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# Uses wpa_supplicant to check for association to a network
# wpa_check interface [timeout]
wpa_check()
{
local timeout=0 INTERFACE=$1 TIMEOUT=${2:-15}
while [[ $timeout -lt $TIMEOUT ]]; do
( # Sometimes wpa_supplicant isn't ready so silence errors for 2s only to avoid hiding real errors
if [[ $timeout -lt 2 ]]; then
eval `wpa_cli status 2> /dev/null|grep wpa_state`
else
eval `wpa_cli status|grep wpa_state`
fi
[[ "$wpa_state" = "COMPLETED" ]]
) && return 0
sleep 1
let timeout++
done
echo "$wpa_state"
wpa_cli terminate >/dev/null 2>&1
return 1
}
start_wpa()
{
INTERFACE="$1"; WPA_CONF="$2"; WPA_OPTS="$3"
wpa_supplicant -B -P/var/run/wpa_supplicant_${INTERFACE}.pid -i"${INTERFACE}" -c "$WPA_CONF" $WPA_OPTS
sleep 1
if [[ ! -f "/var/run/wpa_supplicant_${INTERFACE}.pid" ]]; then
return 1
fi
}
stop_wpa()
{
wpa_cli terminate &> /dev/null
if [[ -f /var/run/wpa_supplicant_$1.pid ]]; then
kill $(cat /var/run/wpa_supplicant_$1.pid) &>/dev/null &
fi
}
# vim: set ts=4 et sw=4 ft=sh:
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