Merge pull request #2388 from nicolas-fort/T5541-sagitta

T5541: firewall: re-add zone-based firewall.

6 files changed, 314 insertions, 185 deletions

diff --git a/data/templates/firewall/nftables-zone.j2 b/data/templates/firewall/nftables-zone.j2
new file mode 100644
index 000000000..124304e77
--- /dev/null
+++ b/data/templates/firewall/nftables-zone.j2
@@ -0,0 +1,68 @@
+{% 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 is vyos_defined %}
+{%             for from_zone, from_conf in zone_conf.from.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 0fbddfaa9..c2741a07f 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-zone.j2' as zone_tmpl %}
 
 flush chain raw FW_CONNTRACK
 flush chain ip6 raw FW_CONNTRACK
@@ -148,6 +149,10 @@ table ip vyos_filter {
 {%     endif %}
 {% endif %}
 {{ group_tmpl.groups(group, False) }}
+
+{% if zone is vyos_defined %}
+{{ zone_tmpl.zone_chains(zone, False) }}
+{% endif %}
 }
 
 {% if first_install is not vyos_defined %}
@@ -251,4 +256,9 @@ table ip6 vyos_filter {
 {%     endif %}
 {% endif %}
 {{ group_tmpl.groups(group, True) }}
+
+{% if zone is vyos_defined %}
+{{ zone_tmpl.zone_chains(zone, True) }}
+{% endif %}
+
 }
\ No newline at end of file
diff --git a/interface-definitions/firewall.xml.in b/interface-definitions/firewall.xml.in
index 127f4b7e7..b0e6358d8 100644
--- a/interface-definitions/firewall.xml.in
+++ b/interface-definitions/firewall.xml.in
@@ -306,6 +306,148 @@
           #include <include/firewall/ipv6-custom-name.xml.i>
         </children>
       </node>
+      <tagNode name="zone">
+        <properties>
+          <help>Zone-policy</help>
+          <valueHelp>
+            <format>txt</format>
+            <description>Zone name</description>
+          </valueHelp>
+          <constraint>
+            <regex>[a-zA-Z0-9][\w\-\.]*</regex>
+          </constraint>
+        </properties>
+        <children>
+          #include <include/generic-description.xml.i>
+          #include <include/firewall/enable-default-log.xml.i>
+          <leafNode name="default-action">
+            <properties>
+              <help>Default-action for traffic coming into this zone</help>
+              <completionHelp>
+                <list>drop reject</list>
+              </completionHelp>
+              <valueHelp>
+                <format>drop</format>
+                <description>Drop silently</description>
+              </valueHelp>
+              <valueHelp>
+                <format>reject</format>
+                <description>Drop and notify source</description>
+              </valueHelp>
+              <constraint>
+                <regex>(drop|reject)</regex>
+              </constraint>
+            </properties>
+            <defaultValue>drop</defaultValue>
+          </leafNode>
+          <tagNode name="from">
+            <properties>
+              <help>Zone from which to filter traffic</help>
+              <completionHelp>
+                <path>zone-policy zone</path>
+              </completionHelp>
+            </properties>
+            <children>
+              <node name="firewall">
+                <properties>
+                  <help>Firewall options</help>
+                </properties>
+                <children>
+                  <leafNode name="ipv6-name">
+                    <properties>
+                      <help>IPv6 firewall ruleset</help>
+                      <completionHelp>
+                        <path>firewall ipv6 name</path>
+                      </completionHelp>
+                    </properties>
+                  </leafNode>
+                  <leafNode name="name">
+                    <properties>
+                      <help>IPv4 firewall ruleset</help>
+                      <completionHelp>
+                        <path>firewall ipv4 name</path>
+                      </completionHelp>
+                    </properties>
+                  </leafNode>
+                </children>
+              </node>
+            </children>
+          </tagNode>
+          <leafNode name="interface">
+            <properties>
+              <help>Interface associated with zone</help>
+              <valueHelp>
+                <format>txt</format>
+                <description>Interface associated with zone</description>
+              </valueHelp>
+              <valueHelp>
+                <format>vrf</format>
+                <description>VRF associated with zone</description>
+              </valueHelp>
+              <completionHelp>
+                <script>${vyos_completion_dir}/list_interfaces</script>
+                <path>vrf name</path>
+              </completionHelp>
+              <multi/>
+            </properties>
+          </leafNode>
+          <node name="intra-zone-filtering">
+            <properties>
+              <help>Intra-zone filtering</help>
+            </properties>
+            <children>
+              <leafNode name="action">
+                <properties>
+                  <help>Action for intra-zone traffic</help>
+                  <completionHelp>
+                    <list>accept drop</list>
+                  </completionHelp>
+                  <valueHelp>
+                    <format>accept</format>
+                    <description>Accept traffic</description>
+                  </valueHelp>
+                  <valueHelp>
+                    <format>drop</format>
+                    <description>Drop silently</description>
+                  </valueHelp>
+                  <constraint>
+                    <regex>(accept|drop)</regex>
+                  </constraint>
+                </properties>
+              </leafNode>
+              <node name="firewall">
+                <properties>
+                  <help>Use the specified firewall chain</help>
+                </properties>
+                <children>
+                  <leafNode name="ipv6-name">
+                    <properties>
+                      <help>IPv6 firewall ruleset</help>
+                      <completionHelp>
+                        <path>firewall ipv6 name</path>
+                      </completionHelp>
+                    </properties>
+                  </leafNode>
+                  <leafNode name="name">
+                    <properties>
+                      <help>IPv4 firewall ruleset</help>
+                      <completionHelp>
+                        <path>firewall ipv4 name</path>
+                      </completionHelp>
+                    </properties>
+                  </leafNode>
+                </children>
+              </node>
+            </children>
+          </node>
+          <leafNode name="local-zone">
+            <properties>
+              <help>Zone to be local-zone</help>
+              <valueless/>
+            </properties>
+          </leafNode>
+        </children>
+      </tagNode>
     </children>
   </node>
 </interfaceDefinition>
diff --git a/smoketest/scripts/cli/test_firewall.py b/smoketest/scripts/cli/test_firewall.py
index 925cdd2bb..e8a122c8c 100755
--- a/smoketest/scripts/cli/test_firewall.py
+++ b/smoketest/scripts/cli/test_firewall.py
@@ -568,5 +568,42 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
                 with open(path, 'r') as f:
                     self.assertNotEqual(f.read().strip(), conf['default'], msg=path)
 
+### Zone
+    def test_zone_basic(self):
+        self.cli_set(['firewall', 'ipv4', 'name', 'smoketest', 'default-action', 'drop'])
+        self.cli_set(['firewall', 'zone', 'smoketest-eth0', 'interface', 'eth0'])
+        self.cli_set(['firewall', 'zone', 'smoketest-eth0', 'from', 'smoketest-local', 'firewall', 'name', 'smoketest'])
+        self.cli_set(['firewall', 'zone', 'smoketest-local', 'local-zone'])
+        self.cli_set(['firewall', 'zone', 'smoketest-local', 'from', 'smoketest-eth0', 'firewall', 'name', 'smoketest'])
+
+        self.cli_commit()
+
+        nftables_search = [
+            ['chain VYOS_ZONE_FORWARD'],
+            ['type filter hook forward priority filter + 1'],
+            ['chain VYOS_ZONE_OUTPUT'],
+            ['type filter hook output priority filter + 1'],
+            ['chain VYOS_ZONE_LOCAL'],
+            ['type filter hook input priority filter + 1'],
+            ['chain VZONE_smoketest-eth0'],
+            ['chain VZONE_smoketest-local_IN'],
+            ['chain VZONE_smoketest-local_OUT'],
+            ['oifname "eth0"', 'jump VZONE_smoketest-eth0'],
+            ['jump VZONE_smoketest-local_IN'],
+            ['jump VZONE_smoketest-local_OUT'],
+            ['iifname "eth0"', 'jump NAME_smoketest'],
+            ['oifname "eth0"', 'jump NAME_smoketest']
+        ]
+
+        nftables_output = cmd('sudo nft list table ip vyos_filter')
+
+        for search in nftables_search:
+            matched = False
+            for line in nftables_output.split("\n"):
+                if all(item in line for item in search):
+                    matched = True
+                    break
+            self.assertTrue(matched)
+
 if __name__ == '__main__':
     unittest.main(verbosity=2)
diff --git a/src/conf_mode/firewall.py b/src/conf_mode/firewall.py
index c3b1ee015..1fbdde389 100755
--- a/src/conf_mode/firewall.py
+++ b/src/conf_mode/firewall.py
@@ -327,6 +327,63 @@ def verify(firewall):
                         for rule_id, rule_conf in name_conf['rule'].items():
                             verify_rule(firewall, rule_conf, True)
 
+    #### ZONESSSS
+    local_zone = False
+    zone_interfaces = []
+
+    if 'zone' in firewall:
+        for zone, zone_conf in firewall['zone'].items():
+            if 'local_zone' not in zone_conf and 'interface' not in zone_conf:
+                raise ConfigError(f'Zone "{zone}" has no interfaces and is not the local zone')
+
+            if 'local_zone' in zone_conf:
+                if local_zone:
+                    raise ConfigError('There cannot be multiple local zones')
+                if 'interface' in zone_conf:
+                    raise ConfigError('Local zone cannot have interfaces assigned')
+                if 'intra_zone_filtering' in zone_conf:
+                    raise ConfigError('Local zone cannot use intra-zone-filtering')
+                local_zone = True
+
+            if 'interface' in zone_conf:
+                found_duplicates = [intf for intf in zone_conf['interface'] if intf in zone_interfaces]
+
+                if found_duplicates:
+                    raise ConfigError(f'Interfaces cannot be assigned to multiple zones')
+
+                zone_interfaces += zone_conf['interface']
+
+            if 'intra_zone_filtering' in zone_conf:
+                intra_zone = zone_conf['intra_zone_filtering']
+
+                if len(intra_zone) > 1:
+                    raise ConfigError('Only one intra-zone-filtering action must be specified')
+
+                if 'firewall' in intra_zone:
+                    v4_name = dict_search_args(intra_zone, 'firewall', 'name')
+                    if v4_name and not dict_search_args(firewall, 'ipv4', 'name', v4_name):
+                        raise ConfigError(f'Firewall name "{v4_name}" does not exist')
+
+                    v6_name = dict_search_args(intra_zone, 'firewall', 'ipv6_name')
+                    if v6_name and not dict_search_args(firewall, 'ipv6', 'name', v6_name):
+                        raise ConfigError(f'Firewall ipv6-name "{v6_name}" does not exist')
+
+                    if not v4_name and not v6_name:
+                        raise ConfigError('No firewall names specified for intra-zone-filtering')
+
+            if 'from' in zone_conf:
+                for from_zone, from_conf in zone_conf['from'].items():
+                    if from_zone not in firewall['zone']:
+                        raise ConfigError(f'Zone "{zone}" refers to a non-existent or deleted zone "{from_zone}"')
+
+                    v4_name = dict_search_args(from_conf, 'firewall', 'name')
+                    if v4_name and not dict_search_args(firewall, 'ipv4', 'name', v4_name):
+                        raise ConfigError(f'Firewall name "{v4_name}" does not exist')
+
+                    v6_name = dict_search_args(from_conf, 'firewall', 'ipv6_name')
+                    if v6_name and not dict_search_args(firewall, 'ipv6', 'name', v6_name):
+                        raise ConfigError(f'Firewall ipv6-name "{v6_name}" does not exist')
+
     return None
 
 def generate(firewall):
diff --git a/src/migration-scripts/firewall/10-to-11 b/src/migration-scripts/firewall/10-to-11
index 716c5a240..b739fb139 100755
--- a/src/migration-scripts/firewall/10-to-11
+++ b/src/migration-scripts/firewall/10-to-11
@@ -181,191 +181,6 @@ if config.exists(base + ['interface']):
 
     config.delete(base + ['interface'])
 
-
-### Migration of zones:
-### User interface groups 
-if config.exists(base + ['zone']):
-    inp_ipv4_rule = 101
-    inp_ipv6_rule = 101
-    fwd_ipv4_rule = 101
-    fwd_ipv6_rule = 101
-    out_ipv4_rule = 101
-    out_ipv6_rule = 101
-    local_zone = 'False'
-
-    for zone in config.list_nodes(base + ['zone']):
-        if config.exists(base + ['zone', zone, 'local-zone']):
-            local_zone = 'True'
-            # Add default-action== accept for compatibility reasons:
-            config.set(base + ['ipv4', 'input', 'filter', 'default-action'], value='accept')
-            config.set(base + ['ipv6', 'input', 'filter', 'default-action'], value='accept')
-            config.set(base + ['ipv4', 'output', 'filter', 'default-action'], value='accept')
-            config.set(base + ['ipv6', 'output', 'filter', 'default-action'], value='accept')
-            for from_zone in config.list_nodes(base + ['zone', zone, 'from']):
-                group_name = 'IG_' + from_zone
-                if config.exists(base + ['zone', zone, 'from', from_zone, 'firewall', 'name']):
-                    # ipv4 input ruleset
-                    target_ipv4_chain = config.return_value(base + ['zone', zone, 'from', from_zone, 'firewall', 'name'])
-                    config.set(base + ['ipv4', 'input', 'filter', 'rule'])
-                    config.set_tag(base + ['ipv4', 'input', 'filter', 'rule'])
-                    config.set(base + ['ipv4', 'input', 'filter', 'rule', inp_ipv4_rule, 'inbound-interface', 'interface-group'], value=group_name)
-                    config.set(base + ['ipv4', 'input', 'filter', 'rule', inp_ipv4_rule, 'action'], value='jump')
-                    config.set(base + ['ipv4', 'input', 'filter', 'rule', inp_ipv4_rule, 'jump-target'], value=target_ipv4_chain)
-                    inp_ipv4_rule = inp_ipv4_rule + 5
-                if config.exists(base + ['zone', zone, 'from', from_zone, 'firewall', 'ipv6-name']):
-                    # ipv6 input ruleset
-                    target_ipv6_chain = config.return_value(base + ['zone', zone, 'from', from_zone, 'firewall', 'ipv6-name'])
-                    config.set(base + ['ipv6', 'input', 'filter', 'rule'])
-                    config.set_tag(base + ['ipv6', 'input', 'filter', 'rule'])
-                    config.set(base + ['ipv6', 'input', 'filter', 'rule', inp_ipv6_rule, 'inbound-interface', 'interface-group'], value=group_name)
-                    config.set(base + ['ipv6', 'input', 'filter', 'rule', inp_ipv6_rule, 'action'], value='jump')
-                    config.set(base + ['ipv6', 'input', 'filter', 'rule', inp_ipv6_rule, 'jump-target'], value=target_ipv6_chain)
-                    inp_ipv6_rule = inp_ipv6_rule + 5
-
-            # Migrate: set firewall zone <zone> default-action <action>
-            # Options: drop or reject. If not specified, is drop
-            if config.exists(base + ['zone', zone, 'default-action']):
-                local_def_action = config.return_value(base + ['zone', zone, 'default-action'])
-            else:
-                local_def_action = 'drop'
-            config.set(base + ['ipv4', 'input', 'filter', 'rule'])
-            config.set_tag(base + ['ipv4', 'input', 'filter', 'rule'])
-            config.set(base + ['ipv4', 'input', 'filter', 'rule', inp_ipv4_rule, 'action'], value=local_def_action)
-            config.set(base + ['ipv6', 'input', 'filter', 'rule'])
-            config.set_tag(base + ['ipv6', 'input', 'filter', 'rule'])
-            config.set(base + ['ipv6', 'input', 'filter', 'rule', inp_ipv6_rule, 'action'], value=local_def_action)
-            if config.exists(base + ['zone', zone, 'enable-default-log']):
-                config.set(base + ['ipv4', 'input', 'filter', 'rule', inp_ipv4_rule, 'log'], value='enable')
-                config.set(base + ['ipv6', 'input', 'filter', 'rule', inp_ipv6_rule, 'log'], value='enable')
-
-        else:
-        # It's not a local zone
-            group_name = 'IG_' + zone
-            # Add default-action== accept for compatibility reasons:
-            config.set(base + ['ipv4', 'forward', 'filter', 'default-action'], value='accept')
-            config.set(base + ['ipv6', 'forward', 'filter', 'default-action'], value='accept')
-            # intra-filtering migration. By default accept
-            intra_zone_ipv4_action = 'accept'
-            intra_zone_ipv6_action = 'accept'
-            
-            if config.exists(base + ['zone', zone, 'intra-zone-filtering', 'action']):
-                intra_zone_ipv4_action = config.return_value(base + ['zone', zone, 'intra-zone-filtering', 'action'])
-                intra_zone_ipv6_action = intra_zone_ipv4_action
-            else:
-                if config.exists(base + ['zone', zone, 'intra-zone-filtering', 'firewall', 'name']):
-                    intra_zone_ipv4_target = config.return_value(base + ['zone', zone, 'intra-zone-filtering', 'firewall', 'name'])
-                    intra_zone_ipv4_action = 'jump'
-                if config.exists(base + ['zone', zone, 'intra-zone-filtering', 'firewall', 'ipv6-name']):
-                    intra_zone_ipv6_target = config.return_value(base + ['zone', zone, 'intra-zone-filtering', 'firewall', 'ipv6-name'])
-                    intra_zone_ipv6_action = 'jump'
-            config.set(base + ['ipv4', 'forward', 'filter', 'rule'])
-            config.set_tag(base + ['ipv4', 'forward', 'filter', 'rule'])
-            config.set(base + ['ipv4', 'forward', 'filter', 'rule', fwd_ipv4_rule, 'outbound-interface', 'interface-group'], value=group_name)
-            config.set(base + ['ipv4', 'forward', 'filter', 'rule', fwd_ipv4_rule, 'inbound-interface', 'interface-group'], value=group_name)
-            config.set(base + ['ipv4', 'forward', 'filter', 'rule', fwd_ipv4_rule, 'action'], value=intra_zone_ipv4_action)
-            config.set(base + ['ipv6', 'forward', 'filter', 'rule'])
-            config.set_tag(base + ['ipv6', 'forward', 'filter', 'rule'])
-            config.set(base + ['ipv6', 'forward', 'filter', 'rule', fwd_ipv6_rule, 'outbound-interface', 'interface-group'], value=group_name)
-            config.set(base + ['ipv6', 'forward', 'filter', 'rule', fwd_ipv6_rule, 'inbound-interface', 'interface-group'], value=group_name)
-            config.set(base + ['ipv6', 'forward', 'filter', 'rule', fwd_ipv6_rule, 'action'], value=intra_zone_ipv6_action)
-            if intra_zone_ipv4_action == 'jump':
-                if config.exists(base + ['zone', zone, 'intra-zone-filtering', 'firewall', 'name']):
-                    intra_zone_ipv4_target = config.return_value(base + ['zone', zone, 'intra-zone-filtering', 'firewall', 'name'])
-                    config.set(base + ['ipv4', 'forward', 'filter', 'rule', fwd_ipv4_rule, 'jump-target'], value=intra_zone_ipv4_target)
-            if intra_zone_ipv6_action == 'jump':
-                if config.exists(base + ['zone', zone, 'intra-zone-filtering', 'firewall', 'ipv6-name']):
-                    intra_zone_ipv6_target = config.return_value(base + ['zone', zone, 'intra-zone-filtering', 'firewall', 'ipv6-name'])
-                    config.set(base + ['ipv6', 'forward', 'filter', 'rule', fwd_ipv6_rule, 'jump-target'], value=intra_zone_ipv6_target)
-            fwd_ipv4_rule = fwd_ipv4_rule + 5
-            fwd_ipv6_rule = fwd_ipv6_rule + 5
-
-            if config.exists(base + ['zone', zone, 'interface']):
-                # Create interface group IG_<zone>
-                group_name = 'IG_' + zone
-                config.set(base + ['group', 'interface-group'], value=group_name)
-                config.set_tag(base + ['group', 'interface-group'])
-                for iface in config.return_values(base + ['zone', zone, 'interface']):
-                    config.set(base + ['group', 'interface-group', group_name, 'interface'], value=iface, replace=False)
-
-            if config.exists(base + ['zone', zone, 'from']):
-                for from_zone in config.list_nodes(base + ['zone', zone, 'from']):
-                    from_group = 'IG_' + from_zone
-                    if config.exists(base + ['zone', zone, 'from', from_zone, 'firewall', 'name']):
-                        target_ipv4_chain = config.return_value(base + ['zone', zone, 'from', from_zone, 'firewall', 'name'])
-                        if config.exists(base + ['zone', from_zone, 'local-zone']):
-                            # It's from LOCAL zone -> Output filtering 
-                            config.set(base + ['ipv4', 'output', 'filter', 'rule'])
-                            config.set_tag(base + ['ipv4', 'output', 'filter', 'rule'])
-                            config.set(base + ['ipv4', 'output', 'filter', 'rule', out_ipv4_rule, 'outbound-interface', 'interface-group'], value=group_name)
-                            config.set(base + ['ipv4', 'output', 'filter', 'rule', out_ipv4_rule, 'action'], value='jump')
-                            config.set(base + ['ipv4', 'output', 'filter', 'rule', out_ipv4_rule, 'jump-target'], value=target_ipv4_chain)
-                            out_ipv4_rule = out_ipv4_rule + 5
-                        else:
-                            # It's not LOCAL zone -> forward filtering
-                            config.set(base + ['ipv4', 'forward', 'filter', 'rule'])
-                            config.set_tag(base + ['ipv4', 'forward', 'filter', 'rule'])
-                            config.set(base + ['ipv4', 'forward', 'filter', 'rule', fwd_ipv4_rule, 'outbound-interface', 'interface-group'], value=group_name)
-                            config.set(base + ['ipv4', 'forward', 'filter', 'rule', fwd_ipv4_rule, 'inbound-interface', 'interface-group'], value=from_group)
-                            config.set(base + ['ipv4', 'forward', 'filter', 'rule', fwd_ipv4_rule, 'action'], value='jump')
-                            config.set(base + ['ipv4', 'forward', 'filter', 'rule', fwd_ipv4_rule, 'jump-target'], value=target_ipv4_chain)
-                            fwd_ipv4_rule = fwd_ipv4_rule + 5
-                    if config.exists(base + ['zone', zone, 'from', from_zone, 'firewall', 'ipv6-name']):
-                        target_ipv6_chain = config.return_value(base + ['zone', zone, 'from', from_zone, 'firewall', 'ipv6-name'])
-                        if config.exists(base + ['zone', from_zone, 'local-zone']):
-                            # It's from LOCAL zone -> Output filtering
-                            config.set(base + ['ipv6', 'output', 'filter', 'rule'])
-                            config.set_tag(base + ['ipv6', 'output', 'filter', 'rule'])
-                            config.set(base + ['ipv6', 'output', 'filter', 'rule', out_ipv6_rule, 'outbound-interface', 'interface-group'], value=group_name)
-                            config.set(base + ['ipv6', 'output', 'filter', 'rule', out_ipv6_rule, 'action'], value='jump')
-                            config.set(base + ['ipv6', 'output', 'filter', 'rule', out_ipv6_rule, 'jump-target'], value=target_ipv6_chain)
-                            out_ipv6_rule = out_ipv6_rule + 5
-                        else:
-                            # It's not LOCAL zone -> forward filtering
-                            config.set(base + ['ipv6', 'forward', 'filter', 'rule'])
-                            config.set_tag(base + ['ipv6', 'forward', 'filter', 'rule'])
-                            config.set(base + ['ipv6', 'forward', 'filter', 'rule', fwd_ipv6_rule, 'outbound-interface', 'interface-group'], value=group_name)
-                            config.set(base + ['ipv6', 'forward', 'filter', 'rule', fwd_ipv6_rule, 'inbound-interface', 'interface-group'], value=from_group)
-                            config.set(base + ['ipv6', 'forward', 'filter', 'rule', fwd_ipv6_rule, 'action'], value='jump')
-                            config.set(base + ['ipv6', 'forward', 'filter', 'rule', fwd_ipv6_rule, 'jump-target'], value=target_ipv6_chain)
-                            fwd_ipv6_rule = fwd_ipv6_rule + 5
-
-            ## Now need to migrate: set firewall zone <zone> default-action <action>    # action=drop if not specified.
-            if config.exists(base + ['zone', zone, 'default-action']):
-                def_action = config.return_value(base + ['zone', zone, 'default-action'])
-            else:
-                def_action = 'drop'
-            config.set(base + ['ipv4', 'forward', 'filter', 'rule'])
-            config.set_tag(base + ['ipv4', 'forward', 'filter', 'rule'])
-            config.set(base + ['ipv4', 'forward', 'filter', 'rule', fwd_ipv4_rule, 'outbound-interface', 'interface-group'], value=group_name)
-            config.set(base + ['ipv4', 'forward', 'filter', 'rule', fwd_ipv4_rule, 'action'], value=def_action)
-            description = 'zone_' + zone + ' default-action'
-            config.set(base + ['ipv4', 'forward', 'filter', 'rule', fwd_ipv4_rule, 'description'], value=description)
-            config.set(base + ['ipv6', 'forward', 'filter', 'rule'])
-            config.set_tag(base + ['ipv6', 'forward', 'filter', 'rule'])
-            config.set(base + ['ipv6', 'forward', 'filter', 'rule', fwd_ipv6_rule, 'outbound-interface', 'interface-group'], value=group_name)
-            config.set(base + ['ipv6', 'forward', 'filter', 'rule', fwd_ipv6_rule, 'action'], value=def_action)
-            config.set(base + ['ipv6', 'forward', 'filter', 'rule', fwd_ipv6_rule, 'description'], value=description)
-
-            if config.exists(base + ['zone', zone, 'enable-default-log']):
-                config.set(base + ['ipv4', 'forward', 'filter', 'rule', fwd_ipv4_rule, 'log'], value='enable')
-                config.set(base + ['ipv6', 'forward', 'filter', 'rule', fwd_ipv6_rule, 'log'], value='enable')
-            fwd_ipv4_rule = fwd_ipv4_rule + 5
-            fwd_ipv6_rule = fwd_ipv6_rule + 5
-
-    # Migrate default-action (force to be drop in output chain) if local zone is defined
-    if local_zone == 'True':
-        # General drop in output change if needed
-        config.set(base + ['ipv4', 'output', 'filter', 'rule'])
-        config.set_tag(base + ['ipv4', 'output', 'filter', 'rule'])
-        config.set(base + ['ipv4', 'output', 'filter', 'rule', out_ipv4_rule, 'action'], value=local_def_action)
-        config.set(base + ['ipv6', 'output', 'filter', 'rule'])
-        config.set_tag(base + ['ipv6', 'output', 'filter', 'rule'])
-        config.set(base + ['ipv6', 'output', 'filter', 'rule', out_ipv6_rule, 'action'], value=local_def_action)
-
-    config.delete(base + ['zone'])
-
-###### END migration zones
-
 try:
     with open(file_name, 'w') as f:
         f.write(config.to_string())