Merge pull request #2362 from nicolas-fort/T5541

T5541: firewall zone: re add firewall zone-base firewall

2 files changed, 78 insertions, 0 deletions

diff --git a/data/templates/firewall/nftables-zone.j2 b/data/templates/firewall/nftables-zone.j2
new file mode 100644
index 000000000..1e9351f97
--- /dev/null
+++ b/data/templates/firewall/nftables-zone.j2
@@ -0,0 +1,69 @@
+
+{% macro zone_chains(zone, ipv6=False) %}
+{% set fw_name = 'ipv6_name' if ipv6 else 'name' %}
+{% set suffix = '6' if ipv6 else '' %}
+    chain VYOS_ZONE_FORWARD {
+        type filter hook forward priority 1; policy accept;
+{% 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 }}
+{%     endif %}
+{% endfor %}
+    }
+    chain VYOS_ZONE_LOCAL {
+        type filter hook input priority 1; policy accept;
+{% for zone_name, zone_conf in zone.items() %}
+{%     if 'local_zone' in zone_conf %}
+        counter jump VZONE_{{ zone_name }}_IN
+{%     endif %}
+{% endfor %}
+    }
+    chain VYOS_ZONE_OUTPUT {
+        type filter hook output priority 1; policy accept;
+{% for zone_name, zone_conf in zone.items() %}
+{%     if 'local_zone' in zone_conf %}
+        counter jump VZONE_{{ zone_name }}_OUT
+{%     endif %}
+{% endfor %}
+    }
+{% for zone_name, zone_conf in zone.items() %}
+{%     if zone_conf.local_zone is vyos_defined %}
+    chain VZONE_{{ zone_name }}_IN {
+        iifname lo counter return
+{%         if zone_conf.from is vyos_defined %}
+{%             for from_zone, from_conf in zone_conf.from.items() if from_conf.firewall[fw_name] is vyos_defined %}
+        iifname { {{ zone[from_zone].interface | join(",") }} } counter jump NAME{{ suffix }}_{{ from_conf.firewall[fw_name] }}
+        iifname { {{ zone[from_zone].interface | join(",") }} } counter return
+{%             endfor %}
+{%         endif %}
+        {{ zone_conf | nft_default_rule('zone_' + zone_name) }}
+    }
+    chain VZONE_{{ zone_name }}_OUT {
+        oifname lo counter return
+{%         if zone_conf.from_local is vyos_defined %}
+{%             for from_zone, from_conf in zone_conf.from_local.items() if from_conf.firewall[fw_name] is vyos_defined %}
+        oifname { {{ zone[from_zone].interface | join(",") }} } counter jump NAME{{ suffix }}_{{ from_conf.firewall[fw_name] }}
+        oifname { {{ zone[from_zone].interface | join(",") }} } counter return
+{%             endfor %}
+{%         endif %}
+        {{ zone_conf | nft_default_rule('zone_' + zone_name) }}
+    }
+{%     else %}
+    chain VZONE_{{ zone_name }} {
+        iifname { {{ zone_conf.interface | join(",") }} } counter {{ zone_conf | nft_intra_zone_action(ipv6) }}
+{%         if zone_conf.intra_zone_filtering is vyos_defined %}
+        iifname { {{ zone_conf.interface | join(",") }} } counter return
+{%         endif %}
+{%         if zone_conf.from is vyos_defined %}
+{%             for from_zone, from_conf in zone_conf.from.items() if from_conf.firewall[fw_name] is vyos_defined %}
+{%                 if zone[from_zone].local_zone is not defined %}
+        iifname { {{ zone[from_zone].interface | join(",") }} } counter jump NAME{{ suffix }}_{{ from_conf.firewall[fw_name] }}
+        iifname { {{ zone[from_zone].interface | join(",") }} } counter return
+{%                 endif %}
+{%             endfor %}
+{%         endif %}
+        {{ zone_conf | nft_default_rule('zone_' + zone_name) }}
+    }
+{%     endif %}
+{% endfor %}
+{% endmacro %}
\ No newline at end of file
diff --git a/data/templates/firewall/nftables.j2 b/data/templates/firewall/nftables.j2
index 1b46fb5d4..e24a9655d 100644
--- a/data/templates/firewall/nftables.j2
+++ b/data/templates/firewall/nftables.j2
@@ -3,6 +3,7 @@
 {% import 'firewall/nftables-defines.j2' as group_tmpl %}
 {% import 'firewall/nftables-bridge.j2' as bridge_tmpl %}
 {% import 'firewall/nftables-offload.j2' as offload_tmpl %}
+{% import 'firewall/nftables-zone.j2' as zone_tmpl %}
 
 flush chain raw vyos_global_rpfilter
 flush chain ip6 raw vyos_global_rpfilter
@@ -151,6 +152,10 @@ table ip vyos_filter {
 {%     endif %}
 {% endif %}
 {{ group_tmpl.groups(group, False, True) }}
+
+{% if zone is vyos_defined %}
+{{ zone_tmpl.zone_chains(zone, False) }}
+{% endif %}
 }
 
 {% if first_install is not vyos_defined %}
@@ -260,6 +265,9 @@ table ip6 vyos_filter {
 {%     endif %}
 {% endif %}
 {{ group_tmpl.groups(group, True, True) }}
+{% if zone is vyos_defined %}
+{{ zone_tmpl.zone_chains(zone, True) }}
+{% endif %}
 }
 
 ## Bridge Firewall
@@ -269,4 +277,5 @@ delete table bridge vyos_filter
 table bridge vyos_filter {
 {{ bridge_tmpl.bridge(bridge) }}
 {{ group_tmpl.groups(group, False, False) }}
+
 }