Added payloads for IKEv1 NAT-Traversal negotiation.

src/libcharon/encoding/payloads/hash_payload.h

@@ -59,8 +59,9 @@ struct hash_payload_t {
 /**
  * Creates an empty hash_payload_t object.
  *
+ * @param type		either HASH_V1 or NAT_D_V1
  * @return			hash_payload_t object
  */
-hash_payload_t *hash_payload_create();
+hash_payload_t *hash_payload_create(payload_type_t type);
 
 #endif /** HASH_PAYLOAD_H_ @}*/