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         for vif in $vifs; do
  77                 nosbeacon=
  78                 config_get ifname "$vif" ifname
  79                 config_get enc "$vif" encryption
  80                 config_get mode "$vif" mode
  81
  82                 [ "$mode" = sta ] && config_get nosbeacon "$device" nosbeacon
  83
  84                 config_get ifname "$vif" ifname
  85                 ifname=$(wlanconfig "$ifname" create wlandev "$device" wlanmode "$mode" ${nosbeacon:+nosbeacon})
  86                 [ $? -ne 0 ] && {
  87                         echo "enable_atheros($device): Failed to set up $mode vif $ifname" >&2
  88                         continue
  89                 }
  90                 config_set "$vif" ifname "$ifname"
  91
  92                 config_get "$device" mode
  93                 iwpriv "$ifname" mode "${mode:-11g}"
  94
  95                 config_get wds "$vif" wds
  96                 case "$wds" in
  97                         1|on|enabled) wds=1;;
  98                         *) wds=0;;
  99                 esac
 100                 iwpriv "$ifname" wds "$wds"
 101
 102                 wpa=
 103                 case "$enc" in
 104                         WEP|wep)
 105                                 for idx in 1 2 3 4; do
 106                                         config_get key "$vif" "key${idx}"
 107                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 108                                 done
 109                                 config_get key "$vif" key
 110                                 iwconfig "$ifname" enc "[${key:-1}]"
 111                         ;;
 112                 esac
 113
 114                 case "$mode" in
 115                         wds)
 116                                 config_get addr "$vif" bssid
 117                                 iwpriv "$ifname" wds_add "$addr"
 118                         ;;
 119                         *)
 120                                 config_get ssid "$vif" ssid
 121                         ;;
 122                 esac
 123                 iwconfig "$ifname" channel "$channel"
 124                 ifconfig "$ifname" up
 125
 126                 local net_cfg bridge
 127                 net_cfg="$(find_net_config "$vif")"
 128                 [ -z "$net_cfg" ] || {
 129                         bridge="$(bridge_interface "$net_cfg")"
 130                         config_set "$vif" bridge "$bridge"
 131                         start_net "$ifname" "$net_cfg"
 132                 }
 133                 case "$mode" in
 134                         ap)
 135                                 hostapd_setup_vif "$vif" madwifi || {
 136                                         echo "enable_atheros($device): Failed to set up wpa for interface $ifname" >&2
 137                                         # make sure this wifi interface won't accidentally stay open without encryption
 138                                         ifconfig "$ifname" down
 139                                         wlanconfig "$ifname" destroy
 140                                         continue
 141                                 }
 142                         ;;
 143                         wds|sta)
 144                                 iwconfig "$ifname" essid "$ssid"
 145                                 # FIXME: implement wpa_supplicant calls here
 146                         ;;
 147                 esac
 148         done
 149 }
 150
 151
 152 detect_atheros() {
 153         cd /proc/sys/dev
 154         [ -d ath ] || return
 155         for dev in wifi*; do
 156                 config_get type "$dev" type
 157                 [ "$type" = atheros ] && return
 158                 cat <<EOF
 159 config wifi-device  $dev
 160         option type     atheros
 161         option channel  5
 162
 163 config wifi-iface
 164         option device   $dev
 165 #       option network  lan
 166         option mode     ap
 167         option ssid     OpenWrt
 168         option hidden   0
 169         option encryption none
 170
 171 EOF
 172         done
 173 }
 174