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 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 }${monitor:+$monitor}"
  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 "$device" agmode
 100                         [ -z "$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                                 *a) agmode=11a;;
 108                                 *) agmode=auto;;
 109                         esac
 110                         iwpriv "$ifname" mode "$agmode"
 111                         iwpriv "$ifname" pureg "$pureg"
 112                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 113                 }
 114
 115                 config_get_bool hidden "$vif" hidden 0
 116                 iwpriv "$ifname" hide_ssid "$hidden"
 117
 118                 config_get ff "$vif" ff
 119                 if [ -n "$ff" ]; then
 120                         iwpriv "$ifname" ff "$ff"
 121                 fi
 122
 123                 config_get wdssep "$vif" wdssep
 124                 [ -n "$wdssep" ] && iwpriv "$ifname" wdssep "$wdssep"
 125
 126                 config_get wds "$vif" wds
 127                 case "$wds" in
 128                         1|on|enabled) wds=1;;
 129                         *) wds=0;;
 130                 esac
 131                 iwpriv "$ifname" wds "$wds"
 132
 133                 wpa=
 134                 case "$enc" in
 135                         WEP|wep)
 136                                 for idx in 1 2 3 4; do
 137                                         config_get key "$vif" "key${idx}"
 138                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 139                                 done
 140                                 config_get key "$vif" key
 141                                 key="${key:-1}"
 142                                 case "$key" in
 143                                         [1234]) iwconfig "$ifname" enc "[$key]";;
 144                                         *) iwconfig "$ifname" enc "$key";;
 145                                 esac
 146                         ;;
 147                         PSK|psk|PSK2|psk2)
 148                                 config_get key "$vif" key
 149                         ;;
 150                 esac
 151
 152                 case "$mode" in
 153                         wds)
 154                                 config_get addr "$vif" bssid
 155                                 iwpriv "$ifname" wds_add "$addr"
 156                         ;;
 157                         adhoc|ahdemo)
 158                                 config_get addr "$vif" bssid
 159                                 [ -z "$addr" ] || {
 160                                         iwconfig "$ifname" ap "$addr"
 161                                 }
 162                         ;;
 163                 esac
 164                 config_get ssid "$vif" ssid
 165
 166                 config_get_bool bgscan "$vif" bgscan
 167                 [ -n "$bgscan" ] && iwpriv "$ifname" bgscan "$bgscan"
 168
 169                 config_get_bool antdiv "$device" diversity
 170                 [ -n "$antdiv" ] && sysctl -w dev."$device".diversity="$antdiv" >&-
 171
 172                 config_get antrx "$device" rxantenna
 173                 [ -n "$antrx" ] && sysctl -w dev."$device".rxantenna="$antrx" >&-
 174
 175                 config_get anttx "$device" txantenna
 176                 [ -n "$anttx" ] && sysctl -w dev."$device".txantenna="$anttx" >&-
 177
 178                 config_get distance "$device" distance
 179                 [ -n "$distance" ] && athctrl -i "$device" -d "$distance" >&-
 180
 181                 config_get txpwr "$vif" txpower
 182                 [ -n "$txpwr" ] && iwconfig "$ifname" txpower "${txpwr%%.*}"
 183
 184                 config_get rate "$vif" rate
 185                 [ -n "$rate" ] && iwconfig "$ifname" rate "${rate%%.*}"
 186
 187                 config_get mcast_rate "$vif" mcast_rate
 188                 [ -n "$mcast_rate" ] && iwpriv "$ifname" mcast_rate "${mcast_rate%%.*}"
 189
 190                 config_get frag "$vif" frag
 191                 [ -n "$frag" ] && iwconfig "$ifname" frag "${frag%%.*}"
 192
 193                 config_get rts "$vif" rts
 194                 [ -n "$rts" ] && iwconfig "$ifname" rts "${rts%%.*}"
 195
 196                 config_get_bool comp "$vif" compression
 197                 [ -n "$comp" ] && iwpriv "$ifname" compression "$comp"
 198
 199                 config_get_bool minrate "$vif" minrate
 200                 [ -n "$minrate" ] && iwpriv "$ifname" minrate "$minrate"
 201
 202                 config_get_bool maxrate "$vif" maxrate
 203                 [ -n "$maxrate" ] && iwpriv "$ifname" maxrate "$maxrate"
 204
 205                 config_get_bool burst "$vif" bursting
 206                 [ -n "$burst" ] && iwpriv "$ifname" burst "$burst"
 207
 208                 config_get_bool wmm "$vif" wmm
 209                 [ -n "$wmm" ] && iwpriv "$ifname" wmm "$wmm"
 210
 211                 config_get_bool xr "$vif" xr
 212                 [ -n "$xr" ] && iwpriv "$ifname" xr "$xr"
 213
 214                 config_get_bool ar "$vif" ar
 215                 [ -n "$ar" ] && iwpriv "$ifname" ar "$ar"
 216
 217                 config_get_bool turbo "$vif" turbo
 218                 [ -n "$turbo" ] && iwpriv "$ifname" turbo "$turbo"
 219
 220                 config_get_bool doth "$vif" doth 0
 221                 [ -n "$doth" ] && iwpriv "$ifname" doth "$doth"
 222
 223                 config_get maclist "$vif" maclist
 224                 [ -n "$maclist" ] && {
 225                         # flush MAC list
 226                         iwpriv "$ifname" maccmd 3
 227                         for mac in $maclist; do
 228                                 iwpriv "$ifname" addmac "$mac"
 229                         done
 230                 }
 231
 232                 config_get macpolicy "$vif" macpolicy
 233                 case "$macpolicy" in
 234                         allow)
 235                                 iwpriv "$ifname" maccmd 1
 236                         ;;
 237                         deny)
 238                                 iwpriv "$ifname" maccmd 2
 239                         ;;
 240                         *)
 241                                 # default deny policy if mac list exists
 242                                 [ -n "$maclist" ] && iwpriv "$ifname" maccmd 2
 243                         ;;
 244                 esac
 245
 246                 ifconfig "$ifname" up
 247                 local net_cfg bridge
 248                 net_cfg="$(find_net_config "$vif")"
 249                 [ -z "$net_cfg" ] || {
 250                         bridge="$(bridge_interface "$net_cfg")"
 251                         config_set "$vif" bridge "$bridge"
 252                         start_net "$ifname" "$net_cfg"
 253                 }
 254                 iwconfig "$ifname" essid "$ssid"
 255                 set_wifi_up "$vif" "$ifname"
 256                 case "$mode" in
 257                         ap)
 258                                 config_get_bool isolate "$vif" isolate 0
 259                                 iwpriv "$ifname" ap_bridge "$((isolate^1))"
 260
 261                                 if eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 262                                         hostapd_setup_vif "$vif" madwifi || {
 263                                                 echo "enable_atheros($device): Failed to set up wpa for interface $ifname" >&2
 264                                                 # make sure this wifi interface won't accidentally stay open without encryption
 265                                                 ifconfig "$ifname" down
 266                                                 wlanconfig "$ifname" destroy
 267                                                 continue
 268                                         }
 269                                 fi
 270                         ;;
 271                         wds|sta)
 272                                 config_get_bool usepassphrase "$vif" passphrase 1
 273                                 case "$enc" in
 274                                         PSK|psk|PSK2|psk2)
 275                                                 case "$enc" in
 276                                                         PSK|psk)
 277                                                                 proto='proto=WPA'
 278                                                                 if [ "$usepassphrase" = "1" ]; then
 279                                                                         passphrase="psk=\"${key}\""
 280                                                                 else
 281                                                                         passphrase="psk=${key}"
 282                                                                 fi
 283                                                                 ;;
 284                                                         PSK2|psk2)
 285                                                                 proto='proto=RSN'
 286                                                                 if [ "$usepassphrase" = "1" ]; then
 287                                                                         passphrase="psk=\"${key}\""
 288                                                                 else
 289                                                                         passphrase="psk=${key}"
 290                                                                 fi
 291                                                                 ;;
 292                                                 esac
 293                                                 cat > /var/run/wpa_supplicant-$ifname.conf <<EOF
 294 network={
 295         scan_ssid=1
 296         ssid="$ssid"
 297         key_mgmt=WPA-PSK
 298         $proto
 299         $passphrase
 300 }
 301 EOF
 302                                         ;;
 303                                         WPA|wpa|WPA2|wpa2)
 304                                                 #add wpa_supplicant calls here
 305                                         ;;
 306                                 esac
 307                                 [ -z "$proto" ] || wpa_supplicant ${bridge:+ -b $bridge} -B -D madwifi -i "$ifname" -c /var/run/wpa_supplicant-$ifname.conf
 308                         ;;
 309                 esac
 310                 first=0
 311         done
 312 }
 313
 314
 315 detect_atheros() {
 316         cd /proc/sys/dev
 317         [ -d ath ] || return
 318         for dev in $(ls -d wifi* 2>&-); do
 319                 config_get type "$dev" type
 320                 [ "$type" = atheros ] && return
 321                 cat <<EOF
 322 config wifi-device  $dev
 323         option type     atheros
 324         option channel  auto
 325
 326         # REMOVE THIS LINE TO ENABLE WIFI:
 327         option disabled 1
 328
 329 config wifi-iface
 330         option device   $dev
 331         option network  lan
 332         option mode     ap
 333         option ssid     OpenWrt
 334         option encryption none
 335 EOF
 336         done
 337 }