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 phy_dir() {
  25         local phy=${1}
  26
  27         echo "${PHY_DIR}/${phy}"
  28 }
  29
  30 phy_exists() {
  31         local phy=${1}
  32         assert isset phy
  33
  34         [ -d "$(phy_dir ${phy})" ]
  35 }
  36
  37 phy_list() {
  38         list_directory "$(phy_dir)"
  39 }
  40
  41 phy_get() {
  42         local info="${1}"
  43         local phy
  44
  45         # As this is already a valid phy, we don't need to search on...
  46         if phy_exists "${info}"; then
  47                 print "${info}"
  48                 return ${EXIT_OK}
  49         fi
  50
  51         # If this is an existing device, we can figure out the name of the
  52         # phy directly.
  53         if device_exists ${info}; then
  54                 phy="$(device_get_phy ${info})"
  55
  56         # If we just got the MAC address we need to walk though all
  57         # available phys and find the right one.
  58         elif mac_is_valid ${info}; then
  59                 local i
  60                 for i in $(phy_list); do
  61                         if [ "${info}" = "$(phy_get_address ${i})" ]; then
  62                                 phy=${i}
  63                                 break
  64                         fi
  65                 done
  66         fi
  67
  68         log DEBUG "Searching for phy = ${info}, found ${phy:-none}"
  69
  70         if [ -z "${phy}" ]; then
  71                 return ${EXIT_ERROR}
  72         fi
  73
  74         echo "${phy}"
  75         return ${EXIT_OK}
  76 }
  77
  78 phy_get_address() {
  79         local phy=${1}
  80         assert isset phy
  81
  82         local path="$(phy_dir ${phy})/macaddress"
  83         [ -r "${path}" ] || return ${EXIT_ERROR}
  84
  85         print "$(<${path})"
  86 }
  87
  88 phy_get_devices() {
  89         local phy="${1}"
  90         assert isset phy
  91
  92         local device
  93         for device in $(device_list); do
  94                 local p="$(device_get_phy "${device}")"
  95
  96                 if [ "${phy}" = "${p}" ]; then
  97                         print "${device}"
  98                 fi
  99         done
 100 }
 101
 102 phy_list_leds() {
 103         local phy="${1}"
 104
 105         # Check if the PHY exists
 106         assert phy_exists "${phy}"
 107
 108         local led
 109         for led in $(list_directory /sys/class/leds); do
 110                 # Get basename of the LED
 111                 led=${led%*/}
 112
 113                 if [[ ${led} =~ ${phy}(:.*)?$ ]]; then
 114                         print "${led}"
 115                 fi
 116         done
 117 }
 118
 119 # This function tries to automatically configure LEDs to
 120 # something useful
 121 phy_leds_autoconf() {
 122         local phy="${1}"
 123         assert isset phy
 124
 125         local led
 126         for led in $(phy_list_leds "${phy}"); do
 127                 # Skip some types of LEDs
 128                 case "${led}" in
 129                         # Pretty much everything we tested from Ralink
 130                         # locked up the kernel after a couple of seconds
 131                         rt*)
 132                                 continue
 133                                 ;;
 134                 esac
 135
 136                 # We try to set the LED into tpt mode (flashing on activity),
 137                 # but will fallback to tx mode if that isn't supported
 138                 local trigger
 139                 for trigger in "${phy}tpt" "${phy}tx"; do
 140                         if led_set_trigger "${led}" "${trigger}"; then
 141                                 break
 142                         fi
 143                 done
 144         done
 145
 146         return ${EXIT_OK}
 147 }