ssm-services/init.d/iptables

#!/usr/bin/env watchman

service_type='oneshot'

cfg_ip4dump='/etc/iptables/ip4.rules'
cfg_ip6dump='/etc/iptables/ip6.rules'

start() {
	watchman.msg "Restoring netfilter rules..."
	[[ -f "$cfg_ip4dump" ]] && { /usr/bin/iptables-restore < "$cfg_ip4dump"; }
	[[ -f "$cfg_ip6dump" ]] && { /usr/bin/ip6tables-restore < "$cfg_ip6dump"; }
}

stop() {
	watchman.msg "Flushing netfilter rules..."

	iptables-save | sed -re 's/(:[A-Z]+\s+)[A-Z]+/\1ACCEPT/g' -e '/-.+/d' | iptables-restore
	ip6tables-save | sed -re 's/(:[A-Z]+\s+)[A-Z]+/\1ACCEPT/g' -e '/-.+/d' | ip6tables-restore

	[[ -f '/proc/net/ip_tables_names' ]] && {
		while read line; do iptables -t "$line" -X; done < /proc/net/ip_tables_names
	}

	[[ -f '/proc/net/ip6_tables_names' ]] && {
		while read line; do iptables -t "$line" -X; done < /proc/net/ip6_tables_names
	}
}

save() {
	watchman.msg "Saving netfilter rules..."
	/usr/bin/iptables-save > "$cfg_ip4dump";
	/usr/bin/ip6tables-save > "$cfg_ip6dump";
}