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                         sleep 1
 108                         iwpriv "$ifname" mode "$agmode"
 109                         iwpriv "$ifname" pureg "$pureg"
 110                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 111                 }
 112
 113                 config_get_bool hidden "$vif" hidden 0
 114                 iwpriv "$ifname" hide_ssid "$hidden"
 115
 116                 config_get_bool ff "$vif" ff 0
 117                 iwpriv "$ifname" ff "$ff"
 118
 119                 config_get wds "$vif" wds
 120                 case "$wds" in
 121                         1|on|enabled) wds=1;;
 122                         *) wds=0;;
 123                 esac
 124                 iwpriv "$ifname" wds "$wds"
 125
 126                 wpa=
 127                 case "$enc" in
 128                         WEP|wep)
 129                                 for idx in 1 2 3 4; do
 130                                         config_get key "$vif" "key${idx}"
 131                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 132                                 done
 133                                 config_get key "$vif" key
 134                                 key="${key:-1}"
 135                                 case "$key" in
 136                                         [1234]) iwconfig "$ifname" enc "[$key]";;
 137                                         *) iwconfig "$ifname" enc "$key";;
 138                                 esac
 139                         ;;
 140                         PSK|psk|PSK2|psk2)
 141                                 config_get key "$vif" key
 142                         ;;
 143                 esac
 144
 145                 case "$mode" in
 146                         wds)
 147                                 config_get addr "$vif" bssid
 148                                 iwpriv "$ifname" wds_add "$addr"
 149                         ;;
 150                         adhoc|ahdemo)
 151                                 config_get addr "$vif" bssid
 152                                 [ -z "$addr" ] || {
 153                                         iwconfig "$ifname" ap "$addr"
 154                                 }
 155                         ;;
 156                 esac
 157                 config_get ssid "$vif" ssid
 158
 159                 [ "$mode" = "sta" ] && {
 160                         config_get_bool bgscan "$vif" bgscan 1
 161                         iwpriv "$ifname" bgscan "$bgscan"
 162                 }
 163
 164                 config_get_bool antdiv "$device" diversity 1
 165                 sysctl -w dev."$device".diversity="$antdiv" >&-
 166
 167                 config_get antrx "$device" rxantenna
 168                 if [ -n "$antrx" ]; then
 169                         sysctl -w dev."$device".rxantenna="$antrx" >&-
 170                 fi
 171
 172                 config_get anttx "$device" txantenna
 173                 if [ -n "$anttx" ]; then
 174                         sysctl -w dev."$device".txantenna="$anttx" >&-
 175                 fi
 176
 177                 config_get distance "$device" distance
 178                 if [ -n "$distance" ]; then
 179                         athctrl -i "$device" -d "$distance" >&-
 180                 fi
 181
 182                 config_get txpwr "$vif" txpower
 183                 if [ -n "$txpwr" ]; then
 184                         iwconfig "$ifname" txpower "${txpwr%%.*}"
 185                 fi
 186
 187                 config_get frag "$vif" frag
 188                 if [ -n "$frag" ]; then
 189                         iwconfig "$ifname" frag "${frag%%.*}"
 190                 fi
 191
 192                 config_get rts "$vif" rts
 193                 if [ -n "$rts" ]; then
 194                         iwconfig "$ifname" rts "${rts%%.*}"
 195                 fi
 196
 197                 ifconfig "$ifname" up
 198                 iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 199
 200                 local net_cfg bridge
 201                 net_cfg="$(find_net_config "$vif")"
 202                 [ -z "$net_cfg" ] || {
 203                         bridge="$(bridge_interface "$net_cfg")"
 204                         config_set "$vif" bridge "$bridge"
 205                         start_net "$ifname" "$net_cfg"
 206                 }
 207                 iwconfig "$ifname" essid "$ssid"
 208                 case "$mode" in
 209                         ap)
 210                                 config_get_bool isolate "$vif" isolate 0
 211                                 iwpriv "$ifname" ap_bridge "$((isolate^1))"
 212
 213                                 if eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 214                                         hostapd_setup_vif "$vif" madwifi || {
 215                                                 echo "enable_atheros($device): Failed to set up wpa for interface $ifname" >&2
 216                                                 # make sure this wifi interface won't accidentally stay open without encryption
 217                                                 ifconfig "$ifname" down
 218                                                 wlanconfig "$ifname" destroy
 219                                                 continue
 220                                         }
 221                                 fi
 222                         ;;
 223                         wds|sta)
 224                                 case "$enc" in
 225                                         PSK|psk|PSK2|psk2)
 226                                                 case "$enc" in
 227                                                         PSK|psk)
 228                                                                 proto='proto=WPA';;
 229                                                         PSK2|psk2)
 230                                                                 proto='proto=RSN';;
 231                                                 esac
 232                                                 cat > /var/run/wpa_supplicant-$ifname.conf <<EOF
 233 ctrl_interface=/var/run/wpa_supplicant
 234 network={
 235         scan_ssid=1
 236         ssid="$ssid"
 237         key_mgmt=WPA-PSK
 238         $proto
 239         psk="$key"
 240 }
 241 EOF
 242                                         ;;
 243                                         WPA|wpa|WPA2|wpa2)
 244                                                 #add wpa_supplicant calls here
 245                                         ;;
 246                                 esac
 247                                 [ -z "$proto" ] || wpa_supplicant ${bridge:+ -b $bridge} -Bw -D wext -i "$ifname" -c /var/run/wpa_supplicant-$ifname.conf
 248                         ;;
 249                 esac
 250                 first=0
 251         done
 252 }
 253
 254
 255 detect_atheros() {
 256         cd /proc/sys/dev
 257         [ -d ath ] || return
 258         for dev in $(ls -d wifi* 2>&-); do
 259                 config_get type "$dev" type
 260                 [ "$type" = atheros ] && return
 261                 cat <<EOF
 262 config wifi-device  $dev
 263         option type     atheros
 264         option channel  5
 265 #       option diversity 1
 266 #       option txantenna 0
 267 #       option rxantenna 0
 268 #       option distance  2000
 269 # disable radio to prevent an open ap after reflashing:
 270         option disabled 1
 271
 272
 273 config wifi-iface
 274         option device   $dev
 275         option network  lan
 276         option mode     ap
 277         option ssid     OpenWrt
 278         option hidden   0
 279 #       option txpower  15
 280 #       option bgscan   enable
 281 #       option frag     off
 282 #       option rts      off
 283         option encryption none
 284
 285 EOF
 286         done
 287 }