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-rw-r--r--data/templates/firewall/nftables-zone.j211
-rw-r--r--data/templates/firewall/nftables.j250
2 files changed, 58 insertions, 3 deletions
diff --git a/data/templates/firewall/nftables-zone.j2 b/data/templates/firewall/nftables-zone.j2
index beb14ff00..5e55099ca 100644
--- a/data/templates/firewall/nftables-zone.j2
+++ b/data/templates/firewall/nftables-zone.j2
@@ -1,5 +1,5 @@
-{% macro zone_chains(zone, family) %}
+{% macro zone_chains(zone, family, state_policy=False) %}
{% if family == 'ipv6' %}
{% set fw_name = 'ipv6_name' %}
{% set suffix = '6' %}
@@ -10,6 +10,9 @@
chain VYOS_ZONE_FORWARD {
type filter hook forward priority 1; policy accept;
+{% if state_policy %}
+ jump VYOS_STATE_POLICY{{ suffix }}
+{% endif %}
{% for zone_name, zone_conf in zone.items() %}
{% if 'local_zone' not in zone_conf %}
oifname { {{ zone_conf.interface | join(',') }} } counter jump VZONE_{{ zone_name }}
@@ -18,6 +21,9 @@
}
chain VYOS_ZONE_LOCAL {
type filter hook input priority 1; policy accept;
+{% if state_policy %}
+ jump VYOS_STATE_POLICY{{ suffix }}
+{% endif %}
{% for zone_name, zone_conf in zone.items() %}
{% if 'local_zone' in zone_conf %}
counter jump VZONE_{{ zone_name }}_IN
@@ -26,6 +32,9 @@
}
chain VYOS_ZONE_OUTPUT {
type filter hook output priority 1; policy accept;
+{% if state_policy %}
+ jump VYOS_STATE_POLICY{{ suffix }}
+{% endif %}
{% for zone_name, zone_conf in zone.items() %}
{% if 'local_zone' in zone_conf %}
counter jump VZONE_{{ zone_name }}_OUT
diff --git a/data/templates/firewall/nftables.j2 b/data/templates/firewall/nftables.j2
index 63195d25f..e0ad0e00a 100644
--- a/data/templates/firewall/nftables.j2
+++ b/data/templates/firewall/nftables.j2
@@ -46,6 +46,9 @@ table ip vyos_filter {
{% for prior, conf in ipv4.forward.items() %}
chain VYOS_FORWARD_{{ prior }} {
type filter hook forward priority {{ prior }}; policy accept;
+{% if global_options.state_policy is vyos_defined %}
+ jump VYOS_STATE_POLICY
+{% endif %}
{% 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) }}
@@ -63,6 +66,9 @@ table ip vyos_filter {
{% for prior, conf in ipv4.input.items() %}
chain VYOS_INPUT_{{ prior }} {
type filter hook input priority {{ prior }}; policy accept;
+{% if global_options.state_policy is vyos_defined %}
+ jump VYOS_STATE_POLICY
+{% endif %}
{% 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) }}
@@ -80,6 +86,9 @@ table ip vyos_filter {
{% for prior, conf in ipv4.output.items() %}
chain VYOS_OUTPUT_{{ prior }} {
type filter hook output priority {{ prior }}; policy accept;
+{% if global_options.state_policy is vyos_defined %}
+ jump VYOS_STATE_POLICY
+{% endif %}
{% 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) }}
@@ -154,7 +163,21 @@ table ip vyos_filter {
{{ group_tmpl.groups(group, False, True) }}
{% if zone is vyos_defined %}
-{{ zone_tmpl.zone_chains(zone, 'ipv4') }}
+{{ zone_tmpl.zone_chains(zone, 'ipv4', global_options.state_policy is vyos_defined) }}
+{% endif %}
+{% if global_options.state_policy is vyos_defined %}
+ chain VYOS_STATE_POLICY {
+{% if global_options.state_policy.established is vyos_defined %}
+ {{ global_options.state_policy.established | nft_state_policy('established') }}
+{% endif %}
+{% if global_options.state_policy.invalid is vyos_defined %}
+ {{ global_options.state_policy.invalid | nft_state_policy('invalid') }}
+{% endif %}
+{% if global_options.state_policy.related is vyos_defined %}
+ {{ global_options.state_policy.related | nft_state_policy('related') }}
+{% endif %}
+ return
+ }
{% endif %}
}
@@ -174,6 +197,9 @@ table ip6 vyos_filter {
{% for prior, conf in ipv6.forward.items() %}
chain VYOS_IPV6_FORWARD_{{ prior }} {
type filter hook forward priority {{ prior }}; policy accept;
+{% if global_options.state_policy is vyos_defined %}
+ jump VYOS_STATE_POLICY6
+{% endif %}
{% 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') }}
@@ -191,6 +217,9 @@ table ip6 vyos_filter {
{% for prior, conf in ipv6.input.items() %}
chain VYOS_IPV6_INPUT_{{ prior }} {
type filter hook input priority {{ prior }}; policy accept;
+{% if global_options.state_policy is vyos_defined %}
+ jump VYOS_STATE_POLICY6
+{% endif %}
{% 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') }}
@@ -208,6 +237,9 @@ table ip6 vyos_filter {
{% for prior, conf in ipv6.output.items() %}
chain VYOS_IPV6_OUTPUT_{{ prior }} {
type filter hook output priority {{ prior }}; policy accept;
+{% if global_options.state_policy is vyos_defined %}
+ jump VYOS_STATE_POLICY6
+{% endif %}
{% 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') }}
@@ -266,7 +298,21 @@ table ip6 vyos_filter {
{% endif %}
{{ group_tmpl.groups(group, True, True) }}
{% if zone is vyos_defined %}
-{{ zone_tmpl.zone_chains(zone, 'ipv6') }}
+{{ zone_tmpl.zone_chains(zone, 'ipv6', global_options.state_policy is vyos_defined) }}
+{% endif %}
+{% if global_options.state_policy is vyos_defined %}
+ chain VYOS_STATE_POLICY6 {
+{% if global_options.state_policy.established is vyos_defined %}
+ {{ global_options.state_policy.established | nft_state_policy('established') }}
+{% endif %}
+{% if global_options.state_policy.invalid is vyos_defined %}
+ {{ global_options.state_policy.invalid | nft_state_policy('invalid') }}
+{% endif %}
+{% if global_options.state_policy.related is vyos_defined %}
+ {{ global_options.state_policy.related | nft_state_policy('related') }}
+{% endif %}
+ return
+ }
{% endif %}
}