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#!/bin/sh
#
# Setup address label from /etc/gai.conf
#
# Written by YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>, 2010.
#
IP=ip
DEFAULT_GAICONF=/etc/gai.conf
verbose=
debug=
function run ()
{
if [ x"$verbose" != x"" ]; then
echo "$@"
fi
if [ x"$debug" = x"" ]; then
"$@"
fi
}
function do_load_config ()
{
file=$1; shift
flush=1
cat $file | while read command prefix label; do
if [ x"$command" = x"#label" ]; then
if [ ${flush} = 1 ]; then
run ${IP} -6 addrlabel flush
flush=0
fi
run ${IP} -6 addrlabel add prefix $prefix label $label
fi
done
}
function do_list_config ()
{
${IP} -6 addrlabel list | while read p pfx l lbl; do
echo label ${pfx} ${lbl}
done
}
function help ()
{
echo "Usage: $0 [-v] {--list | --config [ ${DEFAULT_GAICONF} ] | --default}"
exit 1
}
TEMP=`getopt -o c::dlv -l config::,default,list,verbose -n gaiconf -- "$@"`
if [ $? != 0 ]; then
echo "Terminating..." >&2
exit 1
fi
TEMPFILE=`mktemp`
eval set -- "$TEMP"
while true ; do
case "$1" in
-c|--config)
if [ x"$cmd" != x"" ]; then
help
fi
case "$2" in
"") gai_conf="${DEFAULT_GAICONF}"
shift 2
;;
*) gai_conf="$2"
shift 2
esac
cmd=config
;;
-d|--default)
if [ x"$cmd" != x"" ]; then
help
fi
gai_conf=${TEMPFILE}
cmd=config
;;
-l|--list)
if [ x"$cmd" != x"" ]; then
help
fi
cmd=list
shift
;;
-v)
verbose=1
shift
;;
--)
shift;
break
;;
*)
echo "Internal error!" >&2
exit 1
;;
esac
done
case "$cmd" in
config)
if [ x"$gai_conf" = x"${TEMPFILE}" ]; then
sed -e 's/^[[:space:]]*//' <<END_OF_DEFAULT >${TEMPFILE}
label ::1/128 0
label ::/0 1
label 2002::/16 2
label ::/96 3
label ::ffff:0:0/96 4
label fec0::/10 5
label fc00::/7 6
label 2001:0::/32 7
END_OF_DEFAULT
fi
do_load_config "$gai_conf"
;;
list)
do_list_config
;;
*)
help
;;
esac
rm -f "${TEMPFILE}"
exit 0
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