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openwrt-xburst/package/hostapd/files/wpa_supplicant.sh
nbd c0a4b957c5 mac80211: always use wpa_supplicant for client connections (patch by Stijn Tintel)
Since client mode in mac80211is unreliable without using wpa_supplicant,
it would be better to enable wpa_supplicant by default.

With this patch, wpa_supplicant will always be used for mac80211-based
drivers in client mode. This will break client mode for images that
don't include wpa_supplicant or wpad, so maybe I need to add a check
somewhere to see if wpa_supplicant is available, and show the user a
warning if he tries client mode without wpa_supplicant. Suggestions on
where to add this check are welcome.

Tested with ath5k in client mode on open and wpa2-psk network, and
tested on my ath9k based AP as well to make sure it doesn't break AP mode.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19718 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-02-19 01:07:21 +00:00

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wpa_supplicant_setup_vif() {
local vif="$1"
local driver="$2"
local key="$key"
# wpa_supplicant should use wext for mac80211 cards
[ "$driver" = "mac80211" ] && driver='wext'
# make sure we have the encryption type and the psk
[ -n "$enc" ] || {
config_get enc "$vif" encryption
}
[ -n "$key" ] || {
config_get key "$vif" key
}
case "$enc" in
*none*)
key_mgmt='NONE'
;;
*wep*)
key_mgmt='NONE'
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 "wep_key${zidx}" "wep_key${zidx}=$(prepare_key_wep "$ckey")"
done
wep_tx_keyidx="wep_tx_keyidx=$((key - 1))"
;;
*)
wep_key0="wep_key0=$(prepare_key_wep "$key")"
wep_tx_keyidx="wep_tx_keyidx=0"
;;
esac
;;
*psk*)
key_mgmt='WPA-PSK'
config_get_bool usepassphrase "$vif" passphrase 1
case "$enc" in
*psk2*)
proto='proto=RSN'
if [ "$usepassphrase" = "1" ]; then
passphrase="psk=\"${key}\""
else
passphrase="psk=${key}"
fi
;;
*psk*)
proto='proto=WPA'
if [ "$usepassphrase" = "1" ]; then
passphrase="psk=\"${key}\""
else
passphrase="psk=${key}"
fi
;;
esac
;;
*wpa*|*8021x*)
proto='proto=WPA2'
key_mgmt='WPA-EAP'
config_get ca_cert "$vif" ca_cert
ca_cert=${ca_cert:+"ca_cert=\"$ca_cert\""}
case "$eap_type" in
tls)
pairwise='pairwise=CCMP'
group='group=CCMP'
config_get priv_key "$vif" priv_key
config_get priv_key_pwd "$vif" priv_key_pwd
priv_key="private_key=\"$priv_key\""
priv_key_pwd="private_key_passwd=\"$priv_key_pwd\""
;;
peap|ttls)
config_get auth "$vif" auth
config_get identity "$vif" identity
config_get password "$vif" password
phase2="phase2=\"auth=${auth:-MSCHAPV2}\""
identity="identity=\"$identity\""
password="password=\"$password\""
;;
esac
eap_type="eap=$(echo $eap_type | tr 'a-z' 'A-Z')"
;;
esac
config_get ifname "$vif" ifname
config_get bridge "$vif" bridge
config_get ssid "$vif" ssid
config_get bssid "$vif" bssid
bssid=${bssid:+"bssid=$bssid"}
rm -rf /var/run/wpa_supplicant-$ifname
cat > /var/run/wpa_supplicant-$ifname.conf <<EOF
ctrl_interface=/var/run/wpa_supplicant-$ifname
network={
scan_ssid=1
ssid="$ssid"
$bssid
key_mgmt=$key_mgmt
$proto
$passphrase
$pairwise
$group
$eap_type
$ca_cert
$priv_key
$priv_key_pwd
$phase2
$identity
$password
$wep_key0
$wep_key1
$wep_key2
$wep_key3
$wep_tx_keyidx
}
EOF
[ -z "$proto" -a "$key_mgmt" != "NONE" ] || \
wpa_supplicant ${bridge:+ -b $bridge} -B -P "/var/run/wifi-${ifname}.pid" -D ${driver:-wext} -i "$ifname" -c /var/run/wpa_supplicant-$ifname.conf
}