ipv6-tunnel

#!/bin/bash

set -o errexit
set -o xtrace

source /lib/svc/share/smf_include.sh || true

fatal () {
    echo "$@"
    exit 1
}

usage() {
    echo "$0 -c <configuration> {start | stop}"
}

while getopts "c:" options
do
    case $options in
        c ) CONFIG="${OPTARG}";;
        h ) usage;;
        * ) usage; exit 1;;
    esac
done

ACTION="${*:$OPTIND:1}"

echo "Config: $CONFIG"
echo "Action: $ACTION"

if [[ -f "$CONFIG" ]]
then
    source "$CONFIG"
else
    usage; exit 1
fi

if [[ -n ${PRE_HOOK} ]] && [[ -x ${PRE_HOOK} ]];
then
    ${PRE_HOOK} || fatal "Preconfiguration hook failed"
fi

method_start() {

    dladm create-iptun -t -T ipv4 -a local="${CLIENT_IPV4}" -a remote="${SERVER_IPV4}" ip0
    ipadm 'create-if' -t ip0
    ipadm create-addr -t -T addrconf ip0/v6l
    ipadm create-addr -t -T static -a "local=${CLIENT_IPV6}/64,remote=${SERVER_IPV6}" ip0/v6s
    ipadm create-addr -t -T static -a "${ROUTED_64%%::/64}:${HOST_ID}/64" lo0/v6g
    route add -inet6 default "${SERVER_IPV6}"

}

method_stop () {

    route delete -inet6 default "${SERVER_IPV6%%/64}"
    ipadm delete-addr lo0/v6g
    ipadm delete-addr ip0/v6s
    ipadm delete-addr ip0/v6l
    ipadm 'delete-if' ip0
    dladm delete-iptun ip0

}

case $ACTION in
    start) method_start;;
    stop) method_stop;;
esac