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Diffstat (limited to 'data/templates/firewall/nftables-nat.tmpl')
| -rw-r--r-- | data/templates/firewall/nftables-nat.tmpl | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/data/templates/firewall/nftables-nat.tmpl b/data/templates/firewall/nftables-nat.tmpl deleted file mode 100644 index 922f3dcb4..000000000 --- a/data/templates/firewall/nftables-nat.tmpl +++ /dev/null @@ -1,179 +0,0 @@ -#!/usr/sbin/nft -f - -{% macro nat_rule(rule, config, chain) %} -{% set comment = '' %} -{% set base_log = '' %} -{% set src_addr = 'ip saddr ' ~ config.source.address.replace('!','!= ') if config.source.address is vyos_defined %} -{% set dst_addr = 'ip daddr ' ~ config.destination.address.replace('!','!= ') if config.destination.address is vyos_defined %} -{# negated port groups need special treatment, move != in front of { } group #} -{% if config.source.port is vyos_defined and config.source.port.startswith('!=') %} -{% set src_port = 'sport != { ' ~ config.source.port.replace('!=','') ~ ' }' %} -{% else %} -{% set src_port = 'sport { ' ~ config.source.port ~ ' }' if config.source.port is vyos_defined %} -{% endif %} -{# negated port groups need special treatment, move != in front of { } group #} -{% if config.destination.port is vyos_defined and config.destination.port.startswith('!=') %} -{% set dst_port = 'dport != { ' ~ config.destination.port.replace('!=','') ~ ' }' %} -{% else %} -{% set dst_port = 'dport { ' ~ config.destination.port ~ ' }' if config.destination.port is vyos_defined %} -{% endif %} -{% if chain is vyos_defined('PREROUTING') %} -{% set comment = 'DST-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 #} -{% set dst_addr = '' %} -{% else %} -{% set trns_addr = 'dnat to ' ~ config.translation.address %} -{% endif %} -{% endif %} -{% elif chain is vyos_defined('POSTROUTING') %} -{% set comment = 'SRC-NAT-' ~ rule %} -{% set base_log = '[NAT-SRC-' ~ rule %} -{% set interface = ' oifname "' ~ config.outbound_interface ~ '"' if config.outbound_interface is vyos_defined and config.outbound_interface is not vyos_defined('any') else '' %} -{% if config.translation.address is vyos_defined %} -{% if config.translation.address is vyos_defined('masquerade') %} -{% set trns_addr = config.translation.address %} -{% if config.translation.port is vyos_defined %} -{% set trns_addr = trns_addr ~ ' to ' %} -{% endif %} -{# support 1:1 network translation #} -{% elif config.translation.address | is_ip_network %} -{% set trns_addr = 'snat ip prefix to ip saddr map { ' ~ config.source.address ~ ' : ' ~ config.translation.address ~ ' }' %} -{# we can now clear out the src_addr part as it's already covered in aboves map #} -{% set src_addr = '' %} -{% else %} -{% set trns_addr = 'snat to ' ~ config.translation.address %} -{% endif %} -{% endif %} -{% endif %} -{% set trns_port = ':' ~ config.translation.port if config.translation.port is vyos_defined %} -{# protocol has a default value thus it is always present #} -{% if config.protocol is vyos_defined('tcp_udp') %} -{% set protocol = 'tcp' %} -{% set comment = comment ~ ' tcp_udp' %} -{% else %} -{% set protocol = config.protocol %} -{% endif %} -{% if config.log is vyos_defined %} -{% if config.exclude is vyos_defined %} -{% set log = base_log ~ '-EXCL]' %} -{% elif config.translation.address is vyos_defined('masquerade') %} -{% set log = base_log +'-MASQ]' %} -{% else %} -{% set log = base_log ~ ']' %} -{% 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 %} -{# T1083: NAT address and port translation options #} -{% 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 nat ' ~ chain ~ interface %} -{% if protocol is not vyos_defined('all') %} -{% set output = output ~ ' ip protocol ' ~ protocol %} -{% endif %} -{% if src_addr is vyos_defined %} -{% set output = output ~ ' ' ~ src_addr %} -{% endif %} -{% if src_port is vyos_defined %} -{% set output = output ~ ' ' ~ protocol ~ ' ' ~ src_port %} -{% endif %} -{% if dst_addr is vyos_defined %} -{% set output = output ~ ' ' ~ dst_addr %} -{% endif %} -{% if dst_port is vyos_defined %} -{% set output = output ~ ' ' ~ protocol ~ ' ' ~ dst_port %} -{% 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_port is vyos_defined %} -{# Do not add a whitespace here, translation port must be directly added after IP address #} -{# e.g. 192.0.2.10:3389 #} -{% set output = output ~ trns_port %} -{% 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 }} -{# Special handling if protocol is tcp_udp, we must repeat the entire rule with udp as protocol #} -{% if config.protocol is vyos_defined('tcp_udp') %} -{# Beware of trailing whitespace, without it the comment tcp_udp will be changed to udp_udp #} -{{ log_output | replace('tcp ', 'udp ') if log_output is vyos_defined }} -{{ output | replace('tcp ', 'udp ') }} -{% endif %} -{% endmacro %} - -# Start with clean NAT table -flush table ip nat -{% 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 %} - -# -# Destination NAT rules build up here -# -{% if destination.rule is vyos_defined %} -{% for rule, config in destination.rule.items() if config.disable is not vyos_defined %} -{{ nat_rule(rule, config, 'PREROUTING') }} -{% endfor %} -{% endif %} -# -# Source NAT rules build up here -# -{% if source.rule is vyos_defined %} -{% for rule, config in source.rule.items() if config.disable is not vyos_defined %} -{{ nat_rule(rule, config, 'POSTROUTING') }} -{% endfor %} -{% endif %} |