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="$1"
  52
  53         set_wifi_down "$device"
  54         # kill all running hostapd and wpa_supplicant processes that
  55         # are running on atheros vifs
  56         for pid in `pidof hostapd wpa_supplicant`; do
  57                 grep ath /proc/$pid/cmdline >/dev/null && \
  58                         kill $pid
  59         done
  60
  61         include /lib/network
  62         cd /proc/sys/net
  63         for dev in *; do
  64                 grep "$device" "$dev/%parent" >/dev/null 2>/dev/null && {
  65                         ifconfig "$dev" down
  66                         unbridge "$dev"
  67                         wlanconfig "$dev" destroy
  68                 }
  69         done
  70         return 0
  71 )
  72
  73 enable_atheros() {
  74         local device="$1"
  75         config_get channel "$device" channel
  76         config_get vifs "$device" vifs
  77
  78         [ auto = "$channel" ] && channel=0
  79
  80         local first=1
  81         for vif in $vifs; do
  82                 nosbeacon=
  83                 config_get ifname "$vif" ifname
  84                 config_get enc "$vif" encryption
  85                 config_get mode "$vif" mode
  86
  87                 [ "$mode" = sta ] && config_get nosbeacon "$device" nosbeacon
  88
  89                 config_get ifname "$vif" ifname
  90                 ifname=$(wlanconfig "$ifname" create wlandev "$device" wlanmode "$mode" ${nosbeacon:+nosbeacon})
  91                 [ $? -ne 0 ] && {
  92                         echo "enable_atheros($device): Failed to set up $mode vif $ifname" >&2
  93                         continue
  94                 }
  95                 config_set "$vif" ifname "$ifname"
  96
  97                 [ "$first" = 1 ] && {
  98                         # only need to change freq band and channel on the first vif
  99                         config_get agmode "$device" agmode
 100                         pureg=0
 101                         case "$agmode" in
 102                                 *b) agmode=11b;;
 103                                 *bg) agmode=11g;;
 104                                 *g) agmode=11g; pureg=1;;
 105                                 *a) agmode=11a;;
 106                                 *) agmode=auto;;
 107                         esac
 108                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 109                         ifconfig "$ifname" up
 110                         sleep 1
 111                         iwpriv "$ifname" mode "$agmode"
 112                         iwpriv "$ifname" pureg "$pureg"
 113                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 114                 }
 115
 116                 config_get_bool hidden "$vif" hidden 0
 117                 iwpriv "$ifname" hide_ssid "$hidden"
 118
 119                 config_get ff "$vif" ff
 120                 if [ -n "$ff" ]; then
 121                         iwpriv "$ifname" ff "$ff"
 122                 fi
 123
 124                 config_get wds "$vif" wds
 125                 case "$wds" in
 126                         1|on|enabled) wds=1;;
 127                         *) wds=0;;
 128                 esac
 129                 iwpriv "$ifname" wds "$wds"
 130
 131                 wpa=
 132                 case "$enc" in
 133                         WEP|wep)
 134                                 for idx in 1 2 3 4; do
 135                                         config_get key "$vif" "key${idx}"
 136                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 137                                 done
 138                                 config_get key "$vif" key
 139                                 key="${key:-1}"
 140                                 case "$key" in
 141                                         [1234]) iwconfig "$ifname" enc "[$key]";;
 142                                         *) iwconfig "$ifname" enc "$key";;
 143                                 esac
 144                         ;;
 145                         PSK|psk|PSK2|psk2)
 146                                 config_get key "$vif" key
 147                         ;;
 148                 esac
 149
 150                 case "$mode" in
 151                         wds)
 152                                 config_get addr "$vif" bssid
 153                                 iwpriv "$ifname" wds_add "$addr"
 154                         ;;
 155                         adhoc|ahdemo)
 156                                 config_get addr "$vif" bssid
 157                                 [ -z "$addr" ] || {
 158                                         iwconfig "$ifname" ap "$addr"
 159                                 }
 160                         ;;
 161                 esac
 162                 config_get ssid "$vif" ssid
 163
 164                 config_get_bool bgscan "$vif" bgscan
 165                 [ -n "$bgscan" ] && iwpriv "$ifname" bgscan "$bgscan"
 166
 167                 config_get_bool antdiv "$device" diversity
 168                 [ -n "$antdiv" ] && sysctl -w dev."$device".diversity="$antdiv" >&-
 169
 170                 config_get antrx "$device" rxantenna
 171                 [ -n "$antrx" ] && sysctl -w dev."$device".rxantenna="$antrx" >&-
 172
 173                 config_get anttx "$device" txantenna
 174                 [ -n "$anttx" ] && sysctl -w dev."$device".txantenna="$anttx" >&-
 175
 176                 config_get distance "$device" distance
 177                 [ -n "$distance" ] && athctrl -i "$device" -d "$distance" >&-
 178
 179                 config_get txpwr "$vif" txpower
 180                 [ -n "$txpwr" ] && iwconfig "$ifname" txpower "${txpwr%%.*}"
 181
 182                 config_get rate "$vif" rate
 183                 [ -n "$rate" ] && iwconfig "$ifname" rate "${rate%%.*}"
 184
 185                 config_get mcast_rate "$vif" mcast_rate
 186                 [ -n "$mcast_rate" ] && iwpriv "$ifname" mcast_rate "${mcast_rate%%.*}"
 187
 188                 config_get frag "$vif" frag
 189                 [ -n "$frag" ] && iwconfig "$ifname" frag "${frag%%.*}"
 190
 191                 config_get rts "$vif" rts
 192                 [ -n "$rts" ] && iwconfig "$ifname" rts "${rts%%.*}"
 193
 194                 config_get_bool doth "$vif" 80211h
 195                 [ -n "$doth" ] && iwpriv "$ifname" doth "$doth"
 196
 197                 config_get_bool comp "$vif" compression
 198                 [ -n "$comp" ] && iwpriv "$ifname" compression "$comp"
 199
 200                 config_get_bool burst "$vif" bursting
 201                 [ -n "$burst" ] && iwpriv "$ifname" burst "$burst"
 202
 203                 config_get_bool wmm "$vif" wmm
 204                 [ -n "$wmm" ] && iwpriv "$ifname" wmm "$wmm"
 205
 206                 config_get_bool xr "$vif" xr
 207                 [ -n "$xr" ] && iwpriv "$ifname" xr "$xr"
 208
 209                 config_get_bool ar "$vif" ar
 210                 [ -n "$ar" ] && iwpriv "$ifname" ar "$ar"
 211
 212                 config_get_bool turbo "$vif" turbo
 213                 [ -n "$turbo" ] && iwpriv "$ifname" turbo "$turbo"
 214
 215                 config_get maclist "$vif" maclist
 216                 [ -n "$maclist" ] && {
 217                         # flush MAC list
 218                         iwpriv "$ifname" maccmd 3
 219                         for mac in $maclist; do
 220                                 iwpriv "$ifname" addmac "$mac"
 221                         done
 222                 }
 223
 224                 config_get macpolicy "$vif" macpolicy
 225                 case "$macpolicy" in
 226                         allow)
 227                                 iwpriv "$ifname" maccmd 1
 228                         ;;
 229                         deny)
 230                                 iwpriv "$ifname" maccmd 2
 231                         ;;
 232                         *)
 233                                 # default deny policy if mac list exists
 234                                 [ -n "$maclist" ] && iwpriv "$ifname" maccmd 2
 235                         ;;
 236                 esac
 237
 238                 ifconfig "$ifname" up
 239                 iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 240
 241                 local net_cfg bridge
 242                 net_cfg="$(find_net_config "$vif")"
 243                 [ -z "$net_cfg" ] || {
 244                         bridge="$(bridge_interface "$net_cfg")"
 245                         config_set "$vif" bridge "$bridge"
 246                         start_net "$ifname" "$net_cfg"
 247                 }
 248                 iwconfig "$ifname" essid "$ssid"
 249                 set_wifi_up "$vif" "$ifname"
 250                 case "$mode" in
 251                         ap)
 252                                 config_get_bool isolate "$vif" isolate 0
 253                                 iwpriv "$ifname" ap_bridge "$((isolate^1))"
 254
 255                                 if eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 256                                         hostapd_setup_vif "$vif" madwifi || {
 257                                                 echo "enable_atheros($device): Failed to set up wpa for interface $ifname" >&2
 258                                                 # make sure this wifi interface won't accidentally stay open without encryption
 259                                                 ifconfig "$ifname" down
 260                                                 wlanconfig "$ifname" destroy
 261                                                 continue
 262                                         }
 263                                 fi
 264                         ;;
 265                         wds|sta)
 266                                 case "$enc" in
 267                                         PSK|psk|PSK2|psk2)
 268                                                 case "$enc" in
 269                                                         PSK|psk)
 270                                                                 proto='proto=WPA'
 271                                                                 passphrase="${key}"
 272                                                                 ;;
 273                                                         PSK2|psk2)
 274                                                                 proto='proto=RSN'
 275                                                                 passphrase=`wpa_passphrase ${ssid} "${key}" | grep psk | grep -v \#| cut -d= -f2`
 276                                                                 ;;
 277                                                 esac
 278
 279                                                 cat > /var/run/wpa_supplicant-$ifname.conf <<EOF
 280 ctrl_interface=/var/run/wpa_supplicant
 281 network={
 282         scan_ssid=1
 283         ssid="$ssid"
 284         key_mgmt=WPA-PSK
 285         $proto
 286         psk="$passphrase"
 287 }
 288 EOF
 289                                         ;;
 290                                         WPA|wpa|WPA2|wpa2)
 291                                                 #add wpa_supplicant calls here
 292                                         ;;
 293                                 esac
 294                                 [ -z "$proto" ] || wpa_supplicant ${bridge:+ -b $bridge} -B -D wext -i "$ifname" -c /var/run/wpa_supplicant-$ifname.conf
 295                         ;;
 296                 esac
 297                 first=0
 298         done
 299 }
 300
 301
 302 detect_atheros() {
 303         cd /proc/sys/dev
 304         [ -d ath ] || return
 305         for dev in $(ls -d wifi* 2>&-); do
 306                 config_get type "$dev" type
 307                 [ "$type" = atheros ] && return
 308                 cat <<EOF
 309 config wifi-device  $dev
 310         option type     atheros
 311         option channel  auto
 312
 313         # REMOVE THIS LINE TO ENABLE WIFI:
 314         option disabled 1
 315
 316 config wifi-iface
 317         option device   $dev
 318         option network  lan
 319         option mode     ap
 320         option ssid     OpenWrt
 321         option encryption none
 322 EOF
 323         done
 324 }