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|ahdemo|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}:${ap+1}" in
  36                 # valid mode combinations
  37                 1::) wds="";;
  38                 1::1);;
  39                 :1:1)config_set "$device" nosbeacon 1;; # AP+STA, can't use beacon timers for STA
  40                 :1:);;
  41                 ::1);;
  42                 ::);;
  43                 *) echo "$device: Invalid mode combination in config"; return 1;;
  44         esac
  45
  46         config_set "$device" vifs "${ap:+$ap }${adhoc:+$adhoc }${ahdemo:+$ahdemo }${sta:+$sta }${wds:+$wds }"
  47 }
  48
  49
  50 disable_atheros() (
  51         local device="$1"
  52
  53         # kill all running hostapd and wpa_supplicant processes that
  54         # are running on atheros vifs
  55         for pid in `pidof hostapd wpa_supplicant`; do
  56                 grep ath /proc/$pid/cmdline >/dev/null && \
  57                         kill $pid
  58         done
  59
  60         include /lib/network
  61         cd /proc/sys/net
  62         for dev in *; do
  63                 grep "$device" "$dev/%parent" >/dev/null 2>/dev/null && {
  64                         ifconfig "$dev" down
  65                         unbridge "$dev"
  66                         wlanconfig "$dev" destroy
  67                 }
  68         done
  69         return 0
  70 )
  71
  72 enable_atheros() {
  73         config_get channel "$device" channel
  74         config_get vifs "$device" vifs
  75
  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 agmode "$device" mode
  96                         pureg=0
  97                         case "$agmode" in
  98                                 *b) agmode=11b;;
  99                                 *bg) agmode=11g;;
 100                                 *g) agmode=11g; pureg=1;;
 101                                 *a) agmode=11a;;
 102                                 *) agmode=auto;;
 103                         esac
 104                         iwconfig "$ifname" channel 0 >/dev/null 2>/dev/null
 105                         ifconfig "$ifname" up
 106                         sleep 1
 107                         iwpriv "$ifname" mode "$agmode"
 108                         iwpriv "$ifname" pureg "$pureg"
 109                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 110                 }
 111
 112                 config_get_bool hidden "$vif" hidden 0
 113                 iwpriv "$ifname" hide_ssid "$hidden"
 114
 115                 config_get_bool ff "$vif" ff 0
 116                 iwpriv "$ifname" ff "$ff"
 117
 118                 config_get wds "$vif" wds
 119                 case "$wds" in
 120                         1|on|enabled) wds=1;;
 121                         *) wds=0;;
 122                 esac
 123                 iwpriv "$ifname" wds "$wds"
 124
 125                 wpa=
 126                 case "$enc" in
 127                         WEP|wep)
 128                                 for idx in 1 2 3 4; do
 129                                         config_get key "$vif" "key${idx}"
 130                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 131                                 done
 132                                 config_get key "$vif" key
 133                                 key="${key:-1}"
 134                                 case "$key" in
 135                                         [1234]) iwconfig "$ifname" enc "[$key]";;
 136                                         *) iwconfig "$ifname" enc "$key";;
 137                                 esac
 138                         ;;
 139                         PSK|psk|PSK2|psk2)
 140                                 config_get key "$vif" key
 141                         ;;
 142                 esac
 143
 144                 case "$mode" in
 145                         wds)
 146                                 config_get addr "$vif" bssid
 147                                 iwpriv "$ifname" wds_add "$addr"
 148                         ;;
 149                         adhoc|ahdemo)
 150                                 config_get addr "$vif" bssid
 151                                 [ -z "$addr" ] || {
 152                                         iwconfig "$ifname" ap "$addr"
 153                                 }
 154                         ;;
 155                 esac
 156                 config_get ssid "$vif" ssid
 157
 158                 [ "$mode" = "sta" ] && {
 159                         config_get_bool bgscan "$vif" bgscan 1
 160                         iwpriv "$ifname" bgscan "$bgscan"
 161                 }
 162
 163                 config_get_bool antdiv "$device" diversity 1
 164                 sysctl -w dev."$device".diversity="$antdiv" >&-
 165
 166                 config_get antrx "$device" rxantenna
 167                 if [ -n "$antrx" ]; then
 168                         sysctl -w dev."$device".rxantenna="$antrx" >&-
 169                 fi
 170
 171                 config_get anttx "$device" txantenna
 172                 if [ -n "$anttx" ]; then
 173                         sysctl -w dev."$device".txantenna="$anttx" >&-
 174                 fi
 175
 176                 config_get distance "$device" distance
 177                 if [ -n "$distance" ]; then
 178                         athctrl -i "$device" -d "$distance" >&-
 179                 fi
 180
 181                 config_get txpwr "$vif" txpower
 182                 if [ -n "$txpwr" ]; then
 183                         iwconfig "$ifname" txpower "${txpwr%%.*}"
 184                 fi
 185
 186                 config_get frag "$vif" frag
 187                 if [ -n "$frag" ]; then
 188                         iwconfig "$ifname" frag "${frag%%.*}"
 189                 fi
 190
 191                 config_get rts "$vif" rts
 192                 if [ -n "$rts" ]; then
 193                         iwconfig "$ifname" rts "${rts%%.*}"
 194                 fi
 195
 196                 ifconfig "$ifname" up
 197                 iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 198
 199                 local net_cfg bridge
 200                 net_cfg="$(find_net_config "$vif")"
 201                 [ -z "$net_cfg" ] || {
 202                         bridge="$(bridge_interface "$net_cfg")"
 203                         config_set "$vif" bridge "$bridge"
 204                         start_net "$ifname" "$net_cfg"
 205                 }
 206                 iwconfig "$ifname" essid "$ssid"
 207                 case "$mode" in
 208                         ap)
 209                                 config_get_bool isolate "$vif" isolate 0
 210                                 iwpriv "$ifname" ap_bridge "$((isolate^1))"
 211
 212                                 if eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 213                                         hostapd_setup_vif "$vif" madwifi || {
 214                                                 echo "enable_atheros($device): Failed to set up wpa for interface $ifname" >&2
 215                                                 # make sure this wifi interface won't accidentally stay open without encryption
 216                                                 ifconfig "$ifname" down
 217                                                 wlanconfig "$ifname" destroy
 218                                                 continue
 219                                         }
 220                                 fi
 221                         ;;
 222                         wds|sta)
 223                                 case "$enc" in
 224                                         PSK|psk|PSK2|psk2)
 225                                                 case "$enc" in
 226                                                         PSK|psk)
 227                                                                 proto='proto=WPA';;
 228                                                         PSK2|psk2)
 229                                                                 proto='proto=RSN';;
 230                                                 esac
 231                                                 cat > /var/run/wpa_supplicant-$ifname.conf <<EOF
 232 ctrl_interface=/var/run/wpa_supplicant
 233 network={
 234         scan_ssid=1
 235         ssid="$ssid"
 236         key_mgmt=WPA-PSK
 237         $proto
 238         psk="$key"
 239 }
 240 EOF
 241                                         ;;
 242                                         WPA|wpa|WPA2|wpa2)
 243                                                 #add wpa_supplicant calls here
 244                                         ;;
 245                                 esac
 246                                 [ -z "$proto" ] || wpa_supplicant ${bridge:+ -b $bridge} -Bw -D wext -i "$ifname" -c /var/run/wpa_supplicant-$ifname.conf
 247                         ;;
 248                 esac
 249                 first=0
 250         done
 251 }
 252
 253
 254 detect_atheros() {
 255         cd /proc/sys/dev
 256         [ -d ath ] || return
 257         for dev in $(ls -d wifi* 2>&-); do
 258                 config_get type "$dev" type
 259                 [ "$type" = atheros ] && return
 260                 cat <<EOF
 261 config wifi-device  $dev
 262         option type     atheros
 263         option channel  5
 264
 265         # REMOVE THIS LINE TO ENABLE WIFI:
 266         option disabled 1
 267
 268 config wifi-iface
 269         option device   $dev
 270         option network  lan
 271         option mode     ap
 272         option ssid     OpenWrt
 273         option encryption none
 274 EOF
 275         done
 276 }