tsol/demo/clonebylabel.sh

#!/bin/sh
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
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#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
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# CDDL HEADER END
#
# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
#ident  "%Z%%M% %I% %E% SMI"
#
# clonebylabel
#
# This script installs zones by cloning a zfs snapshot.
# For each sensitivity label dominated by the clearance
# a zone is installed if necessary. If the zone name is
# not already defined in tnzonecfg, the user is prompted
# to provide a unique zone name.
#
# $1 is the label upper bound (clearance)
#
# $2 is the zone snaphot to clone for a new zone

ZONECFG=/etc/security/tsol/tnzonecfg
clearance=$1
image=$2

#
# Configure a zone
#

configure()
{
    config=/tmp/zfg.$$
    echo "create -F -t SUNWtsoldef" > $config
    echo "set zonepath=/zone/$zonename" >> $config
    echo "commit" >> $config
    /usr/sbin/zonecfg -z $zonename -f $config
    rm $config
}

#
# Clone a zone
#

clone()
{
        echo Cloning $zonename from $image ...
    found=`zoneadm -z $zonename list -p 2>/dev/null`
        if [ $found ]; then
        true
    else
        echo "$zonename is being configured."
        configure
        fi
        /usr/sbin/zfs clone $image zone/$zonename
    /usr/sbin/zoneadm -z $zonename attach -F
}

#
# Create missing zones for each label dominated by clearance
#

for label in `lslabels -h "$clearance"`; do
    zonename=`/bin/grep $label: $ZONECFG | cut -d ":" -f1`
    if [ $zonename ]; then
    state=`zoneadm -z $zonename list -p 2>/dev/null | cut -d ":" -f3`
    if [ $state ]; then
        if [ $state != configured ]; then
        echo $zonename is already installed.
        continue
        fi
    fi
    else
        zonelabel=`hextoalabel $label`
        echo Enter zone name for $zonelabel
        echo or RETURN to skip this label:
        read zonename
        if [ $zonename ]; then
            nz=`/bin/grep "^$zonename:" $ZONECFG | cut -d ":" -f1`
            if [ $nz ]; then
                echo $zonename is already used for another label.
            else
                echo "$zonename:$label:0::" >> $ZONECFG
            fi
        else
            echo Skipping zone for $zonelabel
            continue
        fi
    fi
    clone
done