archboot/usr/lib/initcpio/install/arch_iptables

#!/usr/bin/env bash
# Created by Tobias Powalowski <tpowa@archlinux.org>

build ()
{
    add_checked_modules '/net/ipv6|/net/ipv4|/net/netfilter|/net/bridge/'
    apps="xtables-multi"
    for i in $apps; do
        add_binary "$i"
    done
  symlinks="/usr/bin/ip6tables /usr/bin/ip6tables-restore /usr/bin/ip6tables-save /usr/bin/iptables \
            /usr/bin/iptables-restore /usr/bin/iptables-save /usr/bin/iptables-xml"
    for i in $symlinks; do
        add_binary "$(which $(basename $(readlink "$i")))"
        add_symlink "$i" "$(which $(basename $(readlink "$i")))"
    done
    add_file "/etc/iptables/empty.rules"
    add_file "/etc/iptables/simple_firewall.rules"
}

help ()
{
cat<<HELPEOF
  This hook includes iptables on an arch boot image.
HELPEOF
}