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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-

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SVN-Revision: 19235
This commit is contained in:
Felix Fietkau 2010-01-20 02:26:05 +00:00
parent c61daab867
commit ba7bfddaae
2 changed files with 209 additions and 128 deletions
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142
package/hostapd/files/hostapd.sh
View file

@ -1,7 +1,10 @@
hostapd_setup_vif() {
local vif="$1"
local driver="$2"
local hostapd_cfg=
hostapd_set_bss_options() {
local var="$1"
local vif="$2"
local enc wpa_group_rekey
config_get enc "$vif" encryption
config_get wpa_group_rekey "$vif" wpa_group_rekey
# Examples:
# psk-mixed/tkip => WPA1+2 PSK, TKIP
@ -14,7 +17,7 @@ hostapd_setup_vif() {
# crypto defaults: WPA2 vs WPA1
case "$enc" in
wpa2*|WPA2*|*PSK2*|*psk2*)
wpa2*|*psk2*)
wpa=2
crypto="CCMP"
;;
@ -30,137 +33,82 @@ hostapd_setup_vif() {
# explicit override for crypto setting
case "$enc" in
*tkip+aes|*TKIP+AES|*tkip+ccmp|*TKIP+CCMP) crypto="CCMP TKIP";;
*tkip|*TKIP) crypto="TKIP";;
*aes|*AES|*ccmp|*CCMP) crypto="CCMP";;
*tkip+aes|*tkip+ccmp) crypto="CCMP TKIP";;
*aes|*ccmp) crypto="CCMP";;
*tkip) crypto="TKIP";;
esac
# use crypto/auth settings for building the hostapd config
case "$enc" in
*psk*|*PSK*)
*psk*)
config_get psk "$vif" key
if [ ${#psk} -eq 64 ]; then
append hostapd_cfg "wpa_psk=$psk" "$N"
append "$var" "wpa_psk=$psk" "$N"
else
append hostapd_cfg "wpa_passphrase=$psk" "$N"
append "$var" "wpa_passphrase=$psk" "$N"
fi
;;
*wpa*|*WPA*)
*wpa*)
# required fields? formats?
# hostapd is particular, maybe a default configuration for failures
config_get server "$vif" server
append hostapd_cfg "auth_server_addr=$server" "$N"
append "$var" "auth_server_addr=$server" "$N"
config_get port "$vif" port
port=${port:-1812}
append hostapd_cfg "auth_server_port=$port" "$N"
append "$var" "auth_server_port=$port" "$N"
config_get secret "$vif" key
append hostapd_cfg "auth_server_shared_secret=$secret" "$N"
append "$var" "auth_server_shared_secret=$secret" "$N"
config_get nasid "$vif" nasid
append hostapd_cfg "nas_identifier=$nasid" "$N"
append hostapd_cfg "eapol_key_index_workaround=1" "$N"
append hostapd_cfg "radius_acct_interim_interval=300" "$N"
append hostapd_cfg "ieee8021x=1" "$N"
append hostapd_cfg "auth_algs=1" "$N"
append hostapd_cfg "wpa_key_mgmt=WPA-EAP" "$N"
append hostapd_cfg "wpa_group_rekey=300" "$N"
append hostapd_cfg "wpa_gmk_rekey=640" "$N"
append "$var" "nas_identifier=$nasid" "$N"
append "$var" "eapol_key_index_workaround=1" "$N"
append "$var" "radius_acct_interim_interval=300" "$N"
append "$var" "ieee8021x=1" "$N"
append "$var" "auth_algs=1" "$N"
append "$var" "wpa_key_mgmt=WPA-EAP" "$N"
append "$var" "wpa_group_rekey=300" "$N"
append "$var" "wpa_gmk_rekey=640" "$N"
;;
*)
wpa=0
crypto=
;;
esac
config_get ifname "$vif" ifname
config_get bridge "$vif" bridge
append "$var" "wpa=$wpa" "$N"
[ -n "$crypto" ] && append "$var" "wpa_pairwise=$crypto" "$N"
[ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
config_get ssid "$vif" ssid
config_get bridge "$vif" bridge
config_get ieee80211d "$vif" ieee80211d
append "$var" "ssid=$ssid" "$N"
[ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N"
[ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N"
}
hostapd_setup_vif() {
local vif="$1"
local driver="$2"
hostapd_cfg=
hostapd_set_bss_options hostapd_cfg "$vif"
config_get ifname "$vif" ifname
config_get device "$vif" device
config_get channel "$device" channel
config_get hwmode "$device" hwmode
config_get wpa_group_rekey "$vif" wpa_group_rekey
config_get ieee80211d "$vif" ieee80211d
config_get_bool hidden "$vif" hidden 0
config_get_bool wds "$vif" wds 0
[ "$wds" -gt 0 -a "$driver" = "nl80211" ] && wds="wds_sta=1" || wds=""
case "$hwmode" in
bg) hwmode=g;;
esac
config_get country "$device" country
[ "$channel" = auto ] && channel=
[ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
[ -n "$hwmode" ] && {
config_get hwmode_11n "$device" hwmode_11n
[ -n "$hwmode_11n" ] && {
hwmode="$hwmode_11n"
config_get ht_capab "$device" ht_capab
[ -n "$ht_capab" -a -n "${ht_capab%%\[*}" ] && {
ht_capab=`echo "[$ht_capab]" | sed -e 's, ,][,g'`
}
}
}
cat > /var/run/hostapd-$ifname.conf <<EOF
ctrl_interface=/var/run/hostapd-$ifname
driver=$driver
interface=$ifname
${hwmode:+hw_mode=$hwmode}
${channel:+channel=$channel}
${bridge:+bridge=$bridge}
ssid=$ssid
wpa=$wpa
${crypto:+wpa_pairwise=$crypto}
${country:+country_code=$country}
${hwmode_11n:+ieee80211n=1}
${ht_capab:+ht_capab=$ht_capab}
${wpa_group_rekey:+wpa_group_rekey=$wpa_group_rekey}
${ieee80211d:+ieee80211d=$ieee80211d}
$wds
$hostapd_cfg
EOF
case "$driver" in
madwifi)
;;
*)
cat >> /var/run/hostapd-$ifname.conf <<EOF
ignore_broadcast_ssid=$hidden
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
EOF
;;
esac
hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf
}

195
package/mac80211/files/lib/wifi/mac80211.sh
View file

@ -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