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authorNicolas Fort <nicolasfort1988@gmail.com>2023-09-07 20:30:50 +0000
committerNicolas Fort <nicolasfort1988@gmail.com>2023-09-07 20:30:50 +0000
commit1772c0a7232789e6eeb0caa78fe630fab899522d (patch)
tree52cb227388e57903f3da1aee2b891201fcaf6833 /data/templates/firewall
parent487c817ea320ddabcdaf41a8112937a29c19443e (diff)
downloadvyos-1x-1772c0a7232789e6eeb0caa78fe630fab899522d.tar.gz
vyos-1x-1772c0a7232789e6eeb0caa78fe630fab899522d.zip
T4072: add firewall bridge filtering. First implementation only applies for forward chain and few matchers. Should be extended in the future.
Diffstat (limited to 'data/templates/firewall')
-rw-r--r--data/templates/firewall/nftables-bridge.j235
-rw-r--r--data/templates/firewall/nftables-defines.j214
-rw-r--r--data/templates/firewall/nftables-nat.j22
-rw-r--r--data/templates/firewall/nftables-policy.j24
-rw-r--r--data/templates/firewall/nftables.j218
5 files changed, 60 insertions, 13 deletions
diff --git a/data/templates/firewall/nftables-bridge.j2 b/data/templates/firewall/nftables-bridge.j2
new file mode 100644
index 000000000..7f94e10d6
--- /dev/null
+++ b/data/templates/firewall/nftables-bridge.j2
@@ -0,0 +1,35 @@
+{% macro bridge(bridge) %}
+{% set ns = namespace(sets=[]) %}
+{% if bridge.forward is vyos_defined %}
+{% for prior, conf in bridge.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, 'bri') }}
+{% if rule_conf.recent is vyos_defined %}
+{% set ns.sets = ns.sets + ['FWD_' + prior + '_' + rule_id] %}
+{% endif %}
+{% endfor %}
+{% endif %}
+ }
+{% endfor %}
+{% endif %}
+
+{% if bridge.name is vyos_defined %}
+{% for name_text, conf in bridge.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, 'bri') }}
+{% 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 %}
+{% endmacro %}
diff --git a/data/templates/firewall/nftables-defines.j2 b/data/templates/firewall/nftables-defines.j2
index 0a7e79edd..a20c399ae 100644
--- a/data/templates/firewall/nftables-defines.j2
+++ b/data/templates/firewall/nftables-defines.j2
@@ -1,7 +1,7 @@
-{% macro groups(group, is_ipv6) %}
+{% macro groups(group, is_ipv6, is_l3) %}
{% if group is vyos_defined %}
{% set ip_type = 'ipv6_addr' if is_ipv6 else 'ipv4_addr' %}
-{% if group.address_group is vyos_defined and not is_ipv6 %}
+{% if group.address_group is vyos_defined and not is_ipv6 and is_l3 %}
{% for group_name, group_conf in group.address_group.items() %}
{% set includes = group_conf.include if group_conf.include is vyos_defined else [] %}
set A_{{ group_name }} {
@@ -14,7 +14,7 @@
}
{% endfor %}
{% endif %}
-{% if group.ipv6_address_group is vyos_defined and is_ipv6 %}
+{% if group.ipv6_address_group is vyos_defined and is_ipv6 and is_l3 %}
{% for group_name, group_conf in group.ipv6_address_group.items() %}
{% set includes = group_conf.include if group_conf.include is vyos_defined else [] %}
set A6_{{ group_name }} {
@@ -27,7 +27,7 @@
}
{% endfor %}
{% endif %}
-{% if group.domain_group is vyos_defined %}
+{% if group.domain_group is vyos_defined and is_l3 %}
{% for name, name_config in group.domain_group.items() %}
set D_{{ name }} {
type {{ ip_type }}
@@ -46,7 +46,7 @@
}
{% endfor %}
{% endif %}
-{% if group.network_group is vyos_defined and not is_ipv6 %}
+{% if group.network_group is vyos_defined and not is_ipv6 and is_l3 %}
{% for group_name, group_conf in group.network_group.items() %}
{% set includes = group_conf.include if group_conf.include is vyos_defined else [] %}
set N_{{ group_name }} {
@@ -59,7 +59,7 @@
}
{% endfor %}
{% endif %}
-{% if group.ipv6_network_group is vyos_defined and is_ipv6 %}
+{% if group.ipv6_network_group is vyos_defined and is_ipv6 and is_l3 %}
{% for group_name, group_conf in group.ipv6_network_group.items() %}
{% set includes = group_conf.include if group_conf.include is vyos_defined else [] %}
set N6_{{ group_name }} {
@@ -72,7 +72,7 @@
}
{% endfor %}
{% endif %}
-{% if group.port_group is vyos_defined %}
+{% if group.port_group is vyos_defined and is_l3 %}
{% for group_name, group_conf in group.port_group.items() %}
{% set includes = group_conf.include if group_conf.include is vyos_defined else [] %}
set P_{{ group_name }} {
diff --git a/data/templates/firewall/nftables-nat.j2 b/data/templates/firewall/nftables-nat.j2
index f0be3cf5d..dcf28da88 100644
--- a/data/templates/firewall/nftables-nat.j2
+++ b/data/templates/firewall/nftables-nat.j2
@@ -62,6 +62,6 @@ table ip vyos_nat {
return
}
-{{ group_tmpl.groups(firewall_group, False) }}
+{{ group_tmpl.groups(firewall_group, False, True) }}
}
{% endif %}
diff --git a/data/templates/firewall/nftables-policy.j2 b/data/templates/firewall/nftables-policy.j2
index 699349e2b..d77e3f6e9 100644
--- a/data/templates/firewall/nftables-policy.j2
+++ b/data/templates/firewall/nftables-policy.j2
@@ -32,7 +32,7 @@ table ip vyos_mangle {
{% endfor %}
{% endif %}
-{{ group_tmpl.groups(firewall_group, False) }}
+{{ group_tmpl.groups(firewall_group, False, True) }}
}
table ip6 vyos_mangle {
@@ -61,5 +61,5 @@ table ip6 vyos_mangle {
{% endfor %}
{% endif %}
-{{ group_tmpl.groups(firewall_group, True) }}
+{{ group_tmpl.groups(firewall_group, True, True) }}
}
diff --git a/data/templates/firewall/nftables.j2 b/data/templates/firewall/nftables.j2
index 0fbddfaa9..bb14609b0 100644
--- a/data/templates/firewall/nftables.j2
+++ b/data/templates/firewall/nftables.j2
@@ -1,6 +1,7 @@
#!/usr/sbin/nft -f
{% import 'firewall/nftables-defines.j2' as group_tmpl %}
+{% import 'firewall/nftables-bridge.j2' as bridge_tmpl %}
flush chain raw FW_CONNTRACK
flush chain ip6 raw FW_CONNTRACK
@@ -147,7 +148,7 @@ table ip vyos_filter {
{% endfor %}
{% endif %}
{% endif %}
-{{ group_tmpl.groups(group, False) }}
+{{ group_tmpl.groups(group, False, True) }}
}
{% if first_install is not vyos_defined %}
@@ -250,5 +251,16 @@ table ip6 vyos_filter {
{% endfor %}
{% endif %}
{% endif %}
-{{ group_tmpl.groups(group, True) }}
-} \ No newline at end of file
+{{ group_tmpl.groups(group, True, True) }}
+}
+
+## Bridge Firewall
+{% if first_install is not vyos_defined %}
+delete table bridge vyos_filter
+{% endif %}
+{% if bridge is vyos_defined %}
+table bridge vyos_filter {
+{{ bridge_tmpl.bridge(bridge) }}
+{{ group_tmpl.groups(group, False, False) }}
+}
+{% endif %}