From e990b2f4c045f5d1be02915ec7d8869d5475ed4e Mon Sep 17 00:00:00 2001
From: Viacheslav Hletenko <v.gletenko@vyos.io>
Date: Tue, 17 May 2022 21:30:50 +0000
Subject: firewall: T970: Add firewall group domain-group
Domain group allows to filter addresses by domain main
Resolved addresses as elements are stored to named "nft set"
that used in the nftables rules
Also added a dynamic "resolver" systemd daemon
vyos-domain-group-resolve.service which starts python script
for the domain-group addresses resolving by timeout 300 sec
set firewall group domain-group DOMAINS address 'example.com'
set firewall group domain-group DOMAINS address 'example.org'
set firewall name FOO rule 10 action 'drop'
set firewall name FOO rule 10 source group domain-group 'DOMAINS'
set interfaces ethernet eth0 firewall local name 'FOO'
nft list table ip filter
table ip filter {
set DOMAINS {
type ipv4_addr
flags interval
elements = { 192.0.2.1, 192.0.2.85,
203.0.113.55, 203.0.113.58 }
}
chain NAME_FOO {
ip saddr @DOMAINS counter packets 0 bytes 0 drop comment "FOO-10"
counter packets 0 bytes 0 return comment "FOO default-action accept"
}
}
---
data/templates/firewall/nftables.j2 | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'data')
diff --git a/data/templates/firewall/nftables.j2 b/data/templates/firewall/nftables.j2
index fac3fad03..1f88ae40c 100644
--- a/data/templates/firewall/nftables.j2
+++ b/data/templates/firewall/nftables.j2
@@ -45,6 +45,14 @@ table ip filter {
{{ conf | nft_default_rule(name_text) }}
}
{% endfor %}
+{% if group is vyos_defined and group.domain_group is vyos_defined %}
+{% for name, name_config in group.domain_group.items() %}
+ set {{ name }} {
+ type ipv4_addr
+ flags interval
+ }
+{% endfor %}
+{% endif %}
{% for set_name in ns.sets %}
set RECENT_{{ set_name }} {
type ipv4_addr
--
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