freebsd/etc/rc.d/ip6addrctl

#!/bin/sh
#
# $FreeBSD$
#

# PROVIDE: ip6addrctl
# REQUIRE: mountcritlocal netif
# BEFORE: network_ipv6
# KEYWORD: nojail

. /etc/rc.subr

name="ip6addrctl"
rcvar=`set_rcvar`
start_cmd="ip6addrctl_start"
stop_cmd="ip6addrctl_stop"
extra_commands="status prefer_ipv6 prefer_ipv4"
status_cmd="ip6addrctl"
prefer_ipv6_cmd="ip6addrctl_prefer_ipv6"
prefer_ipv4_cmd="ip6addrctl_prefer_ipv4"

ip6addrctl_prefer_ipv6()
{
	ip6addrctl flush >/dev/null 2>&1
	ip6addrctl add ::1/128		50	0
	ip6addrctl add ::/0		40	1
	ip6addrctl add 2002::/16	30	2
	ip6addrctl add ::/96		20	3
	ip6addrctl add ::ffff:0:0/96	10	4
	checkyesno ip6addrctl_verbose && ip6addrctl
}

ip6addrctl_prefer_ipv4()
{
	ip6addrctl flush >/dev/null 2>&1
	ip6addrctl add ::ffff:0:0/96	50	0
	ip6addrctl add ::1/128		40	1
	ip6addrctl add ::/0		30	2
	ip6addrctl add 2002::/16	20	3
	ip6addrctl add ::/96		10	4
	checkyesno ip6addrctl_verbose && ip6addrctl
}

ip6addrctl_start()
{
	if ifconfig lo0 inet6 >/dev/null 2>&1; then
		# We have IPv6 support in kernel.

		# install the policy of the address selection algorithm.
		if [ -f /etc/ip6addrctl.conf ]; then
			ip6addrctl flush >/dev/null 2>&1
			ip6addrctl install /etc/ip6addrctl.conf
			checkyesno ip6addrctl_verbose && ip6addrctl
		else
			if checkyesno ipv6_enable; then
				ip6addrctl_prefer_ipv6
			else
				ip6addrctl_prefer_ipv4
			fi
		fi
	fi
}

ip6addrctl_stop()
{
	if ifconfig lo0 inet6 >/dev/null 2>&1; then
		# We have IPv6 support in kernel.
		ip6addrctl flush >/dev/null 2>&1
	fi
}

load_rc_config $name
run_rc_command "$1"