#!/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
    }
}

# Required by wanloadbalance
table ip nat {
    chain VYOS_PRE_SNAT_HOOK {
        type nat hook postrouting priority 99; policy accept;
        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
    }
}