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="${PORT_PATTERN_ACCESSPOINT}"
  25
  26 HOOK_SETTINGS="ADDRESS BROADCAST_SSID CHANNEL MODE PHY SSID"
  27 HOOK_SETTINGS="${HOOK_SETTINGS} ENCRYPTION KEY"
  28
  29 ADDRESS=$(mac_generate)
  30 BROADCAST_SSID=on
  31 CHANNEL=0
  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         # Generate a random MAC address if none is set
  98         if ! isset ADDRESS; then
  99                 ADDRESS="$(mac_generate)"
 100         fi
 101
 102         # MODE must be set
 103         if ! isset MODE; then
 104                 error "--mode is not set"
 105                 return ${EXIT_ERROR}
 106         fi
 107
 108         # Save address of phy do identify it again
 109         PHY=$(phy_get ${PHY})
 110         PHY=$(phy_get_address ${PHY})
 111 }
 112
 113 hook_edit() {
 114         local port=${1}
 115         assert isset port
 116
 117         if ! hook_default_edit "$@"; then
 118                 return ${EXIT_ERROR}
 119         fi
 120
 121         # To apply all changes, we need to restart the port
 122         port_restart "${port}"
 123 }
 124
 125 hook_create() {
 126         local port="${1}"
 127         assert isset port
 128
 129         device_exists "${port}" && exit ${EXIT_OK}
 130
 131         port_settings_read "${port}" ${HOOK_SETTINGS}
 132
 133         # Check if the PHY is present.
 134         local phy=$(phy_get ${PHY})
 135         if ! isset phy; then
 136                 log DEBUG "phy '${PHY}' is not present"
 137                 exit ${EXIT_ERROR}
 138         fi
 139
 140         # Create the wireless device
 141         wireless_create "${port}" \
 142                 --phy="${phy}" \
 143                 --type="ap" \
 144                 --address="${ADDRESS}"
 145
 146         exit ${EXIT_OK}
 147 }
 148
 149 hook_remove() {
 150         local port="${1}"
 151         assert isset port
 152
 153         # Remove the device if present
 154         if device_exists "${port}"; then
 155                 wireless_remove "${port}"
 156         fi
 157
 158         exit ${EXIT_OK}
 159 }
 160
 161 hook_up() {
 162         local port="${1}"
 163         assert isset port
 164
 165         # The port must already exist before
 166         # hostapd is started. Otherwise it will
 167         # fail horribly over and over again.
 168         assert device_exists "${port}"
 169
 170         hostapd_start "${port}"
 171 }
 172
 173 hook_down() {
 174         local port="${1}"
 175         assert isset port
 176
 177         hostapd_stop "${port}"
 178 }
 179
 180 hook_hotplug() {
 181         local port="${1}"
 182         assert isset port
 183
 184         case "$(hotplug_action)" in
 185                 add)
 186                         # Create the port when the phy is plugged in
 187                         if hotplug_event_port_uses_phy "${port}"; then
 188                                 hook_create "${port}"
 189                         fi
 190                         ;;
 191
 192                 remove)
 193                         # Stop hostapd
 194                         if hotplug_event_port_is_interface "${port}"; then
 195                                 hostapd_stop "${port}"
 196
 197                                 exit ${EXIT_OK}
 198                         fi
 199                         ;;
 200         esac
 201
 202         exit ${EXIT_NOT_HANDLED}
 203 }