#!/bin/bash
# $Id: testconnec,v 1.18 2005/01/16 22:08:17 Tux Exp $

# Copyright (C) 2003-2005 Olivier Borowski
# 
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

# Goal :
#	use ping to ensure that the connection is valid
# Params :
#	h = display help
#	d = debug level (0=none, 1=syslog, 2=stdout)
#	l = list of tested ip (ex: "213.228.0.42 216.239.37.99")

# the following line will be replaced by the absolute path of setvars
. /etc/eagle-usb/setvars

set -- "${@//#--help/-h}"
set -- "${@//#--iplist=/-l}"
set -- "${@//#--debug=/-d}"
evalParams() {
	while getopts "hl:d:" opt; do
		case $opt in
			h  )	echo -e $TESTCONNEC_USAGE_MSG ; exit 0 ;;
			l  )	TESTIP="$OPTARG" ;;
			d  )	DEBUG=$OPTARG ;;
			\? )	echo -e $TESTCONNEC_USAGE_MSG ; exit 1 ;;
		esac
	done
}
DEBUG=0
TESTIP="213.228.0.42 216.239.37.99"
evalParams "$@"
TESTCONNEC_LOCK=/var/run/LCK.eagletestconnec
TESTCONNEC_CPT=/var/tmp/eagletestconnec.cpt

# testconnec is only enabled when $SYSCONF_FILE exists
if [ ! -e $SYSCONF_FILE ] ; then
	echo_log "====== testconnec : off, nothing to do... ======"
	exit 0
fi

# eagleconfig has never been run => quit
if [ -f $EU_DIR/eagle-usb_must_be_configured ] ; then
	echo_log "$TESTCONNEC_INSTALL_LOCK_MSG" 1
	exit 1
fi

# testconnec already launched => quit
if [ -e $TESTCONNEC_LOCK ] ; then
	echo_log "$TESTCONNEC_ALREADY_LAUNCHED_MSG" 1
	exit 1
fi

# prevent this script from being launch 2 times simultaneously
echo_log "====== testconnec : begin ======"
touch $TESTCONNEC_LOCK
trap 'echo_log "====== testconnec : end ======" ; rm -f $TESTCONNEC_LOCK' EXIT

# modem crashed when booting?
SEND_DSP=0
if $EAGLESTAT | grep -q "${BOOTING_STR}" ; then
	sleep 5s
	# still booting after 5s => crashed
	if $EAGLESTAT | grep -q "${BOOTING_STR}" ; then
		SEND_DSP=1
	fi
fi

# fctStartAdsl already failed 5 times? => launch eaglectrl -w
# $CPT_FAILED is only incremented when the modem is plugged
if [ -f $TESTCONNEC_CPT ] ; then
	CPT_FAILED=`cat $TESTCONNEC_CPT`
else
	CPT_FAILED=0
fi
[ $CPT_FAILED -ge 5 ] && SEND_DSP=1

# run eaglectrl -w ?
if [ $SEND_DSP -eq 1 ] ; then
	
	echo_log "$TESTCONNEC_REBOOT_MSG"
	fctStopAdsl
	$EAGLECTRL -w 1>/dev/null 2>/dev/null
	if [ $? -ne 0 ] ; then
		echo_log "Impossible de réinitialiser le modem!"
		exit 1
	fi
	# modem has been rebooted, reset counter
	CPT_FAILED=0
	# now the modem should be operationnal but we need to launch startadsl
	OK="no"

else
	
	# quit if the modem is not operational
	RES="`$EAGLESTAT | grep "$OPER_STR"`"
	if [ -z "$RES" ] ; then
		echo_log "$TESTCONNEC_NO_MODEM_MSG"
		exit 0
	fi
	
	declare -i CPT
	CPT=0
	OK="no"
	for i in $TESTIP; do
		ping_w $i 5
		if [ $? -eq 0 ]; then
			OK="$i"
			break 1
		fi
		CPT=$(($CPT+1))
	done
fi

if [ "$OK" = "no" ] ; then
	echo_log "$TESTCONNEC_CONNECTION_LOST_MSG ($CPT_FAILED)"
	fctStopAdsl
	sleep 2
	fctStartAdsl &
	CPT_FAILED=`expr $CPT_FAILED + 1`
else
	echo_log "$TESTCONNEC_CONNECTION_OK_MSG ($CPT)"
	CPT_FAILED=0
fi
echo $CPT_FAILED > $TESTCONNEC_CPT
exit 0

#***************************************************************************
# $Log: testconnec,v $
# Revision 1.18  2005/01/16 22:08:17  Tux
# - add license header
#
# Revision 1.17  2004/11/23 21:12:46  Tux
# - counter was never reinitialized
#
# Revision 1.16  2004/11/21 17:01:07  mcoolive
# - simplification ( use break in for i in $IP )
#
# Revision 1.15  2004/11/21 15:32:18  Tux
# - replaced == with -eq
# - modem is now rebooted when fctStartAdsl fail 4 times
#
# Revision 1.14  2004/11/11 16:21:26  mcoolive
# - renaming $EU_SCRIPT_DIR/lock in $EU_DIR/eagle-usb_must_be_configured
#
# Revision 1.13  2004/09/28 10:27:19  mcoolive
# - (POSIX) commands are typed "int main..." => replace "$? ==" by "$? -eq"
#
# Revision 1.12  2004/09/26 19:39:34  Tux
# - improved lock file management
# - better log messages
# - localization
#
# Revision 1.11  2004/08/26 21:43:11  Tux
# *** empty log message ***
#
# Revision 1.10  2004/08/19 23:00:48  mcoolive
# - use $SYSCONF_FILE instead of its potential values
#
# Revision 1.9  2004/07/17 15:41:48  Tux
# - forgot to update parameters
# - removed chmod on the lock file
#
# Revision 1.8  2004/07/16 21:14:21  Tux
# - simplify parameters processing
#
# Revision 1.7  2004/07/15 20:26:55  Tux
# - check for /var/lock/eagle-usb too
#
# Revision 1.6  2004/03/23 20:16:44  Tux
# - slackware support
#
# Revision 1.5  2004/03/22 21:25:00  Tux
# - removed old $START_ON_BOOT check
#
# Revision 1.4  2004/03/22 21:23:20  Tux
# - testconnec now exit if internet service is not started
#
#***************************************************************************/