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                 11a) hwmode=a;;
  46                 11b) hwmode=b;;
  47                 11g) hwmode=g;;
  48                 11n*)
  49                         hwmode_11n="${hwmode##11n}"
  50                         case "$hwmode" in
  51                                 a|g) ;;
  52                                 default) hwmode_11n="$default"
  53                         esac
  54                         config_set "$device" hwmode_11n "$hwmode_11n"
  55                 ;;
  56                 *)
  57                         hwmode=
  58                         if [ "${channel:-0}" -gt 0 ]; then
  59                                 if [ "${channel:-0}" -gt 14 ]; then
  60                                         hwmode=a
  61                                 else
  62                                         hwmode=g
  63                                 fi
  64                         else
  65                                 hwmode="$default"
  66                         fi
  67                 ;;
  68         esac
  69         config_set "$device" hwmode "$hwmode"
  70 }
  71
  72 wifi_updown() {
  73         [ enable = "$1" ] && wifi_updown disable "$2"
  74         for device in ${2:-$DEVICES}; do (
  75                 config_get disabled "$device" disabled
  76                 [ 1 == "$disabled" ] && {
  77                         echo "'$device' is disabled"
  78                         set disable
  79                 }
  80                 config_get iftype "$device" type
  81                 if eval "type ${1}_$iftype" 2>/dev/null >/dev/null; then
  82                         eval "scan_$iftype '$device'"
  83                         eval "${1}_$iftype '$device'" || echo "$device($iftype): ${1} failed"
  84                 else
  85                         echo "$device($iftype): Interface type not supported"
  86                 fi
  87         ); done
  88 }
  89
  90 wifi_detect() {
  91         for driver in ${2:-$DRIVERS}; do (
  92                 if eval "type detect_$driver" 2>/dev/null >/dev/null; then
  93                         eval "detect_$driver" || echo "$driver: Detect failed" >&2
  94                 else
  95                         echo "$driver: Hardware detection not supported" >&2
  96                 fi
  97         ); done
  98 }
  99
 100 start_net() {(
 101         local iface="$1"
 102         local config="$2"
 103         local vifmac="$3"
 104
 105         [ -f "/var/run/$iface.pid" ] && kill "$(cat /var/run/${iface}.pid)" 2>/dev/null
 106         include /lib/network
 107         scan_interfaces
 108         setup_interface "$iface" "$config" "" "$vifmac"
 109 )}
 110
 111 set_wifi_up() {
 112         local cfg="$1"
 113         local ifname="$2"
 114         uci_set_state wireless "$cfg" up 1
 115         uci_set_state wireless "$cfg" ifname "$ifname"
 116 }
 117
 118 set_wifi_down() {
 119         local cfg="$1"
 120         local vifs vif vifstr
 121
 122         [ -f "/var/run/wifi-${cfg}.pid" ] &&
 123                 kill "$(cat "/var/run/wifi-${cfg}.pid")"
 124         uci_revert_state wireless "$cfg"
 125         config_get vifs "$cfg" vifs
 126         for vif in $vifs; do
 127                 uci_revert_state wireless "$vif"
 128         done
 129 }
 130
 131 scan_wifi() {
 132         local cfgfile="$1"
 133         config_cb() {
 134                 config_get TYPE "$CONFIG_SECTION" TYPE
 135                 case "$TYPE" in
 136                         wifi-device)
 137                                 append DEVICES "$CONFIG_SECTION"
 138                         ;;
 139                         wifi-iface)
 140                                 config_get device "$CONFIG_SECTION" device
 141                                 config_get vifs "$device" vifs
 142                                 append vifs "$CONFIG_SECTION"
 143                                 config_set "$device" vifs "$vifs"
 144                         ;;
 145                 esac
 146         }
 147         config_load "${cfgfile:-wireless}"
 148 }
 149
 150 DEVICES=
 151 DRIVERS=
 152 include /lib/wifi
 153 scan_wifi
 154
 155 case "$1" in
 156         down) wifi_updown "disable" "$2";;
 157         detect) wifi_detect "$2";;
 158         *) wifi_updown "enable" "$2";;
 159 esac