XSL Modify Based on Command Line Param

I've got the following XML excerpt. The full XML is the OVF definition.

<?xml version="1.0" encoding="UTF-8"?>
<Envelope xmlns="http://schemas.dmtf.org/ovf/envelope/1" xmlns:cim="http://schemas.dmtf.org/wbem/wscim/1/common" xmlns:ovf="http://schemas.dmtf.org/ovf/envelope/1" xmlns:rasd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_ResourceAllocationSettingData" xmlns:vmw="http://www.vmware.com/schema/ovf" xmlns:vssd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_VirtualSystemSettingData" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" x xml:lang="en-US">
      <Item>
        <rasd:Caption ovf:msgid="network.eth0.caption"/>
        <rasd:Connection>eth0</rasd:Connection>
        <rasd:Description ovf:msgid="network.eth0.description"/>
        <rasd:ElementName>eth0</rasd:ElementName>
        <rasd:InstanceID>13</rasd:InstanceID>
        <rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
        <rasd:ResourceType>10</rasd:ResourceType>
      </Item>
      <Item>
        <rasd:Caption ovf:msgid="network.eth1.caption"/>
        <rasd:Connection>eth1</rasd:Connection>
        <rasd:Description ovf:msgid="network.eth1.description"/>
        <rasd:ElementName>eth1</rasd:ElementName>
        <rasd:InstanceID>14</rasd:InstanceID>
        <rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
        <rasd:ResourceType>10</rasd:ResourceType>
      </Item>
      <Item>
        <rasd:Caption ovf:msgid="network.eth2.caption"/>
        <rasd:Connection>eth2</rasd:Connection>
        <rasd:Description ovf:msgid="network.eth2.description"/>
        <rasd:ElementName>eth2</rasd:ElementName>
        <rasd:InstanceID>15</rasd:InstanceID>
        <rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
        <rasd:ResourceType>10</rasd:ResourceType>
      </Item>
      <Item>
        <rasd:Caption ovf:msgid="network.eth3.caption"/>
        <rasd:Connection>eth3</rasd:Connection>
        <rasd:Description ovf:msgid="network.eth3.description"/>
        <rasd:ElementName>eth3</rasd:ElementName>
        <rasd:InstanceID>16</rasd:InstanceID>
        <rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
        <rasd:ResourceType>10</rasd:ResourceType>
      </Item>     
</Envelope>

I am trying to insert the line <rasd:AutomaticAllocation>false</rasd:AutomaticAllocation>before the <rasd:Connection>eth*</rasd:Connection> line but not on all of them. I've gotten the following XSL so far and it works, the issue though is that I have to hard code each interface I want to disable.

<xsl:template match="rasd:Connection[text()='eth0']">
    <xsl:if test="$disableEths='true'">
        <xsl:element name="rasd:AutomaticAllocation">false</xsl:element>
        <xsl:copy-of select="."/>
    </xsl:if>
</xsl:template> 
<xsl:template match="rasd:Connection[text()='eth1']">
    <xsl:if test="$disableEths='true'">
        <xsl:element name="rasd:AutomaticAllocation">false</xsl:element>
        <xsl:copy-of select="."/>
    </xsl:if>
</xsl:template> 
<xsl:template match="rasd:Connection[text()='eth2']">
    <xsl:if test="$disableEths='true'">
        <xsl:element name="rasd:AutomaticAllocation">false</xsl:element>
        <xsl:copy-of select="."/>
    </xsl:if>
</xsl:template>

Is there a way to have the user pass in a param containing a delimited list of values they want to disable and if no param is input don't disable any of them? Using xsltproc as the processor if it matters.

As suggested in the comments, should the user produce an xml file, named for example DisableItems.xml like below (which by the way can be produced from text delimited files, .txt, .csv, .tab, etc., using general purpose languages: C#, Java, Perl, PHP, Python, R, VB...):

<?xml version="1.0" encoding="UTF-8"?>
<root>
  <disableitem>eth1</disableitem>
  <disableitem>eth2</disableitem>
  <disableitem>eth3</disableitem>  
</root>

Then, XSLT can search accordingly using its document() function. Be sure other xml file is in same directory as original source xml:

<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"
               xmlns:rasd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_ResourceAllocationSettingData">
<xsl:output version="1.0" encoding="UTF-8" indent="yes" />
<xsl:strip-space elements="*"/>

  <!-- Identity Transform -->
  <xsl:template match="@*|node()">
    <xsl:copy>
      <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
  </xsl:template>  

  <xsl:template match="rasd:Connection[text()=document('DisableItems.xml')/root/disableitem]">
    <xsl:element name="rasd:AutomaticAllocation">false</xsl:element>
    <xsl:copy-of select="."/>
  </xsl:template>

</xsl:transform>

Output (notice eth0 not specified in lookup xml does not have the false element)

<?xml version='1.0' encoding='UTF-8'?>
<Envelope xmlns="http://schemas.dmtf.org/ovf/envelope/1" xmlns:cim="http://schemas.dmtf.org/wbem/wscim/1/common" xmlns:ovf="http://schemas.dmtf.org/ovf/envelope/1" xmlns:rasd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_ResourceAllocationSettingData" xmlns:vmw="http://www.vmware.com/schema/ovf" xmlns:vssd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_VirtualSystemSettingData" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en-US">
  <Item>
    <rasd:Caption ovf:msgid="network.eth0.caption"/>
    <rasd:Connection>eth0</rasd:Connection>
    <rasd:Description ovf:msgid="network.eth0.description"/>
    <rasd:ElementName>eth0</rasd:ElementName>
    <rasd:InstanceID>13</rasd:InstanceID>
    <rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
    <rasd:ResourceType>10</rasd:ResourceType>
  </Item>
  <Item>
    <rasd:Caption ovf:msgid="network.eth1.caption"/>
    <rasd:AutomaticAllocation>false</rasd:AutomaticAllocation>
    <rasd:Connection>eth1</rasd:Connection>
    <rasd:Description ovf:msgid="network.eth1.description"/>
    <rasd:ElementName>eth1</rasd:ElementName>
    <rasd:InstanceID>14</rasd:InstanceID>
    <rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
    <rasd:ResourceType>10</rasd:ResourceType>
  </Item>
  <Item>
    <rasd:Caption ovf:msgid="network.eth2.caption"/>
    <rasd:AutomaticAllocation>false</rasd:AutomaticAllocation>
    <rasd:Connection>eth2</rasd:Connection>
    <rasd:Description ovf:msgid="network.eth2.description"/>
    <rasd:ElementName>eth2</rasd:ElementName>
    <rasd:InstanceID>15</rasd:InstanceID>
    <rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
    <rasd:ResourceType>10</rasd:ResourceType>
  </Item>
  <Item>
    <rasd:Caption ovf:msgid="network.eth3.caption"/>
    <rasd:AutomaticAllocation>false</rasd:AutomaticAllocation>
    <rasd:Connection>eth3</rasd:Connection>
    <rasd:Description ovf:msgid="network.eth3.description"/>
    <rasd:ElementName>eth3</rasd:ElementName>
    <rasd:InstanceID>16</rasd:InstanceID>
    <rasd:ResourceSubType>VmxNet3</rasd:ResourceSubType>
    <rasd:ResourceType>10</rasd:ResourceType>
  </Item>
</Envelope>