| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.cassandra.auth; |
| |
| import java.net.InetAddress; |
| import java.security.cert.Certificate; |
| |
| import org.apache.cassandra.exceptions.ConfigurationException; |
| |
| public interface IInternodeAuthenticator |
| { |
| /** |
| * Decides whether or not a peer is allowed to connect to this node. |
| * If this method returns false, the socket will be immediately closed. |
| * |
| * @param remoteAddress ip address of the connecting node. |
| * @param remotePort port of the connecting node. |
| * @return true if the connection should be accepted, false otherwise. |
| */ |
| @Deprecated |
| default boolean authenticate(InetAddress remoteAddress, int remotePort) |
| { |
| return false; |
| } |
| |
| /** |
| * Decides whether a peer is allowed to connect to this node. |
| * If this method returns false, the socket will be immediately closed. |
| * <p> |
| * Default implementation calls authenticate method by IP and port method |
| * <p> |
| * 1. If it is IP based authentication ignore the certificates & connectionType parameters in the implementation |
| * of this method. |
| * 2. For certificate based authentication like mTLS, server's identity for outbound connections is verified by the |
| * trusted root certificates in the outbound_keystore. In such cases this method may be overridden to return true |
| * when certificateType is OUTBOUND, as the authentication of the server happens during SSL Handshake. |
| * |
| * @param remoteAddress ip address of the connecting node. |
| * @param remotePort port of the connecting node. |
| * @param certificates peer certificates |
| * @param connectionType If the connection is inbound/outbound connection. |
| * @return true if the connection should be accepted, false otherwise. |
| */ |
| default boolean authenticate(InetAddress remoteAddress, int remotePort, |
| Certificate[] certificates, InternodeConnectionDirection connectionType) |
| { |
| return authenticate(remoteAddress, remotePort); |
| } |
| |
| /** |
| * Validates configuration of IInternodeAuthenticator implementation (if configurable). |
| * |
| * @throws ConfigurationException when there is a configuration error. |
| */ |
| void validateConfiguration() throws ConfigurationException; |
| |
| /** |
| * Setup is called once upon system startup to initialize the IAuthenticator. |
| * |
| * For example, use this method to create any required keyspaces/column families. |
| */ |
| default void setupInternode() |
| { |
| |
| } |
| |
| /** |
| * Enum that represents connection type of internode connection. |
| * |
| * INBOUND - called after connection established, with certificate available if present. |
| * OUTBOUND - called after connection established, with certificate available if present. |
| * OUTBOUND_PRECONNECT - called before initiating a connection, without certificate available. |
| * The outbound connection will be authenticated with the certificate once a redirected connection is established. |
| * This is an extra check that can be used to detect misconfiguration before reconnection, or ignored by returning true. |
| */ |
| enum InternodeConnectionDirection |
| { |
| INBOUND, |
| OUTBOUND, |
| OUTBOUND_PRECONNECT |
| } |
| } |