # Remove the device if present
 171         if device_exists "${port}"; then
 172                 wireless_remove "${port}"
 173         fi
 174
 175         exit ${EXIT_OK}
 176 }
 177
 178 function hook_up() {
 179         local port="${1}"
 180         assert isset port
 181
 182         # The port must already exist before
 183         # hostapd is started. Otherwise it will
 184         # fail horribly over and over again.
 185         assert device_exists "${port}"
 186
 187         hostapd_start "${port}"
 188 }
 189
 190 function hook_down() {
 191         local port="${1}"
 192         assert isset port
 193
 194         hostapd_stop "${port}"
 195 }
 196
 197 function hook_hotplug() {
 198         local port="${1}"
 199         assert isset port
 200
 201         case "$(hotplug_action)" in
 202                 add)
 203                         # Create the port when the phy is plugged in
 204                         if hotplug_event_port_uses_phy "${port}"; then
 205                                 hook_create "${port}"
 206                         fi
 207                         ;;
 208
 209                 remove)
 210                         # Stop hostapd
 211                         if hotplug_event_port_is_interface "${port}"; then
 212                                 hostapd_stop "${port}"
 213
 214                                 exit ${EXIT_OK}
 215                         fi
 216                         ;;
 217         esac
 218
 219         exit ${EXIT_NOT_HANDLED}
 220 }