1#!/bin/sh 2 3# $KAME: prefix.sh,v 1.12 2001/05/26 23:38:10 itojun Exp $ 4# $FreeBSD: src/usr.sbin/prefix/prefix.sh,v 1.1.2.1 2001/07/03 11:02:08 ume Exp $ 5# $DragonFly: src/usr.sbin/prefix/prefix.sh,v 1.2 2003/06/17 04:30:01 dillon Exp $ 6 7# Copyright (c) 2001 WIDE Project. All rights reserved. 8# 9# Redistribution and use in source and binary forms, with or without 10# modification, are permitted provided that the following conditions 11# are met: 12# 1. Redistributions of source code must retain the above copyright 13# notice, this list of conditions and the following disclaimer. 14# 2. Redistributions in binary form must reproduce the above copyright 15# notice, this list of conditions and the following disclaimer in the 16# documentation and/or other materials provided with the distribution. 17# 3. Neither the name of the project nor the names of its contributors 18# may be used to endorse or promote products derived from this software 19# without specific prior written permission. 20# 21# THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 22# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24# ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 25# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31# SUCH DAMAGE. 32 33iface=$1 34prefix=$2 35 36usage() { 37 echo "usage: prefix interface prefix [set|delete]" 38} 39 40# We're now invalidating the prefix ioctls and the corresponding command. 41echo "** The prefix command is almost invalidated. Please use ifconfig(8). **" 42 43if [ X"$iface" = X -o X"$prefix" = X ]; then 44 usage 45 exit 1 46fi 47 48if [ -z $3 ]; then 49 command=set 50else 51 command=$3 52fi 53 54case $command in 55 set) 56 laddr=`ifconfig $iface inet6 | grep 'inet6 fe80:' | head -1 | awk '{print $2}'` 57 if [ X"$laddr" = X ]; then 58 echo "prefix: no interface ID found" 59 exit 1 60 fi 61 hostid=`echo $laddr | sed -e 's/^fe80:[0-9a-fA-F]*:/fe80::/' -e 's/^fe80:://' -e 's/%.*//'` 62 address=$2$hostid 63 exec ifconfig $iface inet6 $address prefixlen 64 alias 64 ;; 65 delete) 66 addrs=`ifconfig $iface inet6 | grep "inet6 $prefix" | awk '{print $2}'` 67 for a in $addrs; do 68 ifconfig $iface inet6 $a -alias 69 done 70 ;; 71 *) 72 usage 73 exit 1 74 ;; 75esac 76