package/madwifi/files/lib/wifi/madwifi.sh

   1 #!/bin/sh
   2 append DRIVERS "atheros"
   3
   4 scan_atheros() {
   5         local device="$1"
   6         local wds
   7         local adhoc sta ap
   8
   9         config_get vifs "$device" vifs
  10         for vif in $vifs; do
  11
  12                 config_get ifname "$vif" ifname
  13                 config_set "$vif" ifname "${ifname:-ath}"
  14
  15                 config_get mode "$vif" mode
  16                 case "$mode" in
  17                         adhoc|sta|ap)
  18                                 append $mode "$vif"
  19                         ;;
  20                         wds)
  21                                 config_get addr "$vif" bssid
  22                                 config_get ssid "$vif" ssid
  23                                 [ -z "$addr" -a -n "$ssid" ] && {
  24                                         config_set "$vif" wds 1
  25                                         config_set "$vif" mode sta
  26                                         mode="sta"
  27                                         addr="$ssid"
  28                                 }
  29                                 ${addr:+append $mode "$vif"}
  30                         ;;
  31                         *) echo "$device($vif): Invalid mode, ignored."; continue;;
  32                 esac
  33         done
  34
  35         case "${adhoc:+1}:${sta:+1}:${ap+1}" in
  36                 # valid mode combinations
  37                 1::) wds="";;
  38                 :1:1)config_set "$device" nosbeacon 1;; # AP+STA, can't use beacon timers for STA
  39                 :1:);;
  40                 ::1);;
  41                 :::);;
  42                 *) echo "$device: Invalid mode combination in config"; return 1;;
  43         esac
  44
  45         config_set "$device" vifs "${ap:+$ap }${adhoc:+$adhoc }${sta:+$sta }${wds:+$wds }"
  46 }
  47
  48
  49 disable_atheros() (
  50         local device="$1"
  51
  52         # kill all running hostapd and wpa_supplicant processes that
  53         # are running on atheros vifs
  54         for pid in `pidof hostapd wpa_supplicant`; do
  55                 grep ath /proc/$pid/cmdline >/dev/null && \
  56                         kill $pid
  57         done
  58
  59         include /lib/network
  60         cd /proc/sys/net
  61         for dev in *; do
  62                 grep "$device" "$dev/%parent" >/dev/null 2>/dev/null && {
  63                         ifconfig "$dev" down
  64                         unbridge "$dev"
  65                         wlanconfig "$dev" destroy
  66                 }
  67         done
  68         return 0
  69 )
  70
  71 enable_atheros() {
  72         config_get channel "$device" channel
  73         config_get vifs "$device" vifs
  74
  75         disable_atheros "$device"
  76         local first=1
  77         for vif in $vifs; do
  78                 nosbeacon=
  79                 config_get ifname "$vif" ifname
  80                 config_get enc "$vif" encryption
  81                 config_get mode "$vif" mode
  82
  83                 [ "$mode" = sta ] && config_get nosbeacon "$device" nosbeacon
  84
  85                 config_get ifname "$vif" ifname
  86                 ifname=$(wlanconfig "$ifname" create wlandev "$device" wlanmode "$mode" ${nosbeacon:+nosbeacon})
  87                 [ $? -ne 0 ] && {
  88                         echo "enable_atheros($device): Failed to set up $mode vif $ifname" >&2
  89                         continue
  90                 }
  91                 config_set "$vif" ifname "$ifname"
  92
  93                 [ "$first" = 1 ] && {
  94                         # only need to change freq band and channel on the first vif
  95                         config_get "$device" mode
  96                         pureg=0
  97                         case "$mode" in
  98                                 *b) mode=11b;;
  99                                 *bg) mode=11g;;
 100                                 *g) mode=11g; pureg=1;;
 101                                 *a) mode=11a;;
 102                                 *) mode=11g;;
 103                         esac
 104                         iwconfig "$ifname" channel 0
 105                         iwpriv "$ifname" mode "$mode"
 106                         iwpriv "$ifname" pureg "$pureg"
 107                         iwconfig "$ifname" channel "$channel"
 108                 }
 109
 110                 config_get wds "$vif" wds
 111                 case "$wds" in
 112                         1|on|enabled) wds=1;;
 113                         *) wds=0;;
 114                 esac
 115                 iwpriv "$ifname" wds "$wds"
 116
 117                 wpa=
 118                 case "$enc" in
 119                         WEP|wep)
 120                                 for idx in 1 2 3 4; do
 121                                         config_get key "$vif" "key${idx}"
 122                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 123                                 done
 124                                 config_get key "$vif" key
 125                                 iwconfig "$ifname" enc "[${key:-1}]"
 126                         ;;
 127                 esac
 128
 129                 case "$mode" in
 130                         wds)
 131                                 config_get addr "$vif" bssid
 132                                 iwpriv "$ifname" wds_add "$addr"
 133                         ;;
 134                         *)
 135                                 config_get ssid "$vif" ssid
 136                         ;;
 137                 esac
 138                 ifconfig "$ifname" up
 139
 140                 local net_cfg bridge
 141                 net_cfg="$(find_net_config "$vif")"
 142                 [ -z "$net_cfg" ] || {
 143                         bridge="$(bridge_interface "$net_cfg")"
 144                         config_set "$vif" bridge "$bridge"
 145                         start_net "$ifname" "$net_cfg"
 146                 }
 147                 iwconfig "$ifname" essid "$ssid"
 148                 case "$mode" in
 149                         ap)
 150                                 hostapd_setup_vif "$vif" madwifi || {
 151                                         echo "enable_atheros($device): Failed to set up wpa for interface $ifname" >&2
 152                                         # make sure this wifi interface won't accidentally stay open without encryption
 153                                         ifconfig "$ifname" down
 154                                         wlanconfig "$ifname" destroy
 155                                         continue
 156                                 }
 157                         ;;
 158                         wds|sta)
 159                                 # FIXME: implement wpa_supplicant calls here
 160                         ;;
 161                 esac
 162                 first=0
 163         done
 164 }
 165
 166
 167 detect_atheros() {
 168         cd /proc/sys/dev
 169         [ -d ath ] || return
 170         for dev in wifi*; do
 171                 config_get type "$dev" type
 172                 [ "$type" = atheros ] && return
 173                 cat <<EOF
 174 config wifi-device  $dev
 175         option type     atheros
 176         option channel  5
 177
 178 config wifi-iface
 179         option device   $dev
 180 #       option network  lan
 181         option mode     ap
 182         option ssid     OpenWrt
 183         option hidden   0
 184         option encryption none
 185
 186 EOF
 187         done
 188 }
 189