| /* |
| * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.security.ssl; |
| |
| import sun.security.action.GetPropertyAction; |
| |
| import java.io.File; |
| import java.io.FilePermission; |
| import java.io.IOException; |
| import java.security.AccessControlContext; |
| import java.security.AccessController; |
| import java.security.Principal; |
| import java.security.PrivilegedAction; |
| import java.security.SecureRandom; |
| import java.util.*; |
| |
| /** |
| * Models a service that provides support for a particular client key exchange |
| * mode. Currently used to implement Kerberos-related cipher suites. |
| * |
| * @since 9 |
| */ |
| public interface ClientKeyExchangeService { |
| |
| static class Loader { |
| private static final Map<String,ClientKeyExchangeService> |
| providers = new HashMap<>(); |
| |
| static { |
| final String key = "java.home"; |
| String path = AccessController.doPrivileged( |
| new GetPropertyAction(key), null, |
| new PropertyPermission(key, "read")); |
| ServiceLoader<ClientKeyExchangeService> sc = |
| AccessController.doPrivileged( |
| (PrivilegedAction<ServiceLoader<ClientKeyExchangeService>>) |
| () -> ServiceLoader.loadInstalled(ClientKeyExchangeService.class), |
| null, |
| new FilePermission(new File(path, "-").toString(), "read")); |
| Iterator<ClientKeyExchangeService> iter = sc.iterator(); |
| while (iter.hasNext()) { |
| ClientKeyExchangeService cs = iter.next(); |
| for (String ex: cs.supported()) { |
| providers.put(ex, cs); |
| } |
| } |
| } |
| |
| } |
| |
| public static ClientKeyExchangeService find(String ex) { |
| return Loader.providers.get(ex); |
| } |
| |
| |
| /** |
| * Returns the supported key exchange modes by this provider. |
| * @return the supported key exchange modes |
| */ |
| String[] supported(); |
| |
| /** |
| * Returns a generalized credential object on the server side. The server |
| * side can use the info to determine if a cipher suite can be enabled. |
| * @param acc the AccessControlContext of the SSL session |
| * @return the credential object |
| */ |
| Object getServiceCreds(AccessControlContext acc); |
| |
| /** |
| * Returns the host name for a service principal. The info can be used in |
| * SNI or host name verifier. |
| * @param principal the principal of a service |
| * @return the string formed host name |
| */ |
| String getServiceHostName(Principal principal); |
| |
| /** |
| * Returns whether the specified principal is related to the current |
| * SSLSession. The info can be used to verify a SSL resume. |
| * @param isClient if true called from client side, otherwise from server |
| * @param acc the AccessControlContext of the SSL session |
| * @param p the specified principal |
| * @return true if related |
| */ |
| boolean isRelated(boolean isClient, AccessControlContext acc, Principal p); |
| |
| /** |
| * Creates the ClientKeyExchange object on the client side. |
| * @param serverName the intented peer name |
| * @param acc the AccessControlContext of the SSL session |
| * @param protocolVersion the TLS protocol version |
| * @param rand the SecureRandom that will used to generate the premaster |
| * @return the new Exchanger object |
| * @throws IOException if there is an error |
| */ |
| ClientKeyExchange createClientExchange(String serverName, AccessControlContext acc, |
| ProtocolVersion protocolVersion, SecureRandom rand) throws IOException; |
| |
| /** |
| * Create the ClientKeyExchange on the server side. |
| * @param protocolVersion the protocol version |
| * @param clientVersion the input protocol version |
| * @param rand a SecureRandom object used to generate premaster |
| * (if the server has to create one) |
| * @param encodedTicket the ticket from client |
| * @param encrypted the encrypted premaster secret from client |
| * @param acc the AccessControlContext of the SSL session |
| * @param ServiceCreds the service side credentials object as retrived from |
| * {@link #getServiceCreds} |
| * @return the new Exchanger object |
| * @throws IOException if there is an error |
| */ |
| ClientKeyExchange createServerExchange( |
| ProtocolVersion protocolVersion, ProtocolVersion clientVersion, |
| SecureRandom rand, byte[] encodedTicket, byte[] encrypted, |
| AccessControlContext acc, Object ServiceCreds) throws IOException; |
| } |