#!/bin/sh
#
#    tnldown - tunnel configuration script
#    Copyright (C) 1999, 2000  Arkadiusz Mikiewicz <misiek@pld.org.pl>
#
#    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
#
#    $Id: tnldown,v 1.18 2001/05/16 13:12:07 baggins Exp $
#

. /etc/sysconfig/network
. /etc/rc.d/init.d/functions
. /etc/sysconfig/network-scripts/.functions

DEV=$1

[ -z "$DEV" ] && {
    nls "Usage: %s <device name>" "tnldown" >&2
    exit 1
}

TNLCONFIGS=$(ls /etc/sysconfig/interfaces/tnlcfg-*|egrep -v '~$')
TNLCONFIGS=$(egrep -L '^#!' $TNLCONFIGS)
CONFIG=$(egrep -l "^DEVICE=[\"\']*$DEV[\"\']*\$" $TNLCONFIGS)

if [ -z "$CONFIG" ]; then
    CONFIG="$DEV"
fi

if false; then
[ -f "/etc/sysconfig/interfaces/$CONFIG" ] || CONFIG=tnlcfg-$CONFIG
[ -f "/etc/sysconfig/interfaces/$CONFIG" ] || {
    echo "usage: tnldown <device name>" >&2
    exit 1
}
fi

source_config

case "${MODE}" in
        sit|four)
                is_no "${IPV6_NETWORKING}" && exit 0
                is_no "${IPV6_TUNNELCONFIG}" && exit 0
		;;
        ipip)
                is_no "${IPV4_NETWORKING}" && exit 0
                ;;
        gre)
                is_no "${IPV4_NETWORKING}" && exit 0
                ;;
	ipxip|ipipx)
		is_no "${IPX}" && exit 0
		;;
esac

RESULT=0

case "${MODE}" in
	ipip|sit|gre)
		ip link set ${DEVICE} down
		ip tunnel del ${DEVICE}
		RESULT=$?
		;;
	four)
		ip link set ${DEVICE} down
		fourcfg del ${DEVICE}
		RESULT=$?
		;;
	ipxip|ipipx)
		;;
esac

exit $RESULT

# This must be last line !
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