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nftables.j2
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nftables.j2
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#!/usr/sbin/nft -f
{% import 'firewall/nftables-defines.j2' as group_tmpl %}
{% if first_install is not vyos_defined %}
delete table ip vyos_filter
{% endif %}
table ip vyos_filter {
{% if ipv4 is vyos_defined %}
{% set ns = namespace(sets=[]) %}
{% if ipv4.forward is vyos_defined %}
{% for prior, conf in ipv4.forward.items() %}
{% set def_action = conf.default_action %}
chain VYOS_FORWARD_{{ prior }} {
type filter hook forward priority {{ prior }}; policy {{ def_action }};
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('FWD', prior, rule_id) }}
{% if rule_conf.recent is vyos_defined %}
{% set ns.sets = ns.sets + ['FWD_' + prior + '_' + rule_id] %}
{% endif %}
{% endfor %}
{% endif %}
}
{% endfor %}
{% endif %}
{% if ipv4.input is vyos_defined %}
{% for prior, conf in ipv4.input.items() %}
{% set def_action = conf.default_action %}
chain VYOS_INPUT_{{ prior }} {
type filter hook input priority {{ prior }}; policy {{ def_action }};
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('INP',prior, rule_id) }}
{% if rule_conf.recent is vyos_defined %}
{% set ns.sets = ns.sets + ['INP_' + prior + '_' + rule_id] %}
{% endif %}
{% endfor %}
{% endif %}
}
{% endfor %}
{% endif %}
{% if ipv4.output is vyos_defined %}
{% for prior, conf in ipv4.output.items() %}
{% set def_action = conf.default_action %}
chain VYOS_OUTPUT_{{ prior }} {
type filter hook output priority {{ prior }}; policy {{ def_action }};
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('OUT', prior, rule_id) }}
{% if rule_conf.recent is vyos_defined %}
{% set ns.sets = ns.sets + ['OUT_' + prior + '_' + rule_id] %}
{% endif %}
{% endfor %}
{% endif %}
}
{% endfor %}
{% endif %}
chain VYOS_FRAG_MARK {
type filter hook prerouting priority -450; policy accept;
ip frag-off & 0x3fff != 0 meta mark set 0xffff1 return
}
{% if ipv4.prerouting is vyos_defined %}
{% for prior, conf in ipv4.prerouting.items() %}
{% set def_action = conf.default_action %}
chain VYOS_PREROUTING_{{ prior }} {
type filter hook prerouting priority {{ prior }}; policy {{ def_action }};
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('PRE', prior, rule_id) }}
{% if rule_conf.recent is vyos_defined %}
{% set ns.sets = ns.sets + ['PRE_' + prior + '_' + rule_id] %}
{% endif %}
{% endfor %}
{% endif %}
{{ conf | nft_default_rule(prior) }}
}
{% endfor %}
{% endif %}
{% if ipv4.name is vyos_defined %}
{% for name_text, conf in ipv4.name.items() %}
chain NAME_{{ name_text }} {
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('NAM', name_text, rule_id) }}
{% if rule_conf.recent is vyos_defined %}
{% set ns.sets = ns.sets + ['NAM_' + name_text + '_' + rule_id] %}
{% endif %}
{% endfor %}
{% endif %}
{{ conf | nft_default_rule(name_text) }}
}
{% endfor %}
{% endif %}
{% for set_name in ns.sets %}
set RECENT_{{ set_name }} {
type ipv4_addr
size 65535
flags dynamic
}
{% endfor %}
{% for set_name in ip_fqdn %}
set FQDN_{{ set_name }} {
type ipv4_addr
flags interval
}
{% endfor %}
{% if geoip_updated.name is vyos_defined %}
{% for setname in geoip_updated.name %}
set {{ setname }} {
type ipv4_addr
flags interval
}
{% endfor %}
{% endif %}
{% endif %}
{{ group_tmpl.groups(group, False) }}
}
{% if first_install is not vyos_defined %}
delete table ip6 vyos_filter
{% endif %}
table ip6 vyos_filter {
{% if ipv6 is vyos_defined %}
{% set ns = namespace(sets=[]) %}
{% if ipv6.forward is vyos_defined %}
{% for prior, conf in ipv6.forward.items() %}
{% set def_action = conf.default_action %}
chain VYOS_IPV6_FORWARD_{{ prior }} {
type filter hook forward priority {{ prior }}; policy {{ def_action }};
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('FWD', prior, rule_id ,'ip6') }}
{% if rule_conf.recent is vyos_defined %}
{% set ns.sets = ns.sets + ['FWD_' + prior + '_' + rule_id] %}
{% endif %}
{% endfor %}
{% endif %}
}
{% endfor %}
{% endif %}
{% if ipv6.input is vyos_defined %}
{% for prior, conf in ipv6.input.items() %}
{% set def_action = conf.default_action %}
chain VYOS_IPV6_INPUT_{{ prior }} {
type filter hook input priority {{ prior }}; policy {{ def_action }};
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('INP', prior, rule_id ,'ip6') }}
{% if rule_conf.recent is vyos_defined %}
{% set ns.sets = ns.sets + ['INP_' + prior + '_' + rule_id] %}
{% endif %}
{% endfor %}
{% endif %}
}
{% endfor %}
{% endif %}
{% if ipv6.output is vyos_defined %}
{% for prior, conf in ipv6.output.items() %}
{% set def_action = conf.default_action %}
chain VYOS_IPV6_OUTPUT_{{ prior }} {
type filter hook output priority {{ prior }}; policy {{ def_action }};
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('OUT', prior, rule_id ,'ip6') }}
{% if rule_conf.recent is vyos_defined %}
{% set ns.sets = ns.sets + ['OUT_ ' + prior + '_' + rule_id] %}
{% endif %}
{% endfor %}
{% endif %}
}
{% endfor %}
{% endif %}
chain VYOS_FRAG6_MARK {
type filter hook prerouting priority -450; policy accept;
exthdr frag exists meta mark set 0xffff1 return
}
{% if ipv6.name is vyos_defined %}
{% for name_text, conf in ipv6.name.items() %}
chain NAME6_{{ name_text }} {
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('NAM', name_text, rule_id, 'ip6') }}
{% if rule_conf.recent is vyos_defined %}
{% set ns.sets = ns.sets + ['NAM_' + name_text + '_' + rule_id] %}
{% endif %}
{% endfor %}
{% endif %}
{{ conf | nft_default_rule(name_text, ipv6=True) }}
}
{% endfor %}
{% endif %}
{% for set_name in ns.sets %}
set RECENT6_{{ set_name }} {
type ipv6_addr
size 65535
flags dynamic
}
{% endfor %}
{% for set_name in ip6_fqdn %}
set FQDN_{{ set_name }} {
type ipv6_addr
flags interval
}
{% endfor %}
{% if geoip_updated.ipv6_name is vyos_defined %}
{% for setname in geoip_updated.ipv6_name %}
set {{ setname }} {
type ipv6_addr
flags interval
}
{% endfor %}
{% endif %}
{% endif %}
{{ group_tmpl.groups(group, True) }}
}

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nftables.j2 (8 KB)

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