src/functions/functions.phy

   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 PHY_DIR="/sys/class/ieee80211"
  23
  24 function phy_dir() {
  25         local phy=${1}
  26
  27         echo "${PHY_DIR}/${phy}"
  28 }
  29
  30 function phy_exists() {
  31         local phy=${1}
  32         assert isset phy
  33
  34         [ -d "$(phy_dir ${phy})" ]
  35 }
  36
  37 function phy_list() {
  38         local phy
  39
  40         for phy in $(phy_dir)/*; do
  41                 [ -d "${phy}" ] || continue
  42
  43                 basename ${phy}
  44         done
  45 }
  46
  47 function phy_get() {
  48         local info="${1}"
  49         local phy
  50
  51         # As this is already a valid phy, we don't need to search on...
  52         if phy_exists "${info}"; then
  53                 print "${info}"
  54                 return ${EXIT_OK}
  55         fi
  56
  57         # If this is an existing device, we can figure out the name of the
  58         # phy directly.
  59         if device_exists ${info}; then
  60                 phy="$(device_get_phy ${info})"
  61
  62         # If we just got the MAC address we need to walk though all
  63         # available phys and find the right one.
  64         elif mac_is_valid ${info}; then
  65                 local i
  66                 for i in $(phy_list); do
  67                         if [ "${info}" = "$(phy_get_address ${i})" ]; then
  68                                 phy=${i}
  69                                 break
  70                         fi
  71                 done
  72         fi
  73
  74         log DEBUG "Searching for phy = ${info}, found ${phy:-none}"
  75
  76         if [ -z "${phy}" ]; then
  77                 return ${EXIT_ERROR}
  78         fi
  79
  80         echo "${phy}"
  81         return ${EXIT_OK}
  82 }
  83
  84 function phy_get_address() {
  85         local phy=${1}
  86         assert isset phy
  87
  88         local path="$(phy_dir ${phy})/macaddress"
  89         [ -r "${path}" ] || return ${EXIT_ERROR}
  90
  91         print "$(<${path})"
  92 }
  93
  94 function phy_get_devices() {
  95         local phy="${1}"
  96         assert isset phy
  97
  98         local device
  99         for device in $(devices_get_all); do
 100                 local p="$(device_get_phy "${device}")"
 101
 102                 if [ "${phy}" = "${p}" ]; then
 103                         print "${device}"
 104                 fi
 105         done
 106 }