diff --git a/include/libvirt/libvirt.h b/include/libvirt/libvirt.h
index 779ea72..cac400e 100644
--- a/include/libvirt/libvirt.h
+++ b/include/libvirt/libvirt.h
@@ -854,7 +854,73 @@ int                     virNetworkGetAutostart  (virNetworkPtr network,
 int                     virNetworkSetAutostart  (virNetworkPtr network,
                                                  int autostart);
 
+/*
+ * Physical host interface configuration API
+ */
+
+/**
+ * virInterface:
+ *
+ * a virInterface is a private structure representing a virtual interface.
+ */
+typedef struct _virInterface virInterface;
+
+/**
+ * virInterfacePtr:
+ *
+ * a virInterfacePtr is pointer to a virInterface private structure, this is the
+ * type used to reference a virtual interface in the API.
+ */
+typedef virInterface *virInterfacePtr;
+
+/*
+ * Get connection from interface.
+ */
+virConnectPtr           virInterfaceGetConnect    (virInterfacePtr interface);
+
+/*
+ * List defined interfaces
+ */
+int                     virConnectNumOfInterfaces (virConnectPtr conn);
+int                     virConnectListInterfaces  (virConnectPtr conn,
+                                                   char **const names,
+                                                   int maxnames);
+
+/*
+ * Lookup interface by name
+ */
+virInterfacePtr         virInterfaceLookupByName  (virConnectPtr conn,
+                                                   const char *name);
+                                                   const char *uuid);
+
+/*
+ * Define interface (or modify existing interface configuration)
+ */
+virInterfacePtr         virInterfaceDefineXML     (virConnectPtr conn,
+                                                   const char *xmlDesc);
+
+/*
+ * Delete interface
+ */
+int                     virInterfaceUndefine      (virInterfacePtr interface);
+
+/*
+ * Activate interface (ie call "ifup")
+ */
+int                     virInterfaceStart         (virInterfacePtr interface);
+
+/*
+ * De-activate interface (call "ifdown")
+ */
+int                     virInterfaceStop          (virInterfacePtr interface);
+
+/*
+ * Interface information
+ */
+const char*             virInterfaceGetName       (virInterfacePtr interface);
 
+char *                  virInterfaceGetXMLDesc    (virInterfacePtr interface,
+                                                   int flags);
 /**
  * virStoragePool:
  *