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)
  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 }"
  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
  54         local first=1
  55         for vif in $vifs; do
  56                 config_get ifname "$vif" ifname
  57                 config_get enc "$vif" encryption
  58                 config_get eap_type "$vif" eap_type
  59                 config_get mode "$vif" mode
  60
  61                 config_get ifname "$vif" ifname
  62                 [ $? -ne 0 ] && {
  63                         echo "enable_mac80211($device): Failed to set up $mode vif $ifname" >&2
  64                         continue
  65                 }
  66                 config_set "$vif" ifname "$ifname"
  67
  68                 [ "$first" = 1 ] && {
  69                         # only need to change freq band and channel on the first vif
  70                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
  71                         if [ "$mode" = adhoc ]; then
  72                                 iwlist "$ifname" scan >/dev/null 2>/dev/null
  73                                 sleep 1
  74                                 iwconfig "$ifname" mode ad-hoc >/dev/null 2>/dev/null
  75                         fi
  76                         ifconfig "$ifname" up
  77                         sleep 1
  78                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
  79                 }
  80
  81                 wpa=
  82                 case "$enc" in
  83                         WEP|wep)
  84                                 for idx in 1 2 3 4; do
  85                                         config_get key "$vif" "key${idx}"
  86                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
  87                                 done
  88                                 config_get key "$vif" key
  89                                 key="${key:-1}"
  90                                 case "$key" in
  91                                         [1234]) iwconfig "$ifname" enc "[$key]";;
  92                                         *) iwconfig "$ifname" enc "$key";;
  93                                 esac
  94                         ;;
  95                         PSK|psk|PSK2|psk2)
  96                                 config_get key "$vif" key
  97                         ;;
  98                 esac
  99
 100                 case "$mode" in
 101                         adhoc)
 102                                 config_get addr "$vif" bssid
 103                                 [ -z "$addr" ] || {
 104                                         iwconfig "$ifname" ap "$addr"
 105                                 }
 106                         ;;
 107                 esac
 108                 config_get ssid "$vif" ssid
 109
 110                 config_get txpwr "$vif" txpower
 111                 if [ -n "$txpwr" ]; then
 112                         iwconfig "$ifname" txpower "${txpwr%%.*}"
 113                 fi
 114
 115                 config_get frag "$vif" frag
 116                 if [ -n "$frag" ]; then
 117                         iwconfig "$ifname" frag "${frag%%.*}"
 118                 fi
 119
 120                 config_get rts "$vif" rts
 121                 if [ -n "$rts" ]; then
 122                         iwconfig "$ifname" rts "${rts%%.*}"
 123                 fi
 124
 125                 ifconfig "$ifname" up
 126                 iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 127
 128                 local net_cfg bridge
 129                 net_cfg="$(find_net_config "$vif")"
 130                 [ -z "$net_cfg" ] || {
 131                         bridge="$(bridge_interface "$net_cfg")"
 132                         config_set "$vif" bridge "$bridge"
 133                         start_net "$ifname" "$net_cfg"
 134                 }
 135                 iwconfig "$ifname" essid "$ssid"
 136                 set_wifi_up "$vif" "$ifname"
 137                 case "$mode" in
 138                         ap)
 139                                 if eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 140                                         hostapd_setup_vif "$vif" nl80211 || {
 141                                                 echo "enable_mac80211($device): Failed to set up wpa for interface $ifname" >&2
 142                                                 # make sure this wifi interface won't accidentally stay open without encryption
 143                                                 ifconfig "$ifname" down
 144                                                 continue
 145                                         }
 146                                 fi
 147                         ;;
 148                         sta)
 149                                 if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
 150                                         wpa_supplicant_setup_vif "$vif" wext || {
 151                                                 echo "enable_mac80211($device): Failed to set up wpa_supplicant for interface $ifname" >&2
 152                                                 # make sure this wifi interface won't accidentally stay open without encryption
 153                                                 ifconfig "$ifname" down
 154                                                 continue
 155                                         }
 156                                 fi
 157                         ;;
 158                 esac
 159                 first=0
 160         done
 161 }
 162
 163
 164 detect_mac80211() {
 165         cd /sys/class/net
 166         for dev in $(ls -d wlan* 2>&-); do
 167                 config_get type "$dev" type
 168                 [ "$type" = mac80211 ] && return
 169                 cat <<EOF
 170 config wifi-device  $dev
 171         option type     mac80211
 172         option channel  5
 173
 174         # REMOVE THIS LINE TO ENABLE WIFI:
 175         option disabled 1
 176
 177 config wifi-iface
 178         option device   $dev
 179         option network  lan
 180         option mode     ap
 181         option ssid     OpenWrt
 182         option encryption none
 183 EOF
 184         done
 185 }