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 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 hook_parse_cmdline() {
  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
  95 hook_new() {
  96         if ! hook_parse_cmdline $@; then
  97                 return ${EXIT_ERROR}
  98         fi
  99
 100         local port=$(port_find_free ${PORT_PATTERN_ACCESSPOINT})
 101         assert isset port
 102
 103         port_settings_write "${port}" ${HOOK_SETTINGS}
 104
 105         exit ${EXIT_OK}
 106 }
 107
 108 hook_edit() {
 109         local port=${1}
 110         assert isset port
 111
 112         if ! hook_default_edit $@; then
 113                 return ${EXIT_ERROR}
 114         fi
 115
 116         # To apply all changes, we need to restart the port
 117         port_restart "${port}"
 118 }
 119
 120 hook_create() {
 121         local port="${1}"
 122         assert isset port
 123
 124         device_exists "${port}" && exit ${EXIT_OK}
 125
 126         port_settings_read "${port}" ${HOOK_SETTINGS}
 127
 128         # Check if the PHY is present.
 129         local phy=$(phy_get ${PHY})
 130         if ! isset phy; then
 131                 log DEBUG "phy '${PHY}' is not present"
 132                 exit ${EXIT_ERROR}
 133         fi
 134
 135         # Create the wireless device
 136         wireless_create "${port}" \
 137                 --phy="${phy}" \
 138                 --type="ap" \
 139                 --address="${ADDRESS}"
 140
 141         exit ${EXIT_OK}
 142 }
 143
 144 hook_remove() {
 145         local port="${1}"
 146         assert isset port
 147
 148         # Remove the device if present
 149         if device_exists "${port}"; then
 150                 wireless_remove "${port}"
 151         fi
 152
 153         exit ${EXIT_OK}
 154 }
 155
 156 hook_up() {
 157         local port="${1}"
 158         assert isset port
 159
 160         # The port must already exist before
 161         # hostapd is started. Otherwise it will
 162         # fail horribly over and over again.
 163         assert device_exists "${port}"
 164
 165         hostapd_start "${port}"
 166 }
 167
 168 hook_down() {
 169         local port="${1}"
 170         assert isset port
 171
 172         hostapd_stop "${port}"
 173 }
 174
 175 hook_hotplug() {
 176         local port="${1}"
 177         assert isset port
 178
 179         case "$(hotplug_action)" in
 180                 add)
 181                         # Create the port when the phy is plugged in
 182                         if hotplug_event_port_uses_phy "${port}"; then
 183                                 hook_create "${port}"
 184                         fi
 185                         ;;
 186
 187                 remove)
 188                         # Stop hostapd
 189                         if hotplug_event_port_is_interface "${port}"; then
 190                                 hostapd_stop "${port}"
 191
 192                                 exit ${EXIT_OK}
 193                         fi
 194                         ;;
 195         esac
 196
 197         exit ${EXIT_NOT_HANDLED}
 198 }