mac80211: broadcast the country IE by default if the country code is configured ...
[openwrt/svn-archive/archive.git] / package / mac80211 / files / lib / wifi / mac80211.sh
index f530d7e..2ca63bb 100644 (file)
@@ -1,8 +1,179 @@
 #!/bin/sh
 append DRIVERS "mac80211"
 
+mac80211_hostapd_setup_base() {
+       local phy="$1"
+       local ifname="$2"
+
+       cfgfile="/var/run/hostapd-$phy.conf"
+       macfile="/var/run/hostapd-$phy.maclist"
+       [ -e "$macfile" ] && rm -f "$macfile"
+
+       config_get device "$vif" device
+       config_get country "$device" country
+       config_get hwmode "$device" hwmode
+       config_get channel "$device" channel
+       config_get beacon_int "$device" beacon_int
+       config_get basic_rate_list "$device" basic_rate
+       config_get_bool noscan "$device" noscan
+       [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
+       [ "$channel" = auto ] && channel=
+       [ -n "$hwmode" ] && {
+               config_get hwmode_11n "$device" hwmode_11n
+               [ -n "$hwmode_11n" ] && {
+                       hwmode="$hwmode_11n"
+                       append base_cfg "ieee80211n=1" "$N"
+                       config_get htmode "$device" htmode
+                       config_get ht_capab_list "$device" ht_capab
+                       case "$htmode" in
+                               HT20|HT40+|HT40-) ht_capab="[$htmode]";;
+                               *)ht_capab=;;
+                       esac
+                       for cap in $ht_capab_list; do
+                               ht_capab="$ht_capab[$cap]"
+                       done
+                       [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
+               }
+       }
+
+       local country_ie=0
+       [ -n "$country" ] && country_ie=1
+       config_get_bool country_ie "$device" country_ie "$country_ie"
+       [ "$country_ie" -gt 0 ] && append base_cfg "ieee80211d=1" "$N"
+
+       config_get macfilter "$vif" macfilter
+       case "$macfilter" in
+               allow)
+                       append base_cfg "macaddr_acl=1" "$N"
+                       append base_cfg "accept_mac_file=$macfile" "$N"
+                       ;;
+               deny)
+                       append base_cfg "macaddr_acl=0" "$N"
+                       append base_cfg "deny_mac_file=$macfile" "$N"
+                       ;;
+       esac
+       config_get maclist "$vif" maclist
+       [ -n "$maclist" ] && {
+               for mac in $maclist; do
+                       echo "$mac" >> $macfile
+               done
+       }
+
+       local br brval brstr
+       [ -n "$basic_rate_list" ] && {
+               for br in $basic_rate_list; do
+                       brval="$(($br / 100))"
+                       [ -n "$brstr" ] && brstr="$brstr "
+                       brstr="$brstr$brval"
+               done
+       }
+       
+       cat >> "$cfgfile" <<EOF
+ctrl_interface=/var/run/hostapd-$phy
+driver=nl80211
+wmm_ac_bk_cwmin=4
+wmm_ac_bk_cwmax=10
+wmm_ac_bk_aifs=7
+wmm_ac_bk_txop_limit=0
+wmm_ac_bk_acm=0
+wmm_ac_be_aifs=3
+wmm_ac_be_cwmin=4
+wmm_ac_be_cwmax=10
+wmm_ac_be_txop_limit=0
+wmm_ac_be_acm=0
+wmm_ac_vi_aifs=2
+wmm_ac_vi_cwmin=3
+wmm_ac_vi_cwmax=4
+wmm_ac_vi_txop_limit=94
+wmm_ac_vi_acm=0
+wmm_ac_vo_aifs=2
+wmm_ac_vo_cwmin=2
+wmm_ac_vo_cwmax=3
+wmm_ac_vo_txop_limit=47
+wmm_ac_vo_acm=0
+tx_queue_data3_aifs=7
+tx_queue_data3_cwmin=15
+tx_queue_data3_cwmax=1023
+tx_queue_data3_burst=0
+tx_queue_data2_aifs=3
+tx_queue_data2_cwmin=15
+tx_queue_data2_cwmax=63
+tx_queue_data2_burst=0
+tx_queue_data1_aifs=1
+tx_queue_data1_cwmin=7
+tx_queue_data1_cwmax=15
+tx_queue_data1_burst=3.0
+tx_queue_data0_aifs=1
+tx_queue_data0_cwmin=3
+tx_queue_data0_cwmax=7
+tx_queue_data0_burst=1.5
+${hwmode:+hw_mode=$hwmode}
+${channel:+channel=$channel}
+${beacon_int:+beacon_int=$beacon_int}
+${country:+country_code=$country}
+${noscan:+noscan=$noscan}
+${brstr:+basic_rates=$brstr}
+$base_cfg
+
+EOF
+}
+
+mac80211_hostapd_setup_bss() {
+       local phy="$1"
+       local vif="$2"
+
+       hostapd_cfg=
+       cfgfile="/var/run/hostapd-$phy.conf"
+       config_get ifname "$vif" ifname
+
+       if [ -f "$cfgfile" ]; then
+               append hostapd_cfg "bss=$ifname" "$N"
+       else
+               mac80211_hostapd_setup_base "$phy" "$ifname"
+               append hostapd_cfg "interface=$ifname" "$N"
+       fi
+
+       local net_cfg bridge
+       net_cfg="$(find_net_config "$vif")"
+       [ -z "$net_cfg" ] || bridge="$(bridge_interface "$net_cfg")"
+       config_set "$vif" bridge "$bridge"
+
+       hostapd_set_bss_options hostapd_cfg "$vif"
+
+       config_get_bool wds "$vif" wds 0
+       [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
+
+       local macaddr hidden maxassoc wmm
+       config_get macaddr "$vif" macaddr
+       config_get maxassoc "$vif" maxassoc
+       config_get dtim_period "$vif" dtim_period
+       config_get max_listen_int "$vif" max_listen_int
+       config_get_bool hidden "$vif" hidden 0
+       config_get_bool wmm "$vif" wmm 1
+       cat >> /var/run/hostapd-$phy.conf <<EOF
+$hostapd_cfg
+wmm_enabled=$wmm
+bssid=$macaddr
+ignore_broadcast_ssid=$hidden
+${dtim_period:+dtim_period=$dtim_period}
+${max_listen_int:+max_listen_interval=$max_listen_int}
+${maxassoc:+max_num_sta=$maxassoc}
+EOF
+}
+
+mac80211_start_vif() {
+       local vif="$1"
+       local ifname="$2"
+
+       local net_cfg
+       net_cfg="$(find_net_config "$vif")"
+       [ -z "$net_cfg" ] || start_net "$ifname" "$net_cfg"
+
+       set_wifi_up "$vif" "$ifname"
+}
+
 find_mac80211_phy() {
-       config_get device "$1"
+       local device="$1"
 
        local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
        config_get phy "$device" phy
@@ -42,6 +213,14 @@ scan_mac80211() {
        config_set "$device" vifs "${ap:+$ap }${adhoc:+$adhoc }${sta:+$sta }${monitor:+$monitor }${mesh:+$mesh}"
 }
 
+list_phy_interfaces() {
+       local phy="$1"
+       if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then
+               ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null;
+       else
+               ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g'
+       fi
+}
 
 disable_mac80211() (
        local device="$1"
@@ -52,13 +231,18 @@ disable_mac80211() (
        set_wifi_down "$device"
        # kill all running hostapd and wpa_supplicant processes that
        # are running on atheros/mac80211 vifs
-       for pid in `pidof hostapd wpa_supplicant`; do
-               grep wlan /proc/$pid/cmdline >/dev/null && \
+       for pid in `pidof hostapd`; do
+               grep -E "$phy" /proc/$pid/cmdline >/dev/null && \
                        kill $pid
        done
 
        include /lib/network
-       for wdev in $(ls /sys/class/ieee80211/${phy}/device/net 2>/dev/null); do
+       for wdev in $(list_phy_interfaces "$phy"); do
+               [ -f "/var/run/$wdev.pid" ] && kill $(cat /var/run/$wdev.pid) >&/dev/null 2>&1
+               for pid in `pidof wpa_supplicant`; do
+                       grep "$wdev" /proc/$pid/cmdline >/dev/null && \
+                               kill $pid
+               done
                ifconfig "$wdev" down 2>/dev/null
                unbridge "$dev"
                iw dev "$wdev" del
@@ -76,15 +260,31 @@ enable_mac80211() {
        config_get channel "$device" channel
        config_get vifs "$device" vifs
        config_get txpower "$device" txpower
+       config_get country "$device" country
+       config_get distance "$device" distance
+       config_get txantenna "$device" txantenna all
+       config_get rxantenna "$device" rxantenna all
+       config_get frag "$device" frag
+       config_get rts "$device" rts
        find_mac80211_phy "$device" || return 0
        config_get phy "$device" phy
        local i=0
+       local macidx=0
+       local apidx=0
        fixed=""
+       local hostapd_ctrl=""
 
+       [ -n "$country" ] && iw reg set "$country"
        [ "$channel" = "auto" -o "$channel" = "0" ] || {
                fixed=1
        }
 
+       iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
+
+       [ -n "$distance" ] && iw phy "$phy" set distance "$distance"
+       [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
+       [ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
+
        export channel fixed
        # convert channel to frequency
        local freq="$(get_freq "$phy" "${fixed:+$channel}")"
@@ -101,10 +301,8 @@ enable_mac80211() {
                }
                config_set "$vif" ifname "$ifname"
 
-               config_get enc "$vif" encryption
                config_get mode "$vif" mode
                config_get ssid "$vif" ssid
-               config_get_bool wds "$vif" wds 0
 
                # It is far easier to delete and create the desired interface
                case "$mode" in
@@ -114,7 +312,9 @@ enable_mac80211() {
                        ap)
                                # Hostapd will handle recreating the interface and
                                # it's accompanying monitor
-                               iw phy "$phy" interface add "$ifname" type managed
+                               apidx="$(($apidx + 1))"
+                               i=$(($i + 1))
+                               [ "$apidx" -gt 1 ] || iw phy "$phy" interface add "$ifname" type managed
                        ;;
                        mesh)
                                config_get mesh_id "$vif" mesh_id
@@ -125,7 +325,8 @@ enable_mac80211() {
                        ;;
                        sta)
                                local wdsflag
-                               [ "$wds" -gt 0 ] && wdsflag="wds on"
+                               config_get_bool wds "$vif" wds 0
+                               [ "$wds" -gt 0 ] && wdsflag="4addr on"
                                iw phy "$phy" interface add "$ifname" type managed $wdsflag
                                config_get_bool powersave "$vif" powersave 0
                                [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
@@ -134,7 +335,7 @@ enable_mac80211() {
                esac
 
                # All interfaces must have unique mac addresses
-               # which can either be explicitly set in the device 
+               # which can either be explicitly set in the device
                # section, or automatically generated
                config_get macaddr "$device" macaddr
                local mac_1="${macaddr%%:*}"
@@ -142,144 +343,149 @@ enable_mac80211() {
 
                config_get vif_mac "$vif" macaddr
                [ -n "$vif_mac" ] || {
-                       if [ "$i" -gt 0 ]; then 
-                               offset="$(( 2 + $i * 4 ))"
+                       if [ "$macidx" -gt 0 ]; then
+                               offset="$(( 2 + $macidx * 4 ))"
                        else
                                offset="0"
                        fi
-                       vif_mac="$( printf %02x $(($mac_1 + $offset)) ):$mac_2"
+                       vif_mac="$( printf %02x $((0x$mac_1 + $offset)) ):$mac_2"
+                       macidx="$(($macidx + 1))"
                }
-               ifconfig "$ifname" hw ether "$vif_mac"
-
-               # We attempt to set teh channel for all interfaces, although
-               # mac80211 may not support it or the driver might not yet
-               [ -n "$fixed" -a -n "$channel" ] && iw dev "$ifname" set channel "$channel"
+               [ "$mode" = "ap" ] || ifconfig "$ifname" hw ether "$vif_mac"
+               config_set "$vif" macaddr "$vif_mac"
 
-               local key keystring
-
-               # Valid values are:
-               # wpa / wep / none
-               #
                # !! ap !!
                #
                # ALL ap functionality will be passed to hostapd
                #
-               # !! mesh / adhoc / station !!
-               # none -> NO encryption
+               # !! station !!
                #
-               # wep + keymgmt = '' -> we use iw to connect to the
-               # network.  
+               # ALL station functionality will be passed to wpa_supplicant
                #
-               # wep + keymgmt = 'NONE' -> wpa_supplicant will be
-               # configured to handle the wep connection
                if [ ! "$mode" = "ap" ]; then
-                       case "$enc" in
-                               wep)
-                                       config_get keymgmt "$vif" keymgmt
-                                       if [ -e "$keymgmt" ]; then
-                                               for idx in 1 2 3 4; do
-                                                       local zidx
-                                                       zidx = idx - 1
-                                                       config_get key "$vif" "key${idx}"
-                                                       if [ -n "$key" ]; then
-                                                               append keystring "${zidx}:${key} " 
-                                                       fi
-                                               done
-                                       fi
-                               ;;
-                               wpa)
-                                       config_get key "$vif" key
-                               ;;
-                       esac
+                       # We attempt to set the channel for all interfaces, although
+                       # mac80211 may not support it or the driver might not yet
+                       # for ap mode this is handled by hostapd
+                       [ -n "$fixed" -a -n "$channel" ] && iw dev "$ifname" set channel "$channel"
                fi
 
-               # txpower is not yet implemented in iw
                config_get vif_txpower "$vif" txpower
                # use vif_txpower (from wifi-iface) to override txpower (from
                # wifi-device) if the latter doesn't exist
                txpower="${txpower:-$vif_txpower}"
-               [ -z "$txpower" ] || iwconfig "$ifname" txpower "${txpower%%.*}"
+               [ -z "$txpower" ] || iw dev "$ifname" set txpower fixed "${txpower%%.*}00"
+       done
 
-               config_get frag "$vif" frag
-               if [ -n "$frag" ]; then
-                       iw phy "$phy" set frag "${frag%%.*}"
-               fi
+       local start_hostapd=
+       rm -f /var/run/hostapd-$phy.conf
+       for vif in $vifs; do
+               config_get mode "$vif" mode
+               [ "$mode" = "ap" ] || continue
+               mac80211_hostapd_setup_bss "$phy" "$vif"
+               start_hostapd=1
+       done
 
-               config_get rts "$vif" rts
-               if [ -n "$rts" ]; then
-                       iw phy "$phy" set rts "${frag%%.*}"
-               fi
+       [ -n "$start_hostapd" ] && {
+               hostapd -P /var/run/wifi-$phy.pid -B /var/run/hostapd-$phy.conf || {
+                       echo "Failed to start hostapd for $phy"
+                       return
+               }
+               sleep 2
+
+               for vif in $vifs; do
+                       config_get mode "$vif" mode
+                       config_get ifname "$vif" ifname
+                       [ "$mode" = "ap" ] || continue
+                       hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd-$phy/$ifname}"
+                       mac80211_start_vif "$vif" "$ifname"
+               done
+       }
 
+       for vif in $vifs; do
+               config_get mode "$vif" mode
+               config_get ifname "$vif" ifname
+               [ ! "$mode" = "ap" ] || continue
                ifconfig "$ifname" up
 
-               local net_cfg bridge
-               net_cfg="$(find_net_config "$vif")"
-               [ -z "$net_cfg" ] || {
-                       bridge="$(bridge_interface "$net_cfg")"
-                       config_set "$vif" bridge "$bridge"
-                       start_net "$ifname" "$net_cfg"
-               }
+               if [ ! "$mode" = "ap" ]; then
+                       ifconfig "$ifname" up
+                       case "$mode" in
+                               adhoc)
+                                       config_get bssid "$vif" bssid
+                                       config_get ssid "$vif" ssid
+                                       config_get beacon_int "$device" beacon_int
+                                       config_get basic_rate_list "$device" basic_rate
+                                       config_get encryption "$vif" encryption
+                                       config_get key "$vif" key 1
+                                       config_get mcast_rate "$vif" mcast_rate
+
+                                       local keyspec=""
+                                       [ "$encryption" == "wep" ] && {
+                                               case "$key" in
+                                                       [1234])
+                                                               local idx
+                                                               for idx in 1 2 3 4; do
+                                                                       local ikey
+                                                                       config_get ikey "$vif" "key$idx"
+
+                                                                       [ -n "$ikey" ] && {
+                                                                               ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
+                                                                               [ $idx -eq $key ] && ikey="d:$ikey"
+                                                                               append keyspec "$ikey"
+                                                                       }
+                                                               done
+                                                       ;;
+                                                       *) append keyspec "d:0:$(prepare_key_wep "$key")" ;;
+                                               esac
+                                       }
 
-               set_wifi_up "$vif" "$ifname"
-               case "$mode" in
-                       ap)
-                               if eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
-                                       hostapd_setup_vif "$vif" nl80211 || {
-                                               echo "enable_mac80211($device): Failed to set up wpa for interface $ifname" >&2
-                                               # make sure this wifi interface won't accidentally stay open without encryption
-                                               ifconfig "$ifname" down
-                                               continue
+                                       local br brval brsub brstr
+                                       [ -n "$basic_rate_list" ] && {
+                                               for br in $basic_rate_list; do
+                                                       brval="$(($br / 1000))"
+                                                       brsub="$((($br / 100) % 10))"
+                                                       [ "$brsub" -gt 0 ] && brval="$brval.$brsub"
+                                                       [ -n "$brstr" ] && brstr="$brstr,"
+                                                       brstr="$brstr$brval"
+                                               done
                                        }
-                               fi
-                       ;;
-                       adhoc)
-                               config_get bssid "$vif" bssid
-                               iw dev "$ifname" ibss join "$ssid" $freq ${fixed:+fixed-freq} $bssid
-                       ;;
-                       sta|mesh)
-                               config_get bssid "$vif" bssid
-                               case "$enc" in                                                                                           
-                                       wep)
-                                               if [ -e "$keymgmt" ]; then
-                                                       [ -n "$keystring" ] &&
-                                                               iw dev "$ifname" connect "$ssid" ${fixed:+$freq} $bssid key "$keystring"
-                                               else
-                                                       if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
-                                                               wpa_supplicant_setup_vif "$vif" wext || {
-                                                                       echo "enable_mac80211($device): Failed to set up wpa_supplicant for interface $ifname" >&2
-                                                                       # make sure this wifi interface won't accidentally stay open without encryption
-                                                                       ifconfig "$ifname" down
-                                                                       continue
-                                                               }
-                                                       fi
-                                               fi
-                                       ;;
-                                       wpa*|psk*)
-                                               config_get key "$vif" key
-                                               if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
-                                                       wpa_supplicant_setup_vif "$vif" wext || {
-                                                               echo "enable_mac80211($device): Failed to set up wpa_supplicant for interface $ifname" >&2
-                                                               # make sure this wifi interface won't accidentally stay open without encryption
-                                                               ifconfig "$ifname" down
-                                                               continue
-                                                       }
-                                               fi
-                                       ;;
-                                       *)
-                                               iw dev "$ifname" connect "$ssid" ${fixed:+$freq} $bssid
-                                       ;;
-                               esac
 
-                       ;;
-               esac
+                                       local mcval=""
+                                       [ -n "$mcast_rate" ] && {
+                                               mcval="$(($mcast_rate / 1000))"
+                                               mcsub="$(( ($mcast_rate / 100) % 10 ))"
+                                               [ "$mcsub" -gt 0 ] && mcval="$mcval.$mcsub"
+                                       }
+
+                                       iw dev "$ifname" ibss join "$ssid" $freq \
+                                               ${fixed:+fixed-freq} $bssid \
+                                               ${beacon_int:+beacon-interval $beacon_int} \
+                                               ${brstr:+basic-rates $brstr} \
+                                               ${mcval:+mcast-rate $mcval} \
+                                               ${keyspec:+keys $keyspec}
+                               ;;
+                               sta)
+                                       if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
+                                               wpa_supplicant_setup_vif "$vif" nl80211 "${hostapd_ctrl:+-H $hostapd_ctrl}" || {
+                                                       echo "enable_mac80211($device): Failed to set up wpa_supplicant for interface $ifname" >&2
+                                                       # make sure this wifi interface won't accidentally stay open without encryption
+                                                       ifconfig "$ifname" down
+                                                       continue
+                                               }
+                                       fi
+                               ;;
+                       esac
+                       mac80211_start_vif "$vif" "$ifname"
+               fi
        done
+
 }
 
 
-check_device() {
+check_mac80211_device() {
        config_get phy "$1" phy
        [ -z "$phy" ] && {
-               find_mac80211_phy "$1" || return 0
+               find_mac80211_phy "$1" >/dev/null || return 0
                config_get phy "$1" phy
        }
        [ "$phy" = "$dev" ] && found=1
@@ -288,53 +494,60 @@ check_device() {
 detect_mac80211() {
        devidx=0
        config_load wireless
+       while :; do
+               config_get type "radio$devidx" type
+               [ -n "$type" ] || break
+               devidx=$(($devidx + 1))
+       done
        for dev in $(ls /sys/class/ieee80211); do
                found=0
-               config_foreach check_device wifi-device
+               config_foreach check_mac80211_device wifi-device
                [ "$found" -gt 0 ] && continue
 
-               while :; do 
-                       config_get type "wifi$devidx" type
-                       [ -n "$type" ] || break
-                       devidx=$(($devidx + 1))
-               done
                mode_11n=""
                mode_band="g"
-               channel="5"
+               channel="11"
                ht_cap=0
-               for cap in $(iw phy "$dev" info | grep 'HT capabilities' | cut -d: -f2); do
+               for cap in $(iw phy "$dev" info | grep 'Capabilities:' | cut -d: -f2); do
                        ht_cap="$(($ht_cap | $cap))"
                done
                ht_capab="";
                [ "$ht_cap" -gt 0 ] && {
                        mode_11n="n"
+                       append ht_capab "       option htmode   HT20" "$N"
+
                        list="  list ht_capab"
                        [ "$(($ht_cap & 1))" -eq 1 ] && append ht_capab "$list  LDPC" "$N"
-                       [ "$(($ht_cap & 2))" -eq 2 ] && append ht_capab "$list  HT40-" "$N"
+                       [ "$(($ht_cap & 16))" -eq 16 ] && append ht_capab "$list        GF" "$N"
                        [ "$(($ht_cap & 32))" -eq 32 ] && append ht_capab "$list        SHORT-GI-20" "$N"
                        [ "$(($ht_cap & 64))" -eq 64 ] && append ht_capab "$list        SHORT-GI-40" "$N"
+                       [ "$(($ht_cap & 128))" -eq 128 ] && append ht_capab "$list      TX-STBC" "$N"
+                       [ "$(($ht_cap & 768))" -eq 256 ] && append ht_capab "$list      RX-STBC1" "$N"
+                       [ "$(($ht_cap & 768))" -eq 512 ] && append ht_capab "$list      RX-STBC12" "$N"
+                       [ "$(($ht_cap & 768))" -eq 768 ] && append ht_capab "$list      RX-STBC123" "$N"
                        [ "$(($ht_cap & 4096))" -eq 4096 ] && append ht_capab "$list    DSSS_CCK-40" "$N"
                }
                iw phy "$dev" info | grep -q '2412 MHz' || { mode_band="a"; channel="36"; }
 
                cat <<EOF
-config wifi-device  wifi$devidx
+config wifi-device  radio$devidx
        option type     mac80211
        option channel  ${channel}
        option macaddr  $(cat /sys/class/ieee80211/${dev}/macaddress)
        option hwmode   11${mode_11n}${mode_band}
+$ht_capab
        # REMOVE THIS LINE TO ENABLE WIFI:
        option disabled 1
-$ht_capab
 
 config wifi-iface
-       option device   wifi$devidx
+       option device   radio$devidx
        option network  lan
        option mode     ap
        option ssid     OpenWrt
        option encryption none
 
 EOF
+       devidx=$(($devidx + 1))
        done
 }