#!/bin/sh

reset_conf()
{
	echo "config corrupted, reset wifi.conf"
	cp /usr/local/share/script/wifi.conf /pref/wifi.conf
	cat /pref/wifi.conf | sed -e 's/$/\r/' > /tmp/fuse_d/MISC/wifi.conf
	killall hostapd dnsmasq 2>/dev/null
}

apply_ap_conf()
{
	#Load the parameter settings
	conf=`cat /pref/wifi.conf | grep -Ev "^#"`

	#LOCAL_IP
	LOCAL_IP=`echo "${conf}" | grep LOCAL_IP | cut -c 10-`
	echo "LOCAL_IP=${LOCAL_IP}"
	killall udhcpc
	ifconfig wlan0 $LOCAL_IP
	if [ $? -ne 0 ]; then
		reset_conf
		return 1
	fi
	route add default gw $LOCAL_IP

	#LOCAL_NETMASK
	LOCAL_NETMASK=`echo "${conf}" | grep LOCAL_NETMASK | cut -c 15-`
	echo "LOCAL_NETMASK=${LOCAL_NETMASK}"
	ifconfig wlan0 netmask $LOCAL_NETMASK
	if [ $? -ne 0 ]; then
		reset_conf
		return 1
	fi

	#DHCP_IP_START DHCP_IP_END
	DHCP_IP_START=`echo "${conf}" | grep DHCP_IP_START | cut -c 15-`
	echo "DHCP_IP_START=${DHCP_IP_START}"
	DHCP_IP_END=`echo "${conf}" | grep DHCP_IP_END | cut -c 13-`
	echo "DHCP_IP_END=${DHCP_IP_END}"
	dnsmasq -5 -K -R -n --dhcp-range=$DHCP_IP_START,$DHCP_IP_END,1h
	if [ $? -ne 0 ]; then
		reset_conf
		return 1
	fi


	#generate hostapd.conf
	echo "interface=wlan0" > /tmp/hostapd.conf
	echo "ctrl_interface=/var/run/hostapd" >> /tmp/hostapd.conf
	echo "beacon_int=100" >> /tmp/hostapd.conf
	echo "dtim_period=1" >> /tmp/hostapd.conf
	echo "preamble=0" >> /tmp/hostapd.conf

	#AP_SSID
	AP_SSID=`echo "${conf}" | grep AP_SSID | cut -c 9-`
	echo "AP_SSID=${AP_SSID}"
	echo "ssid=${AP_SSID}" >> /tmp/hostapd.conf

	#AP_MAXSTA
	AP_MAXSTA=`echo "${conf}" | grep AP_MAXSTA | cut -c 11-`
	echo "AP_MAXSTA=${AP_MAXSTA}"
	echo "max_num_sta=${AP_MAXSTA}" >> /tmp/hostapd.conf

	#AP_CHANNEL
	AP_CHANNEL=`echo "${conf}" | grep AP_CHANNEL | cut -c 12-`
	echo "AP_CHANNEL=${AP_CHANNEL}"
	if [ ${AP_CHANNEL} -lt 0 ]; then
		reset_conf
		return 1
	fi
	if [ $AP_CHANNEL -ne 0 ]; then
		echo "channel_num=${AP_CHANNEL}" >> /tmp/hostapd.conf
	fi

	#WEP, WPA, No Security
	AP_PUBLIC=`echo "${conf}" | grep AP_PUBLIC | cut -c 11-`
	echo "AP_PUBLIC=${AP_PUBLIC}"
	AP_WEP=`echo "${conf}" | grep AP_WEP | cut -c 8-`
	echo "AP_WEP=${AP_WEP}"
	if [ "${AP_PUBLIC}" != "yes" ] && [ "${AP_PUBLIC}" != "Yes" ] && [ "${AP_PUBLIC}" != "YES" ]; then
		if [ "${AP_WEP}" != "yes" ] && [ "${AP_WEP}" != "Yes" ] && [ "${AP_WEP}" != "YES" ]; then
			#WPA
			WPA_VERSION=`echo "${conf}" | grep WPA_VERSION | cut -c 13-`
			echo "WPA_VERSION=${WPA_VERSION}"
			echo "wpa=${WPA_VERSION}" >> /tmp/hostapd.conf
			WPA_PAIRWISE=`echo "${conf}" | grep WPA_PAIRWISE | cut -c 14-`
			echo "WPA_PAIRWISE=${WPA_PAIRWISE}"
			echo "wpa_pairwise=${WPA_PAIRWISE}" >> /tmp/hostapd.conf
			AP_PASSWD=`echo "${conf}" | grep AP_PASSWD | cut -c 11-`
			echo "AP_PASSWD=${AP_PASSWD}"
			echo "wpa_passphrase=${AP_PASSWD}" >> /tmp/hostapd.conf
			echo "wpa_key_mgmt=WPA-PSK" >> /tmp/hostapd.conf
		else
			#WEP
			WEP_DEFAULT_KEY=`echo "${conf}" | grep WEP_DEFAULT_KEY | cut -c 17-`
			echo "WEP_DEFAULT_KEY=${WEP_DEFAULT_KEY}"
			echo "wep_default_key=${WEP_DEFAULT_KEY}" >> /tmp/hostapd.conf
			WEP_KEY0=`echo "${conf}" | grep WEP_KEY0 | cut -c 10-`
			echo "WEP_KEY0=${WEP_KEY0}"
			echo "wep_key0=${WEP_KEY0}" >> /tmp/hostapd.conf
			WEP_KEY1=`echo "${conf}" | grep WEP_KEY1 | cut -c 10-`
			echo "WEP_KEY1=${WEP_KEY1}"
			echo "wep_key1=${WEP_KEY1}" >> /tmp/hostapd.conf
			WEP_KEY2=`echo "${conf}" | grep WEP_KEY2 | cut -c 10-`
			echo "WEP_KEY2=${WEP_KEY2}"
			echo "wep_key2=${WEP_KEY2}" >> /tmp/hostapd.conf
			WEP_KEY3=`echo "${conf}" | grep WEP_KEY3 | cut -c 10-`
			echo "WEP_KEY3=${WEP_KEY3}"
			echo "wep_key3=${WEP_KEY3}" >> /tmp/hostapd.conf
			AUTH_ALGS=`echo "${conf}" | grep AUTH_ALGS | cut -c 11-`
			echo "AUTH_ALGS=${AUTH_ALGS}"
			echo "auth_algs=${AUTH_ALGS}" >> /tmp/hostapd.conf
		fi
	fi

	hostapd -B /tmp/hostapd.conf
	if [ $? -ne 0 ]; then
		reset_conf
		return 1
	fi
	if [ $AP_CHANNEL -eq 0 ]; then
		#ACS (Automatic Channel Selection) between 1, 6, 11
		iwconfig wlan0 channel 0
		iwconfig wlan0 commit
	fi

	#send wifi status update message (Wifi On, AP mode, need to do wifi_postproc)
	#SendToItron 0xf403002c 2 1
	boot_done 1 2 1

	return 0
}

apply_ap_conf
rval=$?
echo -e "rval=${rval}\n"
if [ ${rval} -ne 0 ]; then
	killall -9 hostapd dnsmasq 2>/dev/null
	apply_ap_conf
fi