xref: /src/etc/rc.d/ipfilter

#!/bin/sh
#
# $NetBSD: ipfilter,v 1.21 2020/09/08 12:52:18 martin Exp $
#

# PROVIDE: ipfilter
# REQUIRE: root bootconf CRITLOCALMOUNTED tty

$_rc_subr_loaded . /etc/rc.subr

name="ipfilter"
rcvar=$name
start_precmd="ipfilter_prestart"
start_cmd="ipfilter_start"
stop_precmd="test -f /etc/ipf.conf -o -f /etc/ipf6.conf"
stop_cmd="ipfilter_stop"
reload_precmd="$stop_precmd"
reload_cmd="ipfilter_reload"
resync_precmd="$stop_precmd"
resync_cmd="ipfilter_resync"
status_precmd="$stop_precmd"
status_cmd="ipfilter_status"
extra_commands="reload resync status"

ipfilter_prestart()
{
	if [ ! -f /etc/ipf.conf ] && [ ! -f /etc/ipf6.conf ]; then
		warn "/etc/ipf*.conf not readable; ipfilter start aborted."

		stop_boot
		return 1
	fi
	return 0
}

ipfilter_start()
{
	echo "Enabling ipfilter."
	/sbin/ipf ${rc_flags} -E

		# Do the flush first; since older ipf has different semantics.
		#
	if [ -f /etc/ipf.conf ]; then
		/sbin/ipf -Fa
	fi
	if [ -f /etc/ipf6.conf ]; then
		/sbin/ipf -6 -Fa
	fi

		# Now load the config files
		#
	if [ -f /etc/ipf.conf ]; then
		/sbin/ipf -f /etc/ipf.conf
	fi
	if [ -f /etc/ipf6.conf ]; then
		/sbin/ipf -6 -f /etc/ipf6.conf
	fi
}

ipfilter_stop()
{
	echo "Disabling ipfilter."
	/sbin/ipf -D
}

ipfilter_reload()
{
	echo "Reloading ipfilter rules."

		# Do the flush first; since older ipf has different semantics.
		#
	if [ -f /etc/ipf.conf ]; then
		/sbin/ipf -I -Fa
	fi
	if [ -f /etc/ipf6.conf ]; then
		/sbin/ipf -6 -I -Fa
	fi

		# Now load the config files into the Inactive set
		#
	if [ -f /etc/ipf.conf ] && ! /sbin/ipf -I -f /etc/ipf.conf; then
		err 1 "reload of ipf.conf failed; not swapping to new ruleset."
	fi
	if [ -f /etc/ipf6.conf ] && ! /sbin/ipf -I -6 -f /etc/ipf6.conf; then
		err 1 "reload of ipf6.conf failed; not swapping to new ruleset."
	fi

		# Swap in the new rules
		#
	/sbin/ipf -s
}

ipfilter_resync()
{
	/sbin/ipf -y
}

ipfilter_status()
{
	/sbin/ipf -V
}

load_rc_config $name
run_rc_command "$1"