diff options
Diffstat (limited to 'data/templates/firewall/nftables-nat.tmpl')
| -rw-r--r-- | data/templates/firewall/nftables-nat.tmpl | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/data/templates/firewall/nftables-nat.tmpl b/data/templates/firewall/nftables-nat.tmpl deleted file mode 100644 index 40ed1b916..000000000 --- a/data/templates/firewall/nftables-nat.tmpl +++ /dev/null @@ -1,181 +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 is defined and config.source.address is defined and config.source.address is not none %} -{% set dst_addr = 'ip daddr ' + config.destination.address.replace('!','!= ') if config.destination is defined and config.destination.address is defined and config.destination.address is not none %} -{# negated port groups need special treatment, move != in front of { } group #} -{% if config.source is defined and config.source.port is defined and config.source.port is not none and config.source.port.startswith('!=') %} -{% set src_port = 'sport != { ' + config.source.port.replace('!=','') + ' }' %} -{% else %} -{% set src_port = 'sport { ' + config.source.port + ' }' if config.source is defined and config.source.port is defined and config.source.port is not none %} -{% endif %} -{# negated port groups need special treatment, move != in front of { } group #} -{% if config.destination is defined and config.destination.port is defined and config.destination.port is not none and config.destination.port.startswith('!=') %} -{% set dst_port = 'dport != { ' + config.destination.port.replace('!=','') + ' }' %} -{% else %} -{% set dst_port = 'dport { ' + config.destination.port + ' }' if config.destination is defined and config.destination.port is defined and config.destination.port is not none %} -{% endif %} -{% if chain == 'PREROUTING' %} -{% set comment = 'DST-NAT-' + rule %} -{% set base_log = '[NAT-DST-' + rule %} -{% set interface = ' iifname "' + config.inbound_interface + '"' if config.inbound_interface is defined and config.inbound_interface != 'any' else '' %} -{% if config.translation is defined and config.translation.address is defined and config.translation.address is not none %} -{# 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 == 'POSTROUTING' %} -{% set comment = 'SRC-NAT-' + rule %} -{% set base_log = '[NAT-SRC-' + rule %} -{% set interface = ' oifname "' + config.outbound_interface + '"' if config.outbound_interface is defined and config.outbound_interface != 'any' else '' %} -{% if config.translation is defined and config.translation.address is defined and config.translation.address is not none %} -{% if config.translation.address == 'masquerade' %} -{% set trns_addr = config.translation.address %} -{% if config.translation.port is defined and config.translation.port is not none %} -{% 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 is defined and config.translation.port is defined and config.translation.port is not none %} -{# protocol has a default value thus it is always present #} -{% if config.protocol == 'tcp_udp' %} -{% set protocol = 'tcp' %} -{% set comment = comment + ' tcp_udp' %} -{% else %} -{% set protocol = config.protocol %} -{% endif %} -{% if config.log is defined %} -{% if config.exclude is defined %} -{% set log = base_log + '-EXCL]' %} -{% elif config.translation is defined and config.translation.address is defined and config.translation.address == 'masquerade' %} -{% set log = base_log +'-MASQ]' %} -{% else %} -{% set log = base_log + ']' %} -{% endif %} -{% endif %} -{% if config.exclude is 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 is defined and config.translation.options is defined and config.translation.options is not none %} -{% if config.translation.options.address_mapping is defined and config.translation.options.address_mapping == "persistent" %} -{% set trns_opts_addr = 'persistent' %} -{% endif %} -{% if config.translation.options.port_mapping is defined %} -{% if config.translation.options.port_mapping == "random" %} -{% set trns_opts_port = 'random' %} -{% elif config.translation.options.port_mapping == "fully-random" %} -{% set trns_opts_port = 'fully-random' %} -{% endif %} -{% endif %} -{% endif %} -{% if trns_opts_addr and trns_opts_port %} -{% set trns_opts = trns_opts_addr + ',' + trns_opts_port %} -{% elif trns_opts_addr %} -{% set trns_opts = trns_opts_addr %} -{% elif trns_opts_port %} -{% set trns_opts = trns_opts_port %} -{% endif %} -{% set output = 'add rule ip nat ' + chain + interface %} -{% if protocol != 'all' %} -{% set output = output + ' ip protocol ' + protocol %} -{% endif %} -{% if src_addr %} -{% set output = output + ' ' + src_addr %} -{% endif %} -{% if src_port %} -{% set output = output + ' ' + protocol + ' ' + src_port %} -{% endif %} -{% if dst_addr %} -{% set output = output + ' ' + dst_addr %} -{% endif %} -{% if dst_port %} -{% 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 %} -{% set log_output = output + ' log prefix "' + log + '" comment "' + comment + '"' %} -{% endif %} -{% if trns_addr %} -{% set output = output + ' ' + trns_addr %} -{% endif %} -{% if trns_port %} -{# 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 %} -{% set output = output + ' ' + trns_opts %} -{% endif %} -{% if comment %} -{% set output = output + ' comment "' + comment + '"' %} -{% endif %} -{{ log_output if log_output }} -{{ output }} -{# Special handling if protocol is tcp_udp, we must repeat the entire rule with udp as protocol #} -{% if config.protocol == '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 }} -{{ output | replace('tcp ', 'udp ') }} -{% endif %} -{% endmacro %} - -# Start with clean NAT table -flush table ip nat -{% if helper_functions == '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 == '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 VYATTA_CT_HELPER -{{ base_command }} OUTPUT position {{ out_ct_ignore }} counter jump VYATTA_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 is defined and destination.rule is defined and destination.rule is not none %} -{% for rule, config in destination.rule.items() if config.disable is not defined %} -{{ nat_rule(rule, config, 'PREROUTING') }} -{% endfor %} -{% endif %} -# -# Source NAT rules build up here -# -{% if source is defined and source.rule is defined and source.rule is not none %} -{% for rule, config in source.rule.items() if config.disable is not defined %} -{{ nat_rule(rule, config, 'POSTROUTING') }} -{% endfor %} -{% endif %} |