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 $vifs; do
  42                 config_get_bool disabled "$vif" disabled 0
  43                 [ $disabled = 0 ] || continue
  44
  45                 config_get mode "$vif" mode
  46                 case "$mode" in
  47                         adhoc|sta|ap|monitor)
  48                                 # Only one vif is allowed on AP, station, Ad-hoc or monitor mode
  49                                 [ -z "$mainvif" ] && {
  50                                         mainvif="$vif"
  51                                         config_set "$vif" ifname "$phy"
  52                                 }
  53                         ;;
  54                         wds)
  55                                 config_get ssid "$vif" ssid
  56                                 [ -z "$ssid" ] && continue
  57                                 config_set "$vif" ifname "${phy}wds${_c}"
  58                                 _c=$(($_c + 1))
  59                                 addr="$ssid"
  60                                 ${addr:+append wds "$vif"}
  61                         ;;
  62                         *) echo "$device($vif): Invalid mode, ignored."; continue;;
  63                 esac
  64         done
  65         config_set "$device" vifs "${mainvif:+$mainvif }${wds:+$wds}"
  66 }
  67
  68 disable_prism2() (
  69         local device="$1"
  70
  71         find_prism2_phy "$device" || return 0
  72         config_get phy "$device" phy
  73
  74         set_wifi_down "$device"
  75
  76         include /lib/network
  77         while read line < /proc/net/hostap/${phy}/wds; do
  78                 set $line
  79                 [ -f "/var/run/wifi-${1}.pid" ] &&
  80                         kill "$(cat "/var/run/wifi-${1}.pid")"
  81                 ifconfig "$1" down
  82                 unbridge "$1"
  83                 iwpriv "$phy" wds_del "$2"
  84         done
  85         unbridge "$phy"
  86         return 0
  87 )
  88
  89 enable_prism2() {
  90         local device="$1"
  91
  92         find_prism2_phy "$device" || return 0
  93         config_get phy "$device" phy
  94
  95         config_get rxantenna "$device" rxantenna
  96         config_get txantenna "$device" txantenna
  97         config_get_bool diversity "$device" diversity
  98         [ -n "$diversity" ] && {
  99                 rxantenna="1"
 100                 txantenna="1"
 101         }
 102         [ -n "$rxantenna" ] && iwpriv "$phy" antsel_rx "$rxantenna"
 103         [ -n "$txantenna" ] && iwpriv "$phy" antsel_tx "$txantenna"
 104
 105         config_get channel "$device" channel
 106         [ -n "$channel" ] && iwconfig "$phy" channel "$channel" >/dev/null 2>/dev/null
 107
 108         config_get txpower "$device" txpower
 109         [ -n "$txpower" ] && iwconfig "$phy" txpower "${txpower%%.*}"
 110
 111         config_get vifs "$device" vifs
 112         local first=1
 113         for vif in $vifs; do
 114                 config_get ifname "$vif" ifname
 115                 config_get ssid "$vif" ssid
 116                 config_get mode "$vif" mode
 117
 118                 [ "$mode" = "wds" ] || iwconfig "$phy" essid ${ssid:+-- }"${ssid:-any}"
 119
 120                 case "$mode" in
 121                         sta)
 122                                 iwconfig "$phy" mode managed
 123                                 config_get addr "$device" bssid
 124                                 [ -z "$addr" ] || {
 125                                         iwconfig "$phy" ap "$addr"
 126                                 }
 127                         ;;
 128                         ap) iwconfig "$phy" mode master;;
 129                         wds) iwpriv "$phy" wds_add "$ssid";;
 130                         adhoc) iwconfig "$phy" mode ad-hoc;;
 131                         *) iwconfig "$phy" mode "$mode";;
 132                 esac
 133
 134                 [ "$first" = 1 ] && {
 135                         config_get rate "$vif" rate
 136                         [ -n "$rate" ] && iwconfig "$phy" rate "${rate%%.*}"
 137
 138                         config_get_bool hidden "$vif" hidden 0
 139                         iwpriv "$phy" enh_sec "$hidden"
 140
 141                         config_get frag "$vif" frag
 142                         [ -n "$frag" ] && iwconfig "$phy" frag "${frag%%.*}"
 143
 144                         config_get rts "$vif" rts
 145                         [ -n "$rts" ] && iwconfig "$phy" rts "${rts%%.*}"
 146
 147                         config_get maclist "$vif" maclist
 148                         [ -n "$maclist" ] && {
 149                                 # flush MAC list
 150                                 iwpriv "$phy" maccmd 3
 151                                 for mac in $maclist; do
 152                                         iwpriv "$phy" addmac "$mac"
 153                                 done
 154                         }
 155                         config_get macpolicy "$vif" macpolicy
 156                         case "$macpolicy" in
 157                                 allow)
 158                                         iwpriv "$phy" maccmd 2
 159                                 ;;
 160                                 deny)
 161                                         iwpriv "$phy" maccmd 1
 162                                 ;;
 163                                 *)
 164                                         # default deny policy if mac list exists
 165                                         [ -n "$maclist" ] && iwpriv "$phy" maccmd 1
 166                                 ;;
 167                         esac
 168                         # kick all stations if we have policy explicitly set
 169                         [ -n "$macpolicy" ] && iwpriv "$phy" maccmd 4
 170                 }
 171
 172                 config_get enc "$vif" encryption
 173                 case "$enc" in
 174                         WEP|wep)
 175                                 for idx in 1 2 3 4; do
 176                                         config_get key "$vif" "key${idx}"
 177                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 178                                 done
 179                                 config_get key "$vif" key
 180                                 key="${key:-1}"
 181                                 case "$key" in
 182                                         [1234]) iwconfig "$ifname" enc "[$key]";;
 183                                         *) iwconfig "$ifname" enc "$key";;
 184                                 esac
 185                         ;;
 186                         psk*|wpa*)
 187                                 start_hostapd=1
 188                                 config_get key "$vif" key
 189                         ;;
 190                 esac
 191
 192                 local net_cfg bridge
 193                 net_cfg="$(find_net_config "$vif")"
 194                 [ -z "$net_cfg" ] || {
 195                         bridge="$(bridge_interface "$net_cfg")"
 196                         config_set "$vif" bridge "$bridge"
 197                         start_net "$ifname" "$net_cfg"
 198                 }
 199                 set_wifi_up "$vif" "$ifname"
 200
 201                 case "$mode" in
 202                         ap)
 203                                 if [ -n "$start_hostapd" ] && eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 204                                         hostapd_setup_vif "$vif" hostap || {
 205                                                 echo "enable_prism2($device): Failed to set up hostapd for interface $ifname" >&2
 206                                                 # make sure this wifi interface won't accidentally stay open without encryption
 207                                                 ifconfig "$ifname" down
 208                                                 continue
 209                                         }
 210                                 fi
 211                         ;;
 212                         wds|sta)
 213                                 if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
 214                                         wpa_supplicant_setup_vif "$vif" wext || {
 215                                                 echo "enable_prism2($device): Failed to set up wpa_supplicant for interface $ifname" >&2
 216                                                 ifconfig "$ifname" down
 217                                                 continue
 218                                         }
 219                                 fi
 220                         ;;
 221                 esac
 222                 first=0
 223         done
 224
 225 }
 226
 227 check_prism2_device() {
 228         [ ${1%[0-9]} = "wlan" ] && config_set "$1" phy "$1"
 229         config_get phy "$1" phy
 230         [ -z "$phy" ] && {
 231                 find_prism2_phy "$1" >/dev/null || return 0
 232                 config_get phy "$1" phy
 233         }
 234         [ "$phy" = "$dev" ] && found=1
 235 }
 236
 237 detect_prism2() {
 238         devidx=0
 239         config_load wireless
 240         while :; do
 241                 config_get type "radio$devidx" type
 242                 [ -n "$type" ] || break
 243                 devidx=$(($devidx + 1))
 244         done
 245         cd /proc/net/hostap
 246         [ -d wlan* ] || return
 247         for dev in $(ls -d wlan* 2>&-); do
 248                 found=0
 249                 config_foreach check_prism2_device wifi-device
 250                 [ "$found" -gt 0 ] && continue
 251                 cat <<EOF
 252 config wifi-device radio$devidx
 253         option type     prism2
 254         option channel  11
 255         option macaddr  $(cat /sys/class/net/${dev}/address)
 256
 257         # REMOVE THIS LINE TO ENABLE WIFI:
 258         option disabled 1
 259
 260 config wifi-iface
 261         option device   radio$devidx
 262         option network  lan
 263         option mode     ap
 264         option ssid     OpenWrt
 265         option encryption none
 266
 267 EOF
 268         devidx=$(($devidx + 1))
 269         done
 270 }