DNS: Write name servers received from ISP to /var/run/dns{1,2}

[people/pmueller/ipfire-2.x.git] / src / ppp / ip-up

#!/bin/sh
###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2007  Michael Tremer & Christian Schmidt                      #
#                                                                             #
# 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 3 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, see <http://www.gnu.org/licenses/>.       #
#                                                                             #
###############################################################################

. /etc/sysconfig/rc
. $rc_functions

eval $(/usr/local/bin/readhash /var/ipfire/ppp/settings)

if [ "$TYPE" = "isdn" ]; then
	DNS1="${MS_DNS1}"
	DNS2="${MS_DNS2}"
fi

# Write DNS servers to configuration
echo "${DNS1}" > /var/run/dns1
echo "${DNS2}" > /var/run/dns2

echo -n "$1" > /var/ipfire/red/iface
echo -n "$4" > /var/ipfire/red/local-ipaddress
echo -n "$5" > /var/ipfire/red/remote-ipaddress
touch /var/ipfire/red/active

/sbin/ip route replace default via ${IPREMOTE} dev ppp0
run_subdir ${rc_base}/init.d/networking/red.up/

#Check if gateway has answerd to ping, if not replace with ping.ipfire.org
TEST=`/usr/bin/ping -c 2 $5 2>/dev/null | tail -2 | head -1 | cut -d"," -f2`;

grep -v -E "\<gateway\>" /etc/hosts > /tmp/hosts

if [ "$TEST" == " 2 received" ]; then
	#ping the ppp-gateway
	echo "$5	gateway" >> /tmp/hosts
else
	#no answer
	HOST=`host ping.ipfire.org`;
	FIRE=`echo $HOST | cut -d" " -f4`;
	CHK=`echo $HOST | cut -d" " -f3`;
	if [ "$CHK" == "address" ]; then
	    #use ping.ipfire.org
	    echo "$FIRE	gateway" >> /tmp/hosts
	else
	    #DNS lookup failed use direct ip
	    echo "81.3.27.38	gateway" >> /tmp/hosts
	fi
fi
mv /tmp/hosts /etc/hosts