--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/brand/common.ksh	Tue Sep 23 07:41:08 2008 -0600
@@ -0,0 +1,128 @@
+#
+# 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
+# and limitations under the License.
+#
+# 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
+# information: Portions Copyright [yyyy] [name of copyright owner]
+#
+# CDDL HEADER END
+#
+#
+# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+# Use is subject to license terms.
+#
+
+ZONE_SUBPROC_OK=0
+ZONE_SUBPROC_USAGE=253
+ZONE_SUBPROC_INCOMPLETE=254
+ZONE_SUBPROC_FATAL=255
+
+PROP_PARENT="org.opensolaris.libbe:parentbe"
+PROP_ACTIVE="org.opensolaris.libbe:active"
+
+f_zfs_in_root=$(gettext "Installing a zone in the ROOT pool is unsupported.")
+f_zfs_create=$(gettext "Unable to create the zone's ZFS dataset.")
+f_root_create=$(gettext "Unable to create the zone's ZFS dataset mountpoint.")
+f_no_gzbe=$(gettext "Error: unable to determine global zone boot environment.")
+f_no_ds=$(gettext "Error: no zonepath dataset.")
+f_multiple_ds=$(gettext "Error: multiple active datasets.")
+f_no_active_ds=$(gettext "Error: no active dataset.")
+f_zfs_mount=$(gettext "Unable to mount the zone's ZFS dataset.")
+
+fail_incomplete() {
+	print "$1"
+	exit $ZONE_SUBPROC_INCOMPLETE
+}
+
+fail_fatal() {
+	print "$1"
+	exit $ZONE_SUBPROC_FATAL
+}
+
+fail_usage() {
+	print "Usage: $1"
+	exit $ZONE_SUBPROC_USAGE
+}
+
+get_current_gzbe() {
+	#
+	# If there is no beadm command then the system doesn't really
+	# support multiple boot environments.  We still want zones to work,
+	# so simulate the existence of a single boot environment.
+	#
+	if [ -x /usr/sbin/beadm ]; then
+		CURRENT_GZBE=`/usr/sbin/beadm list -H | /usr/bin/nawk -F\; '{
+			# Field 3 is the BE status.  'N' is the active BE.
+			if ($3 ~ "N")
+				# Field 2 is the BE UUID
+				print $2
+		}'`
+	else
+		CURRENT_GZBE="opensolaris"
+	fi
+
+	if [ -z "$CURRENT_GZBE" ]; then
+		fail_fatal "$f_no_gzbe"
+	fi
+}
+
+# Find the dataset mounted on the zonepath.
+get_zonepath_ds() {
+	ZONEPATH_DS=`/usr/sbin/zfs list -H -t filesystem -o name,mountpoint | \
+	    /usr/bin/nawk -v zonepath=$1 '{
+		if ($2 == zonepath)
+			print $1
+	}'`
+
+	if [ -z "$ZONEPATH_DS" ]; then
+		fail_fatal "$f_no_ds"
+	fi
+}
+
+# Find the active dataset under the zonepath dataset to mount on zonepath/root.
+# $1 CURRENT_GZBE
+# $2 ZONEPATH_DS
+get_active_ds() {
+	ACTIVE_DS=`/usr/sbin/zfs list -H -r -t filesystem \
+	    -o name,$PROP_PARENT,$PROP_ACTIVE $2/ROOT | \
+	    /usr/bin/nawk -v gzbe=$1 ' {
+		if ($1 ~ /ROOT\/[^\/]+$/ && $2 == gzbe && $3 == "on") {
+			print $1
+			if (found == 1)
+				exit 1
+			found = 1
+		}
+	    }'`
+
+	if [ $? -ne 0 ]; then
+		fail_fatal "$f_multiple_ds"
+	fi
+
+	if [ -z "$ACTIVE_DS" ]; then
+		fail_fatal "$f_no_active_ds"
+	fi
+}
+
+# Check that zone is not in the ROOT dataset.
+fail_zonepath_in_rootds() {
+	case $1 in
+		rpool/ROOT/*)
+			fail_fatal "$f_zfs_in_root"
+			break;
+			;;
+		*)
+			break;
+			;;
+	esac
+}