#!/bin/sh /etc/rc.common
#
# @@-COPYRIGHT-START-@@
#
# Copyright (c) 2013-2018 Qualcomm Technologies, Inc.
#
# All Rights Reserved.
# Confidential and Proprietary - Qualcomm Technologies, Inc.
#
# 2013-2016 Qualcomm Atheros, Inc.
#
# All Rights Reserved.
# Qualcomm Atheros Confidential and Proprietary.
#
# @@-COPYRIGHT-END-@@
#

START=55
SERVICE_WRITE_PID=1
SERVICE_DAEMONIZE=1
SERVICE_DEBUG_OUTPUT=0
SERVICE_PATH="/usr/sbin/lbd"
LBD_CONFIG_FILE="/tmp/lbd.conf"
LBD_RUN_FILE="/var/run/.lbd"

#Check lbd config to enable/disable cfg80211
config_load 'lbd'
config_get_bool lbd_cfg config 'cfg80211_enable' '0'
if [ "$lbd_cfg" -eq "1" ]; then
    LBD_CFG80211=-cfg80211
else
    LBD_CFG80211=
fi

. /lib/functions/lbd-config.sh
. /lib/functions/whc-debug.sh
. /lib/functions/whc-iface.sh

check_bands() {
	local band_24g
	local band_5g

	driver=$(lsmod | cut -d' ' -f 1 | grep ath10k_core)

	if [ "$driver" == "ath10k_core" ]; then
		BANDS=$(/usr/sbin/iw dev 2> /dev/null | grep channel | cut -d' ' -f 2 | cut -d'.' -f 1)
		for channel in $BANDS
		do
			whc_echo lbd "bands $BANDS channel $channel"
			if [ "$channel" -le "13" ]; then
				band_24g=1
			elif [ "$channel" -ge "32" ]; then
				band_5g=1
			fi
		done
	else
		BANDS=$(/usr/sbin/iwconfig 2> /dev/null | grep Frequency | cut -d':' -f 3 | cut -d'.' -f 1)
		for band in $BANDS
		do
			if [ "$band" == "2" ]; then
				band_24g=1
			elif [ "$band" == "5" ]; then
				band_5g=1
			fi
		done
	fi

	if [ "$band_24g" == "1" ] && [ "$band_5g" == "1" ]; then
		dual_bands=1
	else
		dual_bands=0
	fi
}

check_interface_up() {
	local section="config"
	local option="MatchingSSID"
	local all_wlan_ifaces
	local ssid_to_match
	wifi_interface_up=0
	count=2

	#init the interface lists
	whc_init_wlan_interface_list

	# Get the list of wlan interfaces, seperated by comma
	config_list_foreach "${section}" "${option}" whc_get_wlan_ifaces all_wlan_ifaces ssid_to_match "$br_name"

	while [ "$wifi_interface_up" -eq "0" ]
	do
		interface=`echo ${all_wlan_ifaces}| cut -d':' -f $count | cut -d',' -f 1`
		while [ ! -z $interface ]
		do
			essid=$(/usr/sbin/iwconfig $interface 2> /dev/null | grep ESSID | cut -d'"' -f 2)
			if [ -z $essid ]; then
				sleep 2s
			else
				break 1
		fi
		done
		if [ -z $interface ];then
			wifi_interface_up=1
		else
			count=$((count+=1))
		fi
	done
}

start() {
	whc_wifi_config_lock
	__stop

	config_load 'lbd'
	config_get_bool enabled config 'Enable' '0'
	local lbd_rcd_enabled=`ls /etc/rc.d/S${START}lbd 2> /dev/null`

	[ "$enabled" -gt 0 -a -n "$lbd_rcd_enabled" ] || {
		whc_wifi_config_unlock
		return 1
	}

	check_bands
	if [ "$dual_bands" -ne "1" ]; then
		whc_echo lbd "require both 2.4 GHz and 5 GHz to be configured. Aborting start."
		whc_wifi_config_unlock
		return 1
	fi

	check_interface_up
	whc_echo lbd "starting daemon"
	# Create configuration file and start lbd
	lbd_create_config $LBD_CONFIG_FILE '' # second param indicates running in single AP mode
	${SVCDBG}service_start ${SERVICE_PATH} -d -C "$LBD_CONFIG_FILE" $LBD_CFG80211

	touch $LBD_RUN_FILE
	whc_wifi_config_unlock
}

__stop() {
	${SVCDBG}service_stop ${SERVICE_PATH}

	# Workaround, sometimes service_stop does not kill lbd
	start-stop-daemon -K -x ${SERVICE_PATH} -s SIGKILL > /dev/null
}

stop() {
	__stop
	config_load 'lbd'
}

restart() {
	[ -f "$LBD_RUN_FILE" ] || return
	start
}