#!/bin/sh##################################################################################################	Script: hso_connect.sh#	Purpose:Bring the interface up and down, send the needed AT commands to connect################################################################################################## checking for rootUSERID=`id -u`if [ "$USERID" != "0" ]then	echo "Need root permissions to run this script"	exitfi# always start with checking if a connection data file has been suppliedCONNECTIONFILE="conninfo.ini"if [ -z "$2" ]then	if [ ! -f $CONNECTIONFILE ]	then		echo "# this file contains the connection information for your subscription" >> $CONNECTIONFILE		echo "APN=internet.proximus.be" >> $CONNECTIONFILE		echo "# USER=" >> $CONNECTIONFILE		echo "# PASS=" >> $CONNECTIONFILE		echo "# PIN=" >> $CONNECTIONFILE	fielse	if [ -f $2 ]	then		CONNECTIONFILE=$2	else		echo "Supplied file $2 does not exist"		exit 1	fifiTTYS=`find /sys/class/tty -name "ttyHS*"`APP_PORT=""for i in $TTYS; do    if [ `grep Application $i/hsotype` ]    then	APP_PORT=$i	break    fidoneDEVICE=/dev/`echo $APP_PORT | cut -d/ -f5`echo Using $DEVICE application port.NETDEV=hso0TMPFIL=/tmp/connect.$$OUTPUTFILE=/tmp/output.$$SCRIPTFILE=/tmp/scriptfile.$$##################################################################################################	METHOD:	Connect#	PURPOSE:Connect to the specified APN with the specified user and pass and get the ip#		set the IP to the interface#################################################################################################Connect(){	echo "Initializing..."	#============================================================	# get the APN, USER, PASS and PIN out of the connection file	#============================================================	APN=`grep '^APN=' $CONNECTIONFILE | cut -d= -f2`	USER=`grep '^USER=' $CONNECTIONFILE | cut -d= -f2`	PASS=`grep '^PASS=' $CONNECTIONFILE | cut -d= -f2`	PIN=`grep '^PIN=' $CONNECTIONFILE | cut -d= -f2`	if [ -z "$APN" ]	then		echo "Please provide an APN (eg web.pro.be)"		exit	fi	#============================================================	# send the PIN, APN, USER and PASS	#============================================================	rm -f $SCRIPTFILE	echo "ABORT ERROR" > $SCRIPTFILE	echo "TIMEOUT 10" >> $SCRIPTFILE	echo "\"\" ATZ" >> $SCRIPTFILE	if [ -n "$PIN" ]	then		echo "OK \"AT+CPIN=\\\"$PIN\\\"^m\"" >> $SCRIPTFILE	fi	echo "OK \"AT+COPS=0^m\"" >> $SCRIPTFILE	echo "OK \"\d\d\d\d\d\d\dAT+COPS=?^m\"" >> $SCRIPTFILE	echo "OK \"AT+CGDCONT=1,\\\"IP\\\",\\\"$APN\\\"^m\"" >> $SCRIPTFILE 	if [ -n "$USER" -a -n "$PASS" ]	then		echo "OK \"AT\$QCPDPP=1,1,\\\"$PASS\\\",\\\"$USER\\\"^m\"" >> $SCRIPTFILE	fi	echo "OK \"\"" >> $SCRIPTFILE	#============================================================	# run the script	#============================================================	echo "Trying $APN ..."	rm -f $OUTPUTFILE	( /usr/sbin/chat -E -s -V -f $SCRIPTFILE <$DEVICE >$DEVICE ) 2> $OUTPUTFILE	ISERROR="`grep '^ERROR' $OUTPUTFILE`"	if [ -n "$ISERROR" ]	then		echo "Failed to initialize connection"		cat $OUTPUTFILE		echo " "		rm -f $OUTPUTFILE		exit	fi	ISERROR="`grep '^+CME' $OUTPUTFILE`"	if [ -n "$ISERROR" ]	then		echo "Failed to initialize connection"		cat $OUTPUTFILE		echo " "		rm -f $OUTPUTFILE		exit	fi	rm -f $SCRIPTFILE	sleep 2	#============================================================	# now actually connect	#============================================================	echo "Connecting..."	stty 19200 -tostop	# make the call script	echo "ABORT ERROR" > $SCRIPTFILE	echo "TIMEOUT 10" >> $SCRIPTFILE	echo "\"\" ATZ" >> $SCRIPTFILE	echo "OK \"AT_OWANCALL=1,1,0^m\"" >> $SCRIPTFILE	echo "OK \"\d\d\d\d\dAT_OWANDATA=1^m\"" >> $SCRIPTFILE	echo "OK \"\"" >> $SCRIPTFILE		PIP=""	COUNTER=""	while [ -z "$PIP" -a "$COUNTER" != "-----" ]	do		echo "trying$COUNTER"		sleep 2		rm -f $OUTPUTFILE		( /usr/sbin/chat -E -s -V -f $SCRIPTFILE <$DEVICE > $DEVICE ) 2> $OUTPUTFILE		ISERROR=`grep '^ERROR' $OUTPUTFILE`		if [ -z "$ISERROR" ]		then			PIP="`grep '^_OWANDATA' $OUTPUTFILE | cut -d, -f2`"			NS1="`grep '^_OWANDATA' $OUTPUTFILE | cut -d, -f4`"			NS2="`grep '^_OWANDATA' $OUTPUTFILE | cut -d, -f5`"		fi		COUNTER="${COUNTER}-"	done	echo Connected	#============================================================	# always check the IP address	#============================================================	if [ -z "$PIP" ]	then		echo "We did not get an IP address from the provider, bailing ..."		cat $OUTPUTFILE		rm -f $OUTPUTFILE		exit	fi	rm -f $OUTPUTFILE	#============================================================	# setting network settings	#============================================================	echo "Setting IP address to $PIP"	ifconfig $NETDEV $PIP netmask 255.255.255.255 up	echo "Adding route"	route add default dev $NETDEV	mv -f /etc/resolv.conf /tmp/resolv.conf.hso	echo "Setting nameserver"	echo "nameserver	$NS1" > $OUTPUTFILE	echo "nameserver	$NS2" >> $OUTPUTFILE	mv $OUTPUTFILE /etc/resolv.conf	echo "Done."}##################################################################################################	METHOD:	Disconnect#	PURPOSE:disconnect from the providers network#################################################################################################Disconnect(){	echo "Bringing interface down..."	ifconfig $NETDEV down	echo "Disconnecting..."	# make the disconnect script	rm -f $SCRIPTFILE	echo "TIMEOUT 10" >> $SCRIPTFILE	echo "ABORT ERROR" >> $SCRIPTFILE	echo "\"\" ATZ" >> $SCRIPTFILE	echo "OK \"AT_OWANCALL=1,0,0^m\"" >> $SCRIPTFILE	echo "OK \"\"" >> $SCRIPTFILE	#============================================================	# run the script	#============================================================	/usr/sbin/chat -V -f $SCRIPTFILE <$DEVICE >$DEVICE 2> /dev/null	if [ -f /tmp/resolv.conf.hso ]	then		echo "Reset nameserver..."		mv -f /tmp/resolv.conf.hso /etc/resolv.conf	fi	echo "Done."}##################################################################################################	METHOD:	usage#	PURPOSE:#################################################################################################usage(){	echo Usage: $0 \(up\|down\|restart\)}################################################################################################## Choose your action#################################################################################################case "$1" in	up)		Connect		;;	down)		Disconnect		;;	restart)		Disconnect		Connect		;;	*)		usage		;;esac