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#!/usr/sbin/nft -f
{% if cleanup_commands is defined %}
{% for command in cleanup_commands %}
{{ command }}
{% endfor %}
{% endif %}
{% if zone is defined %}
table ip filter {
{% for zone_name, zone_conf in zone.items() if zone_conf.ipv4 %}
{% if zone_conf.local_zone is defined %}
chain VZONE_{{ zone_name }}_IN {
iifname lo counter return
{% for from_zone, from_conf in zone_conf.from.items() if from_conf.firewall.name is defined %}
iifname { {{ zone[from_zone].interface | join(",") }} } counter jump {{ from_conf.firewall.name }}
iifname { {{ zone[from_zone].interface | join(",") }} } counter return
{% endfor %}
counter {{ zone_conf.default_action if zone_conf.default_action is defined else 'drop' }}
}
chain VZONE_{{ zone_name }}_OUT {
oifname lo counter return
{% for from_zone, from_conf in zone_conf.from_local.items() if from_conf.firewall.name is defined %}
oifname { {{ zone[from_zone].interface | join(",") }} } counter jump {{ from_conf.firewall.name }}
oifname { {{ zone[from_zone].interface | join(",") }} } counter return
{% endfor %}
counter {{ zone_conf.default_action if zone_conf.default_action is defined else 'drop' }}
}
{% else %}
chain VZONE_{{ zone_name }} {
iifname { {{ zone_conf.interface | join(",") }} } counter {{ zone_conf | nft_intra_zone_action(ipv6=False) }}
{% for from_zone, from_conf in zone_conf.from.items() if from_conf.firewall.name is defined %}
{% if zone[from_zone].local_zone is not defined %}
iifname { {{ zone[from_zone].interface | join(",") }} } counter jump {{ from_conf.firewall.name }}
iifname { {{ zone[from_zone].interface | join(",") }} } counter return
{% endif %}
{% endfor %}
counter {{ zone_conf.default_action if zone_conf.default_action is defined else 'drop' }}
}
{% endif %}
{% endfor %}
}
table ip6 filter {
{% for zone_name, zone_conf in zone.items() if zone_conf.ipv6 %}
{% if zone_conf.local_zone is defined %}
chain VZONE6_{{ zone_name }}_IN {
iifname lo counter return
{% for from_zone, from_conf in zone_conf.from.items() if from_conf.firewall.ipv6_name is defined %}
iifname { {{ zone[from_zone].interface | join(",") }} } counter jump {{ from_conf.firewall.ipv6_name }}
iifname { {{ zone[from_zone].interface | join(",") }} } counter return
{% endfor %}
counter {{ zone_conf.default_action if zone_conf.default_action is defined else 'drop' }}
}
chain VZONE6_{{ zone_name }}_OUT {
oifname lo counter return
{% for from_zone, from_conf in zone_conf.from_local.items() if from_conf.firewall.ipv6_name is defined %}
oifname { {{ zone[from_zone].interface | join(",") }} } counter jump {{ from_conf.firewall.ipv6_name }}
oifname { {{ zone[from_zone].interface | join(",") }} } counter return
{% endfor %}
counter {{ zone_conf.default_action if zone_conf.default_action is defined else 'drop' }}
}
{% else %}
chain VZONE6_{{ zone_name }} {
iifname { {{ zone_conf.interface | join(",") }} } counter {{ zone_conf | nft_intra_zone_action(ipv6=True) }}
{% for from_zone, from_conf in zone_conf.from.items() if from_conf.firewall.ipv6_name is defined %}
{% if zone[from_zone].local_zone is not defined %}
iifname { {{ zone[from_zone].interface | join(",") }} } counter jump {{ from_conf.firewall.ipv6_name }}
iifname { {{ zone[from_zone].interface | join(",") }} } counter return
{% endif %}
{% endfor %}
counter {{ zone_conf.default_action if zone_conf.default_action is defined else 'drop' }}
}
{% endif %}
{% endfor %}
}
{% for zone_name, zone_conf in zone.items() %}
{% if zone_conf.ipv4 %}
{% if 'local_zone' in zone_conf %}
insert rule ip filter VYOS_FW_LOCAL counter jump VZONE_{{ zone_name }}_IN
insert rule ip filter VYOS_FW_OUTPUT counter jump VZONE_{{ zone_name }}_OUT
{% else %}
insert rule ip filter VYOS_FW_FORWARD oifname { {{ zone_conf.interface | join(',') }} } counter jump VZONE_{{ zone_name }}
{% endif %}
{% endif %}
{% if zone_conf.ipv6 %}
{% if 'local_zone' in zone_conf %}
insert rule ip6 filter VYOS_FW6_LOCAL counter jump VZONE6_{{ zone_name }}_IN
insert rule ip6 filter VYOS_FW6_OUTPUT counter jump VZONE6_{{ zone_name }}_OUT
{% else %}
insert rule ip6 filter VYOS_FW6_FORWARD oifname { {{ zone_conf.interface | join(',') }} } counter jump VZONE6_{{ zone_name }}
{% endif %}
{% endif %}
{% endfor %}
{# Ensure that state-policy rule is first in the chain #}
{% if firewall.state_policy is defined %}
{% for chain in ['VYOS_FW_FORWARD', 'VYOS_FW_OUTPUT', 'VYOS_FW_LOCAL'] %}
insert rule ip filter {{ chain }} jump VYOS_STATE_POLICY
{% endfor %}
{% for chain in ['VYOS_FW6_FORWARD', 'VYOS_FW6_OUTPUT', 'VYOS_FW6_LOCAL'] %}
insert rule ip6 filter {{ chain }} jump VYOS_STATE_POLICY6
{% endfor %}
{% endif %}
{% endif %}
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