From ba7bfddaaed9bc067199b1e3208b1c634ebc7b5f Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 20 Jan 2010 02:26:05 +0000
Subject: mac80211: restructure /lib/wifi/mac80211.sh use the new multi-bss
single instance hostapd mode move mac80211 specific bits out of
/lib/wifi/hostapd.sh add a new option 'htmode' for switching between HT20 and
HT40+,HT40-
SVN-Revision: 19235
---
package/mac80211/files/lib/wifi/mac80211.sh | 195 +++++++++++++++++++++++-----
1 file changed, 164 insertions(+), 31 deletions(-)
(limited to 'package/mac80211/files/lib/wifi')
diff --git a/package/mac80211/files/lib/wifi/mac80211.sh b/package/mac80211/files/lib/wifi/mac80211.sh
index dea57223bc..b3072b79b3 100644
--- a/package/mac80211/files/lib/wifi/mac80211.sh
+++ b/package/mac80211/files/lib/wifi/mac80211.sh
@@ -1,8 +1,129 @@
#!/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
+ [ -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_enabled=1
+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}
+$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
+$hostapd_cfg
+bssid=$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() {
- config_get device "$1"
+ local device="$1"
local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
config_get phy "$device" phy
@@ -53,7 +174,7 @@ disable_mac80211() (
# 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/$pid/cmdline >/dev/null && \
+ grep "$phy" /proc/$pid/cmdline >/dev/null && \
kill $pid
done
@@ -82,6 +203,7 @@ enable_mac80211() {
config_get phy "$device" phy
local i=0
local macidx=0
+ local apidx=0
fixed=""
[ -n "$country" ] && iw reg set "$country"
@@ -110,7 +232,6 @@ enable_mac80211() {
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 "$mode" in
@@ -120,7 +241,8 @@ enable_mac80211() {
ap)
# Hostapd will handle recreating the interface and
# it's accompanying monitor
- iw phy "$phy" interface add "$ifname" type managed
+ apidx="$(($apidx + 1))"
+ [ "$apidx" -gt 1 ] || iw phy "$phy" interface add "$ifname" type managed
;;
mesh)
config_get mesh_id "$vif" mesh_id
@@ -131,6 +253,7 @@ enable_mac80211() {
;;
sta)
local wdsflag
+ config_get_bool wds "$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
@@ -156,13 +279,8 @@ enable_mac80211() {
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"
-
- local key keystring
+ [ "$mode" = "ap" ] || ifconfig "$ifname" hw ether "$vif_mac"
+ config_set "$vif" macaddr "$vif_mac"
# Valid values are:
# wpa / wep / none
@@ -180,6 +298,13 @@ enable_mac80211() {
# wep + keymgmt = 'NONE' -> wpa_supplicant will be
# configured to handle the wep connection
if [ ! "$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
+ [ -n "$fixed" -a -n "$channel" ] && iw dev "$ifname" set channel "$channel"
+
+ local key keystring
+
case "$enc" in
*wep*)
config_get keymgmt "$vif" keymgmt
@@ -229,26 +354,9 @@ enable_mac80211() {
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"
- }
+ [ "$mode" = "ap" ] || mac80211_start_vif "$vif" "$ifname"
- set_wifi_up "$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
- }
- fi
- ;;
adhoc)
config_get bssid "$vif" bssid
iw dev "$ifname" ibss join "$ssid" $freq ${fixed:+fixed-freq} $bssid
@@ -290,6 +398,30 @@ enable_mac80211() {
;;
esac
done
+
+ local start_hostapd=
+ rm -f /var/run/hostapd-$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" ] || return
+
+ 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
}
@@ -325,9 +457,10 @@ detect_mac80211() {
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 & 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"
@@ -340,9 +473,9 @@ config wifi-device radio$devidx
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 radio$devidx
--
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