#!/bin/sh
append DRIVERS "mac80211"
+find_mac80211_phy() {
+ config_get 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="$1"
- local adhoc sta ap
+ local adhoc sta ap monitor mesh
config_get vifs "$device" vifs
for vif in $vifs; do
-
- config_get ifname "$vif" ifname
- config_set "$vif" ifname "${ifname:-$device}"
-
config_get mode "$vif" mode
case "$mode" in
adhoc|sta|ap|monitor|mesh)
esac
done
- config_set "$device" vifs "${ap:+$ap }${adhoc:+$adhoc }${ahdemo:+$ahdemo }${sta:+$sta }${wds:+$wds }${monitor:+$monitor }${mesh:+$mesh}"
+ 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
done
include /lib/network
- cd /proc/sys/net
- for dev in *; do
- grep "$device" "$dev/%parent" >/dev/null 2>/dev/null && {
- ifconfig "$dev" down
- unbridge "$dev"
- }
+ for wdev in $(ls /sys/class/ieee80211/${phy}/device/net 2>/dev/null); do
+ 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 "$device" country
+ find_mac80211_phy "$device" || return 0
+ config_get phy "$device" phy
+ local i=0
+ fixed=""
+
+ [ -n "$country" ] && iw reg set "$country"
+ [ "$channel" = "auto" -o "$channel" = "0" ] || {
+ fixed=1
+ }
- local first=1
- local mesh_idx=0
+ export channel fixed
+ # convert channel to frequency
+ local freq="$(get_freq "$phy" "${fixed:+$channel}")"
+
+ wifi_fixup_hwmode "$device" "g"
for vif in $vifs; do
- ifconfig "$ifname" down 2>/dev/null
- config_get ifname "$vif" ifname
- config_get enc "$vif" encryption
- config_get eap_type "$vif" eap_type
- config_get mode "$vif" mode
+ while [ -d "/sys/class/net/wlan$i" ]; do
+ i=$(($i + 1))
+ done
config_get ifname "$vif" ifname
- [ $? -ne 0 ] && {
- echo "enable_mac80211($device): Failed to set up $mode vif $ifname" >&2
- continue
+ [ -n "$ifname" ] || {
+ ifname="wlan$i"
}
config_set "$vif" ifname "$ifname"
- [ "$first" = 1 ] && {
- # only need to change freq band and channel on the first vif
- iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
- if [ "$mode" = adhoc ]; then
- iwlist "$ifname" scan >/dev/null 2>/dev/null
- sleep 1
- iwconfig "$ifname" mode ad-hoc >/dev/null 2>/dev/null
- fi
- # mesh interface should be created only for the first interface
- if [ "$mode" = mesh ]; then
- config_get mesh_id "$vif" mesh_id
- if [ -n "$mesh_id" ]; then
- iw dev "$ifname" interface add msh$mesh_idx type mp mesh_id $mesh_id
- fi
- fi
- sleep 1
- iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
- }
- if [ "$mode" = sta ]; then
- iwconfig "$ifname" mode managed >/dev/null 2>/dev/null
- else
- iwconfig "$ifname" mode $mode >/dev/null 2>/dev/null
- fi
-
- wpa=
- case "$enc" in
- WEP|wep)
- for idx in 1 2 3 4; do
- config_get key "$vif" "key${idx}"
- iwconfig "$ifname" enc "[$idx]" "${key:-off}"
- done
- config_get key "$vif" key
- key="${key:-1}"
- case "$key" in
- [1234]) iwconfig "$ifname" enc "[$key]";;
- *) iwconfig "$ifname" enc "$key";;
- esac
- ;;
- PSK|psk|PSK2|psk2)
- config_get key "$vif" key
- ;;
- esac
+ config_get enc "$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
adhoc)
- config_get addr "$vif" bssid
- [ -z "$addr" ] || {
- iwconfig "$ifname" ap "$addr"
- }
+ iw phy "$phy" interface add "$ifname" type adhoc
+ ;;
+ ap)
+ # Hostapd will handle recreating the interface and
+ # it's accompanying monitor
+ 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
+ [ "$wds" -gt 0 ] && wdsflag="4addr on"
+ iw phy "$phy" interface add "$ifname" type managed $wdsflag
+ config_get_bool powersave "$vif" powersave 0
+ [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
+ iwconfig "$ifname" power "$powersave"
;;
esac
- config_get ssid "$vif" ssid
+ # 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 "$vif_mac" ] || {
+ if [ "$i" -gt 0 ]; then
+ offset="$(( 2 + $i * 4 ))"
+ else
+ offset="0"
+ fi
+ vif_mac="$( printf %02x $(($mac_1 + $offset)) ):$mac_2"
+ }
+ 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"
+
+ local key keystring
+
+ # Valid values are:
+ # wpa / wep / none
+ #
+ # !! ap !!
+ #
+ # ALL ap functionality will be passed to hostapd
+ #
+ # !! mesh / adhoc / station !!
+ # none -> NO encryption
+ #
+ # wep + keymgmt = '' -> we use iw to connect to the
+ # network.
+ #
+ # wep + keymgmt = 'NONE' -> wpa_supplicant will be
+ # configured to handle the wep connection
+ if [ ! "$mode" = "ap" ]; then
+ case "$enc" in
+ wep)
+ config_get keymgmt "$vif" keymgmt
+ if [ -n "$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}:${key} "
+ fi
+ done
+ fi
+ ;;
+ *wpa*|*psk*)
+ config_get key "$vif" key
+ ;;
+ esac
+ fi
+
+ # txpower is not yet implemented in iw
config_get vif_txpower "$vif" txpower
# use vif_txpower (from wifi-iface) to override txpower (from
# wifi-device) if the latter doesn't exist
config_get frag "$vif" frag
if [ -n "$frag" ]; then
- iwconfig "$ifname" frag "${frag%%.*}"
+ iw phy "$phy" set frag "${frag%%.*}"
fi
config_get rts "$vif" rts
if [ -n "$rts" ]; then
- iwconfig "$ifname" rts "${rts%%.*}"
+ iw phy "$phy" set rts "${rts%%.*}"
fi
ifconfig "$ifname" up
- iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
local net_cfg bridge
net_cfg="$(find_net_config "$vif")"
config_set "$vif" bridge "$bridge"
start_net "$ifname" "$net_cfg"
}
- iwconfig "$ifname" essid "$ssid"
+
set_wifi_up "$vif" "$ifname"
case "$mode" in
ap)
}
fi
;;
- sta)
- if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
- wpa_supplicant_setup_vif "$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
+ adhoc)
+ config_get bssid "$vif" bssid
+ iw dev "$ifname" ibss join "$ssid" $freq ${fixed:+fixed-freq} $bssid
;;
- mesh)
- # special case where physical interface should be down for mesh to work
- ifconfig "$ifname" down
- ifconfig "msh$mesh_idx" up
+ sta|mesh)
+ config_get bssid "$vif" bssid
+ case "$enc" in
+ wep)
+ if [ -n "$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} $bssid
+ ;;
+ esac
+
;;
esac
- first=0
- mesh_idx=$(expr $mesh_idx + 1)
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() {
- cd /sys/class/net
- for dev in $(ls -d wlan* 2>&-); do
- config_get type "$dev" type
- [ "$type" = mac80211 ] && return
+ devidx=0
+ config_load wireless
+ while :; do
+ config_get type "radio$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="5"
+ ht_cap=0
+ for cap in $(iw phy "$dev" info | grep 'HT capabilities' | cut -d: -f2); do
+ ht_cap="$(($ht_cap | $cap))"
+ done
+ ht_capab="";
+ [ "$ht_cap" -gt 0 ] && {
+ mode_11n="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 & 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 & 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 $dev
+config wifi-device radio$devidx
option type mac80211
- option channel 5
-
+ option channel ${channel}
+ option macaddr $(cat /sys/class/ieee80211/${dev}/macaddress)
+ option hwmode 11${mode_11n}${mode_band}
# REMOVE THIS LINE TO ENABLE WIFI:
option disabled 1
+$ht_capab
config wifi-iface
- option device $dev
- option network lan
- option mode ap
- option ssid OpenWrt
+ option device radio$devidx
+ option network lan
+ option mode ap
+ option ssid OpenWrt
option encryption none
+
EOF
+ devidx=$(($devidx + 1))
done
}
+
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