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 -- "$ssid"
 116
 117                 case "$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                         *) iwconfig "$phy" mode "$mode";;
 128                 esac
 129
 130                 [ "$first" = 1 ] && {
 131                         config_get rate "$vif" rate
 132                         [ -n "$rate" ] && iwconfig "$phy" rate "${rate%%.*}"
 133
 134                         config_get_bool hidden "$vif" hidden 0
 135                         iwpriv "$phy" enh_sec "$hidden"
 136
 137                         config_get frag "$vif" frag
 138                         [ -n "$frag" ] && iwconfig "$phy" frag "${frag%%.*}"
 139
 140                         config_get rts "$vif" rts
 141                         [ -n "$rts" ] && iwconfig "$phy" rts "${rts%%.*}"
 142
 143                         config_get maclist "$vif" maclist
 144                         [ -n "$maclist" ] && {
 145                                 # flush MAC list
 146                                 iwpriv "$phy" maccmd 3
 147                                 for mac in $maclist; do
 148                                         iwpriv "$phy" addmac "$mac"
 149                                 done
 150                         }
 151                         config_get macpolicy "$vif" macpolicy
 152                         case "$macpolicy" in
 153                                 allow)
 154                                         iwpriv "$phy" maccmd 2
 155                                 ;;
 156                                 deny)
 157                                         iwpriv "$phy" maccmd 1
 158                                 ;;
 159                                 *)
 160                                         # default deny policy if mac list exists
 161                                         [ -n "$maclist" ] && iwpriv "$phy" maccmd 1
 162                                 ;;
 163                         esac
 164                         # kick all stations if we have policy explicitly set
 165                         [ -n "$macpolicy" ] && iwpriv "$phy" maccmd 4
 166                 }
 167
 168                 config_get enc "$vif" encryption
 169                 case "$enc" in
 170                         WEP|wep)
 171                                 for idx in 1 2 3 4; do
 172                                         config_get key "$vif" "key${idx}"
 173                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 174                                 done
 175                                 config_get key "$vif" key
 176                                 key="${key:-1}"
 177                                 case "$key" in
 178                                         [1234]) iwconfig "$ifname" enc "[$key]";;
 179                                         *) iwconfig "$ifname" enc "$key";;
 180                                 esac
 181                         ;;
 182                         psk*|wpa*)
 183                                 start_hostapd=1
 184                                 config_get key "$vif" key
 185                         ;;
 186                 esac
 187
 188                 local net_cfg bridge
 189                 net_cfg="$(find_net_config "$vif")"
 190                 [ -z "$net_cfg" ] || {
 191                         bridge="$(bridge_interface "$net_cfg")"
 192                         config_set "$vif" bridge "$bridge"
 193                         start_net "$ifname" "$net_cfg"
 194                 }
 195                 set_wifi_up "$vif" "$ifname"
 196
 197                 case "$mode" in
 198                         ap)
 199                                 if [ -n "$start_hostapd" ] && eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 200                                         hostapd_setup_vif "$vif" hostap || {
 201                                                 echo "enable_prism2($device): Failed to set up hostapd for interface $ifname" >&2
 202                                                 # make sure this wifi interface won't accidentally stay open without encryption
 203                                                 ifconfig "$ifname" down
 204                                                 continue
 205                                         }
 206                                 fi
 207                         ;;
 208                         wds|sta)
 209                                 if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
 210                                         wpa_supplicant_setup_vif "$vif" hostap || {
 211                                                 echo "enable_prism2($device): Failed to set up wpa_supplicant for interface $ifname" >&2
 212                                                 ifconfig "$ifname" down
 213                                                 continue
 214                                         }
 215                                 fi
 216                         ;;
 217                 esac
 218                 first=0
 219         done
 220
 221 }
 222
 223 check_device() {
 224         [ ${1%[0-9]} = "wlan" ] && config_set "$1" phy "$1"
 225         config_get phy "$1" phy
 226         [ -z "$phy" ] && {
 227                 find_prism2_phy "$1" >/dev/null || return 0
 228                 config_get phy "$1" phy
 229         }
 230         [ "$phy" = "$dev" ] && found=1
 231 }
 232
 233 detect_prism2() {
 234         devidx=0
 235         config_load wireless
 236         while :; do
 237                 config_get type "radio$devidx" type
 238                 [ -n "$type" ] || break
 239                 devidx=$(($devidx + 1))
 240         done
 241         cd /proc/net/hostap
 242         [ -d wlan* ] || return
 243         for dev in $(ls -d wlan* 2>&-); do
 244                 found=0
 245                 config_foreach check_device wifi-device
 246                 [ "$found" -gt 0 ] && continue
 247                 cat <<EOF
 248
 249 config wifi-device radio$devidx
 250         option type     prism2
 251         option channel  11
 252         option macaddr  $(cat /sys/class/net/${dev}/address)
 253
 254         # REMOVE THIS LINE TO ENABLE WIFI:
 255         option disabled 1
 256
 257 config wifi-iface
 258         option device   radio$devidx
 259         option network  lan
 260         option mode     ap
 261         option ssid     OpenWrt
 262         option encryption none
 263 EOF
 264         devidx=$(($devidx + 1))
 265         done
 266 }