-#!/bin/sh
-append DRIVERS "mac80211"
-
-mac80211_hostapd_setup_base() {
- local phy="$1"
- local ifname="$2"
-
- cfgfile="/var/run/hostapd-$phy.conf"
- config_get device "$vif" device
- config_get country "$device" country
- config_get hwmode "$device" hwmode
- config_get channel "$device" channel
- 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"
- }
- }
- 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}
-${country:+country_code=$country}
-${noscan:+noscan=$noscan}
-$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" "$N"
-
- config_get macaddr "$vif" macaddr
- config_get_bool hidden "$vif" hidden 0
- cat >> /var/run/hostapd-$phy.conf <<EOF
-$hostapd_cfg
-wmm_enabled=1
-bssid=$macaddr
-ignore_broadcast_ssid=$hidden
-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() {
- local device="$1"
-
- local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
- config_get phy "$device" phy
- [ -z "$phy" -a -n "$macaddr" ] && {
- for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
- [ "$macaddr" = "$(cat /sys/class/ieee80211/${phy}/macaddress)" ] || continue
- config_set "$device" phy "$phy"
- break
- done
- config_get phy "$device" phy
- }
- [ -n "$phy" -a -d "/sys/class/ieee80211/$phy" ] || {
- echo "PHY for wifi device $1 not found"
- return 1
- }
- [ -z "$macaddr" ] && {
- config_set "$device" macaddr "$(cat /sys/class/ieee80211/${phy}/macaddress)"
- }
- return 0
-}
-
-scan_mac80211() {
- local device="$1"
- local adhoc sta ap monitor mesh
-
- config_get vifs "$device" vifs
- for vif in $vifs; do
- config_get mode "$vif" mode
- case "$mode" in
- adhoc|sta|ap|monitor|mesh)
- append $mode "$vif"
- ;;
- *) echo "$device($vif): Invalid mode, ignored."; continue;;
- esac
- done
-
- config_set "$device" vifs "${ap:+$ap }${adhoc:+$adhoc }${sta:+$sta }${monitor:+$monitor }${mesh:+$mesh}"
-}
-
-
-disable_mac80211() (
- local device="$1"
-
- find_mac80211_phy "$device" || return 0
- config_get phy "$device" phy
-
- set_wifi_down "$device"
- # kill all running hostapd and wpa_supplicant processes that
- # are running on atheros/mac80211 vifs
- 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
- [ -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
- done
-
- return 0
-)
-get_freq() {
- local phy="$1"
- local chan="$2"
-
- iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
-}
-
-enable_mac80211() {
- local device="$1"
- config_get channel "$device" channel
- config_get vifs "$device" vifs
- config_get txpower "$device" txpower
- config_get country "$device" country
- config_get distance "$device" distance
- find_mac80211_phy "$device" || return 0
- config_get phy "$device" phy
- local i=0
- local macidx=0
- local apidx=0
- fixed=""
-
- [ -n "$country" ] && iw reg set "$country"
- [ "$channel" = "auto" -o "$channel" = "0" ] || {
- fixed=1
- }
-
- [ -n "$distance" ] && iw phy "$phy" set distance "$distance"
-
- export channel fixed
- # convert channel to frequency
- local freq="$(get_freq "$phy" "${fixed:+$channel}")"
-
- wifi_fixup_hwmode "$device" "g"
- for vif in $vifs; do
- while [ -d "/sys/class/net/wlan$i" ]; do
- i=$(($i + 1))
- done
-
- config_get ifname "$device" ifname
- [ -n "$ifname" ] || {
- ifname="wlan0"
- }
- config_set "$vif" ifname "$ifname"
-
- config_get mode "$vif" mode
- config_get ssid "$vif" ssid
-
- # It is far easier to delete and create the desired interface
- case "$mode" in
- adhoc)
- iw phy "$phy" interface add "$ifname" type adhoc
- ;;
- ap)
- # Hostapd will handle recreating the interface and
- # it's accompanying monitor
- apidx="$(($apidx + 1))"
- i=$(($i + 1))
- [ "$apidx" -gt 1 ] || iw phy "$phy" interface add "$ifname" type managed
- ;;
- mesh)
- config_get mesh_id "$vif" mesh_id
- iw phy "$phy" interface add "$ifname" type mp mesh_id "$mesh_id"
- ;;
- monitor)
- iw phy "$phy" interface add "$ifname" type monitor
- ;;
- sta)
- local wdsflag
- config_get_bool wds "$vif" wds 0
- ;;
- esac
-
- # All interfaces must have unique mac addresses
- # which can either be explicitly set in the device
- # section, or automatically generated
- config_get macaddr "$device" macaddr
- local mac_1="${macaddr%%:*}"
- local mac_2="${macaddr#*:}"
-
- config_get vif_mac "$vif" macaddr
- [ -n "$vif_mac" ] || {
- if [ "$macidx" -gt 0 ]; then
- offset="$(( 2 + $macidx * 4 ))"
- else
- offset="0"
- fi
- vif_mac="$( printf %02x $((0x$mac_1 + $offset)) ):$mac_2"
- macidx="$(($macidx + 1))"
- }
- [ "$mode" = "ap" ] || ifconfig "$ifname" hw ether "$vif_mac"
- config_set "$vif" macaddr "$vif_mac"
-
- # !! ap !!
- #
- # ALL ap functionality will be passed to hostapd
- #
- # !! station !!
- #
- # ALL station functionality will be passed to wpa_supplicant
- #
- #if [ ! "$mode" = "ap" ]; then
- # 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
- # echo "iw dev set channel"
- # [ -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%%.*}"
-
- done
-
- 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" "$vif"
- start_hostapd=1
- done
-
- [ -n "$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
- 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 "$ifname" up
-
- if [ ! "$mode" = "ap" ]; then
- ifconfig "$ifname" up
- case "$mode" in
- adhoc)
- config_get bssid "$vif" bssid
- config_get ssid "$vif" ssid
- iw dev "$ifname" ibss join "$ssid" $freq ${fixed:+fixed-freq} $bssid
- ;;
- sta)
- if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
- wpa_supplicant_setup_vif "$vif" mac80211 || {
- 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() {
- config_get phy "$1" phy
- [ -z "$phy" ] && {
- find_mac80211_phy "$1" >/dev/null || return 0
- config_get phy "$1" phy
- }
- [ "$phy" = "$dev" ] && found=1
-}
-
-detect_mac80211() {
- devidx=0
- config_load wireless
- while :; do
- config_get type "radio$devidx" type
- [ -n "$type" ] || break
- devidx=$(($devidx + 1))
- done
- for dev in $(ls /sys/class/ieee80211); do
- found=0
- config_foreach check_device wifi-device
- [ "$found" -gt 0 ] && continue
-
- mode_11n=""
- mode_band="g"
- channel="6"
- ht_cap=0
- 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" "$N"
- [ "$(($ht_cap & 32))" -eq 32 ] && append ht_capab "$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 radio$devidx
- option type mac80211
- option channel ${channel}
- option macaddr $(cat /sys/class/net/wlan0/address)
- option phy phy0
- option hwmode 11${mode_11n}${mode_band}
- option vifs radio0
- option ifname wlan0
-$ht_capab
- # REMOVE THIS LINE TO ENABLE WIFI:
- option disabled 1
-
-config wifi-iface
- option device radio$devidx
- option network lan
- option mode sta
- option ssid OpenWrt
- option encryption none
-
-EOF
- devidx=$(($devidx + 1))
- done
-}
-
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