freebsd-dev/etc/rc.d/static_arp

#!/bin/sh
#
# Copyright (c) 2009  Xin LI <delphij@FreeBSD.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# Configure static ARP table
#
# $FreeBSD$
#

# PROVIDE: static_arp
# REQUIRE: netif
# KEYWORD: nojail

. /etc/rc.subr
. /etc/network.subr

name="static_arp"
start_cmd="static_arp_start"
stop_cmd="static_arp_stop"

static_arp_start()
{
	local e arp_args

	if [ -n "${static_arp_pairs}" ]; then
		echo -n 'Binding static ARP pair(s):'
		for e in ${static_arp_pairs}; do
			echo -n " ${e}"
			eval arp_args=\$static_arp_${e}
			arp -S ${arp_args} >/dev/null 2>&1
		done
		echo '.'
	fi
}

static_arp_stop()
{
	local e arp_args

	if [ -n "${static_arp_pairs}" ]; then
		echo -n 'Unbinding static ARP pair(s):'
		for e in ${static_arp_pairs}; do
			echo -n " ${e}"
			eval arp_args=\$static_arp_${e}
			arp -d ${arp_args%%[ 	]*} > /dev/null 2>&1
		done
		echo '.'
	fi
}

load_rc_config $name
run_rc_command "$1"