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|monitor)
  18                                 append $mode "$vif"
  19                         ;;
  20                         wds)
  21                                 config_get ssid "$vif" ssid
  22                                 [ -z "$ssid" ] && continue
  23
  24                                 config_set "$vif" wds 1
  25                                 config_set "$vif" mode sta
  26                                 mode="sta"
  27                                 addr="$ssid"
  28                                 ${addr:+append $mode "$vif"}
  29                         ;;
  30                         *) echo "$device($vif): Invalid mode, ignored."; continue;;
  31                 esac
  32         done
  33
  34         case "${adhoc:+1}:${sta:+1}:${ap:+1}" in
  35                 # valid mode combinations
  36                 1::) wds="";;
  37                 1::1);;
  38                 :1:1)config_set "$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 "${sta:+$sta }${ap:+$ap }${adhoc:+$adhoc }${ahdemo:+$ahdemo }${wds:+$wds }${monitor:+$monitor}"
  46 }
  47
  48
  49 disable_atheros() (
  50         local device="$1"
  51
  52         set_wifi_down "$device"
  53
  54         include /lib/network
  55         cd /proc/sys/net
  56         for dev in *; do
  57                 grep "$device" "$dev/%parent" >/dev/null 2>/dev/null && {
  58                         [ -f "/var/run/wifi-${dev}.pid" ] &&
  59                                 kill "$(cat "/var/run/wifi-${dev}.pid")"
  60                         ifconfig "$dev" down
  61                         unbridge "$dev"
  62                         wlanconfig "$dev" destroy
  63                 }
  64         done
  65         return 0
  66 )
  67
  68 enable_atheros() {
  69         local device="$1"
  70         # Can only set the country code to one setting for the entire system. The last country code is the one that will be applied.
  71         config_get country "$device" country
  72         [ -z "$country" ] && country="0"
  73         local cc="0"
  74         [ -e /proc/sys/dev/$device/countrycode ] && cc="$(cat /proc/sys/dev/$device/countrycode)"
  75         if [ ! "$cc" = "$country" ] ; then
  76                 rmmod ath_pci
  77                 insmod ath_pci countrycode=$country
  78         fi
  79         config_get channel "$device" channel
  80         config_get vifs "$device" vifs
  81         config_get txpower "$device" txpower
  82
  83         [ auto = "$channel" ] && channel=0
  84
  85         local first=1
  86         for vif in $vifs; do
  87                 local start_hostapd vif_txpower
  88                 nosbeacon=
  89                 config_get ifname "$vif" ifname
  90                 config_get enc "$vif" encryption
  91                 config_get eap_type "$vif" eap_type
  92                 config_get mode "$vif" mode
  93
  94                 case "$mode" in
  95                         sta) config_get nosbeacon "$device" nosbeacon;;
  96                         adhoc) config_get nosbeacon "$vif" sw_merge;;
  97                 esac
  98
  99                 config_get ifname "$vif" ifname
 100                 ifname=$(wlanconfig "$ifname" create wlandev "$device" wlanmode "$mode" ${nosbeacon:+nosbeacon})
 101                 [ $? -ne 0 ] && {
 102                         echo "enable_atheros($device): Failed to set up $mode vif $ifname" >&2
 103                         continue
 104                 }
 105                 config_set "$vif" ifname "$ifname"
 106
 107                 # only need to change freq band and channel on the first vif
 108                 config_get hwmode "$device" hwmode
 109                 [ -z "$hwmode" ] && config_get hwmode "$device" mode
 110
 111                 pureg=0
 112                 case "$hwmode" in
 113                         *b) hwmode=11b;;
 114                         *bg) hwmode=11g;;
 115                         *g) hwmode=11g; pureg=1;;
 116                         *gdt) hwmode=11gdt;;
 117                         *a) hwmode=11a;;
 118                         *adt) hwmode=11adt;;
 119                         *ast) hwmode=11ast;;
 120                         *fh) hwmode=fh;;
 121                         *) hwmode=auto;;
 122                 esac
 123                 iwpriv "$ifname" mode "$hwmode"
 124                 iwpriv "$ifname" pureg "$pureg"
 125
 126                 [ "$first" = 1 ] && {
 127                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 128                 }
 129
 130                 config_get_bool hidden "$vif" hidden 0
 131                 iwpriv "$ifname" hide_ssid "$hidden"
 132
 133                 config_get ff "$vif" ff
 134                 if [ -n "$ff" ]; then
 135                         iwpriv "$ifname" ff "$ff"
 136                 fi
 137
 138                 config_get wds "$vif" wds
 139                 case "$wds" in
 140                         1|on|enabled) wds=1;;
 141                         *) wds=0;;
 142                 esac
 143                 iwpriv "$ifname" wds "$wds"
 144
 145                 [ "$mode" = ap -a "$wds" = 1 ] && {
 146                         config_get_bool wdssep "$vif" wdssep 1
 147                         [ -n "$wdssep" ] && iwpriv "$ifname" wdssep "$wdssep"
 148                 }
 149
 150                 case "$enc" in
 151                         WEP|wep)
 152                                 for idx in 1 2 3 4; do
 153                                         config_get key "$vif" "key${idx}"
 154                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 155                                 done
 156                                 config_get key "$vif" key
 157                                 key="${key:-1}"
 158                                 case "$key" in
 159                                         [1234]) iwconfig "$ifname" enc "[$key]";;
 160                                         *) iwconfig "$ifname" enc "$key";;
 161                                 esac
 162                         ;;
 163                         psk*|wpa*)
 164                                 start_hostapd=1
 165                                 config_get key "$vif" key
 166                         ;;
 167                 esac
 168
 169                 case "$mode" in
 170                         adhoc|ahdemo)
 171                                 config_get addr "$vif" bssid
 172                                 [ -z "$addr" ] || {
 173                                         iwconfig "$ifname" ap "$addr"
 174                                 }
 175                         ;;
 176                 esac
 177                 config_get ssid "$vif" ssid
 178
 179                 config_get_bool bgscan "$vif" bgscan
 180                 [ -n "$bgscan" ] && iwpriv "$ifname" bgscan "$bgscan"
 181
 182                 config_get_bool antdiv "$device" diversity
 183                 config_get antrx "$device" rxantenna
 184                 config_get anttx "$device" txantenna
 185                 config_get_bool softled "$device" softled 1
 186
 187                 devname="$(cat /proc/sys/dev/$device/dev_name)"
 188                 antgpio=
 189                 case "$devname" in
 190                         NanoStation2) antgpio=7;;
 191                         NanoStation5) antgpio=1;;
 192                 esac
 193                 if [ -n "$antgpio" ]; then
 194                         softled=0
 195                         config_get antenna "$device" antenna
 196                         case "$antenna" in
 197                                 external) antdiv=0; antrx=1; anttx=1 ;;
 198                                 horizontal) antdiv=0; antrx=1; anttx=1 ;;
 199                                 vertical) antdiv=0; antrx=2; anttx=2 ;;
 200                                 auto) antdiv=1; antrx=0; anttx=0 ;;
 201                         esac
 202
 203                         [ -x "$(which gpioctl 2>/dev/null)" ] || antenna=
 204                         case "$antenna" in
 205                                 horizontal|vertical|auto)
 206                                         gpioctl "dirout" "$antgpio" >/dev/null 2>&1
 207                                         gpioctl "set" "$antgpio" >/dev/null 2>&1
 208                                 ;;
 209                                 external)
 210                                         gpioctl "dirout" "$antgpio" >/dev/null 2>&1
 211                                         gpioctl "clear" "$antgpio" >/dev/null 2>&1
 212                                 ;;
 213                         esac
 214                 fi
 215
 216                 [ -n "$antdiv" ] && sysctl -w dev."$device".diversity="$antdiv" >&-
 217                 [ -n "$antrx" ] && sysctl -w dev."$device".rxantenna="$antrx" >&-
 218                 [ -n "$anttx" ] && sysctl -w dev."$device".txantenna="$anttx" >&-
 219                 [ -n "$softled" ] && sysctl -w dev."$device".softled="$softled" >&-
 220
 221                 config_get distance "$device" distance
 222                 [ -n "$distance" ] && athctrl -i "$device" -d "$distance" >&-
 223
 224                 config_get rate "$vif" rate
 225                 [ -n "$rate" ] && iwconfig "$ifname" rate "${rate%%.*}"
 226
 227                 config_get mcast_rate "$vif" mcast_rate
 228                 [ -n "$mcast_rate" ] && iwpriv "$ifname" mcast_rate "${mcast_rate%%.*}"
 229
 230                 config_get frag "$vif" frag
 231                 [ -n "$frag" ] && iwconfig "$ifname" frag "${frag%%.*}"
 232
 233                 config_get rts "$vif" rts
 234                 [ -n "$rts" ] && iwconfig "$ifname" rts "${rts%%.*}"
 235
 236                 config_get_bool comp "$vif" compression
 237                 [ -n "$comp" ] && iwpriv "$ifname" compression "$comp"
 238
 239                 config_get_bool minrate "$vif" minrate
 240                 [ -n "$minrate" ] && iwpriv "$ifname" minrate "$minrate"
 241
 242                 config_get_bool maxrate "$vif" maxrate
 243                 [ -n "$maxrate" ] && iwpriv "$ifname" maxrate "$maxrate"
 244
 245                 config_get_bool burst "$vif" bursting
 246                 [ -n "$burst" ] && iwpriv "$ifname" burst "$burst"
 247
 248                 config_get_bool wmm "$vif" wmm
 249                 [ -n "$wmm" ] && iwpriv "$ifname" wmm "$wmm"
 250
 251                 config_get_bool xr "$vif" xr
 252                 [ -n "$xr" ] && iwpriv "$ifname" xr "$xr"
 253
 254                 config_get_bool ar "$vif" ar
 255                 [ -n "$ar" ] && iwpriv "$ifname" ar "$ar"
 256
 257                 config_get_bool turbo "$vif" turbo
 258                 [ -n "$turbo" ] && iwpriv "$ifname" turbo "$turbo"
 259
 260                 config_get_bool doth "$vif" doth 0
 261                 [ -n "$doth" ] && iwpriv "$ifname" doth "$doth"
 262
 263                 config_get_bool probereq "$vif" probereq
 264                 [ -n "$probereq" ] && iwpriv "$ifname" probereq "$probereq"
 265
 266                 config_get maclist "$vif" maclist
 267                 [ -n "$maclist" ] && {
 268                         # flush MAC list
 269                         iwpriv "$ifname" maccmd 3
 270                         for mac in $maclist; do
 271                                 iwpriv "$ifname" addmac "$mac"
 272                         done
 273                 }
 274
 275                 config_get macpolicy "$vif" macpolicy
 276                 case "$macpolicy" in
 277                         allow)
 278                                 iwpriv "$ifname" maccmd 1
 279                         ;;
 280                         deny)
 281                                 iwpriv "$ifname" maccmd 2
 282                         ;;
 283                         *)
 284                                 # default deny policy if mac list exists
 285                                 [ -n "$maclist" ] && iwpriv "$ifname" maccmd 2
 286                         ;;
 287                 esac
 288
 289                 ifconfig "$ifname" up
 290
 291                 local net_cfg bridge
 292                 net_cfg="$(find_net_config "$vif")"
 293                 [ -z "$net_cfg" ] || {
 294                         bridge="$(bridge_interface "$net_cfg")"
 295                         config_set "$vif" bridge "$bridge"
 296                         start_net "$ifname" "$net_cfg"
 297                 }
 298                 [ -n "$ssid" ] && iwconfig "$ifname" essid on
 299                 iwconfig "$ifname" essid "$ssid"
 300                 set_wifi_up "$vif" "$ifname"
 301
 302                 # TXPower settings only work if device is up already
 303                 # while atheros hardware theoretically is capable of per-vif (even per-packet) txpower
 304                 # adjustment it does not work with the current atheros hal/madwifi driver
 305
 306                 config_get vif_txpower "$vif" txpower
 307                 # use vif_txpower (from wifi-iface) instead of txpower (from wifi-device) if
 308                 # the latter doesn't exist
 309                 txpower="${txpower:-$vif_txpower}"
 310                 [ -z "$txpower" ] || iwconfig "$ifname" txpower "${txpower%%.*}"
 311
 312                 case "$mode" in
 313                         ap)
 314                                 config_get_bool isolate "$vif" isolate 0
 315                                 iwpriv "$ifname" ap_bridge "$((isolate^1))"
 316
 317                                 if [ -n "$start_hostapd" ] && eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 318                                         hostapd_setup_vif "$vif" madwifi || {
 319                                                 echo "enable_atheros($device): Failed to set up hostapd for interface $ifname" >&2
 320                                                 # make sure this wifi interface won't accidentally stay open without encryption
 321                                                 ifconfig "$ifname" down
 322                                                 wlanconfig "$ifname" destroy
 323                                                 continue
 324                                         }
 325                                 fi
 326                         ;;
 327                         wds|sta)
 328                                 if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
 329                                         wpa_supplicant_setup_vif "$vif" madwifi || {
 330                                                 echo "enable_atheros($device): Failed to set up wpa_supplicant for interface $ifname" >&2
 331                                                 ifconfig "$ifname" down
 332                                                 wlanconfig "$ifname" destroy
 333                                                 continue
 334                                         }
 335                                 fi
 336                         ;;
 337                 esac
 338                 first=0
 339         done
 340 }
 341
 342
 343 detect_atheros() {
 344         cd /proc/sys/dev
 345         [ -d ath ] || return
 346         for dev in $(ls -d wifi* 2>&-); do
 347                 config_get type "$dev" type
 348                 devname="$(cat /proc/sys/dev/$dev/dev_name)"
 349                 case "$devname" in
 350                         NanoStation*)
 351                                 EXTRA_DEV="
 352 # Ubiquiti NanoStation features
 353         option antenna  auto # (auto|horizontal|vertical|external)
 354 "
 355                         ;;
 356                 esac
 357                 [ "$type" = atheros ] && return
 358                 cat <<EOF
 359 config wifi-device  $dev
 360         option type     atheros
 361         option channel  auto
 362 $EXTRA_DEV
 363         # REMOVE THIS LINE TO ENABLE WIFI:
 364         option disabled 1
 365
 366 config wifi-iface
 367         option device   $dev
 368         option network  lan
 369         option mode     ap
 370         option ssid     OpenWrt
 371         option encryption none
 372 EOF
 373         done
 374 }