#!/bin/sh # # ULA Generator # SUZUKI, Shinsuke # based on Holger Zuleger's script # @(#) generate-uniq-local-ipv6-unicast-addr.sh # (c) Sep 2004 Holger Zuleger # # Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, and 2002 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. # # $Id: gen-ula.cgi,v 1.11 2013/05/20 22:43:57 suz Exp $ # # #site-specific parameters # #NTP server name ntpserv="clk.notemachi.wide.ad.jp" #ntpdate program ntpdate=/usr/sbin/ntpdate #the caller of this CGI script url="http://www.kame.net/~suz/gen-ula.html" #list of typical bogus lower 24-bits in MAC address typical_mac_list="010203 000000 000001 000102 123456" #SHA hash calculator sha=/usr/local/bin/sha #IEEE OUI Database (available at http::/standards.ieee.org/regauth/oui/oui.txt) ieeeoui=oui.txt # # main routine # #print-out header echo Content-type: text/html echo cat << EOH Generated ULA EOH #main routine #1. NTP-date date=`$ntpdate -dq $ntpserv 2> /dev/null | sed -n 's/^transmit timestamp: *\([^ ]*\) .*/\1/p' | tr -d "."` #2. EUI64 # obtains a MAC address # sed 's/\(.*\)=\(..:..:..:..:..:..\).*$/\2/' | mac=`echo $QUERY_STRING | sed 's/%3A/:/g' | tr '[:lower:]' '[:upper:]' | sed 's/\(.*\)=\(..:..:..:..:..:..\).*$/\2/'`; machex=`echo $mac | tr -d ':'` #length check len1=`echo $machex | wc -m` #character check len2=`echo $machex | tr -d [:xdigit:] | wc -m` if [ $len1 != 13 -o $len2 != 1 ]; then echo "

Error

" echo "

MAC-address $mac is invalid" echo "

Please take care of the following points:

" echo "go back to the previous page" exit fi # MAC Vendor check machexvendor=`echo $machex | cut -c1-6` macvendor=`grep "^ $machexvendor" $ieeeoui | cut -c23-` if [ -z "$macvendor" ]; then echo "

Error

" echo "

MAC-address $mac" echo "is not registered to IEEE

" echo "

Please use the REAL MAC address

" echo "go back to the previous page" exit fi # booby trap:-) machexid=`echo $machex | cut -c7-12` for i in $typical_mac_list; do if [ $machexid = $i ]; then echo "

Error

" echo "

MAC-address $mac" echo "is a typical non-existing MAC address that is frequently used when a user is reluctant to find his/her own MAC address:-)

" echo "

Please use the REAL MAC address

" echo "go back to the previous page" exit fi done # generates EUI64 from the MAC address first=`echo $machex | cut -c1-1` second=`echo $machex | cut -c2-2` macu=`echo $machex | cut -c3-6` macl=`echo $machex | cut -c7-12` # reversing u/l bit case $second in [13579BDF]) echo "

Error

" echo "

MAC-address = $mac is a group MAC address

" echo "go back to the previous page" exit ;; 0) second_rev=2 ;; 2) second_rev=0 ;; 4) second_rev=6; ;; 6) second_rev=4; ;; 8) second_rev=a; ;; A) second_rev=8; ;; C) second_rev=e; ;; E) second_rev=c; ;; *) #impossible echo "

Error

" echo "

MAC-address = $mac" echo "is registered to the IEEE database, but the first octet is regarded as invalid. (probably a bug in this script...) ($first$second)

" echo "go back to the previous page" exit esac eui64="${first}${second_rev}${macu}fffe${macl}" globalid=`echo $date$eui64 | ${sha} -1 | cut -c23-32` echo "
" echo "

" echo "Generated ULA=" echo fd${globalid} | sed "s|\(....\)\(....\)\(....\)|\1:\2:\3::/48|" echo "

" echo "" cat << TAIL go back to the previous page TAIL exit