#!/bin/sh
#
# Copyright (c) 2000  The KAME Project
# 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.
#
# $FreeBSD$
# 	From: src/etc/rc.network6,v 1.29 2002/04/06 15:15:43
#

# PROVIDE: network_ipv6
# REQUIRE: routing
# KEYWORD: FreeBSD

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

name="network_ipv6"
rcvar=`set_rcvar ipv6`
start_cmd="network_ipv6_start"

network_ipv6_start()
{
	# disallow "internal" addresses to appear on the wire
	route add -inet6 ::ffff:0.0.0.0 -prefixlen 96 ::1 -reject
	route add -inet6 ::0.0.0.0 -prefixlen 96 ::1 -reject

	case ${ipv6_network_interfaces} in
	[Aa][Uu][Tt][Oo])
		# Get a list of network interfaces
		ipv6_network_interfaces="`ifconfig -l`"
		;;
	[Nn][Oo][Nn][Ee])
		ipv6_network_interfaces=''
		;;
	esac

	if checkyesno ipv6_gateway_enable; then
		# act as a router
		${SYSCTL_W} net.inet6.ip6.forwarding=1
		${SYSCTL_W} net.inet6.ip6.accept_rtadv=0

		# wait for DAD
		for i in $ipv6_network_interfaces; do
			ifconfig $i up
		done
		sleep `${SYSCTL_N} net.inet6.ip6.dad_count`
		sleep 1
	else
		# act as endhost - start with manual configuration
		# Setup of net.inet6.ip6.accept_rtadv is done later by
		# network6_interface_setup.
		${SYSCTL_W} net.inet6.ip6.forwarding=0
	fi

	if [ -n "${ipv6_network_interfaces}" ]; then
		# Setup the interfaces
		network6_interface_setup $ipv6_network_interfaces

		# wait for DAD's completion (for global addrs)
		sleep `${SYSCTL_N} net.inet6.ip6.dad_count`
		sleep 1
	fi

	# Filter out interfaces on which IPv6 initialization failed.
	if checkyesno ipv6_gateway_enable; then
		ipv6_working_interfaces=""
		for i in ${ipv6_network_interfaces}; do
			laddr=`network6_getladdr $i exclude_tentative`
			case ${laddr} in
			'')
				;;
			*)
				ipv6_working_interfaces="$i \
				    ${ipv6_working_interfaces}"
				;;
			esac
		done
		ipv6_network_interfaces=${ipv6_working_interfaces}
	fi

	# Setup IPv6 to IPv4 mapping
	network6_stf_setup

	# Install the "default interface" to kernel, which will be used
	# as the default route when there's no router.
	network6_default_interface_setup

	# Setup static routes
	network6_static_routes_setup

	# Setup faith
	network6_faith_setup

	# Support for IPv4 address tacked onto an IPv6 address
	if checkyesno ipv6_ipv4mapping; then
		echo 'IPv4 mapped IPv6 address support=YES'
		${SYSCTL_W} net.inet6.ip6.v6only=0 >/dev/null
	else
		echo 'IPv4 mapped IPv6 address support=NO'
		${SYSCTL_W} net.inet6.ip6.v6only=1 >/dev/null
	fi
}

load_rc_config $name
run_rc_command "$1"