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 "${ap:+$ap }${adhoc:+$adhoc }${ahdemo:+$ahdemo }${sta:+$sta }${wds:+$wds }${monitor:+$monitor}"
  46 }
  47
  48
  49 disable_atheros() (
  50         local device="$1"
  51
  52         set_wifi_down "$device"
  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         local device="$1"
  74         config_get channel "$device" channel
  75         config_get vifs "$device" vifs
  76
  77         [ auto = "$channel" ] && channel=0
  78
  79         local first=1
  80         for vif in $vifs; do
  81                 local start_hostapd
  82                 nosbeacon=
  83                 config_get ifname "$vif" ifname
  84                 config_get enc "$vif" encryption
  85                 config_get eap_type "$vif" eap_type
  86                 config_get mode "$vif" mode
  87
  88                 [ "$mode" = sta ] && config_get nosbeacon "$device" nosbeacon
  89
  90                 config_get ifname "$vif" ifname
  91                 ifname=$(wlanconfig "$ifname" create wlandev "$device" wlanmode "$mode" ${nosbeacon:+nosbeacon})
  92                 [ $? -ne 0 ] && {
  93                         echo "enable_atheros($device): Failed to set up $mode vif $ifname" >&2
  94                         continue
  95                 }
  96                 config_set "$vif" ifname "$ifname"
  97
  98                 # only need to change freq band and channel on the first vif
  99                 config_get agmode "$device" agmode
 100                 [ -z "$agmode" ] && config_get agmode "$device" mode
 101
 102                 pureg=0
 103                 case "$agmode" in
 104                         *b) agmode=11b;;
 105                         *bg) agmode=11g;;
 106                         *g) agmode=11g; pureg=1;;
 107                         *gdt) agmode=11gdt;;
 108                         *a) agmode=11a;;
 109                         *adt) agmode=11adt;;
 110                         *ast) agmode=11ast;;
 111                         *fh) agmode=fh;;
 112                         *) agmode=auto;;
 113                 esac
 114                 iwpriv "$ifname" mode "$agmode"
 115                 iwpriv "$ifname" pureg "$pureg"
 116
 117                 [ "$first" = 1 ] && {
 118                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 119                 }
 120
 121                 config_get_bool hidden "$vif" hidden 0
 122                 iwpriv "$ifname" hide_ssid "$hidden"
 123
 124                 config_get ff "$vif" ff
 125                 if [ -n "$ff" ]; then
 126                         iwpriv "$ifname" ff "$ff"
 127                 fi
 128
 129                 config_get wds "$vif" wds
 130                 case "$wds" in
 131                         1|on|enabled) wds=1;;
 132                         *) wds=0;;
 133                 esac
 134                 iwpriv "$ifname" wds "$wds"
 135
 136                 [ "$mode" = ap -a "$wds" = 1 ] && {
 137                         config_get_bool wdssep "$vif" wdssep 1
 138                         [ -n "$wdssep" ] && iwpriv "$ifname" wdssep "$wdssep"
 139                 }
 140
 141                 case "$enc" in
 142                         WEP|wep)
 143                                 for idx in 1 2 3 4; do
 144                                         config_get key "$vif" "key${idx}"
 145                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 146                                 done
 147                                 config_get key "$vif" key
 148                                 key="${key:-1}"
 149                                 case "$key" in
 150                                         [1234]) iwconfig "$ifname" enc "[$key]";;
 151                                         *) iwconfig "$ifname" enc "$key";;
 152                                 esac
 153                         ;;
 154                         psk*|wpa*)
 155                                 start_hostapd=1
 156                                 config_get key "$vif" key
 157                         ;;
 158                 esac
 159
 160                 case "$mode" in
 161                         adhoc|ahdemo)
 162                                 config_get addr "$vif" bssid
 163                                 [ -z "$addr" ] || {
 164                                         iwconfig "$ifname" ap "$addr"
 165                                 }
 166                         ;;
 167                 esac
 168                 config_get ssid "$vif" ssid
 169
 170                 config_get_bool bgscan "$vif" bgscan
 171                 [ -n "$bgscan" ] && iwpriv "$ifname" bgscan "$bgscan"
 172
 173                 config_get_bool antdiv "$device" diversity
 174                 [ -n "$antdiv" ] && sysctl -w dev."$device".diversity="$antdiv" >&-
 175
 176                 config_get antrx "$device" rxantenna
 177                 [ -n "$antrx" ] && sysctl -w dev."$device".rxantenna="$antrx" >&-
 178
 179                 config_get anttx "$device" txantenna
 180                 [ -n "$anttx" ] && sysctl -w dev."$device".txantenna="$anttx" >&-
 181
 182                 config_get distance "$device" distance
 183                 [ -n "$distance" ] && athctrl -i "$device" -d "$distance" >&-
 184
 185                 config_get txpwr "$vif" txpower
 186                 [ -n "$txpwr" ] && iwconfig "$ifname" txpower "${txpwr%%.*}"
 187
 188                 config_get rate "$vif" rate
 189                 [ -n "$rate" ] && iwconfig "$ifname" rate "${rate%%.*}"
 190
 191                 config_get mcast_rate "$vif" mcast_rate
 192                 [ -n "$mcast_rate" ] && iwpriv "$ifname" mcast_rate "${mcast_rate%%.*}"
 193
 194                 config_get frag "$vif" frag
 195                 [ -n "$frag" ] && iwconfig "$ifname" frag "${frag%%.*}"
 196
 197                 config_get rts "$vif" rts
 198                 [ -n "$rts" ] && iwconfig "$ifname" rts "${rts%%.*}"
 199
 200                 config_get_bool comp "$vif" compression
 201                 [ -n "$comp" ] && iwpriv "$ifname" compression "$comp"
 202
 203                 config_get_bool minrate "$vif" minrate
 204                 [ -n "$minrate" ] && iwpriv "$ifname" minrate "$minrate"
 205
 206                 config_get_bool maxrate "$vif" maxrate
 207                 [ -n "$maxrate" ] && iwpriv "$ifname" maxrate "$maxrate"
 208
 209                 config_get_bool burst "$vif" bursting
 210                 [ -n "$burst" ] && iwpriv "$ifname" burst "$burst"
 211
 212                 config_get_bool wmm "$vif" wmm
 213                 [ -n "$wmm" ] && iwpriv "$ifname" wmm "$wmm"
 214
 215                 config_get_bool xr "$vif" xr
 216                 [ -n "$xr" ] && iwpriv "$ifname" xr "$xr"
 217
 218                 config_get_bool ar "$vif" ar
 219                 [ -n "$ar" ] && iwpriv "$ifname" ar "$ar"
 220
 221                 config_get_bool turbo "$vif" turbo
 222                 [ -n "$turbo" ] && iwpriv "$ifname" turbo "$turbo"
 223
 224                 config_get_bool doth "$vif" doth 0
 225                 [ -n "$doth" ] && iwpriv "$ifname" doth "$doth"
 226
 227                 config_get maclist "$vif" maclist
 228                 [ -n "$maclist" ] && {
 229                         # flush MAC list
 230                         iwpriv "$ifname" maccmd 3
 231                         for mac in $maclist; do
 232                                 iwpriv "$ifname" addmac "$mac"
 233                         done
 234                 }
 235
 236                 config_get macpolicy "$vif" macpolicy
 237                 case "$macpolicy" in
 238                         allow)
 239                                 iwpriv "$ifname" maccmd 1
 240                         ;;
 241                         deny)
 242                                 iwpriv "$ifname" maccmd 2
 243                         ;;
 244                         *)
 245                                 # default deny policy if mac list exists
 246                                 [ -n "$maclist" ] && iwpriv "$ifname" maccmd 2
 247                         ;;
 248                 esac
 249
 250                 ifconfig "$ifname" up
 251                 local net_cfg bridge
 252                 net_cfg="$(find_net_config "$vif")"
 253                 [ -z "$net_cfg" ] || {
 254                         bridge="$(bridge_interface "$net_cfg")"
 255                         config_set "$vif" bridge "$bridge"
 256                         start_net "$ifname" "$net_cfg"
 257                 }
 258                 iwconfig "$ifname" essid "$ssid"
 259                 set_wifi_up "$vif" "$ifname"
 260                 case "$mode" in
 261                         ap)
 262                                 config_get_bool isolate "$vif" isolate 0
 263                                 iwpriv "$ifname" ap_bridge "$((isolate^1))"
 264
 265                                 if [ -n "$start_hostapd" ] && eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 266                                         hostapd_setup_vif "$vif" madwifi || {
 267                                                 echo "enable_atheros($device): Failed to set up hostapd for interface $ifname" >&2
 268                                                 # make sure this wifi interface won't accidentally stay open without encryption
 269                                                 ifconfig "$ifname" down
 270                                                 wlanconfig "$ifname" destroy
 271                                                 continue
 272                                         }
 273                                 fi
 274                         ;;
 275                         wds|sta)
 276                                 if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
 277                                         wpa_supplicant_setup_vif "$vif" madwifi || {
 278                                                 echo "enable_atheros($device): Failed to set up wpa_supplicant for interface $ifname" >&2
 279                                                 ifconfig "$ifname" down
 280                                                 wlanconfig "$ifname" destroy
 281                                                 continue
 282                                         }
 283                                 fi
 284                         ;;
 285                 esac
 286                 first=0
 287         done
 288 }
 289
 290
 291 detect_atheros() {
 292         cd /proc/sys/dev
 293         [ -d ath ] || return
 294         for dev in $(ls -d wifi* 2>&-); do
 295                 config_get type "$dev" type
 296                 [ "$type" = atheros ] && return
 297                 cat <<EOF
 298 config wifi-device  $dev
 299         option type     atheros
 300         option channel  auto
 301
 302         # REMOVE THIS LINE TO ENABLE WIFI:
 303         option disabled 1
 304
 305 config wifi-iface
 306         option device   $dev
 307         option network  lan
 308         option mode     ap
 309         option ssid     OpenWrt
 310         option encryption none
 311 EOF
 312         done
 313 }