HBASE-27923 NettyRpcServer may hange if it should skip initial sasl h…

…andshake (#5283)

Signed-off-by: Duo Zhang <zhangduo@apache.org>
Signed-off-by: Wellington Chevreuil <wchevreuil@apache.rog>

hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAdmin.java

@@ -39,8 +39,8 @@
 import org.apache.hadoop.hbase.TableExistsException;
 import org.apache.hadoop.hbase.TableName;
 import org.apache.hadoop.hbase.TableNotFoundException;
-import org.apache.hadoop.hbase.master.LoadBalancer;
 import org.apache.hadoop.hbase.master.HMaster;
+import org.apache.hadoop.hbase.master.LoadBalancer;
 import org.apache.hadoop.hbase.master.assignment.AssignmentManager;
 import org.apache.hadoop.hbase.master.assignment.RegionStateNode;
 import org.apache.hadoop.hbase.regionserver.storefiletracker.StoreFileTrackerFactory;

hbase-server/src/test/java/org/apache/hadoop/hbase/ipc/TestRpcSkipInitialSaslHandshake.java

@@ -0,0 +1,185 @@
+/*
+ * 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.ipc;
+
+import static org.apache.hadoop.hbase.ipc.TestProtobufRpcServiceImpl.SERVICE;
+import static org.apache.hadoop.hbase.ipc.TestProtobufRpcServiceImpl.newBlockingStub;
+import static org.apache.hadoop.hbase.security.HBaseKerberosUtils.getKeytabFileForTesting;
+import static org.apache.hadoop.hbase.security.HBaseKerberosUtils.getPrincipalForTesting;
+import static org.apache.hadoop.hbase.security.HBaseKerberosUtils.setSecuredConfiguration;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import java.io.File;
+import java.net.InetSocketAddress;
+import java.util.concurrent.atomic.AtomicBoolean;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.CommonConfigurationKeys;
+import org.apache.hadoop.hbase.HBaseClassTestRule;
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HConstants;
+import org.apache.hadoop.hbase.security.HBaseKerberosUtils;
+import org.apache.hadoop.hbase.security.SecurityInfo;
+import org.apache.hadoop.hbase.security.User;
+import org.apache.hadoop.hbase.testclassification.MediumTests;
+import org.apache.hadoop.hbase.testclassification.RPCTests;
+import org.apache.hadoop.minikdc.MiniKdc;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+import org.mockito.Mockito;
+
+import org.apache.hbase.thirdparty.com.google.common.collect.Lists;
+import org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf;
+import org.apache.hbase.thirdparty.io.netty.channel.Channel;
+import org.apache.hbase.thirdparty.io.netty.channel.ChannelHandlerContext;
+
+import org.apache.hadoop.hbase.shaded.ipc.protobuf.generated.TestProtos;
+import org.apache.hadoop.hbase.shaded.ipc.protobuf.generated.TestRpcServiceProtos.TestProtobufRpcProto.BlockingInterface;
+
+@Category({ RPCTests.class, MediumTests.class })
+public class TestRpcSkipInitialSaslHandshake {
+
+  @ClassRule
+  public static final HBaseClassTestRule CLASS_RULE =
+    HBaseClassTestRule.forClass(TestRpcSkipInitialSaslHandshake.class);
+
+  protected static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
+
+  protected static final File KEYTAB_FILE =
+    new File(TEST_UTIL.getDataTestDir("keytab").toUri().getPath());
+
+  protected static MiniKdc KDC;
+  protected static String HOST = "localhost";
+  protected static String PRINCIPAL;
+
+  protected String krbKeytab;
+  protected String krbPrincipal;
+  protected UserGroupInformation ugi;
+  protected Configuration clientConf;
+  protected Configuration serverConf;
+
+  protected static void initKDCAndConf() throws Exception {
+    KDC = TEST_UTIL.setupMiniKdc(KEYTAB_FILE);
+    PRINCIPAL = "hbase/" + HOST;
+    KDC.createPrincipal(KEYTAB_FILE, PRINCIPAL);
+    HBaseKerberosUtils.setPrincipalForTesting(PRINCIPAL + "@" + KDC.getRealm());
+    // set a smaller timeout and retry to speed up tests
+    TEST_UTIL.getConfiguration().setInt(RpcClient.SOCKET_TIMEOUT_READ, 2000000000);
+    TEST_UTIL.getConfiguration().setInt("hbase.security.relogin.maxretries", 1);
+  }
+
+  protected static void stopKDC() throws InterruptedException {
+    if (KDC != null) {
+      KDC.stop();
+    }
+  }
+
+  protected final void setUpPrincipalAndConf() throws Exception {
+    krbKeytab = getKeytabFileForTesting();
+    krbPrincipal = getPrincipalForTesting();
+    ugi = loginKerberosPrincipal(krbKeytab, krbPrincipal);
+    clientConf = new Configuration(TEST_UTIL.getConfiguration());
+    setSecuredConfiguration(clientConf);
+    clientConf.setBoolean(RpcClient.IPC_CLIENT_FALLBACK_TO_SIMPLE_AUTH_ALLOWED_KEY, true);
+    serverConf = new Configuration(TEST_UTIL.getConfiguration());
+  }
+
+  @BeforeClass
+  public static void setUp() throws Exception {
+    initKDCAndConf();
+  }
+
+  @AfterClass
+  public static void tearDown() throws Exception {
+    stopKDC();
+    TEST_UTIL.cleanupTestDir();
+  }
+
+  @Before
+  public void setUpTest() throws Exception {
+    setUpPrincipalAndConf();
+  }
+
+  private UserGroupInformation loginKerberosPrincipal(String krbKeytab, String krbPrincipal)
+    throws Exception {
+    Configuration cnf = new Configuration();
+    cnf.set(CommonConfigurationKeys.HADOOP_SECURITY_AUTHENTICATION, "kerberos");
+    UserGroupInformation.setConfiguration(cnf);
+    UserGroupInformation.loginUserFromKeytab(krbPrincipal, krbKeytab);
+    return UserGroupInformation.getLoginUser();
+  }
+
+  /**
+   * This test is for HBASE-27923,which NettyRpcServer may hange if it should skip initial sasl
+   * handshake.
+   */
+  @Test
+  public void test() throws Exception {
+    SecurityInfo securityInfoMock = Mockito.mock(SecurityInfo.class);
+    Mockito.when(securityInfoMock.getServerPrincipal())
+      .thenReturn(HBaseKerberosUtils.KRB_PRINCIPAL);
+    SecurityInfo.addInfo("TestProtobufRpcProto", securityInfoMock);
+
+    final AtomicBoolean useSaslRef = new AtomicBoolean(false);
+    NettyRpcServer rpcServer = new NettyRpcServer(null, getClass().getSimpleName(),
+      Lists.newArrayList(new RpcServer.BlockingServiceAndInterface(SERVICE, null)),
+      new InetSocketAddress(HOST, 0), serverConf, new FifoRpcScheduler(serverConf, 1), true) {
+
+      @Override
+      protected NettyRpcServerPreambleHandler createNettyRpcServerPreambleHandler() {
+        return new NettyRpcServerPreambleHandler(this) {
+          private NettyServerRpcConnection conn;
+
+          @Override
+          protected void channelRead0(ChannelHandlerContext ctx, ByteBuf msg) throws Exception {
+            super.channelRead0(ctx, msg);
+            useSaslRef.set(conn.useSasl);
+
+          }
+
+          @Override
+          protected NettyServerRpcConnection createNettyServerRpcConnection(Channel channel) {
+            conn = super.createNettyServerRpcConnection(channel);
+            return conn;
+          }
+        };
+      }
+    };
+
+    rpcServer.start();
+    try (NettyRpcClient rpcClient =
+      new NettyRpcClient(clientConf, HConstants.DEFAULT_CLUSTER_ID.toString(), null, null)) {
+      BlockingInterface stub = newBlockingStub(rpcClient, rpcServer.getListenerAddress(),
+        User.create(UserGroupInformation.getCurrentUser()));
+
+      String response =
+        stub.echo(null, TestProtos.EchoRequestProto.newBuilder().setMessage("test").build())
+          .getMessage();
+      assertTrue("test".equals(response));
+      assertFalse(useSaslRef.get());
+
+    } finally {
+      rpcServer.stop();
+    }
+  }
+}