mirror of https://github.com/hak5/openwrt.git
112 lines
2.7 KiB
Bash
112 lines
2.7 KiB
Bash
hostapd_setup_vif() {
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local vif="$1"
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local driver="$2"
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local hostapd_cfg=
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# Examples:
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# psk-mixed/tkip => WPA1+2 PSK, TKIP
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# wpa-psk2/tkip+aes => WPA2 PSK, CCMP+TKIP
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# wpa2/tkip+aes => WPA2 RADIUS, CCMP+TKIP
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# ...
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# TODO: move this parsing function somewhere generic, so that
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# later it can be reused by drivers that don't use hostapd
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# crypto defaults: WPA2 vs WPA1
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case "$enc" in
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wpa2*|WPA2*|*PSK2*|*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 "$enc" in
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*tkip+aes|*TKIP+AES|*tkip+ccmp|*TKIP+CCMP) crypto="CCMP TKIP";;
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*tkip|*TKIP) crypto="TKIP";;
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*aes|*AES|*ccmp|*CCMP) crypto="CCMP";;
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esac
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# use crypto/auth settings for building the hostapd config
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case "$enc" in
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*psk*|*PSK*)
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config_get psk "$vif" key
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if [ ${#psk} -eq 64 ]; then
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append hostapd_cfg "wpa_psk=$psk" "$N"
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else
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append hostapd_cfg "wpa_passphrase=$psk" "$N"
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fi
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;;
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*wpa*|*WPA*)
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# required fields? formats?
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# hostapd is particular, maybe a default configuration for failures
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config_get server "$vif" server
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append hostapd_cfg "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 hostapd_cfg "auth_server_port=$port" "$N"
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config_get secret "$vif" key
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append hostapd_cfg "auth_server_shared_secret=$secret" "$N"
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config_get nasid "$vif" nasid
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append hostapd_cfg "nas_identifier=$nasid" "$N"
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append hostapd_cfg "eapol_key_index_workaround=1" "$N"
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append hostapd_cfg "radius_acct_interim_interval=300" "$N"
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append hostapd_cfg "ieee8021x=1" "$N"
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append hostapd_cfg "auth_algs=1" "$N"
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append hostapd_cfg "wpa_key_mgmt=WPA-EAP" "$N"
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append hostapd_cfg "wpa_group_rekey=300" "$N"
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append hostapd_cfg "wpa_gmk_rekey=640" "$N"
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;;
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*)
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wpa=0
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crypto=
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;;
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esac
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config_get ifname "$vif" ifname
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config_get bridge "$vif" bridge
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config_get ssid "$vif" ssid
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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 "$device" hwmode
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config_get country "$device" country
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case "$hwmode" in
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11a) hwmode=a;;
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11b) hwmode=b;;
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11g) hwmode=g;;
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11n)
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hwmode=g
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append hostapd_cfg "ieee80211n=1" "$N"
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config_get ht_capab "$device" ht_capab
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;;
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*)
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hwmode=
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[ "$channel" -gt 14 ] && hwmode=a
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;;
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esac
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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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hw_mode=${hwmode:-g}
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channel=$channel
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${bridge:+bridge=$bridge}
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ssid=$ssid
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debug=0
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wpa=$wpa
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${crypto:+wpa_pairwise=$crypto}
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${country:+country_code=$country}
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${ht_capab:+ht_capab=$ht_capab}
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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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