From 734d84f696944419a2d6f11bc16dda03900add34 Mon Sep 17 00:00:00 2001
From: sarthurdev <965089+sarthurdev@users.noreply.github.com>
Date: Thu, 14 Sep 2023 03:01:56 +0200
Subject: conntrack: T5571: Refactor conntrack to be independent conf script
 from firewall, nat, nat66

---
 data/templates/firewall/nftables-nat.j2   | 21 ---------------------
 data/templates/firewall/nftables-nat66.j2 | 17 -----------------
 data/templates/firewall/nftables.j2       | 22 +++++-----------------
 3 files changed, 5 insertions(+), 55 deletions(-)

(limited to 'data/templates/firewall')

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.j2 b/data/templates/firewall/nftables.j2
index db010257d..1564b3ef8 100644
--- a/data/templates/firewall/nftables.j2
+++ b/data/templates/firewall/nftables.j2
@@ -4,17 +4,10 @@
 {% import 'firewall/nftables-bridge.j2' as bridge_tmpl %}
 {% import 'firewall/nftables-offload.j2' as offload %}
 
-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
@@ -26,10 +19,6 @@ 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
@@ -273,23 +262,22 @@ table bridge vyos_filter {
 }
 {% endif %}
 
-table inet vyos_offload
+{% if first_install is not vyos_defined %}
 delete table inet vyos_offload
+{% endif %}
 table inet vyos_offload {
-{% if flowtable_enabled %}
-{%     if global_options.flow_offload.hardware.interface is vyos_defined %}
+{% if global_options.flow_offload.hardware.interface is vyos_defined %}
     {{- offload.render_flowtable('VYOS_FLOWTABLE_hardware', global_options.flow_offload.hardware.interface | list, priority='filter - 2', hardware_offload=true) }}
     chain VYOS_OFFLOAD_hardware {
         type filter hook forward priority filter - 2; policy accept;
         ct state { established, related } meta l4proto { tcp, udp } flow add @VYOS_FLOWTABLE_hardware
     }
-{%     endif %}
-{%     if global_options.flow_offload.software.interface is vyos_defined %}
+{% endif %}
+{% if global_options.flow_offload.software.interface is vyos_defined %}
     {{- offload.render_flowtable('VYOS_FLOWTABLE_software', global_options.flow_offload.software.interface | list, priority='filter - 1') }}
     chain VYOS_OFFLOAD_software {
         type filter hook forward priority filter - 1; policy accept;
         ct state { established, related } meta l4proto { tcp, udp } flow add @VYOS_FLOWTABLE_software
     }
-{%     endif %}
 {% endif %}
 }
-- 
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