#!/bin/sh /etc/rc.common
# Copyright (c) 2013 Qualcomm Atheros, Inc.
#
# All Rights Reserved.
# Qualcomm Atheros Confidential and Proprietary.

START=50

SERVICE_WRITE_PID=1
SERVICE_DAEMONIZE=1
#SERVICE_DEBUG=1
NETWORK_RESTART=0
SERVICE_DEBUG_OUTPUT=0
ACD_DEBUG_OUTOUT=0
SERVICE_PATH="/usr/sbin/acd"

ACD_CONFIG_FILE="/tmp/acd.conf"
WIRELESS_CONFIG_FILE="/etc/config/wireless"

EXTRA_COMMANDS="restart_in_hc_mode restart_in_hr_mode"
EXTRA_HELP=<<EOF
        restart_in_hc_mode Reconfigure the system in Hybrid Client mode
        restart_in_hr_mode Reconfigure the system in Hybrid Router mode
EOF

. /lib/functions/hyfi-debug.sh
. /lib/functions/hyfi-iface.sh
. /lib/functions/hyfi-network.sh

ieee1905managed= config_changed=
wsplcd_start=0 wsplcd_restart=0
hyd_start=0 vhyfid_start=0

__acd_echo() {
	if [ "$ACD_DEBUG_OUTOUT" -gt 0 ]; then
		echo "acd: $1" > /dev/console
	else
		echo "acd: $1"
	fi
}

__acd_append_wireless() {
    echo "$1" >> "$WIRELESS_CONFIG_FILE"
}

__acd_router_mode() {
	local wan_iface

	config_load network
	config_get wan_iface wan ifname

	[ -n "$wan_iface" ] && return 1

	return 0
}

__acd_get_freq_from_standard() {
	config_get hwmode $1 hwmode '11ng'

	case "$hwmode" in
		11ac|11na|11a)
			eval "$2='5G'"
		;;

		*)
			eval "$2='2G'"
		;;
	esac
}

__acd_vaps_in_default_config() {
	local ssid encryption last_vap

	ssid=`uci show wireless | grep "ssid=OpenWrt"`
	encryption=`uci show wireless | grep "encryption=none"`

	__acd_echo "ssid=$ssid encryption=$encryption"

	if [ -n "$ssid" -a -n "$encryption" ]; then
		return 1
	fi

	last_vap=`uci show wireless.@wifi-iface[-1]`
	__acd_echo "last_vap=$last_vap"
	[ -z "$last_vap" ] && return 1

	return 0
}

__acd_destroy_vaps() {
	local retval

	/sbin/wifi down
	/etc/init.d/network stop
	uci delete wireless.@wifi-iface[0] 2>/dev/null; retval=$?

	while [ "$retval" -eq 0 ]; do
		uci delete wireless.@wifi-iface[0] 2>/dev/null
		retval=$?
	done

	uci commit wireless
}

__acd_enable_wifi() {
	local DEVICES=
	local device changed=0

	config_cb() {
			local type="$1"
			local section="$2"

			case "$type" in
					wifi-device)
							append DEVICES "$section"
					;;
			esac
	}
	config_load wireless

	for device in $DEVICES ; do
		config_get_bool disabled $device disabled
		[ -z "$disabled" ] && continue
		[ "$disabled" -eq 0 ] && continue

		uci_set wireless $device disabled '0'
		changed=1
	done

	if [ "$changed" -gt 0 ]; then
		uci_commit wireless
		config_changed=1
	fi
}

__acd_create_vaps() {
	local DEVICES=
	local HYFI_SEED=
	local AP_disabled=0 STA_disabled=0

	config_cb() {
		local type="$1"
		local section="$2"

		case "$type" in
			wifi-device)
				append DEVICES "$section"
			;;
		esac
	}
	config_load wireless

	HYFI_SEED=`ifconfig br-$ieee1905managed | grep HWaddr | awk '{print $5}' | awk -F":" '{print $4$5$6}'`

	if [ -z "$DEVICES" ]; then
		DEVICES=`ls /sys/class/net/wifi* -d1 | awk -F/ '{print $NF}'`
	fi

	for device in $DEVICES ; do
		uci_set wireless $device disabled '0'

		__acd_append_wireless ""
		__acd_append_wireless "config wifi-iface"
		__acd_append_wireless "		option device '$device'"
		__acd_append_wireless "		option mode 'ap'"
		__acd_append_wireless "		option athnewind '0'"
		__acd_append_wireless "		option ssid 'Hy-Fi Network $HYFI_SEED'"
		__acd_append_wireless "		option wds '1'"
		__acd_append_wireless "		option network '$ieee1905managed'"
		__acd_append_wireless "		option encryption 'psk2'"
		__acd_append_wireless "		option key 'hyfi$HYFI_SEED'"
		__acd_append_wireless "		option wps_pbc '1'"
		__acd_append_wireless "		option disabled '$AP_disabled'"
		__acd_append_wireless ""
		__acd_append_wireless "config wifi-iface"
		__acd_append_wireless "		option device '$device'"
		__acd_append_wireless "		option mode 'sta'"
		__acd_append_wireless "		option athnewind '0'"
		__acd_append_wireless "		option ssid 'Hy-Fi Network $HYFI_SEED'"
		__acd_append_wireless "		option wds '1'"
		__acd_append_wireless "		option network '$ieee1905managed'"
		__acd_append_wireless "		option encryption 'psk2'"
		__acd_append_wireless "		option key 'hyfi$HYFI_SEED'"
		__acd_append_wireless "		option wps_pbc '1'"
		__acd_append_wireless "		option disabled '$STA_disabled'"
		__acd_append_wireless ""
	done
	uci_commit wireless
}

# __acd_disable_vaps
# input: $1 config
# input: $2 network
# input: $3 mode: sta or ap
# input: $4 1 - disable, 0 - enable
# input-output: $5 change counter
__acd_disable_vaps() {
	local config="$1"
	local mode network disabled
	local changed="$5"

	config_get mode "$config" mode
	config_get network "$config" network
	config_get disabled "$config" disabled

	if [ "$2" = "$network" -a "$3" = "$mode" -a ! "$4" = "$disabled" ]; then
		uci_set wireless $config disabled $4
		changed=$((changed + 1))
		eval "$5='$changed'"
		__acd_echo "Set VAP $config to Disabled=$4"
	fi
}

__acd_config_hr_mode() {
	config_load hyd
	config_get mode config 'Mode'

	if [ ! "$mode" = 'HYROUTER' ]; then
		uci_set hyd config 'Mode' 'HYROUTER'
		config_changed=1
		uci commit hyd
		__acd_echo "Set hyd in HR mode"
	fi

	config_load wsplcd
	config_get mode config 'RunMode'

	if [ ! "$mode" = 'REGISTRAR' ]; then
		uci_set wsplcd config 'RunMode' 'REGISTRAR'
		config_changed=1
		uci commit wsplcd
		__acd_echo "Set wsplcd in REGISTRAR mode"
		wsplcd_restart=1
	fi

	config_load wireless
	config_foreach __acd_disable_vaps wifi-iface $ieee1905managed 'sta' '1' config_changed
	config_foreach __acd_disable_vaps wifi-iface $ieee1905managed 'ap' '0' config_changed
	uci commit wireless
}

__acd_config_hc_mode() {
	config_load hyd
	config_get mode config 'Mode'

	if [ ! "$mode" = 'HYCLIENT' ]; then
		uci_set hyd config 'Mode' 'HYCLIENT'
		config_changed=1
		uci commit hyd
		__acd_echo "Set hyd in HC mode"
	fi

	config_load wsplcd
	config_get mode config 'RunMode'

	if [ ! "$mode" = 'ENROLLEE' ]; then
		uci_set wsplcd config 'RunMode' 'ENROLLEE'
		config_changed=1
		uci commit wsplcd
		__acd_echo "Set wsplcd in ENROLLEE mode"
		wsplcd_restart=1
	fi

	config_load wireless
	config_foreach __acd_disable_vaps wifi-iface $ieee1905managed 'sta' '0' config_changed
	config_foreach __acd_disable_vaps wifi-iface $ieee1905managed 'ap' '1' config_changed
	uci commit wireless
}

__acd_config_hc_boot_mode() {
	config_load hyd
	config_get mode config 'Mode'
	config_get_bool hyd_enabled config 'Enable' 0
	config_load vhyfid
	config_get_bool vhyfid_enabled config 'Enable' 0
	local disable_sta=1

	if [ "$hyd_enabled" -eq 1 -a "$vhyfid_enabled" -eq 0 ]; then
		disable_sta=0
	fi

	if [ ! "$mode" = 'HYCLIENT' ]; then
		uci_set hyd config 'Mode' 'HYCLIENT'
		config_changed=1
		uci commit hyd
		__acd_echo "Set hyd in HC mode"
	fi

	config_load wsplcd
	config_get mode config 'RunMode'

	if [ ! "$mode" = 'ENROLLEE' ]; then
		uci_set wsplcd config 'RunMode' 'ENROLLEE'
		config_changed=1
		uci commit wsplcd
		__acd_echo "Set wsplcd in ENROLLEE mode"
		wsplcd_restart=1
	fi

	config_load wireless
	config_foreach __acd_disable_vaps wifi-iface $ieee1905managed 'sta' $disable_sta config_changed
	uci commit wireless
}


__acd_restart_dependencies() {
	__acd_echo "Restarting network stack..."
	hyfi_network_restart
	if [ "$wsplcd_start" -gt 0 ]; then
		/etc/init.d/wsplcd start
	else
		[ "$wsplcd_restart" -gt 0 ] && /etc/init.d/wsplcd restart
	fi
	[ "$hyd_start" -gt 0 ] && /etc/init.d/hyd start
	[ "$vhyfid_start" -gt 0 ] && /etc/init.d/vhyfid start
}

start() {
	local enabled default_vaps router_mode
	local mode

	stop
	config_changed=0

	config_load 'acd'
	config_get_bool enabled config 'AutoConfigEnable' '0'

	[ "$enabled" -gt 0 ] || {
		return 1
	}

	hyfi_echo acd "starting Hy-Fi auto-configuration"
	# Get the IEEE1905.1 managed bridge name
	hyfi_get_ieee1905_managed_iface ieee1905managed

	__acd_echo "Managed bridge: $ieee1905managed"

	__acd_vaps_in_default_config

	if [ "$?" -gt 0 ]; then
		__acd_destroy_vaps
		__acd_create_vaps
		config_changed=1
		__acd_echo "Created new VAPs"
	fi

	__acd_enable_wifi

	__acd_router_mode
	if [ "$?" -gt 0 ]; then
		# WAN group not empty
		__acd_config_hr_mode
	else
		# WAN group empty or non-existent
		# Disable all STAs and reset hyd state
		__acd_config_hc_boot_mode
	fi

	local vhyfid_rcd_enabled=`ls /etc/rc.d/S??vhyfid 2> /dev/null`

	config_load hyd
	config_get_bool enabled config 'Enable' 0
	config_get hyd_control config 'Control'

	if [ "$hyd_control" = "manual" ]; then
		if [ "$enabled" -eq 0 ]; then
			uci_set hyd config 'Enable' '1'
			config_changed=1
			uci commit hyd
			hyd_start=1
		else
			if [ ! -f /var/run/.hyd ]; then
				config_changed=1
				hyd_start=1
			fi
		fi
	fi

	if [ -n "$vhyfid_rcd_enabled" ]; then
		config_load vhyfid
		config_get_bool enabled config 'Enable' 0

		if [ "$enabled" -eq 0 ]; then
			uci_set vhyfid config 'Enable' '1'
			config_changed=1
			uci commit vhyfid
			__acd_echo "Enabled Virtual Hy-Fi"
			vhyfid_start=1
		fi
	fi

	if [ -f "/etc/init.d/wsplcd" ]; then
		config_load wsplcd
		config_get_bool enabled config 'HyFiSecurity' 0

		if [ "$enabled" -eq 0 ]; then
			uci_set wsplcd config 'HyFiSecurity' '1'
			config_changed=1
			uci commit wsplcd
			__acd_echo "Enabled security and configuration"
			wsplcd_start=1
		fi
	fi

	if [ "$config_changed" -gt 0 ]; then
		__acd_restart_dependencies
	fi

	__acd_router_mode
	if [ "$?" -eq 0 ]; then
		config_load hyd
		config_get_bool hyd_enabled config 'Enable' 0

		hyfi_network_sync
		start-stop-daemon -K -n acd-run.sh -s SIGKILL >/dev/null
		if [ "$hyd_enabled" -gt 0 ]; then
			# Monitor Ethernet ports
			start-stop-daemon -S -x /usr/sbin/acd-run.sh -b
		fi
	fi
}

stop() {
	hyfi_network_sync
	start-stop-daemon -K -n acd-run.sh -s SIGKILL >/dev/null
}

restart() {
	stop

	config_load 'acd'
	config_get_bool enabled config 'AutoConfigEnable' '0'

	[ "$enabled" -gt 0 ] || {
			return 1
	}

	__acd_router_mode
	if [ "$?" -eq 0 ]; then
		config_load hyd
		config_get_bool hyd_enabled config 'Enable' 0

		if [ "$hyd_enabled" -gt 0 ]; then
			# Monitor Ethernet ports
			start-stop-daemon -S -x /usr/sbin/acd-run.sh -b
		fi
	else
		start
	fi
}

restart_in_hc_mode() {
	hyfi_get_ieee1905_managed_iface ieee1905managed

	stop
	__acd_config_hc_mode
	__acd_restart_dependencies
	/etc/init.d/hyd restart

	__acd_router_mode
	if [ "$?" -eq 0 ]; then
		# Monitor Ethernet ports
		start-stop-daemon -S -x /usr/sbin/acd-run.sh -b
	fi
}

restart_in_hr_mode() {
	hyfi_get_ieee1905_managed_iface ieee1905managed

	stop
	__acd_config_hr_mode
	__acd_restart_dependencies
	/etc/init.d/hyd restart

	__acd_router_mode
	if [ "$?" -eq 0 ]; then
		# Monitor Ethernet ports
		start-stop-daemon -S -x /usr/sbin/acd-run.sh -b -- hr
	fi
}