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#!/bin/sh
# $KAME: prefix.sh,v 1.12 2001/05/26 23:38:10 itojun Exp $
# $FreeBSD$
# Copyright (c) 2001 WIDE Project. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. Neither the name of the project nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
iface=$1
prefix=$2
usage() {
echo "usage: prefix interface prefix [set|delete]"
}
# We're now invalidating the prefix ioctls and the corresponding command.
echo "** The prefix command is almost invalidated. Please use ifconfig(8). **"
if [ X"$iface" = X -o X"$prefix" = X ]; then
usage
exit 1
fi
if [ -z $3 ]; then
command=set
else
command=$3
fi
case $command in
set)
laddr=`ifconfig $iface inet6 | grep 'inet6 fe80:' | head -1 | awk '{print $2}'`
if [ X"$laddr" = X ]; then
echo "prefix: no interface ID found"
exit 1
fi
hostid=`echo $laddr | sed -e 's/^fe80:[0-9a-fA-F]*:/fe80::/' -e 's/^fe80:://' -e 's/%.*//'`
address=$2$hostid
exec ifconfig $iface inet6 $address prefixlen 64 alias
;;
delete)
addrs=`ifconfig $iface inet6 | grep "inet6 $prefix" | awk '{print $2}'`
for a in $addrs; do
ifconfig $iface inet6 $a -alias
done
;;
*)
usage
exit 1
;;
esac
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