<?xml version="1.0"?>
<!-- A Relax NG schema for the libvirt storage pool XML format -->
<grammar xmlns="http://relaxng.org/ns/structure/1.0"
    datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
  <include href='basictypes.rng'/>
  <include href='storagecommon.rng'/>
  <start>
    <ref name='pool'/>
  </start>


  <define name='pool'>
    <element name='pool'>
      <choice>
        <ref name='pooldir'/>
        <ref name='poolfs'/>
        <ref name='poolnetfs'/>
        <ref name='poollogical'/>
        <ref name='pooldisk'/>
        <ref name='pooliscsi'/>
        <ref name='pooliscsidirect'/>
        <ref name='poolscsi'/>
        <ref name='poolmpath'/>
        <ref name='poolrbd'/>
        <ref name='poolsheepdog'/>
        <ref name='poolgluster'/>
        <ref name='poolzfs'/>
        <ref name='poolvstorage'/>
      </choice>
    </element>
  </define>

  <define name='pooldir'>
    <attribute name='type'>
      <value>dir</value>
    </attribute>
    <interleave>
      <ref name='commonmetadata'/>
      <ref name='sizing'/>
      <ref name='sourcedir'/>
      <ref name='target'/>
    </interleave>
  </define>

  <define name='poolfs'>
    <attribute name='type'>
      <value>fs</value>
    </attribute>
    <interleave>
      <ref name='commonmetadata'/>
      <ref name='sizing'/>
      <ref name='sourcefs'/>
      <ref name='target'/>
    </interleave>
    <optional>
      <ref name='fs_mount_opts'/>
    </optional>
  </define>

  <define name='poolnetfs'>
    <attribute name='type'>
      <value>netfs</value>
    </attribute>
    <interleave>
      <ref name='commonmetadata'/>
      <ref name='sizing'/>
      <ref name='sourcenetfs'/>
      <ref name='target'/>
    </interleave>
    <optional>
      <ref name='fs_mount_opts'/>
    </optional>
  </define>

  <define name='poollogical'>
    <attribute name='type'>
      <value>logical</value>
    </attribute>
    <interleave>
      <ref name='commonMetadataNameOptional'/>
      <ref name='sizing'/>
      <ref name='sourcelogical'/>
      <ref name='targetlogical'/>
    </interleave>
  </define>

  <define name='pooldisk'>
    <attribute name='type'>
      <value>disk</value>
    </attribute>
    <interleave>
      <ref name='commonmetadata'/>
      <ref name='sizing'/>
      <ref name='sourcedisk'/>
      <ref name='target'/>
    </interleave>
  </define>

  <define name='pooliscsi'>
    <attribute name='type'>
      <value>iscsi</value>
    </attribute>
    <interleave>
      <ref name='commonmetadata'/>
      <ref name='sizing'/>
      <ref name='sourceiscsi'/>
      <ref name='target'/>
    </interleave>
  </define>

  <define name='pooliscsidirect'>
    <attribute name='type'>
      <value>iscsi-direct</value>
    </attribute>
    <interleave>
      <ref name='commonmetadata'/>
      <optional>
        <ref name='sizing'/>
      </optional>
      <ref name='sourceiscsidirect'/>
    </interleave>
  </define>

  <define name='poolscsi'>
    <attribute name='type'>
      <value>scsi</value>
    </attribute>
    <interleave>
      <ref name='commonmetadata'/>
      <ref name='sizing'/>
      <ref name='sourcescsi'/>
      <ref name='target'/>
    </interleave>
  </define>

  <define name='poolmpath'>
    <attribute name='type'>
      <value>mpath</value>
    </attribute>
    <interleave>
      <ref name='commonmetadata'/>
      <ref name='sizing'/>
      <optional>
        <ref name='sourcempath'/>
      </optional>
      <ref name='target'/>
    </interleave>
  </define>

  <define name='poolrbd'>
    <attribute name='type'>
      <value>rbd</value>
    </attribute>
    <interleave>
      <ref name='commonMetadataNameOptional'/>
      <ref name='sizing'/>
      <ref name='sourcerbd'/>
      <ref name='refresh'/>
    </interleave>
    <optional>
      <ref name='rbd_config_opts'/>
    </optional>
  </define>

  <define name='poolsheepdog'>
    <attribute name='type'>
      <value>sheepdog</value>
    </attribute>
    <interleave>
      <ref name='commonMetadataNameOptional'/>
      <ref name='sizing'/>
      <ref name='sourcesheepdog'/>
    </interleave>
  </define>

  <define name='poolgluster'>
    <attribute name='type'>
      <value>gluster</value>
    </attribute>
    <interleave>
      <ref name='commonMetadataNameOptional'/>
      <ref name='sizing'/>
      <ref name='sourcegluster'/>
    </interleave>
  </define>

  <define name='poolzfs'>
    <attribute name='type'>
      <value>zfs</value>
    </attribute>
    <interleave>
      <ref name='commonMetadataNameOptional'/>
      <ref name='sizing'/>
      <ref name='sourcezfs'/>
      <optional>
        <ref name='target'/>
      </optional>
    </interleave>
  </define>

  <define name='poolvstorage'>
    <attribute name='type'>
      <value>vstorage</value>
    </attribute>
    <interleave>
      <ref name='commonMetadataNameOptional'/>
      <ref name='sizing'/>
      <ref name='sourcevstorage'/>
      <ref name='target'/>
    </interleave>
  </define>

  <define name='sourceinfovendor'>
    <interleave>
      <optional>
        <element name='vendor'>
          <attribute name='name'>
            <text/>
          </attribute>
        </element>
      </optional>
      <optional>
        <element name='product'>
          <attribute name='name'>
            <text/>
          </attribute>
        </element>
      </optional>
    </interleave>
  </define>

  <define name='commonMetadataNameOptional'>
    <interleave>
      <optional>
        <element name='name'>
          <ref name='poolName'/>
        </element>
      </optional>
      <optional>
        <element name='uuid'>
          <ref name='UUID'/>
        </element>
      </optional>
    </interleave>
  </define>

  <define name='commonmetadata'>
    <interleave>
      <element name='name'>
        <ref name='poolName'/>
      </element>
      <optional>
        <element name='uuid'>
          <ref name='UUID'/>
        </element>
      </optional>
    </interleave>
  </define>

  <define name='sizing'>
    <interleave>
      <optional>
        <element name='capacity'>
          <ref name='scaledInteger'/>
        </element>
      </optional>
      <optional>
        <element name='allocation'>
          <ref name='scaledInteger'/>
        </element>
      </optional>
      <optional>
        <element name='available'>
          <ref name='scaledInteger'/>
        </element>
      </optional>
    </interleave>
  </define>

  <define name='target'>
    <element name='target'>
      <interleave>
        <element name='path'>
          <ref name='absFilePath'/>
        </element>
        <ref name='permissions'/>
      </interleave>
    </element>
  </define>

  <define name='targetlogical'>
    <element name='target'>
      <interleave>
        <optional>
          <element name='path'>
            <ref name='absFilePath'/>
          </element>
        </optional>
        <ref name='permissions'/>
      </interleave>
    </element>
  </define>

  <define name='sourceinfohost'>
    <oneOrMore>
      <element name='host'>
        <attribute name='name'>
          <choice>
            <ref name="dnsName"/>
            <ref name="ipAddr"/>
          </choice>
        </attribute>
        <optional>
          <attribute name='port'>
            <ref name="PortNumber"/>
          </attribute>
        </optional>
        <empty/>
      </element>
    </oneOrMore>
  </define>

  <define name='sourceinfodev'>
    <element name='device'>
      <attribute name='path'>
        <choice>
          <ref name='absFilePath'/>
          <ref name='genericName'/>
          <ref name='IscsiQualifiedName'/>
        </choice>
      </attribute>
      <choice>
        <empty/>
        <ref name='devextents'/>
      </choice>
      <optional>
        <attribute name="part_separator">
          <ref name="virYesNo"/>
        </attribute>
      </optional>
    </element>
  </define>

  <define name='sourceinfodeviscsidirect'>
    <element name='device'>
      <attribute name='path'>
        <ref name='IscsiQualifiedName'/>
      </attribute>
    </element>
  </define>

  <define name='devextents'>
    <oneOrMore>
      <element name='freeExtent'>
        <attribute name='start'>
          <ref name='unsignedLong'/>
        </attribute>
        <attribute name='end'>
          <ref name='unsignedLong'/>
        </attribute>
      </element>
    </oneOrMore>
  </define>

  <define name='sourceinfodir'>
    <element name='dir'>
      <attribute name='path'>
        <ref name='absDirPath'/>
      </attribute>
      <empty/>
    </element>
  </define>

  <define name='sourceinfonetrelativepath'>
    <element name='dir'>
      <attribute name='path'>
        <ref name='dirPath'/>
      </attribute>
      <empty/>
    </element>
  </define>

  <define name='sourceinfoname'>
    <element name='name'>
      <text/>
    </element>
  </define>

  <define name='sourceinfoauth'>
    <element name='auth'>
      <attribute name='type'>
        <choice>
          <value>chap</value>
          <value>ceph</value>
        </choice>
      </attribute>
      <attribute name='username'>
        <text/>
      </attribute>
      <ref name='sourceinfoauthsecret'/>
    </element>
  </define>

  <define name='sourceinfoauthsecret'>
    <element name='secret'>
      <choice>
        <attribute name='uuid'>
          <text/>
        </attribute>
        <attribute name='usage'>
          <text/>
        </attribute>
      </choice>
    </element>
  </define>

  <define name='sourcezfs'>
    <element name='source'>
      <interleave>
        <ref name='sourceinfoname'/>
        <optional>
          <ref name='sourceinfodev'/>
        </optional>
      </interleave>
    </element>
  </define>

  <define name='sourcevstorage'>
    <element name='source'>
      <interleave>
        <ref name='sourceinfoname'/>
      </interleave>
    </element>
  </define>

  <define name='sourcefmtfs'>
    <optional>
      <element name='format'>
        <attribute name='type'>
          <choice>
            <value>auto</value>
            <value>ext2</value>
            <value>ext3</value>
            <value>ext4</value>
            <value>ufs</value>
            <value>iso9660</value>
            <value>udf</value>
            <value>gfs</value>
            <value>gfs2</value>
            <value>vfat</value>
            <value>hfs+</value>
            <value>xfs</value>
            <value>ocfs2</value>
            <value>vmfs</value>
          </choice>
        </attribute>
      </element>
    </optional>
  </define>


  <define name='sourcefmtnetfs'>
    <optional>
      <element name='format'>
        <attribute name='type'>
          <choice>
            <value>auto</value>
            <value>nfs</value>
          </choice>
        </attribute>
      </element>
    </optional>
  </define>


  <define name='sourcefmtdisk'>
    <optional>
      <element name='format'>
        <attribute name='type'>
          <choice>
            <value>unknown</value>
            <value>dos</value>
            <value>dvh</value>
            <value>gpt</value>
            <value>mac</value>
            <value>bsd</value>
            <value>pc98</value>
            <value>sun</value>
            <value>lvm2</value>
          </choice>
        </attribute>
        <optional>
          <ref name='sourceinfovendor'/>
        </optional>
      </element>
    </optional>
  </define>


  <define name='sourcefmtlogical'>
    <optional>
      <element name='format'>
        <attribute name='type'>
          <choice>
            <value>unknown</value> <!-- back-compat requires keeping 'unknown' not 'auto' -->
            <value>lvm2</value>
          </choice>
        </attribute>
        <optional>
          <ref name='sourceinfovendor'/>
        </optional>
      </element>
    </optional>
  </define>


  <define name='sourcedir'>
    <optional>
      <element name='source'>
        <empty/>
        <optional>
          <ref name='sourceinfovendor'/>
        </optional>
      </element>
    </optional>
  </define>

  <define name='sourcefs'>
    <element name='source'>
      <interleave>
        <ref name='sourceinfodev'/>
        <ref name='sourcefmtfs'/>
        <optional>
          <ref name='sourceinfovendor'/>
        </optional>
      </interleave>
    </element>
  </define>

  <define name='sourcenetfs'>
    <element name='source'>
      <choice>
        <group>
          <interleave>
            <ref name='sourceinfohost'/>
            <ref name='sourceinfodir'/>
            <ref name='sourcefmtnetfs'/>
            <optional>
              <element name='protocol'>
                <attribute name='ver'>
                  <ref name='unsignedInt'/>
                </attribute>
              </element>
            </optional>
            <optional>
              <ref name='sourceinfovendor'/>
            </optional>
          </interleave>
        </group>
        <group>
          <interleave>
            <ref name='sourceinfohost'/>
            <ref name='sourceinfonetrelativepath'/>
            <element name='format'>
              <attribute name='type'>
                <choice>
                  <value>cifs</value>
                  <value>glusterfs</value>
                </choice>
              </attribute>
            </element>
            <optional>
              <ref name='sourceinfovendor'/>
            </optional>
          </interleave>
        </group>
      </choice>
    </element>
  </define>

  <define name='sourcelogical'>
    <element name='source'>
      <interleave>
        <oneOrMore>
          <optional>
            <ref name='sourceinfoname'/>
          </optional>
          <optional>
            <ref name='sourceinfodev'/>
          </optional>
        </oneOrMore>
        <ref name='sourcefmtlogical'/>
        <optional>
          <ref name='sourceinfovendor'/>
        </optional>
      </interleave>
    </element>
  </define>

  <define name='sourcedisk'>
    <element name='source'>
      <interleave>
        <ref name='sourceinfodev'/>
        <ref name='sourcefmtdisk'/>
        <optional>
          <ref name='sourceinfovendor'/>
        </optional>
      </interleave>
    </element>
  </define>

  <define name='sourceiscsi'>
    <element name='source'>
      <interleave>
        <ref name='sourceinfohost'/>
        <ref name='sourceinfodev'/>
        <optional>
          <ref name='initiatorinfo'/>
        </optional>
        <optional>
          <ref name='sourceinfoauth'/>
        </optional>
        <optional>
          <ref name='sourceinfovendor'/>
        </optional>
      </interleave>
    </element>
  </define>

  <define name='sourceiscsidirect'>
    <element name='source'>
      <interleave>
        <ref name='sourceinfohost'/>
        <ref name='sourceinfodeviscsidirect'/>
        <ref name='initiatorinfo'/>
        <optional>
          <ref name='sourceinfoauth'/>
        </optional>
      </interleave>
    </element>
  </define>

  <define name='sourcescsi'>
    <element name='source'>
      <interleave>
        <ref name='sourceinfoadapter'/>
        <optional>
          <ref name='sourceinfovendor'/>
        </optional>
      </interleave>
    </element>
  </define>

  <define name='sourcempath'>
    <element name='source'>
      <empty/>
    </element>
  </define>

  <define name='sourcerbd'>
    <element name='source'>
      <interleave>
        <ref name='sourceinfoname'/>
        <ref name='sourceinfohost'/>
        <optional>
          <ref name='sourceinfoauth'/>
        </optional>
      </interleave>
    </element>
  </define>

  <define name='sourcesheepdog'>
    <element name='source'>
      <interleave>
        <ref name='sourceinfohost'/>
        <ref name='sourceinfoname'/>
      </interleave>
    </element>
  </define>

  <define name='sourcegluster'>
    <element name='source'>
      <interleave>
        <ref name='sourceinfohost'/>
        <ref name='sourceinfoname'/>
        <optional>
          <ref name='sourceinfodir'/>
        </optional>
      </interleave>
    </element>
  </define>

  <define name='IscsiQualifiedName'>
    <data type='string'>
      <param name="pattern">iqn\.[0-9]{4}-(0[1-9]|1[0-2])\.[a-zA-Z0-9\.\-]+(:.+)?</param>
    </data>
  </define>

  <define name='refresh'>
    <optional>
      <element name='refresh'>
        <interleave>
          <ref name='refreshVolume'/>
        </interleave>
      </element>
    </optional>
  </define>

  <define name='refreshVolume'>
    <optional>
      <element name='volume'>
        <optional>
          <attribute name='allocation'>
            <ref name="refreshVolumeAllocation"/>
          </attribute>
        </optional>
      </element>
    </optional>
  </define>

  <!--
       Optional storage pool extensions in their own namespace:
         "fs" or "netfs"
    -->

  <define name="fs_mount_opts">
    <element name="mount_opts" ns="http://libvirt.org/schemas/storagepool/fs/1.0">
      <zeroOrMore>
        <element name="option">
          <attribute name='name'>
            <text/>
          </attribute>
        </element>
      </zeroOrMore>
    </element>
  </define>

  <!--
       Optional storage pool extensions in their own namespace:
         RBD
    -->

  <define name="rbd_config_opts">
    <element name="config_opts" ns="http://libvirt.org/schemas/storagepool/rbd/1.0">
      <zeroOrMore>
        <element name="option">
          <attribute name='name'>
            <text/>
          </attribute>
          <attribute name='value'>
            <text/>
          </attribute>
        </element>
      </zeroOrMore>
    </element>
  </define>

</grammar>
