usr/src/cmd/cmd-inet/usr.sbin/routeadm/svc-forwarding

#!/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]
#
# CDDL HEADER END
#
#
# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# ident	"%Z%%M%	%I%	%E% SMI"

# This script is the shared method script for the ipv4-routing, ipv6-routing,
# ipv4-forwarding and ipv6-forwarding services.

. /lib/svc/share/smf_include.sh

set_forwarding_flag() {
	proto="$1"
	value="$2"
	ndd_flag="0"
	if [ "$value" = "enabled" ]; then
		ndd_flag="1"
	fi
	if [ "$proto" = "ipv4" ]; then
		/usr/sbin/ndd -set /dev/ip ip_forwarding $ndd_flag
	else
		/usr/sbin/ndd -set /dev/ip ip6_forwarding $ndd_flag
		/usr/sbin/ndd -set /dev/ip ip6_send_redirects $ndd_flag
	fi
}

usage() {
	echo "Usage: $0 { start | stop | refresh } { ipv4 | ipv6 }"
}

numv6ifs=`/usr/sbin/ifconfig -au6 | /usr/bin/grep -c inet6`

method="$1"
proto="$2"

if [ -z "$proto" ]; then
	usage
	exit $SMF_ERROR_FATAL
fi

case "$1" in
'start' | 'refresh' )
	smf_configure_ip || exit $SMF_EXIT_OK
	#
	# Start ip forwarding.
	#
	if [ -z "$proto" ]; then
		usage
		exit $SMF_ERROR_FATAL
	fi
	if [ "$proto" = "ipv6" -a "$numv6ifs" = 0 ]; then
		echo "Error: no IPv6 interface configured"
		exit $SMF_EXIT_ERR_CONFIG
	fi
	set_forwarding_flag $proto enabled
        ;;
'stop')
	set_forwarding_flag $proto disabled
	;;
*)
	usage
        exit $SMF_ERROR_FATAL
        ;;
esac

exit "$SMF_EXIT_OK"