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_PORT_PATTERN="${PORT_PATTERN_ACCESSPOINT}"
  25
  26 HOOK_SETTINGS="HOOK ADDRESS BROADCAST_SSID CHANNEL MODE PHY SSID"
  27 HOOK_SETTINGS="${HOOK_SETTINGS} ENCRYPTION KEY"
  28
  29 ADDRESS=$(mac_generate)
  30 BROADCAST_SSID=on
  31 CHANNEL=1
  32 ENCRYPTION=""
  33 KEY=""
  34 SSID=
  35
  36 hook_check_settings() {
  37         assert isset ADDRESS
  38         assert ismac ADDRESS
  39         assert isset BROADCAST_SSID
  40         assert isbool BROADCAST_SSID
  41         assert isset CHANNEL
  42         assert isset MODE
  43         assert isoneof MODE ${HOSTAPD_SUPPORTED_MODES}
  44         assert isset PHY
  45         assert ismac PHY
  46         assert isset SSID
  47
  48         if isset ENCRYPTION; then
  49                 assert isoneof ENCRYPTION WPA WPA2 WPA/WPA2
  50
  51                 assert isset KEY
  52                 assert [ ${#KEY} -ge 8 ]
  53                 assert [ ${#KEY} -le 63 ]
  54         fi
  55 }
  56
  57 hook_parse_cmdline() {
  58         while [ $# -gt 0 ]; do
  59                 case "${1}" in
  60                         --broadcast-ssid=*)
  61                                 BROADCAST_SSID=$(cli_get_val "${1}")
  62                                 ;;
  63                         --channel=*)
  64                                 CHANNEL=$(cli_get_val "${1}")
  65                                 ;;
  66                         --encryption=*)
  67                                 ENCRYPTION=$(cli_get_val "${1}")
  68                                 ;;
  69                         --key=*)
  70                                 KEY=$(cli_get_val "${1}")
  71                                 ;;
  72                         --mac=*)
  73                                 ADDRESS=$(cli_get_val "${1}")
  74                                 ;;
  75                         --mode=*)
  76                                 MODE=$(cli_get_val "${1}")
  77
  78                                 if ! isoneof MODE ${HOSTAPD_SUPPORTED_MODES}; then
  79                                         error "Unsupported mode: ${MODE}"
  80                                         error "Mode must be one of ${HOSTAPD_SUPPORTED_MODES}"
  81                                         return ${EXIT_ERROR}
  82                                 fi
  83                                 ;;
  84                         --phy=*)
  85                                 PHY=$(cli_get_val "${1}")
  86                                 ;;
  87                         --ssid=*)
  88                                 SSID=$(cli_get_val "${1}")
  89                                 ;;
  90                         *)
  91                                 warning "Ignoring unknown argument '${1}'"
  92                                 ;;
  93                 esac
  94                 shift
  95         done
  96
  97         # MODE must be set
  98         if ! isset MODE; then
  99                 error "--mode is not set"
 100                 return ${EXIT_ERROR}
 101         fi
 102
 103         # Save address of phy do identify it again
 104         PHY=$(phy_get ${PHY})
 105         PHY=$(phy_get_address ${PHY})
 106 }
 107
 108 hook_edit() {
 109         local port=${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 }