177 lines
4.8 KiB
Bash
177 lines
4.8 KiB
Bash
hostapd_set_bss_options() {
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local var="$1"
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local vif="$2"
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local enc wpa_group_rekey wps_possible
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config_get enc "$vif" encryption
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config_get wpa_group_rekey "$vif" wpa_group_rekey
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config_get_bool ap_isolate "$vif" isolate 0
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config_get device "$vif" device
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config_get hwmode "$device" hwmode
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if [ "$ap_isolate" -gt 0 ]; then
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append "$var" "ap_isolate=$ap_isolate" "$N"
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fi
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# Examples:
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# psk-mixed/tkip => WPA1+2 PSK, TKIP
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# wpa-psk2/tkip+aes => WPA2 PSK, CCMP+TKIP
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# wpa2/tkip+aes => WPA2 RADIUS, CCMP+TKIP
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# ...
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# TODO: move this parsing function somewhere generic, so that
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# later it can be reused by drivers that don't use hostapd
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# crypto defaults: WPA2 vs WPA1
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case "$enc" in
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wpa2*|*psk2*)
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wpa=2
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crypto="CCMP"
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;;
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*mixed*)
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wpa=3
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crypto="CCMP TKIP"
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;;
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*)
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wpa=1
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crypto="TKIP"
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;;
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esac
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# explicit override for crypto setting
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case "$enc" in
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*tkip+aes|*tkip+ccmp|*aes+tkip|*ccmp+tkip) crypto="CCMP TKIP";;
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*aes|*ccmp) crypto="CCMP";;
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*tkip) crypto="TKIP";;
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esac
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# enforce CCMP for 11ng and 11na
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case "$hwmode" in
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*ng|*na) crypto="CCMP";;
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esac
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# use crypto/auth settings for building the hostapd config
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case "$enc" in
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*psk*)
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config_get psk "$vif" key
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if [ ${#psk} -eq 64 ]; then
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append "$var" "wpa_psk=$psk" "$N"
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else
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append "$var" "wpa_passphrase=$psk" "$N"
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fi
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wps_possible=1
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;;
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*wpa*)
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# required fields? formats?
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# hostapd is particular, maybe a default configuration for failures
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config_get server "$vif" server
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append "$var" "auth_server_addr=$server" "$N"
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config_get port "$vif" port
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port=${port:-1812}
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append "$var" "auth_server_port=$port" "$N"
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config_get secret "$vif" key
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append "$var" "auth_server_shared_secret=$secret" "$N"
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config_get nasid "$vif" nasid
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append "$var" "nas_identifier=$nasid" "$N"
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append "$var" "eapol_key_index_workaround=1" "$N"
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append "$var" "radius_acct_interim_interval=300" "$N"
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append "$var" "ieee8021x=1" "$N"
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append "$var" "auth_algs=1" "$N"
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append "$var" "wpa_key_mgmt=WPA-EAP" "$N"
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append "$var" "wpa_group_rekey=300" "$N"
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append "$var" "wpa_gmk_rekey=640" "$N"
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;;
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*wep*)
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config_get key "$vif" key
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key="${key:-1}"
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case "$key" in
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[1234])
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for idx in 1 2 3 4; do
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local zidx
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zidx=$(($idx - 1))
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config_get ckey "$vif" "key${idx}"
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[ -n "$ckey" ] && \
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append "$var" "wep_key${zidx}=$(prepare_key_wep "$ckey")" "$N"
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done
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append "$var" "wep_default_key=$((key - 1))" "$N"
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;;
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*)
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append "$var" "wep_key0=$(prepare_key_wep "$key")" "$N"
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append "$var" "wep_default_key=0" "$N"
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;;
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esac
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wpa=0
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crypto=
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;;
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*)
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wpa=0
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crypto=
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;;
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esac
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append "$var" "wpa=$wpa" "$N"
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[ -n "$crypto" ] && append "$var" "wpa_pairwise=$crypto" "$N"
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[ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
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config_get ssid "$vif" ssid
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config_get bridge "$vif" bridge
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config_get ieee80211d "$vif" ieee80211d
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config_get iapp_interface "$vif" iapp_interface
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config_get_bool wps_pbc "$vif" wps_pushbutton 0
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[ -n "$wps_possible" -a "$wps_pbc" -gt 0 ] && {
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append "$var" "eap_server=1" "$N"
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append "$var" "wps_state=2" "$N"
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append "$var" "ap_setup_locked=1" "$N"
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append "$var" "config_methods=push_button" "$N"
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}
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append "$var" "ssid=$ssid" "$N"
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[ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N"
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[ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N"
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[ -n "$iapp_interface" ] && append "$var" $(uci_get_state network "$iapp_interface" ifname "$iapp_interface") "$N"
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[ "$wpa" -ge "2" ] && config_get ieee80211w "$vif" ieee80211w
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case "$ieee80211w" in
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[012])
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append "$var" "ieee80211w=$ieee80211w" "$N"
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[ "$ieee80211w" -gt "0" ] && {
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config_get ieee80211w_max_timeout "$vif" ieee80211w_max_timeout
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config_get ieee80211w_retry_timeout "$vif" ieee80211w_retry_timeout
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[ -n "$ieee80211w_max_timeout" ] && \
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append "$var" "assoc_sa_query_max_timeout=$ieee80211w_max_timeout" "$N"
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[ -n "$ieee80211w_retry_timeout" ] && \
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append "$var" "assoc_sa_query_retry_timeout=$ieee80211w_retry_timeout" "$N"
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}
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;;
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esac
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}
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hostapd_setup_vif() {
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local vif="$1"
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local driver="$2"
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hostapd_cfg=
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hostapd_set_bss_options hostapd_cfg "$vif"
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config_get ifname "$vif" ifname
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config_get device "$vif" device
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config_get channel "$device" channel
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config_get hwmode "$device" hwmode
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case "$hwmode" in
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*bg|*gdt|*gst|*fh) hwmode=g;;
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*adt|*ast) hwmode=a;;
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esac
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[ "$channel" = auto ] && channel=
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[ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
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cat > /var/run/hostapd-$ifname.conf <<EOF
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ctrl_interface=/var/run/hostapd-$ifname
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driver=$driver
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interface=$ifname
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${hwmode:+hw_mode=${hwmode#11}}
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${channel:+channel=$channel}
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$hostapd_cfg
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EOF
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hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf
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}
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