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                         ;;
 157                 esac
 158
 159                 case "$mode" in
 160                         adhoc|ahdemo)
 161                                 config_get addr "$vif" bssid
 162                                 [ -z "$addr" ] || {
 163                                         iwconfig "$ifname" ap "$addr"
 164                                 }
 165                         ;;
 166                 esac
 167                 config_get ssid "$vif" ssid
 168
 169                 config_get_bool bgscan "$vif" bgscan
 170                 [ -n "$bgscan" ] && iwpriv "$ifname" bgscan "$bgscan"
 171
 172                 config_get_bool antdiv "$device" diversity
 173                 [ -n "$antdiv" ] && sysctl -w dev."$device".diversity="$antdiv" >&-
 174
 175                 config_get antrx "$device" rxantenna
 176                 [ -n "$antrx" ] && sysctl -w dev."$device".rxantenna="$antrx" >&-
 177
 178                 config_get anttx "$device" txantenna
 179                 [ -n "$anttx" ] && sysctl -w dev."$device".txantenna="$anttx" >&-
 180
 181                 config_get distance "$device" distance
 182                 [ -n "$distance" ] && athctrl -i "$device" -d "$distance" >&-
 183
 184                 config_get txpwr "$vif" txpower
 185                 [ -n "$txpwr" ] && iwconfig "$ifname" txpower "${txpwr%%.*}"
 186
 187                 config_get rate "$vif" rate
 188                 [ -n "$rate" ] && iwconfig "$ifname" rate "${rate%%.*}"
 189
 190                 config_get mcast_rate "$vif" mcast_rate
 191                 [ -n "$mcast_rate" ] && iwpriv "$ifname" mcast_rate "${mcast_rate%%.*}"
 192
 193                 config_get frag "$vif" frag
 194                 [ -n "$frag" ] && iwconfig "$ifname" frag "${frag%%.*}"
 195
 196                 config_get rts "$vif" rts
 197                 [ -n "$rts" ] && iwconfig "$ifname" rts "${rts%%.*}"
 198
 199                 config_get_bool comp "$vif" compression
 200                 [ -n "$comp" ] && iwpriv "$ifname" compression "$comp"
 201
 202                 config_get_bool minrate "$vif" minrate
 203                 [ -n "$minrate" ] && iwpriv "$ifname" minrate "$minrate"
 204
 205                 config_get_bool maxrate "$vif" maxrate
 206                 [ -n "$maxrate" ] && iwpriv "$ifname" maxrate "$maxrate"
 207
 208                 config_get_bool burst "$vif" bursting
 209                 [ -n "$burst" ] && iwpriv "$ifname" burst "$burst"
 210
 211                 config_get_bool wmm "$vif" wmm
 212                 [ -n "$wmm" ] && iwpriv "$ifname" wmm "$wmm"
 213
 214                 config_get_bool xr "$vif" xr
 215                 [ -n "$xr" ] && iwpriv "$ifname" xr "$xr"
 216
 217                 config_get_bool ar "$vif" ar
 218                 [ -n "$ar" ] && iwpriv "$ifname" ar "$ar"
 219
 220                 config_get_bool turbo "$vif" turbo
 221                 [ -n "$turbo" ] && iwpriv "$ifname" turbo "$turbo"
 222
 223                 config_get_bool doth "$vif" doth 0
 224                 [ -n "$doth" ] && iwpriv "$ifname" doth "$doth"
 225
 226                 config_get maclist "$vif" maclist
 227                 [ -n "$maclist" ] && {
 228                         # flush MAC list
 229                         iwpriv "$ifname" maccmd 3
 230                         for mac in $maclist; do
 231                                 iwpriv "$ifname" addmac "$mac"
 232                         done
 233                 }
 234
 235                 config_get macpolicy "$vif" macpolicy
 236                 case "$macpolicy" in
 237                         allow)
 238                                 iwpriv "$ifname" maccmd 1
 239                         ;;
 240                         deny)
 241                                 iwpriv "$ifname" maccmd 2
 242                         ;;
 243                         *)
 244                                 # default deny policy if mac list exists
 245                                 [ -n "$maclist" ] && iwpriv "$ifname" maccmd 2
 246                         ;;
 247                 esac
 248
 249                 ifconfig "$ifname" up
 250                 local net_cfg bridge
 251                 net_cfg="$(find_net_config "$vif")"
 252                 [ -z "$net_cfg" ] || {
 253                         bridge="$(bridge_interface "$net_cfg")"
 254                         config_set "$vif" bridge "$bridge"
 255                         start_net "$ifname" "$net_cfg"
 256                 }
 257                 iwconfig "$ifname" essid "$ssid"
 258                 set_wifi_up "$vif" "$ifname"
 259                 case "$mode" in
 260                         ap)
 261                                 config_get_bool isolate "$vif" isolate 0
 262                                 iwpriv "$ifname" ap_bridge "$((isolate^1))"
 263
 264                                 if [ -n "$start_hostapd" ] && eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 265                                         hostapd_setup_vif "$vif" madwifi || {
 266                                                 echo "enable_atheros($device): Failed to set up hostapd for interface $ifname" >&2
 267                                                 # make sure this wifi interface won't accidentally stay open without encryption
 268                                                 ifconfig "$ifname" down
 269                                                 wlanconfig "$ifname" destroy
 270                                                 continue
 271                                         }
 272                                 fi
 273                         ;;
 274                         wds|sta)
 275                                 if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
 276                                         wpa_supplicant_setup_vif "$vif" madwifi || {
 277                                                 echo "enable_atheros($device): Failed to set up wpa_supplicant for interface $ifname" >&2
 278                                                 ifconfig "$ifname" down
 279                                                 wlanconfig "$ifname" destroy
 280                                                 continue
 281                                         }
 282                                 fi
 283                         ;;
 284                 esac
 285                 first=0
 286         done
 287 }
 288
 289
 290 detect_atheros() {
 291         cd /proc/sys/dev
 292         [ -d ath ] || return
 293         for dev in $(ls -d wifi* 2>&-); do
 294                 config_get type "$dev" type
 295                 [ "$type" = atheros ] && return
 296                 cat <<EOF
 297 config wifi-device  $dev
 298         option type     atheros
 299         option channel  auto
 300
 301         # REMOVE THIS LINE TO ENABLE WIFI:
 302         option disabled 1
 303
 304 config wifi-iface
 305         option device   $dev
 306         option network  lan
 307         option mode     ap
 308         option ssid     OpenWrt
 309         option encryption none
 310 EOF
 311         done
 312 }