83 lines
1.8 KiB
Django/Jinja
83 lines
1.8 KiB
Django/Jinja
#jinja2:lstrip_blocks: True
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#!/usr/sbin/nft -f
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{%- macro nftrule(rule) -%}
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{{rule.matches }} {% if not rule.statement == "counter" or not rule.counter %}counter {% endif %}{{ rule.statement }} comment "{{ rule.comment }}"
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{% endmacro %}
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{%- macro nftchain(name) -%}
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{% set chain_rules = [] %}
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{% for i in firewall.chains[name] %}
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{% if not firewall.chains[name][i] is mapping %}
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{% set tmprule = { 'matches': firewall.chains[name][i] }%}
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{% else %}
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{% set tmprule = firewall.chains[name][i] %}
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{% endif%}
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{% set rule = {}|combine(firewall.defaults.all, firewall.defaults[name], {'comment': i}, tmprule, recursive=True) %}{{ chain_rules.append(rule) }}
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{% endfor %}
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{% for rule in chain_rules|sort(attribute='priority') %}
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{{ nftrule(rule) }}
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{% endfor %}
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{% endmacro%}
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flush ruleset
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{% for i in firewall.vars %}
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define {{ i }} = { {{ firewall.vars[i]|join(', ') }} }
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{% endfor %}
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table inet filter {
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chain input {
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type filter hook input priority 0;
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policy {{ firewall.policies.input }};
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{{ nftchain('input') }}
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counter comment "Count dropped"
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}
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chain forward {
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type filter hook forward priority 0;
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policy {{ firewall.policies.forward }};
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{{ nftchain('forward') }}
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counter comment "Count dropped"
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}
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chain output {
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type filter hook output priority 0;
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policy {{ firewall.policies.output }};
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{{ nftchain('output') }}
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}
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}
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table ip nat {
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# NAT
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chain prerouting {
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type nat hook prerouting priority -100;
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{{ nftchain('nat_prerouting') }}
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}
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chain postrouting {
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type nat hook postrouting priority 100;
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{{ nftchain('nat_postrouting') }}
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}
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}
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table ip6 nat {
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# NAT
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chain prerouting {
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type nat hook prerouting priority -100;
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{{ nftchain('nat6_prerouting') }}
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}
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chain postrouting {
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type nat hook postrouting priority 100;
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{{ nftchain('nat6_postrouting') }}
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}
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}
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include "/etc/nftables.d/*.nft"
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