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+<?xml version="1.0"?>
+<interfaceDefinition>
+ <node name="system">
+ <children>
+ <node name="conntrack" owner="${vyos_conf_scripts_dir}/system_conntrack.py">
+ <properties>
+ <help>Connection Tracking Engine Options</help>
+ <!-- Before NAT and conntrack-sync are configured -->
+ <priority>218</priority>
+ </properties>
+ <children>
+ <leafNode name="expect-table-size">
+ <properties>
+ <help>Size of connection tracking expect table</help>
+ <valueHelp>
+ <format>u32:1-50000000</format>
+ <description>Number of entries allowed in connection tracking expect table</description>
+ </valueHelp>
+ <constraint>
+ <validator name="numeric" argument="--range 1-50000000"/>
+ </constraint>
+ </properties>
+ <defaultValue>2048</defaultValue>
+ </leafNode>
+ <leafNode name="hash-size">
+ <properties>
+ <help>Hash size for connection tracking table</help>
+ <valueHelp>
+ <format>u32:1-50000000</format>
+ <description>Size of hash to use for connection tracking table</description>
+ </valueHelp>
+ <constraint>
+ <validator name="numeric" argument="--range 1-50000000"/>
+ </constraint>
+ </properties>
+ <defaultValue>32768</defaultValue>
+ </leafNode>
+ <node name="ignore">
+ <properties>
+ <help>Customized rules to ignore selective connection tracking</help>
+ </properties>
+ <children>
+ <tagNode name="rule">
+ <properties>
+ <help>Rule number</help>
+ <valueHelp>
+ <format>u32:1-999999</format>
+ <description>Number of conntrack ignore rule</description>
+ </valueHelp>
+ <constraint>
+ <validator name="numeric" argument="--range 1-999999"/>
+ </constraint>
+ <constraintErrorMessage>Ignore rule number must be between 1 and 999999</constraintErrorMessage>
+ </properties>
+ <children>
+ #include <include/generic-description.xml.i>
+ <node name="destination">
+ <properties>
+ <help>Destination parameters</help>
+ </properties>
+ <children>
+ #include <include/nat-address.xml.i>
+ #include <include/nat-port.xml.i>
+ </children>
+ </node>
+ <leafNode name="inbound-interface">
+ <properties>
+ <help>Interface to ignore connections tracking on</help>
+ <completionHelp>
+ <list>any</list>
+ <script>${vyos_completion_dir}/list_interfaces</script>
+ </completionHelp>
+ </properties>
+ </leafNode>
+ #include <include/ip-protocol.xml.i>
+ <leafNode name="protocol">
+ <properties>
+ <help>Protocol to match (protocol name, number, or "all")</help>
+ <completionHelp>
+ <script>${vyos_completion_dir}/list_protocols.sh</script>
+ <list>all tcp_udp</list>
+ </completionHelp>
+ <valueHelp>
+ <format>all</format>
+ <description>All IP protocols</description>
+ </valueHelp>
+ <valueHelp>
+ <format>tcp_udp</format>
+ <description>Both TCP and UDP</description>
+ </valueHelp>
+ <valueHelp>
+ <format>u32:0-255</format>
+ <description>IP protocol number</description>
+ </valueHelp>
+ <valueHelp>
+ <format>&lt;protocol&gt;</format>
+ <description>IP protocol name</description>
+ </valueHelp>
+ <valueHelp>
+ <format>!&lt;protocol&gt;</format>
+ <description>IP protocol name</description>
+ </valueHelp>
+ <constraint>
+ <validator name="ip-protocol"/>
+ </constraint>
+ </properties>
+ </leafNode>
+ <node name="source">
+ <properties>
+ <help>Source parameters</help>
+ </properties>
+ <children>
+ #include <include/nat-address.xml.i>
+ #include <include/nat-port.xml.i>
+ </children>
+ </node>
+ </children>
+ </tagNode>
+ </children>
+ </node>
+ <node name="log">
+ <properties>
+ <help>Log connection tracking events per protocol</help>
+ </properties>
+ <children>
+ <node name="icmp">
+ <properties>
+ <help>Log connection tracking events for ICMP</help>
+ </properties>
+ <children>
+ #include <include/conntrack/log-common.xml.i>
+ </children>
+ </node>
+ <node name="other">
+ <properties>
+ <help>Log connection tracking events for all protocols other than TCP, UDP and ICMP</help>
+ </properties>
+ <children>
+ #include <include/conntrack/log-common.xml.i>
+ </children>
+ </node>
+ <node name="tcp">
+ <properties>
+ <help>Log connection tracking events for TCP</help>
+ </properties>
+ <children>
+ #include <include/conntrack/log-common.xml.i>
+ </children>
+ </node>
+ <node name="udp">
+ <properties>
+ <help>Log connection tracking events for UDP</help>
+ </properties>
+ <children>
+ #include <include/conntrack/log-common.xml.i>
+ </children>
+ </node>
+ </children>
+ </node>
+ <node name="modules">
+ <properties>
+ <help>Connection tracking modules</help>
+ </properties>
+ <children>
+ <leafNode name="ftp">
+ <properties>
+ <help>FTP connection tracking</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="h323">
+ <properties>
+ <help>H.323 connection tracking</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="nfs">
+ <properties>
+ <help>NFS connection tracking</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="pptp">
+ <properties>
+ <help>PPTP connection tracking</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="sip">
+ <properties>
+ <help>SIP connection tracking</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="sqlnet">
+ <properties>
+ <help>SQLnet connection tracking</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="tftp">
+ <properties>
+ <help>TFTP connection tracking</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ </children>
+ </node>
+ <leafNode name="table-size">
+ <properties>
+ <help>Size of connection tracking table</help>
+ <valueHelp>
+ <format>u32:1-50000000</format>
+ <description>Number of entries allowed in connection tracking table</description>
+ </valueHelp>
+ <constraint>
+ <validator name="numeric" argument="--range 1-50000000"/>
+ </constraint>
+ </properties>
+ <defaultValue>262144</defaultValue>
+ </leafNode>
+ <node name="tcp">
+ <properties>
+ <help>TCP options</help>
+ </properties>
+ <children>
+ <leafNode name="half-open-connections">
+ <properties>
+ <help>Maximum number of TCP half-open connections</help>
+ <valueHelp>
+ <format>u32:1-2147483647</format>
+ <description>Generic connection timeout in seconds</description>
+ </valueHelp>
+ <constraint>
+ <validator name="numeric" argument="--range 1-2147483647"/>
+ </constraint>
+ </properties>
+ <defaultValue>512</defaultValue>
+ </leafNode>
+ <leafNode name="loose">
+ <properties>
+ <help>Policy to track previously established connections</help>
+ <completionHelp>
+ <list>enable disable</list>
+ </completionHelp>
+ <valueHelp>
+ <format>enable</format>
+ <description>Allow tracking of previously established connections</description>
+ </valueHelp>
+ <valueHelp>
+ <format>disable</format>
+ <description>Do not allow tracking of previously established connections</description>
+ </valueHelp>
+ <constraint>
+ <regex>(enable|disable)</regex>
+ </constraint>
+ </properties>
+ <defaultValue>enable</defaultValue>
+ </leafNode>
+ <leafNode name="max-retrans">
+ <properties>
+ <help>Maximum number of packets that can be retransmitted without received an ACK</help>
+ <valueHelp>
+ <format>u32:1-255</format>
+ <description>Number of packets to be retransmitted</description>
+ </valueHelp>
+ <constraint>
+ <validator name="numeric" argument="--range 1-255"/>
+ </constraint>
+ </properties>
+ <defaultValue>3</defaultValue>
+ </leafNode>
+ </children>
+ </node>
+ <node name="timeout">
+ <properties>
+ <help>Connection timeout options</help>
+ </properties>
+ <children>
+ <node name="custom">
+ <properties>
+ <help>Define custom timeouts per connection</help>
+ </properties>
+ <children>
+ <tagNode name="rule">
+ <properties>
+ <help>Rule number</help>
+ <valueHelp>
+ <format>u32:1-999999</format>
+ <description>Number of conntrack rule</description>
+ </valueHelp>
+ <constraint>
+ <validator name="numeric" argument="--range 1-999999"/>
+ </constraint>
+ <constraintErrorMessage>Ignore rule number must be between 1 and 999999</constraintErrorMessage>
+ </properties>
+ <children>
+ #include <include/generic-description.xml.i>
+ <node name="destination">
+ <properties>
+ <help>Destination parameters</help>
+ </properties>
+ <children>
+ #include <include/nat-address.xml.i>
+ #include <include/nat-port.xml.i>
+ </children>
+ </node>
+ <leafNode name="inbound-interface">
+ <properties>
+ <help>Interface to ignore connections tracking on</help>
+ <completionHelp>
+ <list>any</list>
+ <script>${vyos_completion_dir}/list_interfaces</script>
+ </completionHelp>
+ </properties>
+ </leafNode>
+ #include <include/ip-protocol.xml.i>
+ <node name="protocol">
+ <properties>
+ <help>Customize protocol specific timers, one protocol configuration per rule</help>
+ </properties>
+ <children>
+ #include <include/conntrack/timeout-common-protocols.xml.i>
+ </children>
+ </node>
+ <node name="source">
+ <properties>
+ <help>Source parameters</help>
+ </properties>
+ <children>
+ #include <include/nat-address.xml.i>
+ #include <include/nat-port.xml.i>
+ </children>
+ </node>
+ </children>
+ </tagNode>
+ </children>
+ </node>
+ #include <include/conntrack/timeout-common-protocols.xml.i>
+ </children>
+ </node>
+ </children>
+ </node>
+ </children>
+ </node>
+</interfaceDefinition>