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| author | Igor Melnyk <igor_melnyk@ukr.net> | 2021-06-26 10:48:54 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-06-26 09:48:54 +0200 |
| commit | 166d44b32813c9dd64c3857beaf5eac8382b2d6d (patch) | |
| tree | 3e4b7bd63ada6ff76c40d12e576d8b163e1017d0 | |
| parent | 3ffe114e8e8916d142b82657bd982122e57d17ed (diff) | |
| download | vyos-1x-166d44b32813c9dd64c3857beaf5eac8382b2d6d.tar.gz vyos-1x-166d44b32813c9dd64c3857beaf5eac8382b2d6d.zip | |
nat: T1083: add translation options for persistent/random mapping of address and port
Tested using:
set destination rule 100 inbound-interface 'eth0'
set destination rule 100 translation address '19.13.23.42'
set destination rule 100 translation options address-mapping 'random'
set destination rule 100 translation options port-mapping 'none'
set source rule 1000 outbound-interface 'eth0'
set source rule 1000 translation address '122.233.231.12'
set source rule 1000 translation options address-mapping 'persistent'
set source rule 1000 translation options port-mapping 'fully-random'
| -rw-r--r-- | data/templates/firewall/nftables-nat.tmpl | 23 | ||||
| -rw-r--r-- | interface-definitions/include/nat-translation-options.xml.i | 51 | ||||
| -rw-r--r-- | interface-definitions/nat.xml.in | 2 |
3 files changed, 76 insertions, 0 deletions
diff --git a/data/templates/firewall/nftables-nat.tmpl b/data/templates/firewall/nftables-nat.tmpl index b80fc1968..e2776e9c2 100644 --- a/data/templates/firewall/nftables-nat.tmpl +++ b/data/templates/firewall/nftables-nat.tmpl @@ -73,6 +73,26 @@ {% set trns_addr = 'return' %} {% set trns_port = '' %} {% endif %} +{# T1083: NAT address and port translation options #} +{% if 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 %} @@ -104,6 +124,9 @@ {# 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 %} diff --git a/interface-definitions/include/nat-translation-options.xml.i b/interface-definitions/include/nat-translation-options.xml.i new file mode 100644 index 000000000..defc8c0d5 --- /dev/null +++ b/interface-definitions/include/nat-translation-options.xml.i @@ -0,0 +1,51 @@ +<!-- include start from nat-translation-options.xml.i --> +<node name="options"> + <properties> + <help>Translation options</help> + </properties> + <children> + <leafNode name="address-mapping"> + <properties> + <help>Address mapping options</help> + <completionHelp> + <list>persistent random</list> + </completionHelp> + <valueHelp> + <format>persistent</format> + <description>Gives a client the same source or destination-address for each connection</description> + </valueHelp> + <valueHelp> + <format>random</format> + <description>Random source or destination address allocation for each connection (defaut)</description> + </valueHelp> + <constraint> + <regex>^(persistent|random)$</regex> + </constraint> + </properties> + </leafNode> + <leafNode name="port-mapping"> + <properties> + <help>Port mapping options</help> + <completionHelp> + <list>random fully-random none</list> + </completionHelp> + <valueHelp> + <format>random</format> + <description>Randomize source port mapping</description> + </valueHelp> + <valueHelp> + <format>fully-random</format> + <description>Full port randomization</description> + </valueHelp> + <valueHelp> + <format>none</format> + <description>Do not apply port randomization (default)</description> + </valueHelp> + <constraint> + <regex>^(random|fully-random|none)$</regex> + </constraint> + </properties> + </leafNode> + </children> +</node> +<!-- include end --> diff --git a/interface-definitions/nat.xml.in b/interface-definitions/nat.xml.in index 9862f49b2..3cf3ba6aa 100644 --- a/interface-definitions/nat.xml.in +++ b/interface-definitions/nat.xml.in @@ -50,6 +50,7 @@ </properties> </leafNode> #include <include/nat-translation-port.xml.i> + #include <include/nat-translation-options.xml.i> </children> </node> </children> @@ -101,6 +102,7 @@ </properties> </leafNode> #include <include/nat-translation-port.xml.i> + #include <include/nat-translation-options.xml.i> </children> </node> </children> |