1 files changed, 162 insertions, 0 deletions
diff --git a/data/vyos-firewall-init.conf b/data/vyos-firewall-init.conf
new file mode 100644
index 000000000..cd815148e
--- /dev/null
+++ b/data/vyos-firewall-init.conf
@@ -0,0 +1,162 @@
+#!/usr/sbin/nft -f
+
+table ip vyos_static_nat {
+    chain PREROUTING {
+        type nat hook prerouting priority -100; policy accept;
+        counter jump VYOS_PRE_DNAT_HOOK
+    }
+
+    chain POSTROUTING {
+        type nat hook postrouting priority 100; policy accept;
+        counter jump VYOS_PRE_SNAT_HOOK
+    }
+
+    chain VYOS_PRE_DNAT_HOOK {
+        return
+    }
+
+    chain VYOS_PRE_SNAT_HOOK {
+        return
+    }
+}
+
+table ip nat {
+    chain PREROUTING {
+        type nat hook prerouting priority -100; policy accept;
+        counter jump VYOS_PRE_DNAT_HOOK
+    }
+
+    chain POSTROUTING {
+        type nat hook postrouting priority 100; policy accept;
+        counter jump VYOS_PRE_SNAT_HOOK
+    }
+
+    chain VYOS_PRE_DNAT_HOOK {
+        return
+    }
+
+    chain VYOS_PRE_SNAT_HOOK {
+        return
+    }
+}
+
+table ip6 nat {
+    chain PREROUTING {
+        type nat hook prerouting priority -100; policy accept;
+        counter jump VYOS_DNPT_HOOK
+    }
+
+    chain POSTROUTING {
+        type nat hook postrouting priority 100; policy accept;
+        counter jump VYOS_SNPT_HOOK
+    }
+
+    chain VYOS_DNPT_HOOK {
+        return
+    }
+
+    chain VYOS_SNPT_HOOK {
+        return
+    }
+}
+
+table inet mangle {
+    chain FORWARD {
+        type filter hook forward priority -150; policy accept;
+    }
+}
+
+table raw {
+    chain VYOS_TCP_MSS {
+        type filter hook forward priority -300; policy accept;
+    }
+
+    chain PREROUTING {
+        type filter hook prerouting priority -200; policy accept;
+        counter jump VYOS_CT_IGNORE
+        counter jump VYOS_CT_TIMEOUT
+        counter jump VYOS_CT_PREROUTING_HOOK
+        counter jump FW_CONNTRACK
+        notrack
+    }
+
+    chain OUTPUT {
+        type filter hook output priority -200; policy accept;
+        counter jump VYOS_CT_IGNORE
+        counter jump VYOS_CT_TIMEOUT
+        counter jump VYOS_CT_OUTPUT_HOOK
+        counter jump FW_CONNTRACK
+        notrack
+    }
+
+    ct helper rpc_tcp {
+        type "rpc" protocol tcp;
+    }
+
+    ct helper rpc_udp {
+        type "rpc" protocol udp;
+    }
+
+    ct helper tns_tcp {
+        type "tns" protocol tcp;
+    }
+
+    chain VYOS_CT_HELPER {
+        ct helper set "rpc_tcp" tcp dport {111} return
+        ct helper set "rpc_udp" udp dport {111} return
+        ct helper set "tns_tcp" tcp dport {1521,1525,1536} return
+        return
+    }
+
+    chain VYOS_CT_IGNORE {
+        return
+    }
+
+    chain VYOS_CT_TIMEOUT {
+        return
+    }
+
+    chain VYOS_CT_PREROUTING_HOOK {
+        return
+    }
+
+    chain VYOS_CT_OUTPUT_HOOK {
+        return
+    }
+
+    chain FW_CONNTRACK {
+        accept
+    }
+}
+
+table ip6 raw {
+    chain VYOS_TCP_MSS {
+        type filter hook forward priority -300; policy accept;
+    }
+
+    chain PREROUTING {
+        type filter hook prerouting priority -300; policy accept;
+        counter jump VYOS_CT_PREROUTING_HOOK
+        counter jump FW_CONNTRACK
+        notrack
+    }
+
+    chain OUTPUT {
+        type filter hook output priority -300; policy accept;
+        counter jump VYOS_CT_OUTPUT_HOOK
+        counter jump FW_CONNTRACK
+        notrack
+    }
+
+    chain VYOS_CT_PREROUTING_HOOK {
+        return
+    }
+
+    chain VYOS_CT_OUTPUT_HOOK {
+        return
+    }
+
+    chain FW_CONNTRACK {
+        accept
+    }
+}