<?xml version="1.0" encoding="ISO-8859-1"?> <!-- Converts from simple xml iptables format to iptables-save format Copyright 2006 UfoMechanic Author: azez@ufomechanic.net This code is distributed and licensed under the terms of GNU GPL v2 This sample usage outputs roughly want goes in iptables-save | iptables-xml -c | xsltproc iptables.xslt - --> <xsl:transform version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output method = "text" /> <xsl:strip-space elements="*" /> <!-- output conditions of a rule but not an action --> <xsl:template match="iptables-rules/table/chain/rule/conditions/*"> <!-- <match> is the pseudo module when a match module doesn't need to be loaded and when -m does not need to be inserted --> <xsl:if test="name() != 'match'"> <xsl:text> -m </xsl:text><xsl:value-of select="name()"/> </xsl:if> <xsl:apply-templates select="node()"/> </xsl:template> <!-- delete the actions or conditions containers, and process child nodes --> <xsl:template match="iptables-rules/table/chain/rule/actions|table/chain/rule/conditions"> <xsl:apply-templates select="*"/> </xsl:template> <xsl:template match="iptables-rules/table/chain/rule/actions/goto"> <xsl:text> -g </xsl:text> <xsl:apply-templates select="*"/> <xsl:text>&#xA;</xsl:text> </xsl:template> <xsl:template match="iptables-rules/table/chain/rule/actions/call"> <xsl:text> -j </xsl:text> <xsl:apply-templates select="*"/> <xsl:text>&#xA;</xsl:text> </xsl:template> <!-- all other actions are module actions --> <xsl:template match="iptables-rules/table/chain/rule/actions/*"> <xsl:text> -j </xsl:text><xsl:value-of select="name()"/> <xsl:apply-templates select="*"/> <xsl:text>&#xA;</xsl:text> </xsl:template> <!-- all child action nodes --> <xsl:template match="iptables-rules/table/chain/rule/actions//*|iptables-rules/table/chain/rule/conditions//*" priority="0"> <xsl:if test="@invert=1"><xsl:text> !</xsl:text></xsl:if> <xsl:text> -</xsl:text> <!-- if length of name is 1 character, then only do 1 - not 2 --> <xsl:if test="string-length(name())&gt;1"> <xsl:text>-</xsl:text> </xsl:if> <xsl:value-of select="name()"/> <xsl:text> </xsl:text> <xsl:apply-templates select="node()"/> </xsl:template> <xsl:template match="iptables-rules/table/chain/rule/actions/call/*|iptables-rules/table/chain/rule/actions/goto/*"> <xsl:value-of select="name()"/> <!-- I bet there are no child nodes, should we risk it? --> <xsl:apply-templates select="node()"/> </xsl:template> <!-- output the head of the rule, and any conditions --> <xsl:template name="rule-head"> <xsl:if test="string-length(@packet-count)+string-length(@byte-count)"> <xsl:call-template name="counters"><xsl:with-param name="node" select="."/></xsl:call-template> <xsl:text> </xsl:text> </xsl:if> <xsl:text>-A </xsl:text><!-- a rule must be under a chain --> <xsl:value-of select="../@name" /> <xsl:apply-templates select="conditions"/> </xsl:template> <!-- Output a single rule, perhaps as multiple rules if we have more than one action --> <xsl:template match="iptables-rules/table/chain/rule"> <xsl:choose> <xsl:when test="count(actions/*)&gt;0"> <xsl:for-each select="actions/*"> <!-- and a for-each to re-select the rule as the current node, to write the rule-head --> <xsl:for-each select="../.."> <xsl:call-template name="rule-head"/> </xsl:for-each> <!-- now write the this action --> <xsl:apply-templates select="."/> </xsl:for-each> </xsl:when> <xsl:otherwise> <!-- no need to loop if there are no actions, just output conditions --> <xsl:call-template name="rule-head"/> <xsl:text>&#xA;</xsl:text> </xsl:otherwise> </xsl:choose> </xsl:template> <xsl:template match="iptables-rules/table"> <xsl:text># Generated by iptables.xslt&#xA;</xsl:text> <xsl:text>*</xsl:text><xsl:value-of select="@name"/><xsl:text>&#xA;</xsl:text> <!-- Loop through each chain and output the chain header --> <xsl:for-each select="chain"> <xsl:text>:</xsl:text> <xsl:value-of select="@name"/> <xsl:text> </xsl:text> <xsl:choose> <xsl:when test="not(string-length(@policy))"><xsl:text>-</xsl:text></xsl:when> <xsl:otherwise><xsl:value-of select="@policy"/></xsl:otherwise> </xsl:choose> <xsl:text> </xsl:text> <xsl:call-template name="counters"><xsl:with-param name="node" select="."/></xsl:call-template> <xsl:text>&#xA;</xsl:text> </xsl:for-each> <!-- Loop through each chain and output the rules --> <xsl:apply-templates select="node()"/> <xsl:text>COMMIT&#xA;# Completed&#xA;</xsl:text> </xsl:template> <xsl:template name="counters"> <xsl:param name="node"/> <xsl:text>[</xsl:text> <xsl:if test="string-length($node/@packet-count)"><xsl:value-of select="$node/@packet-count"/></xsl:if> <xsl:if test="string-length($node/@packet-count)=0">0</xsl:if> <xsl:text>:</xsl:text> <xsl:if test="string-length($node/@byte-count)"><xsl:value-of select="$node/@byte-count"/></xsl:if> <xsl:if test="string-length($node/@byte-count)=0">0</xsl:if> <xsl:text>]</xsl:text> </xsl:template> <!-- the bit that automatically recurses for us, NOTE: we use * not node(), we don't want to copy every white space text --> <xsl:template match="@*|node()"> <xsl:copy> <!-- with libxslt xsltproc we can't do @*|node() or the nodes may get processed before the attributes --> <xsl:apply-templates select="@*"/> <xsl:apply-templates select="node()"/> </xsl:copy> </xsl:template> </xsl:transform>