contrib/package/meshwizard/files/usr/bin/meshwizard/helpers/setup_wifi.sh

   1 #!/bin/sh
   2 # sets up a wifi interface for meshing
   3 # Arguments: $1 = network interface
   4
   5 net="$1"
   6 . /lib/functions.sh
   7 . $dir/functions.sh
   8
   9 ##### wifi-device #####
  10
  11 # Get the type before we delete the wifi-device
  12 config_load wireless
  13 config_get type $net type
  14
  15 # Rename wifi-device for $net
  16
  17 handle_wifidevice() {
  18         if [ -z "${1/cfg[0-9a-fA-F]*/}" ]; then
  19                 section_rename wireless $1 $net
  20         fi
  21 }
  22 config_foreach handle_wifidevice wifi-device
  23
  24 # create new wifi-device for $net
  25 uci set wireless.${net}=wifi-device
  26
  27 # get and set wifi-device defaults
  28 set_defaults "wifi_device_" wireless.${net}
  29
  30 channel="$(uci -q get meshwizard.netconfig.$net\_channel)"
  31 vap="$(uci -q get meshwizard.netconfig.$net\_vap)"
  32
  33 if [ -z "$channel" -o "$channel" == "default" ]; then
  34         channel=$wifi_device_channel
  35 fi
  36
  37 uci batch << EOF
  38         set wireless.${net}.type="$type"
  39         set wireless.${net}.channel="$channel"
  40 EOF
  41
  42 uci_commitverbose "Setup wifi device for $netrenamed" wireless
  43
  44 ##### wifi iface
  45
  46 # Rename wifi-iface for $net
  47 handle_interface() {
  48         config_get device "$1" device
  49         if [ "$device" == "$net" ]; then
  50                 if [ -z "${1/cfg[0-9a-fA-F]*/}" ]; then
  51                         section_rename wireless $1 ${net}_iface
  52                 fi
  53         fi
  54 }
  55 config_foreach handle_interface wifi-iface
  56
  57 # create new wifi-device for $net
  58 uci set wireless.$net\_iface=wifi-iface
  59
  60 # create new wifi-iface for $net from defaults
  61 set_defaults "wifi_iface_" wireless.$net\_iface
  62
  63 # overwrite defaults
  64 bssid="$($dir/helpers/gen_bssid.sh $channel $community)"
  65
  66 ssid="$profile_ssid"
  67 if [ "$profile_ssid_scheme" == "addchannel" ]; then
  68         ssid="$ssid - ch$channel"
  69 fi
  70
  71 uci batch << EOF
  72         set wireless.$net\_iface.device="${net}"
  73         set wireless.$net\_iface.network="$netrenamed"
  74         set wireless.$net\_iface.ssid="$ssid"
  75         set wireless.$net\_iface.bssid="$bssid"
  76 EOF
  77
  78 uci_commitverbose "Setup wifi interface for $netrenamed" wireless
  79
  80 ## VAP
  81 ip4addr="$(uci get meshwizard.netconfig.$net\_ip4addr)"
  82
  83 # check if this hardware supports VAPs
  84 # the interface needs to be up before the check can happen
  85
  86 /sbin/wifi
  87
  88 supports_vap="0"
  89 $dir/helpers/supports_vap.sh $net $type && supports_vap=1
  90
  91 if [ "$supports_vap" == "1" -a "$vap" == 1 ]; then
  92         uci batch <<- EOF
  93                 set wireless.$net\_iface_dhcp="wifi-iface"
  94                 set wireless.$net\_iface_dhcp.device="$net"
  95                 set wireless.$net\_iface_dhcp.mode="ap"
  96                 set wireless.$net\_iface_dhcp.encryption="none"
  97                 set wireless.$net\_iface_dhcp.network="${netrenamed}dhcp"
  98                 set wireless.$net\_iface_dhcp.ssid="Freifunk-$ip4addr"
  99         EOF
 100         uci_commitverbose "Setup VAP interface for $netrenamed" wireless
 101 fi
 102