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