package/hostap-driver/files/lib/wifi/hostap.sh

   1 #!/bin/sh
   2 append DRIVERS "prism2"
   3
   4 find_prism2_phy() {
   5         local device="$1"
   6
   7         local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
   8         config_get phy "$device" phy
   9         [ -z "$phy" -a -n "$macaddr" ] && {
  10                 cd /proc/net/hostap
  11                 for phy in $(ls -d wlan* 2>&-); do
  12                         [ "$macaddr" = "$(cat /sys/class/net/${phy}/address)" ] || continue
  13                         config_set "$device" phy "$phy"
  14                         break
  15                 done
  16                 config_get phy "$device" phy
  17         }
  18         [ -n "$phy" -a -d "/proc/net/hostap/$phy" ] || {
  19                 echo "phy for wifi device $1 not found"
  20                 return 1
  21         }
  22         [ -z "$macaddr" ] && {
  23                 config_set "$device" macaddr "$(cat /sys/class/net/${phy}/address)"
  24         }
  25         return 0
  26 }
  27
  28 scan_prism2() {
  29         local device="$1"
  30         local mainvif
  31         local wds
  32
  33         [ ${device%[0-9]} = "wlan" ] && config_set "$device" phy "$device" || find_prism2_phy "$device" || {
  34                 config_unset "$device" vifs
  35                 return 0
  36         }
  37         config_get phy "$device" phy
  38
  39         config_get vifs "$device" vifs
  40         local _c=0
  41         for vif in $vifs; do
  42                 config_get mode "$vif" mode
  43                 case "$mode" in
  44                         adhoc|sta|ap|monitor)
  45                                 # Only one vif is allowed on AP, station, Ad-hoc or monitor mode
  46                                 [ -z "$mainvif" ] && {
  47                                         mainvif="$vif"
  48                                         config_set "$vif" ifname "$phy"
  49                                 }
  50                         ;;
  51                         wds)
  52                                 config_get ssid "$vif" ssid
  53                                 [ -z "$ssid" ] && continue
  54                                 config_set "$vif" ifname "${phy}wds${_c}"
  55                                 _c=$(($_c + 1))
  56                                 addr="$ssid"
  57                                 ${addr:+append wds "$vif"}
  58                         ;;
  59                         *) echo "$device($vif): Invalid mode, ignored."; continue;;
  60                 esac
  61         done
  62         config_set "$device" vifs "${mainvif:+$mainvif }${wds:+$wds}"
  63 }
  64
  65 disable_prism2() (
  66         local device="$1"
  67
  68         find_prism2_phy "$device" || return 0
  69         config_get phy "$device" phy
  70
  71         set_wifi_down "$device"
  72
  73         include /lib/network
  74         while read line < /proc/net/hostap/${phy}/wds; do
  75                 set $line
  76                 [ -f "/var/run/wifi-${1}.pid" ] &&
  77                         kill "$(cat "/var/run/wifi-${1}.pid")"
  78                 ifconfig "$1" down
  79                 unbridge "$1"
  80                 iwpriv "$phy" wds_del "$2"
  81         done
  82         unbridge "$phy"
  83         return 0
  84 )
  85
  86 enable_prism2() {
  87         local device="$1"
  88
  89         find_prism2_phy "$device" || return 0
  90         config_get phy "$device" phy
  91
  92         config_get rxantenna "$device" rxantenna
  93         config_get txantenna "$device" txantenna
  94         config_get_bool diversity "$device" diversity
  95         [ -n "$diversity" ] && {
  96                 rxantenna="1"
  97                 txantenna="1"
  98         }
  99         [ -n "$rxantenna" ] && iwpriv "$phy" antsel_rx "$rxantenna"
 100         [ -n "$txantenna" ] && iwpriv "$phy" antsel_tx "$txantenna"
 101
 102         config_get channel "$device" channel
 103         [ -n "$channel" ] && iwconfig "$phy" channel "$channel" >/dev/null 2>/dev/null
 104
 105         config_get txpower "$device" txpower
 106         [ -n "$txpower" ] && iwconfig "$phy" txpower "${txpower%%.*}"
 107
 108         config_get vifs "$device" vifs
 109         local first=1
 110         for vif in $vifs; do
 111                 config_get ifname "$vif" ifname
 112                 config_get ssid "$vif" ssid
 113                 config_get mode "$vif" mode
 114
 115                 [ "$mode" = "wds" ] || iwconfig "$phy" essid ${ssid:+-- }"${ssid:-any}"
 116
 117                 case "$mode" in
 118                         sta)
 119                                 iwconfig "$phy" mode managed
 120                                 config_get addr "$device" bssid
 121                                 [ -z "$addr" ] || {
 122                                         iwconfig "$phy" ap "$addr"
 123                                 }
 124                         ;;
 125                         ap) iwconfig "$phy" mode master;;
 126                         wds) iwpriv "$phy" wds_add "$ssid";;
 127                         adhoc) iwconfig "$phy" mode ad-hoc;;
 128                         *) iwconfig "$phy" mode "$mode";;
 129                 esac
 130
 131                 [ "$first" = 1 ] && {
 132                         config_get rate "$vif" rate
 133                         [ -n "$rate" ] && iwconfig "$phy" rate "${rate%%.*}"
 134
 135                         config_get_bool hidden "$vif" hidden 0
 136                         iwpriv "$phy" enh_sec "$hidden"
 137
 138                         config_get frag "$vif" frag
 139                         [ -n "$frag" ] && iwconfig "$phy" frag "${frag%%.*}"
 140
 141                         config_get rts "$vif" rts
 142                         [ -n "$rts" ] && iwconfig "$phy" rts "${rts%%.*}"
 143
 144                         config_get maclist "$vif" maclist
 145                         [ -n "$maclist" ] && {
 146                                 # flush MAC list
 147                                 iwpriv "$phy" maccmd 3
 148                                 for mac in $maclist; do
 149                                         iwpriv "$phy" addmac "$mac"
 150                                 done
 151                         }
 152                         config_get macpolicy "$vif" macpolicy
 153                         case "$macpolicy" in
 154                                 allow)
 155                                         iwpriv "$phy" maccmd 2
 156                                 ;;
 157                                 deny)
 158                                         iwpriv "$phy" maccmd 1
 159                                 ;;
 160                                 *)
 161                                         # default deny policy if mac list exists
 162                                         [ -n "$maclist" ] && iwpriv "$phy" maccmd 1
 163                                 ;;
 164                         esac
 165                         # kick all stations if we have policy explicitly set
 166                         [ -n "$macpolicy" ] && iwpriv "$phy" maccmd 4
 167                 }
 168
 169                 config_get enc "$vif" encryption
 170                 case "$enc" in
 171                         WEP|wep)
 172                                 for idx in 1 2 3 4; do
 173                                         config_get key "$vif" "key${idx}"
 174                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 175                                 done
 176                                 config_get key "$vif" key
 177                                 key="${key:-1}"
 178                                 case "$key" in
 179                                         [1234]) iwconfig "$ifname" enc "[$key]";;
 180                                         *) iwconfig "$ifname" enc "$key";;
 181                                 esac
 182                         ;;
 183                         psk*|wpa*)
 184                                 start_hostapd=1
 185                                 config_get key "$vif" key
 186                         ;;
 187                 esac
 188
 189                 local net_cfg bridge
 190                 net_cfg="$(find_net_config "$vif")"
 191                 [ -z "$net_cfg" ] || {
 192                         bridge="$(bridge_interface "$net_cfg")"
 193                         config_set "$vif" bridge "$bridge"
 194                         start_net "$ifname" "$net_cfg"
 195                 }
 196                 set_wifi_up "$vif" "$ifname"
 197
 198                 case "$mode" in
 199                         ap)
 200                                 if [ -n "$start_hostapd" ] && eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 201                                         hostapd_setup_vif "$vif" hostap || {
 202                                                 echo "enable_prism2($device): Failed to set up hostapd for interface $ifname" >&2
 203                                                 # make sure this wifi interface won't accidentally stay open without encryption
 204                                                 ifconfig "$ifname" down
 205                                                 continue
 206                                         }
 207                                 fi
 208                         ;;
 209                         wds|sta)
 210                                 if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
 211                                         wpa_supplicant_setup_vif "$vif" hostap || {
 212                                                 echo "enable_prism2($device): Failed to set up wpa_supplicant for interface $ifname" >&2
 213                                                 ifconfig "$ifname" down
 214                                                 continue
 215                                         }
 216                                 fi
 217                         ;;
 218                 esac
 219                 first=0
 220         done
 221
 222 }
 223
 224 check_prism2_device() {
 225         [ ${1%[0-9]} = "wlan" ] && config_set "$1" phy "$1"
 226         config_get phy "$1" phy
 227         [ -z "$phy" ] && {
 228                 find_prism2_phy "$1" >/dev/null || return 0
 229                 config_get phy "$1" phy
 230         }
 231         [ "$phy" = "$dev" ] && found=1
 232 }
 233
 234 detect_prism2() {
 235         devidx=0
 236         config_load wireless
 237         while :; do
 238                 config_get type "radio$devidx" type
 239                 [ -n "$type" ] || break
 240                 devidx=$(($devidx + 1))
 241         done
 242         cd /proc/net/hostap
 243         [ -d wlan* ] || return
 244         for dev in $(ls -d wlan* 2>&-); do
 245                 found=0
 246                 config_foreach check_prism2_device wifi-device
 247                 [ "$found" -gt 0 ] && continue
 248                 cat <<EOF
 249
 250 config wifi-device radio$devidx
 251         option type     prism2
 252         option channel  11
 253         option macaddr  $(cat /sys/class/net/${dev}/address)
 254
 255         # REMOVE THIS LINE TO ENABLE WIFI:
 256         option disabled 1
 257
 258 config wifi-iface
 259         option device   radio$devidx
 260         option network  lan
 261         option mode     ap
 262         option ssid     OpenWrt
 263         option encryption none
 264
 265 EOF
 266         devidx=$(($devidx + 1))
 267         done
 268 }