functions.wpa_supplicant

   1 #!/bin/bash
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2012  IPFire Network Development Team                         #
   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 function wpa_supplicant_config_write() {
  23         local device=${1}
  24         shift
  25
  26         assert isset device
  27
  28         local ssid
  29         local encryption
  30         local key
  31
  32         while [ $# -gt 0 ]; do
  33                 case "${1}" in
  34                         --ssid=*)
  35                                 ssid=${1#--ssid=}
  36                                 ;;
  37                         --encryption=*)
  38                                 encryption=${1#--encryption=}
  39                                 ;;
  40                         --key=*)
  41                                 key=${1#--key=}
  42                                 ;;
  43                 esac
  44                 shift
  45         done
  46
  47         assert isset ssid
  48         assert isset encryption
  49         assert isset key
  50
  51         cat <<EOF
  52 # WPA supplicant configuration for ${device}.
  53 # DO NOT EDIT.
  54
  55 network={
  56         ssid="${ssid}"
  57         proto=RSN
  58         key_mgmt=${encryption}
  59         pairwise=CCMP
  60         group=TKIP
  61         psk="${key}"
  62 }
  63
  64 EOF
  65 }
  66
  67 function wpa_supplicant_config_dir() {
  68         local device=${1}
  69
  70         assert isset device
  71
  72         echo "${RUN_DIR}/wireless/${device}"
  73 }
  74
  75 function wpa_supplicant_start() {
  76         local device=${1}
  77         shift
  78
  79         assert device_exists ${device}
  80
  81         local config_dir=$(wpa_supplicant_config_dir ${device})
  82         mkdir -p ${config_dir}
  83
  84         local config_file=${config_dir}/config
  85         wpa_supplicant_config_write ${device} $@ > ${config_file}
  86
  87         wpa_supplicant -i ${device} -D wext -B -c ${config_file} \
  88                 -P ${config_dir}/pid
  89 }
  90
  91 function wpa_supplicant_stop() {
  92         local device=${1}
  93
  94         assert isset device
  95
  96         local pid=$(wpa_supplicant_get_pid ${device})
  97
  98         if isset pid; then
  99                 process_kill ${pid}
 100         else
 101                 warning_log "Could not find pid file for wpa_supplicant process running for ${device}."
 102         fi
 103
 104         rm -rf $(wpa_supplicant_config_dir ${device})
 105 }
 106
 107 function wpa_supplicant_get_pid() {
 108         local device=${1}
 109
 110         assert isset device
 111
 112         local pid_file="$(wpa_supplicant_config_dir ${device})/pid"
 113
 114         [ -e "${pid_file}" ] || return ${EXIT_ERROR}
 115
 116         cat ${pid_file} 2>/dev/null
 117         return ${EXIT_OK}
 118 }
 119
 120 function wpa_supplicant_is_running() {
 121         local device=${1}
 122
 123         assert isset device
 124
 125         local pid=$(wpa_supplicant_get_pid ${device})
 126
 127         if isset pid && [ -d "/proc/${pid}" ]; then
 128                 return ${EXIT_OK}
 129         fi
 130
 131         return ${EXIT_ERROR}
 132 }
 133
 134 function wpa_supplicant_get_pid() {
 135         local zone=${1}
 136         shift
 137
 138
 139 }
 140
 141 function wpa_supplicant_stop() {
 142         local zone=${1}
 143         shift
 144
 145         killall wpa_supplicant
 146 }