firewall: T5729: T5681: T5217: backport subsystem from current branch

This is a combined backport for all accumulated changes done to the firewall
subsystem on the current branch.

6 files changed, 18 insertions, 69 deletions

diff --git a/data/templates/firewall/nftables-bridge.j2 b/data/templates/firewall/nftables-bridge.j2
index 1a4ad2ed9..dec027bf9 100644
--- a/data/templates/firewall/nftables-bridge.j2
+++ b/data/templates/firewall/nftables-bridge.j2
@@ -2,9 +2,8 @@
 {% 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 }};
+        type filter hook forward priority {{ prior }}; policy accept;
 {%         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') }}
@@ -13,6 +12,7 @@
 {%                 endif %}
 {%             endfor %}
 {%         endif %}
+    {{ conf | nft_default_rule('FWD-filter', 'bri') }}
     }
 {%     endfor %}
 {% endif %}
@@ -28,8 +28,8 @@
 {%                 endif %}
 {%             endfor %}
 {%         endif %}
-    {{ conf | nft_default_rule(name_text) }}
+    {{ conf | nft_default_rule(name_text, 'bri') }}
     }
 {%     endfor %}
 {% endif %}
-{% endmacro %}
\ No newline at end of file
+{% endmacro %}
diff --git a/data/templates/firewall/nftables-nat.j2 b/data/templates/firewall/nftables-nat.j2
index dcf28da88..4254f6a0e 100644
--- a/data/templates/firewall/nftables-nat.j2
+++ b/data/templates/firewall/nftables-nat.j2
@@ -2,27 +2,6 @@
 
 {% import 'firewall/nftables-defines.j2' as group_tmpl %}
 
-{% if helper_functions is vyos_defined('remove') %}
-{# NAT if going to be disabled - remove rules and targets from nftables #}
-{%     set base_command = 'delete rule ip raw' %}
-{{ base_command }} PREROUTING handle {{ pre_ct_ignore }}
-{{ base_command }} OUTPUT     handle {{ out_ct_ignore }}
-{{ base_command }} PREROUTING handle {{ pre_ct_conntrack }}
-{{ base_command }} OUTPUT     handle {{ out_ct_conntrack }}
-
-delete chain ip raw NAT_CONNTRACK
-
-{% elif helper_functions is vyos_defined('add') %}
-{# NAT if enabled - add targets to nftables #}
-add chain ip raw NAT_CONNTRACK
-add rule ip raw NAT_CONNTRACK counter accept
-{%     set base_command = 'add rule ip raw' %}
-{{ base_command }} PREROUTING position {{ pre_ct_ignore }}    counter jump VYOS_CT_HELPER
-{{ base_command }} OUTPUT     position {{ out_ct_ignore }}    counter jump VYOS_CT_HELPER
-{{ base_command }} PREROUTING position {{ pre_ct_conntrack }} counter jump NAT_CONNTRACK
-{{ base_command }} OUTPUT     position {{ out_ct_conntrack }} counter jump NAT_CONNTRACK
-{% endif %}
-
 {% if first_install is not vyos_defined %}
 delete table ip vyos_nat
 {% endif %}
diff --git a/data/templates/firewall/nftables-nat66.j2 b/data/templates/firewall/nftables-nat66.j2
index 27b3eec88..67eb2c109 100644
--- a/data/templates/firewall/nftables-nat66.j2
+++ b/data/templates/firewall/nftables-nat66.j2
@@ -1,22 +1,5 @@
 #!/usr/sbin/nft -f
 
-{% if helper_functions is vyos_defined('remove') %}
-{# NAT if going to be disabled - remove rules and targets from nftables #}
-{%     set base_command = 'delete rule ip6 raw' %}
-{{ base_command }} PREROUTING handle {{ pre_ct_conntrack }}
-{{ base_command }} OUTPUT handle {{ out_ct_conntrack }}
-
-delete chain ip6 raw NAT_CONNTRACK
-
-{% elif helper_functions is vyos_defined('add') %}
-{# NAT if enabled - add targets to nftables #}
-add chain ip6 raw NAT_CONNTRACK
-add rule ip6 raw NAT_CONNTRACK counter accept
-{%     set base_command = 'add rule ip6 raw' %}
-{{ base_command }} PREROUTING position {{ pre_ct_conntrack }} counter jump NAT_CONNTRACK
-{{ base_command }} OUTPUT     position {{ out_ct_conntrack }} counter jump NAT_CONNTRACK
-{% endif %}
-
 {% if first_install is not vyos_defined %}
 delete table ip6 vyos_nat
 {% endif %}
diff --git a/data/templates/firewall/nftables-offload.j2 b/data/templates/firewall/nftables-offload.j2
index 087fd141c..a893e05b2 100644
--- a/data/templates/firewall/nftables-offload.j2
+++ b/data/templates/firewall/nftables-offload.j2
@@ -6,4 +6,4 @@
 {% endif %}
         counter
     }
-{% endmacro %}
\ No newline at end of file
+{% endmacro %}
diff --git a/data/templates/firewall/nftables-zone.j2 b/data/templates/firewall/nftables-zone.j2
index 506ad815e..e78725079 100644
--- a/data/templates/firewall/nftables-zone.j2
+++ b/data/templates/firewall/nftables-zone.j2
@@ -44,7 +44,7 @@
         iifname { {{ zone[from_zone].interface | join(",") }} } counter return
 {%             endfor %}
 {%         endif %}
-        {{ zone_conf | nft_default_rule('zone_' + zone_name) }}
+        {{ zone_conf | nft_default_rule('zone_' + zone_name, family) }}
     }
     chain VZONE_{{ zone_name }}_OUT {
         oifname lo counter return
@@ -54,7 +54,7 @@
         oifname { {{ zone[from_zone].interface | join(",") }} } counter return
 {%             endfor %}
 {%         endif %}
-        {{ zone_conf | nft_default_rule('zone_' + zone_name) }}
+        {{ zone_conf | nft_default_rule('zone_' + zone_name, family) }}
     }
 {%     else %}
     chain VZONE_{{ zone_name }} {
@@ -70,7 +70,7 @@
 {%                 endif %}
 {%             endfor %}
 {%         endif %}
-        {{ zone_conf | nft_default_rule('zone_' + zone_name) }}
+        {{ zone_conf | nft_default_rule('zone_' + zone_name, family) }}
     }
 {%     endif %}
 {% endfor %}
diff --git a/data/templates/firewall/nftables.j2 b/data/templates/firewall/nftables.j2
index 4851e3a05..833df3a67 100644
--- a/data/templates/firewall/nftables.j2
+++ b/data/templates/firewall/nftables.j2
@@ -5,17 +5,10 @@
 {% import 'firewall/nftables-offload.j2' as offload_tmpl %}
 {% import 'firewall/nftables-zone.j2' as zone_tmpl %}
 
-flush chain raw FW_CONNTRACK
-flush chain ip6 raw FW_CONNTRACK
-
 flush chain raw vyos_global_rpfilter
 flush chain ip6 raw vyos_global_rpfilter
 
 table raw {
-    chain FW_CONNTRACK {
-        {{ ipv4_conntrack_action }}
-    }
-
     chain vyos_global_rpfilter {
 {% if global_options.source_validation is vyos_defined('loose') %}
         fib saddr oif 0 counter drop
@@ -27,10 +20,6 @@ table raw {
 }
 
 table ip6 raw {
-    chain FW_CONNTRACK {
-        {{ ipv6_conntrack_action }}
-    }
-
     chain vyos_global_rpfilter {
 {% if global_options.ipv6_source_validation is vyos_defined('loose') %}
         fib saddr oif 0 counter drop
@@ -68,7 +57,7 @@ table ip vyos_filter {
 {%                     endif %}
 {%                 endfor %}
 {%             endif %}
-        {{ conf | nft_default_rule('FWD-filter') }}
+        {{ conf | nft_default_rule('FWD-filter', 'ipv4') }}
     }
 {%         endfor %}
 {%     endif %}
@@ -88,7 +77,7 @@ table ip vyos_filter {
 {%                     endif %}
 {%                 endfor %}
 {%             endif %}
-        {{ conf | nft_default_rule('INP-filter') }}
+        {{ conf | nft_default_rule('INP-filter', 'ipv4') }}
     }
 {%         endfor %}
 {%     endif %}
@@ -108,7 +97,7 @@ table ip vyos_filter {
 {%                     endif %}
 {%                 endfor %}
 {%             endif %}
-        {{ conf | nft_default_rule('OUT-filter') }}
+        {{ conf | nft_default_rule('OUT-filter', 'ipv4') }}
     }
 {%         endfor %}
 {%     endif %}
@@ -128,7 +117,7 @@ table ip vyos_filter {
 {%                     endif %}
 {%                 endfor %}
 {%             endif %}
-        {{ conf | nft_default_rule('PRE-filter') }}
+        {{ conf | nft_default_rule('PRE-filter', 'ipv4') }}
     }
 {%         endfor %}
 {%     endif %}
@@ -144,7 +133,7 @@ table ip vyos_filter {
 {%                     endif %}
 {%                 endfor %}
 {%             endif %}
-        {{ conf | nft_default_rule(name_text) }}
+        {{ conf | nft_default_rule(name_text, 'ipv4') }}
     }
 {%         endfor %}
 {%     endif %}
@@ -219,7 +208,7 @@ table ip6 vyos_filter {
 {%                     endif %}
 {%                 endfor %}
 {%             endif %}
-        {{ conf | nft_default_rule('FWD-filter', ipv6=True) }}
+        {{ conf | nft_default_rule('FWD-filter', 'ipv6') }}
     }
 {%         endfor %}
 {%     endif %}
@@ -239,7 +228,7 @@ table ip6 vyos_filter {
 {%                     endif %}
 {%                 endfor %}
 {%             endif %}
-        {{ conf | nft_default_rule('INP-filter', ipv6=True) }}
+        {{ conf | nft_default_rule('INP-filter', 'ipv6') }}
     }
 {%         endfor %}
 {%     endif %}
@@ -259,7 +248,7 @@ table ip6 vyos_filter {
 {%                     endif %}
 {%                 endfor %}
 {%             endif %}
-        {{ conf | nft_default_rule('OUT-filter', ipv6=True) }}
+        {{ conf | nft_default_rule('OUT-filter', 'ipv6') }}
     }
 {%         endfor %}
 {%     endif %}
@@ -280,7 +269,7 @@ table ip6 vyos_filter {
 {%                     endif %}
 {%                 endfor %}
 {%             endif %}
-        {{ conf | nft_default_rule(name_text, ipv6=True) }}
+        {{ conf | nft_default_rule(name_text, 'ipv6') }}
     }
 {%         endfor %}
 {%     endif %}
@@ -308,7 +297,6 @@ table ip6 vyos_filter {
 {%     endif %}
 {% endif %}
 {{ group_tmpl.groups(group, True, True) }}
-
 {% if zone is vyos_defined %}
 {{ zone_tmpl.zone_chains(zone, True, global_options.state_policy is vyos_defined) }}
 {% endif %}
@@ -326,7 +314,6 @@ table ip6 vyos_filter {
         return
     }
 {% endif %}
-
 }
 
 ## Bridge Firewall
@@ -337,4 +324,4 @@ table bridge vyos_filter {
 {{ bridge_tmpl.bridge(bridge) }}
 {{ group_tmpl.groups(group, False, False) }}
 
-}
\ No newline at end of file
+}