#!/bin/sh

# check if wireless-tools/ ifrename is patched to wait until devices are up
#if grep -q 'Waiting up to ${seconds} s until lan device(s) are up for renaming...' /etc/init.d/ifrename ; then
	LAN=$(tail +3 /proc/net/dev|awk -F: '{print $1}'|sed "s/\s*//"|grep -v -e ^lo -e ^vmnet|sort)
	WLAN=$(tail +3 /proc/net/wireless|awk -F: '{print $1}'|sort)
	
	if [ -x /etc/init.d/ifrename ]; then
		change=change$RANDOM
		lancount=0
		wirelesscount=0
		rm -f /etc/iftab /etc/udev/networkfix.rules /etc/udev/rules.d/010_networkfix.rules

		LC_ALL= LC_CTYPE= LC_MESSAGES= LANG= ifconfig -a|grep Ethernet|awk '/HWaddr/{print $1" "$5}'|grep -v 00:00:00:00:00:00|while read dev mac; do
			driver=$(ethtool -i $dev 2>/dev/null|awk '/^driver:/{print $2}')
		
			if [ "$driver" != "hostap" -a "$driver" != "ath_pci" -a "$driver" != "ndiswrapper" -a "${dev/vmnet*}" -a "${dev/ath*}" ]; then
				iswlan=$(echo $dev $WLAN|tr ' ' '\n'|sort|uniq -d)
			
				if [ "$iswlan" ]; then
					devnew=wireless$wirelesscount
					((wirelesscount++))
				else
					devnew=lan$lancount
					((lancount++))
				fi
				
				if [ "$driver" ]; then
					echo $devnew mac $mac driver $driver
				else
					echo $devnew mac $mac
				fi
			
				for f in /etc/network/interfaces /etc/ppp/ppp_on_boot /etc/ppp/peers/*; do
					if grep -qs $dev $f; then
						perl -pi -e "s|$dev|$change|g"    "$f"
						perl -pi -e "s|$devnew|$dev|g"    "$f"
						perl -pi -e "s|$change|$devnew|g" "$f"
					fi
				done
			
				mv -f /etc/network/wep.$dev    /etc/network/wep.$change 2>/dev/null
				mv -f /etc/network/wep.$devnew /etc/network/wep.$dev    2>/dev/null
				mv -f /etc/network/wep.$change /etc/network/wep.$devnew 2>/dev/null
			fi
		done > /etc/iftab
		
		firewirecount=0
		for dev in $LAN; do
			if [ "$(ethtool -i $dev 2>/dev/null|awk '/^bus-info:/{print $2}')" == "ieee1394" ]; then
				devnew=firewire$firewirecount
				echo $devnew driver $(ethtool -i $dev 2>/dev/null|awk '/^driver:/{print $2}')
				perl -pi -e "s|$dev|$change|g"    /etc/network/interfaces
				perl -pi -e "s|$devnew|$dev|g"    /etc/network/interfaces
				perl -pi -e "s|$change|$devnew|g" /etc/network/interfaces
				((firewirecount++))
			fi
		done >> /etc/iftab
	
		[ -x /usr/sbin/unfreeze-rc.d ] && /usr/sbin/unfreeze-rc.d
		update-rc.d -f ifrename remove    &>/dev/null
		update-rc.d ifrename start 40 S . &>/dev/null
		[ -x /usr/sbin/freeze-rc.d ]   && /usr/sbin/freeze-rc.d
#	fi
else
	# fallback if ifrename isn't available
	rm -f /etc/udev/networkfix.rules /etc/udev/rules.d/010_networkfix.rules
	for i in $(ls -1 /sys/class/net/ | grep -vE '^sit[0-9].*|^lo|^ppp[0-9].*'); do
		echo KERNEL=\"\*\", $(udevinfo -a -p /sys/class/net/$i | awk '/SYSFS{address}/'), NAME=\"$i\" >> /etc/udev/networkfix.rules
	done
	
	[ -x /usr/sbin/unfreeze-rc.d ] && /usr/sbin/unfreeze-rc.d
	update-rc.d -f ifrename remove &>/dev/null
	[ -x /usr/sbin/freeze-rc.d ]   && /usr/sbin/freeze-rc.d
	
	ln -s ../networkfix.rules /etc/udev/rules.d/010_networkfix.rules
fi