#!/bin/sh
#
# WiFi Up/Down control script for elwix :)
#
# $Id: wifi_up.sh,v 1.1.1.1 2011/07/05 23:43:00 misho Exp $

DOWNSEC=5
UPSEC=30
CHKTIMEOUT=15
PROG="wifi_up"

rup()
{
	while [ `ifconfig $1 | awk '($1 == "status:") { printf("%s", $2); }'` = no ]; do
		logger -t $PROG "`date '+[ %Y-%m-%d %H:%M:%S ]'` Lost connection will be down $1 " \
			"for $DOWNSEC seconds"
		ifconfig $1 down
		[ -x /etc/sysctl.$1 ] && /etc/sysctl.$1
		sleep $DOWNSEC
		logger -t $PROG "`date '+[ %Y-%m-%d %H:%M:%S ]'` Up $1 and try to reconnect for " \
			"$UPSEC seconds timeout"
		ifconfig $1 up
		[ -x /etc/sysctl.$1 ] && /etc/sysctl.$1
		sleep $UPSEC
	done
}

# Main ...

if [ -z $1 ]; then
	echo "Syntax: $0 <interface>"
	echo
	exit 1
fi

echo ">>> elwix - WiFi interface $1 state logger"
while : ; do
	rup $1
	sleep $CHKTIMEOUT
done