added get_identifier() and set_identifier() methods

src/libcharon/sa/authenticators/eap/eap_method.h

@@ -120,6 +120,21 @@ struct eap_method_t {
 	 */
 	status_t (*get_msk) (eap_method_t *this, chunk_t *msk);
 
+	/**
+	 * Get the current EAP identifier.
+	 *
+	 * @return				current EAP identifier
+	 */
+	u_int8_t (*get_identifier) (eap_method_t *this);
+
+	/**
+	 * Set the EAP identifier to a deterministic value, overwriting
+	 * the randomly initialized default value.
+	 *
+	 * @param identifier	current EAP identifier
+	 */
+	void (*set_identifier) (eap_method_t *this, u_int8_t identifier);
+
 	/**
 	 * Destroys a eap_method_t object.
 	 */