# $Header: /home/cvsd/alx-cvs/alx-src/tinyalxconfig-ng/functions/config_network.sh,v 1.4 2008-06-04 18:22:41 niro Exp $
# configures networkin 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}'")
}

check_network_settings()
{
	# sanity checks
	[[ ${ALX_IFACE} = NULL ]] && return 1
	[[ ${ALX_HOSTNAME} = NULL ]] && return 1
	[[ ${ALX_NETWORKING} = NULL ]] && return 1

	# if we get here, everything is ok
	return 0
}

config_networking()
{
	local iface

	# first of all get the vars
	get_network_settings
	if ! check_network_settings
	then
		echo -e "${COLYELLOW}Could not retrieve network settings, doing nothing ...${COLDEFAULT}"
		return 1
	fi

	# 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/modules.d -type f -name 'net.*' | xargs rm

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

	# update confd-networking default iface
	[ ! -d ${SETTINGSPATH} ] && install -d ${SETTINGSPATH}
	echo "${iface}" > ${SETTINGSPATH}/confd-networking

	# hostname && hosts
	echo "${ALX_HOSTNAME}" > /etc/hostname
	echo -e "127.0.0.1\tlocalhost.${ALX_DOMAIN}\tlocalhost\t${ALX_HOSTNAME}" > /etc/hosts

	# network devices

	# always on boot
	echo 'ONBOOT="yes"' > /etc/conf.d/net.${iface}
	echo "NETWORKING=\"${ALX_NETWORKING}\"" >> /etc/conf.d/net.${iface}

	case ${ALX_NETWORKING} in
		dhcp|DHCP)
			echo 'DHCP_PROG="/sbin/udhcpc"' >> /etc/conf.d/net.${iface}
			# timeout after 10 seconds and quit after retrieving a lease
			echo 'DHCP_START="-t 10 -q"' >> /etc/conf.d/net.${iface}
			;;

		static|STATIC)
			# add hostname with valid ip to hosts
			echo -e "${ALX_IP}\t${ALX_HOSTNAME}.${ALX_DOMAIN}\t${ALX_HOSTNAME}" >> /etc/hosts
			echo "IP=\"${ALX_IP}\"" >> /etc/conf.d/net.${iface}
			echo "NETMASK=\"${ALX_NETMASK}\"" >> /etc/conf.d/net.${iface}
			echo "BROADCAST=\"${ALX_BROADCAST}\"" >> /etc/conf.d/net.${iface}
			;;
	esac

	# gateway or gateway overrides
	if [[ ${ALX_GATEWAY} != NULL ]]
	then
		echo "GATEWAY=\"${ALX_GATEWAY}\"" >> /etc/conf.d/net.${iface}
		echo "GATEWAY_IF=\"${iface}\"" >> /etc/conf.d/net.${iface}
	fi

	# force mac address override
	if [[ ${ALX_FORCEMACTO} != NULL ]]
	then
		echo "FORCE_MAC_TO=\"${ALX_FORCEMACTO}\"" >> /etc/conf.d/net.${iface}
	fi

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

	# setup smb.conf (little sed magic:)
	# first get smb version !
	local smbconf
	[[ $(smbd --version | cut -d' ' -f2) > 2.999 ]] && smbconf=smb3.conf || smbconf=smb.conf

	cat ${ALX_SKELETONS}/samba/${smbconf} > /etc/samba/smb.conf
	sed -i -e "s:\(workgroup = \).*:\1${ALX_DOMAIN}:" /etc/samba/smb.conf

	# 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} ]] && [[ ${value} != NULL ]]
		then
			# remove ALX_ from var
			echo "${var/ALX_/}=\"${value}\"" >> /etc/conf.d/net.${iface}
		fi

		# clear value
		unset value
	done

	# setup wpa-driver (only zydas atm)
	[[ ${ALX_MODULE} = zd1211 ]] && \
		echo "WIRELESS_WPA_DRIVER=zydas" >> /etc/conf.d/net.${iface}

	# 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
}