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() {
  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_create() {
  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 ${EXIT_OK}
 140 }
 141
 142 function hook_up() {
 143         local port=${1}
 144         assert isset port
 145
 146         port_settings_read "${port}" ${HOOK_SETTINGS}
 147
 148         # Check if the PHY is present.
 149         local phy=$(phy_get ${PHY})
 150         if ! isset phy; then
 151                 log DEBUG "phy '${PHY}' is not present"
 152                 exit ${EXIT_ERROR}
 153         fi
 154
 155         # Create the wireless device, if it does not exist, yet.
 156         if ! device_exists ${port}; then
 157                 wireless_create ${port} --phy="${phy}" --type="ap" \
 158                         --address="${ADDRESS}"
 159         fi
 160
 161         # Start the hostapd service.
 162         hostapd_start ${port}
 163         local ret=$?
 164
 165         if [ ${ret} -ne ${EXIT_OK} ]; then
 166                 log ERROR "Could not start hostapd on port '${port}': ${ret}"
 167                 exit ${EXIT_ERROR}
 168         fi
 169
 170         exit ${EXIT_OK}
 171 }
 172
 173 function hook_down() {
 174         local port=${1}
 175         assert isset port
 176
 177         # Stop the hostapd daemon.
 178         hostapd_stop ${port}
 179
 180         # Remove the device if it is still present.
 181         if device_exists ${port}; then
 182                 wireless_remove ${port}
 183         fi
 184
 185         exit ${EXIT_OK}
 186 }
 187
 188 function hook_hotplug() {
 189         local port=${1}
 190         assert isset port
 191
 192         local phy=${2}
 193         assert isset phy
 194
 195         assert port_exists ${port}
 196
 197         # Read configuration of port.
 198         port_settings_read "${port}" ${HOOK_SETTINGS}
 199
 200         # Get the address of the phy.
 201         local phy_address=$(phy_get_address ${phy})
 202
 203         # Check if the phy is the same we have
 204         # read from the configuration file.
 205         if [ "${PHY}" = "${phy_address}" ]; then
 206                 wireless_create ${port} --phy="${phy_address}" --type="ap" \
 207                         --address="${ADDRESS}"
 208
 209                 exit ${EXIT_OK}
 210         fi
 211
 212         exit ${EXIT_NOT_HANDLED}
 213 }