#!/sbin/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
# 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]
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# CDDL HEADER END
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#
# Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

. /lib/svc/share/smf_include.sh

#
# In a shared-IP zone we need this service to be up, but all of the work
# it tries to do is irrelevant (and will actually lead to the service 
# failing if we try to do it), so just bail out. 
# In the global zone and exclusive-IP zones we proceed.
#
smf_configure_ip || exit $SMF_EXIT_OK

if [ -f /etc/hostname.lo0 ] || [ -f /etc/hostname6.lo0 ]; then
	echo "found /etc/hostname.lo0 or /etc/hostname6.lo0; "\
		    "using ifconfig to create lo0" > /dev/msglog
	# IPv4 loopback
	/sbin/ifconfig lo0 plumb 127.0.0.1 up

	# IPv6 loopback
	/sbin/ifconfig lo0 inet6 plumb ::1 up

	# Trusted Extensions shares the loopback interface with all zones
	if (smf_is_system_labeled); then
		if smf_is_globalzone; then
			/sbin/ifconfig lo0 all-zones
			/sbin/ifconfig lo0 inet6 all-zones
		fi
	fi
else
	state=`/sbin/ipadm show-if -p -o state lo0 2>/dev/null`
	if [ $? -eq 0 -a "$state" = "disabled" ]; then
		/sbin/ipadm enable-if -t lo0
	else
		# IPv4 loopback
		/sbin/ipadm create-addr -t -T static -a 127.0.0.1/8 lo0/v4

		# IPv6 loopback
		/sbin/ipadm create-addr -t -T static -a ::1/128 lo0/v6
	fi

	# Trusted Extensions shares the loopback interface with all zones
	if (smf_is_system_labeled); then
		if smf_is_globalzone; then
			/sbin/ipadm set-addrprop -t -p zone=all-zones lo0/v4
			/sbin/ipadm set-addrprop -t -p zone=all-zones lo0/v6
		fi
	fi
fi