package/mac80211/files/lib/wifi/mac80211.sh

   1 #!/bin/sh
   2 append DRIVERS "mac80211"
   3
   4 scan_mac80211() {
   5         local device="$1"
   6         local adhoc sta ap
   7
   8         config_get vifs "$device" vifs
   9         for vif in $vifs; do
  10
  11                 config_get ifname "$vif" ifname
  12                 config_set "$vif" ifname "${ifname:-$device}"
  13
  14                 config_get mode "$vif" mode
  15                 case "$mode" in
  16                         adhoc|sta|ap|monitor)
  17                                 append $mode "$vif"
  18                         ;;
  19                         *) echo "$device($vif): Invalid mode, ignored."; continue;;
  20                 esac
  21         done
  22
  23         config_set "$device" vifs "${ap:+$ap }${adhoc:+$adhoc }${ahdemo:+$ahdemo }${sta:+$sta }${wds:+$wds }${monitor:+$monitor}"
  24 }
  25
  26
  27 disable_mac80211() (
  28         local device="$1"
  29
  30         set_wifi_down "$device"
  31         # kill all running hostapd and wpa_supplicant processes that
  32         # are running on atheros/mac80211 vifs
  33         for pid in `pidof hostapd wpa_supplicant`; do
  34                 grep wlan /proc/$pid/cmdline >/dev/null && \
  35                         kill $pid
  36         done
  37
  38         include /lib/network
  39         cd /proc/sys/net
  40         for dev in *; do
  41                 grep "$device" "$dev/%parent" >/dev/null 2>/dev/null && {
  42                         ifconfig "$dev" down
  43                         unbridge "$dev"
  44                 }
  45         done
  46         return 0
  47 )
  48
  49 enable_mac80211() {
  50         local device="$1"
  51         config_get channel "$device" channel
  52         config_get vifs "$device" vifs
  53         config_get txpower "$device" txpower
  54
  55         local first=1
  56         for vif in $vifs; do
  57                 ifconfig "$ifname" down 2>/dev/null
  58                 config_get ifname "$vif" ifname
  59                 config_get enc "$vif" encryption
  60                 config_get eap_type "$vif" eap_type
  61                 config_get mode "$vif" mode
  62
  63                 config_get ifname "$vif" ifname
  64                 [ $? -ne 0 ] && {
  65                         echo "enable_mac80211($device): Failed to set up $mode vif $ifname" >&2
  66                         continue
  67                 }
  68                 config_set "$vif" ifname "$ifname"
  69
  70                 [ "$first" = 1 ] && {
  71                         # only need to change freq band and channel on the first vif
  72                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
  73                         if [ "$mode" = adhoc ]; then
  74                                 iwlist "$ifname" scan >/dev/null 2>/dev/null
  75                                 sleep 1
  76                                 iwconfig "$ifname" mode ad-hoc >/dev/null 2>/dev/null
  77                         fi
  78                         sleep 1
  79                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
  80                 }
  81                 if [ "$mode" = sta ]; then
  82                         iwconfig "$ifname" mode managed >/dev/null 2>/dev/null
  83                 else
  84                         iwconfig "$ifname" mode $mode >/dev/null 2>/dev/null
  85                 fi
  86
  87                 wpa=
  88                 case "$enc" in
  89                         WEP|wep)
  90                                 for idx in 1 2 3 4; do
  91                                         config_get key "$vif" "key${idx}"
  92                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
  93                                 done
  94                                 config_get key "$vif" key
  95                                 key="${key:-1}"
  96                                 case "$key" in
  97                                         [1234]) iwconfig "$ifname" enc "[$key]";;
  98                                         *) iwconfig "$ifname" enc "$key";;
  99                                 esac
 100                         ;;
 101                         PSK|psk|PSK2|psk2)
 102                                 config_get key "$vif" key
 103                         ;;
 104                 esac
 105
 106                 case "$mode" in
 107                         adhoc)
 108                                 config_get addr "$vif" bssid
 109                                 [ -z "$addr" ] || {
 110                                         iwconfig "$ifname" ap "$addr"
 111                                 }
 112                         ;;
 113                 esac
 114                 config_get ssid "$vif" ssid
 115
 116                 config_get vif_txpower "$vif" txpower
 117                 # use vif_txpower (from wifi-iface) to override txpower (from
 118                 # wifi-device) if the latter doesn't exist
 119                 txpower="${txpower:-$vif_txpower}"
 120                 [ -z "$txpower" ] || iwconfig "$ifname" txpower "${txpower%%.*}"
 121
 122                 config_get frag "$vif" frag
 123                 if [ -n "$frag" ]; then
 124                         iwconfig "$ifname" frag "${frag%%.*}"
 125                 fi
 126
 127                 config_get rts "$vif" rts
 128                 if [ -n "$rts" ]; then
 129                         iwconfig "$ifname" rts "${rts%%.*}"
 130                 fi
 131
 132                 ifconfig "$ifname" up
 133                 iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 134
 135                 local net_cfg bridge
 136                 net_cfg="$(find_net_config "$vif")"
 137                 [ -z "$net_cfg" ] || {
 138                         bridge="$(bridge_interface "$net_cfg")"
 139                         config_set "$vif" bridge "$bridge"
 140                         start_net "$ifname" "$net_cfg"
 141                 }
 142                 iwconfig "$ifname" essid "$ssid"
 143                 set_wifi_up "$vif" "$ifname"
 144                 case "$mode" in
 145                         ap)
 146                                 if eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 147                                         hostapd_setup_vif "$vif" nl80211 || {
 148                                                 echo "enable_mac80211($device): Failed to set up wpa for interface $ifname" >&2
 149                                                 # make sure this wifi interface won't accidentally stay open without encryption
 150                                                 ifconfig "$ifname" down
 151                                                 continue
 152                                         }
 153                                 fi
 154                         ;;
 155                         sta)
 156                                 if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
 157                                         wpa_supplicant_setup_vif "$vif" wext || {
 158                                                 echo "enable_mac80211($device): Failed to set up wpa_supplicant for interface $ifname" >&2
 159                                                 # make sure this wifi interface won't accidentally stay open without encryption
 160                                                 ifconfig "$ifname" down
 161                                                 continue
 162                                         }
 163                                 fi
 164                         ;;
 165                 esac
 166                 first=0
 167         done
 168 }
 169
 170
 171 detect_mac80211() {
 172         cd /sys/class/net
 173         for dev in $(ls -d wlan* 2>&-); do
 174                 config_get type "$dev" type
 175                 [ "$type" = mac80211 ] && return
 176                 cat <<EOF
 177 config wifi-device  $dev
 178         option type     mac80211
 179         option channel  5
 180
 181         # REMOVE THIS LINE TO ENABLE WIFI:
 182         option disabled 1
 183
 184 config wifi-iface
 185         option device   $dev
 186         option network  lan
 187         option mode     ap
 188         option ssid     OpenWrt
 189         option encryption none
 190 EOF
 191         done
 192 }