| /* |
| * 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.hadoop.hbase.security; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.DataInputStream; |
| import java.io.IOException; |
| import java.util.Locale; |
| import java.util.Map; |
| |
| import javax.security.auth.callback.Callback; |
| import javax.security.auth.callback.CallbackHandler; |
| import javax.security.auth.callback.NameCallback; |
| import javax.security.auth.callback.PasswordCallback; |
| import javax.security.auth.callback.UnsupportedCallbackException; |
| import javax.security.sasl.AuthorizeCallback; |
| import javax.security.sasl.RealmCallback; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.hbase.classification.InterfaceAudience; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.ipc.RpcServer; |
| import org.apache.hadoop.hbase.security.SaslUtil.QualityOfProtection; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.apache.hadoop.security.token.SecretManager; |
| import org.apache.hadoop.security.token.TokenIdentifier; |
| import org.apache.hadoop.security.token.SecretManager.InvalidToken; |
| |
| /** |
| * A utility class for dealing with SASL on RPC server |
| */ |
| @InterfaceAudience.Private |
| public class HBaseSaslRpcServer { |
| private static final Log LOG = LogFactory.getLog(HBaseSaslRpcServer.class); |
| |
| private static Map<String, String> saslProps = null; |
| |
| public static void init(Configuration conf) { |
| saslProps = SaslUtil.initSaslProperties(conf.get("hbase.rpc.protection", |
| QualityOfProtection.AUTHENTICATION.name().toLowerCase(Locale.ROOT))); |
| } |
| |
| public static Map<String, String> getSaslProps() { |
| return saslProps; |
| } |
| |
| public static <T extends TokenIdentifier> T getIdentifier(String id, |
| SecretManager<T> secretManager) throws InvalidToken { |
| byte[] tokenId = SaslUtil.decodeIdentifier(id); |
| T tokenIdentifier = secretManager.createIdentifier(); |
| try { |
| tokenIdentifier.readFields(new DataInputStream(new ByteArrayInputStream( |
| tokenId))); |
| } catch (IOException e) { |
| throw (InvalidToken) new InvalidToken( |
| "Can't de-serialize tokenIdentifier").initCause(e); |
| } |
| return tokenIdentifier; |
| } |
| |
| |
| /** CallbackHandler for SASL DIGEST-MD5 mechanism */ |
| public static class SaslDigestCallbackHandler implements CallbackHandler { |
| private SecretManager<TokenIdentifier> secretManager; |
| private RpcServer.Connection connection; |
| |
| public SaslDigestCallbackHandler( |
| SecretManager<TokenIdentifier> secretManager, |
| RpcServer.Connection connection) { |
| this.secretManager = secretManager; |
| this.connection = connection; |
| } |
| |
| private char[] getPassword(TokenIdentifier tokenid) throws InvalidToken { |
| return SaslUtil.encodePassword(secretManager.retrievePassword(tokenid)); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void handle(Callback[] callbacks) throws InvalidToken, |
| UnsupportedCallbackException { |
| NameCallback nc = null; |
| PasswordCallback pc = null; |
| AuthorizeCallback ac = null; |
| for (Callback callback : callbacks) { |
| if (callback instanceof AuthorizeCallback) { |
| ac = (AuthorizeCallback) callback; |
| } else if (callback instanceof NameCallback) { |
| nc = (NameCallback) callback; |
| } else if (callback instanceof PasswordCallback) { |
| pc = (PasswordCallback) callback; |
| } else if (callback instanceof RealmCallback) { |
| continue; // realm is ignored |
| } else { |
| throw new UnsupportedCallbackException(callback, |
| "Unrecognized SASL DIGEST-MD5 Callback"); |
| } |
| } |
| if (pc != null) { |
| TokenIdentifier tokenIdentifier = getIdentifier(nc.getDefaultName(), secretManager); |
| char[] password = getPassword(tokenIdentifier); |
| UserGroupInformation user = null; |
| user = tokenIdentifier.getUser(); // may throw exception |
| connection.attemptingUser = user; |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("SASL server DIGEST-MD5 callback: setting password " |
| + "for client: " + tokenIdentifier.getUser()); |
| } |
| pc.setPassword(password); |
| } |
| if (ac != null) { |
| String authid = ac.getAuthenticationID(); |
| String authzid = ac.getAuthorizationID(); |
| if (authid.equals(authzid)) { |
| ac.setAuthorized(true); |
| } else { |
| ac.setAuthorized(false); |
| } |
| if (ac.isAuthorized()) { |
| if (LOG.isDebugEnabled()) { |
| String username = |
| getIdentifier(authzid, secretManager).getUser().getUserName(); |
| LOG.debug("SASL server DIGEST-MD5 callback: setting " |
| + "canonicalized client ID: " + username); |
| } |
| ac.setAuthorizedID(authzid); |
| } |
| } |
| } |
| } |
| |
| /** CallbackHandler for SASL GSSAPI Kerberos mechanism */ |
| public static class SaslGssCallbackHandler implements CallbackHandler { |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void handle(Callback[] callbacks) throws |
| UnsupportedCallbackException { |
| AuthorizeCallback ac = null; |
| for (Callback callback : callbacks) { |
| if (callback instanceof AuthorizeCallback) { |
| ac = (AuthorizeCallback) callback; |
| } else { |
| throw new UnsupportedCallbackException(callback, |
| "Unrecognized SASL GSSAPI Callback"); |
| } |
| } |
| if (ac != null) { |
| String authid = ac.getAuthenticationID(); |
| String authzid = ac.getAuthorizationID(); |
| if (authid.equals(authzid)) { |
| ac.setAuthorized(true); |
| } else { |
| ac.setAuthorized(false); |
| } |
| if (ac.isAuthorized()) { |
| if (LOG.isDebugEnabled()) |
| LOG.debug("SASL server GSSAPI callback: setting " |
| + "canonicalized client ID: " + authzid); |
| ac.setAuthorizedID(authzid); |
| } |
| } |
| } |
| } |
| } |