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 $vifs; do
  81                 nosbeacon=
  82                 config_get ifname "$vif" ifname
  83                 config_get enc "$vif" encryption
  84                 config_get mode "$vif" mode
  85
  86                 [ "$mode" = sta ] && config_get nosbeacon "$device" nosbeacon
  87
  88                 config_get ifname "$vif" ifname
  89                 ifname=$(wlanconfig "$ifname" create wlandev "$device" wlanmode "$mode" ${nosbeacon:+nosbeacon})
  90                 [ $? -ne 0 ] && {
  91                         echo "enable_atheros($device): Failed to set up $mode vif $ifname" >&2
  92                         continue
  93                 }
  94                 config_set "$vif" ifname "$ifname"
  95
  96                 [ "$first" = 1 ] && {
  97                         # only need to change freq band and channel on the first vif
  98                         config_get agmode "$device" agmode
  99                         [ -z "$agmode" ] && config_get agmode "$device" mode
 100
 101                         pureg=0
 102                         case "$agmode" in
 103                                 *b) agmode=11b;;
 104                                 *bg) agmode=11g;;
 105                                 *g) agmode=11g; pureg=1;;
 106                                 *gdt) agmode=11gdt;;
 107                                 *a) agmode=11a;;
 108                                 *adt) agmode=11adt;;
 109                                 *ast) agmode=11ast;;
 110                                 *fh) agmode=fh;;
 111                                 *) agmode=auto;;
 112                         esac
 113                         iwpriv "$ifname" mode "$agmode"
 114                         iwpriv "$ifname" pureg "$pureg"
 115                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 116                 }
 117
 118                 config_get_bool hidden "$vif" hidden 0
 119                 iwpriv "$ifname" hide_ssid "$hidden"
 120
 121                 config_get ff "$vif" ff
 122                 if [ -n "$ff" ]; then
 123                         iwpriv "$ifname" ff "$ff"
 124                 fi
 125
 126                 config_get wds "$vif" wds
 127                 case "$wds" in
 128                         1|on|enabled) wds=1;;
 129                         *) wds=0;;
 130                 esac
 131                 iwpriv "$ifname" wds "$wds"
 132
 133                 [ "$mode" = ap -a "$wds" = 1 ] && {
 134                         config_get_bool wdssep "$vif" wdssep 1
 135                         [ -n "$wdssep" ] && iwpriv "$ifname" wdssep "$wdssep"
 136                 }
 137
 138                 wpa=
 139                 case "$enc" in
 140                         WEP|wep)
 141                                 for idx in 1 2 3 4; do
 142                                         config_get key "$vif" "key${idx}"
 143                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 144                                 done
 145                                 config_get key "$vif" key
 146                                 key="${key:-1}"
 147                                 case "$key" in
 148                                         [1234]) iwconfig "$ifname" enc "[$key]";;
 149                                         *) iwconfig "$ifname" enc "$key";;
 150                                 esac
 151                         ;;
 152                         PSK|psk|PSK2|psk2)
 153                                 config_get key "$vif" key
 154                         ;;
 155                 esac
 156
 157                 case "$mode" in
 158                         adhoc|ahdemo)
 159                                 config_get addr "$vif" bssid
 160                                 [ -z "$addr" ] || {
 161                                         iwconfig "$ifname" ap "$addr"
 162                                 }
 163                         ;;
 164                 esac
 165                 config_get ssid "$vif" ssid
 166
 167                 config_get_bool bgscan "$vif" bgscan
 168                 [ -n "$bgscan" ] && iwpriv "$ifname" bgscan "$bgscan"
 169
 170                 config_get_bool antdiv "$device" diversity
 171                 [ -n "$antdiv" ] && sysctl -w dev."$device".diversity="$antdiv" >&-
 172
 173                 config_get antrx "$device" rxantenna
 174                 [ -n "$antrx" ] && sysctl -w dev."$device".rxantenna="$antrx" >&-
 175
 176                 config_get anttx "$device" txantenna
 177                 [ -n "$anttx" ] && sysctl -w dev."$device".txantenna="$anttx" >&-
 178
 179                 config_get distance "$device" distance
 180                 [ -n "$distance" ] && athctrl -i "$device" -d "$distance" >&-
 181
 182                 config_get txpwr "$vif" txpower
 183                 [ -n "$txpwr" ] && iwconfig "$ifname" txpower "${txpwr%%.*}"
 184
 185                 config_get rate "$vif" rate
 186                 [ -n "$rate" ] && iwconfig "$ifname" rate "${rate%%.*}"
 187
 188                 config_get mcast_rate "$vif" mcast_rate
 189                 [ -n "$mcast_rate" ] && iwpriv "$ifname" mcast_rate "${mcast_rate%%.*}"
 190
 191                 config_get frag "$vif" frag
 192                 [ -n "$frag" ] && iwconfig "$ifname" frag "${frag%%.*}"
 193
 194                 config_get rts "$vif" rts
 195                 [ -n "$rts" ] && iwconfig "$ifname" rts "${rts%%.*}"
 196
 197                 config_get_bool comp "$vif" compression
 198                 [ -n "$comp" ] && iwpriv "$ifname" compression "$comp"
 199
 200                 config_get_bool minrate "$vif" minrate
 201                 [ -n "$minrate" ] && iwpriv "$ifname" minrate "$minrate"
 202
 203                 config_get_bool maxrate "$vif" maxrate
 204                 [ -n "$maxrate" ] && iwpriv "$ifname" maxrate "$maxrate"
 205
 206                 config_get_bool burst "$vif" bursting
 207                 [ -n "$burst" ] && iwpriv "$ifname" burst "$burst"
 208
 209                 config_get_bool wmm "$vif" wmm
 210                 [ -n "$wmm" ] && iwpriv "$ifname" wmm "$wmm"
 211
 212                 config_get_bool xr "$vif" xr
 213                 [ -n "$xr" ] && iwpriv "$ifname" xr "$xr"
 214
 215                 config_get_bool ar "$vif" ar
 216                 [ -n "$ar" ] && iwpriv "$ifname" ar "$ar"
 217
 218                 config_get_bool turbo "$vif" turbo
 219                 [ -n "$turbo" ] && iwpriv "$ifname" turbo "$turbo"
 220
 221                 config_get_bool doth "$vif" doth 0
 222                 [ -n "$doth" ] && iwpriv "$ifname" doth "$doth"
 223
 224                 config_get maclist "$vif" maclist
 225                 [ -n "$maclist" ] && {
 226                         # flush MAC list
 227                         iwpriv "$ifname" maccmd 3
 228                         for mac in $maclist; do
 229                                 iwpriv "$ifname" addmac "$mac"
 230                         done
 231                 }
 232
 233                 config_get macpolicy "$vif" macpolicy
 234                 case "$macpolicy" in
 235                         allow)
 236                                 iwpriv "$ifname" maccmd 1
 237                         ;;
 238                         deny)
 239                                 iwpriv "$ifname" maccmd 2
 240                         ;;
 241                         *)
 242                                 # default deny policy if mac list exists
 243                                 [ -n "$maclist" ] && iwpriv "$ifname" maccmd 2
 244                         ;;
 245                 esac
 246
 247                 ifconfig "$ifname" up
 248                 local net_cfg bridge
 249                 net_cfg="$(find_net_config "$vif")"
 250                 [ -z "$net_cfg" ] || {
 251                         bridge="$(bridge_interface "$net_cfg")"
 252                         config_set "$vif" bridge "$bridge"
 253                         start_net "$ifname" "$net_cfg"
 254                 }
 255                 iwconfig "$ifname" essid "$ssid"
 256                 set_wifi_up "$vif" "$ifname"
 257                 case "$mode" in
 258                         ap)
 259                                 config_get_bool isolate "$vif" isolate 0
 260                                 iwpriv "$ifname" ap_bridge "$((isolate^1))"
 261
 262                                 if eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 263                                         hostapd_setup_vif "$vif" madwifi || {
 264                                                 echo "enable_atheros($device): Failed to set up wpa for interface $ifname" >&2
 265                                                 # make sure this wifi interface won't accidentally stay open without encryption
 266                                                 ifconfig "$ifname" down
 267                                                 wlanconfig "$ifname" destroy
 268                                                 continue
 269                                         }
 270                                 fi
 271                         ;;
 272                         wds|sta)
 273                                 config_get_bool usepassphrase "$vif" passphrase 1
 274                                 case "$enc" in
 275                                         PSK|psk|PSK2|psk2)
 276                                                 case "$enc" in
 277                                                         PSK|psk)
 278                                                                 proto='proto=WPA'
 279                                                                 if [ "$usepassphrase" = "1" ]; then
 280                                                                         passphrase="psk=\"${key}\""
 281                                                                 else
 282                                                                         passphrase="psk=${key}"
 283                                                                 fi
 284                                                                 ;;
 285                                                         PSK2|psk2)
 286                                                                 proto='proto=RSN'
 287                                                                 if [ "$usepassphrase" = "1" ]; then
 288                                                                         passphrase="psk=\"${key}\""
 289                                                                 else
 290                                                                         passphrase="psk=${key}"
 291                                                                 fi
 292                                                                 ;;
 293                                                 esac
 294                                                 cat > /var/run/wpa_supplicant-$ifname.conf <<EOF
 295 network={
 296         scan_ssid=1
 297         ssid="$ssid"
 298         key_mgmt=WPA-PSK
 299         $proto
 300         $passphrase
 301 }
 302 EOF
 303                                         ;;
 304                                         WPA|wpa|WPA2|wpa2)
 305                                                 #add wpa_supplicant calls here
 306                                         ;;
 307                                 esac
 308                                 [ -z "$proto" ] || wpa_supplicant ${bridge:+ -b $bridge} -B -D madwifi -i "$ifname" -c /var/run/wpa_supplicant-$ifname.conf
 309                         ;;
 310                 esac
 311                 first=0
 312         done
 313 }
 314
 315
 316 detect_atheros() {
 317         cd /proc/sys/dev
 318         [ -d ath ] || return
 319         for dev in $(ls -d wifi* 2>&-); do
 320                 config_get type "$dev" type
 321                 [ "$type" = atheros ] && return
 322                 cat <<EOF
 323 config wifi-device  $dev
 324         option type     atheros
 325         option channel  auto
 326
 327         # REMOVE THIS LINE TO ENABLE WIFI:
 328         option disabled 1
 329
 330 config wifi-iface
 331         option device   $dev
 332         option network  lan
 333         option mode     ap
 334         option ssid     OpenWrt
 335         option encryption none
 336 EOF
 337         done
 338 }