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|
#!/usr/sbin/nft -f
{% if cleanup_commands is defined %}
{% for command in cleanup_commands %}
{{ command }}
{% endfor %}
{% endif %}
include "/run/nftables_defines.conf"
table ip filter {
{% if first_install is defined %}
chain VYOS_FW_FORWARD {
type filter hook forward priority 0; policy accept;
jump VYOS_POST_FW
}
chain VYOS_FW_LOCAL {
type filter hook input priority 0; policy accept;
jump VYOS_POST_FW
}
chain VYOS_FW_OUTPUT {
type filter hook output priority 0; policy accept;
jump VYOS_POST_FW
}
chain VYOS_POST_FW {
return
}
chain VYOS_FRAG_MARK {
type filter hook prerouting priority -450; policy accept;
ip frag-off & 0x3fff != 0 meta mark set 0xffff1 return
}
{% endif %}
{% if name is defined %}
{% for name_text, conf in name.items() %}
{% set default_log = 'log' if 'enable_default_log' in conf else '' %}
chain {{ name_text }} {
{% if conf.rule is defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not defined %}
{{ rule_conf | nft_rule(name_text, rule_id) }}
{% endfor %}
{% endif %}
{% if conf.default_action is defined %}
counter {{ default_log }} {{ conf.default_action | nft_action }} comment "{{ name_text }} default-action {{ conf.default_action }}"
{% else %}
return
{% endif %}
}
{% endfor %}
{% endif %}
{% if state_policy is defined %}
chain VYOS_STATE_POLICY {
{% if state_policy.established is defined %}
{{ state_policy.established | nft_state_policy('established') }}
{% endif %}
{% if state_policy.invalid is defined %}
{{ state_policy.invalid | nft_state_policy('invalid') }}
{% endif %}
{% if state_policy.related is defined %}
{{ state_policy.related | nft_state_policy('related') }}
{% endif %}
return
}
{% endif %}
}
table ip6 filter {
{% if first_install is defined %}
chain VYOS_FW6_FORWARD {
type filter hook forward priority 0; policy accept;
jump VYOS_POST_FW6
}
chain VYOS_FW6_LOCAL {
type filter hook input priority 0; policy accept;
jump VYOS_POST_FW6
}
chain VYOS_FW6_OUTPUT {
type filter hook output priority 0; policy accept;
jump VYOS_POST_FW6
}
chain VYOS_POST_FW6 {
return
}
chain VYOS_FRAG6_MARK {
type filter hook prerouting priority -450; policy accept;
exthdr frag exists meta mark set 0xffff1 return
}
{% endif %}
{% if ipv6_name is defined %}
{% for name_text, conf in ipv6_name.items() %}
{% set default_log = 'log' if 'enable_default_log' in conf else '' %}
chain {{ name_text }} {
{% if conf.rule is defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not defined %}
{{ rule_conf | nft_rule(name_text, rule_id, 'ip6') }}
{% endfor %}
{% endif %}
{% if conf.default_action is defined %}
counter {{ default_log }} {{ conf.default_action | nft_action }} comment "{{ name_text }} default-action {{ conf.default_action }}"
{% else %}
return
{% endif %}
}
{% endfor %}
{% endif %}
{% if state_policy is defined %}
chain VYOS_STATE_POLICY6 {
{% if state_policy.established is defined %}
{{ state_policy.established | nft_state_policy('established', ipv6=True) }}
{% endif %}
{% if state_policy.invalid is defined %}
{{ state_policy.invalid | nft_state_policy('invalid', ipv6=True) }}
{% endif %}
{% if state_policy.related is defined %}
{{ state_policy.related | nft_state_policy('related', ipv6=True) }}
{% endif %}
return
}
{% endif %}
}
{% if first_install is defined %}
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
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
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
}
}
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
notrack
}
chain OUTPUT {
type filter hook output priority -300; policy accept;
counter jump VYOS_CT_OUTPUT_HOOK
notrack
}
chain VYOS_CT_PREROUTING_HOOK {
return
}
chain VYOS_CT_OUTPUT_HOOK {
return
}
}
{% endif %}
|
