diff options
Diffstat (limited to 'data')
| -rw-r--r-- | data/templates/firewall/nftables-static-nat.j2 | 122 | ||||
| -rw-r--r-- | data/vyos-firewall-init.conf | 20 |
2 files changed, 19 insertions, 123 deletions
diff --git a/data/templates/firewall/nftables-static-nat.j2 b/data/templates/firewall/nftables-static-nat.j2 index d3c43858f..790c33ce9 100644 --- a/data/templates/firewall/nftables-static-nat.j2 +++ b/data/templates/firewall/nftables-static-nat.j2 @@ -1,115 +1,31 @@ #!/usr/sbin/nft -f -{% macro nat_rule(rule, config, chain) %} -{% set comment = '' %} -{% set base_log = '' %} - -{% if chain is vyos_defined('PREROUTING') %} -{% set comment = 'STATIC-NAT-' ~ rule %} -{% set base_log = '[NAT-DST-' ~ rule %} -{% set interface = ' iifname "' ~ config.inbound_interface ~ '"' if config.inbound_interface is vyos_defined and config.inbound_interface is not vyos_defined('any') else '' %} -{% if config.translation.address is vyos_defined %} -{# support 1:1 network translation #} -{% if config.translation.address | is_ip_network %} -{% set trns_addr = 'dnat ip prefix to ip daddr map { ' ~ config.destination.address ~ ' : ' ~ config.translation.address ~ ' }' %} -{# we can now clear out the dst_addr part as it's already covered in aboves map #} -{% else %} -{% set dst_addr = 'ip daddr ' ~ config.destination.address if config.destination.address is vyos_defined %} -{% set trns_addr = 'dnat to ' ~ config.translation.address %} -{% endif %} -{% endif %} -{% elif chain is vyos_defined('POSTROUTING') %} -{% set comment = 'STATIC-NAT-' ~ rule %} -{% set base_log = '[NAT-SRC-' ~ rule %} -{% set interface = ' oifname "' ~ config.inbound_interface ~ '"' if config.inbound_interface is vyos_defined and config.inbound_interface is not vyos_defined('any') else '' %} -{% if config.translation.address is vyos_defined %} -{# support 1:1 network translation #} -{% if config.translation.address | is_ip_network %} -{% set trns_addr = 'snat ip prefix to ip saddr map { ' ~ config.translation.address ~ ' : ' ~ config.destination.address ~ ' }' %} -{# we can now clear out the src_addr part as it's already covered in aboves map #} -{% else %} -{% set src_addr = 'ip saddr ' ~ config.translation.address if config.translation.address is vyos_defined %} -{% set trns_addr = 'snat to ' ~ config.destination.address %} -{% endif %} -{% endif %} -{% endif %} - -{% if config.exclude is vyos_defined %} -{# rule has been marked as 'exclude' thus we simply return here #} -{% set trns_addr = 'return' %} -{% set trns_port = '' %} -{% endif %} - -{% if config.translation.options is vyos_defined %} -{% if config.translation.options.address_mapping is vyos_defined('persistent') %} -{% set trns_opts_addr = 'persistent' %} -{% endif %} -{% if config.translation.options.port_mapping is vyos_defined('random') %} -{% set trns_opts_port = 'random' %} -{% elif config.translation.options.port_mapping is vyos_defined('fully-random') %} -{% set trns_opts_port = 'fully-random' %} -{% endif %} -{% endif %} - -{% if trns_opts_addr is vyos_defined and trns_opts_port is vyos_defined %} -{% set trns_opts = trns_opts_addr ~ ',' ~ trns_opts_port %} -{% elif trns_opts_addr is vyos_defined %} -{% set trns_opts = trns_opts_addr %} -{% elif trns_opts_port is vyos_defined %} -{% set trns_opts = trns_opts_port %} -{% endif %} - -{% set output = 'add rule ip vyos_static_nat ' ~ chain ~ interface %} - -{% if dst_addr is vyos_defined %} -{% set output = output ~ ' ' ~ dst_addr %} +{% if first_install is not vyos_defined %} +delete table ip vyos_static_nat {% endif %} -{% if src_addr is vyos_defined %} -{% set output = output ~ ' ' ~ src_addr %} -{% endif %} - -{# Count packets #} -{% set output = output ~ ' counter' %} -{# Special handling of log option, we must repeat the entire rule before the #} -{# NAT translation options are added, this is essential #} -{% if log is vyos_defined %} -{% set log_output = output ~ ' log prefix "' ~ log ~ '" comment "' ~ comment ~ '"' %} -{% endif %} -{% if trns_addr is vyos_defined %} -{% set output = output ~ ' ' ~ trns_addr %} -{% endif %} - -{% if trns_opts is vyos_defined %} -{% set output = output ~ ' ' ~ trns_opts %} -{% endif %} -{% if comment is vyos_defined %} -{% set output = output ~ ' comment "' ~ comment ~ '"' %} -{% endif %} -{{ log_output if log_output is vyos_defined }} -{{ output }} -{% endmacro %} - -# Start with clean STATIC NAT chains -flush chain ip vyos_static_nat PREROUTING -flush chain ip vyos_static_nat POSTROUTING +table ip vyos_static_nat { + # + # Destination NAT rules build up here + # -{# NAT if enabled - add targets to nftables #} - -# -# Destination NAT rules build up here -# -add rule ip vyos_static_nat PREROUTING counter jump VYOS_PRE_DNAT_HOOK + chain PREROUTING { + type nat hook prerouting priority -100; policy accept; {% if static.rule is vyos_defined %} {% for rule, config in static.rule.items() if config.disable is not vyos_defined %} -{{ nat_rule(rule, config, 'PREROUTING') }} + {{ config | nat_static_rule(rule, 'destination') }} {% endfor %} {% endif %} -# -# Source NAT rules build up here -# -add rule ip vyos_static_nat POSTROUTING counter jump VYOS_PRE_SNAT_HOOK + } + + # + # Source NAT rules build up here + # + chain POSTROUTING { + type nat hook postrouting priority 100; policy accept; {% if static.rule is vyos_defined %} {% for rule, config in static.rule.items() if config.disable is not vyos_defined %} -{{ nat_rule(rule, config, 'POSTROUTING') }} + {{ config | nat_static_rule(rule, 'source') }} {% endfor %} {% endif %} + } +} diff --git a/data/vyos-firewall-init.conf b/data/vyos-firewall-init.conf index 3a0e1ee48..11a5bc7bf 100644 --- a/data/vyos-firewall-init.conf +++ b/data/vyos-firewall-init.conf @@ -1,25 +1,5 @@ #!/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 { |