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|
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 "$vif" wpa_group_rekey
config_get_bool ap_isolate "$vif" isolate 0
config_get device "$vif" device
config_get hwmode "$device" hwmode
if [ "$ap_isolate" -gt 0 ]; then
append "$var" "ap_isolate=$ap_isolate" "$N"
fi
# Examples:
# psk-mixed/tkip => WPA1+2 PSK, TKIP
# wpa-psk2/tkip+aes => WPA2 PSK, CCMP+TKIP
# wpa2/tkip+aes => WPA2 RADIUS, CCMP+TKIP
# ...
# TODO: move this parsing function somewhere generic, so that
# later it can be reused by drivers that don't use hostapd
# crypto defaults: WPA2 vs WPA1
case "$enc" in
wpa2*|*psk2*)
wpa=2
crypto="CCMP"
;;
*mixed*)
wpa=3
crypto="CCMP TKIP"
;;
*)
wpa=1
crypto="TKIP"
;;
esac
# explicit override for crypto setting
case "$enc" in
*tkip+aes|*tkip+ccmp|*aes+tkip|*ccmp+tkip) crypto="CCMP TKIP";;
*aes|*ccmp) crypto="CCMP";;
*tkip) crypto="TKIP";;
esac
# enforce CCMP for 11ng and 11na
case "$hwmode" in
*ng|*na) crypto="CCMP";;
esac
# use crypto/auth settings for building the hostapd config
case "$enc" in
*psk*)
config_get psk "$vif" key
if [ ${#psk} -eq 64 ]; then
append "$var" "wpa_psk=$psk" "$N"
else
append "$var" "wpa_passphrase=$psk" "$N"
fi
;;
*wpa*)
# required fields? formats?
# hostapd is particular, maybe a default configuration for failures
config_get server "$vif" server
append "$var" "auth_server_addr=$server" "$N"
config_get port "$vif" port
port=${port:-1812}
append "$var" "auth_server_port=$port" "$N"
config_get secret "$vif" key
append "$var" "auth_server_shared_secret=$secret" "$N"
config_get nasid "$vif" nasid
append "$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"
;;
*wep*)
config_get key "$vif" key
key="${key:-1}"
case "$key" in
[1234])
for idx in 1 2 3 4; do
local zidx
zidx=$(($idx - 1))
config_get ckey "$vif" "key${idx}"
[ -n "$ckey" ] && \
append "$var" "wep_key${zidx}=$(prepare_key_wep "$ckey")" "$N"
done
append "$var" "wep_default_key=$((key - 1))" "$N"
;;
*)
append "$var" "wep_key0=$(prepare_key_wep "$key")" "$N"
append "$var" "wep_default_key=0" "$N"
;;
esac
wpa=0
crypto=
;;
*)
wpa=0
crypto=
;;
esac
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" "$N"
[ "$wpa" -ge "2" ] && config_get ieee80211w "$vif" ieee80211w
case "$ieee80211w" in
[012])
append "$var" "ieee80211w=$ieee80211w" "$N"
[ "$ieee80211w" -gt "0" ] && {
config_get ieee80211w_max_timeout "$vif" ieee80211w_max_timeout
config_get ieee80211w_retry_timeout "$vif" ieee80211w_retry_timeout
[ -n "$ieee80211w_max_timeout" ] && \
append "$var" "assoc_sa_query_max_timeout=$ieee80211w_max_timeout" "$N"
[ -n "$ieee80211w_retry_timeout" ] && \
append "$var" "assoc_sa_query_retry_timeout=$ieee80211w_retry_timeout" "$N"
}
;;
esac
}
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
case "$hwmode" in
*bg|*gdt|*gst|*fh) hwmode=g;;
*adt|*ast) hwmode=a;;
esac
[ "$channel" = auto ] && channel=
[ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
cat > /var/run/hostapd-$ifname.conf <<EOF
ctrl_interface=/var/run/hostapd-$ifname
driver=$driver
interface=$ifname
${hwmode:+hw_mode=${hwmode#11}}
${channel:+channel=$channel}
$hostapd_cfg
EOF
hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf
}
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