hostapd_setup_vif() { local vif="$1" local driver="$2" local hostapd_cfg= # Examples: # psk-mixed/tkip => WPA1+2 PSK, TKIP # wpa-psk2/tkip+aes => WPA2 PSK, CCMP+TKIP # wpa2/tkip+aes => WPA2 RADIUS, CCMP+TKIP # ... # TODO: move this parsing function somewhere generic, so that # later it can be reused by drivers that don't use hostapd # crypto defaults: WPA2 vs WPA1 case "$enc" in wpa2*|WPA2*|*PSK2*|*psk2*) wpa=2 crypto="CCMP" ;; *mixed*) wpa=3 crypto="CCMP TKIP" ;; *) wpa=1 crypto="TKIP" ;; esac # explicit override for crypto setting case "$enc" in *tkip+aes|*TKIP+AES|*tkip+ccmp|*TKIP+CCMP) crypto="CCMP TKIP";; *tkip|*TKIP) crypto="TKIP";; *aes|*AES|*ccmp|*CCMP) crypto="CCMP";; esac # use crypto/auth settings for building the hostapd config case "$enc" in *psk*|*PSK*) config_get psk "$vif" key if [ ${#psk} -eq 64 ]; then append hostapd_cfg "wpa_psk=$psk" "$N" else append hostapd_cfg "wpa_passphrase=$psk" "$N" fi ;; *wpa*|*WPA*) # required fields? formats? # hostapd is particular, maybe a default configuration for failures config_get server "$vif" server append hostapd_cfg "auth_server_addr=$server" "$N" config_get port "$vif" port port=${port:-1812} append hostapd_cfg "auth_server_port=$port" "$N" config_get secret "$vif" key append hostapd_cfg "auth_server_shared_secret=$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" "$N" ;; *) wpa=0 crypto= ;; esac config_get ifname "$vif" ifname config_get bridge "$vif" bridge config_get ssid "$vif" ssid config_get device "$vif" device config_get channel "$device" channel config_get hwmode "$device" hwmode case "$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 } } 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=$ssid debug=0 wpa=$wpa ${crypto:+wpa_pairwise=$crypto} ${country:+country_code=$country} ${hwmode_11n:+ieee80211n=1} ${ht_capab:+ht_capab=$ht_capab} $hostapd_cfg EOF hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf }