si.xsd

<?xml version='1.0' encoding='UTF-8'?>

<xs:schema
    xmlns:xs='http://www.w3.org/2001/XMLSchema'
    targetNamespace='http://jabber.org/protocol/si'
    xmlns='http://jabber.org/protocol/si'
    elementFormDefault='qualified'>

  <xs:annotation>
    <xs:documentation>
      The protocol documented by this schema is defined in
      XEP-0095: https://xmpp.org/extensions/xep-0095.html
    </xs:documentation>
  </xs:annotation>

  <xs:import 
      namespace='http://jabber.org/protocol/feature-neg'
      schemaLocation='https://xmpp.org/schemas/feature-neg.xsd'/>

  <xs:element name='si'>
    <xs:annotation>
      <xs:documentation>
        This is the root content element. All other elements in
        this namespace are for communicating error information.
      </xs:documentation>
    </xs:annotation>
    <xs:complexType>
      <xs:sequence xmlns:fneg='http://jabber.org/protocol/feature-neg'>
        <xs:any namespace='##other' minOccurs='0'/>
        <xs:element ref='fneg:feature'/>
      </xs:sequence>
      <xs:attribute name='id' type='xs:string' use='optional'/>
      <xs:attribute name='mime-type' type='xs:string' use='optional'/>
      <xs:attribute name='profile' type='xs:string' use='optional'/>
    </xs:complexType>
  </xs:element>

  <xs:element name='bad-profile' type='empty'/>
  <xs:element name='no-valid-streams' type='empty'/>

  <xs:simpleType name='empty'>
    <xs:restriction base='xs:string'>
      <xs:enumeration value=''/>
    </xs:restriction>
  </xs:simpleType>

</xs:schema>