package/base-files/files/sbin/wifi

   1 #!/bin/sh
   2 # Copyright (C) 2006 OpenWrt.org
   3
   4 . /etc/functions.sh
   5
   6 find_net_config() {(
   7         local vif="$1"
   8         local cfg
   9         local ifname
  10
  11         config_get cfg "$vif" network
  12
  13         [ -z "$cfg" ] && {
  14                 include /lib/network
  15                 scan_interfaces
  16
  17                 config_get ifname "$vif" ifname
  18
  19                 cfg="$(find_config "$ifname")"
  20         }
  21         [ -z "$cfg" ] && return 0
  22         echo "$cfg"
  23 )}
  24
  25
  26 bridge_interface() {(
  27         local cfg="$1"
  28         [ -z "$cfg" ] && return 0
  29
  30         include /lib/network
  31         scan_interfaces
  32
  33         config_get iftype "$cfg" type
  34         [ "$iftype" = bridge ] && config_get "$cfg" ifname
  35 )}
  36
  37 wifi_fixup_hwmode() {
  38         local device="$1"
  39         local default="$2"
  40         local hwmode hwmode_11n
  41
  42         config_get channel "$device" channel
  43         config_get hwmode "$device" hwmode
  44         case "$hwmode" in
  45                 11bg) hwmode=bg;;
  46                 11a) hwmode=a;;
  47                 11b) hwmode=b;;
  48                 11g) hwmode=g;;
  49                 11n*)
  50                         hwmode_11n="${hwmode##11n}"
  51                         case "$hwmode" in
  52                                 a|g) ;;
  53                                 default) hwmode_11n="$default"
  54                         esac
  55                         config_set "$device" hwmode_11n "$hwmode_11n"
  56                 ;;
  57                 *)
  58                         hwmode=
  59                         if [ "${channel:-0}" -gt 0 ]; then
  60                                 if [ "${channel:-0}" -gt 14 ]; then
  61                                         hwmode=a
  62                                 else
  63                                         hwmode=g
  64                                 fi
  65                         else
  66                                 hwmode="$default"
  67                         fi
  68                 ;;
  69         esac
  70         config_set "$device" hwmode "$hwmode"
  71 }
  72
  73 wifi_updown() {
  74         [ enable = "$1" ] && wifi_updown disable "$2"
  75         for device in ${2:-$DEVICES}; do (
  76                 config_get disabled "$device" disabled
  77                 [ 1 == "$disabled" ] && {
  78                         echo "'$device' is disabled"
  79                         set disable
  80                 }
  81                 config_get iftype "$device" type
  82                 if eval "type ${1}_$iftype" 2>/dev/null >/dev/null; then
  83                         eval "scan_$iftype '$device'"
  84                         eval "${1}_$iftype '$device'" || echo "$device($iftype): ${1} failed"
  85                 else
  86                         echo "$device($iftype): Interface type not supported"
  87                 fi
  88         ); done
  89 }
  90
  91 wifi_detect() {
  92         for driver in ${2:-$DRIVERS}; do (
  93                 if eval "type detect_$driver" 2>/dev/null >/dev/null; then
  94                         eval "detect_$driver" || echo "$driver: Detect failed" >&2
  95                 else
  96                         echo "$driver: Hardware detection not supported" >&2
  97                 fi
  98         ); done
  99 }
 100
 101 start_net() {(
 102         local iface="$1"
 103         local config="$2"
 104         local vifmac="$3"
 105
 106         [ -f "/var/run/$iface.pid" ] && kill "$(cat /var/run/${iface}.pid)" 2>/dev/null
 107         include /lib/network
 108         scan_interfaces
 109         setup_interface "$iface" "$config" "" "$vifmac"
 110 )}
 111
 112 set_wifi_up() {
 113         local cfg="$1"
 114         local ifname="$2"
 115         uci_set_state wireless "$cfg" up 1
 116         uci_set_state wireless "$cfg" ifname "$ifname"
 117 }
 118
 119 set_wifi_down() {
 120         local cfg="$1"
 121         local vifs vif vifstr
 122
 123         [ -f "/var/run/wifi-${cfg}.pid" ] &&
 124                 kill "$(cat "/var/run/wifi-${cfg}.pid")"
 125         uci_revert_state wireless "$cfg"
 126         config_get vifs "$cfg" vifs
 127         for vif in $vifs; do
 128                 uci_revert_state wireless "$vif"
 129         done
 130 }
 131
 132 scan_wifi() {
 133         local cfgfile="$1"
 134         config_cb() {
 135                 config_get TYPE "$CONFIG_SECTION" TYPE
 136                 case "$TYPE" in
 137                         wifi-device)
 138                                 append DEVICES "$CONFIG_SECTION"
 139                         ;;
 140                         wifi-iface)
 141                                 config_get device "$CONFIG_SECTION" device
 142                                 config_get vifs "$device" vifs
 143                                 append vifs "$CONFIG_SECTION"
 144                                 config_set "$device" vifs "$vifs"
 145                         ;;
 146                 esac
 147         }
 148         config_load "${cfgfile:-wireless}"
 149 }
 150
 151 DEVICES=
 152 DRIVERS=
 153 include /lib/wifi
 154 scan_wifi
 155
 156 case "$1" in
 157         down) wifi_updown "disable" "$2";;
 158         detect) wifi_detect "$2";;
 159         *) wifi_updown "enable" "$2";;
 160 esac