52 lines
1.5 KiB
Plaintext
52 lines
1.5 KiB
Plaintext
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#!/usr/sbin/nft -f
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flush ruleset
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table inet filter {
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chain input {
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type filter hook input priority filter; policy drop
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ct state vmap { invalid : drop, established : accept, related : accept }
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iif lo accept
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ip protocol icmp icmp type {
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echo-request, echo-reply, destination-unreachable,
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parameter-problem, time-exceeded,
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} accept comment "accept some ICMPv4"
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ip6 nexthdr icmpv6 icmpv6 type {
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echo-request, echo-reply, destination-unreachable,
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packet-too-big, parameter-problem, time-exceeded,
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} accept comment "accept some ICMPv6"
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# BGP / BFD sessions
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iif lan0 ip6 saddr fe80::/64 accept
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iif lan1 ip6 saddr fe80::/64 accept
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iifname mgmt accept comment "management access"
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meta nfproto ipv6 tcp dport 80 accept comment "for certificate renewal"
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{% for service in services %}
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{% set prefixes = service | allowed_prefixes %}
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{% set ports = service.ports | compact_numlist %}
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# service {{ service.name }}
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{% if prefixes | ipv4 %}
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ip saddr { {{ prefixes | ipv4 | join(', ') }} } tcp dport { {{ ports }} } accept
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{% endif %}
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{% if prefixes | ipv6 %}
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ip6 saddr { {{ prefixes | ipv6 | join(', ') }} } tcp dport { {{ ports }} } accept
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{% endif %}
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{% endfor %}
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}
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chain forward {
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type filter hook forward priority filter; policy drop
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}
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chain output {
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type filter hook output priority filter; policy accept
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}
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}
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