# $Id$
# configures networking on the host via mysql db settings

get_network_settings()
{
	local x i all DB_NETWORK

	# all arrays:
	# ->  hostname modules domain networking ip netmask dns gateway broadcast

	all=$(mysqldo "select iface,
			hostname,
			module,
			domain,
			networking,
			ip,
			netmask,
			dns,
			gateway,
			broadcast
		from cfg_network where serial='${ALX_SERIAL}'")

	# split'em up and put 'em in an array
	declare -i i=0
	for x in ${all}
	do
		DB_NETWORK[${i}]="${x}"
		((i++))
	done

	# and now put in usable var names and export them systemwide
	export ALX_IFACE="${DB_NETWORK[0]:=NULL}"
	export ALX_HOSTNAME="${DB_NETWORK[1]:=NULL}"
	export ALX_MODULE="${DB_NETWORK[2]:=NULL}"
	export ALX_DOMAIN="${DB_NETWORK[3]:=NULL}"
	export ALX_NETWORKING="${DB_NETWORK[4]:=NULL}"
	export ALX_IP="${DB_NETWORK[5]:=NULL}"
	export ALX_NETMASK="${DB_NETWORK[6]:=NULL}"
	export ALX_DNS="${DB_NETWORK[7]:=NULL}"
	export ALX_GATEWAY="${DB_NETWORK[8]:=NULL}"
	export ALX_BROADCAST="${DB_NETWORK[9]:=NULL}"

	# the new mac address hack
	export ALX_FORCEMACTO=$(mysqldo "select forcemacto from cfg_network where serial='${ALX_SERIAL}'")

	# wireless extensions
	export ALX_WIRELESS_BITRATE=$(mysqldo "select wireless_bitrate from cfg_network where serial='${ALX_SERIAL}'")
	export ALX_WIRELESS_CHANNEL=$(mysqldo "select wireless_channel from cfg_network where serial='${ALX_SERIAL}'")
	export ALX_WIRELESS_ESSID=$(mysqldo "select wireless_essid from cfg_network where serial='${ALX_SERIAL}'")
	export ALX_WIRELESS_FREQUENCY=$(mysqldo "select wireless_frequency from cfg_network where serial='${ALX_SERIAL}'")
	export ALX_WIRELESS_MODE=$(mysqldo "select wireless_mode from cfg_network where serial='${ALX_SERIAL}'")
	export ALX_WIRELESS_NICK=$(mysqldo "select wireless_nick from cfg_network where serial='${ALX_SERIAL}'")
	export ALX_WIRELESS_AUTH_MODE=$(mysqldo "select wireless_auth_mode from cfg_network where serial='${ALX_SERIAL}'")
	export ALX_WIRELESS_KEY_LENGTH=$(mysqldo "select wireless_key_length from cfg_network where serial='${ALX_SERIAL}'")
	export ALX_WIRELESS_KEY=$(mysqldo "select wireless_key from cfg_network where serial='${ALX_SERIAL}'")
	export ALX_WIRELESS_KEY_ASCII=$(mysqldo "select wireless_key_ascii from cfg_network where serial='${ALX_SERIAL}'")
}

config_networking()
{
	local iface
	local CONFIG

	# first of all get the vars
	get_network_settings

	# get the right nic
	if [[ -z ${ALX_IFACE} ]] || [[ ${ALX_IFACE} = NULL ]]
	then
		# default is 'eth0'
		iface="eth0"
	else
		iface="${ALX_IFACE}"
	fi

	# remove all old nics and modules configs
	find /etc/conf.d -type f -name 'net.*' | xargs rm
	find /etc/modprobe.d -type f -name 'net.*' | xargs rm

	# update the preliminary network
	# set an device alias for modprobe.conf
	[ ! -d /etc/modprobe.d ] && install -d /etc/modprobe.d
	# update only if not the same (to speed up bootprocess - no depmod)
	if [ ! -f /etc/modprobe.d/net.${iface}.conf ] ||
		[[ ${iface} != $(cat /etc/modprobe.d/net.${iface}.conf | cut -d' ' -f2) ]]
	then
		CONFIG=/etc/modprobe.d/net.${iface}.conf
		clearconfig
		addconfig "alias ${iface} ${ALX_MODULE}"
	fi

	# update confd-networking default iface
	[ ! -d ${SETTINGSPATH} ] && install -d ${SETTINGSPATH}
	CONFIG=${SETTINGSPATH}/confd-networking
	clearconfig
	addconfig "${iface}"

	# hostname && hosts
	CONFIG=/etc/hostname
	clearconfig
	addconfig "${ALX_HOSTNAME}"
	CONFIG=/etc/hosts
	clearconfig
	addconfig -e "127.0.0.1\tlocalhost.${ALX_DOMAIN}\tlocalhost\t${ALX_HOSTNAME}"
	case ${ALX_NETWORKING} in
		static|STATIC)
			# add hostname with valid ip to hosts
			addconfig -e "${ALX_IP}\t${ALX_HOSTNAME}.${ALX_DOMAIN}\t${ALX_HOSTNAME}"
			;;
	esac

	# network devices

	# always on boot
	CONFIG=/etc/conf.d/net.${iface}
	clearconfig

	addconfig 'ONBOOT="yes"'
	addconfig "NETWORKING=\"${ALX_NETWORKING}\""
	case ${ALX_NETWORKING} in
		dhcp|DHCP)
			addconfig 'DHCP_PROG="/sbin/udhcpc"'
			addconfig 'DHCP_STOP=""'
			#timeout after 10 seconds
			addconfig 'DHCP_START="-t 10"'
			;;

		static|STATIC)
			addconfig "IP=\"${ALX_IP}\""
			addconfig "NETMASK=\"${ALX_NETMASK}\""
			addconfig "BROADCAST=\"${ALX_BROADCAST}\""
			;;
	esac

	# force mac address override
	if [[ ${ALX_FORCEMACTO} != NULL ]]
	then
		addconfig "FORCE_MAC_TO=\"${ALX_FORCEMACTO}\""
	fi

	# wireless extensions
	local value
	local var
	for var in ALX_WIRELESS_BITRATE \
		ALX_WIRELESS_CHANNEL \
		ALX_WIRELESS_ESSID \
		ALX_WIRELESS_FREQUENCY \
		ALX_WIRELESS_MODE \
		ALX_WIRELESS_NICK \
		ALX_WIRELESS_AUTH_MODE \
		ALX_WIRELESS_KEY_LENGTH \
		ALX_WIRELESS_KEY \
		ALX_WIRELESS_KEY_ASCII
	do
		# get the value of $var
		eval value=\$$(echo ${var})

		# write it only if not empty
		if [[ -n ${value} ]] && [[ ${value} != NULL ]]
		then
			# remove ALX_ from var
			addconfig "${var/ALX_/}=\"${value}\""
		fi

		# clear value
		unset value
	done

	# FIXME !!!
	# setup wpa-driver (only zydas atm)
	if [[ ${ALX_MODULE} = zd1211 ]]
	then
		addconfig "WIRELESS_WPA_DRIVER=zydas"
	fi

	CONFIG=/etc/conf.d/net.routes
	clearconfig
	# gateway or gateway overrides
	if [[ ${ALX_GATEWAY} != NULL ]]
	then
		addconfig "default gw ${ALX_GATEWAY}"
	fi

	CONFIG=/etc/resolv.conf
	clearconfig
	# nameserver or nameserver overrides
	if [[ ${ALX_DNS} != NULL ]]
	then
		addconfig "nameserver ${ALX_DNS}"
	fi

	# unset all vars
	unset ALX_HOSTNAME
	unset ALX_MODULE
	unset ALX_DOMAIN
	unset ALX_NETWORKING
	unset ALX_IP
	unset ALX_NETMASK
	unset ALX_DNS
	unset ALX_GATEWAY
	unset ALX_BROADCAST
	unset ALX_FORCEMACTO
	unset ALX_IFACE
	unset ALX_WIRELESS_BITRATE
	unset ALX_WIRELESS_CHANNEL
	unset ALX_WIRELESS_ESSID
	unset ALX_WIRELESS_FREQUENCY
	unset ALX_WIRELESS_MODE
	unset ALX_WIRELESS_NICK
	unset ALX_WIRELESS_AUTH_MODE
	unset ALX_WIRELESS_KEY_LENGTH
	unset ALX_WIRELESS_KEY
	unset ALX_WIRELESS_KEY_ASCII
}