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         disable_atheros "$device"
  77         local first=1
  78         for vif in $vifs; do
  79                 nosbeacon=
  80                 config_get ifname "$vif" ifname
  81                 config_get enc "$vif" encryption
  82                 config_get mode "$vif" mode
  83
  84                 [ "$mode" = sta ] && config_get nosbeacon "$device" nosbeacon
  85
  86                 config_get ifname "$vif" ifname
  87                 ifname=$(wlanconfig "$ifname" create wlandev "$device" wlanmode "$mode" ${nosbeacon:+nosbeacon})
  88                 [ $? -ne 0 ] && {
  89                         echo "enable_atheros($device): Failed to set up $mode vif $ifname" >&2
  90                         continue
  91                 }
  92                 config_set "$vif" ifname "$ifname"
  93
  94                 [ "$first" = 1 ] && {
  95                         # only need to change freq band and channel on the first vif
  96                         config_get agmode "$device" mode
  97                         pureg=0
  98                         case "$agmode" in
  99                                 *b) agmode=11b;;
 100                                 *bg) agmode=11g;;
 101                                 *g) agmode=11g; pureg=1;;
 102                                 *a) agmode=11a;;
 103                                 *) agmode=auto;;
 104                         esac
 105                         iwconfig "$ifname" channel 0 >/dev/null 2>/dev/null
 106                         ifconfig "$ifname" up
 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 "$vif" hidden
 113                 iwpriv "$ifname" hide_ssid "$hidden"
 114
 115                 config_get wds "$vif" wds
 116                 case "$wds" in
 117                         1|on|enabled) wds=1;;
 118                         *) wds=0;;
 119                 esac
 120                 iwpriv "$ifname" wds "$wds"
 121
 122                 wpa=
 123                 case "$enc" in
 124                         WEP|wep)
 125                                 for idx in 1 2 3 4; do
 126                                         config_get key "$vif" "key${idx}"
 127                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 128                                 done
 129                                 config_get key "$vif" key
 130                                 key="${key:-1}"
 131                                 case "$key" in
 132                                         [1234]) iwconfig "$ifname" enc "[$key]";;
 133                                         *) iwconfig "$ifname" enc "$key";;
 134                                 esac
 135                         ;;
 136                         PSK|psk|PSK2|psk2)
 137                                 config_get key "$vif" key
 138                         ;;
 139                 esac
 140
 141                 case "$mode" in
 142                         wds)
 143                                 config_get addr "$vif" bssid
 144                                 iwpriv "$ifname" wds_add "$addr"
 145                         ;;
 146                         adhoc|ahdemo)
 147                                 config_get addr "$vif" bssid
 148                                 [ -z "$addr" ] || {
 149                                         iwconfig "$ifname" ap "$addr"
 150                                 }
 151                         ;;
 152                 esac
 153                 config_get ssid "$vif" ssid
 154
 155                 [ "$mode" = "sta" ] && {
 156                         config_get_bool bgscan "$vif" bgscan 1
 157                         iwpriv "$ifname" bgscan "$bgscan"
 158                 }
 159
 160                 config_get_bool antdiv "$device" diversity 1
 161                 sysctl -w dev."$device".diversity="$antdiv" >&-
 162
 163                 config_get antrx "$device" rxantenna
 164                 if [ -n "$antrx" ]; then
 165                         sysctl -w dev."$device".rxantenna="$antrx" >&-
 166                 fi
 167
 168                 config_get anttx "$device" txantenna
 169                 if [ -n "$anttx" ]; then
 170                         sysctl -w dev."$device".txantenna="$anttx" >&-
 171                 fi
 172
 173                 config_get distance "$device" distance
 174                 if [ -n "$distance" ]; then
 175                         athctrl -i "$device" -d "$distance" >&-
 176                 fi
 177
 178                 config_get txpwr "$vif" txpower
 179                 if [ -n "$txpwr" ]; then
 180                         iwconfig "$ifname" txpower "${txpwr%%.*}"
 181                 fi
 182
 183                 ifconfig "$ifname" up
 184                 iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 185
 186                 local net_cfg bridge
 187                 net_cfg="$(find_net_config "$vif")"
 188                 [ -z "$net_cfg" ] || {
 189                         bridge="$(bridge_interface "$net_cfg")"
 190                         config_set "$vif" bridge "$bridge"
 191                         start_net "$ifname" "$net_cfg"
 192                 }
 193                 iwconfig "$ifname" essid "$ssid"
 194                 case "$mode" in
 195                         ap)
 196                                 config_get_bool isolate "$vif" isolate 0
 197                                 iwpriv "$ifname" ap_bridge "$((isolate^1))"
 198
 199                                 if eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 200                                         hostapd_setup_vif "$vif" madwifi || {
 201                                                 echo "enable_atheros($device): Failed to set up wpa for interface $ifname" >&2
 202                                                 # make sure this wifi interface won't accidentally stay open without encryption
 203                                                 ifconfig "$ifname" down
 204                                                 wlanconfig "$ifname" destroy
 205                                                 continue
 206                                         }
 207                                 fi
 208                         ;;
 209                         wds|sta)
 210                                 case "$enc" in
 211                                         PSK|psk|PSK2|psk2)
 212                                                 case "$enc" in
 213                                                         PSK|psk)
 214                                                                 proto='proto=WPA';;
 215                                                         PSK2|psk2)
 216                                                                 proto='proto=RSN';;
 217                                                 esac
 218                                                 cat > /var/run/wpa_supplicant-$ifname.conf <<EOF
 219 ctrl_interface=/var/run/wpa_supplicant
 220 network={
 221         scan_ssid=1
 222         ssid="$ssid"
 223         key_mgmt=WPA-PSK
 224         $proto
 225         psk="$key"
 226 }
 227 EOF
 228                                         ;;
 229                                         WPA|wpa|WPA2|wpa2)
 230                                                 #add wpa_supplicant calls here
 231                                         ;;
 232                                 esac
 233                                 [ -z "$proto" ] || wpa_supplicant ${bridge:+ -b $bridge} -Bw -D wext -i "$ifname" -c /var/run/wpa_supplicant-$ifname.conf
 234                         ;;
 235                 esac
 236                 first=0
 237         done
 238 }
 239
 240
 241 detect_atheros() {
 242         cd /proc/sys/dev
 243         [ -d ath ] || return
 244         for dev in $(ls -d wifi* 2>&-); do
 245                 config_get type "$dev" type
 246                 [ "$type" = atheros ] && return
 247                 cat <<EOF
 248 config wifi-device  $dev
 249         option type     atheros
 250         option channel  5
 251 #       option diversity 1
 252 #       option txantenna 0
 253 #       option rxantenna 0
 254 #       option distance  2000
 255 # disable radio to prevent an open ap after reflashing:
 256         option disabled 1
 257
 258
 259 config wifi-iface
 260         option device   $dev
 261         option network  lan
 262         option mode     ap
 263         option ssid     OpenWrt
 264         option hidden   0
 265 #       option txpower  15
 266 #       option bgscan   enable
 267         option encryption none
 268
 269 EOF
 270         done
 271 }