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137 lines
3.4 KiB
Bash
137 lines
3.4 KiB
Bash
hostapd_set_bss_options() {
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local var="$1"
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local vif="$2"
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local enc wpa_group_rekey
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config_get enc "$vif" encryption
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config_get wpa_group_rekey "$vif" wpa_group_rekey
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# Examples:
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# psk-mixed/tkip => WPA1+2 PSK, TKIP
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# wpa-psk2/tkip+aes => WPA2 PSK, CCMP+TKIP
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# wpa2/tkip+aes => WPA2 RADIUS, CCMP+TKIP
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# ...
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# TODO: move this parsing function somewhere generic, so that
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# later it can be reused by drivers that don't use hostapd
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# crypto defaults: WPA2 vs WPA1
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case "$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 "$enc" in
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*tkip+aes|*tkip+ccmp) crypto="CCMP TKIP";;
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*aes|*ccmp) crypto="CCMP";;
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*tkip) crypto="TKIP";;
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esac
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# use crypto/auth settings for building the hostapd config
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case "$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" "$N"
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fi
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;;
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*wpa*)
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# required fields? formats?
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# hostapd is particular, maybe a default configuration for failures
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config_get server "$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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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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}
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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 "$hwmode" in
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bg) hwmode=g;;
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esac
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[ "$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=$hwmode}
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${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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